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Environment-friendly type moldable aqueous transfer coating, preparation and use thereof

A transfer coating, environment-friendly technology, applied in the direction of paper coating, polyurea/polyurethane coating, coating, etc., can solve the problems of production and use environmental pollution, high content of volatile organic compounds, high solvent cost, etc., and achieve good printing adaptability , low production cost, and wide molding temperature range

Active Publication Date: 2009-04-15
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing laser transfer coating is a solvent-based system, which uses 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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of an environment-friendly moldable water-based transfer coating, the method comprising the following steps:

[0045] (1) Prepare materials according to the following components and content (parts by weight):

[0046] components

parts by weight

Water-based resin acrylic modified polyurethane emulsion

40

[0047] Co-solvent ethanol

20

Deionized water

39.45

pH adjuster ammonia water

0.2

Wetting agent nonylphenol polyoxyethylene ether

0.1

Leveling agent modified silicone

0.2

Defoamer Modified Polysiloxane

0.05

[0048] (2) Put the water-based resin into the reaction kettle, and stir evenly at a low speed of 300-500 rpm;

[0049] (3) After mixing the co-solvent and deionized water evenly, add it to the reaction kettle while stirring, and stir at a low speed of 300-500 rpm for 5-10 minutes;

[0050] (4) Adding a pH regulator in the reactor, so tha...

Embodiment 2

[0055] A preparation method of an environment-friendly moldable water-based transfer coating, the method comprising the following steps:

[0056] (1) Prepare materials according to the following components and content (parts by weight):

[0057] components

parts by weight

Water-based resin water-based acrylic emulsion

70

Co-solvent ethanol

10

Deionized water

19

pH adjuster ammonia water

0.2

Wetting agent acetylene glycol

0.5

Leveling agent modified silicone

0.1

Defoamer modified silicone defoamer

0.2

[0058] The glass transition temperature Tg range of the water-based acrylic emulsion is 50°C, and the molecular weight is 500,000;

[0059] (2) Put the water-based resin into the reaction kettle, and stir evenly at a low speed of 300-500 rpm;

[0060] (3) After mixing the co-solvent and deionized water evenly, add it to the reaction kettle while stirring, and stir at a low speed of...

Embodiment 3

[0066] A preparation method of an environment-friendly moldable water-based transfer coating, the method comprising the following steps:

[0067] (1) Prepare materials according to the following components and content (parts by weight):

[0068] components

parts by weight

Water-based resin polyurethane aqueous dispersion

55

Co-solvent ethanol

15

Deionized water

29.35

pH adjuster ammonia water

0.2

Wetting agent nonylphenol polyoxyethylene ether

Hexametaphosphate

0.1

0.1

Leveling agent modified silicone

0.15

Defoamer Modified Polysiloxane

0.1

[0069] (2) Put the water-based resin into the reaction kettle, and stir evenly at a low speed of 300-500 rpm;

[0070] (3) After mixing the co-solvent and deionized water evenly, add it to the reaction kettle while stirring, and stir at a low speed of 300-500 rpm for 10 minutes;

[0071] (4) Adding a pH regulator in the reactor, so ...

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Abstract

The invention relates to an environment-friendly moldable waterborne transfer coating, a preparation method and an application thereof, wherein, the waterborne transfer coating takes the following components with the contents (parts by weight) as raw materials: 40 to 70 parts of waterborne resin; 10 to 20 parts of cosolvent; 18 to 40 parts of deionized water; 0.1 to 2 parts of pH value regulator; 0.1 to 0.5 part of wetting agent; 0.1 to 0.2 part of leveling agent; and 0.05 to 0.2 part of defoamer. Compared with the prior art, the environment-friendly moldable waterborne transfer coating has the following advantages of environmental protection and cost advantages, good printing adaptability, relatively wide range of suitable molding temperature during the molding, good molding effect and easy production control; furthermore, the environment-friendly moldable waterborne transfer coating can be directly used for replacing the existing solvent laser transfer coating by the pilot scale production confirmation.

Description

technical field [0001] The invention relates to a water-based transfer paint, in particular to an environment-friendly moldable water-based transfer paint and its preparation method and application. Background technique [0002] At the end of the 20th century, compared with the traditional composite process, the transfer aluminum plating process set off a revolution in the packaging material industry due to its advantages of low resource consumption, environmental protection, strong metallic appearance, laser effect, and low cost. Tailor-made transfer coatings for aluminum plating (hereinafter referred to as transfer coatings) have been widely used. The fundamental properties of laser transfer coatings are their release and moldable effects. Peelability refers to the ease of peeling off the base film (PET polyester film, OPP stretched polypropylene film, etc.), and the quality of the peelability can generally be characterized by the peeling force between the transferred coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D129/04C09D127/06C09D175/04D21H19/04D21H19/58D21H19/60D21H19/62
Inventor 虞明东陈智张芳芳
Owner SHANGHAI WEIKAI CHEM
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