CN108238366A - A kind of layer-stepping openable cover film - Google Patents
A kind of layer-stepping openable cover film Download PDFInfo
- Publication number
- CN108238366A CN108238366A CN201810028797.4A CN201810028797A CN108238366A CN 108238366 A CN108238366 A CN 108238366A CN 201810028797 A CN201810028797 A CN 201810028797A CN 108238366 A CN108238366 A CN 108238366A
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- Prior art keywords
- film
- layer
- copolymer
- stepping
- openable cover
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of layer-stepping openable cover films, and including upper film and lower film, multiple air holes are provided in the lower film；An easy-peel absciss layer is provided between the upper film and lower film, the peeling force between the easy-peel absciss layer and upper film is more than peeling force between easy-peel absciss layer and lower film, and when upper film and lower UF membrane, easy-peel absciss layer is adhered to film.The epiphragma of the present invention can be layered, and had lower film to be fixed on plastic containers after opening, prevented content from spilling.
Description
Technical field
The present invention relates to packaging epiphragma field more particularly to a kind of layer-stepping openable cover film, applied to various pallets, cup
The plastic container sealings such as body, bottle.
Background technology
Current existing epiphragma, in product in use, the overwhelming majority is that whole film is detached from plastic containers, plastics hold
Device.For the packaging of aromatic, hygroscopic agent, champignon, insect-proof agent, camphor ball etc., it is desirable that there is excellent resistance using preceding packaging
Content will not leak when property, use.Though conventional epiphragma can be realized by combination of materials uses preceding good barrier
Property, but open rear content and easily take out and spread out, there is very big hidden danger, the use ring for especially having child and children
Border.In view of the above-mentioned problems, patent of the present invention provides a kind of openable cover film of layer-stepping, it is made of upper film and lower film, upper film is opened
Preceding packaging is closed, has good barrier property, after upper film is opened, lower film remains adhered to plastic containers, and the smell of content leads to
Previously prepared aperture in lower film is crossed to appear.
Invention content
It is different from conventional epiphragma it is a primary object of the present invention to provide a kind of layer-stepping openable cover film, it is of the invention
Epiphragma can be layered, and had lower film to be fixed on plastic containers after opening, prevented content from spilling.
To achieve the above object, the present invention provides a kind of layer-stepping openable cover film, it is characterised in that：Including upper film under
Film is provided with multiple air holes in the lower film；An easy-peel absciss layer, the easy-peel absciss layer are provided between the upper film and lower film
Peeling force between upper film is more than the peeling force between easy-peel absciss layer and lower film.When not opening, peeling layer is blocked completely
Each air hole in lower film increases the air-tightness of plastic containers, and when upper film and counterdie detach, easy-peel absciss layer is adhered to
Film exposes air hole, and the gaseous volatilization and gas for carrying out plastic containers content absorb.Wherein upper film can be with
The single layer structure of barriers function or the multilayered structure containing barrier layer；Lower film can be single layer structure with heat sealing functions or contain
There is the multilayered structure of enhancement layer and/or thickening layer.
Further, the upper film thickness is 12 ~ 200 μm, preferably 20 ~ 100 μm；The lower film thickness is 15 ~ 200 μm,
It is preferred that 20 ~ 100 μm.
Further, one layer of adhesion promoter of a transition zone or coating is provided between the upper film and easy-peel absciss layer；
The transition region thickness is 1 ~ 80 μm；The adhesion promoter layer thickness is 0.05 ~ 2 μm.
Further, the transition zone is that thin film is bonded on upper film or carries out coating, and the transition region thickness is 2
~50μm；The adhesion promoter layer thickness is 0.05 ~ 1 μm.
Further, the bonding between the lower film and easy-peel absciss layer is using adhesive bonding, resin melting bonding, heat posted
Any one in the mode of conjunction.
Further, the material of the easy-peel absciss layer is polyethylene and its copolymer, polypropylene and its copolymer, polyurethane
And its copolymer, polyamide and its copolymer, polyethers and its copolymer, polyester and its copolymer, makrolon and its copolymer,
Polystyrene and its copolymer, polyacrylonitrile and its copolymer, butadiene-styrene rubber, nitrile rubber, EP rubbers, neoprene, fourth
Base rubber, butadiene rubber, natural rubber, polybutene and its copolymer, polyvinyl chloride and its copolymer, have poly- 4- methylpentenes
At least one of machine silicon, fluoroplastics, fluorubber and regenerated cellulose.
Further, the upper film is multilayered structure, contains surface layer and at least one barrier layer；The lower film is multilayer knot
Structure contains a hot sealing layer and at least one layer of reinforcement and/or thickening layer；2 ~ 100 μm of the layer thickness of heat-sealing；The upper film or under
Bonding between each layer of film is using any one in adhesive bonding, resin melting bonding, thermal-adhering.
Further, the hot sealing layer and plastic containers heat sealing, the sealing between the hot sealing layer and plastic containers are strong
Degree is more than opens power between lower film and upper film so that will not simultaneously be drawn the sealing of lower film and plastic containers when upper film is opened
It opens；Sealing strength ＞ 5N/15mm between the hot sealing layer and plastic containers.
Further, the material of the plastic containers is polyester and its copolymer, makrolon and its copolymer, polychlorostyrene second
Alkene and its copolymer, polypropylene and its copolymer, polyacrylonitrile and its copolymer, polystyrene and its copolymer, polyethylene and
Its copolymer, polyamide and its copolymer, polyvinyl alcohol and its copolymer, Vingon and its copolymer, ethylene-tetrafluoro second
Alkene copolymer, regenerated cellulose, polyacrylonitrile and its copolymer, acrylate and its copolymer, methacrylic resin
And its at least one of copolymer；The hot sealing layer is heat sealable on plastic containers, being polyethylene and its copolymer, polypropylene
And its copolymer, polyacrylonitrile and its copolymer, polyester and its copolymer, the modifier of ethylene-vinyl acetate copolymer, propylene
Acid ester resin and its copolymer, methacrylate resin and its copolymer, Vingon and its copolymer, polyamide and its
At least one of copolymer, polybutene and its copolymer.
Further, the surface layer is polyester film, Biaxially oriented polypropylene, cast polypropylene, polyethylene film, poly- carbonic acid
Any one in ester film and nylon membrane；The barrier layer is the film containing high-barrier coating or high-barrier coating, is contained
The PP TYPE of EVOH, the PP TYPE containing nylon, the PP TYPE containing nylon and EVOH, Vingon and
Its copolymer film, polyethylene naphthalate and its copolymer film, makrolon and its copolymer film, polyamide and its
Copolymer film, polyimides and its copolymer film, bidirectional stretching polypropylene film, polystyrene film, regenerated cellulose
Any one in film, aluminium foil and aluminum sheet；The film matrix containing high-barrier coating or high-barrier coating is poly- second
At least one of alkene, polypropylene, polyester, nylon, polystyrene, acrylate, methacrylate resin；The height
Barrier coating is any one in metallic aluminium, silica, aluminium oxide, silicon nitride, silicon carbide, graphene coating；The high resistant
Every coating can be PVDC coatings, PVA coatings.
The invention has the advantages that：
1. different from conventional epiphragma, epiphragma of the invention can be layered, and have lower film to be fixed on plastic containers after opening, and be prevented
Only content spills.
Film and lower film open that power is small on 2., have the effect easily opened.
3. the hot sealing layer of epiphragma can change according to the material difference of plastic containers, having between plastic containers can
It is sealed by ground.
4. epiphragma open before have good barrier property, after opening, content smell can by advance in lower film into
The aperture of type appears.
Description of the drawings
Fig. 1 is the structure diagram of layer-stepping openable cover film of the present invention and plastic containers.
Fig. 2 is the cross-sectional view of the layer-stepping openable cover film of the embodiment of the present invention 1.
Reference sign：
1 is upper film；11 be surface layer；12 be barrier layer；13 be transition zone；2 be easy-peel absciss layer；3 be lower film；31 be enhancement layer；32
For hot sealing layer；33 be air hole；4 be plastic-sucking tray.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Embodiment 1
The present embodiment provides a kind of layer-stepping openable cover film applied on solid aromatic, which is arranged on plastic-sucking tray 4
On, the material of plastic-sucking tray is PP.Epiphragma includes upper film 1 and lower film 3, and air hole 33, upper film 1 and lower film 3 are provided in lower film
Between be provided with easy-peel absciss layer 2, the peeling force between easy-peel absciss layer 2 and upper film 1 is more than stripping between easy-peel absciss layer 2 and lower film 3
From power, film 1 is torn, when making film 1 and the separation of lower film 3, easy-peel absciss layer 2 is adhered to film 1, exposes the air hole in lower film 3
33, the content of plastic-sucking tray 4 can pass through 33 Volatilized smell of air hole.
Upper film 1 in the present embodiment includes surface layer 11, barrier layer 12 and transition zone 13, and overall thickness is 71 μm；Lower film includes
Enhancement layer 31 and hot sealing layer 32, overall thickness are 45 μm.Wherein surface layer 11, barrier layer 12, transition zone 13, easy-peel absciss layer 2, enhancement layer
31 and hot sealing layer 32 set gradually, wherein the material on surface layer 11 is PET, and the material of barrier layer 12 is contains the multi-layer co-extruded of nylon
The material of film and transition zone 13 is PE.Transition zone 13 can increase the bonding force of easy-peel absciss layer 2 and upper film 1.Reinforcement in lower film
The material of layer 31 is PET, and the material of hot sealing layer 32 is CPP, and hot sealing layer 32 can be with 4 heat sealing of plastic-sucking tray.In the present embodiment
Upper 1 each layer of film and 3 each layer of lower film are binded with dry multiple mode.
By cross cutting, after being molded air hole 33 in lower film, the OTR ＜ 20cc/ of the epiphragma（㎡·24h）, can apply and make
The epiphragma of solid aromatic.
Upper film and lower film in the present embodiment are multilayered structure, and upper film may be the individual layer knot with barriers function
Structure, lower film may be the single layer structure with heat sealing functions.
Embodiment 2
The present embodiment provides a kind of epiphragma applied on hygroscopic agent, which is arranged on plastic-sucking tray 4, the material of plastic-sucking tray
Matter is PVC.Epiphragma includes upper film 1 and lower film 3, is provided with air hole 33 in lower film, is provided between upper film 1 and lower film 3 easy-peel
Absciss layer 2, the peeling force between easy-peel absciss layer 2 and upper film 1 are more than the peeling force between easy-peel absciss layer 2 and lower film 3, tear film 1,
When detaching film 1 and lower film 3, easy-peel absciss layer 2 is adhered to film 1, exposes the air hole 33 in lower film 3, plastic-sucking tray 4 it is interior
Tolerant permeable air hole 33 absorbs gas.
Upper film 1 in the present embodiment includes surface layer 11, barrier layer 12 and transition zone 13, and overall thickness is 74 μm；Lower film includes
Hot sealing layer 32, overall thickness are 50 μm.Wherein surface layer 11, barrier layer 12, transition zone 13, easy-peel absciss layer 2 and hot sealing layer 32 are set successively
It puts, wherein the material on surface layer 11 is PET, and the material of barrier layer 12 is MOPP and the material of transition zone 13 is PE.Transition zone 13 can
To increase the bonding force of easy-peel absciss layer 2 and upper film 1.The material of hot sealing layer 32 is PVC in lower film, and hot sealing layer 32 can be with plastic-sucking tray
4 heat sealings.1 each layer of upper film and 3 each layer of lower film in the present embodiment are binded with dry multiple mode.
It is die cut, after being molded air hole 33 in lower film, the WVTR ＜ 2g/ of the epiphragma（㎡·24h）, can apply and make moisture absorption
The epiphragma of agent.
Upper film and lower film in the present embodiment are multilayered structure, and upper film may be the individual layer knot with barriers function
Structure, lower film may be the single layer structure with heat sealing functions.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of layer-stepping openable cover film, it is characterised in that：Including upper film and lower film, it is provided in the lower film multiple ventilative
Hole；An easy-peel absciss layer is provided between the upper film and lower film, the peeling force between the easy-peel absciss layer and upper film is more than easy-peel
When the peeling force between absciss layer and lower film, upper film and lower UF membrane, easy-peel absciss layer is adhered to film.
2. layer-stepping openable cover film as described in claim 1, it is characterised in that：The upper film thickness is 12 ~ 200 μm；It is described
Lower film thickness is 15 ~ 200 μm.
3. layer-stepping openable cover film as described in claim 1, it is characterised in that：It is provided between the upper film and easy-peel absciss layer
One layer of adhesion promoter of one transition zone or coating；The transition region thickness is 1 ~ 80 μm；The adhesion promoter layer thickness
It is 0.01 ~ 2 μm.
4. layer-stepping openable cover film as claimed in claim 3, it is characterised in that：The transition zone is that one layer is bonded on upper film
Film carries out coating, and the transition region thickness is 2 ~ 50 μm；The adhesion promoter layer thickness is 0.05 ~ 1 μm.
5. layer-stepping openable cover film as described in claim 1, it is characterised in that：Bonding between the lower film and easy-peel absciss layer
Bonded using adhesive, resin melting bonding, by the way of thermal-adhering in any one.
6. layer-stepping openable cover film as described in claim 1, it is characterised in that：The material of the easy-peel absciss layer for polyethylene and
Its copolymer, polypropylene and its copolymer, polyurethane and its copolymer, polyamide and its copolymer, polyethers and its copolymer gather
Ester and its copolymer, makrolon and its copolymer, polystyrene and its copolymer, polyacrylonitrile and its copolymer, butylbenzene rubber
Glue, nitrile rubber, EP rubbers, neoprene, butyl rubber, butadiene rubber, natural rubber, polybutene and its copolymer gather
At least one of vinyl chloride and its copolymer, poly- 4- methylpentenes, organosilicon, fluoroplastics, fluorubber and regenerated cellulose.
7. layer-stepping openable cover film as described in claim 1, it is characterised in that：The upper film is multilayered structure, contains surface layer
With at least one barrier layer；The lower film is multilayered structure, contains a hot sealing layer and at least one layer of reinforcement and/or thickening layer；
2 ~ 100 μm of the layer thickness of heat-sealing；Bonding between the upper film or each layer of lower film is glued using adhesive bonding, resin melting
It closes, any one in thermal-adhering.
8. layer-stepping openable cover film as claimed in claim 7, it is characterised in that：The hot sealing layer and plastic containers heat sealing,
Sealing strength between the hot sealing layer and plastic containers is more than opens power between lower film and upper film so that when upper film is opened not
The sealing of lower film and plastic containers can be pulled open simultaneously；Sealing strength ＞ 5N/15mm between the hot sealing layer and plastic containers.
9. layer-stepping openable cover film as claimed in claim 8, it is characterised in that：The material of the plastic containers for polyester and its
Copolymer, makrolon and its copolymer, polyvinyl chloride and its copolymer, polypropylene and its copolymer, polyacrylonitrile and its altogether
Polymers, polystyrene and its copolymer, polyethylene and its copolymer, polyamide and its copolymer, polyvinyl alcohol and its copolymer,
Vingon and its copolymer, ethylene-tetrafluoroethylene copolymer, regenerated cellulose, polyacrylonitrile and its copolymer, acrylic acid
At least one of ester resin and its copolymer, methacrylic resin and its copolymer；The hot sealing layer is heat sealable to plastics
On container, be polyethylene and its copolymer, polypropylene and its copolymer, polyacrylonitrile and its copolymer, polyester and its copolymer,
Modifier, acrylate and its copolymer of ethylene-vinyl acetate copolymer, methacrylate resin and its copolymerization
At least one of object, Vingon and its copolymer, polyamide and its copolymer, polybutene and its copolymer.
10. layer-stepping openable cover film as claimed in claim 7, it is characterised in that：The surface layer is polyester film, biaxial tension gathers
Any one in Polypropylene film, cast polypropylene film, polyethylene film, polyester film, polycarbonate membrane and nylon membrane；The barrier
Layer is the film containing high-barrier coating or high-barrier coating, and the PP TYPE containing EVOH contains the multi-layer co-extruded of nylon
Film, the PP TYPE containing nylon and EVOH, Vingon and its copolymer film, polyethylene naphthalate and its altogether
Homopolymer film, makrolon and its copolymer film, polyamide and its copolymer film, polyimides and its copolymer film,
Any one in bidirectional stretching polypropylene film, polystyrene film, RCF regenerated cellulose film, aluminium foil and aluminum sheet；It is described
Film matrix containing high-barrier coating or high-barrier coating is polyethylene, polypropylene, polyester, makrolon, nylon, polyphenyl second
At least one of alkene, acrylate, methacrylate resin；The high-barrier coating is metallic aluminium, silica, oxygen
Change at least one of aluminium, silicon nitride, silicon carbide, graphene coating；The high-barrier coating can be PVDC coatings, PVA paintings
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028797.4A CN108238366A (en) | 2018-01-12 | 2018-01-12 | A kind of layer-stepping openable cover film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028797.4A CN108238366A (en) | 2018-01-12 | 2018-01-12 | A kind of layer-stepping openable cover film |
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| Publication Number | Publication Date |
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| CN108238366A true CN108238366A (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810028797.4A Pending CN108238366A (en) | 2018-01-12 | 2018-01-12 | A kind of layer-stepping openable cover film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973287A (en) * | 2018-08-15 | 2018-12-11 | 江阴宝柏包装有限公司 | One kind is packed for easily taking off composite membrane and its manufacturing method |
| CN109648928A (en) * | 2018-12-29 | 2019-04-19 | 杭州顶正包材有限公司 | It is with holes easily to take off film, with holes easily take off film container and manufacturing process |
| CN110103555A (en) * | 2019-05-08 | 2019-08-09 | 金石包装（嘉兴）有限公司 | One kind taking off the strippable sealing epiphragma of lid |
| CN110370739A (en) * | 2019-08-07 | 2019-10-25 | 浙江金石包装有限公司 | A kind of packing film and preparation method thereof |
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| CN1245469A (en) * | 1996-11-25 | 2000-02-23 | 克里奥瓦克公司 | Package with double film covering provided with gas-impermeable film and delaminatable gas-permeable film |
| JP2002128149A (en) * | 2000-10-31 | 2002-05-09 | Toppan Printing Co Ltd | Separable lid |
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| JP2013209127A (en) * | 2012-03-30 | 2013-10-10 | Toppan Printing Co Ltd | Steam-vent lid material and sealed container using it |
| CN204263649U (en) * | 2014-11-13 | 2015-04-15 | 苏州海顺包装材料有限公司 | A kind of bubble-cap epiphragma being provided with prestripping position |
| CN208070440U (en) * | 2018-01-12 | 2018-11-09 | 惠州宝柏包装有限公司 | A kind of layer-stepping openable cover film |
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| JPH04212840A (en) * | 1990-12-06 | 1992-08-04 | Toyo Alum Kk | Packaging material for aromatic |
| US6248380B1 (en) * | 1995-06-06 | 2001-06-19 | Cryovac, Inc. | Package having a dual-film lid comprising a gas-impermeable film and a delaminatable, gas-permeable film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973287A (en) * | 2018-08-15 | 2018-12-11 | 江阴宝柏包装有限公司 | One kind is packed for easily taking off composite membrane and its manufacturing method |
| CN109648928A (en) * | 2018-12-29 | 2019-04-19 | 杭州顶正包材有限公司 | It is with holes easily to take off film, with holes easily take off film container and manufacturing process |
| CN110103555A (en) * | 2019-05-08 | 2019-08-09 | 金石包装（嘉兴）有限公司 | One kind taking off the strippable sealing epiphragma of lid |
| CN110370739A (en) * | 2019-08-07 | 2019-10-25 | 浙江金石包装有限公司 | A kind of packing film and preparation method thereof |
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