GB1212783A - Photographic silver halide material - Google Patents
Photographic silver halide materialInfo
- Publication number
- GB1212783A GB1212783A GB27947/68A GB2794768A GB1212783A GB 1212783 A GB1212783 A GB 1212783A GB 27947/68 A GB27947/68 A GB 27947/68A GB 2794768 A GB2794768 A GB 2794768A GB 1212783 A GB1212783 A GB 1212783A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelatine
- silver halide
- layer
- mercaptan compound
- photographic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- -1 silver halide Chemical class 0.000 title abstract 16
- 239000000463 material Substances 0.000 title abstract 12
- 229910052709 silver Inorganic materials 0.000 title abstract 11
- 239000004332 silver Substances 0.000 title abstract 11
- 239000001828 Gelatine Substances 0.000 abstract 11
- 229920000159 gelatin Polymers 0.000 abstract 11
- 235000019322 gelatine Nutrition 0.000 abstract 11
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- 239000000839 emulsion Substances 0.000 abstract 4
- 238000005406 washing Methods 0.000 abstract 3
- 239000012670 alkaline solution Substances 0.000 abstract 2
- 238000004132 cross linking Methods 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 abstract 2
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 abstract 2
- QIJRTFXNRTXDIP-UHFFFAOYSA-N (1-carboxy-2-sulfanylethyl)azanium;chloride;hydrate Chemical compound O.Cl.SCC(N)C(O)=O QIJRTFXNRTXDIP-UHFFFAOYSA-N 0.000 abstract 1
- OGMADIBCHLQMIP-UHFFFAOYSA-N 2-aminoethanethiol;hydron;chloride Chemical compound Cl.NCCS OGMADIBCHLQMIP-UHFFFAOYSA-N 0.000 abstract 1
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 abstract 1
- NRFJZTXWLKPZAV-UHFFFAOYSA-N N-(2-oxo-3-thiolanyl)acetamide Chemical compound CC(=O)NC1CCSC1=O NRFJZTXWLKPZAV-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229960004753 citiolone Drugs 0.000 abstract 1
- 229960002433 cysteine Drugs 0.000 abstract 1
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 abstract 1
- 235000018417 cysteine Nutrition 0.000 abstract 1
- 229960001305 cysteine hydrochloride Drugs 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 125000003396 thiol group Chemical group [H]S* 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/50—Reversal development; Contact processes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
- G03C1/047—Proteins, e.g. gelatine derivatives; Hydrolysis or extraction products of proteins
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/30—Hardeners
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/40—Chemically transforming developed images
Abstract
1,212,783. 783. Photographic silver halide material. ILFORD Ltd. June 6, 1969 [June 12, 1968], No.27947/68. Heading G2C. [Also in Division C2] A photographic material comprises a support having coated on one side thereon, in order, a gelatine layer which is partially cross-linked by the presence therein of disulphide linkages and an unhardened gelatino silver halide emulsion layer. An inert pigment e.g. carbon black is preferably present in the partially cross-linked gelatine layer. The said photographic material may be prepared by coating a layer of thiolated gelatine on a support and subjecting the layer to aerial oxidation to affect cross-linking of thiol groups to form disulphide linkages, and thereafter coating a layer of a gelatino silver halide emulsion thereon, or by treating an aqueous gelatine solution with a gelatinecrosslinking agent of the formula R-S-S-R<SP>1</SP> where R and R<SP>1</SP> are each groups capable of reacting with gelatine so as to cross-link the gelatine and coating the mixture on a support thereby to affect partial cross-linking of the gelatine layer by the formation therein of disulphide linkages, and thereafter coating a layer of a gelatino silver halide emulsion thereon. When the photographic material of the present invention after exposure is treated with an aqueous alkaline solution of a mercaptan compound for a predetermined period of time a selective decross-linking reaction of the gelatine occurs and the gelatine may easily be removed by washing. Negative or direct positive photographic records may be obtained. If the exposed material is kept in the presence of the mercaptan compound either during or after development for a relatively short time a negative image is obtained; a longer period of time in a mercaptan compound which is also a silver halide solvent a direct positive image is obtained; but if the material is kept in the presence of a mercaptan compound for too long no image at all is obtained as all the gelatine becomes de-crosslinked and removed during the washing step. A negative image may also be obtained by developing the exposed material in a non-tanning silver halide developing solution, removing the undeveloped silver halide by fixing it out, bleaching the developed silver to silver halide, treating the material with an aqueous alkaline solution of a mercaptan compound and washing the material in water thereby to remove the silver halide emulsion from the material and the gelatine from the unexposed areas of the material. The mercaptan compound may be cysteine, cysteine hydrochloride, thiomalic acid (mercapto-succinic acid), N-acetyl-homocysteinethiolactone, 2 -mercaptoethylamine hydrochloride, 2-mercaptoethanol or 1-thioglycerol.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27947/68A GB1212783A (en) | 1968-06-12 | 1968-06-12 | Photographic silver halide material |
| BE734303D BE734303A (en) | 1968-06-12 | 1969-06-09 | |
| US832020A US3607281A (en) | 1968-06-12 | 1969-06-10 | Gelatin relief image |
| NL6908910A NL6908910A (en) | 1968-06-12 | 1969-06-11 | |
| FR6919315A FR2010743A1 (en) | 1968-06-12 | 1969-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27947/68A GB1212783A (en) | 1968-06-12 | 1968-06-12 | Photographic silver halide material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1212783A true GB1212783A (en) | 1970-11-18 |
Family
ID=10267841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27947/68A Expired GB1212783A (en) | 1968-06-12 | 1968-06-12 | Photographic silver halide material |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3607281A (en) |
| BE (1) | BE734303A (en) |
| FR (1) | FR2010743A1 (en) |
| GB (1) | GB1212783A (en) |
| NL (1) | NL6908910A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710447A (en) * | 1984-12-14 | 1987-12-01 | Castcraft Industries, Inc. | Color proofing and color proofing transfer process using water developed ink |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE545630A (en) * | 1955-03-02 | |||
| NL254306A (en) * | 1959-08-07 |
-
1968
- 1968-06-12 GB GB27947/68A patent/GB1212783A/en not_active Expired
-
1969
- 1969-06-09 BE BE734303D patent/BE734303A/xx unknown
- 1969-06-10 US US832020A patent/US3607281A/en not_active Expired - Lifetime
- 1969-06-11 NL NL6908910A patent/NL6908910A/xx unknown
- 1969-06-11 FR FR6919315A patent/FR2010743A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL6908910A (en) | 1969-12-16 |
| US3607281A (en) | 1971-09-21 |
| FR2010743A1 (en) | 1970-02-20 |
| BE734303A (en) | 1969-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 429A | Application made for amendment of specification (sect. 29/1949) | ||
| 429C | Application to amend the specification withdrawn (sect. 29/1949) | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |