Photographic processing composition and bleaching or bleach-fixing method

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United States of America Patent

PATENT NO 5338649
SERIAL NO

08120461

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A process for bleaching or bleach-fixing an imagewise exposed silver halide photographic material is provided, comprising developing in a color developing solution and bleaching or bleach-fixing in a processing composition having a bleaching capacity containing as a bleaching agent a metal chelate compound of a chelate-forming compound or salt thereof and a metal ion selected from the group consisting of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(II), Au(III) and Ce(IV), the chelate-forming compound or salt thereof is represented by formula (I): ##STR1## wherein G.sub.1 and G.sub.2 each represents a carboxyl group, a phosphono group, a sulfo group, a hydroxyl group, a mercapto group, an aryl group, a heterocyclic group, an alkylthio group, an amidino group, a guanidino group or a carbamoyl group; L.sub.1, L.sub.2 and L.sub.3 each represents a divalent aliphatic group, a divalent aromatic group or a divalent connecting group formed by a combination of a divalent aliphatic group and a divalent aromatic group; m and n each represents an integer 0 or 1; R represents a hydrogen atom, an aliphatic group or an aromatic group; and M represents a hydrogen atom or a cation.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATIONTOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaba, Tadashi Kanagawa, JP 79 534
Katsuoka, Yasuhiro Kanagawa, JP 1 13
Okada, Hisashi Kanagawa, JP 111 2073
Seki, Hiroyuki Kanagawa, JP 236 3423
Suzuki, Ryo Kanagawa, JP 310 1888

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