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Cation dye digital printing ink and printing method for digital printing ink

A cationic dye and digital printing technology, which is applied in ink, household utensils, applications, etc., to achieve the effect of cheap price, wide applicability and stable performance

Inactive Publication Date: 2006-09-20
BEIJING INST OF CLOTHING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, cations (including basic dyes) have not been seen as dye inks for digital printing, and are used in textile digital printing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: the preparation of cationic and basic dye digital printing ink

[0021] Take the corresponding cationic and basic dyes available in the market, add them to an appropriate amount of ethanol solvent, remove the insoluble matter with filter paper or filter cloth, and then distill off the organic solvent to obtain refined dyes. Take 0.05-0.2kg of the above-mentioned refined basic yellow O; 0.05-0.2kg of basic rhodamine; 0.05-0.2kg of cationic emerald blue GB;

[0022] Add 2kg of wetting agent glycerin; 0.05kg of phenol to each of them, and add 5-10kg of deionized water to dissolve and prepare dye solutions of four colors. The above solution is filtered again with filter paper to remove insoluble matter and impurities to obtain cationic dye digital printing ink.

Embodiment 2

[0023] Embodiment 2: the preparation of cationic dye digital printing ink

[0024] Take the dye from Dystan Company in France, add it to an appropriate amount of dimethylformamide solvent, filter to remove the insoluble matter, and then distill off the organic solvent to obtain refined dye. Take 0.05-0.1 kg each of the above-mentioned refined Astrachon Yellow GL-E, Astrachon Red F3BL, Astrachon Blue FGRL, and Astrachon Black SW. Add 0.5 kg of diethylene glycol as a wetting agent, 0.05 kg of sorbic acid as a preservative, and 2.5 to 5 kg of deionized water to dissolve each of them to prepare dye solutions of four colors. The above solution is filtered again with a filter cloth to remove insoluble matter and impurities to obtain cationic dye digital printing ink.

Embodiment 3

[0025] Example 3: digital printing of acrylic fiber, cationic dyeable polyester, silk, wool, diacetate fiber

[0026] Take the digital printing ink of the above-mentioned embodiment 1 or embodiment 2, and pour it into the four ink cartridges of the digital printing machine for use. First, pre-mordante the acrylic fabric: (1) take sodium sulfate, 0.05-0.1kg citric acid, 0.01kg cresol, and then take carboxymethyl cellulose slurry, such as taking 10kg acrylic fiber and other fabrics as an example, use carboxymethyl cellulose 0.3-0.4kg of methyl cellulose. Mix the above-mentioned components and add 10-15 kg of deionized water to control the spraying liquid with pH=3-5. (2) Hold up the edges of fabrics such as acrylic fiber for uniform spraying operation, and then (3) dry it under mild temperature conditions, iron it, and set it aside.

[0027] After pretreatment, the second step of printing is to pass the pre-mordanted fabric through the digital printing machine, and use the dig...

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PUM

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Abstract

The digital printing ink dye is refined cationic dye and alkali dye, and includes C.I. alkali yellow-2, C.I. alkali orange-29, C.I. alkali red-1, C.I. alkali purple-10, Astrichong red F3BL, C.I. alkali blue, Astrichong blue FGRL, cationic black RL and Astrichong black SW. The ink comprises cationic dye 0.5-5 wt%, wetter 5-50 wt%, solubilizer 0-10 wt% and preservative 0-2 wt% except water. The digital printing process includes the steps of: pre-treating fabric; printing in digitally printing machine; and post-treating fabric. The present invention has the advantages of low cost, stable digital printing ink, and bright and beautiful printed color.

Description

technical field [0001] The invention relates to a digital printing ink and a dye printing method thereof. Specifically, cationic dyes (including basic dyes) are selected and made into textile digital printing inks, and the digital printing method is used to print textiles. Background technique [0002] In recent years, textile printing has adopted a digital printing technology. Because it avoids the need to manufacture a corresponding screen for each pattern in printing and dyeing, it takes a long time and high cost. Only large-scale printing is possible. Disadvantages of cost reduction. However, the use of digital printing (formerly known as inkjet printing) does not require plate making, and the pattern change and printing speed are fast. It is suitable for small batches, multi-pattern patterns, personalization, fast delivery and high quality, and has been valued by the printing and dyeing industry. For example, the digital printing and dyeing method of anionic textile dy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/02C09D11/03
Inventor 于伯龄姚云杨九瑞于磊岚
Owner BEIJING INST OF CLOTHING TECH
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