CN209409531U - A kind of multi-layer co-extruded antifog preservative film - Google Patents
A kind of multi-layer co-extruded antifog preservative film Download PDFInfo
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- CN209409531U CN209409531U CN201821557297.1U CN201821557297U CN209409531U CN 209409531 U CN209409531 U CN 209409531U CN 201821557297 U CN201821557297 U CN 201821557297U CN 209409531 U CN209409531 U CN 209409531U
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- Prior art keywords
- layer
- film
- extruded
- film layer
- antifog
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- 239000003755 preservative agent Substances 0.000 title claims abstract description 19
- 230000002335 preservative effect Effects 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 230000035939 shock Effects 0.000 claims abstract description 6
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- -1 polyethylene Polymers 0.000 claims description 21
- 239000004698 Polyethylene Substances 0.000 claims description 19
- 229920000573 polyethylene Polymers 0.000 claims description 19
- 239000003094 microcapsule Substances 0.000 claims description 8
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract description 7
- 239000010408 film Substances 0.000 abstract 12
- 239000010409 thin film Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 99
- 235000013305 food Nutrition 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000003684 theca cell Anatomy 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 229920006266 Vinyl film Polymers 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004520 agglutination Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
The utility model relates to fresh-keeping fit film fields, it discloses a kind of multi-layer co-extruded antifog preservative films, solves the technical issues of fog or water droplet are easily formed in current thin film surface, including five tunic layers, five layers of film layer co-extrusion form composite membrane, and composite membrane includes the inner layer film contacted with to fresh-keeping foodstuff, the outer membrane contacted with air and the mesopelagic layer being arranged between inner layer film and outer membrane, and the inner layer film is antifogging film layer, mesopelagic layer is barrier film layer, and outer membrane is protecting against shock film layer.According to above technical scheme, antifogging film layer is made for ethylene-vinyl acetate copolymer material by the way that the inner layer film for contacting with to fresh-keeping foodstuff is arranged, improves anti-fog effect to reach, increase the anti-fog properties purpose of film, the practicality is good, application easy to spread, has biggish value.
Description
Technical field
The utility model relates to fresh-keeping fit film fields, more specifically, it relates to a kind of multi-layer co-extruded antifog preservative film.
Background technique
Preservative film is a kind of plastic packing product, is mainly used for the occasions such as refrigerator food saves, fresh and prepared food is packed,
Family life, supermarket sales field, hotel and industrial food packaging applications are all widely used.
Existing notification number is the Chinese patent of CN205149087U, discloses one kind and easily takes off film comprising base, mesh belt
Layer, coating and adhesive layer, mesh belt layer are set to base bottom surface, and coating is coated on the bottom surface of base and mesh belt layer, and parcel net
The bottom surface of coating is arranged in belt, adhesive layer.
However, above-mentioned easily take off that film tension is lower, and the surface tension of water is larger, is refrigerating or is heating by fresh-keeping food
When product, vapor can form fog or water droplet in film surface, seriously affect the transparency of film.
Utility model content
The technical issues of easily forming fog or water droplet for above-mentioned film surface, the utility model is intended to provide one kind
Multi-layer co-extruded antifog preservative film, by the way that the inner layer film for contacting with to fresh-keeping foodstuff is arranged as ethylene-vinyl acetate copolymer
Antifogging film layer is made in material, improves anti-fog effect to reach, and increases the anti-fog properties purpose of film.
To achieve the above object, the utility model provides following technical solution:
A kind of multi-layer co-extruded antifog preservative film, including five tunic layers, five layers of film layer co-extrusion form composite membrane；
Composite membrane includes the inner layer film contacted with to fresh-keeping foodstuff, the outer membrane contacted with air and is arranged in inner layer film
Mesopelagic layer between outer membrane；
The inner layer film is using antifogging film layer made of ethylene-vinyl acetate copolymer, and the mesopelagic layer is barrier
Film layer, the outer membrane are protecting against shock film layer.
Through the above technical solutions, outer membrane is protecting against shock film, increase the overall mechanical properties of natural complex fresh-keeping film；Mesopelagic layer
To obstruct film layer, it can prevent oxygen from contacting through preservative film with food from air, so that food is oxidizable rotten；Inner layer film
Using antifogging film layer made of ethylene-vinyl acetate copolymer material, prevent since ethylene-vinyl acetate copolymer material has
Mist function increases the anti-fog properties of film so that reaching anti-fog effect.
The utility model is further arranged to: several antifog microcapsules, antifog micro- glue are provided in the inner layer film
It is intracapsular to be equipped with cavity, antifoggant is provided in the cavity.
Through the above technical solutions, antifoggant generally all selects surfactant；Band in the molecular structure of surfactant
There are hydrophobic grouping and hydrophilic radical, under the action of hydrophilic radical, the surface of film will form water-wetted surface, so as to increase film
The wetting tension on surface；
Simultaneously when water is contacted with film surface, part of the surface activating agent is dissolved in water, and reduces the surface tension of water, to subtract
Few and film surface contact angle reaches so that water leaves in film surface wetting and spreading at the moisture film of a continuous uniform, and along film surface
Anti- fog effect, and then the anti-fog properties of film can be increased.
The utility model is further arranged to: the inner layer film is in closedcells structure.
Through the above technical solutions, the surface of antifogging film layer is in closedcells shape, abscess shape structure has vacuum space,
Poor thermal conductivity, so that antifogging film layer also has heat-insulated and heat preservation function.
The utility model is further arranged to: the outer membrane is polyethylene terephthalate film layer.
Through the above technical solutions, by using pet material, since the material has well
Mechanical property, impact strength is 3 ~ 5 times of other films, outer membrane is set by film layer made of the material, so that outer layer
Film has strong resistance performance, is hardly damaged.
The utility model is further arranged to: the mesopelagic layer includes two layers of polyethylene film layer and setting described in two layers
Barrier film layer between polyethylene film layer, the side of two layers polyethylene film layer far from barrier film layer respectively with inner layer film and
Outer membrane connection.
Through the above technical solutions, setting obstructs film layer between polyethylene film layer, so that the thermoplasticity of barrier film layer
More preferably, it is convenient for co-extrusion operation；Meanwhile barrier film layer is set, it can prevent oxygen from contacting through preservative film with food from air,
So that food is oxidizable rotten.
The utility model is further arranged to: the barrier film layer is ethylene vinyl alcohol copolymer film layer.
Through the above technical solutions, since ethylene-vinyl alcohol copolymer material is that a kind of pair of gas has high-barrier effect
Material, it is used in structure of composite membrane, can prevent the infiltration of oxygen and for improving the reservation journey of fragrance and quality
Degree.
The utility model is further arranged to: being provided on the junction surface of the barrier film layer and polyethylene film layer
The T-shaped concave-convex articulamentum in section, the adjacent concave-convex articulamentum clamping.
Through the above technical solutions, the junction of setting barrier film layer and polyethylene film layer is connected using concave-convex articulamentum clamping
It connects, so that connecting more stable, intensity increase between barrier film layer and polyethylene film layer.
The utility model is further arranged to: the surface of the bumps articulamentum is equipped with protrusion.
Through the above technical solutions, the surface of concave-convex articulamentum be equipped with protrusion, increase adjacent concave-convex articulamentum it
Between frictional force, thus, further such that barrier film layer and polyethylene film layer between connect it is more stable, intensity increase.
In conclusion the utility model has the following beneficial effects:
(1) it is made of setting theca interna of the ethylene-vinyl acetate copolymer material with anti-fog function, so that inner membrance
There is anti-fog effect when layer is contacted with food, increase the anti-fog properties of film；
(2) it is made of setting barrier film layer of ethylene-vinyl alcohol copolymer material, is that a kind of pair of gas has high resistant
Every the material of effect, it is used in structure of composite membrane, can prevent the infiltration of oxygen and for improving fragrance and quality
Reserving degree；
(3) it is made up of setting outer membrane of pet material, since the material has well
Mechanical property, impact strength is 3 ~ 5 times of other films, outer membrane is set by film layer made of the material, so that outer layer
Film has strong resistance performance, is hardly damaged.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of preservative film；
Fig. 2 is enlarged view at A in Fig. 1；
Fig. 3 is the section view of antifog capsule, to show cavity structure；
Fig. 4 is enlarged view at B in Fig. 1.
Appended drawing reference: 1, composite membrane；11, inner layer film；12, mesopelagic layer；121, polyethylene film layer；122, film layer is obstructed；13,
Outer membrane；2, antifog microcapsules；21, cavity；3, concave-convex articulamentum；31, raised.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in further detail, but the implementation of the utility model
Mode is not limited only to this.
As depicted in figs. 1 and 2, a kind of multi-layer co-extruded antifog preservative film, including five tunic layers, five tunic layer co-extrusion form multiple
Film 1 is closed, composite membrane 1 is including the inner layer film 11 contacted with to fresh-keeping foodstuff, the outer membrane 13 contacted with air and setting
Mesopelagic layer 12 between tunic 11 and outer membrane 13.
Inner layer film 11 is antifogging film layer.Specifically, inner layer film 11 is ethylene-vinyl acetate copolymer film layer.Meanwhile joining
According to Fig. 3, it is provided with several antifog microcapsules 2 in inner layer film 11, cavity 21, setting in cavity 21 are equipped in antifog microcapsules 2
There is antifoggant.It is provided with cavity 21 in antifog microcapsules 2, is provided with antifoggant in cavity 21.Antifoggant in antifog microcapsules 5
Polyol fatty acid rouge, quaternary ammonium salt surface active agent, polyalcohol polyoxyethylene ether etc. can be selected.Wherein, referring to Fig. 4 institute
Show, the surface of inner layer film 11 is in closedcells shape.
Mesopelagic layer 12 is the film layer with barriering effect, and mesopelagic layer 12 includes that two layers of polyethylene film layer 121 and setting exist
Barrier film layer 122 between two layers of polyethylene film layer 121, side difference of the two layers of polyethylene film layer 121 far from barrier film layer 122
It is Nian Jie with inner layer film 11 and outer membrane 13.Wherein, barrier film layer 122 is ethylene vinyl alcohol copolymer film layer, being capable of anti-block
The infiltration of gas and for improving the reserving degree of fragrance and quality.
In order to enable the connection between barrier film layer 122 and polyethylene film layer 121 is stronger, in barrier film layer 122 and gather
The T-shaped concave-convex articulamentum 3 in section is provided on the junction surface of vinyl film 121, when barrier film layer 122 and polyethylene
When film layer 121 is bonded, adjacent concave-convex articulamentum 3 is clamped.Meanwhile the surface of concave-convex articulamentum 3 is equipped with protrusion 31, increases adjacent
Concave-convex articulamentum 3 in clamping mutual frictional force, further such that barrier film layer 122 and polyethylene film layer 121 it
Between connection it is stronger.
Outer membrane 13 is protecting against shock film layer, and the case where for preventing composite membrane 1 to be easily damaged, and outer membrane 13 is using poly- pair
Ethylene terephthalate material is made, and has the effect of anti-impact force using pet material, to reach
To the purpose of above-mentioned anti-tamper.
When use: the side of inner layer film 11 is contacted with food to be packaged or other articles, achieve the effect that it is fresh-keeping, together
When, theca interna 11 is antifogging film layer, can effectively control the agglutination of fog, and outer membrane 13 is protecting against shock film layer, to allow multiple
Film 1 is closed to be not easy to be damaged.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of multi-layer co-extruded antifog preservative film, which is characterized in that including five tunic layers, five layers of film layer co-extrusion form compound
Film (1)；
Composite membrane (1) includes the inner layer film (11) contacted with to fresh-keeping foodstuff, the outer membrane (13) contacted with air and setting
Mesopelagic layer (12) between inner layer film (11) and outer membrane (13)；
The inner layer film (11) is that manufactured antifogging film layer is copolymerized using ethene-vinyl acetate, and the mesopelagic layer (12) is resistance
Membrane layer, the outer membrane (13) are protecting against shock film layer.
2. the multi-layer co-extruded antifog preservative film of one kind according to claim 1, which is characterized in that set in the inner layer film (11)
Several antifog microcapsules (2) are equipped with, cavity (21) is equipped in the antifog microcapsules (2), is provided in the cavity (21) anti-
Mist agent.
3. the multi-layer co-extruded antifog preservative film of one kind according to claim 1, which is characterized in that the inner layer film (11) is in close
Close foam structure.
4. the multi-layer co-extruded antifog preservative film of one kind according to claim 1, which is characterized in that the outer membrane (13) is poly-
Ethylene glycol terephthalate film layer.
5. the multi-layer co-extruded antifog preservative film of one kind according to claim 1, which is characterized in that the mesopelagic layer (12) includes
Two layers of polyethylene film layer (121) and the barrier film layer (122) being arranged between two layers of polyethylene film layer (121), two layers
The polyethylene film layer (121) connect with inner layer film (11) and outer membrane (13) respectively far from the side of barrier film layer (122).
6. the multi-layer co-extruded antifog preservative film of one kind according to claim 5, which is characterized in that the barrier film layer (122)
For ethylene vinyl alcohol copolymer film layer.
7. the multi-layer co-extruded antifog preservative film of one kind according to claim 5, which is characterized in that the barrier film layer (122)
With the T-shaped concave-convex articulamentum (3) in section is provided on the junction surface of polyethylene film layer (121), adjacent is described recessed
Convex articulamentum (3) clamping.
8. the multi-layer co-extruded antifog preservative film of one kind according to claim 7, which is characterized in that the bumps articulamentum (3)
Surface be equipped with raised (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557297.1U CN209409531U (en) | 2018-09-21 | 2018-09-21 | A kind of multi-layer co-extruded antifog preservative film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557297.1U CN209409531U (en) | 2018-09-21 | 2018-09-21 | A kind of multi-layer co-extruded antifog preservative film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209409531U true CN209409531U (en) | 2019-09-20 |
Family
ID=67931006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821557297.1U Active CN209409531U (en) | 2018-09-21 | 2018-09-21 | A kind of multi-layer co-extruded antifog preservative film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209409531U (en) |
-
2018
- 2018-09-21 CN CN201821557297.1U patent/CN209409531U/en active Active
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