Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1989-05-02

1990-10-09

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430569, 430570, 430603, G03C 102

Patent

active

049620150

ABSTRACT:
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer containing at least one emulsion in which chemically sensitized silver halide grains are composed of tabular silver halide grains having a diameter of a circle corresponding to the projected area of at least 0.4 .mu.m and an average aspect ratio of at least 2 are present in a ratio of at least 50% based on the total projected area of all silver halide grains in the emulsion layer, the tabular silver halide grains having a stratified structure containing at least one layer distinguished from each other with planes substantially parallel to the two main planes facing each other thereof, an average iodine content of the outermost layer therein being higher than an average iodine content of the whole silver halide grain by at least 1 mole %, and where weight ratio (gold/silver) of the amount of gold coated per unit area to the amount of silver coated per unit area of the photographic material being not more than 8.0.times.10.sup.-6. The silver halide photographic material is prevented from an increase in fog, a degradation of graininess and a decrease in sensitivity with the passage of time between the production and the use thereof.

REFERENCES:
patent: 4665012 (1987-05-01), Sugimoto et al.
patent: 4668614 (1987-05-01), Takada et al.
patent: 4835095 (1989-05-01), Ohashi et al.

Affiliated with

Also associated with

Rating

Silver halide photographic material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silver halide photographic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silver halide photographic material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-972942