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US 6,551,390 B1Granted
Composition containing two different disazodyestuffs useful for ink jet recording
AssigneeAvecia Limited
InventorsAidan Joseph Lavery, Janette Watkinson, Paul Francis Mahon
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Abstract
Compositions comprising (a) a dye of the Formula (1) or a salt thereof; and (b) a dye of the Formula (2) or a salt thereof: wherein R1 to R10, a and b are as defined in the description. Also claimed are liquid compositions and inks containing the dyes, an ink jet printing process using the inks, an ink jet printer cartridge containing the ink and an ink jet printer containing the cartridge.
Claims15
A composition comprising:
- (a) a dye of the Formula (1) or a salt thereof;
- and
- (b) a dye of the Formula (2) or a salt thereof:
- wherein:
- R1, R2, R9 and R10 each independently is H or C1-4-alkyl;
- and
- R3, R4, R5 and R6 each independently is H, C1-4-alkyl, C1-4-hydroxyalkyl, C1-4-alkoxy or halo;
- R7 and R8 together with the nitrogen to which they are attached form a 5- or 6-membered ring;
- and
- a and b each independently is 1 or 2.
7 more elements
Dependencies are inferred from the claim text.