Title: Photographic chemistry

Abstract: A photographic chemistry comprised of a solution containing a mixture of different chemicals which cooperate to minimize the need for long film exposure times to achieve high film quality and contrast. The photographic chemistry includes a number of alkalies in a pH range from about 8 to 14, a developer in solution with the alkalies, a solvent mixed with the alkalies and the developer, a modified alkanolamide in solution with the alkalies, the developer and the solvent, and a hydrotrope mixed with the modified alkanolamide. Other chemicals that can be used in the photographic chemistry include an emulsion penetrant, a cleaner for various components of film processing equipment, a chelating agent, and an enzyme to enhance the reactions of the various chemicals in the photographic chemistry. A specific mixture of chemicals is disclosed.

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Inventors: Boots; Byron R. (Hayward, CA)

Application Number: 06/289561
Filing Date: 1981-08-03
Publication_date: 1983-05-10
Assignee: Boots, Lorin W.

Primary Class(es): 430/483 430/490, 430/484, 430/485, 430/486, 430/493
Other Classes: G03C5/30; G03C5/305; G03C5/30
US Patent Ref:

3438776	April, 1969	Yudelson	430/493	NON-AQUEOUS SILVER HALIDE PHOTOGRAPHIC PROCESS
3489686	January, 1970	Parran	252/542	DETERGENT COMPOSITIONS CONTAINING PARTICLE DEPOSITION ENHANCING AGENTS
3594322	July, 1971	Wilson	252/542
3859225	January, 1975	McKnight	252/171	DRYCLEANING DETERGENT COMPOSITION
4267255	May, 1981	Schreiber	430/486	Novel photographic processing composition

Other Refs: Other References: Research Disclosure, Apr. 1974, 12021, pp. 14-16.
Abst. of Belgium patent 612439, Jan. 9, 1962.

Primary Examiner: Downey, Mary F.
Assistant Examiner:
Attorney: Mcgannon, John L.

Claims:

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