JPH0436782A - Transfer and textile printing method utilizing electrostatic copying and printing method and releasing agent coating sheet used therein - Google Patents

Abstract

PURPOSE:To facilitate engraving and textile printing and to enhance fastness after textile printing by transferring toner on a releasing agent coating sheet to a fibrous structural substance and dissolving resin component with a fixing processing agent. CONSTITUTION:First, the releasing agent coating sheet is set on the paper supply part of a color copying machine and a pattern which is the mirror image of an original picture is formed by fixing the toner on the sheet, so that a transfer paper is obtained. Next, a thin cloth product where textile printing is executed is prepared and set in a hot press machine after the fixing processing agent is uniformly sprayed to a transfer section to such an extent that it permeates through. The transfer paper is set on a textile printing part so that the textile printing may be performed by executing press-heating. The transfer paper is peeled off from the cloth product immediately after pressing and a releasing paper is placed on the textile printing part to be press-heated again, then the pattern same as the original picture is formed on the cloth product.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a transfer printing method using electrostatic copying printing method,
The present invention relates to a mold release agent coated sheet used therefor.

[Prior art and technical issues to be solved] Many of the clothes are made of fiber structures, and because people wear clothes, the clothes need to be beautiful. They are also required to be beautiful.

Textile printing techniques are used to form complex patterns on such cloth products. Among these printing technologies, when used industrially, mechanical transfer printing is often used because it is profitable even with a relatively small printing lot. That's over 1,000 pieces. In addition, it requires expensive and large-scale equipment, and requires skill in printing. In addition, in paper pattern printing, etc., where printing is done by hand,
Printing in small quantities is profitable, but the work requires skill and the resulting products are expensive. In view of these problems in textile printing technology, conventional electrostatic copying printing methods are used to form patterns by placing toner on release paper coated with hot melt as a binder, and then transfer the toner that makes up the pattern together with the hot melt to fabrics. A method was proposed in which the image was transferred to a paper, heat-pressed, and then printed. However, in fabric products printed using this printing method, the toner adheres only to the surface of the fabric, resulting in low fastness.In particular, when ironing, the hot melt melts and the hot melt and toner adhere to the iron. Also, the fabric is hardened by the hot melt process.

The present invention was made in view of the above-mentioned drawbacks of the conventional technology, and does not require large-scale and expensive equipment, is easy to make plates, can be printed without requiring any skill, and can be printed in small commercial lots. The technical problem is to provide a printing method that is profitable, has high fastness after printing, does not impair the original texture of the fiber structure, and can be ironed.

[Means adopted to solve the problem]

The means adopted by the inventor to solve the problem are as follows.

That is, the toner is made to form a copy pattern or characters on the release agent coated sheet by electrostatic printing method,
This copied pattern or characters are transferred onto the fiber structure, and the fixing agent is used to dissolve the resin attached to the toner, allowing the toner and resin to penetrate into the fibers, and while applying pressure and heat to vaporize the volatile components. By adopting a method of fixing the toner by welding resin to the fibers, it is easy to make plates with simple equipment and requires no skill, and is profitable even with a small loft.After printing, the dyed pattern or letters are durable. To provide a printing method that allows cloth products to be ironed without losing their original texture.

Furthermore, a release agent-coated sheet usable for the above-mentioned textile printing was obtained by applying a toner retention agent to paper coated with a release agent.

〔Example〕

Hereinafter, the present invention will be explained based on examples.

Example (1) First, a release agent coated sheet (described later) is set in the paper feed section of a color copier, an original is set in a predetermined position, and an inverted copy is performed to place the toner on the release agent coated sheet. A pattern is created that is a mirror image of the original image, and a transfer paper is obtained. At this time, the resin contained in the toner is fused to the sheet surface due to the heat generated by the copy machine, and the toner is also fixed. However, since the sheet surface is coated with a release agent, the resin and toner are Easily peels off. Here, a thin fabric (100% polyester fabric) to be printed is prepared, a fixing agent is sprayed onto the fabric to evenly permeate the transfer area, and the fabric is set in a hot press. A transfer paper is installed in the printing section, and printing is performed by applying pressure and heat using a hot press machine. It shall be pressed strongly for 5 to 8 seconds at a temperature of around 160°C. Immediately after pressing, peel off the transfer paper from the fabric product, place release paper (silicon paper) on the printing area,
Pressure heat again. At this time, at a temperature of around 160℃
It shall be pressed for 5 seconds. The printing process is now complete, and the same pattern as the original image is created on the fabric.

The mold release material coating sheet used in Example (1) was obtained as follows. That is, using a release paper whose one side is thinly coated with silicone, a toner retaining agent is applied to the back side of the coated side by silk screen printing. Thereafter, the release paper is dried at a temperature from room temperature to 40°C. However, the toner retention agent is Coverage Coat 8: Toluene 1: Epoxy resin 1
It is mixed in the ratio of

According to Example (1), the release agent coated sheet is thinly coated with silicone, so that during copying,
The toner adheres well. In addition, the toner holding agent layer formed on the back side of the coated surface passes through the thin silicone layer and has the effect of holding toner and improving toner adhesion during copying.
During textile printing, it has the effect of liberating toner by heating.

This provides an ideal method for printing thin fabrics.

Example (2) A release agent coating sheet, which will be described later, is set in the paper feed section of a color copying machine, and a transfer paper is obtained in the same manner as in Example (1). Prepare a thick cloth product (100% cotton fabric) to be printed, set it in a hot press machine, place transfer paper in the printing section, apply pressure heat, and perform transfer printing. Press strongly for 8 to 10 seconds at a temperature of around 160°C. After pressing, let it cool for a few seconds, then peel off the transfer paper from the fabric, and spray the fixing agent evenly over the transfer area.
Place release paper on the transfer area, apply pressure again, and dye. It shall be pressed for about 3 seconds at a temperature of around 160°C. If necessary, good printing can be obtained by repeating the process of spraying the fixing agent, placing it on a release paper, and pressing and heating it.

The method for obtaining the release agent coated sheet used in Example (2) is as follows. That is, using a release paper coated with silicone on one side, a toner retaining agent is applied to the coated surface by silk screen printing.

Thereafter, the release paper is dried at a temperature from room temperature to 40°C.

However, the toner retention agent is a coverage coat.

According to Example (2), the toner retention agent layer of the coverage coat coating layer provided on the release agent coating sheet retains the toner well during copying and retains the toner during transfer printing. By peeling it off from the release paper and adhering to the surface of the fabric product, it can be printed and dyed well even on fabric products with uneven surfaces, and can also act as a binder to improve dyeing fastness. Also, when spraying the fixing agent, the resin and coverage coat can dissolve and penetrate into the fibers, so if the fabric product is thick and the resin and coverage coat do not penetrate sufficiently,
It is best to repeat the process of spraying the fixing agent, placing it on release paper, and applying pressure and heat. Example (2) is a printing method suitable for thick cloth products, but can also be effectively printed on fiber structures other than non-clothing materials such as toweling, synthetic leather, and wallpaper.

In this example, the fixing agent is a mixture of 4 parts benzyl alcohol and 6 parts ethanol. Benzyl alcohol is used in pharmaceuticals and cosmetics and is harmless to the human body and can be easily disposed of, and ethanol was also used because it is harmless to the human body.

Although this embodiment is configured as described above, the present invention is not limited to this embodiment, and various modifications can be made within the scope of the claims. In particular, modifications such as performing textile printing without inverted copying using a mirror image original, and using a two-color copying machine instead of a color copying machine are also included within the scope of the present invention.

[Test] The dyeing solidity of the 100% polyester fabric transfer print obtained in Example (1) and the 100% cotton fabric transfer print obtained in Example (2) was tested at the Fukui Industrial Technology Center. As a result, the following results were obtained.

Light test Example (1)...Grade 4.

Example (2)...Grade 5.

washing test Example +1)...Discoloration and fading grade 4, Cotton pollution level 5, polyester pollution level 5.

Example (2)...Class 4 discoloration and fading, Cotton pollution level 5, polyester pollution level 5.

However, the light emitting test method was irradiation with a fetometer for 25 hours according to the third exposure method of JIS LO842, and the washing test method was according to the JIS LO844A-2 method.

[Effects of the present invention]

As explained above using the examples, the transfer printing method according to the present invention does not require large-scale and expensive equipment;
Plate making is easy, anyone can do it without any skill, and it is profitable even with a small loft. Also, the test results clearly show that the color fastness is high. This is because the toner penetrates into the fibers and dyes them.

Furthermore, since the toner is not attached to the surface of the cloth product, the toner will not come loose even when ironed.

In addition, in Example +11, no binder other than the resin contained in the toner was used, so the original texture of the cloth product was not impaired, and in Example (2), the main component of the coverage coat was As a binder, the acrylic ester does not impair the flexibility of cloth products.

Further, as is clear from the Examples, the release agent coated sheet of the present invention is suitable for carrying out the textile printing of the present invention.

As described above, the transfer printing method using the electrostatic copying printing method of the present invention and the release agent coated sheet used therein have high industrial utility value.

Claims (3)

[Claims] (1) Using the electrostatic copying method, toner is placed on a release agent coated sheet to form a copied pattern or characters, and the toner forming the copied pattern or characters is transferred onto a fibrous structure. , the resin attached to the toner is dissolved with a fixing treatment agent containing a volatile organic solvent, the toner and resin are infiltrated into the fibers, and the resin is welded to the fibers while being pressurized to vaporize the volatile components. A transfer printing method that utilizes electrostatic copying printing, which is characterized by fixing toner using a method of printing. (2) A release agent-coated sheet comprising a release paper coated with a release agent on at least the portion of one side to which toner is to be attached, and the back side of the coated side coated with a toner retention agent. (3) A release agent-coated sheet comprising a release paper coated with a release agent on at least one side of which the toner is to be attached, and the coated surface of which is coated with a toner retention agent.