Molded resin product and process for surface treatment thereof

Patent metadata

Field	Value
Publication number	US-9266385-B2
Application number	US-201113334576-A
Country	US
Kind code	B2
Filing date	Dec 22, 2011
Priority date	Mar 31, 2006
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

A molded resin product includes a substrate made of a transparent resin, opaque coating film disposed on rear surface of the substrate except for an area set aside for a patterned portion, a transparent resin material disposed in the area set aside for the patterned portion on the rear surface of the substrate, and an opaque reflection coating or a half-reflective coating laminated to the transparent resin material. Under this configuration, the patterned portion looks as if it pops up from the rear surface of the substrate. If a half-reflective coating is used, the pattern is visible through the half-reflective coating when the pattern is viewed from the rear surface of the lid of a molded resin product.

First claim

The invention claimed is:

1. A process for surface treatment of a molded resin product, comprising:
disposing an opaque coating film on a rear surface of a substrate made of a transparent resin, except for an area set aside for a patterned portion,
filling the area set aside for the patterned portion with a transparent resin material after the opaque coating film is disposed on the rear surface of the substrate, the transparent resin material being formed flatly at the same height as the opaque coating film, and
forming a half-reflective coating in a predetermined shape that covers at least a rear surface of the transparent resin material, so that a stereoscopic pattern or patterns is/are formed on an upper surface of the substrate and can be seen through the rear surface of the substrate.

2. The process for surface treatment of a molded resin product according to claim 1 , wherein the opaque coating film is laid over an entire rear surface of the substrate and removed from the area set aside for the patterned portion by irradiating the opaque coating film with a laser beam.

3. The process for surface treatment of a molded resin product according to claim 1 , wherein the opaque coating film is formed on the rear surface of the substrate by printing the opaque coating film in areas other than the area set aside for the patterned portion.

4. The process for surface treatment of a molded resin product according to claim 1 , wherein the transparent resin material is an ink, and the ink is embedded in the patterned portion as a transparent resin material.

5. The process for surface treatment of a molded resin product according to claim 1 , wherein an additive is incorporated into the transparent resin material.

6. The process for surface treatment of a molded resin product according to claim 1 , comprising:
disposing a half-reflecting member having at least a half-reflective surface on the rear surface of the substrate so as to form the half-reflective coating on the patterned portion.

7. The process for surface treatment of a molded resin product according to claim 6 , wherein a total reflection coating is formed in a part of the half-reflective coating with which the patterned portion is provided.

8. The process for surface treatment of a molded resin product according to claim 1 , wherein the half-reflective coating is formed by hot stamping.

9. The process for surface treatment of a molded resin product according to claim 1 , wherein the transparent resin material in the patterned portion is devoid of any material of the opaque coating film in a thickness direction between the rear surface of the substrate and the half-reflective coating.

10. A process for surface treatment of a molded resin product, comprising:
disposing an opaque coating film on a rear surface of a substrate made of a transparent resin, except for an area set aside for a patterned portion,
disposing a transparent resin material on the rear surface of the substrate in the area set aside for the patterned portion, the transparent resin material being formed flatly at the same height as the opaque coating film, and
forming a half-reflective coating in a predetermined shape that covers at least a rear surface of the transparent resin material, so that a stereoscopic pattern or patterns is/are formed on an upper surface of the substrate and can be seen through the rear surface of the substrate,
wherein the opaque coating film and transparent resin material do not overlap in a thickness direction.

11. The process for surface treatment of a molded resin product according to claim 10 , wherein the opaque coating film is laid over an entire rear surface of the substrate and removed from the area set aside for the patterned portion by irradiating the opaque coating film with a laser beam.

12. The process for surface treatment of a molded resin product according to claim 10 , wherein the opaque coating film is formed on the rear surface of the substrate by printing the opaque coating film in areas other than the area set aside for the patterned portion.

13. The process for surface treatment of a molded resin product according to claim 10 , wherein the transparent resin material is an ink, and the ink is embedded in the patterned portion as a transparent resin material.

14. The process for surface treatment of a molded resin product according to claim 10 , wherein an additive is incorporated into the transparent resin material.

15. The process for surface treatment of a molded resin product according to claim 10 , comprising:
disposing a half-reflecting member having at least a half-reflective surface on the rear surface of the substrate so as to form the half-reflective coating on the patterned portion.

16. The process for surface treatment of a molded resin product according to claim 15 , wherein a total reflection coating is formed in a part of the half-reflective coating with which the patterned portion is provided.

17. The process for surface treatment of a molded resin product according to claim 10 , wherein the half-reflective coating is formed by hot stamping.

18. The process for surface treatment of a molded resin product according to claim 10 , wherein the transparent resin material in the patterned portion is devoid of any material of the opaque coating film in a thickness direction between the rear surface of the substrate and the half-reflective coating.

Assignees

• Suzuki Kazuo
• Kamashima Hideyoshi
• Sunagawa Takayuki
• Shimada Shinji
• Yoshino Kogyosho Co Ltd

Inventors

• Suzuki Kazuo
• Kamashima Hideyoshi
• Sunagawa Takayuki
• Shimada Shinji

Classifications

• B32B27/00

  Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)} · CPC title

• Y10T428/24777

  Edge feature · CPC title

• B44F1/045 Primary

  having mirrors or metallic or reflective layers at the back side · CPC title

• Y10T428/24868

  Translucent outer layer · CPC title

• B32B2307/416

  Reflective · CPC title