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High-gloss water-based varnish

A water-based varnish and high-gloss technology, used in the field of printing, can solve the problems of poor volatilization, slow drying, unstable products, etc., and achieve the effects of good wear resistance, strong adhesion, and good printing adaptability.

Inactive Publication Date: 2018-06-19
星光印刷(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly two varnish methods on the market: on-line water-based varnish and offline UV varnish. The traditional offline UV varnish is the most commonly used. Although the brightness of offline UV varnish can reach 85 degrees, due to UV varnish Contains many solvents that are harmful to the human body and causes serious pollution to the environment. This production process is no longer in line with the development trend of society; the more environmentally friendly in-line water-based glazing process is also used by more and more companies, but due to this This process uses water as the solvent of water-based varnish, which also has disadvantages, such as poor volatilization, slow drying speed, easy to cause product instability, and the brightness of connected water-based varnish can only reach about 70 degrees

Method used

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  • High-gloss water-based varnish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-gloss water-based varnish, composed of the following components by weight: 35 parts of styrene-acrylic emulsion, 20 parts of water-soluble acrylic epoxy resin, 17 parts of polybutylene adipate, 8 parts of wax emulsion, 2-amino It is prepared from 4.2 parts of sodium ethyl taurine, 5 parts of isophorone diisocyanate, 2.8 parts of diethanolamine, and 2 parts of additives.

[0020] The water-soluble acrylic epoxy resin is formed by copolymerization of the following components in parts by weight: 25 parts of epoxy resin, 8 parts of acrylic acid, 8 parts of maleic anhydride, and 5 parts of ethylenediamine.

[0021] The wax emulsion is a carnauba wax emulsion.

[0022] The auxiliary agents include leveling agents, dispersants, brighteners, defoamers and plasticizers.

[0023] The leveling agent is carboxymethyl cellulose.

[0024] The dispersant is polyacrylic acid sodium salt.

[0025] The brightener is organosiloxane.

[0026] The defoamer is polydimethylsiloxane...

Embodiment 2

[0029] A high-gloss water-based varnish, composed of the following components in parts by weight: 37 parts of styrene-acrylic emulsion, 18 parts of water-soluble acrylic epoxy resin, 16 parts of polybutylene adipate, 7 parts of wax emulsion, 2-amino Prepared with 4.6 parts of sodium ethyl taurine, 4.5 parts of isophorone diisocyanate, 3 parts of diethanolamine, and 2.1 parts of additives.

[0030] The water-soluble acrylic epoxy resin is formed by copolymerization of the following components in parts by weight: 25 parts of epoxy resin, 8 parts of acrylic acid, 8 parts of maleic anhydride, and 5 parts of ethylenediamine.

[0031] The wax emulsion is a carnauba wax emulsion.

[0032] The auxiliary agents include leveling agents, dispersants, brighteners, defoamers and plasticizers.

[0033] The leveling agent is carboxymethyl cellulose.

[0034] The dispersant is polyacrylic acid sodium salt.

[0035] The brightener is organosiloxane.

[0036] The defoamer is polydimethylsil...

Embodiment 3

[0039] A high-gloss water-based varnish, composed of the following components in parts by weight: 36 parts of styrene-acrylic emulsion, 20 parts of water-soluble acrylic epoxy resin, 15 parts of polybutylene adipate, 6 parts of wax emulsion, 2-amino It is prepared from 4 parts of sodium ethyl taurine, 4.7 parts of isophorone diisocyanate, 2.8 parts of diethanolamine, and 2.2 parts of additives.

[0040] The water-soluble acrylic epoxy resin is formed by copolymerization of the following components in parts by weight: 25 parts of epoxy resin, 8 parts of acrylic acid, 8 parts of maleic anhydride, and 5 parts of ethylenediamine.

[0041] The wax emulsion is a carnauba wax emulsion.

[0042] The auxiliary agents include leveling agents, dispersants, brighteners, defoamers and plasticizers.

[0043] The leveling agent is carboxymethyl cellulose.

[0044] The dispersant is polyacrylic acid sodium salt.

[0045] The brightener is organosiloxane.

[0046] The defoamer is polydimet...

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Abstract

The invention relates to the field of printing, in particular to a high-gloss water-based varnish. The varnish is prepared from the following components in parts by weight: 35-37 parts of styrene-acrylic emulsion, 18-20 parts of water-soluble acrylic epoxy resin, 15-17 parts of polybutylene adipate, 6-8 parts of wax emulsion, 4-4.6 parts of sodium 2-[(2-aminoethyl)amino]ethanesulphonate, 4.5-5 parts of isophorone diisocyanate, 2.8-3 parts of diethanolamine and 2-2.2 parts of an aid, wherein the water-soluble acrylic epoxy resin is prepared from the following components in parts by weight by copolymerization: 25 parts of epoxy resin, 8 parts of acrylic acid, 8 parts of maleic anhydride and 5 parts of ethylenediamine. The varnish has the advantages of high gloss, low cost and stable product.

Description

technical field [0001] The invention belongs to the field of printing, and in particular relates to a high-gloss water-based varnish. technical background [0002] In recent years, the requirements for environmental protection of packaging materials have become higher and higher, and the surface treatment process requirements of product packaging are very high, especially the post-press glazing process, which means that a layer of colorless transparent paint is applied (or sprayed or printed) on the surface of printed matter. , After drying, it can protect and increase the gloss of printed matter. Apply (or spray, print) a layer of colorless and transparent paint on the surface of the printed matter. After leveling, drying, calendering, and curing, a thin and uniform transparent bright layer is formed on the surface of the printed matter to enhance the smoothness of the surface of the carrier. The process of protecting the finishing function of printed graphics. [0003] A...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D163/10C09D167/02C09D191/06C09D7/63
Inventor 张彪
Owner 星光印刷(苏州)有限公司