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EP1122192A1 - Tubular film - Google Patents

Tubular film Download PDF

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Publication number
EP1122192A1
EP1122192A1 EP00102028A EP00102028A EP1122192A1 EP 1122192 A1 EP1122192 A1 EP 1122192A1 EP 00102028 A EP00102028 A EP 00102028A EP 00102028 A EP00102028 A EP 00102028A EP 1122192 A1 EP1122192 A1 EP 1122192A1
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EP
European Patent Office
Prior art keywords
tubular film
film
tubes
tubular
film according
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.)
Withdrawn
Application number
EP00102028A
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German (de)
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP00102028A priority Critical patent/EP1122192A1/en
Publication of EP1122192A1 publication Critical patent/EP1122192A1/en
Withdrawn legal-status Critical Current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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/0006—Flexible refuse receptables, e.g. bags, sacks

Definitions

  • the present invention relates to a tubular film Plastic, especially for the production of packaging bags.
  • WO 97/03899 proposes not to use standardized garbage bags, but rather the waste in portions in foil containers to pack, each in the desired Size can be made from a tubular film.
  • Such Tubular films are usually used in a gathered form Provided and can by means of film bubble extrusion or be produced in the slot silo process. Decide in the process the film thickness and the base material essentially about the film properties accordingly essentially only by changing these two parameters can be changed.
  • the object of the invention is therefore a tubular film of the type mentioned at the beginning, which makes it possible the properties such as the static load capacity to be more flexible.
  • Double-walled tubular film with two film tubes in Hose in hose arrangement is made.
  • the two Foil tubes can be made of different Consist of materials and have different wall thicknesses, so that the properties of the tubular film through Changing these parameters optimally to the existing ones Needs can be adjusted.
  • it is possible to have a high static load capacity Tubular films while maintaining relatively small wall thicknesses ensure where in usual use of a conventional film tube requires large wall thicknesses that would be the manageability of the tubular film would affect.
  • the two film tubes can connect with each other locally.
  • the film tubes on at least one to connect the axial end region to one another, in particular to make a bag this way. They can also Foil tubes over their length in several places in particular be connected to one another at certain points.
  • FIG. 1 shows an embodiment of a tubular film according to the present invention.
  • This Tubular film is double-walled and exists of an inner film tube 1 and an outer film tube 2, in hose in hose arrangement are provided, the outer film tube 2 a slightly larger diameter than the inner film tube 1 owns.
  • the two film tubes 1, 2 consist of different plastic materials, in particular biodegradable plastics are used, and have different wall thicknesses. Like in the Drawing is clearly visible, the film tubes 1, 2 connected to one another at several points 3.
  • tubular film offers the advantage that by selecting appropriate Wall thicknesses and materials properties, in particular the static load capacity of the tubular film, optimal be adapted to the existing needs can.
  • the tubular film can be conventional Made by extrusion or in the slot silver his.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Bag Frames (AREA)
  • Wrappers (AREA)

Abstract

The tubular plastic film for plastic bag production consists of two tubes (1, 2) one inside the other. These may be of different thicknesses and may be made of different materials. They may be spot welded at points along their length.

Description

Die vorliegende Erfindung betrifft eine Schlauchfolie aus Kunststoff, insbesondere zur Herstellung von Verpackungsbeuteln.The present invention relates to a tubular film Plastic, especially for the production of packaging bags.

Es ist insbesondere in Mehrfamilienhäusern üblich, die in den Haushalten anfallenden Abfälle in Mülltüten zu verpacken und diese dann in zentralen Müllcontainern zu sammeln. In diesem Zusammenhang wird in der WO 97/03899 vorgeschlagen, keine standardisierten Müllbeutel zu verwenden, sondern den Abfall jeweils portionsweise in Folienbehältnissen zu verpacken, die jeweils in gewünschter Größe aus einer Schlauchfolie hergestellt werden. Solche Schlauchfolien werden üblicherweise in geraffter Form zur Verfügung gestellt und können mittels Folienblasextrusion oder im Schlitzsilverfahren hergestellt sein. Dabei entscheiden die Folienstärke sowie das Basismaterial im wesentlichen über die Folieneigenschaften, die entsprechend im wesentlichen nur durch Veränderung dieser beiden Parameter verändert werden können.It is particularly common in apartment buildings that are in to pack household waste in garbage bags and then collect them in central dumpsters. In this context, WO 97/03899 proposes not to use standardized garbage bags, but rather the waste in portions in foil containers to pack, each in the desired Size can be made from a tubular film. Such Tubular films are usually used in a gathered form Provided and can by means of film bubble extrusion or be produced in the slot silo process. Decide in the process the film thickness and the base material essentially about the film properties accordingly essentially only by changing these two parameters can be changed.

Aufgabe der Erfindung ist es daher, eine Schlauchfolie der eingangs genannten Art anzugeben, die es ermöglicht, die Eigenschaften wie beispielsweise die statische Belastbarkeit flexibler zu gestalten.The object of the invention is therefore a tubular film of the type mentioned at the beginning, which makes it possible the properties such as the static load capacity to be more flexible.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß die Schlauchfolie doppelwandig mit zwei Folienschläuchen in Schlauch in Schlauch Anordnung hergestellt ist. Die beiden Folienschläuche können dabei aus unterschiedlichen Materialien bestehen und unterschiedliche Wandstärken besitzen, so daß die Eigenschaften der Schlauchfolie durch Veränderung dieser Parameter jeweils optimal an die bestehenden Bedürfnisse angepaßt werden kann. Insbesondere ist es möglich, eine hohe statische Belastbarkeit der Schlauchfolien unter Beibehaltung relativ geringer Wandstärken sicherzustellen, wo bei der üblichen Verwendung eines herkömmlichen Folienschlauchs große Wandstärken erforderlich wären, die die Handbarkeit der Schlauchfolie beeinträchtigen würden.This object is achieved in that the Double-walled tubular film with two film tubes in Hose in hose arrangement is made. The two Foil tubes can be made of different Consist of materials and have different wall thicknesses, so that the properties of the tubular film through Changing these parameters optimally to the existing ones Needs can be adjusted. In particular it is possible to have a high static load capacity Tubular films while maintaining relatively small wall thicknesses ensure where in usual use of a conventional film tube requires large wall thicknesses that would be the manageability of the tubular film would affect.

In an sich bekannter Weise ist es zweckmäßig, die Schlauchfolien in geraffter Form zur Verfügung zu stellen. Außerdem ist es möglich, die beiden Folienschläuche miteinander lokal zu verbinden. Beispielsweise kann es sinnvoll sein, die Folienschläuche an wenigstens einem axialen Endbereich miteinander zu verbinden, insbesondere um auf diese Weise eine Tasche zu bilden. Auch können die Folienschläuche über ihre Länge an mehreren Stellen insbesondere punktuell miteinander verbuneden sein.In a manner known per se, it is appropriate to To provide tubular films in a gathered form. It is also possible to use the two film tubes to connect with each other locally. For example, it can be useful, the film tubes on at least one to connect the axial end region to one another, in particular to make a bag this way. They can also Foil tubes over their length in several places in particular be connected to one another at certain points.

Hinsichtlich weiterer vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die nachfolgende Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beiliegende Zeichnung verwiesen, in der die einzige Figur eine Ausführungsform einer Schlauchfolie gemäß der vorliegenden Erfindung darstellt. Diese Schlauchfolie ist doppelwandig ausgebildet und besteht aus einem inneren Folienschlauch 1 und einem äußeren Folienschlauch 2, die in Schlauch in Schlauch Anordnung vorgesehen sind, wobei der äußere Folienschlauch 2 einen etwas größeren Durchmesser als der innere Folienschlauch 1 besitzt. Die beiden Folienschläuche 1, 2 bestehen aus unterschiedlichen Kunststoffmaterialien, wobei insbesondere biologisch abbaubare Kunststoffe eingesetzt werden, und besitzen unterschiedliche Wandstärken. Wie in der Zeichnung gut erkennbar ist, sind die Folienschläuche 1, 2 an mehreren Stellen 3 miteinander punktuell verbunden. Die Verwendung einer solchen doppelwandigen Schlauchfolie bietet den Vorteil, daß durch Auswahl entsprechender Wandstärken und Materialien die Eigenschaften, insbesondere die statische Belastbarkeit der Schlauchfolie, optimal an die jeweils bestehenden Bedürfnisse angepaßt werden können. Die Schlauchfolie kann dabei in herkömmlicher Weise durch Extrusion oder im Schlitzsilverfahrern hergestellt sein.With regard to further advantageous embodiments of the Invention is based on the dependent claims as well as the following Description of an embodiment with reference refer to the attached drawing in which the only figure shows an embodiment of a tubular film according to the present invention. This Tubular film is double-walled and exists of an inner film tube 1 and an outer film tube 2, in hose in hose arrangement are provided, the outer film tube 2 a slightly larger diameter than the inner film tube 1 owns. The two film tubes 1, 2 consist of different plastic materials, in particular biodegradable plastics are used, and have different wall thicknesses. Like in the Drawing is clearly visible, the film tubes 1, 2 connected to one another at several points 3. The use of such a double-walled tubular film offers the advantage that by selecting appropriate Wall thicknesses and materials properties, in particular the static load capacity of the tubular film, optimal be adapted to the existing needs can. The tubular film can be conventional Made by extrusion or in the slot silver his.

Claims (8)

Schlauchfolie aus einem Kunststoffmaterial, insbesondere zur Herstellung von Verpackungsbeuteln, dadurch gekennzeichnet, daß sie doppelwandig mit zwei Folienschläuchen (1, 2) in Schlauch in Schlauch Anordnung ausgebildet ist.Tubular film made of a plastic material, in particular for the production of packaging bags, characterized in that it is double-walled with two film tubes (1, 2) arranged in a tube in a tube arrangement. Schlauchfolie nach Anspruch 1, dadurch gekennzeichnet, daß sie in geraffter Form zur Verfügung steht.Tubular film according to claim 1, characterized in that it is available in a gathered form. Schlauchfolie nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die beiden Folienschläuche (1, 2) unterschiedliche Wandstärken besitzen.Tubular film according to claim 1 or 2, characterized in that the two film tubes (1, 2) have different wall thicknesses. Schlauchfolie nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die beiden Folienschläuche (1, 2) aus unterschiedlichen Materialien bestehen.Tubular film according to one of the preceding claims, characterized in that the two film tubes (1, 2) consist of different materials. Schlauchfolie nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die beiden Folienschläuche (1, 2) an wenigstens einem axialen Endbereich miteinander verbunden, insbesondere miteinander verschweißt sind.Tubular film according to one of the preceding claims, characterized in that the two film tubes (1, 2) are connected to one another at at least one axial end region, in particular are welded to one another. Schlauchfolie nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die beiden Folienschläuche (1, 2) an mehreren Stellen miteinander insbesondere punktuell verbunden sind.Tubular film according to one of the preceding claims, characterized in that the two film tubes (1, 2) are connected to one another at several points, in particular at points. Schlauchfolie nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß sie durch Extrusion oder im Schlitzsilverfahren hergestellt ist.Tubular film according to one of the preceding claims, characterized in that it is produced by extrusion or using the slot silo method. Schlauchfolie nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Folienschläuche (1, 2) aus einem biologisch abbaubaren Kunststoff bestehen.Tubular film according to one of the preceding claims, characterized in that the film tubes (1, 2) consist of a biodegradable plastic.
EP00102028A 2000-02-02 2000-02-02 Tubular film Withdrawn EP1122192A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00102028A EP1122192A1 (en) 2000-02-02 2000-02-02 Tubular film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00102028A EP1122192A1 (en) 2000-02-02 2000-02-02 Tubular film

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EP1122192A1 true EP1122192A1 (en) 2001-08-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436323A (en) * 2006-03-20 2007-09-26 Stanelco Rf Technologies Ltd A biodegradable container
WO2012042535A1 (en) * 2010-09-27 2012-04-05 Champat Rikhabchand Sanghvi Improved biocompostable pouch for packaging of liquids

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778431A1 (en) * 1968-04-27 1971-08-05 Union Rheinische Braunkohlen Process for the production of a two-layer pocket sack
US4273549A (en) * 1978-06-26 1981-06-16 W. R. Grace & Co. Process for making multi-walled plastic bag
US4726169A (en) * 1985-01-23 1988-02-23 Windmoller & Holscher Process of manufacturing sacks from synthetic thermoplastic material
US5209573A (en) * 1991-06-17 1993-05-11 Mobil Oil Corporation Trash can liner
WO1997003899A1 (en) 1995-07-21 1997-02-06 Tils, Peter Waste collection and disposal process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778431A1 (en) * 1968-04-27 1971-08-05 Union Rheinische Braunkohlen Process for the production of a two-layer pocket sack
US4273549A (en) * 1978-06-26 1981-06-16 W. R. Grace & Co. Process for making multi-walled plastic bag
US4726169A (en) * 1985-01-23 1988-02-23 Windmoller & Holscher Process of manufacturing sacks from synthetic thermoplastic material
US5209573A (en) * 1991-06-17 1993-05-11 Mobil Oil Corporation Trash can liner
WO1997003899A1 (en) 1995-07-21 1997-02-06 Tils, Peter Waste collection and disposal process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436323A (en) * 2006-03-20 2007-09-26 Stanelco Rf Technologies Ltd A biodegradable container
WO2012042535A1 (en) * 2010-09-27 2012-04-05 Champat Rikhabchand Sanghvi Improved biocompostable pouch for packaging of liquids

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