Anionic dye

A dye which, in the free acid form, has the formula I wherein W is COOH X is selected from H, COOH, SO3H, halo, hydroxy, nitro, cyano, C1-6-alkyl, C1-6-alkoxy and C1-6-acylamino; Y is H, COOH or SO3H; Z is H, COOH or SO3H; R & R1 are each independently H or C1-6-alkyl substituted by 0, 1 or 2 -C...

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Bibliographic Details
Main Authors KENYON; RONALD W, HINDAGOLLA; SURAJ L, GREENWOOD; DAVID, HUGHES; NIGEL
Format Patent
LanguageEnglish
Published 20.04.1993
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:A dye which, in the free acid form, has the formula I wherein W is COOH X is selected from H, COOH, SO3H, halo, hydroxy, nitro, cyano, C1-6-alkyl, C1-6-alkoxy and C1-6-acylamino; Y is H, COOH or SO3H; Z is H, COOH or SO3H; R & R1 are each independently H or C1-6-alkyl substituted by 0, 1 or 2 -COOR2 groups; and R2 is H or C1-6-alkyl; provided that there are at least two COOH groups and that the number of COOH groups is equal to or greater than the number of SO3H groups. The dye is adapted for the preparation of inks for use in ink jet printing in which it displays high water-fastness on paper.
Bibliography:Application Number: US19910719342