UV-curable colored paint composition

A technology of colored coatings and compositions, applied in the field of UV curable colored coating compositions, which can solve the problems of energy consumption, time-consuming, semi-drying, etc., and achieve the effects of high production efficiency, low cost, and low energy consumption

Active Publication Date: 2010-02-24
JIANGSU KUANGSHUN PHOTOSENSITIVITY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The coating method of the above-mentioned two-coat or three-coat type not only consumes energy, is time-consuming, requires a large production space, and has disadvantages such as high cost
Therefore, the industry hopes to develop a coating composition that can achieve both aesthetics and performance by one-time coating. For example, Taiwan Patent No. I290566 discloses a pearl paint ultraviolet coating composition for one-time spraying. A beautiful appearance can be obtained by one-time construction, but it is limited to the use of translucent pearlescent paint. If it is changed to non-transparent

Method used

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  • UV-curable colored paint composition
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  • UV-curable colored paint composition

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0077] Example 1

[0078] Table 1

[0079]

[0080] Add the diluent (butyl acetate / toluene / ethylene glycol monobutyl ether = 2 / 2 / 1 (volume ratio)) to the composition obtained above for about 10 seconds, and spray it on the plastic substrate with an air spray gun. Then, pre-bake for 5-10 minutes in an oven at 60℃, and then use a medium-pressure mercury lamp (800mJ / cm 2 ) Perform exposure. Then, the substrate with the coating film after the exposure is tested for physical properties.

[0081] The physical test results are as follows:

[0082] The coating film forms a 12-20μm coating film

[0083] Adhesion of coating film and substrate: 100 / 100

[0084] Coating film hardness: ≥H

[0085] Film gloss: 65

[0086] Heat resistance of coating film: pass (no crack or peeling in appearance)

[0087] Appearance: flat, with black semi-dull effect.

Example Embodiment

[0088] Example 2

[0089] Table 2

[0090]

[0091] Add the diluent (butyl acetate / toluene / ethylene glycol monobutyl ether = 2 / 2 / 1 (volume ratio)) to the composition obtained above for about 10 seconds, and spray it on the plastic substrate with an air spray gun. Then, pre-bake for 5-10 minutes in an oven at 60℃, and then use a medium-pressure mercury lamp (800mJ / cm 2 ) Perform exposure. Then, the substrate with the coating film after the exposure is tested for physical properties.

[0092] The results of physical testing are as follows:

[0093] The coating film forms a coating film of 10-15μm

[0094] Adhesion of coating film and substrate: 100 / 100

[0095] Coating film hardness: ≥H

[0096] Film gloss: 85

[0097] Heat resistance of coating film: pass (no crack or peeling in appearance)

[0098] Appearance: flat, with pearl semi-gloss effect.

Example Embodiment

[0099] Example 3

[0100] table 3

[0101]

[0102] Add the diluent (butyl acetate / toluene / ethylene glycol monobutyl ether = 2 / 2 / 1 (volume ratio)) to the composition obtained above for about 10 seconds, and spray it on the plastic substrate with an air spray gun. Then, pre-bake for 5-10 minutes in an oven at 60℃, and then use a medium-pressure mercury lamp (800mJ / cm 2 ) Perform exposure. Then, the substrate with the coating film after the exposure is tested for physical properties.

[0103] The results of physical testing are as follows:

[0104] The coating film forms a 20-25μm coating film

[0105] Adhesion of coating film and substrate: 100 / 100

[0106] Coating film hardness: ≥HB

[0107] Film gloss: 90

[0108] Heat resistance of coating film: pass (no crack or peeling in appearance)

[0109] Appearance: flat, with blue full light effect.

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Abstract

The invention relates to a UV-curable colored paint composition which comprises (a) a low polymer containing at least one unsaturated double bond; (b) a diluted monomer; (c) a light initiator; (d) thermoplastic acrylic resin; and (e) a pigment. The paint composition of the invention can be applied in a one-time construction mode to obtain high-performance coatings with rich colors. Compared with the traditional two-layer or three-layer application mode, the invention can provide high production efficiency, low energy consumption, low manufacturing cost and low possibility of generation of wastes.

Description

technical field [0001] The invention relates to a UV (ultraviolet) curable colored paint composition, in particular to a UV curable colored paint composition for one-time spraying. Background technique [0002] At present, various electronic or electrical products, such as digital cameras, notebook computers, mobile phones, auto parts, etc., and cosmetics, have been widely used in people's lives. The casings of such products are mostly made of plastic, which has the advantages of easy molding, low cost, light weight, and non-corrosion, but has disadvantages such as unsightly, easy to age, poor mechanical properties, poor heat resistance, and high water absorption. After the casing is processed and formed, it is often necessary to coat the surface with protective and / or decorative coatings. [0003] In the past, most of the coating methods for plastic substrates required two-coating and two-baking or three-coating and three-baking procedures, that is, the primer was sprayed ...

Claims

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Application Information

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IPC IPC(8): C09D4/06
Inventor 黄鸿文曾俊杰张爱春王维理
Owner JIANGSU KUANGSHUN PHOTOSENSITIVITY NEW MATERIAL
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