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US4952491A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic light-sensitive material and method of developing the same

Assignee: Fujifilm Holdings Corp
•
Filing: 1988-09-09
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Granted: 1990-08-28
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Expires: 2008-09-09
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Abstract

Abstract A photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected surface area of silver halide grains contained in the silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol% of silver chloride, the tabular grains having been precipitated in the presence of a dye and having an aspect ratio of at least 2.

Inventors

  • 👤 Toshihiro Nishikawa
  • 👤 Shunji Takada

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 02:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09; G03C1/0051; G03C1/0053; G03C1/07; G03C1/10; G03C1/12; G03C1/14; G03C1/16; G03C1/18; G03C1/20; G03C1/22; G03C1/26; G03C1/34; G03C1/346; G03C2001/0055; G03C2001/091; G03C2001/095; G03C2001/096; G03C2200/00; G03C2200/03; G03C2200/33; G03C2200/40

Claims Analysis

Total Claims: 32
Claim 1
Independent Claim 119 words
A photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected surface area of silver halide grains contained in said silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol % of silver chloride, said tabular grains having been precipitated in the presence of a crystal habit controlling amount of a spectral sensitizing dye before and during nucleation and during precipitation of the silver halide grains, and having an aspect ratio of at least 2 and further wherein nucleation of said silver halide grains has been carried out under a chloride concentration of at least about 0.15 mol/liter.
Claim 2
Dependent Claim 119 words
A photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected surface area of silver halide grains contained in said silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol % of silver chloride, said tabular grains having been precipitated in the presence of a crystal habit controlling amount of a spectral sensitizing dye before and during nucleation and during precipitation of the silver halide grains, and having an aspect ratio of at least 2 and further wherein nucleation of said silver halide grains has been carried out under a chloride concentration of at least about 0.15 mol/liter.
Claim 3
Dependent Claim 218 words
A photographic light-sensitive material according to claim 1, wherein precipitation has been continued in the presence of at least one compound selected from those represented by formulae (I) and (II): ##STR257## wherein Z 1 represents an atom group which is required for the formation of a saturated or unsaturated heterocyclic ring together with a sulfur atom, and S represents the sulfur atom; and R.sub.1 --S--(X).sub.m --Y--R.sub.2 . . . (II) wherein X is an organic group having a valency of 2 and including at least one of alkylene, allylene, alkenylene, ##STR258## wherein R 3 is selected from the group of hydrogen, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aryl group; m is 0 or 1; R 1 is selected from the group of hydrogen, an alkali metal group, an alkali earth metal group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic ring including and N, S, or O atom; R 2 is selected from the group of a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic ring, a substituted or unsubstituted amino group, an alkoxy group, and an aryloxy group; and Y is selected from the group of --CO-- and --SO 2 --.
Claim 4
Dependent Claim 23 words
A photographic light-sensitive material according to claim 1, said tabular grains having been precipitated in a pH range maintained from 2 to 6.
Claim 5
Dependent Claim 16 words
A photographic light-sensitive material according to claim 1, wherein said dye is a methine sensitizing dye.
Claim 6
Dependent Claim 40 words
A photographic light-sensitive material according to claim 4, wherein said methine sensitizing dye is selected from at least one of cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes, and hemioxonol dyes.
Claim 7
Dependent Claim 22 words
A photographic light-sensitive material according to claim 1, said tabular grains having been chemically sensitized in the presence of a sulfur sensitizer.
Claim 8
Dependent Claim 30 words
A photographic light-sensitive material according to claim 1, said tabular grains having been chemically sensitized in the presence of a gold sensitizer or a combination of sulfur and gold sensitizers.
Claim 9
Dependent Claim 30 words
A photographic light-sensitive material according to claim 1, said tabular grains having been chemically sensitized using at least 5×10 -6 mol of a gold sensitizer per mol of silver halide.
Claim 10
Dependent Claim 24 words
A photographic light-sensitive material according to claim 7, said tabular grains having been chemically sensitized using at least 1.5×10 -5 mol of gold sensitizer.
Claim 11
Dependent Claim 38 words
A photographic light-sensitive material according to claim 7, said tabular grains having been chemically sensitized in the presence of a sulfur sensitizer and at least 250 mol % of gold sensitizer based on the amount of sulfur sensitizer.
Claim 12
Dependent Claim 23 words
A photographic light-sensitive material according to claim 1, said tabular grains having been spectrally sensitized by at least one blue spectral sensitizing dye.
Claim 13
Dependent Claim 22 words
A photographic light-sensitive material according to claim 1, wherein said tabular grains have an average aspect ratio ranging from 3 to 10.
Claim 14
Dependent Claim 21 words
A photographic light-sensitive material according to claim 12, wherein said tabular grains have an aspect ratio ranging from 5 to 7.
Claim 15
Dependent Claim 16 words
A photographic light-sensitive material according to claim 1, wherein said dye is a spectral sensitizing dye.
Claim 16
Dependent Claim 21 words
A photographic light-sensitive material according to claim 1, wherein said tabular grains contain at least 75 mol % of silver chloride.
Claim 17
Dependent Claim 21 words
A photographic light-sensitive material according to claim 15, wherein said tabular grains contain at least 90 mol % of silver chloride.
Claim 18
Dependent Claim 769 words
A material according to claim 1, said tabular grains having been spectrally sensitized by at least one of sensitizing dye selected from those represented by formulae (IIIa), (IIIb). and (IIIc): ##STR259## wherein Z 11 is selected from the group of oxygen, sulfur, and selenium; Z 12 is selected from the group of sulfur and selenium; R 11 and R 12 , which may be same or different, are selected from the group of an alkyl having up to and including six carbon atoms and an alkenyl having up to and including six carbon atoms; V 11 and V 14 , which may be same or different, are selected from the group of hydrogen, an alkyl having up to and including four carbon atoms and an alkoxy having up to and including four carbon atoms; V 12 and V 15 , which may be the same or different, are selected from the group of, an aklyl having up to and including five carbon atoms, an alkoxy having up to and including four carbon atoms, chlorine, hydrogen, substituted or unsubstituted phenyl, and hydroxyl; V 13 and V 16 are hydrogen, and any of V 11 and V 12 , V 12 and V 13 , V 14 and V 15 , and V 15 and V 16 can be coupled to form a condensed benzene ring; X - 11 is an anion residue of acid; and m 11 is 0 or 1; ##STR260## wherein Z 21 and Z 22 , which may be the same or different, are selected from the group of oxygen, sulfur, selenium, and >N-R 26 ; R 21 , R 22 , R 26 and R 27 , which may be the same or different, are selected from the group of an alkyl having up to and including six carbon atoms, and an alkenyl having up to and including six carbon atoms; R 23 is selected from the group of hydrogen, a lower alkyl, a lower phenethyl, or a combination thereof to form a 5- or 6-membered ring; R 24 and R 25 are hydrogen, and any of R 21 and R 24 , and R 22 and R 25 may be coupled to form a 5- or 6-membered carbon ring; V 21 and V 24 , which may be the same or different, are selected from the group of hydrogen, an alkyl having up to and including five carbon atoms, an alkoxy having up to and including five carbon atoms, and chlorine; V 22 and V 25 , which may be the same or different, are selected from the group of hydrogen, an alkyl having up to and including five carbon atoms, an alkoxy having up to and including five carbon atoms, chlorine, a substituted or unsubstituted phenyl, an alkoxycarbonyl having up to and including five carbon atoms, an acylamino having up to and including four carbon atoms, a trifluoromethyl, a cyano, and an alkylsulfonyl having up to and including four carbon atoms; V 23 and V 26 are hydrogen, and V 22 can be coupled to V 21 or V 23 to form a condensed benzene ring, and V 25 can be coupled to V 24 to V 26 to form a condensed benzene ring; X - 21 is an anion residue of acid; m 21 is 0 or 1; and n 21 is 1, 2, or 3; ##STR261## wherein Z 31 is an atom group required for forming substituted or unsubstituted nuclei of a member selected from the group of thiazoline, thiazole, benzothiazole, naphtholthiazole, selenazoline, selenazole, benzoselenazole, naphthoselenazole, benzmidazole, naphthoimidazole, oxazole, benzoxazole, naphthooxazole, and pyridine; R 31 is selected from the group of an alkyl having up to and including six carbon atoms and an alkenyl having up to and including six carbon atoms; R 32 is selected from the group of an alkyl having up to and including six carbon atoms, an alkenyl having up to and including six carbon atoms, hydrogen, a furfuryl, and a monocyclic aryl; R 33 is selected from the group of an alkyl having up to and including five carbon atoms, a phenethyl, a phenyl, a 2-carboxyphenyl, and coupled combinations thereof to form a 5- or 6-membered ring; Q 31 is selected from the group of oxygen, sulfur, selenium, and >N-R 34 wherein R 34 is selected from the group of hydrogen, pyridl, phenyl, substituted phenyl, and an aliphatic hydrocarbon group having up to and including eight carbon atoms and which may contain at least one of oxygen, sulfur, or nitrogen in a carbon chain; k is 0 or 1; and n 31 is 0, 1, or 3.
Claim 19
Dependent Claim 54 words
A photographic light-sensitive material according to claim 1, containing at least one compound having a mercapto group represented by formula (IV): ##STR262## wherein, M 1 represents hydrogen, a cation, or a protective group for mercapto, which is cleaved by alkali; and Z represents an atom group for forming a 5- or 6-membered heterocyclic ring.
Claim 20
Dependent Claim 30 words
A photographic light-sensitive material according to claim 1, wherein said photographic light-sensitive material contains at least one yellow coupler, at least one magenta coupler, and at least one cyan coupler.
Claim 21
Dependent Claim 46 words
A photographic light-sensitive material according to claim 1, comprising at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and at least one red-sensitive silver halide emulsion layer containing a cyan coupler.
Claim 22
Independent Claim 140 words
A method of developing a photographic light-sensitive material comprising color-developing the photographic light-sensitive material in the presence of a color coupler, said photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected surface area of silver halide grains contained in said silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol % of silver chloride, said tabular grains having been precipitated in the presence of a crystal habit controlling amount of a spectral sensitizing dye before and during nucleation and during precipitation of the silver halide grains, and having an aspect ratio of at least 2 and further wherein nucleation of said silver halide grains has been carried out under a chloride concentration of at least about 0.15 mol/liter.
Claim 23
Independent Claim 140 words
A method of developing a photographic light-sensitive material comprising color-developing the photographic light-sensitive material in the presence of a color coupler, said photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected surface area of silver halide grains contained in said silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol % of silver chloride, said tabular grains having been precipitated in the presence of a crystal habit controlling amount of a spectral sensitizing dye before and during nucleation and during precipitation of the silver halide grains, and having an aspect ratio of at least 2 and further wherein nucleation of said silver halide grains has been carried out under a chloride concentration of at least about 0.15 mol/liter.
Claim 24
Dependent Claim 17 words
A method according to claim 21, wherein color development is performed using a p-phenylenediamine color developing agent.
Claim 25
Dependent Claim 20 words
A method according to claim 21, wherein color development is performed using a color developer substantially free of iodide ions.
Claim 26
Dependent Claim 20 words
A method according to claim 21, wherein color development is performed using a color developer substantially free of sulfite ions.
Claim 27
Dependent Claim 30 words
A method according to claim 21, wherein color development is continuously performed using a color developer in which a concentration of bromide ion is not more than 1.0×10 -2 mol/l.
Claim 28
Dependent Claim 13 words
A method according to claim 21, wherein bleach-fixing is performed after color development.
Claim 29
Dependent Claim 18 words
A method according to claim 21, wherein processing, from color development to drying, is completed within 120 seconds.
Claim 30
Dependent Claim 95 words
A photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected area of silver halide grains contained in said silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol % of silver chloride, said tabular grains having been prepared in the presence of a crystal habit controlling amount of a spectral sensitizing dye before and during nucleation and during precipitation of the silver halide grains, and having an aspect ratio of at least 2.
Claim 31
Dependent Claim 95 words
A photographic light-sensitive material comprising, on a support, at least one silver halide emulsion layer containing silver halide grains, wherein at least 50% of the total projected area of silver halide grains contained in said silver halide emulsion layer is occupied by tabular grains comprising at least about 50 mol % of silver chloride, said tabular grains having been prepared in the presence of a crystal habit controlling amount of a spectral sensitizing dye before and during nucleation and during precipitation of the silver halide grains, and having an aspect ratio of at least 2.
Claim 32
Dependent Claim 28 words
A photographic light-sensitive material according to claim 28, said nucleation of silver halide grains having been carried out at a chloride concentration of about 0.05 mol/l or more.

References Cited (Backward Citations)

US4476220A Cited
US4783398A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-27 1994-02-26 1994-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-27 1998-02-26 1998-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-27 2002-02-26 2002-08-28 $7700.00 Window Closed / Lapsed

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