CN203888322U - High-barrier sealing film - Google Patents
High-barrier sealing film Download PDFInfo
- Publication number
- CN203888322U CN203888322U CN201420334522.0U CN201420334522U CN203888322U CN 203888322 U CN203888322 U CN 203888322U CN 201420334522 U CN201420334522 U CN 201420334522U CN 203888322 U CN203888322 U CN 203888322U
- Authority
- CN
- China
- Prior art keywords
- layer
- barrier
- barrier layer
- compound
- seal film
- 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.)
- Expired - Fee Related
Links
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a high-barrier sealing film. The high-barrier sealing film comprises a protective layer and a composite barrier layer which are overlapped one above the other; the protective layer is a polyester film layer; the composite barrier layer is a multi-layer coextruded composite film and comprises an ethylene-vinyl alcohol copolymer layer serving as a base layer and a modified low-density polyethylene layer serving as a bottom layer; the protective layer is combined with the upper surface of the composite barrier layer in a hot pressing manner by use of an adhesive, and thus the high-barrier sealing film is formed; the high-barrier sealing film thermally seals the mouth of a container by use of the bottom layer of the composite barrier layer. The high-barrier sealing film is high in barrier property by use of the composite barrier layer taking the ethylene-vinyl alcohol copolymer layer as the base layer; the composite bonding strength inside the composite barrier layer is high, layering is avoided and no plastic film is left on the mouth of the container.
Description
Technical field
The utility model relates to a kind of packaging film, especially a kind of high barrier seal film.
Background technology
The sealed membrane of the existing mouth of pipe, rim of a cup or bottleneck adopts paper film or a kind of material single-layer plastic film mostly, although there is the feature that the cost of material is low and be easy to tear, but its barrier is poor, be only applicable to the rim of a cup of short article such as food or fresh drink etc. of shelf-life or the sealing of bottleneck; And the effect of heat insulation of paper film is poor.
But most of article shelf-life or storage life that especially medicine or medicine equipment etc. need to be longer need good barrier.In order to guarantee the quality for a long time or stored article, existing employing Al-plastic sealing film, utilize the aluminium foil with good air or water vapor barrier property as barrier layer, aluminium foil needs to carry out binding agent or the film combination process of twice between plastic foil just can be shaped to Al-plastic sealing film.Although the barrier of Al-plastic sealing film is better, but because the poor adhesion between aluminium foil and plastic foil is both combined strength binations low (generally below 3N), make the easy layering of plastic foil, while just there will be the Al-plastic sealing film that removes the mouth of pipe or bottleneck, tear and the plastic foil that contacts with bottleneck or the mouth of pipe still remains on the mouth of pipe or bottleneck as the aluminium foil of barrier layer.In addition, Al-plastic sealing film can not be applied to forbid containing metal composition medical product and can not containing metal composition the container of food.Secondly, the processing technology complexity of Al-plastic sealing film.Add that Al-plastic sealing film uses non-renewable metallic aluminium, resource cost is large, and cost is high; And the difficult decomposition of Al-plastic sealing film, be difficult to recycling use,, with economizing on resources that society is advocated, the theme of environmental protection is not inconsistent yet.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of good barrier property, avoids layering, easily openable and the mouth of pipe or bottleneck noresidue, not containing or containing metal composition hardly, and operation is convenient to simply again the high barrier seal film of recycling.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of high barrier seal film, comprise protective layer setting up and down and compound barrier layer, described protective layer is laminated polyester film, described compound barrier layer is multi-layer co-extruded composite membrane, comprises as the evoh layer of basic unit with as the modified low-density polyethylene layer of bottom; Described protective layer is by the high barrier seal film described in the compound formation of upper surface hot pressing of adhesive and described compound barrier layer, and described high barrier seal film seals the oral area at container by the bottom of compound barrier layer.Preferably, described adhesive is ethylene acrylic acid co polymer adhesive.
As to improvement of the present utility model, between described protective layer and compound barrier layer, be provided with polyester aluminium plating membrane, described polyester aluminium plating membrane is bonding with described protective layer and compound barrier layer respectively by adhesive.Preferably, described adhesive is ethylene acrylic acid co polymer adhesive.Between described protective layer and compound barrier layer, polyester aluminium plating membrane is set, makes sealed membrane on the basis with high barrier, extend guaranteeing the quality or the storage time of article.
As preferred embodiment of the present utility model, described compound barrier layer comprises and is symmetricly set on from inside to outside the upper and lower tack coat of described basic unit and setting layer; Described adhesive linkage is ethylene acrylic acid co polymer layer, and described setting layer is high-density polyethylene layer.
As preferred embodiment of the present utility model; described compound barrier layer also comprises the protective layer that is separately positioned on second adhesive linkage in two setting layer outsides and is located at the compound barrier layer in one of them the second adhesive linkage outside; and the bottom that the outside of another the second adhesive linkage is described compound barrier layer; described the second tack coat is ethylene acrylic acid co polymer layer, and described protective layer is low density polyethylene layer.
As preferred embodiment of the present utility model, described high barrier seal film is transparent sealed membrane.
With respect to prior art, the beneficial effects of the utility model are: 1. by using the compound barrier layer using evoh layer as basic unit, make barrier high; 2. because compound barrier layer is multi-layer co-extruded composite membrane, compound sticking intensity between plural layers is far away higher than the adhesive strength of passing through binding agent or film combination process between aluminium foil and plastic membranous layer, therefore there will not be layering, solve the defect of the easy layering of Al-plastic sealing film, also, while just there will not be the Al-plastic sealing film that removes the mouth of pipe or bottleneck, torn and the plastic foil that contacts with bottleneck or the mouth of pipe still remains in the problem on the mouth of pipe or bottleneck as the aluminium foil of barrier layer; 3. because compound sealed membrane does not contain or contain hardly metal ingredient, the container closure that goes for all products especially has the medical product of requirement or the container closure of food to containing metal composition; 4. owing to being overall plastic film or only containing the extremely metallo-plastic film of trace, do not need to use non-renewable metal aluminum foil or need hardly to use metal aluminum foil as barrier layer, having lowered material cost; And easily decompose and recyclable reusing; In addition compound barrier layer is multi-layer co-extruded moulding, has reduced combination process with respect to Al-plastic sealing film, has reduced production hour, has reduced production cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model high barrier seal film embodiment 1;
Fig. 2 is the structural representation of the utility model high barrier seal film embodiment 2;
Fig. 3 is the enlarged diagram of compound barrier layer in the utility model high barrier seal film embodiment 1;
Fig. 4 is the enlarged diagram of compound barrier layer in the utility model high barrier seal film embodiment 2.
In figure, 1 is protective layer; 2 is compound barrier layer;
21 is bottom; 22 is barrier layer;
23 is adhesive linkage; 24 is setting layer;
25 is the second adhesive linkage; 26 is the protective layer of compound barrier layer;
3 is adhesive; 4 is polyester aluminium plating membrane.
Detailed description of the invention
Below in conjunction with brief description of the drawings preferred embodiments of the present utility model.
The utility model embodiment 1, refer to shown in Fig. 1 and Fig. 3, the utility model high barrier seal film comprises protective layer setting up and down 1 and compound barrier layer 2, described protective layer 1 is laminated polyester film (pet layer), described compound barrier layer 2 is multi-layer co-extruded composite membrane, comprises as the evoh layer (evoh layer) of basic unit 22 with as the modified low-density polyethylene layer (modification LDPE layer) of bottom 21; Described protective layer 1 is by the high barrier seal film described in the compound formation of upper surface hot pressing of adhesive 3 and described compound barrier layer 2, and described high barrier seal film seals the oral area at container by the bottom 21 of compound barrier layer 2.
Specifically as shown in Figure 3, compound barrier layer 2 comprises the barrier layer 22 as basic unit, be symmetricly set on from inside to outside described basic unit upper and lower adhesive linkage 23 and setting layer 24, described adhesive linkage 23 is ethylene acrylic acid co polymer layer (EAA layer), and described setting layer 24 is high-density polyethylene layer (HDPE layer); Wherein, setting layer 24, adhesive linkage 23, barrier layer 22, adhesive linkage 23, setting layer 24 and bottom 21 are multi-layer co-extruded is complex as compound barrier layer 2.
Further, as shown in Figure 4, compound barrier layer 2 comprises the barrier layer 22 as basic unit, is symmetricly set on from inside to outside the protective layer 26 of the upper and lower adhesive linkage of described basic unit 23, setting layer 24, the second adhesive linkage 25 and compound barrier layer; Described the second adhesive linkage 25 is ethylene acrylic acid co polymer layer (EAA layer); the protective layer 26 of described compound barrier layer is low density polyethylene layer (LDPE layer); wherein, the protective layer 26 of compound barrier layer, the second adhesive linkage 25, setting layer 24, adhesive linkage 23, barrier layer 22, adhesive linkage 23, setting layer 24, the second adhesive linkage 25 and bottom 21 are arranged the multi-layer co-extruded compound barrier layer 2 that is complex as successively from top to bottom.
The utility model, by using the compound barrier layer using evoh layer as basic unit, makes barrier high; Secondly, because compound barrier layer is multi-layer co-extruded composite membrane, compound sticking intensity between plural layers is far away higher than the adhesive strength of passing through binding agent or film combination process between aluminium foil and plastic membranous layer, therefore there will not be layering, solve the defect of the easy layering of Al-plastic sealing film, also, while just there will not be the Al-plastic sealing film that removes the mouth of pipe or bottleneck, torn and the plastic foil that contacts with bottleneck or the mouth of pipe still remains in the problem on the mouth of pipe or bottleneck as the aluminium foil of barrier layer; The 3rd, because compound sealed membrane does not contain or contains hardly metal ingredient, the container closure that goes for all products especially has the medical product of requirement or the container closure of food to containing metal composition; The 4th, owing to being overall plastic film or only containing the extremely metallo-plastic film of trace, do not need to use non-renewable metal aluminum foil or need hardly to use metal aluminum foil as barrier layer, lower material cost; And easily decompose and recyclable reusing; In addition compound barrier layer is multi-layer co-extruded moulding, has reduced combination process with respect to Al-plastic sealing film, has reduced production hour, has reduced production cost.
Preferably, in order to see article in container under the condition of not opening sealed membrane, or article in Division identification sealing container, the utility model high barrier seal film is transparent sealed membrane.
The utility model embodiment 2; as shown in Figure 2; on the basis of embodiment 1, between described protective layer and compound barrier layer, increase polyester aluminium plating membrane 4; described polyester aluminium plating membrane 4 is bonding with described protective layer 1 and compound barrier layer 2 respectively by adhesive, realizes on the basis of high barrier extend guaranteeing the quality or the storage time of article by increasing polyester aluminium plating membrane.
Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.
Claims (5)
1. a high barrier seal film, it is characterized in that: comprise protective layer setting up and down and compound barrier layer, described protective layer is laminated polyester film, described compound barrier layer is multi-layer co-extruded composite membrane, comprises as the evoh layer of basic unit with as the modified low-density polyethylene layer of bottom; Described protective layer is by the high barrier seal film described in the compound formation of upper surface hot pressing of adhesive and described compound barrier layer, and described high barrier seal film seals the oral area at container by the bottom of compound barrier layer.
2. high barrier seal film according to claim 1, is characterized in that: between described protective layer and compound barrier layer, be provided with polyester aluminium plating membrane, described polyester aluminium plating membrane is bonding with described protective layer and compound barrier layer respectively by adhesive.
3. high barrier seal film according to claim 1 and 2, is characterized in that: described compound barrier layer comprises and is symmetricly set on from inside to outside the upper and lower tack coat of described basic unit and setting layer; Described adhesive linkage is ethylene acrylic acid co polymer layer, and described setting layer is high-density polyethylene layer.
4. high barrier seal film according to claim 3; it is characterized in that: described compound barrier layer also comprises the protective layer that is separately positioned on second adhesive linkage in two setting layer outsides and is located at the compound barrier layer in one of them the second adhesive linkage outside; and the bottom that the outside of another the second adhesive linkage is described compound barrier layer; described the second tack coat is ethylene acrylic acid co polymer layer, and the protective layer of described compound barrier layer is low density polyethylene layer.
5. high barrier seal film according to claim 1, is characterized in that: described high barrier seal film is transparent sealed membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334522.0U CN203888322U (en) | 2014-06-20 | 2014-06-20 | High-barrier sealing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334522.0U CN203888322U (en) | 2014-06-20 | 2014-06-20 | High-barrier sealing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203888322U true CN203888322U (en) | 2014-10-22 |
Family
ID=51714768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420334522.0U Expired - Fee Related CN203888322U (en) | 2014-06-20 | 2014-06-20 | High-barrier sealing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203888322U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106697621A (en) * | 2015-07-20 | 2017-05-24 | 宜兴威尼特包装袋有限公司 | Impact-resistant high-barrier composite flexible freight bag |
| CN108698386A (en) * | 2016-05-26 | 2018-10-23 | 金帕拉米图贝公司 | Layer flexible piece with high bright luster |
| CN108819403A (en) * | 2018-05-28 | 2018-11-16 | 广东美士达药包材料股份有限公司 | A kind of composite membrane and preparation method thereof of anti-chlorphenamine maleate pharmacological property decline |
| CN112519367A (en) * | 2020-11-30 | 2021-03-19 | 重庆市金利药包材料有限公司 | Polyester low density polyethylene medicine packaging bag |
-
2014
- 2014-06-20 CN CN201420334522.0U patent/CN203888322U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106697621A (en) * | 2015-07-20 | 2017-05-24 | 宜兴威尼特包装袋有限公司 | Impact-resistant high-barrier composite flexible freight bag |
| CN106697621B (en) * | 2015-07-20 | 2018-09-28 | 宜兴威尼特包装袋有限公司 | Impact-resistant high-barrier composite flexible freight bag |
| CN108698386A (en) * | 2016-05-26 | 2018-10-23 | 金帕拉米图贝公司 | Layer flexible piece with high bright luster |
| CN108819403A (en) * | 2018-05-28 | 2018-11-16 | 广东美士达药包材料股份有限公司 | A kind of composite membrane and preparation method thereof of anti-chlorphenamine maleate pharmacological property decline |
| CN108819403B (en) * | 2018-05-28 | 2019-07-09 | 广东美士达药包材料股份有限公司 | A kind of composite membrane and preparation method thereof of anti-chlorphenamine maleate pharmacological property decline |
| CN112519367A (en) * | 2020-11-30 | 2021-03-19 | 重庆市金利药包材料有限公司 | Polyester low density polyethylene medicine packaging bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203888322U (en) | High-barrier sealing film | |
| CA2603631A1 (en) | Seal stock laminate | |
| MY164297A (en) | A seal for a container | |
| CN201694523U (en) | Environment-friendly compound packaging material and packaging bag or box | |
| NO338527B1 (en) | Seals made of multilayer material, for sealing agents, especially a closure cap | |
| CN203994950U (en) | A kind of high-barrier package sheet material with good print | |
| CN205219938U (en) | Novel soft -packing lid material | |
| CN200995872Y (en) | Sealing strip for paper aluminum-plastic composite material | |
| CN202528521U (en) | Plaster packaging composite membrane in paper-aluminum-plastic structure | |
| CN208291851U (en) | A kind of two dimensional code gasket that food safety grade is high | |
| CN201144021Y (en) | Package bag | |
| CN202046562U (en) | Composite packaging film with high-resistance aluminized layer | |
| CN202463050U (en) | Packing composite film for small medicine package | |
| CN202846980U (en) | Composite film roll capable of exhausting air easily | |
| CN202053625U (en) | Multi-layer co-extrusion high-temperature cooking film | |
| CN201712913U (en) | Boiling-resistant coating film | |
| CN202573175U (en) | Easily-uncovered sealing film used for heat-seal glass container | |
| CN103386788A (en) | Laminate-paper easy-pulling cover and preparation method thereof | |
| CN202986212U (en) | Environment-friendly modified polyester polyvinyl chloride and low-density polyethylene solid medicinal compound hard piece | |
| CN206599101U (en) | One kind heat-sealing pad bottle | |
| CN201358018Y (en) | Safe and high-isolation liquid-food composite film | |
| CN202895819U (en) | Casting polypropylene aluminizer/polrvinyl chloride/low-density polyethylene composite hard slice | |
| CN205034506U (en) | Take easily tearing opening's sealing membrane | |
| CN205060394U (en) | Novel PET is soft -packing lid material for bottle | |
| CN204506033U (en) | Multi-layer compound film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20200620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |