GB486360A - Improvements in or relating to the treatment of cinematograph films - Google Patents
Improvements in or relating to the treatment of cinematograph filmsInfo
- Publication number
- GB486360A GB486360A GB16510/37A GB1651037A GB486360A GB 486360 A GB486360 A GB 486360A GB 16510/37 A GB16510/37 A GB 16510/37A GB 1651037 A GB1651037 A GB 1651037A GB 486360 A GB486360 A GB 486360A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- films
- applies
- dissolved
- applying
- 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
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D15/00—Apparatus for treating processed material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
486,360. Renovating kinematograph films. STOCK, F. J. J. June 14, 1937, No. 16610. Convention date, June 19, 1936. [Class 98 (ii)] The marginal perforated region of developed and fixed films, more especially those of non- inflammable or slowly-inflammable material, are treated separately to incorporate softening agents therein in a manner known per se. The films may be treated over their full width, in a manner known per se, prior to or after the marginal treatment, with softening agents which swell the film to restore it to its condition when raw. A solution of substances of greater strength when solid than the film material, and equivalent physically and chemically to the film material, may be applied to the film in its swollen state to form a protective layer homogeneously united with the film surface. As softening agents may be used camphor dissolved in acetone acetic ether for celluloid films ; and for acetate films, triphenylphosphate, phthalic acid ester or phosphoric acid ester, dissolved in acetone, acetic ether or methylene chloride. For applying the liquids, the film may be led successively over three rollers which dip into baths of the liquids, and are provided with reduced peripheral portions so that the first applies softening liquid to the perforated region, the second applies the same liquid to the remaining region or to the whole width, and the third applies the protective coating. A solution suitable for the combined swelling, coating, and impregnating of a celluloid film may consist of a nitrous cellulose ester of low viscosity such as pyroxylin, shellac, and camphor, dissolved in alcohol and acetic ether. The processes described in Specifications 230,154 and 243,752, [both in Class 98 (ii)], are referred to ; and also a process for applying to a film a polyglycol and then a quick-drying cellulose ester composition ; and a process for applying to a film a coating solution containing collodion, sulphuric ether, methylated spirit, and either formic acid, glacial acetic acid, or acetic ether.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE486360X | 1936-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB486360A true GB486360A (en) | 1938-06-02 |
Family
ID=6543435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16510/37A Expired GB486360A (en) | 1936-06-19 | 1937-06-14 | Improvements in or relating to the treatment of cinematograph films |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB486360A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012088553A1 (en) * | 2010-12-23 | 2012-07-05 | Österreichische Akademie der Wissenschaften | Method for reconditioning data carriers |
-
1937
- 1937-06-14 GB GB16510/37A patent/GB486360A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012088553A1 (en) * | 2010-12-23 | 2012-07-05 | Österreichische Akademie der Wissenschaften | Method for reconditioning data carriers |
EA022747B1 (en) * | 2010-12-23 | 2016-02-29 | Эстеррайхише Академи Дер Виссеншафтен | Method for reconditioning data carriers |
US9375883B2 (en) | 2010-12-23 | 2016-06-28 | Österreichische Akademie der Wissenschaften | Method for reconditioning data carriers |
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