EP0564902A1 - Verpackung für photographische Chemikalien - Google Patents

Verpackung für photographische Chemikalien Download PDF

Info

Publication number
EP0564902A1
EP0564902A1 EP93104841A EP93104841A EP0564902A1 EP 0564902 A1 EP0564902 A1 EP 0564902A1 EP 93104841 A EP93104841 A EP 93104841A EP 93104841 A EP93104841 A EP 93104841A EP 0564902 A1 EP0564902 A1 EP 0564902A1
Authority
EP
European Patent Office
Prior art keywords
bag
chemicals
composition
photographic
bags
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.)
Withdrawn
Application number
EP93104841A
Other languages
English (en)
French (fr)
Inventor
John Leslie Cawse
Michael Philip Odulami Davidson
Michael John Parker
Terence Charles Webb
John Charles Clarke
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
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 Ilford Ltd filed Critical Ilford Ltd
Publication of EP0564902A1 publication Critical patent/EP0564902A1/de
Withdrawn legal-status Critical Current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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
    • G03C5/265—Supplying of photographic processing chemicals; Preparation or packaging thereof of powders, granulates, tablets
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
    • G03C5/267—Packaging; Storage
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/38—Fixing; Developing-fixing; Hardening-fixing

Definitions

  • This invention relates to packages for photographic chemicals.
  • Photographic chemicals for use in processing exposed photographic material are usually sold either as solids which require to be weighed out and then dissolved in water or as concentrated solutions of chemicals which are then diluted to produce the required concentration.
  • powdered chemicals require handling and efforts are being made to cut down the production of fine chemical particles which are sure to be formed when powdered chemicals are weighed out or added to water.
  • it is expensive to transport concentrated chemical solutions because of the weight of water being transported.
  • a package for photographic solid processing chemicals which comprises at least one bag made from hydroxyethyl cellulose, wherein the sum of the contents of the bag or bags based on the amount of chemicals to provide a working strength solution of 1000ml is not more than 100g of chemicals and of which in the case of developing chemicals not more than 50g of sodium sulphite and/or sodium or potassium carbonate may be present and of which in the case of a solid fixer composition not more than 70g of ammonium thiosulphate may be present.
  • the hydroxyethyl cellulose used to prepare the bags comprise from 1 to 10% by weight of a water-soluble plasticiser.
  • Suitable water-soluble plasticisers are polyols and polyalkylene oxide derivatives.
  • An especially suitable plasticiser is a polyethylene glycol which has a molecular mass of from 150 to 500.
  • the effect of the plasticiser is threefold. Firstly it renders the bag more flexible. Secondly it renders the bag heat sealable, thirdly it helps in the dissolution of the bag.
  • the thickness of the bag, and the amount of plasticiser present in the polymer from which the bag is composed are so chosen that the bag dissolves in water at 20°C in less than 5 minutes and preferably in from 1 to 2 minutes, providing that the thickness of the bag is sufficient to enable the bag to be picked-up without it rupturing.
  • the thickness of the bag is from 10 to 120 ⁇ m and most preferably from 30-60 ⁇ m.
  • Hydroxy ethyl cellulose may be obtained by treating cellulose with sodium hydroxide and then reacting it with ethylene oxide. Hydroxy ethyl groups are introduced into the chain of anhydroglucose units which form the cellulose chain. Each anhydrocellulose unit has three reactive hydroxyl groups. The average number of moles of ethylene oxide that become attached to each anhydroglucose unit in the cellulose chain is called moles of substituent combined or M.S. The higher the M.S. the greater the water solubility of the hydroxy ethyl cellulose. However it is difficult and expensive to obtain a hydroxy ethyl cellulose with an M.S. of 3. A particularly useful hydroxy ethyl cellulose for use in the present invention has an M.S. of 2.5, and this is extremely water-soluble. An example of such a hydroxy ethyl cellulose is Natrosol 250 which is manufactured by and the registered trade mark of Hercules Incorporated. Clear films can be cast from this compound.
  • the dimensions of the bag depend on the weight of the chemicals required to prepare 1000ml of the working strength solution.
  • composition 1 sodium sulphite 5.4g diethylene triamine pentacetic acid 2g sodium ascorbate 30g 4 methyl-4 hydroxymethyl-1-phenyl-3 pyrazolidinone 2.5g potassium carbonate 30g potassium bromide 3.3g
  • the open end was then heat sealed to form an enclosed sachet of the developer composition.
  • This solution was used to develop thirty 10" x 8" sheets of exposed photographic black and white paper comprising a standard silver chlorobromide emulsion.
  • the sensitometric results were compared with the results obtained using the same formulation developer which had been prepared using the same chemicals straight from their respective containers.
  • Colour developing composition Potassium bromide 1.05g ) Bag A sodium tripoly phosphate 3.5g ) sodium carbonate 28.g ) sodium metabisulphite 1.5g ) sodium sulphite 3.0g ) Colour developing agent 2.38g ) Bag B hydroxylamine sulphite 2g ) 7. 'One shot' film developer sodium sulphite 5g ) Bag A sodium carbonate 2.5g ) stabiliser 0.012g) Hydroquinone 0.61g ) Bag B 4 methyl-4 hydroxymethyl-1 phenyl-3 pyrazolidinone 0.2g ) Ascorbic acid 1g ) Diethylene triamine pentaacetic acid 2g )
  • composition 1 as hereinbefore set forth and also paper fixer of composition 4.
  • each bag was then heat sealed to form an enclosed sachet of in one case developer composition and in the other case fixer composition.
  • the bags have been hand made and the bags filled by hand.
  • the bags are cast in bulk and they are filled in an automatic filling plant with the operators not coming into contact with the powdered chemicals.
  • the packages are packed in boxes from which the photographic laboratory or end user picks up a bag or bags and dissolves it or them in water to prepare a working strength solution of the required composition without coming into contact with the powdered chemicals at all.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Packages (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP93104841A 1992-04-07 1993-03-24 Verpackung für photographische Chemikalien Withdrawn EP0564902A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929207521A GB9207521D0 (en) 1992-04-07 1992-04-07 Package for photographic chemicals
GB9207521 1992-04-07

Publications (1)

Publication Number Publication Date
EP0564902A1 true EP0564902A1 (de) 1993-10-13

Family

ID=10713549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104841A Withdrawn EP0564902A1 (de) 1992-04-07 1993-03-24 Verpackung für photographische Chemikalien

Country Status (3)

Country Link
EP (1) EP0564902A1 (de)
JP (1) JPH0643597A (de)
GB (1) GB9207521D0 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6424900A (en) * 1987-07-21 1989-01-26 Sanki Shokuhin Kk Packed detergent
EP0444230A1 (de) * 1990-03-01 1991-09-04 Aicello Chemical Company Limited In kaltem Wasser löslicher Film
EP0469877A1 (de) * 1990-07-30 1992-02-05 Konica Corporation Verpackte, feste, photographische Behandlungsstoffe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6424900A (en) * 1987-07-21 1989-01-26 Sanki Shokuhin Kk Packed detergent
EP0444230A1 (de) * 1990-03-01 1991-09-04 Aicello Chemical Company Limited In kaltem Wasser löslicher Film
EP0469877A1 (de) * 1990-07-30 1992-02-05 Konica Corporation Verpackte, feste, photographische Behandlungsstoffe

Also Published As

Publication number Publication date
JPH0643597A (ja) 1994-02-18
GB9207521D0 (en) 1992-05-20

Similar Documents

Publication Publication Date Title
US5351103A (en) Automatic developing machine for silver halide photographic light-sensitive materials
JPH04221951A (ja) 粒体化写真化学物質
EP0391154B1 (de) Konzentrierte photographische Entwicklerzusammensetzung und Herstellungsmethode dafür
US5240822A (en) Packed photographic solid processing agents
JPH05119454A (ja) ハロゲン化銀写真感光材料用自動現像機
EP0564902A1 (de) Verpackung für photographische Chemikalien
EP0469877B1 (de) Verpackte, feste, photographische Behandlungsstoffe
WO1981002934A1 (en) Photographic processing concentrates
JP2979346B2 (ja) 写真感光材料用処理剤
JPH063787A (ja) ハロゲン化銀写真感光材料用固形発色現像処理剤及び該固形発色現像処理剤を用いた処理方法
WO1994011783A1 (en) Solid antifoggant agent and solid single part high contrast rapid access developer
JPH0485533A (ja) 写真用処理剤の固形化方法
JPH0419739A (ja) ハロゲン化銀写真感光材料用固形定着剤及び定着液使用液
GB2335999A (en) Method of making uniformly mixed dry photographic processing composition using hot melt binder
JPH0854723A (ja) ハロゲン化銀カラー写真感光材料用固体処理剤
JP2976149B2 (ja) ハロゲン化銀写真感光材料の処理方法
JPH09171236A (ja) 写真処理剤用包装材料及びそれにより包装された写真処理剤キット
JPH0728213A (ja) ハロゲン化銀カラー写真感光材料用固体処理剤
JP3450556B2 (ja) 固形現像処理剤
JP3698213B2 (ja) ハロゲン化銀カラー写真感光材料発色現像用固体処理剤
EP0509807A1 (de) Satz von Verarbeitungschemikalien für photographisches, lichtempfindliches Silberhalogenidmaterial und Verfahren zum Auflösen
JP3177827B2 (ja) ハロゲン化銀写真感光材料用自動現像機
JP3613765B2 (ja) ハロゲン化銀カラー写真感光材料発色現像用固体処理剤及びその製造方法
EP0611989A1 (de) Feste Zusammensetzung zur Verarbeitung von photographischen lichtempfindlichen Silberhalogenidfarbmaterialien und deren Verarbeitungsverfahren
JP2843877B2 (ja) 写真用処理剤

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19931207

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19940704