US 4,118,232 A · Photographic material containing sulphonic acid group containing disazo dyestuffs

Abstract

The invention is directed essentially to photographic material containing, on a carrier, a layer with azo dyestuffs of the formula ##STR1## wherein A, B, X and Y are certain substituents, in a second main aspect azo dyestuffs of the formula ##STR2## wherein B' represents certain substituents and in a third main aspect azo deystuffs of the formula A.sub.1 --N.dbd.N--B.sub.1 --NH--CO--X.sub.1 --Y--Z.sub.1 --OC--HN--B.sub.1 --N.dbd.N--A.sub.1 wherein A.sub.1, B.sub.1, X.sub.1, Z.sub.1 and Y are certain substituents. The photographic materials provide advantages stemming from the use of the dyestuffs of the invention which are distinguished by particularly high fastness to light coupled with excellent bleachability, good resistance to diffusion and advantageous color strength.

Claims28

Dependent claims

Photographic material, characterized in that it contains, on a carrier, a layer with a symmetrical azo dyestuff of the formula ##STR511## wherein A.sub.1 denotes hydrogen, methyl, hydroxyethyl, phenyl, lower alkyl phenyl, trifluoromethyl phenyl lower alkoxy phenyl, fluoro-, chloro- or bromophenyl, sulphophenyl, carboxyphenyl, lower alkyl sulphophenyl or lower alkyl carbonylphenyl,

-- M.sub.4 denotes carbonyl, isophthaloyl, nitroisophthaloyl, benzoylamino-isophthaloyl, terephthaloyl, nitroterephthaloyl, chloroterephthaloyl, naphthalenedicarbonyl, --OC-phenylene-methylene-phenylene-C0--, --OC-phenylene-carbonyl-phenylene-CO-- , --OC-phenylene-sulphonyl-phenylene-CO--, --OC-phenylene-azo-phenylene-CO--, --OC-phenylene-ureylene-phenylene-CO--, --OC-phenylene-ethylenedioxy-phenylene-CO-- --CO-phenylene-pentylenedioxy-phenylene-CO--, --OC-phenylene-CO-HN-phenylene-CO- or --OC-phenylene-CO-HN-(CH.sub.2).sub.p -HN-OC-phenylene-CO--, p being 2, 3 or 4, and
D.sub.1 denotes fluorine, chlorine or bromine, methyl, ethyl, methoxy, ethoxy, methylmercapto, ethylmercapto, hydroxyethylmercapto, trifluoromethyl, acetylamino or benzoylamino.

Photographic material, characterized in that it contains, on a carrier, a layer with an azo dyestuff of the formula ##STR523## wherein A.sub.1 denotes hydrogen, methyl, hydroxyethyl, phenyl, lower alkyl phenyl, Difluoromethyl phenyl, lower alkoxy phenyl, fluoro-, chloro- or bromophenyl, sulphophenyl, carboxyphenyl, lower alkyl sulphonyl phenyl or lower alkyl carbonyl phenyl

D.sub.1 denotes sulphophenylene or sulphonaphthylene
E.sub.1 and E'.sub.1 denote phenylene, fluoro-, chloro- or bromophenylene, lower alkyl phenylene, lower alkoxy phenylene, nitro phenylene, acetylamino phenylene or nitrolophenylene, and
__________________________________________________________________________ Z denotes CONH, ##STR524## SO.sub.2 NH, CONH(CH.sub.2).sub.n HNOC, ##STR525## O(CH.sub.2).sub.n O, SO.sub.2 NH(CH.sub.2).sub.n HNO.sub.2 S, S(CH.sub.2).sub.n S, ##STR526## SO.sub.2 (CH.sub.2).sub.n O.sub.2 S, ##STR527## ##STR528## NHCO(CH.sub.2).sub.n O __________________________________________________________________________
r representing hydrogen or alkyl with 1 to 4 carbon atoms, m representing an integer from 1 to 5 and n representing an integer from 1 to 12.

1 more element

Dependencies are inferred from the claim text.

Photographic material containing sulphonic acid group containing disazo dyestuffs

Life of this patent

Photographic material containing sulphonic acid group containing disazo dyestuffs

Life of this patent

Abstract

Claims28