Yellowing-resistant UPE transparent primer, preparation method and application of yellowing-resistant UPE transparent primer in paper paint spraying

A transparent primer and anti-yellowing technology, used in paper, papermaking, paper coatings, etc., can solve problems such as affecting the appearance of patterns and easy yellowing of the paint film, achieving good compatibility, hard paint film, and improved hardness. Effect

Inactive Publication Date: 2020-05-19
成都迪泰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are following defects in the above-mentioned prior art scheme: after the unsaturated polyester primer is sprayed on the paper, it is affected by the light, and the paint film is easy to turn yellow. When printing patterns on the primer coating film, the yellowing primer will Affects the rendering of patterns

Method used

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  • Yellowing-resistant UPE transparent primer, preparation method and application of yellowing-resistant UPE transparent primer in paper paint spraying
  • Yellowing-resistant UPE transparent primer, preparation method and application of yellowing-resistant UPE transparent primer in paper paint spraying
  • Yellowing-resistant UPE transparent primer, preparation method and application of yellowing-resistant UPE transparent primer in paper paint spraying

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Table 1 is each raw material and weight of a kind of anti-yellowing UPE transparent primer of embodiment 1

[0048] raw material Weight (kg) raw material Weight (kg) Unsaturated polyester resin 60 Dibutyl phthalate 4 diphenylmethane diisocyanate 32 UV-9 1 Toluene 35 Vinyltrimethoxysilane 0.3 Modified Nano Calcium Carbonate 5 Cellulose ether 0.5 Nano Titanium Dioxide 3 Anti-settling agent BYK420 0.5 Zinc stearate 8 Dispersant 731A 0.4 Mica powder 3 HX-2500 defoamer 0.5 talcum powder 5 BYK-333 0.1 Silica 1

[0049] Wherein the preparation method of modified nano-calcium carbonate is: 1) 10kg of nano-calcium carbonate is added into 40kg of absolute ethanol and ultrasonically dispersed for 20min; pH to 5 to obtain a silane coupling agent solution; 3) Add the silane coupling agent solution to step 1), raise the temperature to 80°C, and continue stirring for 3 hours; 4) After ...

Embodiment 2

[0061] Table 2 is each raw material and weight of a kind of anti-yellowing UPE transparent primer of embodiment 2

[0062] raw material Weight (kg) raw material Weight (kg) Unsaturated polyester resin 65 Dibutyl phthalate 5 2,4-Toluene diisocyanate 35 UV-P 1 Xylene 35 Vinyltrimethoxysilane 0.6 Modified Nano Calcium Carbonate 8 polyacrylamide 0.5 Nano Titanium Dioxide 4 Anti-settling agent BYK420 0.75 Zinc stearate 12 Dispersant 731A 0.6 Mica powder 2 HX-2500 defoamer 1 talcum powder 3 BYK-333 0.3 Silica 2

[0063] The preparation method of the modified nano-calcium carbonate is: 1) 10kg of nano-calcium carbonate is added to 50kg of absolute ethanol for ultrasonic dispersion for 10min; 2) 10kg of silane coupling agent KH550 is dissolved in 40kg of absolute ethanol, and the pH is adjusted with acetic acid to 4, to obtain the silane coupling agent solution; 3) Add the silane coupl...

Embodiment 3

[0072] Table 3 is each raw material and weight of a kind of anti-yellowing UPE transparent primer of embodiment 3

[0073]

[0074] Wherein the preparation method of modified nano-calcium carbonate is: 1) 10kg of nano-calcium carbonate is added to 50kg of absolute ethanol and ultrasonically dispersed for 20min; 2) 7kg of silane coupling agent KH550 is dissolved in 40kg of absolute ethanol, and adjusted by acetic acid solution pH to 4.5 to obtain a silane coupling agent solution; 3) Add the silane coupling agent solution to step 1), raise the temperature to 100°C, and continue stirring for 3 hours; 4) After the stirring, wash 4 times with absolute ethanol, and The filter cake is dried at 60°C, and then ground to obtain modified nano-calcium carbonate.

[0075] A preparation method of anti-yellowing UPE transparent primer, same as embodiment 1.

[0076] The application of a kind of anti-yellowing UPE transparent primer on paper spray paint, the specific application steps are...

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Abstract

The invention relates to an anti-yellowing UPE transparent primer, a preparation method and application of the anti-yellowing UPE transparent primer in paper paint spraying, and belongs to the technical field of paper spraying. The anti-yellowing UPE transparent primer comprises, by weight part, 60-70 parts of an unsaturated polyester resin, 30 to 35parts of a polyisocyanate, 35 to 40 parts of a solvent, 5 to 8 parts of modified nano calcium carbonate, 3-5 parts of nano titanium dioxide, 8-10 parts of zinc stearate, 2-3 parts of mica powder 3 to 5 parts of talcum powder, 1-2 parts of white carbon black, 4-6 parts of dibutyl phthalate, 1-2 parts of an ultraviolet light absorber, 0.3-0.6 part of vinyltrimethoxysilane, 0.2-0.5 part of a thickener, 0.5-1 part of an anti-settling agent, 0.4-0.8part of a dispersing agent, 0.5-1.5 parts of a defoaming agent and 0.1-0.5 part of a leveling agent. According to the prepared UPE transparent primer,paint film is not prone to yellowing, and therefore the paper printing effect can be improved.

Description

technical field [0001] The invention relates to the technical field of paper spraying, in particular to an anti-yellowing UPE transparent primer, a preparation method and its application on paper spraying. Background technique [0002] The traditional paper varnishing method is to stick a layer of polyethylene or polypropylene film on the paper. The construction process includes gluing, laminating, etc., and it is necessary to wait for the interlayer adhesive to cure. The overall production efficiency is low and the durability of the plastic film is difficult. Guaranteed, when the product is used for a long time, the film is easy to peel off from the corners. As the demand for paper products in my country continues to rise, book covers, advertising posters, commodity outer packaging cartons, decorative paper bags, etc. need to be coated and decorated before use. Paper spray paint is to apply paint to paper pages through a certain coating method The surface is then dried to f...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): D21H19/62D21H19/38D21H19/46D21H19/40D21H19/64D21H19/52D21H19/58D21H21/14D21H23/50D21H25/06D21G1/02
CPCD21G1/02D21H19/38D21H19/385D21H19/40D21H19/46D21H19/52D21H19/58D21H19/62D21H19/64D21H21/14D21H23/50D21H25/06
Inventor陈洪章杨代富
Owner成都迪泰化工有限公司