GB1199586A - A Continuous Method of Stripping-off Coating Material of Photographic Films or Plates from the Base Materials Thereof - Google Patents

A Continuous Method of Stripping-off Coating Material of Photographic Films or Plates from the Base Materials Thereof

Info

Publication number
GB1199586A
GB1199586A GB48720/67A GB4872067A GB1199586A GB 1199586 A GB1199586 A GB 1199586A GB 48720/67 A GB48720/67 A GB 48720/67A GB 4872067 A GB4872067 A GB 4872067A GB 1199586 A GB1199586 A GB 1199586A
Authority
GB
United Kingdom
Prior art keywords
plates
alkali
bath containing
photographic films
stripping
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
GB48720/67A
Inventor
Josef Fabian
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.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
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 Czech Academy of Sciences CAS filed Critical Czech Academy of Sciences CAS
Publication of GB1199586A publication Critical patent/GB1199586A/en
Expired legal-status Critical Current

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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/24—Removing emulsion from waste photographic material; Recovery of photosensitive or other substances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Detergent Compositions (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1,199,586. Recovering photographic supports. CESKOSLOVENSKA AKADEMIE VED. Oct. 26, 1967 [Nov.3, 1966; March 31, 1967], No.48720/67. Heading G2C. Coating materials are stripped from the bases of photographic films and plates by (1) continuously feeding the film or plate through a first bath containing an alcoholic solution of an alkali-metal carbonate and an alkali-metal hypochlorite, (2) washing in a second bath containing alkali-metal sulphite solution, and optionally (3) rinsing with water, (4) dehydrating (e.g. with methanol or ethanol) and (5) drying. Preferably the base is of a cellulosic material, between steps (3) and (4) is passed through a bath containing acetone dioxane and/or methyl ethyl ketone, optionally mixed with aqueous alcohol or ethyl acetate.
GB48720/67A 1966-11-03 1967-10-26 A Continuous Method of Stripping-off Coating Material of Photographic Films or Plates from the Base Materials Thereof Expired GB1199586A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS698066 1966-11-03
CS232867 1967-03-31

Publications (1)

Publication Number Publication Date
GB1199586A true GB1199586A (en) 1970-07-22

Family

ID=25745607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48720/67A Expired GB1199586A (en) 1966-11-03 1967-10-26 A Continuous Method of Stripping-off Coating Material of Photographic Films or Plates from the Base Materials Thereof

Country Status (4)

Country Link
US (1) US3546149A (en)
DE (1) DE1597518B2 (en)
FR (1) FR1557038A (en)
GB (1) GB1199586A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213782A (en) * 1977-02-03 1980-07-22 Kremp Richard E Process for removal of silver from photographic film
FR2474706B1 (en) * 1980-01-25 1985-07-12 Kremp Richard METHOD AND APPARATUS FOR WITHDRAWING MONEY FROM ONE OR TWO EMULSIFIED SIDES OF A PHOTOGRAPHIC FILM
US4814439A (en) * 1987-08-17 1989-03-21 The United States Of America As Repesented By The Secretary Of The Army Chemical process for the denitration of nitrocellulose
DE4427097A1 (en) * 1994-07-30 1996-02-01 Bluetech Gmbh Conversion of used photographic film into large format transparent film
US5500328A (en) * 1995-01-12 1996-03-19 Eastman Kodak Company Recovery of photographic film base

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846334A (en) * 1953-03-23 1958-08-05 Lucile H Fleck Method of reconditioning exposed and developed photographic film
US2790728A (en) * 1954-06-29 1957-04-30 Eastman Kodak Co Manufacture of light-sensitive gelatinsil ver halide photographic layers
GB948619A (en) * 1956-03-28 1964-02-05 Hans Rutgers Improvements in or relating to a process for treating films before coating the filmswith gelatine containing light-sensitive substances

Also Published As

Publication number Publication date
US3546149A (en) 1970-12-08
DE1597518A1 (en) 1970-08-06
FR1557038A (en) 1969-02-14
DE1597518B2 (en) 1977-04-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees