High-pigment-concentration digital direct-injection textile coating material ink and preparation method thereof

A digital direct-injection and pigment technology, applied in textiles and papermaking, ink, dyeing, etc., can solve problems such as poor printing fluency, waste of time and ink, frequent cleaning of nozzles, etc.

Inactive Publication Date: 2019-12-20
珠海佳印数码科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, there are few textile coating inks suitable for high-speed printing of Epson six-nozzle printers,

Method used

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  • High-pigment-concentration digital direct-injection textile coating material ink and preparation method thereof

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Embodiment 1

[0031] A preparation method of high pigment concentration digital direct jet textile paint ink, comprising the following steps:

[0032] S1) Raw material preparation: Add solvent, dispersant, bactericide and pH regulator to deionized water in sequence;

[0033] S2) Mixing: Stir the above raw materials at high speed for 5 minutes, add water-based polyurethane resin, and stir at high speed for 10 minutes;

[0034] S3) Stirring: add pigment paste, curing agent, and continue to stir at high speed for 2 hours;

[0035] S4) Filtration: the digital direct-injection textile paint ink with high pigment concentration is obtained through filtration.

[0036] According to the above method in combination with the following formulations, each embodiment and comparative example were prepared.

[0037] Each embodiment of table 1 digital direct jet textile coating ink formula (weight percentage)

[0038] Example 1 Example 2 Example 3 comparative example Waterborne poly...

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Abstract

The invention discloses high-pigment-concentration digital direct-injection textile coating material ink, which is prepared from the following raw materials by weight: 400-500 parts of pigment color paste, 150-200 parts of a polymer resin, 150-200 parts of a solvent, 10-30 parts of a dispersing agent, 20-40 parts of a curing agent, 1-10 parts of a bactericide, 2-10 parts of a pH value regulator, and 50-250 parts of deionized water, wherein the resin is an aqueous polyurethane resin, the solvent comprises one or a plurality of materials selected from diethylene glycol, propylene glycol, polyethylene glycol, glycerol, triethylene glycol, ethylene glycol and glycerol, and the dispersing agent is a high-molecular-weight block copolymer solution containing a pigment affinity group. The invention further provides a preparation method. According to the present invention, the polyol chain segment in the aqueous polyurethane resin endows the resin with good flexibility, the isocyanate chain segment endows the resin with good rubbing fastness, the aqueous polyurethane is used in ink to provide good adhesion between the ink and the fabric, and the ink is endowed with proper viscosity by combining the excellent flexibility and the solvent, so that the ink has good printing fluency.

Description

technical field [0001] The invention relates to the field of textile coating inks, in particular to a digital direct-injection textile coating ink, especially a digital direct-injection textile coating ink with high pigment concentration and a preparation method thereof. Background technique [0002] Digital direct-injection paint printing mainly uses digital direct-injection textile paint inks to print patterns or images directly on textiles through wide-format printers. Digital printing machines on the market are mainly based on Epson nozzles, Epson dual-nozzle printers, and four-nozzle printers cannot meet the requirements of digital printing for printing speed due to their slow printing speed. Therefore, in recent years, the Epson six-nozzle printer has been developed. The Epson six-nozzle printer has fast printing speed and high printing accuracy, which meets the speed requirements of digital printing. The printing speed can be compared with industrial nozzles, and the ...

Claims

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Application Information

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IPC IPC(8): C09D11/30C09D11/322C09D11/36D06P1/52D06P1/642D06P1/673D06P5/30
CPCC09D11/30C09D11/322C09D11/36D06P1/52D06P1/5285D06P1/6426D06P1/673D06P5/30
Inventor 邓卫明王芳华
Owner 珠海佳印数码科技有限公司
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