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Water thinned polishing oil for offset line and its prepn

A water-based varnish and connection technology, which is applied in the field of chemical coatings, can solve the problems of glossiness, dryness and wear resistance, and achieve the effects of strong transparency, simple manufacturing process, and accelerated drying speed

Inactive Publication Date: 2007-01-03
HUIZHOU KAIHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing in-line water-based varnishes in China have a certain gap in gloss, dryness, and wear resistance.

Method used

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  • Water thinned polishing oil for offset line and its prepn
  • Water thinned polishing oil for offset line and its prepn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Preparation of acrylic resin emulsion containing trifunctional monomer and N-hydroxyethyl acrylamide:

[0022] Put 250g of deionized water, 95g of styrene, 50g of butyl acrylate, functional monomer trifunctional acrylate, 10g of N-hydroxyethyl acrylamide into a three-necked flask, select the monomer ratio of 1.5:1, and mix the emulsifier 10g, potassium persulfate 1g, sodium bisulfite 1g, disodium hydrogen phosphate 1g, polyvinyl alcohol 0.5g. Then the emulsion was synthesized by seed emulsion polymerization, and the temperature was adjusted to 80°C and the rotation speed was 1500 rps / m to obtain a stable emulsion.

[0023] 2. Preparation of connection water-based varnish:

[0024] Take 50g of the prepared styrene-acrylic resin emulsion, 5g of solid acrylic resin aqueous solution, 20g of film-forming acrylic emulsion, 10g of polyvinyl wax emulsion, 2g of water-based silicone leveling agent, and silicone Foaming agent 1g, deionized water 12g. Add them to the mixing tank on...

Embodiment 2

[0028] 1. Preparation of acrylic resin emulsion containing trifunctional monomer and N-hydroxyethyl acrylamide:

[0029] Put 250g of deionized water, 125g of styrene, 80g of butyl acrylate, functional monomer trifunctional acrylate, 20g of N-hydroxyethyl acrylamide into a three-necked flask, select 1:1 monomer ratio, mix emulsifier 15g, potassium persulfate 3g, sodium bisulfite 3g, disodium hydrogen phosphate 3g, polyvinyl alcohol 1.5g. Then, the emulsion was synthesized by seed emulsion polymerization, and the temperature was adjusted to 120°C and the rotation speed was 2500 rps / m to obtain a stable emulsion.

[0030] 2. Preparation of connection water-based varnish:

[0031] Take 55g of the prepared styrene-acrylic resin emulsion, 15g of solid acrylic resin aqueous solution, 15g of film-forming acrylic emulsion, 5g of polyvinyl wax emulsion, 2g of water-based silicone leveling agent, and silicone Add 1g of foaming agent and 7g of deionized water to the mixing tank in turn, start...

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Abstract

The present invention relates to chemical paint technology, and is especially one kind of water thinned polishing oil for offset line and its preparation process. The water thinned polishing oil consists of styrene-acrylate resin emulsion containing three functional monomer and N-hydroxyethyl acrylamide 40-75 wt%, acrylic resin solution 5-30 wt%, filming acrylic acid emulsion 5-20 wt%, wax emulsion 1-10 wt%, water thinned leveling agent 0.5-3 wt%, water thinned defoaming agent 0.2-5 wt% and water for the rest. The present invention has simple preparation process and can reach high printing level.

Description

Technical field [0001] The invention relates to the technical field of chemical coatings, in particular to a connection water-based varnish used for offset printing. Background technique [0002] Printing and glazing is a method of using a printing machine to print one or two glazing oils on the surface of the copy that has all completed the graphic printing process, so that the surface of the printed matter can obtain a bright film layer. Printing and glazing can enhance the light resistance of the ink, increase the heat and moisture resistance of the ink layer, and play a role in protecting imprints and beautifying products. With the development of society, mankind's awareness of the protection of the living environment has also been increasing. For the printing industry, many requirements and restrictions on hygiene, environmental protection, labor protection, etc. have been gradually increased, especially the requirements for food packaging printing are more stringent, only i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14B41F23/08C09D133/08C09D123/06C09D131/04
Inventor 舒泉水胡德平卢明
Owner HUIZHOU KAIHUI CHEM
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