Environment-friendly watersoluble tintage paint, preparation and uses thereof

An environmentally friendly, water-based technology, applied in paper coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems of restricting the application range of colored coatings, environmental pollution in production and use, and high content of volatile organic compounds. The effect of low cost, good printing adaptability, and good solvent resistance

Active Publication Date: 2009-04-08
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing coloring coatings are solvent-based systems, and a large amount of organic solvents are used. On the one hand, the high content of volatile organic compounds (VOCs) causes serious pollution to the production and use environment, and on the other hand, there is also the problem of high solvent costs.
In addition, t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A preparation method of an environment-friendly water-based coloring paint, the method comprising the following steps:

[0049] (1) Prepare materials according to the following components and content (parts by weight):

[0050] components

parts by weight

Water-based resin acrylic modified polyurethane emulsion

40

Co-solvent ethanol

10

Deionized water

46.25

Coalescent n-butanol

3

pH adjuster ammonia water

0.2

Anti-abrasion agent silica sol

0.1

Wetting agent nonylphenol polyoxyethylene ether

0.2

Rheology control agent hydrophobically modified alkali-swellable acrylic acid

lotion

0.2

Defoamer Modified Polysiloxane

0.05

[0051] (2) Put the water-based resin into the reaction kettle, and stir evenly at a low speed of 300-500 rpm;

[0052] (3) After mixing the co-solvent, deionized water and film-forming aids evenly, add them to the reaction kettle w...

Embodiment 2

[0058] A preparation method of an environment-friendly water-based coloring paint, the method comprising the following steps:

[0059] (1) Prepare materials according to the following components and content (parts by weight):

[0060] components

parts by weight

Water-based resin acrylic emulsion

60

Co-solvent isopropanol

15

[0061] Deionized water

21.5

Coalescent propylene carbonate

1

pH adjuster 2-Amino-2-methyl-1-propanol

(AMP-95)

0.2

Anti-abrasion agent polyethylene emulsified wax

2

Wetting agent acetylene glycol

0.1

Defoamer modified silicone defoamer

0.2

[0062] The Tg of the acrylic emulsion is 50°C and the molecular weight is 500,000;

[0063] (2) Put the water-based resin into the reaction kettle, and stir evenly at a low speed of 300-500 rpm;

[0064] (3) After mixing the co-solvent, deionized water, and film-forming aids evenly, add them to...

Embodiment 3

[0070] A preparation method of an environment-friendly water-based coloring paint, the method comprising the following steps:

[0071] (1) Prepare materials according to the following components and content (parts by weight):

[0072] components

parts by weight

Water-based resin water-based polyester

50

Co-solvent propylene glycol monomethyl ether

25

Deionized water

23.1

pH adjuster ammonia water

0.2

Anti-abrasion agent polyether silicone

1

Wetting agent nonylphenol polyoxyethylene ether

0.5

[0073] Rheology Control Agent Condensed Polyurethane Emulsion

0.1

Defoamer Nonionic Surfactant

0.1

[0074] The Tg of water-based polyester is 30°C and the molecular weight is 50,000;

[0075] (2) Put the water-based resin into the reaction kettle, and stir evenly at a low speed of 300-500 rpm;

[0076] (3) After mixing the co-solvent, deionized water and film-forming a...

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Abstract

The invention relates to an environment protective type water coloring coating as well as a preparation method and an application thereof. The water coloring coating consists of the following components and contents (weight portions): 40 to 60 portions of water-base resin; 10 to 25 portions of latent solvent; 20 to 25 portions of de-ionized water; 0 to 3 portions of film forming additive; 0.1 to 2 portions of pH value regulator, 0.1 to 2 portions of scratch-resistant agent; 0.1 to 0.5 portion of wetting agent, 0 to 0.2 portion of rheological controlling agent and 0.05 to 0.2 portion of foam killer. Compared with the prior art, the invention has the advantages of environment protection performance, low production cost and good printing suitability, being incapable of destroying the bottom layer during coating process and avoiding lifting phenomenon generated by solvent coating; and the environment protective type water coloring coating can be directly used for replacing the existing solvent coloring coating through pilot scale production confirmation.

Description

technical field [0001] The invention relates to a coloring paint, in particular to an environment-friendly water-based coloring paint and its preparation method and application. Background technique [0002] A layer of yellow transparent paint is often applied to transfer cardboard or composite cardboard to make the silver card appear like a gold card. [0003] Most of the existing coloring coatings are solvent-based systems, which use a large amount of organic solvents. On the one hand, the high content of volatile organic compounds (VOCs) causes serious pollution to the production and use environment, and on the other hand, there is also the problem of high solvent costs. In addition, there are some transparent water-based coloring paints on the market, but the dye pastes that match them contain a large amount of organic solvents such as esters and glycol ethers, and even the water-based paint itself contains a small amount of similar solvents. [0004] Above-mentioned va...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D167/00C09D175/04D21H19/44D21H19/58D21H19/62
Inventor 陈智张芳芳
Owner SHANGHAI WEIKAI CHEM
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