US1719711A - Photographic silver-halid emulsion - Google Patents
Photographic silver-halid emulsion Download PDFInfo
- Publication number
- US1719711A US1719711A US127708A US12770826A US1719711A US 1719711 A US1719711 A US 1719711A US 127708 A US127708 A US 127708A US 12770826 A US12770826 A US 12770826A US 1719711 A US1719711 A US 1719711A
- Authority
- US
- United States
- Prior art keywords
- emulsion
- products
- photographic silver
- proteins
- 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 - Lifetime
Links
- 239000000839 emulsion Substances 0.000 title description 22
- 102000004169 proteins and genes Human genes 0.000 description 9
- 108090000623 proteins and genes Proteins 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 8
- 239000001828 Gelatine Substances 0.000 description 7
- 229920000159 gelatin Polymers 0.000 description 7
- 235000019322 gelatine Nutrition 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 238000000354 decomposition reaction Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HHBOUFYYHJJTNU-UHFFFAOYSA-N 1,3,6-thiadiazepane-2,7-dithione Chemical compound S=C1NCCNC(=S)S1 HHBOUFYYHJJTNU-UHFFFAOYSA-N 0.000 description 1
- 241001479434 Agfa Species 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- 102000011782 Keratins Human genes 0.000 description 1
- 108010076876 Keratins Proteins 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229960003067 cystine Drugs 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000003284 horn Anatomy 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 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
- G03C1/005—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
Definitions
- Thefproducts of decomposition may be prepared, e. g. from albumin, keratin, gelatine, -cystine., animal hide, tendons, cartilages, horn, bone or other raw materials for glue and gelatine.
- the decomposition may be carried on by hydrolysis
- the point at which the decomposition by hydrolysis and partial oxidation is to be stopped is determined by the refractive index curve of the solution and by testing at regular intervals the photographic qualities of the decomposition products.
- the solution shows a continuous increase in the refractive index which tends to reach a constant value when all protein present has been broken down.
- the photographic test is carried out by making a small batch of emulsion with addition of varying amounts of the product to be tested. From the sensitogram of the resulting emulsion the photographic qualities of the product are eas ly judged.
- the decomposing treatment 1s 1nterrupted when a photographic optlmum 1s reached. In the same way the quantitynecessary for any emulsion may be determined.
- gelatine or 100 g. of calf stock in alkaline solution and adding the neutralized solution during emulsion making or to the gelatine as described in Example 1.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Peptides Or Proteins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE258237X | 1925-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1719711A true US1719711A (en) | 1929-07-02 |
Family
ID=5966631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US127708A Expired - Lifetime US1719711A (en) | 1925-09-14 | 1926-08-06 | Photographic silver-halid emulsion |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1719711A (enrdf_load_stackoverflow) |
| BE (1) | BE336304A (enrdf_load_stackoverflow) |
| FR (1) | FR620935A (enrdf_load_stackoverflow) |
| GB (1) | GB258237A (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622036A (en) * | 1952-12-16 | Process for the treatment of | ||
| US2699391A (en) * | 1950-01-11 | 1955-01-11 | Gen Aniline & Film Corp | Synthetic polypeptides of alpha-amino acids as restrainers in photographic emulsions |
| US2710805A (en) * | 1952-10-09 | 1955-06-14 | Ilford Ltd | Production of silver halide photographic emulsions containing a synthetic polypeptide derivative |
| US2740713A (en) * | 1952-04-26 | 1956-04-03 | Warren Joel | Sensitization of photographic emulsions |
-
0
- BE BE336304D patent/BE336304A/xx unknown
-
1926
- 1926-08-06 US US127708A patent/US1719711A/en not_active Expired - Lifetime
- 1926-08-14 GB GB20115/26A patent/GB258237A/en not_active Expired
-
1927
- 1927-02-12 FR FR620935D patent/FR620935A/fr not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622036A (en) * | 1952-12-16 | Process for the treatment of | ||
| US2699391A (en) * | 1950-01-11 | 1955-01-11 | Gen Aniline & Film Corp | Synthetic polypeptides of alpha-amino acids as restrainers in photographic emulsions |
| US2740713A (en) * | 1952-04-26 | 1956-04-03 | Warren Joel | Sensitization of photographic emulsions |
| US2710805A (en) * | 1952-10-09 | 1955-06-14 | Ilford Ltd | Production of silver halide photographic emulsions containing a synthetic polypeptide derivative |
Also Published As
| Publication number | Publication date |
|---|---|
| FR620935A (enrdf_load_stackoverflow) | 1927-05-02 |
| GB258237A (en) | 1927-08-25 |
| BE336304A (enrdf_load_stackoverflow) |
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