Environment-friendly strippable water-based paint and preparation method thereof

A water-based paint, environmental protection technology, applied in the direction of cellulose paint, polyamide paint, coating, etc., can solve the problems of deviation, environmental pollution, not good volatilization, etc., to achieve uniform film formation, fast film formation, flow The effect of flatness

Active Publication Date: 2011-04-27
哈尔滨大东方新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many strippable coatings in the society, but they are basically non-water-soluble stripping coatings. The solvents used are organic solvents, and the organic solvents used have low volatility. It cannot volatilize well under the condition of high humidity, and the residual organic solvent cannot meet the corresponding national inspection standards. The safety requirements of daily necessities such as cigarettes, the use of organic solvents in raw materials lead to high production costs and serious environmental pollution, which restricts the rapid development of the industry and deviates from the development concept of green environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The raw material composition of present embodiment:

[0028] Carboxylated fiber resin 13

[0029] Polyamide resin 1.8

[0030] Ethylene glycol butyl ether 25

[0031] Dimethylethanolamine 1.1

[0032] Deionized water 59

[0033] Ammonia 0.1

[0034] Prepare an environmentally friendly peelable water-based coating. The above data is a specific formula. The cellulose resin selected in this implementation case is carboxylated fiber resin, and the carboxyl content of the carboxylated cellulose resin is 5.5%; The melting range of carboxylated cellulose resin is 155°C-230°C; the average molecular weight of carboxylated fiber resin is 16,000-60,000; the glass transition temperature range is 102°C-182°C.

[0035] Wherein said polyamide resin is selected from neutral polyamide resin in reactive polyamide resin and neutral polyamide resin; said polyamide resin is selected from viscosity 80-200cp / 25°C, acid value: ≤6mgKOH / g , Amine value: ≤6mgKOH / g, softening point 105-115°C...

Embodiment 2

[0042] The raw material composition of present embodiment:

[0043] Carboxylated fiber resin 12

[0044] Polyamide resin 1.7

[0045] Ethylene glycol butyl ether 24

[0046] Dimethylethanolamine 1.2

[0047] Deionized water 61

[0048] Ammonia 0.1

[0049] Prepare an environmentally friendly peelable water-based coating. The above data is a specific formula. The cellulose resin selected in this implementation case is carboxylated fiber resin, and the carboxyl content of the carboxylated cellulose resin is 5.5%; The melting range of carboxylated cellulose resin is 155°C-230°C; the average molecular weight of carboxylated cellulose resin is 16,000-60,000; the glass transition temperature range is 102°C-182°C.

[0050] Wherein said polyamide resin is selected from neutral polyamide resin in reactive polyamide resin and neutral polyamide resin; said polyamide resin is selected from viscosity 80-200cp / 25°C, acid value: ≤6mgKOH / g , Amine value: ≤6mgKOH / g, softening point 105-1...

Embodiment 3

[0057] The raw material composition of present embodiment:

[0058] Carboxylated fiber resin 10

[0059] Polyamide resin 2.8

[0060] Ethylene glycol butyl ether 26

[0061] Dimethylethanolamine 3.1

[0062] Deionized water 58

[0063] Ammonia 0.1

[0064] Prepare an environmentally friendly peelable water-based coating. The above data is a specific formula. The cellulose resin selected in this implementation case is carboxylated fiber resin, and the carboxyl content of the carboxylated cellulose resin is 5.5%; The melting range of carboxylated cellulose resin is 155°C-230°C; the average molecular weight of carboxylated cellulose resin is 16,000-60,000; the glass transition temperature range is 102°C-182°C.

[0065] Wherein said polyamide resin is selected from neutral polyamide resin in reactive polyamide resin and neutral polyamide resin; said polyamide resin is selected from viscosity 80-200cp / 25°C, acid value: ≤6mgKOH / g , Amine value: ≤6mgKOH / g, softening point 105-1...

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Abstract

The invention relates to the field of package paint in daily living, in particular to an environment-friendly strippable water-based paint and a preparation method thereof. The strippable paint comprises the following components in parts by weight: 8 to 16 parts of cellulose resin, 1 to 4 parts of polyamide resin, 20 to 40 parts of cosolvent, 40 to 70 parts of deionized water, and 0 to 2 parts of PH regulator, and the paint is prepared by a reverse filling method. The strippable paint prepared by the method is an environment-friendly and strippable water-based paint which has the advantages of good leveling property, fast film forming and uniform film forming; the film forming thickness is between 65 and 85 microns, the paint is easy to strip, is green and environment-friendly and has no pollution, has no or little residues of the solvent and reacting monomer; and the filmed paint resists aging, is easy to strip, has the advantages of good weather resistance, safety, high efficiency and lower cost, is economical and convenient, and has good market popularization prospect.

Description

technical field [0001] The invention relates to the field of packaging coatings in daily life and its preparation, in particular to an environmentally friendly peelable water-based coating and its preparation method Background technique [0002] After the reform and opening up, my country's economy has achieved rapid development, people's material living standards are constantly improving, and the development of the packaging industry has attracted more and more attention. Therefore, peeling coatings and their preparation have attracted more attention in the packaging industry. Compared with foreign countries, there is a big gap between my country's environmentally friendly strippable water-based coatings and their preparation methods. There are still many departments that can use environmentally friendly peelable water-based coatings, and the market demand is huge, so this invention will make a great contribution to the development of many industries in society and achieve e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/26C09D101/18C09D101/14C09D101/12C09D101/02C09D133/00C09D177/00
Inventor 张立伟张伟赵国宝于洋王乃军王长胜李玉良李洪刚刘志刚
Owner 哈尔滨大东方新材料科技股份有限公司
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