Ink for ink jet recording, ink set for ink jet recording and...

Details Ink for ink jet recording, ink set for ink jet recording and... Ink for ink jet recording, ink set for ink jet recording and...

2007-04-10

2007-04-10

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C106S031270

Reexamination Certificate

active

10502388

ABSTRACT:
An ink for ink jet recording including a magenta dye selected from azo dyes dissolved or dispersed in an aqueous medium, characterized in that said magenta dye is a dye having an absorption maximum in a spectral range of from 500 to 580 nm in said aqueous medium and a more positive oxidation potential than 1.0V (vs SCE), particularly with the aforesaid ink for ink jet recording wherein the azo dye has a specific structure having a 5-membered heterocyclic ring and a 4-amino-6-membered heterocyclic ring connected to the azo group.

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Supplementary European Search Report dated Jul. 5, 2006.

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