EP0197732A2 - Fabrication de petits récipients de liquides gazeux - Google Patents

Fabrication de petits récipients de liquides gazeux Download PDF

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Publication number
EP0197732A2
EP0197732A2 EP19860302341 EP86302341A EP0197732A2 EP 0197732 A2 EP0197732 A2 EP 0197732A2 EP 19860302341 EP19860302341 EP 19860302341 EP 86302341 A EP86302341 A EP 86302341A EP 0197732 A2 EP0197732 A2 EP 0197732A2
Authority
EP
European Patent Office
Prior art keywords
liquid
nitrogen
bottle
beer
cans
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Withdrawn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
EP19860302341
Other languages
German (de)
English (en)
Inventor
John Josiah Wren
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.)
GATEHOUSE TECHNICAL VENTURES Ltd
Original Assignee
GATEHOUSE TECHNICAL VENTURES 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 GATEHOUSE TECHNICAL VENTURES Ltd filed Critical GATEHOUSE TECHNICAL VENTURES Ltd
Publication of EP0197732A2 publication Critical patent/EP0197732A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/006—Adding fluids for preventing deformation of filled and closed containers or wrappers

Definitions

  • This invention relates to the manufacture of small containers containing carbonated liquids and has a particularly useful but not exclusive application in relation to small (i.e. single portion) containers of beer and other carbonated beverages.
  • Such containers may be in the form of ring-pull cans, or bottles with crown closures, for example which cannot be charged with additional gas after the container has been closed.
  • Foam is an important element in the consumer- appeal of most beers and of some other carbonated beverages and other carbonated liquids.
  • the most important means by which foam is produced by any of these liquids is the release of carbon dioxide from super-saturated solution.
  • Super-saturation arises when a previously-closed, pressurized container is opened to atmosphere or when the liquid contents are discharged from within it through a tap or similar device. Bubbles of carbon dioxide gas are then released by turbulent flow, by nucleation on solid surfaces or particles, or by diffusion into existing gas bubbles.
  • volume, stability, bulk viscosity and lacing of foam are governed by a number of factors, important among which are the content of solutes in the aqueous phase and the size-distribution of gas bubbles.
  • small gas bubbles with suitable colloids adsorbed at the gas/liquid interface tend to produce the most stable and viscous foams; moreover the fine texture of these foams reflects incident light in a manner that is pleasing to the eye.
  • Nitrogen is however relatively insoluble in water, and equilibrates between the beverage and the sealed headspace (vacuity) above it, the volume of which is commonly in the range 5% - 10% of the total container volume, so that much more nitrogen is required than will actually dissolve in the beverage. Furthermore, if nitrogen is dissolved in the beverage in a reservoir before a filling operation carried out in currently used equipment for filling small containers with carbonated beverages, most of the nitrogen is removed by 'gas washing' because due to the much lower solubility of nitrogen than carbon dioxide in the liquid, any bubbles liberated by liquid movement entrain nitrogen leaving the nitrogen content of the solution depleted.
  • a method of canning or bottling a liquid product in a small (e.g. one-portion) non-valved can or bottle in which method the can or bottle is almost filled with the liquid product and a quantity of liquid nitrogen is then added to the liquid product in the container, and the container is then immediately sealed.
  • the containers Since the contents of one-portion containers of beverages are intended to be consumed entirely, and not re-sealed in the container, the containers are non-valved and there is no requirement for the beverage to be capable of re-generating a head pressure of gaseous nitrogen after the container has been opened.
  • the mass of liquid nitrogen injected per container must be sufficient, after it has boiled and dissolved, to satisfy the headspace and solution requirements without exceeding the container's bursting pressure at any time in its subsequent history.
  • a limiting requirement will usually be survival in a pasteurizer at about 60°C.
  • a bottle of brimful capacity 400ml, containing 380ml of lager beer was passed along a powered conveyor below a constant jet of liquid nitrogen.
  • the size of the jet and the speed of the conveyor were selected so that 0.25 grammes of liquid nitrogen fell into the beer.
  • the bottle was immediately capped and transported to a testing laboratory. There it was subjected to a standard pouring test as 18°C, the whole volume being transferred to a drinking glass, steadily, during 7 seconds.
  • the same test was applied to a control bottle, identical in all respects other than the nitrogen injection.
  • the nitrogen-treated beer gave a finer-textured foam which collapsed at about half the rate of the control; when poured from the glass it left an extensive pattern of lacing whereas the control did not.
  • a seamless one-piece aluminium can of 440-ml capacity was filled up to about 3mm (1/8 inch) from the brim with lager beer.
  • 0.25 gm liquid nitrogen in the form of a thin jet was added to the beer, following which a current of nitrogen gas was directed across the surface of the beer and the can was then immediately sealed in the conventional manner by the application of a lid thereto.
  • the sealed can was then inverted and the contents pasteurized at 60°C.
  • the weight of the can was then checked to ensure that there was no leakage of its contents. Subsequently the can was opened for testing of the foaming qualities of the beer by the Trufoam test described by P J Wilcon and A P Mundy in the Journal of the Institute of Brewing 1984 Vol.
  • the test involves pouring a standard quantity of the beer into a standard glass under standard temperature conditions, the glass and its contents being disposed between a vertically aligned light source and a photoelectric cell.
  • the foam on the beer forms a barrier between the light source and the cell.
  • the cell emits a signal, and the time taken from the pouring of the beer to the emission of the signal indicates the life of the foam.
  • each of the cans A was a control sample in which gaseous nitrogen was blown across the surface of the beer immediately before the can was sealed, but no liquid nitrogen was added to the beer.
  • Cans B and C were treated in the same manner but 0.25 gm of liquid nitrogen was added to the beer in cans B and 0.5 gm of liquid nitrogen was added to the beer in cans C before the lids were sealed on the cans.
  • empty one-piece aluminium cans 10 of one-portion (440-ml) capacity are fed along a conveyor on to the turntable 11 of a rotary filling machine of the carousel type which initially fills the cans with beer 12 to a level about 1/8" from the brim.
  • the cans of beer are then transferred to an output conveyor 11a and pass under a nozzle 13 which is emitting a continuous jet 14 of liquid nitrogen, the flow of nitrogen being adjusted in relation to the time taken for a can to pass under the nozzle so as to add the required weight of liquid nitrogen, e.g. 0.25 gm, to the beer in the can.
  • the cans are transferred sequentially to the turntable 11b of a sealing machine in which gaseous nitrogen or carbon dioxide 15 is then blown across the surface of the beer and a lid 16 is immediately sealed on the can. Subsequently the cans are inverted and passed through a pasteurizing apparatus.
  • the process is equally applicable to bottles of one-portion capacity containing beers or other carbonated or non-carbonated liquids which are required to have good foaming qualities.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)
EP19860302341 1985-04-04 1986-03-27 Fabrication de petits récipients de liquides gazeux Withdrawn EP0197732A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858508835A GB8508835D0 (en) 1985-04-04 1985-04-04 Small container of carbonated liquids
GB8508835 1985-04-04

Publications (1)

Publication Number Publication Date
EP0197732A2 true EP0197732A2 (fr) 1986-10-15

Family

ID=10577211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860302341 Withdrawn EP0197732A2 (fr) 1985-04-04 1986-03-27 Fabrication de petits récipients de liquides gazeux

Country Status (3)

Country Link
EP (1) EP0197732A2 (fr)
AU (1) AU5560286A (fr)
GB (1) GB8508835D0 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619550A1 (fr) * 1987-08-17 1989-02-24 Air Liquide Installation de conditionnement de produits dans des recipients
US4865088A (en) * 1986-09-29 1989-09-12 Vacuum Barrier Corporation Controller cryogenic liquid delivery
DE19538216A1 (de) * 1995-10-13 1997-04-17 Schmalbach Lubeca Verfahren zum Herstellen von mit Bier befüllten Dosen
US6024996A (en) * 1995-05-29 2000-02-15 Sara Lee/De N.V. Packaged carbonated coffee beverage
WO2001032530A1 (fr) * 1999-11-05 2001-05-10 Nytrotec Beverages Ltd Distribution de boisson et contenants a boisson

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525089A4 (en) * 1990-04-19 1993-09-22 Weir & Harrod Machinery Pty. Limited Drum closure
WO1999002406A1 (fr) * 1997-07-10 1999-01-21 Amcor Packaging (Australia) Pty. Ltd. Production de produits liquides contenus dans des canettes, bouteilles et autres recipients appropries
AU753940B2 (en) * 1997-07-10 2002-10-31 Amcor Packaging (Australia) Pty Ltd Producing liquid products contained in cans, bottles and other suitable containers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865088A (en) * 1986-09-29 1989-09-12 Vacuum Barrier Corporation Controller cryogenic liquid delivery
FR2619550A1 (fr) * 1987-08-17 1989-02-24 Air Liquide Installation de conditionnement de produits dans des recipients
EP0306379A1 (fr) * 1987-08-17 1989-03-08 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Installation de conditionnement de produits dans des récipients
US4977723A (en) * 1987-08-17 1990-12-18 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plant for packing products in containers
US6024996A (en) * 1995-05-29 2000-02-15 Sara Lee/De N.V. Packaged carbonated coffee beverage
DE19538216A1 (de) * 1995-10-13 1997-04-17 Schmalbach Lubeca Verfahren zum Herstellen von mit Bier befüllten Dosen
WO2001032530A1 (fr) * 1999-11-05 2001-05-10 Nytrotec Beverages Ltd Distribution de boisson et contenants a boisson
EP1486432A1 (fr) * 1999-11-05 2004-12-15 Nytrotec Beverages Ltd Distribution de boisson et récipient pour boisson

Also Published As

Publication number Publication date
AU5560286A (en) 1986-10-09
GB8508835D0 (en) 1985-05-09

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Inventor name: WREN, JOHN JOSIAH