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A thermal transfer dispersion color paste and its preparation method and thermal transfer ink and its preparation method

A thermal transfer and color paste technology, applied in transfer printing method, dyeing method, printing and other directions, can solve the problems of operator and environmental damage, thermal transfer ink is easy to age, difficult to obtain good results, etc., to improve grinding efficiency , good nozzle moisturizing performance, improve the effect of service life

Active Publication Date: 2022-06-21
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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  • A thermal transfer dispersion color paste and its preparation method and thermal transfer ink and its preparation method
  • A thermal transfer dispersion color paste and its preparation method and thermal transfer ink and its preparation method
  • A thermal transfer dispersion color paste and its preparation method and thermal transfer ink and its preparation method

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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, methacrylate, initiator and solvent, and reacting under an inert atmosphere.

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

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

[0032] The remaining water and the remaining organic solvent are added to the reaction device, then the inert gas is introduced, and then the premixed solution A, the premixed solut...

Embodiment 1～4

[0066] The thermal transfer disperse color paste is prepared by using the above dispersant, and the mass fraction of thermal transfer disperse dyes in the color paste is all 20%.

[0067] The preparation method of the thermal transfer dispersion color paste is as follows: mixing the raw materials to obtain a color paste dispersion liquid, injecting the color paste dispersion liquid into a ceramic sand mill for grinding, using 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 color paste 50 Controlled at 50~150nm, D 99 The particle size is controlled at <400nm. After reaching this standard, the material is discharged and filtered to obtain a 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 inks were prepared by using the thermal transfer dispersion colorants of Examples 1 to 4, respectively. The formulations of the thermal transfer inks prepared in Examples 5 to 8 are shown in Table 3.

[0076] The preparation method of thermal transfer ink is as follows: adding deionized water, humectant, surfactant, defoaming agent and bactericide in sequence, stirring at 200 rpm at room temperature for 15 minutes, fully mixing and then adding thermal transfer dispersing color paste, stirring for 1 hour, The thermal transfer ink was obtained by filtering through a PVDF membrane with a pore size of 1.0 μm.

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Abstract

The invention relates to the technical field of thermal transfer printing, and provides a thermal transfer dispersion color paste and a preparation method thereof, and a thermal transfer printing ink and a preparation method thereof. The components of the thermal transfer dispersion color paste provided by the present invention include dispersants, thermal transfer disperse dyes, humectants, surfactants, bactericides and water, wherein the dispersants are composed of benzyl methacrylate, methacrylate , initiator and solvent are prepared. The dispersant used in the color paste of the present invention has a high thermal cracking temperature, does not gasify at the working temperature of thermal transfer printing, and has good dispersion performance, which can improve the stability of the color paste. The transfer ink is not easy to age, and it will not produce white smoke and odor during thermal transfer. The invention also provides a thermal transfer ink, which is colorless and odorless in the color development process, has good fluency, high printing quality, and good nozzle moisturizing performance.

Description

technical field [0001] The invention relates to the technical field of thermal transfer printing, in particular to a thermal transfer printing dispersion color paste and a preparation method thereof, and a thermal transfer printing ink and a preparation method thereof. Background technique [0002] Thermal transfer technology is an emerging printing technology. Thermal transfer is divided into two steps: transfer film printing and transfer processing. First, the pattern is pre-printed on the surface of the film by transfer film printing, and then passed through the thermal transfer machine once. 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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