GB372720A - An improved method for the production of coloured photographic images - Google Patents
An improved method for the production of coloured photographic imagesInfo
- Publication number
- GB372720A GB372720A GB4980/32A GB498032A GB372720A GB 372720 A GB372720 A GB 372720A GB 4980/32 A GB4980/32 A GB 4980/32A GB 498032 A GB498032 A GB 498032A GB 372720 A GB372720 A GB 372720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colouring
- relief
- colloid
- dyes
- parts
- 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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/46—Subtractive processes not covered by the group G03C7/26; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
372,720. Coloured photographs. PROJECTOR AKT.-GES., 17, Lowenstrasse, Zurich, Switzerland. Feb. 14, 1931, No. 4980/32. Convention date, Feb. 14, 1930, Divided on 372,424. [Class 98 (ii).] A process of colouring a differentially hardened and swelled colloid relief image consists in first colouring the tops of the relief corresponding to the unexposed parts, with a colouring matter that will remain on the surface and not penetrate into the colloid (such as albumen azure dyes)., and then further colouring the image with a colour solution that will penetrate the unhardened parts (for example pinatype dyes), and/or containing mordant dyes which will colour the hardened parts. The relief may be reduced after the first colouring by exposing it to dry heat. Chemicals such as calcium chloride may be added to the bath used for producing the initial relief, in order to increase the absorption power of the unhardened colloid. Alcohols may be added to the moistening bath used to produce the relief in order to obtain a rapid surface drying.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE372720X | 1930-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB372720A true GB372720A (en) | 1932-05-12 |
Family
ID=6333810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4980/32A Expired GB372720A (en) | 1930-02-14 | 1931-02-14 | An improved method for the production of coloured photographic images |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR727412A (en) |
| GB (1) | GB372720A (en) |
-
1931
- 1931-02-12 FR FR727412D patent/FR727412A/en not_active Expired
- 1931-02-14 GB GB4980/32A patent/GB372720A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR727412A (en) | 1932-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB372720A (en) | An improved method for the production of coloured photographic images | |
| GB452745A (en) | Improvements in or relating to the production of prints by dusting-on processes | |
| GB1174563A (en) | Production of Anodised Surfaces of Aluminium or Aluminium Alloys | |
| GB379423A (en) | Improvements in the production of photographic multi-colour pictures | |
| US2276718A (en) | Method for producing half-tone reproductions | |
| US1385567A (en) | Imitation-copper-engraving process | |
| DE617713C (en) | Process for the production of color images | |
| DE490319C (en) | Process for the production of photographic images in colloid layers interspersed with light-sensitive organic dyes and sensitizers | |
| US2032363A (en) | Projection screen | |
| GB333392A (en) | Improvements in and relating to imbibition processes for producing pictures in colour | |
| GB1395329A (en) | Photographic process for the production of colloid relief patterns | |
| GB333668A (en) | Process of producing multi-colour photographs | |
| GB244644A (en) | Screens for colour photography | |
| SU35563A1 (en) | The method of applying color grids photomechanically on any substrate | |
| GB1338695A (en) | Methods of forming negative and positve azo dye images | |
| GB305775A (en) | Improvements in colour photography | |
| DE379998C (en) | Process for the production of light-sensitive, copyable layers | |
| GB568253A (en) | A method of producing photographic pictures on plates or panels formed of compressed wood fibres | |
| DE413886C (en) | Process for the production of collotype forms | |
| GB247467A (en) | Process of producing line drawings and the like from photographic exposures | |
| AT94526B (en) | Process for converting silver images into dye images. | |
| GB319077A (en) | A method of producing gelatin relief plates or films for the production of dye imbibition prints | |
| GB289411A (en) | A process for producing coloured pictures from photographic prints | |
| GB1344063A (en) | Manufacture of coloured colloid patterns | |
| GB440448A (en) | Improvements in processes of photographic reproduction |