WO2005075296A1 - A method for wrapping an article with a polymeric film - Google Patents

A method for wrapping an article with a polymeric film Download PDF

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Publication number
WO2005075296A1
WO2005075296A1 PCT/IL2005/000157 IL2005000157W WO2005075296A1 WO 2005075296 A1 WO2005075296 A1 WO 2005075296A1 IL 2005000157 W IL2005000157 W IL 2005000157W WO 2005075296 A1 WO2005075296 A1 WO 2005075296A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
article
polymeric
wrapping
around
Prior art date
Application number
PCT/IL2005/000157
Other languages
French (fr)
Inventor
Yoav Guthman
Maor Segal
Aharon Ben-Soussane
Yiftach Nir
Original Assignee
Polysack Plastic Industries Ltd.
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
Priority claimed from IL16028304A external-priority patent/IL160283A0/en
Application filed by Polysack Plastic Industries Ltd. filed Critical Polysack Plastic Industries Ltd.
Priority to EP05703199A priority Critical patent/EP1723038A1/en
Priority to US10/588,761 priority patent/US20070157566A1/en
Priority to BRPI0507541-6A priority patent/BRPI0507541A/en
Publication of WO2005075296A1 publication Critical patent/WO2005075296A1/en

Links

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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
    • B29C63/40—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using sheet or web-like material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/0878—Shrunk on the bottle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed

Definitions

  • This invention relates to novel uses of polymeric films produced by stretching in the longitudinal direction, and in particular by short-gap stretching.
  • a short-gap-sfretching process is any process involving transferring a heated polymeric film from a first heated roll having a first radius and revolving in a first radial velocity to a second heated roll having a second radius and revolving in a second radial velocity, that is larger than said first radial velocity, through a gap which is as small as possible.
  • Two publications that describe such processes are: US 5,184,379 and US 6,375,781.
  • the present invention provides a method for wrapping an article with a heat shrinkable polymeric film comprising:
  • Typical articles to be wrapped according to the present invention are containers, particularly cylindrical containers, most particularly cylindrical containers with non-uniform diameter such as drink-containing bottles, drinking cans, containers for liquid soap, shampoo containers, batteries, medications, bottles with tamper evidence seals, etc.
  • the invention is not limited to the wrapping of such articles, and may be used for wrapping articles of any shape or form, such as forks, cups, boards, etc.
  • wrapping an article should be construed, in the context of the present invention, as to surrounding the article in close proximity to the outer surface thereof. In many cases, wrapping includes the attachment of the wrapping film to the entire surface of the wrapped portion of the article. However, this is not necessarily the case, and the invention is not limited to such cases.
  • a heat shrinkable film is a film that shrinks upon heating. It may shrink in two dimensions (biaxially shrinkable film) or only in one dimension (monoaxially shrinkable film).
  • the shrinkable films according to the present invention shrink along one direction, while along the other direction they retain their original dimensions, or change by no more than 5%.
  • the stretching of the film is mainly along its longitudinal direction, while contraction in other directions is practically impaired by the use of rollers having between them a distance which is at least ten times smaller than the width of the film (or of the rollers).
  • the distance between the rollers may be in accordance with the present invention smaller than the width of the film in a factor of between 10 and 5000, preferably between about 50 and about 2500.
  • the shrinkable film is used when its shrinkable dimension is in the direction of the film flow, and the wrapping is carried out in the wrap around method.
  • the film wrapped around the article in the sleeve method namely, it is first cut, closed to form a sleeve having its main axis in the direction of the film flow, the article is inserted into the sleeve, which is then heated to shrink around the article.
  • the degree of shrinking obtained in the method according to the invention may be between about 10% and about 90%.
  • the present invention which uses polymeric film produced by the short-gap-stretching process, is the only technical solution known to the inventors to date. Accordingly, the present invention also provides a polymeric sheet that is unidirectionally shrinked along its main axis (namely in the machine direction) to 50% or less of its original dimension, preferably to 40% or less.
  • the polymeric sheet is made of polyolefin, such as polyethylene or polypropylene
  • the state of the art allows unidirectional shrinking to no less than 75% of the original dimension in the machine direction
  • the present invention provides sheets made by such polymers that are shrinked to 70% or less, preferably to 60% or less of their original dimension.
  • the possibility to shrink polymeric sheets to a large degree allows wrapping an article in the wrap-around method, even if its circumference in one location is considerably different from the circumference in another location. In this connection, considerably different means difference of 50%) or more, and in the wrapping polymer is polyolefm, difference of 30%o or more.
  • a polymeric film, for use in accordance with the invention may be composed of any polymeric material known in the art per se, and some examples for these are: polystyrene, polyolefins, such as polyethylene, polypropylene, polyvinylchloride, polyamides, Polyester, nylon, copolymers thereof, mixtures thereof, cyclic olefinic copolymers, etc.
  • a shrinkable polymeric film that is a multilayer is also suitable for use in accordance with the invention.
  • Non- limiting examples for suitable heat shrinkable polymers are such multilayers wherein all the multilayer is stretched as in (a) above, and a multilayer that is produced by attaching a layer that is stretched as in (a) above to another layer, for example, to a bidirectionally oriented layer. Such attaching may be carried out in any of the methods known in the art, such as lamination, coextrusion, and the like.
  • the wrapping may have characteristics such as being a barrier to gases such as oxygen, nitrogen, air, and C0 2 , and/or to water vapor, UV rays, or combinations thereof. In this way, wrappings that lengthen the shelf life of articles that are sensitive to water, oxygen, and/or UV may be obtained.
  • the temperature to which a film must be heated to shrink it is as known in the art regarding similar films that were obtained by other techniques (i.e. between about 80 and about 120°C, depending on the kind of polymer applied), although some adjustments may be required.
  • a polymeric film was produced from a blend of two polyethylene resins, one of which was produced in Spain by Dow Plastics and sold under the trade-name of DowlexTM, and the other produced by Basell Polyolefms (Germany) and sold under the trade-name of HostalenTM.
  • the polymer was processed in a short-gap-stretching machine produced by Lenzing Aktiengesellschaft, described in US 5,184,379, at a heating temperature of 100°C - 120°C and a stretch ratio of 1 :6 to produce a monoaxially heat shrinkable film.
  • the film produced in this way underwent shrinkage by up to 70% upon subsequent heating to 100°C - 110°C.
  • the obtained monoaxially shrinkable film was used for wrapping a plastic bottle in the shape of a woman, having a maximal outer diameter of 6.84 cm and minimal outer diameter of 6.05 cm.
  • the wrapping was carried out on a KRONES roll-fed shrink labeling systems type Krones Contiroll 720-12, at 18,000 bottles per hour and at a tunnel temperature of 250°C.
  • the film was wrapped around a drum, cut to form a label, and glue was applied to the label's edges. Then the label was wrapped around the bottle such that the glued edges attached the label to the bottle, and the labeled bottle was heated to let the label shrink.
  • This is in contrast to the sleeve method, which is not in accordance with the present invention, wherein the article to be wrapped is introduced into a sleeve made of the wrapping polymer, and then the sleeve is shrunk.

Abstract

The present invention provides a polymeric sheet prepared by short-gap stretching technique and being shrinked along its main axis. Such sheets may be utilized for wrap-around applications, obtaining shrinkage of polymeric sheets to particularly small dimensions along the machine direction, and wrapping articles in the wrap-around method even when these articles include locations of circumferences of considerably different dimensions.

Description

A METHOD FOR WRAPPING AN ARTICLE WITH A POLYMERIC FILM
FIELD OF THE INVENTION This invention relates to novel uses of polymeric films produced by stretching in the longitudinal direction, and in particular by short-gap stretching.
BACKGROUND OF THE INVENTION In the context of the present invention, a short-gap-sfretching process is any process involving transferring a heated polymeric film from a first heated roll having a first radius and revolving in a first radial velocity to a second heated roll having a second radius and revolving in a second radial velocity, that is larger than said first radial velocity, through a gap which is as small as possible. Two publications that describe such processes are: US 5,184,379 and US 6,375,781. In the article entitled "Industrial Applications Of SML Short Gap Monoaxially Film Stretching Process" (http://olvmp.wu- wien.ac.at:8080/usr h98a/h9851644/news/news8.htm ), the author describes the short-gap-stretching method he uses, some of the properties of films obtained thereby, and a variety of possible uses thereof. The present invention suggests novel uses for such films, and even more generally, for films produced by unidirectional stretching in the longitudinal direction. SUMMARY OF THE INVENTION According to one of its aspects, the present invention provides a method for wrapping an article with a heat shrinkable polymeric film comprising:
(a) providing a polymeric film produced by a process including stretching said film mainly in its longitudinal direction, said stretching being by means comprising at least one pair of rollers rotating in mutually different linear velocities, the gap between said rollers being at least 10 times smaller than the width of said film to obtain a heat shrinkable polymeric film;
(b) surrounding at least a portion of the outer surface of said article with a portion of said heat shrinkable polymeric film; and
(c) heating said heat shrinkable polymeric film so as to shrink it around said article. According to another aspect of the present invention, there is provided an article wrapped by a method according to the invention.
Typical articles to be wrapped according to the present invention are containers, particularly cylindrical containers, most particularly cylindrical containers with non-uniform diameter such as drink-containing bottles, drinking cans, containers for liquid soap, shampoo containers, batteries, medications, bottles with tamper evidence seals, etc. However, the invention is not limited to the wrapping of such articles, and may be used for wrapping articles of any shape or form, such as forks, cups, boards, etc. The term wrapping an article should be construed, in the context of the present invention, as to surrounding the article in close proximity to the outer surface thereof. In many cases, wrapping includes the attachment of the wrapping film to the entire surface of the wrapped portion of the article. However, this is not necessarily the case, and the invention is not limited to such cases. A heat shrinkable film is a film that shrinks upon heating. It may shrink in two dimensions (biaxially shrinkable film) or only in one dimension (monoaxially shrinkable film). The shrinkable films according to the present invention shrink along one direction, while along the other direction they retain their original dimensions, or change by no more than 5%. The stretching of the film is mainly along its longitudinal direction, while contraction in other directions is practically impaired by the use of rollers having between them a distance which is at least ten times smaller than the width of the film (or of the rollers). The distance between the rollers may be in accordance with the present invention smaller than the width of the film in a factor of between 10 and 5000, preferably between about 50 and about 2500. According to one embodiment of the invention, the shrinkable film is used when its shrinkable dimension is in the direction of the film flow, and the wrapping is carried out in the wrap around method. According to another embodiment, the film wrapped around the article in the sleeve method, namely, it is first cut, closed to form a sleeve having its main axis in the direction of the film flow, the article is inserted into the sleeve, which is then heated to shrink around the article. The degree of shrinking obtained in the method according to the invention may be between about 10% and about 90%. While 20% shrinkage may also be obtained with other production technologies, for applications where shrinkage of 60% or more is required, the present invention, which uses polymeric film produced by the short-gap-stretching process, is the only technical solution known to the inventors to date. Accordingly, the present invention also provides a polymeric sheet that is unidirectionally shrinked along its main axis (namely in the machine direction) to 50% or less of its original dimension, preferably to 40% or less. In case the polymeric sheet is made of polyolefin, such as polyethylene or polypropylene, the state of the art allows unidirectional shrinking to no less than 75% of the original dimension in the machine direction, and the present invention provides sheets made by such polymers that are shrinked to 70% or less, preferably to 60% or less of their original dimension. The possibility to shrink polymeric sheets to a large degree allows wrapping an article in the wrap-around method, even if its circumference in one location is considerably different from the circumference in another location. In this connection, considerably different means difference of 50%) or more, and in the wrapping polymer is polyolefm, difference of 30%o or more. A polymeric film, for use in accordance with the invention may be composed of any polymeric material known in the art per se, and some examples for these are: polystyrene, polyolefins, such as polyethylene, polypropylene, polyvinylchloride, polyamides, Polyester, nylon, copolymers thereof, mixtures thereof, cyclic olefinic copolymers, etc. In particular, a shrinkable polymeric film that is a multilayer is also suitable for use in accordance with the invention. Non- limiting examples for suitable heat shrinkable polymers are such multilayers wherein all the multilayer is stretched as in (a) above, and a multilayer that is produced by attaching a layer that is stretched as in (a) above to another layer, for example, to a bidirectionally oriented layer. Such attaching may be carried out in any of the methods known in the art, such as lamination, coextrusion, and the like. In accordance with the polymer and additives used, the wrapping may have characteristics such as being a barrier to gases such as oxygen, nitrogen, air, and C02, and/or to water vapor, UV rays, or combinations thereof. In this way, wrappings that lengthen the shelf life of articles that are sensitive to water, oxygen, and/or UV may be obtained. The temperature to which a film must be heated to shrink it is as known in the art regarding similar films that were obtained by other techniques (i.e. between about 80 and about 120°C, depending on the kind of polymer applied), although some adjustments may be required.
DETAILED DESCRIPTION OF A POSSIBLE EMBODIMENT In order to understand the invention and to see how it may be carried out in practice, a possible embodiment will now be described, by way of non-limiting example only. A polymeric film was produced from a blend of two polyethylene resins, one of which was produced in Spain by Dow Plastics and sold under the trade-name of Dowlex™, and the other produced by Basell Polyolefms (Germany) and sold under the trade-name of Hostalen™. The polymer was processed in a short-gap-stretching machine produced by Lenzing Aktiengesellschaft, described in US 5,184,379, at a heating temperature of 100°C - 120°C and a stretch ratio of 1 :6 to produce a monoaxially heat shrinkable film. The film produced in this way underwent shrinkage by up to 70% upon subsequent heating to 100°C - 110°C. The obtained monoaxially shrinkable film was used for wrapping a plastic bottle in the shape of a woman, having a maximal outer diameter of 6.84 cm and minimal outer diameter of 6.05 cm. The wrapping was carried out on a KRONES roll-fed shrink labeling systems type Krones Contiroll 720-12, at 18,000 bottles per hour and at a tunnel temperature of 250°C. The film was wrapped around a drum, cut to form a label, and glue was applied to the label's edges. Then the label was wrapped around the bottle such that the glued edges attached the label to the bottle, and the labeled bottle was heated to let the label shrink. This is in contrast to the sleeve method, which is not in accordance with the present invention, wherein the article to be wrapped is introduced into a sleeve made of the wrapping polymer, and then the sleeve is shrunk.

Claims

CLAIMS:
1. A method for wrapping an article with a heat shrinkable polymeric film comprising: (a) providing a polymeric film produced by a process including stretching said film mainly in its longitudinal direction, said stretching being by means comprising at least one pair of rollers rotating in mutually different linear velocities, the gap between said rollers being at least 10 times smaller than the width of said film to obtain a heat shrinkable polymeric film; (b) surrounding at least a portion of the outer surface of said article with a portion of said heat shrinkable polymeric film; and (c) heating said heat shrinkable polymeric film so as to shrink it around said article.
2. A method according to claim 1, wherein said gap is smaller than the width of said film by a factor of between 10 and 5000.
3. A method according to claim 2, wherein said factor is between 50 and 2500.
4. A method according to any one of claims 1 to 3, wherein said wrapping around is carried out in the wrap around method.
5. A method according to any one of claims 1 to 3, wherein said wrapping is made in the sleeve method.
6. A method according to any one of claims 1 to 5 wherein said article is a container.
7. A method according to claim 6 wherein said container is cylindrical.
8. A method according to claim 7 wherein said cylindrical container is of non- uniform diameter.
9. A method according to the preceding claim, wherein the shrinkable film is used with its shrinkable dimension in the direction of the film flow.
10. A method according to any one of the preceding claims, wherein said film shrinks to between about 90% and about 10% of its original dimension.
11. A method according to claim 10 wherein said fihn shrinks to about 40% or less of its original dimensions.
12. A method according to any one of the preceding claims, wherein said polymeric film comprises a polymer selected from the group consisting of: polystyrene, polyolefins, polyvinylchloride, polyamides, Polyester, nylon, copolymers thereof, and mixtures thereof.
13. A method according to claim 12 wherein said polyolefϊn is selected from the group consisting of polyethylene and polypropylene.
14. A method according to any one of the preceding claims, wherein said polymer film is capable of acting as a barrier against gas diffusion and or UV radiation.
15. A method according to claim 14 wherein said gas is oxygen, nitrogen, air, CO2 and/or water vapor.
16. An article wrapped according to any one of the preceding claims.
17. An article according to claim 16, having a form of a cylinder with non- uniform diameter.
18. An article according to claim 16, wherein the film wrapped around it is printed to form a label.
19. A method for protecting an article from damaging radiation, comprising wrapping said article in accordance with a method according to any one of claims 1-15 .
20. A method for lengthening the shelf life of a product that is sensitive to humidity, oxygen, nitrogen, air, and/or CO2, comprising wrapping said article in accordance with a method according to any of claims 1-15.
21. A method according to claim 1 comprising: (a) providing a polymeric fihn produced by a process including stretching said film mainly in its longitudinal direction, said stretching being by means comprising at least one pair of rollers rotating in mutually different linear velocities, the gap between said rollers being at least 10 times smaller than the width of said film to obtain a heat-shrinkable polymeric film; (b) attaching said heat shrinkable polymeric film to at least one polymeric film to obtain a heat shrinkable multilayer (c) surrounding at least a portion of the outer surface of said article with a portion of said heat shrinkable multilayer; and (d) heating said heat shrinkable multilayer so as to shrink it around said article.
22. A method according to the preceding claim, wherein the attaching mentioned in (b) is carried out by lamination.
23. A method according to claim 21, wherein the attaching mentioned in (b) is carried out by coextrusion.
24. A method according to claim 1, wherein said polymeric film is composed of a plurality of layers attached to each other to produce a multilayer.
25. A polymeric sheet that is unidirectionally shrinked in the machine direction to 50% or less of its original dimension.
26. A polymeric sheet according to claim 25, shrinked in the machine direction to 40% or less of its original dimension.
27. A polymeric sheet made of polyolefin, unidirectionally shrinked in the machine direction to 70% or less of its original dimension.
28. A polymeric sheet according to claim 27, wherein said shrink is to 60% or less of the original dimension.
29. An article wrapped with a polymeric sheet in a wrap-around method along a first and a second location, the circumference in said first location being smaller in 50% or more than a circumference in the second location.
30. An article wrapped with a polymeric sheet in a wrap-around method along a first and a second location, the circumference in said first location being smaller in 30% or more than a circumference in the second location, characterized in that said polymeric sheet is olefinic.
31. An article according to claim 30, wherein said polymeric sheet is made of polyethylene and/or polypropylene.
PCT/IL2005/000157 2004-02-09 2005-02-09 A method for wrapping an article with a polymeric film WO2005075296A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05703199A EP1723038A1 (en) 2004-02-09 2005-02-09 A method for wrapping an article with a polymeric film
US10/588,761 US20070157566A1 (en) 2005-02-09 2005-02-09 Article and method for wrapping such with a polymeric film
BRPI0507541-6A BRPI0507541A (en) 2004-02-09 2005-02-09 method for wrapping an article with a thermoset polymeric film, articles, and polymer sheet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL16028304A IL160283A0 (en) 2003-08-05 2004-02-09 A method for wrapping an article with a polymeric film
IL160283 2004-02-09

Publications (1)

Publication Number Publication Date
WO2005075296A1 true WO2005075296A1 (en) 2005-08-18

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Application Number Title Priority Date Filing Date
PCT/IL2005/000157 WO2005075296A1 (en) 2004-02-09 2005-02-09 A method for wrapping an article with a polymeric film

Country Status (5)

Country Link
EP (1) EP1723038A1 (en)
BR (1) BRPI0507541A (en)
RU (1) RU2391269C2 (en)
UA (1) UA90257C2 (en)
WO (1) WO2005075296A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009000564A1 (en) * 2007-06-22 2008-12-31 Henkel Kommanditgesellschaft Auf Aktien Packaging means with improved water vapour permeability
US9221573B2 (en) 2010-01-28 2015-12-29 Avery Dennison Corporation Label applicator belt system
US10689494B2 (en) 2005-08-04 2020-06-23 Polysack Flexible Packaging Ltd. Polymeric sheets and articles wrapped therewith

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8282754B2 (en) 2007-04-05 2012-10-09 Avery Dennison Corporation Pressure sensitive shrink label
CN101679818A (en) 2007-04-05 2010-03-24 艾利丹尼森公司 Pressure sensitive shrink label
EP2569219B1 (en) * 2010-05-12 2014-03-19 Avery Dennison Corporation Heat shrink packaging system and method

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FR1552515A (en) * 1967-01-30 1969-01-03 Shell Int Research
US3796785A (en) * 1971-03-15 1974-03-12 Bayer Ag Method of stretching a thermoplastic sheet using a shortened stretching zone
US4059400A (en) * 1976-03-31 1977-11-22 Owens-Illinois, Inc. Oven apparatus for shrinking thermoplastic sleeve wraps on glass containers
DE3821164A1 (en) * 1987-06-24 1989-01-05 Newtec Int Method and device for packaging a bulky article with an irregular shape, for example a vehicle in a plastic film, and package thus produced
US5175049A (en) * 1989-04-27 1992-12-29 The Dow Chemical Company Polyolefin laminate cling films
US5234731A (en) * 1990-05-25 1993-08-10 W.R. Grace & Co.-Conn. Thermoplastic multi-layer packaging film and bags made therefrom having two layers of very low density polyethylene
EP1095758A2 (en) * 1999-10-28 2001-05-02 Illinois Tool Works Inc. Apparatus and high speed process for making highly stretched film
EP1120347A2 (en) * 2000-01-25 2001-08-01 G.+L. Heikaus Kunststoffverarbeitung und Verpackungen GmbH Dispenser for rolls of film material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1552515A (en) * 1967-01-30 1969-01-03 Shell Int Research
US3796785A (en) * 1971-03-15 1974-03-12 Bayer Ag Method of stretching a thermoplastic sheet using a shortened stretching zone
US4059400A (en) * 1976-03-31 1977-11-22 Owens-Illinois, Inc. Oven apparatus for shrinking thermoplastic sleeve wraps on glass containers
DE3821164A1 (en) * 1987-06-24 1989-01-05 Newtec Int Method and device for packaging a bulky article with an irregular shape, for example a vehicle in a plastic film, and package thus produced
US5175049A (en) * 1989-04-27 1992-12-29 The Dow Chemical Company Polyolefin laminate cling films
US5234731A (en) * 1990-05-25 1993-08-10 W.R. Grace & Co.-Conn. Thermoplastic multi-layer packaging film and bags made therefrom having two layers of very low density polyethylene
EP1095758A2 (en) * 1999-10-28 2001-05-02 Illinois Tool Works Inc. Apparatus and high speed process for making highly stretched film
EP1120347A2 (en) * 2000-01-25 2001-08-01 G.+L. Heikaus Kunststoffverarbeitung und Verpackungen GmbH Dispenser for rolls of film material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10689494B2 (en) 2005-08-04 2020-06-23 Polysack Flexible Packaging Ltd. Polymeric sheets and articles wrapped therewith
WO2009000564A1 (en) * 2007-06-22 2008-12-31 Henkel Kommanditgesellschaft Auf Aktien Packaging means with improved water vapour permeability
US9221573B2 (en) 2010-01-28 2015-12-29 Avery Dennison Corporation Label applicator belt system
US9637264B2 (en) 2010-01-28 2017-05-02 Avery Dennison Corporation Label applicator belt system

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Publication number Publication date
RU2006130853A (en) 2008-03-20
UA90257C2 (en) 2010-04-26
BRPI0507541A (en) 2007-07-03
RU2391269C2 (en) 2010-06-10
EP1723038A1 (en) 2006-11-22

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