EP1659068A1 - Kunststoffschale für Einpackung von Lebensmitteln, die zu Flüssigkeitsabsonderung neigen - Google Patents

Kunststoffschale für Einpackung von Lebensmitteln, die zu Flüssigkeitsabsonderung neigen Download PDF

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Publication number
EP1659068A1
EP1659068A1 EP05025100A EP05025100A EP1659068A1 EP 1659068 A1 EP1659068 A1 EP 1659068A1 EP 05025100 A EP05025100 A EP 05025100A EP 05025100 A EP05025100 A EP 05025100A EP 1659068 A1 EP1659068 A1 EP 1659068A1
Authority
EP
European Patent Office
Prior art keywords
tray
plastic material
sheet
packaging
pla
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.)
Withdrawn
Application number
EP05025100A
Other languages
English (en)
French (fr)
Inventor
Cesare Vannini
Fabio Fiordelisi
Walter Movilli
Federico Lanzani
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.)
COOPBOX Eastern sro
Original Assignee
Coopbox Europe SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coopbox Europe SpA filed Critical Coopbox Europe SpA
Publication of EP1659068A1 publication Critical patent/EP1659068A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2069—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
    • B65D81/2076—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container

Definitions

  • the present invention refers in general to the food packaging industry.
  • the invention relates to a tray for the packaging of foods susceptible of releasing serum, such as for example meat and fish.
  • the packagings for meat and fish mostly used in supermarkets, composed of a tray of plastic material containing slices or pieces of meat or fish enclosed in a film of transparent plastic material, are well known. It is also known that such foods release serum and that the presence of serum inside the packaging makes the same of little appeal to the customer.
  • the absorbing layer may be placed on the inner surface of a plastic material tray or interposed between two sheets of plastic material, and in this latter case the sheet in contact with the food is provided with holes for the passage of the serum released by the food in the direction of the interposed absorbing layer.
  • trays in expanded polystyrene have been made available, capable of absorbing the serum released by meat or fish.
  • the absorption of the serum is due to the presence of a high percentage of open cells in the expanded foam structure, which function as receptacles for the liquids which penetrate into the foam through holes made on the bottom of the tray.
  • the problem at the basis of the present invention was that of making available a tray of plastic material suitable for the packaging of foods susceptible of releasing liquids, for example serum, such as meat and fish, which could enable to remove the released liquid even at small thicknesses of the plastic material sheet and which could enable to package such foods under modified atmosphere in a cost effective manner and without resorting to complicated technical solutions.
  • releasing liquids for example serum, such as meat and fish
  • the aforementioned technical problem is solved by the use of a plastic material tray for packaging foods susceptible of releasing liquids, in which such tray is made of a sheet of an expanded plastic material of high water permeability.
  • the aforementioned expanded plastic material is polylactic acid (PLA) or a polymeric mixture containing PLA.
  • the aforementioned sheet is substantially open-celled.
  • the present invention provides a tray of the type described above, which has a bottom and side walls and is made of a sheet of an expanded plastic material of high water permeability coupled with a film of the same hydrophilic polymeric plastic material, the aforementioned film constituting the food-facing surface of the bottom and of the walls.
  • the sheet of high water permeability expanded plastic material is preferably composed of PLA or of a polymeric mixture containing PLA and is conveniently substantially open-celled.
  • the tray according to the invention has the advantage of enabling a greater liquid removal, compared to known trays of open-cell plastic material, typically polystyrene, of the same sheet thickness. This is due to the fact that the liquid is not simply absorbed and retained within the structure of the expanded sheet but can also partly evaporate out, by virtue of the intrinsic properties of the high water permeability polymeric material.
  • a modified atmosphere packaging is made available for a food susceptible of releasing liquids, comprising
  • the aforementioned expanded polymeric plastic material of high water permeability is preferably PLA or a polymeric mixture containing PLA.
  • the aforementioned sheet is preferably substantially open-celled and is conveniently coupled to a film of the same high water permeability polymeric plastic material, which forms the inner surface of the bottom and walls.
  • the gas-impermeable film is preferably composed of PLA.
  • Such packaging is accomplished with a method which comprises the steps of providing a tray of plastic material, having a bottom and side walls, made of a sheet of an expanded polymeric plastic material of high water permeability,
  • the aforementioned sheet is substantially open-celled and is conveniently coupled with a film of the same high water permeable polymeric plastic material, which forms the inner surface of the bottom and of the walls.
  • the expanded polymeric plastic material of which the sheet and the film coupled to it are made is preferably polylactic acid or a polymeric mixture containing polylactic acid.
  • the gas-impermeable film may be any film with gas barrier properties used in modified atmosphere packaging but is preferably a film also of PLA or of a polymeric mixture containing PLA.
  • the water contained in the liquid absorbed inside the expanded sheet can partly evaporate out, thus increasing the ability of the packaging to remove the liquid discharged by the food.
  • the tray therefore permits a certain outward evaporation of the water while having a good gas-impermeability (typically oxygen and carbon dioxide) which constitute the modified atmosphere within the packaging.
  • a good gas-impermeability typically oxygen and carbon dioxide
  • a tray V according to the present invention comprises a bottom 1 and side walls 2, provided with a perimeter edge 3.
  • both the bottom and the side walls of the tray V are composed of a sheet 4 of open-cell expanded PLA coupled to a PLA film 5, which covers the inner surface of the tray V.
  • FIG 3 a modified atmosphere packaging is illustrated according to the present invention comprising a tray V like that illustrated with reference to figures 1 and 2, consisting of a sheet 4 of open-cell expanded PLA, coupled to a PLA film 5, a food 6 susceptible of releasing liquids and a film 7 which constitutes a barrier to gases, of PLA also, sealed on the edges 3 of the tray V to provide a watertight seal.
  • FIG 4 is illustrated an alternative embodiment of the packaging according to the present invention, in which the PLA film 7, which forms a barrier to gas, is sealed on the edges 3 of the tray V, which exclusively consists of a substantially open-celled expanded PLA sheet.
  • Trays according to the embodiment of the present invention illustrated in figure 2 were prepared by thermoforming starting from a sheet of expanded PLA of 1 mm in thickness and containing approximately 70% of open cells (measurement carried out with an Ultrafoam pycnometer model by Quantachrom), coupled with a PLA film of 30 ⁇ m in thickness and having a water vapour permeability of 55g/m 2 day.
  • the trays had the following dimensions: 205 mm in length, 160 mm in width, 35 mm in height and displayed the PLA film placed so as to cover the inner surface of the bottom and of the walls.
  • the packagings thus prepared were placed in a refrigerator at approximately 4°C for a week. After such period the meat still exhibited a pleasant appearance and, surprisingly, no liquid deposits could be observed.
  • a quantity of approximately 1 g of released liquid per day is calculated, for a total of 4 g over the four days. Consequently all of the liquid released by the food can permeate through the film and reach the underlying open-cell structure, even in the absence of holes along the tray bottom.
  • Trays according to the present invention were prepared by thermoforming starting from a sheet of expanded PLA 1 mm in thickness and containing approximately 70% of open cells (measurement carried out with an Ultrafoam pycnometer from Quantachrom).
  • the trays had the following dimensions: 205 mm in length, 160 mm in width, 35 mm in height.
  • Such trays were utilised as they are, without being internally covered with PLA film, to package fresh beef.
  • the packaging was carried out by placing meat portions of approximately 250 g in weight inside each tray and closing it all with a PLA film 30 ⁇ m in thickness, heat-sealed on the edges of the tray.
  • the meat lost an average of 5.5 g of weight in 2 days, while the trays increased their weight by approximately 1 g on average.
  • a further experiment was carried out utilising PLA trays of 223 mm in length, 152 mm in width and 30 mm in height, produced as in example 2. Such trays were filled with approximately 250 cc of water and seal-closed by means of a plate of water-impermeable material attached to the edges with silicon. The weight variation of the packaging over time thus obtained was then observed. The weight variation of the packaging thus obtained is to be exclusively ascribed to the phenomenon of permeation through the walls and bottom of the tray. Such experiment was carried out for comparison with trays made of polystyrene (PS) of the same dimensions of those in PLA described above.
  • PS polystyrene
EP05025100A 2004-11-22 2005-11-17 Kunststoffschale für Einpackung von Lebensmitteln, die zu Flüssigkeitsabsonderung neigen Withdrawn EP1659068A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20040307 ITMO20040307A1 (it) 2004-11-22 2004-11-22 Vaschetta in materiale plastico per il confezionamento di alimenti suscettibili di rilasciare liquidi.

Publications (1)

Publication Number Publication Date
EP1659068A1 true EP1659068A1 (de) 2006-05-24

Family

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Family Applications (1)

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EP05025100A Withdrawn EP1659068A1 (de) 2004-11-22 2005-11-17 Kunststoffschale für Einpackung von Lebensmitteln, die zu Flüssigkeitsabsonderung neigen

Country Status (2)

Country Link
EP (1) EP1659068A1 (de)
IT (1) ITMO20040307A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353699A (zh) * 2018-12-15 2019-02-19 林光琴 酱卤肉制品保鲜气调包装

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182139A2 (de) 1984-11-20 1986-05-28 Lin Tec Verpackungstechnik GmbH Schale zur Aufnahme von Nahrungsmitteln, sowie Verfahren und Vorrichtung zu deren Herstellung
EP0507554A1 (de) * 1991-04-01 1992-10-07 MITSUI TOATSU CHEMICALS, Inc. Abbaubarer Schaum, Verfahren zu seiner Herstellung und seine Verwendung
EP0544562A1 (de) 1991-11-28 1993-06-02 Vitembal Verfahren und Anlage zur Herstellung von Schalen zur Lebensmittelverpackung und mit diesem Verfahren hergestellte Schalen
EP0642907A2 (de) 1993-08-02 1995-03-15 Hoechst Aktiengesellschaft Formgebilde aus einem thermoplastischen Kunststoff, Verfahren zu seiner Herstellung sowie seine Verwendung
EP0754632A1 (de) 1995-07-17 1997-01-22 SIRAP-GEMA S.p.A. Blatt aus expandiertem Kunststoffmaterial mit absorbierenden Eigenschaften hinsichtlich wässeriger Flüssigkeiten
EP0965426A2 (de) 1998-06-12 1999-12-22 C.C.P.L. - Consorzio Cooperative di Produzione e Lavoro Verfahren zur Herstellung von Fleischverpackungsschalen
WO2000046125A1 (en) 1999-02-06 2000-08-10 Linpac Plastics Limited Packaging tray formed from absorbant material
EP1211193A1 (de) 2000-11-30 2002-06-05 SIRAP-GEMA S.p.A. Vakuumverpackung oder Verpackung unter modifizierter Atmosphäre von Flüssigkeiten absondernden Nahrungsmitteln
US20030038405A1 (en) * 2001-08-20 2003-02-27 Bopp Richard C. Method for producing semicrystalline polylactic acid articles
EP1297949A1 (de) * 2001-09-27 2003-04-02 Tohcello Co., Ltd. Biologisch abbbaubare biaxial gereckte Polyesterfolie und Verbundfolie
EP1348640A2 (de) * 2002-03-29 2003-10-01 SIRAP-GEMA S.p.A. Vakuumverpackung oder Verpackung unter modifizierter Atmosphäre von Flüssigkeiten absondernden Nahrungsmitteln
EP1466840A1 (de) * 2001-12-20 2004-10-13 Asahi Kasei Life & Living Corporation Verfahren zur herstellung eines gasaustauschpakets

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182139A2 (de) 1984-11-20 1986-05-28 Lin Tec Verpackungstechnik GmbH Schale zur Aufnahme von Nahrungsmitteln, sowie Verfahren und Vorrichtung zu deren Herstellung
EP0507554A1 (de) * 1991-04-01 1992-10-07 MITSUI TOATSU CHEMICALS, Inc. Abbaubarer Schaum, Verfahren zu seiner Herstellung und seine Verwendung
US5447962A (en) * 1991-04-01 1995-09-05 Mitsui Toatsu Chemicals, Inc. Degradable foam and use of same
EP0544562A1 (de) 1991-11-28 1993-06-02 Vitembal Verfahren und Anlage zur Herstellung von Schalen zur Lebensmittelverpackung und mit diesem Verfahren hergestellte Schalen
EP0642907A2 (de) 1993-08-02 1995-03-15 Hoechst Aktiengesellschaft Formgebilde aus einem thermoplastischen Kunststoff, Verfahren zu seiner Herstellung sowie seine Verwendung
EP0754632A1 (de) 1995-07-17 1997-01-22 SIRAP-GEMA S.p.A. Blatt aus expandiertem Kunststoffmaterial mit absorbierenden Eigenschaften hinsichtlich wässeriger Flüssigkeiten
EP0965426A2 (de) 1998-06-12 1999-12-22 C.C.P.L. - Consorzio Cooperative di Produzione e Lavoro Verfahren zur Herstellung von Fleischverpackungsschalen
WO2000046125A1 (en) 1999-02-06 2000-08-10 Linpac Plastics Limited Packaging tray formed from absorbant material
EP1211193A1 (de) 2000-11-30 2002-06-05 SIRAP-GEMA S.p.A. Vakuumverpackung oder Verpackung unter modifizierter Atmosphäre von Flüssigkeiten absondernden Nahrungsmitteln
US20030038405A1 (en) * 2001-08-20 2003-02-27 Bopp Richard C. Method for producing semicrystalline polylactic acid articles
EP1297949A1 (de) * 2001-09-27 2003-04-02 Tohcello Co., Ltd. Biologisch abbbaubare biaxial gereckte Polyesterfolie und Verbundfolie
EP1466840A1 (de) * 2001-12-20 2004-10-13 Asahi Kasei Life & Living Corporation Verfahren zur herstellung eines gasaustauschpakets
EP1348640A2 (de) * 2002-03-29 2003-10-01 SIRAP-GEMA S.p.A. Vakuumverpackung oder Verpackung unter modifizierter Atmosphäre von Flüssigkeiten absondernden Nahrungsmitteln

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109353699A (zh) * 2018-12-15 2019-02-19 林光琴 酱卤肉制品保鲜气调包装
CN109353699B (zh) * 2018-12-15 2020-04-14 广东荣业食品有限公司 酱卤肉制品保鲜气调包装

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