EP0171238A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Silver halide grains, preparation thereof and light-sensitive photographic material containing said grains
Assignee: Konica Minolta Inc
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Filing: 1985-07-26
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Granted: —
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Expires: 2005-07-26
Abstract
Abstract Disclosed are silver halide grains which has (110) crystal faces and comprises a silver halide composition consisting substantially of silver bromide or silver iodobromide; a preparation thereof which comprises controlling pAg at 8.0 to 9.5 during a period until at least 30 mole % of the total silver halide is formed in the step of preparing the silver halide grains while permitting at least one selected from the compounds represented by the formula (I), (II), (III) or (IV) shown below and the compounds having the recurring units represented by the formula (V) shown below to exist during the period: <CHEM> wherein R1, R2 and R3, which may be either the same or different, each represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a derivative of an amino group, an alkyl group, a derivative of an alkyl group, an aryl group, a derivative of an aryl group, a cycloalkyl group, a derivative of a cycloalkyl group, a mercapto group, a derivative of a mercapto group or -CONH-R4 (R4 is a hydrogen atom, an amino group, a derivative of an alkyl group, a derivative of an amino group, a halogen atom, a cycloalkyl group, a derivative of a cycloalkyl group, an aryl group or a derivative of an aryl group), R1 and R2 may be bonded together to form a ring, R5 represents a hydrogen atom or an alkyl group, X represents a monovalent group formed by eliminating one hydrogen atom from the compounds represented by the formula (I), (II), (III) or (IV), and J represents a divalent linking group; and a light-sensitive silver halide photographic material having a light-sensitive silver halide emulsion layer on a support, the emulsion layer containing silver halide grains having (110) crystal faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide, or at least one of the light-sensitive emulsion layers containing silver halide grains having semi-(110) faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
Inventors
- 👤 Syoji Matsuzaka
- 👤 Hideo Akamatsu
- 👤 Shu Nishiwaki
- 👤 Yoshihiko Suda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 12:32
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/035; G03C2200/00; G03C2200/06
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
21 words
Silver halide grains, having (110) crystal faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
Claim 2
Dependent Claim
21 words
Silver halide grains, having (110) crystal faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
Claim 3
Dependent Claim
29 words
Silver halide grains according to Claim 1, wherein said silver halide grains have 30 % or more of (110) crystal faces based on the total surfaces of the grains.
Claim 4
Dependent Claim
41 words
Silver halide grains according to Claim 1, wherein the ratios of the respective diffraction line intensities on the (111), (200) and (220) faces as determined by the powdery X-ray diffraction are as follows: (220)/(111) ≧ 8 % (220)/(200) > 5 %.
Claim 5
Dependent Claim
24 words
Silver halide grains according to Claim 1, wherein the content of silver iodide in said silver halide grains is 0 to 20 mole %.
Claim 6
Dependent Claim
21 words
Silver halide grains according to Claim 1, wherein the silver halide grains have semi-(110) face having ridgeline on the (110) face.
Claim 7
Dependent Claim
27 words
Silver halide grains according to Claim 5, wherein the silver halide grains have 30 % or more of the semi-(ll0) faces based on the total grain surfaces.
Claim 8
Dependent Claim
19 words
Silver halide grains according to Claim 5, wherein the content of silver iodide is 0 to 20 mole %.
Claim 9
Dependent Claim
33 words
Hybridized silver salt crystal grains, comprising crystals of developable silver salts formed by epitaxial junction on the host grains consisting substantially of silver iodobromide or silver bromide having (110) faces and/or semi-(ll0) faces.
Claim 10
Dependent Claim
33 words
Hybridized silver salt crystal grains, comprising crystals of developable silver salts formed by epitaxial junction on the host grains consisting substantially of silver iodobromide or silver bromide having (110) faces and/or semi-(ll0) faces.
Claim 11
Dependent Claim
24 words
Silver halide grains, having (110) faces and/or semi-(ll0) faces and a core/shell structure, and comprising a silver halide composition consisting substantially of silver iodobromide.
Claim 12
Dependent Claim
24 words
Silver halide grains, having (110) faces and/or semi-(ll0) faces and a core/shell structure, and comprising a silver halide composition consisting substantially of silver iodobromide.
Claim 13
Dependent Claim
32 words
Silver halide grains according to Claim 9, wherein the ratio of the (110) faces and/or semi-(110) faces relative to the total surface area in the host grains is 30 % or more.
Claim 14
Dependent Claim
24 words
Silver halide grains according to Claim 9, wherein the ratio of silver iodide in the silver halide grains is 1 to 20 mole %.
Claim 15
Dependent Claim
27 words
Silver halide grains according to Claim 9, wherein the content of silver iodide in the cores of the silver halide grains is 3 to 40 mole %.
Claim 16
Dependent Claim
27 words
Silver halide grains according to Claim 9, wherein the content of silver iodide in the shells of the silver halide grains is 0 to 10 mole %.
Claim 17
Dependent Claim
26 words
Silver halide grains according to Claim 9, wherein the difference in silver iodide content between the cores and the shells is 2 to 30 mole %.
Claim 18
Dependent Claim
17 words
Silver halide grains according to Claim 9, wherein the shells have thicknesses of 0.01 to 0.3 um.
Claim 19
Dependent Claim
253 words
A process for producing silver halide grains, which comprises controlling pAg at 8.0 to 9.5 during a period until at least 30 mole % of the total silver halide is formed in the step of preparing the silver halide grains while permitting at least one selected from the compounds represented by the formula (I), (II), (III) or (IV) shown below and the compounds having the recurring units represented by the formula (V) shown below to exist during said period: wherein R 1 , R 2 and R 3 , which may be either the same or different, each represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a derivative of an amino group, an alkyl group, a derivative of an alkyl group, an aryl group, a derivative of an aryl group, a cycloalkyl group, a derivative of a cycloalkyl group, a mercapto group, a derivative of an mercapto group or -CO N H-R 4 ( R4 is a hydrogen atom, an amino group, a derivative of an alkyl group, a derivative of an amino group, a halogen atom, a cycloalkyl group, a derivative of a cycloalkyl group, an aryl group or a derivative of an aryl group), R and R 2 may be bonded together to form a ring, R 5 represents a hydrogen atom or an alkyl group, X represents a monovalent group formed by eliminating one hydrogen atom from the compounds represented by the formula (I), (II), (III) or (IV), and J represents a divalent linking group.
Claim 20
Dependent Claim
253 words
A process for producing silver halide grains, which comprises controlling pAg at 8.0 to 9.5 during a period until at least 30 mole % of the total silver halide is formed in the step of preparing the silver halide grains while permitting at least one selected from the compounds represented by the formula (I), (II), (III) or (IV) shown below and the compounds having the recurring units represented by the formula (V) shown below to exist during said period: wherein R 1 , R 2 and R 3 , which may be either the same or different, each represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a derivative of an amino group, an alkyl group, a derivative of an alkyl group, an aryl group, a derivative of an aryl group, a cycloalkyl group, a derivative of a cycloalkyl group, a mercapto group, a derivative of an mercapto group or -CO N H-R 4 ( R4 is a hydrogen atom, an amino group, a derivative of an alkyl group, a derivative of an amino group, a halogen atom, a cycloalkyl group, a derivative of a cycloalkyl group, an aryl group or a derivative of an aryl group), R and R 2 may be bonded together to form a ring, R 5 represents a hydrogen atom or an alkyl group, X represents a monovalent group formed by eliminating one hydrogen atom from the compounds represented by the formula (I), (II), (III) or (IV), and J represents a divalent linking group.
Claim 21
Dependent Claim
18 words
A process for producing silver halide grains according to Claim 16, wherein said pAg is 8.4 to 9.2.
Claim 22
Dependent Claim
34 words
A process for producing silver halide grains according to Claim 16, wherein the pH in the period until at least 30 mole % of the total silver halide is formed is 7 to 10.
Claim 23
Dependent Claim
36 words
A process for producing silver halide grains according to Claim 16, wherein the production steps have the step of adding an aqueous ammoniacal silver nitrate solution and a halide solution according to the double jet method.
Claim 24
Dependent Claim
40 words
A process for producing silver halide grains according to Claim 16, wherein the production steps have the grain growth step of adding an aqueous silver nitrate solution and a halide solution so that no new crystal nucleus may be formed.
Claim 25
Dependent Claim
45 words
A process for producing silver halide grains according to Claim 16, wherein the existing amount of at least one compound of the above formulae (I) through (V) is 1 x 10 -5 to 2 x 10 -1 mole per mole of the silver halide formed.
Claim 26
Dependent Claim
39 words
A silver halide photographic emulsion, comprising hybridized silver salt crystal grains comprising crystals of developable silver salts formed by epitaxial junction on the host grains consisting substantially of silver iodobromide or silver bromide having (110) faces and/or semi-(110) faces.
Claim 27
Dependent Claim
39 words
A silver halide photographic emulsion, comprising hybridized silver salt crystal grains comprising crystals of developable silver salts formed by epitaxial junction on the host grains consisting substantially of silver iodobromide or silver bromide having (110) faces and/or semi-(110) faces.
Claim 28
Dependent Claim
34 words
A silver halide photographic emulsion according to Claim 22, wherein the ratio of the (110) faces and/or semi-(ll0) faces relative to the total surface area in the host grains is 30 % or more.
Claim 29
Dependent Claim
43 words
A silver halide photographic emulsion according to Claim 22, wherein the ratios of the respective diffraction line intensities on the (111), (200) and (220) faces as determined by the powdery X-ray diffraction are as follows: (220)/(111) > 8 % (220)/(200) ≧ 5 %.
Claim 30
Dependent Claim
25 words
A silver halide photographic emulsion according to Claim 22, wherein the content of silver iodide in the host grains is 0 to 40 mole %.
Claim 31
Dependent Claim
44 words
A silver halide photographic emulsion according to Claim 22, wherein the silver salt epitaxially junctioned is at least one selected from silver iodobromide, silver bromide, silver chlorobromide, silver chloride, silver thiocyanate, silver cyanide, silver carbonate, silver ferricyanate, silver arsenate, silver arsenite and silver chromate.
Claim 32
Dependent Claim
34 words
A silver halide photographic emulsion according to Claim 22, wherein the silver salt epitaxially junctioned is selected from silver chloroiodide, silver chloroiodobromide and silver iodobromide containing 0 to 10 mole % of silver iodide.
Claim 33
Dependent Claim
41 words
A light-sensitive silver halide photographic material having a light-sensitive silver halide emulsion layer on a- support, said emulsion layer containing silver halide grains having (110) crystal faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
Claim 34
Dependent Claim
41 words
A light-sensitive silver halide photographic material having a light-sensitive silver halide emulsion layer on a- support, said emulsion layer containing silver halide grains having (110) crystal faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
Claim 35
Dependent Claim
44 words
A light-sensitive silver halide photographic material having light-sensitive silver halide emulsion layers on a support, at least one of the light-sensitive emulsion layers containing silver halide grains having semi-(110) faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
Claim 36
Dependent Claim
44 words
A light-sensitive silver halide photographic material having light-sensitive silver halide emulsion layers on a support, at least one of the light-sensitive emulsion layers containing silver halide grains having semi-(110) faces and comprising a silver halide composition consisting substantially of silver bromide or silver iodobromide.
References Cited (Backward Citations)
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