Color photographic element containing speed improving compound

A color photographic origination element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non silver containing light insensitive layer, said layer containing a heterocycle compound with a minimum of three heteroatoms as part of the ring system that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound.

A color photographic origination element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said layer containing a nitrogen heterocycle compound with at least two fused rings, of which at least one is a six membered ring;

• and which contains as part of those two fused rings at least 4 nitrogen atoms in which 3 of said nitrogen atoms cannot be consecutive unless either (a) one of the 3 consecutive nitrogens is in a bridgehead position or (b) all 3 of the consecutive nitrogens are in the same six membered ring;
• and provided that the ClogP for the compound is at least 6.2.

A color photographic origination element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said layer containing a nitrogen heterocyclic compound with at least two fused rings, of which at least one is a six membered ring;

• and which contains as part of those two fused rings at least 4 nitrogen atoms in which 3 of said nitrogen atoms cannot be consecutive unless either (a) one of the 3 consecutive nitrogens is in a bridgehead position or (2) all 3 of the consecutive nitrogens are in the same six membered ring;
• wherein the nitrogen heterocyclic compound is substituted with an alkoxy or alkylthio group that contains at least fourteen carbon atoms.

A color photographic element comprising a light sensitive silver halide emulsion layer containing an image dye-forming coupler and a heterocycle compound which does not react with oxidized developer the compound having a minimum of three heteroatoms as part of the ring system and having a ClogP sufficient to increase the speed of said layer compared to the same layer without the compound and wherein the molar ratio of the dye-forming coupler(s) to the silver present in the layer is less than 0.5.

A color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound wherein the compound is dispersed in an organic solvent that has a ClogP of 5.0 or greater and a beta of 0.4 or more.

A color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound wherein the compound is present in an amount sufficient to increase the speed of a neutral exposure by at least 0.1 of a stop compared to the same element without the compound.

A color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one light sensitive layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound.

A color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a nitrogen heterocycle compound with at least two fused rings, of which at least one is a six membered ring;

• and which contains as part of those two fused rings at least 4 nitrogen atoms in which 3 of said nitrogen atoms cannot be consecutive unless either (a) one of the 3 consecutive nitrogens is in a bridgehead position or (b) all 3 of the consecutive nitrogens are in the same six membered ring;
• and provided that the ClogP for the compound is at least 6.2, wherein the silver halide is silver iodobromide.