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EP0142455B1 - Sack von synthetischem biegsamem Material mit heissiegelbarem Streifen zum Öffnen - Google Patents

Sack von synthetischem biegsamem Material mit heissiegelbarem Streifen zum Öffnen Download PDF

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Publication number
EP0142455B1
EP0142455B1 EP84440046A EP84440046A EP0142455B1 EP 0142455 B1 EP0142455 B1 EP 0142455B1 EP 84440046 A EP84440046 A EP 84440046A EP 84440046 A EP84440046 A EP 84440046A EP 0142455 B1 EP0142455 B1 EP 0142455B1
Authority
EP
European Patent Office
Prior art keywords
film
sachet
bag
strips
weld line
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
Application number
EP84440046A
Other languages
English (en)
French (fr)
Other versions
EP0142455A3 (en
EP0142455A2 (de
Inventor
Raoul Gautier
Arnaud Privat De Garilhe
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.)
Societe Generale des Eaux Minerales de Vittel SA
Original Assignee
Societe Generale des Eaux Minerales de Vittel SA
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 Societe Generale des Eaux Minerales de Vittel SA filed Critical Societe Generale des Eaux Minerales de Vittel SA
Priority to AT84440046T priority Critical patent/ATE27128T1/de
Publication of EP0142455A2 publication Critical patent/EP0142455A2/de
Publication of EP0142455A3 publication Critical patent/EP0142455A3/fr
Application granted granted Critical
Publication of EP0142455B1 publication Critical patent/EP0142455B1/de
Expired 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
    • B65D75/52—Details

Definitions

  • the present invention relates to a flexible plastic bag of the type obtained by adequate folding of a single film of synthetic material, or from two strips of film, and welds determining the different sides of the bag, comprising, along '' a weld line and at the point of the bag where the pouring opening must be determined, at least one strip of a two-sided heat-sealing film interposed between the two film thicknesses connected by said weld line (known from document BE-A-547 093).
  • Sachets of this type are well known. They were for example, and not limited to, the subject of French patent applications FR-A-2 314 112, FR-A-2 417 445 and FR-A-2 474 457 in the name of the applicant.
  • a horizontal type shaping machine is described for example in French patent application FR-A-2 474 457 in the name of the applicant.
  • a vertical type shaping machine is described for example in French patent FR-A-2,097,845.
  • Bags of synthetic material of this type have been the subject of numerous developments and researches essentially focused on the problems of gripping on the one hand and stability in vertical position on the other hand, independently of course of researches as to the nature of the film itself.
  • Sachets of this type intended in particular for packaging beverages or spring water, are however designed to condition a volume of liquid of one liter or more.
  • patent BE 547 093 has already proposed a sachet comprising a traction strip inserted between the two thicknesses of the sachet, a strip having a determined resistance to tearing for the opening of the sachet.
  • This device is however imperfect insofar as it requires a significant tensile force and where, projecting, it can be accidentally triggered.
  • French patent 1,417,040 describes a device of identical type, which has the same drawbacks and is, in some of its embodiments, complex to industrialize.
  • this result is obtained with a flexible plastic bag of the type obtained by adequate folding of a single film of synthetic material, or from two strips of film, and welds determining the different sides of the bag, comprising, along a weld line and at the point of the bag where the pouring opening must be determined, at least one strip of a two-sided heat-sealing film interposed between the two thicknesses of the film connected by said line welding, characterized in that the strips have at their central part a curvilinear section having a high point outside the weld line.
  • the strip of heat-sealing film can be inserted in a vertical seal (vertical side of the bag), horizontal (upper edge of the bag) or even overlap on two welds, vertical and horizontal, in an upper corner of the bag.
  • the heat-sealing film may for example consist of an adhesive varnish placed on each side of an aluminum or other support, the varnish placed on each of the faces possibly being of a different nature.
  • the film must of course be food grade.
  • the bag will further include near the opening area, a reversible adhesive which will allow the bag to be closed after a first use.
  • a film (1) is wound on a mandrel (2) for forming and filling the individual bags formed after vertical sealing and bottom sealing.
  • the vertical welding is carried out in itself well known manner, by a welding device such as (3), the intermittent operation of which is linked to the device for advancing the film downwards, itself produced by belts from a drive motor.
  • a sheath (4) is thus obtained, the bottom of which is welded, at the same time as the upper edge of the following bag, by means of a horizontal welding device (5).
  • the cutting is carried out between the two welds by a mechanical cutting station (6).
  • a strip (7) of the heat-sealing film which is fed from a reel (8) which unwinds step by step under the action of a drive motor.
  • a cutting station (9) makes it possible to cut the strip at the vertical weld. The strip being thus inserted between the two ends of the film, the weld secures them.
  • the cut made at the horizontal cutting station, between the two sealing bars (5) leaves two free walls (12, 13) between which the film (10) projects.
  • the opening is done by peeling at this level.
  • the two strips are inserted in the same way as one, from two reels such as (8), with two drive devices.
  • the two strips can also be supplied from the same suitable coil.
  • the application of the welding heat at the level of the strips (10, 14, 15) causes the heat-sealing of this zone on the facing portions, film or other strip.
  • FIG 4 there is shown an embodiment in which the strip or strips (16) have a high point (17) outside the weld line, which ensures even greater reliability in terms of the precision of the opening. .
  • a strip can be placed on a horizontal or vertical weld.
  • the strips are on vertical weld, the horizontal weld taking place above said strips.
  • the opening and therefore the pouring are done on a vertical edge of the bag.
  • the strip or strips (18) will be at the junction of a vertical weld line (19) and a horizontal line (20). The peeling will therefore be done in the upper corner of the sachet opposite the handle, if it has one.
  • FIGS. 8a and 8b there will be disposed near the strips (10, 14, 15, 18) a reversible adhesive (21) which makes it possible to obtain a reversible security closure, after a first use of the sachet.
  • a reversible adhesive (21) which makes it possible to obtain a reversible security closure, after a first use of the sachet.
  • the grip edges of the strip (s) are folded against one of the walls so as to close the opening, and they are immobilized in this position thanks to the reversible adhesive, as illustrated in FIG. 8a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (2)

1. Beutel aus schmiegsamem Kunststoffmaterial, der durch geeignetes Falten einer einzigen Kunststoffolie oder ausgehend von zwei Kunststoffbändern und durch Verschweissung, die die verschiedenen Seiten des Beutels festlegen, erhalten wird und der entlang einer Schweisslinie und auf der Höhe der Stelle des Beutels, wo die Ausgiessöffnung festgelegt werden muss, wenigstens ein Bändchen einer zweiseitig heisssiegelbaren Folie aufweist, das zwischen die zwei Folienschichten eingeschoben ist, die durch die Schweisslinien miteinander verbunden sind, dadurch gekennzeichnet, dass die Bändchen (16) in ihrem mittleren Teil über einen gekrümmten Abschnitt verfügen, der einen hohen Punkt (17) ausserhalb der Schweisslinie aufweist.
2. Beutel nach Anspruch 1, dadurch gekennzeichnet, dass er in der Nähe des Öffnungsbereichs ein wiederverwendbares Verschlussklebeband (21) aufweist.
EP84440046A 1983-11-15 1984-11-13 Sack von synthetischem biegsamem Material mit heissiegelbarem Streifen zum Öffnen Expired EP0142455B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84440046T ATE27128T1 (de) 1983-11-15 1984-11-13 Sack von synthetischem biegsamem material mit heissiegelbarem streifen zum oeffnen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8318258A FR2554788B1 (fr) 1983-11-15 1983-11-15 Sachet en matiere synthetique souple comportant une bandelette de film thermoscellant pour son ouverture
FR8318258 1983-11-15

Publications (3)

Publication Number Publication Date
EP0142455A2 EP0142455A2 (de) 1985-05-22
EP0142455A3 EP0142455A3 (en) 1985-06-19
EP0142455B1 true EP0142455B1 (de) 1987-05-13

Family

ID=9294205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84440046A Expired EP0142455B1 (de) 1983-11-15 1984-11-13 Sack von synthetischem biegsamem Material mit heissiegelbarem Streifen zum Öffnen

Country Status (4)

Country Link
EP (1) EP0142455B1 (de)
AT (1) ATE27128T1 (de)
DE (1) DE3463635D1 (de)
FR (1) FR2554788B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1397923B1 (it) * 2010-02-11 2013-02-04 Goglio Spa Confezione flessibile particolarmente per prodotti liquidi.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547093A (de) *
US1987596A (en) * 1933-08-01 1935-01-15 American Enka Corp Package wrapper for textile products
GB868128A (en) * 1957-09-09 1961-05-17 Lewis Charles Mote Method of and means for protecting containers made of sheets of packaging material against damage from rapid temperature changes and breakage hazards, and the preservation of the contents of the container
FR1417040A (fr) * 1964-11-20 1965-11-05 Récipients thermosoudables
CH558283A (de) * 1973-01-12 1975-01-31 Hesser Ag Maschf Verpackungshuelle mit aufreissstreifen.

Also Published As

Publication number Publication date
ATE27128T1 (de) 1987-05-15
DE3463635D1 (en) 1987-06-19
EP0142455A3 (en) 1985-06-19
FR2554788A1 (fr) 1985-05-17
EP0142455A2 (de) 1985-05-22
FR2554788B1 (fr) 1986-08-22

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