EP0912420B1 - Recipient pourvu d'ouvertures d'equilibrage de la pression - Google Patents

Recipient pourvu d'ouvertures d'equilibrage de la pression Download PDF

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Publication number
EP0912420B1
EP0912420B1 EP97931672A EP97931672A EP0912420B1 EP 0912420 B1 EP0912420 B1 EP 0912420B1 EP 97931672 A EP97931672 A EP 97931672A EP 97931672 A EP97931672 A EP 97931672A EP 0912420 B1 EP0912420 B1 EP 0912420B1
Authority
EP
European Patent Office
Prior art keywords
container
inner bag
outer container
pressure compensation
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97931672A
Other languages
German (de)
English (en)
Other versions
EP0912420A1 (fr
Inventor
Roland Kneer
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.)
Gaplast GmbH
Original Assignee
Gaplast 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 Gaplast GmbH filed Critical Gaplast GmbH
Priority to SI9730621T priority Critical patent/SI0912420T1/xx
Publication of EP0912420A1 publication Critical patent/EP0912420A1/fr
Application granted granted Critical
Publication of EP0912420B1 publication Critical patent/EP0912420B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S215/00—Bottles and jars
    • Y10S215/902—Vent

Definitions

  • the invention relates to a coextrusion blow molding process Container consisting of an essentially rigid Outer container and an easily deformable inner bag each different, no welded connection to each other incoming thermoplastic, with a container opening and at least two pressure equalization openings in the wall of the outer container for pressure equalization in the space between the outer container and the inner bag when the inner bag contracts, when squeezing excess material on the ground the blow mold of the inner bag is closed by a bottom weld seam and this bottom weld in the also closed Bottom of the outer container is jammed.
  • Such a container is described in DE 41 39 555 C2.
  • this known container is at the bottom of the outer container an outwardly projecting web is formed, in which the Closing the blow mold material of the outer container merged because the material of the inner bag a damming effect in the area of the above web from the Pinch edge retracts inwards.
  • This gets material of the outer container over part of the amount of the above Bridges in contact with each other, creating a closed Weld seam is created.
  • the bottom weld seam of the inner bag is anchored in the adjoining area of the web.
  • the jetty can an approximately kite-shaped cross-sectional shape, for example have, but also other, for example curved cross-sectional shapes of the web to a welded bottom seam of the Can lead outer container. Too much details of the manufacture of the known container is on DE 41 39 555 C2 directed.
  • the bottom weld seam of the inner bag can also be applied to others Be attached to the bottom of the outer container, for example using a suitable slide in the blow mold.
  • These pressure equalization openings on both sides lie in the circumferential direction of the container viewed in places that match the Intersection points of the bottom weld seam with the peripheral seam of the Align container. In other words, these pressure equalization openings are located in the circumferential direction on the cutting lines through the central longitudinal axis of the container and the bottom seam going plane with the peripheral wall of the container.
  • this also includes the case that the bottom weld does not cover the entire diameter of the container extends, in this case the intersection points formed by a line extending the bottom weld are.
  • the inner bag pulls in Horizontal section, i.e. in one to the longitudinal axis of the container vertical plane essentially star-shaped together when the Container content is spread.
  • This contraction on four sides of the inner bag means that a relatively large negative pressure in the inner bag occurs - and of course regardless of the fact that by the Pressure equalization openings ambient air in the space between the outer container and inner bag - in other words, a relatively large collapse force is required to cause this star-shaped contraction and then to maintain.
  • the quality of the container contents can be impaired by the permeation, while if there is a leak due to air entering the bag
  • the pump may become inoperative or the contents of the tank may leak.
  • EP 0 550 772 A discloses a container which is used for storing a Serves liquid from which components evaporate, even when the bottle is tightly closed. This can be, for example, oxygen, which escapes through the container wall, creating a vacuum in the bottle arises.
  • the inner layer should contract in a certain shape. This certain shape is caused by the fact that one or more adhesive strips be arranged between the outer layer and the inner layer, the result have that in their areas the inner layer firmly with the outer layer stays connected.
  • the present invention has for its object a container considered in such a way that the vacuum is reduced, which in the inner bag occurs after the filling substance has been released.
  • the container according to the invention are - in the circumferential direction of the container considered - at least one on each side of the bottom weld Pressure equalization opening formed in the outer container, all Pressure equalization openings opposite the intersections of the bottom weld (or its extension) are offset with the peripheral wall of the outer container. It is preferred that the pressure equalization openings by about 900 to the Intersections are staggered, although the invention is not there is limited.
  • the inner bag is no longer attached to four around 900 areas offset from each other from the outer container, but forms it a so-called "dog bone shape" during the contraction of the inner bag in which the inner bag is only on two opposite areas of the wall of the outer container lifts off, its center around 90o offset from the above-mentioned intersection points. That is, the inner bag is compressed increasingly flatter on both sides, where the central axis of the compressed cross-sectional shape approximately with the pinched bottom seam of the inner bag coincides.
  • the two-sided Contraction of the inner bag is not only caused by this can be that exactly around 90o to the intersections mentioned offset pressure equalization openings are formed.
  • This can rather, for example, in a particular case the material of the inner bag and its wall thickness dependent circumferential area, which is opposite the intersection points is offset, for example by two in Pressure compensation openings spaced apart from one another in the circumferential direction, the pair by about 80o each Intersections can be offset.
  • the negative pressure can otherwise be the same Minimize boundary conditions by having two diametrically opposed ones Pressure equalization openings arranged on one level are at right angles to that through the bottom seam and the Longitudinal central axis of the container extending plane.
  • These pressure equalization openings can be made through elongated incisions be formed in the wall of the outer container by this for example with a knife, punching tool or with a Lasers are cut into the wall, leaving one remaining inner wall section then by applying a compressive force can be torn open.
  • This can be the case with a container whose outer wall has a wall thickness of approx. 0.7 to 0.9 mm has to be accomplished in such a way that with a a crescent-shaped incision on a circular guided knife is generated, the wall down to a remaining safety wall thickness cut by approx. 0.2 mm, which ensures that despite the tolerances that occur, the inner bag cannot be damaged.
  • a stamp so strong against the outside wall on one side of the cut that the remaining wall section bursts.
  • a pressure equalization opening be formed with a punch or with a laser.
  • the pressure equalization openings can also be punctiform Bores or punctures are formed in the wall of the outer container be, the injection needle provided with a central bore may be in connection with a source of print media stands. If the puncture needle penetrates the wall of the outer container, at the moment of the passage from the wall of the Outer container is the pressure medium, for example can be air, water or a gel, so firmly against the Inner bag pressed so that it withdraws, so that the inner bag cannot be damaged by the injection needle.
  • the pressure medium for example can be air, water or a gel
  • the container according to the invention can be seen as a so-called Be wide-necked containers because of the pressure equalization openings not just in the shoulder area, but anywhere of the outer container can be formed.
  • the container 1 shown in Fig. 1 contains a container neck 2 and a shoulder section 3. At the container opening 4 can a pump for dispensing the container contents is attached, without the invention being limited to this.
  • the container can also be designed as a squeeze bottle in which the container wall squeezed by hand to dispense the contents of the container and the container can also be a so-called wide-neck container be without shoulder section.
  • Fig. 2 shows a known container in which the delivery of the container contents required pressure equalization in the space between the outer container and the inner bag open shoulder seams 8 of the outer container 6 is carried out by a smooth, seamless squeezing of the blow mold in this Area are formed.
  • the open shoulder seams 8 lie in the vertical plane 9 through the axis of the web 5 and the central longitudinal axis 10 of the container runs.
  • the intersection of this level 9 with the The peripheral wall of the outer container 6 are shown in FIG Reference number 11 denotes.
  • the inner bag is released as the contents of the container are released 7 in four growing areas of the Inner wall of the outer container, at the intersection 11 surrounding areas 12, on which - in the circumferential direction seen the air inlet to the pressure equalization and at areas offset by about 90 ° for this purpose. This has result in a star-like contraction form of the inner container educated.
  • the contraction of the inner container 7 from four sides requires a relatively large collapse force, the one also relatively large negative pressure in the inner bag with which this form of contraction is maintained becomes. The result is a relatively large permeation, Leakage of the inner bag 7 and a proportionate large remaining amount that cannot be removed from the inner bag is.
  • FIG. 4 shows a representation corresponding to FIG. 2 a container according to the invention 1.
  • This container contains no open shoulder seams to equalize pressure, but to Level 9 or the position of the open shoulder seams 8 according to FIG. 2 positions offset by an angle ⁇ of 90 ° each two pressure equalization openings 14, which are purely schematic in FIG are marked.
  • the contraction occurs only from two sides can of course not only be caused by the fact that the pressure equalization openings exactly 90o to the intersections 11 are offset. It is important that in the closer circumferential area to the intersections 11 no pressure equalization openings are located that detach the inner bag 7th cause of the wall of the outer container 6 in this area can.
  • the bilateral contraction can of course also be done cause that on both sides of the pressure equalization openings 14 further pressure equalization openings are formed, but a sufficient circumferential distance from the intersection 11 must comply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • External Artificial Organs (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Claims (5)

  1. Récipient (1) fabriqué par un procédé de soufflage par coextrusion, formé par un récipient extérieur (6) sensiblement rigide et une poche intérieure (7) facilement déformable, réalisés chacun dans des matières thermoplastiques différentes et n'étant reliés entre eux par aucun assemblage soudé, avec une ouverture de récipient (4) ayant au moins deux orifices d'équilibre de pression (14) dans la paroi du récipient extérieur (6) pour équilibrer la pression dans l'espace intermédiaire entre le récipient extérieur (6) et la poche intérieure (7) en cas de contraction de la poche intérieure, la poche intérieure (7) étant fermée par un cordon de soudure du fond (5) obtenu par un scellement par écrasement de la matière excédentaire dans le fond du moule de soufflage et ledit cordon de soudure du fond (5) étant pincé dans un cordon de soudure du fond (5), également fermé, du récipient extérieur (6), caractérisé en ce qu'au moins un orifice d'équilibre de pression (14) est réalisé sur les deux côtés du cordon de soudure du fond (5) et en ce que tous les orifices d'équilibre de pression (14) sont réalisés à des emplacements du récipient extérieur (6), qui, par rapport aux points d'intersection (11) du cordon de soudure du fond (5) avec la paroi périphérique du récipient extérieur (6), sont sensiblement décalés, de telle sorte que, au moment de l'évacuation du contenu du récipient, la poche intérieure (7) se contracte seulement sur deux côtés.
  2. Récipient selon la revendication 1, caractérisé en ce que, dans chaque cas, au moins un orifice d'équilibre de pression (14) est décalé de 90° environ par rapport aux points d'intersection (11).
  3. Récipient selon la revendication 1 ou 2, caractérisé en ce que, dans chaque cas, au moins deux orifices d'équilibre de pression (14), superposés à une distance donnée, sont décalés de 90° environ par rapport aux points d'intersection (11).
  4. Récipient selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les orifices d'équilibre de pression (14) sont formés par des entailles allongées réalisées dans la paroi du récipient extérieur (6).
  5. Récipient selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les orifices d'équilibre de pression (14) sont formés par des forures de la taille d'un point ou des piqûres, réalisées dans la paroi du récipient extérieur (6).
EP97931672A 1996-07-04 1997-06-27 Recipient pourvu d'ouvertures d'equilibrage de la pression Expired - Lifetime EP0912420B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730621T SI0912420T1 (en) 1996-07-04 1997-06-27 Container with pressure compensation holes

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19626968 1996-07-04
DE19626968A DE19626968A1 (de) 1996-07-04 1996-07-04 Behälter mit Druckausgleichsöffnung
PCT/DE1997/001348 WO1998001366A1 (fr) 1996-07-04 1997-06-27 Recipient pourvu d'ouvertures d'equilibrage de la pression

Publications (2)

Publication Number Publication Date
EP0912420A1 EP0912420A1 (fr) 1999-05-06
EP0912420B1 true EP0912420B1 (fr) 2003-12-17

Family

ID=7798927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97931672A Expired - Lifetime EP0912420B1 (fr) 1996-07-04 1997-06-27 Recipient pourvu d'ouvertures d'equilibrage de la pression

Country Status (11)

Country Link
US (1) US6109468A (fr)
EP (1) EP0912420B1 (fr)
JP (1) JP3935213B2 (fr)
AT (1) ATE256614T1 (fr)
AU (1) AU717167B2 (fr)
CA (1) CA2258853A1 (fr)
DE (3) DE19626968A1 (fr)
DK (1) DK0912420T3 (fr)
ES (1) ES2213218T3 (fr)
PT (1) PT912420E (fr)
WO (1) WO1998001366A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010024980A1 (de) 2010-06-24 2011-12-29 Gaplast Gmbh Behälter mit Innenbeutel
DE202021103382U1 (de) 2021-06-23 2021-08-31 Gaplast Gmbh Behälter
EP4108415A1 (fr) 2021-06-23 2022-12-28 Gaplast GmbH Procédé de fabrication d'un récipient

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6503440B2 (en) * 2000-04-07 2003-01-07 Boehringer Ingelheim Pharma Kg Process for making a container with a pressure equalization opening and containers produced accordingly
DE10256015B4 (de) * 2002-11-30 2005-04-14 Gaplast Gmbh Verfahren zur Herstellung eines Behälters mit wenigstens einer Druckausgleichsöffnung
FR2891529B1 (fr) * 2005-10-04 2007-12-07 Valois Sas Organe de recouvrement, procede de fabrication d'un tel organe et distributeur comprenant un tel organe.
DE102006012487B4 (de) 2006-03-16 2008-08-21 Gaplast Gmbh Verfahren und Vorrichtung zur Herstellung eines Behälters
US9475611B2 (en) 2007-04-19 2016-10-25 Anheuser-Busch Inbev S.A. Integrally blow-moulded bag-in-container having interface vents opening to the atmosphere at location adjacent to bag's mouth, preform for making it; and processes for producing the preform and bag-in-container
US20080257883A1 (en) 2007-04-19 2008-10-23 Inbev S.A. Integrally blow-moulded bag-in-container having an inner layer and the outer layer made of the same material and preform for making it
GB2459852B (en) * 2008-05-06 2011-02-16 Toly Products Compact liquid cosmetics
MX2011004056A (es) * 2008-10-17 2011-05-10 Gillette Co Dispositivo dispensador de fluido para la eliminacion de pelo.
EP2558252B1 (fr) 2010-04-15 2015-07-29 The Gillette Company Dispositif de retrait de poils à distribution de fluide
WO2015153598A1 (fr) 2014-04-02 2015-10-08 Kuvee, Inc. Récipient pour conserver un contenu liquide
KR102093254B1 (ko) 2014-12-19 2020-03-25 교라꾸 가부시끼가이샤 적층박리용기
US10472162B2 (en) 2016-09-09 2019-11-12 The Clorox Company Continuous spray dispenser for highly corrosive and other low compatibility products
DE102017004657B4 (de) 2017-05-16 2021-09-23 Gaplast Gmbh Behälter mit Innenbeutel
DE102021116278B4 (de) * 2021-06-23 2024-02-29 Gaplast Gmbh Verfahren und Vorrichtung zur Herstellung eines Behälters bestehend aus einem steifen Außenbehälter und einem leicht verformbaren Innenbeutel
DE102021121806A1 (de) * 2021-08-23 2023-02-23 Gaplast Gmbh Behälter bestehend aus einem steifen Außenbehälter und einem verformbaren Innenbeutel sowie Verfahren zur Herstellung eines derartigen Behälters

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Publication number Priority date Publication date Assignee Title
US2743038A (en) * 1952-12-04 1956-04-24 Jack R Ferries Paste dispenser
FR1251113A (fr) * 1960-03-14 1961-01-13 Réservoir tel que tube contenant des produits pour l'hygiène et la beauté
DE3446697A1 (de) * 1984-12-21 1986-06-26 Henkel KGaA, 4000 Düsseldorf Gebrauchsfertiges klebstoffgebinde
DE3442092A1 (de) * 1984-11-17 1986-05-28 Kautex Werke Reinold Hagen AG, 5300 Bonn Verfahren zum herstellen einer mit einer verschliessbaren oeffnung versehenen verpackung und nach diesem verfahren hergestellte verpackung
DE8437419U1 (de) * 1984-12-21 1985-03-07 Henkel KGaA, 4000 Düsseldorf Behaelter fuer luftempfindliche pastoese Massen
US5435452A (en) * 1991-08-05 1995-07-25 Yoshino Kogyosho Co., Ltd. Multilayer bottle with separable layer
DE4139555A1 (de) * 1991-09-18 1993-03-25 Gaplast Gmbh Behaelter
EP1092632B1 (fr) * 1995-03-10 2003-11-19 Yoshino Kogyosho Co., Ltd. Procédé et dispositif de prédélamination d'un récipient en matériau laminé délaminable

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010024980A1 (de) 2010-06-24 2011-12-29 Gaplast Gmbh Behälter mit Innenbeutel
WO2012000491A2 (fr) 2010-06-24 2012-01-05 Gaplast Gmbh Contenant comportant un sac intérieur
DE102010024980B4 (de) * 2010-06-24 2012-04-26 Gaplast Gmbh Behälter mit Innenbeutel
DE202021103382U1 (de) 2021-06-23 2021-08-31 Gaplast Gmbh Behälter
EP4108415A1 (fr) 2021-06-23 2022-12-28 Gaplast GmbH Procédé de fabrication d'un récipient
DE102021116277A1 (de) 2021-06-23 2022-12-29 Gaplast Gmbh Verfahren zur Herstellung eines Behälters
US11975473B2 (en) 2021-06-23 2024-05-07 Gaplast Gmbh Method of manufacturing a container
DE102021116277B4 (de) 2021-06-23 2024-07-04 Gaplast Gmbh Verfahren zur Herstellung eines Behälters aus einem steifen Außenbehälter und einem leicht verformbaren Innenbeutel

Also Published As

Publication number Publication date
ATE256614T1 (de) 2004-01-15
DE19626968A1 (de) 1998-01-15
JP3935213B2 (ja) 2007-06-20
US6109468A (en) 2000-08-29
JP2000513683A (ja) 2000-10-17
DK0912420T3 (da) 2004-04-05
DE59711141D1 (de) 2004-01-29
WO1998001366A1 (fr) 1998-01-15
ES2213218T3 (es) 2004-08-16
CA2258853A1 (fr) 1998-01-15
EP0912420A1 (fr) 1999-05-06
DE29780382U1 (de) 1998-10-08
PT912420E (pt) 2004-05-31
AU3537097A (en) 1998-02-02
AU717167B2 (en) 2000-03-16

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