WO1982000901A1 - Method of recovering a photographic addendum from a dispersion thereof - Google Patents

Method of recovering a photographic addendum from a dispersion thereof Download PDF

Info

Publication number
WO1982000901A1
WO1982000901A1 PCT/GB1981/000174 GB8100174W WO8200901A1 WO 1982000901 A1 WO1982000901 A1 WO 1982000901A1 GB 8100174 W GB8100174 W GB 8100174W WO 8200901 A1 WO8200901 A1 WO 8200901A1
Authority
WO
WIPO (PCT)
Prior art keywords
dispersion
active agent
surface active
water
recovering
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.)
Ceased
Application number
PCT/GB1981/000174
Other languages
English (en)
French (fr)
Inventor
Kodak Co Eastman
Ltd Kodak
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.)
Kodak Ltd
Eastman Kodak Co
Original Assignee
Kodak Ltd
Eastman Kodak Co
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 Kodak Ltd, Eastman Kodak Co filed Critical Kodak Ltd
Priority to DE8181902384T priority Critical patent/DE3171315D1/de
Publication of WO1982000901A1 publication Critical patent/WO1982000901A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • 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

Definitions

  • This invention relates to a method of recovering a photographic addendum from a dispersion thereof.
  • a method of recovering a water-insoluble organic compound from a dispersion of a mixture thereof with an oil-former in an aqueous medium containing a hydrophilic colloid and a surface active agent which comprises adding to the liquid dispersion an oleophilic non-ionic surface active agent so as to cause crystallization of the organic compound.
  • the compound to be recovered After the compound to be recovered has crystallised, it may be filtered and washed with warm water to remove the hydrophilic colloid and any water soluble surface-active agent. It may also be washed with an organic solvent having a low solvent power for the compound being recovered but a high solvent power for the oleophilic surface active agent. Hydrocarbon solvents such as petroleum ether, hexane and heptane are suitable in many instances. Often, the dried recovered compound is sufficiently pure for reuse without further treatment.
  • the invention is illustrated by the following
  • Cyan dye-forming coupler 2-[ ⁇ -(2,4-di-tert-amyl- phenoxy)-butyramido]-4,6- dichlcro-5-methylphenol.
  • Oil former dibutylphthalate.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
PCT/GB1981/000174 1980-09-01 1981-09-01 Method of recovering a photographic addendum from a dispersion thereof Ceased WO1982000901A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8181902384T DE3171315D1 (en) 1980-09-01 1981-09-01 Method of recovering a photographic addendum from a dispersion thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8028150 1980-09-01
GB8028150800901 1980-09-01

Publications (1)

Publication Number Publication Date
WO1982000901A1 true WO1982000901A1 (en) 1982-03-18

Family

ID=10515760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1981/000174 Ceased WO1982000901A1 (en) 1980-09-01 1981-09-01 Method of recovering a photographic addendum from a dispersion thereof

Country Status (5)

Country Link
US (1) UST102402I4 (https=)
EP (2) EP0058694B1 (https=)
JP (1) JPS57501347A (https=)
DE (1) DE3171315D1 (https=)
WO (1) WO1982000901A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61231548A (ja) * 1985-04-05 1986-10-15 Konishiroku Photo Ind Co Ltd 写真廃液の処理方法及び写真自動現像機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1274048A (en) * 1969-07-30 1972-05-10 Bayer Ag Process for the production of pure basic dyestuffs
DE2706550A1 (de) * 1976-02-24 1977-08-25 Betz Int Aethylenoxid-polymere fuer die schaumflotation
GB2003856A (en) * 1977-08-03 1979-03-21 Fuji Photo Film Co Ltd Process of reclaiming photographic couplers from organic solutions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1274048A (en) * 1969-07-30 1972-05-10 Bayer Ag Process for the production of pure basic dyestuffs
DE2706550A1 (de) * 1976-02-24 1977-08-25 Betz Int Aethylenoxid-polymere fuer die schaumflotation
GB2003856A (en) * 1977-08-03 1979-03-21 Fuji Photo Film Co Ltd Process of reclaiming photographic couplers from organic solutions

Also Published As

Publication number Publication date
EP0058694B1 (en) 1985-07-10
JPS57501347A (https=) 1982-07-29
EP0047170A1 (en) 1982-03-10
EP0058694A1 (en) 1982-09-01
UST102402I4 (en) 1982-11-02
DE3171315D1 (en) 1985-08-14

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