EP2763906B1 - Récipient de conditionnement à retrait d'air - Google Patents

Récipient de conditionnement à retrait d'air Download PDF

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Publication number
EP2763906B1
EP2763906B1 EP12788418.7A EP12788418A EP2763906B1 EP 2763906 B1 EP2763906 B1 EP 2763906B1 EP 12788418 A EP12788418 A EP 12788418A EP 2763906 B1 EP2763906 B1 EP 2763906B1
Authority
EP
European Patent Office
Prior art keywords
area
shielding element
venting
packaging container
venting area
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.)
Active
Application number
EP12788418.7A
Other languages
German (de)
English (en)
Other versions
EP2763906A1 (fr
Inventor
Olaf BÖCKMANN
Sven BRINKMANN
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.)
Nordfolien GmbH
Original Assignee
Nordfolien 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 Nordfolien GmbH filed Critical Nordfolien GmbH
Priority to PL12788418T priority Critical patent/PL2763906T3/pl
Publication of EP2763906A1 publication Critical patent/EP2763906A1/fr
Application granted granted Critical
Publication of EP2763906B1 publication Critical patent/EP2763906B1/fr
Active 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags

Definitions

  • the invention relates to a packaging container for bulk materials, in particular a bag or bag made of plastic film, with at least one bulk material enclosing the container wall, which has a longitudinal direction extending in the container, multi-layer venting area of at least one inner layer and an outer layer, wherein the venting area at least an inner and an outer opening, wherein the inner openings are formed as apertures in a strip-shaped surface area of an inner layer of the vent area, wherein the surface area extends over at least a predetermined portion in the extension direction of the vent area, and wherein the at least one outer opening in a vent area formed laterally delimiting seam, wherein the outer opening in the connecting seam in the interior of the venting area a shielding for targeted deflection little
  • the shielding element and the outer opening are arranged in at least one end region of the venting region and wherein the shielding element ends directly at a cross-seam bordering the venting region.
  • Packaging containers of the aforementioned type are known to be used in particular for receiving pourable or free-flowing products, such as, for example, foods, fertilizers or similar products. Such pourable contents are used in the food industry, among others produced by the chemical industry or needed for further processing in a manufacturing process. With the help of the packaging containers, the filling or bulk goods can be transported, stored temporarily or placed on the market in the event of an end product accommodated therein.
  • a generic packaging container is from the DE 10 2007 022 400 A1 known.
  • the ventilation device described here has a vent channel with two separate chambers which are interconnected via an overflow opening, wherein the inner vent opening is provided on the first chamber and the outer vent opening on the second chamber.
  • the DE 20 2006 020 303 U1 describes a packaging container with walls which form a passage area for an air outlet in a double-layered flat air outlet region.
  • the passage region is subdivided into a plurality of chambers connected to one another via in each case at least one passage, on which the inner openings or outer openings are arranged at a distance from one another.
  • the packaging container comprises at least one container wall enclosing the bulk material, which has a multi-layered ventilation region extending in the container longitudinal direction and comprising at least one inner layer and an outer layer with only one chamber.
  • the venting area is equipped with at least one inner and outer opening.
  • the inner openings are formed primarily as openings in a strip-shaped area of the inner layer of the venting area, so that the air from the container interior between the inner and outer layer can flow.
  • the surface area provided with openings extends approximately over the total height of the venting area.
  • At least one outer opening is provided in a connecting seam which delimits the vent area laterally. over which the air entered between the layers can be discharged into the environment. For a safe venting is guaranteed, however, dusting of the contents of the packaging may occur in the case of relatively fine dusty products already during the filling process or a subsequent pressing of the packaging container after filling.
  • Another packaging container with a multi-layered wall region which has layers with air-permeable surface pieces for venting the packaging container, is made of DE 10 2006 017 229 A1 known. Between the layers, a guide member is arranged such that at least the air-permeable surface pieces are covered to prevent dusting of contents.
  • the invention has for its object to improve a packaging container of the aforementioned type to the effect that the packaging container is particularly simple and the Gregutaustrag on the vent area is particularly small.
  • a packaging container for bulk materials in particular a bag or bag made of plastic film, with at least one bulk material enclosing container wall having a extending in the container longitudinal direction, multi-layer vent area of at least one inner layer and an outer layer, wherein the ventilation area at least one inner and outer opening wherein the inner openings are formed as apertures in a strip-shaped surface area of the inner layer of the vent area and the area extends over at least a portion in the extension direction of the vent area and wherein the at least one outer opening is formed in a connecting seam laterally delimiting the vent area and the outer opening in the connecting seam in the interior of the venting area, a shielding element for targeted deflection at least The shielding element and the outer opening are arranged in at least one end region of the venting region and the shielding element ends directly at a transverse seam delimiting the venting region.
  • the venting region has only one chamber the exactly one shielding the inner and outer openings separated from each other and thereby has a length in the range between 10% and 50% of the total length of the vent area, so that the deflected at the free end of the shielding partial flow is merged with at least one further partial flow through Patches of the inner layer has passed through, which are not in the region of the shielding.
  • the packaging container and in particular the ventilation area is substantially simplified. Due to the inventive design of the venting area, only a very small Basal Component, the packaging container and in particular the ventilation area is substantially simplified. Due to the inventive design of the venting area, only a very small Basal Component, the packaging container and in particular the ventilation area is substantially simplified. Due to the inventive design of the venting area, only a very small Basal Component, the packaging container and in particular the ventilation area is substantially simplified. Due to the inventive design of the venting area, only a very small Gregutaustrag.
  • the airflow passing through the outer opening thereby results in at least a negligible amount of particles or at best no particles at all.
  • a shielding element allows an advantageously narrow design of the venting area, which results in material savings.
  • the strip-shaped surface area equipped with inner openings can, for example, extend over the total height of the ventilation area.
  • the shielding element in the interior of the venting region can be formed, for example, from a material section of the plastic film used, for example, for the production of the packaging container, which is attached to the inner and outer layer, extending in the longitudinal direction.
  • a plastic film which can be welded on both sides or a plastic composite film can be used as the container wall.
  • venting region of the packaging container can be produced by, for example, the juxtaposition of two longitudinal edges of a film web folded in its longitudinal direction. It is also conceivable to apply a foil strip on the outer side of a film tube produced by means of an extrusion process. The longitudinal edges of the film web or of the film strip attached to the tubular film are connected, inter alia, by means of welding or adhesive seams.
  • the shielding element is a seam section which separates the outer openings from an immediately adjacent surface section of the strip-shaped surface area of the inner layer equipped with apertures.
  • the design as a seam section represents an advantageously simple way of forming the shielding element, wherein the inner and outer layers of the venting region are directly connected to one another by means of the seam section. This creates separate areas in the still existing as only one chamber venting area.
  • the strip-shaped surface area extends with its openings.
  • On the opposite side of the seam portion is arranged at a predetermined distance from this at least one outer opening in the connecting seam. It is also conceivable provide a plurality of outer openings in the respective connecting seam, through which a correspondingly large air flow can escape.
  • the shielding member preferably extends in the longitudinal direction of the container and thus parallel to the longitudinal sides and the lateral connecting seams of the likewise extending in the longitudinal direction of the container venting area.
  • the shielding element and the outer opening are arranged in at least one end region of the venting region, wherein the shielding element ends directly at a transverse seam delimiting the venting region.
  • the design of the shielding element in an end region of the venting region has the advantage that the packaging container can be vented for a relatively long time, especially during a forced ventilation by means of a press belt, without an increased risk of damage such as, for example, tearing open to have the packaging container.
  • the vented packaging container can then be optimally stacked for further transport. It is for example possible that the shielding element is weakened over a portion of its extension or has a weakening, so that damage to the bag is advantageously excluded in particular in a subsequent vent.
  • a shielding element in the form of a separating seam it is possible, for example over a section of the separating seam, to partially apply a layer between the inner and outer layers of the venting region and thus the Compound debilitating weakening be provided, such as a release varnish.
  • the connection of the separating seam is then separated or interrupted above a certain pressure in the venting area and the overpressure can break down via the weakening point and the outer opening.
  • a shielding element arranged at the end region of the venting region its weakening takes place approximately in the vicinity of the transverse seam. Any arrangement of the weakening is also conceivable.
  • the venting area may preferably extend over the entire height of the packaging container so that the transverse seams closing the venting area simultaneously form the upper and lower closure seams of the packaging container.
  • the shielding element which is preferably in the form of a seam section, is arranged immediately adjacent and parallel to the associated surface piece of the strip-shaped region having the openings.
  • the partial flow of the air flow which enters the venting area through the apertures arranged adjacent to the shielding element, is then immediately deflected initially in the longitudinal direction of the venting area.
  • the partial flow guided along the shielding element is deflected by about 180 degrees, wherein the partial flow is combined with at least one further partial flow which has passed through patches of the inner layer which are not in the region of the shielding element.
  • the further partial flow flows relatively straight in the direction of the outer opening in the connection seam.
  • the shielding element arranged or formed in the interior of the venting region has a length of at least 10% of the total height of the venting region. This ensures that the outer opening of the venting area is arranged at a sufficient distance from the free end of the shielding element. Thus, there is a sufficiently long distance between the free end of the shielding and the outer opening, on which the air flow can lose the previously entrained Gugut particles.
  • the shielding element has a maximum length of only 50% of the total height of the venting area. In the case of a vent area extending in particular over the entire height of the packaging container, the shielding element thus has a length of approximately 50% of the total height of the packaging container. The length of the shielding element is thus in a range between 10% and 50% of the height or length of the venting area.
  • the outer opening by means of an interruption of a lateral connecting seam, wherein the superposed layers of the venting area are connected to one another by means of the connecting seam.
  • the interruption of the vent area laterally delimiting seam represents a structurally simple way to form the necessary outer opening.
  • the tool generating the weld is recessed, so that the superimposed layers remain unconnected to the venting area.
  • To form the outer opening in particular a plurality of interruptions arranged at small distances from each other in the Be provided connecting seam.
  • the ventilation region of which is produced by placing the edge regions of the film web on top of one another, the interruptions in the connecting seam are to be provided which connects the marginal edge of the upper one of the longitudinal edges of the film web to the underlying longitudinal edge.
  • the outer opening is formed by means of at least one weakened portion of the lateral connecting seam.
  • a weakening agent such as, for example, a release varnish
  • the superimposed layers are therefore in this provided with the weakening surface piece when creating a continuous connecting seam a significantly reduced adhesion to each other.
  • the material bond can already be canceled by a each after filling at its ends in each case completely closed by transverse welding seams packaging container is guided by a crimping or squeeze for pressing out the air in the packaging container.
  • the multi-layer vent area between at least one inner and one outer layer is equipped with spacers, at least in some areas.
  • spacers With the use or the formation of spacers between the layers of the venting area, the escape of the air that has come into the packaging container together with the filling material from the packaging interior is advantageously improved.
  • the spacers in particular, possible adhesion forces between the adjoining surfaces of the superimposed layers of the vent area can be avoided, since such intermolecular attraction forces hinder the air flow passing through the vent area.
  • the spacers are as in at least one of formed on superposed layers introduced imprints. By means of such embossing a structurally simple way to maintain a predetermined distance between the layers is created.
  • the embossings can be formed both in sections and over the entire length and width of the vent area extending on one of the layers.
  • the single FIGURE shows a perspective view of a ventable packaging container according to the invention.
  • the gusseted bag 1 with a gusseted bag is called, which has a container enveloping the container 2.
  • the gusseted bag 1 further comprises front wall 3, rear wall 4 formed with the container wall 2 and two side walls 5, 6 present as gussets.
  • a multi-layered ventilation area 7 with an inner layer 8 and an outer layer 9 is provided in the front wall of the bag 1.
  • the venting region 7 having only one chamber has internal openings 10, 10 'and at least one external opening 11.
  • the inner openings 10, 10 ' are formed openings in the inner layer 8 and in a strip-shaped surface area 12 of the inner layer 8. In this case, the surface area 12 extends over the entire height of the ventilation area 7.
  • the outer opening 11 is formed in one of the connecting seams 13, 14 which delimit the ventilation area 7 laterally.
  • a shielding element 15 is arranged, which is associated with the outer opening 11 such that a targeted deflection of at least a partial flow of the venting region 7 passing air stream provides.
  • the shielding element 15 is a seam section 16 extending parallel to the lateral connecting seams 13, 14, which separates the outer opening 11 from a surface section 12 'of the apertures having strip-shaped surface region 12 arranged directly adjacent to the outer opening.
  • Both the shielding element 15 as well as the outer opening 11 are arranged in an end region 17 of the venting region 7, wherein the shielding member 15 adjacent to the venting region 7, and the side gusseted bag 1 at the upper end closing transverse seam 18 directly perpendicular. With the help of the transverse seam 19, the lower end of the bag 1 is closed.
  • the shielding element 15 has a length of at least 10% and a maximum of 50% of the total height of the venting region 7.
  • the outer opening 11 is formed in particular as an interruption of the lateral connecting seam 13, wherein the outer layer 9 is fixed on the inner layer 8 by means of the connecting seams 13, 14.
  • the gusseted bag 1 can be made of a film web or a tube.
  • a separate film strip forming the outer layer is preferably placed on its outer side.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Claims (8)

  1. Contenant de conditionnement pour des produits en vrac, notamment sac ou sachet en un film de matière plastique, avec au moins une paroi de contenant (2) qui comporte une zone de vide d'air (7) multicouches, s'étendant dans la direction du contenant en au moins une couche (8) intérieure et une couche (9) extérieure, la zone de vide d'air (7) comportant au moins un orifice intérieur et extérieur (10, 10' 11), les orifices intérieurs (10, 10') étant conçu en tant que jours dans une zone de surface (12) en forme de bande de la couche intérieure de la zone de vide d'air, la zone de surface (12) s'étendant au moins sur une partie dans la direction d'extension de la zone de vide d'air (7) et l'au moins un orifice extérieur (11) étant conçu dans une soudure d'assemblage (13) délimitant latéralement la zone de vide d'air (7), alors qu'il est associé à l'orifice extérieur (11) dans la soudure d'assemblage (13), à l'intérieur de la zone de vide d'air (7) un élément formant écran (15) pour la déviation ciblée d'au moins un flux partiel du flux d'air passant par la zone de vide d'air (7), l'élément formant écran (15) et l'orifice extérieur (11) étant placés dans au moins une zone d'extrémité (17) de la zone de vide d'air (7) et l'élément formant écran (15) se terminant directement sur la soudure transversale (18) qui délimite la zone de vide d'air (7),
    caractérisé en ce que
    la zone de vide d'air (7) ne comporte qu'un compartiment dans lequel le précisément un élément formant écran (15) sépare l'un de l'autre les orifices intérieurs et extérieur (10, 10', 11), en ayant à cet effet une longueur de l'ordre compris entre 10 % et 50 % de la longueur totale de la zone de vide d'air (7), de sorte que le flux partiel dévié sur l'extrémité libre de l'élément formant écran (15) soit réuni avec au moins un flux partiel supplémentaire, qui a traversé des parties planes de la couche (8) intérieure qui ne se situent pas dans la zone de l'élément formant écran (15).
  2. Contenant de conditionnement selon la revendication 1, caractérisé en ce que l'élément formant écran (15) est une portion de soudure (16) qui sépare l'orifice extérieur (11) d'une partie plane (12') placée directement dans le voisinage de la zone de surface (12) en forme de bande.
  3. Contenant de conditionnement selon l'une quelconque des revendications 1 et 2, caractérisé en ce que l'élément formant écran (15) s'étend approximativement dans la direction longitudinale du contenant.
  4. Contenant de conditionnement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément formant écran (15) est placé dans le voisinage direct et à la parallèle de la partie plane (12') de la zone de surface (12) en forme de bande, comportant les jours.
  5. Contenant de conditionnement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'élément formant écran (15) présente une longueur d'au moins 5 % de la hauteur totale de la zone de vide d'air (7).
  6. Contenant de conditionnement selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'orifice extérieur (11) est conçu au moyen d'au moins une interruption d'une soudure d'assemblage (13) latérale, les couches superposées de la zone de vide d'air (7) étant reliées les unes aux autres au moyen de la soudure d'assemblage (13, 14).
  7. Contenant de conditionnement selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'orifice extérieur (11) est conçu au moyen d'au moins une portion affaiblie de la soudure d'assemblage (13) latérale.
  8. Contenant d'assemblage selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'entre la couche intérieure et extérieure (8, 9), la zone de vide d'air (7) multicouches est équipée d'écarteurs (20, 20').
EP12788418.7A 2011-10-06 2012-10-08 Récipient de conditionnement à retrait d'air Active EP2763906B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12788418T PL2763906T3 (pl) 2011-10-06 2012-10-08 Odpowietrzalny pojemnik opakowaniowy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011106386U DE202011106386U1 (de) 2011-10-06 2011-10-06 Entlüftbarer Verpackungsbehälter
PCT/DE2012/000981 WO2013050025A1 (fr) 2011-10-06 2012-10-08 Récipient de conditionnement à retrait d'air

Publications (2)

Publication Number Publication Date
EP2763906A1 EP2763906A1 (fr) 2014-08-13
EP2763906B1 true EP2763906B1 (fr) 2015-07-01

Family

ID=45373122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12788418.7A Active EP2763906B1 (fr) 2011-10-06 2012-10-08 Récipient de conditionnement à retrait d'air

Country Status (12)

Country Link
US (1) US9156591B2 (fr)
EP (1) EP2763906B1 (fr)
AU (1) AU2012320946B2 (fr)
CA (1) CA2850971C (fr)
DE (1) DE202011106386U1 (fr)
DK (1) DK2763906T3 (fr)
ES (1) ES2548270T3 (fr)
HU (1) HUE025180T2 (fr)
MY (1) MY166094A (fr)
PL (1) PL2763906T3 (fr)
RU (1) RU2605536C2 (fr)
WO (1) WO2013050025A1 (fr)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
US9555947B2 (en) 2012-05-31 2017-01-31 Berry Plastics Corporation Vented steam cooking package
DE202012006946U1 (de) 2012-07-18 2012-08-22 Nordfolien Gmbh Verpackungsbehälter mit Entlüftungsfunktion
DE202014007340U1 (de) * 2014-09-15 2015-12-18 Bischof + Klein Gmbh & Co. Kg Flexibles Verpackungsbehältnis
DE102016220428A1 (de) * 2016-09-27 2018-03-29 Windmöller & Hölscher Kg Ventilsack sowie Verfahren und System zur Herstellung eines Ventilsacks
WO2018156308A1 (fr) * 2017-02-21 2018-08-30 The Procter & Gamble Company Procédés de fabrication de récipients souples ventilés
EP3585687A1 (fr) 2017-02-22 2020-01-01 The Procter and Gamble Company Procédés de fabrication de contenants souples avec des cadres de support structural
US11338975B2 (en) 2018-05-16 2022-05-24 The Procter & Gamble Company Container blanks for flexible packages and methods of making flexible packages
US11167896B2 (en) * 2019-12-09 2021-11-09 Charlotte Squires Contaminant resistant product packaging
US11167897B2 (en) * 2019-10-16 2021-11-09 Charlotte Squires Contaminant resistant product packaging
US20230054277A1 (en) * 2021-08-12 2023-02-23 Cj Cheiljedang Corporation Pouch for retort food

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Publication number Priority date Publication date Assignee Title
DE4408244A1 (de) * 1994-03-11 1995-09-14 Bosch Gmbh Robert Laminat für die Herstellung von Verpackungsbehältern
EP0890521A1 (fr) * 1997-07-09 1999-01-13 Daiwa Gravure Co., Ltd. Sac d'emballage à évent
US6170985B1 (en) * 1997-10-15 2001-01-09 Lyle F. Shabram, Jr. Bag with venting means
JP4059753B2 (ja) * 2002-11-14 2008-03-12 大和グラビヤ株式会社 収納袋
DE102004013469A1 (de) 2004-03-18 2005-10-06 Wacker Polymer Systems Gmbh & Co. Kg Mehrwandiges, sackförmiges Verpackungsmittel
US7543708B2 (en) * 2004-08-23 2009-06-09 United States Gypsum Company Plastic bag for fine powders
DE102006017229B4 (de) * 2006-04-12 2008-06-05 Nordfolien Gmbh Verpackung für Schüttgüter, insbesondere Sack aus Kunststoffolie
DE102006020303A1 (de) 2006-05-03 2007-11-08 Volkswagen Ag Betätigungseinrichtung für eine Fahrzeugbremsanlage
DE102007022400A1 (de) 2006-05-13 2007-11-15 Haver & Boecker Ohg Gebinde
ITMI20070175U1 (it) * 2006-05-13 2007-11-14 Haver & Boecker Ohg Confezione
DE202006020303U1 (de) 2006-10-05 2008-03-20 Bischof + Klein Gmbh & Co. Kg Verpackungsbehältnis
DE202012006946U1 (de) * 2012-07-18 2012-08-22 Nordfolien Gmbh Verpackungsbehälter mit Entlüftungsfunktion

Also Published As

Publication number Publication date
ES2548270T9 (es) 2015-11-24
CA2850971A1 (fr) 2013-04-11
RU2014117948A (ru) 2015-11-20
DK2763906T3 (en) 2015-10-12
EP2763906A1 (fr) 2014-08-13
ES2548270T3 (es) 2015-10-15
US20140241649A1 (en) 2014-08-28
WO2013050025A1 (fr) 2013-04-11
AU2012320946B2 (en) 2016-10-20
PL2763906T3 (pl) 2015-11-30
RU2605536C2 (ru) 2016-12-20
MY166094A (en) 2018-05-24
AU2012320946A2 (en) 2014-05-01
AU2012320946A1 (en) 2014-04-17
US9156591B2 (en) 2015-10-13
HUE025180T2 (en) 2016-02-29
DE202011106386U1 (de) 2011-11-18
CA2850971C (fr) 2019-10-29

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