Silver halide material comprising low stain antenna dyes

Details Silver halide material comprising low stain antenna dyes Silver halide material comprising low stain antenna dyes

2005-06-21

2005-06-21

Letscher, Geraldine (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

C430S570000, C430S574000, C430S559000, C430S577000, C430S581000, C430S576000

Reexamination Certificate

active

06908730

ABSTRACT:
This invention relates to a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith:(a) a first dye (Dye 1) that is a cyanine dye capable of spectrally sensitizing a silver halide emulsion and that has at least one anionic substituent; and(b) a second dye (Dye 2) that is not a cyanine dye and that has at least one cationic substituent. Dye 2 has a log P, excluding any counterion, of less than 4.00 and greater than 1.00 or Dye 2 is represented by a dye of formula II as described herein.

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