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A kind of water-based dumb silver transfer coating and preparation method thereof

A technology for transferring paint and dumb silver, applied in the field of paint, can solve problems such as hue deviation, and achieve the effect of high porosity, good applicability, uniform and single hue

Active Publication Date: 2016-04-13
常德市德源招商投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a water-based dumb silver transfer coating, which can solve the problem of hue deviation

Method used

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  • A kind of water-based dumb silver transfer coating and preparation method thereof
  • A kind of water-based dumb silver transfer coating and preparation method thereof
  • A kind of water-based dumb silver transfer coating and preparation method thereof

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preparation example Construction

[0041] The preparation method of the water-based polyurethane of the present invention adopts the internal emulsification method, that is, the molecular chain contains hydrophilic groups, and no external emulsifier is needed. In the preparation process, firstly, isophorone diisocyanate and polyester diol are used to synthesize - The prepolymer of the NCO end group is then added with an alcohol chain extender and a hydrophilic chain extender for chain extension reaction, and finally dispersed in water dissolved in triethylamine to obtain high molecular weight waterborne polyurethane by chain extension. Since a hydrophilic group is introduced into the polyurethane polymer, it can be dissolved in water, so it can be used as a water dispersion of water-based dumb silver transfer coating, which can be uniformly dispersed in deionized water. Above-mentioned polyester diol is preferably polycaprolactone diol, and described alcohol diffusion agent is preferably 1,4-butanediol, and desc...

Embodiment 1

[0052] Distill 220g of polycaprolactone diol at 130°C for 2h and then cool down to room temperature, add 100g of isophorone diisocyanate and 3g of stannous octoate and react at 80-140°C for 2-3h, After cooling down, add 10g of dimethylolpropionic acid and 12g of 1,4-butanediol, continue the reaction for 4 to 8 hours, then cool down and add 12g of triethylamine and 53g of N-methylpyrrolidone as salt forming agents, and finally add 590g of deionized water to carry out Chain extension to obtain water-based polyurethane.

Embodiment 2

[0054] Distill 160g of polycaprolactone diol at 130°C for 2h and then cool down to room temperature, add 120g of isophorone diisocyanate and 4g of stannous octoate and react at 80-140°C for 2-3h, After cooling down, add 18g of dimethylolpropionic acid and 14g of 1,4-butanediol, continue the reaction for 4-8 hours, then cool down and add salt-forming agents 18g of triethylamine and 53g of N-methylpyrrolidone, and finally add 613g of deionized water to carry out Chain extension to obtain water-based polyurethane.

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Abstract

The invention provides a waterborne matte silver transfer painting and a preparation method therefor. The painting comprises 60 wt%-85 wt% of waterborne polyurethane, 10 wt%-30 wt% of deionized water, 1 wt%-4 wt% of anti-foaming agents, 1.5 wt%-5.0 wt% of gas-phase alumina, 0.5 wt%-1.5 wt% of wetting dispersants and 1.0 wt%-3.0 wt% of preservatives. Through addition of gas-phase alumina into the waterborne matte silver transfer painting, gas-phase alumina can form an uneven slightly-rough surface on the surface of a painting film. When light is incident, diffuse reflection is formed, thus the painting film is in a no light or matte state, and therefore the purpose of light extinction is achieved. Because of the small aperture and good of gas-phase alumina, the hue of the painting film is even and single.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based dumb silver transfer coating and a preparation method thereof. Background technique [0002] With the continuous improvement of living standards, people have put forward new requirements for the packaging paper of packaging boxes. Consumers feel that high-gloss coatings are more reflective after film formation, which is more harmful to human eyes; at the same time, consumers' aesthetic concepts are increasingly inclined to leisure, fashion and personalization. Therefore, paints with different gloss are required to form different products to meet people's different needs. The high-grade matte silver paint attracts consumers with its natural, noble, elegant and metallic texture. In addition, the matte silver finish is popular with paint manufacturers and consumers because it hides minor paint film imperfections for a uniform appearance. According to the characteri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D175/06C09D7/12C08G18/66C08G18/42C08G18/10
Inventor 余赞白永平陆仕稳
Owner 常德市德源招商投资有限公司
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