EP0909721B1 - Perforierte Streckfolie zum Palettieren - Google Patents

Perforierte Streckfolie zum Palettieren Download PDF

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Publication number
EP0909721B1
EP0909721B1 EP98118333A EP98118333A EP0909721B1 EP 0909721 B1 EP0909721 B1 EP 0909721B1 EP 98118333 A EP98118333 A EP 98118333A EP 98118333 A EP98118333 A EP 98118333A EP 0909721 B1 EP0909721 B1 EP 0909721B1
Authority
EP
European Patent Office
Prior art keywords
film
palletizing
reinforcement elements
perforated
extensible
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.)
Revoked
Application number
EP98118333A
Other languages
English (en)
French (fr)
Other versions
EP0909721A1 (de
Inventor
Eugenio Tiozzo Gobetto
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
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Filing date
Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0909721A1 publication Critical patent/EP0909721A1/de
Application granted granted Critical
Publication of EP0909721B1 publication Critical patent/EP0909721B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/0088—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
    • B65D2571/00012—Bundles surrounded by a film
    • B65D2571/00018—Bundles surrounded by a film under tension
    • B65D2571/0003—Mechanical characteristics of the stretch film

Definitions

  • the present invention relates to a perforated extensible film for palletizing.
  • Products are in fact usually grouped and loaded onto a pallet so that they can be handled and stored more easily with a fork-lift truck which can lift the pallet with all the products loaded thereon.
  • a film generally made of polyethylene, is used in performing these operations in order to prevent the products from being able to fall.
  • the film is wrapped appropriately with two or three turns around the group of products so as to form a single block.
  • Uniformly perforated polyethylene films are currently widely used for this purpose and are wrapped around a group of products, allowing their ventilation and transpiration.
  • the holes are generally formed in the extensible film, for example by heat or by punching, but must be large enough to still allow ventilation of the products after the film has been wrapped around the group of products with two or three turns.
  • the perforated surface is at least equal to 50% of the surface of the film.
  • a perforated polyethylene film is currently available which is subjected to stretching in one direction in order to increase its pulling strength in that direction.
  • the size of the holes is proportional to the degree of stretching.
  • US-5 307 609 discloses a palletizing film constituted by a longitudinally elongated thin sheet made of extensible plastics provided with ventilation holes.
  • US-4 905 451 discloses a thin sheet with reinforcement elements.
  • the aim of the present invention is to provide a perforated film to be used to wrap groups of products which can be extensible during use in order to solve the problems observed above in conventional films.
  • a particular object of the present invention is to provide a film which is extensible in the wrapping direction but ensures adequate pulling strength.
  • Another object of the present invention is to provide a perforated extensible film for palletizing which can be obtained at a cost which is comparable to that of currently commercially available films.
  • Another object of the present invention is to provide a perforated extensible film for palletizing which can be manufactured with per se known methods and processes.
  • a palletizing film according to the invention is generally designated by the reference numeral 10 and is preferably but not exclusively used to wrap a group of products, generally designated by the reference numeral 11, loaded onto a pallet 12.
  • the film 10 is constituted by a thin sheet 13 which is elongated mainly in a longitudinal direction.
  • the thin sheet 13 is made of polyethylene, but as an alternative it can be made of any other plastic material, provided that it has adequate mechanical characteristics.
  • Polyethylene is in any case preferable because it is fully recyclable and can be easily disposed of after use.
  • the thin sheet 13 is rolled up in rolls 14 for convenience in unrolling it and wrapping it for example around the group of products 11 so as to turn it into a single block.
  • the thin sheet 13 is uniformly provided with holes 15 which in this case are substantially circular and are obtained for example by punching or by heat in a per se known manner.
  • the thin sheet 13 also has longitudinal reinforcement elements 16 which are parallel to each other and are adapted to increase the strength of the film 10 in the pulling direction, shown schematically by the arrow 17.
  • Each one of the reinforcement elements 16 is constituted by a strip 18, made of polyethylene in this case, which is conveniently joined to the thin sheet 13 by thermal bonding, gluing or other methods.
  • the film 10 is capable of conveniently adapting to the shape of the product or group of products 11 around which it is wrapped, since good extensibility of the film continues to be ensured.
  • the joining of the strips 18 to the thin sheet 13 by thermal bonding can occur, for example, by providing a roll of polyethylene to be coupled, during production, to the roll 14 of the thin sheet 13 and by ensuring that during the unrolling of the rolls the strips 18 are cut and coupled by thermal bonding, gluing or other methods.
  • a palletizing film is now designated by the reference numeral 110 and is constituted by a thin sheet 113 which is uniformly perforated and has reinforcement elements 116 which are obtained in this case by overlap folding of longitudinal portions of said thin sheet 113.
  • the folded and overlapped longitudinal portions of the thin sheet 113 are joined by thermal bonding, gluing or other methods so as to provide the reinforcement elements 116.
  • FIG. 6 another embodiment of a perforated extensible film for palletizing is now designated by the reference numeral 210 and is constituted by a thin sheet 213 made of polyethylene or of another plastic material having adequate characteristics which is also uniformly perforated.
  • the thin sheet 213 has longitudinal reinforcement elements, now designated by the reference numeral 216, which are obtained by means of beads 217 which are made of polyethylene in this case, are formed by extrusion and are joined by thermal bonding, gluing or other methods to the thin sheet 213.
  • a perforated film for palletizing can be constituted by a thin sheet, made for example of polyethylene, which is uniformly provided with transverse slits (instead of holes 15) and with reinforcement elements which are fully similar to the reinforcement elements 16, 116 or 216 described above.
  • the slits widen so as to provide openings which allow ventilation and transpiration of the products wrapped by said film.
  • the present invention achieves an important advantage by virtue of the fact that a perforated film for palletizing has been provided which has good extensibility characteristics combined with good pulling strength.
  • the width of the holes can be defined at will and is not dependent on the degree of stretching.
  • the reinforcement elements restrain the tendency of the holes to widen uncontrollably when the film is pulled and to tear it.
  • the resulting effect is a uniform and therefore optimum stretching of the film.
  • the materials used may be any according to the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Pallets (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Basic Packing Technique (AREA)

Claims (8)

  1. Palettierungsfolie (10; 110; 210) bestehend aus einer dünnen, longitudinal gereckten Folie (13; 113; 213) aus streckbarem Kunststoff mit Lüftungslöchern (15), dadurch gekennzeichnet, dass sie longitudinale Verstärkungselemente (16; 116; 216) enthält, die aus reckbarem Kunststoff bestehen und so angepasst sind, dass sie die Festigkeit der Folie in Zugrichtung (17) erhöhen, die mit der Ausrichtung der longitudinalen Verstärkungselemente (16) übereinstimmt und die longitudinalen Verstärkungselemente (16; 116; 216) in solchen Gebieten der Folien angeordnet sind, die keine Lüftungslöcher (15) aufweisen.
  2. Palettierungsfolie nach Anspruch 1, dadurch gekennzeichnet, dass die Verstärkungselemente (16) durch Streifen aus Kunststoffmaterial gebildet sind, die mit dem Film (10) verbunden sind.
  3. Palettierungsfolie nach Anspruch 1, dadurch gekennzeichnet, dass die Verstärkungselemente (16) durch longitudinale Abschnitte der Folie (10) gebildet sind, die durch Überlappen gefaltet werden und durch thermisches Verbinden, Kleben oder durch das Verfahren nach einem anderen Systems verbunden werden.
  4. Palettierungsfolie nach Anspruch 1, dadurch gekennzeichnet, dass die Löcher (15) durch Querschlitze gebildet sind.
  5. Palettierungsfolie nach Anspruch 1, dadurch gekennzeichnet, dass die Verstärkungselemente (216) durch Wülste (217) gebildet sind, die durch die Extrusion von Kunststoff geformt und durch thermisches Verbinden, Kleben oder andere Methoden verbunden werden.
  6. Palettierungsfolie nach Anspruch 1, dadurch gekennzeichnet, dass die Folie (10; 110; 210) aus Polyethylen besteht.
  7. Palettierungsfolie nach Anspruch 2, dadurch gekennzeichnet, dass die Streifen aus Polyethylen bestehen.
  8. Palettierungsfolie nach Anspruch 5, dadurch gekennzeichnet, dass die Wülste (217) durch die Extrusion von Polyethylen erhalten werden.
EP98118333A 1997-10-16 1998-09-28 Perforierte Streckfolie zum Palettieren Revoked EP0909721B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97PD000226A IT1295487B1 (it) 1997-10-16 1997-10-16 Film estensibile forato per pallettizzazione
ITPD970226 1997-10-16

Publications (2)

Publication Number Publication Date
EP0909721A1 EP0909721A1 (de) 1999-04-21
EP0909721B1 true EP0909721B1 (de) 2003-04-09

Family

ID=11391929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118333A Revoked EP0909721B1 (de) 1997-10-16 1998-09-28 Perforierte Streckfolie zum Palettieren

Country Status (4)

Country Link
EP (1) EP0909721B1 (de)
AT (1) ATE236835T1 (de)
DE (1) DE69813133T2 (de)
IT (1) IT1295487B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016841A1 (de) * 2004-04-07 2005-11-03 Illinois Tool Works Inc., Glenview Folie mit Verstärkungsstreifen sowie Vorrichtung und Verfahren zur Herstellung der Folie
WO2011026953A1 (en) 2009-09-04 2011-03-10 Megaplast S.A. Packaging Materials Industry Reinforced tacky stretch film

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9909714D0 (en) * 1999-04-27 1999-06-23 Catalyst Developments Uk Ltd Flower transportation unit
DE10007614B4 (de) * 2000-02-18 2004-01-29 Heikaus Unternehmensbeteiligungen Und Verwaltung Gmbh Streckfolie und Verfahren zur Herstellung einer Streckfolie
DE10054186B4 (de) * 2000-11-02 2010-06-17 Knauf Insulation Gmbh Transporteinheit
ITRM20010281A1 (it) * 2001-05-23 2002-11-25 Akro Flex S A S Di E Garegnani Procedimento per la realizzazione di un film in polietilene per imballaggi, rinforzato e non forato, dotato di aree di indebolimento localiz
DE10201480B4 (de) 2002-01-16 2005-08-11 Mega Plast S.A., Heraklion Stretchfolie
EP1394066A1 (de) * 2002-09-02 2004-03-03 Rockwool International A/S Transporteinheit mit einer Schutzverpackung und Verfahren zur Manipulierung dieser Verpackung
DE10310814A1 (de) * 2003-03-12 2004-09-23 Mega Plast S.A., Heraklion Kunststoffstreckfolie, Kunststoffnetz daraus und Verfahren zu deren Herstellung
ITRM20040130A1 (it) * 2004-03-12 2004-06-12 Akro Flex S A S Di Garegnani A Film forato estensibile in materiale plastico per imballaggi traspiranti, rinforzato in direzione longitudinale.
WO2006018028A1 (en) * 2004-07-16 2006-02-23 Megaplast S.A. Stretch film
DK1989044T3 (da) 2006-01-13 2012-12-10 Megaplast Sa Emballagefilm
US8637134B1 (en) * 2009-03-23 2014-01-28 Alliance Plastics, LLC Vented plastic film and method of making
GB0915425D0 (en) 2009-09-04 2009-10-07 Megaplast Sa Reinforced thin film for flexible packaging
GB0915420D0 (en) 2009-09-04 2009-10-07 Megaplast Sa Polyolefin pre-stretched packaging film
US20150306849A1 (en) * 2014-04-25 2015-10-29 Alliance Plastics, LLC Reinforced stretch film and its method of production
ITUB20155364A1 (it) 2015-11-09 2017-05-09 No El Srl Metodo ed apparecchiatura per la foratura di film in materiale plastico.
IT201900019208A1 (it) * 2019-10-17 2021-04-17 Akro Brain Srl Strisce bordate di imballaggio

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228366A5 (de) * 1973-05-02 1974-11-29 Solvay
GB2052377B (en) * 1979-05-11 1983-02-02 Pike R Packaging or display material process and apparatus
FR2617123B1 (fr) * 1987-06-26 1989-12-29 Newtec Int Bande avec renfort longitudinal, procede d'emballage et emballage comportant une telle bande, installation et machine pour la mise en oeuvre du procede d'emballage, et dispositif pour la realisation d'une telle bande
US5013595A (en) * 1987-11-25 1991-05-07 J. C. Parry & Sons Co., Inc. Stretch film with auxiliary band
CN1063656A (zh) * 1990-05-28 1992-08-19 日本石油化学株式会社 包装方法及其装置
US5409177A (en) * 1993-07-29 1995-04-25 J. C. Parry & Sons Co., Inc. Piggyback wrapper
US5520872A (en) * 1993-08-09 1996-05-28 Scherer; Philip G. Method for hemming edges of stretch film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016841A1 (de) * 2004-04-07 2005-11-03 Illinois Tool Works Inc., Glenview Folie mit Verstärkungsstreifen sowie Vorrichtung und Verfahren zur Herstellung der Folie
WO2011026953A1 (en) 2009-09-04 2011-03-10 Megaplast S.A. Packaging Materials Industry Reinforced tacky stretch film

Also Published As

Publication number Publication date
DE69813133D1 (de) 2003-05-15
ITPD970226A1 (it) 1999-04-16
DE69813133T2 (de) 2004-02-19
ATE236835T1 (de) 2003-04-15
EP0909721A1 (de) 1999-04-21
IT1295487B1 (it) 1999-05-12

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