New dyes for use in diverse applications
AssigneeAgfa-Gevaert
InventorsEric Kiekens, Paul Callant
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Abstract
The synthesis and the application of new dyes is described. In particular said new dyes can be incorporated in non-migratory state in hydrophilic colloid layers of photographic materials wherefrom they can be rapidly removed after being quickly decolorized in alkaline aqueous liquids used in the processing of said materials. In photographic applications dyes of the general formula (I) are provided with at least one ionizable group which permits solubilization in aqueous and/or alkaline medium. ##STR1##
Claims7
A photographic material comprising a support and at least one light-sensitive silver halide emulsion layer characterized in that it comprises in a hydrophilic colloid layer at least one dye corresponding to the general formula (I):
- ##STR10## wherein Q represents an aromatic or a heterocyclic aromatic ring and wherein R.sup.1 and R.sup.2 each independently represent a member selected from the group consisting of a hydrogen atom, an alkyl;
- an aryl;
- a heterocyclyl;
- a vinyl;
- C(.dbd.N--R.sup.3)--R.sup.4 ;
- CH.dbd.(N+)(--R.sup.5).sub.2 ;
- CR.sup.3 .dbd.(N+) (--R.sup.4).sub.2 ;
- C.tbd.N.sup.+ --O;
- CO--H and the acetals and thioacetals derived therefrom;
- CO--NH--R.sup.5 ;
- CO--NH--SO.sub.2 --R.sup.5 and the corresponding salts;
- CO--O--R.sup.5 ;
- CO--R.sup.5 and the acetals, thioacetals, animals and 1,3-oxathiolans derived therefrom;
- CO--S--R.sup.5 ;
- CS--H;
- CS--NH--R.sup.5 ;
- CS--O--R.sup.5 ;
- CS--R.sup.5 ;
- CS--S--R.sup.5 ;
- F, Cl, Br, I, CN;
- N.dbd.C.dbd.N--R.sup.5 ;
- N.dbd.C.dbd.O;
- N.dbd.C.dbd.S;
- N.dbd.N(O)--R.sup.5 ;
- N.dbd.N--R.sup.5 ;
- NH--CO--NH--R.sup.5 ;
- NH--CO--R.sup.5 ;
- NH--CS--NH--R.sup.5 ;
- NH--CS--R.sup.5 ;
- NH--R.sup.5 ;
- NH--SO.sub.2 --R.sup.5 ;
- NO.sub.2 ;
- NR.sup.3 --CO--R.sup.4 ;
- NR.sup.1 --CS--R.sup.2 ;
- NR.sup.5.sub.2 ;
- O--CN;
- O--CO--R.sup.5 ;
- O--R.sup.5 ;
- O--SO.sub.2 --R.sup.5 ;
- P(OR.sup.5).sub.2 ;
- PO--(OR.sup.5).sub.2 ;
- S--CN;
- S--CO--R.sup.5 ;
- S--CS--R.sup.5 ;
- S--R.sup.5 ;
- S--R.sup.5 ;
- SO--R.sup.5 ;
- SO.sub.2 NHR.sup.5 and the salts derived therefrom;
- SO.sub.2 --R.sup.5 ;
- SO.sub.3 H and the salts derived therefrom and wherein each of R.sup.3, R.sup.4 and R.sup.5 independently represents a member selected from the group consisting of an alkyl;
- an aryl;
- a heterocyclyl and a vinyl.
Dependencies are inferred from the claim text.