GB212225A - Improvements in and relating to the manufacture and treatment of photographic films - Google Patents

Improvements in and relating to the manufacture and treatment of photographic films

Info

Publication number
GB212225A
GB212225A GB240/24A GB24024A GB212225A GB 212225 A GB212225 A GB 212225A GB 240/24 A GB240/24 A GB 240/24A GB 24024 A GB24024 A GB 24024A GB 212225 A GB212225 A GB 212225A
Authority
GB
United Kingdom
Prior art keywords
varnish
films
film
cellulose
relating
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
Application number
GB240/24A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goerz Photochemische Werke G M
Original Assignee
Goerz Photochemische Werke G M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goerz Photochemische Werke G M filed Critical Goerz Photochemische Werke G M
Publication of GB212225A publication Critical patent/GB212225A/en
Expired legal-status Critical Current

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

Abstract

212,225. Goerz Photochemische Werke Ges. March 3, 1923, [Convention date]. Films; colouring and finishing.-Photographic and kinematographic films are dulled by applying a fine spray of varnish so as to produce a stippled effect. Positive or negative film or the crude stock may be treated on one or both sides. The varnish or lacquer may consist of a cellulose solution to which a soluble metal salt, such as calcium may be added. In one form, a one per cent solution of nitro-cellulose in half-and-half ether-alcohol is sprayed on the film through a fine nozzle. The film may be coloured simultaneously by adding a suitable pigment to the varnish. The process is applicable for the removal of scratching on kinematograph films, and for covering up any coarseness of grain of negatives due to the quality of emulsion used.
GB240/24A 1923-03-03 1924-01-03 Improvements in and relating to the manufacture and treatment of photographic films Expired GB212225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212225X 1923-03-03

Publications (1)

Publication Number Publication Date
GB212225A true GB212225A (en) 1925-02-12

Family

ID=5806953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB240/24A Expired GB212225A (en) 1923-03-03 1924-01-03 Improvements in and relating to the manufacture and treatment of photographic films

Country Status (1)

Country Link
GB (1) GB212225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079837A (en) * 1959-03-18 1963-03-05 Agfa Ag Protective coatings for photographic films

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079837A (en) * 1959-03-18 1963-03-05 Agfa Ag Protective coatings for photographic films

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