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WO1990001005A1 - Conditionnement d'aliments avec des gaz entre un film tendu, le couvercle et l'aliment - Google Patents

Conditionnement d'aliments avec des gaz entre un film tendu, le couvercle et l'aliment Download PDF

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Publication number
WO1990001005A1
WO1990001005A1 PCT/AU1989/000308 AU8900308W WO9001005A1 WO 1990001005 A1 WO1990001005 A1 WO 1990001005A1 AU 8900308 W AU8900308 W AU 8900308W WO 9001005 A1 WO9001005 A1 WO 9001005A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
web
goods
space
packaging
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/AU1989/000308
Other languages
English (en)
Inventor
Anthony James Murray Garwood
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.)
Seawell Corp NV
Original Assignee
Seawell Corp NV
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 Seawell Corp NV filed Critical Seawell Corp NV
Publication of WO1990001005A1 publication Critical patent/WO1990001005A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2069—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
    • B65D81/2076—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container
    • 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/388—Materials used for their gas-permeability

Definitions

  • This invention relates to an improvement of the invention disclosed in our International Application No. PCT/AU87/00297 and particularly but not exclusively to improved packaging where the goods therein such as fresh meats and/or other like perishable goods are covered with a web of plastics material and wherein the packaging contains a gas to enhance the keeping properties of the goods packaged therein.
  • the subject matter of Application No. PCT/AU87/00297 is incorporated herein by this reference.
  • Description of the Prior Art Skin wrapping/packaging is a technique where goods such as meat can be packaged and where substantially all of the air and/or gases which surround the meat or other goods is evacuated.
  • Figures 1 and 2 show a form of plastics material packaging which has been proposed hitherto and which is generally disclosed in PCT Patent Application PCT/AU86/00339 in the name A.J.M. Garwood and Garwood Limited.
  • the subject matter of PCT/AU86/00339 is incorporated herein by reference.
  • a plastics material base 1 with goods 3 such as fresh meat, fish, poultry and/or vegetables packaged therein.
  • the base 1 has a peripheral lip 5 and the upper surface of the goods 3 is shown lower than the lip 5.
  • a skin wrapping plastics material 7 is fitted over the goods 3 and is bonded to the peripheral lip 5 as by welding or the like bonding techniques.
  • the skin wrapping 7 extends downwardly from the lip 5 and closely surrounds the upper surface of the goods 3 so that substantially all air and/or gases are excluded from the space between the base 1 and the skin 7.
  • a plastics material lid 9 is provided over the skin 7 and is bonded to the base 1 around the peripheral lip 5.
  • a space 11 is provided between the lid 9 and the skin 7.
  • the space 11 can contain a gas which will assist the keeping of the packaged goods 3.
  • the gas can be either, or a combination of gas such as 0_, N-, C0 2 which can enhance the colour and keeping qualities of the packaged goods 3 such as red meats.
  • the plastics material for the base 1, the skin 7 can be clear plastics materials.
  • the base 1 is PVC
  • the skin 7 is a co-extruded plastic such as PE/EVA
  • the lid 9 is a plastics material such as PVC/PE.
  • the base 1, the skin 7 and/or the lid 9 may be multi-layered webs where selective plastics materials are employed to enable suitable bonding as by heat bonding caused by, for example, a heat bank or by RF welding, and to enable selective exclusion and/or transmission of gases through the various webs and particularly skin web 7.
  • the present invention attempts to provide an improved packaging.
  • a plastics material packaging for meat or other like goods comprising, a base of plastics material, a plastics material web overlaying the meat or other like goods on said base, and a lid of plastics material fitted over said plastics material web and bonded relative to said base around the periphery of said base, there being a first space between said lid and said plastics material web, a desired gas in said first space, said skin being permeable to allow said gas in to permeate therethrough to enhance the keeping qualities of said goods, said packaging having said plastics material web held bonded, in tension, overlaying but not touching said meat or other like goods.
  • a method for producing a packaging of the above type comprising, providing a plastics material base, providing meat or other like goods on said base, providing a plastics material gas permeable web over said meat or other like goods, bonding said web to said base around the periphery of said base, placing a lid of plastics material over said web and bonding it whilst under tension relative to said base so after bonding tension will remain in said web, there being a first space between said lid and said skin, providing a desired gas in said first space so that said gas can permeate into the other of the spaces, said web being held bonded, in tension, overlaying but not touching said meat or other like goods.
  • the desired gas is about 80% oxygen and about 20% carbon dioxide for red meats. If desired there can be a desired gas under said web and this may comprise substantially 100% carbon dioxide. However, other gases to enhance the keeping properties of the packaged goods could be used if desired.
  • Figure 1 is a top perspective view of one known plastics material packaging
  • Figure 2 is a cross-sectional view taken vertically through the packaging shown in Figure 1;
  • Figure 3 is a view similar to that of Figure 2 but showing an example of one preferred embodiment of improved packaging according to the present invention
  • Figure 4 is a detailed close up view of a side edge of the base according to an embodiment of the invention
  • Figure 5 is a detailed close up view, similar to that of Figure 4, showing how the web can be stretched prior to bonding.
  • the base 1 has a second lip 13 which is displaced downwardly closer to the bottom 15 of the base 1 than the lip 5.
  • the second lip 13 is parallel with lip 5.
  • the web 7 is bonded to the second lip 13 as shown by numeral 17.
  • the bonding is preferably by a . heat bonding which can be performed by using a heat bank type bonding member.
  • the lid 9 is bonded completely around the perimeter of the base 5 by bonding at the region 19. This bonding also is to the web 7 which overlays the lip 5.
  • the web 7 is stretched so that it is under tension prior to bonding so that after bonding it is under tension and held taught across the bonding but not touching the upper surface of the goods 3.
  • the base 1 is of PVC/PE, the web 7 of a
  • the LLDPE material and the lid 9 is of PVC/PE.
  • the base 1 can be 200-600 microns thick.
  • the web 7 can be 10-100 microns thick and the lid 9 50-150 microns thick.
  • the web 7 may extend across the package, as shown in Figure 3, above the goods 3 without contacting the goods 3.
  • the web 7 is gas permeable and divides the packaging into a first space Si between the lid 9 and the web 7 and a second space S2 between the web 7 and the bottom 15 of the base 1.
  • a first gas is provided in the space Si and a second gas is provided in the space S2.
  • the first gas may be about 20% carbon dioxide and about 80% oxygen for red meats
  • the second gas may be substantially 100% carbon dioxide or it may comprise atmospheric air although this is not preferable owing to the anticipated short life of packaged goods such as red meat in such a gas environment.
  • the gas in the space Si could for example be 100% oxygen
  • the gas in the space S2 could for example be 50% carbon dioxide and 50% nitrogen.
  • Other gases could be suitably chosen for their keeping qualities of the packaged goods. The chosen gases enhance the keeping qualities of the packaged goods and, the keeping qualities are further enhanced ' by the provision of the two different types of gases and the interchange of gases provided by gas permeable web 7.
  • oxygen contained in the space Si is able to permeate through the web 7 into the space S2 which maintains the colouring of the meat 3 contained in the space S2.
  • Carbon dioxide in the space S2 permeates through the web 7 into the space SI.
  • This interchange of gas can take place over the storage life of the package to thereby change the environment in which the goods 3 are packaged to thereby enhance the keeping qualities of the packaged goods and maintain the colour of the goods.
  • the amount of gas which is exchanged through the web 7 and the amount of time which passes prior to gas exchange can be determined by suitable selection of the permeability of the web 7.
  • the permeability of the web 7 can be selected by choosing a suitable gauge for the web 7 or in any other suitable manner.
  • the permeability is chosen so that oxygen does not pass through the web 7 for a number of days and thereafter begins to pass through the web 7 so as to assist in maintaining the colouring of the meat after that time period has expired.
  • the gas pressure in the space S2 may decrease.
  • the decrease in pressure of the carbon dioxide in the space S2 may also occur due to the carbon dioxide dissolving due to contact with the surface of the goods 3 or any other moisture in the space S2.
  • the reduction in pressure in the space S2 creates a partial vacuum in the space S2 which tends to draw the web 7 downwardly towards the goods 3.
  • the tension in the web 7 may change slightly after a period of time, but the relationship is such that there will be a substantially, continuously applied tension in the web 7.
  • FIG. 4 there is shown a close-up detail of the lip region of the packing shown in Figure 3.
  • lip 5 is generally horizontally extending and parallel with the bottom 15 of the base 1.
  • the upper side wall 27 between lip 13 and lip 5 is generally vertical.
  • the lower side wall 28 below the lip 13 is generally vertical.
  • the depth of the packaging below lip 13 be changeable at the time of making the base 1 to compensate for different thicknesses of goods 3 which are to be packaged within the packaging. Accordingly, depth 29 can be varied and depth 31 also can be arranged to be variable. The requirement is to provide a base 1 where the upper surface of the goods 3 will be below the stretched web 7.
  • Figure 5 shows one example of how the web 7 can be • stretched prior to bonding.
  • the web 7 is held around the peripheral lip 5 by a die part (not shown) and wherein a platen 33 with downwardly extending flexible fingers or webs 35 is pushed downwardly into space Si, thus stretching the web 7, whereupon it can be bonded to the lip 13.
  • the webs 35 have rounded forward ends 37 to assist movement of the web 7 into the desired position without tearing of the web 7.
  • Heat bonding or other bonding can be effected by a bonding member which can pass between the web 35 and the side walls 27 to permit bonding to lip 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Vacuum Packaging (AREA)

Abstract

Sont décrits un emballage et un procédé améliorés. L'emballage comprend une base (1), un article tel que de la viande rouge (3) emballée dans la base (1), un couvercle (9) recouvrant la base (1), ainsi qu'une membrane perméable au gaz (7) tendue et collée tendue pour conserver les forces qui la tendent, de sorte qu'elle est fixée à la base (1) au-dessus de la viande rouge emballée (3). Un premier espace (S1) est ménagé au-dessus de la membrane (7) et sous le couvercle (9). Un second espace (S2) est ménagé sous la membrane dans la base (1). La hauteur de la viande (3) atteint un niveau inférieur à la membrane (7), de sorte que celle-ci ne touche pas le dessus de la viande (3). Un gaz désiré, tel que 80 % d'O2 et 20 % CO2, peut être introduit dans l'espace S1, alors qu'un autre gaz désiré peut être introduit dans l'espace S2. Il se produit alors un échange de gaz à travers la membrane perméable au gaz (7), échange qui agit conjointement avec la viande (3) de façon à améliorer ses propriétés de conservation.
PCT/AU1989/000308 1988-07-21 1989-07-21 Conditionnement d'aliments avec des gaz entre un film tendu, le couvercle et l'aliment Ceased WO1990001005A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI9401 1988-07-21
AUPI940188 1988-07-21

Publications (1)

Publication Number Publication Date
WO1990001005A1 true WO1990001005A1 (fr) 1990-02-08

Family

ID=3773230

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1989/000308 Ceased WO1990001005A1 (fr) 1988-07-21 1989-07-21 Conditionnement d'aliments avec des gaz entre un film tendu, le couvercle et l'aliment

Country Status (1)

Country Link
WO (1) WO1990001005A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251540A (en) * 1991-01-08 1992-07-15 United Biscuits Ltd "Packaging and preserving food"
WO1996008424A1 (fr) * 1994-09-14 1996-03-21 Sealed Air (Nz) Limited Conditionnement de la viande et d'autres produits alimentaires
US5560182A (en) * 1990-01-19 1996-10-01 Seawell North America Inc. Packaging method
WO1998023500A1 (fr) * 1996-11-25 1998-06-04 Cryovac, Inc. Emballage dote d'un couvercle a deux pellicules comprenant une pellicule impermeable aux gaz et une pellicule permeable aux gaz et decollable
AU702738B2 (en) * 1994-06-30 1999-03-04 Cryovac, Inc. Barrier package for fresh meat products
US6033758A (en) * 1995-06-06 2000-03-07 Cryovac, Inc. Laminate having a coextruded, multilayer film which delaminates and package made therefrom
DE20012495U1 (de) * 2000-07-19 2001-11-29 Bekuplast Transport- und Lagerbehälter aus Kunststoff, 49824 Ringe Transportbehälter
US7141256B2 (en) 1995-06-06 2006-11-28 Cryovac Inc. Packaging film having permeable patch covering an opening in the film and package made therefrom
DE102018114308A1 (de) * 2018-06-14 2019-12-19 Multivac Sepp Haggenmüller Se & Co. Kg Verfahren zum verpacken von produkten

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5275669A (en) * 1968-04-03 1970-10-08 Unilever Limited Food package
AU5739986A (en) * 1985-05-09 1986-11-13 Garwood Packaging Pty. Ltd. Bag in a box for packaging foodstuff in inert atmosphere
WO1987002965A1 (fr) * 1985-11-14 1987-05-21 Garwood Ltd. Emballage
WO1988000907A1 (fr) * 1986-08-04 1988-02-11 Garwood Limited Emballage
WO1988001592A1 (fr) * 1986-09-03 1988-03-10 Garwood Limited Emballage de denrees alimentaires avec un gaz retenu entre une pellicule sous tension et le couvercle
AU8256287A (en) * 1986-12-23 1988-06-23 Garwood Ltd. Improved packaging
WO1989003789A1 (fr) * 1987-10-29 1989-05-05 Garwood Limited Emballage ameliore

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5275669A (en) * 1968-04-03 1970-10-08 Unilever Limited Food package
AU5739986A (en) * 1985-05-09 1986-11-13 Garwood Packaging Pty. Ltd. Bag in a box for packaging foodstuff in inert atmosphere
WO1987002965A1 (fr) * 1985-11-14 1987-05-21 Garwood Ltd. Emballage
WO1988000907A1 (fr) * 1986-08-04 1988-02-11 Garwood Limited Emballage
WO1988001592A1 (fr) * 1986-09-03 1988-03-10 Garwood Limited Emballage de denrees alimentaires avec un gaz retenu entre une pellicule sous tension et le couvercle
AU8256287A (en) * 1986-12-23 1988-06-23 Garwood Ltd. Improved packaging
WO1989003789A1 (fr) * 1987-10-29 1989-05-05 Garwood Limited Emballage ameliore

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560182A (en) * 1990-01-19 1996-10-01 Seawell North America Inc. Packaging method
GB2251540B (en) * 1991-01-08 1993-11-24 United Biscuits Ltd Improvements in and relating to preserving food products
GB2251540A (en) * 1991-01-08 1992-07-15 United Biscuits Ltd "Packaging and preserving food"
AU702738B2 (en) * 1994-06-30 1999-03-04 Cryovac, Inc. Barrier package for fresh meat products
US5916613A (en) * 1994-06-30 1999-06-29 Cryovac, Inc. Barrier package for fresh meat products
US6447826B1 (en) 1994-09-14 2002-09-10 Sealed Air (Nz) Limited Packaging for meat and foodstuff
AU686453B2 (en) * 1994-09-14 1998-02-05 Meat Research Corporation Packaging for meat and other foodstuff
WO1996008424A1 (fr) * 1994-09-14 1996-03-21 Sealed Air (Nz) Limited Conditionnement de la viande et d'autres produits alimentaires
US6033758A (en) * 1995-06-06 2000-03-07 Cryovac, Inc. Laminate having a coextruded, multilayer film which delaminates and package made therefrom
US6248380B1 (en) 1995-06-06 2001-06-19 Cryovac, Inc. Package having a dual-film lid comprising a gas-impermeable film and a delaminatable, gas-permeable film
US7141256B2 (en) 1995-06-06 2006-11-28 Cryovac Inc. Packaging film having permeable patch covering an opening in the film and package made therefrom
WO1998023500A1 (fr) * 1996-11-25 1998-06-04 Cryovac, Inc. Emballage dote d'un couvercle a deux pellicules comprenant une pellicule impermeable aux gaz et une pellicule permeable aux gaz et decollable
AU719946B2 (en) * 1996-11-25 2000-05-18 Cryovac, Inc. Package having a dual-film lid comprising a gas-impermeable film and a delaminatable, gas-permeable film
CN1094872C (zh) * 1996-11-25 2002-11-27 克里奥瓦克公司 双层薄膜覆盖物包装件及其包装方法
DE20012495U1 (de) * 2000-07-19 2001-11-29 Bekuplast Transport- und Lagerbehälter aus Kunststoff, 49824 Ringe Transportbehälter
DE102018114308A1 (de) * 2018-06-14 2019-12-19 Multivac Sepp Haggenmüller Se & Co. Kg Verfahren zum verpacken von produkten

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