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Patent Searching and Data


Title:
IC CARD
Document Type and Number:
Japanese Patent JP2003108957
Kind Code:
A
Abstract:

To provide an IC card suitably used for formation of an image using a thermal transfer printer, provided with excellent quality and preservability of the image, and prevented from forgery and alteration.

This IC card 20 is provided with a card type lamination body 5, which is constructed of a front face base material 1 and a back face base material 2 each principally consisting of a polyester resin and an IC module 4, and a transparent resin sheet 6 principally consisting of a polyester resin with a softening point of 50-140°C and having a reverse visible image formed on at least its one face, and the transparent resin sheet 6 is layered on the surface of the card type lamination body 5 while having the reverse visible image formation face inside. The transparent resin sheet 6 is bonded to the card type lamination body 5 by thermo-compression bonding. In a part or the whole of one face in the transparent resin sheet 6, a dye receiving layer 9 is formed. The polyester resin forming the transparent resin sheet 6 contains 5 mole% or more of a cyclohexane dimethanol residue. In the transparent resin sheet 6, the transmittance to visible light with a wavelength of 400-750 nm is 75% or more.


Inventors:
SHINOHARA HIDEAKI
NAKAI TATSU
UCHIDA KYOKO
Application Number:
JP2001298812A
Publication Date:
April 11, 2003
Filing Date:
September 28, 2001
Export Citation:
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Assignee:
OJI PAPER CO
International Classes:
B42D25/455; B42D25/20; B42D25/305; B42D25/46; G06K19/077; (IPC1-7): G06K19/077; B42D15/10
Attorney, Agent or Firm:
Masatake Shiga (6 people outside)