High-contrast image forming process

Details High-contrast image forming process High-contrast image forming process

1991-10-01

1994-02-08

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

Process using lithographic infectious developer

430264, 430435, 430436, 430440, 430444, 430627, 430630, G03C 104

Patent

active

052847330

ABSTRACT:
A silver halide photographic material is disclosed. The photographic material comprises a support having coated thereon one or more hydrophilic colloidal layers, at least one of the hydrophilic colloidal layers being a negative working silver halide emulsion layer, wherein said silver halide emulsion layer or another hydrophilic colloidal layer contains a water-soluble polymer or copolymer having a quaternary ammonium salt in a repeating unit. The process for forming a high contrast negative image using the photographic material is also disclosed.

REFERENCES:
patent: 3370048 (1968-02-01), Reynolds
patent: 3518085 (1970-06-01), Milton et al.
patent: 4997743 (1991-03-01), Sasaoka et al.
Chemical Abstracts, Abstract No. 184960M, vol. 99, p. 593, Columbus, Ohio, Nov. 1983 of SU1,024,461, Jun., 1983.

Affiliated with

Also associated with

Rating

High-contrast image forming process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-contrast image forming process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-contrast image forming process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-696976