A METHOD FOR FIXING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER MATERIAL
A method for fixing a photographic silver halide emulsion layer material which method comprises the steps : (A) developing an image-wise exposed silver halide emulsion layer by means of (a) developing agent(s) using an aqueous alkaline liquid, (B) bringing the developed photographic material whi...
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| creator | DE RYCKE, GINO LUC |
| description | A method for fixing a photographic silver halide emulsion layer material which method comprises the steps :
(A) developing an image-wise exposed silver halide emulsion layer by means of (a) developing agent(s) using an aqueous alkaline liquid,
(B) bringing the developed photographic material while being still wet with the liquid used in step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, that contains in an organic hydrophilic colloid binder a silver halide complexing agent and in dispersed form a metal sulphide as silver ion scavenging agent,
(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and
(D) separating the photographic material from the receptor element, and
wherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 mu m, and contains said metal sulphide at a sulphide ion coverage per m2 at least stoichiometrically equivalent with the silver ion coverage per m2 in the photographic material in unexposed and undeveloped state, the molar coverage per m2 of said complexing agent being not lower than a 20th of the molar coverage per m2 of silver halide in the photographic material to be processed. |
| format | Patent |
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(A) developing an image-wise exposed silver halide emulsion layer by means of (a) developing agent(s) using an aqueous alkaline liquid,
(B) bringing the developed photographic material while being still wet with the liquid used in step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, that contains in an organic hydrophilic colloid binder a silver halide complexing agent and in dispersed form a metal sulphide as silver ion scavenging agent,
(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and
(D) separating the photographic material from the receptor element, and
wherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 mu m, and contains said metal sulphide at a sulphide ion coverage per m2 at least stoichiometrically equivalent with the silver ion coverage per m2 in the photographic material in unexposed and undeveloped state, the molar coverage per m2 of said complexing agent being not lower than a 20th of the molar coverage per m2 of silver halide in the photographic material to be processed.</description><language>eng</language><subject>AUXILIARY PROCESSES IN PHOTOGRAPHY ; CINEMATOGRAPHY ; ELECTROGRAPHY ; HOLOGRAPHY ; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES ; PHOTOGRAPHY ; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES ; PHYSICS</subject><creationdate>1991</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910814&DB=EPODOC&CC=EP&NR=0221599B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910814&DB=EPODOC&CC=EP&NR=0221599B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DE RYCKE, GINO LUC</creatorcontrib><title>A METHOD FOR FIXING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER MATERIAL</title><description>A method for fixing a photographic silver halide emulsion layer material which method comprises the steps :
(A) developing an image-wise exposed silver halide emulsion layer by means of (a) developing agent(s) using an aqueous alkaline liquid,
(B) bringing the developed photographic material while being still wet with the liquid used in step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, that contains in an organic hydrophilic colloid binder a silver halide complexing agent and in dispersed form a metal sulphide as silver ion scavenging agent,
(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and
(D) separating the photographic material from the receptor element, and
wherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 mu m, and contains said metal sulphide at a sulphide ion coverage per m2 at least stoichiometrically equivalent with the silver ion coverage per m2 in the photographic material in unexposed and undeveloped state, the molar coverage per m2 of said complexing agent being not lower than a 20th of the molar coverage per m2 of silver halide in the photographic material to be processed.</description><subject>AUXILIARY PROCESSES IN PHOTOGRAPHY</subject><subject>CINEMATOGRAPHY</subject><subject>ELECTROGRAPHY</subject><subject>HOLOGRAPHY</subject><subject>PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES</subject><subject>PHOTOGRAPHY</subject><subject>PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPBwVPB1DfHwd1Fw8w9ScPOM8PRzV3BUCPDwD_F3D3IM8PB0Vgj29AlzDVLwcPTxdHFVcPUN9Qn29PdT8HGMBIr6Ooa4Bnk6-vAwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXAAMjI0NTS0snQ2MilAAAimgsPA</recordid><startdate>19910814</startdate><enddate>19910814</enddate><creator>DE RYCKE, GINO LUC</creator><scope>EVB</scope></search><sort><creationdate>19910814</creationdate><title>A METHOD FOR FIXING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER MATERIAL</title><author>DE RYCKE, GINO LUC</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0221599B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1991</creationdate><topic>AUXILIARY PROCESSES IN PHOTOGRAPHY</topic><topic>CINEMATOGRAPHY</topic><topic>ELECTROGRAPHY</topic><topic>HOLOGRAPHY</topic><topic>PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES</topic><topic>PHOTOGRAPHY</topic><topic>PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>DE RYCKE, GINO LUC</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DE RYCKE, GINO LUC</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A METHOD FOR FIXING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER MATERIAL</title><date>1991-08-14</date><risdate>1991</risdate><abstract>A method for fixing a photographic silver halide emulsion layer material which method comprises the steps :
(A) developing an image-wise exposed silver halide emulsion layer by means of (a) developing agent(s) using an aqueous alkaline liquid,
(B) bringing the developed photographic material while being still wet with the liquid used in step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, that contains in an organic hydrophilic colloid binder a silver halide complexing agent and in dispersed form a metal sulphide as silver ion scavenging agent,
(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and
(D) separating the photographic material from the receptor element, and
wherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 mu m, and contains said metal sulphide at a sulphide ion coverage per m2 at least stoichiometrically equivalent with the silver ion coverage per m2 in the photographic material in unexposed and undeveloped state, the molar coverage per m2 of said complexing agent being not lower than a 20th of the molar coverage per m2 of silver halide in the photographic material to be processed.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS |
| title | A METHOD FOR FIXING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER MATERIAL |
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