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UV (ultraviolet) curing paint and application thereof

A technology for curing coatings and pigments, which is applied in the field of coatings, and can solve the problems of temporary protection and scratch resistance that cannot be processed with metal surfaces, and achieve the effects of good metal adhesion, good scratch resistance, and high surface hardness

Active Publication Date: 2013-08-07
深圳市美丽华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of above-mentioned deficiencies in the prior art, the object of the present invention is to provide a kind of UV curable paint and application thereof, be a kind of UV curable, and can peel off from the metal surface with alkali water, play a protective paint, aim at Solving the problem that the existing UV coatings cannot be used for temporary protection of metal surface processing due to their lack of scratch resistance

Method used

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  • UV (ultraviolet) curing paint and application thereof
  • UV (ultraviolet) curing paint and application thereof

Examples

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Embodiment

[0099] The present invention is described in further detail as follows by embodiment 1-4 as shown in table 1:

[0100] Table 1

[0101]

[0102] Add the components of any proportion of Examples 1 to 4 in the above Table 1 into the container according to the stated ratio, mix well under stirring conditions, and then construct according to the following process and parameters.

[0103] Process sequence:

[0104] Substrate cleaning→paint dilution→spraying→IR baking→UV curing→surface brushing→5% NaOH solution at 70°C removal→clean water cleaning.

[0105] Process parameters:

[0106] Dilution ratio: paint: butyl acetate = 100:100;

[0107] Film thickness: 16-20um (Mitutoyo);

[0108] Cumulative UV energy: 1500~2200mj / cm2 (EIT UV Power Puck II);

[0109] Spectral range: 180~420nm;

[0110] UV lamp power: 80-120W / cm;

[0111] IR temperature: 100-110°C, time 2-3min.

[0112] The properties of the coating layer obtained in Examples 1-4 on the metal surface are shown in Tabl...

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Abstract

The invention discloses UV (ultraviolet) curing paint and application thereof. The UV curing paint comprises the following components in percentage by weight: 30-40% of high-functionality polyurethane acrylate, 10-20% of bifunctional polyurethane acrylic resin, 5-10% of acrylic ester phosphate, 5-10% of high-acid-value acrylic polyalcohol resin, 10-15% of 1,6-hexanediol diacrylate, 2-4% of photosensitizer, 1-2% of nano aluminum oxide dispersion and 15-20% of solvent. The UV photocuring paint is used for temporary protection in metal surface processing. After being subjected to UV photocuring, the UV photocuring paint can form a tough paint layer on the surface of metal; and the paint layer has favorable metal adhesive force, high surface hardness and favorable scratch resistance, and can effectively ensure that the metal can not be scratched in the surface processing course. Besides, after the metal is processed, the UV photocuring paint layer can be quickly removed with alkaline water, and no influence can be caused on the metal itself.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a UV curing coating used for temporary protection of metal surface processing and its application. Background technique [0002] At present, metal materials are becoming more and more common and important materials in mobile phone manufacturing. Usually mobile phone metal processing process: metal raw material → forming → wire drawing → cleaning → spraying → packaging. The main purpose of brushing is to form a silky straight effect on the metal surface, while at the same time obtaining a low-gloss surface that enhances the aesthetics of the phone. However, the wire drawing is not performed on all metal surfaces, so temporary protection is required where the wire drawing is not needed. A layer of paint can be applied on the metal surface where wire drawing is not required, and the protective paint can be removed with dilute lye after the wire drawing is completed. [0003] The basic req...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D7/12
Inventor 鲁春风
Owner 深圳市美丽华科技股份有限公司
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