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Title:
CARD
Document Type and Number:
Japanese Patent JP2009220383
Kind Code:
A
Abstract:

To solve such a problem that in the conventional color developing material of fluorescent dye, since a fluorescent dye is mixed into the material itself, for a material maker, it takes much time for cleaning an apparatus when returning to manufacturing of a material using no fluorescent dye.

The card is prepared by successively stacking a front cover sheet made of transparent resin material, a front core sheet made of transparent resin material, a rear core sheet made of opaque resin material and a rear cover sheet made of transparent resin material, wherein, on the expression surface of the front cover sheet, a printed surface which shields light is formed with a pattern partially having an opening part and a temperature-sensitive ink layer which is made transparent at a prescribed temperature is formed so as to cover the opening part of the print layer which shields the light and a collective fluorescent dye ink layer is formed so as to include the opening part between the front cover sheet and the front core sheet.


Inventors:
MIZUMURA AKIHIRO
Application Number:
JP2008067085A
Publication Date:
October 01, 2009
Filing Date:
March 17, 2008
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
B42D15/10; B32B27/00; B41M3/06; B42D15/02; G06K19/06
Domestic Patent References:
JP2005014490A2005-01-20
JP2007076022A2007-03-29
JPH0349655U1991-05-15
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Foreign References:
WO2007072795A12007-06-28
DE102007024298B32008-10-16
Attorney, Agent or Firm:
Satoshi Kanayama
Keiko Fukamachi
Hideo Ito
Hiromi Fujimasu
Naoki Goto



 
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