Method for preparing waterborne plastic toy paint

A plastic toy, water-based technology, applied in the direction of latex paint, coating, etc., can solve the problems of low gloss, poor adhesion, low hardness and so on

Inactive Publication Date: 2010-06-09
SHANGHAI HUAYI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-based plastic paint is an environmentally friendly paint, but the current commercially available water-based plastic paint has the disadvantages of excessive soluble heavy metal content, which is not suitable for toy coating, poor adhesion, low gloss, and low hardness. These problems need to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 25g of wetting and dispersing agent BYK-190, 34.9g of water, 0.1g of defoamer BYK-022 and 40g of diketopyrrolopyrrole colored pigments were stirred and pre-dispersed until there was no raw powder. After high-speed dispersion for 40 minutes, the Carry out sand grinding in a basket sand mill until the fineness is below 20 μm to obtain color paste, take 8 g of color paste and add to 57 g of acrylic emulsion A, 11 g of acrylic emulsion B, 11.4 g of deionized water, 2-amino- 0.3g 2-methyl-1-propanol organic amine neutralizer, 0.2g TEGO Wet KL245 leveling agent, 0.2g BYK-022 defoamer, 2g propylene glycol butyl ether, trimethylpentanediol monoisobutyrate Add 6.5g of ester and 3g of wax emulsion to the mixed solution, stir at 200-300rpm for 20min, add 0.4g of associative polyurethane thickener, stir at 200-300rpm for 20min, until the viscosity reaches 100s to obtain water-based plastic toy paint, the paint film is attached to ABS Strength level 1, gloss 84, hardness 102.2s.

Embodiment 2

[0019] Add 75g of rutile titanium dioxide to the mixture of 7.5g of wetting and dispersing agent BYK-190, 17.4g of water, and 0.1g of defoamer BYK-022, stir at a slow speed for pre-dispersion until there is no raw powder, and then disperse at high speed for 30 minute. Perform sand grinding in a basket sand mill to obtain a color paste with a fineness below 20 μm. Acrylic emulsion A52.7g, acrylic emulsion B10.8g, organic amine neutralizer 0.3g, TEGO Wet KL245 leveling agent 0.2g, BYK-022 defoamer 0.1g, propylene glycol butyl ether 5g, trimethyl monoisobutyrate 7g of pentyl glycol ester and 3g of wax emulsion were mixed evenly under slow stirring conditions, then 20.5g of color paste was added, stirred at 200-300rpm for 25min, 0.4g of associative polyurethane thickener was added, and stirred at 200-300rpm for 20min, until When the viscosity reaches 110s, water-based plastic toy paint is obtained. The adhesion of the paint film on ABS is grade 1, the gloss is 82, and the hardnes...

Embodiment 3

[0021] Add 66.2g of acrylic emulsion A to the paint mixing tank, then slowly add 13.5g of acrylic emulsion B, 4.1g of deionized water, 0.4g of organic amine neutralizer, 0.2g of TEGO WetKL245 leveling agent, and BYK-022 disinfectant under slow stirring. Foam agent 0.2g, propylene glycol butyl ether 3g, trimethylpentanediol monoisobutyrate 7g, wax emulsion 5g, stir at 200-300rpm for 20min, add associative polyurethane thickener 0.4g under stirring, stir at 200-300rpm After 20 minutes, until the viscosity reaches 100s, water-based plastic toy paint is obtained. The adhesion of the paint film on ABS is grade 1, the gloss is 89, and the hardness is 117.6s.

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Abstract

The invention provides a method for preparing a waterborne plastic toy paint. The paint comprises the following components in percentage by weight: 50 to 70 percent of copolymer emulsion A of butyl acrylate, styrene and acrylonitrile, 10 to 15 percent of copolymer emulsion B of methyl methacrylate, styrene and N-methylol acrylamide, 2 to 5 percent of propylene glycol butyl ether film forming auxiliary agent, 5 to 7 percent of mono-isobutyric acid trimethyl pentanediol ester film forming auxiliary agent, 0.1 to 0.4 percent of polysiloxane and polyester copolymer leveling agent, 0.1 to 0.4 percent of polysiloxane mixture defoaming agent, 0.1 to 0.4 percent of associative type polyurethane thickener, 0.1 to 0.4 percent of 2-amino-2-methyl-1-propanol organic amine neutralizer, 2 to 6 percent of hard polyethylene wax emulsion, 0 to 15 percent of deionized water and 0 to 25 percent of color paste; and the preparation method comprises the following steps of: adding all the acrylic acid emulsion, deionized water, organic amine neutralizer, leveling agent, defoaming agent, film forming auxiliary agents and wax emulsion to a paint mixing kettle with stirring at a rotary speed of 60 to 120rpm, stirring the mixture at a rotary speed of 200 to 300rpm for 10 to 20min, adding the color paste to the mixture at a rotary speed of 60 to 120rpm, stirring the mixture at a rotary speed of 200 to 300rpm for 10 to 20min, adding the thickener until the viscosity of the mixture meets the index of 70 to 110s(paint-1 cup) and the adhesive force of the spraying plate paint film reaches the first grade(by the cut test on an ABS plate), and filtering and packaging.

Description

1. Technical field [0001] The invention relates to a preparation method of a water-based plastic toy paint, more specifically to a preparation method of a water-based acrylate copolymer composition paint for coating plastic toys. 2. Background technology [0002] my country is the world's largest toy exporter, accounting for about 70% of the international toy market sales. With the strengthening of people's awareness of environmental protection, toy safety standards are more stringent, so water-based plastic toy paint has a broad space for development. Water-based plastic paint is an environmentally friendly paint, but the current commercially available water-based plastic paint has the disadvantages of excessive soluble heavy metal content, unsuitable for toy coating, poor adhesion, low gloss, and low hardness. These problems need to be solved. 3. Contents of the invention [0003] The present inventors have proposed a complete solution for the preparation of water-based...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/02
Inventor 郭明白云兵
Owner SHANGHAI HUAYI FINE CHEM CO LTD
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