AU2003203876B2 - Plastic Film - Google Patents

Plastic Film Download PDF

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Publication number
AU2003203876B2
AU2003203876B2 AU2003203876A AU2003203876A AU2003203876B2 AU 2003203876 B2 AU2003203876 B2 AU 2003203876B2 AU 2003203876 A AU2003203876 A AU 2003203876A AU 2003203876 A AU2003203876 A AU 2003203876A AU 2003203876 B2 AU2003203876 B2 AU 2003203876B2
Authority
AU
Australia
Prior art keywords
film
plastic film
base film
film according
cavities
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.)
Ceased
Application number
AU2003203876A
Other versions
AU2003203876A1 (en
Inventor
Rolf Bachmann
Rinaldo Battegazzore
Jochen Hertlein
Andreas Michalsky
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.)
Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG
Original Assignee
Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG
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 Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG filed Critical Huhtamaki Ronsberg Zweigniederlassung der Huhtamaki Deutschland GmbH and Co KG
Publication of AU2003203876A1 publication Critical patent/AU2003203876A1/en
Application granted granted Critical
Publication of AU2003203876B2 publication Critical patent/AU2003203876B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • 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
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/14—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks folded-up around all sides of the contents from a portion on which the contents are placed
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/16—Metal
    • C09J2400/163—Metal in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin
    • C09J2423/006—Presence of polyolefin in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate

Abstract

The base film (2) is orientated polypropylene, preferably bi-axially orientated polypropylene or polyethylene terephthalate. To the metallized side (3), a printed layer (5) is applied. On the opposite side a cold adhesive (6) is applied sparingly, preferably in strip form.

Description

AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Applicant(s): HUHTAMAKI RONSBERG ZWEIGNIEDERLASSUNG DER HUHTAMAKI DEUTSCHLAND GMBH CO KG Invention Title: PLASTIC FILM The following statement is a full description of this invention, including the best method of performing it known to me/us: Description Plastic film The invention relates to a plastic film, especially for packaging three-dimensional objects that are formed preferably during the packaging process, such as soup cubes in particular, with a base film made from a polyolefin that is metallised on one side.
DE-A-100 21 687 discloses such a film, that is provided on at least one side with an adhesive or sealing layer.
On the basis of this, the aim of the invention is to design a plastic film of the kind outlined above in such a way that it can be produced efficiently and provides the object that is to be packaged with optimum protection.
In the solution to this problem proposed by the invention, an oriented polypropylene film, preferably a biaxially oriented polypropylene film or a PET film, is provided as the base film, on the side of which with the metallisation printing is provided, while a preferably ribbon-shaped pattern coating of cold seal adhesive is applied to the side of the base film facing away from the metallisation.
\\melbflcsl\home$\ValmaKep\Specificaiions\P493 IS.o728IAUdoc 28/04/03 Only the amount of the cold seal adhesive provided to close a pack produced from a section of the plastic film that is needed to achieve a sufficiently tight closure is applied.
In accordance with an advantageous further development of the invention, the printing is covered to some extent by a pattern coating of release lacquer, with the areas to which the lacquer is applied coinciding with those to which the cold seal adhesive is applied.
This is an effective way to prevent layers of the plastic film located on top of each other sticking together when the film is wound to form a reel.
It has proved to be very advantageous in another further development of the invention if a primer and or tie layer is provided between the metallisation and the printing.
A durable bond between the printing and the metallisation is achieved as a result.
In another advantageous further development of the invention a compact film is provided as the base film.
A film with cavities in it can, however, be provided as the base film in accordance with the invention too.
Light refraction occurs on the edges surrounding the cavities and makes the film opaque.
In accordance with the invention, the cavities can take the form of vacuoles that are produced when the film is oriented.
\\melbfiles\homeS\'aIma\Keep\Specificaions\P493 I5.Ro728 I AUdoc 28/04/03 Another possible way to create the cavities is to produce them by foaming the film.
It has proved to be very advantageous if in accordance with the invention the compact base film has a thickness of about 10 to 100 p, preferably 20 to 50 p and in particular 28 to 32 p.
In accordance with another advantageous further development of the invention, the base film with cavities in it has a thickness of about 10 to 100 p, preferably 20 to 50 p and in particular 35 to 42 p.
Two embodiments of the invention are illustrated in the drawings: Fig. 1 is a diagram of the structure of a plastic film with a compact base film that is metallised on one side and Fig. 2 is a diagram of another plastic film with a base film that has cavities in it.
1 in Fig. 1 is a plastic film that has a base film 2 made from oriented polyproplyene (OPP) 30 p thick. This base film 2 is provided with metallisation 3 on one side to which printing 5 has been applied via a primer and or tie layer 4. The base film 2 is provided with a pattern coating of cold seal adhesive 6 on its side facing away from the printing and or metallisation. The printing 5 is provided on the other side with a release layer 7 that is located in accordance with the cold seal adhesive coating. When the plastic film is wound into a reel, the cold seal adhesive and the release layer 7 are located on top of each other and thus prevent the cold seal adhesive 6 from sticking to the adjacent side of the plastic film.
\N\melbfiles\homeS\Vama\Kep\Specifications\P493 5.Ro728IAUdoc 28/04/03 The base film can consist of PET instead of OPP.
An appropriate structure for a plastic film 21 is shown in the embodiment illustrated in Fig. 2. The base film 22 consists, however, of an opaque, oriented polypropylene film (OPP), the opacity of which is produced by vacuoles created during orientation. This base film is 38 t thick and is again provided on one side with metallisation 3, to which a primer and or tie layer 4 is applied. This primer layer enables the subsequently applied printing 5 to bond securely. The side of the base film 22 facing away from the metallisation has a pattern coating of cold seal adhesive 6, application of which is provided in accordance with a release layer 7 applied to the printing 5, which prevents the cold seal adhesive from sticking when the plastic film is wound into a reel.
In order to improve the windability of the plastic film, the areas next to the release layer and or the cold seal adhesive can be filled up with coatings too.
The base film can have been given its opacity by foaming too, with light refraction also occurring on the bubbles produced inside.
For the purposes of this specification it will be clearly understood that the word "comprising" means "including but not limited to", and that the word "comprises" has a corresponding meaning.
It is to be understood that, if any prior art publication is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.
\\melbfilcs\homc$\Valma\eep\Spccifictio\P493 I5.Ro728 IAUdoc 28/04/03

Claims (8)

1. Plastic film 21), especially for packaging three-dimensional objects that are formed preferably during the packaging process, such as soup cubes in particular, with a base film 22) made from a polyolefin or polyethylene terephthalate that is preferably metallised on one side, wherein an oriented polypropylene film, preferably a biaxially oriented polypropylene film or a PET film, is provided as the base film 22), on the side of which with the metallisation printing is provided, while a preferably ribbon-shaped pattern coating of cold seal adhesive is applied to the side of the base film 22) facing away from the metallisation
2. Plastic film according to claim 1, wherein the printing is covered to some extent by a pattern coating of release lacquer with the areas to which the lacquer is applied coinciding with those to which the cold seal adhesive is applied.
3. Plastic film according to claim 1 or 2, wherein a primer and or tie layer is provided between the metallisation and the printing
4. Plastic film according to claim 1, 2 or 3, wherein a compact film is provided as the base film Plastic film according to claim 1, 2 or 3, wherein a film with cavities in it is provided as the base film (22). \\melbfiicshome$\VaIma\Keep\Specificatio \P49315.Ro728 AUdoc 28104/03
6. Plastic film according to claim 5, wherein the cavities take the form of vacuoles that are produced when the film is oriented.
7. Plastic film according to claim 5, wherein the cavities are produced by foaming.
8. Plastic film according to claim 4, wherein the compact base film has a thickness of about 10 to 100 preferably 20 to 50 p and in particular 28 to 32 p.
9. Plastic film according to claim 5, wherein the base film (22) with cavities in it has a thickness of about 10 to 100 p, preferably 20 to 50 p and in particular 35 to 42 p. Dated this 28th day of April 2003 HUHTAMAKI RONSBERG ZWEIGNIEDERLASSUNG DER HUHTAMAKI DEUTSCHLAND GMBH CO KG GRIFFITH HACK Fellows Institute of Patent and Trade Mark Attorneys of Australia \\melbfiles\homeS\Valma\Keep\Specifications\P493 15.Ro728 AUdoc 28/04/03
AU2003203876A 2002-05-11 2003-04-28 Plastic Film Ceased AU2003203876B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10221143.4 2002-05-11
DE10221143A DE10221143B4 (en) 2002-05-11 2002-05-11 plastic film

Publications (2)

Publication Number Publication Date
AU2003203876A1 AU2003203876A1 (en) 2003-12-04
AU2003203876B2 true AU2003203876B2 (en) 2005-08-11

Family

ID=29285323

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003203876A Ceased AU2003203876B2 (en) 2002-05-11 2003-04-28 Plastic Film

Country Status (15)

Country Link
EP (1) EP1361168B1 (en)
CN (1) CN1260063C (en)
AT (1) ATE536997T1 (en)
AU (1) AU2003203876B2 (en)
BR (1) BR0301370A (en)
CA (1) CA2426801C (en)
CO (1) CO5460269A1 (en)
DE (1) DE10221143B4 (en)
ES (1) ES2375793T3 (en)
HK (1) HK1060998A1 (en)
IL (1) IL155499A (en)
NZ (1) NZ525611A (en)
OA (1) OA12411A (en)
PL (1) PL210588B1 (en)
RU (1) RU2247030C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062600A1 (en) * 2004-04-02 2005-10-27 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Windable film for producing a packaging
CN102320172A (en) * 2011-08-05 2012-01-18 大连方盛塑料有限公司 Plastic film
WO2013036324A2 (en) * 2011-09-07 2013-03-14 Exxonmobil Oil Corporation Metallized films, pressure-sensitive label structures, and methods of making same
EP4339230A1 (en) * 2022-09-07 2024-03-20 NanoPolymer Ltd. Multilayer packaging film

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0870695A1 (en) * 1997-04-09 1998-10-14 Pechiney Emballage Flexible Europe Polyolefin film for making a package by folding

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1891363U (en) * 1964-01-14 1964-04-16 Metaplast K G Helmuth Schmoock WRAPPING FILM.
DE4116808A1 (en) * 1991-05-23 1992-11-26 Hoechst Ag CUP-LIKE PACKING WITH PLASTIC LID FILM
DE9111670U1 (en) * 1991-09-19 1991-10-31 Ebert Folien Ag, 6200 Wiesbaden, De
DK9600302U3 (en) * 1996-09-10 1997-12-29 Danapak As packaging Foil
UA395U (en) * 1996-12-17 1999-08-30 Hіна Семенівна Фельштинер MULTILAYER PACKAGING MATERIAL
EP0891930A1 (en) * 1997-07-17 1999-01-20 Alusuisse Technology & Management AG Sheet wrapping material
EP1010519A1 (en) * 1998-12-16 2000-06-21 Alusuisse Technology & Management AG Sterilizable laminated sheet
DE50012235D1 (en) * 1999-10-07 2006-04-20 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg PLASTIC FILM
DE10021687A1 (en) * 2000-05-05 2001-11-08 4P Verpackungen Ronsberg Gmbh Plastic foil for packaging, in particular, cube-shaped products consists of polyolefine, preferably polyethylene or polypropylene
RU2179523C1 (en) * 2000-07-28 2002-02-20 Государственное учреждение Всероссийский научно-исследовательский институт молочной промышленности Laminated packing material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0870695A1 (en) * 1997-04-09 1998-10-14 Pechiney Emballage Flexible Europe Polyolefin film for making a package by folding

Also Published As

Publication number Publication date
CN1260063C (en) 2006-06-21
EP1361168A9 (en) 2004-04-14
CA2426801A1 (en) 2003-11-11
AU2003203876A1 (en) 2003-12-04
ES2375793T3 (en) 2012-03-06
HK1060998A1 (en) 2004-09-03
PL210588B1 (en) 2012-02-29
CA2426801C (en) 2008-06-03
RU2247030C2 (en) 2005-02-27
PL360050A1 (en) 2003-11-17
DE10221143A1 (en) 2003-11-27
DE10221143B4 (en) 2005-03-24
CN1462684A (en) 2003-12-24
BR0301370A (en) 2004-08-24
ATE536997T1 (en) 2011-12-15
CO5460269A1 (en) 2004-11-30
IL155499A0 (en) 2003-11-23
NZ525611A (en) 2004-12-24
EP1361168A2 (en) 2003-11-12
EP1361168A3 (en) 2004-02-11
IL155499A (en) 2006-08-20
EP1361168B1 (en) 2011-12-14
OA12411A (en) 2006-04-18

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired