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Crosslinked vinyl acetate-acrylic emulsion for digital color inkjet ink-absorbing coating and preparation method thereof

A technology of ink-absorbing coating and vinegar-acrylic emulsion, applied in the direction of coating, etc., can solve the problems of emulsion stability decline, difficult control of viscosity, cost increase, etc., and achieve printing with bright colors, excellent water resistance and strong impact resistance Effect

Inactive Publication Date: 2015-05-13
NANTONG HUARUN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A qualified adhesive can improve the stability of the coating system without affecting the color performance, and endow the color spray paper with good water resistance and wet fastness. In the prior art, the glue used for digital color spray paper coating Most adhesives use polyvinyl alcohol (PVA). However, if polyvinyl alcohol is used alone as an adhesive, the viscosity of the coating system is not easy to control, which is not conducive to the coating process of color spray paper, and the wet fastness of the coating is not good.
Others use one or more of vinyl acetate-ethylene copolymers, water-based polyurethane, styrene-acrylic emulsion, and pure acrylic emulsion as adhesives, but the cost is also greatly increased.
[0003] A few use acrylic acid as a functional monomer and polyvinyl alcohol 1788 as a protective glue. However, due to the presence of acrylic acid, cross-linking reactions between polyvinyl alcohol polymer chains are prone to occur, which reduces the stability of the emulsion and gradually increases the viscosity of the system, resulting in a The viscosity is not easy to control, but it is not conducive to the application of late emulsion

Method used

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  • Crosslinked vinyl acetate-acrylic emulsion for digital color inkjet ink-absorbing coating and preparation method thereof
  • Crosslinked vinyl acetate-acrylic emulsion for digital color inkjet ink-absorbing coating and preparation method thereof
  • Crosslinked vinyl acetate-acrylic emulsion for digital color inkjet ink-absorbing coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of cross-linked vinegar-acrylic emulsion for digital color-jet ink-absorbing coating, which is composed of the following components by weight in the total amount of the emulsion: 15 parts of vinyl acetate; 3.1 parts of acrylic acid; 0.9 parts of methacrylic acid; N - 0.03 parts of methylol acrylamide, 0.3 parts of a mixture of sodium lauryl sulfate and OP-10; 17881.5 parts of polyvinyl alcohol; 0.03 parts of ammonium persulfate; 0.03 parts of disodium hydrogen phosphate, and 79.11 parts of water.

[0028] The preparation method of the cross-linked vinegar-acrylic emulsion for the above-mentioned digital color-jet ink-absorbing coating comprises the following steps:

[0029] 1) Preparation of monomer mixture: mix vinyl acetate, acrylic acid, methacrylic acid, and N-methylol acrylamide with 80% water according to the above ratio to obtain a monomer mixture, which is set aside;

[0030] 2) Preparation of the pre-emulsion: get 10% of the weight of the monomer mixture...

Embodiment 2

[0037] A kind of cross-linked vinegar-acrylic emulsion for digital color-jet ink-absorbing coating, which is composed of the following components by weight in the total amount of the emulsion: 28 parts of vinyl acetate, 12.4 parts of methyl acrylate, methyl methacrylate 9.3 parts, 1.5 parts of N-isopropoxymethacrylamide, 1.5 parts of a mixture of sodium dodecylsulfonate and NP-10, 3 parts of hydroxyethyl cellulose, 0.3 parts of potassium persulfate, 0.3 parts of disodium hydrogen phosphate , add 43.7 parts of water.

[0038] The preparation method of the cross-linked vinegar-acrylic emulsion for the above-mentioned digital color-jet ink-absorbing coating comprises the following steps:

[0039] 1) Preparation of the monomer mixture: mix vinyl acetate, methyl acrylate, methyl methacrylate, and N-isopropoxymethacrylamide with 80% by weight of water in proportion to obtain the monomer mixture, spare;

[0040] 2) Preparation of the pre-emulsion: take 50% of the weight of the mono...

Embodiment 3

[0047] A cross-linked vinegar-acrylic emulsion for digital color-jet ink-absorbing coating, which is composed of the following components by weight in the total amount of the emulsion: 20 parts of vinyl acetate, 10 parts of ethyl acrylate, 10 parts of ethyl methacrylate 5 parts, 1 part of N-isopropoxymethacrylamide, 1 part of sodium dodecylbenzenesulfonate and OP-20 mixture, 17992 parts of polyvinyl alcohol, 0.1 part of ammonium persulfate, 0.1 part of sodium bicarbonate, plus moisture.

[0048] A kind of preparation method of above-mentioned digital color-jet ink-absorbing coating cross-linked type vinegar acrylic emulsion, comprises the steps:

[0049] 1) Preparation of the monomer mixture: mix vinyl acetate, ethyl acrylate, ethyl methacrylate, and N-isopropoxymethacrylamide with 80% by weight of water in proportion to obtain the monomer mixture, spare;

[0050] 2) Preparation of pre-emulsion: get step 1) 30% of the weight of the monomer mixed solution obtained in the step...

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Abstract

The invention discloses a crosslinked vinyl acetate-acrylic emulsion for a digital color inkjet ink-absorbing coating and a preparation method thereof. The crosslinked vinyl acetate-acrylic emulsion is composed of the following components in parts by weight: 15-28 parts of vinyl acetate, 3.1-12.4 parts of acrylic monomer, 0.9-9.3 parts of methacrylic monomer, 0.03-1.5 parts of crosslinking monomer, 0.3-1.5 parts of emulsifier, 1.5-3 parts of protective adhesive, 0.03-0.3 part of initiator, 0.03-0.3 part of pH regulator and the balance of water, totaling 100 parts. Compared with the prior art, the vinyl acetate-acrylic emulsion has greatly higher stability; and when the vinyl acetate-acrylic emulsion independently forms a film, the vinyl acetate-acrylic emulsion film has the advantages of high transparency, high toughness, high shock resistance and excellent water resistance. The digital color inkjet ink-absorbing coating prepared by the vinyl acetate-acrylic emulsion has the advantages of excellent water resistance, bright printing color and no fading.

Description

technical field [0001] The invention relates to the field of adhesives for digital printing coatings, in particular to a crosslinked vinegar-acrylic emulsion for digital color jet ink-absorbing coatings and a preparation method thereof. Background technique [0002] As the direct carrier of color inkjet ink, the quality of color inkjet digital printing paper has a decisive effect on the quality of imaging, and the key technology that determines the quality of color inkjet paper lies in the ink-absorbing coating of the paper. The ink-absorbing coating of color-jet paper mainly includes pigments, adhesives, color-fixing agents, whitening agents and other components. Among them, the role of the adhesive as the continuous phase is to bond the pigments and other components to each other, and to It spreads evenly on the paper. A qualified adhesive can improve the stability of the coating system without affecting the color performance, and endow the color jet paper with good water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F218/08C08F220/06C08F220/58C08F220/14C09D131/04
Inventor 贾翔宇罗孝勇陆建辉王玉丰
Owner NANTONG HUARUN NEW MATERIAL
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