Cover and method for manufacturing the same

Abstract

The present invention discloses a cover including a base, a patterned layer, a protective layer and a bottom layer. The base has a first surface, and a second surface on the opposite side of the first surface. The patterned layer is formed on the first surface of the base. The protective layer and the bottom layer are integrally formed on the second surface of the base and on the patterned layer respectively by injection molding. The present invention also provides a method for manufacturing a cover. The present cover can tend give a various and vivid appearances whilst also having good performance.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the present cover and a method for manufacturing the same can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the cover and a method for manufacturing the same. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.

FIG. 1 is a schematic, cross-sectional view of a cover according to a preferred embodiment;

FIG. 2 a flow chart of a method for manufacturing the cover of FIG. 1;

FIG. 3 is a schematic, cross-sectional view of a base of FIG. 1;

FIG. 4 is a schematic, cross-sectional view of the base and a patterned layer on the base of FIG. 1;

FIG. 5 is a schematic, cross-sectional view of the base having the patterned layer and a coating layer thereon of FIG. 1;

FIG. 6 is a schematic, cross-sectional view of the base having the patterned layer thereon after molding of FIG. 1;

FIG. 7 is a schematic, cross-sectional view of an apparatus in the period of forming a protective layer for manufacturing the cover of FIG. 1;

FIG. 8 is a schematic, cross-sectional view of an apparatus in the period of forming a bottom layer for manufacturing the cover of FIG. 1;

FIG. 9 is a schematic, cross-sectional view of an apparatus in the period of forming the bottom layer before forming the protective layer for manufacturing the cover of FIG. 1; and

FIG. 10 is a schematic, cross-sectional view of an apparatus in the period of forming the protective layer after forming the bottom layer for manufacturing the cover of FIG. 1.

Claims

1. A cover comprising: a base having a first surface, and a second surface on the opposite side of the first surface;a patterned layer attached on the first surface of the base;a protective layer integrally formed on the second surface of the base by injection molding; anda bottom layer integrally formed on the patterned layer by injection molding.

2. The cover as described in claim 1, wherein the base is one of a transparent film and sheet.

3. The cover as described in claim 2, wherein a material of the base is selected from a group consisting of polycarbonate, acrylonitrile-butadiene-styrene terpolymer, polyvinyl chloride, polyamide, and polymethyl methacrylate.

4. The cover as described in claim 1, wherein the patterned layer is selected from a group consisting of printing ink layer, metal plated layer, and a combination thereof.

5. The cover as described in claim 1, wherein the protective layer is one of a semi-transparent and transparent layer.

6. The cover as described in claim 5, wherein a material of the protective layer is selected from a group consisting of polycarbonate, acrylonitrile-butadiene-styrene terpolymer, and polymethyl methacrylate.

7. The cover as described in claim 1, wherein a material of the bottom layer is plastic.

8. The cover as described in claim 7, wherein the plastic is selected from a group consisting of polycarbonate, acrylonitrile-butadiene-styrene terpolymer, polyvinyl chloride, polyethylene, polystyrene, polyamide, and any combination thereof.

9. The cover as described in claim 1, further comprising a coating layer sandwiched between the patterned layer and the bottom layer.

10. The cover as described in claim 9, a material of the coating layer is selected from a group consisted of polyamide, polystyrene and polypropylene.

11. A method for manufacturing a cover, comprising the steps of: providing a base having a first surface, and a second surface on the opposite side of the first surface;attaching a patterned layer on the first surface of the base;forming a protective layer on the second surface of the base by injection molding; andforming a bottom layer on the patterned layer by injection molding.

12. The method as described in claim 11, wherein the step of forming the patterned layer on the first surface of the base is performed by one of electroplating, evaporation, sputtering, and printing process.

13. The method as described in claim 11, wherein after the step of forming the patterned layer on the first surface of the base, the base with the patterned layer are molded by hot press molding.

14. The method as described in claim 11, wherein after the step of forming the patterned layer on the first surface of the base, the base with the patterned layer are trimmed to a suitable shape.

15. The method as described in claim 11, wherein the step of forming the protective layer is performed by using a mold that comprises an upper molding portion and a lower molding portion; the lower molding portion has a molding block; the upper molding portion defines a molding cavity engaged with the molding block, and defines a guiding channel that communicates with the molding cavity above the molding cavity.

16. The method as described in claim 11, wherein the step of forming the bottom layer is performed by using a mold that comprises an upper molding portion and a lower molding portion; the lower molding portion has a molding block and defines a guiding channel in the molding block; the upper molding portion defines a molding cavity engaged with the molding block.

17. The method as described in claim 11, wherein the order of the step of forming the protective layer and the step of forming the bottom layer is exchanged.

18. The method as described in claim 11, wherein the step of forming the protective layer and the step of forming the bottom layer are carried out simultaneously.

19. The method as described in claim 11, further comprising a step of forming a coating layer on the patterned layer after forming the patterned layer.