Environment-protection coating printing adhesive and its preparing method

A paint printing and adhesive technology, applied in the direction of adhesive types, polyurea/polyurethane adhesives, adhesives, etc., can solve the problems of unreachable formaldehyde content and product export restrictions.

Inactive Publication Date: 2007-03-28
合肥安大天辐新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most pigment printing adhesives on the market contain a certain amount of N-hydroxyacrylamide cross-linking monomer, which will release formaldehyde during baking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The specific synthesis operation method is as follows:

[0043] (1) Preparation of aqueous dispersion of vinyl-terminated urethane acrylate monomer

[0044] Put ethylene oxide diol-type polyether diol into the stainless steel reaction kettle, vacuum dehydrate at 100-120°C for 2h; then cool down to 80°C, add toluene diisocyanate, and keep warm at 85-90°C for 2h; cool down to 75°C ℃, add hydrophilic monomer dimethylolpropionic acid, chain extender diethylene glycol, methacrylate-β-hydroxypropyl methacrylate, and keep warm for 3 hours. During the reaction, if the viscosity is high, acetone should be added. Then mix with acrylate mixed monomer (1:9), add emulsifier Pingpingjiao to prepare hydrophilic polyurethane prepolymer / vinyl monomer mixture, cool down to below 30°C, add neutralizing agent triethylamine, Stir and react for 2-5 minutes, add 2 to 4 times the amount of water under high-speed stirring (1400 rpm-2500 rpm) to disperse into an aqueous emulsion, and remove ac...

Embodiment 2

[0060] The specific synthesis operation method is as follows:

[0061] (1) Preparation of aqueous dispersion of vinyl-terminated urethane acrylate monomer

[0062] Put polyoxypropylene-oxyethylene polyol in a stainless steel reaction kettle, dehydrate in vacuum at 100-120°C for 2 hours; then cool down to 80°C, add cyclohexane diisocyanate, keep warm at 85-90°C for 2 hours; cool down to 75°C , add hydrophilic monomer dimethylol propionic acid, chain extender diethylene glycol, hydroxypropyl acrylate, keep warm for 3 hours. During the reaction, if the viscosity is high, acetone should be added. Then mix with acrylate mixed monomer (2:8), add emulsifier Pingpingjia0, ​​prepare hydrophilic polyurethane prepolymer / vinyl monomer mixture, cool down to below 30°C, add neutralizing agent triethylamine, stir React for 2-5 minutes, add 2 to 4 times the amount of water under high-speed stirring (1400 rpm-2500 rpm) to disperse into an aqueous emulsion, and remove acetone in a vacuum to p...

Embodiment 3

[0078] The specific synthesis operation method is as follows:

[0079] (1) Preparation of aqueous dispersion of vinyl-terminated urethane acrylate monomer

[0080] Put polyoxypropylene diol into the stainless steel reaction kettle, vacuum dehydrate at 100-120°C for 2 hours; then cool down to 80°C, add isophorone diisocyanate, keep warm at 85-90°C for 2 hours; cool down to 75°C, Add hydrophilic monomer dimethylolpropionic acid, chain extender butylene glycol, and hydroxyethyl endenoate, and keep warm for 3 hours. During the reaction, if the viscosity is high, acetone should be added. Then mix with acrylate mixed monomer (3:7), add emulsifier Pingping 0 to prepare hydrophilic polyurethane prepolymer / vinyl monomer mixture, cool down to below 30°C, add neutralizing agent triethylamine, stir React for 2-5 minutes, add 2 to 4 times the amount of water under high-speed stirring (1400 rpm-2500 rpm) to disperse into an aqueous emulsion, and remove acetone in a vacuum to prepare vinyl...

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PUM

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Abstract

The invention relates to an environment protecting resin-bonded pigment printing adhesive that is made up according the following steps: adding 0.5-1% polyacrylic acid salt into polyurethane acrylic ester emulsion, adjusting pH value to 7-8 to gain cream, and the viscosity is 30-60Pa.S. The preparation of polyurethane acrylic ester emulsion includes the following steps: gaining end ethenyl polyurethane performed polymer from polyether glycol, isocyanic ester and auxiliary agent, mixing the preformed polymer with acrylic ester monomer and water to make dispersing liquid, irradiating for 30-50 minutes at 1.5-2.5KGy radiation dose. The content of formaldehyde is below 5ppm and APEO below 5ppm in the adhesive. The product is environment protection.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof, in particular to an environment-friendly pigment printing adhesive and a preparation method thereof. Background technique [0002] Pigment printing is a printing method that uses adhesives to fix pigments that have no affinity and reactivity to fabrics on fabrics. The process is simple, the color is bright, and it has the characteristics of washing resistance, friction resistance and strong fastness. At present, most pigment printing adhesives on the market contain a certain amount of N-hydroxyacrylamide cross-linking monomer, which will release formaldehyde during baking and storage, so that the free formaldehyde content on the fabric cannot meet the requirements of underwear and children's clothing, and the products are exported. restricted. At present, most of the high-quality, environmentally friendly pigment printing adhesives or printing pastes are imported from abroad to me...

Claims

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Application Information

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IPC IPC(8): D06P1/52C09J175/14C09D175/14
Inventor 杨建军瞿贤超崔国庭吴庆云张建安吴明元
Owner 合肥安大天辐新材料有限公司
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