Patent EP0123983A2 successfully refreshed from Google Patents.
EP0123983A2
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Silver halide photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1984-04-13
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Granted: —
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Expires: 2004-04-13
Abstract
Abstract A silver halide photographic light-sensitive material spectrally sensitized in an infrared region is described. The silver halide photographic light-sensitive material has at least one silver halide photographic emulsion layer containing at least one infrared-sensitizing dye represented by the following general Formula (I): wherein R 1 , R 2 , R, D, Z, Z 1 , X, and n are as described in the specification; and at least one compound represented by the following general Formula (II): wherein Z 2 , R 6 , R 7 and X 1 are as described in the specification. The silver halide photographic light-sensitive material has high sensitivity in an infrared spectral region and high preservability.
Inventors
- 👤 Yuji Mihara
- 👤 Toshinao Ukai
- 👤 Shoji Ishiguro
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 19:06
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
182 words
A silver halide photographic light-sensitive material having at least one silver halide photographic emulsion layer containing at least one infrared-sensitizing dye represented by the following general formula (I): wherein R 1 and R2' which may be the same or different, each represents an alkyl group or a substituted alkyl group, R represents a hydrogen atom, a lower alkyl group, a phenyl group or a benzyl group, D represents non-metallic atoms necessary for forming a 6-membered ring containing three methylene units, Z and Z 1 each represents non-metallic atoms necessary for completing a 5- or 6-membered, nitrogen-containing heterocyclic ring, X represents an acid anion, and n represents 1 or 2; and at least one compound represented by the following general formula (II): wherein Z 2 represents non-metallic atoms necessary for completing a 5- or 6-memberd, nitrogen-containing heterocyclic ring, R 6 represents a hydrogen atom, an alkyl group or an alkenyl group, R 7 represents a hydrogen atom or a lower alkyl group, and X 1 represents an acid anion, provided that when the general Formula (I) represents a betaine compound, n is 1.
Claim 2
Dependent Claim
182 words
A silver halide photographic light-sensitive material having at least one silver halide photographic emulsion layer containing at least one infrared-sensitizing dye represented by the following general formula (I): wherein R 1 and R2' which may be the same or different, each represents an alkyl group or a substituted alkyl group, R represents a hydrogen atom, a lower alkyl group, a phenyl group or a benzyl group, D represents non-metallic atoms necessary for forming a 6-membered ring containing three methylene units, Z and Z 1 each represents non-metallic atoms necessary for completing a 5- or 6-membered, nitrogen-containing heterocyclic ring, X represents an acid anion, and n represents 1 or 2; and at least one compound represented by the following general formula (II): wherein Z 2 represents non-metallic atoms necessary for completing a 5- or 6-memberd, nitrogen-containing heterocyclic ring, R 6 represents a hydrogen atom, an alkyl group or an alkenyl group, R 7 represents a hydrogen atom or a lower alkyl group, and X 1 represents an acid anion, provided that when the general Formula (I) represents a betaine compound, n is 1.
Claim 3
Dependent Claim
133 words
The silver halide photographic light-sensitive material as claimed in claim 1, wherein said silver halide photographic emulsion further contains at least one compound represented by the following general formula (III): wherein A represents:a divalent aromatic residue, R 8 , R 91 R 10 , and R 11 each represents a hydrogen atom, a hydroxy group, an alkyl group, an alkoxy group, an aryloxy group, a halogen atom, a heterocyclic ring nucleus, a heterocyclylthio group, an arylthio group, an amino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted arylamino group, a substituted or unsubstituted aralkylamino group, an aryl group, or a mercapto group, provided that at least one of A, R 8 , R 9 , R 10 and R 11 possesses a sulfo group, and W represents -CH= or -N=.
Claim 4
Dependent Claim
35 words
The silver halide photographic light-sensitive material as claimed in claim 1 or 2, wherein said silver halide photographic emulsion has a halide composition of AgClBr or AgClBrI containing 2 mol % or less of AgI.
Claim 5
Dependent Claim
39 words
The silver halide photographic light-sensitive material as claimed in one of the preceding claims, wherein Z and Z 1 in the general formula (I) each represents a benzothiazole nucleus, a naphthothiazole nucleus a naphtoxazole nucleus or a benzoxazole nucleus.
Claim 6
Dependent Claim
28 words
The silver halide photographic light-sensitive material as claimed in one of the preceding claims, wherein Z 2 in the general formula (II) represents thiazoliums, oxazoliums, imidazoliums, or selenazoliums.
Claim 7
Dependent Claim
31 words
The silver halide photographic light-sensitive material as claimed in Claim.5, wherein Z 2 in the general Formula (II) represents a benzothiazolium or naphthothiazolium, each of which may be substituted or unsubstituted.
Claim 8
Dependent Claim
24 words
The silver halide photographic light-sensitive material as claimed in one of claims 2 to 6, wherein W in the general formula (III) represents -CH=.
Claim 9
Dependent Claim
46 words
The silver halide photographic light-sensitive material as claimed in one of the preceding claims, wherein the infrared-sensitizing dye represented by the general Formula (I) is present in an amount of 5 x 10 -7 mal to 5 x 10 -3 mol per mol of silver halide.
Claim 10
Dependent Claim
38 words
The silver halide photographic light-sensitive material as in one of the preceding claims, wherein the compound represented by the general Formula (II) is present in an amount of about 0.01 g to about 5 g/mol of silver halide.
Claim 11
Dependent Claim
44 words
The silver halide photographic light-sensitive material as claimed in one of the preceding claims, wherein the ratio by weight of the infrared-sensitizing dye of the general Formula (I) to the amount of the compound represented by the general Formula (II) is 1/1 to 1/300.
Claim 12
Dependent Claim
41 words
The silver halide photographic light-sensitive material as claimed in one of the claims 2 to 10, wherein the compound represented by the general Formula (III) is present in an amount of about 0.01 g to about 5 g/mol of silver halide.
Claim 13
Dependent Claim
49 words
The silver halide photographic light-sensitive material as claimed in one of the claims 2 to 10, wherein the ratio by weight of the infrared-sensitizing dye represented by the general Formula (I) to the compound represented by the general Formula (III) is in the range of from 1/1 to 1/100.
References Cited (Backward Citations)
No citation records indexed.
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