IP Library Granted Patent US 7,135,275
Granted Patent B2
US 7,135,275 · App. 10/920,275 · Granted Nov 14, 2006

Solid bleach-fixing composition for silver halide color photographic light-sensitive material, and method for processing silver halide color photographic light-sensitive material

Assignee: Fuji Photo Film Co., Ltd.
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Quick Facts
Patent No.
US 7,135,275
App. No.
10/920,275
Granted
Nov 14, 2006
Kind
B2
Abstract

A solid bleach-fixing composition for a silver halide color photographic light-sensitive material, comprising at least one specific 5-membered heterocyclic azoliumthiolate compound, particularly, a solid bleach-fixing composition wherein the specific thiolate compound is a diazolium-thiolate compound substituted by a water-soluble group. A method for processing a silver halide color photographic light-sensitive material, comprising using a bleach-fixing solution containing a specific 5-membered heterocyclic azoliumthiolate compound, and regenerating at least 50 mass % of the used bleach-fixing solution as a bleach-fixing processing agent for replenishment; and a method for processing a silver halide color photographic light-sensitive material, comprising regenerating at least 30 mass % of the used processing solution further containing used rinsing solution as a bleach-fixing processing agent for replenishment.

Claims (6)

1. A solid bleach-fixing composition for a silver halide color photographic light-sensitive material, comprising at least one compound represented by formula (Ia):

wherein Y′ represents N—R 6 or NNR 7 R 8 ; and R 6 , R 7 , R 8 , R 9 and R 10 are the same or different and each represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms, provided that R 7 , R 8 and R 9 each may be a hydrogen atom and that at least one of R 6 , R 7 , R 8 , R 9 and R 10 is substituted by at least one carboxylic acid group or sulfonic acid group,

and further comprising a silver complex salt of said at least one compound represented by formula (Ia).

2. The solid bleach-fixing composition for a silver halide color photographic light-sensitive material according to claim 1 , which contains substantially no thiosulfate.

3. The solid bleach-fixing composition for a silver halide color photographic light-sensitive material according to claim 1 , which is a granular bleach-fixing composition.

4. The solid bleach-fixing composition for a silver halide color photographic light-sensitive material according to claim 1 , which is a tablet bleach-fixing composition.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2007
From: FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.)
To: FUJIFILM CORPORATION
Reel/Frame 018904/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2004
From: YOSHIDA, KAZUAKI
To: FUJI PHOTO FILM CO., LTD.
Reel/Frame 016099/0611 →
Priority Claims (2)
JP P.2003-304849 · Aug 28, 2003 · national
JP P.2003-323035 · Sep 16, 2003 · national
Continuity (1)
Related Publication 20050053873A1 · Mar 10, 2005