WO2012164315A2 - Système d'élimination d'oxygène actif - Google Patents

Système d'élimination d'oxygène actif Download PDF

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Publication number
WO2012164315A2
WO2012164315A2 PCT/GB2012/051267 GB2012051267W WO2012164315A2 WO 2012164315 A2 WO2012164315 A2 WO 2012164315A2 GB 2012051267 W GB2012051267 W GB 2012051267W WO 2012164315 A2 WO2012164315 A2 WO 2012164315A2
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen
absorbing device
oxygen absorbing
water
envelope
Prior art date
Application number
PCT/GB2012/051267
Other languages
English (en)
Other versions
WO2012164315A3 (fr
Inventor
Nigel Parker
Original Assignee
Emco Packaging Systems 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 Emco Packaging Systems Ltd. filed Critical Emco Packaging Systems Ltd.
Publication of WO2012164315A2 publication Critical patent/WO2012164315A2/fr
Publication of WO2012164315A3 publication Critical patent/WO2012164315A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A23L3/3427—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O in which an absorbent is placed or used
    • A23L3/3436—Oxygen absorbent
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/42—Preservation of non-alcoholic beverages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/244—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes provided with oxygen absorbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
    • B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package

Definitions

  • This invention relates to an oxygen absorbing food packaging inclusion, in the form of a water impermeable but water vapour and gas permeable envelope, containing water vapour or hydrogen activated, finely particulate compounds.
  • This device has been designed as an active inclusion, for use, in the presence of free, aqueous liquids, within the caps or closures of retail drinks packaging, in order to establish and maintain a stable, oxygen free atmosphere within the headspace of the packaging concerned.
  • the presence of oxygen can first be reduced by displacing with nitrogen any dissolved oxygen in the product concerned and then employing, at packing, a nitrogen back- flush to ensure the minimum level of oxygen within the head space.
  • a device according to claim 1.
  • the device has been designed to overcome the above problem and accommodate those active, oxygen absorbing fill material formulations in question, by enabling them to perform effectively in the presence of free water, under conditions of partial or temporary inundation, without the possibility of components of the fill material formulation, or reaction products migrating into the food products concerned.
  • a water impermeable membrane/layer/film may be one that provides a fully effective barrier to the passage of water, either as a free liquid or as an aqueous solution and its associated dissolved solutes.
  • a water impermeable membrane, layer or film may be one that complies with EC Directive 97/48/EC, to Commission regulation no. 10/201 1. This directive requires that the membrane, layer or film is impermeable to liquid water and any associated dissolved solvents, when tested with each one of the following food simulants: -
  • the device may contain as the fill material any one of a number of fill material formulations, including for example those currently available in commercial oxygen 'scavenging' food packaging inclusions.
  • Suitable fill materials include as the active component either finely comminuted iron metal, ascorbic acid, calcium ascorbate, sodium ascorbate, sodium erythorbate or finely comminuted palladium metal, being designed to establish and maintain an oxygen free atmosphere within the headspace of bottles, sachets or cartons of aqueous liquid foods such as beverages.
  • a particular benefit of the invention is that it allows the use of finely comminuted iron, which is a relatively inexpensive material.
  • the respective weights of the above fill material formulations are designed to effect the shelf life required and are thus specific to the product packed and will therefore vary from product to product.
  • the envelope of the device may be fabricated from a bi-laminate material, consisting of a porous support layer and a liquid water impermeable layer.
  • the liquid water impermeable layer may have a water vapour transmission rate WVTR in the range of 10g- 200g/m 2 /24hr@23°C & 85%relative humidity and an oxygen transmission rate OTR in the range of 650cm 3 -20,000cm 3 /m 2 /24hr/bar@23°C.
  • the envelope material is designed to allow the transmission of water vapour, oxygen and hydrogen at levels that enable the respective fill material formulations to perform optimally.
  • the liquid water impermeable layer may be a water impermeable layer of polyamide (PA) film, with a thickness of 8 ⁇ - 20 ⁇ .
  • PA polyamide
  • the gauge of PA film, deployed in the laminate, is determined by the WVTR and OTR required by the performance demands of the fill material formulation imposed by the packed product in question and will vary from product to product.
  • the support is a non- woven, opaque 45 g/m 2 -55g/m 2 polyethylene fabric bonded, with a polyurethane adhesive, to the liquid water impermeable layer.
  • the water vapour and gas permeable layer of a PA film is permeable to water vapour, oxygen and hydrogen at levels sufficient to prevent these gas becoming a limiting factor in the optimal performance of any of the respective fill material formulations.
  • the selection of the gauge of the water vapour and gas permeable layer of a PA film employed may be determined by the performance requirements, of any of the respective fill material formulations, imposed by the packed aqueous liquid products in question and will vary from product to product.
  • the envelope of the oxygen absorbing device preferably retains fully the fill material formulation selected, both dry and hydrated, thus preventing entirely the migration, from the device and into the food, of components of the fill material formulation or any reaction products.
  • the envelope of a composite material may be a thermoformed, plano-convex, shallow, rectangular or discoid container, the dimensions of which are determined by the mass of fill material formulation required to meet the particular oxygen absorption demands of the packed product concerned.
  • he envelope of a composite material is a thermoformed, plano- convex, shallow, rectangular or discoid container, sealed with an APET lidding film, carrying a self adhesive layer with peelable backing strip and retains fully the fill material formulation selected, both dry and hydrated, when in contact with food and in the presence of free, liquid water, preventing entirely the migration of components of the fill material formulation or reaction products from the device.
  • a first embodiment includes an oxygen scavenger with an outer envelope 4, 6 and a fill material 2.
  • the outer envelope is made of two layers, a water permeable support layer 4 on the inside and a liquid water impermeable layer 6 on the outside.
  • Alternative embodiments may reverse the order of layers.
  • the device has been designed to function with the range of fill material formulations.
  • Some such formulations may be used as high capacity oxygen absorbers in commercially available, active food packaging inclusion products.
  • Such absorbers include: -
  • the above fill material formulations can be in either loose particulate or 'solid state' format, where, in the latter, the compounds are bound within in an inert matrix.
  • the Pd metal in the presence of hydrogen acts as a catalyst, combining the former gas with oxygen, effectively removing the latter from the headspace in the form of water vapour, as the reaction product.
  • the Pd metal has the same general requirements of the device as do the other oxygen scavenging reactants detailed above, with the exception that, in this case, rather than allowing its inward diffusion, water vapour is instead required to diffuse freely out from within the envelope of the device, into the headspace of the packaging concerned, in order to prevent any build-up of pressure within the device, leading to the rupture and loss of integrity of the envelope.
  • the envelope of the device is designed to have a water vapour transmission rate (WVTR) and an oxygen transmission rate (OTR) that are both high enough to avoid becoming limiting factors in the oxygen absorbing performance of these fill materials.
  • WVTR water vapour transmission rate
  • OTR oxygen transmission rate
  • the polymer membrane selected is a polyamide (PA) film 8 ⁇ - 20 ⁇ thickness, which liquid water impermeable and has a WVTR in the range of 10g-200g/m2/24hr@23°C & 85%RH and an OTR in the range of 650cm 3 -20,000cm 3 /m 2 /24hr/bar@23°C.
  • the gauge of PA film, within the range 8 ⁇ - 20 ⁇ , selected for inclusion in the laminate is determined by the WVTR and OTR required by the performance demands of the fill material imposed by the packed product in question and will vary from product to product.
  • PA as the membrane polymer is determined by its unique property of having the combination of both relatively high WVTR and OTR performances that are capable of meeting the requirements for the activation and sustained reaction of the fill material formulations listed.
  • WVTR relatively high WVTR
  • OTR optical coherence tomography
  • PE polyethylene
  • the PA film is relatively fragile and in order to maintain its integrity and thus avoid perforation, it may be protected and supported by a water vapour support layer.
  • a water vapour support layer This may be, for example, of a non woven polyethylene (PE) fabric, typically at a density of 45.0g/m 2 - 55.0g/m 2 , which for preference would be a Tyvek material. This material is not an effective barrier to water vapour, oxygen or hydrogen.
  • PE polyethylene
  • the membrane film and the supporting fabric are bonded together with a polyurethane adhesive, or a material of equivalent properties and performance, the composition and thickness of which will have a negligible effect on either the WVTR or OTR of membrane layer or the laminate in general.
  • the WVTR may be measured by employing a commercially available water permeation analyser such as the MOCON PERMATRAN-W Model 3/33, which is designed to test this property of packaging films and has integral automatic relative humidity generation.
  • the machine measures according to the ASTM standard F - 1249.
  • the OTR may be measured by employing a commercially available oxygen transmission rate analyser, such as the MOCON OX-TRAN Model 1/50, which is designed to test this property of packaging films.
  • the machine measures according to the ASTM standard F- 1927.
  • the hydrogen transmission rate of the membrane film as hydrogen has comparatively a very small molecule, will be significantly greater than that of oxygen through this polymer, exceeding the latter rate by a factor greater than 2, thus adequately exceeding the minimum requirements to provide 2 molecules of hydrogen for 1 of oxygen in the Pd catalyzed reaction.
  • the manufacture of the device, for deployment as an inclusion within caps and closures of aqueous liquid food or beverage packaging employs existing technology in the form of a modified lamination process, in which the several components, in web form, are bought together and bonded to produce a single material.
  • the selected fill material formulation is index-deposited on a wadding fabric based on polypropylene (PP), polyester and cellulose with an acrylate-based binding aid, or a material combination of similar properties and performance, which is then over-layered with either a (PP) or an amorphous polyethylene terephthalate (APET) 30 ⁇ film as the backing sheet and the PA film/non-woven PE fabric laminate as the coverface.
  • PP polypropylene
  • APET amorphous polyethylene terephthalate
  • the interior/external relationship between the PA film and the non-woven PE fabric is interchangeable.
  • the compound laminate material produced is then sealed, along the edge of a pre-determined contour, by the alternatives of, heat bonding, ultrasonic welding or dielectric welding and then die-cut, in an indexed operation, to produce the inclusion shapes and sizes required, although the latter will generally be circular.
  • the device is intended to be fitted within the caps or closures of bottles sachets or cartons of aqueous liquid foods or beverages and perform as an integral part of a 'leak-proof seal.
  • the PA film/non-woven PE fabric laminate material is thermoformed as a shallow concave, rectangular or discoid cavity, into which the fill material is deposited and then lidded with a gas impermeable membrane of APET, or a material of equivalent properties and performance, and sealed by one of the alternatives of heat bonding, ultrasonic welding or dielectric welding
  • the impermeable membrane of APET or a material of equivalent properties and performance can be overlaid with a die-cut layer of self adhesive with a peelable backing sheet, which allows it to wound on to a reel for subsequent automated dispensing
  • the device can be manufactured using modified, horizontal tray forming and lidding technology.
  • the device can be readily manufactured in a range of sizes
  • the device is intended to be placed and secured, in a pre- determined position, on the inner surface of the primary packaging of the packed food product.
  • the dimensions of the device and thus its surface area will reflect both the mass and formulation volume of the fill material required to effect the pack atmosphere control desired, although it is, nevertheless, intended that it will form a relatively discrete an unobtrusive food packaging inclusion.
  • the selected fill material formulation is index-deposited on to a wadding fabric based on polypropylene, polyester and cellulose with an acrylate-based binding aid, or materials of similar properties and performance, which is then over-layered with a PP or APET 30 ⁇ film as the backing sheet and the PA film/non-woven PE fabric laminate as the coverface and sealed by the alternatives of heat bonding, dielectric welding or ultrasonic welding.
  • the device can be manufactured by employing existing technology in the form of a modified lamination process, in which the several components, in web form, are bought together and bonded to produce a single material.
  • the envelope material is thermoformed as a shallow concave, rectangular or discoid cavity into which the fill material is deposited.
  • the filled cavities are then overlaid and lidded with a gas impermeable membrane of APET, or a material of equivalent properties and performance, and sealed by one of the alternatives of heat bonding, dielectric welding or ultrasonic welding, as appropriate.
  • the device can be manufactured employing modified, horizontal tray forming and lidding technology.
  • the device is intended to be placed and secured, in a pre-determined position, on the inner surface of the primary packaging of the packed product.
  • the size and thus the exposed surface area of either of the formats of the device is designed to effect the pack atmosphere control required and is thus specific to the product packed and will therefore vary from product to product.
  • the size and thus the exposed surface area of either of the formats of the device is designed to effect the shelf life required and is thus specific to the product packed and will therefore vary from product to product. Active inclusions within food packaging must, at the very least, meet the overall migration as detailed in EC Directive 97/48/EC, to Commission regulation no. 10/201 1 , using the following food simulants: -
  • the applicants have tested a device where the envelope has laminate of a Tyvek (46g/m2) support and a 4 ⁇ thick polyamide liquid water impermeable layer containing as a fill material, finely comminuted Palladium adsorbed on to a polyester mesh at approximately 3g/m2, with an overall fabric weight of 36g/ m2. This device fully meets the requirements of the EC directive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Packages (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

L'invention porte sur un dispositif comprenant un emballage, sous la forme d'une enveloppe fabriquée à partir d'un matériau composite, imperméable à l'eau liquide mais perméable aux gaz, et contenant une formulation de matériau de remplissage quelconque choisie parmi un certain nombre de formulations de matériau de remplissage actuellement disponibles dans des inclusions d'élimination de l'oxygène pour emballage alimentaire du commerce, qui comprend, comme composant actif principal, soit du fer métallique finement fragmenté, soit de l'acide ascorbique, soit de l'ascorbate de calcium, soit de l'ascorbate de sodium, soit de l'érythorbate de sodium soit du palladium métallique finement fragmenté et qui est conçu pour créer et maintenir une atmosphère exempte d'oxygène dans l'espace de tête de bouteilles, de sachets ou de cartons d'aliments liquides aqueux et de boissons.
PCT/GB2012/051267 2011-06-03 2012-06-06 Système d'élimination d'oxygène actif WO2012164315A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1109380.4 2011-06-03
GB1109380.4A GB2491416B (en) 2011-06-03 2011-06-03 An active, oxygen scavenging, caps and closures packaging inclusion system, designed to operate in the presence of free water

Publications (2)

Publication Number Publication Date
WO2012164315A2 true WO2012164315A2 (fr) 2012-12-06
WO2012164315A3 WO2012164315A3 (fr) 2013-02-21

Family

ID=44343404

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2012/051267 WO2012164315A2 (fr) 2011-06-03 2012-06-06 Système d'élimination d'oxygène actif

Country Status (2)

Country Link
GB (1) GB2491416B (fr)
WO (1) WO2012164315A2 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758932A (en) * 1953-07-31 1956-08-14 Ben L Sarett Deoxygenating process and product
DE3004325A1 (de) * 1979-02-08 1980-08-14 Mitsubishi Gas Chemical Co Sauerstoffabsorptionsmittel enthaltender beutel und damit versehener behaelterverschluss
JPS57183965A (en) * 1981-05-07 1982-11-12 Mitsubishi Gas Chemical Co Package of deoxidizer
GB2101870B (en) * 1981-05-07 1985-07-10 Mitsubishi Gas Chemical Co Oxygen absorbent packaging
US4840280A (en) * 1988-01-28 1989-06-20 American Air Liquide Sealing cap for liquid food or beverage containers
GB2221692B (en) * 1988-07-15 1992-04-15 Courtaulds Films & Packaging Storage and packaging of plant material
JPH0474515A (ja) * 1990-07-13 1992-03-09 Toray Ind Inc 酸素吸収体
US6248690B1 (en) * 1992-05-26 2001-06-19 Multisorb Technologies, Inc. Oxygen absorber
DE69411860T2 (de) * 1993-11-19 1999-02-18 Mitsubishi Gas Chemical Co Sauerstoffabsorber-Einsatz für Behälterdeckel
JPH08217124A (ja) * 1995-02-08 1996-08-27 Mitsubishi Gas Chem Co Inc 脱酸素剤装着キャップ
GB0316708D0 (en) * 2003-07-16 2003-08-20 Dupont Teijin Films Us Ltd Polymeric film
US20050205840A1 (en) * 2003-10-03 2005-09-22 Farneth William E Oxygen scavenging compositions and methods of use
GB2429451B (en) * 2005-08-25 2008-03-26 Stanelco Rf Technologies Ltd Gas absorbing means for a container
US20070241308A1 (en) * 2006-04-13 2007-10-18 Julius Uradnisheck Composition for controlling exposure to oxygen

Non-Patent Citations (1)

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Title
None

Also Published As

Publication number Publication date
GB2491416A (en) 2012-12-05
GB2491416B (en) 2015-12-16
WO2012164315A3 (fr) 2013-02-21
GB201109380D0 (en) 2011-07-20

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