Photographic coating compositions and photographic elements made therefrom
AssigneeEastman Kodak Company
InventorsPaul Leo Zengerle, John Victor Nelson, Mary Christine Brick
Life of this patent
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Abstract
A photographic coating composition comprising an aqueous medium containing a hydrophilic colloid and having dispersed therein solid particles of a yellow filter dye also contains a oxidized developer scavenger of formula III ##STR1## wherein x.sup.1 =hydrogen or a process cleavable group; R.sup.14 =an electron withdrawing and aqueous solubilizing group; R.sup.15 =a substituent group; R.sup.16 =a ballasting group; R.sup.17 =a substituent group; i=1, 2, 3, or 4; and j=1, 2, 3, or 4. The coating composition is stable with regard to crystal growth of the dispersed solid particles of filter dye even when held at coating temperatures (about 45.degree. C.) for several hours.
Claims13
A photographic element comprising a support having thereon at least one silver halide emulsion layer and a layer which is the same or different from said silver halide layer, comprising a binder having dispersed therein:
- a) particles comprising a filter dye of Formula I:
- ##STR35## wherein A=an acidic nucleus selected from the group consisting of benzoylacetonitrile, 2-phenyl-1,1,3-tricyanopropene, 5-pyrazolone, isooxazolone, barbituric acid, thiobarbituric acid, rhodanine, hydantoin, thiohydantoin, oxazolidindione, pyrazolidindione, indandione, pyrazolopyridone, 1,2,3,4-tetrahydroquinolin-2,4-dione, 3-oxo-2,3-dihydrobenzod!thiophene-1,1-dioxide and 3-dicynaomethine-2,3-dihydroxybenzod!thiophene-1,1-dioxide;
- L.sup.1-3 =each independently represents a substituted or unsubstituted methine group;
- n=0 or 1;
- R.sup.1-2 =each independently represents hydrogen or an alkyl, aryl or acyl groups (including alkoxycarbonyl, amido and carboxyl);
- Y=non-metal atoms which form a five membered heterocyclic ring optionally comprising a fused substituted or unsubstituted benzene ring;
- and
- wherein the dye comprises at least one ionizable group with a pKa value between 4-11 such as a carboxyl group, a sulfonamido group or a sulfamoyl group;
- or a filter dye of Formula II:
- ##STR36## R.sup.8 is substituted or unsubstituted alkyl or aryl;
- R.sup.9 is substituted or unsubstituted alkyl or aryl or a substituted or unsubstituted aromatic heterocyclic nucleus;
- and
- X is an electron withdrawing group;
- L, L', and L" are each independently a substituted or unsubstituted methine group;
- and
- x is 0 or a positive interger of from 1 to 6;
- and b) a hydrazide oxidized developer scavenger of Formula III:
- ##STR37## wherein X.sup.1 =hydrogen or a process cleavable group;
- R.sup.14 =an electron withdrawing and aqueous solubilizing group;
- R.sup.15 =a substituent group;
- R.sup.16 =a ballasting group;
- R.sup.17 =a substituent group;
- i=1, 2, 3, or 4;
- and
- j=1, 2, 3, or 4.
A photographic coating composition comprising an aqueous medium containing a hydrophilic colloid and having dispersed therein:
- a) particles comprising a filter dye of Formula I:
- ##STR44## wherein A=an acidic nucleus selected from the group consisting of benzoylacetonitrile, 2-phenyl-1,1,3-tricyanopropene, 5-pyrazolone, isooxazolone, barbituric acid, thiobarbituric acid, rhodanine, hydantoin, thiohydantoin, oxazolidindione, pyrazolidindione, indandione, pyrazolopyridone, 1,2,3,4-tetrahydroquinolin-2,4-dione, 3-oxo-2,3-dihydrobenzod!thiophene-1,1-dioxide and 3-dicynaomethine-2,3-dihydroxybenzod!thiophene-1,1-dioxide;
- L.sup.1-3 =each independently represents a substituted or unsubstituted methine group;
- n=0 or 1;
- R.sup.1-2 =each independently represents hydrogen or an alkyl, aryl or acyl groups (including alkoxycarbonyl, amido and carboxyl);
- Y=non-metal atoms which form a five membered heterocyclic ring optionally comprising a fused substituted or unsubstituted benzene ring;
- and
- wherein the dye comprises at least one ionizable group with a pKa value between 4-11 such as a carboxyl group, a sulfonamido group or a sulfamoyl group;
- or a filter dye of Formula II:
- ##STR45## R.sup.8 is substituted or unsubstituted alkyl or aryl;
- R.sup.9 is substituted or unsubstituted alkyl or aryl or a substituted or unsubstituted aromatic heterocyclic nucleus;
- and
- X is an electron withdrawing group;
- L, L', and L" are each independently a substituted or unsubstituted methine group;
- and
- x is 0 or a positive interger of from 1 to 6;
- and b) a hydrazide oxidized developer scavenger of Formula III:
- ##STR46## wherein X.sup.1 =hydrogen or a process cleavable group;
- R.sup.14 =an electron withdrawing and aqueous solubilizing group;
- R.sup.15 =a substituent group;
- R.sup.16 =a ballasting group;
- R.sup.17 =a substituent group;
- i=1, 2, 3, or 4;
- and
- j=1, 2, 3, or 4.
Dependencies are inferred from the claim text.