KR100202534B1 - Color copy ink of printing and it's application for printing method - Google Patents

Abstract

The present invention is a dispersion dye 25 ~ 35wt%, solid synthetic resin 30 ~ 40wt%, water soluble oil 3 ~ 7wt at%, surfactant 1 ~ 5wt%, sodium hydroxide 1 ~ 3wt%, chloroform 3 ~ 7wt% and distilled water 15 A color transfer ink for printing is composed of ˜25 wt%, but a dispersion dye and a solid synthetic resin are mixed and pulverized, dissolved in chloroform, and mixed with sodium hydroxide, a water-soluble oil, a surfactant, and distilled water. Using this method, a computer inkjet printer outputs various designs, colors, and images on a general paper, and then prints the printed object coated with a coating material such as epoxy resin or acrylic resin, and prints it by heating and transferring it. To a method of printing, the use of dedicated transfer paper, the low adhesion rate, the decomposition of organic solvents, the limitation of the applied product, Not only does it solve the limitations of various colors and designs, but it also solves the problems of water pollution, human hazards, high cost of work process, high wages, and can produce large quantities, so it can be used to produce industrial machine nameplates, indoor and outdoor milestones, indoor signs. There is an effect that can be widely used, such as nameplates, nameplates.

Description

Printing color transfer ink and printing method using the same

The present invention relates to a color transfer ink for printing and a printing method using the same, more specifically, 25 to 35 wt% of a disperse dye, 30 to 40 wt% of a solid synthetic resin, 3 to 7 wt% of a water-soluble oil, and 1 to 5 surfactants. A color transfer ink for printing is composed of wt%, 1 to 3 wt% of sodium hydroxide, 3 to 7 wt% of chloroform and 15 to 25 wt% of distilled water, mixed with a disperse dye and a solid synthetic resin, pulverized, dissolved in chloroform, and dissolved in sodium hydroxide. Color transfer ink for printing by adding and mixing with water-soluble oil, surfactant, and distilled water, and using it to print various designs, colors, and images on plain paper with computer inkjet printer, and then coating with epoxy resin, acrylic resin, etc. The present invention relates to a printing method in which a printing object coated with a material is placed in a position to be printed and heated and transferred.

As a printing method, various methods are known according to the applied product to be printed, and the printing ink used according to the printing method and the applied product is also variously changed.

For example, when printing on textile paper such as T-shirts, a method of printing letters, figures, drawings, etc. using a computer, printing with a color printer using water-based pigment ink on a dedicated transfer paper, and then transferring to an applied product is used. For printing on steel sheets, plastics, etc., a silk screen printing method comprising a process of drawing, film output, typesetting, application of photoresist to mesh, drying, photosensitive plate, washing, drying, printing, and post-treatment is used.

In addition, when printing on aluminum or for printing on a mechanical nameplate, an anodizing printing method comprising mechanical pretreatment, degreasing treatment, acid washing, anodic oxidation, dyeing, sealing, and post treatment is used. When printing on metals such as stainless steel, copper, and the like, a method of corrosive printing is used, which includes a process of film work, engraving, printing, drying, corrosion (ferric chloride), ink removal, and surface polishing.

However, the transfer printing method using water-based pigment ink has to use a dedicated transfer paper for printing, and can be applied only to T-shirts, banners, cloths, papers, etc. and thus has limitations in the materials used. It is fragile and has the disadvantage of discoloring and decomposing organic solvents, and the silkscreen printing method has a lot of work processes such as film manufacturing, photoresist coating, drying, washing with water, and the use of toxic organic solvents in the production of silkscreen printing ink. It is harmful to water and causes water pollution due to washing and degreasing work, and the complicated work process requires excessive time and labor. There is a problem in that there is a limit in design, such as color rendering, color photography.

In addition, the corrosion printing method not only has the same problems as the silkscreen printing method but also has the disadvantage of polluting the water quality because ferric chloride is used as the corrosion solution, and the anodizing printing method has a similar disadvantage as the silkscreen printing method. Alloys, sulfuric acid treatment, etc. during the work process has the disadvantage of contaminating the water quality.

SUMMARY OF THE INVENTION An object of the present invention is to provide a color transfer ink for printing that can use plain paper without using a dedicated transfer paper, has excellent adhesion, does not decompose into an organic solvent, and can print any product.

Still another object of the present invention is to provide a method for producing a color transfer ink for printing of the above object.

Another object of the present invention is to provide a printing method using the color transfer ink for printing of the above object.

In order to achieve the above object as well as another object that can be easily expressed in the present invention, 25 to 35 wt% of a disperse dye, 30 to 40 wt% of a solid synthetic resin, 3 to 7 wt% of a water-soluble oil, and 1 to 5 wt of a surfactant. %, Sodium Hydroxide 1-3 wt%, Chloroform 3-7 wt% and 15-25 wt% distilled water to form a color transfer ink for printing. Disperse and mix with disperse dye and solid synthetic resin, dissolve with chloroform, A color transfer ink for printing is prepared by adding and mixing a water-soluble oil, a surfactant, and distilled water, and using this, a computer inkjet printer outputs various designs, colors, and images on a general paper, and then a coating material such as an epoxy resin or an acrylic resin. Use of transfer paper, which is a disadvantage of the conventional transfer printing, by placing the printed object coated with the printing target on the position to be printed by heating and printing Adhesion rate of decomposition, the limits of applicable products of the organic, was able to solve the limitations of the various colors and designs.

The present invention is described in more detail as follows.

The color transfer ink for printing of the present invention is 25 to 35 wt% of a disperse dye, 30 to 40 wt% of a solid synthetic resin, 3 to 7 wt% of a water-soluble oil, 1 to 5 wt% of a surfactant, 1 to 3 wt% of sodium hydroxide, and 3 to chloroform. And 7 to 15 wt% of distilled water.

In addition, the color transfer ink for printing of the present invention is prepared by mixing and pulverizing a disperse dye and a solid synthetic resin, dissolving it in chloroform, and adding sodium hydroxide, a water soluble oil, a surfactant, and distilled water to mix the same.

In addition, the printing method according to the present invention uses a color transfer ink for printing prepared with the composition as described above, after outputting a variety of designs, colors, images on a plain paper with a computer inkjet printer, coating the epoxy resin, acrylic resin, etc. It is characterized in that it is placed in a position to be printed on a printing object coated with a material and is heated and transferred.

The disperse dyes used in the present invention are for the color expression of the ink and all the disperse dyes used for dyeing hydrophobic synthetic fibers can be used, and those skilled in the art according to the present invention Specific dispersion dyes may be readily selected and used.

The amount of the disperse dye used is most preferably 25 to 35wt%. When the amount is less than 25wt%, the color of the printing ink is insufficient, and when the amount is more than 35%, the brightness of the ink to be prepared is lowered.

As the solid synthetic resin, at least one of ester gum, modified phenolic resin, modified alkyd resin, maleinated rosin and cellulose derivative can be selected and used, and the most suitable solid synthetic resin is selected through repeated experiments according to the applied product to be printed. Can be used.

It is preferable to use 30 to 40 wt% of solid synthetic resin as a component which disperse dye in printing ink and settle it thereon and fix dye on the printing surface. And when there is a problem that the adhesion is poor, when the content exceeds 40wt% is not economically because the addition synergistic effect is weak, there is a difficulty in using the high viscosity of the ink to be produced.

Water-soluble oils also serve to disperse and fix dyes, and unlike solid synthetic resins, it is preferable to use 3 to 7 wt% to improve ink fluidity, and when the amount is less than 3 wt%, dispersibility and adhesion of dyes And there is a disadvantage in that the fluidity of the ink to be prepared is not good, and if it exceeds 7wt%, the synergistic effect of the addition is weak and not economical as well as a disadvantage that the drying speed of the printed ink is slow.

As the water-soluble oil, all of the water-soluble oils commonly used in the technical field of the present invention can be used, and in particular, are classified into mineral oil, dry oil, semi-dry oil and undry oil, vegetable oil, dehydrated castor oil, alkyd oil and re-esterified oil. Synthetic dry oil and the like can be used.

Surfactants improve permeability between dyes and solid resins and water-soluble oils, prevent dye particles from coming into direct contact with each other, reduce flow resistance, lower the yield value of ink, and improve their sharpness. It is used for emulsifiers, dispersants, penetrants, solubilizers, gloss agents, softeners, antistatic agents, and can be selected according to the type of printing surface and used as cationic surfactants, anionic surfactants, amphoteric surfactants, and nonionic surfactants. Any surfactant commonly used in the art to which the present invention pertains may be used.

The amount of the surfactant is preferably 1 to 3wt%, and when the amount is less than 1wt%, the permeability of the ink to be prepared is not good, the role as other additives is weak, and when the amount is more than 5wt%, the synergistic effect of addition is weak. Not economical

Sodium hydroxide is used to dissolve a portion of the coating layer coated on the printing surface to easily fix the dye of the printing ink, it is preferable to use 1 to 3wt%, when the amount is less than 1wt% of the dye of the printing ink There is a problem in that the adhesiveness is lowered, and when it exceeds 3wt%, there is a disadvantage that the coating layer of the printing surface is so dissolved that the printing is not clear.

Chloroform is used as a solvent for dissolving disperse dyes and solid synthetic resins. It is preferable to use 1 to 5 wt%. When the amount of the chloroform is less than 1 wt%, dissolution of the disperse dyes and solid synthetic resins is not performed completely. Not only is uniform color development difficult, it is not easy to prepare the ink, and it is not economical when it exceeds 5 wt%.

Distilled water is added to the aqueous ink to prepare the ink of the present invention, the amount of use may be changed by the object of use, method of use, etc., which can be easily recognized by those skilled in the art. Although it is possible to use, it is preferable to use 15-25 wt%.

When the amount of distilled water is less than 15wt%, but not all cases, the viscosity is high, so it is difficult to use, and there is a problem that the water solubility is not satisfactory.

The color transfer ink of the present invention is first mixed with a disperse dye and a solid synthetic resin, pulverized, dissolved in chloroform, and added with sodium hydroxide, a water-soluble oil, a surfactant, and distilled water, using a softener such as a three-stage roller or a disperser such as a bowl mill. Prepared by dispersing uniformly.

Mixing and dispersing the disperse dye and the solid synthetic resin and dissolving them into chloroform do not cause any problem even if they are performed in reverse order.

Printing is performed using the ink prepared in the above manner, but printing is performed after the coating layer is formed on the surface of the application target product to be printed. In other words, the surface of acrylic, aluminum, iron plate, copper plate, stainless steel plate, plastic, wood, textile paper is coated with synthetic resin such as epoxy resin, urethane resin, acrylic resin, ester resin, but it adheres best to the surface of the product. Resin is selected and a coating is performed by a normal method.

However, plastics such as acrylic do not necessarily need to be coated, and products such as wood and textile paper, which have high absorption rates, do not necessarily need to be coated.

After forming a coating layer on the surface of the product to be printed as described above, using a color transfer ink of the present invention to output a variety of designs, colors, images on a plain paper with a computer inkjet printer, and then coating with epoxy resin, acrylic resin, etc. Printing is completed by placing the printed object coated with the material on the position to be printed by heating and transferring.

The heating temperature may vary depending on the characteristics of the product to be printed, but heating is preferably carried out as high as possible as long as no modification of the product to be printed occurs.

The present invention is a dispersion dye 25 to 35 wt%, solid synthetic resin 30 to 40 wt%, water-soluble oil 3 to 7 wt%, surfactant 1 to 5 wt%, sodium hydroxide 1 to 3 wt%, chloroform 3 to 7 wt% Color transfer ink for printing is composed of 15-25 wt% of distilled water, which is mixed with a disperse dye and a solid synthetic resin, pulverized, dissolved in chloroform, and mixed with sodium hydroxide, a water-soluble oil, a surfactant, and distilled water. Using this method, a computer inkjet printer outputs a variety of designs, colors, and images on plain paper, and then transfers them by placing them on a printing target coated with a coating material such as epoxy resin or acrylic resin, and heating them. By using printing, the use of dedicated transfer paper, which is a disadvantage of conventional transfer printing, low adhesion rate, decomposition of organic solvent, limitation of applied products, various colors and colors It is not only effective to solve the limitation of phosphorus, but also can solve the problems of water pollution, human hazard, high cost of work process, high wage, and can produce large quantity, so it can be produced on industrial machine nameplate, indoor and outdoor milestone, indoor signage, nameplate, nameplate There is an effect that can be widely used, such as.

Claims (4)

Disperse dyes 25 to 35 wt%, solid synthetic resins 30 to 40 wt%, water-soluble oils 3 to 7 wt%, surfactants 1 to 5 wt%, sodium hydroxide 1 to 3 wt%, chloroform 3 to 7 wt% and distilled water 15 to Color transfer ink for printing, characterized by consisting of 25 wt%. A process for producing a color transfer ink for printing, characterized in that the disperse dye is mixed with a solid synthetic resin, pulverized, dissolved in chloroform, and mixed with sodium hydroxide, a water-soluble oil, a surfactant, and distilled water. Disperse dyes 25-35 wt%, solid synthetic resin 30-40 wt%, water-soluble oil 3-7 wt%, surfactant 1-5 wt%, sodium hydroxide 1-3 wt%, chloroform 3-7 wt% and distilled water 15- Use color transfer printing consisting of 25 wt%, print out various designs, colors, and images on plain paper using a computer inkjet printer, and then transfer the transfer by placing the printed object coated with a coating material of synthetic resin. Print method characterized in that. 4. The printing method according to claim 3, wherein the heating temperature is equal to or lower than a temperature at which denaturation of the print object occurs.