Silver halide photographic material

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified backing or protective layer containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

430538, 430605, 430608, 162 78, 162 80, 162157C, 162182, G03C 186

Patent

active

043539815

ABSTRACT:
A silver halides photographic material with improved keeping quality, said material having a substrate formed by coating a base web with a film-forming resin, preferably a polyolefin resin, said base web being composed principally of natural pulp or a mixture of two or more different types of natural pulp having a post color number of 2 or below, said post color number being defined by the following formula: ##EQU1## [wherein Ro is brightness (%).times.(1)/(100) before fading treatment, R is brightness (%).times.(1)/(100) after 18-hour fading treatment at 85.degree. C. and 95% RH, and P is post color (PC) number which indicates the degree (nondimensional number) of fading].

REFERENCES:
patent: 3100732 (1963-08-01), Smedberg
patent: 3284283 (1966-11-01), Kindron et al.
patent: 3582337 (1971-06-01), Griggs et al.
patent: 3865685 (1975-02-01), Hebbel et al.
patent: 3885962 (1975-05-01), MacClaren
patent: 3901711 (1975-08-01), Iwaosa et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

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

     

Profile ID: LFUS-PAI-O-223857

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.