CN202388878U - High-barrier composite membrane - Google Patents
High-barrier composite membrane Download PDFInfo
- Publication number
- CN202388878U CN202388878U CN2011205418400U CN201120541840U CN202388878U CN 202388878 U CN202388878 U CN 202388878U CN 2011205418400 U CN2011205418400 U CN 2011205418400U CN 201120541840 U CN201120541840 U CN 201120541840U CN 202388878 U CN202388878 U CN 202388878U
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- film
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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
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The utility model discloses a high-barrier composite membrane which is formed by compounding a heat seal layer, a functional layer and a structural layer in sequence, and the high-barrier composite membrane is characterized in that the heat seal layer is composed of a thin-film substrate layer and a polyvinyl alcohol coating which is applied to the corona treatment surface of the thin-film substrate layer; the functional layer is composed of a thin-film substrate layer and a polyvinyl alcohol coating which is applied to the corona treatment surface of the thin-film substrate layer, wherein the PVA (Polyvinyl Acetate) serves as a high oxygen barrier layer in stead of an aluminum foil and a PVDC (Polyvinyl Dichloride) coating; and the coating is made of a biodegradable material, which is convenient for recycling the whole composite membrane and friendly to the environment; and simultaneously, the cost of the coating is lower than that of the aluminum foil and the PVDC; and therefore, the high-barrier composite membrane has more advantages.
Description
Technical field
The utility model belongs to the packaging material field, particularly a kind of high-barrier composite membrane.
Background technology
In the packing of some purposes, require the plastic foil of liner that very low OTR oxygen transmission rate and moisture-vapor transmission are arranged.Because the liner bag can be rubbed folding inevitably repeatedly in the use, therefore require this film to have good pliability simultaneously.
At present, the composite membrane that contains aluminium foil has extremely low OTR oxygen transmission rate and moisture-vapor transmission, but the composite membrane that contains aluminium foil is rubbing to be folded down and be easy to generate folding line and pin hole repeatedly, and in actual use, its barrier is had a greatly reduced quality; Therefore as barrel of beer liner bag in the beer packing, its application is restricted.The composite membrane that contains the PVDC coating also has very low moisture-vapor transmission and good oxygen barrier property.But contain chlorine in the coating, be limited to use, and its oxygen barrier property can not reach the effect of aluminium foil.
Summary of the invention
It is a kind of that have low oxygen transmitance, carbon dioxide transmitance and a moisture-vapor transmission and have good pliability and the anti-folding endurance of rubbing that the purpose of the utility model is to provide, and be easy to reclaim the high-barrier composite membrane of post processing.
The technical solution that realizes the utility model purpose is:
A kind of high-barrier composite membrane is composited by hot sealing layer, functional layer, structure sheaf sequentially, and described hot sealing layer is made up of film substrate layer and polyethylene coating, and polyethylene coating is coated the corona treatment face of film substrate layer; Described functional layer is made up of film substrate layer and polyethylene coating, and polyethylene coating is coated the corona treatment face of film substrate layer
The utility model compared with prior art; Its remarkable advantage: the utility model is adopted the modified polyvinylalcohol coating and is substituted aluminium foil; Can obtain with suitable oxygen-barrier property, carbon dioxide barrier, the steam barrier of aluminium foil; This material is a degradation material simultaneously, is easy to waste disposal, and can reduce cost; Because this coating is very thin, and the intensity of polyvinyl alcohol own and toughness are all fine, so this composite membrane has excellent mechanical intensity and pliability, can anti-ly rub folding repeatedly
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation according to the laminated film of the utility model proposition.
The specific embodiment
A kind of high-barrier composite membrane of the utility model; Be composited sequentially by hot sealing layer 1, functional layer 2, structure sheaf 3; Described hot sealing layer 1 is made up of film substrate layer 1-1 and polyethylene coating 1-2, and polyethylene coating 1-2 coats the corona treatment face of film substrate layer 1-1; Described functional layer 2 is made up of film substrate layer 2-1 and polyethylene coating 2-2, and polyethylene coating 2-2 coats the corona treatment of film substrate layer 2-1; Wherein, described film substrate layer 1-1 is polyethylene film or cast polypropylene film; Described film substrate layer 2-1 is biaxially oriented polyester film or BON biaxially oriented nylon film; Described structure sheaf 3 materials are biaxially oriented polyester film or BON biaxially oriented nylon film.
Specify concrete structure and the working condition that proposes according to the utility model below in conjunction with Fig. 1.
This high-barrier structure of composite membrane is: be composited and comprised that three layers constitute from outside to inside by hot sealing layer 1, functional layer 2, structure sheaf 3 orders, compound order is as shown in the figure.
Hot sealing layer 1 is made up of film substrate layer 1-1 and polyethylene coating 1-2, and polyethylene coating 1-2 coats the inside, corona place of film substrate layer 1-1 in advance; Film ground 1-1 is polyethylene film or cast polypropylene film, gives this composite film heat sealing property, has moisture barrier property concurrently, and polyethylene coating 1-2 gives composite membrane good fragrance protectiveness ability.
Functional layer 2 is made up of film substrate layer 2-1 and polyethylene coating 2-2, and polyethylene coating 2-2 coats the inside, corona place of film substrate layer 2-1 in advance.Film substrate layer 2-1 is biaxially oriented polyester film or BON biaxially oriented nylon film; These two kinds of material moisture-vapor transmissions are bigger; The aqueous dispersion that helps in the polyethylene coating sends out, and guarantees the performance of polyethylene coating, can strengthen the mechanical strength of composite membrane simultaneously; Polyethylene coating 2-2 provides good oxygen barrier property.
Structure sheaf 3 is the high mechanical properties material, mainly gives enough mechanical strengths of composite membrane and surface property, and structure sheaf 3 materials are BON biaxially oriented nylon film or biaxially oriented polyester film.
Can adopt the compound adhesive of the special trade mark according to different purposes.
Embodiment one: structure of composite membrane is (BON biaxially oriented nylon film) BOPA//(polyethylene coating-biaxially oriented polyester film) PVA-BOPET//(polyethylene coating-polyethylene film) PVA-LLDPE; It promptly is the inside, the corona place coating PVA coating of the LLDPE film of 70 μ m at thickness; At thickness is the BOPET film corona treated side coating PVA coating of 12 μ m; Again that the two is compound, compound order is that the inside, non-corona place of PVA-BOPET coated film is compound with the PVA coated face of PVA-LLDPE coated film; Be that the BOPA film of 15 μ m is compound with thickness again, compound order is that the PVA coated face of corona treatment face and PVA-BOPET//PVA-LLDPE composite membrane of BOPA film is compound.The oxygen transit dose of this composite membrane is 0.063cm3/ (m224h1atm), and steam penetrating capacity is 1.5g/ (24hm2), and its oxygen-barrier property reaches the performance of aluminium foil.
Embodiment two: structure of composite membrane is BOPA//PVA-BOPET//PVA-CPP (polyethylene coating-cast polypropylene film); It promptly is the inside, the corona place coating PVA coating of the CPP film of 30 μ m at thickness; At thickness is the BOPET film corona treated side coating PVA coating of 12 μ m; Again that the two is compound, compound order is that the inside, non-corona place of PVA-BOPET coated film is compound with the PVA coated face of PVA-CPP coated film; Be that the BOPA film of 15 μ m is compound with thickness again, compound order is that the PVA coated face of corona treatment face and PVA-BOPET//PVA-CPP composite membrane of BOPA film is compound.The oxygen transit dose of this composite membrane is 0.165cm3/ (m224h1atm), and steam penetrating capacity is lower than 2g/ (24hm2).
Claims (4)
1. high-barrier composite membrane; Be composited sequentially by hot sealing layer [1], functional layer [2], structure sheaf [3]; It is characterized in that: described hot sealing layer [1] is made up of film substrate layer [1-1] and polyethylene coating [1-2], and polyethylene coating [1-2] is coated the corona treatment face of film substrate layer [1-1]; Described functional layer [2] is made up of film substrate layer [2-1] and polyethylene coating [2-2], and polyethylene coating [2-2] is coated the corona treatment face of film substrate layer [2-1].
2. a kind of high-barrier composite membrane according to claim 1 is characterized in that: described film substrate layer [1-1] is polyethylene film or cast polypropylene film.
3. a kind of high-barrier composite membrane according to claim 1 is characterized in that: described film substrate layer [2-1] is biaxially oriented polyester film or BON biaxially oriented nylon film.
4. a kind of high-barrier composite membrane according to claim 1 is characterized in that: described structure sheaf [3] material is biaxially oriented polyester film or BON biaxially oriented nylon film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205418400U CN202388878U (en) | 2011-12-22 | 2011-12-22 | High-barrier composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205418400U CN202388878U (en) | 2011-12-22 | 2011-12-22 | High-barrier composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388878U true CN202388878U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205418400U Expired - Lifetime CN202388878U (en) | 2011-12-22 | 2011-12-22 | High-barrier composite membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388878U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264559A (en) * | 2013-05-19 | 2013-08-28 | 海南赛诺实业有限公司 | Novel betelnut packaging composite membrane and preparation method thereof |
| CN105774161A (en) * | 2014-12-19 | 2016-07-20 | 中国航天科工集团八五研究所 | Anti-UV transparent high-barrier diaphragm and preparation method thereof |
| CN105947422A (en) * | 2016-04-28 | 2016-09-21 | 青岛日之容塑料制品有限公司 | Packaging bag for microwave oven and preparation method of packaging bag |
| CN107226271A (en) * | 2017-06-12 | 2017-10-03 | 尼古特斯 | Packaging bag with buffering band structure |
| CN108045044A (en) * | 2017-12-07 | 2018-05-18 | 上海久诚包装有限公司 | A kind of transparent high-barrier composite material and its production technology |
-
2011
- 2011-12-22 CN CN2011205418400U patent/CN202388878U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264559A (en) * | 2013-05-19 | 2013-08-28 | 海南赛诺实业有限公司 | Novel betelnut packaging composite membrane and preparation method thereof |
| CN103264559B (en) * | 2013-05-19 | 2015-04-08 | 海南赛诺实业有限公司 | Novel betelnut packaging composite membrane and preparation method thereof |
| CN105774161A (en) * | 2014-12-19 | 2016-07-20 | 中国航天科工集团八五研究所 | Anti-UV transparent high-barrier diaphragm and preparation method thereof |
| CN105947422A (en) * | 2016-04-28 | 2016-09-21 | 青岛日之容塑料制品有限公司 | Packaging bag for microwave oven and preparation method of packaging bag |
| CN107226271A (en) * | 2017-06-12 | 2017-10-03 | 尼古特斯 | Packaging bag with buffering band structure |
| CN107226271B (en) * | 2017-06-12 | 2019-04-09 | 尼古特斯 | Packaging bag with buffering band structure |
| CN108045044A (en) * | 2017-12-07 | 2018-05-18 | 上海久诚包装有限公司 | A kind of transparent high-barrier composite material and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |