US4917993A
Expired / Lapsed
US
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Silver halide photographic materials
Assignee: Fujifilm Holdings Corp
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Filing: 1988-12-19
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Granted: 1990-04-17
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Expires: 2008-12-19
Abstract
Abstract A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of the silver halide photographic material and wherein an organic material selected from the group consisting of a natural or synthetic water-soluble polymer is contained in at least one of the light-sensitive silver halide emulsion layer and the other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in the layers of the silver halide photographic material is washed out from the layer during development processing: A--X--Y--B (I) wherein A represents an alkyl group, an alkenyl group or an aryl group, which has from 8 to 25 carbon atoms; X represents ##STR1## wherein R represents an alkyl group having from 1 to 10 carbon atoms or --Y--B; Y represents a group consisting of at least one of each of the units ##STR2## wherein a represents from 5 to 50; and b represents from 2 to 20; and B represents hydrogen or an alkyl group having not more than 8 carbon atoms, an alkylcarbonyl group having not more than 8 carbon atoms, or a phenyl group having not more than 8 carbon atoms.
Inventors
- 👤 Yasuo Mukunoki
- 👤 Masakazu Yoneyama
- 👤 Sumito Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:19
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C1/76; G03C1/85; G03C1/89; G03C1/895; Y; Y10; Y10S; Y10S430/00; Y10S430/167
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
234 words
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of said silver halide photographic material and wherein an organic material selected from the group consisting of a natural or synthetic water-soluble polymer is contained in at least one of said light-sensitive silver halide emulsion layer and said other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in said layer of said silver halide photograpic material is washed out from said layer during development processing: A--X--Y--B (I) wherein A represents an alkyl group having from 8 to 25 carbon atoms, an alkenyl group having from 8 to 25 carbon atoms or an aryl group having from 8 to 25 carbon atoms; X represents ##STR45## wherein R represents an alkyl group having from 1 to 10 carbon atoms or --Y--B; Y represents a group consisting of at least one of each of the units ##STR46## wherein a represents from 5 to 50; and b represents from 2 to 20; and B represents hydrogen or an alkyl group having not more than 8 carbon atoms, an alkylcarbonyl group having not more than 8 carbon atoms, or a phenyl group having not more than 8 carbon atoms.
Claim 2
Dependent Claim
234 words
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of said silver halide photographic material and wherein an organic material selected from the group consisting of a natural or synthetic water-soluble polymer is contained in at least one of said light-sensitive silver halide emulsion layer and said other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in said layer of said silver halide photograpic material is washed out from said layer during development processing: A--X--Y--B (I) wherein A represents an alkyl group having from 8 to 25 carbon atoms, an alkenyl group having from 8 to 25 carbon atoms or an aryl group having from 8 to 25 carbon atoms; X represents ##STR45## wherein R represents an alkyl group having from 1 to 10 carbon atoms or --Y--B; Y represents a group consisting of at least one of each of the units ##STR46## wherein a represents from 5 to 50; and b represents from 2 to 20; and B represents hydrogen or an alkyl group having not more than 8 carbon atoms, an alkylcarbonyl group having not more than 8 carbon atoms, or a phenyl group having not more than 8 carbon atoms.
Claim 3
Dependent Claim
28 words
The silver halide photographic material as claimed in claim 1, wherein said compound represented by formula (I) is contained in a surface protective layer or a backing layer.
Claim 4
Dependent Claim
34 words
The silver halide photographic material as claimed in claim 1, wherein the amount of said compound represented by formula (I) used is from 0.0001 to 2.0 g per square meter of the sensitive material.
Claim 5
Dependent Claim
46 words
The silver halide photographic material as claimed in claim 1, wherein said organic material is a natural water-soluble polymer selected from the group consisting of lignin, starch, pluran, cellulose, alginic acid, dextran, dextrin, guam gum, gum arabic, glycogen, laminaran, licherin, nigeran, glucose polymers, or derivatives thereof.
Claim 6
Dependent Claim
227 words
The silver halide photographic material as claimed in claim 1, wherein said organic material is a water-soluble polymer having from 10 to 100 mol % of a repeating unit represented by formula (P) having a molecular weight of from 10,000 to 20,000, and having a solubility of at least 0.05 g per 100 g of water at 20° C.: ##STR47## wherein R 1 and R 2 may be the same or different, and each represents a hydrogen atom, an unsubstituted or substituted alkyl group; Y represents a hydrogen atom or --L) p (J) q Q; L represents --CONH--, --NHCO--, --COO--, --OCO--, --CO-- or --O--; J represents an unsubstituted or substituted alkylene group, an unsubstituted or substituted arylene group, ##STR48## (wherein m is an integer of 1 to 40 and n is an integer of 0 to 4); Q represents ##STR49## a hydrogen atom or a group represented by R 3 (wherein M represents a hydrogen atom or a cation, R 9 represents an alkyl group having from 1 to 4 carbon atoms, R 3 , R 4 , R 5 , R 6 , R 7 and R 8 each represents a hydrogen atom, an alkyl group having from 1 to 20 carbon atoms, an alkenyl group, a phenyl group, or an aralkyl group, and X represents an anion); p and q each represents 0 or 1.
Claim 7
Dependent Claim
35 words
A process which comprises developing an exposed silver halide photographic material of claim 1, wherein at least 10% by weight of said organic material originally present in said layers is washed out during said developing.
References Cited (Backward Citations)
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