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Decorative sheet and decorative resin molded product using the same

A technology of decorative sheets and curable resins, applied in the direction of coatings, polycarbonate coatings, polyurea/polyurethane coatings, etc., can solve the problems of complicated conditions, poor economy, difficult curing treatment, etc., and achieve good scratch resistance, Ease of three-dimensional molding and excellent scratch resistance

Active Publication Date: 2018-05-18
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the curing process of molded products after three-dimensional processing is complicated and economical, and it is also difficult to perform uniform curing treatment

Method used

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  • Decorative sheet and decorative resin molded product using the same
  • Decorative sheet and decorative resin molded product using the same
  • Decorative sheet and decorative resin molded product using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～4

[0173] An ABS resin film (flexural modulus of elasticity; 2000 MPa, thickness: 400 μm) was used as a base material, and a pattern layer of a woodgrain pattern was formed by gravure printing on the surface of the film using an acrylic resin ink. Next, the surface of the pattern layer is coated with acrylic polyol and hexamethylene diisocyanate (hexamethylene diisocyanate is compounded in such a way that the NCO equivalent is the same as the OH equivalent of the acrylic polyol) by the gravure reverse coating method. The primer layer composed of the primer composition. The thickness of the primer layer was 3 μm.

[0174] Next, an electron beam curable resin composition having a composition shown in Table 1 was applied by gravure coating on the surface of the primer layer so that the cured thickness (μm) of the resin composition became the value shown in Table 1. The uncured resin layer was irradiated with electron beams at an accelerating voltage of 165 kV and an irradiation dos...

Embodiment 8～12 and comparative example 5～8

[0185] An ABS resin film (flexural modulus of elasticity; 2000 MPa, thickness: 400 μm) was used as a base material, and a pattern layer of a woodgrain pattern was formed by gravure printing on the surface of the film using an acrylic resin ink. Next, the surface of the pattern layer is coated with acrylic polyol and hexamethylene diisocyanate (hexamethylene diisocyanate is compounded in such a way that the NCO equivalent is the same as the OH equivalent of the acrylic polyol) by gravure reverse coating. A primer layer comprising the primer composition. The thickness of the primer layer was 3 μm.

[0186] Next, an electron beam curable resin composition having a composition shown in Table 2 was applied by gravure coating on the surface of the primer layer so that the cured thickness (μm) of the resin composition became the value shown in Table 2. The uncured resin layer was irradiated with an electron beam having an accelerating voltage of 165 kV and an irradiation dose of 50 ...

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Abstract

The present invention provides a decorative sheet having a surface protective layer that has both scratch resistance and three-dimensional formability. The decorative sheet has at least a surface protective layer on a base material, and the surface protective layer contains an ionizing radiation curable resin. A cured product of a composition containing at least polycarbonate (meth)acrylate (A) and polyfunctional (meth)acrylate (B), with a mass ratio of (A) / (B) ) is (98 / 2) to (70 / 30); and the base material has at least a surface protective layer, and the surface protective layer contains a cured product of an ionizing radiation curable resin composition, and the ionizing radiation curable resin composition has at least It contains acrylic silicone (meth)acrylate (C) and polyfunctional (meth)acrylate (B), and the mass ratio (C) / (B) is (50 / 50) to (95 / 5).

Description

[0001] This application is a divisional application of the Chinese invention application "decorative sheet and decorative resin molded product using it" with the filing date of January 28, 2011 and the application number of 201180065846.8. technical field [0002] The present invention relates to a decorative sheet having a surface protection layer containing a cured product of a specific ionizing radiation curable resin composition. Background technique [0003] Decorative resin molded articles decorated by laminating a decorative sheet on the surface of the molded article are used in various applications such as vehicle interior parts. As a molding method of such a decorative resin molded article, there is a method of pre-forming a decorative sheet into a three-dimensional shape using a vacuum molding die, inserting the shaped sheet into an injection molding die, injecting a fluid resin into the mold, and forming the resin and molding. The insertion molding method of sheet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/18C09D169/00C09D175/14C09D183/04C09D143/04
Inventor 斋藤信雄竹内绘美
Owner DAI NIPPON PRINTING CO LTD
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