Concentrated composition of blix solution for silver halide...

Radiation imagery chemistry: process – composition – or product th – Nonradiation sensitive image processing compositions or... – Process of preparing composition from plural preformed...

Reexamination Certificate

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C430S460000

Reexamination Certificate

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06927019

ABSTRACT:
A concentrated blix solution composition, which can remarkably reduce the replenishing amount of the blix solution and/or remarkably reduce the blix time, comprises: 1) a concentrated composition part containing a bleaching agent; and 2) a concentrated composition part containing a fixing agent, wherein the part concentrated composition 1) satisfies all the following conditions: (1) pH is from 2.0 to 3.5, (2) a specific gravity is 1.130 or more, (3) the bleaching agent comprises an iron(III) complex salt of an aminopolycarboxylic acid, (4) a concentration of the bleaching agent is from 0.5 to 1.0 mole/L, and (5) a content of an aminopolycarboxylic acid having not been complexed is from 0.1 to 3% by mole based on the bleaching agent, and a processing process using the same.

REFERENCES:
patent: 4956268 (1990-09-01), Nakazyo et al.
patent: 5391467 (1995-02-01), Yoshida et al.
patent: 5565310 (1996-10-01), Kawai
patent: 0 567 126 (1993-10-01), None
patent: 11-288068 (1999-10-01), None
Abstract of DE 4402916 A1, Aug. 3, 1995.
Abstract of JP4112888068A, Oct. 19, 1999.
Search Report issued in European Patent Application No. 03 01 6322, on Sep. 17, 2003.

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