GB253380A - Improvements relating to the production of photographs on paper parchment and the like - Google Patents
Improvements relating to the production of photographs on paper parchment and the likeInfo
- Publication number
- GB253380A GB253380A GB1889125A GB1889125A GB253380A GB 253380 A GB253380 A GB 253380A GB 1889125 A GB1889125 A GB 1889125A GB 1889125 A GB1889125 A GB 1889125A GB 253380 A GB253380 A GB 253380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- silver salt
- paper
- dishes
- developer
- 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
- 239000002253 acid Substances 0.000 abstract 4
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 abstract 3
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 abstract 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 abstract 2
- ALLSOOQIDPLIER-UHFFFAOYSA-N 2,3,4-trichlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C(Cl)=C1Cl ALLSOOQIDPLIER-UHFFFAOYSA-N 0.000 abstract 1
- QAOJBHRZQQDFHA-UHFFFAOYSA-N 2,3-dichlorobenzoic acid Chemical compound OC(=O)C1=CC=CC(Cl)=C1Cl QAOJBHRZQQDFHA-UHFFFAOYSA-N 0.000 abstract 1
- VPMMJSPGZSFEAH-UHFFFAOYSA-N 2,4-diaminophenol;hydrochloride Chemical compound [Cl-].NC1=CC=C(O)C([NH3+])=C1 VPMMJSPGZSFEAH-UHFFFAOYSA-N 0.000 abstract 1
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- 108010010803 Gelatin Proteins 0.000 abstract 1
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 abstract 1
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Inorganic materials [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 abstract 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 239000008273 gelatin Substances 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 235000011852 gelatine desserts Nutrition 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 abstract 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 abstract 1
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 230000001235 sensitizing effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- SDLBJIZEEMKQKY-UHFFFAOYSA-M silver chlorate Chemical compound [Ag+].[O-]Cl(=O)=O SDLBJIZEEMKQKY-UHFFFAOYSA-M 0.000 abstract 1
- 239000000126 substance Substances 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
- G03C1/00—Photosensitive materials
- G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
- G03C1/496—Binder-free compositions, e.g. evaporated
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
253,380. Jelley, E. E. July 24, 1925. Sensitized films and papers; developing and fixing. -For sensitizing paper, parchment &c. without any gelatin or other colloidal substance a soluble silver salt, the silver of which is chemically combined with one or more of the three higher halogens, is used in conjunction with a water soluble, non-volatile, crystallisable, weak acid. Silver chlorate, perchlorate, bromate, dichlorobenzoate and other salts are instanced, and for the acid citric, tartaric and 2.3.6 trichlorobenzoic acid. The acid solution may be applied to the surface separately, and an alcoholic solution used. Development is effected by organic reducing agents such as metol, pyro, hydroquinone, but amidol is not suitable. If the coating does not contain sufficient silver salt to give the necessary image density (e.g. less than .0005 grms per sq. cm.) the exposure is shortened, and a soluble silver salt (e.g. nitrate, chlorate, but not permanganate or nitrite which destroy the developer), is added to the developer, the hydrogen-ion concentration of which should be between .0001 and .01. A fixing bath of hypo and bicarbonate is specified, but an acid fixing bath may be used. Various tones may be obtained by varying the exposure and the treatment. Detailed particulars of methods of preparing the paper and using it are given. Clean developing dishes are essential, and dishes of vulcanite porcelain or papier machÚ should be coated with paraffin wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1889125A GB253380A (en) | 1925-07-24 | 1925-07-24 | Improvements relating to the production of photographs on paper parchment and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1889125A GB253380A (en) | 1925-07-24 | 1925-07-24 | Improvements relating to the production of photographs on paper parchment and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB253380A true GB253380A (en) | 1926-06-17 |
Family
ID=10120193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1889125A Expired GB253380A (en) | 1925-07-24 | 1925-07-24 | Improvements relating to the production of photographs on paper parchment and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB253380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2265020A (en) * | 1992-03-13 | 1993-09-15 | Ilford Ag | Silver halide emulsions with increased speed |
-
1925
- 1925-07-24 GB GB1889125A patent/GB253380A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2265020A (en) * | 1992-03-13 | 1993-09-15 | Ilford Ag | Silver halide emulsions with increased speed |
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