EP0239363A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Light-sensitive silver halide photographic material feasible for high speed processing
Assignee: Konica Minolta Inc
•
Filing: 1987-03-24
•
Granted: —
•
Expires: 2007-03-24
Abstract
Abstract Disclosed is a light-sensitive silver halide photographic material which comprises photographic layers applied under the condition that the surface tension of a coating solution for forming an outermost layer is 6 dyn/cm or more smaller than the surface tension of a solution for forming a layer adjacent to the outermost layer, and satisfying at least one of the conditions shown below : (a) gelatin contained in at least the side of a support having a light-sensitive silver halide emulsion layer and a hydrophilic colloid layer is in an amount of 2.20 to 3.10 g,/ m 2, (b) the photographic layers are formed by the constitution such that said coating solution for forming the outermost layer and said solution for forming the layer adjacent thereto each have a viscosity of 20 cp or less. The light-sensitive silver halide photographic material obtained by this invention can be processed with a high speed processing, and has high sensitivity and also excellent pressure resistance and graininess even when subjected to an ultra rapid processing.
Inventors
- 👤 Akio Suzuki
- 👤 Satoru Nagasaki
- 👤 Eiji Yoshida
- 👤 Masumi Hosaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 11:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C1/74; G03C2001/7481
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
131 words
I. A light-sensitive silver halide photographic material which comprises photographic layers applied under the condition that the surface tension of a coating solution for forming an outermost layer is 6 dyn/cm or more smaller than the surface tension of a solution for forming a layer adjacent to the outermost layer, and satisfying at least one of the conditions shown below: (a) gelatin contained in at least the side of a support having a light-sensitive silver halide emulsion layer and a hydrophilic colloid layer is in an amount of 2.20 to 3.10 g/m 2 , (b) the photographic layers are formed by the constitution such that said coating solution for forming the outermost layer and said solution for forming the layer adjacent thereto each have a viscosity of 20 cp or less.
Claim 2
Dependent Claim
297 words
The light-sensitive silver halide photographic material according to Claim I, which comprises at least one silver halide emulsion layer containing at least one compound selected from the group of the compounds represented respectively by Formulas (I), (II) and (III) shown below. wherein R 1 , R 2 and R 3 each represent a substituted or unsubstituted alkyl group, alkenyl group or aryl group, and at least one of R 1 and R 3 represents a sulfoalkyl group or a carboxyalkyl group; X 1 - represents an anion; Zi and Z 2 represent a group of nonmetallic atoms necessary for the completion of a substituted or unsubstituted carbon ring; and n represents I or 2, provided that n is I when an intramolecular salt is formed, wherein R 4 and Rs each represent a substituted or unsubstituted alkyl group, alkenyl group or aryl group, and at least one of R 4 and Rs represents a sulfoalkyl group or a carboxyalkyl group; R 6 represents a hydrogen atom, a lower alkyl group or an aryl group; X 2 - represents an anion, Z 1 and Z 2 represent a group of nonmetallic atoms necessary for the completion of a substituted or unsubstituted carbon ring; and n represents I or 2, provided that n is I when an intramolecular salt is formed, wherein R 7 and R 9 each represent a substituted or unsubstituted lower alkyl group; R 8 and Rio each represent a lower alkyl group, a hydroxyalkyl group, a sulfoalkyl group or a carboxyalkyl group; Xs- represents an anion, Z 1 and Z 2 represent a group of nonmetallic atoms necessary for the completion of a substituted or unsubstituted carbon ring; and n represents I or 2, provided that n is I when an intramolecular salt is formed.
Claim 3
Dependent Claim
22 words
The light-sensitive silver halide color photographic material according to Claim l, wherein the outermost layer contains at least one surface active agent.
Claim 4
Dependent Claim
43 words
The light-sensitive silver halide color photographic material according to Claim I, wherein the difference in the viscosity between the coating solution for forming the outermost layer and the solution for forming the layer adjacent thereto is in the range of ± 2 cp.
Claim 5
Dependent Claim
71 words
The light-sensitive silver halide color photographic material according to Claim 2, wherein the anion represented by X 1 - in Formula (I) is a chloride ion, a bromide ion, an iodide ion, a thiocyanate ion, a sulfate ion, a perchlorate ion, a p-toluene sulfonate ion or an ethyl sulfate ion; and the substituted or unsubstituted carbon ring containing Z 1 or Z 2 is substituted or unsubstituted benzene or naphthalene ring.
Claim 6
Dependent Claim
111 words
6 . The light-sensitive silver halide color photographic material according to Claim 2, wherein the lower alkyl group represented by Rs in Formula (II) is a methyl group, an ethyl group, a propyl group or a butyl group; the aryl group represented by R 6 in Formula (II) is a phenyl group; the anion represented by X 2 - in Formula (II) is a chloride ion, a bromide ion, an iodide ion, a thiocyanate ion, a sulfate ion, a perchlorate ion, a p-toluene sulfonate ion or an ethyl sulfate ion; and the substituted or unsubstituted carbon ring containing Z 1 or Z 2 is substituted or unsubstituted benzene or naphthalene ring.
Claim 7
Dependent Claim
126 words
The light-sensitive silver halide color photographic material according to Claim 2, wherein the unsubstituted lower alkyl group represented by R 7 and Rg in Formula (III) is a methyl group, an ethyl group, a propyl group or a butyl group; the lower alkyl group represented by R 8 and Rio in Formula (III) is a methyl group, an ethyl group, a propyl group or a butyl group; the anion represented by X 3 - in Formula (III) is a chloride ion, a bromide ion, an iodide ion, a thiocyanate ion, a sulfate ion, a perchlorate ion, a p-toluene sulfonate ion or an ethyl sulfate ion; and the substituted or unsubstituted carbon ring containing Z 1 or Z 2 is substituted or unsubstituted benzene or naphthalene ring.
Claim 8
Dependent Claim
55 words
The light-sensitive silver halide color photographic material according to Claim 2, wherein the total amount of the compounds represented by Formulas (I), (II) and (III) contained in the silver halide emulsion layer is within the range of from 10 mg to 900 mg per I mole of silver halide in the silver halide emulsion layer.
Claim 9
Dependent Claim
65 words
The light-sensitive silver halide color photographic material according to Claim 2, wherein the silver halide emulsion layer comprises silver halide grains substantially comprising silver iodobromide and having multi-layer structure, and the difference in average iodine contents between two layers in the multi-layers of the silver halide grain, which are adjacent to each other and each have uniform iodine distribution, is 10 mole % or less.
Claim 10
Dependent Claim
33 words
The light-sensitive silver halide color photographic material according to Claim 8, wherein an inner nucleus and coats of the multi-layers in the silver halide grains comprise silver bromide, silver iodobromide or silver iodide.
Claim 11
Dependent Claim
32 words
II. The light-sensitive silver halide color photographic material according to Claim 8, wherein the most surface layer of the multi-layer of the silver halide grains comprise substantially silver bromide or silver iodobromide.
Claim 12
Dependent Claim
39 words
The light-sensitive silver halide color photographic material according to Claim I, wherein the average grain size of silver halide emulsion grains contained in the light-sensitive silver halide color photographic material is within the range of 0.30 to 1.50 µm.
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