CN210590905U - Low-temperature-resistant high-oxygen-isolation composite film for packaging - Google Patents
Low-temperature-resistant high-oxygen-isolation composite film for packaging Download PDFInfo
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- CN210590905U CN210590905U CN201921652409.6U CN201921652409U CN210590905U CN 210590905 U CN210590905 U CN 210590905U CN 201921652409 U CN201921652409 U CN 201921652409U CN 210590905 U CN210590905 U CN 210590905U
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Abstract
The utility model provides a low temperature resistant high oxygen-proof composite film for packing, is including separating oxygen layer and low temperature resistant layer, separate the oxygen layer and include polypropylene layer, adhesive layer and ethylene-vinyl alcohol copolymer layer, the polypropylene layer is the inlayer, low temperature resistant layer includes polypropylene resin layer, adhesive layer and curtain coating polypropylene layer, polypropylene resin layer or curtain coating polypropylene layer with ethylene-vinyl alcohol copolymer layer contacts. The utility model discloses can satisfy low temperature resistant and high oxygen requirement that separates simultaneously, be particularly useful for the packing of cold drink product.
Description
Technical Field
The utility model relates to a low temperature resistant high oxygen-proof complex film for packing belongs to packing technical field.
Background
Frozen drinks are increasingly receiving consumer attention as a snack product, and new consumer concepts also pose new challenges to the cold drink market: the cold drink products also seek new breakthrough from the aspects of taste, appearance, product structure and even package, the traditional cold drink package is mostly made of polyethylene or polystyrene plastic, a layer of polyethylene film is arranged inside the traditional cold drink package, although the traditional cold drink package has certain barrier property, the traditional cold drink package is not completely airtight, the conventional barrier layer is also successfully used for producing the barrier film by the technologies of aluminizing the film and coating silicon oxide, but the barrier layer produced by the method has the defects of non-transparency and poor bending resistance. Moreover, low-temperature resistant packaging materials suitable for extreme low-temperature environments are rare; the development of diversification of cold drink products has raised higher requirements for cold drink packaging.
At present, packaging materials mainly with low temperature resistance or high temperature resistance are available in the market; however, packaging that combines low temperature resistance with high oxygen barrier properties is currently in the clear. Therefore, it is very important to develop a package with low temperature resistance and high oxygen barrier property to better meet the demand of cold drink products.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a low temperature resistant high oxygen-insulated complex film for packing that can be better satisfies cold drink product demand.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a low temperature resistant high oxygen-proof composite film for packing, is including separating oxygen layer and low temperature resistant layer, separate the oxygen layer and include polypropylene layer, adhesive layer and ethylene-vinyl alcohol copolymer layer, the polypropylene layer is the inlayer, low temperature resistant layer includes polypropylene resin layer, adhesive layer and curtain coating polypropylene layer, polypropylene resin layer or curtain coating polypropylene layer with ethylene-vinyl alcohol copolymer layer contacts.
In some embodiments, the packaging composite film further comprises a printed layer made of biaxially oriented polypropylene, the printed layer being in contact with the low temperature resistant layer.
In some embodiments, the packaging composite film further includes a protective layer made of polyethylene terephthalate for protecting the printed layer.
In some embodiments, the oxygen barrier layer has a thickness of 10-20 μm.
In some embodiments, the oxygen barrier layer has a thickness of 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, or 19 μm.
In some embodiments, the low temperature resistant layer has a thickness of 15-25 μm.
In some embodiments, the thickness of the low temperature resistant layer is 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, 23 μm, or 24 μm.
In some embodiments, the printed layer has a thickness of 10-15 μm.
In some embodiments, the thickness of the printed layer is 11 μm, 12 μm, 13 μm, or 14 μm.
In some embodiments, the protective layer has a thickness of 10-20 μm.
In some embodiments, the protective layer has a thickness of 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μ am, or 19 μm.
Compared with the prior packaging material, the utility model discloses a complex film for packing has following beneficial effect:
(1) the requirement of strict oxygen barrier property of the material is met by applying the composite material;
(2) the application of the polypropylene resin/adhesive/CPP film can meet the requirement of low temperature resistance of the material of minus 46 ℃, simultaneously strengthen the barrier property, ensure that the packaging film has certain stiffness and increase the texture of the film.
(3) The printing layer can better print patterns, and meanwhile, the PET film can effectively protect the printing layer.
Drawings
Fig. 1 is a schematic cross-sectional view of a composite film for packaging according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a composite film for packaging according to another embodiment of the present invention.
Description of reference numerals:
1-an oxygen barrier layer; 11-PP layer; 12-an adhesive layer; 13-EVOH layer;
2-a low temperature resistant layer; a 21-polypropylene resin layer; 22-an adhesive layer; 23-a CPP layer;
3-printing layer; 4-PET layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a low temperature resistant height separates oxygen complex film for packing forms by the multilayer film is compound, as shown in figure 1, including separating oxygen layer 1, low temperature resistant layer 2, printing layer 3 and protective layer 4.
Wherein the oxygen barrier layer 1 comprises a polypropylene (PP) layer 11, an adhesive layer 12 and an ethylene-vinyl alcohol copolymer (EVOH) layer 13, and has excellent gas barrier properties for effectively blocking O2、CO2And other gases, and has good transparency, glossiness, mechanical strength and corrosion resistance, thus being a high-performance barrier material.
The PP layer 11 is located at the innermost layer, in direct contact with the product. The thickness of the oxygen barrier layer 1 may be 10-20 μm, for example 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm or 19 μm.
The low temperature resistant layer 2 comprises a polypropylene resin layer 21, an adhesive layer 22 and a casting polypropylene (CPP) layer 23, and the low temperature resistant layer 2 can enhance the barrier property and simultaneously enable the composite film for packaging to have certain stiffness and increase the texture of the film. The thickness of the low temperature resistant layer 2 may be 15-25 μm, for example 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, 23 μm or 24 μm.
As shown in fig. 1, in some embodiments, the polypropylene resin layer 21 is in contact with the oxygen barrier layer 1, while in other embodiments, the cast polypropylene (CPP) layer 23 is in contact with the oxygen barrier layer 1, as shown in fig. 2.
The print layer 3 is preferably a biaxially oriented polypropylene (OPP) film, and the print layer 3 has a thickness of 10-15 μm, for example 11 μm, 12 μm, 13 μm, 14 μm.
The protective layer 4 is a polyethylene terephthalate (PET) film, which can effectively protect the printing layer and ensure long-term aesthetic property. This layer is the outermost layer and has a thickness of 10-20 μm, for example 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm or 19 μm.
The packaging material can be made into cylindrical or cuboid packaging bags or boxes, but is not limited to the shape, and any packaging material made of the structure of the utility model belongs to the range related to the utility model.
The utility model discloses a low temperature resistant height separates oxygen complex film for packing and by wrapping bag or packing carton etc. that it made can satisfy strict separation oxygen and low temperature resistant requirement simultaneously, be particularly useful for the packing of cold drink product.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The composite film for packaging comprises an oxygen isolation layer and a low-temperature resistant layer, and is characterized in that the oxygen isolation layer comprises a polypropylene layer, an adhesive layer and an ethylene-vinyl alcohol copolymer layer, the polypropylene layer is the innermost layer, the low-temperature resistant layer comprises a polypropylene resin layer, an adhesive layer and a cast polypropylene layer, and the polypropylene resin layer or the cast polypropylene layer is in contact with the ethylene-vinyl alcohol copolymer layer.
2. The composite film for packaging according to claim 1, further comprising a printed layer made of biaxially oriented polypropylene, the printed layer being in contact with the low temperature resistant layer.
3. The packaging composite film according to claim 2, further comprising a protective layer made of polyethylene terephthalate for protecting the printing layer.
4. A composite film for packaging as claimed in any one of claims 1 to 3, wherein the oxygen barrier layer has a thickness of 10 to 20 μm and the low temperature resistant layer has a thickness of 15 to 25 μm.
5. The composite film for packaging according to claim 4, wherein the thickness of the oxygen-barrier layer is 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm, 18 μm, or 19 μm.
6. The composite film for packaging according to claim 4, wherein the thickness of the low temperature resistant layer is 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, 23 μm, or 24 μm.
7. The composite film for packaging according to claim 2, wherein the thickness of the printing layer is 10 to 15 μm.
8. The composite film for packaging according to claim 7, wherein the thickness of the printing layer is 11 μm, 12 μm, 13 μm, or 14 μm.
9. A composite film for packaging according to claim 3, wherein the protective layer has a thickness of 10-20 μm.
10. The composite film for packaging according to claim 9, wherein the protective layer and the oxygen barrier layer have a thickness of 11 μ ι η, 12 μ ι η, 13 μ ι η, 14 μ ι η, 15 μ ι η, 16 μ ι η, 17 μ ι η, 18 μ ι η, or 19 μ ι η.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652409.6U CN210590905U (en) | 2019-09-27 | 2019-09-27 | Low-temperature-resistant high-oxygen-isolation composite film for packaging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652409.6U CN210590905U (en) | 2019-09-27 | 2019-09-27 | Low-temperature-resistant high-oxygen-isolation composite film for packaging |
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| CN210590905U true CN210590905U (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590341A (en) * | 2020-12-14 | 2021-04-02 | 江阴升辉包装材料有限公司 | Recyclable high-barrier composite sheet with high composite strength and preparation method thereof |
-
2019
- 2019-09-27 CN CN201921652409.6U patent/CN210590905U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590341A (en) * | 2020-12-14 | 2021-04-02 | 江阴升辉包装材料有限公司 | Recyclable high-barrier composite sheet with high composite strength and preparation method thereof |
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