Phenylsulfamoyl couplers, coupler compositions and photographic elements suited to forming integral sound tracks

In a silver halide photographic element comprising a support and, coated thereon, at least one layer unit which comprises a photographic silver halide emulsion layer containing coupler solvent particles dispersed therein,

• the improvement wherein said coupler solvent particles are comprised of a combination, capable of permitting the formation of a microcrystalline dye, of
• a coupler of the formula ##STR21## wherein R.sup.1 is either hydrogen or --SO.sub.2 NH--Ballast and
• Ballast is either a straight chain alkyl group of from 6 to 16 carbon atoms or ##STR22## wherein D is a divalent lower alkylene group of from 1 to 6 carbon atoms and D.sup.1 is a monovalent lower alkyl group of from 1 to 6 carbon atoms and
• a coupler solvent of the formula ##STR23## wherein R.sup.2 is hydrogen or lower alkyl of from 1 to 6 carbon atoms and is lower alkyl in at least one occurrence;
• said coupler and said coupler solvent being present in a weight ratio of from 1:1 to 1:2 and said coupler being present in a concentration of from 0.65 to 1.05 grams per square meter.

In a silver halide photographic element comprising a support and, coated thereon, at least one layer unit which comprises a photographic silver halide emulsion layer containing coupler solvent particles dispersed therein,

• the improvement wherein said coupler solvent particles are comprised of a combination, capable of permitting the formation of a microcrystalline dye, of
• a coupler of the formula ##STR24## wherein R.sup.1 is either hydrogen or --SO.sub.2 NH--Ballast and
• Ballast is either a straight chain alkyl group of from 6 to 16 carbon atoms or ##STR25## wherein D is a divalent lower alkylene group of from 1 to 6 carbon atoms and D.sup.1 is a monovalent lower alkyl group, of from 1 to 6 carbon atoms and
• a coupler solvent of the formula ##STR26## wherein R.sup.2 is hydrogen or lower alkyl of from 1 to 6 carbon atoms and is lower alkyl in at least one occurrence;
• said coupler and said coupler solvent being present in a weight ratio of from 4:1 to 1:1 and said coupler being present in a concentration of from 0.65 to 1.05 grams per square meter.

In a silver halide photographic element comprising a support and, coated thereon, at least one layer unit which comprises a photographic silver halide emulsion layer containing coupler solvent particles dispersed therein,

• the improvement wherein said coupler solvent particles are comprised of a combination, capable of permitting the formation of a microcrystalline dye, of
• a coupler of the formula ##STR27## wherein R.sup.1 is either hydrogen or --SO.sub.2 NH--Ballast and
• Ballast is either a straight chain alkyl group of from 6 to 16 carbon atoms or ##STR28## wherein D is a divalent lower alkylene group of from 1 to 6 carbon atoms and D.sup.1 is a monovalent lower alkyl group of from 1 to 6 carbon atoms and
• a coupler solvent of the formula ##STR29## wherein R.sup.2 is hydrogen or lower alkyl of from 1 to 6 carbon atoms and R.sup.3 is a straight-chain alkyl group of from 7 to 15 carbon atoms;
• said coupler and said coupler solvent being present in a weight ratio of from 4:1 to 2:1 and said coupler being present in a concentration of from 0.65 to 1.05 grams per square meter.

A composition which can be coated to form a layer of a photographic element comprising a hydrophilic colloid and coupler solvent particles dispersed therein in a photographically useful amount comprised of a combination, capable of permitting the formation of a microcrysalline dye, of

• a coupler of the formula ##STR30## wherein R is a coupling-off group,
• R.sup.1 is either hydrogen or --SO.sub.2 NH--Ballast and
• Ballast is a hydrophobic photographic ballasting group and
• a coupler solvent chosen from the group consisting of ##STR31## wherein R.sup.2 is hydrogen or lower alkyl of from 1 to 6 carbon atoms and is lower alkyl in at least one occurrence, and
• R.sup.3 is a straight-chain alkyl group of from 7 to 15 carbon atoms;
• said coupler and said coupler solvent being present in a weight ratio in the range of from 5:1 to 1:2.

A gelatino-silver halide emulsion which can be coated to form a layer of a photographic element comprising coupler solvent particles dispersed therein in a photographically useful amount comprised of a combination, capable of permitting the formation of a microcrystalline dye, of

• a coupler chosen from the group comprising
• m-[N-.delta.-(2',4'-di-amylphenoxy)butylsulfamoyl]-1-hydroxy-2-naphthanilid e,
• m-{N-[.beta.-(2,4-di-amylphenoxy)butylsulfamoyl]}-1-hydroxy-2-naphthanilide
• di-[m-(N-dodecyl)sulfamoyl]-1-hydroxy-2-naphthanilide and
• di-[m-(N-octyl)sulfamoyl]-1-hydroxy-2-naphthanilide and
• a coupler solvent chosen from the group comprising
• dibutyl phthalate,
• tricresyl phosphate and
• N,N-diethyl lauramide;
• and
• said coupler and said coupler solvent being present in a weight ratio in the range of from 5:1 to 1:2.