# US 5,348,850 A · Silver halide photographic material and method of processing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,348,850 A - Document ID: US5348850A - Status: Granted - Kind: A - Application number: 08/112,342 - Filed: 1993-08-27 - Granted: 1994-09-20 - Earliest claimed: 1992-08-27 - Assignees: Fuji Photo Film Co., Ltd. - Inventors: Tetsuo Yoshida - Web page: https://patentgrep.com/patent/US5348850A ## CPC - G03C 1/09: Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising (G03C1/34, G03C1/35 take precedence) - G03C 1/26: Polymethine chain forming part of a heterocyclic ring - G03C 1/035: characterised by the crystal form or composition, e.g. mixed grain - G03C 2001/03517: {Chloride content} - G03C 2001/091: {Gold} - G03C 2001/096: {Sulphur sensitiser} - G03C 2001/097: {Selenium} - G03C 2001/098: {Tellurium} - Y10S 430/164: Rapid access processing - G03C: PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A silver halide photographic material has on a support at least one light-sensitive silver halide emulsion layer which comprises silver halide emulsion grains having a chloride content: of at least 50 mol % and containing a metal selected from rhodium, ruthenium and rhenium in an amount of at least 10.sup.-8 mole per mole of silver, said silver halide emulsion being spectrally sensitized with a compound of general formula (I) and being chemically sensitized with a selenium or tellurium compound: ##STR1## wherein Z and Z.sub.1 each represents a group of nonmetallic atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic nucleus; R and R.sub.1 each represents an unsubstituted or substituted alkyl group, or an unsubstituted aryl group; Q and Q.sub.1 each represents a group of atoms necessary to complete a 4-thiazolidinone, 5-thiazolidinone or 4-imidazolidinone nucleus; L, L.sub.1 and L.sub.2 each represents an unsubstituted or substituted methine group; n.sub.1 and n.sub.2 each represents 0 or 1; X represents an anion; and m represents 0 or 1, wherein m=0 indicates that the dye forms an inner salt. The photographic material provides high sensitivity to He--Ne laser light and ensures high contrast in the photographic images. ## Claims ### Claim 1 A silver halide photographic material which has on a support at least one layer of a light-sensitive silver halide emulsion comprising silver halide grains having a chloride content of at least 50 mole % and containing a metal selected from rhodium, ruthenium and rhenium in an amount of at least 10.sup.-8 mole per mole of silver, said silver halide emulsion being spectrally sensitized with a compound having a structure represented by the following general formula (I) and being chemically sensitized with a selenium or tellurium compound: ##STR17## wherein Z and Z.sub.1 each represents a group of nonmetallic atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic nucleus; R and R.sub.1 each represents an unsubstituted or substituted alkyl group, or an unsubstituted aryl group; Q and Q.sub.1 each represents a group of atoms necessary to complete a 4-thiazolidinone, 5-thiazolidinone or 4-imidazolidinone nucleus; L, L.sub.1 and L.sub.2 each represents an unsubstituted or substituted methine group; n.sub.1 and n.sub.2 each represents 0 or 1; X represents an anion; and m represents 0 or 1, wherein m=0 indicates that the dye forms an inner salt. ### Claim 2 (depends on 1) The silver halide photographic material of claim 1, wherein the silver halide grains in the silver halide emulsion have a chloride content of at least 70 mole %. ### Claim 3 (depends on 1) The silver halide photographic material of claim 1, wherein the silver halide grains in the silver halide emulsion are fine grains having an average grain size no greater than 0.7 microns. ### Claim 4 (depends on 1) The silver halide photographic material of claim 1, wherein the silver halide grains in the silver halide emulsion are fine grains having an average grain size no greater than 0.5 microns. ### Claim 5 (depends on 1) The silver halide photographic material of claim 1, wherein the silver halide grains in the silver halide emulsion are cubic, tetradecahedral, or tabular grains. ### Claim 6 (depends on 1) The silver halide photographic material of claim 1, wherein the silver halide emulsion is a monodisperse emulsion. ### Claim 7 (depends on 1) The silver halide photographic material of claim 1, wherein the metal selected from rhodium, ruthenium and rhenium is incorporated in the silver halide grains in the form of a water soluble complex salt of the metal. ### Claim 8 (depends on 7) The silver halide photographic material of claim 7, wherein the total amount of the water soluble complex salt of the metal is from 5.times.10.sup.-9 to 1.times.10.sup.-4 mol per mole of silver halide in the emulsion. ### Claim 9 (depends on 7) The silver halide photographic material of claim 7, wherein the total amount of the water soluble complex salt of the metal is from 1.times.10.sup.-8 to 1.times.10.sup.-6 mol per mole of silver halide in the emulsion. ### Claim 10 (depends on 7) The silver halide photographic material of claim 7, wherein the total amount of the water soluble complex salt of the metal is from 5.times.10.sup.-8 to 1.times.10.sup.-7 mol per mole of silver halide in the emulsion. ### Claim 11 (depends on 1) The silver halide photographic material of claim 1, wherein the amount of the selenium or tellurium compound is from 10.sup.-8 to 10.sup.-2 mole per mole of silver halide in the emulsion. ### Claim 12 (depends on 1) The silver halide photographic material of claim 1, wherein the amount of the selenium or tellurium compound is from 10.sup.-7 to 10.sup.-3 mole per mole of silver halide in the emulsion. ### Claim 13 (depends on 1) The silver halide photographic material of claim 1, wherein the silver halide emulsion is further sensitized with a precious metal sensitizer. ### Claim 14 (depends on 13) The silver halide photographic material of claim 13, wherein the silver halide emulsion is further sensitized with a sulfur sensitizer. ### Claim 15 A method of processing a silver halide photographic material which comprises image-wise exposing said photographic material and processing said photographic material with an automatic developing machine wherein the replenishment rates of a developer and a fixer are each controlled to at most 200 ml/m.sup.2, wherein said photographic material comprises on a support at least one layer of a light-sensitive silver halide emulsion comprising silver halide grains having a chloride content of at least 50 mole % and containing a metal selected from rhodium, ruthenium and rhenium in an amount of at least 10.sup.-8 mole per mole of silver, said silver halide emulsion being spectrally sensitized with a compound having a structure represented by the following general formula (I) and being chemically sensitized with a selenium or tellurium compound: ##STR18## wherein Z and Z.sub.1 each represents a group of nonmetallic atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic nucleus; R and R.sub.1 each represents an unsubstituted or substituted alkyl group, or an unsubstituted aryl group; Q and Q.sub.1 each represents a group of atoms necessary to complete a 4-thiazolidinone, 5-thiazolidinone or 4-imidazolidinone nucleus; L, L.sub.1 and L.sub.2 each represents an unsubstituted or substituted methine group; n.sub.1 and n.sub.2 each represents 0 or 1; X represents and anion, m represents 0 or 1, wherein m=0 indicates that the dye forms an inner salt. ### Claim 16 A method of processing a silver halide photographic material which comprises image-wise exposing said photographic material and processing said photographic material with an automatic developing machine wherein the total processing time is adjusted so as to be within the range of 15 to 60 seconds, wherein said photographic material comprises on a support at least one layer of a light-sensitive silver halide emulsion comprising silver halide grains having a chloride content of at least 50 mole % and containing a metal selected from rhodium, ruthenium and rhenium in an amount of at least 10.sup.-8 mole per mole of silver, said silver halide emulsion being spectrally sensitized with a compound having a structure represented by the following general formula (I) and being chemically sensitized with a selenium or tellurium compound: ##STR19## wherein Z and Z.sub.1 each represents a group of nonmetallic atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic nucleus; R and R.sub.1 each represents an unsubstituted or substituted alkyl group, or an unsubstituted aryl group; Q and Q.sub.1 each represents a group of atoms necessary to complete a 4-thiazolidinone, 5-thiazolidinone or 4-imidazolidinone nucleus; L, L.sub.1 and L.sub.2 each represents an unsubstituted or substituted methine group; n.sub.1 and n2 each represents 0 or 1; X represents an anion; m represents 0 or 1, wherein m=0 indicates that the dye forms an inner salt.