Photographic developing process

Details Photographic developing process Photographic developing process

1981-10-19

1982-12-14

Louie, Jr., Won H.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Treating with process composition between standard develop...

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:
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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.

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