CA1269069A - Container, particularly for receiving foods - Google Patents
Container, particularly for receiving foodsInfo
- Publication number
- CA1269069A CA1269069A CA000502485A CA502485A CA1269069A CA 1269069 A CA1269069 A CA 1269069A CA 000502485 A CA000502485 A CA 000502485A CA 502485 A CA502485 A CA 502485A CA 1269069 A CA1269069 A CA 1269069A
- Authority
- CA
- Canada
- Prior art keywords
- tray
- container according
- container
- edge strips
- heat
- 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.)
- Expired - Lifetime
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
- B65D81/34—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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0413—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton
- B65D77/0433—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton the inner container being a tray or like shallow container, not formed by folding or erecting one or more blanks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Package Specialized In Special Use (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Packages (AREA)
- Cartons (AREA)
- Laminated Bodies (AREA)
Abstract
ABSTRACT
In a container, particularly for receiving foods or the like, a tray is to be shaped from at least one heat-resistant plastic layer. This tray (2) is surrounded by a blank (1) and the latter is at least partly joined to the tray (2).
In a container, particularly for receiving foods or the like, a tray is to be shaped from at least one heat-resistant plastic layer. This tray (2) is surrounded by a blank (1) and the latter is at least partly joined to the tray (2).
Description
~ti~.to~j'3 C~NTAT~F.I~, PA~'rICIJLA~LY ~OR RECETVIN~ Fn~D~
Th~ inventi~n relates to a container, particularly for receiving foods and the like, with a *ray made from at least one heat-re~istant plast~c layer.
Such a tray is known from European Patent 12 026, where the heat-resistant plastic layer is a layer of a composite material comprising at least one further layer of a heat-resistant material which is not modified by the radiation as a carrier or support structure for the plastic layer. This container has the important advantage that it can be placed in an oven together with its content, without the internal plastic coating melting or the content sticking to the internal plastic coating. Howe~er, the manufacture of a container from such a composite material leads to diffic~lties, if e.g. a fibrous material layer is used as the second layer.
Thus, when using such a composite material, it is not e.g.
possible to produce a packaging container which is to be herme-tically sealed by a deep drawing process. However, fibrous material layers, particularly cardboard, ha~e the important advantage that they are made from a material which is not changed by electron radiation, whilst printing thereon is very easy~
It has been found that a container mnde solely from the aforementioned thermoplastic material or from such a . . _. . _ . _. . . ...... _ .. _ .
multilayer plastic is unsuitable for use in an oven or the like. Thus, e.9. the rims of ContainerS sealed in conjunction \ with an apparatus according to German .~, ,, . . . . . . . . ~
, `
~ ~ .' tt~J~
,, patent applic~tion P 32 43 631~.3 are illfluence(l to ~u~h an extent by the h~at action in the o~en that they become wavy. This not only leads to an unattractive appearance of the container, but can also unfavourably influence the sealing between the sealing film or cover and the actual container The problem of the present invention is to develop a heat-resistant container of the aforementioned type, where the aforementioned disadvantages do not occur, which is particularly highly stable and remains stable and tight under heat action. Moreover, it must be possible to easily write or print thereon and it must be usable in an apparatus known from DE-OS 32 lO 566 or DE-OS 32 43 634.
According to the invention this problem is solved in that the tray is surrounded by a blank and the latter is at least partly joined to the tray.
As a result of this blank, the tray receives a support structure. According to the invention, the tray is shaped -from a heat-resistant polyester or a thermoplastic material, e.g. polyethylene which, for increasins its resistance to thermal action, has been exposed to a hiSh energy, electron or electromagnetic radiation and which is such that the thermoplastic layer in guaranteed manner is able to withstand a permanent thermal action of above 200C (oven temperature).
Admittedly within certain limits heat-resistant polyester also withstands 200C, but there are considerable temperature variations in an oven due to inadequate regulation~
.
i9()~ 3 In c~rtain cases it can be sufficiont if tho blanX i~
constituted by a base p~rt and two ~ide or end walls separated from the base part by bend or break lines, whereby said walls engage with a~ edge strip below the tray and are connected thereto. An even better result with regards to the container stability is obtained if both the end and side walls are provided with horizontally projecting edge strips, which in the position of use engage below the end rim of the tray, the edge strips of two facing walls being provided on either side with extensions. Thus, the blanX or its edge strips form a closed frame on which rests the tray rim.
The edge strips are once again separated from the side or end walls by bend lines and are defined with respect to a base part by further bend lines.
This preferred embodiment permits a very easy manufacture of the blank and also the latter can be placed in the drawer Xnown from DE-OS 32 10 566. Longitudinal slots in the bend lines improve the handling characteristics. After placing the blanX in the drawer, the tray is also inserted and the sealing means are lowered onto the rim resting on the edge strips. Thus, if desired, sealing cnn take place with or wi~hout a sealing film or cover. It has been found that the edge strips of the blank have the effect of ensuring that the rim does not become wavy. This means that the container retains its desired original form, but is now provided with ,, , . - - - ' '': . `' '`
3~
1, tho blank as a support and carrier structure. Ther~ ~re no leaks in the case of a sealed-on film or co~er, The blank preferably comprises a fibrous material layer with an internal plastic coating. This internal plastic coating can on the one hand be readily connected to the thermoplastic layer of the rim during sealing on, whilst on the other hand the fibrous material layer is suitable for printing or writing on. As the blank is produced solely by bending along the bend lines, there is no distortion of the fibrous material layer with respect to the internal plastic coating, as was observed in the case of a container produced by deep drawing.
As the internal plastic coating also does not come into contact with the content, it is unimportant whether or not it melts at the oven temperature, so that inexpensive, non-irradiated polyethylene hot melt or thermal lacquer can be used.
The fibrous material layer is preferably formed from cardboard or material containing recycled cellulose. As it is generally ~ritten or printed on or provided with a stick-on label or the like, there is no harm in using such waste material. As a result costs are kept much lo~er.
The statements made here regardins the blank material are only of an exemplified nature, because many other materials are equally suitable.
The tray can, as stated hereinbefore, be made entirely from l;~t;~ ,'3 a sin~l~ layer of polyestcr or a cro~linke-l, th~rmoplastic material. Polyethylene is advantageous from the cost standpoint. However, it is more appropriate for stren~gth reasons to use a composite material. In this case, the thermoplastic material sho~ld form the inner skin and the further layer the outer skin and between the two it is also possible to provide further layers. Preference is given to a very heat-resistant polystyrene outer skin. As stated herein-before, as required, the outer skin can also be formed by mate-rials not ~odified by radiation or other thermoplastic materials.
... _ . . . . . _ If the container is now to be given a content which e.g.
spoils easily, a film or cover, e.g. of cardboard can be sealed onto the tray. If the aforementioned sealing means are used, the film is sealed onto the tray rim and the blank edge strips.
The container is ~ery inexpensively manufacturable in a highly stable and particularly dimensionally stable manner, because both the polyethylene used and the recycled fibrous layers used are inexpensive and its oxygen permeability is improved. No difficulties are encountered on printing on the blank. Even after spending a long time in the oven at oven temperature, there is no change to the container and in particular the content does not stick to the tray.
As a result of the planar sealing of the cover or foil, l.;~t;~3~ 3 including in the ~arginal regions, the stability in this critical zone is ensured.
Further advantages, features and details of the invention can be gathered from the following description of preferred embodiments and with reference to the attached drawings, wherein show:
Fig. 1 A perspective view of a packing container according to the invention.
Fig. 2 A perspective view of a packing container according to fig. 1 in exploded form.
Fig. 3 A plan view of a blank of part of the packing container.
Fig. 4 A plan view of a further embodiment of a blank.
Fig. 5 A cross-section through the packing container along line IV - I~ in fig. 1.
According to figs. 1 and 2, a sealable packing container R
comprises three parts, namely a cardboard blank 1, a tray 2 and a sealing film 3, the latter not being visible in fig. 1.
According to fig. 3, the cardboard blank 1 has a base part 4 and in each case a pair of side and end walls 7, 8 separated from the base part 4 by bend lines 5, 6. Edge strips 9, 10 are in each case separated by further bend lines 11, 12 from side and end walls 7, 8. In order to improve the bending along bend lines 5, 6, 11, 12, the latter are '3~ 3 provided with longitudinal slot~ 13. Thc tray 2 is ~haped in one piece from pla~tic and has an all-round rim.
The sealing film 3 is constituted by a commercially available sealable plastic film, but it is also possible t~ use any other sealable cover, such as e.g. cardboard or plastic-coated cardboard, Fig. 4 shows the layered structure of the individual container parts 1, 2 and 3. Cardboard blank 1 comprises an outwardly directed fibrous material layer 16, which is coated with an internal plastic coating 17, preferably of polyethylene. Tray 2 has an outer skin 18 of a plastics material, preferably polystyrene and an inner skin lg of a crosslinkable plastic, preferably polyethylene. The sealing film 3 is not formed from a composite material in the present embodiment.
Following the sealing process, rim 14 is not only joined to the sealing film 3 but also with the edge strips 9, 10 of cardboard blank 1. The remaining parts of cardboard blank 1 and tray 2 are not joined.
Cardboard blank 1 is particularly suitable to be placed in a drawer of a sealing machine of the type shown in DE-OS
32 10 566 or DE-OS 32 43 634. After placing tray 2 in the cardboard blank, the sealing film 3 is sealed on.
i9(1~,13 Blank la ~hown in fig. 4, a~ a re~ult of the wedge-~haped formation of the ~ide or end wall 7, 8 and an overlapping zone 20, the edge strip lOa in the use position of a container, in which also the corner z~nes are closed.
~ ' -.
Th~ inventi~n relates to a container, particularly for receiving foods and the like, with a *ray made from at least one heat-re~istant plast~c layer.
Such a tray is known from European Patent 12 026, where the heat-resistant plastic layer is a layer of a composite material comprising at least one further layer of a heat-resistant material which is not modified by the radiation as a carrier or support structure for the plastic layer. This container has the important advantage that it can be placed in an oven together with its content, without the internal plastic coating melting or the content sticking to the internal plastic coating. Howe~er, the manufacture of a container from such a composite material leads to diffic~lties, if e.g. a fibrous material layer is used as the second layer.
Thus, when using such a composite material, it is not e.g.
possible to produce a packaging container which is to be herme-tically sealed by a deep drawing process. However, fibrous material layers, particularly cardboard, ha~e the important advantage that they are made from a material which is not changed by electron radiation, whilst printing thereon is very easy~
It has been found that a container mnde solely from the aforementioned thermoplastic material or from such a . . _. . _ . _. . . ...... _ .. _ .
multilayer plastic is unsuitable for use in an oven or the like. Thus, e.9. the rims of ContainerS sealed in conjunction \ with an apparatus according to German .~, ,, . . . . . . . . ~
, `
~ ~ .' tt~J~
,, patent applic~tion P 32 43 631~.3 are illfluence(l to ~u~h an extent by the h~at action in the o~en that they become wavy. This not only leads to an unattractive appearance of the container, but can also unfavourably influence the sealing between the sealing film or cover and the actual container The problem of the present invention is to develop a heat-resistant container of the aforementioned type, where the aforementioned disadvantages do not occur, which is particularly highly stable and remains stable and tight under heat action. Moreover, it must be possible to easily write or print thereon and it must be usable in an apparatus known from DE-OS 32 lO 566 or DE-OS 32 43 634.
According to the invention this problem is solved in that the tray is surrounded by a blank and the latter is at least partly joined to the tray.
As a result of this blank, the tray receives a support structure. According to the invention, the tray is shaped -from a heat-resistant polyester or a thermoplastic material, e.g. polyethylene which, for increasins its resistance to thermal action, has been exposed to a hiSh energy, electron or electromagnetic radiation and which is such that the thermoplastic layer in guaranteed manner is able to withstand a permanent thermal action of above 200C (oven temperature).
Admittedly within certain limits heat-resistant polyester also withstands 200C, but there are considerable temperature variations in an oven due to inadequate regulation~
.
i9()~ 3 In c~rtain cases it can be sufficiont if tho blanX i~
constituted by a base p~rt and two ~ide or end walls separated from the base part by bend or break lines, whereby said walls engage with a~ edge strip below the tray and are connected thereto. An even better result with regards to the container stability is obtained if both the end and side walls are provided with horizontally projecting edge strips, which in the position of use engage below the end rim of the tray, the edge strips of two facing walls being provided on either side with extensions. Thus, the blanX or its edge strips form a closed frame on which rests the tray rim.
The edge strips are once again separated from the side or end walls by bend lines and are defined with respect to a base part by further bend lines.
This preferred embodiment permits a very easy manufacture of the blank and also the latter can be placed in the drawer Xnown from DE-OS 32 10 566. Longitudinal slots in the bend lines improve the handling characteristics. After placing the blanX in the drawer, the tray is also inserted and the sealing means are lowered onto the rim resting on the edge strips. Thus, if desired, sealing cnn take place with or wi~hout a sealing film or cover. It has been found that the edge strips of the blank have the effect of ensuring that the rim does not become wavy. This means that the container retains its desired original form, but is now provided with ,, , . - - - ' '': . `' '`
3~
1, tho blank as a support and carrier structure. Ther~ ~re no leaks in the case of a sealed-on film or co~er, The blank preferably comprises a fibrous material layer with an internal plastic coating. This internal plastic coating can on the one hand be readily connected to the thermoplastic layer of the rim during sealing on, whilst on the other hand the fibrous material layer is suitable for printing or writing on. As the blank is produced solely by bending along the bend lines, there is no distortion of the fibrous material layer with respect to the internal plastic coating, as was observed in the case of a container produced by deep drawing.
As the internal plastic coating also does not come into contact with the content, it is unimportant whether or not it melts at the oven temperature, so that inexpensive, non-irradiated polyethylene hot melt or thermal lacquer can be used.
The fibrous material layer is preferably formed from cardboard or material containing recycled cellulose. As it is generally ~ritten or printed on or provided with a stick-on label or the like, there is no harm in using such waste material. As a result costs are kept much lo~er.
The statements made here regardins the blank material are only of an exemplified nature, because many other materials are equally suitable.
The tray can, as stated hereinbefore, be made entirely from l;~t;~ ,'3 a sin~l~ layer of polyestcr or a cro~linke-l, th~rmoplastic material. Polyethylene is advantageous from the cost standpoint. However, it is more appropriate for stren~gth reasons to use a composite material. In this case, the thermoplastic material sho~ld form the inner skin and the further layer the outer skin and between the two it is also possible to provide further layers. Preference is given to a very heat-resistant polystyrene outer skin. As stated herein-before, as required, the outer skin can also be formed by mate-rials not ~odified by radiation or other thermoplastic materials.
... _ . . . . . _ If the container is now to be given a content which e.g.
spoils easily, a film or cover, e.g. of cardboard can be sealed onto the tray. If the aforementioned sealing means are used, the film is sealed onto the tray rim and the blank edge strips.
The container is ~ery inexpensively manufacturable in a highly stable and particularly dimensionally stable manner, because both the polyethylene used and the recycled fibrous layers used are inexpensive and its oxygen permeability is improved. No difficulties are encountered on printing on the blank. Even after spending a long time in the oven at oven temperature, there is no change to the container and in particular the content does not stick to the tray.
As a result of the planar sealing of the cover or foil, l.;~t;~3~ 3 including in the ~arginal regions, the stability in this critical zone is ensured.
Further advantages, features and details of the invention can be gathered from the following description of preferred embodiments and with reference to the attached drawings, wherein show:
Fig. 1 A perspective view of a packing container according to the invention.
Fig. 2 A perspective view of a packing container according to fig. 1 in exploded form.
Fig. 3 A plan view of a blank of part of the packing container.
Fig. 4 A plan view of a further embodiment of a blank.
Fig. 5 A cross-section through the packing container along line IV - I~ in fig. 1.
According to figs. 1 and 2, a sealable packing container R
comprises three parts, namely a cardboard blank 1, a tray 2 and a sealing film 3, the latter not being visible in fig. 1.
According to fig. 3, the cardboard blank 1 has a base part 4 and in each case a pair of side and end walls 7, 8 separated from the base part 4 by bend lines 5, 6. Edge strips 9, 10 are in each case separated by further bend lines 11, 12 from side and end walls 7, 8. In order to improve the bending along bend lines 5, 6, 11, 12, the latter are '3~ 3 provided with longitudinal slot~ 13. Thc tray 2 is ~haped in one piece from pla~tic and has an all-round rim.
The sealing film 3 is constituted by a commercially available sealable plastic film, but it is also possible t~ use any other sealable cover, such as e.g. cardboard or plastic-coated cardboard, Fig. 4 shows the layered structure of the individual container parts 1, 2 and 3. Cardboard blank 1 comprises an outwardly directed fibrous material layer 16, which is coated with an internal plastic coating 17, preferably of polyethylene. Tray 2 has an outer skin 18 of a plastics material, preferably polystyrene and an inner skin lg of a crosslinkable plastic, preferably polyethylene. The sealing film 3 is not formed from a composite material in the present embodiment.
Following the sealing process, rim 14 is not only joined to the sealing film 3 but also with the edge strips 9, 10 of cardboard blank 1. The remaining parts of cardboard blank 1 and tray 2 are not joined.
Cardboard blank 1 is particularly suitable to be placed in a drawer of a sealing machine of the type shown in DE-OS
32 10 566 or DE-OS 32 43 634. After placing tray 2 in the cardboard blank, the sealing film 3 is sealed on.
i9(1~,13 Blank la ~hown in fig. 4, a~ a re~ult of the wedge-~haped formation of the ~ide or end wall 7, 8 and an overlapping zone 20, the edge strip lOa in the use position of a container, in which also the corner z~nes are closed.
~ ' -.
Claims (24)
1. Container, particularly for receiving foods or the like and for use in a baking oven or the like comprising an inner tray surrounded by an outer tray, said inner tray being at least partially formed from a heat-resistant plastic material which has been exposed to a high energy, electron or electromagnetic radiation to increase its resistance to heat exposure and which is capable of permanently withstanding a temperature or over 200°C. (oven temperature), said outer tray being made of a blank at least partly joined to the inner tray, said blank having an outer fibrous material layer and an internal plastic coating and comprising a base part and a plurality of walls separated from said base part by means of bend lines, said walls having edge strips which engage a first surface of a rim on said inner tray, said edge strips being separated from the walls by means of additional bend lines, said container further being characterized by said edge strips of two facing ones of said walls carrying extensions, and a cover sealed to a second surface of said rim opposed to said first surface.
2. Container according to claim 1, characterized in that the inner tray further comprises a shaped heat-resistant polyester layer.
3. Container according to claim 1, characterized in that the inner tray is shaped from polyethylene which has been exposed to said high energy, electron or electromagnetic radiation to increase its resistance to heat exposure and which is such that it can permanently withstand a temperature of over 200°C.
(oven temperature).
(oven temperature).
4. Container according to claim 1, characterized in that the bend lines have elongated slots.
5. Container according to claim 1, characterized in that the internal plastic coating comprises an uncrosslinked or non-irradiated thermoplastic material, preferably polyethylene.
6. Container according to claim 1, characterized in that the fibrous layer is produced from cardboard or material containing recycled cellulose.
7. Container according to claim 1, characterized in that the inner tray is made from a composite material, whose inner skin is formed from a heat-resistant plastic material which comprises at least one crosslinked, thermoplastic material.
8. Container according to claim 7, characterized in that the inner skin is surrounded by an outer skin.
9. Container according to claim 8, characterized in that further layers are placed between said inner skin and said outer skin.
10. Container according to claim 8, characterized in that the outer skin is made from a heat-resistant material, which is not modified by irradiation.
11. Container according to claim 8, characterized in that the outer skin is made from a heat-resistant material, which can also be modified by radiation.
12. Container according to claim 11, characterized in that the outer skin is formed from polystyrene.
13. Container according to claim 1, characterized in that said cover sealing said inner tray is formed by at least one of a film, cardboard, and plastic-coated cardboard.
14. Container according to claim 13, characterized in that said cover is sealed onto the rim and the edge strips.
15. Container according to claim 14, characterized in that said cover is formed by a film and the film and edge strips are sealed to the rim in one operation.
16. A container, particularly for receiving foods or the like, with a tray comprising at least one heat-resistant plastic layer, characterized in that the tray is surrounded by a blank and the latter is at least partly joined to the tray, said tray being shaped from a thermoplastic layer, which is exposed to a high energy, electron or electromag-netic radiation for increasing its resistance to heat exposure and which is such that the thermoplastic layer can permanently withstand a temperature of over 200°C.
17. A container, according to claim 16, chacter-ized in that the tray is shaped from a heat-resistant polyester.
18. A container according to claim 16, character-ized in that the blank comprises a base part and at least two walls separated from the base part by means of bend lines, whereby edge strips of said walls engage below a rim of the tray.
19. A container, particularly for receiving foods or the like, with a tray comprising at least one heat-resistant plastic layer, characterized in that the tray is surrounded by a blank, said blank being at least partly joined to the tray and comprising a base part and a plurality of walls separated from said base part by means of bend lines, said walls having edge strips which engage below a rim of said tray, said edge strips being separated from the walls by means of additional bend lines and said container further being character-ized by said edge strips of two facing ones of said walls carrying extensions, said tray being shaped from a thermoplastic layer, which is exposed to a high energy, electron or electromagnetic radiation for increasing its resistance to heat exposure and which is such that the thermoplastic layer can permanently withstand a temperature of over 200°C.
20. A container according to claim 19, character-ized in that the bend lines have elongated slots.
21. A container according to claim 19, character-ized in that the tray is made from a composite material, whose inner skin comprises at least one crosslinked, thermoplastic material.
22. A container according to claim 19, character-ized in that the tray is sealed by a cover formed by at least one of a film, cardboard, and plastic-coated cardboard.
23. A container according to claim 22, character-ized in that said cover is sealed onto the rim and the edge strips.
24. A container according to claim 23, character-ized in that said cover is formed by a film and the film and edge strips are sealed to the rim in one operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3506253A DE3506253C1 (en) | 1985-02-22 | 1985-02-22 | Heat-resistant receptacle |
| DEP3506.253.3 | 1985-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1269069A true CA1269069A (en) | 1990-05-15 |
Family
ID=6263307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000502485A Expired - Lifetime CA1269069A (en) | 1985-02-22 | 1986-02-21 | Container, particularly for receiving foods |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0214287B1 (en) |
| CA (1) | CA1269069A (en) |
| DE (2) | DE3506253C1 (en) |
| WO (1) | WO1986004880A1 (en) |
| ZA (1) | ZA861312B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739432A1 (en) * | 1987-02-24 | 1989-06-01 | Multivac Haggenmueller Kg | Packaging machine |
| FI881056A (en) * | 1987-03-27 | 1988-09-28 | Amerplast Oy | FOERFARANDE FOER TILLVERKNING AV LIVSMEDELSFOERPACKNING. |
| DE8717080U1 (en) * | 1987-12-30 | 1988-03-31 | H. & W. Gleich Fleischverarbeitungs- + Vertriebsgesellschaft mbH, 1000 Berlin | Packaging Unit |
| GB2239444B (en) * | 1989-10-23 | 1994-05-18 | Rhone Poulenc Ltd | Improvements in or relating to containers |
| US5484984A (en) * | 1994-03-04 | 1996-01-16 | Gics & Vermee, L.P. | Ovenable food package including a base with depending leg member and a plurality of raised portions and associated food packages |
| US5492703A (en) * | 1994-08-30 | 1996-02-20 | Gics & Vermee, L.P. | Food package including a food package tray partially surrounded by a food package jacket and an associated method |
| WO1996014982A1 (en) * | 1994-08-30 | 1996-05-23 | Gics & Vermee, L.P. | Method of making a food package and an associated apparatus |
| US5565228A (en) * | 1995-05-02 | 1996-10-15 | Gics & Vermee, L.P. | Ovenable food product tray and an ovenable food product package |
| US5709308A (en) * | 1995-06-06 | 1998-01-20 | Gics & Vermee, L.P. | Food product container including a tray and a jacket and an associated food product package |
| US5743402A (en) * | 1997-03-18 | 1998-04-28 | Gics & Vermee, L.P. | Food package including a tray and a sleeve |
| US5900263A (en) * | 1997-06-26 | 1999-05-04 | Gics & Vermee, L.P. | Food package having a rigid leg member for displaying the front panel thereof |
| US5958484A (en) * | 1997-10-28 | 1999-09-28 | Gics & Vermee, L.P. | Food package including a tray surrounded by a sleeve having an end flap |
| WO2009087608A1 (en) * | 2008-01-12 | 2009-07-16 | Vanda Janka | Packaging for packaging, regenerating or maintaining a food product at the desired temperature |
| EP2441696A1 (en) | 2010-10-14 | 2012-04-18 | Packable B.V. | Packaging for modified atmosphere packaging |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1985746U (en) * | 1967-11-15 | 1968-05-22 | Kalle Ag | MULTI-LAYER COMPOSITE SHEET. |
| CH514475A (en) * | 1969-07-09 | 1971-10-31 | Intercan S A C O Fiduciaire Wa | Installation for manufacturing receptacles comprising at least part of composite walls |
| SE360325B (en) * | 1971-04-16 | 1973-09-24 | Akerlund & Rausing Ab | |
| NL7207142A (en) * | 1971-06-07 | 1972-12-11 | ||
| US3785544A (en) * | 1972-05-15 | 1974-01-15 | Phillips Petroleum Co | Tray with strengthening member |
| DE2430900A1 (en) * | 1974-06-27 | 1976-01-15 | Torsten Jeppsson Ab | Packing for food - has inner enclosed in outer container and sealed by outer re-usable cover |
| US4100302A (en) * | 1976-04-12 | 1978-07-11 | Lectrofood Corp. | Container for electrical resistance cooking |
| ATE2060T1 (en) * | 1978-11-30 | 1983-01-15 | Bicc Limited | PROCESS FOR MAKING A HEAT SEALED PACKAGE FOR FOOD. |
| IS1192B6 (en) * | 1980-05-01 | 1985-06-18 | Metal Box Limited | Food packaging |
| CA1153216A (en) * | 1980-05-12 | 1983-09-06 | Guelfo A. Manizza | Tray container with reinforced sidewalls |
-
1985
- 1985-02-22 DE DE3506253A patent/DE3506253C1/en not_active Expired
-
1986
- 1986-02-21 CA CA000502485A patent/CA1269069A/en not_active Expired - Lifetime
- 1986-02-21 ZA ZA861312A patent/ZA861312B/en unknown
- 1986-02-22 DE DE8686902357T patent/DE3674116D1/en not_active Expired - Lifetime
- 1986-02-22 EP EP86902357A patent/EP0214287B1/en not_active Expired - Lifetime
- 1986-02-22 WO PCT/EP1986/000089 patent/WO1986004880A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| DE3674116D1 (en) | 1990-10-18 |
| ZA861312B (en) | 1986-12-30 |
| WO1986004880A1 (en) | 1986-08-28 |
| EP0214287A1 (en) | 1987-03-18 |
| DE3506253C1 (en) | 1986-07-31 |
| EP0214287B1 (en) | 1990-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |