Silver halide photographic light-sensitive material and processing method thereof

A silver halide photographic light-sensitive material comprising at least a light-sensitive silver halide emulsion layer applied on a support, wherein said emulsion layer or another hydrophilic colloidal layer comprises at least one kind of compounds selected from a group consisting of a quaternary nitrogen or phosphorus salt compound, having 20 or more of total recurring units consisting of an ethyleneoxy group and/or a propyleneoxy group in a molecule;

• a quaternary salt compound represented by the following formula (A);
• and a quaternary salt compound represented by the following formula (B):
• wherein Q represents a nitrogen atom or a phosphorus atom, R1, R2 and R3 each independently represent an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a heterocyclic group, L1 represents an alkylene group, Y represents —C (═O) or —SO2—, L2 represents a divalent connecting group having at least one hydrophilic group, Xn− represents an n-valent counter anion, and n represents an integer of 1 to 3, provided that Xn− can be omitted when another anionic group exists in a molecule and forms an intramolecular salt with P+ or a quaternary nitrogen atom,
• wherein A represents an organic moiety necessary to complete a nitrogen-containing aromatic heterocyclic ring, provided that the nitrogen-containing aromatic heterocyclic ring formed by A may have a substituent, but the substituent having thereon a primary hydroxyl group is excluded, and L1, Y, L2 and Xn− each have the same meanings as those of the formula (A),
• wherein the quaternary nitrogen or phosphorus salt compound having the total of 20 or more recurring units consisting of an ethyleneoxy group and/or a propyleneoxy group in a molecule, is represented by any one of the following formulae (I) to (IV):
• in formula (I), Q represents a nitrogen atom or a phosphorus atom, R10, R11 and R12 each represent an aliphatic group, an aromatic group, or a heterocyclic group, these groups may combine with each other to form a ring structure, M represents an m-valent organic group in which a carbon atom bonds to Q+, m represents an integer of 1 to 4;
• in formulae (II), (III) and (IV), A1, A2, A3, A4 and A5 each represent an organic moiety necessary to complete a quaternary nitrogen-containing unsaturated heterocyclic ring, L1 and L2 each represent a divalent connecting group, R1, R2 and R3 each independently represent a substituent;
• in formulae (I), (II), (III) and (IV), Xn− represents an n-valent counter anion, n represents an integer of 1 to 3, provided that Xn− can be omitted when another anionic group exists in a molecule and forms an intramolecular salt with Q+ or a quaternary nitrogen atom;
• the quaternary salts represented by formulae (I), (II), (III) and (IV) each have 20 or more of total recurring units consisting of an ethyleneoxy group and/or a propyleneoxy group in each of their molecules, said recurring units may be present at plural portions in the molecule.