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WO1990008032A1 - Method and tape for joining paper webs - Google Patents

Method and tape for joining paper webs Download PDF

Info

Publication number
WO1990008032A1
WO1990008032A1 PCT/FI1990/000011 FI9000011W WO9008032A1 WO 1990008032 A1 WO1990008032 A1 WO 1990008032A1 FI 9000011 W FI9000011 W FI 9000011W WO 9008032 A1 WO9008032 A1 WO 9008032A1
Authority
WO
WIPO (PCT)
Prior art keywords
tape
web
paper
adhesive surface
protective film
Prior art date
Application number
PCT/FI1990/000011
Other languages
French (fr)
Inventor
Sami PITKÄNEN
Original Assignee
Oy Lindell Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8527754&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1990008032(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Oy Lindell Ab filed Critical Oy Lindell Ab
Publication of WO1990008032A1 publication Critical patent/WO1990008032A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/102—Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/06—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/4607—Preparing leading edge for splicing by adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/18—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet characterized by perforations in the adhesive tape

Definitions

  • This invention relates to a method for joining paper webs by means of tapes provided with a protective film, in accordance with which an adhesive surface of a first tape is exposed, said tape is attached substantially transversely to a first web at a distance from the end edge of the web so that it will extend from one longitudinal edge of the web to the other, the end portion of the web between the tape and the end edge of the web is removed, the same steps are repeated for a second web, and the junction point between the webs is covered with a second tape.
  • the invention also relates to a tape used in the method.
  • the joining is carried out with a two-sided tape.
  • a two-sided tape furnished with a protective film covering one side is fixed to the first paper web in the vicinity of the end edge thereof, whereafter the part of the web between the tape and the end edge of the web, the so called tail, is torn away by hand along the edge of the tape.
  • the protective film on the tape is removed and the other paper web is fixed on top of the tape and the end portion is torn away.
  • This known method has the disadvantage that the torn end edge of the paper web does not always exactly follow the edge of the adhesive surface of the tape, but the edge may have notches resulting from inaccurate tearing, on account of which some of the adhesive surface of the tape will appear. This will result in that the junction points on the paper web wound on a roll will adhere to the ply on top and the ply underneath. This can be prevented for the outer side of the junction by covering the junction with a one-sided tape, but a corresponding operation cannot be carried out on the lower side of the junction, since it rests against the previous ply on the roll.
  • the known method explained above has the disadvantage that the paper web will often adhere at the junction at least to the ply of the paper web underneath, wherefore the paper web may be broken when it is removed from the roll.
  • the junction point is also relatively thick, since there are superimposed therein two layers of paper and one or two layers of tape. The thickness of the web thus changes abruptly at this point, on account of which the printing roll may even be broken as a result of the impact thereupon.
  • the object of this invention is to provide a method for joining paper webs, wherewith a junction is produced which involves no danger of adhesion between the paper plies and which is still equally thin as, or thinner than, the junction produced by the known method.
  • the method of the invention is characterized in that both paper webs are fixed end to end onto the same side of the first tape and that the adhesive surface of the first tape is exposed in steps so that prior to the fixing of the tape to the first paper web a longitudinal adhesive zone having a width smaller than the width of the adhesive surface of the tape is exposed, and the remainder of the adhesive surface is exposed after the removal of the end portion of the first web prior to the fixing of the tape to the second web.
  • a butt joint covered on each side with one-sided tapes whose adhesive surface faces the paper is produced, and thus no outwardly exposed adhesive surfaces which could adhere to the other plies of the roll can be produced at the junction point. Furthermore, because of the butt joint between the paper webs the junction point is as thin as, or thinner than, the junction point produced with the previously known method, and the structure of the junction is gradually enlarging in thickness, wherefore the junction point will enter and leave the printing rolls softly.
  • the preferable procedure is that the adhesive zone located adjacent the longitudinal edge of the tape which is remote from the end edge of the first paper web is exposed first, and thereafter the adhesive zone adjacent the opposite longitudinal edge is exposed.
  • the invention also relates to a tape for joining paper webs, one side of said tape having an adhesive surface covered with a removable protective film.
  • the tape according to the invention is characterized in that the protective film comprises two longitudinal parts which can be separately removed from the adhesive surface.
  • the protective film for the -tape would be easily removable in two steps, according to one embodiment of the invention the protective film has a longitudinal slot or weakening line which separates the different parts of the film.
  • the parts of the film are substantially equally broad and that the combined width thereof corresponds to the width of the tape.
  • FIGS 1 to 6 illustrate the different steps of the method of the invention.
  • Figure 7 shows a cross-section of a produced junction.
  • Figure 8 shows a top view of a tape used in the method
  • Figure 9 shows a magnified cross-section of the middle portion of the tape.
  • the tape used in the method of the invention has been shown more closely in Figures 8 and 9.
  • the adhesive surface 2 of the one-sided tape is covered by parts 5,6 of the protective film, which in the shown embodiment are equally broad and whose combined width corresponds to the width of the tape 1.
  • Both the slot 9 and parts 5, 6 of the protective film are continuous in the longitudinal direction of the tape and extend to the edges of the tape.
  • the bearing layer of the tape is indicated with the reference numeral 10 in Figure 9.
  • the slot 9 may be replaced for instance by a weakening line or some other arrangement which makes it possible to remove the protective film in steps from the tape.
  • the tape need not be fixed exactly transverse to the paper webs, but often it is advantageous to fix it to the webs somewhat diagonally, as has been shown in the figures, whereby the impact on the printing roll is weakened.
  • the invention is particularly suitable for use in connection with thin and thick paper qualities, whereby the most suitable thickness for the bearing layer 10 of the tape is selected in view of the required tensile strength and the total thickness of the junction, but it can also be used in connection with other equivalent mater- ials.
  • the width of parts 5,6 of the protective film can be varied according to need.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

This invention relates to a method and tape for joining paper webs. In paper production, a paper web is accidentally broken or cut, in which case the ends are joined together by means of a tape. In the known junction, the ends of the webs are located one on top of the other, and there is a two-sided tape therebetween. On account of faults in work, the paper does not always completely cover the tape, wherefore the junction point in the roll will adhere to the paper on top and underneath, which will result in a web rupture. This disadvantage can be avoided by using one-sided tape (1) whose protective film is divided into two parts (5, 6), whereby a butt joint can be made which involves no danger of sticking.

Description

Method and tape for joining paper webs
This invention relates to a method for joining paper webs by means of tapes provided with a protective film, in accordance with which an adhesive surface of a first tape is exposed, said tape is attached substantially transversely to a first web at a distance from the end edge of the web so that it will extend from one longitudinal edge of the web to the other, the end portion of the web between the tape and the end edge of the web is removed, the same steps are repeated for a second web, and the junction point between the webs is covered with a second tape. The invention also relates to a tape used in the method.
After a paper web has been produced it will in general be immediately subjected to re-checks wherein for example holes and impurities are removed from the paper. Thereby the paper web is cut at the defective points and the end edges thus produced are joined together by means of at least one substantially transverse, self-adhesive tape.
According to the most often employed method, the joining is carried out with a two-sided tape. Thereby a two-sided tape furnished with a protective film covering one side is fixed to the first paper web in the vicinity of the end edge thereof, whereafter the part of the web between the tape and the end edge of the web, the so called tail, is torn away by hand along the edge of the tape. Thereafter the protective film on the tape is removed and the other paper web is fixed on top of the tape and the end portion is torn away.
This known method has the disadvantage that the torn end edge of the paper web does not always exactly follow the edge of the adhesive surface of the tape, but the edge may have notches resulting from inaccurate tearing, on account of which some of the adhesive surface of the tape will appear. This will result in that the junction points on the paper web wound on a roll will adhere to the ply on top and the ply underneath. This can be prevented for the outer side of the junction by covering the junction with a one-sided tape, but a corresponding operation cannot be carried out on the lower side of the junction, since it rests against the previous ply on the roll.
Thus the known method explained above has the disadvantage that the paper web will often adhere at the junction at least to the ply of the paper web underneath, wherefore the paper web may be broken when it is removed from the roll. The junction point is also relatively thick, since there are superimposed therein two layers of paper and one or two layers of tape. The thickness of the web thus changes abruptly at this point, on account of which the printing roll may even be broken as a result of the impact thereupon.
The object of this invention is to provide a method for joining paper webs, wherewith a junction is produced which involves no danger of adhesion between the paper plies and which is still equally thin as, or thinner than, the junction produced by the known method. The method of the invention is characterized in that both paper webs are fixed end to end onto the same side of the first tape and that the adhesive surface of the first tape is exposed in steps so that prior to the fixing of the tape to the first paper web a longitudinal adhesive zone having a width smaller than the width of the adhesive surface of the tape is exposed, and the remainder of the adhesive surface is exposed after the removal of the end portion of the first web prior to the fixing of the tape to the second web.
With the method of the invention, a butt joint covered on each side with one-sided tapes whose adhesive surface faces the paper is produced, and thus no outwardly exposed adhesive surfaces which could adhere to the other plies of the roll can be produced at the junction point. Furthermore, because of the butt joint between the paper webs the junction point is as thin as, or thinner than, the junction point produced with the previously known method, and the structure of the junction is gradually enlarging in thickness, wherefore the junction point will enter and leave the printing rolls softly.
To produce the butt joint, the preferable procedure is that the adhesive zone located adjacent the longitudinal edge of the tape which is remote from the end edge of the first paper web is exposed first, and thereafter the adhesive zone adjacent the opposite longitudinal edge is exposed.
The invention also relates to a tape for joining paper webs, one side of said tape having an adhesive surface covered with a removable protective film. The tape according to the invention is characterized in that the protective film comprises two longitudinal parts which can be separately removed from the adhesive surface.
In order that the protective film for the -tape would be easily removable in two steps, according to one embodiment of the invention the protective film has a longitudinal slot or weakening line which separates the different parts of the film. In order for both paper webs to adhere to the tape equally strongly, it is preferred that the parts of the film are substantially equally broad and that the combined width thereof corresponds to the width of the tape.
One advantageous embodiment of the invention is explained more closely in the following with reference to the accompanying drawing wherein
Figures 1 to 6 illustrate the different steps of the method of the invention.
Figure 7 shows a cross-section of a produced junction.
Figure 8 shows a top view of a tape used in the method, and
Figure 9 shows a magnified cross-section of the middle portion of the tape.
When a defective point, such as a hole or a point deviating in colour from the other parts of the web, is found in the paper web to be handled, this point is removed by cutting the paper web on both sides of the defective points whereafter the paper webs are again joined by means of a tape.
The method of the invention is explained in the following with reference to Figures 1 to 6. In accordance with Figure 1, one takes a one-sided tape 1 as shown in Figures 8 and 9, whereof a longitudinal zone of the adhesive surface 2 is exposed, the width of said zone being substantially half of the width of the tape and being delimited by that edge of the tape which is remote from the end edge 4 of the first paper web 3. When the tape 1 is fastened to the paper web 3 by means of the adhesive zone 2, the end portion of the paper web which is located between the end edge 4 and the edge of the adhesive zone 2 which is closest to this end edge is torn off from the paper web, whereby the situation shown in Figure 2 is created. The tearing is done by hand, and it is made possible by the portion 5 of the protective film which still partly covers the tape. The removed part of the protective film is indicated by reference numeral 6.
When the paper web 3 is fixed to the tape 1, part 5 of the protective film is removed from the adhesive surface 2 of the tape, whereby a second longitudinal zone of the adhesive surface is exposed. Thereafter the second paper web 7 is fixed to the second adhesive zone of the tape similarly as web 3, and also in this case the end portion of the web is torn off as shown in Figure 4. The accurate tearing, i.e. trimming, of the end portion is now made possible by the edge of the first torn web. Thus both ends are accurately laid face to face without gaps or overlapping paper. The result is a butt joint between the paper webs 3,7 as shown in Figure 5, wherein the end edges of the webs are face to face, fixed to the same one-sided tape 1. Finally, the junction is covered by an one-sided tape 8 from the side opposite tape 1. The tape 8 is preferably substantially narrower than tape 1. After the tapes have been cut, the junction shown in Figure 7 is ready.
The tape used in the method of the invention has been shown more closely in Figures 8 and 9. The adhesive surface 2 of the one-sided tape is covered by parts 5,6 of the protective film, which in the shown embodiment are equally broad and whose combined width corresponds to the width of the tape 1. There is a slot 9 between parts 5,6 of the protective film, on account of which parts 5,6 can be removed from the tape independently and at separate points of time. Both the slot 9 and parts 5, 6 of the protective film are continuous in the longitudinal direction of the tape and extend to the edges of the tape. The bearing layer of the tape is indicated with the reference numeral 10 in Figure 9.
The above presents a preferred embodiment of the method of the invention and the tape used therein, and it is obvious that the invention may differ in its details considerably from what has been presented above. Thus the slot 9 may be replaced for instance by a weakening line or some other arrangement which makes it possible to remove the protective film in steps from the tape. Further, it is to be noted that the tape need not be fixed exactly transverse to the paper webs, but often it is advantageous to fix it to the webs somewhat diagonally, as has been shown in the figures, whereby the impact on the printing roll is weakened. The invention is particularly suitable for use in connection with thin and thick paper qualities, whereby the most suitable thickness for the bearing layer 10 of the tape is selected in view of the required tensile strength and the total thickness of the junction, but it can also be used in connection with other equivalent mater- ials. The width of parts 5,6 of the protective film can be varied according to need.

Claims

C l a i m s :
1. A method for joining paper webs by means of tapes provided with a protective film, in accordance with which an adhesive surface (2) of a first tape (1 ) is exposed, said tape is attached substantially transversely to a first web (3) at a distance from the end edge (4) of the web so that it will extend from one longitudinal edge of the web to the other, the end portion of the web between the tape (1) and the end edge (4) of the web is removed, the same steps are repeated for a second web (7), and the junction point between the webs is covered with a second tape (8), c h a r a c t e r i z e d in that both paper webs (3, 7) are fixed end to end onto the same side of the first tape (1) and that the adhesive surface (2) of the first tape is exposed in steps so that prior to the fixing of the tape to the first paper web (3) a longitudinal adhesive zone having a width smaller than the width of the adhesive surface (2) of the tape is exposed, and the remainder of the adhesive surface is exposed after the removal of the end portion of the first web (3) prior to the fixing of the tape to the second web (7).
2. A method as claimed in claim 1, c h a r a c t e r i z e d in that the adhesive zone located adjacent the longitudinal edge of the tape (1) which is remote from the end edge (4) of the first paper web (3) is exposed first, and thereafter the adhesive zone adjacent the opposite longitudinal edge is disposed.
3. A tape for joining paper webs, one side of said tape (1) having an adhesive surface ( 2 ) covered with a removable protective film (5, 6), c h a r a c t e r i z e d in that the protective film comprises two longitudinal parts (5, 6) which can be separately removed from the adhesive surface.
4. A tape as claimed in claim 3, c h a r a c t e r i z e d in that the protective film has a longitudinal slot (9) or weakening line separating the different parts (5, 6) of the film from one another.
5. A tape as claimed in claim 3, c h a r a c t e r i z e d in that the parts (5, 6) of the film are substantially equally broad and that the combined width thereof corresponds to the width of the tape (1).
PCT/FI1990/000011 1989-01-19 1990-01-12 Method and tape for joining paper webs WO1990008032A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI890287 1989-01-19
FI890287A FI81997C (en) 1989-01-19 1989-01-19 Procedure and tape for joining paper webs

Publications (1)

Publication Number Publication Date
WO1990008032A1 true WO1990008032A1 (en) 1990-07-26

Family

ID=8527754

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1990/000011 WO1990008032A1 (en) 1989-01-19 1990-01-12 Method and tape for joining paper webs

Country Status (6)

Country Link
EP (1) EP0454701A1 (en)
JP (1) JPH04503032A (en)
AU (1) AU4825290A (en)
CA (1) CA2045643A1 (en)
FI (1) FI81997C (en)
WO (1) WO1990008032A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29500653U1 (en) * 1995-01-17 1995-03-30 Alex Breuer GmbH, 50667 Köln Glued paper webs
US5692699A (en) * 1993-04-26 1997-12-02 Minnesota Mining And Manufacturing Company Splicing tape, splicing method and splice using the splicing tape
US5996927A (en) * 1994-04-26 1999-12-07 3M Innovative Properties Company Splicing tape, splicing method and splice using the splicing tape
USRE38356E1 (en) * 1994-04-26 2003-12-23 3M Innovative Properties Company Splicing method and splice using the splicing tape
US6899933B2 (en) 2002-09-09 2005-05-31 Permacel Splicing tape with separating portions
US6951676B2 (en) 2000-09-25 2005-10-04 3M Innovative Properties Company Butt splicing tapes and butt splicing methods
US7086627B2 (en) 2002-12-13 2006-08-08 Tesa Ag Adhesive tape for joining the start of a new paper roll to the end of an old, expiring paper roll
DE102006003200A1 (en) * 2006-01-24 2007-08-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Method for splicing material webs and splice device
US7476429B2 (en) 2003-11-03 2009-01-13 Permacel Bridge label for splicing tape
CN109790928A (en) * 2016-10-13 2019-05-21 Cqlt萨固密技术有限公司 Method for producing a strip material for processing into a seal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1043556B (en) * 1957-08-17 1958-11-13 Heinrich Hermann Papierwarenfa Method for producing groups of sections or sections from a carrier layer for a permanent adhesive and a base covering this, such as self-adhesive labels
DE2123880A1 (en) * 1971-05-14 1972-11-23 Grossarth, Kurt, 4200 Oberhausen Method and device for applying adhesive strips
US4264401A (en) * 1976-10-22 1981-04-28 Ganz Brothers, Inc. Web splicer
US4348440A (en) * 1979-03-29 1982-09-07 Professional Tape Company, Inc. Pressure sensitive seal
US4645558A (en) * 1983-11-10 1987-02-24 Tokyo Automatic Machinery Works, Ltd. Film feeding apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1043556B (en) * 1957-08-17 1958-11-13 Heinrich Hermann Papierwarenfa Method for producing groups of sections or sections from a carrier layer for a permanent adhesive and a base covering this, such as self-adhesive labels
DE2123880A1 (en) * 1971-05-14 1972-11-23 Grossarth, Kurt, 4200 Oberhausen Method and device for applying adhesive strips
US4264401A (en) * 1976-10-22 1981-04-28 Ganz Brothers, Inc. Web splicer
US4348440A (en) * 1979-03-29 1982-09-07 Professional Tape Company, Inc. Pressure sensitive seal
US4645558A (en) * 1983-11-10 1987-02-24 Tokyo Automatic Machinery Works, Ltd. Film feeding apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692699A (en) * 1993-04-26 1997-12-02 Minnesota Mining And Manufacturing Company Splicing tape, splicing method and splice using the splicing tape
US5996927A (en) * 1994-04-26 1999-12-07 3M Innovative Properties Company Splicing tape, splicing method and splice using the splicing tape
USRE38356E1 (en) * 1994-04-26 2003-12-23 3M Innovative Properties Company Splicing method and splice using the splicing tape
DE29500653U1 (en) * 1995-01-17 1995-03-30 Alex Breuer GmbH, 50667 Köln Glued paper webs
US6951676B2 (en) 2000-09-25 2005-10-04 3M Innovative Properties Company Butt splicing tapes and butt splicing methods
US6899933B2 (en) 2002-09-09 2005-05-31 Permacel Splicing tape with separating portions
US7037397B2 (en) 2002-09-09 2006-05-02 Permacel Splicing tape with separating portions
US7086627B2 (en) 2002-12-13 2006-08-08 Tesa Ag Adhesive tape for joining the start of a new paper roll to the end of an old, expiring paper roll
US7476429B2 (en) 2003-11-03 2009-01-13 Permacel Bridge label for splicing tape
DE102006003200A1 (en) * 2006-01-24 2007-08-02 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Method for splicing material webs and splice device
CN109790928A (en) * 2016-10-13 2019-05-21 Cqlt萨固密技术有限公司 Method for producing a strip material for processing into a seal

Also Published As

Publication number Publication date
FI81997C (en) 1991-01-10
AU4825290A (en) 1990-08-13
EP0454701A1 (en) 1991-11-06
JPH04503032A (en) 1992-06-04
FI81997B (en) 1990-09-28
FI890287L (en) 1990-07-20
FI890287A0 (en) 1989-01-19
CA2045643A1 (en) 1990-07-20

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