GB420824A - Improvements in or relating to colour photography - Google Patents
Improvements in or relating to colour photographyInfo
- Publication number
- GB420824A GB420824A GB1630033A GB1630033A GB420824A GB 420824 A GB420824 A GB 420824A GB 1630033 A GB1630033 A GB 1630033A GB 1630033 A GB1630033 A GB 1630033A GB 420824 A GB420824 A GB 420824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- parts
- class
- ink
- bleached
- 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
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 230000001476 alcoholic effect Effects 0.000 abstract 2
- 230000001788 irregular Effects 0.000 abstract 2
- FDZZZRQASAIRJF-UHFFFAOYSA-M malachite green Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 FDZZZRQASAIRJF-UHFFFAOYSA-M 0.000 abstract 2
- 229940107698 malachite green Drugs 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- JPIYZTWMUGTEHX-UHFFFAOYSA-N auramine O free base Chemical compound C1=CC(N(C)C)=CC=C1C(=N)C1=CC=C(N(C)C)C=C1 JPIYZTWMUGTEHX-UHFFFAOYSA-N 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000004043 dyeing Methods 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000011118 potassium hydroxide Nutrition 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
- 239000002966 varnish Substances 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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/04—Additive processes using colour screens; Materials therefor; Preparing or processing such materials
- G03C7/06—Manufacture of colour screens
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Methods (AREA)
Abstract
420,824. Colour photography. BAKER, T. T., The Hut, Hatch End, Middlesex, and DUFAYCOLOR, Ltd., 19, New Bridge Street, London. June 6, 1933, No. 16300. [Class 98 (ii)] A multicolour screen for use in colour photography and kinematography is prepared by applying one colour to the surface of a film or base, printing a pattern of inky resist thereon from a printing surface, e.g. a roller, having mercurial ink-repelling areas, bleaching the colour from the parts unprotected by the resist, dyeing the bleached parts a second colour and removing the resists. The process may be repeated for producing a three-colour screen. In carrying out the process, a cellulose acetate film, prepared for example as described in Specifications 243,032, [Class 70], 281,803, 287,635,.or 301,439, [all in Class 2 (ii)], is coated with a layer of collodion, e.g. in a machine of the type described in Specification 321,222, [Class 140], dyed green with an alcoholic solution of malachite green and auramine. An irregular pattern in greasy ink is then printed thereon from a steel roller having inking areas 1 of chromium and inkrepelling areas 2 of mercury, and the dye is bleached from the unprotected parts with a mixture of alcohol, caustic potash, and acetone. The bleached parts are then dyed red with basic red N extra and the ink removed with benzene. A second ink resist falling indiscriminately on the red and green areas is then printed on the film, from which the colour is bleached in the unprotected parts as before, and the bleached parts dyed with an alcoholic solution of crystal violet and malachite green. The ink is removed with benzene and the film is dried, coated with a substratum e.g. of synthetic resin varnish and a layer of emulsion applied to it. The resist pattern may be irregular or regular and in the latter case the resist patterns are formed by sets of parallel lines and printed at right angles to one another. Specification 322,432, [Class 98 (ii)], also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1630033A GB420824A (en) | 1933-06-06 | 1933-06-06 | Improvements in or relating to colour photography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1630033A GB420824A (en) | 1933-06-06 | 1933-06-06 | Improvements in or relating to colour photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB420824A true GB420824A (en) | 1934-12-06 |
Family
ID=10074823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1630033A Expired GB420824A (en) | 1933-06-06 | 1933-06-06 | Improvements in or relating to colour photography |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB420824A (en) |
-
1933
- 1933-06-06 GB GB1630033A patent/GB420824A/en not_active Expired
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