ITRM20070070A1 - FILM FOR PACKAGING WITH HIGH MECHANICAL STRENGTH - Google Patents
FILM FOR PACKAGING WITH HIGH MECHANICAL STRENGTH Download PDFInfo
- Publication number
- ITRM20070070A1 ITRM20070070A1 ITRM20070070A ITRM20070070A1 IT RM20070070 A1 ITRM20070070 A1 IT RM20070070A1 IT RM20070070 A ITRM20070070 A IT RM20070070A IT RM20070070 A1 ITRM20070070 A1 IT RM20070070A1
- Authority
- IT
- Italy
- Prior art keywords
- strips
- film
- film according
- packaging
- width
- Prior art date
Links
- 238000004806 packaging method and process Methods 0.000 title claims description 8
- 229920006280 packaging film Polymers 0.000 claims description 4
- 239000012785 packaging film Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B65D65/02—Wrappers or flexible covers
- B65D65/22—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
- Winding Of Webs (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
Description
Descrizione dell'invenzione industriale dal titolo: PELLICOLA PER IMBALLAGGI AD ELEVATA RESISTENZA MECCANICA; Description of the industrial invention entitled: HIGH MECHANICAL RESISTANCE FILM FOR PACKAGING;
La presente invenzione riguarda il settore degli imballaggi ed in particolare dei film per imballaggio, preferibilmente (ma non esclusivamente) in polietilene. The present invention relates to the packaging sector and in particular to packaging films, preferably (but not exclusively) in polyethylene.
Attualmente, è ben noto l'uso di pellicole o film estensibili in polietilene per l'imballaggio delle merci. In funzione del tipo di merce, del peso e dell'ingombro, vengono utilizzate pellicole di spessore diverso, e poiché tali pellicole o film vengono acquistati a peso, è evidente che i costi d'imballaggio aumentano proporzionalmente allo spessore (e quindi al peso) del film utilizzato, ed è pertanto utile limitare gli spessori delle pellicole degli imballaggi per ridurre i costi di produzione. Currently, the use of polyethylene stretch films or films for goods packaging is well known. Depending on the type of goods, weight and size, films of different thicknesses are used, and since these films or films are purchased by weight, it is evident that packaging costs increase in proportion to thickness (and therefore to weight). of the film used, and it is therefore useful to limit the thicknesses of the packaging films to reduce production costs.
Oltre a ciò, spesso sono richieste delle pelli'cole rinforzate aventi una larghezza limitata, al fine di realizzare imballaggi di dimensioni ridotte senza un inutile spreco di materiale. In addition to this, reinforced hides having a limited width are often required, in order to make packaging of reduced dimensions without an unnecessary waste of material.
Scopo principale del trovato, quindi, è fornire un film ad elevata resistenza che, pur avendo uno spessore limitato, abbia una larghezza adatta al tipo di merci da imballare. The main object of the invention, therefore, is to provide a high-strength film which, despite having a limited thickness, has a width suitable for the type of goods to be packaged.
Ciò è stato ottenuto, secondo l'invenzione, fornendo una pellicola per imballaggi costituita da più strisce longitudinali di film aventi i bordi laterali parzialmente sormontati a quelli delle strisce adiacenti. This has been achieved, according to the invention, by providing a packaging film consisting of several longitudinal strips of film having the lateral edges partially overlapped with those of the adjacent strips.
Secondo una caratteristica peculiare del trovato, variando la larghezza delle strisce e/o l'entità dello stiramento a cui possono essere sottoposte prima di avvolgerle sulla bobina di immagazzinaggio e distribuzione, è vantaggiosamente possibile ottenere una pellicola avente la larghezza desiderata . According to a peculiar characteristic of the invention, by varying the width of the strips and / or the amount of stretching to which they can be subjected before winding them on the storage and distribution reel, it is advantageously possible to obtain a film having the desired width.
Questi ed altri scopi verranno meglio compresi con la seguente descrizione dettagliata e con riferimento alle figure che illustrano, a solo titolo esemplificativo non limitativo, una preferita forma di realizzazione. These and other objects will be better understood with the following detailed description and with reference to the figures which illustrate, by way of non-limiting example only, a preferred embodiment.
Nei disegni: In the drawings:
la figura 1 mostra schematicamente una preferita forma realizzativa del trovato; Figure 1 schematically shows a preferred embodiment of the invention;
la figura 2 mostra schematicamente una parte della macchina per la produzione della pellicola secondo la presente invenzione: nel caso illustrato si mostra la realizzazione di una pellicola composta da 6 strisce longitudinali parallele con i bordi sovrapposti . Figure 2 schematically shows a part of the machine for producing the film according to the present invention: in the illustrated case the production of a film composed of 6 longitudinal parallel strips with overlapping edges is shown.
La pellicola per imballaggi ad elevata resistenza meccanica secondo l'invenzione, è costituita da più strisce S longitudinali accoppiate sormontando i bordi B laterali con quelli delle strisce S adiacenti. The film for high mechanical resistance packaging according to the invention consists of several longitudinal strips S coupled overlapping the lateral edges B with those of the adjacent strips S.
Il numero delle strisce S che costituiscono la pellicola ad elevata resistenza meccanica che si descrive può variare: ad esempio da tre a dieci strisce S aventi una stessa larghezza o con larghezze diverse . The number of strips S which constitute the high mechanical resistance film described can vary: for example from three to ten strips S having the same width or with different widths.
Una preferita forma realizzativa della pellicola secondo la presente invenzione, mostrata in figura 1, è costituita da sette strisce S larghe dieci cm ciascuna ed i cui bordi B hanno preferibilmente un sormonto di circa un cm. A preferred embodiment of the film according to the present invention, shown in Figure 1, consists of seven strips S ten cm wide each and whose edges B preferably have an overlap of about one cm.
In questo caso, la pellicola così realizzata viene preferibilmente stirata, prima di avvolgerla sulla·bobina di immagazzinaggio e distribuzione, fino a ridurre ad otto cm la larghezza iniziale delle singole strisce S che la compongono. In questo modo si ottiene una pellicola la cui larghezza complessiva è pari a 50 cm. In this case, the film thus produced is preferably stretched, before winding it onto the storage and distribution reel, until the initial width of the individual strips S which compose it is reduced to eight cm. In this way a film is obtained whose overall width is equal to 50 cm.
Si noti che dette strisce S possono avere tutte stessa larghezza o avere larghezze differenti. It should be noted that said strips S can all have the same width or have different widths.
Vantaggiosamente, secondo il trovato è possibile produrre pellicole rinforzate di qualunque larghezza, pur avendo un unico formato per la materia prima, semplificando drasticamente la gestione del magazzino di approvvigionamento. Advantageously, according to the invention it is possible to produce reinforced films of any width, despite having a single format for the raw material, drastically simplifying the management of the supply warehouse.
Con riferimento alla figura 2, si osservi che una volta che le strisce S longitudinali sono state affiancate con i bordi sovrapposti, esse vengono accoppiate in modo noto con dei rulli di accoppiamento (non mostrati) e successivamente vengono sottoposte all'eventuale stiramento desiderato . With reference to Figure 2, it should be noted that once the longitudinal strips S have been placed side by side with the overlapping edges, they are coupled in a known way with coupling rollers (not shown) and are subsequently subjected to any desired stretching.
Infine, è preferibile ribordare i bordi liberi delle strisce laterali ripiegandoli su loro stessi al fine di aumentarne la resistenza alle lacerazioni che potrebbero partire dall'esterno. Finally, it is preferable to edge over the free edges of the side strips by folding them back on themselves in order to increase their resistance to tearing that could start from the outside.
Concludendo, giova notare che la resistenza meccanica della pellicola fin qui descritta è sostanzialmente fornita dalle zone di sormonto dei bordi B: più sormonti ci sono e più è resistente la pellicola. In altre parole, a parità di spessore e di striramento, una pellicola composta da più strisce presenta una resistenza maggiore di una pellicola composta da un numeri di strisce inferiore alla precedente . In conclusion, it should be noted that the mechanical resistance of the film described up to now is substantially provided by the overlapping areas of the edges B: the more overlaps there are, the more resistant the film is. In other words, with the same thickness and stretching, a film composed of several strips has a greater resistance than a film composed of a number of strips lower than the previous one.
La presente invenzione è stata descritta ed illustrata in una sua preferita forma realizzativa, ma è chiaro che qualunque tecnico esperto del ramo potrà apportarvi modifiche e/o sostituzioni equivalenti senza peraltro esulare dall'ambito di tutela della presente privativa industriale. The present invention has been described and illustrated in a preferred embodiment thereof, but it is clear that any person skilled in the art will be able to make equivalent modifications and / or replacements without however going beyond the scope of protection of the present industrial patent.
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM20070070 ITRM20070070A1 (en) | 2007-02-12 | 2007-02-12 | FILM FOR PACKAGING WITH HIGH MECHANICAL STRENGTH |
PCT/IT2008/000087 WO2008099438A2 (en) | 2007-02-12 | 2008-02-12 | High-strength packaging film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM20070070 ITRM20070070A1 (en) | 2007-02-12 | 2007-02-12 | FILM FOR PACKAGING WITH HIGH MECHANICAL STRENGTH |
Publications (1)
Publication Number | Publication Date |
---|---|
ITRM20070070A1 true ITRM20070070A1 (en) | 2008-08-13 |
Family
ID=39592804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITRM20070070 ITRM20070070A1 (en) | 2007-02-12 | 2007-02-12 | FILM FOR PACKAGING WITH HIGH MECHANICAL STRENGTH |
Country Status (2)
Country | Link |
---|---|
IT (1) | ITRM20070070A1 (en) |
WO (1) | WO2008099438A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8981178B2 (en) | 2009-12-30 | 2015-03-17 | Kimberly-Clark Worldwide, Inc. | Apertured segmented films |
US10081123B2 (en) | 2010-12-31 | 2018-09-25 | Kimberly-Clark Worldwide, Inc. | Segmented films with high strength seams |
US8895126B2 (en) | 2010-12-31 | 2014-11-25 | Kimberly-Clark Worldwide, Inc. | Segmented films with high strength seams |
US9676164B2 (en) | 2011-07-18 | 2017-06-13 | Kimberly-Clark Worldwide, Inc. | Extensible sheet material with visual stretch indicator |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5940683B2 (en) * | 1980-12-13 | 1984-10-02 | シンワ化学工業株式会社 | Pallet stretch packaging method using composite stretch film |
FR2617123B1 (en) * | 1987-06-26 | 1989-12-29 | Newtec Int | TAPE WITH LONGITUDINAL REINFORCEMENT, PACKAGING METHOD AND PACKAGING COMPRISING SUCH A TAPE, INSTALLATION AND MACHINE FOR CARRYING OUT THE PACKAGING PROCESS, AND DEVICE FOR CARRYING OUT SUCH A TAPE |
JPH09121794A (en) * | 1995-10-31 | 1997-05-13 | Makoto Suzuki | Packaging sheet for rolled 'sushi' and packaged rolled 'sushi' |
US6592699B1 (en) * | 1999-10-28 | 2003-07-15 | Illinois Tool Works, Inc. | Process for making stretch film having heat-sealed edges |
WO2002096634A1 (en) * | 2001-05-29 | 2002-12-05 | Saltech Inc. | Reinforced plastic film |
ITRM20040412A1 (en) * | 2004-08-12 | 2004-11-12 | Akro Flex S A S Di Garegnani Antonio & C | THIN FILM IN PLASTIC MATERIAL EXTENDABLE FOR PACKAGING, REINFORCED AND STRETCHED AT LEAST PARTIALLY, WITH HIGH MECHANICAL RESISTANCE. |
ITPD20060414A1 (en) * | 2006-11-10 | 2008-05-11 | Eugenio Gobetto Tiozzo | FILM EXTENSIBLE PARTICULARLY FOR PALLETIZATION, AND PROCEDURE FOR THE REALIZATION OF SUCH A FILM |
-
2007
- 2007-02-12 IT ITRM20070070 patent/ITRM20070070A1/en unknown
-
2008
- 2008-02-12 WO PCT/IT2008/000087 patent/WO2008099438A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2008099438A2 (en) | 2008-08-21 |
WO2008099438A3 (en) | 2008-10-09 |
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