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Environment-friendly type joining material resin for printing ink

A technology for printing inks and binders, applied in the field of binder resins, can solve problems such as poor adhesion, achieve good wetting and dispersibility, strengthen interaction force, and good acid resistance.

Inactive Publication Date: 2010-11-03
NANTONG GAOMENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor adhesion of ordinary polyurethane ink binders to low-polar substrates such as polyethylene and polypropylene in the prior art, the present invention introduces allophanate high cohesion into traditional polyurethane The group improves the strength of its ink layer, and also introduces a non-polar group with low surface tension and uniform electron cloud distribution to replace some of the strong polar groups in the molecule, so as to achieve good adhesion to untreated non-polar substrates. Adhesion fastness

Method used

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  • Environment-friendly type joining material resin for printing ink
  • Environment-friendly type joining material resin for printing ink

Examples

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example 1

[0026] Preparation:

[0027] (1) Mix 5 parts by mass of hydroxyl-terminated polybutadiene and 3 parts by mass of isophorone diisocyanate evenly, heat up to 90-110°C, and react for 4 hours to make isocyanate-terminated prepolymer. The mass of isophorone-terminated isocyanate The content is 3.5%;

[0028] (2) The polyadipate sebacic acid-1,4-butanediol neopentyl glycol ester diol, the ethyl acetate of 20 mass parts, the acetic acid of 20 mass parts with terminal isocyanate prepolymer and 10 mass parts Mix isobutyl ester and 10 parts by mass of n-propyl acetate, heat up to 85°C, react for 3 hours, then add 3 parts by mass of γ-aminopropyltriethoxysilane, and keep the reaction temperature at 85°C for 1 hour, Add 10 mass parts of isopropanol and 10 mass parts of absolute ethanol;

[0029] (3) Add 5 parts by mass of aldehyde and ketone resin, 2 parts by mass of terpolymer vinyl chloride resin and 2 parts by mass of nitrocellulose, stir and mix evenly at high speed, viscosit...

example 2

10

[0033] Preparation:

[0034] (1) Mix 5 parts by mass of hydroxyl-terminated polyolefin and 3.5 parts by mass of methylcyclohexyl diisocyanate evenly, heat up to 90-110°C, and react for 4 hours to make a terminal isocyanate prepolymer. The mass content of terminal isocyanate is 3.2%;

[0035] (2) Polyadipate-1,4-butanediol-1,2-propylene glycol ester diol, 30 mass parts ethyl acetate, 15 mass parts isoacetic acid isocyanate prepolymer and 9.5 mass parts Butyl ester and 5 parts by mass of n-propyl acetate were mixed, the temperature was raised to 85°C, and reacted for 3 hours, then 2.5 parts by mass of γ-aminopropyltrimethoxysilane was added, and the reaction temperature was maintained at 85°C for 1 hour, and 10 The isopropanol of mass parts and the dehydrated alcohol of 10 mass parts;

[0036] (3) Add 5.5 parts by mass of aldehyde and ketone resin, 1.5 parts by mass of ternary polyvinyl chloride resin and 2.5 parts by mass of nitrocellulose, stir and mix evenly...

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Abstract

The invention provides an environmental protection type connection material resin for printing ink, belonging to printing ink technical field. In order to solve the problem that the surface adhesion of connection material of general polyurethane ink to substrate of low polarity such as polyethylene, polypropylene, the invention uses nonpolar groups with low surface tension and uniform electron cloud dispersion to substitute part of the strong polar groups. The ink formed by the connection material resin not only has good adhesion to polar group with higher surface tension such as PET, PA, butalso has good adhesion to nonpolar treated or non treated group with lower surface tension such as PE, PP.

Description

technical field [0001] The invention relates to a binder resin for printing ink. Background technique [0002] Plastic is a kind of polymer synthetic material. The plastic film used for packaging and printing is more and more widely used in the flexible packaging industry because of its high transparency, good strength, strong toughness, low density, and excellent chemical resistance. However, the surface tension of non-polar materials such as biaxially oriented polypropylene and polyethylene is very low. In order to improve the adhesion and composite strength of printing inks, it is often necessary to perform corona treatment on the surface to increase its surface tension. These non-polar materials After treatment, the surface tension of non-polar materials can generally reach about 38 dynes. At present, the most used binders for printing inks of such non-polar materials in China are still chlorinated polypropylene, ethylene-vinyl acetate or chlorinated vinyl-vinyl acetate....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C08L75/04C08G18/10C08G18/42C08L61/02C08L1/18C08L31/04C09D11/102
Inventor 赫长生沈峰
Owner NANTONG GAOMENG NEW MATERIAL
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