EP0111131A1 - Tube d'emballage - Google Patents

Tube d'emballage Download PDF

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Publication number
EP0111131A1
EP0111131A1 EP83110690A EP83110690A EP0111131A1 EP 0111131 A1 EP0111131 A1 EP 0111131A1 EP 83110690 A EP83110690 A EP 83110690A EP 83110690 A EP83110690 A EP 83110690A EP 0111131 A1 EP0111131 A1 EP 0111131A1
Authority
EP
European Patent Office
Prior art keywords
head piece
tube
outer edge
connecting body
plastic
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.)
Granted
Application number
EP83110690A
Other languages
German (de)
English (en)
Other versions
EP0111131B1 (fr
Inventor
Engelbert Sander
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.)
Automation Industrielle SA
Original Assignee
Automation Industrielle 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 Automation Industrielle SA filed Critical Automation Industrielle SA
Publication of EP0111131A1 publication Critical patent/EP0111131A1/fr
Application granted granted Critical
Publication of EP0111131B1 publication Critical patent/EP0111131B1/fr
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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/12—Connections between body and closure-receiving bush

Definitions

  • the invention relates to a packaging tube, consisting of a tube, a multilayer composite film with a metallic barrier layer, a prefabricated plastic conical head piece with a removal opening and a connecting body arranged thereon, which consists of a composite film containing a metal layer and at least one plastic layer, wherein the peripheral edge of the tube overlaps the outer edge of the connecting body under or overlapping and their superimposed plastic layers softened by inductive generation of heat in the metal of the composite films and are welded together under pressure.
  • Such a packaging tube is known from FIGS. 4, 5 and the associated description of DE-OS 26 28 014.
  • the prefabricated head piece is made of polyethylene and welded to the tube by means of the connecting body by inductive heating of the metal layer by high frequency, which softens the adjacent plastic layers.
  • the peripheral edge of the tube tube overlaps the connecting body.
  • F ig. 1 and 2 the circumferential edge of the tube tube engages under the connecting body.
  • the plastic layers of the connecting body and the tubular body consist of a material that can be easily welded to the tube head made of polyethylene.
  • the connecting body has a barrier layer, parts of the tube shoulder are protected against diffusion, in particular from the outside, in this tube, but the polyethylene tube head arranged between the barrier layer and the filling material absorbs considerable amounts of volatile constituents, such as e.g. Flavorings, which causes a disadvantageous change in the quality of the filling.
  • volatile constituents such as e.g. Flavorings
  • the connecting body with the barrier layer forms the entire conical part of the head piece and its barrier layer forms part of the removal opening.
  • a threaded head sleeve is then placed only on this part.
  • the tube described there has a tubular body made of a layer material with an impermeable aluminum foil, at the upper end of which a head piece made of a relatively gas-permeable, easily deformable thermoplastic material (polyethylene) is cast.
  • a disc-shaped locking element is attached to the inside of the head piece.
  • the head piece In order to reduce the releasability of the edge section of the locking element from the tubular body, the head piece has an annular lip which extends inwards from the edge area and engages behind the edge section of the disk-shaped locking element. The locking element points in the head piece engaging projections.
  • the connection depends entirely on the projections and / or the lip.
  • the neck with the thread is also integrated into the locking element, the thermoplastic head piece having only a short neck portion, which ends in a shortened annular portion forming the base of the neck portion of the locking element.
  • the edge of the blocking element is relatively far away from the impermeable layer of the laminated body by casting the head piece, so that gas tightness is provided in the neck region, but not in the area region which is substantially larger in area.
  • This edge area allows both the entry of, for example, oxygen and the exit of, for example, aroma substances, as a result of which the tube content can be changed negatively.
  • the object of the invention is to provide a packaging tube of the type mentioned at the outset which surrounds a tube content almost completely gas-tight even in the head region, possibly reducing the consumption of impermeable plastic which is difficult to fuse with the plastics of the foils, and the individual parts thereof in a single operation in a simple manner Are firmly connected to each other.
  • the upper part can be completely covered by the lower gas-impermeable part, so that gas-tightness is guaranteed. Since the upper part slightly with the plastic layers of the can be fused, a firm connection of these parts is also achieved. Due to the undercut, for example in the form of a partially conical design of the outer edge, a firm locking between the upper and lower head part is ensured by the introduction and molding of plastic material onto this edge.
  • the head piece can be used for different tube diameters without change. In the case of different diameters, only the connecting body has to be changed so that the consumption of expensive impermeable plastic material remains the same despite the increase in the tube diameter.
  • two advantageous variants of the connection of the head parts of the connecting body and the tubular body are set out, by means of which the gas tightness is maintained when the head is connected to the tubular body.
  • the lower part of the head piece can consist of an impermeable plastic or of a coated or uncoated metal.
  • a tube according to the invention contains a tube tube 1 made of a composite film in the form of a three-layer laminate film.
  • a central aluminum layer 2 is connected on both sides with thermoplastic layers 3, 3 'as outer layers, which e.g. can consist of polyethylene or polypropylene.
  • Both plastic layers 3, 3 ' are made of one material or each of a different material and with different thicknesses, if necessary also using intermediate layers depending on the intended tube content, the tube sizes or other parameters.
  • the tube also contains a prefabricated conical head piece 4 which opens at the tapered end into a neck 6 surrounding the removal opening 5 of the tube.
  • the neck 6 has an external thread, not shown, for screwing on a closure cap, not shown.
  • the head piece 4 has an outer diameter D that is smaller than the inner diameter D i of the tubular body 1.
  • the head piece 4 is made in two parts from an upper part 7 with the neck 6 and a lower part 8.
  • the lower part 8 closes the upper head part 7 completely downwards.
  • the lower part 8 preferably has a cylindrical upward projection 9 which forms at least part of the inner wall of the removal opening 6.
  • the upper part 7 has a recess corresponding to the projection 9.
  • the upper head part 7 is made of a thermoplastic, which can be relatively permeable, for example of polyethylene.
  • This upper part 7 of the head piece 4 is intended consist of a plastic that can easily fuse with the plastic layers 3, 3 'of the laminate film.
  • the lower head part 8 should consist of a relatively impermeable plastic material, for example of a thermoplastic material with greater impermeability such as polypropylene, polyamide, polyester or a thermosetting plastic such as urea-formaldehyde, polyurethane or another plastic or a plastic mixture with comparable properties. These materials are comparatively difficult to weld to the material of the plastic layers 3, 3 'of the laminate film.
  • Impermeable plastic material is understood to mean any plastics which are diffusion-resistant with respect to the respective tube content and which also do not absorb any volatile constituents of the tube content. Since the gas permeability is known for almost all plastics, experimental tests with the tube contents are advantageous for the selection of suitable plastics.
  • the lower part (8) can also be made of a metal, e.g. Aluminum can be made in the form of a thin disc with or without a plastic or lacquer coating on one or both sides.
  • a metal e.g. Aluminum can be made in the form of a thin disc with or without a plastic or lacquer coating on one or both sides.
  • the head piece 4 tapers towards the outer edge and has an outer edge edge 10 formed by both head parts 7, 8, which represents a partial surface of a cone, the tip of which lies on the central axis 11 of the tube and is directed opposite the removal opening 5.
  • the connecting body 13 is similar or identical to the tube tube 1 in terms of material and layer structure and thus also has an aluminum layer 2 and plastic layers 3, 3 '.
  • the connecting body 13 has a step 14.
  • the step 14 has such a height that the tapered outer edge 10 is completely or at least partially covered, so that one step side 15 lies opposite the outer edge 10 of the head piece 4.
  • the inwardly curved peripheral edge 17 of the tubular body 1 is directed with its cutting edge against the other step side 16.
  • the inwardly curved peripheral edge 17 is underlaid by the outer edge of the connecting body 13.
  • the cut edge of the bent peripheral edge 17 lies opposite the tapered outer edge 10 and is overlaid by the outer edge of the connecting body 13.
  • the head piece 4 is composed of the two parts 7 and 8, then the connecting body 13 is placed on it (one with a step 14 in accordance with FIG. 1 and one without a step in FIG. 3) and finally the tube body 1 becomes the connecting body 13 integrally formed overlap (Fig. 1) or underlap (Fig. 3).
  • the aluminum layer 2 in the connecting body 13 and in the edge region of the tube 1 is heated, in particular by high-frequency induction, as a result of which the adjacent plastic layers 3, 3 'are softened and melted.
  • the softened plastic being distributed such that the gaps 18 and 18 'are filled 2 and 4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)
EP83110690A 1982-10-29 1983-10-26 Tube d'emballage Expired EP0111131B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8230491U DE8230491U1 (de) 1982-10-29 1982-10-29 Verpackungstube
DE8230491U 1982-10-29

Publications (2)

Publication Number Publication Date
EP0111131A1 true EP0111131A1 (fr) 1984-06-20
EP0111131B1 EP0111131B1 (fr) 1986-02-19

Family

ID=6745117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110690A Expired EP0111131B1 (fr) 1982-10-29 1983-10-26 Tube d'emballage

Country Status (2)

Country Link
EP (1) EP0111131B1 (fr)
DE (2) DE8230491U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999043571A1 (fr) 1998-02-27 1999-09-02 Boehringer Ingelheim International Gmbh Recipient pour liquide medical
WO2004052741A1 (fr) * 2002-12-09 2004-06-24 Packtech Limited Recipient de conditionnement a marques d'originalite et procede de realisation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1570241A (fr) * 1968-03-20 1969-06-06
FR2226325A1 (fr) * 1973-04-23 1974-11-15 Yoshino Kogyosho Co Ltd
FR2315446A1 (fr) * 1975-06-27 1977-01-21 Maegerle Karl Emballage tubulaire souple, et procede de fabrication de cet emballage
FR2396695A1 (fr) * 1977-07-08 1979-02-02 Schultz Robert Tube pliable de distribution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1570241A (fr) * 1968-03-20 1969-06-06
FR2226325A1 (fr) * 1973-04-23 1974-11-15 Yoshino Kogyosho Co Ltd
FR2315446A1 (fr) * 1975-06-27 1977-01-21 Maegerle Karl Emballage tubulaire souple, et procede de fabrication de cet emballage
FR2396695A1 (fr) * 1977-07-08 1979-02-02 Schultz Robert Tube pliable de distribution

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999043571A1 (fr) 1998-02-27 1999-09-02 Boehringer Ingelheim International Gmbh Recipient pour liquide medical
EP1338528A1 (fr) 1998-02-27 2003-08-27 BOEHRINGER INGELHEIM INTERNATIONAL GmbH Récipient pour liquide médical
WO2004052741A1 (fr) * 2002-12-09 2004-06-24 Packtech Limited Recipient de conditionnement a marques d'originalite et procede de realisation
CH696318A5 (de) * 2002-12-09 2007-04-13 Packtech Ltd Verpackungsbehälter für pastöse Packstoffe, insbesondere Verpackungstube
RU2338672C2 (ru) * 2002-12-09 2008-11-20 Пактек Лимитед Способ изготовления упаковочной тубы с маркировкой подлинности и такая туба

Also Published As

Publication number Publication date
DE3362199D1 (en) 1986-03-27
DE8230491U1 (de) 1982-12-30
EP0111131B1 (fr) 1986-02-19

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