Unlock instant, AI-driven research and patent intelligence for your innovation.

Molded products and in-mold transfer foils

A technology for molded products and transfer layers, applied in the direction of ink transfer from original manuscripts, synthetic resin layered products, layered products, etc., can solve the problem of short circuit or disconnection of conductive wiring, pattern deformation and insufficiency of the decorative layer, etc. problem, to achieve the effect of preventing deformation or damage

Inactive Publication Date: 2016-11-23
SONY CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although such a hard coating is suitable for preventing scratches, it is not effective in preventing the deformation or damage of the printing layer caused by the high-pressure and high-temperature resin flowing during secondary molding (the pressure can reach above 100MPa, and the temperature can reach above 200°C). insufficient
Flowing resin at high pressure and high temperature will damage the hard coat layer, deform the pattern of the decorative layer below it, and cause short circuit or disconnection of conductive wiring

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Molded products and in-mold transfer foils
  • Molded products and in-mold transfer foils
  • Molded products and in-mold transfer foils

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach 〉

[0047] (Structure of molded product)

[0048] figure 1 As a structure molded product (two-color molded product) constituting a part of an externally visible part of an electronic device not shown in the first embodiment of the present invention, a front cover molded product is shown as a part of an electronic device case. floor plan.

[0049] Examples of electronic devices include portable electronic devices such as mobile phones, portable music players, and PDAs (Personal Digital Assistants). This front cover 100 is attached to the main body of the housing (not shown), thereby constituting the electronic device.

[0050] figure 2 is a plan view showing the rear side 2 (inner side of the housing) of this front cover 100 . image 3 yes figure 2 A-A sectional view of .

[0051] As shown in these figures, the front cover 100 includes: a primary molding layer 10 forming a layer on the surface side 1 of this front cover 100, an overmolding layer 20 forming a layer on the rea...

no. 3 approach 〉

[0094] Next, a case where two-color molding is performed using the in-mold transfer foil according to the third embodiment will be described. In this example, the primary molding layer 10 is made of opaque resin, and the secondary molding layer 20 is made of transparent or translucent resin. As the material of the opaque resin primary molding layer 10, the material of the secondary molding layer 20 described in the first embodiment can be used. For example, as the material of the primary molding layer 10, ABS resin with high mechanical strength, PC resin, synthetic resin of ABS resin and PC resin, PMMA (polymethyl methacrylate (acrylic)), PS (polymethylmethacrylate) can be used. styrene) and other resins. Furthermore, as the material of the transparent or translucent resin overmolding layer 20, the material of the overmolding layer 20 described in the first embodiment can be used. For example, as the material of the secondary molded layer 20 , general-purpose resins such as ...

no. 5 approach 〉

[0110] Next, a case where secondary molding is performed using the in-mold transfer foil according to the fifth embodiment will be described. In this example, in the in-mold transfer foil according to the third embodiment, in order to further improve the bonding strength between the overmolded layer and the primary molded layer, the overmolded layer side of the decorative layer 33 (in the In-mold transfer foil (base film side) is provided with an adhesive layer that adheres to the overmolding resin.

[0111] In this example, the primary molding layer 10 is made of opaque resin, and the secondary molding layer 20 is made of transparent or translucent resin. Both the material of the opaque resin primary molding layer 10 and the material of the transparent or translucent resin secondary molding layer 20 can be those described in the third embodiment.

[0112] Furthermore, any layer and base film constituting the in-mold transfer foil 70' according to the fifth embodiment can be ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention provides a molded article and an in-mold transfer foil capable of preventing deformation and damage of a transfer layer. The above-mentioned molded article has: a primary molding resin 10'; a transfer layer 30 transferred on the surface of the primary molding layer 10, and the transfer layer 30 is sequentially laminated with a decorative layer 33 from the side of the primary molding resin 10', made of polyester or Any one of polyurethane, polyimide, or cellulose, or a mixture of two or more of them, is the main component of the anti-foil printing layer 31; the secondary molding formed on the side of the anti-foil printing layer 31 of the transfer layer 30 Resin 20'.

Description

technical field [0001] The present invention relates to, for example, a molded article integrally molded using different resin materials and an in-mold transfer foil for molding. Background technique [0002] The two-color molding method described below is known in the prior art. First, the primary molding cavity and the core are closed with an in-mold transfer foil on which the pattern layer is formed, and the pattern layer is transferred to the surface by injecting molten primary molding resin. The resin part is molded. Then, the secondary molding resin part covering the surface of the primary molding resin part is formed by closing the cavity in which the primary molding resin part is mounted and the core for secondary molding and ejecting the secondary molding resin (for example, refer to Patent Document 1 ). The molded product produced by the two-color molding method has the advantage of protecting the pattern layer transferred from the in-mold transfer foil to the p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/025B32B27/06B32B7/023
CPCB29L2031/3481B29L2031/3437B29C45/14811B29C45/1671B29C45/1679B29C45/14639B32B7/06B32B23/04B32B23/08B32B27/281B32B27/30B32B27/36B32B27/40B32B3/02B32B3/18B32B2307/412B32B2307/414B32B2307/748B32B2307/75Y10T428/24802B29C45/14688B32B7/023B29C45/14B29C45/16B32B27/00H05K1/0298
Inventor 关敦司
Owner SONY CORP