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

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...

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.

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