Light-sensitive silver halide photographic material prevented in color contamination

Claim 2

A light-sensitive silver halide photographic material having at least one light-sensitive emulsion layer and at least one non-light-sensitive emulsion layer on a support, the improvement wherein a coupler represented by the following formula (M-I) and an anti-fading additive having a quenching rate constant of a singlet oxygen of 1×10 7 M -1 ·sec -1 or more are contained in at least one layer of the light-sensitive emulsion layer, and a compound represented by the following formula (II) is contained in at least one layer selected from the light-sensitive emulsion layer and the non-light-sensitive emulsion layer: ##STR26## wherein Z represents a group of non-metallic atoms necessary for forming a nitrogen-containing heterocyclic ring, the ring formed by said Z may have a substituent(s), X represents hydrogen atom or an eliminatable group by the reaction with an oxidized product of a color developing agent, and R represents hydrogen atom or a substituent, ##STR27## wherein R 12 and R 13 each represent secondary or tertiary alkyl group, provided that total carbon atoms of the alkyl groups represented by R 12 and R 13 are 20 or more and the anti-fading additive is a compound represented by the formula (D): ##STR28## wherein R 1 represents an aryl group or a heterocyclic group; Z 1 and Z 2 each represent an alkylene group having 1 to 3 carbon atoms, provided that the total carbon atoms of the alkylene group represented by Z 1 and Z 2 are 3 to 6; and n is an integer of 1 or 2.

Claim 3

The material of claim 1 wherein the coupler represented by the formula (M-I) is a coupler represented by the formula selected from the group consisting of: ##STR29## wherein R 1 to R 8 each have the same meaning as R defined in claim 1 and X has the same meaning as X in claim 1.

Claim 4

The material of claim 1 wherein the coupler represented by the formula (M-I) is a coupler represented by the formula (M-VIII). ##STR30## wherein R 1 , X and Z 1 each have the same meanings as R 1 , X and Z defined in claim 1, respectively.

Claim 5

The material of claim 1 wherein an amount of the coupler represented by the formula (M-I) is 1×10 -3 mole to 1 mole per mole of silver halide contained in a light-sensitive emulsion layer.

Claim 6

The material of claim 1 wherein R 12 or R 13 in the compound of the formula (II) is sec-decyl group, sec-docecyl group, sec-tetradecyl group, sec-pentadecyl group, sec-hexadecyl group, sec-octadecyl group, sec-eicosyl group, sec-triacontyl group, t-decyl group, t-dodecyl group, t-tetradecyl group, t-hexadeycl group, t-octadecyl group or t-eicosyl group.

Claim 7

The material of claim 1 wherein said compound of the formula (II) is selected from the group consisting of: ##STR31##

Claim 8

The material of claim 1 wherein the compound of the formula (II) is contained in a non-emulsion layer.

Claim 9

The material of claim 1 wherein the compound of the formula (II) is contained in a non-light-sensitive layer adjacent to a layer containing the magenta coupler.

Claim 10

The material of claim 8 wherein the compound of the formula (II) is contained in a non-light-sensitive layer positioned close to the support and adjacent to a layer containing the magenta coupler.

Claim 11

The material of claim 8 wherein a number average molecular weight of the compound represented by the formula (D) is 300 or more.

Claim 12

The material of claim 8 wherein a number average molecular weight of the compound represented by the formula (D) is 400 or more.

Claim 13

The material of claim 1 wherein the quenching rate constant of the anti-fading additive is 2.5×10 7 M -1 ·sec -1 or more.

Claim 14

The material of claim 1 wherein the quenching rate constant of the anti-fading additive is 3×10 7 M -1 ·sec -1 or more.

Claim 15

A light-sensitive silver halide photographic material having at least one light-sensitive emulsion layer and at least one non-light-sensitive emulsion layer on a support, the improvement wherein a coupler represented by the following formula (M-VIII) and an anti-fading additive having a quenching rate constant of a singlet oxygen of 1×10 7 M -1 ·sec -1 or more, represented by the following formula (D) and having a molecular weight of 400 or more are contained in at least one layer of the light-sensitive emulsion layer, and a compound represented by the following formula (II) is contained in the non-light-sensitive emulsion layer adjacent to a layer containing said magenta coupler; ##STR32## wherein Z represents a group of non-metallic atoms necessary for forming a nitrogen-containing heterocyclic ring, the ring formed by said Z may have a substitutent(s), X represents hydrogen atom or an eliminatable group by the reaction with an oxidized product of a color developing agent, and R represents hydrogen atom or a substituent, ##STR33## wherein R 12 and R 13 each represent sec-decyl group, sec-docecyl group, sec-tetradecyl group, sec-pentadecyl group, sec-hexadecyl group, sec-octadecyl group, sec-eicosyl group, sec-triacontyl group, t-decyl group, t-dodecyl group, t-tetradecyl group, t-hexadeycl group, t-octadecyl group or t-eicosyl group, provided that total carbon atoms of the alkyl groups represented by R 12 and R 13 are 20 or more, ##STR34## wherein R 1 represents an aryl group or a heterocyclic group; Z 1 and Z 2 each represent an alkylene group having 1 to 3 carbon atoms, provided that the total carbon atoms of the alkylene group represented by Z 1 and Z 2 are 3 to 6; and n is an integer of 1 or 2.

Claim 16

A light-sensitive silver halide photographic material having at least one light-sensitive emulsion layer and at least one non-light-sensitive emulsion layer on a support, the improvement wherein a coupler represented by the following formula (M-VIII) and an anti-fading additive having a quenching rate constant of a singlet oxygen of 1×10 7 M -1 ·sec -1 or more, represented by the following formula (D) and having a molecular weight of 400 or more are contained in at least one layer of the light-sensitive emulsion layer, and a compound represented by the following formula (II) is contained in the non-light-sensitive emulsion layer adjacent to a layer containing said magenta coupler; ##STR32## wherein Z represents a group of non-metallic atoms necessary for forming a nitrogen-containing heterocyclic ring, the ring formed by said Z may have a substitutent(s), X represents hydrogen atom or an eliminatable group by the reaction with an oxidized product of a color developing agent, and R represents hydrogen atom or a substituent, ##STR33## wherein R 12 and R 13 each represent sec-decyl group, sec-docecyl group, sec-tetradecyl group, sec-pentadecyl group, sec-hexadecyl group, sec-octadecyl group, sec-eicosyl group, sec-triacontyl group, t-decyl group, t-dodecyl group, t-tetradecyl group, t-hexadeycl group, t-octadecyl group or t-eicosyl group, provided that total carbon atoms of the alkyl groups represented by R 12 and R 13 are 20 or more, ##STR34## wherein R 1 represents an aryl group or a heterocyclic group; Z 1 and Z 2 each represent an alkylene group having 1 to 3 carbon atoms, provided that the total carbon atoms of the alkylene group represented by Z 1 and Z 2 are 3 to 6; and n is an integer of 1 or 2.