Photographic developing process

Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Treating with process composition between standard develop...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

430463, 430449, 430439, G03C 530

Patent

active

043638694

ABSTRACT:
A two-component system for developing photosensitive materials provides a developing process which is not highly dependent upon critical values of time and temperature. The resultant developed materials possess less graininess than might be expected with conventional developer systems. The two-composition system is comprised of a first and a second composition employed as aqueous solutions, each containing an alkali sulfite. The first compositon comprises a phenylamine developer compound and hydroquinone.

REFERENCES:
patent: 1984086 (1934-12-01), Russell
patent: 2178896 (1939-11-01), Pifer
patent: 2662014 (1952-12-01), Umberger
patent: 2819165 (1958-01-01), MacKey
patent: 2885288 (1959-05-01), Beswick et al.
patent: 3161513 (1964-12-01), Henn
patent: 3265501 (1966-08-01), Johnson
Jacobson, Photographic Theory and Practice, American Photographic Book Publishing Company, Inc., N. Y., N. Y., pp. 514-515.

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

Photographic developing 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 Photographic developing process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic developing process will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1201740

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