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Ink printing pretreatment solution

A pretreatment liquid, ink printing technology, applied in fiber processing, textiles and papermaking, etc., to achieve the effect of improving color development and increasing fixing force

Inactive Publication Date: 2014-05-14
WUXI VISION PRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are certain defects in the inkjet printing and dyeing of fabrics: in the case of inkjet printing and dyeing, due to the problem of ejection, the viscosity of the ink is usually as low as 10mPa·s or less, or the function of the fabric to quickly absorb ink and fix it is insufficient, so In order to prevent bleeding of the printed matter after printing, pre-treatment is generally performed on the fabric in advance
[0007] All of the methods mentioned above are aimed at preventing image bleeding and obtaining vivid dyeings at high concentrations, but they have not yet achieved color density and vividness comparable to dyeings obtained by conventional screen printing methods.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Configure the pretreatment solution according to the following formula:

[0027] CaCl 2 The content is 6wt%,

[0028] BaCl 2 The content is 6wt%,

[0029] The content of crosslinkable polyurethane is 2.5wt%, water is the balance.

[0030] After the prepared pretreatment liquid is sprayed on the fabric, ink is sprayed, followed by heat treatment at 150° C. for 2 minutes.

[0031] After testing, the chroma of the fabric reaches 62.

Embodiment 2

[0033] Configure the pretreatment solution according to the following formula:

[0034] CaCl 2 The content is 2wt%,

[0035] BaCl 2 The content is 6wt%,

[0036] The content of crosslinkable polyurethane is 0.5wt%, and water is the balance.

[0037] After the prepared pretreatment liquid is sprayed onto the fabric, the ink is sprayed, followed by heat treatment at 100° C. for 1.5 minutes.

[0038] After testing, the chroma of the fabric reaches 60.

Embodiment 3

[0040] Configure the pretreatment solution according to the following formula:

[0041] CaCl 2 The content is 12wt%,

[0042] BaCl 2 The content is 6wt%,

[0043] The content of crosslinkable polyurethane is 1wt%, and water is the balance.

[0044] After the prepared pretreatment liquid is sprayed on the fabric, ink is sprayed, followed by heat treatment at 200° C. for 1 minute.

[0045] After testing, the chroma of the fabric reaches 65.

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Abstract

The invention discloses a pretreatment solution for pretreating a textile before ink printing, which contains water, alkali earth metal ionic compound and crosslinkable polyurethane, wherein the alkali earth metal ionic compound is a Ca-Ba halide mixture. The pretreatment solution can enable the printing chroma of the textile to reach 60 or so, which is 50% higher than the prior art. Meanwhile, by using the pretreatment solution, the adhesive force of the ink on the textile is increased, and the ink spraying stability of the sprayer is higher.

Description

technical field [0001] The invention relates to a pretreatment liquid, in particular to an ink printing pretreatment liquid, in particular to a pretreatment liquid used for pretreatment of the cloth before the ink is printed and dyed on the cloth. Background technique [0002] At present, inkjet printing and dyeing is more and more widely used, and its application fields include paper printing, plant printing, special material printing, etc. Ink is a uniform mixture composed of colored bodies (such as pigments, dyes, etc.), linking materials, filling (filling) materials, additional materials, etc. It can be printed and dried on the printed body. It is colored and has a certain flow. Degree of paste-like adhesive body. Therefore, color (hue), body (rheological properties such as thinness and fluidity) and drying performance are the three most important properties of ink. There are many types of inks, and their physical properties are also different. Some are very thick and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M11/155
Inventor 廖秀高
Owner WUXI VISION PRO
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