IP Library Granted Patent US 6,922,975
Granted Patent B1
US 6,922,975 · App. 09/980,816 · Granted Aug 2, 2005

Cosmetic material sheet and method for manufacture of the sheet and apparatus for use in the manufacture

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Quick Facts
Patent No.
US 6,922,975
App. No.
09/980,816
Granted
Aug 2, 2005
Kind
B1
Abstract

A cosmetic material sheet which comprises a sheet substrate 1 having, on an upper surface thereof, a large number of concave portions 5 arranged in a checkered pattern, a foundation layer 6 provided at a given position on the upper surface of the sheet substrate 1 in a state of covering arbitrary concave portions 5 out of a large number of concave portions 5, and a protective cover 3 attached releaseably on the upper surface of the sheet substrate 1 in a state of covering the foundation layer 6, wherein each concave portion 5 has an oblong shape in a plan view and has a bottom part thereof formed into a curved plane of a dish shape.

Claims (29)

1. A method for manufacturing a cosmetic material sheet comprising:

supplying a mount which has a plurality of concave portions formed on an upper surface of the mount, wherein the depth of the concave portions is within a range of 1 to 500 μm, wherein the lateral width of the concave portions is within a range of 50 to 2000 μm, wherein the longitudinal width of the concave portions is within a range of 50 to 2000 μm;

filling powdery cosmetic material on the upper surface of the mount covering the plurality of concave portions;

pressing the filled powdery cosmetic material;

clearing the upper surface of the mount of powdery cosmetic material;

adhering lamination material to the upper surface of the mount, and the pressed powdery cosmetic material forming a powdery cosmetic material adhering layer, wherein the lamination material is releasably adherent, wherein the lamination material comprises a window portion that is smaller than the powdery cosmetic material adhering layer; and

cutting the mount on a non-window portion of lamination material to obtain a cut piece as a cosmetic material sheet.

2. The method for manufacturing a cosmetic material sheet according to claim 1 , wherein the mount is formed of a resin sheet or a woodfree paper.

3. The method for manufacturing a cosmetic material sheet according to claim 2 , wherein the resin sheet includes polypropylene.

4. The method for manufacturing a cosmetic material sheet according to claim 3 , wherein the polypropylene resin sheet has a thickness of 6 to 400 μm.

5. The method for manufacturing a cosmetic material sheet according to claim 3 , wherein the polypropylene resin sheet has a thickness of 100 to 200 μm.

6. A device for manufacturing a cosmetic material sheet comprising:

a supply device which supplies a mount which has a plurality of concave portions formed on an upper surface thereof, wherein the depth of the concave portions is within a range of 1 to 500 μm, wherein the lateral width of the concave portions is within a range of 50 to 2000 μm, wherein the longitudinal width of the concave portions is within a range of 50 to 2000 μm;

a filling device which fills powdery cosmetic material on the upper surface of the mount wherein the powdery cosmetic material covers the concave portions to form a powdery cosmetic material adhering layer;

a pressing device which presses the powdery cosmetic material;

a means for clearing the upper surface of the mount of powdery cosmetic material;

a laminating device which adheres lamination material to the upper surface of the mount, wherein the lamination material is releasably adherent, wherein the lamination material comprises a window portion that is smaller than the powdery cosmetic material adhering layer; and

a cutting device which cuts the mount on a non-window portion of lamination material to obtain a cut piece as a cosmetic material sheet.

7. The device for manufacturing a cosmetic material sheet according to claim 6 , wherein the mount is formed of a resin sheet or a woodfree paper.

8. The device for manufacturing a cosmetic material sheet according to claim 7 , wherein the resin sheet includes polypropylene.

9. The device for manufacturing a cosmetic material sheet according to claim 8 , wherein the polypropylene resin sheet has a thickness of 6 to 400 μm.

10. The device for manufacturing a cosmetic material sheet according to claim 8 , wherein the polypropylene resin sheet has a thickness of 100 to 200 μm.

11. The device for manufacturing a cosmetic material sheet according to claim 6 , wherein the filling device comprises a printing plate.

12. The device for manufacturing a cosmetic material sheet according to claim 6 , wherein the filling device comprises a brush.

13. The device for manufacturing a cosmetic material sheet according to claim 6 , wherein the filling device comprises a powdery cosmetic material supply means.

14. The device for manufacturing a cosmetic material sheet according to claim 6 , wherein the filling device comprises a printing plate moving means.

15. The device for manufacturing a cosmetic material sheet according to claim 14 , wherein the printing plate includes a mesh.

16. The device for manufacturing a cosmetic material sheet according to claim 6 , wherein the filling device comprises a brush moving means.

17. The device for manufacturing a cosmetic material sheet according to claim 16 , wherein the brush is moved in the upward and downward directions, and is made to flow down the powdery cosmetic material from the printing plate.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 15, 2006
From: KANEBO COSMETICS, INC.
To: KAO CORPORATION
Reel/Frame 018635/0465 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2004
From: KANEBO, LTD.
To: KANEBO COSMETICS, INC.
Reel/Frame 015935/0978 →