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UV varnish adapted for black plastic bottom material

A technology for plastics and substrates, used in polyurea/polyurethane coatings, devices for coating liquids on surfaces, and surface pretreatment. It can solve the problems of UV varnishes that cannot meet the requirements of hardness and cannot be fully cured, and achieve considerable economic benefits. and social benefits, the effect of superior performance

Inactive Publication Date: 2008-01-02
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The black substrate absorbs ultraviolet light very strongly, and the general UV varnish cannot be cured completely on the black substrate, which causes the hardness of the UV varnish to fail to meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mix and dissolve all raw materials evenly according to the following component formula:

[0031] HDDA 20g

[0032] DPHA 20g

[0033] UV7605B 45g

[0034] GF5200 10g

[0035] Irgacure184 5g

[0036] Irgacure819 5g

[0037] EFKA3777 1.0 g

[0038] EFKA3034 0.2 g

[0039] Butyl acetate 25g

[0040] 25 grams of isopropyl alcohol

[0041] Then it is sprayed on the plastic substrate, and cured by ultraviolet light irradiation with 80W.cm-1 illumination using a 1KW high-pressure mercury lamp. No marks, no one of the hundred grids peeled off separately.

Embodiment 2

[0043] Mix and dissolve all raw materials evenly according to the following component formula:

[0044] HDDA 30g

[0045] DPHA 20g

[0046] UV7605B 30g

[0047] GF5200 10g

[0048] Irgacure 184 5g

[0049] Irgacure819 5g

[0050] EFKA3777 1.0 g

[0051] EFKA3034 0.2 g

[0052] Butyl acetate 25g

[0053] 25 grams of isopropyl alcohol

[0054] Then it is sprayed on the plastic substrate, and cured by ultraviolet light irradiation with 80W.cm-1 illumination using a 1KW high-pressure mercury lamp. No marks, no one of the hundred grids peeled off separately.

Embodiment 3

[0056] Mix and dissolve all raw materials evenly according to the following component formula:

[0057] HDDA 35g

[0058] DPHA 15g

[0059] UV7605B 40g

[0060] GF5200 20g

[0061] Irgacure184 5g

[0062] Irgacure819 5g

[0063] EFKA3777 1.0 g

[0064] EFKA3034 0.2 g

[0065] Butyl acetate 25g

[0066] 25 grams of isopropyl alcohol

[0067] Then it is sprayed on the plastic substrate, and cured by ultraviolet light irradiation with 80W.cm-1 illumination using a 1KW high-pressure mercury lamp. No marks, no one of the hundred grids peeled off separately.

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PUM

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Abstract

The invention discloses a UV varnish of black plastic base, which comprises the following parts: 35-60% monomer, 35-65% photographic resin, 7-12% photo-initiation agent, 0.6-1.2% adjuvant and 50-60% solvent, wherein the monomer consists of TMPTA and DPHA; the photographic resin is aliphatic PUA, which contains UV7605B and GF5200; the photographic resin includes Irgacure184 and Irgacure819; the adjuvant contains EFKA3777 and EFKA3034; the solvent contains butyl acetate and petrohol.

Description

technical field [0001] The invention relates to a UV coating, in particular to a UV varnish for coating plastic substrates. Background technique [0002] UV coating is a coating that is hardened by chemical action caused by ultraviolet radiation. Its main components are composed of photosensitive resin, reactive diluent, photoinitiator and additives. The coating uses high-energy ultraviolet light as a curing energy source. The photoinitiator absorbs ultraviolet light energy to form free radicals, triggers photosensitive resin and reactive diluent molecules, and then undergoes chain polymerization reaction, so that the coating film is cured. [0003] UV coatings have the advantages of fast curing speed, energy saving, room temperature curing, superior performance, and environmental protection. The coating speed is fast, the film layer has high brightness, and the film surface is firm and heat-resistant after drying, which can make the surface of the substrate very bright and ...

Claims

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Application Information

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IPC IPC(8): C09D175/04B05D3/06
Inventor 陈其亮袁春来邓燕马迎娜
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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