EP0370957B1 - Sac en plastique pour liquides ou matériaux pulvérulents - Google Patents

Sac en plastique pour liquides ou matériaux pulvérulents Download PDF

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Publication number
EP0370957B1
EP0370957B1 EP19890810891 EP89810891A EP0370957B1 EP 0370957 B1 EP0370957 B1 EP 0370957B1 EP 19890810891 EP19890810891 EP 19890810891 EP 89810891 A EP89810891 A EP 89810891A EP 0370957 B1 EP0370957 B1 EP 0370957B1
Authority
EP
European Patent Office
Prior art keywords
bag
neck
small plate
film sheet
plastic film
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
EP19890810891
Other languages
German (de)
English (en)
Other versions
EP0370957A1 (fr
Inventor
Martin Schneider
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.)
Ivers Lee AG
Original Assignee
Ivers Lee AG
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 Ivers Lee AG filed Critical Ivers Lee AG
Publication of EP0370957A1 publication Critical patent/EP0370957A1/fr
Application granted granted Critical
Publication of EP0370957B1 publication Critical patent/EP0370957B1/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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/30—Deformable or resilient metal or like strips or bands

Definitions

  • the invention relates to a plastic bag according to the preamble of claim 1.
  • Known pouches made of two plastic films for holding a liquid or a powdery material are rectangular. To open these bags, a corner is torn off or cut off.
  • the disadvantage of these known plastic bags is that if the entire content is not used up, they can no longer be closed again in a simple manner.
  • a plastic bag is previously known in which a bag neck is formed by sections of the plastic film, which neck has the same width as the bag.
  • a plate made of a plastically deformable material for closing the bag is arranged in the central region of the bag neck, the plate being connected to the bag neck on one side.
  • the neck of the bag has folded-in side parts, these folded-in parts having to be stretched to keep the neck of the bag open. Only by bending the plate could it not be possible to keep the neck of the bag sufficiently open. The plate is bent to close the bag.
  • the one arranged in the neck of the bag Platelets should also be suitable for opening the neck of the bag while removing the contents contained in the bag.
  • the plastic bag according to the invention is characterized by the features stated in the characterizing part of patent claim 1.
  • the plastic bag 1 shown in FIG. 1 is made of two essentially rectangular, superimposed plastic films 2. At one of the upper corners, both foils 2 each have a section 3. The sections 3 together form a bag neck 4. The edge regions of the foils 2 and the sections 3 are welded to one another with the exception of the neck opening 5 or are hot-sealed. At a point opposite to the neck of the bag, a pick 6 is used to form a bag bottom. Instead of using the pimple, the bottom of the bag can be obtained by folding in the film if only a single film is used to form the bag.
  • the filling material e.g. a liquid can be filled into the bag through a piece of pipe, not shown, which projects through the neck opening 5 into the interior of the bag 1. After filling the container, the edges of the neck opening 5 are also welded after removal of the said pipe piece. The contents can also be filled through the handle, which has not yet been sealed.
  • a rectangular plate 7 made of a plastically deformable material is arranged in the bag neck 4.
  • the plate 7 is provided at least on one side with a heat-sealable coating or coated with a protective covering, for example with a plastic, or lacquered and welded to the adjacent film section 3 along a long side.
  • the welded surface area 8 is indicated in FIGS. 1 and 2 by the hatched area.
  • the plate 7 can consist of aluminum, copper or tin, for example.
  • the plate 7 is with two Provided rows of beads 9 running parallel to each other.
  • the stiffness of the plate 7 is increased by the beads 9. In this way it is possible to use a thinner plate 7 with the same stiffness.
  • a tab can be formed on the upper corner of the bag 1 opposite the bag neck 4, which enables the bag 1 to be hung on a hook.
  • the plate 7 has no function until the neck opening 5 is opened, for example by cutting off the weld seam closing the neck opening 5.
  • the plate 7 is bent around a longitudinal axis 10 drawn in broken lines in FIGS. 1 and 2, which extends between the two rows of beads 9.
  • the bag neck 4 is drawn in the open state.
  • the two film sections 3 are held in the open position by the plate 7 bent about the longitudinal axis 10, as can be clearly seen from FIG. 3.
  • the liquid can flow out of the bag 1 practically unhindered through the bag neck 4 held open by the plate 7, if the bag is inclined accordingly.
  • the plate 7 When the desired amount of liquid has been removed from the bag 1, the plate 7 is bent back so that both rows of beads 9 lie in one plane again. Then the plate 7 with the entire bag neck 4 is bent about an axis 11 running transversely to the aforementioned longitudinal axis 10, as shown in FIG. 4. The outer part of the bag neck 4 is bent by the plate 7 in the position essentially 180 ° with respect to the neck held. In this position, the bag 1 is not hermetically sealed, but the leakage of liquid is at least very difficult.
  • the above-mentioned plastic film can be a monofilm, a composite film made of two plastic films, e.g. Polyethylene and polyester films or a composite film made of a plastic film and a metal film.
  • FIG. 5 to 7 show a second embodiment of the bag according to the invention.
  • This bag also has a bag neck 13 formed from sections 12 of the films. Inside the bag neck 13 there is a plate 14 made of a plastically deformable material, the edge area 15 of which is completely welded or sealed to one of the film sections 12. A tab 16 is punched out within the welded edge area; the tab 16 is bent in order to keep the neck 13 of the bag open during the removal of the liquid contained in the bag in the direction of the film section 12 which is not connected to the plate 14. This state is shown in section in FIG. 7.
  • the tab 16 is first bent back into the plane of the plate 14. Subsequently, the plate 14 together with the bag neck 13 is bent essentially by 180 ° about an axis running transversely through the bag neck 13.
  • the handle 17 has a recess 18 and the two film sections forming the handle 17 are held together by a plurality of, preferably parallel, weld seams 19.
  • the bag neck 13 and the adjacent handle 17 are separated from one another by a slot 21 except for a web 20.
  • the web 20 forms a predetermined breaking point at which the bag neck 13 can be completely separated from the handle 17 in order to be able to close the bag neck.
  • a notch 22 is arranged in the web 20.
  • a round opening 23 is provided at least at the end of the slot 21 adjacent to the said neck.
  • FIG. 8 shows a third embodiment of the plastic bag according to the invention.
  • This bag 24 has a bag neck 25 and a spatula 26 for forming a bottom.
  • a plate 27 Arranged within the neck 25 of the bag is a plate 27 which, for example, can be of the same design as the plate 7 according to the bag shown in FIG. 1.
  • the bag 24 has a handle 28 to facilitate pouring the liquid.
  • the opening and closing of the bag neck 25 is carried out in the same way as in the exemplary embodiment according to FIGS. 1 to 4.
  • FIG. 9 shows a fourth exemplary embodiment of the plastic bag according to the invention.
  • the bag 29 is wedge-shaped, the end region arranged at the narrowest point being designed as a bag neck 30.
  • a pick 31 is used to form the bag bottom.
  • a plate 32 is fastened inside the bag neck 30, which plate is configured similarly to the plate 14 according to the exemplary embodiment according to FIGS. 5 to 7.
  • On one side of the bag 29 there is a plate from the bottom of the container to the outermost edge of the bag neck 30 extending handle 33 arranged.
  • the bag neck 30 is separated from the upper part of the handle 33 by a slot 35.
  • a notch 36 is provided in the web 34.
  • the bags described above with reference to FIGS. 1 to 7 could also be produced from an endless plastic tube, in which case the side weld seams would then be omitted.
  • the bags described above are particularly suitable for so-called refill or multi-portion packs.
  • the bags are completely sealed up to the consumer and can be closed again several times after opening several times. After completely emptying, these bags are thrown into the trash where they take up very little space.

Landscapes

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

Claims (9)

1-Sac en plastique (1) pour liquides ou matériaux pulvérulents, constitué d'une feuille de plastique pliée ou de deux feuilles de plastique (2) disposées l'une sur l'autre, les bordures voisines de chacune des feuilles étant soudées, respectivement scellées ensemble, le sac de plastique étant ainsi constitué que, un col de sac (4;13;25;30) est aménagé à travers une section (3;12) des feuilles de plastique, une plaquette (7;14;27;32) en matériau plastique déformable est disposée dans le col de sac pour ouvrir, respectivement fermer le col de sac, et au-moins une partie de la bordure de la plaquette (7;14;27;32) est liée avec au-moins une des sections de feuilles de plastique (3;12) formant le col de sac, caractérisé en ce que la plaquette (7) comprend deux rangées de moulures (9) généralement parallèles, ou en ce qu'au-moins une languette (16) est poinçonnée dans la plaquette (14), dont un côté est relié à la plaquette.
2-Sac selon la revendication 1, caractérisé en ce que des sections des feuilles de plastique voisines du col de sac sont formées en poignées (17;28;33).
3-Sac selon la revendication 2, caractérisé en ce que l'extrémité de la feuille de plastique (12) formant le col de sac (13;30) voisine des feuilles de plastique de la poignée (17;33) est reliée aux feuilles de plastique de la poignée par une nervure (20;34) formant amorce de rupture.
4-Sac selon l'une des revendications 1 à 3, caractérisé en ce que la plaquette (7;14;27) est disposée dans le col de sac (4;13;25) de telle manière qu'une partie de la plaquette fait saillie dans l'espace intérieur du sac.
5-Sac selon l'une des revendications précédentes, caractérisé en ce que la plaquette (7;14) est en métal, par exemple en aluminium.
6-Sac selon l'une des revendications précédentes, caractérisé en ce que la plaquette est munie, sur au-moins une face, d'un enduit pouvant être scellé à chaud ou d'une couche de protection.
7-Sac selon l'une des revendications précédentes, caractérisé en ce que la feuille de plastique est une feuille unique ou une feuille assemblée.
8-Sac selon la revendication 7, caractérisé en ce que la feuille assemblée comprend la feuille de plastique et une feuille métallique.
9-Sac selon la revendication 7, caractérisé en ce que la feuille assemblée comprend une couche de polyéthylène et une couche de polyester et en ce que la couche de polyéthylène est disposée de préférence sur la face interne du sac.
EP19890810891 1988-11-21 1989-11-21 Sac en plastique pour liquides ou matériaux pulvérulents Expired - Lifetime EP0370957B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH430988 1988-11-21
CH4309/88 1988-11-21

Publications (2)

Publication Number Publication Date
EP0370957A1 EP0370957A1 (fr) 1990-05-30
EP0370957B1 true EP0370957B1 (fr) 1992-09-30

Family

ID=4273681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890810891 Expired - Lifetime EP0370957B1 (fr) 1988-11-21 1989-11-21 Sac en plastique pour liquides ou matériaux pulvérulents

Country Status (2)

Country Link
EP (1) EP0370957B1 (fr)
DE (1) DE58902376D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9017419U1 (fr) * 1990-12-24 1991-03-14 Imer, Rodney Haydn, Dipl.-Ing., 4000 Duesseldorf, De
DE19501369A1 (de) * 1995-01-18 1996-07-25 Rovema Gmbh Beutel mit einer Tülle
DE10053902B4 (de) * 2000-10-31 2006-06-08 Martin Geisler Folien-Beutel mit integriertem und wiederverschließbarem Trinkrohr
AUPR408601A0 (en) * 2001-03-29 2001-04-26 Rachael Pty Ltd Containers and methods for container manufacture
US6923574B2 (en) * 2001-10-23 2005-08-02 Kenneth D. Siegel Flexible pouch with reinforced handle
US8764292B2 (en) 2008-11-20 2014-07-01 Performance Seed Article for holding product and methods
BR112017001179B1 (pt) * 2014-07-22 2022-01-11 Société des Produits Nestlé S.A. Embalagem com cabo que pode ser fechada novamente, método e máquina para a produção desta embalagem

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US220510A (en) * 1879-10-14 Improvement in paper pouches
BE755442A (fr) * 1969-08-29 1971-03-01 Unifos Kemi Ab Sacs munis d'un dispositif de fermeture et de transport
US3734154A (en) * 1971-04-23 1973-05-22 Packaging Ass Inc Disposable bag with self-closing valve
GB2130173B (en) * 1982-11-12 1987-05-28 Formost Packaging Machines Inc Bag mouth closure and method and apparatus for making the same
FR2550768B1 (fr) * 1983-08-19 1985-08-23 Ceta Emballages Sac isolant portatif flexible

Also Published As

Publication number Publication date
EP0370957A1 (fr) 1990-05-30
DE58902376D1 (de) 1992-11-05

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