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

A technology of digital printing and refining method, which is applied in the direction of ink, household utensils, applications, etc., can solve the problems of unseen and unseen food coloring dye raw materials, and achieve bright color, mature production process, and color fastness to soaping Good results

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, food coloring is only used in food processing, and food coloring has not been seen

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: Refining of food coloring and preparation of digital printing ink

[0034] Take food colorings available in the market: amaranth 0.1-0.2kg, lemon yellow 0.1-0.2kg, edible bright blue 0.1-0.2kg, mixed black 0.1-0.2kg, add dimethylformamide solvent to dissolve, filter to remove insoluble matter , the organic solvent is evaporated to obtain refined food coloring. Add 1 kg of wetting agent glycerin; 0-1 kg of ethanol as solubilizer; 0.01-0.1 kg of phenol as preservative, put them into a container, add 10-20 kg of water at normal temperature to dissolve and prepare dye solutions of four colors. The above solution is filtered again with a filter cloth to remove insoluble matter and impurities to obtain digital printing ink.

Embodiment 2

[0035] Embodiment 2: Refining of food coloring and preparation of digital printing ink

[0036] Take commercially available food coloring: amaranth 0.05-0.1kg, tartrazine 0.05-0.1kg, edible bright blue 0.05-0.1kg, mixed black 0.05-0.1kg, respectively add methyl pyrrolidone solvent to dissolve, filter to remove insoluble matter, steam Remove the organic solvent to obtain refined food coloring. Add 1 to 2 kg of wetting agent diethylene glycol and 0 to 1 kg of butanone as a solubilizer for each of them, put them into a container, add 10 to 20 kg of water at normal temperature 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 digital printing ink.

Embodiment 3

[0037] Example 3: Fabric Treatment and Digital Printing

[0038]Take the digital printing ink of the above-mentioned embodiment 1 or embodiment 2, and pour it into the four color ink cartridges of the digital printing machine for use.

[0039] Process 10kg woolen fabric, at first be (1) get each 0.1kg of citric acid, urea, sodium sulfate and boric acid, then get starch size (1~4% of the treated fabric weight), use starch 0.1~0.4kg. Mix the above-mentioned components, add 10-20 kg of deionized water, heat and gelatinize, control the acidity PH=3-4 with the addition of citric acid, and make an acidic spraying liquid. (2) Hold up the edge of the wool fabric for uniform spraying. Then (3) step to dry under mild temperature conditions.

[0040] After pretreatment, let the fabric pass through the digital printing machine, and use the ENCAD Nova Jet700 thermal foaming digital printer to start printing the pre-designed pattern. This printing method is well known by the industry.

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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 ink dyestuff comprises refined edible lemon yellow, edible amaranth, edible bright blue and edible melanin, the proportions of each pigment in the ink are, edible pigment 1-5%, wetting agent 5-50%, solubilizing agent 0-10%, preservative agent 0-2%, the rest is water. The process of refining food color comprises the steps of, dissolving in organic solvent, filtering, 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 and its dye refining method and digital printing method. Specifically, food pigments are selected and refined, used as textile dyes to make 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, avoiding the disadvantages of the traditional printing technology that each pattern needs to manufacture a corresponding screen in advance, and the time is long and the cost is high. Only large-scale printing can reduce the cost. 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-patterns, personalization, fast delivery and high quality. It is highly valued by the printing and dyeing industry. The digital printing and dyeing method of anionic textile dyes on modified fibers pro...

Claims

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Application Information

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IPC IPC(8): C09D11/328
Inventor 于伯龄姚云杨九瑞于磊岚
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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