Silver halide photographic material and method for forming an im

Details Silver halide photographic material and method for forming an im Silver halide photographic material and method for forming an im

1988-09-01

1990-09-11

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430265, 430267, 430583, 430584, 430598, 430600, 430949, G03C 116, G03C 133

Patent

active

049562576

ABSTRACT:
A negative silver halide photographic material composed of a support having thereon at least one chemically sensitized silver halide emulsion layer at least one hydraophilic colloidal layer containing a hydrazine derivative and a compound having substantially all absorption maxima outside the visible light region represented by formula (I): ##STR1## wherein Z.sup.11 and Z.sup.12 each represents a non-metallic atomic group necessary for completing a substituted or unsubstituted heterocyclic ring selected from benzoxazole, benzothiazole, benzoselenazole, naphthoxazole, naphthothiazole, naphthoselenazole, thiazole, thiazoline, oxazole, selsnazole, selsnazoline, pyridine, benzimidazole, and quinoline; R.sup.11 and R.sup.12 each represents a substituted or unsubstituted alkyl group, provided that at least one of them is substituted with an acid radical; X represents a counter ion necessary for charge balance; and n is 0 or 1.
The photographic material exhibits high sensitivity and provides an image having high contrast and high density, with neither black pepper nor residual color in the non-image area.

REFERENCES:
patent: 4518689 (1985-05-01), Noguchi et al.
patent: 4569904 (1986-02-01), Okutsu et al.
patent: 4609621 (1986-09-01), Sugimoto et al.
patent: 4681836 (1987-07-01), Inoue et al.
patent: 4722884 (1988-02-01), Inoue et al.
patent: 4755448 (1988-07-01), Katoh
patent: 4786587 (1988-11-01), Kuwabara
Patent Abstracts of Japan, vol. 10, No. 183, p. 472, Jun. 26, 1986 (JP-A-61-29837).
Patent Abstracts of Japan, vol. 11, No. 203, p. 591, Jul. 2, 1987 (JP-A-62-25745).

Affiliated with

Also associated with

Rating

Silver halide photographic material and method for forming an im 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 and method for forming an im, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silver halide photographic material and method for forming an im will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1184276