Heat transfer printing disperse color paste and preparation method thereof, and heat transfer printing ink and preparation method thereof

A technology of thermal transfer printing and color paste, applied in transfer printing, dyeing, printing, etc., can solve the problems of operator and environmental damage, thermal transfer ink is easy to age, and a large amount of white smoke is easy to produce, so as to improve grinding Efficiency, good nozzle moisturizing performance, and the effect of improving the service life

Active Publication Date: 2021-06-04
TRENDVISION TECH(ZHUHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermal transfer ink is generally obtained by mixing thermal transfer disperse color paste, additives and solvents. Thermal transfer disperse color paste is mainly made of thermal transfer disperse dyes and dispersants. Thermal transfer disperse dyes and organic pigments are not Similarly, the molecular weight and particle size of organic pigments are much larger than thermal transfer disperse dyes, so it is difficult for the dispersant suitable for organic pigment color paste to obtain good results in thermal transfer disperse color paste in this field. There are fewer types of dispersants used in thermal transfer dispersion color paste, and the most commonly used dispersant is sodium lignosulfonate
However, the thermal transfer ink prepared by using sodium lignosulfonate is easy to age, and it is easy to produce a lot of white smoke when the ink is colored, and the smell is strong, which will cause great harm to the operators and the environment.

Method used

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  • Heat transfer printing disperse color paste and preparation method thereof, and heat transfer printing ink and preparation method thereof
  • Heat transfer printing disperse color paste and preparation method thereof, and heat transfer printing ink and preparation method thereof
  • Heat transfer printing disperse color paste and preparation method thereof, and heat transfer printing ink and preparation method thereof

Examples

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preparation example Construction

[0028] In the present invention, the preparation method of the dispersant preferably comprises the following steps:

[0029] The dispersant is obtained by mixing benzyl methacrylate, methacrylic acid salt, an initiator and a solvent, and reacting under an inert atmosphere.

[0030] In the present invention, the operating process of the reaction is specifically preferably:

[0031] Mix benzyl methacrylate with the first part of organic solvent to obtain premix A; mix potassium methacrylate, the first part of water and the second part of organic solvent to obtain premix B; mix the first part of initiator and the third part Mixing organic solvents to obtain premix C; mixing the remaining initiator with the fourth part of organic solvent to obtain premix D;

[0032] Add the remaining water and the remaining organic solvent into the reaction device, and then pass inert gas, then add the premix A, premix B and premix C into the reaction device for reaction, after 3-4 hours of react...

Embodiment 1～4

[0066] The thermal transfer disperse color paste was prepared by using the above dispersant, and the mass fraction of the thermal transfer disperse dye in the color paste was 20%. The formulas of the thermal transfer disperse color paste in Examples 1-4 are shown in Table 2.

[0067] The preparation method of thermal transfer dispersion color paste is as follows: mix the raw materials to obtain the color paste dispersion liquid, inject the color paste dispersion liquid into a ceramic sand mill for grinding, use zirconium beads as abrasive particles in the grinding, and the particle size of the grinding particles is 0.05 ~0.2μm, the D of the milled paste 50 Controlled at 50~150nm, D 99 The particle size is controlled at <400nm. After reaching this standard, the material is filtered to obtain thermal transfer dispersion color paste. The specific particle size of the color paste and the grinding time required to reach the grinding end point are shown in Table 2.

Embodiment 5～8

[0075] The thermal transfer printing inks prepared in Examples 1-4 were respectively used to prepare thermal transfer printing inks, and the formulations of the thermal transfer printing inks prepared in Examples 5-8 are shown in Table 3.

[0076] The preparation method of thermal transfer printing ink is as follows: add deionized water, humectant, surfactant, defoamer, and bactericide in order, stir at room temperature 200rpm for 15 minutes, mix well, add thermal transfer dispersion color paste, and stir for 1 hour. Filter through a PVDF membrane with a pore size of 1.0 μm to obtain thermal transfer ink.

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Abstract

The invention relates to the technical field of heat transfer printing, and provides heat transfer printing disperse color paste and a preparation method thereof, and heat transfer printing ink and a preparation method thereof. The heat transfer printing disperse color paste provided by the invention comprises the following components of a dispersing agent, a heat transfer printing disperse dye, a humectant, a surfactant, a bactericide and water, wherein the dispersing agent is prepared from benzyl methacrylate, methacrylate, an initiator and a solvent. The dispersing agent used in the color paste is high in thermal cracking temperature, cannot be gasified at the working temperature of heat transfer printing and is good in dispersing performance, the stability of the color paste can be improved, and the heat transfer printing ink prepared from the color paste is not prone to aging and cannot generate white smoke and smell during heat transfer printing. The invention also provides the heat transfer printing ink. The heat transfer printing ink provided by the invention is colorless and odorless in color development process, good in smoothness, high in printing quality and good in nozzle moisturizing performance.

Description

technical field [0001] The invention relates to the technical field of thermal transfer printing, in particular to a thermal transfer dispersion color paste and a preparation method thereof, and a thermal transfer printing ink and a preparation method thereof. Background technique [0002] Thermal transfer printing technology is a new printing technology. Thermal transfer printing is divided into two steps: transfer film printing and transfer printing processing. Processing transfers the pattern on the transfer film to the surface of the product. With the rapid development of high technology, thermal transfer technology is more and more widely used. At present, the thermal transfer process is suitable for the transfer of cloth and the transfer of coated hard objects. The fabrics are mainly polyester and polyester cotton, and the hard items are mainly high-temperature-resistant items, such as film, metal, glass, porcelain, porcelain cups, PVC, etc. The transfer of the imag...

Claims

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Application Information

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IPC IPC(8): D06P1/16D06P5/26D06P5/30D06P1/52D06P1/651
CPCD06P1/16D06P5/003D06P5/30D06P1/5257D06P1/65118
Inventor 李鑫张云杰刘明辉
Owner TRENDVISION TECH(ZHUHAI) CO LTD
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