JPH06270596A - Transfer sheet and dyeing method using the same - Google Patents

Abstract

PURPOSE:To provide a transfer sheet and a dyeing method using the same in which a dyed product having superior cleanness and dyeing quality level can be obtained. CONSTITUTION:A method for dyeing using a transfer sheet has a mold release layer at one side, a coating layer containing sizing agent and adhesive on its outer layer in such a manner that a transfer rate of the agent and the adhesive to cloth when the coating layer side and the cloth are matched and pressed at 1-4kg/cm<2> is 98-100%, and comprises the step of applying dyeing ink to an endless belt having a smooth surface and nonpermeability by an ink jet system. Then, the method also comprises the steps of absorbing the ink on the belt to the coating layer side of the sheet, removing solvent, then matching the layer side of the sheet and the cloth, press-bonding the both, transferring the agent and the adhesive absorbed with the ink of the layer of the sheet to the cloth, and then color developing it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer paper and a printing method using the transfer paper.

[0002]

2. Description of the Related Art Conventionally, as a method for printing a pattern on a cloth, a screen printing method, a roller printing method, a rotary screen printing method, a transfer printing method, etc. have been used. It is necessary to prepare engraving rollers, transfer paper, etc., and since the production of these screen frames, engraving rollers, transfer paper is quite expensive, not only is it economically incompatible unless a large lot is produced, It has the drawback of not being able to quickly respond to the diversification of fashion.

In order to solve these drawbacks, a sample is read by a scanner and image processing is performed by a computer.
A technique for printing the result by an inkjet method has been developed and has been put to practical use in the field of paper in recent years. This ink jet method has attracted attention in the field of fibers because it can be manufactured without spending time and money, and attempts have been made to apply it to cloth.

However, when the ink jet system is applied to the cloth, there is a problem in that the dye ink is diffused along the fibers and yarns constituting the cloth due to the capillary phenomenon and bleeding occurs, so that the sharpness is remarkably deteriorated. Various pretreatment methods have been proposed in order to solve this problem, but if the bleeding is prevented too much, there is a problem that the ink dots will appear in the obtained product and it will become a print tone, and the excellent characteristics of the inkjet method. Nevertheless, it is one of the reasons why the application to the fabric is delayed.

Therefore, there is also a method in which a dye ink containing a heat sublimable dye is applied to a transfer paper used for ordinary transfer printing by an ink jet method and then dried, and the paper and the cloth are superposed and the dye is transferred to the cloth. Although it has been studied, there is a problem that the ink dots formed on the transfer paper are directly transferred to the cloth to give a print tone.

[0006]

DISCLOSURE OF THE INVENTION The inventors of the present invention, as a result of continuing diligent research on an ink-jet method for textile printing, use an endless belt having a smooth surface and a non-penetrating surface and a transfer paper or a transfer paper as an intermediary. Thus, the inventors have found that the problems of the existing law can be solved and the present invention has been completed. An object of the present invention is to provide a transfer paper and a printing method using the transfer paper, which can provide a printed product having excellent sharpness and printing quality.

[0007]

In order to achieve the above object, the present invention has the following constitution. That is, the first invention is a transfer paper having a release layer on one side surface and further having a coating layer composed of a sizing agent and a pressure-sensitive adhesive on the outer layer thereof.
A transfer characterized in that the transfer rate of the sizing agent and the pressure-sensitive adhesive to the cloth is 98 to 100% when the coating layer side of the transfer paper and the cloth are combined and pressed together at 1 to 4 kg / cm ^2. The paper is the gist, and the second invention has a release layer on one side, and further has a coating layer composed of a sizing agent and a pressure-sensitive adhesive on the outer layer thereof, and the coating layer side and the cloth are combined. A printing method using a transfer paper in which the transfer ratio of the sizing agent and the pressure-sensitive adhesive to the cloth when pressure-bonded at 1 to 4 kg / cm ² is 98 to 100%, on a smooth and impermeable endless belt Dye ink on the endless belt by the inkjet method, then the dye ink on the endless belt is absorbed by the coating layer side of the transfer paper, and after removing the solvent, the coating layer side of the transfer paper and the cloth are combined and pressure-bonded to each other. And transfer paper coaty A gist of a textile printing method is characterized in that a sizing agent and an adhesive agent which have absorbed a dye ink of a coating layer are transferred to a cloth, and then color is developed, and the third invention is,
A release layer is provided on one side, and a coating layer composed of a sizing agent and a pressure-sensitive adhesive is further provided on the outer layer of the release layer. The coating layer side and the fabric are combined and pressure-bonded at 1 to 4 kg / cm ² The dye ink is applied to the coating layer side of the transfer paper having a transfer rate of 98% to 100% of the sizing agent and the adhesive agent by an inkjet method, and after removing the solvent, the coating layer side of the transfer paper and the cloth are combined. A printing method is characterized in that both are pressure-bonded to each other, a sizing agent and a pressure-sensitive adhesive which have absorbed a dye ink in a coating layer of a transfer paper are transferred to a cloth, and then color is developed.

The transfer paper used in the present invention is preferably paper made from kraft pulp or grind pulp as a raw material. The weight is preferably in the range of 40 to 120 g / m ^{2, and} the thickness is preferably in the range of 0.02 to 0.4 mm.

Such a transfer paper has, first of all, a layer of a release agent. Examples of the release agent include silicone resin, fluororesin, and polyolefin resin such as polyethylene resin and polypropylene resin.

Then, such a release agent is applied to the surface of the transfer paper by a reverse roll coater or other ordinary coating machine and dried to form a release layer. The thickness of the release layer is preferably about 2 to 20 μm.

The second transfer paper has a coating layer composed of a sizing agent and an adhesive on the outer layer of the release layer. Examples of the paste include starches (starch, soluble starch, water-soluble starch derivative), water-soluble cellulose derivative (carboxymethyl cellulose, hydroxyethyl cellulose,
Sodium alginate, gum arabic, gums (locust bean gum, guar gums), water-soluble proteins (gelatin, glue, etc.), water-soluble synthetic polymer compounds (sodium polyacrylate, polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone) , Polyacrylamide, polyethyleneimine 4
A sizing agent for printing, such as a graded water-soluble cationic polymer).

As the adhesive, water-soluble polyester resin, polyacrylic acid, polyacrylic acid ester, polyvinyl compound, maleic acid type polymer, synthetic rosin emulsion, dammal, copal, hydrogenated rosin, hydrogenated rosin ester, phenol resin , Alkyd resin, epoxy resin and the like.

Then, such a sizing agent and a pressure-sensitive adhesive are applied to the release layer side of the transfer paper on which the release layer is formed by a reverse roll coater or other ordinary coating machine and dried to form a coating layer. To do so. still,
The thickness of the coating layer is preferably about 1 to 50 μm.

What is essential in the transfer paper of the present invention is that the coating layer side of the transfer paper and the cloth are put together in an amount of 1 to 4 kg.
The transfer rate of the sizing agent and the pressure-sensitive adhesive to the fabric when pressure-bonded at / cm ² is 98 to 100%. When the transfer rate is less than 98%, when printing is performed using this transfer paper, the amount of the dye adhering to the coating layer of the transfer paper can be transferred to the fabric is small, and a dark color cannot be obtained. Exceeding values have a high degree of releasability, the amount of dye adhering to the coating layer of the transfer paper can be transferred to the cloth to obtain a dark color, and the transfer paper can be reused, which reduces the processing cost. Therefore, the above range is required.

In the present invention, the cloth includes woven fabric, knitted fabric, non-woven fabric and the like. Examples of fibers forming the cloth include natural fibers such as cotton, rayon, hemp, silk and wool, semi-synthetic fibers such as acetate and triacetate, and synthetic fibers such as polyester, polyamide and acrylic.

Next, the first method of the present invention will be described.

In the present invention, the material of the endless belt is not particularly limited as long as it has a smooth surface and is impermeable.
Examples include metals, rubbers, glass, plastics, etc., but they have no affinity with dyes and have low ink diffusivity.
A metal that is easy to wipe and has good heat resistance is particularly preferable.
Then, it is preferable to form an adhesive layer having adhesiveness to the transfer paper on the surface of the endless belt. The adhesive forming the adhesive layer is not particularly limited as long as it has adhesiveness to the cloth, and examples thereof include acrylic acid-based resin, vinyl ether copolymer resin, natural rubber, styrene-butadiene copolymer resin, Examples thereof include acrylonitrile-butadiene resin, polyurethane resin, silicone resin and the like. If necessary, a tackifier such as rosin, dammar, copal, hydrogenated rosin, hydrogenated rosin ester, phenol resin, alkyd resin, or epoxy resin may be added. Then, such an adhesive is dissolved in, for example, an organic solvent, applied to the surface of the endless belt by a reverse roll coater or other ordinary coating machine, and dried to form an adhesive layer.

The dye ink used in the present invention is
It consists of dye and solvent, and if necessary, dispersant,
A surfactant, a surface tension adjusting agent, a pH adjusting agent, an electric conductivity adjusting agent, etc. are added. The kind of dye may be selected according to the fibers constituting the cloth, and any of direct dye, reactive dye, acid dye, cationic dye, disperse dye, naphthol dye and the like can be used. Examples of the solvent include water or a mixture of water and a water-soluble organic solvent. Examples of the water-soluble organic solvent include ethylene glycol, diethylene glycol, triethylene glycol, thiodiethylene glycol, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether and polyethylene glycol dimethyl ether. Examples thereof include glycols.

The application of the dye ink to the above endless belt by the ink jet system is a bubble jet system in which a heating resistance element is embedded in the nozzle, the ink is boiled by the heat generation, and the ink is ejected by the pressure of the bubble, a piezoelectric element. A pulse jet method in which an electrical signal is applied to the ink to deform it to excite changes in the volume of the ink chamber and cause ink particles to fly, and ink is continuously jetted under pressure from a nozzle that is vibrating ultrasonically to form particles, and the particles are controlled to a charged amount. It is carried out by a charge control method or the like in which recording and non-recording particles are recorded separately by passing and deflecting in a constant electric field.

As a method of absorbing the dye ink on the endless belt into the coating layer of the transfer paper, the dye ink is applied onto the endless belt by an ink jet method, and then the transfer paper on the endless belt is changed to the endless belt. Examples of the method include a method in which the transfer paper is attached so as to abut, and the transfer paper is peeled off from the endless belt after 1 to 20 seconds.

After the dye ink on the endless belt is absorbed in the coating layer of the transfer paper, it is dried, the coating layer side of the transfer paper and the cloth are put together and pressed together, and the dye ink of the coating layer of the transfer paper is removed. The absorbed sizing agent and adhesive are transferred to the fabric. Then, after that, the transfer paper is peeled off from the cloth, and the cloth is treated by a method according to the dye contained in the dye ink to fix the dye to the fiber.

Next, the second method of the present invention will be described. The second method of the present invention does not apply the dye ink directly onto the endless belt by an ink jet method, but applies the dye ink to a transfer paper attached on the endless belt so that the coating layer side does not contact the endless belt. It is the same as the first method of the present invention except that the inkjet method is applied to the first method of the present invention.

[0023]

EXAMPLES The present invention will now be described in detail based on examples.

Example 1 A stainless steel endless belt was attached to an FD Thick.
A coating liquid consisting of 20% by weight of ner 100 (acrylic resin manufactured by Furukawa Chemical Co., Ltd.), 2% by weight of Succinol CSK (higher alcohol activator manufactured by Senka Co., Ltd.) and 78% by weight of water was applied by a reverse roll coater and dried. . The pressure-sensitive adhesive layer had a thickness of 5 μm.

On the other hand, 98 parts of KS776A (Shin-Etsu Chemical Co., Ltd., silicon resin, 30% toluene solvent), Cat-PL-on transfer paper (weight 60 g / m ² , thickness 0.2 mm).
2 parts of 8 (Shin-Etsu Chemical Co., Ltd. silicon resin catalyst) was applied by a reverse roll coater and dried at 130 ° C.
It was cured for 2 minutes. The release layer had a thickness of 25 μm. Then, on this transfer paper, Meiro gum NP-8 (Me
yhall, galactomannan, sizing agent) 8% by weight,
A coating liquid consisting of 2% by weight of Sancorsol YS227 (manufactured by Sanko Trading Co., modified vinyl resin, adhesive) and 90% by weight of water is applied by a reverse roll coater,
Dried. The thickness of the coating layer was 30 μm.

C. I. Disperse Blue 7
3 (disperse dye) 3% by weight, Solvalite C-45 (manufactured by Kyoeisha Co., Ltd., naphthalenesulfonic acid formalin condensate dispersant) 15% by weight, and water 82% by weight were prepared as a dye ink, which was mounted on an inkjet printer. Continuous printing of 8 dots / mm was carried out on the stainless endless belt having the pressure-sensitive adhesive layer formed thereon.

Then, a transfer paper having the release layer and the coating layer is attached to the endless belt to which the dye ink has been applied so as to come into contact with the endless belt from the coating layer side, and the dye ink is left standing for 10 seconds. After being absorbed by the coating layer of No. 1, the transfer paper was peeled off from the endless belt and dried at 120 ° C. for 2 minutes.

Next, this transfer paper was woven with a plain woven fabric made of polyethylene terephthalate (polyethylene terephthalate 50d / 18f was used for the warp and weft so that the coating layer side would come into contact, with a warp density of 110 / inch and a weft density of 95 / inch, Combined with desizing, scouring, and heat-setting processing by a known method) and both are 3 kg / c.
Crimp in m ^2, and peeling off the transfer sheet. The transfer rate of the sizing agent and the pressure sensitive adhesive of the transfer paper to the cloth was 99.8%. Then, the plain woven fabric was heat-treated at 210 ° C. for 20 seconds to transfer the dye to the plain woven fabric, washed and then dried to obtain the product of Example 1.

COMPARATIVE EXAMPLE 1 The heat set up plain weave fabric used in Example 1 was used in Example 1.
It was attached to a stainless steel endless belt coated with the same adhesive as in Example 1, the same ink as in Example 1 was mounted on an inkjet printer, and continuous printing at 8 dots / mm was performed on a plain woven fabric. The textile print thus obtained is then dried at 120 ° C. for 2 minutes and then at 210 ° C. for 3 minutes.
A dry heat treatment was performed for 0 seconds, reduction washing, hot water washing and drying were performed to obtain a product of Comparative Example 1.

Example 2 KS7 was applied to transfer paper (weight 80 g / m ² , thickness 0.2 mm).
76A (Shin-Etsu Chemical Co., Ltd. silicon resin) 98 parts, Ca
t-PL-8 (Shin-Etsu Chemical Co., Ltd. silicon resin catalyst)
Two parts were applied with a reverse roll coater, dried and then cured at 130 ° C. for 2 minutes. The thickness of the release layer is 2
It was 0 μm. Next, on this transfer paper, 10% by weight of Duck Algin NSPH (manufactured by Kibunsha, high-viscosity algin, sizing agent), 2% by weight of Sankosol YS227 (manufactured by Sanko Trading Co., modified vinyl resin, adhesive) and 90% by weight of water. Was coated with a reverse roll coater and dried. The thickness of the coating layer was 30 μm.

C. I. Reactive Blue 2
1 (reactive dye) 15% by weight, urea 5% by weight and water 80
A dye ink consisting of 10 wt% was prepared, mounted on an ink jet printer, and continuous printing of 12 dots / mm was applied to the stainless endless belt coated with the same adhesive as in Example 1 and the release layer. The test was performed on the transfer paper on which the coating layer was formed. The transfer paper was attached to the endless belt so that the coating layer side did not contact the endless belt. Then, this transfer paper was peeled off from the endless belt and dried at 120 ° C. for 2 minutes.

Then, this transfer paper was woven so that the coating layer side would come into contact with it (weaving using 60-count single yarn for the warp and weft, with a warp density of 90 yarns / inch and a weft yarn density of 80 yarns / inch, and by a known method. Desizing, scouring, bleaching, and mercerizing) were both applied under pressure at ² kg / cm ² , and the transfer paper was peeled off. The transfer rate of the sizing agent and the pressure-sensitive adhesive of the transfer paper to the cloth was 99.5%. Then 1 plain weave
A steam heat treatment was performed at 02 ° C. for 10 minutes to transfer the dye to the plain woven fabric, which was washed and dried to obtain the product of Example 2.

Comparative Example 2 Duck Algin NSPH (manufactured by Kibunsha Co., Ltd., high viscosity algin, sizing agent) was added to a plain weave with the same mercerized surface as in Example 2.
A treatment solution consisting of 0.5% by weight, urea (hydrotrope agent) 3% by weight, sodium hydrogencarbonate 3% by weight and water 93.5% by weight was padded and squeezed with a mangle to 90%, then 120 It was dried at ℃ for 2 minutes.

This plain woven fabric which had been pretreated was attached to a stainless steel endless belt coated with the same adhesive as in Example 1, the same ink as in Example 2 was mounted on an ink jet printer, and 12 dots / mm Continuous printing was performed on the fabric. Next, the printed fabric thus obtained was dried at 120 ° C. for 2 minutes, subjected to steam heat treatment at 102 ° C. for 10 minutes, washed, and then dried to obtain a product of Comparative Example 2.

The bleeding, dot roughness and density of the products obtained in Examples 1 and 2 and Comparative Examples 1 and 2 were evaluated by visual observation by 10 professional inspectors. The results are shown in Table 1.

[0036]

[Table 1] Bleeding: ◎ No bleeding ○ Almost no bleeding △ Some bleeding × Bleeding Dot roughness: ○ Dot discrimination is not possible △ Dot discrimination is possible × Dot discrimination is possible Darkness: ○ High density △ Low density × Low density

As is clear from Table 1, the products obtained in the examples have no bleeding and are excellent in sharpness, ink dots are not visible, and the printing quality is high.

[0038]

As described in detail above, according to the present invention, a printed product having excellent sharpness and printing quality can be obtained and is extremely useful. Further, when printing, there is no need for a screen frame or the like in conventional general printing, and it is possible to produce a large number of small lots and to quickly respond to diversification of fashion. In addition, the transfer method, which has conventionally been limited to the heat sublimation dye, can also use a water-soluble dye, and has a great advantage that it can be applied to various materials.

Further, since the transfer rate is high, a high density printed product can be obtained, the transfer paper can be reused, and there are effects of cost reduction and resource saving.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display part D21H 27/00

Claims (4)

[Claims] 1. A transfer paper having a release layer on one side, and further having a coating layer composed of a sizing agent and a pressure-sensitive adhesive on the outer layer, wherein the coating layer side of the transfer paper and the cloth are combined. A transfer paper, characterized in that the transfer rate of the sizing agent and the pressure-sensitive adhesive to the fabric is 98 to 100% when both are pressure-bonded at 1 to 4 kg / cm ² . 2. The transfer paper according to claim 1, wherein the release layer is made of silicone resin, fluororesin, or polyolefin resin. 3. A release layer is provided on one side surface, and a coating layer composed of a sizing agent and a pressure-sensitive adhesive is further provided on the outer layer thereof, and the coating layer side and the cloth are combined in an amount of 1 to 4 kg /
A printing method using a transfer paper having a transfer ratio of a sizing agent and a pressure-sensitive adhesive to a fabric when pressure-bonded at cm ² of 98 to 100%,
A dye ink is applied onto an endless belt having a smooth surface and an impermeable surface by an inkjet method, and then the dye ink on the endless belt is absorbed by the coating layer side of the transfer paper, and after removing the solvent, the coating layer of the transfer paper. The printing method is characterized in that the side and the cloth are put together and pressure-bonded to each other, the sizing agent and the adhesive which have absorbed the dye ink in the coating layer of the transfer paper are transferred to the cloth, and then the color is developed. 4. A release layer is provided on one side surface, and a coating layer composed of a sizing agent and a pressure-sensitive adhesive is further provided on the outer layer of the release layer.
Dye ink is applied by an ink jet method to the coating layer side of the transfer paper, which has a transfer rate of the sizing agent and the adhesive agent to the fabric of 98 to 100% when pressure-bonded with cm ² , and after removing the solvent,
A printing method characterized in that the coating layer side of the transfer paper and the cloth are put together and pressure-bonded to each other, and the sizing agent and the adhesive which have absorbed the dye ink in the coating layer of the transfer paper are transferred to the cloth, and then color is developed. Law.