METAL CHELATE AZO DYE FOR INK-JET RECORDING, INK-JET RECORDING FLUID CONTAINING THE SAME, AND METHOD OF INK-JET RECORDING

WIPO Patent Application WO/2001/062854

A1

A black dye for ink-jet recording which comprises a metal chelate azo dye whose free-acid form is represented by the general formula (1) and which combines satisfactory achromaticity with satisfactory light resistance; and a recording fluid containing the dye. (The general formula (1) shows a molecule having one or more hydrophilic groups. In the formula (1), M represents any metal; A, B, and C each represents an aromatic ring optionally having any substituent; D represents an aromatic ring optionally having any substituent other than an azo group; R¿1? and R¿2? each represents hydrogen or any substituent; m is an integer of 0 or 1; n is an integer of 0 to 3; p is an integer of 0 to 2; and q is an integer of 1 to 3; when two or more B's are present, they may be the same or different; M can have three or more coordination bonds with any part or ligand contained in the general formula (1); and a metal ion may be further coordinated, in the form of -O-M-O-, to A and B, or to two B's spaced by an azo group when there are two or more B's, or to B and C).

JPH0625547	POLYAZO DYE
JP4141837	Use of copper complexes of dysazo dyes for dyeing natural and synthetic materials
JP4687609	Dye-based polarizing film

SHIMIZU WATARU (JP)

PCT/JP2001/001242

August 30, 2001

February 21, 2001

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MITSUBISHI CHEM CORP (JP)
SHIMIZU WATARU (JP)

C09B45/24; C09D11/00; (IPC1-7): C09B45/18; C09B56/00; B41M5/00

JPS63199780A	1988-08-18
EP0233769A2	1987-08-26
EP0549342A2	1993-06-30

See also references of EP 1260556A4

Oguri, Shohei (28th floor 12-32, Akasaka 1-chome Minato-ku Tokyo, JP)

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