CN203293596U - Liquid paper container - Google Patents
Liquid paper container Download PDFInfo
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- CN203293596U CN203293596U CN2013200713550U CN201320071355U CN203293596U CN 203293596 U CN203293596 U CN 203293596U CN 2013200713550 U CN2013200713550 U CN 2013200713550U CN 201320071355 U CN201320071355 U CN 201320071355U CN 203293596 U CN203293596 U CN 203293596U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
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Abstract
The utility model provides a liquid paper container and in particular relates to a recyclable liquid paper container with excellent gas barrier property and moulding processability. The liquid paper container is formed by packaging multiple layers at least comprising one paper layer and one ethylene-vinyl alcohol polymer layer. The liquid paper container is excellent in gas barrier property and moulding processability, recyclable and especially applicable to food packaging.
Description
Technical field
The utility model relates to a kind of liquid paper container, relates in particular to a kind of gas barrier property barrier of the gases such as oxygen, carbon dioxide gas and odour component (namely for), fragrance protectiveness, excellence, processing and forming excellence, callable liquid paper container.
Background technology
Preserving the paper container that the liquid foods such as milk and fruit juice are used, is generally to form stock by paper, then outside with the inside on the synthetic resin layer of compound low density polyethylene (LDPE) one class.
Liquid paper container for for packaged food and various article, requires gas barrier property, particularly oxygen barrier more.This is in order to prevent from infiltrating because of oxygen the impact of oxidative degradation packing content thing etc.For this reason, in the situation that need the commodity of long preservation and fearness content oxidation deterioration, on above-mentioned paper container, aluminium foil layer is carried out compound.
, with respect to the lumber fibre that can reclaim, recycle the paper container, with the paper container of aluminium foil layer, be unfavorable for reclaiming, recycling.
The utility model content
The utility model proposes in order to address the above problem, and its purpose is to provide a kind of gas barrier property excellence, processing and forming excellence, callable liquid paper container.
For realizing this purpose, liquid paper container of the present utility model, be comprised of the multi-layer packaging that has at least one deck ply of paper 4 and one deck evoh layer (evoh layer) 3.
Here, preferably the double-layer structure of multi-layer packaging comprises one deck ply of paper 4 and one deck evoh layer 3.
Further, described one deck ply of paper 4 is the skin of this multi-layer packaging, and described one deck evoh layer 3 is the internal layer of this multi-layer packaging.
Wherein, the thickness of evoh layer 3 is 2-30 μ m, and the thickness of described ply of paper 4 is 50-500 μ m.
Here, preferably multi-layer packaging forms by three layers, comprises one deck ply of paper 4, one deck adhering resin layer 2 and one deck evoh layer 3.
Further, described one deck ply of paper 4 is the outermost layer of this multi-layer packaging, and described one deck evoh layer 3 is the innermost layer of this multi-layer packaging; Described adhering resin layer 2 is configured between described one deck ply of paper 4 and described one deck evoh layer 3.
Wherein, the thickness of described evoh layer 3 is 2-30 μ m, and the thickness of described ply of paper 4 is 50-500 μ m, and the thickness of described adhering resin layer 2 is 2-30 μ m.
Perhaps, preferably multi-layer packaging forms by three layers, comprises one deck ply of paper 4, one deck PE layer 1 and one deck evoh layer 3.
Further, described one deck PE layer 1 is the outermost layer of described multi-layer packaging, and described one deck evoh layer 3 is the innermost layer of described multi-layer packaging; Described ply of paper 4 is configured between described one deck PE layer 1 and described one deck evoh layer 3.
Wherein, the thickness of described evoh layer 3 is 2-30 μ m, and the thickness of described ply of paper 4 is 50-500 μ m, and the thickness of described PE layer 1 is 5-80 μ m.Here, preferably multi-layer packaging forms by six layers, comprises two-layer PE layer 1, one deck ply of paper 4, two layers of adhering resin 2 and one deck evoh layer 3.
Further, described two-layer PE layer is the innermost layer PE layer 1a and the inboard PE layer 1c that is positioned at described ply of paper inboard that is positioned at the innermost layer of described multi-layer packaging; Between described one deck evoh layer 3 and described innermost layer PE layer 1a, dispose one deck adhering resin layer 2a; Between described one deck evoh layer 3 and described inboard PE layer 1c, dispose another layer adhering resin layer 2b; Described ply of paper 4 is configured in the outermost layer of described multi-layer packaging.
Wherein, the thickness of described evoh layer 3 is 2-30 μ m, and the thickness of described ply of paper 4 is 50-500 μ m, and the thickness of described innermost layer PE layer 1a is 5-100 μ m, and the thickness of described inboard PE layer 1c is 2-30 μ m, and the thickness of described adhering resin layer 2 is 2-30 μ m.
Here, preferably in liquid paper container of the present utility model, multi-layer packaging forms by seven layers, comprises three-layer polyethylene layer (PE layer) 1, one deck ply of paper 4, two layers of adhering resin 2 and one deck evoh layer 3.
Further, described three layers of PE layer are the innermost layer PE layer 1a that is positioned at the innermost layer of described multi-layer packaging, the inboard PE layer 1c that is positioned at the outermost outermost layer PE layer 1b of described multi-layer packaging and is positioned at described ply of paper inboard.
Further, between described one deck evoh layer 3 and described innermost layer PE layer 1a, dispose one deck adhering resin layer 2a; Between described one deck evoh layer 3 and described inboard PE layer 1c, dispose another layer adhering resin layer 2b; Described ply of paper 4 is configured between described inboard PE layer 1c and described outermost layer PE layer 1b.
Wherein, the thickness of described evoh layer 3 is 2-30 μ m, the thickness of described ply of paper 4 is 50-500 μ m, the thickness of described innermost layer PE layer 1a is 5-100 μ m, the thickness of described outermost layer PE layer 1b is 5-80 μ m, the thickness of described inboard PE layer 1c is 2-30 μ m, and the thickness of described adhering resin layer 2 is 2-30 μ m.Liquid paper container gas barrier property of the present utility model is excellent, the processing and forming excellence, and is recyclable, and optimum is for packing foods.
The accompanying drawing explanation
Fig. 1 is the liquid paper container of an embodiment of the utility model.
Fig. 2 is the cross-sectional view of the liquid paper container of Fig. 1 along A-A.
Fig. 3 is the cross-sectional view of the liquid paper container of another embodiment of the utility model along A-A.
Fig. 4 is the cross-sectional view of the liquid paper container of another embodiment of the utility model along A-A.
Fig. 5 is the cross-sectional view of the liquid paper container of another embodiment of the utility model along A-A.
Fig. 6 is that the liquid paper container of Fig. 1 of another embodiment of the utility model is along the cross-sectional view of A-A.In figure, 1 is the PE layer, and 2 is the adhering resin layer, and 3 is evoh layer, and 4 is ply of paper, and 1a is innermost layer PE layer, and 1b is outermost layer PE layer, and 1c is inboard PE layer.
The specific embodiment
Followingly will describe liquid paper container of the present utility model in detail.
As the polyethylene that uses in the utility model (PE), can enumerate high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE) (LDPE), linear low density polyethylene (LLDPE) (LLDPE) etc.The water-tolerant of PE, but heat resistance is not high, and hot strength is lower, but good impact resistance has good chemical stability, and good processability.
As the ethylene-vinyl alcohol copolymer that uses in the utility model (EVOH), it is the useful macromolecular material that oxygen-barrier property, oil resistivity, non-charging property, mechanical strength etc. are excellent.
As in the utility model, using ply of paper, be when making container, to remain shape ply of paper used.Except as the necessary general aspects of rigid container, while being used as the container for drink use, also must the special characteristics such as resistance to water, oil resistivity to be arranged.Usually can use white board, horse traction paperboard, milk carton board body paper, cupstock, ivory etc.
The adhering resin that uses in the utility model, so long as the resin of each layers cementing can be got final product, particular restriction, preferably do not adopt carboxyl acid modified vistanex etc.Carboxyl acid modified vistanex is to use unsaturated carboxylic acid or its acid anhydride (maleic anhydride etc.) olefin polymer or the copolymer as copolymer composition; Or make the graft copolymer of unsaturated carboxylic acid or its acid anhydride grafting gained on olefin polymer or copolymer.
Liquid paper container of the present utility model, be comprised of the multi-layer packaging that has at least one deck ply of paper and one deck evoh layer.
Preferably, in liquid paper container of the present utility model, multi-layer packaging consists of two-layer, comprises one deck ply of paper and one deck evoh layer.Evoh layer, as barrier layer, can effectively intercept gas, especially oxygen and carbon dioxide.The liquid paper container that contains the EVOH barrier layer is fully can recycling.
Further, one deck ply of paper is the skin of this multi-layer packaging, and one deck evoh layer is the internal layer of this multi-layer packaging.
Wherein, the thickness of evoh layer is 2-30 μ m, and the thickness of ply of paper is 50-500 μ m; Preferably, the thickness of evoh layer is 5-20 μ m, and the thickness of ply of paper is 50-500 μ m.Preferably, in liquid paper container of the present utility model, multi-layer packaging forms by three layers, comprises one deck ply of paper, one deck adhering resin layer and one deck evoh layer.The use of adhering resin layer can improve the mechanical strength of liquid paper container.
Further, one deck ply of paper is the outermost layer of this multi-layer packaging, and one deck evoh layer is the innermost layer of this multi-layer packaging; Between one deck adhering resin layer configuration one deck ply of paper and one deck evoh layer.
Wherein, the thickness of evoh layer is 2-30 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of adhering resin layer is 2-30 μ m; Preferably, the thickness of evoh layer is 5-20 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of adhering resin layer is 5-10 μ m.
Perhaps, preferably multi-layer packaging forms by three layers, comprises one deck ply of paper, one deck PE layer and one deck evoh layer.
Further, one deck PE layer is the outermost layer of described multi-layer packaging, and one deck evoh layer is the innermost layer of described multi-layer packaging; Ply of paper is configured between described one deck PE layer and described one deck evoh layer.
Wherein, the thickness of evoh layer is 2-30 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of PE layer is 5-80 μ m; Preferably, the thickness of evoh layer is 5-20 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of PE layer is 10-50 μ m.
Preferably, in liquid paper container of the present utility model, multi-layer packaging forms by six layers, comprises two-layer PE layer, one deck ply of paper, two layers of adhering resin and one deck evoh layer.
Further, two-layer PE layer is the innermost layer PE layer and the inboard PE layer that is positioned at the ply of paper inboard that is positioned at the innermost layer of described multi-layer packaging; Between one deck evoh layer and innermost layer PE layer, dispose one deck adhering resin layer; Between one deck evoh layer and inboard PE layer, dispose another layer adhering resin layer; Ply of paper is configured in the outermost layer of multi-layer packaging.
Wherein, the thickness of evoh layer is 2-30 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of innermost layer PE layer is 5-100 μ m, and the thickness of inboard PE layer is 2-30 μ m, and the thickness of adhering resin layer is 2-30 μ m; Preferably, the thickness of evoh layer is 5-20 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of innermost layer PE layer is 10-50 μ m, and the thickness of inboard PE layer is 5-30 μ m, and the thickness of adhering resin layer is 5-10 μ m.Preferably, in liquid paper container of the present utility model, multi-layer packaging forms by seven layers, comprises three layers of PE layer, one deck ply of paper, two layers of adhering resin and one deck evoh layer.
Further, three layers of PE layer are the innermost layer PE layer that is positioned at the innermost layer of this multi-layer packaging, the inboard PE layer that is positioned at the outermost outermost layer PE layer of this multi-layer packaging and is positioned at the ply of paper inboard.
Further, between one deck evoh layer and innermost layer PE layer, dispose one deck adhering resin layer; Between one deck evoh layer and inboard PE layer, dispose another layer adhering resin layer; Ply of paper is configured between inboard PE layer and outermost layer PE layer.The PE layer that is configured in the both sides of ply of paper and evoh layer can play the effect of protective layer.
In the method that forms multi-layer packaging, can adopt well-known dry type composite algorithm, wet type composite algorithm, hot melt composite algorithm etc. that required each laminatings such as pre-prepd PE layer, evoh layer, adhering resin layer, ply of paper are closed, or by the extrusion coated method of well-known T-shaped die head etc., on ply of paper, form PE layer, adhering resin layer or evoh layer etc., form again other layers.
Wherein, the thickness of evoh layer is 2-30 μ m, and the thickness of ply of paper is 50-500 μ m, and the thickness of innermost layer PE layer is 5-100 μ m, and the thickness of outermost layer PE layer is 5-80 μ m, and the thickness of inboard PE layer is 2-30 μ m, and the thickness of adhering resin layer is 2-30 μ m; Preferably, the thickness of evoh layer is 5-20 μ m, and the thickness of ply of paper is 50-500 μ m, the thickness of innermost layer PE layer is 10-50 μ m, the thickness of outermost layer PE layer is 10-30 μ m, and the thickness of inboard PE layer is 5-30 μ m, and the thickness of described adhering resin layer is 5-15 μ m.
The kind of liquid paper container of the present utility model does not have special restriction, can exemplify brick type, rectangular build, pyramid type paper container, cup type paper container, screw type paper container, be set into the paper container of pattern etc.
The liquid paper container can be for packaged food.For such purposes, often require to prevent the rotten of content article.And, in the situation for packing content article of easy oxidation deterioration due to the oxygen effect, require packing to have the extremely barrier properties for gases of height, and meet such requirement, be very difficult.
Liquid paper container of the present utility model can keep the performance of content quality extremely excellent, so optimum is for packaged food.
Below in conjunction with accompanying drawing, illustrate the example of liquid paper container of the present utility model.
Fig. 1-6 illustrate the preferred embodiment of liquid paper container of the present utility model.
Fig. 1 illustrates the example of the liquid paper container of one of the utility model.
Fig. 2 illustrates the cross-sectional view of Fig. 1 liquid paper container along A-A.In Fig. 2, liquid paper container of the present utility model is comprised of multi-layer packaging, and this multi-layer packaging has one deck ply of paper and one deck evoh layer, by the outermost layer of liquid paper container, to innermost layer, is followed successively by ply of paper 4 and evoh layer 3.Wherein, the thickness of evoh layer 3 is 2-30 μ m, and the thickness of described ply of paper 4 is 50-500 μ m.
In Fig. 3, liquid paper container of the present utility model is comprised of multi-layer packaging, this multi-layer packaging has one deck ply of paper, one deck adhering resin layer and one deck evoh layer, by the outermost layer of liquid paper container, to innermost layer, is followed successively by ply of paper 4, adhering resin layer 2 and evoh layer 3.Wherein, the thickness of evoh layer 3 is 2-30 μ m, and the thickness of ply of paper 4 is 50-500 μ m, and the thickness of adhering resin layer 2 is 2-30 μ m.
In Fig. 4, liquid paper container of the present utility model is comprised of multi-layer packaging, and this multi-layer packaging has seven layers, comprises three layers of PE layer 1, one deck ply of paper 4, two layers of adhering resin layer 2 and one deck evoh layer 3.By the outermost layer of liquid paper container, to innermost layer, be followed successively by outermost layer PE layer 1b, ply of paper 4, inboard PE layer 1c, adhering resin 2b, evoh layer 3, adhering resin 2a and innermost layer PE layer 1a.Wherein, the thickness of evoh layer 3 is 2-30 μ m, and the thickness of ply of paper 4 is 50-500 μ m, the thickness of innermost layer PE layer 1a is 5-100 μ m, the thickness of outermost layer PE layer 1b is 5-80 μ m, and the thickness of inboard PE layer 1c is 2-30 μ m, and the thickness of adhering resin layer is 2-30 μ m.
In Fig. 5, liquid paper container of the present utility model is comprised of multi-layer packaging, and this multi-layer packaging has three layers, comprises one deck ply of paper, one deck PE layer and one deck evoh layer, by the outermost layer of liquid paper container, to innermost layer, is followed successively by PE layer 1, ply of paper 4 and evoh layer 3.Wherein, the thickness of evoh layer 3 is 2-30 μ m, and the thickness of ply of paper 4 is 50-500 μ m, and the thickness of PE layer 1 is 5-80 μ m.
In Fig. 6, liquid paper container of the present utility model is comprised of multi-layer packaging, and this multi-layer packaging has six layers, comprises two-layer PE layer 1, one deck ply of paper 4, two layers of adhering resin layer 2 and one deck evoh layer 3.By the outermost layer of liquid paper container, to innermost layer, be followed successively by ply of paper 4, inboard PE layer 1c, adhering resin 2b, evoh layer 3, adhering resin 2a and innermost layer PE layer 1a.Wherein, the thickness of evoh layer 3 is 2-30 μ m, and the thickness of ply of paper 4 is 50-500 μ m, and the thickness of innermost layer PE layer 1a is 5-100 μ m, and the thickness of inboard PE layer 1c is 2-30 μ m, and the thickness of adhering resin layer is 2-30 μ m.
Above explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; in the situation that do not break away from the spirit and scope that claims limit; can make corresponding many modifications, variation or equivalent process, but all will fall in protection domain of the present utility model.
Claims (16)
1. a liquid paper container, is characterized in that, the multi-layer packaging that has at least one deck ply of paper (4) and one deck evoh layer (3), consists of.
2. liquid paper container according to claim 1, is characterized in that, described multi-layer packaging consists of two-layer, comprises one deck ply of paper (4) and one deck evoh layer (3).
3. liquid paper container according to claim 2, is characterized in that, described one deck ply of paper (4) is the skin of described multi-layer packaging, and described one deck evoh layer (3) is the internal layer of described multi-layer packaging.
4. liquid paper container according to claim 3, is characterized in that, the thickness of described evoh layer (3) is 2-30 μ m, and the thickness of described ply of paper (4) is 50-500 μ m.
5. liquid paper container according to claim 1, is characterized in that, described multi-layer packaging forms by three layers, comprises one deck ply of paper (4), one deck adhering resin layer (2) and one deck evoh layer (3).
6. liquid paper container according to claim 5, is characterized in that, described one deck ply of paper (4) is the outermost layer of described multi-layer packaging, and described one deck evoh layer (3) is the innermost layer of described multi-layer packaging; Described adhering resin layer (2) is configured between described one deck ply of paper (4) and described one deck evoh layer (3).
7. liquid paper container according to claim 6, is characterized in that, the thickness of described evoh layer (3) is 2-30 μ m, and the thickness of described ply of paper (4) is 50-500 μ m, and the thickness of described adhering resin layer (2) is 2-30 μ m.
8. liquid paper container according to claim 1, is characterized in that, described multi-layer packaging forms by seven layers, comprises three-layer polyethylene layer (1), one deck ply of paper (4), two layers of adhering resin (2) and one deck evoh layer (3).
9. liquid paper container according to claim 8, it is characterized in that, described three-layer polyethylene layer is the innermost layer polyethylene layer (1a) that is positioned at the innermost layer of described multi-layer packaging, the inboard polyethylene layer (1c) that is positioned at the outermost outermost layer polyethylene layer (1b) of described multi-layer packaging and is positioned at described ply of paper inboard; Between described one deck evoh layer (3) and described innermost layer polyethylene layer (1a), dispose one deck adhering resin layer (2a); Between described one deck evoh layer (3) and described inboard polyethylene layer (1c), dispose another layer adhering resin layer (2b); Described ply of paper (4) is configured between described inboard polyethylene layer (1c) and described outermost layer polyethylene layer (1c).
10. liquid paper container according to claim 9, it is characterized in that, the thickness of described evoh layer (3) is 2-30 μ m, the thickness of described ply of paper (4) is 50-500 μ m, the thickness of described innermost layer polyethylene layer (1a) is 5-100 μ m, the thickness of described outermost layer polyethylene layer (1b) is 5-80 μ m, and the thickness of described inboard polyethylene layer (1c) is 2-30 μ m, and the thickness of described adhering resin layer (2) is 2-30 μ m.
11. liquid paper container according to claim 1, is characterized in that, described multi-layer packaging forms by three layers, comprises one deck ply of paper (4), one polyethylene layer (1) and one deck evoh layer (3).
12. liquid paper container according to claim 11, is characterized in that, described one polyethylene layer (1) is the outermost layer of described multi-layer packaging, and described one deck evoh layer (3) is the innermost layer of described multi-layer packaging; Described ply of paper (4) is configured between described one polyethylene layer (1) and described one deck evoh layer (3).
13. liquid paper container according to claim 12, is characterized in that, the thickness of described evoh layer (3) is 2-30 μ m, and the thickness of described ply of paper (4) is 50-500 μ m, and the thickness of described polyethylene layer (1) is 5-80 μ m.
14. liquid paper container according to claim 1, is characterized in that, described multi-layer packaging forms by six layers, comprises two layers of polyethylene layer (1), one deck ply of paper (4), two layers of adhering resin (2) and one deck evoh layer (3).
15. liquid paper container according to claim 14, is characterized in that, described two layers of polyethylene layer be positioned at described multi-layer packaging innermost layer innermost layer polyethylene layer (1a) and be positioned at the inboard polyethylene layer (1c) of described ply of paper inboard; Between described one deck evoh layer (3) and described innermost layer polyethylene layer (1a), dispose one deck adhering resin layer (2a); Between described one deck evoh layer (3) and described inboard polyethylene layer (1c), dispose another layer adhering resin layer (2b); Described ply of paper (4) is configured in the outermost layer of described multi-layer packaging.
16. liquid paper container according to claim 15, it is characterized in that, the thickness of described evoh layer (3) is 2-30 μ m, the thickness of described ply of paper (4) is 50-500 μ m, the thickness of described innermost layer polyethylene layer (1a) is 5-100 μ m, the thickness of described inboard polyethylene layer (1c) is 2-30 μ m, and the thickness of described adhering resin layer (2) is 2-30 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200713550U CN203293596U (en) | 2013-02-07 | 2013-02-07 | Liquid paper container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200713550U CN203293596U (en) | 2013-02-07 | 2013-02-07 | Liquid paper container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203293596U true CN203293596U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200713550U Expired - Lifetime CN203293596U (en) | 2013-02-07 | 2013-02-07 | Liquid paper container |
Country Status (1)
| Country | Link |
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| CN (1) | CN203293596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056702A1 (en) * | 2018-09-21 | 2020-03-26 | 张开有 | Paper container package and manufacturing method therefor |
-
2013
- 2013-02-07 CN CN2013200713550U patent/CN203293596U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056702A1 (en) * | 2018-09-21 | 2020-03-26 | 张开有 | Paper container package and manufacturing method therefor |
| CN112739625A (en) * | 2018-09-21 | 2021-04-30 | 张开有 | Paper container package and method for manufacturing the same |
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Granted publication date: 20131120 |