The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1984
Filed:
Nov. 12, 1982
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A process for bleaching color photographic sensitive materials and color photographic sensitive materials are disclosed. The process comprises bleaching the silver halide color photographic sensitive materials which are comprised of a support base, a silver halide emulsion layer, and a compound represented by the general formula (I) or strong acid salts thereof in a layer which does not substantially form silver salts of said compounds with a treating solution containing persulfate after being exposed to the light and carrying out color development: ##STR1## wherein M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal, a quaternary ammonium group, a quaternary phosphonium group, an amidino group or ##STR2## R.sup.1 and R.sup.2 each represents a hydrogen atom or an aliphatic group, and m represents an integer of 2 to 4. The bleaching process effectively bleaches color sensitive materials having a high silver content and/or a colloidal silver layer without creating a bad odor.