WO1988007472A1 - Method for the production of a food package - Google Patents

Method for the production of a food package Download PDF

Info

Publication number
WO1988007472A1
WO1988007472A1 PCT/FI1988/000041 FI8800041W WO8807472A1 WO 1988007472 A1 WO1988007472 A1 WO 1988007472A1 FI 8800041 W FI8800041 W FI 8800041W WO 8807472 A1 WO8807472 A1 WO 8807472A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
supporting structure
films
package
combination
Prior art date
Application number
PCT/FI1988/000041
Other languages
French (fr)
Inventor
Heikki Uusitalo
Original Assignee
Amerplast Oy
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 FI871348A external-priority patent/FI871348A0/en
Application filed by Amerplast Oy filed Critical Amerplast Oy
Publication of WO1988007472A1 publication Critical patent/WO1988007472A1/en
Priority to NO885264A priority Critical patent/NO885264D0/en
Priority to DK657388A priority patent/DK657388D0/en

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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B65D25/16—Loose, or loosely-attached, linings
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/343—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated in a conventional oven, e.g. a gas or electric resistance oven
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups

Definitions

  • the present invention relates to a method for the pro ⁇ duction of a food package as set forth in the preamble of claim 1.
  • a food package produced by the application of a method of the invention is intended to be used especially as a package for so-called processed foods.
  • An increasing tendency in modern foodstuffs industry is to supply the consumers with foodstuffs processed as far as pos ⁇ sible.
  • Critical factors include food package manufacturing technique, package properties and simpli ⁇ city in use.
  • a food package especially a food package containing processed food: cold resistance (deep-freezing quality) , heat resistance (conventional oven, microwave oven) , storage and handling properties, mechanical strength and qualities having to do with actual serving and eat ⁇ ing.
  • the requirements set for materials used especial ⁇ ly as- plastic films or sheets in food packages include e.g. film joining properties (e.g. hot-sealing proper ⁇ ties), possibility of film shaping (e.g. deep drawing) etc.
  • the materials used in food packages in addition to plastic films should be capable of providing a ne ⁇ cessary mechanical strength.
  • the package space confined by plastic films should be capable of withstanding treatments improving the shelf life of a foodstuff, such as e.g. protective gas filling, pas ⁇ teurization or sterilization.
  • Publication WO 86/04880 discloses a package, comprising a combination of a first film and a supporting struc ⁇ ture joined together by a deep-drawing technique as well as a second film attached to the combination and serving as a cover.
  • the supporting structure is not an independently shape-retaining, sufficiently rigid package space forming structure, but said first film joins the supporting structure wall portions and floor together for an assembly in the shape of a package space during the building of such combination.
  • the second film is attached to the combination after it has been assembled.
  • An object of this invention is to introduce a method for the production of a food package meeting the above requirements, mainly characterized by the following steps:
  • the package space of a combination formed by the first and second films can be subjected to at least one treatment, such as a protective gas treatment, pasteu ⁇ rization or sterilization prior to joining the combi ⁇ nation to a supporting structure, whereby the support ⁇ ing structure is not damaged during such treatment.
  • at least one treatment such as a protective gas treatment, pasteu ⁇ rization or sterilization prior to joining the combi ⁇ nation to a supporting structure, whereby the support ⁇ ing structure is not damaged during such treatment.
  • a supporting structure as ell as a combination formed by the first and second films be joined together at an edge joint between said films.
  • fig. 1 is a so-called exploded view of one embodiment of a package of the invention
  • fig. 2 is a cross-sectional view of the package shown in fig. 1 including further two partial enlarge ⁇ ments of the package walls,
  • fig. 3 is a perspective view of an embodiment of a package of the invention, whose package space comprises two compartments for different food products, and
  • fig. 4 is a diagrammatic sketch of -a packing sequence.
  • reference numeral 1 designates a first film, made of a plastics material.
  • This film is shaped, preferably deep drawn, so as to include at least one compartment 1 * for a food product contained in the package.
  • the shaped portion, its flanges are provided with a lap 1" as part of the first film.
  • the first film 1 is manufactured and shaped during the first step of food package production.
  • the second step comprises placing a food product E inside compart ⁇ ment 1 * .
  • compartment 1 ' is sealed with a second film 2, serving as a cover film and made of a plastics material, or the sealing is effected with some other cover material.
  • the sealing is effect ⁇ ed between the edge portion 2" of second film 2 and the lap 1" of first film 1 for- providing an edge joint, shown particularly in figs. 2 and 3.
  • the central port ⁇ ion 2' of second film 2 can be flat, as in fig. 1, or it can be more or less shaped e.g. by deep drawing the same way as first film 1.
  • said first 1 and second 2 films provide a combination in the form of a sealed elastic package whose interior comprises a package space 4 for a food product/food products E.
  • this combination is preferably subjected to various types of treatments, such as protective-gas filling.
  • treatments such as protective-gas filling.
  • One possibility here is e.g. vacuum filling technique. This is possible for the reason that, at this stage, the combination can be deflated since the plastic films are resilient and possible deformations at this time bear no significance as to the final qualities of a package.
  • the air can be exhausted from package space 4 and vacuum filling technique can be applied to fill said package space 4 with an inert protective gas.
  • Combination 1 , 2 returns to its original shape after the vacuum filling.
  • Similar treatments include pas ⁇ teurization and sterilization for improving the shelf life of a food product contained in package space 4.
  • These treatments can be preferably effected just at this stage as combination 1 , 2 is still in a resilient condition and the treatment is not restricted by the properties of a supporting structure, nor is the sup ⁇ porting structure damaged as a result of such treatment.
  • the combination in the form of an elastic package consisting of first 1 and second 2 films is placed inside the shaped portion 5' of a supporting structure 5 in a manner that the shaped first film portion fits into the corresponding portion of supporting structure 5.
  • the shaped supporting struc ⁇ ture portion 5' and said shaped compartment 1 * of first film 1 are substantially of equal size, so the lap 1" of film 1 lays itself upon a shoulder, preferably a flange 5" surrounding the shaped portion of supporting structure 5.
  • join ⁇ ing between the combination formed by first 1 and sec ⁇ ond 2 films and supporting structure joint 6, especial ⁇ ly in fig. 2 .
  • Dot-shaped and/or line-shaped junctions 7 can be provided on the shaped supporting structure portion 5' between supporting structure 5 and first film 1.
  • said films 1 and 2 can be optionally made of various materials. Particularly, if hot sealing is used for a joint 3, the films will be selected in a manner that films 1 and 2 join together and film 1 joins also to the supporting structure. If one of the above joints is effected by gluing, there will be more possibilities of selecting the films.
  • a bottom corner of the food package is shown enlarged in detail B of fig. 2. This illustrates dot-shaped or line-shaped junctions 7 between supporting struc ⁇ ture 5 and first film 1 for effecting a possibly ne ⁇ cessary attachment of irst film 1 to the shaped port ⁇ ion 5' of supporting structure 5.
  • the supporting structure 5 can be fabricated by using cardboard, paperboard or plastics.
  • the supporting structure can be a pre-made cardboard box or tray whose material comprises cardboard or paperboard, possibly coated with a hot-sealing layer of plastics (PET) .
  • PET hot-sealing layer of plastics
  • the supporting structure can also be obtained by using an erectable package which is assembled to its final form prior to fitting a combination formed by films 1 and 2 inside the supporting structure. The assembly is effected by applying a gluing, clamp-hook or a like technique from cardboard or paperboard.
  • the support ⁇ ing structure can also be shaped by press moulding or deep drawing.
  • the supporting structure material can be selected and its shaping effected according to the intended use of a food package.
  • An essential feature of supporting structure 5 is to provide a necessary mechanical protection for a possibly processed food product placed inside the combination formed by films 1 and 2 and to allow the utilization of " such support- ing structure at the time when a food package is used e.g. as a plate or other base.
  • the supporting struc ⁇ ture need not possess liquid or gas tightness qualities.
  • film 2 can be provided with a tear-off indication 8, whereat the removal of a cover-film serving second film 2 can be initiated for consuming the food products.
  • a combination formed by films 1 and 2 is divided into two compartments by means of a partition 9.
  • the shaped portion of film 1 includes a folding lap, extending from the floor up to cover film 2 and joined thereto, said partition 9 being fitted therebetween. It is obvious that the package can include even more compartments whenever necessary.
  • Preferable applications may include various pies, such as meat and Karelian pies, pizzas, ready-made food portions, processed baking dishes, soups etc., either deep-frozen or fresh.
  • Food products can be pre-cooked or uncooked as the case may be.
  • films 1 and 2 especially for food packages intended for microwave ovens and/or conventional ovens can be the following combined film structure.
  • said films 1 and 2 can be provided with amorphous, crystallizable polyester (PET) . Since this type of plastic is well sealable with heat and deep drawable, it will soften and go shapeless by it ⁇ self at a temperature of 100°C to 130 C.
  • PET amorphous, crystallizable polyester
  • the result will be a composite film capable of resisting high temperatures (150 C to 250°C) since during the thermal treatment of a food package the polyester crystallizes on the surface of a carrier layer as a high temperature resistant film.
  • the above layers can be joined together by laminating, co- extruding or coating.
  • the surfaces of carrier films can be treated with a heat-resistant lacquer, if ne ⁇ cessary.
  • Fig. 4 illustrates schematically the method sequence, the reference numerals corresponding to those used in figs. 1 to 3.

Abstract

A food package comprises a shaped, preferably deep-drawn first film (1) which includes at least one compartment (1') for a food product contained in the package. It further comprises a second film (2) serving as a cover film, said films (1 and 2) being joined together for providing a package space (4) for a food product (E), said space being sealed with a flange joint (3), and a supporting structure (5) inside which said first film (1) is substantially fitted and to which is attached a combination formed by first (1) and second (2) films.

Description

Method for the production of a food package
The present invention relates to a method for the pro¬ duction of a food package as set forth in the preamble of claim 1.
A food package produced by the application of a method of the invention is intended to be used especially as a package for so-called processed foods. An increasing tendency in modern foodstuffs industry is to supply the consumers with foodstuffs processed as far as pos¬ sible. Thus, the requirements set for a food package are essential. Critical factors include food package manufacturing technique, package properties and simpli¬ city in use.
Generally speaking, the following qualities are required of a food package, especially a food package containing processed food: cold resistance (deep-freezing quality) , heat resistance (conventional oven, microwave oven) , storage and handling properties, mechanical strength and qualities having to do with actual serving and eat¬ ing. The requirements set for materials used especial¬ ly as- plastic films or sheets in food packages include e.g. film joining properties (e.g. hot-sealing proper¬ ties), possibility of film shaping (e.g. deep drawing) etc. The materials used in food packages in addition to plastic films should be capable of providing a ne¬ cessary mechanical strength. Furthermore, the package space confined by plastic films should be capable of withstanding treatments improving the shelf life of a foodstuff, such as e.g. protective gas filling, pas¬ teurization or sterilization.
Publication WO 86/04880 discloses a package, comprising a combination of a first film and a supporting struc¬ ture joined together by a deep-drawing technique as well as a second film attached to the combination and serving as a cover. The supporting structure is not an independently shape-retaining, sufficiently rigid package space forming structure, but said first film joins the supporting structure wall portions and floor together for an assembly in the shape of a package space during the building of such combination. The second film is attached to the combination after it has been assembled.
An object of this invention is to introduce a method for the production of a food package meeting the above requirements, mainly characterized by the following steps:
A) shaping a first film,
B) placing a food product inside a compart¬ ment formed by the first film,
C) sealing the compartment with a second film or the like serving as a cover film,
D) fabricating a supporting structure com¬ prising a shaped portion,
E) placing a combination formed by the first and second films in contact with the sup¬ porting structure in a manner that the first film fits into the shaped portion of said supporting structure, and
F) joining the combination and the support¬ ing structure together.
The above steps make it possible to apply a preferred manufacturing technique by using prior known deep-draw¬ ing packers as well as provide a highly practical pack- age .
According to one preferred application of the method, the package space of a combination formed by the first and second films can be subjected to at least one treatment, such as a protective gas treatment, pasteu¬ rization or sterilization prior to joining the combi¬ nation to a supporting structure, whereby the support¬ ing structure is not damaged during such treatment.
It is preferred that a supporting structure as ell as a combination formed by the first and second films be joined together at an edge joint between said films. In addition, it possible to join the supporting struc¬ ture and the first film together by using dot-shaped and/or line-shaped junctions. Certain functional" ad¬ vantages are gained by these solutions.
Other characterizing features of the invention are set forth in the annexed subclaims.
The invention is described in more detail in the fol¬ lowing specification, wherein reference is made to the embodiments shown in the accompanying drawings. In the drawings
fig. 1 is a so-called exploded view of one embodiment of a package of the invention,
fig. 2 is a cross-sectional view of the package shown in fig. 1 including further two partial enlarge¬ ments of the package walls,
fig. 3 is a perspective view of an embodiment of a package of the invention, whose package space comprises two compartments for different food products, and
fig. 4 is a diagrammatic sketch of -a packing sequence.
Referring to fig. 1, reference numeral 1 designates a first film, made of a plastics material. This film is shaped, preferably deep drawn, so as to include at least one compartment 1 * for a food product contained in the package. The shaped portion, its flanges are provided with a lap 1" as part of the first film. The first film 1 is manufactured and shaped during the first step of food package production. The second step comprises placing a food product E inside compart¬ ment 1 * . In the third step, compartment 1 ' is sealed with a second film 2, serving as a cover film and made of a plastics material, or the sealing is effected with some other cover material. The sealing is effect¬ ed between the edge portion 2" of second film 2 and the lap 1" of first film 1 for- providing an edge joint, shown particularly in figs. 2 and 3. The central port¬ ion 2' of second film 2 can be flat, as in fig. 1, or it can be more or less shaped e.g. by deep drawing the same way as first film 1.
When joined together, said first 1 and second 2 films provide a combination in the form of a sealed elastic package whose interior comprises a package space 4 for a food product/food products E.
At this stage of production, if necessary in terms of the shelf life or preparation of a food product, this combination is preferably subjected to various types of treatments, such as protective-gas filling. One possibility here is e.g. vacuum filling technique. This is possible for the reason that, at this stage, the combination can be deflated since the plastic films are resilient and possible deformations at this time bear no significance as to the final qualities of a package. Thus, the air can be exhausted from package space 4 and vacuum filling technique can be applied to fill said package space 4 with an inert protective gas. Combination 1 , 2 returns to its original shape after the vacuum filling. Similar treatments include pas¬ teurization and sterilization for improving the shelf life of a food product contained in package space 4. These treatments can be preferably effected just at this stage as combination 1 , 2 is still in a resilient condition and the treatment is not restricted by the properties of a supporting structure, nor is the sup¬ porting structure damaged as a result of such treatment.
Following the above treatments, the combination in the form of an elastic package consisting of first 1 and second 2 films is placed inside the shaped portion 5' of a supporting structure 5 in a manner that the shaped first film portion fits into the corresponding portion of supporting structure 5. The shaped supporting struc¬ ture portion 5' and said shaped compartment 1 * of first film 1 are substantially of equal size, so the lap 1" of film 1 lays itself upon a shoulder, preferably a flange 5" surrounding the shaped portion of supporting structure 5. At this time, there is effected the join¬ ing between the combination formed by first 1 and sec¬ ond 2 films and supporting structure (joint 6, especial¬ ly in fig. 2) . Dot-shaped and/or line-shaped junctions 7 can be provided on the shaped supporting structure portion 5' between supporting structure 5 and first film 1. Depending on shelf-life requirements and ultimate use and sealing, said films 1 and 2 can be optionally made of various materials. Particularly, if hot sealing is used for a joint 3, the films will be selected in a manner that films 1 and 2 join together and film 1 joins also to the supporting structure. If one of the above joints is effected by gluing, there will be more possibilities of selecting the films.
A bottom corner of the food package is shown enlarged in detail B of fig. 2. This illustrates dot-shaped or line-shaped junctions 7 between supporting struc¬ ture 5 and first film 1 for effecting a possibly ne¬ cessary attachment of irst film 1 to the shaped port¬ ion 5' of supporting structure 5.
The supporting structure 5 can be fabricated by using cardboard, paperboard or plastics. The supporting structure can be a pre-made cardboard box or tray whose material comprises cardboard or paperboard, possibly coated with a hot-sealing layer of plastics (PET) . The supporting structure can also be obtained by using an erectable package which is assembled to its final form prior to fitting a combination formed by films 1 and 2 inside the supporting structure. The assembly is effected by applying a gluing, clamp-hook or a like technique from cardboard or paperboard. The support¬ ing structure can also be shaped by press moulding or deep drawing. The supporting structure material can be selected and its shaping effected according to the intended use of a food package. An essential feature of supporting structure 5 is to provide a necessary mechanical protection for a possibly processed food product placed inside the combination formed by films 1 and 2 and to allow the utilization of "such support- ing structure at the time when a food package is used e.g. as a plate or other base. The supporting struc¬ ture need not possess liquid or gas tightness qualities.
As particularly shown in fig. 3, film 2 can be provided with a tear-off indication 8, whereat the removal of a cover-film serving second film 2 can be initiated for consuming the food products. Particularly in the em¬ bodiment shown in fig. 3, a combination formed by films 1 and 2 is divided into two compartments by means of a partition 9. Thus, one and the same food package can be furnished with different types of food products, e.g. a ready-made meal. In the case shown in fig. 3, the shaped portion of film 1 includes a folding lap, extending from the floor up to cover film 2 and joined thereto, said partition 9 being fitted therebetween. It is obvious that the package can include even more compartments whenever necessary.
In package manufacturing technique, it is possible to apply methods known from plastic films handling tech¬ nique, whereby the shaping of a first film especially by deep drawing can be effected on a wide web of plast¬ ic film in a manner that a plurality of shaping pro¬ cedures are simultaneously effected in the lateral di¬ rection of a web followed by placing the food products inside the above-mentioned shaped portions. This is followed by laying a cover film web matching the width of said film web upon the first film web, a possible protective-gas filling and forming the above-mentioned joints 3. Thereafter, the parallel, still unified com¬ binations are forwarded to possible pasteurization and sterilization stages. This is followed by fitting the combinations inside the supporting structures and finished food packages are separated from each other to form either individual packages or groups of pack¬ ages.
Preferable applications may include various pies, such as meat and Karelian pies, pizzas, ready-made food portions, processed baking dishes, soups etc., either deep-frozen or fresh. Food products can be pre-cooked or uncooked as the case may be.
One example of a preferred embodiment of films 1 and 2 especially for food packages intended for microwave ovens and/or conventional ovens can be the following combined film structure. As a hot-sealing (especially for joint 3) layer, said films 1 and 2 can be provided with amorphous, crystallizable polyester (PET) . Since this type of plastic is well sealable with heat and deep drawable, it will soften and go shapeless by it¬ self at a temperature of 100°C to 130 C. When the above film is combined with another film whose soften¬ ing point is above 150 C (e.g. PP, orientated PET, PA etc.) , the result will be a composite film capable of resisting high temperatures (150 C to 250°C) since during the thermal treatment of a food package the polyester crystallizes on the surface of a carrier layer as a high temperature resistant film. The above layers can be joined together by laminating, co- extruding or coating. The surfaces of carrier films can be treated with a heat-resistant lacquer, if ne¬ cessary.
Fig. 4 illustrates schematically the method sequence, the reference numerals corresponding to those used in figs. 1 to 3.

Claims

Claims
1. A method for the production of a food package, said food package comprising:
a shaped, preferably deep-drawn first film
(1) including at least one compartment (1 ' ) for a food product contained in the package,
a second film (2) serving as a cover film, said films (1 and 2) being joined together for providing a package space (4) for a food product (E) , said space being sealed with a flange joint (3) , and
a supporting structure (5) inside which said first film (1) is substantially fitted and to which is attached a combination formed by first (1) and second (2) films,
c h a r a c t e r i z e d by the following steps :
A) shaping a first film (1),
B) placing a food product (E) inside a compart¬ ment (11) formed by first film (1),
C) sealing compartment (1') with a second film
(2) or the like serving as a cover film,
D) fabricating a supporting structure (5) com¬ prising a shaped portion (51)*
E) placing a combination formed by first and second films (1, 2) in contact with the sup¬ porting structure in a manner that the first film fits into shaped portion (5') of sup¬ porting structure (5) , and
F) joining combination (1, 2 ) and supporting structure (5) together.
2. A method as set forth in claim 1, c h a r a c ¬ t e r i z e d in that said package space (4) built by combination (T, 2) formed by the first and second films is subjected to at least one treatment, such as a pro¬ tective-gas treatment, pasteurization and/or sterili¬ zation prior to attaching said combination (1, 2) to the supporting structure.
3. A method as set forth in claim 1, c h a r a c ¬ t e r i z e d in that said supporting structure (5) and the combination formed by first and second films (1 and 2) are joined together at least at a flange joint (3) between said films (1 and 2).
4. A method as set forth in claims 1 and 3, c h a r - a c t e r i z e d in that said supporting structure (5) and the first film are joined together also by using dot-shaped and/or line-shaped junctions (7) pro¬ vided on said shaped portion (5') of the supporting structure.
5. A method as set forth in claim 1, c h a r a c ¬ t e r i z e d in that the films forming said combinat¬ ion (1, 2) are worked into a composite film compris¬ ing at least two layers, whereof the layers set against each other at joint (3) are made of a hot-sealing material which, after its crystallization, withstands a temperature of over 200°C and whereof the upper layer forms a carrier layer whose qualities are so selected that its softening point is higher than what the hot- sealing layer requires for its crystallization.
6. A method as set forth in claim 1, c h a r a c ¬ t e r i z e d in that said supporting structure (5) is made of heat-resistant cardboard, paperboard or plastics and that the supporting structure is prefer¬ ably erected by using a gluing, clamp-hook or a like assembling method.
7. A method as set forth in claim 1, c h a r a c ¬ t e r i z e d in that the supporting structure is manufactured by press moulding or deep drawing by using e.g. heat-resistant cardboard, paperboard or plastics.
PCT/FI1988/000041 1987-03-27 1988-03-22 Method for the production of a food package WO1988007472A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO885264A NO885264D0 (en) 1987-03-27 1988-11-25 PROCEDURE FOR PRODUCING A PACKAGING.
DK657388A DK657388D0 (en) 1987-03-27 1988-11-25 PROCEDURE FOR PREPARING A FOOD PACKAGING

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI871348 1987-03-27
FI871348A FI871348A0 (en) 1987-03-27 1987-03-27 FOERPACKNING FOER LIVSMEDEL.
FI881056A FI881056A (en) 1987-03-27 1988-03-08 FOERFARANDE FOER TILLVERKNING AV LIVSMEDELSFOERPACKNING.
FI881056 1988-03-08

Publications (1)

Publication Number Publication Date
WO1988007472A1 true WO1988007472A1 (en) 1988-10-06

Family

ID=26158116

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1988/000041 WO1988007472A1 (en) 1987-03-27 1988-03-22 Method for the production of a food package

Country Status (3)

Country Link
EP (1) EP0310641A1 (en)
FI (1) FI881056A (en)
WO (1) WO1988007472A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014294A1 (en) * 1989-05-18 1990-11-29 Robinson & Sons Limited Packaging container
EP0462767A2 (en) * 1990-06-18 1991-12-27 Kraft Foods, Inc. Microwavable package
FR2707960A1 (en) * 1993-07-23 1995-01-27 Madrange Package intended for food products, particularly terrines and pâtés, having isothermal properties, but allowing fast cooking of the contents
GB2314311A (en) * 1996-06-17 1997-12-24 Oyalves S L Packaging fish in trays
GB2397508A (en) * 2003-01-24 2004-07-28 Kraft Foods R & D Inc Cartridge system for the preparation of beverages
FR2860215A1 (en) * 2003-09-26 2005-04-01 Logiplast Container for drink such as mineral water has supple plastic film pouch inside re-usable receptacle
EP1747880A1 (en) * 2005-07-28 2007-01-31 Multivac Sepp Haggenmüller GmbH & Co. KG Device and method to apply a lining to a container and container with a lining
DE102011120949A1 (en) * 2011-07-06 2013-01-10 Cfs Germany Gmbh,Niederlassung Csf Wallau Packaging machine with a means for attaching a liner to a structural element
US8771768B2 (en) 2007-11-09 2014-07-08 Kraft Foods R & D, Inc. Beverage cartridge
US8852659B2 (en) 2003-01-24 2014-10-07 Kraft Food R & D, Inc. Cartridge for the preparation of beverages
US9101163B2 (en) 2009-03-27 2015-08-11 Kraft Foods R & D, Inc. Sealed cartridge containing beverage concentrates
GR1010043B (en) * 2020-04-10 2021-08-13 Αθανασιος Δ. Κουκουταρης Α.Ε.Β.Ε. Flexible film packaging suitable for baking and heating frozen dough products in oven without removal of said packaging

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WO1990014294A1 (en) * 1989-05-18 1990-11-29 Robinson & Sons Limited Packaging container
US5178294A (en) * 1989-05-18 1993-01-12 Robinson & Sons Ltd. Packaging container
AU635748B2 (en) * 1989-05-18 1993-04-01 Robinson & Sons Limited Packaging container
EP0462767A2 (en) * 1990-06-18 1991-12-27 Kraft Foods, Inc. Microwavable package
EP0462767A3 (en) * 1990-06-18 1992-08-26 Kraft General Foods, Inc. Microwavable package
FR2707960A1 (en) * 1993-07-23 1995-01-27 Madrange Package intended for food products, particularly terrines and pâtés, having isothermal properties, but allowing fast cooking of the contents
GB2314311A (en) * 1996-06-17 1997-12-24 Oyalves S L Packaging fish in trays
GB2397508A (en) * 2003-01-24 2004-07-28 Kraft Foods R & D Inc Cartridge system for the preparation of beverages
GB2397508B (en) * 2003-01-24 2004-12-22 Kraft Foods R & D Inc Cartridge system for the preparation of beverages and method of manufacturing said system and method of manufacturing said system
US9451847B2 (en) 2003-01-24 2016-09-27 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages
US10676273B2 (en) 2003-01-24 2020-06-09 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages
US10442611B2 (en) 2003-01-24 2019-10-15 Koninklijke Douwe Egberts B.V. Machine for the preparation of beverages
US8852659B2 (en) 2003-01-24 2014-10-07 Kraft Food R & D, Inc. Cartridge for the preparation of beverages
US9994388B2 (en) 2003-01-24 2018-06-12 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages
FR2860215A1 (en) * 2003-09-26 2005-04-01 Logiplast Container for drink such as mineral water has supple plastic film pouch inside re-usable receptacle
EP1747880A1 (en) * 2005-07-28 2007-01-31 Multivac Sepp Haggenmüller GmbH & Co. KG Device and method to apply a lining to a container and container with a lining
US9828153B2 (en) 2007-11-09 2017-11-28 Koninklijke Douwe Egberts B.V. Beverage cartridge
US8771768B2 (en) 2007-11-09 2014-07-08 Kraft Foods R & D, Inc. Beverage cartridge
US9113654B2 (en) 2009-03-27 2015-08-25 Kraft Foods R & D, Inc. Beverage concentrates
US9101163B2 (en) 2009-03-27 2015-08-11 Kraft Foods R & D, Inc. Sealed cartridge containing beverage concentrates
DE102011120949A1 (en) * 2011-07-06 2013-01-10 Cfs Germany Gmbh,Niederlassung Csf Wallau Packaging machine with a means for attaching a liner to a structural element
GR1010043B (en) * 2020-04-10 2021-08-13 Αθανασιος Δ. Κουκουταρης Α.Ε.Β.Ε. Flexible film packaging suitable for baking and heating frozen dough products in oven without removal of said packaging

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FI881056A0 (en) 1988-03-08
EP0310641A1 (en) 1989-04-12

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