AU769924B2 - Method of separately packaging different kinds of food and package therefore - Google Patents

Method of separately packaging different kinds of food and package therefore Download PDF

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Publication number
AU769924B2
AU769924B2 AU57151/00A AU5715100A AU769924B2 AU 769924 B2 AU769924 B2 AU 769924B2 AU 57151/00 A AU57151/00 A AU 57151/00A AU 5715100 A AU5715100 A AU 5715100A AU 769924 B2 AU769924 B2 AU 769924B2
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AU
Australia
Prior art keywords
film structure
food
parts
compartments
film
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
AU57151/00A
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AU5715100A (en
Inventor
Cornelis Margaretha Theodorus Maria Bongers
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.)
Cryovac LLC
Original Assignee
Cryovac LLC
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
Priority claimed from NL1012346A external-priority patent/NL1012346C2/en
Application filed by Cryovac LLC filed Critical Cryovac LLC
Publication of AU5715100A publication Critical patent/AU5715100A/en
Assigned to CRYOVAC, INC. reassignment CRYOVAC, INC. Alteration of Name(s) of Applicant(s) under S113 Assignors: BONGERS, CORNELIS MARGARETHA THEODORUS MARIA
Application granted granted Critical
Publication of AU769924B2 publication Critical patent/AU769924B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/08Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being adapted to pierce the container or wrapper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, 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
    • B65D81/18Containers, 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
    • B65D81/20Containers, 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
    • B65D81/2069Containers, 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
    • B65D81/2076Containers, 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Packages (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Basic Packing Technique (AREA)

Abstract

In a working method for the separate packaging of different types of food in a single package, food is placed on a tray (3) with different compartments (5, 7, 9) open on one side, with one type of food being placed in each compartment. Subsequently a film structure film (11) is placed above the open sides of the compartments, with a part (21, 23, 25) of the film structure being placed above each compartment. Then the film structure (11) is fastened to the tray (3) around the openings of the compartments. To optimize the conditions in which the food is packaged for each type of food, the film structure (11) is comprised and/or processed such that the characteristics of the specified parts (21, 23, 25) of the film structure are different from each other. These circumstances can be improved even more by first determining, before comprising and/or processing the film structure (11), the characteristics of the food and then executing the composition and/or processing of the film structure (11) depending on the characteristics of the food.

Description

PAOPER\R1\200\Sq\5715 1-00 spei.d.-05112/03 -1- METHOD OF SEPARATELY PACKAGING DIFFERENT KINDS OF FOOD AND PACKAGE THEREFORE Field of the Invention The invention relates to a package comprising a tray with various compartments, and to a method for packaging various types of food in a single package.
Prior Art A package is disclosed in US 5,126,518. In this known package some parts are provided with a layer of microwave-reflective material and other parts not to effect a decreased flow of microwave energy to the foodstuffs in certain zones of the tray and an enhanced flow of microwave energy to the foodstuffs in the remainder of the tray.
Summary of the Invention The present invention seeks to provide a package in which individual circumstances can be created for the various types of food for preservation of the food in ooooo 20 the different compartments.
Accordingly, the present invention provides a package comprising a tray with S"various compartments in which different types of food are present, with one type of food 0: being present in each compartment, the compartments each having an opening and being closed off by a film structure that is sealed to the tray around the openings, wherein parts of the film structure which close off at least two of the compartments have different characteristics from each other, the different characteristics of these part including a difference in gas permeability and/or that a material is provided in and/or on at least one of these parts which reacts with a gas or gasses in the associated compartment or •compartments.
30 The present invention also provides a method for separately packaging various ooo• types of food in a single package, comprising: placing food on a tray having various compartments which are open on one side, P:\OPER\Rdl2003Sept\57151) sp ci.doc-05/12/03 -2with one type of food being placed in each compartment, then placing a film structure above the open sides of the compartments to thereby locate parts of the film structure above each compartment, followed by sealing the film structure to the tray around the openings of the compartments, wherein at least two of said parts of the film structure have difference characteristics from each other, and wherein the film structure is produced and/or processed such that the different characteristics of these parts include a different in gas permeability and/or that a material is provided in and/or on at least one of these parts which reacts with a gas or gasses in the associated compartment or compartments.
In accordance with the present invention at least two parts of the film structure have different characteristics from each other, and the different characteristics of these parts include a difference in gas permeability and/or that a material is provided in and/or on at least one of these parts which reacts with a gas or gasses in the associated compartment or compartments. This creates circumstances for the food in the package that are adapted per type of food. For example the space in. a compartment of the package can be fully sealed off from the outside environment by a gas-impermeable part of the film structure, or indeed interacting with the outside environment by way of a gas-permeable part of the film structure. For example in at least some of the parts of the film structure ooooo there can be perforations.
The term film structure can be understood to mean either one single film or a combination of various films on and/or beside each other, as well as film with a substance or a sticker on it.
Such packages are usually intended to allow consumers to quickly and easily prepare their own meals. Many or all of the necessary ingredients are present so that the consumer himself need not buy all the ingredients separately.
II~I In addition, the various characteristics can be acquired because the film structure is comprised of various films, for example a first film and a second film or a sticker that is present on parts of the first film, or two or more films beside each other with different S. 30 characteristics.
~It is noted that from US-A-4,935,252 a food package is known having a film structure comprising two films of which one is applied on the other and can be removed.
P:OPER\Rd1203\SpA57151-00 spci.do-05/12/03 -3- This package contains only one compartment. Furthermore, the differentiation of the film structure only relates to characteristics for preparation of the food and not for preservation.
It is noted that from European patent no. 0 293 794 B1 a working method is known in which various types of food are packaged in a single package. To improve the shelf life of the various types of food, in the known working method the various types of food are stored under different atmospheric conditions. Some types of food are preferably stored in an oxygen-low environment while others instead are better stored in an atmosphere that is rich in oxygen.
By utilizing a differentiated film structure according to the present invention in which the closure of each compartment can be coordinated with the type of food present in the compartment and the condition of the food, an optimal environment can be created for the food. In this way even in a package where no separate gas atmospheres are present in the compartments good circumstances can nonetheless be obtained for the food.
For example the material can be an active substance which is placed in and/or on the parts of the film structure. The substance might be a material that reacts with the oxygen in the compartment and thus removes the oxygen from the compartment and the food. This is desirable for those types of food that can be stored best in a low-oxygen atmosphere, for example for the protection of flavor and aroma against oxidation. Such substances are generally known, for example films that contain iron powder. The iron ooooo 20 powder rusts and oxygen is withdrawn from the food and the atmosphere in the compartment. Instead of iron powder ascorbic acid or sulphite can also be used as an oo.ooi S"active substance. These substances, too, oxidize and oxygen is withdrawn from the food and the atmosphere in the compartment. In addition, enzymatic-acting substances can be applied to the film, such as glucose oxidase or ethanol oxidase in which enzymes are catalysts for an oxygen-consuming reaction.
The substance can also be a material, for example, that absorbs oxygen, for oooo example a film of nylon polymer in which cobalt is present for a cobalt-catalyzed :oxidation of the nylon polymer. Instead of, or in addition to, oxygen-absorbing substances, the film or sticker can also contain CO 2 absorbing or emitting substances, or ethylene S 30 absorbing substances, ethanol emitting substances, moisture-absorbing substances, etc. All of these substances are generally known.
The material can also be formed by applying a film structure that is activated upon P:\OPER\Rdi\2003\Sp57151-00 spoci.doc-05/I2/03 -4radiation. By only radiating a number of the parts of the film structure, a film structure with varying characteristics is created. The material of the film structure should in this case be such that its characteristics can be changed by radiation or because certain substances in the material of the film structure can be activated by radiation. For example, as a result of radiation the material can be activated such that for example it obtains the characteristic that it reacts to oxygen and thus removes the oxygen from the compartment.
Such a film is known from European patent application EP-A 0 520 257. This known film contains a combination of an oxidizable organic compound and a metallic transference catalyst. Here oxidation of the organic compound can be initiated by radiation. This known package consists of only one compartment. Furthermore in this known package the entire film is irradiated, there is no differentiation of the film. The manner of radiating is known from the International patent application W099/21699. In this way food can be packaged both in a low-oxygen environment and a high-oxygen environment in a single package.
The invention also relates to a method for separately packaging various types of food in a single package. In this case, the film structure is produced and/or processed such that the different characteristics of said parts of the film structure include a difference in gas permeability and/or that a material is provided in and/or on at least one of these part which reacts with a gas or gasses in the associated compartment or compartments.
ooooo 20 Processing the film structure can comprise for example placing perforations in at least a number of the parts of the film structure, for example to allow the food to breathe.
•o.ooi S°The size of the perforations or the number of perforations can be adjusted depending on the I •degree of respiration of the food. A film with microperforations can also be used.
The production of the film structure can for example take place by using first one film and then on parts of that film placing a second film or sticker. The second film or sticker can for example contain the above-mentioned active substance or consist of one of o o0 the above-mentioned materials that influence radiation. Or the first film can be perforated :and the second film or sticker can be gas impermeable and seal offparts of the first film.
The film structure can also be produced for example by fastening two films to each 30 other, after which one of the films is locally removed. The one film can for example be perforated and the other film can be a gas-impermeable film that is placed in separate parts on the perforated film. Parts of the gas-impermeable film can for example be peeled off P:\OPER\Rd\2003\Spt\57151-.00 spei.do.-0112/03 the perforated film.
Yet another method of producing the film structure can for example be to place two or more films with different characteristics beside each other on the tray. For example the various films can contain an active substance, be perforated, be made of a radiationinfluencing material, or be gas impermeable. Possibly the films can first be connected with each other before being placed on the tray.
The production and/or processing of the film structure preferably takes place before food is placed on the tray. This decreases the chance that waste materials that may occur during the processing end up in the food.
Another favorable embodiment of the method according to the invention is characterized in that, before the film structure is produced and/or processed, the characteristics of the food are first determined, after which the production and/or processing of the film structure takes place according to the characteristics of the food.
Thus the conditions under which the food is stored can be better coordinated with the actual condition of the food. For example, if the respiration of the food is high, it may be desirable that the space in the compartment be more connected with the environment, such that a film structure with high permeability is, desirable.
Brief description of the drawings The invention will be elucidated more fully below on the basis of the non-limiting drawings in which embodiments of the working method and the package according to the invention are shown. In these drawings: Figure 1 shows an embodiment of the package according to the invention in a top view; Figure 2 shows the illustration in Figure 1 as a cross-section; S" Figure 3 shows a diagram of a first embodiment of the working method according to the invention; 30 Figure 4 shows a diagram of a second embodiment of the working method according to the invention; Figure 5 shows a first embodiment of the composition of the film structure; and P:\OPER\Rdi2003&pA~57151-0 spi.doc-0511203 -6- Figure 6 shows a second embodiment of the composition of the film structure.
Detailed description of the drawings In Figures 1 and 2 an embodiment of the package according to the invention is shown in a top view respectively cross-section along line A-A. The package 1 is comprised of a tray 3 that has various compartments 5, 7, and 9 that are open on top. The compartments are closed off by a film structure 11 that is fastened via sealing seams 13 to flanges 15 of the tray 3.
In the compartments 5, 7, 9 there are various types of food 17, 19. For each type of food an optimal closure of the compartment is present, because the film structure 11 is divided into various parts 21, 23, 25, that have different characteristics and each close off a compartment. For example part 21 and parts 23 and 25 form individual films 27 and 29 that are fastened side by side on the tray. Films 27 and 29 are for example transparent gasimpermeable films. To obtain optimal conditions in the compartments, for example, part 23 of the film 29 is provided with perforations 31 and another part 25 of the film 29 has a non-transparent sticker 33 that seals off the space in the compartment against light.
To further improve the conditions under which the various types of food are packaged, various preservative gases 35, 37 can be introduced into the compartments.
20 Figure 3 is a diagram showing a first embodiment of the working method according to the invention for packaging different types of food in a single package. Here in a separate production process 41 the film structure 43 is manufactured. In this production process 41 various films 45, 47 can be fastened on or on top of each other and/or the film structure can be processed. The fastening and/or the processing takes place in a machine 49.
The film structure 43 is then brought into a further production process 51. In this production process 51 trays 53 are filled with different types of food 55, 57. Then the film structure 43 is brought above the open side of the tray 53. Then the film structure 43 is 00 sealed on the tray 53 by melting the film structure 43 to the tray 53 with a heated sealing ~30 stamp 59.
"00 Figure 4 is a diagram showing a second embodiment of the working method according to the invention. Here the process of composing and/or processing the film P:\OPER\Rdt\2OO3\Sepi5715 1-00 speci.do-05/1203 -7structure is integrated into the process of filling the trays and the fastening of the film structure to the trays. After filling the compartments of the tray 53 with different types of food 55, 57 the condition of the food is measured. Depending on the conditions the machine 49 is set. In this manner for example the number of perforations per surface unit can be set. Thus the package can be even better coordinated with regard to the type of food being packaged.
The film structure can be comprised in various ways. Figure 5 shows a first embodiment of the composition of the film structure and placement on a tray. Here the two different films 61 and 63 form, side by side, the film structure 65, and each film seals off one or more compartments of the tray 67.
Figure 6 shows a second embodiment of the composition of the film structure.
Here two different films 71 and 73 are fastened to each other and form a film structure.
The film structure thus formed 75 possesses different parts 77 and 79 to seal off different compartments of the trays 81.
Although the invention is explained above on the basis of drawings, it should be stressed that the invention is in no way limited to the embodiments shown in the drawings.
The invention also extends to all embodiments deviating from the embodiments shown in the drawings within the context defined by the claims.
The reference to any prior art in this specification is not, and should not be taken as, an acknowledgment or any form of suggestion that that prior art forms part of the common general knowledge in Australia.
Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or Vi steps.
0o 0000

Claims (14)

1. Package comprising a tray with various compartments in which different types of food are present, with one type of food being present in each compartment, the compartments each having an opening and being closed off by a film structure that is sealed to the tray around the openings, wherein parts of the film structure which close off at least two of the compartments have different characteristics from each other, the different characteristics of these part including a difference in gas permeability and/or that a material is provided in and/or on at least one of these parts which reacts with a gas or gasses in the associated compartment or compartments.
2. Package according to claim 1, wherein there are perforations in at least one of said parts of the film structure.
3. Package according to claim 1 or 2, wherein the film structure is comprised of a first film and, on at least one of said parts, a second film or a sticker.
4. Package according to any one of claims 1 to 3, wherein the film structure is comprised of two or more adjacent films having different characteristics. S•
5. Method for separately packaging various types of food in a single package, comprising: placing food on a tray having various compartments which are open on one side, i with one type of food being placed in each compartment, then placing a film structure above the open sides of the compartments to thereby locate parts of the film structure above each compartment, followed by sealing the film structure to the tray around the openings of the :compartments, wherein at least two of said parts of the film structure have different characteristics from 30 each other, and wherein the film structure is produced and/or processed such that the .different characteristics of these parts include a difference in gas permeability and/or that a material is provided in and/or on at least one of these parts which reacts with a gas or P:,OPER\RdI2003\Scp\57151 -00 spci.doc-05/II203 -9- gasses in the associated compartment or compartments.
6. Method according to claim 5, wherein at least one of said parts of the film structure is irradiated.
7. Method according to claim 5 or 6, wherein perforations are made in at least one of said parts of the film structure.
8. Method according to any one of claims 5 to 7, wherein the film structure is produced by taking a first film and, on at least one of said parts, placing a second film or sticker thereon.
9. Method according to any one of claims 5 to 8, wherein the film structure is produced by fastening two films on each other, after which one of the films is removed locally.
Method according to any one of claims 5 to 9, wherein the film structure is produced of two or more films with different characteristics which are adjacent to each other.
11. Method according to any one of claims 5 to 10, wherein the production and/or •processing of the film structure takes place before food is placed on the tray. 0oo
12. Method according to any one of claims 5 to 11, wherein before the film structure is produced and/or processed, characteristics of the food are first determined, after which production and /or processing of the film structure takes place in accordance with the o*oo *characteristics of the food. 0* o
13. Package comprising a tray with various compartments in which different types of 30 food are present substantially as hereinbefore described with reference to Figures 1 to 4.
14. Method for separately packaging various types of food in a single package 14. Method for separately packaging various types of food in a single package P;\OPER\Rdt\2003\Sqt\5715 1-00 sp cio-05/12/03 substantially as hereinbefore described with reference to Figures 3 and 4. DATED this 5th day of December, 2003 CRYOVAC, INC. by DAVIES COLLISON CAVE Patent Attorneys for the Applicant(s) C C@ 6 C S S SSO C OSS@** S S 6*S S ee C 0 *06 6* *e 0 S e.g. e eat, 0e S S S. S@ SC S SC C C C* 0@0S S SeeS
AU57151/00A 1999-06-16 2000-06-16 Method of separately packaging different kinds of food and package therefore Ceased AU769924B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1012346A NL1012346C2 (en) 1999-01-15 1999-06-16 Packing method for foodstuff under atmosphere, involves performing airtight closing of tray after foil has been sealed along peripheral portion to tray
NL1012346 1999-06-16
PCT/NL2000/000423 WO2001012523A1 (en) 1999-06-16 2000-06-16 Method of separately packaging different kinds of food and package therefore

Publications (2)

Publication Number Publication Date
AU5715100A AU5715100A (en) 2001-03-13
AU769924B2 true AU769924B2 (en) 2004-02-12

Family

ID=19769391

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57151/00A Ceased AU769924B2 (en) 1999-06-16 2000-06-16 Method of separately packaging different kinds of food and package therefore

Country Status (7)

Country Link
EP (1) EP1194350B1 (en)
AT (1) ATE288391T1 (en)
AU (1) AU769924B2 (en)
CA (1) CA2377538C (en)
DE (1) DE60017908D1 (en)
NZ (1) NZ516165A (en)
WO (1) WO2001012523A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2873992B1 (en) * 2004-08-05 2007-10-12 Perle Du Sud PROCESS AND DEVICE FOR PACKAGING FRESH VEGETABLE PRODUCTS
DE102007013698A1 (en) * 2006-12-22 2008-06-26 Multivac Sepp Haggenmüller Gmbh & Co. Kg packaging machine
EP2576354A1 (en) * 2010-06-01 2013-04-10 Perfo Knowledgy BV Package for preserving respiring produce and apparatus for making the same
FR3020754A1 (en) * 2014-05-06 2015-11-13 Jean Jacques Grand FROZEN OR FRESH MEAL TRAYS CAN BE DEFROSTED AND REHEATED IN A SINGLE PASS IN THE MICROWAVE OVEN SO THAT EACH ELEMENT OF THE MEAL IS AT THE RIGHT CONSUMPTION TEMPERATURE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520257A2 (en) * 1991-06-27 1992-12-30 W.R. Grace & Co.-Conn. Methods and compositions for oxygen scavenging
EP0960825A2 (en) * 1998-05-28 1999-12-01 Becton, Dickinson and Company Blister-type device for transporting biological or chemical samples

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Publication number Priority date Publication date Assignee Title
US4777782A (en) 1987-06-05 1988-10-18 Mahaffy & Harder Engineering Co. Apparatus and methods for making differentially-conditioned package pairs
US4935252A (en) * 1988-06-02 1990-06-19 E. I. Du Pont De Nemours And Company Microwave oven preparation of waffle
US5126518A (en) * 1989-11-28 1992-06-30 Beckett Industries Inc. Microwave cooking container cover
DE4304337A1 (en) * 1993-02-13 1994-08-25 Gea Finnah Gmbh Method and device for filling and closing a double chamber cup made of plastic
WO1998023443A2 (en) * 1996-11-25 1998-06-04 Cryovac, Inc. Package having a multiple-film lid comprising a gas-impermeable film peelably adhered to a gas-permeable film

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520257A2 (en) * 1991-06-27 1992-12-30 W.R. Grace & Co.-Conn. Methods and compositions for oxygen scavenging
EP0960825A2 (en) * 1998-05-28 1999-12-01 Becton, Dickinson and Company Blister-type device for transporting biological or chemical samples

Also Published As

Publication number Publication date
EP1194350A1 (en) 2002-04-10
CA2377538C (en) 2008-12-23
NZ516165A (en) 2004-01-30
ATE288391T1 (en) 2005-02-15
WO2001012523A1 (en) 2001-02-22
AU5715100A (en) 2001-03-13
EP1194350B1 (en) 2005-02-02
DE60017908D1 (en) 2005-03-10
CA2377538A1 (en) 2001-02-22

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