Processing of a silver halide photgraphic with a peroxide bleach composition

摘要

A bleaching composition for processing an imagewise exposed and developed silver halide photographic element comprising hydrogen peroxide, or a compound which releases hydrogen peroxide, and at least one compound of Formula I R-(O)n-SO3M (I> wherein R is a group having 1 to 10 carbon atoms; n is 0 or 1; and M is a hydrogen atom, an alkali metal, an alkaline earth metal or an ammonium ion; and wherein the bleaching composition has a pH of 2 to 6 and is substantially free of a complex of a high valent metal ion and a polycarboxylic acid represented by Formula II, an aminocarboxylic acid represented by Formula III or a phosphonic acid represented by Formula IV or V R<1>(COOH)t (II> wherein R<1> represents a single bond, an unsubstituted or substituted alkylene group having 1 to 6 carbon atoms wherein the substituent is a hydroxy group and/or a carboxy group, a -(CH2)m-O-(CH2)n- group wherein m and n are integers and m+n is 2 to 6, a -(CH2)m'-S-(CH2)n'- group wherein m' and n' are integers and m'+n' is 2 to 6, or an alkenylene group having 2 to 6 carbon atoms; t is 2 or 3; and when R<1> is a single bond, t is 2, wherein R<2>, R<3>, R<4> and R<5> each represents a carboxyalkyl group wherein the alkyl moiety has 1 to 2 carbon atoms, a hydroxyalkyl group having 1 to 2 carbon atoms and/or a hydrogen atom; p represents zero or an integer of 1 to 3; L represents an alkylene group having 2 to 4 carbon atoms, a group wherein x is an integer of 2 to 4, y is an integer of 2 to 4 and z is an integer of 1 to 3, a 6-membered cyclic alkylene group, or an arylene group; and the aminocarboxylic acid of the formula (III) has at least 1 carboxy group, R<6> &lsqbstr& PO3H2 ]q (IV> R<6> &lsqbstr& LPO3H2]q (V> wherein R<6> represents a substituted or unsubstituted alkyl or alkylene group having 1 to 4 carbon atoms wherein the substituent is a hydroxy group and/or a carboxy group, or a substituted or unsubstituted diaminoalkylene group having 2 to 16 carbon atoms wherein the substituent is a hydroxy group; L represents an alkylene group having 1 to 2 carbon atoms; and q represents an integer of 1 to 5.