In-mold decorated molded product and method of manufacturing the same

A manufacturing method and a technology of molded products, which are applied in the field of manufacturing simultaneous decoration molded products and molded decoration molded products, can solve problems such as easy to see traces of side gates, achieve the effect of simplifying the cutting process and maintaining design

Inactive Publication Date: 2006-08-23
NISSHA PRINTING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the traces of the side gate remain largely on the molded product, there is also a problem that the trace of the side gate is easily seen from the surface of the molded product.

Method used

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  • In-mold decorated molded product and method of manufacturing the same
  • In-mold decorated molded product and method of manufacturing the same
  • In-mold decorated molded product and method of manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] A release layer made of melamine resin is formed on a base sheet made of polyethylene terephthalate film (easy to bond) with a thickness of 38 μm, followed by two-component curing of polyurethane resin The stencil ink is used to form an evaporation anchor layer by gravure printing. After these layers were heat-treated at 120°C for 5 minutes, the first transfer layer formed by a 600±50 Å aluminum metal film was patterned by vacuum evaporation, and then formed by gravure printing. resin-formed adhesive layer to obtain a first decorative sheet. Similarly, the 2nd decorative sheet in which the 2nd transfer layer was formed was obtained.

[0090] The obtained first decorative sheet is placed in one injection molding mold so that the first transfer layer covers the end of the molded product near the side gate, and the second decorative sheet is placed in the other injection molding mold After that, inject the molding resin formed by acrylonitrile-butadiene-styrene copolymer...

Embodiment 2

[0094] On the acrylic film with a thickness of 125 μm, the first transfer layer is patterned with acrylic resin printing ink by gravure printing, and then an adhesive layer made of vinyl chloride vinyl acetate copolymer resin is formed by gravure printing to obtain the first transfer layer. 1 decorative sheet. Similarly, the 2nd decorative sheet in which the 2nd transfer layer was formed was obtained.

[0095] The obtained first decorative sheet is placed in one injection molding mold so that the first transfer layer covers the end of the molded product at the side gate, and the second decorative sheet is placed behind the other injection molding mold. After injecting molding resin made of polycarbonate, allowing it to cool and solidify, and integrating the first and second decorative sheets with the molding resin, the side gate resin forming part is cut along the side surface of the screen panel to obtain a molding At the same time, the screen panel of the mobile phone of th...

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Abstract

An in-mold decorated molded article wherein a coating layer is formed on a top surface of a transparent molded resin body which is flattened in a thickness direction of the body, thereby covering an edge part of the top surface adjacent to a side face on with a side gate mark formed, in order for the side gate mark not to be seen from the top surface of the molded resin body, and a decorative layer is formed on a bottom surface of a decorative layer of the transparent molded resin body. According to an in-mold decorated molded article, even when the transparent molding resin is employed with the result that an agreeable appearance is not achieved despite of a treatment for the side gate mark, the design property of the in-mold decorated molded article can be maintained, the gate mark of unacceptable appearance being not seen from the top surface.

Description

technical field [0001] The present invention relates to a molded and simultaneously decorated molded product and a method for manufacturing a molded and simultaneously decorated molded product. Background technique [0002] The molding simultaneous decoration method is to place a decorative sheet with a decorative layer on the base sheet between the first mold and the second mold of the injection molding mold, and inject the molding resin through the clamping mold of the first mold and the second mold. A method in which an injection molded product is formed in the formed molding space and a decorative layer is integrally bonded on the surface of the injection molded product. [0003] Moreover, recently, in response to the need for improvement in design or improvement in physical properties of the surface of the molded resin, as disclosed in JP-A-6-99457, moldings that provide decorative layers not only on one side of the molded resin body but also on both sides At the same ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B29C45/27B29L7/00B29L9/00B29C45/00
CPCY10T428/24802B29C45/14467B29C2045/14532B29C45/14827B29K2995/0026B29C45/0025B29C45/14B29C45/27
Inventor 滨野浩二丰冈尚登
Owner NISSHA PRINTING COMPANY
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