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Matte ultraviolet-curing coating composition used for PET (polyethylene terephthalate) metal-imitating wire drawing film

A technology for curing coatings and ultraviolet light, applied in epoxy resin coatings, polyurea/polyurethane coatings, coatings, etc. The effect of uniform film, high matteness and excellent visual effect

Inactive Publication Date: 2014-02-05
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, domestic PET imitation metal brushed film coatings have not yet been patented, and the coatings used cannot fully meet the needs, such as poor scratch resistance, short water boiling time, especially the acid and alkali resistance test.
The industry mainly relies on imported coatings, mainly from South Korea, Japan and Taiwan, which are expensive and costly, which reduces the market competitiveness of PET anti-metal wire drawing film and greatly hinders its domestic development

Method used

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  • Matte ultraviolet-curing coating composition used for PET (polyethylene terephthalate) metal-imitating wire drawing film
  • Matte ultraviolet-curing coating composition used for PET (polyethylene terephthalate) metal-imitating wire drawing film
  • Matte ultraviolet-curing coating composition used for PET (polyethylene terephthalate) metal-imitating wire drawing film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The UV-curable matte coating composition for PET imitation metal brushed film of this embodiment includes each component by weight shown in Table 1.

[0028] The coating composition is roll-coated on the PET film, and the coating dry weight is 3-5g / m 2 Between, 65 ℃ infrared leveling 1 ~ 2 minutes, through 500mj / cm 2 After the energy is cured, the adhesion fastness between the coating and the PET film is good (100 / 100), the temperature resistance exceeds 200°C, the load of 0# steel wool is 1000g, and it is wiped back and forth 200 times without trace, no cracks under cold and heat shock, and it is resistant to boiling water for 2 There is no change in hours, and there is no trace on the surface of 10% hydrochloric acid erosion for 72 hours, and the comprehensive performance is excellent.

Embodiment 2

[0030] The UV-curable matte coating composition for PET imitation metal brushed film of this embodiment includes each component by weight shown in Table 1.

[0031] Apply the coating roller to the PET film, the coating dry weight is 3~5g / m 2 Between, 65 ℃ infrared leveling 1 ~ 2 minutes, through 500mj / cm 2 After the energy is cured, the adhesion fastness between the coating and the PET film is good (100 / 100), the temperature resistance exceeds 200°C, the load of 0# steel wool is 1000g, and it is wiped back and forth 200 times without trace, no cracks under cold and heat shock, and it is resistant to boiling water for 2 There is no change in hours, and it is resistant to 10% sodium hydroxide solution for 48 hours to maintain good adhesion and excellent comprehensive performance.

Embodiment 3

[0033] The UV-curable matte coating composition for PET imitation metal brushed film of this embodiment includes each component by weight shown in Table 1.

[0034] Apply the coating roller to the PET film, the coating dry weight is 3~5g / m 2 Between, 65 ℃ infrared leveling 1 ~ 2 minutes, through 500mj / cm 2 After the energy is cured, the adhesion fastness between the coating and the PET film is good (100 / 100), the temperature resistance exceeds 200°C, the load of 0# steel wool is 1000g and wiped back and forth 100 times without trace, no cracks under cold and heat shock, and it is resistant to boiling water for 2 No change in hours, 10% hydrochloric acid resistance, 10% sodium hydroxide solution corrosion resistance for 48 hours to maintain good adhesion, excellent comprehensive performance.

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Abstract

The invention relates to a matte ultraviolet-curing coating composition used for a PET (polyethylene terephthalate) metal-imitating wire-drawing film, and the matte ultraviolet-curing coating composition comprises the following components: by weight, 15 ~ 30% of polyurethane acrylate, 5 ~ 15% of epoxy acrylate, 5 ~ 20% of acrylate monomer, 1 ~ 10% of extinction powder, 2 ~ 6% of a light initiator, 0.1 ~ 1.5% of a levelling agent, 0.01 ~ 0.05% of a polymerization inhibitor and 30 ~ 60% of a solvent. Compared with the prior art, the matte ultraviolet-curing coating composition has high quality, good stability, good coating-film visual effects, and good PET film adhesion fastness and has good high scratch resistance, high impact resistance, high-temperature resistance, water cooking and chemical resistance and other excellent comprehensive performances.

Description

technical field [0001] The invention belongs to the field of ultraviolet light curing coatings, in particular to a matte ultraviolet light curing coating composition for PET imitation metal wire drawing film. Background technique [0002] PET (polyethylene terephthalate) imitation metal wire drawing film is composed of mechanical wire drawing PET film and metal coating, mainly used in various 3C product panels, home appliance panels, furniture surface decoration and other fields, giving good visual effects , to increase the aesthetics. Because the surface gloss of PET itself is high, the visual effect together with the metal coating is light and frivolous, without the heavy texture of metal, and the scratch resistance of the PET surface is poor, easy to be damaged, and affects the appearance. Therefore, UV curing is used. It is an ideal method to enhance the scratch resistance of PET surface by coating. The UV-cured coating can not only improve the scratch resistance of th...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D163/10C09D7/12
Inventor 虞明东缪慧
Owner SHANGHAI WEIKAI CHEM
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