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Paint for digital printing water-based paper coatings, and preparation method thereof

A digital printing, water-based technology, applied in the direction of paper coating, copying/marking method, coating, etc., can solve the problems of falling powder, increasing powder, reducing the gloss and transparency of printed matter, etc., to prevent scratches, increase wear resistance, Effects that increase gloss and vividness of color

Inactive Publication Date: 2019-08-06
河南千卡绘纸制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Conventional densely coated paper utilizing SiO2, ultrafine kaolin and ultrafine CaCO 2 Such as fillers to increase the porosity, so as to promote the rapid drying of digital water-based inkjet, but reduce the gloss and transparency of the printed matter, and increase the risk of powder falling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A coating for digital printing water-based paper coating, which is composed of the following raw materials in parts by weight: 65.7 parts of deionized water, 5 parts of gum arabic resin, 10 parts of corn starch, 1 part of sodium carboxymethyl cellulose resin, polyvinyl acetate emulsion 10 parts, 5 parts of acrylic modified resin, 1.5 parts of ammonia water, 0.5 parts of Casson series fungicides, 0.5 parts of Gas Chemical 465 surfactant, 0.3 parts of Gas Chemical 104 surfactant and 0.5 parts of sodium hexametaphosphate.

[0051] The preparation method of the digital printing water-based paper coating coating comprises the following steps:

[0052] 1) Add deionized water, gum arabic resin, corn starch and sodium carboxymethyl cellulose resin into the mixing tank according to the above ratio and stir for 25 minutes, then heat to boiling, stop heating after 10 minutes, and let it cool naturally to 40 ℃, add polyvinyl acetate emulsion, and stir for 15 minutes to obtain an in...

Embodiment 2

[0057] A coating for digital printing water-based paper coating, which is composed of the following raw materials in parts by weight: 65.8 parts of deionized water, 8 parts of gum arabic resin, 20 parts of oxidized starch, 0.5 parts of hydroxypropyl methylcellulose resin, ethylene vinyl acetate 8 parts of copolymer emulsion, 7 parts of maleic rosin modified resin, 2 parts of monoethanolamine, 0.5 part of 1,2-benzisothiazolin-3-one, 2 parts of Gas Chemical 485 surfactant, 0.2 part of Tego822 defoamer and 0.5 parts of citric acid two sodium.

[0058] The preparation method of the digital printing water-based paper coating coating comprises the following steps:

[0059] 1) Add deionized water, gum arabic resin, oxidized starch and hydroxypropyl methylcellulose resin into the mixing tank according to the above ratio and stir for 30 minutes, then heat to boiling, stop heating after 5 minutes, and let it cool naturally to At 35°C, add ethylene-vinyl acetate copolymer emulsion, stir...

Embodiment 3

[0064] A coating for digital printing water-based paper coating, which is composed of the following raw materials in parts by weight: 65.2 parts of deionized water, 20 parts of oxidized starch, 10 parts of polyvinylpyridone resin, 0.5 parts of hydroxyethyl cellulose resin, polyethylene 6 parts of alcohol resin, 5 parts of maleic rosin modified resin, 1.5 parts of NN dimethyl ethanolamine, 0.2 parts of Casson series fungicides, 1 part of gas chemical 465 surfactant, 0.4 parts of Tego822 defoamer and 0.2 parts of EDTA4Na.

[0065] The preparation method of this digital printing water-based paper coating coating comprises the following steps:

[0066] 1) Add deionized water, oxidized starch, polyvinylpyridone resin and hydroxyethyl cellulose resin into the mixing tank according to the above ratio and stir for 27 minutes, then heat to boiling, stop heating after 15 minutes, and let it cool naturally to 50°C, add polyvinyl alcohol resin, and stir for 13 minutes to obtain an initial...

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PUM

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Abstract

The invention discloses paint for digital printing water-based paper coatings. The paint consists of, by weight, 40-80 parts of deionized water, 10-30 parts of hydrophilic cellulose resin, 0.3-3 partsof a thickening agent, 1-10 parts of tackifying resin, 1-10 parts of weakly acidic resin, 0.5-2 parts of a pH neutralizer, 0.1-3 parts of a mildew-resistant bactericide, 0.1-3 parts of a water-soluble levelling agent, 0.2-0.5 part of a self-leveling antifoaming agent and 0.05-0.5 part of chelate. A preparation method of the paint is also disclosed. The paint can make water-based inkjet rapid fixed and dried, have good adhesiveness and not drop powder.

Description

technical field [0001] The invention relates to the technical field of coated paper and paper processing, in particular to a paint for digital printing water-based paper coating and a preparation method thereof. Background technique [0002] With the development of society, people's requirements for the living environment are gradually increasing. In order to meet the requirements of environmental protection and the diversification of market demand, the short-run printing market is growing rapidly. For short-run printing, digital printing has been rapidly developed due to the advantage of speed, and it is urgent to develop corresponding printing papers, especially water-based inkjet, according to the characteristics of digital printing. [0003] Digital printing on the market is mainly divided into electrostatic imaging and inkjet imaging. The former is in contact with paper similar to offset printing, while the latter is non-contact small nozzle imaging and mostly water-bas...

Claims

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Application Information

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IPC IPC(8): D21H19/12D21H17/28D21H17/26D21H17/37D21H17/36D21H17/66D21H21/14D21H21/36B41M5/52
CPCB41M5/52B41M5/5218B41M5/5227B41M5/5254D21H17/26D21H17/28D21H17/36D21H17/37D21H17/66D21H19/12D21H21/14D21H21/36
Inventor 汪元红刘伟汪正喜
Owner 河南千卡绘纸制品有限公司
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