EP0109055A2 - Tube d'emballage - Google Patents

Tube d'emballage Download PDF

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Publication number
EP0109055A2
EP0109055A2 EP83111230A EP83111230A EP0109055A2 EP 0109055 A2 EP0109055 A2 EP 0109055A2 EP 83111230 A EP83111230 A EP 83111230A EP 83111230 A EP83111230 A EP 83111230A EP 0109055 A2 EP0109055 A2 EP 0109055A2
Authority
EP
European Patent Office
Prior art keywords
tube
connecting body
tube according
layer
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
EP83111230A
Other languages
German (de)
English (en)
Other versions
EP0109055A3 (en
EP0109055B1 (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 EP0109055A2 publication Critical patent/EP0109055A2/fr
Publication of EP0109055A3 publication Critical patent/EP0109055A3/de
Application granted granted Critical
Publication of EP0109055B1 publication Critical patent/EP0109055B1/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 made of a multilayer composite film with a metallic barrier layer, a prefabricated plastic headpiece with a removal opening and an external thread and a connecting body consisting of a composite film containing a metal layer and at least one thermoplastic plastic layer which the head piece is attached and welded to it by means of the plastic layer, the peripheral edge of the tube tube overlapping or overlapping the outer edge of the connecting body and their superimposed plastic layers softened by inductive generation of heat in the metal of the composite film and welded together under pressure.
  • Such a tube is known from FIG. 3 and the associated description of DE-OS 26 28 014.
  • the peripheral edge of the tubular body made of a laminate with a metallic barrier layer overlaps the outer edge of a connecting body with a metallic barrier layer.
  • the connecting body has a relatively large cylindrical neck part on which a tube head made of polyethylene is arranged.
  • the neck part engages in an annular groove in the tube head, through which the tube head is divided inwards into a sleeve and outwards into a collar. Because of the relatively long length of the neck part of the connecting body, the latter is produced in the winding process, the development being punched out of a laminate and the edges being connected to a ring by an overlap seam.
  • the connecting body thus produced should then be connected to the head by frictional heat before making the connection with the tube.
  • Such a tube can meet the requirements placed on modern tubes with respect to diffusion resistance quite well, since the blocking metal layer of the connecting body engages under the metal barrier layer of the tube and is guided far into the neck of the head piece in the vicinity of the outlet opening of the tube.
  • the plastic layer surfaces coming into contact with the tube contents are also relatively small, so that the absorption behavior is also satisfactory.
  • the production technology of this tube is cumbersome and the assembly of the individual parts takes place in several successive steps.
  • the winding of the connecting body creates overlap seams which, on the one hand, impair the beautiful appearance and, on the other hand, complicate the insertion into the ring groove of the head piece due to their greater strength compared to the single-layer material and, last but not least, cause problems with friction welding. With this tube there is also no possibility of providing a membrane in the removal opening without any additional major effort.
  • the object of the invention is to improve a tube of the type mentioned in such a way that, with approximately the same or improved sealing and absorption properties, the individual parts can be manufactured more easily and can be firmly connected to one another to form the finished tube in a single operation.
  • the tube should also be able to be equipped with a membrane in the removal opening.
  • the head piece Due to the cylindrical or frustoconical design of the head piece, its manufacture is simple and requires little plastic material, so that the head piece is easier and cheaper to produce. Characterized in that the entire base surface is connected to the connecting body, there is a relatively large and thus permanent and firm connection of the two parts. This connection is improved in that the connecting body is inserted at an angle into an extension of the removal opening and is also firmly connected to the wall thereof. Furthermore, the plastic material of its layers is inserted into the recess in the extension, so that a kind of clamp - possibly a pin connection - is created, which has grown the strongest loads. The extension ensures a smooth transition between the neck of the connecting body and the wall of the removal opening.
  • the connecting body is advantageous to produce as an annular profile disk and, if a membrane is required, as a profile cover, both of which are preferably formed by deep drawing.
  • the plastic layers are thinned out, the removed material being able to be fed into a larger recess.
  • the conical widening creates an insertion funnel for the removal opening, which ensures good pressure distribution in the head area when the tube contents are pressed out, since the parts welded together are pressed against one another.
  • the depression is preferably in the form of an easy-to-produce annular groove and is further preferably in a wider sense approximately perpendicular to the longitudinal axis of the head to achieve a brace effect.
  • the tube has a very large diameter, it may be advantageous to enlarge the contact area of the head on the connecting body, which can be easily accomplished by means of an annular attachment.
  • the connecting body can only have two layers, which saves material.
  • the second plastic layer can consist of a relatively permeable or a relatively impermeable material. In the latter case, the absorption capacity in the head area can be reduced further.
  • the invention provides a tube that is much easier and cheaper to manufacture than the tube according to the prior art.
  • a tube with an annular connecting body has approximately the same diffusion resistance as the known tube, a tube with a profile cover, ie with a membrane has a higher diffusion resistance than the known tube, since the removal opening is also covered by a metal layer.
  • the layer of the connecting body facing the tube content can be made of an impermeable but also difficult to fuse with other plastics material, whereby the absorbency in the shoulder area and in Tube head when using a ring-shaped profile disc is reduced and when using a profile cover almost completely - until the membrane is pierced, ie during the entire storage period - is excluded.
  • a packaging 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 different material and with different thicknesses, optionally also using intermediate layers depending on the tube content provided, the tube sizes or other parameters.
  • the packaging tube made of a thermoplastic also contains a prefabricated head piece 4 with a central removal opening 5.
  • the head piece 4 is shown as a cylinder.
  • the removal opening 5 is cylindrical, but can also taper.
  • the head piece 4 has an external thread 7 for screwing on a closure cap, not shown.
  • an annular extension 10 can be provided at its lower end.
  • the approach 10 can also be designed as a stop surface for the closure cap.
  • the removal opening has a step-like extension 11.
  • the step can be designed obliquely and undercut (Fig. 1 and 2) or straight (Fig. 3 and 4).
  • the enlargement is cylindrical or preferably conically expanding.
  • an annular groove 12 which preferably adjoins the step, is embodied.
  • the groove 12 preferably has at least one undercut edge.
  • ring-shaped grooves or other recesses e.g. Crosses or blind holes may be provided. These can also be implemented in the base surface 9 (all not shown).
  • the connecting body 8 according to the embodiment shown in FIGS. 1 and 2 is designed as an annular profile disk.
  • the conical main part 13 opens at the tapered end into an upwardly angled neck 14 and at the widened end in a downwardly angled outer edge 15.
  • the neck 14 and the extension 11 are designed in dependence on one another so that the neck 14 enters the extension 11 in such a way that after the connection a positive transition in the removal opening 5 between the neck 14 and head piece 4 is secured.
  • the upper cut edge of the neck 14 abuts the undercut step.
  • the outer edge 15 is angled in such a way that the inwardly bent peripheral edge 16 of the tube 1 is gripped under (as shown) or overlapped (not shown).
  • the connecting body 8 is designed as a profile cover.
  • the profile cover is constructed and designed in a similar way to the annular profile disk, only the central opening of the ring disk, the diameter of which is the same as or approximate to that of the removal opening 5, is closed.
  • This part of the connecting body covering the opening serves as a membrane 17 which, if the tube is to be emptied, first has to be pierced. For different tube contents, e.g. for food, a membrane 17 is required.
  • the stage of expansion can be straight, i.e. perpendicular to the longitudinal axis of the head piece 4 and / or the groove 12 can be made enlarged.
  • the connecting bodies 8 are preferably produced by deep drawing as a profile cover; if they are used as a profile disc, only the membrane 17 is cut or punched out, which can be carried out in the same machine without any effort.
  • the connecting body 8 can have two layers (not shown) with an upper thermoplastic layer 3 on the aluminum layer 2 or three layers one thermoplastic layer 3, 3 'on and under the aluminum layer 2.
  • the lower plastic layer 3 'can consist of a relatively impermeable material. This layer then does not need to be easily fused with the plastic material of the tube head 4 or tube tube 1, since it is possible to make both connections through the upper outer plastic layer 3 arranged on the aluminum layer 2.
  • the plastic layer 3 arranged on the aluminum layer 2 of the connecting body 8 should be easy to fuse with the material of the tube head 4 and the material of the inner plastic layer 3 'of the tube tube 1. Due to the possibility of being able to carry out the connection solely by means of the upper plastic layer of the connecting body, this can also be configured in two layers, as indicated above, and specifically when the intended tube content is not changed by direct contact with the then exposed aluminum layer 2.
  • the head piece 4 with its extension 11 is pushed onto the neck 14 of the connecting piece until the base surface 9 of the head piece 4 rests on the main part 13 of the connecting body 8, after which the tubular body 1 with its peripheral edge 16 the outer edge 15 of the Connecting body 8 is supplied under or overlapping. Then, in particular, the aluminum layer 2 in the connecting body 8 and in the edge region of the tube 1 is heated, for example by high-frequency induction, as a result of which the adjacent plastic layers 3, 3 'are softened and melted.
  • the simultaneous pressurization ensures the firm connection of all tube parts to one another, the softened plastic being distributed such that the groove 12 or other and further depressions as well as the gaps 18, 18 'and a possible gap 19 in the joint area between the head piece 4 and Neck 14 can be filled in the removal opening 5 (see FIGS. 2 and 4).
  • a firm locking of the connecting body 8 on the head piece 4 is achieved in addition to the adhesive connection also achieved by means of plastic softening on the contact surfaces of the head piece 4 with the connecting body 8.
  • By filling the gaps 18, 18 ', 19, a uniform, beautiful surface is achieved.
  • a membrane 17 is provided, its softened plastic layer (s) 3, 3 'are pressed from the center to the edge into the then enlarged groove 12, so that the plastic layer (s) on or under the metal layer 2 in the region of the removal opening 5 be significantly thinned out, which on the one hand more material is available for the locking connection and on the other hand also facilitates piercing the membrane 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)
EP83111230A 1982-11-12 1983-11-10 Tube d'emballage Expired EP0109055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8231867U DE8231867U1 (de) 1982-11-12 1982-11-12 Verpackungstube
DE8231867U 1982-11-12

Publications (3)

Publication Number Publication Date
EP0109055A2 true EP0109055A2 (fr) 1984-05-23
EP0109055A3 EP0109055A3 (en) 1985-05-15
EP0109055B1 EP0109055B1 (fr) 1987-03-04

Family

ID=6745526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111230A Expired EP0109055B1 (fr) 1982-11-12 1983-11-10 Tube d'emballage

Country Status (2)

Country Link
EP (1) EP0109055B1 (fr)
DE (2) DE8231867U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028333A1 (fr) * 1994-04-13 1995-10-26 Abba Seafood Ab Tube d'emballage ferme hermetiquement
EP1632435A1 (fr) * 2004-09-06 2006-03-08 Kunststoffwerk Kutterer GmbH & Co. KG Tube et moyens de bouchage pour des tubes
WO2006051118A1 (fr) * 2004-11-15 2006-05-18 Sika Technology Ag Emballage tubulaire
FR3012349A1 (fr) * 2013-10-29 2015-05-01 Albea Services Tete de tube comprenant un insert formant barriere

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1118632A (en) * 1964-07-13 1968-07-03 American Can Co Collapsible dispensing container
DE2628014A1 (de) * 1975-06-27 1977-01-20 Karl Maegerle Verpackungstube
GB2098917A (en) * 1981-05-07 1982-12-01 Maegerle Karl Tubular container and process for producing same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1118632A (en) * 1964-07-13 1968-07-03 American Can Co Collapsible dispensing container
DE2628014A1 (de) * 1975-06-27 1977-01-20 Karl Maegerle Verpackungstube
GB2098917A (en) * 1981-05-07 1982-12-01 Maegerle Karl Tubular container and process for producing same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995028333A1 (fr) * 1994-04-13 1995-10-26 Abba Seafood Ab Tube d'emballage ferme hermetiquement
EP1632435A1 (fr) * 2004-09-06 2006-03-08 Kunststoffwerk Kutterer GmbH & Co. KG Tube et moyens de bouchage pour des tubes
WO2006051118A1 (fr) * 2004-11-15 2006-05-18 Sika Technology Ag Emballage tubulaire
FR3012349A1 (fr) * 2013-10-29 2015-05-01 Albea Services Tete de tube comprenant un insert formant barriere
EP2868591A1 (fr) * 2013-10-29 2015-05-06 Albéa Services Tête de tube comprenant un insert formant barrière
US9463906B2 (en) 2013-10-29 2016-10-11 Albea Services Tube head having an insert forming a barrier

Also Published As

Publication number Publication date
DE8231867U1 (de) 1983-03-17
DE3369951D1 (en) 1987-04-09
EP0109055A3 (en) 1985-05-15
EP0109055B1 (fr) 1987-03-04

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