CN208070440U - A kind of layer-stepping openable cover film - Google Patents
A kind of layer-stepping openable cover film Download PDFInfo
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- CN208070440U CN208070440U CN201820048595.1U CN201820048595U CN208070440U CN 208070440 U CN208070440 U CN 208070440U CN 201820048595 U CN201820048595 U CN 201820048595U CN 208070440 U CN208070440 U CN 208070440U
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- film
- copolymer
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- stepping
- openable cover
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- 239000013039 cover film Substances 0.000 title claims abstract description 19
- 239000010408 film Substances 0.000 claims abstract description 145
- 229920003023 plastic Polymers 0.000 claims abstract description 25
- 239000004033 plastic Substances 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 86
- 229920001577 copolymer Polymers 0.000 claims description 74
- 238000007789 sealing Methods 0.000 claims description 34
- -1 polyethylene Polymers 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 21
- 230000004888 barrier function Effects 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 18
- 239000004743 Polypropylene Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 17
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 239000002344 surface layer Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 239000004425 Makrolon Substances 0.000 claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 7
- 229920002223 polystyrene Polymers 0.000 claims description 7
- 239000002318 adhesion promoter Substances 0.000 claims description 6
- 239000004627 regenerated cellulose Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 229920001083 polybutene Polymers 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000005025 cast polypropylene Substances 0.000 claims description 3
- 229920006267 polyester film Polymers 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical class CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000005062 Polybutadiene Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 2
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 239000012793 heat-sealing layer Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000113 methacrylic resin Substances 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002857 polybutadiene Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229920005549 butyl rubber Polymers 0.000 claims 1
- 238000007334 copolymerization reaction Methods 0.000 claims 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 229920001519 homopolymer Polymers 0.000 claims 1
- 229920006284 nylon film Polymers 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- 239000004417 polycarbonate Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 229920006389 polyphenyl polymer Polymers 0.000 claims 1
- 241001232787 Epiphragma Species 0.000 abstract description 17
- 239000002356 single layer Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003230 hygroscopic agent Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 description 1
- 241000222519 Agaricus bisporus Species 0.000 description 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229960000846 camphor Drugs 0.000 description 1
- 229930008380 camphor Natural products 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model discloses a kind of layer-stepping openable cover film, 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 utility model can be layered, and had lower film to be fixed on plastic containers after opening, prevented content from spilling.
Description
Technical field
The utility model is related to pack epiphragma field more particularly to a kind of layer-stepping openable cover film, it is applied to various supports
The plastic container sealings such as disk, cup 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 be easy to take out and spread out, there is very big hidden danger, especially there is the use ring of child and children
Border.In view of the above-mentioned problems, the utility model patent provides a kind of openable cover film of layer-stepping, it is made of upper film and lower film, upper film
Packaging is closed before opening, and has good barrier property, after upper film is opened, lower film remains adhered to plastic containers, the gas of content
Taste is appeared by previously prepared aperture in lower film.
Utility model content
The main purpose of the utility model is to provide a kind of layer-stepping openable cover films, different from conventional epiphragma, this reality
It can be layered with novel epiphragma, there is lower film to be fixed on plastic containers after opening, prevent content from spilling.
To achieve the above object, the utility model provides a kind of layer-stepping openable cover film, it is characterised in that：Including upper film with
Lower film is provided with multiple air holes in the lower film；An easy-peel absciss layer is provided between the upper film and lower film, it is described easily peelable
Peeling force between layer and 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, when increasing the air-tightness of plastic containers, upper film and lower UF membrane, easy-peel absciss layer is adhered to
Film makes air hole expose, 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 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 to be bonded thin film on upper film or carry 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 heat-sealing layer thickness；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 utility model has the advantages that：
1. different from conventional epiphragma, the epiphragma of the utility model can be layered, and have lower film to be fixed on plastics appearance after opening
On device, prevent content from spilling.
On 2. film and lower film to open power small, have the effect of being easy to open.
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 at
The aperture of type appears.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model layer-stepping openable cover film and plastic containers.
Fig. 2 is the cross-sectional view of the layer-stepping openable cover film of the utility model embodiment 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 reinforcement
Layer；32 be 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, functional characteristics and advantage of the utility model aim.
Specific implementation mode
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
Embodiment 1
The present embodiment provides a kind of layer-stepping openable cover film applied on solid aromatic, which is arranged in plastic suction support
On disk 4, the material of plastic-sucking tray is PP.Epiphragma includes upper film 1 and lower film 3, air hole 33 is provided in lower film, upper film 1 is under
Easy-peel absciss layer 2 is provided between film 3, the peeling force between easy-peel absciss layer 2 and upper film 1 is more than between easy-peel absciss layer 2 and lower film 3
Peeling force tears film 1, and when film 1 and lower film 3 being made to detach, easy-peel absciss layer 2 is adhered to film 1, exposes ventilative in lower film 3
The content in hole 33, 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 to contain 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
1 each layer of upper 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 single 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, plastic-sucking tray
Material be PVC.Epiphragma includes upper film 1 and lower film 3, and air hole 33 is provided 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 film 1 and lower film 3 being made to detach, easy-peel absciss layer 2 is adhered to film 1, exposes the air hole 33 in lower film 3, plastic-sucking tray 4
Content can pass through air hole 33 absorb 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 sets, 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 single 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 utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
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
Using adhesive bonding, 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 be 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 heat-sealing layer thickness；Bonding between the upper film or each layer of lower film is viscous 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 be 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 arrive 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 is poly-
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 |
|---|---|---|---|
| CN201820048595.1U CN208070440U (en) | 2018-01-12 | 2018-01-12 | A kind of layer-stepping openable cover film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820048595.1U CN208070440U (en) | 2018-01-12 | 2018-01-12 | A kind of layer-stepping openable cover film |
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| CN208070440U true CN208070440U (en) | 2018-11-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238366A (en) * | 2018-01-12 | 2018-07-03 | 惠州宝柏包装有限公司 | A kind of layer-stepping openable cover film |
| CN115320188A (en) * | 2022-10-17 | 2022-11-11 | 宁波时代铝箔科技股份有限公司 | Tearable packaging material, preparation method thereof and packaging container |
| US12269659B2 (en) | 2019-11-29 | 2025-04-08 | Selig Sealing Products, Inc. | Foil free tabbed seal |
| US12377630B2 (en) | 2020-05-29 | 2025-08-05 | Selig Sealing Products, Inc. | Dispensing liner |
-
2018
- 2018-01-12 CN CN201820048595.1U patent/CN208070440U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238366A (en) * | 2018-01-12 | 2018-07-03 | 惠州宝柏包装有限公司 | A kind of layer-stepping openable cover film |
| US12269659B2 (en) | 2019-11-29 | 2025-04-08 | Selig Sealing Products, Inc. | Foil free tabbed seal |
| US12377630B2 (en) | 2020-05-29 | 2025-08-05 | Selig Sealing Products, Inc. | Dispensing liner |
| CN115320188A (en) * | 2022-10-17 | 2022-11-11 | 宁波时代铝箔科技股份有限公司 | Tearable packaging material, preparation method thereof and packaging container |
| CN115320188B (en) * | 2022-10-17 | 2023-01-31 | 宁波时代铝箔科技股份有限公司 | Tearable packaging material, preparation method thereof and packaging container |
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Effective date of registration: 20230710 Address after: No. 28 Yixian Road, Torch Development Zone, Zhongshan City, Guangdong Province, 528436 Patentee after: Zhongshan Tiancai Packaging Co.,Ltd. Address before: 516000 Ma Transition Huabao Industrial Zone, Zhongkai Science and Technology Avenue, Huihuan, Huizhou, Guangdong Patentee before: Huizhou Alcan Packaging Propack Co.,Ltd. |