Claims
- 1. A process for developing exposed negative silver halide photographic elements comprising developing said elements in a photographic developer comprising at least one developing agent selected from the group consisting of
- (a) ascorbic acid,
- (b) ascorbic acid derivatives,
- (c) alkali salts of (a) and (b), and
- (d) mixtures of (a) through (c);
- for a development time less than 1 minute, in the presence of a development accelerator having the general formula:
- [A--(CH.sub.2).sub.m --(Y).sub.n --(Z).sub.k --(CH.sub.2).sub.p --B, qX]
- (A--(CH.sub.2).sub.m --(Y).sub.n --(Z).sub.k --(CH.sub.2).sub.p --B) qX ##STR4## B is selected from the group consisting of A, hydrogen, phenyl, sulfonate, protonated substituted amino groups, unprotonated substituted amino groups, protonated unsubstituted amino groups, and unprotonated unsubstituted amino groups;
- Y is a carbonyl or an ester group;
- Z is phenylene;
- m is an integer from 0 to 8;
- p is an integer from 0 to 8;
- k is 0 or 1;
- n is 0 or 1;
- with the proviso that m+n+p+k is greater than 0, and further with the proviso that when n is 1, m +p is greater than 0;
- R.sub.1 through R.sub.5 [R.sub.9 ] are independently selected from the group consisting of hydrogen, halogen, amino, saturated alky containing 1 to 10 carbon atoms and unsaturated alkyl containing 1 to 10 carbon atoms, wherein adjacent R groups can form a saturated or unsaturated ring;
- X is a counterion; and
- q is an integer from 0 to 2 and is selected to balance the charge of the development accelerator.
- 2. The process of claim 1, wherein the development accelerator is selected from the group consisting of 1-phenethyl-2-picolinium bromide, ethyl-(alpha-pyridinium) acetate bromide; 1-phenethyl-4-(dimethylamino) -pyridinium bromide; cetyl pyridinium bromide; 1-phenethyl-quinolinium bromide; 1-(N,N-dimethylacetamido)pyridinium chloride; 1-[(N,N-dimethylammonium) ethyl]dihydroquinoline bromide; 1-phenethyl-4 -methyl-pyridinium bromide; 1-phenethyl-3,5-methyl-pyridinium bromide; 1 -phenethyl-4 -ethyl-pyridinium bromide; 1-ethylquinolinium iodide; 1- (3-sulfapropyl) pyridinium hydroxide, inner salt; 1-ethyl-2-methylpyridinium bromide; 1,2dimethylquinolinium methylsulfate; 1,4-(dipyridinium) butane dibromide; 1,3- (di-2-methyl-pyridinium)propane propane dibromide; 1- (2-phenethyl) iso-quinolinium bromide; 1,6- (di-2-methylpyridinium) hexane dibromide; 1,4-di benzene dibromide; and 1-(N,N-diethylaminoethyl) -pyridinium chloride hydrochloride salt.
- 3. The process of claim 1 or 2, wherein the development accelerator is present in said photographic element.
- 4. The process of claim 3 wherein the development accelerator is present in the range of 0.05 g to 2.0 g/unit of silver halide wherein one unit equals 1.5 moles silver.
- 5. The process of claim 1 or 2, wherein the development accelerator is present in said developer.
- 6. The process of claim 5, wherein the development accelerator is present in the range of 0.05 g to 1.5 g/L of developer.
- 7. The process of claim 1, wherein said at least one developing agent is a mixture of L-ascorbic acid and sodium ascorbate.
- 8. The process of claim 1, wherein the silver halide element contains a hydrazine.
- 9. A process for developing exposed silver halide photographic elements which comprise a silver halide emulsion whose silver halide consists of a halide content of 80 mole % Cl, 19.5 mole % Br, and 0.5 mole % I and whose silver halide emulsion contains 2-(4-benzyloxyphenyl)-1-pyridinium acetyl-hydrazine bromide, the process comprising developing said elements in a photographic developer comprising at least one developing agent in the presence of a development accelerator having the general formula:
- (A--(CH.sub.2).sub.m --(Y).sub.n --(Z).sub.k --(CH.sub.2).sub.p --B) qX
- wherein
- A is ##STR5## B is selected from the group consisting of A, hydrogen, phenyl, sulfonate, protonated substituted amino groups, unprotonated substituted amino groups, protonated unsubstituted amino groups, and unprotonated unsubstituted amino groups;
- Y is a carbonyl or an ester group;
- Z is phenylene;
- m is an integer from 0 to 8;
- p is an integer from 0 to 8;
- k is 0 or 1;
- n is 0 or 1;
- with the proviso that m+n+p+k is greater than 0, and further with the proviso that when n is 1, m +p is greater than 0;
- R.sub.1 through R.sub.9 are independently selected from the group consisting of hydrogen,. halogen, amino, saturated alkyl containing 1 to 10 carbon atoms, and unsaturated alkyl containing 1 to 10 carbon atoms, wherein adjacent R groups can form a saturated or unsaturated ring;
- X is a counterion; and
- q is an integer from 0 to 2 and is selected to balance the charge of the development accelerator.
- 10. The process of claim 8, wherein said silver halide element comprises an emulsion comprising silver bromoiodide grains, wherein the iodide content comprises 0 to 2 mol % and contains 2-(4-benzyl-oxyphenyl)-1-pyridinium acetyl)-hydrazine bromide.
- 11. The process of claim 8, wherein said silver halide element comprises an emulsion comprising at least 90mol % chloride grains doped with at least 10-6 mole rhodium per mole silver and contains a chloride or bromide salt of 1-imidazolium.
- 12. A process for developing exposed negative silver halide photographic elements comprising developing said elements in a photographic developer comprising at least one developing agent selected from the group consisting of
- (a) ascorbic acid,
- (b) ascorbic acid derivatives,
- (c) alkali salts of (a) and (b), and
- (d) mixtures of (a) and (c), and
- wherein said developer further comprises 5-50 g/liter of an alkanol amine;
- for a development time of less than one minute, in the presence of a development accelerator having the general formula:
- (A--(CH.sub.2).sub.m --(Y).sub.n --(Z).sub.k --(CH.sub.2).sub.p --B) qX
- wherein
- A is ##STR6## B is selected from the group consisting of A, hydrogen, phenyl, sulfonate, protonated substituted amino groups, unprotonated substituted amino groups, protonated unsubstituted amino groups, and unprotonated unsubstituted amino groups;
- Y is a carbonyl or an ester group;
- Z is phenylene;
- m is an integer from 0 to 8;
- p is an integer from 0 to 8;
- k is 0or 1;
- n is 0or 1;
- with the proviso that m+n+p+k is greater than 0, and further with the proviso that when n is 1, m +p is greater than 0;
- R.sub.1 through R.sub.5 are independently selected from the group consisting of hydrogen, halogen, amino, saturated alkyl containing 1 to 10 carbon atoms and unsaturated alkyl containing 1 to 10 carbon atoms, wherein adjacent R groups can form a saturated or unsaturated ring;
- X is a counterion; and
- q is an integer from 0 to 2 and is selected to balance the charge of the development accelerator.
- 13. The process of claim 12, wherein said alkanol amine is n-butyldiethanolamine.
- 14. The process of claim 1 or 2, wherein said developer comprises:
- ______________________________________Ingredient Amount (g)______________________________________Sodium Erythorbate 10-150Trisodium Ethylenediamine-tetraacetic acid 1.0-10.0Sodium Sulfite (Anhyr.) 10-150Potassium Bromide 1.0-10.045% KOH Soln. (aq.) 10-504-Hydromethyl-4-Methyl-1-Phenyl-3-Pyrazolidone 0.01-1.5Benzotriazole 0.1-1.5Glucono Delta Lactone 0.5-2.51-Phenyl-5-Mercaptotetrazole 0.01-0.20Potassium Carbonate 10-1002-Mercaptobenzothiazole 0.01-203-(Diethylamino)-1,2-Propanediol 5-501-Phenethyl-2-Picolinium-Bromide 0.05-1.5n-butyldiethanolamine 5-50Water to 1 liter______________________________________
- 15. A process for developing exposed silver halide photographic elements which comprise a silver halide emulsion whose silver halide consists of a halide content of 80 mole % Cl, 19.5 mole % Br, and 0.5 mole % I and whose silver halide emulsion contains 2-(4-benzyloxyphenyl)-l-pyridinium acetyl-hydrazine bromide, the process comprising developing said elements in a photographic developer comprising at least one developing agent in the presence of a development accelerator selected from the group consisting of 1-phenethyl-2-picolinium bromide, ethyl- (alpha-pyridinium) acetate bromide; 1-phenethyl-4-(dimethylamino)-pyridinium bromide; cetyl pyridinium bromide; 1-phenethyl-quinolinium bromide; 1-(N,N-dimethylacetamido)pyridinium chloride; 1-allyl-3-((N,N-diethylammonium) ethyl) imidazolium chloride; 1-((N,N-dimethylammonium) ethyl ) dihydroquinoline bromide; 1-vinyl3((N,N-diethylammonium) ethyl) imidazolium chloride; 1-phenethyl-4-methyl-pyridinium bromide; 1-allyl-3 (2dimethylaminoethyl) imidazolium chloride, hydrochloride salt; 1-phenethyl-3,5-dimethyl-pyridinium bromide; 1-phenethyl-4-ethylpyridinium bromide; 1-ethylquinolinium iodide; 1-(3-sulfapropyl)pyridinium hydroxide, inner salt; 1-ethyl-2-methylpyridinium bromide; 1,2-dimethylquinolinium methylsulfate; 1,4-(dipyridinium) butane dibromide; 1,3- (di-2-methylpyridinium) propane dibromide; 1- (2-phenethyl) isoquinolinium bromide; 1,6-(di-2-methylpyridinium) hexane dibromide; 1-(4-(1-(2-methylpyridinium)methyl))benzyl-2-methylpyridinium dibromide; and 1-(N,N-diethylaminoethyl)-pyridinium chloride hydrochloride salt.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. Ser. No. 07/801,347, filed Dec. 2, 1991, now abandoned in favor of this application.
US Referenced Citations (36)
Foreign Referenced Citations (4)
Number |
Date |
Country |
2049253 |
Aug 1991 |
CAX |
0254195 |
Jul 1987 |
EPX |
7126462 |
Jul 1971 |
FRX |
2647940 |
Oct 1976 |
DEX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
801347 |
Dec 1991 |
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