EP0138200B1
Expired / Lapsed
EP
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Silver halide photographic material and method for forming high contrast negative image using the same
Assignee: Fujifilm Holdings Corp
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Filing: 1984-10-11
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Granted: 1990-01-17
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Expires: 2004-10-11
Abstract
No abstract record available.
Inventors
- 👤 Nobuaki Inoue
- 👤 Yoshio Inagaki
- 👤 Kimitaka Kameoka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/061; G03C1/08; G03C1/09; Y; Y10; Y10S; Y10S430/00; Y10S430/15
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
128 words
A negative-working silver halide photographic material which has at least one silver halide emulsion layer and containing in said emulsion layer or another hydrophilic colloidal layer a compound represented by formula (I) wherein R 1 represents an aliphatic group or an aromatic group; R 2 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group; and G represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an N-substituted or unsubstituted imino group, characterized in that said silver halide emulsion layer contains silver halide grains containing from 1 x 10- 8 to 8 x 10- 6 mole of a rhodium salt per mole of silver.
Claim 2
Dependent Claim
128 words
A negative-working silver halide photographic material which has at least one silver halide emulsion layer and containing in said emulsion layer or another hydrophilic colloidal layer a compound represented by formula (I) wherein R 1 represents an aliphatic group or an aromatic group; R 2 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group; and G represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an N-substituted or unsubstituted imino group, characterized in that said silver halide emulsion layer contains silver halide grains containing from 1 x 10- 8 to 8 x 10- 6 mole of a rhodium salt per mole of silver.
Claim 3
Dependent Claim
24 words
A negative-working silver halide photographic material as in claim 1, wherein the aliphatic group for R 1 has from 1 to 30 carbon atoms.
Claim 4
Dependent Claim
24 words
A negative-working silver halide photographic material as in claim 1, wherein the aromatic group for R 1 is a monocyclic or dicyclic aryl group.
Claim 5
Dependent Claim
22 words
A negative-working silver halide photographic material as in claim 1, wherein the aromatic group for R 1 is an unsaturated heterocyclic group.
Claim 6
Dependent Claim
21 words
A negative-working silver halide photographic material as in claim 3, wherein the aryl group is a substituted or unsubstituted aryl group.
Claim 7
Dependent Claim
138 words
A negative-working silver halide photographic material as in claim 5, wherein the substituent for the substituted aryl group is a straight chain, branched chain or cyclic alkyl group, an aralkyl group, an alkoxy - group, a substituted amino group, an aliphatic acylamino group, an aromatic acylamino group, or a group of X(̵Y)̵ n ; in which n is 0 or 1, Y is a divalent linkage group, and X is a group having a bonding unit of a group having a bonding unit of a group represented by (wherein Z is non-metal atoms forming a 5- or 6-membered heterocyclic ring together with and R 31 is a hydrogen atom or saturated or unsaturated aliphatic group), a heterocyclic ring residue, an aralkyl group (in the case of n = 1), or an aryl group substituted by an alkyl group.
Claim 8
Dependent Claim
55 words
A negative-working silver halide photoqraphic material as in claim 6, wherein Y is wherein R 11 and R 12 each represents a divalent saturated or unsaturated aliphatic group, or a divalent aromatic group, in proviso that when Y is―R 11 ―R 12 ―, R 11 and R 12 represent divalent groups different from each other.
Claim 9
Dependent Claim
24 words
A negative-working silver halide photographic material as in claim 1, wherein the aryl group for R 2 is a monocyclic or dicyclic aryl group.
Claim 10
Dependent Claim
24 words
A negative-working silver halide photographic material as in claim 1, wherein the alkyl group for R 2 has from 1 to 4 carbon atoms.
Claim 11
Dependent Claim
24 words
A negative-working silver halide photographic material as in claim 1, wherein the alkoxy group for R 2 has from 1 to 8 carbon atoms.
Claim 12
Dependent Claim
22 words
A negative-working silver halide photographic material as in claim 1, wherein the aryloxy group for R 2 is a monocyclic aryloxy group.
Claim 13
Dependent Claim
39 words
A negative-working silver halide photographic material as in claim 1, wherein R 2 represents a hydrogen atom, a methyl group, a methoxy group, an ethoxy group, or a substituted or unsubstituted phenyl group, and G represents a carbonyl group.
Claim 14
Dependent Claim
33 words
A negative-working silver halide photographic material as in claim 1, wherein R 2 represents a methyl group, an ethyl group, a phenyl group, or a 4-methylphenyl group, and G represents a sulfonyl group.
Claim 15
Dependent Claim
36 words
A negative-working silver halide photographic material as in claim 1, wherein R 2 represents a methoxy group, an ethoxy group, a butoxy group, a phenoxy group, or a phenyl group, a G represents a phosphoryl group.
Claim 16
Dependent Claim
27 words
A negative-working silver halide photographic material as in claim 1, wherein R 2 represents a cyanobenzyl group or a methylthiobenzyl group, and G represents a sulfoxy group.
Claim 17
Dependent Claim
36 words
A negative-working silver halide photographic material as in claim 1, wherein R 2 represents a methyl group, an ethyl group, or a substituted or unsubstituted phenyl group, and G represents an N-substituted or unsubstituted imino group.
Claim 18
Dependent Claim
43 words
A negative-working silver halide photographic material as in claim 1, wherein the content of the compound of formula (I) ranges from 1 x 10- 6 mole to 5 x 10- 2 mole per mole of silver halide in the silver halide emulsion layer.
Claim 19
Dependent Claim
43 words
A negative-working silver halide photographic material as in claim 17, wherein the content of the compound of formula (I) ranges from 1 x 10- 5 mole to 2 x 10- 2 mole per mole of silver halide in the silver halide emulsion layer
Claim 20
Dependent Claim
43 words
A negative-working silver halide photographic material as in claim 1, wherein the silver halide emulsion layer contains silver halide grains prepared in the presence of from 1 x 10 -7 to 5 x 10- 6 mole of rhodium salt per mole of silver.
Claim 21
Dependent Claim
25 words
A negative-working silver halide photographic material as in claim 1, wherein the halide of said silver halide grains is at least about 40 mole% chloride.
Claim 22
Dependent Claim
27 words
' 21. A negative-working silver halide photographic material as in claim 1, wherein the halide of said silver halide grains is at least about 70 mole% chloride.
Claim 23
Independent Claim
66 words
A method for forming a high contrast negative image in which a silver halide photographic material is exposed to an imagewise pattern of light and then development-processed with a developer containing 0.15 mole/liter or more of sulfite ion and having a pH adjusted to from 9.5 to 12.3, characterized in that a silver halide photographic material according to any of claims 1 to 21 is used.
Claim 24
Dependent Claim
26 words
A high contrast negative image-forming method as in claim 22, wherein a development time for said silver halide photographic material is from 15 to 60 seconds.
Claim 25
Dependent Claim
29 words
A high contrast negative image-forming method as in claim 22, wherein said developer contains a dihydroxybenzene as a main developing agent and a 3-pyrazolidone as an auxiliary developing agent.
Claim 26
Dependent Claim
39 words
A high contrast negative image-forming method as in claim 24, wherein the amount of the dihydroxybenzene is from 0.05 to 0.5 mole/liter of the developer, and the amount of the 3-pyrazolidone is 0.06 mole/liter of the developer or less.
References Cited (Backward Citations)
No citation records indexed.
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