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Heat- and light-curable coating composition and coating film formation method, water pressure transfer method

一种水压转印、光热固化的技术，应用在聚脲/聚氨酯涂料、涂层、装饰艺术等方向，能够解决涂膜耐油酸性、耐乳酸性耐日晒性等耐化学性包装性差、装饰层与转印基材粘合性差、没有得到包装性和耐化学性等问题，达到缩短生成工序、实现美观性和耐用性、粘合性优异的效果

Inactive Publication Date: 2017-05-10
ORIGIN ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ultraviolet curable coatings have the following problems: the coating film is very hard, and when the coating film (coating layer) coated on the coating film is cured, it cannot shrink with curing, so the coating film will be separated from the coating layer. Peeling of cured coating film (recoated coating film)
However, as a cured coating film, there is the same problem as the coating film disclosed in Patent Document 1, that is, the coating film has poor chemical resistance such as oleic acid resistance, lactic acid resistance, and sunlight resistance, and packaging properties, which need to be improved.
[0007] Therefore, when the above-mentioned existing paint is used as a paint to form a protective film on the surface of automobiles and home appliance parts requiring quality and productivity, especially articles having a decorative layer formed by a hydraulic transfer method, practically The resistance to human sebum and sweat (chemical resistance) has not been fully considered, and in particular, coatings with good packaging and chemical resistance have not been obtained.
In addition, the decorative layer formed by the hydraulic transfer method has poor adhesion to the transfer substrate. Therefore, not only high adhesion between the decorative layer and the transfer substrate is required, but also aesthetics such as glossiness are required. , damage resistance, environmental resistance (water resistance, humidity resistance) and other characteristics

Method used

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  • Heat- and light-curable coating composition and coating film formation method, water pressure transfer method
  • Heat- and light-curable coating composition and coating film formation method, water pressure transfer method
  • Heat- and light-curable coating composition and coating film formation method, water pressure transfer method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～15、 comparative example 1～9

[0121] In the present examples and comparative examples, the following hydraulic transfer film, active agent composition, and transfer substrate are used to have a decorative layer obtained by hydraulically transferring the printed pattern layer of the hydraulic transfer film: Form a protective film on the surface of plastic molded products and evaluate its characteristics.

[0122] (1) Water pressure transfer film

[0123] For the water pressure transfer film, "G5100trustwalnut 4C" previously licensed by Taica Corporation was used. In addition, on the transfer surface of the polyvinyl alcohol (PVA) film, it is formed by using a solvent-based ink composed of a mixed system of a pigment and a synthetic resin, and a printed pattern layer (in a state where the solvent component is volatilized and removed) by gravure printing to implement a texture pattern. The hydraulic transfer film.

[0124] (2) Active agent composition and coating conditions

[0125] In the Examples and Com...

Embodiment 16～34

[0163] (Examples 16-34, Comparative Examples 10-14)

[0164] In this example and comparative example, the coating composition of each example and comparative example was spray-coated on the surface of the ABS resin molded article, and the coating layer was formed so that the film thickness after hardening may become 25 ± 5 micrometers. Then, after heating and pre-curing at an ambient temperature of 80°C for 5 minutes, the cumulative light intensity of irradiation is 1000mJ / cm 2 The ultraviolet rays were further cured by heating at an ambient temperature of 80° C. for 10 minutes to form a coating film.

[0165] The performance of the above-mentioned coating film was evaluated according to the above-mentioned method. Table 4 shows the evaluation results of the coating films.

[0166] [Table 4]

[0167]

[0168] According to the results in Table 4, it can be seen that within the specified blending range, the results of the examples containing acrylic polyol resins, photocur...

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Abstract

Provided are a heat- and light-curable coating composition suitable for automotive and consumer electronic products or for use as a top clear coat of a plastic molded article having a water pressure transfer-printed layer, and a coating film formation method and water pressure transfer method using this coating composition. A heat- and light-curable coating composition including (a) an acrylic polyol resin having a glass transition temperature (Tg) of 50-100DEG C, a mass-average molecular weight of 1000-20,000, and a hydroxyl value of 20-200 mg-KOH / g, (b) a polyfunctional light-curable compound, (c) a photopolymerization initiator, and (d) a polyisocyanate compound, the mass ratio of the acrylic polyol resin and the polyfunctional light-curable compound is 5 / 95-90 / 10, and the polyisocyanate compound is compounded so that the equivalent ratio (NCO / OH) of hydroxyl groups included in the acrylic polyol resin and isocyanate groups included in the polyisocyanate compound is 0.5-1.5.

Description

technical field [0001] The present invention relates to a coating composition curable by light and heat, and a coating film forming method using the coating composition. Specifically, it relates to a photothermally curable coating composition, a method for forming a coating film using the coating composition, and a hydraulic transfer method. The surface of a plastic molded article with a coating formed by vapor deposition or coating, or a plastic molded article with a hydraulic transfer printing layer obtained by hydraulically transferring a decorative layer is used to protect or impart beauty to the surface. Background technique [0002] For automobile parts and the like, a hydraulic transfer method is used to decorate the surface of a plastic molded article having a complicated three-dimensional surface. The hydraulic transfer printing method is to make the water pressure transfer printing film with the non-water-soluble printing pattern layer on the water-soluble film fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04B44C1/175C09D4/00C09D133/14
CPCC09D133/14B44C1/1758C08G18/6225C08G18/792C09D133/06C08G18/0842C09D175/16C08L2312/00C09D4/06C09D133/08C08F265/06B44C1/175C09D133/12C09D175/14
Inventor 神宫友行池田亘户田和寿富来秋子
Owner ORIGIN ELECTRIC CO LTD
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