Identification medium

Patent metadata

Field	Value
Publication number	US-9643444-B2
Application number	US-201314391257-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Apr 11, 2012
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

An identification medium can be affixed to cloth or leather products by sewing. A cholesteric liquid crystal layer on which an embossed surface for forming a hologram is formed, is sandwiched between a first supporting member and a second supporting member. A mounting region that can be affixed to clothing, etc., by sewing, is formed.

First claim

The invention claimed is:

1. An identification medium comprising
a cholesteric liquid crystal layer on which a hologram is formed,
a first supporting member and a second supporting member between which the cholesteric liquid crystal layer is sandwiched, and at least one thereof is made of transparent material which does not disturb circularly polarized light reflected from the cholesteric liquid crystal layer, and
a mounting region to be sewn onto an object, the first supporting member and the second supporting member extending to the mounting region and being adhered directly to each other by an adhesive layer in the mounting region, wherein
the first supporting member is a polyurethane film or a cloth, and the cholesteric liquid crystal layer is affixed to both of the first supporting member and the second supporting member by adhesive layers.

2. The identification medium according to claim 1 , further comprising
a resin coating layer on the cloth.

3. The identification medium according to claim 2 , further comprising
a third supporting member made of resin over the cloth.

4. The identification medium according to claim 3 , further comprising
an ink layer in which printing designation is overlappingly carried out on the cholesteric liquid crystal layer, wherein
the ink layer is visible over the cholesteric liquid crystal layer.

5. The identification medium according to claim 2 , further comprising
an ink layer in which printing designation is overlappingly carried out on the cholesteric liquid crystal layer, wherein
the ink layer is visible over the cholesteric liquid crystal layer.

6. The identification medium according to claim 1 , further comprising
a third supporting member made of resin over the cloth.

7. The identification medium according to claim 6 , further comprising
an ink layer in which printing designation is overlappingly carried out on the cholesteric liquid crystal layer, wherein
the ink layer is visible over the cholesteric liquid crystal layer.

8. The identification medium according to claim 1 , further comprising
an ink layer in which printing designation is overlappingly carried out on the cholesteric liquid crystal layer, wherein
the ink layer is visible over the cholesteric liquid crystal layer.

9. The identification medium according to claim 8 , further comprising
a film for printing in which the ink layer is formed.

10. The identification medium according to claim 9 , wherein
the mounting region is sewn onto the object, in a state in which the film for printing is arranged between the cholesteric liquid crystal layer and the object to be sewn.

11. The identification medium according to claim 1 , wherein
the first supporting member and the second supporting member have flexibility and can be bent anywhere.

12. The identification medium according to claim 1 , wherein
the mounting region is provided at one side of the identification medium.

13. The identification medium according to claim 1 , wherein
the first supporting member is configured to be contactable with skin.

14. An identification medium comprising
a cholesteric liquid crystal layer on which a hologram is formed,
a first supporting member and a second supporting member between which the cholesteric liquid crystal layer is sandwiched, and at least one thereof is made of transparent material which does not disturb circularly polarized light reflected from the cholesteric liquid crystal layer, and
a mounting region to be sewn onto an object, the first supporting member and the second supporting member extending to the mounting region and being adhered directly to each other by an adhesive layer in the mounting region, wherein
the first supporting member is a polyurethane film.

15. The identification medium according to claim 14 , wherein
the first supporting member is configured to be contactable with skin.

Assignees

• Nhk Spring Co Ltd

Inventors

• Hoshino Hidekazu
• Takeuchi Itsuo
• Ida Tohru
• Shibuya Seiya

Classifications

• B42D25/364

  Liquid crystals · CPC title

• B42D25/425

  by deformation, e.g. embossing · CPC title

• G03H2250/38

  Liquid crystal · CPC title

• G02F1/133305

  Flexible substrates, e.g. plastics, organic film · CPC title

• G09F3/02

  Forms or constructions (layered products B32B) · CPC title