GB632640A - Improvements in and relating to coloured layers for photographic material - Google Patents
Improvements in and relating to coloured layers for photographic materialInfo
- Publication number
- GB632640A GB632640A GB3395245A GB3395245A GB632640A GB 632640 A GB632640 A GB 632640A GB 3395245 A GB3395245 A GB 3395245A GB 3395245 A GB3395245 A GB 3395245A GB 632640 A GB632640 A GB 632640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substituted
- glutacondialdehyde
- ortho
- relating
- photographic material
- 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
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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
- G03C1/83—Organic dyestuffs therefor
- G03C1/832—Methine or polymethine dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
Dye salts of formula <FORM:0632640/IV (c)/1> wherein R1, R2, R3, R4=H (R2, R3, R4 not being hydrogen at the same time), alkyl, aryl (substituted or not), aralkyl (substituted or not), R1+R2, R3+R4 may form a heterocyclic nucleus; L=a substituted or unsubstituted methine group; n=2 or 3; X=an inorganic or organic acid residue, are used as coloured photographic layers. They are rapidly and irreversibly decolourised in photographic developing baths. They are made by the action of 2 mols. of a primary or secondary amine on 1 mol. of a product furnishing the carbon atoms of the polymethine chain such as an ortho-formate, an ortho-acetate, beta-oxyacrolein-diacetal, N-dinitro-phenyl pyridinium chloride, glutacondialdehyde, chloro-glutacondialdehyde, furfurol or furfur-acrolein, and treating with an acid either subsequently or simultaneously. Ten examples (see Group XX) describe the process.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE469548D BE469548A (en) | 1945-12-14 | ||
| GB3395245A GB632640A (en) | 1945-12-14 | 1945-12-14 | Improvements in and relating to coloured layers for photographic material |
| FR936371D FR936371A (en) | 1945-12-14 | 1946-11-29 | Process for the production of colored photographic layers |
| DEG394A DE817398C (en) | 1945-12-14 | 1949-11-15 | Process for the preparation of colored photographic layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3395245A GB632640A (en) | 1945-12-14 | 1945-12-14 | Improvements in and relating to coloured layers for photographic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB632640A true GB632640A (en) | 1949-11-28 |
Family
ID=10359505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3395245A Expired GB632640A (en) | 1945-12-14 | 1945-12-14 | Improvements in and relating to coloured layers for photographic material |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE469548A (en) |
| DE (1) | DE817398C (en) |
| FR (1) | FR936371A (en) |
| GB (1) | GB632640A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1015683B (en) * | 1955-06-15 | 1957-09-12 | Agfa Ag | Process for improving color rendering in multilayer color photographic materials |
| GB8307023D0 (en) * | 1983-03-15 | 1983-04-20 | Minnesota Mining & Mfg | Dye bleach system |
| JP4502791B2 (en) * | 2004-12-06 | 2010-07-14 | 株式会社Ａｄｅｋａ | Optical filter |
| US20070072242A1 (en) * | 2005-09-22 | 2007-03-29 | Randox Laboratories Limited | Immunoassay method and kit to leucomalachite green and malachite green |
| WO2017145627A1 (en) * | 2016-02-25 | 2017-08-31 | Dic株式会社 | Compound and color filter |
-
0
- BE BE469548D patent/BE469548A/xx unknown
-
1945
- 1945-12-14 GB GB3395245A patent/GB632640A/en not_active Expired
-
1946
- 1946-11-29 FR FR936371D patent/FR936371A/en not_active Expired
-
1949
- 1949-11-15 DE DEG394A patent/DE817398C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR936371A (en) | 1948-07-19 |
| DE817398C (en) | 1951-10-18 |
| BE469548A (en) |
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