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High-thermal-vacuum-fastness pigment printing process

A pigment printing and vacuum technology, applied in the field of printing and dyeing, to achieve the effect of ensuring uniformity and stability, improving specific surface area and surface activity, and promoting immobilization

Active Publication Date: 2021-10-22
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the research on the stability of printing pastes in a vacuum environment is still lacking, and the technical solutions specially used to improve the heat-resistant vacuum fastness of colored textiles are basically blank, and the thermal vacuum environment is more stable than the high-heat environment. Harsh, so the stability of the color paste is more demanding

Method used

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  • High-thermal-vacuum-fastness pigment printing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3 and comparative example 4-6

[0042] A pigment printing process with high heat and vacuum fastness, including the printing treatment of pigment printing paste and the padding treatment process of water-based polyurethane emulsion (with a particle size of 200-500nm), the prepared pigment printing paste is blended with polyester-cotton fabric Printing, and then padding a layer of water-based polyurethane coating film, post-curing and drying. Among them, pigment printing paste includes by mass percentage:

[0043] 1~10% pigment;

[0044] 1-10% wool fiber powder; the particle size of the wool fiber powder is 35 μm (including intermittent medulla layer);

[0045] 2-3% PTF paste;

[0046] 0.5~1% coupling agent KH-560;

[0047] 10-20% binder UDT;

[0048] 0.5~1% crosslinking agent AF6900;

[0049] The balance is distilled water.

[0050] The configuration method is: S1. Add 1% to 10% of pigment, 1% to 10% of wool fiber powder and 0.5% to 1% of silane coupling agent into distilled water, and stir at a speed ...

Embodiment 4

[0057] A pigment printing process with high heat vacuum fastness, compared with Example 2, the difference is that the wool fiber powder is soaked in 5% ammonia water for 20 minutes. Others are substantially the same as those in Embodiment 2, and will not be repeated here.

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Abstract

The invention provides a high-thermal-vacuum-fastness pigment printing process. The pigment printing process comprises printing treatment of pigment printing paste and padding treatment of waterborne polyurethane emulsion. The pigment printing paste comprises the following components in percentage by mass of 1%-10% of pigment, 1%-10% of wool fiber powder, 0.5%-1% of a silane coupling agent KH-560, 10%-20% of an adhesive, 2%-3% of a thickening agent, 0.5%-1% of a cross-linking agent and the balance of a solvent. According to the invention, the wool fiber powder with a special structure and the coupling agent are added into the color paste, and a layer of waterborne polyurethane coating film is padded after printing, so that the high thermal vacuum fastness of pigment molecules is remarkably improved, and the problems of pigment sublimation and color fastness migration caused by thermal vacuum suction of pigment molecules of a colored textile under the conditions of high vacuum degree and high-temperature environment are solved.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a paint printing process with high thermal vacuum fastness. Background technique [0002] Pigment printing is a printing method that adheres the paint to the printed fiber material by means of the binder in the printing paste. Because of its simple process and short production process, especially after pigment printing, it generally does not need to be washed, which saves a lot of water and reduces the discharge of pollutants. It is a clean and environmentally friendly production and processing method, so it is popular in printing and dyeing. Industry welcome. [0003] The composition of pigment printing paste generally contains main components such as paint, adhesive, thickener and other additives and water. Among them, the paint provides the coloring component in the pigment printing paste, which is a paste made by grinding organic (or inorganic) pigments and corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/44D06P1/46D06P1/651D06P1/52
CPCD06P1/44D06P1/46D06P1/65131D06P1/65106D06P1/5257D06P1/5285
Inventor 徐卫林王运利曹根阳盛丹潘恒
Owner WUHAN TEXTILE UNIV
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