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Title:
LAMINATE, ADHESIVE LABEL, TRANSFER FOIL, RECORDING MEDIUM, ARTICLE WITH LABEL, KIT AND DISCRIMINATION METHOD
Document Type and Number:
Japanese Patent JP2008137232
Kind Code:
A
Abstract:

To reduce the thickness of a birefringent layer without damaging visibility of a visualized latent image.

The identification laminate 10 comprises the birefringent layer 12 containing a first birefringent portion 12a which faces a reflecting layer 13b and a part of the front surface of the reflecting layer 13b and a second birefringent portion 12b which faces the other part of the front surface of the reflecting layer 13b and has a different direction of a phase delaying axis from the first birefringent portion 12a, and a cholesteric liquid crystal layer 19 interposed between the reflecting layer 13b and the birefringent layer 12. The first and the second birefringent portions 12a, 12b are respectively within the range of retardation of 3/32 to 5/32 when the wavelength is 550 nm.


Inventors:
KUBO AKIRA
OCHIAI HIDEKI
Application Number:
JP2006324759A
Publication Date:
June 19, 2008
Filing Date:
November 30, 2006
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B32B7/02; B42D15/10; B44C3/02; B44F1/12; G02B5/30; G02F1/13; G09F3/02
Domestic Patent References:
JP2001232978A2001-08-28
JP2001039100A2001-02-13
JP2005326882A2005-11-24
JP2003145912A2003-05-21
JP2001521179A2001-11-06
JP2001232978A2001-08-28
JP2001525080A2001-12-04
JP2001039100A2001-02-13
JP2005326882A2005-11-24
JP2003145912A2003-05-21
JP2001521179A2001-11-06
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto



 
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