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Digital printing ink, dyestuff refining method thereof and digital printing method

A digital printing and dyeing technology, applied in ink, household utensils, applications, etc., to achieve the effect of mature production technology, wide application range, and good color fastness to soaping

Inactive Publication Date: 2004-06-16
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, direct dyes have not been seen as dye raw materials 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

[0035] Embodiment 1: Direct dye refining and digital printing ink preparation

[0036]Take a commercially available direct dye, add an appropriate amount of dimethylformamide to dissolve it, remove the insoluble matter with filter paper or filter cloth, and then distill off the organic solvent to obtain a refined dye. Take 0.1-0.2kg of the above-mentioned direct fast yellow 5GL, 0.1-0.2kg of direct fast red F3B, 0.1-0.2kg of direct light-fast emerald blue GL, 0.1-0.2kg of direct fast black G, each Add 2 kg of wetting agent polyethylene glycol, 1 kg of solubilizer urea, and 0.05 kg of preservative sorbic acid into a container, add 5 to 10 kg of water at room temperature to dissolve and prepare dye solutions of four colors. Filter the above solution with a filter cloth to remove insoluble matter and impurities to obtain direct dye digital printing ink.

Embodiment 2

[0037] Embodiment 2: direct dye refining and digital printing ink preparation

[0038] Take commercially available direct dyes, dissolve the direct dyes with dimethyl sulfone and filter to remove insoluble matter, and then distill off the solvent to obtain refined direct dyes. Prepare 0.05-0.1kg of refined direct fast red F3B, Blue GL 0.05~0.1kg, Direct Fast Fluorescent Yellow 7GFF 0.05~0.1kg, Direct Fast Black EX 0.05~0.1kg. Add 0.5 kg of wetting agent diethylene glycol and 0.02 kg of preservative phenol to each of them, put them into a container, add 2.5 to 5 kg of water at room temperature to dissolve and prepare dye solutions of four colors. Filter the above solution with filter paper to remove insoluble matter and impurities to obtain direct dye digital printing ink.

Embodiment 3

[0039] Embodiment 3: Cotton fabric processing and digital printing

[0040] 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.

[0041] Firstly, pretreatment of cotton and linen fabrics: (1) Take 0.05-0.1kg each of sodium sulfate and sodium carbonate, 0.01kg of cresol, and then take carboxymethyl cellulose slurry. 0.3-0.4kg of methyl cellulose. Mix the above-mentioned components and add 10-15kg of deionized water to control the spraying solution with pH=8-9. (2) Hold up the edge of the cotton and linen fabric for uniform spraying. Then (3) step to dry under mild temperature conditions for later use.

[0042] The second step of printing after pretreatment: let the fabric pass through the digital printing machine, under the program of the raster image processing software (RIP), use the digital printer ENCAD Nova Jet 700 thermal foaming printer to start printing, a...

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PUM

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Abstract

The invention relates to a digital stamping ink, method of dyestuff refining and method of digital stamping, wherein the digital stamping ink dyeing raw material is refined direct dyes comprising direct pigment yellow 5GL, direct sun-proof fluorescein 7GFF, direct pigment red F3B, direct pigment direct turquoise blue GL, direct pigment black G, or direct pigment black Ex. The process for refining direct dyes comprises, dissolving in organic solvent, filtering and rouging, removing organic solvent. The digital stamping process comprises the steps of, pretreating the textile materials, stamping using digital stamping machine, post-treating the textile materials.

Description

technical field [0001] The invention relates to a digital printing ink, a dye refining method and a digital printing method. Specifically, direct dyes are selected and refined, and made into textile digital printing ink, 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 text...

Claims

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Application Information

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IPC IPC(8): C09D11/03
Inventor 于伯龄姚云杨九瑞于磊岚
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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