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Aqueous inkjet ink for digital printing

A water-based inkjet, digital printing technology, applied in inks, household appliances, applications, etc., can solve the problems of fast drying, poor color fastness and printing stability, poor color fastness and color reproduction, etc. To achieve the effect of strong quality stability and good water resistance

Inactive Publication Date: 2012-05-16
HONGSAM DIGITAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the composition does not use suitable additives and pigments, the quick drying, color fastness and printing stability are not good
[0005] Chinese patent CN100422273C discloses a quick-drying ink for inkjet printers, which includes dyes, short-chain alcohols, natural polymers and synthetic polymers, because the components of its ink composition contain water-soluble dyes, short-chain alcohols Compounds, oligomers and polymers, buffer solutions, preservatives and deionized water, the ink can dry and coagulate in an instant during inkjet printing to prevent burrs and smudges, but because the composition does not use suitable additives and Colorants, the color fastness and color rendition of the application on non-absorbent media are not good

Method used

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  • Aqueous inkjet ink for digital printing
  • Aqueous inkjet ink for digital printing
  • Aqueous inkjet ink for digital printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] According to the weight percentage, it includes the following components: C.I. Pigment Black 7 (particle size 50-150nm) 8%, diethylene glycol ether 15%, polyurethane 20%, polyether modified polydimethylsiloxane BYK-348 2% , 1% of 5-chloro-2-methyl-4-isothiazolin-3-one, 0.1% of sodium hydroxide, and the rest is deionized water.

[0027] After the above components are stirred and mixed evenly, they are filtered through a filter membrane with a pore size of 0.45 microns to obtain the digital printing water-based inkjet ink of the present invention.

Embodiment 2

[0029] According to the weight percentage, it includes the following components: C.I. Pigment Blue 15:3 (particle size 70~180nm) 7%, diethylene glycol methyl ether 20%, polyurethane 15%, polyether modified polydimethylsiloxane BYK- 348 1.5%, 5-chloro-2-methyl-4-isothiazolin-3-one 0.5%, ammonium hydroxide 2%, the rest is deionized water.

[0030] After the above components are stirred and mixed evenly, they are filtered through a filter membrane with a pore size of 0.45 microns to obtain the digital printing water-based inkjet ink of the present invention.

Embodiment 3

[0032] The following components are included in terms of weight percentage: C.I. Pigment Violet 19 (particle size 90-190nm) 6%, diethylene glycol ether 10%, polyurethane 10%, polyether modified polydimethylsiloxane BYK-345 1.0% , 0.5% of 5-chloro-2-methyl-4-isothiazolin-3-one, 1.5% of ammonium hydroxide, and the rest is deionized water.

[0033] After the above components are stirred and mixed evenly, they are filtered through a filter membrane with a pore size of 0.45 microns to obtain the digital printing water-based inkjet ink of the present invention.

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Abstract

The invention discloses aqueous inkjet ink for digital printing, which comprises the following components according to the weight percentage: 0.2-10.0 percent of nano pigment, 2-20 percent of adhesion promoter, 2-20 percent of adhesive, 0.2-2 percent of surface tension regulator, 0.1-1 percent of fungicide, 0.1-2 percent of pH value regulator and the rest deionized water. The invention has the beneficial effects that: the ink can be applied to micro piezoelectric printers and thermal foaming printers; the ink has stability in quality and can be stored for a long time; and the ink can be applied to printing on copperplate paper, PP (polypropylene), PVC (polyvinyl chloride), PU (polyurethane), PET (polyethylene terephthalate) and other non-absorbent media, and also has good water resistance, abrasion resistance, quick-drying performance, color reproduction and color fastness.

Description

technical field [0001] The invention relates to an inkjet printing ink, in particular to a water-based inkjet ink for digital printing. Background technique [0002] The application of inkjet printing in the printing industry saves the production process of the printing screen, so it can save a lot of time and cost, especially for the changeable pattern modeling, it can obviously achieve the required changes in a shorter time. [0003] Water-based inkjet inks are generally printed on highly ink-absorbent media, and printing on non-absorbent media is not suitable. At the same time, when inkjet ink is used in the printing industry, the stability, printing adaptability, color fastness and color reproduction of the ink need to meet higher requirements. [0004] Chinese patent CN100595241C discloses an inkjet ink and a printing method using it, which includes pigments, deionized water, surfactants and solvents containing 40% to 75% by weight. However, because the composition do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/30
Inventor 赵树海秦国胜
Owner HONGSAM DIGITAL SCI & TECH
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