Light-sensitive silver halide photographic material

Details Light-sensitive silver halide photographic material Light-sensitive silver halide photographic material

1982-11-18

1985-05-14

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430550, G03C 102

Patent

active

045172846

ABSTRACT:
A light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that the said silver halide comprises silver halide grains containing at least 80 molar % of silver chloride and at least one of merocyanine dyes having the formula ##STR1## wherein R.sub.1 and R.sub.2 individually represent an alkyl group, an alkenyl group or an aryl group provided that at least one of R.sub.1 and R.sub.2 is an alkyl or aryl group having a sulfo group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 individually represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a phenyl group and any one pair of R.sub.3 and R.sub.4, R.sub.5 and R.sub.6, R.sub.1 and R.sub.6 or R.sub.4 and R.sub.5 may joint each other to form a ring; X is an oxygen atom, a sulfur atom or a selenium atom; and Y is an oxygen atom, a sulfur atom or a selenium atom provided that at least one of X and Y represents a selenium atom.

REFERENCES:
patent: 3567458 (1971-03-01), Milton
patent: 3713828 (1973-01-01), Hayashi et al.
patent: 3804634 (1974-04-01), Shiba et al.
patent: 3915713 (1975-10-01), Shiba et al.
patent: 4160669 (1979-07-01), Habu et al.
patent: 4173483 (1979-11-01), Habu et al.

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