JP2000153214A - Coating liquid producing device and coating method - Google Patents
Coating liquid producing device and coating methodInfo
- Publication number
- JP2000153214A JP2000153214A JP10332591A JP33259198A JP2000153214A JP 2000153214 A JP2000153214 A JP 2000153214A JP 10332591 A JP10332591 A JP 10332591A JP 33259198 A JP33259198 A JP 33259198A JP 2000153214 A JP2000153214 A JP 2000153214A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- coating liquid
- liquid supply
- layer
- additive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 427
- 239000011248 coating agent Substances 0.000 title claims abstract description 387
- 239000007788 liquid Substances 0.000 title claims abstract description 290
- 239000000654 additive Substances 0.000 claims abstract description 83
- 230000000996 additive effect Effects 0.000 claims abstract description 56
- 239000004094 surface-active agent Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000006224 matting agent Substances 0.000 claims abstract description 17
- 239000004034 viscosity adjusting agent Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000007766 curtain coating Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- 150000005846 sugar alcohols Polymers 0.000 claims description 8
- 230000003746 surface roughness Effects 0.000 claims description 7
- 239000010410 layer Substances 0.000 abstract description 107
- 239000011247 coating layer Substances 0.000 abstract description 7
- 238000005187 foaming Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 55
- 239000010408 film Substances 0.000 description 16
- -1 silver halide Chemical class 0.000 description 16
- 108010010803 Gelatin Proteins 0.000 description 14
- 238000010586 diagram Methods 0.000 description 14
- 239000008273 gelatin Substances 0.000 description 14
- 229920000159 gelatin Polymers 0.000 description 14
- 235000019322 gelatine Nutrition 0.000 description 14
- 235000011852 gelatine desserts Nutrition 0.000 description 14
- 239000011324 bead Substances 0.000 description 12
- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 239000000839 emulsion Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000011734 sodium Substances 0.000 description 6
- 230000006837 decompression Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 3
- 229940035437 1,3-propanediol Drugs 0.000 description 3
- 239000004386 Erythritol Substances 0.000 description 3
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- GHLKSLMMWAKNBM-UHFFFAOYSA-N dodecane-1,12-diol Chemical compound OCCCCCCCCCCCCO GHLKSLMMWAKNBM-UHFFFAOYSA-N 0.000 description 3
- 235000019414 erythritol Nutrition 0.000 description 3
- 229940009714 erythritol Drugs 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 3
- LUUFSCNUZAYHAT-UHFFFAOYSA-N octadecane-1,18-diol Chemical compound OCCCCCCCCCCCCCCCCCCO LUUFSCNUZAYHAT-UHFFFAOYSA-N 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XSMIOONHPKRREI-UHFFFAOYSA-N undecane-1,11-diol Chemical compound OCCCCCCCCCCCO XSMIOONHPKRREI-UHFFFAOYSA-N 0.000 description 3
- CPEMSVQIDGEZCG-AATRIKPKSA-N (e)-2,5-dimethylhex-3-ene-2,5-diol Chemical compound CC(C)(O)\C=C\C(C)(C)O CPEMSVQIDGEZCG-AATRIKPKSA-N 0.000 description 2
- LFUPTFHBGBCXDZ-OWOJBTEDSA-N (e)-hex-3-ene-1,2,5,6-tetrol Chemical compound OCC(O)\C=C\C(O)CO LFUPTFHBGBCXDZ-OWOJBTEDSA-N 0.000 description 2
- CPEMSVQIDGEZCG-WAYWQWQTSA-N (z)-2,5-dimethylhex-3-ene-2,5-diol Chemical compound CC(C)(O)\C=C/C(C)(C)O CPEMSVQIDGEZCG-WAYWQWQTSA-N 0.000 description 2
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 description 2
- QHDADHHODABHLK-UHFFFAOYSA-N 2,2-dimethylpentane-1,3-diol Chemical compound CCC(O)C(C)(C)CO QHDADHHODABHLK-UHFFFAOYSA-N 0.000 description 2
- SBNZEELAPMRROC-UHFFFAOYSA-N 2,4-dimethylhexane-2,3,4-triol Chemical compound CCC(C)(O)C(O)C(C)(C)O SBNZEELAPMRROC-UHFFFAOYSA-N 0.000 description 2
- AIUFBIQURVCZNA-UHFFFAOYSA-N 2,4-dimethylpentane-2,3,4-triol Chemical compound CC(C)(O)C(O)C(C)(C)O AIUFBIQURVCZNA-UHFFFAOYSA-N 0.000 description 2
- IHJUECRFYCQBMW-UHFFFAOYSA-N 2,5-dimethylhex-3-yne-2,5-diol Chemical compound CC(C)(O)C#CC(C)(C)O IHJUECRFYCQBMW-UHFFFAOYSA-N 0.000 description 2
- ZWNMRZQYWRLGMM-UHFFFAOYSA-N 2,5-dimethylhexane-2,5-diol Chemical compound CC(C)(O)CCC(C)(C)O ZWNMRZQYWRLGMM-UHFFFAOYSA-N 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 2
- HEBKCHPVOIAQTA-QWWZWVQMSA-N D-arabinitol Chemical compound OC[C@@H](O)C(O)[C@H](O)CO HEBKCHPVOIAQTA-QWWZWVQMSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- DLDJFQGPPSQZKI-UHFFFAOYSA-N but-2-yne-1,4-diol Chemical compound OCC#CCO DLDJFQGPPSQZKI-UHFFFAOYSA-N 0.000 description 2
- FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- CAPUIYPMKMKPHD-UHFFFAOYSA-N hex-3-yne-1,2,5,6-tetrol Chemical compound OCC(O)C#CC(O)CO CAPUIYPMKMKPHD-UHFFFAOYSA-N 0.000 description 2
- AMXRXGOSEWMPEF-UHFFFAOYSA-N hexane-1,2,5,6-tetrol Chemical compound OCC(O)CCC(O)CO AMXRXGOSEWMPEF-UHFFFAOYSA-N 0.000 description 2
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 2
- QPNQLFAXFXPMSV-UHFFFAOYSA-N hexane-2,3,4-triol Chemical compound CCC(O)C(O)C(C)O QPNQLFAXFXPMSV-UHFFFAOYSA-N 0.000 description 2
- OHMBHFSEKCCCBW-UHFFFAOYSA-N hexane-2,5-diol Chemical compound CC(O)CCC(C)O OHMBHFSEKCCCBW-UHFFFAOYSA-N 0.000 description 2
- KHLCTMQBMINUNT-UHFFFAOYSA-N octadecane-1,12-diol Chemical compound CCCCCCC(O)CCCCCCCCCCCO KHLCTMQBMINUNT-UHFFFAOYSA-N 0.000 description 2
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- HEBKCHPVOIAQTA-ZXFHETKHSA-N ribitol Chemical compound OC[C@H](O)[C@H](O)[C@H](O)CO HEBKCHPVOIAQTA-ZXFHETKHSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 2
- NHQVTOYJPBRYNG-UHFFFAOYSA-M sodium;2,4,7-tri(propan-2-yl)naphthalene-1-sulfonate Chemical compound [Na+].CC(C)C1=CC(C(C)C)=C(S([O-])(=O)=O)C2=CC(C(C)C)=CC=C21 NHQVTOYJPBRYNG-UHFFFAOYSA-M 0.000 description 2
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 description 2
- XLKZJJVNBQCVIX-UHFFFAOYSA-N tetradecane-1,14-diol Chemical compound OCCCCCCCCCCCCCCO XLKZJJVNBQCVIX-UHFFFAOYSA-N 0.000 description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 2
- LUMLZKVIXLWTCI-NSCUHMNNSA-N (e)-2,3-dichloro-4-oxobut-2-enoic acid Chemical compound OC(=O)C(\Cl)=C(/Cl)C=O LUMLZKVIXLWTCI-NSCUHMNNSA-N 0.000 description 1
- YLVACWCCJCZITJ-UHFFFAOYSA-N 1,4-dioxane-2,3-diol Chemical compound OC1OCCOC1O YLVACWCCJCZITJ-UHFFFAOYSA-N 0.000 description 1
- SIQZJFKTROUNPI-UHFFFAOYSA-N 1-(hydroxymethyl)-5,5-dimethylhydantoin Chemical compound CC1(C)N(CO)C(=O)NC1=O SIQZJFKTROUNPI-UHFFFAOYSA-N 0.000 description 1
- FYBFGAFWCBMEDG-UHFFFAOYSA-N 1-[3,5-di(prop-2-enoyl)-1,3,5-triazinan-1-yl]prop-2-en-1-one Chemical compound C=CC(=O)N1CN(C(=O)C=C)CN(C(=O)C=C)C1 FYBFGAFWCBMEDG-UHFFFAOYSA-N 0.000 description 1
- FJGNTEKSQVNVTJ-UHFFFAOYSA-N 1-deoxy-D-lyxitol Natural products CC(O)C(O)C(O)CO FJGNTEKSQVNVTJ-UHFFFAOYSA-N 0.000 description 1
- JCTXKRPTIMZBJT-UHFFFAOYSA-N 2,2,4-trimethylpentane-1,3-diol Chemical compound CC(C)C(O)C(C)(C)CO JCTXKRPTIMZBJT-UHFFFAOYSA-N 0.000 description 1
- YKUDHBLDJYZZQS-UHFFFAOYSA-N 2,6-dichloro-1h-1,3,5-triazin-4-one Chemical compound OC1=NC(Cl)=NC(Cl)=N1 YKUDHBLDJYZZQS-UHFFFAOYSA-N 0.000 description 1
- PHBQDVOLZRHPOJ-UHFFFAOYSA-N 3-ethenylsulfonyl-n-[(3-ethenylsulfonylpropanoylamino)methyl]propanamide Chemical compound C=CS(=O)(=O)CCC(=O)NCNC(=O)CCS(=O)(=O)C=C PHBQDVOLZRHPOJ-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- HEBKCHPVOIAQTA-NGQZWQHPSA-N D-Arabitol Natural products OC[C@H](O)C(O)[C@H](O)CO HEBKCHPVOIAQTA-NGQZWQHPSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- 229920002085 Dialdehyde starch Polymers 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- JQIZFAZDGDIWSW-FPLPWBNLSA-N O(C1=CC=CC=C1)C(/C(=C(C(=O)O)/Cl)/Cl)=O Chemical compound O(C1=CC=CC=C1)C(/C(=C(C(=O)O)/Cl)/Cl)=O JQIZFAZDGDIWSW-FPLPWBNLSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- RGCKGOZRHPZPFP-UHFFFAOYSA-N alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000002012 dioxanes Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- FBPFZTCFMRRESA-GUCUJZIJSA-N galactitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-GUCUJZIJSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 150000002545 isoxazoles Chemical class 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- ZAKLKBFCSHJIRI-UHFFFAOYSA-N mucochloric acid Natural products OC1OC(=O)C(Cl)=C1Cl ZAKLKBFCSHJIRI-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- QUBQYFYWUJJAAK-UHFFFAOYSA-N oxymethurea Chemical compound OCNC(=O)NCO QUBQYFYWUJJAAK-UHFFFAOYSA-N 0.000 description 1
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
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Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は製造装置および塗布
方法に関し、詳しくは塗布液供給釜から塗布液を塗布装
置に供給する際の供給経路、または供給経路中で添加剤
を添加（インライン添加）する機構に特徴のある塗布製
造装置および塗布方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing apparatus and a coating method, and more particularly, to a supply path for supplying a coating liquid from a coating liquid supply tank to a coating apparatus, or to adding an additive in the supply path (in-line addition). The present invention relates to a coating manufacturing apparatus and a coating method characterized by a mechanism for performing the coating.
【０００２】[0002]
【従来の技術】複数層からなる塗膜を支持体上に塗布、
乾燥して製造する製品においては、多種の素材を混合し
た塗布液を層の数だけ作製し、これらの塗布液をそれぞ
れ別の塗布液供給釜から塗布装置の塗布液供給口まで送
液して塗布を行う。近年の製品の高機能化に伴い、特に
写真感光材料に代表される塗膜は、塗布液の層数を増加
させる傾向にある。しかし、この増加させた層というの
は、同じまたは似通った塗布液層であることも多い。こ
れら同じまたは似通った複数の塗布液を、別々に作製
し、別々の塗布液供給釜に貯留するということは、製造
コスト上の問題だけでなく、同じまたは似通った塗布液
の組成のバラツキという問題も起こりやすくなる。2. Description of the Related Art A coating film comprising a plurality of layers is coated on a support,
In products manufactured by drying, coating liquids prepared by mixing various types of materials are prepared in the number of layers, and these coating liquids are respectively sent from different coating liquid supply tanks to the coating liquid supply port of the coating apparatus. Apply. In recent years, as the functionality of products has become higher, the number of layers of a coating solution tends to increase, particularly for coating films represented by photographic light-sensitive materials. However, the increased layer is often the same or similar coating liquid layer. Producing these same or similar coating liquids separately and storing them in separate coating liquid supply tanks is not only a problem in terms of manufacturing cost, but also a problem in that the composition of the same or similar coating liquids varies. Is also likely to occur.
【０００３】一方、生産効率向上の観点から、塗膜を高
速で塗布、乾燥することが求められている。高速で支持
体を搬送して、その上に塗布、乾燥しようとすると、同
じ製造ラインであれば必然的に塗膜の乾燥時間を短くし
なければならない。この乾燥ラインの負荷軽減のため
に、塗布液を濃縮することが必要となるが、塗布液を濃
縮して粘度を高くすると、かえって塗布可能最大速度が
小さくなってしまうという問題を生じることがわかって
いる。これを解決するために特開昭５９−１００４３５
号や特表平６−５０３７５３号では、塗布速度を上げる
ためだけに、低粘度の塗布液層を支持体と接する最下層
として設ける技術が開示されている。On the other hand, from the viewpoint of improving production efficiency, it is required to apply and dry a coating film at high speed. When the support is conveyed at a high speed, and the coating and drying are performed thereon, the drying time of the coating film must be shortened in the same production line. In order to reduce the load on the drying line, it is necessary to concentrate the coating solution, but it has been found that when the coating solution is concentrated to increase the viscosity, the problem arises that the maximum speed at which coating can be performed is reduced. ing. To solve this problem, Japanese Patent Application Laid-Open No. 59-100435
Japanese Patent Application Laid-Open No. HEI 6-503753 discloses a technique in which a low-viscosity coating liquid layer is provided as a lowermost layer in contact with a support just to increase the coating speed.
【０００４】このように要求される性能を満たすために
必要な塗布液層だけでも数が多いのに加え、塗布性能を
上げるためだけの層を別に設けるということは、塗布液
供給釜を増設しなければならず、製造コストの面で好ま
しくない。[0004] In addition to the large number of coating liquid layers necessary for satisfying the required performance as described above, the provision of a separate layer only for improving the coating performance requires an additional coating liquid supply tank. And it is not preferable in terms of manufacturing cost.
【０００５】また、上記高速塗布のために塗布液を濃縮
し粘度を上げた場合、多数の素材や添加物を混合して均
一な塗布液を得るためには、粘度が低い場合に比べて攪
拌をより念入りに行わなければならない。しかし、容量
の大きい塗布液供給釜での混合は素材によっては十分出
来ない場合もあり、また、念入りな攪拌を行うと塗布液
が発泡してしまい、さらに塗布液の粘度が高いためにそ
の脱泡にも時間がかかるという問題も発生することがわ
かった。When the coating solution is concentrated to increase the viscosity for high-speed coating, a large number of materials and additives are mixed to obtain a uniform coating solution. Must be done more carefully. However, mixing in a large-capacity coating liquid supply tank may not be sufficient depending on the material, and if careful stirring is performed, the coating liquid foams, and the viscosity of the coating liquid is high. It has been found that a problem that foam takes time also occurs.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上記述べた
ような、同じまたは類似の塗布層を複数設ける塗布製造
装置または塗布方法において、効率的で性能も優れ、製
造コストがかからない塗布方法を提供するものである。
また、高速塗布可能な高粘度塗布液において、添加剤の
均一な分散を可能とし、塗布液の発泡も抑えた塗布液調
整方法を提供する。SUMMARY OF THE INVENTION The present invention relates to a coating production apparatus or a coating method in which a plurality of the same or similar coating layers are provided as described above. To provide.
In addition, the present invention provides a method for preparing a coating solution that enables uniform dispersion of additives in a high-viscosity coating solution that can be applied at a high speed and suppresses foaming of the coating solution.
【０００７】[0007]
【課題を解決するための手段】上記課題は以下の構成に
よって達成された。The above object has been attained by the following constitutions.
【０００８】１．塗布液を、塗布液供給釜から送液管を
通じて塗布装置に送液し、塗布する塗布方法において、
粘度調整剤、マット剤および界面活性剤の中から選ばれ
る少なくとも１つの添加剤を、前記送液管中に供給する
ことにより前記塗布液に対して添加することを特徴とす
る塗布方法。[0008] 1. In a coating method, a coating liquid is supplied from a coating liquid supply tank to a coating apparatus through a liquid feed pipe and coated.
A coating method, wherein at least one additive selected from a viscosity modifier, a matting agent, and a surfactant is added to the coating solution by supplying the additive into the liquid sending tube.
【０００９】２．前記送液管中にさらに硬膜剤を供給
し、添加することを特徴とする上記１に記載の塗布方
法。[0009] 2. 2. The coating method according to the above item 1, wherein a hardening agent is further supplied and added into the liquid sending tube.
【００１０】３．複数の添加剤を予め混合し、前記塗布
液の送液管中に供給することを特徴とする上記１に記載
の塗布方法。[0010] 3. 2. The coating method according to the above item 1, wherein a plurality of additives are preliminarily mixed and supplied into a liquid feed pipe of the coating liquid.
【００１１】４．複数の添加剤をそれぞれ前記塗布液の
送液管中に別々に供給することを特徴とする上記１に記
載の塗布方法。4. 2. The coating method according to the above item 1, wherein a plurality of additives are separately supplied into the liquid feed pipe of the coating liquid.
【００１２】５．塗布液供給釜と、塗布装置と、前記塗
布液供給釜から前記塗布装置に塗布液を供給するための
塗布液供給経路を有し、前記塗布液供給経路が複数ある
ことを特徴とする塗布製造装置。5. A coating liquid supply tank, a coating apparatus, and a coating liquid supply path for supplying a coating liquid from the coating liquid supply tank to the coating apparatus, wherein a plurality of the coating liquid supply paths are provided. apparatus.
【００１３】６．前記複数の塗布液供給経路が、複数の
塗布装置につながっていることを特徴とする上記５に記
載の塗布製造装置。6. 6. The coating production apparatus according to the above item 5, wherein the plurality of coating liquid supply paths are connected to a plurality of coating apparatuses.
【００１４】７．前記複数の塗布液供給経路は、前記塗
布液供給釜から出る１つの送液管より複数の送液管に分
岐することを特徴とする上記５または６に記載の塗布製
造装置。7. 7. The coating production apparatus according to the above item 5 or 6, wherein the plurality of coating liquid supply paths are branched from a single liquid feeding pipe exiting from the coating liquid supply kettle to a plurality of liquid feeding pipes.
【００１５】８．前記塗布液供給釜に複数の塗布液供給
口が付いており、複数の送液管につながっていることを
特徴とする上記５または６に記載の塗布製造装置。[8] 7. The coating production apparatus according to the above item 5 or 6, wherein the coating liquid supply pot has a plurality of coating liquid supply ports and is connected to a plurality of liquid feeding pipes.
【００１６】９．上記５ないし８の少なくとも１つに記
載の塗布製造装置を用いて塗膜を塗布することを特徴と
する塗布方法。9. A coating method, wherein a coating film is applied using the coating production apparatus according to at least one of the above items 5 to 8.
【００１７】１０．前記塗布液供給釜に、硬膜剤、粘度
調整剤、マット剤および界面活性剤の中から選ばれる少
なくとも一つの添加剤を含有しない塗布液を貯溜してお
り、前記塗布液供給釜より前記塗布液供給経路に塗布液
が送出される途中で、前記含有されない添加剤を前記塗
布液供給経路に供給して添加することを特徴とする上記
９に記載の塗布方法。10. The coating liquid supply tank stores a coating liquid that does not contain at least one additive selected from a hardening agent, a viscosity modifier, a matting agent and a surfactant, and the coating liquid is supplied from the coating liquid supply tank. 10. The coating method according to the above item 9, wherein the additive not contained is supplied to the coating liquid supply path and added while the coating liquid is being sent to the liquid supply path.
【００１８】１１．塗布液供給釜から少なくとも２つの
塗布液供給経路を通って、同時重層塗布装置に複数層の
塗布液を供給し、支持体上に塗布する方法において、前
記少なくとも２つの塗布液供給経路のうちの第１の経路
は前期支持体上で最下層となる塗布液を供給し、第２の
経路は前記最下層の隣接層となる塗布液を供給し、前記
第１の経路中で添加剤を供給し添加することを特徴とす
る塗布方法。11. In a method of supplying a plurality of layers of coating liquid to a simultaneous multilayer coating device from at least two coating liquid supply paths from a coating liquid supply tank and coating the coating liquid on a support, The first path supplies a coating liquid to be the lowermost layer on the support, the second path supplies a coating liquid to be a layer adjacent to the lowermost layer, and supplies an additive in the first path. Coating method characterized by adding and adding.
【００１９】１２．前記添加剤の添加により、せん断速
度１００００（ｌ／ｓｅｃ）のときの前記最下層の塗布
液粘度を低下させることを特徴とする上記１１に記載の
塗布方法。[12] 12. The coating method according to the above item 11, wherein the addition of the additive reduces the viscosity of the coating liquid in the lowermost layer at a shear rate of 10000 (l / sec).
【００２０】１３．前記添加剤を添加した最下層の塗布
液のせん断速度１００００（ｌ／ｓｅｃ）の時の粘度を
ηA、前記最下層の隣接層の塗布液のせん断速度１００
００（ｌ／ｓｅｃ）の時の粘度をηBとした時に、ηB／
ηA≧２に調整することを特徴とする上記１２に記載の
塗布方法。13. The viscosity at a shear rate of 10,000 (l / sec) of the coating liquid of the lowermost layer to which the additive is added is η A , and the shear rate of the coating liquid of the coating liquid of the adjacent layer of the lowermost layer is 100
When the viscosity at the time of 00 (l / sec) is η B , η B /
13. The coating method as described in 12 above, wherein η A ≧ 2 is adjusted.
【００２１】１４．前記添加剤を添加することにより最
下層の塗布液の動的表面張力値を４０ｍＮ／ｍ以下に
し、前記重層塗布装置がカーテン塗布装置であることを
特徴とする上記１１ないし１３のいずれか１つに記載の
塗布方法。14. Any one of the above items 11 to 13, wherein the addition of the additive makes the dynamic surface tension value of the lowermost coating solution 40 mN / m or less, and the multi-layer coating device is a curtain coating device. Coating method.
【００２２】１５．前記添加剤が塗布液の溶媒であるこ
とを特徴とする上記１２ないし１４のいずれか１つに記
載の塗布方法。15. 15. The coating method according to any one of the above items 12 to 14, wherein the additive is a solvent of a coating solution.
【００２３】１６．前記溶媒が多価アルコールを含有す
ることを特徴とする上記１５に記載の塗布方法。16. The coating method according to the above item 15, wherein the solvent contains a polyhydric alcohol.
【００２４】１７．前期支持体の塗布される表面の中心
線表面粗さ（Ｒａ）が０．２μｍ以上の場合、前記最下
層の塗布液流量が、前記最下層の隣接層の塗布液流量よ
りも少ないことを特徴とする上記１２ないし１６のいず
れか１つに記載の塗布方法。17. When the center line surface roughness (Ra) of the surface on which the support is coated is 0.2 μm or more, the flow rate of the coating liquid in the lowermost layer is smaller than the flow rate of the coating liquid in the adjacent layer of the lowermost layer. The coating method according to any one of the above items 12 to 16, wherein
【００２５】１８．前記最下層の塗布液流量をＱA、前
記最下層の隣接層の塗布液の量流をＱBとした時に、ＱB
／ＱA≧２となることを特徴とする上記１７に記載の塗
布方法。18. It said lowermost layer coating liquid flow rate Q A, when the amount flow of the coating solution of the lowermost adjacent layer was Q B, Q B
18. The coating method according to the above 17, wherein / Q A ≧ 2.
【００２６】以下に本発明を詳細に説明する。Hereinafter, the present invention will be described in detail.
【００２７】本発明の塗布液供給釜は、通常よく知られ
ているものであり、塗布液を調整または貯留出来る容器
である。この塗布液供給釜にて、複数の素材や添加剤を
混合し、塗布液または添加剤を入れる前の塗布液を調整
し、貯留することが出来る。The coating liquid supply tank of the present invention is a well-known one, and is a container capable of adjusting or storing the coating liquid. In this coating liquid supply tank, a plurality of materials and additives can be mixed, and the coating liquid or the coating liquid before adding the additives can be adjusted and stored.
【００２８】本発明の塗布液供給経路は、塗布液を塗布
液供給釜から塗布装置（コーター）まで通すものであれ
ば特に制限はないが、管状の送液管になっていることが
好ましい。The coating liquid supply path of the present invention is not particularly limited as long as the coating liquid is passed from the coating liquid supply tank to the coating device (coater), but it is preferably a tubular liquid supply pipe.
【００２９】本発明においては、一つの塗布液供給釜か
らの塗布液供給経路が複数あることが好ましく、その場
合、塗布液供給釜の一つの塗布液供給口からつながった
送液管が途中で分岐して複数の送液管に分かれてもよい
し、塗布液供給釜に複数の塗布液供給口が設けられ、そ
れぞれに送液管がつながっていてもよい。それぞれの送
液管がさらに分岐していてもよい。送液管が途中で分岐
する場合の分岐する場所は、塗布液供給釜から塗布装置
の間であればどこでも構わない。In the present invention, it is preferable that there are a plurality of coating liquid supply paths from one coating liquid supply tank. In this case, a liquid supply pipe connected from one coating liquid supply port of the coating liquid supply tank is provided in the middle. It may be branched and divided into a plurality of liquid feed pipes, or a plurality of coating liquid supply ports may be provided in the coating liquid supply tank, and the liquid feed pipes may be connected to each of the plurality of coating liquid supply ports. Each liquid feed pipe may be further branched. When the liquid supply pipe branches in the middle, the branching point may be anywhere between the coating liquid supply tank and the coating apparatus.
【００３０】塗布液供給釜から複数の塗布液供給経路が
設けられる場合は、それぞれ別の塗布装置に塗布液を供
給してもよいし、一つの重層塗布装置に複数の塗布液を
供給して、重層塗布を行うようにしてもよい。When a plurality of coating liquid supply paths are provided from the coating liquid supply tank, the coating liquid may be supplied to separate coating apparatuses, or a plurality of coating liquids may be supplied to one multilayer coating apparatus. Alternatively, multi-layer coating may be performed.
【００３１】本発明では送液管等、塗布液供給経路の途
中で、塗布液（この場合は添加剤を添加する前の母液）
に対し添加剤を供給して添加することが好ましい（以
下、インライン添加と称する）。塗布液供給経路の途中
とは、塗布液供給釜の塗布液供給口から塗布装置の液取
り入れ口までの間であればどこでもよい。当然ながら、
塗布液組成を一定に保つために、塗布液の流量と、添加
剤の流量が制御された送液管配管システムにて行うこと
が必要である。In the present invention, a coating liquid (in this case, a mother liquor before adding an additive) is provided in the middle of a coating liquid supply path such as a liquid feeding pipe.
It is preferable to supply and add an additive to the mixture (hereinafter referred to as in-line addition). The middle of the coating liquid supply path may be anywhere between the coating liquid supply port of the coating liquid supply tank and the liquid intake port of the coating apparatus. Of course,
In order to keep the composition of the coating liquid constant, it is necessary to perform the coating in a liquid feed pipe system in which the flow rate of the coating liquid and the flow rate of the additive are controlled.
【００３２】本発明において、インライン添加するのに
特に好ましい添加剤は、粘度調整剤、マット剤または界
面活性剤である。これら粘度調整剤、マット剤または界
面活性剤のインライン添加に加えて、更に硬膜剤をイン
ライン添加することも好ましい。インライン添加につい
ては、特開昭５１−３４７１３号にて、塗布液供給釜内
でのハロゲン化銀乳剤塗布液の停滞時間が長くなると、
写真性能が劣化する問題を解決するために、添加剤をイ
ンライン添加する発明が開示されているが、粘度調整
剤、マット剤または界面活性剤のインライン添加につい
ては具体的に記載がなく、とくに粘度調整剤、マット剤
または界面活性剤の３種類の添加剤において塗布液の発
泡を抑えることが可能であること、塗布液の分散性向上
の効果が顕著であることが今回初めて判明したことは驚
きであった。In the present invention, particularly preferred additives for in-line addition are viscosity modifiers, matting agents or surfactants. In addition to the in-line addition of these viscosity modifiers, matting agents or surfactants, it is also preferable to add in-line hardeners. Regarding in-line addition, JP-A-51-34713 discloses that when the stagnation time of a silver halide emulsion coating solution in a coating solution supply tank becomes longer,
In order to solve the problem of deterioration of photographic performance, an invention in which an additive is added in-line has been disclosed.However, there is no specific description about the in-line addition of a viscosity modifier, a matting agent or a surfactant. It is surprising for the first time that it has been found that foaming of the coating solution can be suppressed with three types of additives, such as a modifier, a matting agent, and a surfactant, and the effect of improving the dispersibility of the coating solution is remarkable. Met.
【００３３】本発明においては、複数の添加剤をインラ
イン添加することも好ましいが、このような場合、予め
複数の添加剤を混合してから、塗布液の流れる送液管に
合流させてもよいし、複数の添加剤をそれぞれ別々に塗
布液の流れる送液管に合流させてもよい。複数の添加剤
を予め混合する場合には、別の添加剤調整釜で複数の添
加剤の分散混合を行ってから送液管を通じて塗布液の流
れる送液管に合流させてもよいし、各添加剤の流れる複
数の送液管を合流させて混合し、さらに塗布液の流れる
送液管に合流させてもよい。In the present invention, it is preferable to add a plurality of additives in-line. In such a case, the plurality of additives may be mixed in advance and then combined with a liquid feed pipe through which a coating solution flows. Then, a plurality of additives may be separately joined to a liquid feed pipe through which a coating liquid flows. When a plurality of additives are preliminarily mixed, a plurality of additives may be dispersed and mixed in another additive adjusting kettle, and then may be joined to a liquid feed pipe through which a coating liquid flows through a liquid feed pipe. A plurality of liquid sending pipes through which the additive flows may be combined and mixed, and further combined with the liquid sending pipe through which the coating liquid flows.
【００３４】インライン添加を行う場所は、塗布液供給
経路のどこでも構わないが、塗布装置の直前で行うこと
が好ましい。インライン添加を行う地点の下流側には、
攪拌混合装置を設けることが好ましく、攪拌混合装置と
しては一般によく知られているスタチックミキサーが特
に好ましい。The in-line addition may be performed anywhere in the coating solution supply path, but is preferably performed immediately before the coating apparatus. Downstream of the point where in-line addition is performed,
It is preferable to provide a stirring and mixing device, and a particularly well-known static mixer is particularly preferable as the stirring and mixing device.
【００３５】本発明の塗布方法に用いられる塗布液は、
ハロゲン化銀写真用ゼラチン水溶液（ハロゲン化銀乳
剤）、合成高分子溶液、磁性塗料、揮発性溶媒を含有す
る溶液など特に制限はないが、特に効果が期待出来るの
は、添加物の種類が多く多層同時重層塗布を行うハロゲ
ン化銀乳剤が好ましい。The coating solution used in the coating method of the present invention comprises:
There are no particular restrictions on silver halide photographic gelatin aqueous solutions (silver halide emulsions), synthetic polymer solutions, magnetic paints, and solutions containing volatile solvents, but there are many types of additives that can be expected to be particularly effective. Silver halide emulsions in which simultaneous multilayer coating is performed are preferred.
【００３６】ハロゲン化銀乳剤と添加剤およびその調整
方法については、詳しくはリサーチ・ディスクロージャ
ー（Ｒｅｓｅｒｃｈ Ｄｉｓｃｌｏｓｕｒｅ）１７６
号、１７６４３，２２〜３１頁（１９７８年１２月）に
記載もしくは引用された文献に記載されている。The silver halide emulsion, the additive and the method of preparing the same are described in detail in Research Disclosure 176.
No. 17643, pages 22 to 31 (December 1978).
【００３７】ハロゲン化銀乳剤の添加剤の中で、本発明
の塗布方法においてインライン添加すると好ましいもの
としては、粘度調整剤、マット剤または界面活性剤であ
り、さらに硬膜剤のインライン添加を併用するとより好
ましい。Among the additives of the silver halide emulsion, those which are preferably added in-line in the coating method of the present invention are a viscosity modifier, a matting agent or a surfactant, and further combined with the in-line addition of a hardening agent. It is more preferable.
【００３８】粘度調整剤としては、上記リサーチ・ディ
スクロージャーに開示されているような通常知られてい
るものを用いることが出来るが、特に好ましくは以下の
ものである。As the viscosity modifier, those generally known as disclosed in the above-mentioned Research Disclosure can be used, and particularly preferred are the following.
【００３９】[0039]
【化１】 Embedded image
【００４０】マット剤としては、特に制限はないが、米
国特許第２，９９２，１０１号、同第２，７０１，２４
５号、同第４，１４２，８９４号、同第４，３９６，７
０６号に記載のようなポリメチルメタクリレートのホモ
ポリマー又はメチルメタクリレートとメタクリル酸との
ポリマー、デンプンなどの有機化合物、シリカ、二酸化
チタン、硫酸ストロンチウム、硫酸バリウム等の無機化
合物の微粒子を用いることができる。特に好ましくは、
シリカやメチルメタクリレートである。粒子サイズとし
ては、０．６〜１０μｍ、特に１〜５μｍであることが
好ましい。The matting agent is not particularly limited, but is described in US Pat. Nos. 2,992,101 and 2,701,24.
No. 5, No. 4,142,894, No. 4,396,7
No. 06, a homopolymer of polymethyl methacrylate or a polymer of methyl methacrylate and methacrylic acid, an organic compound such as starch, and fine particles of an inorganic compound such as silica, titanium dioxide, strontium sulfate, and barium sulfate can be used. . Particularly preferably,
Silica and methyl methacrylate. The particle size is preferably 0.6 to 10 μm, particularly preferably 1 to 5 μm.
【００４１】界面活性剤としては、通常知られているも
のを用いることが出来る。本発明に用いられる界面活性
剤の代表例を以下に示す。As the surfactant, those generally known can be used. Representative examples of the surfactant used in the present invention are shown below.
【００４２】（Ｓ−１）トリイソプロピルナフタレンス
ルホン酸ナトリウム （Ｓ−２）スルホ琥珀酸ジ（２−エチルヘキシル）ナト
リウム （Ｓ−３）スルホ琥珀酸ジ（２，２，３，３，４，４，
５，５−オクタフルオロペンチル）ナトリウム （Ｓ−４）ロート油 （Ｓ−５）Ｃ12Ｈ25ＯＳＯ3Ｎａ （Ｓ−６）Ｃ14Ｈ29ＯＳＯ3Ｎａ （Ｓ−７）Ｃ12Ｈ25ＣＯＮＨＣＨ2ＣＨ2ＯＳＯ3Ｎａ （Ｓ−８）Ｃ12Ｈ25ＳＯ3Ｎａ （Ｓ−９）Ｃ14Ｈ29ＳＯ3Ｎａ(S-1) Sodium triisopropylnaphthalene sulfonate (S-2) Sodium di (2-ethylhexyl) sulfosuccinate (S-3) Di (2,2,3,3,4,4) sulfosuccinate ,
5,5 octafluoropentyl) sodium (S-4) Turkey red oil (S-5) C 12 H 25 OSO 3 Na (S-6) C 14 H 29 OSO 3 Na (S-7) C 12 H 25 CONHCH 2 CH 2 OSO 3 Na (S-8) C 12 H 25 SO 3 Na (S-9) C 14 H 29 SO 3 Na
【００４３】[0043]
【化２】 Embedded image
【００４４】[0044]
【化３】 Embedded image
【００４５】[0045]
【化４】 Embedded image
【００４６】硬膜剤としては、通常知られているものを
用いることが出来るが、例えばクロム塩（クロム明礬、
酢酸クロム等）、アルデヒド類（ホルムアルデヒド、グ
リオキザール、グルタルアルデヒド等）、Ｎ−メチロー
ル化合物（ジメチロール尿素、メチロールジメチルヒダ
ントイン等）、ジオキサン誘導体（２，３−ジヒドロキ
シジオキサン等）、活性ビニル化合物（１，３，５−ト
リアクリロイル−ヘキサヒドロ−ｓ−トリアジン、ビス
（ビニルスルホニル）メチルエーテル、Ｎ，Ｎ′−メチ
レンビス−〔β−（ビニルスルホニル）プロピオンアミ
ド〕等）、活性ハロゲン化合物（２，４−ジクロロ−６
−ヒドロキシ−ｓ−トリアジン等）、ムコハロゲン酸類
（ムコクロル酸、フェノキシムコクロル酸等）イソオキ
サゾール類、ジアルデヒド澱粉、２−クロロ−６−ヒド
ロキシトリアジニル化ゼラチン、イソシアネート類、カ
ルボキシル基活性硬膜剤等を、単独又は組み合わせて用
いることが出来る。特に好ましいものとしては以下のも
のがある。As the hardening agent, those generally known can be used. For example, a chromium salt (chromium alum,
Chromium acetate, aldehydes (formaldehyde, glyoxal, glutaraldehyde, etc.), N-methylol compounds (dimethylol urea, methylol dimethylhydantoin, etc.), dioxane derivatives (2,3-dihydroxy dioxane, etc.), active vinyl compounds (1, 3 , 5-Triacryloyl-hexahydro-s-triazine, bis (vinylsulfonyl) methyl ether, N, N'-methylenebis- [β- (vinylsulfonyl) propionamide], etc., active halogen compounds (2,4-dichloro- 6
-Hydroxy-s-triazine, etc.), mucohalic acids (mucochloric acid, phenoxymucochloric acid, etc.) isoxazoles, dialdehyde starch, 2-chloro-6-hydroxytriazinylated gelatin, isocyanates, carboxyl group active hardener Film agents and the like can be used alone or in combination. Particularly preferred are the following.
【００４７】[0047]
【化５】 Embedded image
【００４８】本発明の別の形態は、一つの塗布液供給釜
から、少なくとも２つの塗布液供給経路を通って、一つ
の同時重層塗布装置に複数層塗布のための塗布液を供給
し塗布する方法において、塗布を行う支持体と接する最
下層となる塗布液に添加剤を添加することである。前記
最下層の塗布液に前記添加剤を添加することにより、該
最下層に隣接する層に比べて、せん断速度１００００
（ｌ／ｓｅｃ）のときの塗布液粘度を低くすることが好
ましい。According to another aspect of the present invention, a coating liquid for coating a plurality of layers is supplied from one coating liquid supply tank to one simultaneous multi-layer coating apparatus through at least two coating liquid supply paths. In the method, an additive is added to a coating solution which is a lowermost layer in contact with a support to be coated. By adding the additive to the coating solution of the lowermost layer, a shear rate of 10,000 is obtained as compared with the layer adjacent to the lowermost layer.
It is preferable to lower the viscosity of the coating solution at (l / sec).
【００４９】最下層の塗布液粘度を低くする場合には、
最下層の塗布液のせん断速度１００００（ｌ／ｓｅｃ）
のときの粘度をηA、該最下層に隣接する層のせん断速
度１００００（ｌ／ｓｅｃ）のときの塗布液粘度をηB
としたとき、ηB／ηA≧２となるように添加剤を調整す
ることがさらに好ましい。一方、最下層以外の塗布層の
塗布液粘度は、カーテン塗布の場合、低すぎるとヒール
現象を発生して塗布不可となるため、せん断速度１００
００（ｌ／ｓｅｃ）の時の粘度が、２０ｍＰａ・ｓｅｃ
以上であると好ましい。To lower the viscosity of the lowermost coating liquid,
Shear rate of coating liquid of lowermost layer 10000 (l / sec)
Viscosity eta A, a coating solution viscosity at a shear rate of 10000 (l / sec) of the layer adjacent to the outermost lower eta B when the
In this case, it is more preferable to adjust the additive so that η B / η A ≧ 2. On the other hand, in the case of curtain coating, if the coating liquid viscosity of the coating layer other than the lowermost layer is too low, a heel phenomenon occurs and coating becomes impossible.
The viscosity at the time of 00 (l / sec) is 20 mPa · sec.
It is preferable that it is above.
【００５０】本発明において一つの塗布液供給釜から２
つの塗布液供給経路を通って重層塗布装置に供給し、途
中一方の最下層となる塗布液に添加剤を加える塗布方法
においては、カーテン塗布が好ましい。このカーテン塗
布を行う場合には、塗布する支持体と接する最下層の塗
布液の動的表面張力を、添加剤を加えることにより低く
することが好ましい。好ましくは４０ｍＮ／ｍ以下とす
ることである。In the present invention, two coating liquid supply tanks
In a coating method in which the coating liquid is supplied to the multi-layer coating apparatus through two coating liquid supply paths and an additive is added to the coating liquid to be one of the lowermost layers, curtain coating is preferable. When the curtain coating is performed, it is preferable to lower the dynamic surface tension of the lowermost coating liquid in contact with the support to be coated by adding an additive. Preferably, it is 40 mN / m or less.
【００５１】動的表面張力σの測定は、Ｊ．Ｆｌｕｉｄ
Ｍｅｃｈ，（１９８１）、ｖｏ．１．１１２，ｐｐ４
４３〜４５８に記載の方法により可能である。The measurement of the dynamic surface tension σ is described in J. Fluid
Mech, (1981), vo. 1.112, pp4
43 to 458.
【００５２】最下層塗布液にインライン添加する添加剤
は、粘度を低下させるまたは動的表面張力を下げるもの
なら特に制限はないが、界面活性剤や、塗布液の溶媒で
あることが好ましい。The additive to be added in-line to the lowermost layer coating solution is not particularly limited as long as it lowers the viscosity or lowers the dynamic surface tension, but is preferably a surfactant or a solvent for the coating solution.
【００５３】界面活性剤については上記本発明に好まし
く用いられる添加剤として述べたものと同様である。The surfactants are the same as those described as the additives preferably used in the present invention.
【００５４】塗布液の溶媒を添加する場合において、ハ
ロゲン化銀乳剤のようなゼラチンを結着剤とする塗布液
の溶媒としては、ゼラチンとの水素結合を進行させ、ゼ
ラチンのゲル化を促進する多価アルコールであることが
好ましい。低粘度の塗布液は、塗布直後の塗膜が脆弱で
あるため、塗膜が空気の吹付により波打ったり、ゲル化
するまでのレベリング現象により膜厚ムラが発生する不
具合が生じるためである。多価アルコールとしては、以
下のものが代表的なものである。When a solvent for the coating solution is added, the solvent for the coating solution containing gelatin as a binder, such as a silver halide emulsion, promotes hydrogen bonding with gelatin and promotes gelatinization of gelatin. It is preferably a polyhydric alcohol. This is because a coating film having a low viscosity has a fragile coating film immediately after application, and causes a problem in that the coating film is wavy by air blowing or uneven in film thickness due to a leveling phenomenon until gelling. The following are typical polyhydric alcohols.
【００５５】（Ａ−１）エリスリトール （Ａ−２）ソルビトール （Ａ−３）マンニトール （Ａ−４）２，３，３，４−テトラメチル−２，４−ペ
ンタジオール （Ａ−５）２，２−ジメチル−１，３−プロパンジオー
ル （Ａ−６）２，２−ジメチル−１，３−ペンタンジオー
ル （Ａ−７）２，２，４−トリメチル−１，３−ペンタン
ジオール （Ａ−８）２，５−ヘキサンジオール （Ａ−９）２，５−ジメチル−２，５−ヘキサンジオー
ル （Ａ−１０）１，６−ヘキサンジオール （Ａ−１１）１，８−オクタンジオール （Ａ−１２）１，９−ノナンジオール （Ａ−１３）１，１０−デカンジオール （Ａ−１４）１，１１−ウンデカンジオール （Ａ−１５）１，１２−ドデカンジオール （Ａ−１６）１，１３−トリデカンジオール （Ａ−１７）１，１４−テトラデカンジオール （Ａ−１８）１，１２−オクタデカンジオール （Ａ−１９）１，１８−オクタデカンジオール （Ａ−２０）シス−２，５−ジメチル−３−ヘキセン−
２，５−ジオール （Ａ−２１）トランス−２，５−ジメチル−３−ヘキセ
ン−２，５−ジオール （Ａ−２２）２−ブチン−１，４−ジオール （Ａ−２３）２，５−ジメチル−３−ヘキシン−２，５
−ジオール （Ａ−２４）２，４−ヘキサジイソ−１，６−ジオール （Ａ−２５）２，６−オクタジイソ−１，８−ジオール （Ａ−２６）２−メチル−２，３，４−ブタトリオール （Ａ−２７）２，３，４−ヘキサントリオール （Ａ−２８）２，４−ジメチル−２，３，４−ペンタン
トリオール （Ａ−２９）２，４−ジメチル−２，３，４−ヘキサン
トリオール （Ａ−３０）ペンタンメチルグリセリン （Ａ−３１）２−メチル−２−オキシメチル−１，３−
プロパンジオール （Ａ−３２）２−イソプロピル−２−オキシメチル−
１，３−プロパンジオール （Ａ−３３）２，２−ジヒドロキシメチル−１−ブタノ
ール （Ａ−３４）Ｌ−トレイット （Ａ−３５）ｒａｃ−トレイット （Ａ−３６）ペンタンエリスリトール （Ａ−３７）１，２，３，４−ペンタンテトロール （Ａ−３８）２，３，４，５−ヘキサンテトロール （Ａ−３９）２，５−ジメチル−２，３，４，５−ヘキ
サンテトロール （Ａ−４０）１，２，５，６−ヘキサンテトロール （Ａ−４１）１，３，４，５−ヘキサンテトロール （Ａ−４２）１，６−（エリトロ−３，４）−ヘキサン
テトロール （Ａ−４３）３−ヘキセン−１，２，５，６−テトロー
ル （Ａ−４４）３−ヘキシン−１，２，５，６−テトロー
ル （Ａ−４５）アドニトール （Ａ−４６）Ｄ−アラビトール （Ａ−４７）Ｌ−アラビトール （Ａ−４８）ｒａｃ−アラビトール （Ａ−４９）キシリトール （Ａ−５０）ズルシトール 最下層に、該最下層と隣接する層より低い粘度の層を設
ける場合、該最下層の塗布液と該最下層と隣接する層の
塗布液は塗布液供給釜を共有したものとし、この塗布液
供給釜からの塗布液供給経路を複数設け、最下層用の塗
布液供給経路に添加剤をインライン添加し、重層塗布装
置に供給することで、塗布液供給釜の増設をしなくて済
む。また該最下層の塗布液流量は、該最下層の隣接層の
塗布液流量より少なくすることが好ましい。該最下層の
塗布液流量をＱA（ｃｃ／ｃｍ・ｓｅｃ）、該最下層の
隣接層の塗布液流量をＱB（ｃｃ／ｃｍ・ｓｅｃ）とし
た時にＱB／ＱA≧２となるように調整するとさらに好ま
しい。(A-1) Erythritol (A-2) Sorbitol (A-3) Mannitol (A-4) 2,3,3,4-tetramethyl-2,4-pentadiol (A-5) 2 2-dimethyl-1,3-propanediol (A-6) 2,2-dimethyl-1,3-pentanediol (A-7) 2,2,4-trimethyl-1,3-pentanediol (A-8 ) 2,5-hexanediol (A-9) 2,5-dimethyl-2,5-hexanediol (A-10) 1,6-hexanediol (A-11) 1,8-octanediol (A-12) ) 1,9-nonanediol (A-13) 1,10-decanediol (A-14) 1,11-undecanediol (A-15) 1,12-dodecanediol (A-16) 1,13-tride Candiol (A- 17) 1,14-tetradecanediol (A-18) 1,12-octadecanediol (A-19) 1,18-octadecanediol (A-20) cis-2,5-dimethyl-3-hexene-
2,5-diol (A-21) trans-2,5-dimethyl-3-hexene-2,5-diol (A-22) 2-butyne-1,4-diol (A-23) 2,5- Dimethyl-3-hexyne-2,5
-Diol (A-24) 2,4-hexadiiso-1,6-diol (A-25) 2,6-octadiiso-1,8-diol (A-26) 2-methyl-2,3,4-buta Triol (A-27) 2,3,4-hexanetriol (A-28) 2,4-dimethyl-2,3,4-pentanetriol (A-29) 2,4-dimethyl-2,3,4- Hexanetriol (A-30) pentanemethylglycerin (A-31) 2-methyl-2-oxymethyl-1,3-
Propanediol (A-32) 2-isopropyl-2-oxymethyl-
1,3-propanediol (A-33) 2,2-dihydroxymethyl-1-butanol (A-34) L-trait (A-35) rac-trait (A-36) pentaneerythritol (A-37) 1 , 2,3,4-pentane tetrol (A-38) 2,3,4,5-hexane tetrol (A-39) 2,5-dimethyl-2,3,4,5-hexane tetrol (A -40) 1,2,5,6-hexane tetrol (A-41) 1,3,4,5-hexane tetrol (A-42) 1,6- (erythro-3,4) -hexane tetrol (A-43) 3-hexene-1,2,5,6-tetrol (A-44) 3-hexyne-1,2,5,6-tetrol (A-45) adonitol (A-46) D-arabitol (A-47) L-arabito (A-48) rac-arabitol (A-49) xylitol (A-50) dulcitol When the lowermost layer is provided with a layer having a lower viscosity than the layer adjacent to the lowermost layer, the coating solution for the lowermost layer and the The coating liquid of the lower layer and the adjacent layer share the coating liquid supply kettle, a plurality of coating liquid supply paths from the coating liquid supply kettle are provided, and an additive is added in-line to the coating liquid supply path for the lowermost layer, By supplying the coating liquid to the multi-layer coating device, it is not necessary to add a coating liquid supply tank. It is preferable that the flow rate of the coating liquid in the lowermost layer is smaller than the flow rate of the coating liquid in the layer adjacent to the lowermost layer. The coating solution flow rate of outermost lower Q A (cc / cm · sec ), a Q B / Q A ≧ 2 when the coating liquid flow outermost lower adjacent layers was Q B (cc / cm · sec ) It is more preferable to adjust as follows.
【００５６】本発明に用いられる塗布装置は、通常知ら
れているスライドホッパーコーター、カーテンコータ
ー、押し出しコーター等特に制限はない。本発明の一つ
の形態においては、重層コーター、特に重層塗布用のカ
ーテンコーターやスライドホッパー型ビードコーターの
場合に本発明の効果がより期待出来る。The coating apparatus used in the present invention is not particularly limited, such as a commonly known slide hopper coater, curtain coater, extrusion coater and the like. In one embodiment of the present invention, the effect of the present invention can be more expected in the case of a multilayer coater, particularly a curtain coater or a slide hopper type bead coater for multilayer coating.
【００５７】塗布液は塗布装置を用いて支持体上に塗布
していくが、支持体は通常用いられるものであれば何で
もよく、トリアセチルセルロース（ＴＡＣ）、ポリエチ
レンテレフタレート（ＰＥＴ）、ポリエチレンナフタレ
ート（ＰＥＮ）、アルミニウムや鉄等の金属、紙等が挙
げられる。支持体の塗布表面の中心線表面粗さＲａ（Ｊ
ＩＳＢ０６０１）が０．２μｍ以上の場合に、本発明の
効果が特に奏される。Ｒａが０．２μｍ以上の場合は、
最下層の塗布液流量が、前期最下層の隣接層の塗布液流
量よりも少ないことが好ましい。The coating solution is applied onto the support using a coating apparatus. The support may be any one which is usually used, such as triacetyl cellulose (TAC), polyethylene terephthalate (PET), or polyethylene naphthalate. (PEN), metals such as aluminum and iron, and paper. The center line surface roughness Ra (J
When ISB0601) is 0.2 μm or more, the effect of the present invention is particularly exhibited. When Ra is 0.2 μm or more,
It is preferable that the flow rate of the lowermost layer is lower than the flow rate of the lowermost layer.
【００５８】塗布速度は、支持体の搬送速度のことであ
り、１００〜８００ｍ／ｍｉｎの高速塗布において本発
明の効果はより発揮される。The coating speed refers to the speed at which the support is transported, and the effect of the present invention is more exhibited in high-speed coating at 100 to 800 m / min.
【００５９】[0059]
【発明の実施の形態】図１は重層塗布用のカーテンコー
ターの断面図である。バックアップローラ１によって搬
送方向が反転される過程の支持体２に、カーテン塗布を
行う。支持体２は図示しない搬送手段によって搬送され
る。バックアップローラ１は、支持体２に接触するもの
であっても、接触しないものであってもよい。支持体２
に接触しないバックアップローラ１である場合は、ロー
ラ表面に設けられた多数の小孔からエア等の流体を吹き
出して、支持体と直接接触せずに支持する、エアバック
ロールを用いることが出来る。塗布手段３は少なくとも
スライド面４と、塗布液供給手段の供給口であるスリッ
ト５と、エッジガイド６を備えている。塗布液供給手段
の供給口は、スライド面４上に設けられたスリット５で
あり、塗布液は該スリット５から幅手方向において均一
に供給され、スライド面４を流下することにより、塗布
液の薄膜が形成される。この薄膜はスライド面４を流下
し、スライド面４下端部分の両端に設けられた一対のエ
ッジガイド６の間を伝搬して流下し、搬送される支持体
に衝突することにより塗布される。スリット５は必要に
応じて所定数設けることが可能で、複数のスリット５か
ら塗布液を流下させることにより、薄膜状の塗布液を積
層させることが出来る。FIG. 1 is a sectional view of a curtain coater for multilayer coating. Curtain coating is performed on the support 2 in the process of being reversed in the transport direction by the backup roller 1. The support 2 is transported by transport means (not shown). The backup roller 1 may or may not contact the support 2. Support 2
In the case of the backup roller 1 which does not come into contact with the roller, an air back roll which blows out fluid such as air from a number of small holes provided on the roller surface and supports it without directly contacting the support can be used. The application unit 3 includes at least a slide surface 4, a slit 5 serving as a supply port of the application liquid supply unit, and an edge guide 6. The supply port of the coating liquid supply means is a slit 5 provided on the slide surface 4, and the coating liquid is uniformly supplied in the width direction from the slit 5, and flows down the slide surface 4, thereby supplying the coating liquid. A thin film is formed. The thin film flows down the slide surface 4, propagates and flows between a pair of edge guides 6 provided at both ends of the lower end of the slide surface 4, and is applied by colliding with a transported support. A predetermined number of slits 5 can be provided as needed, and a coating liquid in the form of a thin film can be laminated by flowing the coating liquid from a plurality of slits 5.
【００６０】図２は、本発明の塗布液供給経路に、粘度
調整剤、マット剤または界面活性剤の中から選ばれる少
なくとも一つの添加剤を供給して添加する実施の形態を
説明するための概念図である。図中、７は塗布液供給釜
で、塗布液を攪拌するための攪拌子８を装備している。
塗布液供給釜７の下端には塗布液供給口９を有してお
り、送液管１０につながっている。送液管１０を通って
塗布液供給釜７から塗布液が塗布装置方向に送液され
る。送液管１０の途中で、添加剤供給装置１１から供給
される添加剤が送液管１２を通って、送液管１０に供
給、添加され、下流にあるスタチックミキサー１３で攪
拌混合される。さらに下流には流量計１４が取り付けら
れ、図示されない流量制御手段により流量が制御される
ようになっている。スタチックミキサー、流量計は以下
に説明する図面には特に図示しないが、適宜必要な場所
に設けた方が好ましい。スタチックミキサーは塗布液と
添加剤を合流させた下流に設けるのが好ましい。流量計
は塗布液と添加剤の混合比を一定に保つために、塗布液
を送液する送液管と添加剤を送液する送液管が合流する
前に設けたり、塗布装置に塗布液を送り込む量を一定に
保ち、塗布を均一に行うため、塗布装置に流れ込む直前
に塗布液毎に設けるのが好ましい。FIG. 2 is a view for explaining an embodiment in which at least one additive selected from a viscosity modifier, a matting agent and a surfactant is supplied and added to the coating liquid supply path of the present invention. It is a conceptual diagram. In the drawing, reference numeral 7 denotes a coating liquid supply tank, which is equipped with a stirrer 8 for stirring the coating liquid.
A coating liquid supply port 9 is provided at a lower end of the coating liquid supply tank 7, and is connected to a liquid feed pipe 10. The coating liquid is sent from the coating liquid supply tank 7 toward the coating apparatus through the liquid sending pipe 10. In the middle of the liquid feed pipe 10, the additive supplied from the additive supply device 11 is supplied to the liquid feed pipe 10 through the liquid feed pipe 12, added to the liquid feed pipe 10, and stirred and mixed by the static mixer 13 located downstream. . Further downstream, a flow meter 14 is attached, and the flow rate is controlled by flow rate control means (not shown). The static mixer and the flow meter are not particularly shown in the drawings described below, but are preferably provided at necessary places as appropriate. It is preferable that the static mixer is provided at the downstream where the coating liquid and the additive are combined. In order to maintain a constant mixing ratio between the coating liquid and the additive, the flow meter is provided before the liquid feeding pipe for feeding the coating liquid and the liquid feeding pipe for feeding the additive are combined, or the flow meter is provided in the coating apparatus. In order to keep the feeding amount constant and to perform the coating uniformly, it is preferable to provide each coating liquid immediately before flowing into the coating apparatus.
【００６１】図３は、本発明の複数の添加剤を塗布液供
給経路に供給、添加する場合の一形態を表した概念図で
ある。添加剤供給装置１１および１１′から送出された
添加剤は予め混合された状態で送液管１２を通り、送液
管１０と合流して添加されることになる。FIG. 3 is a conceptual diagram showing an embodiment in which a plurality of additives of the present invention are supplied and added to a coating liquid supply path. The additives sent from the additive supply devices 11 and 11 ′ pass through the liquid feed pipe 12 in a state of being mixed in advance, and are added to the liquid feed pipe 10 while being merged.
【００６２】図４は、本発明の複数の添加剤を塗布液供
給経路に供給、添加する場合の別の形態を表した概念図
である。添加剤供給装置１１および１１′からはそれぞ
れ送液管１２および１２′がつながっており、別々に送
液管１０に合流するようになっている。FIG. 4 is a conceptual diagram showing another embodiment in which a plurality of additives of the present invention are supplied and added to a coating liquid supply path. Liquid feed pipes 12 and 12 ′ are connected to the additive feeders 11 and 11 ′, respectively, so that they join the liquid feed pipe 10 separately.
【００６３】図５は、本発明の複数の添加剤を塗布液供
給経路に供給、添加する場合の別の形態を表した概念図
である。塗布液供給釜７からは一つの送液管１５がつな
がっており、途中で２つの送液管１６および１７に分岐
する。FIG. 5 is a conceptual diagram showing another embodiment in which a plurality of additives of the present invention are supplied and added to a coating liquid supply path. One liquid feed pipe 15 is connected from the application liquid supply tank 7, and branches into two liquid feed pipes 16 and 17 on the way.
【００６４】図６は、本発明の塗布液供給釜からの塗布
液供給経路が複数ある場合の別の形態を表した概念図で
ある。２つの送液管１６および１７が直接塗布液供給釜
７につながっているタイプである。FIG. 6 is a conceptual diagram showing another embodiment in which there are a plurality of coating liquid supply paths from the coating liquid supply tank of the present invention. This is a type in which two liquid supply pipes 16 and 17 are directly connected to the coating liquid supply tank 7.
【００６５】図５，６では塗布液供給経路が２つの場合
のみ表したが、当然２以上の塗布液供給経路であっても
よい。好ましくは２〜４の塗布液供給経路を有すること
である。この複数の塗布液供給経路は、１つの重層塗布
装置につながっていてもよいし、複数の塗布装置につな
がっていてもよい。たとえば支持体の両面に同じ塗布層
を形成するＸ線用ハロゲン化銀写真感光材料などにおい
ては、この形態を使用することにより塗布液供給釜の数
を減らすことが出来るだけでなく、両面の塗布液組成を
均一に保つ効果が得られる。Although FIGS. 5 and 6 show only two coating liquid supply paths, two or more coating liquid supply paths may be used. It is preferable to have 2 to 4 application liquid supply paths. The plurality of application liquid supply paths may be connected to one multi-layer coating device, or may be connected to a plurality of coating devices. For example, in the case of a silver halide photographic light-sensitive material for X-rays in which the same coating layer is formed on both surfaces of a support, use of this form not only can reduce the number of coating liquid supply tanks, but also can reduce The effect of keeping the liquid composition uniform can be obtained.
【００６６】図７は、本発明の一つの塗布液供給釜から
少なくとも２つの塗布液供給経路が出ていて、そのうち
１つの塗布液供給経路は最下層の塗布液を、もう一つの
塗布液供給経路は最下層の隣接層の塗布液を通し、重層
塗布装置に供給する場合において、最下層の塗布液に添
加剤を添加する形態を表した概念図である。塗布液供給
釜７からは、送液管１５を通って塗布液が送出される。
送液管１５は途中で送液管１６（最下層の隣接層用塗布
液）および１７（最下層用塗布液）に分岐し、重層塗布
装置１８につながっている。送液管１５は途中、添加剤
供給手段１１から送液管１２を通って添加剤が添加され
るように配管されている。この添加剤は塗布液の粘度を
下げるようなものや、塗膜がゼラチンの場合で濃度が低
いような場合にはゲル化を促進し、塗膜を安定化させる
多価アルコール等が好ましい。FIG. 7 shows that at least two coating liquid supply paths are provided from one coating liquid supply tank according to the present invention, and one of the coating liquid supply paths supplies the lowermost coating liquid to the other coating liquid supply path. The path is a conceptual diagram showing a mode in which an additive is added to the lowermost layer coating liquid when the coating liquid of the lowermost layer is passed through and supplied to the multilayer coating apparatus. The coating liquid is sent from the coating liquid supply tank 7 through a liquid feed pipe 15.
The liquid feed pipe 15 branches into liquid feed pipes 16 (coating liquid for the lowermost layer adjacent layer) and 17 (coating liquid for the lowermost layer) on the way, and is connected to the multilayer coating device 18. The liquid feed pipe 15 is provided on the way so that the additive is added from the additive supply means 11 through the liquid feed pipe 12. The additive is preferably one that lowers the viscosity of the coating solution or polyhydric alcohol that promotes gelation and stabilizes the coating when the coating is gelatin and the concentration is low.
【００６７】図８は、本発明の一つの塗布液供給釜から
少なくとも２つの塗布液供給経路が出ていて、それぞれ
別の塗布装置につながっている形態を表した概念図であ
る。塗布液供給釜７から送液管１５を通って塗布液が送
出される。送液管１５は途中で送液管１６および１７に
分岐し、それぞれ別の塗布装置１９および１９′につな
がっている。送液管１７には、途中で添加剤供給手段１
１から送液管１２を通って供給される添加剤が添加され
るように配管されている。FIG. 8 is a conceptual diagram showing a form in which at least two coating liquid supply paths extend from one coating liquid supply tank of the present invention and are connected to different coating apparatuses. The coating liquid is sent from the coating liquid supply tank 7 through the liquid feed pipe 15. The liquid feed pipe 15 branches into liquid feed pipes 16 and 17 on the way, and is connected to separate coating devices 19 and 19 ', respectively. The liquid supply pipe 17 is provided with the additive supply means 1 on the way.
It is arranged so that the additive supplied from 1 through the liquid feed pipe 12 is added.
【００６８】図９は、スライドホッパー型ビード塗布装
置の主要部、および、減圧室を断面で示した塗布装置概
略図である。図中、２０はバックアップローラで、モー
タ等の駆動源を含む適宜の動力系に接続され、矢印方向
に回転されて、支持体２１の走行速度を精度よく保つべ
く機能する。FIG. 9 is a schematic view of a main part of a slide hopper type bead coating apparatus and a depressurizing chamber in a sectional view. In the figure, reference numeral 20 denotes a backup roller which is connected to an appropriate power system including a drive source such as a motor and is rotated in the direction of the arrow to function to maintain the traveling speed of the support 21 with high accuracy.
【００６９】図９の形態においては重層塗布ができる構
成を有するが、この重層の数は適宜決定できる。２３
（上層用）および２４（下層用）は塗布液を送りだすた
めの塗布液の送液管、２５はスライド面（参照記号な
し）の直前に設けた、塗布液の供給路であるスリット、
２６は前記支持体２１に近接する前記スライド面の終端
部（リップ部）、２７は塗布液層、２８は前記リップ部
に形成されるビードを示す。この種構成は良く知られる
所である。２２は前記ビードの形状を安定化すべく機能
する減圧室である。前記減圧室は特に一体的である必要
はない。Although the embodiment shown in FIG. 9 has a configuration in which multiple layers can be coated, the number of multiple layers can be determined as appropriate. 23
(For the upper layer) and 24 (for the lower layer) are the feeding pipes for the coating liquid for feeding the coating liquid, 25 is a slit provided immediately before the slide surface (no reference symbol) and is a supply path for the coating liquid,
Reference numeral 26 denotes an end portion (lip portion) of the slide surface close to the support 21, reference numeral 27 denotes a coating liquid layer, and reference numeral 28 denotes a bead formed on the lip portion. This type of configuration is well known. Reference numeral 22 denotes a decompression chamber that functions to stabilize the shape of the bead. The decompression chamber does not need to be particularly integrated.
【００７０】[0070]
【実施例】以下に実施例を掲げるが、本発明はこれに限
定されない。The following examples are given, but the present invention is not limited to these examples.
【００７１】（実施例１）下記の上層塗布液と下層塗布
液を、２つの塗布液供給釜にてそれぞれ調整し、下記条
件にて、図９のスライドホッパー型ビード塗布装置を用
いて比較の塗布Ｎｏ．１を行った。それぞれの塗布液供
給釜からは１本の送液管が出ており、塗布装置の上層用
塗布液供給口と下層用塗布液供給口にそれぞれ接続し
た。Example 1 The following upper layer coating solution and lower layer coating solution were respectively adjusted in two coating solution supply tanks, and were compared under the following conditions using a slide hopper type bead coating apparatus shown in FIG. Application No. 1 was done. One liquid feed pipe came out of each coating liquid supply tank, and was connected to the upper layer coating liquid supply port and the lower layer coating liquid supply port of the coating apparatus.
【００７２】下層塗布液：所定の添加剤、ゼラチンを含
むハロゲン化銀乳剤で、３５℃において２０ｃｐの粘度
を有し、ｗｅｔ膜厚は４０μｍである。Lower layer coating solution: a silver halide emulsion containing a predetermined additive and gelatin, having a viscosity of 20 cp at 35 ° C. and a wet film thickness of 40 μm.
【００７３】表面張力６０ｄｙｎ／ｃｍ 上層塗布液：マット剤を含む所定の添加剤、ゼラチン、
界面活性剤を含む溶液で、３５℃において１０ｃｐの粘
度を有し、ｗｅｔ膜厚は２０μｍである。Surface tension: 60 dyn / cm Upper layer coating solution: predetermined additives including a matting agent, gelatin,
A solution containing a surfactant, having a viscosity of 10 cp at 35 ° C. and a wet film thickness of 20 μm.
【００７４】表面張力３０ｄｙｎ／ｃｍ 支持体 ：下引き済ポリエチレンテレフタレートフィ
ルム。Surface tension: 30 dyn / cm Support: Subbed polyethylene terephthalate film.
【００７５】減圧度 ：２０ｍｍＡｑ ビードギャップ：１００μｍ 塗布速度 ：１２０ｍ／ｍｉｎ 上記の要領で塗布した試料の３０ｍ2当たりに発生した
マット剤凝集体によるスポット故障の数は１２個であっ
た。Decompression degree: 20 mmAq Bead gap: 100 μm Coating speed: 120 m / min The number of spot failures due to the matting agent aggregates generated per 30 m 2 of the sample applied in the manner described above was 12.
【００７６】次に、上層塗布液供給ラインのみ図２に示
したものに変更し、上層塗布液中のマット剤のみ添加剤
供給装置１１からの添加にした以外は塗布Ｎｏ．１と同
様にして、本発明の塗布Ｎｏ．２を行ったところ、塗布
試料３０ｍ2当たりのスポット故障はゼロであった。上
層用塗布液のマット剤インライン添加により、分散性が
顕著に向上したことがわかる。Next, only the upper layer coating solution supply line was changed to that shown in FIG. 2, and only the matting agent in the upper layer coating solution was added from the additive supply device 11 except for the coating number. In the same manner as in Application No. 1 of the present invention, As a result, spot failure per 30 m 2 of the coated sample was zero. It can be seen that the in-line addition of the matting agent to the upper layer coating solution significantly improved the dispersibility.
【００７７】（実施例２）図２の塗布液供給ラインを２
つ用意し、２つの塗布液供給釜から界面活性剤を除いた
上層塗布液と下層塗布液をそれぞれ流下し、２つの添加
剤供給装置１１からは界面活性剤を供給して、上層塗布
液と下層塗布液それぞれにインライン添加する以外は塗
布Ｎｏ．１と同様にして、塗布Ｎｏ．３を行った。(Embodiment 2) The coating liquid supply line of FIG.
The upper coating liquid and the lower coating liquid from which the surfactant has been removed from the two coating liquid supply kettles respectively flow down, and the surfactant is supplied from the two additive supply devices 11, and the upper coating liquid and Coating No. except that it was added in-line to each lower layer coating liquid. In the same manner as in Application No. 1, 3 was performed.
【００７８】塗布Ｎｏ．１では塗布試料３０ｍ2当たり
の泡筋故障が４だったのに対し、塗布Ｎｏ．３ではゼロ
であった。界面活性剤のインライン添加により塗布液の
発泡が抑えられ、泡筋故障が改善したことがわかる。Application No. In the case of coating No. 1, the number of foam streak failures per 30 m 2 of the coating sample was 4, whereas in the case of coating No. At 3 it was zero. It can be seen that foaming of the coating solution was suppressed by in-line addition of the surfactant, and the foam streak failure was improved.
【００７９】（実施例３）塗布Ｎｏ．３の活性剤インラ
イン添加に代えて、粘度調整剤をそれぞれの添加剤供給
装置１１から供給する以外は同様にして、塗布Ｎｏ．４
を行った。(Example 3) In the same manner as in Application No. 3 except that the viscosity modifier is supplied from each additive supply device 11 instead of the in-line addition of the activator of No. 3, 4
Was done.
【００８０】塗布Ｎｏ．１では塗布試料３０ｍ2あたり
の粘度偏在による塗布ムラが製品品質を損なうほどはっ
きりわかる程度に悪かったのに対し、塗布Ｎｏ．４では
ほとんど塗布ムラはなく、十分な品質の製品を得ること
が出来た。粘度調整剤の塗布液へのインライン添加によ
り、均一な分散が可能となったことがわかる。Application No. In the case of coating No. 1, the coating unevenness due to uneven distribution of the viscosity per 30 m 2 of the coating sample was so bad that it could be clearly recognized so as to impair the product quality. In No. 4, there was almost no coating unevenness, and a product of sufficient quality could be obtained. It can be seen that uniform dispersion became possible by in-line addition of the viscosity modifier to the coating solution.
【００８１】（実施例４） 〈条件〉図１に示すスライドタイプの重層カーテンコ
ータおよび図９に示すスライドタイプのビードコータを
用い下記表１の条件で塗布を行った。塗布液はそれぞれ
粘度調整剤を加えることにより、下記表２のように塗布
液のせん断粘度を変化させた。尚、第１塗布層が支持体
に接する最下層であり、塗布液を供給するスリットの数
は、塗布層数に応じて増減させた。その他の塗布条件は
以下の通り。(Example 4) <Conditions> Using a slide type multilayer curtain coater shown in FIG. 1 and a slide type bead coater shown in FIG. 9, coating was performed under the conditions shown in Table 1 below. The shear viscosity of the coating liquid was changed as shown in Table 2 below by adding a viscosity modifier to each of the coating liquids. Note that the first coating layer was the lowermost layer in contact with the support, and the number of slits for supplying the coating liquid was increased or decreased according to the number of coating layers. Other application conditions are as follows.
【００８２】[0082]
【表１】 [Table 1]
【００８３】[0083]
【表２】 [Table 2]
【００８４】表２の条件のままでは、スライドビード塗
布であると、ビードと呼ばれる塗布液の支持体接液部分
が破壊し、塗布不可能であった。また、カーテン塗布方
法ではカーテン幕のエッジガイドとの接液部において、
空気同伴を伴うヒール現象を発生してしまい塗布出来な
かった。Under the conditions of Table 2, in the case of the slide bead coating, the portion of the coating liquid called the bead, which was in contact with the support, was broken, and coating was impossible. In the curtain coating method, at the liquid contact portion with the edge guide of the curtain curtain,
A heel phenomenon accompanied by air was generated and coating was not possible.
【００８５】〈条件〉塗布液調整釜からコータまでの
送液途中で、第１塗布液を２つに分岐し、一方に温水を
加えて、支持体上に最下層の第１層となるようにし、も
う一つの塗布液を第２層として、比較１の第２〜７層を
第３〜８層として、あとは上記条件と同様に塗布を行
った。<Conditions> In the course of feeding from the coating solution adjusting tank to the coater, the first coating solution is branched into two, and warm water is added to one of the two so that the lowermost layer becomes the first layer on the support. Then, another coating liquid was used as the second layer, and the second to seventh layers in Comparative Example 1 were used as the third to eighth layers, and the coating was performed under the same conditions as above.
【００８６】[0086]
【表３】 [Table 3]
【００８７】表３の条件ではスライドビード塗布、カー
テン塗布方法ともに塗布が可能となり、塗布故障の発生
なく製品として満足出来る品質がえられた。Under the conditions shown in Table 3, both the slide bead coating and the curtain coating method could be applied, and satisfactory quality as a product without coating failure was obtained.
【００８８】また、第１層塗布液のせん断速度１０００
０ｓｅｃ-1の時の粘度ηAと第２層塗布液のせん断速度
１００００ｓｅｃ-1の時の粘度ηBを同様に下記表４の
ように変化させて塗布を行ったところ、ηB／ηA≧２の
場合に特に塗布性が向上することがわかった。Further, the shear rate of the first layer coating solution is 1000
The viscosity eta B at a shear rate 10000 sec -1 of the viscosity eta A second layer coating solution when 0 sec -1 are modified as shown in Table 4 in the same manner was subjected to coating, η B / η A It was found that the applicability was particularly improved when ≧ 2.
【００８９】[0089]
【表４】 [Table 4]
【００９０】〈条件〉条件の第１層の下に最下層と
なるように、３％ゼラチン水溶液の層を設け（条件第
１層とする）、条件の第１〜７層を条件の第２〜８
層として表５の条件でカーテン塗布を行った。<Condition> A layer of a 3% aqueous solution of gelatin is provided below the first layer under the condition so as to be the lowermost layer (hereinafter referred to as the first layer), and the first to seventh layers under the second condition. ~ 8
Curtain coating was performed as a layer under the conditions shown in Table 5.
【００９１】[0091]
【表５】 [Table 5]
【００９２】塗布は可能であったが、第１層と第２層の
間が乱れたと推測される塗布ムラが確認されたため、製
品として使用することが出来なかった。最下層にただ隣
接層より粘度の低い層を設けても、一つの塗布液供給釜
から分岐した塗布液でなく、組成が異なる塗布液である
場合には、塗布ムラが出来てしまうことがわかる。Although application was possible, application unevenness, which was presumed to be disturbed between the first layer and the second layer, was confirmed, and the product could not be used. Even if a lower layer is provided with a layer having a lower viscosity than that of the adjacent layer, coating unevenness occurs when the coating liquid is not a coating liquid branched from one coating liquid supply tank but has a different composition. .
【００９３】〈条件〉条件において、塗布液流量を
表６のように変化させ（第１層流量＞第２層流量）支持
体の表面粗度が大きい（Ｒａ＝０．３μｍ）ポリエチレ
ン被覆紙に代えて同様にカーテン塗布を行ったところ、
膜厚ムラ起因と予想される細かいピッチの塗布ムラが確
認された。製品品質としてはかろうじて合格であるが、
ボーダーラインすれすれのものであった。<Conditions> Under the conditions, the flow rate of the coating solution was changed as shown in Table 6 (the flow rate of the first layer> the flow rate of the second layer) for polyethylene-coated paper having a large surface roughness of the support (Ra = 0.3 μm). Instead, when curtain coating was performed in the same way,
Coating unevenness of fine pitch, which is expected to be caused by unevenness in film thickness, was confirmed. Although the product quality was barely acceptable,
The borderline was just over.
【００９４】[0094]
【表６】 [Table 6]
【００９５】〈条件〉条件と同様に支持体の表面粗
度はＲａ＝０．３μｍの表面粗度が大きいものとし、塗
布流量は条件に戻して（第１層流量＜第２層流量）カ
ーテン塗布を行ったところ、全く問題なく塗布が可能で
あった。このことから、支持体の表面粗度Ｒａが０．２
μｍの場合には、第１層の塗布液流量ＱAを、第２層の
塗布液流量ＱBよりも少なくすることが好ましいことが
わかる。さらにＱB／ＱA≧２の場合に特に塗布性が向上
することがわかった。<Conditions> Similar to the conditions, the surface roughness of the support was Ra = 0.3 μm, the surface roughness was large, and the coating flow rate was returned to the conditions (first layer flow rate <second layer flow rate). Upon application, application was possible without any problem. From this, the surface roughness Ra of the support was 0.2
In the case of μm, the coating solution flow rate Q A of the first layer, it can be seen that it is preferable to be less than the coating fluid flow rate Q B of the second layer. Particularly coatability was improved further when the Q B / Q A ≧ 2.
【００９６】〈条件〉添加剤として、ゼラチンと水素
結合を進行させるような多価アルコールであるエリスリ
トールを、ゼラチン料の１０ｗｔ％となるように、第１
層に添加して、それ以外は条件と同様にしてカーテン
塗布を行った。<Conditions> As an additive, erythritol, which is a polyhydric alcohol that promotes hydrogen bonding with gelatin, was added to the first gelatin so as to be 10 wt% of the gelatin material.
Curtain coating was performed in the same manner as in the conditions except for adding to the layer.
【００９７】条件よりさらに膜厚ムラの発生が微弱と
なり、製品品質が向上した。すなわち、塗布性を向上さ
せながら、製品品質の向上も達成することが出来た。[0097] The occurrence of film thickness unevenness became weaker than the condition, and the product quality was improved. That is, it was possible to improve the product quality while improving the applicability.
【００９８】添加する多価アルコールは、ゼラチンとの
水素結合を促進するものであればエリスリトールに限ら
ず何でもよい。また、塗布液のゼラチン量に対して多価
アルコールの量が５〜３０ｗｔ％であると、塗膜性能が
変化せず好ましい。The polyhydric alcohol to be added is not limited to erythritol as long as it promotes a hydrogen bond with gelatin. When the amount of the polyhydric alcohol is 5 to 30% by weight based on the amount of gelatin in the coating solution, the coating film performance is preferably not changed.
【００９９】〈条件〉第１層の動的表面張力が下記表
７となるようにする以外は、条件と同様にしてカーテ
ン塗布を行った。なお、第２層の動的表面張力は５０ｍ
Ｎ／ｍであった。第１層の動的表面張力が４０ｍＮ／ｍ
以下であるとより良好な塗布が行えることがわかった。<Conditions] Curtain coating was performed in the same manner as in the conditions except that the dynamic surface tension of the first layer was as shown in Table 7 below. The dynamic surface tension of the second layer is 50 m
N / m. The dynamic surface tension of the first layer is 40 mN / m
It was found that better coating could be performed when the content was below.
【０１００】[0100]
【表７】 [Table 7]
【０１０１】動的表面張力を調整するには、界面活性剤
を塗布液に添加することが有効であるが、大量に添加す
ると、現像処理の際に自動現像機のローラ汚染を引き起
こす可能性がある。よって、他層に比べて第１層の塗布
液流量を少なくし、第１層のみに界面活性剤を添加する
ようにすれば、塗布に好ましい物性（動的表面張力）は
確保しながら、現像時のローラ汚染の問題もなく、好ま
しいことがわかった。To adjust the dynamic surface tension, it is effective to add a surfactant to the coating solution. However, if a large amount is added, there is a possibility that the roller will be contaminated in the automatic developing machine during the development processing. is there. Therefore, if the flow rate of the coating liquid for the first layer is reduced as compared with the other layers, and a surfactant is added only to the first layer, the developing properties can be maintained while maintaining preferable physical properties (dynamic surface tension) for coating. No problem of roller contamination at the time was found to be preferable.
【０１０２】[0102]
【発明の効果】同じまたは類似の塗布層を複数設ける塗
布製造装置または塗布方法において、効率的で性能も優
れ、製造コストがかからない塗布方法を提供するもので
ある。また、高速塗布可能な高粘度塗布液において、添
加剤の均一な分散を可能とし、塗布液の発泡も抑えた塗
布液調整方法を提供することが出来た。According to the present invention, there is provided an application method and an application method in which a plurality of the same or similar coating layers are provided, which is efficient, has excellent performance, and does not require manufacturing cost. In addition, it was possible to provide a method for preparing a coating solution that enables uniform dispersion of additives in a high-viscosity coating solution that can be applied at a high speed and suppresses foaming of the coating solution.
【図１】重層塗布用のカーテンコーターの断面図であ
る。FIG. 1 is a sectional view of a curtain coater for multilayer coating.
【図２】本発明の塗布液供給経路に、粘度調整剤、マッ
ト剤または界面活性剤の中から選ばれる少なくとも一つ
の添加剤を供給して添加する実施の形態を説明するため
の概念図である。FIG. 2 is a conceptual diagram for explaining an embodiment in which at least one additive selected from a viscosity modifier, a matting agent, and a surfactant is supplied to and added to a coating liquid supply path of the present invention. is there.
【図３】本発明の複数の添加剤を塗布液供給経路に供
給、添加する場合の一形態を表した概念図である。FIG. 3 is a conceptual diagram illustrating an embodiment in which a plurality of additives of the present invention are supplied to and applied to a coating liquid supply path.
【図４】本発明の複数の添加剤を塗布液供給経路に供
給、添加する場合の一形態を表した概念図である。FIG. 4 is a conceptual diagram illustrating an embodiment in which a plurality of additives of the present invention are supplied to and applied to a coating liquid supply path.
【図５】本発明の複数の添加剤を塗布液供給経路に供
給、添加する場合の一形態を表した概念図である。FIG. 5 is a conceptual diagram showing one embodiment in which a plurality of additives of the present invention are supplied to and added to a coating liquid supply path.
【図６】本発明の塗布液供給釜からの塗布液供給経路が
複数ある場合の一形態を表した概念図である。FIG. 6 is a conceptual diagram showing one embodiment in which there are a plurality of application liquid supply paths from the application liquid supply pot of the present invention.
【図７】本発明の一つの塗布液供給釜から少なくとも２
つの塗布液供給経路が出ていて、そのうち１つの塗布液
供給経路は最下層の塗布液を、もう一つの塗布液供給経
路は最下層の隣接層の塗布液を通し、重層塗布装置に供
給する場合において、最下層の塗布液に添加剤を添加す
る形態を表した概念図である。FIG. 7 shows at least two coating liquids from one coating liquid supply tank of the present invention.
There are two coating liquid supply paths, one of which supplies the lowermost coating liquid and the other of which supplies the lowermost adjacent coating liquid to the multi-layer coating apparatus. FIG. 4 is a conceptual diagram showing a form in which an additive is added to a lowermost coating liquid in a case.
【図８】本発明の一つの塗布液供給釜から少なくとも２
つの塗布液供給経路が出ていて、それぞれ別の塗布装置
につながっている形態を表した概念図である。FIG. 8 shows at least two coating liquids from one coating liquid supply tank of the present invention.
FIG. 3 is a conceptual diagram illustrating a form in which three application liquid supply paths are provided and connected to different application apparatuses.
【図９】スライドホッパー型ビード塗布装置主要部およ
び減圧室の断面で示した塗布装置概略図である。FIG. 9 is a schematic view of a main part of a slide hopper type bead coating apparatus and a cross section of a decompression chamber.
１ バックアップローラ ２ 支持体 ３ 塗布手段 ４ スライド面 ５ スリット ６ エッジガイド ７ 塗布液供給釜 ８ 攪拌子 ９ 塗布液供給口 １０ 送液管 １１ 添加剤供給装置 １２ 送液管 １３ スタチックミキサー １４ 流量計 １５ 送液管 １６ 送液管 １７ 送液管 １８ 重層塗布装置 １９ 塗布装置 ２０ バックアップローラ ２１ 支持体 ２２ 減圧室 ２３ 送液管 ２４ 送液管 ２５ スリット ２６ リップ部 ２７ 塗布液層 ２８ ビード REFERENCE SIGNS LIST 1 backup roller 2 support 3 coating means 4 slide surface 5 slit 6 edge guide 7 coating liquid supply tank 8 stirrer 9 coating liquid supply port 10 liquid supply pipe 11 additive supply device 12 liquid supply pipe 13 static mixer 14 flow meter Reference Signs List 15 liquid feed pipe 16 liquid feed pipe 17 liquid feed pipe 18 multilayer coating device 19 coating device 20 backup roller 21 support 22 decompression chamber 23 liquid feed tube 24 liquid feed tube 25 slit 26 lip portion 27 coating liquid layer 28 bead
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０３Ｃ 1/74 Ｇ０３Ｃ 1/74 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) G03C 1/74 G03C 1/74
Claims (18)
じて塗布装置に送液し、塗布する塗布方法において、粘
度調整剤、マット剤および界面活性剤の中から選ばれる
少なくとも１つの添加剤を、前記送液管中に供給するこ
とにより前記塗布液に対して添加することを特徴とする
塗布方法。1. A coating method in which a coating liquid is fed from a coating liquid supply tank to a coating apparatus through a liquid feed pipe and coated, wherein at least one addition agent selected from a viscosity modifier, a matting agent and a surfactant is added. A coating method, wherein an agent is added to the coating solution by supplying the agent into the liquid sending tube.
添加することを特徴とする請求項１に記載の塗布方法。2. A hardening agent is further supplied into the liquid sending pipe,
The coating method according to claim 1, wherein the coating method is added.
の送液管中に供給することを特徴とする請求項１に記載
の塗布方法。3. The coating method according to claim 1, wherein a plurality of additives are preliminarily mixed and supplied into a pipe for feeding the coating liquid.
液管中に別々に供給することを特徴とする請求項１に記
載の塗布方法。4. The coating method according to claim 1, wherein a plurality of additives are separately supplied into a pipe for feeding the coating liquid.
液供給釜から前記塗布装置に塗布液を供給するための塗
布液供給経路を有し、前記塗布液供給経路が複数あるこ
とを特徴とする塗布製造装置。5. A coating liquid supply tank, a coating apparatus, and a coating liquid supply path for supplying a coating liquid from the coating liquid supply tank to the coating apparatus, wherein the plurality of coating liquid supply paths are provided. Characteristic coating production equipment.
布装置につながっていることを特徴とする請求項５に記
載の塗布製造装置。6. The coating manufacturing apparatus according to claim 5, wherein the plurality of coating liquid supply paths are connected to a plurality of coating apparatuses.
液供給釜から出る１つの送液管より複数の送液管に分岐
することを特徴とする請求項５または６に記載の塗布製
造装置。7. The coating production according to claim 5, wherein the plurality of coating liquid supply paths are branched from a single liquid feeding pipe out of the coating liquid supply kettle to a plurality of liquid feeding pipes. apparatus.
が付いており、複数の送液管につながっていることを特
徴とする請求項５または６に記載の塗布製造装置。8. The coating production apparatus according to claim 5, wherein the coating liquid supply kettle has a plurality of coating liquid supply ports, and is connected to a plurality of liquid feeding pipes.
載の塗布製造装置を用いて塗膜を塗布することを特徴と
する塗布方法。9. A coating method, wherein a coating film is applied using the coating manufacturing apparatus according to at least one of claims 5 to 8.
整剤、マット剤および界面活性剤の中から選ばれる少な
くとも一つの添加剤を含有しない塗布液を貯溜してお
り、前記塗布液供給釜より前記塗布液供給経路に塗布液
が送出される途中で、前記含有されない添加剤を前記塗
布液供給経路に供給して添加することを特徴とする請求
項９に記載の塗布方法。10. The coating liquid supply tank stores a coating liquid that does not contain at least one additive selected from a hardening agent, a viscosity modifier, a matting agent, and a surfactant. The coating method according to claim 9, wherein the additive not contained is supplied to the coating liquid supply path and added while the coating liquid is being sent from the supply kettle to the coating liquid supply path.
布液供給経路を通って、同時重層塗布装置に複数層の塗
布液を供給し、支持体上に塗布する方法において、前記
少なくとも２つの塗布液供給経路のうちの第１の経路は
前期支持体上で最下層となる塗布液を供給し、第２の経
路は前記最下層の隣接層となる塗布液を供給し、前記第
１の経路中で添加剤を供給し添加することを特徴とする
塗布方法。11. A method of supplying a plurality of layers of coating liquid from a coating liquid supply tank to a simultaneous multi-layer coating apparatus through at least two coating liquid supply paths and coating the coating liquid on a support, wherein the at least two coating liquids are provided. The first of the supply paths supplies a coating liquid to be the lowermost layer on the support, and the second path supplies a coating liquid to be an adjacent layer of the lowermost layer. A coating method, characterized in that an additive is supplied and added in (1).
１００００（ｌ／ｓｅｃ）のときの前記最下層の塗布液
粘度を低下させることを特徴とする請求項１１に記載の
塗布方法。12. The coating method according to claim 11, wherein by adding the additive, the viscosity of the coating liquid in the lowermost layer at a shear rate of 10,000 (l / sec) is reduced.
のせん断速度１００００（ｌ／ｓｅｃ）の時の粘度をη
A、前記最下層の隣接層の塗布液のせん断速度１０００
０（ｌ／ｓｅｃ）の時の粘度をηBとした時に、ηB／η
A≧２に調整することを特徴とする請求項１２に記載の
塗布方法。13. The viscosity of the lowermost coating solution to which the additive is added at a shear rate of 10,000 (l / sec) is η.
A , the shear rate of the coating solution in the layer adjacent to the lowermost layer is 1000
When the viscosity at 0 (l / sec) is η B , η B / η
13. The coating method according to claim 12, wherein A ≧ 2 is adjusted.
層の塗布液の動的表面張力値を４０ｍＮ／ｍ以下にし、
前記重層塗布装置がカーテン塗布装置であることを特徴
とする請求項１１ないし１３のいずれか１項に記載の塗
布方法。14. A dynamic surface tension value of the lowermost layer coating solution is reduced to 40 mN / m or less by adding the additive,
14. The coating method according to claim 11, wherein the multilayer coating device is a curtain coating device.
を特徴とする請求項１２ないし１４のいずれか１項に記
載の塗布方法。15. The coating method according to claim 12, wherein the additive is a solvent of a coating solution.
ことを特徴とする請求項１５に記載の塗布方法。16. The coating method according to claim 15, wherein the solvent contains a polyhydric alcohol.
表面粗さ（Ｒａ）が０．２μｍ以上の場合、前記最下層
の塗布液流量が、前記最下層の隣接層の塗布液流量より
も少ないことを特徴とする請求項１２ないし１６のいず
れか１項に記載の塗布方法。17. When the center line surface roughness (Ra) of the surface on which the support is coated is 0.2 μm or more, the flow rate of the coating liquid in the lowermost layer is smaller than the flow rate of the coating liquid in the adjacent layer of the lowermost layer. The coating method according to any one of claims 12 to 16, wherein the amount is small.
最下層の隣接層の塗布液の量流をＱBとした時に、ＱB／
ＱA≧２となることを特徴とする請求項１７に記載の塗
布方法。18. The coating solution flow rate of the bottom layer Q A, when the amount flow of the coating solution of the lowermost adjacent layer was Q B, Q B /
The coating method according to claim 17, wherein Q A ≥2.
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|---|---|---|---|
| JP10332591A JP2000153214A (en) | 1998-11-24 | 1998-11-24 | Coating liquid producing device and coating method |
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|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005335115A (en) * | 2004-05-25 | 2005-12-08 | Konica Minolta Photo Imaging Inc | Thermal transfer image-receiving sheet and its manufacturing method |
| JP2006158993A (en) * | 2004-12-02 | 2006-06-22 | Fuji Photo Film Co Ltd | Curtain coating method |
| US7364774B2 (en) | 2002-04-12 | 2008-04-29 | Dow Global Technologies Inc. | Method of producing a multilayer coated substrate having improved barrier properties |
| US7425246B2 (en) | 2001-04-14 | 2008-09-16 | Dow Global Technologies Inc. | Process for making multilayer coated paper or paperboard |
| US7473333B2 (en) | 2002-04-12 | 2009-01-06 | Dow Global Technologies Inc. | Process for making coated paper or paperboard |
-
1998
- 1998-11-24 JP JP10332591A patent/JP2000153214A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7425246B2 (en) | 2001-04-14 | 2008-09-16 | Dow Global Technologies Inc. | Process for making multilayer coated paper or paperboard |
| US7909962B2 (en) | 2001-04-14 | 2011-03-22 | Dow Global Technologies Llc | Process for making multilayer coated paper or paperboard |
| US7364774B2 (en) | 2002-04-12 | 2008-04-29 | Dow Global Technologies Inc. | Method of producing a multilayer coated substrate having improved barrier properties |
| US7473333B2 (en) | 2002-04-12 | 2009-01-06 | Dow Global Technologies Inc. | Process for making coated paper or paperboard |
| JP2005335115A (en) * | 2004-05-25 | 2005-12-08 | Konica Minolta Photo Imaging Inc | Thermal transfer image-receiving sheet and its manufacturing method |
| US7695762B2 (en) | 2004-05-25 | 2010-04-13 | Dai Nippon Printing Co., Ltd. | Thermal transfer image receiving sheet and production method of the same |
| US8198213B2 (en) | 2004-05-25 | 2012-06-12 | Dai Nippon Printing Co., Ltd. | Thermal transfer image receiving sheet and production method of the same |
| JP2006158993A (en) * | 2004-12-02 | 2006-06-22 | Fuji Photo Film Co Ltd | Curtain coating method |
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