CA2426984A1 - Plastic film - Google Patents
Plastic film Download PDFInfo
- Publication number
- CA2426984A1 CA2426984A1 CA002426984A CA2426984A CA2426984A1 CA 2426984 A1 CA2426984 A1 CA 2426984A1 CA 002426984 A CA002426984 A CA 002426984A CA 2426984 A CA2426984 A CA 2426984A CA 2426984 A1 CA2426984 A1 CA 2426984A1
- Authority
- CA
- Canada
- Prior art keywords
- film
- plastic film
- base film
- printing
- 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.)
- Abandoned
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
Abstract
Plastic film (1, 21), especially for packaging three-dimensional objects such as soup cubes in particular, with a base film (2, 22) made from a polyolefin or polyethylene terephthalate that is preferably metallised on one side, where an oriented polypropylene film, preferably a biaxially oriented polypropylene film or a PET film, is provided as the base film (2, 22), on one side of which, preferably the side with the metallisation (3), printing (5) is provided, to which in turn a pattern coating of a sealing lacquer (6) that seals at a raised temperature is applied.
Description
Description Plastic film The invention relates to a plastic film, especially for packaging three-dimensional objects such as soup cubes in particular, with a base film made from a polyolefin or polyethylene terephthalate that is preferably metallised on one side.
DE-A-199 48 286 discloses a plastic film, particularly for packaging preferably cube-shaped products such as soup cubes, where the plastic film consists of a polyolefin film, preferably PE or PP.
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 simple packaging of the objects and largely airtight closure of them is guaranteed.
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 one side of which, preferably the side with the metallisation, printing z is provided, to which in turn a pattern coating of a sealing lacquer that seals at a raised temperature is applied.
Polypropylene film oriented in one direction or biaxially and PET film have very good tightness properties, which are improved even more by the addition of metallisation on one side.
The pattern coated sealing lacquer permits tight closure of a pack made from this plastic elm that is folded around the object, with the pattern application making sure that only as much sealing lacquer is used as is necessary for closing purposes.
In accordance with an advantageous further development of the invention, the areas of the printing and / or metallisation to which the sealing lacquer is not applied are provided with an overlacquer that is also pattern coated.
This means that these areas of the print motif and / or the metallisation in addition to those coated with the sealing lacquer are protected and the thickness of the film remains consistent across its entire width, so that even winding of the film is possible.
In another advantageous further development of the invention, a primer and /
or tie layer is provided between the metallisation and the printing.
It has proved to be very advantageous if in accordance with 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.
.. CA 02426984 2003-04-28 Both types of film have proved to be very effective in this context, with the film with cavities in it appearing to be largely opaque, because light refraction occurs at the edges of the cavities.
The cavities can take the form of vacuoles that are produced when the film is oriented.
It is, however, also possible to produce the cavities by foaming.
If a compact base film is used, a thickness of about 10 to 100 1z, preferably 20 to 50 ~.
and in particular 28 to 32 ~, is provided for this film in accordance with the invention.
If a base film with cavities is used on the other hand, a thickness of about 10 to 100 ~ , preferably 20 to 50 ~, and in particular 35 to 40 ~ has proved to be advantageous.
It is provided in another advantageous further development of the invention that the side of the base film facing away from the printing that is located preferably on the inside is provided with at least one further layer.
One embodiment of the invention is illustrated in the drawings:
Fig. 1 is a diagrammatic cross section of a film structure with a clear film and Fig. 2 is a diagrammatic cross section of another film structure with an opaque film.
1 in Fig. 1 is a plastic film that has a base film 2 which consists of oriented polyproplyene (0PP). The orientation can be carried out either in one direction or biaxially. This base film 2 is provided with metallisation 3 on one side. To improve ~ bonding, the metallisation 3 is provided on its side facing away from the base film 2 with a primer Layer 4, to which in W rn printing 5 is applied. A pattern coating of a sealing lacquer 6 that seals at a raised temperature is applied to this printing 5, with the sections to which this sealing lacquer 6 is not applied being provided with an overlacquer 7.
A thickness of 30 p, has proved to be effective for the base film 2 made from oriented polypropylene (OPP). The areas to which the sealing lacquer 6 are applied are arranged in such a way that tight closures can be produced when a section of the plastic film 1 is folded up around a three-dimensional object that is not illustrated.
The main difference in the embodiment of a plastic film 21 as shown in Fig. 2 is that an opaque and oriented polypropylene film (OPP) with a thickness of 38 p, is used as the base film 22.
The opacity of the base film is produced during orientation, when vacuoles are formed in the film and cause refraction of light.
The cavities can, however, also be produced by foaming the film.
The base film 22 has metallisation 3 in this case as well, to which printing S
has been applied via a primer layer 4. A pattern coating of sealing lacquer 6 is applied to this printing 5 too, so that this lacquer is only present at the places needed to form and close a pack. The remaining sections are again provided with an overlacquer 7.
A n application thickness of 1 to 5 g/m~ is specified for the overlacquer 7;
this thickness can vary between 0.1 and 15 g/mz according to requir ements and is adapted to the thickness of the sealing lacquer 6 that is applied.
The side of the base film 22 facing away from the metallisation can - as the illustration shows - be provided with another coating 8, in order to acl.~ieve fzu-ther barrier properties.
A PET film can be used as the base film instead of a polypropylene film.
DE-A-199 48 286 discloses a plastic film, particularly for packaging preferably cube-shaped products such as soup cubes, where the plastic film consists of a polyolefin film, preferably PE or PP.
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 simple packaging of the objects and largely airtight closure of them is guaranteed.
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 one side of which, preferably the side with the metallisation, printing z is provided, to which in turn a pattern coating of a sealing lacquer that seals at a raised temperature is applied.
Polypropylene film oriented in one direction or biaxially and PET film have very good tightness properties, which are improved even more by the addition of metallisation on one side.
The pattern coated sealing lacquer permits tight closure of a pack made from this plastic elm that is folded around the object, with the pattern application making sure that only as much sealing lacquer is used as is necessary for closing purposes.
In accordance with an advantageous further development of the invention, the areas of the printing and / or metallisation to which the sealing lacquer is not applied are provided with an overlacquer that is also pattern coated.
This means that these areas of the print motif and / or the metallisation in addition to those coated with the sealing lacquer are protected and the thickness of the film remains consistent across its entire width, so that even winding of the film is possible.
In another advantageous further development of the invention, a primer and /
or tie layer is provided between the metallisation and the printing.
It has proved to be very advantageous if in accordance with 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.
.. CA 02426984 2003-04-28 Both types of film have proved to be very effective in this context, with the film with cavities in it appearing to be largely opaque, because light refraction occurs at the edges of the cavities.
The cavities can take the form of vacuoles that are produced when the film is oriented.
It is, however, also possible to produce the cavities by foaming.
If a compact base film is used, a thickness of about 10 to 100 1z, preferably 20 to 50 ~.
and in particular 28 to 32 ~, is provided for this film in accordance with the invention.
If a base film with cavities is used on the other hand, a thickness of about 10 to 100 ~ , preferably 20 to 50 ~, and in particular 35 to 40 ~ has proved to be advantageous.
It is provided in another advantageous further development of the invention that the side of the base film facing away from the printing that is located preferably on the inside is provided with at least one further layer.
One embodiment of the invention is illustrated in the drawings:
Fig. 1 is a diagrammatic cross section of a film structure with a clear film and Fig. 2 is a diagrammatic cross section of another film structure with an opaque film.
1 in Fig. 1 is a plastic film that has a base film 2 which consists of oriented polyproplyene (0PP). The orientation can be carried out either in one direction or biaxially. This base film 2 is provided with metallisation 3 on one side. To improve ~ bonding, the metallisation 3 is provided on its side facing away from the base film 2 with a primer Layer 4, to which in W rn printing 5 is applied. A pattern coating of a sealing lacquer 6 that seals at a raised temperature is applied to this printing 5, with the sections to which this sealing lacquer 6 is not applied being provided with an overlacquer 7.
A thickness of 30 p, has proved to be effective for the base film 2 made from oriented polypropylene (OPP). The areas to which the sealing lacquer 6 are applied are arranged in such a way that tight closures can be produced when a section of the plastic film 1 is folded up around a three-dimensional object that is not illustrated.
The main difference in the embodiment of a plastic film 21 as shown in Fig. 2 is that an opaque and oriented polypropylene film (OPP) with a thickness of 38 p, is used as the base film 22.
The opacity of the base film is produced during orientation, when vacuoles are formed in the film and cause refraction of light.
The cavities can, however, also be produced by foaming the film.
The base film 22 has metallisation 3 in this case as well, to which printing S
has been applied via a primer layer 4. A pattern coating of sealing lacquer 6 is applied to this printing 5 too, so that this lacquer is only present at the places needed to form and close a pack. The remaining sections are again provided with an overlacquer 7.
A n application thickness of 1 to 5 g/m~ is specified for the overlacquer 7;
this thickness can vary between 0.1 and 15 g/mz according to requir ements and is adapted to the thickness of the sealing lacquer 6 that is applied.
The side of the base film 22 facing away from the metallisation can - as the illustration shows - be provided with another coating 8, in order to acl.~ieve fzu-ther barrier properties.
A PET film can be used as the base film instead of a polypropylene film.
Claims (10)
1. Plastic film (1, 21), especially for packaging three-dimensional objects such as soup cubes in particular, with a base film (2, 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 (2, 22), on one side of which, preferably the side with the metallisation (3), printing (5) is provided, to which in turn a pattern coating of a sealing lacquer (6) that seals at a raised temperature is applied.
2. Plastic film according to claim 1, wherein the areas of the printing (5) to which the sealing lacquer (6) is not applied are provided with an overlacquer (7) that is also pattern coated.
3. Plastic film according to claim 1 or 2, wherein a primer and / or tie layer (4) is provided between the metallisation (3) and the printing (5).
4. Plastic film according to one of claims 1, 2 or 3, wherein a compact film is provided as the base film (2).
5. Plastic film according to one of claims 1, 2 or 3, wherein a film with cavities in it is provided as the base film (22).
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 (2) has a thickness of about 10 to 100 µ, preferably 20 to 50 µ and in particular 28 to 32 µ.
9. Plastic film according to claim 5, wherein the base film (22) with cavities in it has a thickness of about 10 to 100 µ, preferably 20 to 50 µ and in particular 35 to 40 µ.
10. Plastic film according to one of the previous claims, wherein the side of the base film (2, 22) facing away from the printing (5) that is located preferably on the inside is provided with at least one further layer (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10221141A DE10221141B4 (en) | 2002-05-11 | 2002-05-11 | plastic film |
| DE10221141.8 | 2002-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2426984A1 true CA2426984A1 (en) | 2003-11-11 |
Family
ID=29285322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002426984A Abandoned CA2426984A1 (en) | 2002-05-11 | 2003-04-28 | Plastic film |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP1361171B1 (en) |
| CN (1) | CN100556686C (en) |
| AT (1) | ATE461126T1 (en) |
| AU (1) | AU2003203874B2 (en) |
| BR (1) | BR0301371B1 (en) |
| CA (1) | CA2426984A1 (en) |
| CO (1) | CO5460268A1 (en) |
| DE (2) | DE10221141B4 (en) |
| ES (1) | ES2341230T3 (en) |
| IL (1) | IL155498A (en) |
| MX (1) | MXPA03004082A (en) |
| MY (1) | MY164489A (en) |
| OA (1) | OA12410A (en) |
| PL (1) | PL207013B1 (en) |
| PT (1) | PT1361171E (en) |
| RU (1) | RU2245792C1 (en) |
| ZA (1) | ZA200303107B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545047C (en) * | 2007-01-01 | 2009-09-30 | 周世均 | A kind of woven bag and production technology thereof and device |
| JP5335126B1 (en) * | 2012-03-30 | 2013-11-06 | 日新製鋼株式会社 | Composite in which painted metal base material and molded body of thermoplastic resin composition are joined, and method for producing the same |
| CN103057226A (en) * | 2013-01-30 | 2013-04-24 | 合肥美的荣事达电冰箱有限公司 | Refrigeration device and panel used for same |
| EP3698967A1 (en) | 2019-02-21 | 2020-08-26 | Amcor Flexibles Sarrebourg | Packaging film |
| EP4339230A1 (en) | 2022-09-07 | 2024-03-20 | NanoPolymer Ltd. | Multilayer packaging film |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978260A (en) * | 1975-07-10 | 1976-08-31 | American Can Company | Substantially curl-free semi-rigid support member for food packages |
| DE9111670U1 (en) * | 1991-09-19 | 1991-10-31 | Ebert Folien Ag, 6200 Wiesbaden, De | |
| CN1225056A (en) * | 1996-05-07 | 1999-08-04 | 美孚石油公司 | Metallized multilayer packaging film |
| DK9600302U3 (en) * | 1996-09-10 | 1997-12-29 | Danapak As | packaging Foil |
| FR2761960B1 (en) * | 1997-04-09 | 1999-05-28 | Pechiney Emballage Flexible Eu | POLYOLEFIN-BASED FILM FOR FORMING A FOLDING PACKAGE |
| FR2766199B1 (en) * | 1997-07-17 | 1999-10-22 | Toray Plastics Europ Sa | COMPOSITE POLYESTER FILMS WITH BARRIER PROPERTIES |
| 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 |
| RU2266246C2 (en) * | 1999-10-07 | 2005-12-20 | Хутамаки Ронсберг Цвайгнидерлассунг Дер Хутамаки Дойчланд Гмбх Унд Ко.Кг | Synthetic 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 |
| DE19948286B4 (en) * | 1999-10-07 | 2013-07-18 | Huhtamaki Ronsberg Zn Der Huhtamaki Deutschland Gmbh & Co. Kg | Packaging film composite for packaging soup cubes and use thereof for packing soup cubes |
-
2002
- 2002-05-11 DE DE10221141A patent/DE10221141B4/en not_active Expired - Lifetime
-
2003
- 2003-04-16 IL IL155498A patent/IL155498A/en not_active IP Right Cessation
- 2003-04-17 MY MYPI20031441A patent/MY164489A/en unknown
- 2003-04-22 DE DE50312511T patent/DE50312511D1/en not_active Expired - Lifetime
- 2003-04-22 AT AT03009156T patent/ATE461126T1/en not_active IP Right Cessation
- 2003-04-22 ES ES03009156T patent/ES2341230T3/en not_active Expired - Lifetime
- 2003-04-22 EP EP03009156A patent/EP1361171B1/en not_active Expired - Lifetime
- 2003-04-22 PT PT03009156T patent/PT1361171E/en unknown
- 2003-04-23 ZA ZA200303107A patent/ZA200303107B/en unknown
- 2003-04-28 CA CA002426984A patent/CA2426984A1/en not_active Abandoned
- 2003-04-28 AU AU2003203874A patent/AU2003203874B2/en not_active Ceased
- 2003-05-06 OA OA1200300129A patent/OA12410A/en unknown
- 2003-05-07 BR BRPI0301371-5A patent/BR0301371B1/en active IP Right Grant
- 2003-05-08 RU RU2003113548/04A patent/RU2245792C1/en active
- 2003-05-08 CO CO03038550A patent/CO5460268A1/en active IP Right Grant
- 2003-05-08 MX MXPA03004082A patent/MXPA03004082A/en active IP Right Grant
- 2003-05-09 PL PL360049A patent/PL207013B1/en unknown
- 2003-05-09 CN CNB031313094A patent/CN100556686C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE461126T1 (en) | 2010-04-15 |
| PT1361171E (en) | 2010-05-14 |
| ES2341230T3 (en) | 2010-06-17 |
| DE10221141A1 (en) | 2003-11-27 |
| AU2003203874B2 (en) | 2009-03-05 |
| EP1361171A2 (en) | 2003-11-12 |
| ZA200303107B (en) | 2003-07-28 |
| EP1361171B1 (en) | 2010-03-17 |
| CN100556686C (en) | 2009-11-04 |
| BR0301371A (en) | 2004-08-24 |
| PL207013B1 (en) | 2010-10-29 |
| EP1361171A3 (en) | 2004-06-02 |
| AU2003203874A1 (en) | 2003-11-27 |
| CN1461702A (en) | 2003-12-17 |
| MXPA03004082A (en) | 2004-09-03 |
| IL155498A0 (en) | 2003-11-23 |
| PL360049A1 (en) | 2003-11-17 |
| DE10221141B4 (en) | 2005-07-14 |
| BR0301371B1 (en) | 2014-09-23 |
| DE50312511D1 (en) | 2010-04-29 |
| RU2245792C1 (en) | 2005-02-10 |
| CO5460268A1 (en) | 2004-11-30 |
| IL155498A (en) | 2006-08-20 |
| OA12410A (en) | 2006-04-18 |
| MY164489A (en) | 2017-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |