EP2374725B1 - Emballage pour produits alimentaires - Google Patents

Emballage pour produits alimentaires Download PDF

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Publication number
EP2374725B1
EP2374725B1 EP20110380031 EP11380031A EP2374725B1 EP 2374725 B1 EP2374725 B1 EP 2374725B1 EP 20110380031 EP20110380031 EP 20110380031 EP 11380031 A EP11380031 A EP 11380031A EP 2374725 B1 EP2374725 B1 EP 2374725B1
Authority
EP
European Patent Office
Prior art keywords
sheet
packaging
food products
product
rigid
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.)
Not-in-force
Application number
EP20110380031
Other languages
German (de)
English (en)
Other versions
EP2374725A1 (fr
Inventor
Antonio Ochoa Marin
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.)
VALGRAF SL
Original Assignee
VALGRAF SL
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 ES201030503A external-priority patent/ES2374239B1/es
Application filed by VALGRAF SL filed Critical VALGRAF SL
Priority claimed from ES201130551A external-priority patent/ES2393771B2/es
Publication of EP2374725A1 publication Critical patent/EP2374725A1/fr
Application granted granted Critical
Publication of EP2374725B1 publication Critical patent/EP2374725B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/305—Skin packages

Definitions

  • the present invention refers to a packaging for food products purpose of which is to provide packages manufacture at the point of sale after packaging on-site foods such as meat, fish, meats or others that do not require vacuum packaging, also providing a geometric shape on the packaging suitable for the shape of the product to be packaged.
  • Another purpose of the invention consists in that the packaging can be easily stored, with low occupancy of space when products have not yet been packaged, by virtue of the flat constitution of its components, so that it can advantageously replace the non-planar trays made of expanded polystyrene with shrunk plastic film and the like; an objective of the invention being further that the used materials have a total recycling facility involving advantages of ecological nature.
  • the packages that are used for the delivery of food and produced at the very point of sale usually consist of a plastic tray, made of expanded polystyrene or other materials having a certain rigidity to accommodate the product portions such as pieces of meat, fish or others within a suitable volume, which are then capped with a plastic film that may be shrunk or not.
  • the clerk prepares such packages for their distribution on the shelves of the store, which has drawbacks because the empty trays or baskets have to be provided on a normally vertical stack, besides having means for cutting and applying the referred plastic film.
  • Another drawback, besides the great use of space that defines the storage of empty trays consists in that the material used in their manufacture, although provides means for recycling thereof, it lacks from the ecological advantages of other materials such as cardboard.
  • any packaging for food products having two flat and flexible sheets are not known in the current state of the art, in which one or both have volume adjustment means providing the packaging a shape corresponding to that of the packaged product, and which are capable of advantageously replacing the classical volumetric polystyrene trays, such as the packaging for food products of the present invention does provide.
  • EP 2 116 476 a package formed by a bag having two flat sheets sealed together along three sides and forming a mouth along the fourth side, which is closed by seal adhesive means covered with a removable protective strip as defined in the preamble of claim 1.
  • this package is not provided with volume adjustment means in order to provide the packaging a shape corresponding to that of the package product.
  • the invention relates to a packaging for food products having the features recited in claim 1.
  • the aforementioned means for sealing the open side can be such as to join the sheets in a reversible manner so that the user can access the packaged product and return it to the closed packaging several times, which can be done with the aforementioned mechanical pressure seals and also with seals through adhesive allowing multiple attachments and detachments.
  • the mentioned flexible sheet is entirely made of plastic material.
  • the flexible sheet can dimensionally protrude or not from the rigid or semi-rigid through the mouthpiece area for establishing the seal by depleting the surplus in the first case and by coincidence of the end edges in the second case.
  • the flexible sheet or first sheet will be permanently adhered to at least one side of the semi-rigid sheet and more preferably adhered to one of the longer sides of the semi-rigid sheet.
  • the flexible sheet will be adhered to the remaining longer sides of the semi-rigid sheet through a removable adhesive, i.e. an adhesive that allows attaching and detaching said sheets several times while maintaining a sufficient adhesion degree.
  • the removable adhesive side of the packaging opposite to the permanent adhesive side is thus defined as the mouthpiece of the packaging.
  • the packaging arrives fully extended and therefore plane to the points of sale.
  • the operator firstly detaches the sides of the flexible sheet that have no permanent bond to the semi-rigid sheet, and introduces the product to be packaged.
  • the semi-rigid sheet fits to the packaged product thanks to the pleats or folds presented, and the operator re-attaches the flexible sheet to the semi-rigid sheet by sealing the packaging.
  • Said second preferred embodiment comprises that the semi-rigid sheet has angular cuts at the corners.
  • Said angular cuts will range from innermost fold or split line, which runs parallel to each side of the semi-rigid sheet to the edge of said sheet, said cuts being parallel to the edges of the sheet.
  • the innermost fold lines will define the base of the packaging once the product to be packaged is introduced, and similarly they will define the folding wings of the packaging.
  • the folding wings comprise at least one additional longitudinal fold line that will define the area for attaching the flexible sheet to the semi-rigid sheet.
  • the semi-rigid sheet will have beveled cuts from the intersection points of the inner fold lines or split lines, which lines define the base of the packaging when the product has been introduced, to the corners of the semi-rigid sheets.
  • the folding wings defined by the cuts and the inner fold lines have at least one longitudinal fold line that will define the area for attaching the flexible sheet to the semi-rigid sheet.
  • the removable adhesive side of the packaging opposite to the permanent adhesive side is defined as the mouthpiece of the packaging.
  • the packaging object of the invention comprises, at least on two of its adjacent sides, removable adhesive strips that allow the attachment and detachment of the transparent sheet to the semi-rigid sheet. It further comprises that in at least one of the sides opposite to that of the at least two adjacent sides comprising the removable adhesive strips, the flexible sheet is permanently fixed to the semi-rigid sheet.
  • the packaging will have a permanent adhesive side and three with removable adhesive. Note that when along the present description a removable adhesive is mentioned, it does not mean an adhesive that can be put on and take off, but an adhesive that allows the attachment and detachment from, in this case the transparent sheet and the semi-rigid sheet, several times while maintaining perfect sealing conditions.
  • the packaging will have a tab or flap on the opposite side comprising having permanent adhesive for fixing the semi-rigid sheet and flexible sheet, which is bent upon itself along a fold line for once the flexible sheet has been attached on the semi-rigid sheet, this tongue, which comprises a removable adhesive strip is attached on the outer face of the flexible sheet providing the packaging a tighter seal and with greater rigidity. Any of the sides with removable adhesive and having no tongue are defined as the mouthpiece of the packaging.
  • the semi-rigid sheet comprise at least two tabs or flaps in at least two of the sides wherein the joint of the transparent sheet with the semi-rigid sheet with removable adhesive has been provided, which have adhesive strips. Said adhesive strips are preferably protected with a protective paper strip such as conventional postal envelopes.
  • a protective paper strip such as conventional postal envelopes.
  • the dimensions of the first sheet are higher than those in the area bounded by the innermost fold lines of the second sheet defining the base of the packaging so once the product to be packaged is introduced, the largest size of the first sheet compensates the thickness or volume of packaged product always coming to the removable adhesive area.
  • the second sheet being manufactured from a set of layers selected from a single layer of plastic material, a lower layer of rigid material and an upper layer of plastic material, the layer made of plastic material being in contact with the product to be packaged, and a lower layer of rigid material, an intermediate layer of metallic material and an upper layer of plastic material, the layer of plastic material being in contact with the product to be packaged.
  • the adhesive, both removable and permanent, used in the present invention will comply with health standards relating to its use for food packaging.
  • the packaging for food products of the invention has advantages over the state of the art because it provides packages that, being empty, have very low occupancy of space in view to their storage, since these occupy a volume equivalent to that of a conventional cardboard sheet, being however adapted to volumes of various geometries by using a simple fold in one of the constituting sheets and/or a simple extension of the other sheet.
  • Another advantage of the packaging of the invention consists in that it can include a very simple seal therein, such as an adhesive with protective strip area; being also an advantage of the invention that can be made from recyclable materials thus allowing greater respect for the environment.
  • the clearest advantage of the invention is that the packaging thereof can advantageously replace the traditional trays for fresh food supply, through the provision of the transparent sheet in a pre-attached manner and with self-sealing means, also having a minimum vacuum storage and very reduced volume compared to said trays, because the rigid or semi-rigid sheet is flat and together with the flexible sheet occupy a volume similar to that of a cardboard sheet, instead of the large volume occupied by the polystyrene or similar trays, which by being volumetric bodies have a large thickness and high space requirements for storing thereof.
  • the packaging of the invention still provides suitable rigidity for use, as that similarly provided by the aforementioned and classic trays, but holding the content therein more firmly because of the resistance to folding that the rigid or semi-rigid sheet has and the tension applied to the product in terms of its volume through the two sheets of the packaging of the invention.
  • the packaging for food products of all embodiments of the invention described below consists of a flexible sheet 2 made of transparent plastic material and a semi-rigid sheet 1 made of cardboard laminated on both faces, as can be seen in the enlarged detail of figure 2 .
  • the semi-rigid sheet 1 has split lines 3, as shown in figure 1 , that allow making volumetric conformations with great simplicity for adapting to the volume of product to be packaged 7, as can be seen in figure 2 .
  • the flexible sheet 2 has corrugations or folds 4 which have been shown with the broken line in figure 1 by being optional in this example of the invention, showing however the volumetric adaptation facilitated after packaging the product 7 in the above figure 2 .
  • the packaging of this example of the invention has a simple, effective and reversible seal that is defined by an adhesive area 5 in the sheet 2 covered by a protective strip of wax or similar paper 6 removal of which allows performing the seal when applying the adhesive area 5 to the sheet 1, as shown in the situation of the packaging in figure 2 .
  • sealing elements 5 and 6 Another variation on those sealing elements 5 and 6 consists in that these are located in the cardboard sheet 1 rather than in the flexible sheet 2 to facilitate, also in this case a seal by depleting the surplus, similar to that of the previous figure 4 ; this option of having the sealing elements 5 and 6 on sheet 1 being represented in figure 5 .
  • the flexible sheet (2) is permanently adhered to at least one side (12), by using a permanent adhesive strip (16), of the semi-rigid sheet (1) and more preferably it will be adhered to one of the longer sides of the semi-rigid sheet (1).
  • the flexible sheet (2) will be adhered to the remaining sides (11) of the semi-rigid sheet by using a removable adhesive, i.e. an adhesive that allows attaching and detaching said sheets several times while maintaining a sufficient adhesion degree.
  • the packaging arrives fully extended and therefore plane to the points of sale.
  • the operator firstly detaches the sides (11) of the flexible sheet (2) that have no permanent bond to the semi-rigid sheet (1) and introduces the product (7) to be packaged.
  • the semi-rigid sheet (1) fits to the packaged product (7) thanks to the pleats or folds (8,9) presented, and the operator re-attaches the flexible sheet (2) to the semi-rigid sheet (1) by sealing the packaging.
  • Said second preferred embodiment comprises that the semi-rigid sheet (1) has angular cuts (10) at the corners.
  • Said angular cuts (10) will range from innermost fold or split line (8), which runs parallel to each side of the semi-rigid sheet (1) to the edge of said sheet (1), said cuts (10) being parallel to the edges of the sheet (1).
  • the innermost fold lines (8) will define the base of the packaging once the product (7) to be packaged is introduced, and similarly they will define the folding wings of the packaging.
  • the folding wings will comprise at least one additional longitudinal fold line (9) that will define the area for attaching (11) the flexible sheet (1) to the semi-rigid sheet (2).
  • the semi-rigid sheet (2) will have beveled cuts (13) from the intersection points of the inner fold lines or split lines (8), which lines define the base of the packaging when the product (7) has been introduced, to the corners of the semi-rigid sheet (2).
  • the folding wings defined by the cuts (13) and the inner fold lines (8) have at least one longitudinal fold line (9) that will define the area for attaching (11) the flexible sheet (1) to the semi-rigid sheet (2).
  • Figures 12 and 13 show a fourth embodiment of the invention in which the semi-rigid sheet (1) includes two tabs.
  • One of the longer sides of the semi-rigid sheet comprises a permanent adhesive strip (16) that fixes two sheets together.
  • the long side that does not include a permanent attachment between the semi-rigid sheet and the flexible sheet comprises having a strip of removable adhesive material.
  • the tabs each include a longitudinal removable adhesive strip.
  • the three removable adhesive strips will be preferably protected with a paper strip (6) as the conventional postal envelopes.
  • the two tabs (15) are folded on themselves by fold lines (14), which match the outline of the packaging once completely sealed, and once the respective paper strips (6) have been removed, the outer face of the of the flexible sheet (1) is attached thereto.
  • These tabs (15) create two side strips of rigid material that provide greater strength and better appearance to the packaging.
  • the length of the flexible sheet (1) coincides with the distance between the two fold lines 14 and the width to the length of the semi-rigid sheet, the width of the flexible sheet may be slightly greater than that of the semi-rigid sheet in order to compensate the volume of product to be packaged.
  • the packaging object of the invention comprises , at least in two of its adjacent sides, removable adhesive strips that allow attaching and detaching the transparent sheet to the semi-rigid sheet. It further comprises that in at least one (12) of the sides opposite to the at least two adjacent sides comprising the removable adhesive strips, the flexible sheet (2) is permanently attached to the semi-rigid sheet (1).
  • the packaging will have a permanent adhesive side (12) and three with removable adhesive (11).
  • a removable adhesive does not mean an adhesive that can be put on and take off, but an adhesive that allows the attachment and detachment from, in this case the transparent sheet and the semi-rigid sheet, several times while maintaining perfect sealing conditions.
  • the packaging will have a tab or flap on the opposite side comprising having permanent adhesive for fixing the semi-rigid sheet and flexible sheet, which is bent upon itself along a fold line (14) so as once the flexible sheet has been attached on the semi-rigid sheet, this tongue, which comprises a removable adhesive strip is attached on the outer face of the flexible sheet providing the packaging a tighter seal and with greater rigidity.
  • Figures 16 shows a profile view of the fourth and fifth embodiment described above.

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  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Claims (11)

  1. EMBALLAGE POUR DENRÉES ALIMENTAIRES constitué de deux feuilles : une première feuille (2), qui est flexible, et une seconde feuille (1), sélectionnée entre des feuilles rigides et semi-rigides, les deux feuilles étant unies (1, 2) par leurs bords, à l'exception d'une embouchure qui comprend un moyen permettant de faciliter l'entrée de la denrée à emballer (7). Ledit emballage est utilisé pour la distribution d'aliments frais dans des linéaires et des points de vente ; la seconde feuille (1) est fermée sur toute sa périphérie par la première feuille (2), sauf sur trois côtés ouverts, dotés de moyens de fermeture pour l'introduction de la denrée à emballer (7). Lesdits moyens de fermeture des côtés ouverts sont sélectionnés entre des moyens adhésifs de fermeture (5) recouverts de bandes de protection amovibles (6) et un moyen de fermeture étanche à la pression, où la constitution de la première feuille (2) est sélectionnée entre un matériau totalement transparent et un matériau partiellement transparent, où la constitution de la seconde feuille (1) est sélectionnée entre un matériau en plastique et un matériau en carton laminé, au moins, sur sa face interne. Ledit emballage est caractérisé en ce que la seconde feuille est plate et la seconde feuille ou les deux feuilles (1, 2) ont des moyens (3, 4) permettant de l'adapter au volume, afin de donner à l'emballage la forme géométrique correspondant à celle de la denrée à emballer (7) ; de la sorte, lesdits moyens sont sélectionnés entre des lignes de pliage et des lignes de division (3) pour la seconde feuille (1), permettant ainsi leur pliage, et sont sélectionnés entre des plis et ondulations (4) pour la première feuille (2) pour en faciliter l'extension.
  2. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 1, caractérisée en ce que les moyens de fermeture pour le côté ouvert comprennent une fixation réversible des feuilles (1, 2), de manière que l'utilisateur puisse avoir accès à la denrée emballée (7) et la remettre dans l'emballage fermé à plusieurs reprises.
  3. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon l'une quelconque des revendications précédentes, caractérisé en ce que la première feuille (2) est entièrement en matière plastique.
  4. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon l'une quelconque des revendications précédentes, caractérisée en ce que la première feuille (2) dépasse en dimensions la seconde feuille (1) dans la zone de l'embouchure, afin d'établir le moyen de fermeture par pliage du reste.
  5. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 1, caractérisée en ce que la première feuille (2) adhère de manière permanente, au moins, à l'un des côtés plus longs (12) de la feuille semi-rigide (1) et adhère aux autres côtés (11) de la seconde feuille (1) au moyen d'un adhésif amovible.
  6. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 5, caractérisé en ce que les deux feuilles sont fixées de manière permanente le long d'un côté et en ce que les côtés restants sont fixés avec des bandes adhésives amovibles.
  7. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 6, caractérisée en ce que la seconde feuille comprend une ailette sur le côté opposé qui relie la première feuille à la seconde par un adhésif permanent, qui a une bande adhésive pour l'assemblage de l'ailette à la face externe de la première feuille une fois que la première feuille (2) a été appliquée sur la seconde (1).
  8. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon l'une quelconque des revendications précédentes, caractérisé en ce que les bandes (6) adhésives amovibles sont recouvertes d'une bande en papier de protection.
  9. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 1, caractérisé en ce que la seconde feuille comprend un ensemble de couches sélectionnées parmi :
    - une couche unique en matière plastique ;
    - une couche inférieure en matériau rigide et une couche supérieure en matière plastique, la couche en matière plastique étant en contact avec la denrée à emballer ; et
    - une couche inférieure en matériau rigide, une couche intermédiaire en matériau métallique et une couche supérieure en matière plastique, la couche en matière plastique étant en contact avec la denrée à emballer.
  10. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 5, caractérisé en ce que la seconde feuille comprend, au moins, deux ailettes (15), au moins sur deux des côtés, de sorte que la jonction entre la première feuille et la seconde s'effectue au moyen de bandes adhésives amovibles pour unir les ailettes de la face externe de la première feuille une fois que la première feuille (2) a été appliquée sur la seconde (1).
  11. EMBALLAGE POUR DENRÉES ALIMENTAIRES, selon la revendication 10, caractérisé en ce qu'il comprend des bandes adhésives permanentes ainsi que des bandes adhésives amovibles, de manière à assurer l'inviolabilité de la denrée une fois que celle-ci est introduite dans l'emballage.
EP20110380031 2010-04-07 2011-04-07 Emballage pour produits alimentaires Not-in-force EP2374725B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201030503A ES2374239B1 (es) 2010-04-07 2010-04-07 Envase para productos alimenticios.
ES201130551A ES2393771B2 (es) 2011-04-07 2011-04-07 Envase para productos alimenticios, mejorado.

Publications (2)

Publication Number Publication Date
EP2374725A1 EP2374725A1 (fr) 2011-10-12
EP2374725B1 true EP2374725B1 (fr) 2013-03-13

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Application Number Title Priority Date Filing Date
EP20110380031 Not-in-force EP2374725B1 (fr) 2010-04-07 2011-04-07 Emballage pour produits alimentaires

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EP (1) EP2374725B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210070007A1 (en) * 2019-09-06 2021-03-11 Innovation Fiber, LLC Compostable Laminated Food Tray

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1307397B1 (it) * 1999-10-05 2001-11-06 Giorgio Trani Contenitore a busta con facce realizzate con materiali di consistenzae/o di caratteristiche diverse e procedimento per la sua realizzazione
US20090229717A1 (en) * 2008-03-11 2009-09-17 Thor Halseth Apparatus and system and method of providing easy protection to patrons holding multi-use pagers and the placement of advertising media thereon
EP2116476B1 (fr) * 2008-05-06 2014-02-12 Alpem Sachet d'emballage préformé pour des produits alimentaires et pile de tels sachets

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