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Title:
DECOLORING INK FOR INK JET PRINGING AND INK JET PRINTING METHOD USING IT
Document Type and Number:
WIPO Patent Application WO/2002/088265
Kind Code:
A1
Abstract:
A decoloring ink for ink jet printing containing an ang-khak pigment. An inclusion of an ang-khak pigment enables printed characters and/or images to be preserved as long as they are kept in the dark, but they are quickly decolored on exposure to visible light and/or ultraviolet light when they are no longer needed.

Inventors:
TSUYOSHI NAOKO (JP)
FUDOU RYOSUKE (JP)
YAMANAKA SHIGERU (JP)
FURUNAGA TOSHIKATSU (JP)
SATO KIMIKO (JP)
KONDO YOSHIYUKI (JP)
Application Number:
PCT/JP2002/004313
Publication Date:
November 07, 2002
Filing Date:
April 30, 2002
Export Citation:
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Assignee:
AJINOMOTO KK (JP)
SPACE ENVIRONMENTAL TECHNOLOGY (JP)
TSUYOSHI NAOKO (JP)
FUDOU RYOSUKE (JP)
YAMANAKA SHIGERU (JP)
FURUNAGA TOSHIKATSU (JP)
SATO KIMIKO (JP)
KONDO YOSHIYUKI (JP)
International Classes:
C09D11/00; (IPC1-7): C09D11/00; B41M5/00; B41J2/01
Foreign References:
JPH1148627A1999-02-23
JPH10110109A1998-04-28
JPH1180631A1999-03-26
JPH11172167A1999-06-29
Other References:
See also references of EP 1391486A4
Attorney, Agent or Firm:
Takaishi, Kitsuma (Tokyo, Tokyo, JP)
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