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Title:
REWRITABLE MULTICOLOR PRINTING CARD
Document Type and Number:
Japanese Patent JPH0684028
Kind Code:
A
Abstract:

PURPOSE: To provide an economical and inexpensive rewritable multicolor printing card without need of energy for maintaining display and capable of massproduction by an application method.

CONSTITUTION: The printing card consists of plural translucent colored layers 2, 4 having respectively different hue and plural heat sensitive layers 3, 5 whose transparency is reversibly changed by temperature by alternately laminating respective layers 2 to 5 on a base 1 to form a card so that the erasing temperature bands and coloring temperature bands respective heat sensitive layers 3, 5 are not overlapped and the erasing temperature of the lower layer close to the base 1 is set to a lower value.


Inventors:
OZAWA KAZUHIRO
Application Number:
JP23559392A
Publication Date:
March 25, 1994
Filing Date:
September 03, 1992
Export Citation:
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Assignee:
TOKIN CORP
International Classes:
G06K19/06; (IPC1-7): G06K19/06
Attorney, Agent or Firm:
Yosuke Goto (2 outside)



 
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