Formation of black-and-white silver-containing negative images b

Details Formation of black-and-white silver-containing negative images b Formation of black-and-white silver-containing negative images b

1979-11-14

1982-01-05

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430230, 430244, 430249, 430251, 430409, 430410, G03C 554

Patent

active

043094996

ABSTRACT:
A black-and-white negative image forming process is disclosed using a diffusion transfer type film unit. An exposed silver halide emulsion comprising internal latent image type silver halide grains which have substantially no fogging centers at their surface is processed with a composition comprising a silver halide solvent, a developing agent, a foggant, alkali and a fog promoting agent. The solvent for the silver halide characteristically possesses a solubilizing power for AgBr of from about 2.times.10.sup.-5 to 5.times.10.sup.-3 mol/l in a 0.002 molar aqueous solution.

REFERENCES:
patent: 2543181 (1951-02-01), Land
patent: 2861885 (1958-11-01), Land
patent: 3615438 (1971-10-01), Land
patent: 3649270 (1972-03-01), Blake
patent: 3733199 (1973-05-01), Crough et al.
patent: 3923513 (1975-12-01), Evans
patent: 4144064 (1979-03-01), Vermeulen

Affiliated with

Also associated with

Rating

Formation of black-and-white silver-containing negative images b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Formation of black-and-white silver-containing negative images b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Formation of black-and-white silver-containing negative images b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1844791