Process for sensitizing a fine grain silver halide photographic

Details Process for sensitizing a fine grain silver halide photographic Process for sensitizing a fine grain silver halide photographic

1977-05-09

1978-03-14

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

Having imbedded baffle or flow distributor

96109, 96 94R, G03C 128

Patent

active

040789373

ABSTRACT:
A process for preparing a sulfur-sensitized silver halide photographic emulsion whose average grain size does not exceed 0.5 .mu.m, which comprises forming the silver halide grains in the presence of ammionia and incorporating therein at least one hydroxytetrazaindene compound represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an aliphatic group or an aromatic group, and n represents 1 or 2; to thereby increase sensitivity.

REFERENCES:
patent: 2835581 (1958-05-01), Tinker et al.
patent: 3501313 (1970-03-01), Willems et al.
patent: 3655394 (1972-04-01), Illingsworth
patent: 3671258 (1972-06-01), Taber
patent: 3784381 (1974-01-01), Perignon
patent: 3915713 (1975-10-01), Shiba et al.

Affiliated with

Also associated with

Rating

Process for sensitizing a fine grain silver halide photographic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for sensitizing a fine grain silver halide photographic , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for sensitizing a fine grain silver halide photographic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2229292