Title:
MEDIUM FOR PREVENTING RECORDING INFORMATION FORGERY AND INFORMATION RECORDING METHOD
Document Type and Number:
Japanese Patent JP2013095127
Kind Code:
A
Abstract:
To provide a medium which differs in appearance from a conventional cholesteric medium, has a color shift effect and a circularly polarized light reflection characteristic which are unique to cholesteric materials, and allows a specific pattern to be formed thereon at low cost; and to provide a method for forming the specific pattern.
A medium for preventing forgery of recording information which includes at least a color shift information recording layer containing a first cholesteric layer, a black-ink absorbing layer, and a metallic reflective layer.
Inventors:
AONO KOTA
Application Number:
JP2011243211A
Publication Date:
May 20, 2013
Filing Date:
November 07, 2011
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B42D15/10; G02B5/30; G07D7/12; G07D7/20; G09F3/02; G09F19/14
Domestic Patent References:
| JP2011016291A | 2011-01-27 | |||
| JP2004338257A | 2004-12-02 | |||
| JP2007237535A | 2007-09-20 | |||
| JP2007093675A | 2007-04-12 | |||
| JP2011033791A | 2011-02-17 | |||
| JP2011100098A | 2011-05-19 |
Foreign References:
| US20110114733A1 | 2011-05-19 |
Attorney, Agent or Firm:
Kurata Masatoshi
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori