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White coating for ultraviolet light polymerization tinplate and preparation method of white coating

A technology of white codine and tinplate, applied in the field of coatings, can solve the problems of tinplate with low adhesion, low curing rate, and poor etching resistance, etc., to improve adhesion and cooking resistance, and improve bending resistance Corresponds to the effect of strong etching resistance and etching resistance

Active Publication Date: 2014-05-21
JIANGSU HIMONIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, in the field of UV curing tinplate coatings, the main problems are: traditional formula coatings have low adhesion to tinplate, poor etching resistance, poor cooking resistance, and low curing rate, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The UV-curable white curd of this embodiment has a raw material formula consisting of the following components in parts by weight:

[0036] Polyester acrylate resin: 25 parts;

[0037] Titanium dioxide: 40 parts;

[0038] Active monomer: 29.5 parts;

[0039] Photosensitizer: 4 parts;

[0040] Adhesion promoter: 0.5 parts;

[0041] Substrate wetting agent: 0.5 parts;

[0042] Leveling agent: 0.3 parts;

[0043] Defoamer: 0.2 parts;

[0044] Prepare the above-mentioned raw materials in proportion. First, the resin and titanium dioxide are fully dispersed by a disperser, and then ground twice by a three-roller machine to fully refine the titanium dioxide. Then add active monomers and photosensitizers respectively, and finally add adhesion Accelerator, substrate wetting agent, leveling agent and defoamer. The resulting mixture was well stirred and mixed under a disperser for 1 hour.

[0045] When in use, bake the pre-prepared tinplate sheet at 190°C for 20 minutes t...

Embodiment 2

[0050] The UV-curable white curd of this embodiment has a raw material formula consisting of the following components in parts by weight:

[0051] Polyester acrylate resin: 30 parts;

[0052] Titanium dioxide: 40 parts;

[0053] Active monomer: 24.5 parts;

[0054] Photosensitizer: 4 parts;

[0055] Adhesion promoter: 0.5 parts;

[0056] Substrate wetting agent: 0.5 parts;

[0057] Leveling agent: 0.3 parts;

[0058] Defoamer: 0.2 parts;

[0059] Prepare the above-mentioned raw materials in proportion. First, the resin and titanium dioxide are fully dispersed by a disperser, and then ground twice by a three-roller machine to fully refine the titanium dioxide. Then add active monomers and photosensitizers respectively, and finally add adhesion Accelerator, substrate wetting agent, leveling agent and defoamer. The resulting mixture was well stirred and mixed under a disperser for 1 hour.

[0060] Bake the pre-prepared tinplate sheet at 190°C for 20 minutes to remove the ...

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Abstract

The invention discloses a white coating for an ultraviolet light polymerization tinplate and a preparation method of the white coating. The white coating comprises the following raw materials in parts by weight: 25-30 parts of polyester acrylic resin, 35-40 parts of titanium dioxide, 25-30 parts of activated monomer, 4-8 parts of photosensitizer, 0.5-1 part of adhesion promoter, 0.5-1 part of base material wetting agent, 0.3-0.5 part of flatting agent and 0.2-0.5 part of antifoaming agent. The preparation method comprises the steps: after fully dispersing the polyester acrylic resin and the titanium dioxide by a dispersing machine, grinding, then respectively adding the activated monomer and the photosensitizer, and finally adding the adhesion promoter, the base material wetting agent, the flatting agent and the antifoaming agent; and fully stirring and mixing the obtained mixture under the dispersing machine to obtain the white coating. The obtained white coating is high in adhesion for the tinplate, strong in etching resistance, good in steaming and boiling resistance capacity, and high in curing rate, and is energy-saving and environment-friendly, so as to be more efficient and convenient in use.

Description

[0001] technical field [0002] The invention relates to the field of coatings, in particular to white curdine for ultraviolet curing tinplate and a preparation method thereof. Background technique [0003] Tinplate is widely used as a packaging material from the food industry to traditional industries. When printing and coloring tinplate, it must first be coated with a layer of white coating. This white primer is Bai Keding. [0004] At present, traditional curing methods are mainly used for tinplate printing. This method is accompanied by a large amount of solvent volatilization during the curing process, which not only consumes a large amount of solvent, but also takes a long time to cure, and some toxic solvents Volatilization will cause harm to users and manufacturers of products, and is an unenvironmentally friendly method. The white curdine cured by ultraviolet light (UV) will not volatilize harmful solvents, and the curing time is greatly reduced. It is a new type o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D7/12
Inventor 江益新刘丽白永平李宵常红言
Owner JIANGSU HIMONIA TECH
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