TWI473920B - Treatment coating for substrate of printing transfer paper - Google Patents

Description

Base paper treatment coating for inkjet printing transfer printing paper

The invention relates to printing and dyeing engineering in the textile industry, in particular to a base paper processing coating for inkjet printing transfer printing paper.

Transfer printing paper transfer has become a new method for daily industrial decoration and textile printing. It is a printing method to print a suitable dye ink and print the pattern or text to be printed on special paper into a transfer printing. Paper, the dyed side of the transfer printing paper is then adhered to the printed fabric, and the dye ink is detached and peeled off from the paper by pressure, and the pattern or text on the transfer printing paper is transferred onto the fabric.

Commonly used transfer printing methods can be divided into dry transfer method, namely thermal transfer method and pressure sensitive transfer method; and wet transfer method, namely cold transfer stripping and solvent transfer stripping method. The earliest transfer printing method patent was applied in 1958. Since then, after more than eight years, it was barely put into production in 1968. This is a sublimation hot melt transfer printing process invented by Sublistatic. According to the British "Dyeing Association Association" in 1971 and Japan's "Processing Technology" 1972 "Transfer Printing" album, the general sublimation method transfer printing, the transfer of dye from transfer printing paper to the fabric, can not be fully absorbed by the fiber There is always a part of the dye remaining on the surface of the fabric and the paper base, which is the main reason for the low color yield of the transfer printing process and the poor color fastness of the printed fabric. Tests have shown that there are 139 dyes that can sublimate at 200 ° C or below, but only 39 dyes can be used to transfer printing paper. Manufactured, while nearly 20%-30% of the dye remains on the paper base after transfer printing. Therefore, in the years to come, the biggest concern for transfer printing is how to minimize the residual dye on the paper base, which is beneficial to save costs and help to solve the environmental pollution of dye residues. A wet transfer printing process was invented. The sublimation transfer printing process can only process some synthetic fabrics, especially polyester fabrics, and only the natural fibers such as cotton, wool and silk, and various regenerated cellulose fibers can only be processed by wet transfer printing. In order to transfer the dye sufficiently from the transfer printing paper, a transfer layer or a release layer is applied to the paper base, such as a hot melt transfer type separation layer described in Japanese Patent No. 22094, 1970, which has a formula of 100. 30 parts of % phenol resin, 3 parts of ethyl cellulose, 15 parts of heavy calcium carbonate, 15 parts of porcelain clay, 37 parts of ethyl acetate, and formulated into 100 parts. In recent years, the technology of cold transfer printing paper suitable for natural fiber fabrics has developed rapidly, such as the patent number “99812635.7” applied by Danish Hong Kong Co., Ltd., entitled “The ammonia carrier used in the transfer method, and the non- The application of crystal syrup in the dispersion of coated paper", and the patent number "200610026581.1" applied by Shanghai Changsheng Textile Products Co., Ltd., titled "Pigmenting agent for cold transfer printing paper" and other invention patents, in transfer Good results have been achieved.

Inkjet printing is a printing technique that is slowly transformed from inkjet text printing, so inkjet printing and textiles are highly correlated. Ink-jet Printing was first introduced in 1878. Until 1951, Siemens applied for a patent for converting liquid ink into ink droplets. By 1964, it borrowed. A special machine can control the size of the ink droplets and the rate of ejection to form the prototype of the inkjet machine. In 1967, Hertz developed a continuous inkjet printer, which formed the inkjet printer currently used in industry. . Inkjet printing is a new type of digital application technology. It is a method of printing a file on a computer inkjet printer. The dye ink is directly printed on the textile according to the design pattern of the computer, thereby realizing inkjet printing. The inkjet printing process has many advantages, such as fast printing process, convenient flower pattern change, realistic pattern, convenient use, and can adapt to the current small batch and multi-variety printing process. However, inkjet printing also brings some shortcomings, mainly due to the high cost of printing. The maintenance of inkjet printing heads in inkjet processes is difficult, and inkjet printing is not suitable for mass production. The current transfer printing technology is a transfer method using transfer printing paper, which has the advantages of environmental protection and energy-saving printing, and is a new printing technology with promotion value. However, the transfer printing sample process also adopts a relatively traditional method, which requires the same method as the conventional printing sample, such as pattern design, plate making, engraving, etc., and then prints the dye ink on the transfer paper with a printing machine, and then transfers to On textiles, large samples can only be printed after confirmation by the customer. Since cold transfer printing samples suitable for natural fibers only require a very small amount of printed fabric, the use of conventional printing samples results in high cost, time consuming and energy consuming. Therefore, if a sample can be printed by a combination of inkjet printing and transfer printing, it can save cost and be efficient and fast. However, the inkjet printing technology currently used can only be printed directly on textile fabrics. If inkjet printing is used, it should be printed on the base paper to transfer the printing paper and then transferred to the fabric, but there are still many Difficult to adapt to the cold transfer printing process requirements. The main problem with inkjet printing transfer printing paper is that the existing inkjet printing ink and its inkjet printing process cannot adapt to the transfer printing. The flowering process requires that even if there is an inkjet printing ink suitable for transfer printing, it can be printed as a transfer printing paper, but the transfer effect of such a transfer printing paper is still very poor. In order to achieve practical requirements for inkjet printing transfer printing paper, the base paper also needs to be treated with a barrier coating, which is not achieved according to the currently known barrier coating. Because the base paper coated with such a currently known release coating is printed, the pattern printed by the inkjet printing ink does not immediately dry and spreads out on the paper, failing to form a practical transfer printing paper, or causing a print pattern. Transfer printing paper with severely deformed patterns.

Therefore, only the coating for isolation is not enough, and then it is necessary to process the coating as an ink-receiving ink so that the ink-jet printing ink can be printed on the base paper, and it is possible to become a qualified ink-jet transfer printing paper. And can be transferred to the fabric smoothly during transfer.

In order to solve the practical problem of inkjet printing cold transfer printing paper, it is necessary to pretreat the base paper of the inkjet printing transfer printing paper, and recoat the two processing layers for the isolation and the ink receiving function. However, the currently known release coatings have not been able to achieve such a purpose, and there is no ready-made product for the ink receiving layer that functions as an ink carrier. Therefore, the present invention provides a base paper treatment coating for inkjet printing transfer printing paper, according to the process requirements of the transfer printing, pretreating the base paper of the inkjet printing transfer printing paper, and coating the isolation and the ink receiving The two treatment layers can print practical cold transfer printing paper and transfer the dye ink pattern on the transfer printing paper to various textile fabrics.

In order to solve the technical problem of inkjet printing cold transfer printing paper, the present invention provides a base paper processing coating for inkjet printing transfer printing paper. The treatment coating of the base paper for inkjet transfer printing of the present invention comprises a separation layer and an ink receiving layer. First coating amount of 6-15g / m ² of the fluorine-containing organic silicon or fluorine-containing acrylate polymer release layer, and then is applied in an amount of 5-18g / m ^2, a xanthan gum, modified starch, and carboxymethylcellulose The ink-receiving layer is composed of a two-layered treatment coating. According to requirements, the base paper of the inkjet printing transfer printing paper should be 50-120 g/m ² . The solution layer has a solution concentration (mass) of the fluorine-containing organic cerium or fluorine-containing acrylate polymer of 5% to 10%, and is coated by an anilox roll or a doctor blade. The ink-receiving layer is 0.3%-0.4% of the xanthan gum, 3%-5% of the modified starch, 9%-10% of the carboxymethyl cellulose (CMC), and 100% of the water. The solution is applied by an anilox roll or a doctor blade. The separator is a fluorinated modified polyoxyalkylene or perfluoroalkyl acrylate polymer having a coating amount of 6-9 g/m ² and is coated or coated with a solution having a concentration (mass) of 6% to 8%. Tu. The xanthan gum is of industrial grade; the modified starch is a dry powder, which is first used in a reactor of 60 ° C - 80 ° C aqueous solution for 5 hours to be matured into a liquid and used.

The base paper treatment coating of the inkjet printing transfer printing paper provided by the invention comprises a separation layer and an ink receiving layer, and the separation layer coated with the fluorine-containing organic germanium or fluorine-containing acrylate polymer solution enables the computer inkjet printer to The transfer printing paper composed of the dye ink printed on the base paper is a temporary combination, and can be smoothly peeled off and transferred onto the fabric during transfer with the fabric. At the same time, due to the coating of an ink-receiving layer composed of xanthan gum, modified starch and carboxymethyl cellulose, the dye of the computer inkjet printer The ink and the base paper of the release layer maintain a temporary combination, which solves the problem that the pattern printed by the dye ink spreads out on the paper surface, and can be combined with a part of the ink receiving layer when being bonded to the printed fabric. Smoothly peeled off and transferred to the fabric.

The beneficial effects of the base paper treatment coating of the ink jet printing transfer printing paper of the present invention are quite obvious. Firstly, it solves the problem that digital inkjet printers cannot print all kinds of transfer printing papers, and can quickly produce all kinds of transfer printing papers; the second method can realize the new process of transferring printing samples by using digital inkjet printer to print transfer printing paper. Not only saves money, but also improves the production time of transfer printing; the third is the method of printing transfer printing paper by digital inkjet printer can realize the requirement of fast delivery of small batch production of transfer printing.

Example 1

A base paper treatment coating for cold transfer printing paper, a base paper treatment coating for inkjet printing transfer printing paper suitable for cotton fabrics.

Base paper specification: 120g/m ² base paper is used.

The separator was applied to the base paper roll by a 155 mesh anilox roll, and the coating amount was 13-14 g/m ² . The separator is a fluorine-containing organic cerium polymer solution having a concentration (mass) of 9-10%.

Thereafter, the ink-receiving layer was applied to the base paper roll coated with the separator by a 180-mesh anilox roll, and the coating amount was 15-17 g/m ² . The ink-receiving layer used is 0.4% by mass of industrial grade xanthan gum, 5% of modified starch, 10% of carboxymethyl cellulose (CMC), and 100% solution of water. The modified starch is a dry powder, which should be aged into a liquid in a reaction vessel of an aqueous solution of 75 ° C for 5 hours before being used.

Example 2

A base paper treatment coating for cold transfer printing paper, a base paper treatment coating for ink jet printing transfer printing paper adapted to synthetic fiber fabric.

Base paper specification: 50g/m ² base paper is used.

The separator is coated on the base paper by a doctor blade coating method, and the coating amount is 6-7 g/m ² . The separator is a fluorine-containing acrylate polymer solution having a concentration (mass) of 5-6%.

Thereafter, the ink-receiving layer is applied to the base paper coated with the release layer by a doctor blade coating method, and the coating amount is 5-6 g/m ² . The ink-receiving layer used was 0.3% by mass of industrial grade xanthan gum, 3% of modified starch for modified starch, 9% by carboxymethyl cellulose (CMC), and 100% solution of water. The composite starch is a dry powder, which should be used after being aged into a liquid in a reaction vessel of an aqueous solution of 65 ° C for 5 hours.

Example 3

A base paper treatment coating for cold transfer printing paper, a base paper treatment coating for inkjet printing transfer printing paper adapted to viscose fiber fabric.

Base paper specification: 70g/m ² base paper is used.

The base paper roll was first coated with a 200 mesh anilox roll, and the coating amount was 8-9 g/m ² . The separator is a fluorinated modified polyoxyalkylene polymer solution having a concentration (mass) of 7 to 8%.

Thereafter, the ink-receiving layer was applied to the base paper roll coated with the separator by a 200-mesh anilox roll, and the coating amount was 8-9 g/m ² . The ink-receiving layer used is 0.35% by mass of industrial grade xanthan gum, 4% of modified starch is made of adhesive tape starch, 9% of carboxymethyl cellulose (CMC), and 100% solution of water. The adhesive tape starch is a dry powder, which should be used after being matured into a liquid in a reaction vessel of an aqueous solution of 70 ° C for 5 hours.

Example 4

A base paper treatment coating for cold transfer printing paper, a base paper treatment coating for inkjet printing transfer printing paper for cotton and wool fabrics.

Base paper specification: 90g/m ² base paper is used.

The separator is coated on the base paper by a doctor blade coating method, and the coating amount is 6-7 g/m ² . The separator is a perfluoroalkyl acrylate polymer solution having a concentration (mass) of 6-7%.

Thereafter, the ink-receiving layer is applied to the base paper coated with the release layer by a doctor blade coating method, and the coating amount is 9-10 g/m ² . The ink-receiving layer used was 0.35% by mass of industrial grade xanthan gum, 4.5% of modified starch was oxidized starch, 9.5% of carboxymethyl cellulose (CMC), and 100% solution of water. The oxidized starch is a dry powder, which should be used after being aged into a liquid in a reaction vessel of an aqueous solution of 75 ° C for 5 hours.

Claims (6)

A base paper treatment coating for inkjet printing transfer printing paper, comprising a separation layer and an ink receiving layer, wherein the separation layer is a fluorine-containing organic germanium or fluorine-containing acrylate polymerization having a coating amount of 6-15 g/m ² The ink-receiving layer is coated in an amount of 5-18 g/m ² and consists of xanthan gum, modified starch and carboxymethyl cellulose; the separator is coated on the base paper of the inkjet printing transfer printing paper, and then The ink receiving layer is coated to form a two-layered treatment coating. The base paper treatment coating of the ink jet printing transfer printing paper according to claim 1, wherein the base paper of the ink jet printing transfer printing paper is 50-120 g/m ² . The base paper treatment coating of the inkjet printing transfer printing paper according to claim 1, wherein the solution layer has a solution concentration (mass) of a fluorine-containing organic cerium or a fluorine-containing acrylate polymer of 5% to 10%. It is also coated with an anilox roller or a doctor blade. The base paper treatment coating of the inkjet printing transfer printing paper according to claim 1, wherein the ink receiving layer is in a mass percentage of 0.3% to 0.4% of the xanthan gum and 3% to 5% of the modified starch. The carboxymethyl cellulose is 9%-10%, and the water is used to constitute a 100% solution, and is coated by an anilox roll or a doctor blade. The base paper treatment coating of the inkjet printing transfer printing paper according to claim 1 or 3, wherein the release layer is a fluorinated modified polyoxane or perfluoroalkane having a coating amount of 6-9 g/m ² The acrylate polymer is roll coated or knife coated with a solution having a concentration (mass) of 6% to 8%. The base paper treatment coating of the inkjet printing transfer printing paper according to claim 1 or 4, wherein the xanthan gum is industrial grade; the modified starch is a dry powder, first at 60 ° C The reaction vessel of the -80 ° C aqueous solution was aged into a liquid for 5 hours and used.