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Decorative film for molding

A technology of decorative film and protrusions, which is applied in the field of formed decorative films, and can solve the problems of concave-convex pattern cracks on the surface of the sheet, cracks of the concave-convex pattern on the surface of the sheet, etc.

Inactive Publication Date: 2009-09-30
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when using these sheets for insert molding, there is a problem that the uneven pattern on the surface of the sheet may be cracked during vacuum molding or injection molding; or when using these sheets for thermowell molding, there is a problem that During injection molding, there is also a problem that cracks may appear in the concave-convex pattern on the surface of the sheet

Method used

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  • Decorative film for molding
  • Decorative film for molding

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preparation example Construction

[0066] Regarding the preparation method of the decorative film 10 of the present invention, for example, the coloring layer 13 and the adhesive layer 14 can be sequentially laminated on the base sheet 11 by gravure printing, roll coating and other known printing or coating methods, and then the back The liner 15 is dry laminated. When the colored layer 13 is multi-layered, drying may be performed after laminating the pattern layer, and then a masking layer and the like may be laminated. In the decorative film 10 of the present invention, the backing layer 15 is preferably dry-laminated, and then the protrusions 12 are formed on the surface of the base sheet 11 opposite to the backing layer 15 by the method described above.

[0067] Hereinafter, a method of producing an insert molded article using the decorative film 10 of the present invention will be described. Predetermined embossing is imparted by vacuum forming to the decorative film 10 of the present invention prepared a...

Embodiment 1～3 and comparative example 1

[0081] On the back of the substrate sheet made of polymethyl methacrylate as the main component and a colorless transparent acrylic resin sheet with a thickness of 75 μm, polybutyl methacrylate / vinyl chloride-vinyl acetate are sequentially laminated. A pattern layer (thickness 1 μm) made of ester copolymer (mass ratio: 2 / 1), a masking layer (thickness 2 μm) made of a mixture of polymethyl methacrylate, polybutyl methacrylate and inorganic pigments, and an adhesive layer (thickness 10 μm) made of a two-component curing polyurethane resin adhesive, and then a backing layer (thickness 400 μm) made of ABS resin was laminated by dry lamination, and then The following ionizing radiation-curable resin composition (solvent-free type) was printed in a planar pattern in which a plurality of circular protrusions were arranged by gravure printing, and irradiated with ultraviolet rays under the condition of 160 W / cm, while maintaining the plate shape of the gravure Next, carry out cross-li...

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Abstract

The invention relates to decorative film for molding, and no cracks are formed on the pattern having elevations and depressions on the surface of the decorative film for molding during vacuum forming or injection molding in the insert molding or during injection molding in the thermoject molding. A decorative film for molding having bossed portions on a base sheet, wherein the area of the entire bossed portions is 45% or smaller of the area of the entire face of the base sheet, and the area of a single bossed portion is 2 mm2 or smaller.

Description

technical field [0001] The present invention relates to a decorative film for molding, which is used in insert molding or thermo jacket molding. Background technique [0002] So far, decorative molded articles that decorate the surface of resin molded bodies have been used in various applications. For example, in Patent Document 1, there is disclosed a method of producing a molded article by so-called insert molding, the method comprising the steps of forming a molding decorative sheet laminated with a backing layer on the inner wall surface of a mold, and then, A molded article whose surface is covered with a sheet is obtained by injection molding a molding resin. [0003] Generally, in this insert molding, a pattern applied to a decorative film for molding is formed by using a thermoplastic resin such as acrylic resin as a binder resin, forming a flat pattern by gravure printing, etc., in order to improve the durability of the pattern properties (abrasion resistance, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44C5/04B32B27/00B32B7/12B29C45/14
CPCB29C2791/006B44C1/24B44C1/18B29C2791/001B32B27/06B29C51/14B29C45/14688B29C51/10B32B3/085B32B7/12B32B27/08B32B27/18B32B27/20B32B27/302B32B27/304B32B27/308B32B27/32B32B27/36B32B27/365B32B2255/10B32B2255/26B32B2255/28B32B2274/00B32B2307/412B32B2451/00Y10T428/24612B32B3/30B44C3/02
Inventor 平田新之助须贺和宏柏木淳子
Owner DAI NIPPON PRINTING CO LTD