Silver halide photographic light-sensitive element containing dy

Details Silver halide photographic light-sensitive element containing dy Silver halide photographic light-sensitive element containing dy

1977-03-15

1978-03-14

Welsh, John D.

Gas separation: apparatus

Electric field separation apparatus

Electrode retaining or supporting means

252300, G03C 184

Patent

active

040789330

ABSTRACT:
A silver halide photographic light-sensitive element which comprises at least one silver halide emulsion layer and at least one hydrophilic colloid layer containing at least one dye represented by the following formula (I): ##STR1## wherein R represents a hydrogen atom, an aliphatic hydrocarbon group, an aromatic hydrocarbon group or an aralkyl group; X represents a hydrogen atom, a halogen atom, an aliphatic hydrocarbon group, an alkoxy group, an alkylthio group or a substituted amino group; L represents a methine group; M represents a cation; and p represents an integer of 1 to 3. The dyes are useful in antihalation and filter layers, and can be decolorized readily and completely.

REFERENCES:
patent: 3247127 (1966-04-01), Bailey
patent: 3653905 (1972-04-01), Depoorter et al.

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