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Title:
DYE COMPOSITION, INK COMPOSITION, AND METHOD OF INK−JET RECORDING
Document Type and Number:
WIPO Patent Application WO/2004/026964
Kind Code:
A1
Abstract:
A yellow dye composition, liquid dye composition, and ink composition which each contains compounds represented by the formulae (1) and (2): (1) (2) wherein M and L each represents hydrogen, an alkali metal, alkaline earth metal, cation of an organic amine, or ammonium ion. They have satisfactory long−term storage stability in an aqueous solution state having a dye concentration as high as 6 to 10%. They have a hue and brightness which are suitable for ink−jet recording, and are characterized by giving prints high in fastness regarding light resistance, etc.

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Inventors:
KITAYAMA HIROKAZU (JP)
SHIRASAKI YASUO (JP)
Application Number:
PCT/JP2002/009671
Publication Date:
April 01, 2004
Filing Date:
September 20, 2002
Export Citation:
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Assignee:
NIPPON KAYAKU KK (JP)
KITAYAMA HIROKAZU (JP)
SHIRASAKI YASUO (JP)
International Classes:
B41M5/00; C09B43/16; C09B67/22; C09B67/34; B41J2/01; C09B67/44; C09D11/00; C09D11/328; (IPC1-7): C09B43/16; B41M5/00; B41J2/01; C09D11/00
Foreign References:
JP2002285022A2002-10-03
JPH05155005A1993-06-22
GB1415558A1975-11-26
US4661158A1987-04-28
Attorney, Agent or Firm:
Saeki, Norio (Aminosan Kaikan Building 15-8, Nihonbashi 3-chom, Chuo-ku Tokyo, JP)
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