EP2671818A1 - Emballage d'un produit qui forme un gaz à l'intérieur de l'emballage - Google Patents

Emballage d'un produit qui forme un gaz à l'intérieur de l'emballage Download PDF

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Publication number
EP2671818A1
EP2671818A1 EP12170864.8A EP12170864A EP2671818A1 EP 2671818 A1 EP2671818 A1 EP 2671818A1 EP 12170864 A EP12170864 A EP 12170864A EP 2671818 A1 EP2671818 A1 EP 2671818A1
Authority
EP
European Patent Office
Prior art keywords
gas
packaging
film
cavity
impermeable
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Withdrawn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
EP12170864.8A
Other languages
German (de)
English (en)
Inventor
Jens Kösters
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.)
Nordenia Deutschland Halle GmbH
Original Assignee
Nordenia Deutschland Halle GmbH
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 Nordenia Deutschland Halle GmbH filed Critical Nordenia Deutschland Halle GmbH
Priority to EP12170864.8A priority Critical patent/EP2671818A1/fr
Publication of EP2671818A1 publication Critical patent/EP2671818A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • B65D75/26—Articles or materials wholly enclosed in laminated sheets or wrapper 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
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • 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
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials

Definitions

  • the invention relates to a packaging of a product, which within the packaging, for. B. by metabolic processes or soirchemic reactions, forms a gas.
  • the packaging consists of a film envelope, which forms a closed packaging space for the gas-emitting product.
  • the packaging may be, for example, a packaging of yeast.
  • the yeast is filled into a packaging bag, which is then hermetically sealed.
  • yeast cells produce carbon dioxide through a metabolic process, with the volume of CO 2 released corresponding to a multiple of the amount of yeast. Hermetic sealing prevents CO 2 from escaping.
  • other packaging goods are conceivable which form gases due to metabolic processes or chemical reactions or even temperature changes.
  • Film packaging consisting of a prefabricated bag or formed in a combined manufacturing and filling process as a hose and simultaneously filled and hermetically sealed, are used in practice for a variety of pourable or flowable products.
  • the packaging When filled, the packaging is stable. With increasing removal of the product, however, the packaging loses its dimensional stability. This complicates a metered product removal. The problem of insufficient dimensional stability also arises in pourable and flowable products which form gases through metabolic processes or chemical reactions.
  • the gas formation within the hermetically sealed packaging space has the consequence that the packaging until the first opening with a corresponding design of the bag, z. B. as a gusseted bag is dimensionally stable. If the Packaging is opened for product removal, escapes the gas and the packaging loses its dimensional stability. There is a need to stiffen the envelope of the film package, at least in sections, to improve handling of the package during product removal.
  • WO 96/01775 A1 is a made of the film packaging for liquids known.
  • the package consists of a two-ply laminate, with the layers of the laminate joined to area sections that bound air-filled chambers circumferentially. The air can not escape from the cavities of the laminate and forms air cushions which stiffen the wall of the package.
  • the preparation of a two-ply laminate containing pressurized air chambers requires elaborate modifications of the lamination process. Further, the processing of an air-cushioned laminate having thin-walled areas bonded together and air-cushioned, thick-walled portions is difficult. The production of such packaging bags are expensive as a result.
  • the invention has for its object to provide for products that form gases during storage, a film packaging that has a stiffened by gas cushion film wrap after opening the package.
  • the film envelope should consist of a packaging material which is easy to process and does not contain any gas-filled chambers during processing.
  • the packaging according to the invention consists of a film casing, which forms a closed packaging space for a product, which within the
  • the film envelope has at least one two-layered section designed as a chamber, which is bounded on the inside of the packaging by a gas-permeable inner film and on the outside of the packaging by a substantially gas-impermeable packaging material.
  • the gas formed by the product permeates through the inner film and forms a gas cushion in a cavity of the film casing delimited by the outer packaging material and the inner film, in which a pressure can build up which corresponds to the pressure of the packaging space of the hermetically sealed packaging.
  • the gas escapes from the packaging space, while the gas cushion, which is trapped between the inner film and the packaging material on the outside of the packaging, at least partially retained and the film casing stiffened.
  • the film envelope is made of a two-ply laminate which has on the outside a substantially gas-impermeable layer of a single or multi-layer packaging material and on the inside of the packaging a layer of a gas-permeable inner film.
  • the two layers of the laminate are connected to surface sections which bound at least one cavity circumferentially. Within this cavity is formed during storage of a packaged product, which forms a gas by a metabolic process or by a chemical reaction, a gas cushion, which consists of the output of the packaged gas.
  • the surface portion of the film envelope containing the cavity may, for example, be provided near the packaging section which is opened for the purpose of product removal. Furthermore, it is particularly advisable to provide the bottom and head region of a packaging with a corresponding cavity, which is filled by the gas emitted by the product.
  • local connections between the outer packaging material and the gas-permeable film may be provided to stabilize the shape of the cavity.
  • the additional local connections prevent uncontrolled expansion of the cavity.
  • the two layers of the laminate may be adhered to each other, wherein the adhesive is applied in a pattern of adhesive surfaces and adhesive-free surfaces and disposed between the layers of the laminate.
  • the adhesive-free surfaces are surrounded by adhesive surfaces and form cavities which are filled with gas by diffusion of the gas discharged from the packaged goods.
  • the layers of the laminate in strip-shaped sections are glued together and connected within the adhesive-free area by at least one frame-shaped circumferential sealing seam, wherein the sealing seam bounded a circumferentially closed cavity to form a gas cushion.
  • the outer gas-impermeable layer expediently consists of a composite film which has a sealable carrier layer and a gas-impermeable outer layer.
  • a material web which has a sealable carrier layer and a gas-impermeable outer layer, and a gas-permeable inner film are adhesively bonded to one another by adhesive lamination.
  • This composite can be further processed as a roll product for bag production. In the film web first seals are introduced, which set the gas cushion areas. Subsequently, the material web can be converted into a film casing and further processed into the finished packaging.
  • An alternative embodiment of the invention provides that the film envelope is made in one layer from a substantially gas-impermeable packaging material and that at least one film sheet of a gas-permeable film is arranged on the inside of the packaging, which is connected along its circumference with the packaging material.
  • the gas-permeable inner film expediently has a gas permeability for the gas formed by the packaged product of 400 to 40,000 cm 3 / (m 2 ⁇ d ⁇ bar).
  • the gas permeability is determined according to DIN 53380-3 at a relative humidity of 85% and a temperature of 23 ° C.
  • the gas-permeable inner film preferably consists of a polyolefin.
  • Polyolefins are very permeable to gases, especially CO 2 , which is primarily produced during a metabolic process. The lower the density of the polyolefin, the more permeable the material is.
  • As a gas-permeable inner film are especially polyethylene and polypropylene. Further, COC, EVA and other polyolefin copolymers are usable.
  • the gas permeability is inversely linearly proportional to the film thickness.
  • the inner film has a thickness of less than 30 microns. Particularly preferred is a film thickness between 5 microns and 25 microns.
  • the packaging material on the outside of the packaging has only a low gas permeability for the gas released from the packaged product and consists for example of OPA or PET or a composite film which has a sealable carrier layer and a gas-impermeable outer layer (OPA, PET, BOPP).
  • OPA gas-impermeable outer layer
  • the packaging material on the outside of the packaging may consist of a multi-layer film, a Gas barrier layer, for example, from EVOH, a polyamide or a SIOX coating or a gas barrier layer in the form of a metallization.
  • a pressure relief opening may be provided in the film envelope in a surface portion outside of the enclosed in the film envelope cavity, which is formed for example as a degassing slot.
  • the pressure relief opening allows only small amounts of gas and is designed so that can build up within the packaging space sufficient for the function of the packaging of the invention gas pressure.
  • the pressure relief opening opens in an adhesive-free area between the gas-permeable inner film and the gas-impermeable packaging material.
  • the pressure relief port may include a one-way valve and extend from the outside of the package to the packaging space.
  • the packaging shown consists of a film envelope which forms a closed packaging space for a product which forms a gas within the packaging.
  • the packaged goods can be, for example, liquid yeast, which generates carbon dioxide within the hermetically sealed packaging space through a metabolic process.
  • the volume of the amount of CO 2 released can correspond to up to five times the amount of packaged yeast. Due to the hermetic seal, the CO 2 can not escape.
  • the packaging consists in the embodiment of Fig. 1 from a stand-up pouch, which has at its head end a closed with a screw cap pouring 13. By sealing seams 14 of the packaging space is hermetically closed.
  • the film envelope has at least one two-ply section which is bounded on the inside of the packaging by a gas-permeable inner film 1 and on the outside of the packaging by a substantially gas-impermeable packaging material 2.
  • the gas formed by the product permeates through the inner film 1 and forms in a bounded by the outer packaging material 2 and the inner film 1 cavity 3 of the film envelope, a gas cushion, which is at least partially preserved after opening the package and stiffen the film envelope.
  • the gas-filled cavities 3 are arranged on a front wall of the bag package in order to increase the stability of the film packaging during pouring.
  • the head and the floor area can be stiffened accordingly.
  • the film envelope is made of a two-ply laminate, which on the outside has a substantially gas-impermeable layer 2 of a single or multi-layered packaging material and on the inside of the packaging a layer of a gas-permeable inner film 1.
  • the two layers of the laminate are connected to surface sections which bound at least one cavity 3 circumferentially. Within the cavity 3 local connections between the outer packaging material 2 and the gas-permeable film 1 may be provided for stabilizing the shape of the cavity.
  • the two layers of the laminate are glued together, wherein the adhesive 4 is arranged in a pattern of adhesive surfaces 5 and adhesive-free surfaces between the layers 1, 2 of the laminate.
  • the gas-permeable inner film 1 has a gas permeability to the gas formed by the packaged product of at least 400 cm 3 / (m 2 ⁇ dbar), at 23 ° C. and a relative humidity of 85% (DIN 53380-3).
  • the gas permeability of the inner film can be up to 40,000 cm 3 / (m 2 ⁇ d ⁇ bar).
  • the inner film is preferably made of a polyolefin, in particular a low density polyethylene and has a film thickness between 5 .mu.m and 30 .mu.m.
  • the packaging material on the outside of the packaging 2 is essentially impermeable to the gas formed by the packaged product and, in the exemplary embodiment, consists of OPA or PET.
  • the layers of the laminate in strip-shaped sections 6, 7 are glued together and connected within the adhesive-free area by at least one frame-shaped circumferential sealing seam 8.
  • the sealed seam 8 defines a circumferentially closed cavity 3 for forming a gas cushion.
  • the inner film 1 of the laminate consists of a polyolefin, in particular a low-density polyethylene and has a film thickness between 5 .mu.m and 30 .mu.m.
  • the outer gas-permeable layer 2 consists of a composite film which has a sealable carrier layer 9 and a gas-impermeable outer layer 10.
  • the composite foil may in particular consist of the material pairings OPA / PE, PET / PE or BOPP / PE.
  • the foil cover of in Fig. 3 shown packaging has at least one pressure relief opening 11 in a surface portion outside of the enclosed in the film envelope cavity 3.
  • the pressure relief opening 11 opens in an adhesive-free region 12 between the gas-permeable inner film 1 and the gas-impermeable composite film 2 on the outside of the packaging.
  • a part of the gas discharged from the packaged material permeates through the inner liner 1 and is discharged to the outside through the pressure relief port 11. Only in the area of the cavity 3 enclosed by the sealing seam 8 does a gas cushion build up which stiffen the film envelope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
EP12170864.8A 2012-06-05 2012-06-05 Emballage d'un produit qui forme un gaz à l'intérieur de l'emballage Withdrawn EP2671818A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12170864.8A EP2671818A1 (fr) 2012-06-05 2012-06-05 Emballage d'un produit qui forme un gaz à l'intérieur de l'emballage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12170864.8A EP2671818A1 (fr) 2012-06-05 2012-06-05 Emballage d'un produit qui forme un gaz à l'intérieur de l'emballage

Publications (1)

Publication Number Publication Date
EP2671818A1 true EP2671818A1 (fr) 2013-12-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12170864.8A Withdrawn EP2671818A1 (fr) 2012-06-05 2012-06-05 Emballage d'un produit qui forme un gaz à l'intérieur de l'emballage

Country Status (1)

Country Link
EP (1) EP2671818A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6193535B1 (ja) * 2017-03-07 2017-09-06 花王株式会社 容器
JP2018144888A (ja) * 2017-08-09 2018-09-20 花王株式会社 容器
US10287079B2 (en) * 2013-01-25 2019-05-14 Toppan Printing Co., Ltd. Flexible package

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597786A (en) * 1945-05-18 1948-02-03 Wingfoot Corp Package
WO1996001775A1 (fr) 1994-07-08 1996-01-25 Danapak Holding A/S Poche de conditionnement a canaux d'air rigidifiants
EP0905041A2 (fr) * 1997-09-30 1999-03-31 Cryovac, Inc. Emballage comprenant une enceinte interne perméable au gaz et une enceinte externe imperméable au gaz adhérée de façon pelable à l'enceinte interne
DE102005002301A1 (de) * 2005-01-17 2006-07-27 Georg Menshen Gmbh & Co. Kg Beutel zur Aufnahme von Flüssigkeiten, Schüttgütern oder Gegenständen
US20070110854A1 (en) * 2005-11-02 2007-05-17 Bagley Perry S Food Bag With a Natural Preservative For Providing Extended Shelf-Life
US20110081460A1 (en) * 2009-10-06 2011-04-07 Cryovac, Inc. Suspension packaging with on-demand oxygen exposure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597786A (en) * 1945-05-18 1948-02-03 Wingfoot Corp Package
WO1996001775A1 (fr) 1994-07-08 1996-01-25 Danapak Holding A/S Poche de conditionnement a canaux d'air rigidifiants
EP0905041A2 (fr) * 1997-09-30 1999-03-31 Cryovac, Inc. Emballage comprenant une enceinte interne perméable au gaz et une enceinte externe imperméable au gaz adhérée de façon pelable à l'enceinte interne
DE102005002301A1 (de) * 2005-01-17 2006-07-27 Georg Menshen Gmbh & Co. Kg Beutel zur Aufnahme von Flüssigkeiten, Schüttgütern oder Gegenständen
US20070110854A1 (en) * 2005-11-02 2007-05-17 Bagley Perry S Food Bag With a Natural Preservative For Providing Extended Shelf-Life
US20110081460A1 (en) * 2009-10-06 2011-04-07 Cryovac, Inc. Suspension packaging with on-demand oxygen exposure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10287079B2 (en) * 2013-01-25 2019-05-14 Toppan Printing Co., Ltd. Flexible package
JP6193535B1 (ja) * 2017-03-07 2017-09-06 花王株式会社 容器
WO2018163269A1 (fr) * 2017-03-07 2018-09-13 花王株式会社 Récipient
US11332292B2 (en) 2017-03-07 2022-05-17 Kao Corporation Container
JP2018144888A (ja) * 2017-08-09 2018-09-20 花王株式会社 容器

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