EP0743258B1 - Tube zur Verpackung von Schüttgut, Vorrichtung und Verfahren zur Herstellung solcher Tuben - Google Patents

Tube zur Verpackung von Schüttgut, Vorrichtung und Verfahren zur Herstellung solcher Tuben Download PDF

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Publication number
EP0743258B1
EP0743258B1 EP96870085A EP96870085A EP0743258B1 EP 0743258 B1 EP0743258 B1 EP 0743258B1 EP 96870085 A EP96870085 A EP 96870085A EP 96870085 A EP96870085 A EP 96870085A EP 0743258 B1 EP0743258 B1 EP 0743258B1
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EP
European Patent Office
Prior art keywords
tube
accordance
flattened
folds
packaging
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
EP96870085A
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English (en)
French (fr)
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EP0743258A3 (de
EP0743258A2 (de
Inventor
Miroslav Rojnik
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.)
Candyplast SA
Original Assignee
Individual
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Filing date
Publication date
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Publication of EP0743258A2 publication Critical patent/EP0743258A2/de
Publication of EP0743258A3 publication Critical patent/EP0743258A3/de
Application granted granted Critical
Publication of EP0743258B1 publication Critical patent/EP0743258B1/de
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
    • 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

Definitions

  • the present invention relates to tubes, preferably transparent or translucent, intended in particular for packaging bulk products.
  • bulk products include confectionery such as candy, spices, hardware such as nails and screws, pharmaceuticals, wouldnrdashery such as buttons, etc. This list is not exhaustive and many other products can be packaged by such a tube.
  • the present invention extends to an installation and to a process allowing the shaping of such tubes in a largely automated manner, and possibly of packaging in bulk products in line so as to obtain packaged products ready for sale.
  • the packaging for the sale of different products implies a certain number of specific requirements resulting in particular from modern sales techniques involving the use of display type displays.
  • the packaging In addition to the need for rapid and largely automated packaging techniques, a careful presentation of the packaging must be obtained, preferably so that the product it contains is visible by transparency. To meet the requirements of distributors, it is also necessary that the wrapped object can be easily placed at the points of sale and be easily accessible to buyers. For reasons of safety, hygiene and conservation, it is also advisable that the packaging is airtight and can be sealed, for example by a tear-off security strip and that it is sufficiently resistant.
  • Tubes produced in this way are not particularly suitable for presentation for sale in suspended form in display type displays.
  • GB-A-1 267 815 describes packaging pinch seals obtained from a synthetic thermoplastic material.
  • the document describes a technique for producing an airtight package which comprises a tubular body and a bottom produced in a single step by a blow molding technique.
  • the opposite end is flattened and forms a pinch-sealed end.
  • This end is sealed (column 2, lines 45 and following) by electronic welding or using heated plates.
  • the packaging is opened by cutting a corner from the upper end.
  • the packaging consists of a semi-rigid back made of cardboard, plastic or another suitable material, covered by a sheet of flexible transparent plastic, for example cellophane, "Pliofilm", polyethylene or any other material which covers the front face. from the back, leaving an opening for the introduction of the goods to be packaged.
  • the packaging is supplied flat but can be unfolded to take the form of a box, especially if you want to pack relatively large items.
  • Such an article can be formed so that the front sheet completely covers the back but, in a preferred form, the back protrudes from the front cover sheet and constitutes a "head" provided with a perforation by which the packaging can be suspended .
  • the upper part of the packaging can be its open upper part folded back on itself, forming one or two folds and be stapled or otherwise immobilized in the folded state in order to '' seal the packaging.
  • Document FR-A-980 345 discloses a collapsible packaging for pasty products such as toothpaste made of so-called plastic materials such as aceto-cellulose sheets and the like.
  • This embodiment therefore necessarily involves permanent bonding and is not intended to allow successive openings and closings of this end.
  • This tube can be made, among other things, of plastic material and the closure, as in the previous case, is carried out at the end opposite to that provided for the exit of the product by bending the end of the tube in a zigzag. Again, this closure is not provided for successive openings and closings.
  • the invention essentially aims to meet the requirements described in the technological background mentioned above and to avoid the drawbacks of the solutions of the aforementioned prior art.
  • the aim is in particular to provide a packaging which is easy to shape, to fill with the product to be packaged, and to be closed, which is in a form which can be easily hung.
  • the aim is also to produce an installation and a method making it possible to easily shape this type of packaging and making it possible in the installation to integrate the filling of the product to be packaged.
  • the semi-rigid packaging tube according to the invention is made of a thermoplastic material, preferably transparent or translucent.
  • semi-rigid packaging tube applies to a tube, well known in the packaging sector, and illustrated by the aforementioned document US-A-2584095, as opposed to packaging bags made of flexible plastic sheets and moreover generally containing plasticizers.
  • semi-rigid tube implies that the tube, consisting of a sheet wound in a cylinder and glued or welded to form a tube, if it is placed on its base, remains rigid without sagging like a sachet would . It is therefore appropriate that the material, without being completely rigid in itself, be flexible enough to wind, but also that its nature and its thickness allow it to offer a certain resistance to deformation in the tubular state, which will be used to achieve the filling according to the invention.
  • This tube is characterized in that at least one end of the tube is closed by at least two consecutive folds of opposite directions, made permanent by hot crushing, applied to this previously flattened end.
  • the tube is preferably closed in a conventional manner at the other end by a bottom element, which preferably has the shape of a cup and which is glued, crimped or otherwise fixed in or on the tube.
  • the bottom can be fixed by heat sealing using a suitable tool creating a striated marking on the bottom.
  • the two ends are each closed in the characteristic manner of the invention by two consecutive permanent folds of opposite direction, applied to the two ends also previously flattened.
  • At least one label is advantageously glued on this end, preferably on the two faces of the end, after having compressed the folds.
  • One of the flattened ends is preferably provided with a cutout providing a light allowing the tube to be suspended, for example in a sales display type display. This cutting is preferably carried out after application of the sealing label.
  • the label can be provided with perforations facilitating its tearing at the level of the underlying folds of the flattened end of the tube.
  • the semi-rigid transparent packaging tube 1 is constituted by a body of generally cylindrical shape 3, closed at its lower end 10 by a circular bottom 5 which can for example be glued and / or crimped in or on the circular body 3.
  • a circular bottom 5 which can for example be glued and / or crimped in or on the circular body 3.
  • the bottom is shown convex but a flat bottom is obviously possible.
  • the tube 1 is filled to the appropriate level with a loose product such as candy (not shown), however, leaving a free upper space allowing the end opposite to that provided with the bottom 5 to be closed, as will be described below.
  • the end of the tube 1 is flattened by hot pressing.
  • the end 11 which undergoes this crushing, as it appears in FIG. 2, is, in the front view, of width greater than the diameter of the rest of the body 3 because of the deformation undergone.
  • the operating conditions essentially the temperature and the pressure
  • the operating conditions are chosen so that the flattening is permanent, but without making the two faces applied one on the other. It remains possible to open the tube by spreading the "lips" created by the flattening and the tube, at this stage, is not perfectly tight, the simple flattening not allowing such a tightness to be achieved.
  • This fold is a thermoplastic, that is to say the application of pressure combined with the application of heat, so that each fold is permanent, that is to say that a fold is formed which, without causing the opposite faces of the flattened end of the tube to stick together, is such that the user, to open the packaging, must unfold the upper part of the tube, for example by forcing with his fingers on the end opposite the end of the bottom in the direction of the arrows 4 ( Figure 2), to restore roughly to this end its initial tubular shape.
  • the plastic that is to say a synthetic resin, makes it possible to produce a semi-rigid but also thermoplastic tube, that is to say that it deforms hot and under pressure while keeping after cooling, in the absence of the aforementioned opening constraint, the form in which it was thermoplastic.
  • PET and PVC constitute basic materials suitable for producing the tube according to the present invention. These materials are used in suitable form with usual additives and adjuvants (dyes, stabilizers, etc.) and are formed by winding and gluing or welding in tubes according to well-known conventional techniques with appropriate wall dimensions and thicknesses.
  • thermoforming it is also possible to carry out the filling after thermoforming, by opening the flattened end and provided with at least two plies, but that this technique is better suited for manual filling of prepared tubes than for integration into a continuous installation of online packaging.
  • a tube formed according to the invention has an excellent seal and tests have been carried out which indicate that it remains sealed up to pressures of 3.2 bars and up to 0.6 bar after spontaneous opening and reclosing.
  • an adhesive strip or label 19 is applied to the flattened end 11 and provided with folds 13 and 14, preferably covering the two faces of the flattened end of the tube d 'a continuous strip and keeping the folds crushed.
  • a perforation 20 can be provided to allow the tube to be hung in a display.
  • this strip is advantageously provided with perforations 23 on the front face (shown in dotted lines) and 24 on the rear face (shown in center lines), preferably at the height of the folds 13 and 14 that this strip 19 covers to allow easy tearing thereof and unfolding.
  • the tubes are filled with a bottom at their base and open at the top with the products to be packaged, leaving sufficient upper space for the operations which will follow.
  • forming is carried out (the tube being shown both from the front and from the side in the diagram) by first flattening the upper end of the tube when hot and then making the two zigzag folds. In order to make this deformation permanent, one proceeds to station 55 with a hot crushing.
  • the “flap” produced by the two permanent pleats is labeled by affixing a label preferably perforated in concordance, that is to say overlapping, of the perforation zones with the permanent pleats.
  • This label advantageously includes a barcode and all other useful information, such as a brand, price, description of the content.
  • Step 59 consists of an optical verification of the readability of the barcode with evacuation, if necessary, of non-conforming products.
  • a light is cut out through the flattened part of the tube, in this case its upper part provided with two permanent folds and possibly through the label so as to allow the product packaged on a display rod.
  • the station 63 makes it possible to carry out a control of the possible presence of a metal, and in the event of positive response, involves the evacuation of the product of the line.
  • Item 65 allows the various products to be grouped together and overpacked or placed in trays or cartons.
  • the stations 53, 55 and 57 can in particular be modified, to obtain, for example, a pre-folding using a folding tool which already presses the product hot to give it the shape of a staircase, this station being followed by a transfer to the next station during which the folding is refined using polished stainless steel guides until the next station obtains an almost definitive double zigzag fold, after which, by a final crushing of these folds, we get a flat product ready to be labeled.
  • the removal of the label can in particular be carried out as follows: the label is taken up by the vacuum at the output of the printer. It is then brought between two brushes, then brought into contact with the bent tube. Then, the two brushes move back to form a "U” with the label, then fold it back on the back of the product. The label is pressed again to perfect its aesthetics.
  • one or two labels can be affixed respectively on each of the faces of the tube.
  • a double punching tool can be used, allowing an elliptical cutting of the top of the tube as well as that of the "Euro-hole" 20 for placing on the shelf.
  • Sorting stations for products by improper printing of the "barcode" are also possible at different levels from that indicated.
  • the detection of metal particles using an ultra-sensitive metal detector of the tunnel type placed on a belt conveyor is generally adopted.
  • the product reception station it is also possible, for the product reception station, to provide for the presence of an operator, who receives the products at the end of the conveyor, puts them in trays, boxes or directly on a display stand.
  • the device can for example be provided for PVC tubes varying from 34 to 70 mm in diameter by changing the tooling, these tools being suitable for receiving tubes with a length of 210 to 410 mm open, which corresponds approximately to 180 to 380 mm closed.
  • the tube is advantageously made of a sheet of calendered PVC, unplasticized and free of heavy metals (Sb, As, Ba, Cd, Cr, Pb, Hg) transparent, with a thickness of 175 to 250 micrometers, of the type 188 / 12 from the firm KLOECKNER PENTAPLAST (Montabaur - Germany) with a modulus of elasticity E (according to standard DIN 53457) from 1200 to 2000 Newton / mm 2 , these values being of course by way of indication without limitation.
  • the invention is in particular not limited to particular dimensions or precise embodiments of the apparatus described.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Noodles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Packaging Of Special Articles (AREA)
  • Making Paper Articles (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Seal Device For Vehicle (AREA)
  • Materials For Medical Uses (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Tubes (AREA)
  • Closing Of Containers (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)

Claims (14)

  1. Halbstarre Verpackungstube, vorzugsweise durchsichtig oder durchscheinend, aus einem Kunststoff verwirklicht, dadurch gekennzeichnet, daß mindestens ein Ende (11) der Tube (1) durch mindestens zwei aufeinanderfolgende Falze (13, 14) von entgegengesetzter Richtung, die durch eine Quetschung im heißen Zustand dauerhaft gemacht wurden, und bei diesem vorher plattgedrückten Ende (11) angebracht sind, verschlossen ist.
  2. Verpackungstube gemäß Anspruch 1, dadurch gekennzeichnet, daß das andere Ende (10) der Tube (1) durch ein Bodenelement (5) verschlossen ist, das vorzugsweise die Form eines Bechers oder einer Scheibe hat, und das durch Kleben, Bördeln oder auf andere Weise in oder auf der Tube befestigt ist.
  3. Verpackungstube gemäß Anspruch 1, dadurch gekennzeichnet, daß die zwei Enden (10, 11) der Tube (1) jeweils durch mindestens zwei aufeinanderfolgende, dauerhafte Falze (13, 14) von entgegengesetzter Richtung, die bei dem vorher plattgedrückten Ende (10, 11) angebracht sind, verschlossen sind.
  4. Verpackungstube gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das durch mindestens zwei dauerhafte Falze verschlossene, plattgedrückte Ende (11) mit mindestens einem Streifen oder einem Etikett (2) versehen ist, das auf dieses Ende (11), vorzugsweise auf die zwei Seiten des Endes (11) geklebt wurde, nachdem die zwei Falze (13, 14) gequetscht und zusammengedrückt wurden.
  5. Verpackungstube gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das plattgedrückte Ende (11) mit einem Ausschnitt versehen ist, der eine Öffnung (20) darstellt, die ermöglicht, die Tube aufzuhängen.
  6. Verpackungstube gemäß Anspruch 4 oder 5, dadurch gekennzeichnet, daß das Etikett mit Perforationen (23, 24) versehen ist, die das Zerreißen des Etiketts in Höhe der darunterliegenden Falze (13, 14) des plattgedrückten Endes (11) der Tube (1) erleichtern.
  7. Vorrichtung zur integrierten Formung von Verpackungstuben gemäß irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie eine Formungsstation (53) umfaßt, wo das Plattdrücken von einem Ende der Tube (1) ausgeführt wird, wobei mindestens zwei Walze (13, 14) zickzackförmig verwirklicht werden, und eine Station (55) umfaßt, wo diese Verformung durch eine Quetschung im heißen Zustand dauerhaft gemacht wird.
  8. Vorrichtung gemäß Anspruch 7, dadurch gekennzeichnet, daß sie eine Station (57) umfaßt, bei der die Etikettierung vorgenommen wird, wozu mindestens ein Etikett (2) aufgebracht wird, das vorzugsweise so perforiert ist, daß die Perforationszonen (23, 24) mit den dauerhaften Falzen (13, 14) übereinstimmen, das heißt, die Perforationszonen (23, 24) die dauerhaften Falze (13, 14) überdecken.
  9. Vorrichtung gemäß Anspruch 7 oder 8, dadurch gekennzeichnet, daß sie eine Station (61) umfaßt, bei der das Ausschneiden einer Öffnung in dem plattgedrückten Teil der Tube und eventuell in dem Etikett ausgeführt wird, so daß das verpackte Produkt auf einer Stange eines Verkaufsständers aufgehängt werden kann.
  10. Vorrichtung gemäß irgendeinem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß sie eine Station (51) zum Füllen der Tube vor ihrer Formung umfaßt.
  11. Vorrichtung gemäß irgendeinem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß sie eine oder mehrere Kontrollstationen (59, 63) umfaßt.
  12. Verfahren zur integrierten Formung von Verpackungstuben gemäß irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine Plattdrückung eines Endes der Tube (1) ausgeführt wird, wozu mindestens zwei Falze (13, 14) zickzackförmig verwirklicht werden, und diese Verformung durch eine Quetschung im heißen Zustand dauerhaft gemacht wird.
  13. Verfahren gemäß Anspruch 12, dadurch gekennzeichnet, daß nach der Quetschung im heißen Zustand das Füllen mit dem zu verpackenden Produkt vorgenommen wird, und eine Etikettierung vorgenommen wird, wozu mindestens ein Etikett (19) aufgebracht wird, das vorzugsweise so perforiert ist, daß die Perforationszonen (23, 24) mit den dauerhaften Falzen (13, 14) übereinstimmen, das heißt, die Perforationszonen (23, 24) die dauerhaften Falze (13, 14) überdecken.
  14. Verfahren gemäß Anspruch 12 oder 13, dadurch gekennzeichnet, daß eine Ausschneidung einer Öffnung (20) in dem plattgedrückten Teil der Tube und eventuell in dem Etikett vorgenommen wird, so daß das verpackte Produkt auf einer Stange eines Verkaufsständers aufgehängt werden kann.
EP96870085A 1995-07-27 1996-06-27 Tube zur Verpackung von Schüttgut, Vorrichtung und Verfahren zur Herstellung solcher Tuben Expired - Lifetime EP0743258B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOPCT/BE95/00071 1995-07-27
PCT/BE1995/000071 WO1997005032A1 (fr) 1995-07-27 1995-07-27 Tube avec une fermeture d'extremite pliee

Publications (3)

Publication Number Publication Date
EP0743258A2 EP0743258A2 (de) 1996-11-20
EP0743258A3 EP0743258A3 (de) 1996-12-04
EP0743258B1 true EP0743258B1 (de) 1997-12-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96870085A Expired - Lifetime EP0743258B1 (de) 1995-07-27 1996-06-27 Tube zur Verpackung von Schüttgut, Vorrichtung und Verfahren zur Herstellung solcher Tuben

Country Status (13)

Country Link
EP (1) EP0743258B1 (de)
JP (1) JP2000501680A (de)
KR (1) KR19990028996A (de)
AT (1) ATE160991T1 (de)
AU (1) AU3159095A (de)
CA (1) CA2227962A1 (de)
DE (1) DE69600116T2 (de)
DK (1) DK0743258T3 (de)
ES (1) ES2112079T3 (de)
GR (1) GR3026311T3 (de)
IL (1) IL118954A0 (de)
WO (1) WO1997005032A1 (de)
ZA (1) ZA966341B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8826959B2 (en) 2006-06-29 2014-09-09 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8753012B2 (en) * 2006-06-29 2014-06-17 Graphic Flexible Packaging, Llc High strength packages and packaging materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR980345A (fr) * 1943-02-04 1951-05-10 Emballages pour produits pâteux, tels que pâtes dentifrices par exemple et leur procédé de fabrication
US2584095A (en) * 1946-06-13 1952-01-29 Extruded Plastics Inc Tubular container
US3026016A (en) * 1959-08-05 1962-03-20 Scher Nathan Display bag
US3065898A (en) * 1960-10-03 1962-11-27 John M Daugherty Collapsible tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8826959B2 (en) 2006-06-29 2014-09-09 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials
US9522499B2 (en) 2006-06-29 2016-12-20 Graphic Packaging International, Inc. Heat sealing systems and methods, and related articles and materials

Also Published As

Publication number Publication date
IL118954A0 (en) 1996-10-31
DK0743258T3 (da) 1998-08-10
ZA966341B (en) 1997-02-11
WO1997005032A1 (fr) 1997-02-13
DE69600116D1 (de) 1998-01-22
EP0743258A3 (de) 1996-12-04
JP2000501680A (ja) 2000-02-15
ES2112079T3 (es) 1998-03-16
GR3026311T3 (en) 1998-06-30
EP0743258A2 (de) 1996-11-20
KR19990028996A (ko) 1999-04-15
DE69600116T2 (de) 1998-06-18
AU3159095A (en) 1997-02-26
ATE160991T1 (de) 1997-12-15
CA2227962A1 (en) 1997-02-13

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