Developer for silver halide photographic light-sensitive materia

Details Developer for silver halide photographic light-sensitive materia Developer for silver halide photographic light-sensitive materia

1993-02-22

1994-04-05

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430446, 430490, G03C 5305

Patent

active

053004108

ABSTRACT:
Disclosed is a developer for silver halide photographic light-sensitive material which contains at least one of the compounds represented by the following formulas [I], [II] and [III]:
Formula [I]: ##STR1## wherein M represents a hydrogen atom, an alkali metal or NH.sub.4 and A and B each represents a mercapto group, a hydroxyl group, a hydroxyalkyl group, or ##STR2## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or --X--Y group in which X represents a divalent group and Y represents a carboxyl group or a hydroxyl group,
Formula [II]: ##STR3## wherein M represents a hydrogen atom, an alkali metal or NH.sub.4, A' represents an organic divalent group, and B' represents --SO.sub.3 M', --COOM', --SO.sub.2 NHR.sub.3, --CONHR.sub.3, or --OH wherein M' represents a hydrogen atom, an alkali metal atom or NH.sub.4, and R.sub.3 represents a hydrogen atom or an alkyl group of 1-3 carbon atoms, and
Formula [III]: ##STR4## wherein M and B' are the same as defined in the above formula [II]:

REFERENCES:
patent: 4443531 (1984-04-01), Yamada et al.

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