CN105128414B - A kind of composite film material with embedded window structure and preparation method thereof - Google Patents
A kind of composite film material with embedded window structure and preparation method thereof Download PDFInfo
- Publication number
- CN105128414B CN105128414B CN201510558503.5A CN201510558503A CN105128414B CN 105128414 B CN105128414 B CN 105128414B CN 201510558503 A CN201510558503 A CN 201510558503A CN 105128414 B CN105128414 B CN 105128414B
- Authority
- CN
- China
- Prior art keywords
- film
- polyvinyl alcohol
- polyolefin
- class
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 64
- 239000002131 composite material Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000010408 film Substances 0.000 claims abstract description 164
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 63
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 63
- 229920000098 polyolefin Polymers 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 239000010409 thin film Substances 0.000 claims abstract description 11
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims abstract description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 28
- 238000004080 punching Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- 235000011187 glycerol Nutrition 0.000 claims description 12
- -1 Polyene Hydrocarbon Chemical class 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 238000007761 roller coating Methods 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920001684 low density polyethylene Polymers 0.000 claims description 6
- 239000004702 low-density polyethylene Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 238000003851 corona treatment Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 2
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims description 2
- 241001083492 Trapa Species 0.000 claims description 2
- 235000014364 Trapa natans Nutrition 0.000 claims description 2
- 238000006136 alcoholysis reaction Methods 0.000 claims description 2
- 239000008199 coating composition Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 2
- 235000009165 saligot Nutrition 0.000 claims description 2
- 125000003158 alcohol group Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 235000012055 fruits and vegetables Nutrition 0.000 abstract description 9
- 230000004888 barrier function Effects 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002085 enols Chemical class 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Landscapes
- Laminated Bodies (AREA)
Abstract
The present invention is to be related to a kind of composite film material with embedded window structure and preparation method thereof.Composite film material is combined by three-layer thin-film, wherein, middle layer is the perforated film material of polyolefins；Upper and lower two layers are hydrophilic resin polyvinyl alcohol film, and upper and lower two-layer film forms the confining bed to middle layer perforated film hole；The penetrating hole of the perforated film material of intermediate polyolefin class is in upper and lower double-layer films compound tense, make the polyvinyl alcohol material of two layers of the upper and lower layer hole that is embedded and closing middle layer polyolefins perforated film compound while, steam can be discharged again with the window that can obstruct other gases by being formed.Laminated film not only has the gases such as oxygen, carbon dioxide excellent barrier property, while the polyvinyl alcohol film window by being formed on laminated film can discharge and through steam, is kind with selectively ventilative functional film；It can be applied to the fresh-keeping of the fresh goods such as water fruits and vegetables and storage.
Description
Technical field
The present invention relates to a kind of composite film material, more particularly to a kind of THIN COMPOSITE membrane material with embedded window structure
Material and preparation method thereof.
Background technology
Polyolefin（PO）Class plastics（PE, PP etc.）Film is widely used because of the features such as nontoxic, transparent, barrier steam
In water fruits and vegetables and the packaging of other food.Also it is exactly that this kind of plastics material film has good moisture content and water in use
Vapour barrier properties, so after being packed to fruit and vegetable, since the respiration of fruits and vegetables can make to be formed seriously in bag film
Steam and ponding, the fresh goods such as packaged water fruits and vegetables is easily made to rot；In order not to generate ponding, lead to
Punching processing is often carried out on such film, there are penetrating holes by packing film（Window）To discharge the excessive water in part
Vapour, and make not generate ponding in wrapping film bag.But this presence hole of permeability on film can make packaged fruit again
Vegetable easily contacts with extraneous air, leads to the invasion of oxygen, other microbial bacterials etc., generates other lesions or rotten, sternly
Ghost image rings the fresh-keeping and wholesomeness of fruits and vegetables.
The purpose of the present invention is exactly to be carried to overcome the drawbacks described above of polyolefins perforated film appearance and insecurity
A kind of perfect solution supplied：There is embedded window by one kind（Hole）The laminated film technology of structure realizes film
Controllable release to steam does not make occur ponding in bag film；Simultaneously again will not make the fresh goods such as the fruits and vegetables of packaging with
External environment forms contact and reaches Keep the quality and freshness.
Invention content
The purpose of the present invention is existing polyolefins plastic film is overcome to be deposited on to the fresh goods such as fruit and vegetable packaging
The defects of and security risk, a kind of composite film material with embedded window structure and preparation method thereof is provided.It is such
Laminated film with embedded window structure is to moisture content and aqueous vapor with controllable adjustment effect.Suitable for water fruits and vegetables etc.
The fresh-keeping and storage of fresh goods, this laminated film with embedded window structure of the present invention, which is suitable for room temperature and low temperature, to be made
With not being suitable for applied at elevated temperature.
The purpose of the present invention is at least through the realization of one of following technical solution.
A kind of composite film material with embedded window structure, is combined by three-layer thin-film, wherein, middle layer is
Polyolefin（PO）The perforated film material of class；Upper and lower two layers are hydrophilic resin polyvinyl alcohol（PVA）Film is upper and lower two layers thin
Film forms the confining bed to middle layer perforated film hole；Intermediate polyolefin（PO）The penetrating hole of the perforated film material of class exists
Upper and lower double-layer films compound tense makes the polyvinyl alcohol of two layers of upper and lower layer（PVA）Material is embedded compound while and closes
The hole of interbed polyolefins perforated film, steam can be discharged by being formed has the window that can obstruct other gases again；It is described its
He includes one or more of oxygen, carbon dioxide by gas.
Ground is advanced optimized, the middle layer is polyolefin（PO）Class plastic film, polyolefin（PO）Class material is poly-
Ethylene（PE）Or polypropylene（PP）Material；The polyolefins film is inflation film, cast film or biaxially oriented film.
Advanced optimize ground, polyolefin（PO）Class material includes low density polyethylene (LDPE)（LDPE）, high density polyethylene (HDPE)
（HDPE）, linear low density polyethylene（LLDPE）, homopolypropylene or copolymer polypropylene material；
Advanced optimize ground, the polyvinyl alcohol that the laminated film uses（PVA）Material is the polyethylene of high alcoholysis degree
Alcohol（PVA）：I.e. 0599,1599,1799,2099,2299,2499.
Advanced optimize ground, the polyolefin（PO）Class thin-film material thickness is 5 μm ~ 100 μm, usual thickness 20
µ -- 40µm。
Ground is advanced optimized, two layer thickness are the laminated film up and down：3µm -- 20µm.
Advanced optimize ground, the polyolefin（PO）Film double-sided is handled by polarityization, and polarityization processing is corona
Processing or oxidation processes.
Advanced optimize ground, the polyolefin（PO）Multiple gaps of class thin-film material are uniformly distributed；The polyene
Hydrocarbon（PO）The hole that class film is beaten is permeability hole, and hole is the round through-hole without water chestnut, the aperture of punching for 0.1 ~
2.0mm；The polyolefin（PO）Class film perforating rate is that the ratio of the punching gross area/film gross area is 1% ~ 50%.
Advanced optimize ground, the polyvinyl alcohol that the laminated film uses（PVA）In filmogen containing glycerine as
The composite elasticizer of film, qualities of glycerin content are：5%~15%.
The method for preparing the composite film material with embedded window structure, specifically：The polyolefin of middle layer
（PO）Class material uses inflation film, cast film or biaxially oriented film, then obtains polyolefin after the processing of two-sided polarity（PO）
Class film, in polyolefin（PO）It is uniformly punched on class film；Using polyvinyl alcohol filmogen in polyolefin（PO）Class is thin
Film two sides is compounded to form the composite film material with embedded window structure；Polyvinyl alcohol filmogen is by polyvinyl alcohol
（PVA-1799）It is formed with plasticizer；The compound mode is cloth of coating-type composite membrane-forming or melting extrusion composite membrane-forming；It is described
Formula is two-sided while composite membrane-forming for roller coating formula or blade coating for cloth of coating-type composite membrane-forming；The melting extrusion composite membrane-forming is melting extrusion
Post-calendering formula is two-sided while composite membrane-forming.
This laminated film three-layer composite structure of the present invention, middle layer are common polyolefins film；In this film
The upper gas for forming permeability by punching penetrates window；Upper and lower composite bed is polyvinyl alcohol（PVA）Material is formed thin
Then film makes three layers of compound, upper and lower two layers hole embedded simultaneously and that closing intermediate polyolefin film layer is penetrating by complex technique
Hole and form controlled atmosphere window.For the present invention in order to obstruct other gases by window while can discharge steam, this window must
Must use it is a kind of can by steam but selection barrier is not carried out by the material of other gases.And polyvinyl alcohol（PVA）Make
The material very strong for a kind of hydrophily, film not only has oxygen excellent barrier property, while has again to steam
High-permeability（Such as in 23 DEG C of room temperature, PVA film is up to the transmitance of steam：147g H2O/m2/24hr；Note：Film both sides
Relative humidity is 50/70%）, so, laminated film of the invention selection polyvinyl alcohol（PVA）Up and down two as laminated film
Layer progress is compound, and the hole for making polyvinyl alcohol penetrating to intermediate polyolefins perforated film in laminated film carries out embedded envelope
It closes, forms the window can with vapor pervious but simultaneously with blocking oxygen.
It is this that there is the window formed by the embedded closing of permeable material vapor can not only pass through the variable of window area
To realize to the controllable and adjustable of steam burst size, and obstructed simultaneously through contact and exchange of the window with other gases.
Compared with prior art, the invention has the advantages that and technique effect：
Laminated film prepared by this application inventive technique has excellent barrier property to oxygen, carbon dioxide etc.；
Due to by Embedded composite construction, making the penetrating hole in polyolefins membrane middle layer all by polyethylene
Alcohol material film is closed, so not only having the performance of release steam, but also the property with gases such as blocking oxygen, carbon dioxide
Energy；
Compound due to polyvinyl alcohol film is two-sided be carried out at the same time, and be by the through-hole between intermediate thin film layer
Hole progress is embedded compound, and upper and lower two layers of film not only solves polyvinyl alcohol by the hole formation one of intermediate film
It is not easy the problem of compound, while also solves using the compound pollution of adhesive；
Due to making the penetrating hole progress that two-sided polyvinyl alcohol material passes through intermediate polyolefin embedded compound, completely enclose
Penetrating hole on polyolefin film and form using polyvinyl alcohol film as moisture vapor permeable but other impermeable other channels
（Window）；It realizes permeable oxygen impermeable selective gas and adjusts film.
This gas regulation laminated film oxygen impermeable with vapor pervious, adjusts channel（Window）It can be according to middle layer
It is controllable to realize that the polyolefin film punching gross area accounts for the ratio of the film gross area.
Description of the drawings
Fig. 1 is the three-decker schematic diagram of laminated film.
Fig. 2 is upper and lower two layers of polyethylene alcohol（PVA）The window schematic diagram formed after compound embedded middle layer.
Fig. 3 is coated with combination process schematic diagram for three layers of laminated film.
Fig. 4 is melting extrusion laminated film process schematic representation.
Specific embodiment
Make further specific detailed description, but implementation and the guarantor of the present invention to the present invention with reference to specific embodiment
It is without being limited thereto to protect range.
Such as Fig. 1, laminated film of the invention is three-layer composite structure：Middle layer is the perforated film 102 of polyolefins；On
The lower two layers film confining bed for moisture vapor permeable（101、102）；Penetrating hole in intermediate thin film layer is in upper and lower Film laminated
When, it is closed due to the insertion of upper and lower layer membrane materials and forms releasable steam and there is the window that can obstruct other gases
（Such as Fig. 2）.Middle layer be high-barrier steam polyolefine material film, while according to requirements punching formed it is a certain number of
Penetrating hole（Window）, as the channel to discharge moisture content.
Embodiment 1
Laminated film intermediate layer film：The bidirectional stretching polypropylene film that 20 μm of film thickness（BOPP）, at two-sided corona
After reason, uniformly punched on film, punching aperture be 0.3mm, punching rate（Punch the gross area/film gross area）：3%；It adopts
With the two-sided roller coating composite membrane-forming method of polyvinyl alcohol water solution.Polyvinyl alcohol water solution base material is polyvinyl alcohol（PVA-1799）、
Glycerine, water composition；Solution solid content is 23%, and wherein glycerol content is 10%.It is two-sided at the same with polyvinyl alcohol water solution roller coating apply
Cloth forms a film, as shown in Figure 3 through gas suspension dry composite.
This laminated film room temperature（23℃）Water permeability is as shown in table 1.
Table 1
Embodiment 2
Laminated film intermediate layer film：The LLDPE inflation films of 15 μm of film thickness, after two-sided sided corona treatment, in film
It is upper uniformly to be punched, punching aperture be 0.2mm, punching rate（Punch the gross area/film gross area）：5%；Using polyvinyl alcohol
The two-sided roller coating composite membrane-forming method of aqueous solution.Polyvinyl alcohol water solution base material is polyvinyl alcohol（PVA-2099）, glycerine, water group
It is 20% into, solution solid content, wherein glycerol content is 5%, two-sided while with the coating of polyvinyl alcohol water solution roller coating, through gas suspension
Dry composite forms a film, as shown in Figure 3.
This laminated film room temperature（23℃）Water permeability is as shown in table 2.
Table 2
Embodiment 3
Laminated film intermediate layer film：The tape casting polypropylene film of 30 μm of film thickness（OPP）, through two-sided sided corona treatment
Afterwards, uniformly punched on film, punching aperture be 0.1mm, punching rate（Punch the gross area/film gross area）：15%；It adopts
With the two-sided roller coating composite membrane-forming method of polyvinyl alcohol water solution.Polyvinyl alcohol water solution base material is polyvinyl alcohol（PVA-1799:
40%；PVA0599:60%）, glycerine, water composition, solution solid content is 26%, and wherein glycerol content is 15%, two-sided while with poly- second
Enol aqueous solution roller coating is coated with, and is formed a film through gas suspension dry composite.
This laminated film room temperature（23℃）Water permeability is as shown in table 3.
Table 3
Embodiment 4
Laminated film intermediate layer film：28 μm of bidirectional stretching polypropylene films of film thickness（BOPP）, through two-sided sided corona treatment
Afterwards, uniformly punched on film, punching aperture be 1.0mm, punching rate（Punch the gross area/film gross area）：20%；It adopts
Prolong composite membrane-forming with two roll-in of polyvinyl alcohol melting extrusion.Polyvinyl alcohol composite material film forming two-sided while with extrusion, poly- second
Enol material is：Polyvinyl alcohol（PVA0599：70%；PVA1599：30%）, the composite elasticizer, moulded using screw extruder
Change and carry out calendering composite membrane-forming into tri-roll press machine after squeezing out.Such as Fig. 4, A and B is respectively polyvinyl alcohol in figure（PVA）Melting
Extruder.
This laminated film room temperature（23℃）Water permeability such as table 4.
Table 4
Table 5
Embodiment 5
Laminated film intermediate layer film：The HDPE films of 12 μm of blow moldings of film thickness, after two-sided sided corona treatment, thin
Uniformly punched on film, punching aperture be 0.1mm, punching rate（Punch the gross area/film gross area）：12%；Using polyethylene
The two-sided roller coating composite membrane-forming method of alcohol solution.Polyvinyl alcohol water solution base material is polyvinyl alcohol（PVA-2299：20；PVA-
0599：80%）, glycerine, water composition, solution solid content be 21%, wherein glycerol content be 5%, it is two-sided while water-soluble with polyvinyl alcohol
Liquid roller coating is coated with, and is formed a film through gas suspension dry composite.This laminated film room temperature（23℃）Water permeability is as shown in table 5.
Claims (9)
1. a kind of composite film material with embedded window structure, it is characterised in that it is combined by three-layer thin-film, wherein,
Middle layer is polyolefin（PO）The perforated film material of class；Upper and lower two layers are hydrophilic resin polyvinyl alcohol（PVA）Film, on
Lower two-layer film forms the confining bed to middle layer perforated film hole；Intermediate polyolefin（PO）The perforated film material of class leads to
Open-work gap makes the polyvinyl alcohol of two layers of upper and lower layer in upper and lower double-layer films compound tense（PVA）Material is embedded in compound while
And the hole of middle layer polyolefins perforated film is closed, steam can be discharged by being formed has the window that can obstruct other gases again
Mouthful；Other described gases include one or more of oxygen, carbon dioxide；The polyvinyl alcohol（PVA）As laminated film
Upper and lower two layers of progress is compound, and the hole for making polyvinyl alcohol penetrating to intermediate polyolefins perforated film in laminated film carries out embedding
Enter formula closing, form the window can with vapor pervious but simultaneously with blocking oxygen；The middle layer is polyolefin（PO）Class
Plastic film, polyolefin（PO）Class material is polyethylene（PE）Or polypropylene（PP）Material；The polyolefins film is blows
Mould film, cast film or biaxially oriented film.
2. a kind of composite film material with embedded window structure according to claim 1, it is characterised in that：Polyene
Hydrocarbon（PO）Class material includes low density polyethylene (LDPE)（LDPE）, high density polyethylene (HDPE)（HDPE）, linear low density polyethylene
（LLDPE）, homopolypropylene or copolymer polypropylene material.
3. a kind of composite film material with embedded window structure according to claim 1, which is characterized in that described
The polyvinyl alcohol that uses of laminated film（PVA）Material is the polyvinyl alcohol of high alcoholysis degree（PVA）：I.e. 0599,1599,1799,
2099、2299、2499。
4. a kind of composite film material with embedded window structure according to claim 1, which is characterized in that described
Polyolefin（PO）Class thin-film material thickness is 5 μm ~ 100 μm.
5. a kind of composite film material with embedded window structure according to claim 1, which is characterized in that described
Laminated film up and down two layer thickness be：3µm -- 20µm.
6. a kind of composite film material with embedded window structure according to claim 1, which is characterized in that described
Polyolefin（PO）Film double-sided is handled by polarityization, and polarityization processing is sided corona treatment or oxidation processes.
7. a kind of composite film material with embedded window structure according to claim 1, which is characterized in that described
Polyolefin（PO）Multiple gaps of class thin-film material are uniformly distributed；The polyolefin（PO）The hole that class film is beaten is permeability
Hole, hole are the round through-hole without water chestnut, and the aperture of punching is 0.1 ~ 2.0mm；The polyolefin（PO）Class film
Punching rate is that the ratio of the punching gross area/film gross area is 1% ~ 50%.
8. a kind of composite film material with embedded window structure according to claim 1, which is characterized in that described
The polyvinyl alcohol that uses of laminated film（PVA）Containing glycerine as the plasticizer of film in material, qualities of glycerin content is：5%
~15%。
9. prepare the method for the composite film material described in any one of claim 1 ~ 8 with embedded window structure, feature
It is, the polyolefin of middle layer（PO）Class material uses inflation film, cast film or biaxially oriented film, then through two-sided polarity
Polyolefin is obtained after processing（PO）Class film, in polyolefin（PO）It is uniformly punched on class film；Using polyvinyl alcohol into membrane material
Material is in polyolefin（PO）Class film two sides is compounded to form the composite film material with embedded window structure；Polyvinyl alcohol forms a film
Material is made of polyvinyl alcohol and plasticizer；The compound mode is cloth of coating-type composite membrane-forming or melting extrusion composite membrane-forming；
Formula is two-sided while composite membrane-forming for roller coating formula or blade coating for the cloth of coating-type composite membrane-forming；The melting extrusion composite membrane-forming is melting
Squeeze out that post-calendering formula is two-sided while composite membrane-forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558503.5A CN105128414B (en) | 2015-09-06 | 2015-09-06 | A kind of composite film material with embedded window structure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558503.5A CN105128414B (en) | 2015-09-06 | 2015-09-06 | A kind of composite film material with embedded window structure and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105128414A CN105128414A (en) | 2015-12-09 |
| CN105128414B true CN105128414B (en) | 2018-06-26 |
Family
ID=54714145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510558503.5A Expired - Fee Related CN105128414B (en) | 2015-09-06 | 2015-09-06 | A kind of composite film material with embedded window structure and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105128414B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825937A (en) * | 2020-06-22 | 2020-10-27 | 中国石化长城能源化工（宁夏）有限公司 | Thermoplastic polyvinyl alcohol material and processing method thereof |
| CN112908583B (en) * | 2021-02-02 | 2022-08-30 | 扬州润友复合材料有限公司 | Composite insulating material plate and production method thereof |
| CN113367011A (en) * | 2021-06-03 | 2021-09-10 | 广州市玛澳新材料技术有限公司 | Biodegradable film and preparation process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201366814Y (en) * | 2009-03-25 | 2009-12-23 | 王炳阳 | Sound and heat insulation film |
-
2015
- 2015-09-06 CN CN201510558503.5A patent/CN105128414B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105128414A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105128414B (en) | A kind of composite film material with embedded window structure and preparation method thereof | |
| CN104803078B9 (en) | Multifunctional integrated freshness protection package and preparation method thereof | |
| CN106739358B (en) | A kind of fresh-keeping BOPP film of micropore and preparation method thereof | |
| KR20060001849A (en) | Film for packaging of fresh or fermentation food and container | |
| JPH02243324A (en) | Manufacture of sterilizable thermoplastic film | |
| JP2007186248A (en) | Packaging bag for vegetables and fruit, and vegetable/fruit package | |
| JP2006346888A (en) | Selective hygroscopic film and multilayered film | |
| CN105415829B (en) | A kind of openable cover polyethylene film, the high-barrier openable cover film and preparation method thereof comprising the film | |
| JP2010517881A (en) | Packaging film | |
| CA2627749C (en) | Multilayer foil and packaging made of this foil | |
| JP3230853B2 (en) | Fruit and Vegetable Freshness Packaging Film | |
| CN205044229U (en) | Composite films with embedded window structure | |
| JP2018016403A (en) | Packaging bag excellent in gas permeability and anti-fogging property preferable for holding freshness of garden stuff and package | |
| US3625794A (en) | Method of preparing laminated films while regulating moisture content | |
| CN110834451B (en) | Biaxially oriented polyethylene film BOPE composition, biaxially oriented polyethylene film and composite film and application thereof | |
| CN209141613U (en) | A kind of corona surface heat-sealing curtain coating polyethylene breathable film | |
| JP2009179330A (en) | Alcohol vaporization agent | |
| CN208760101U (en) | A kind of fruit-vegetable plastic wrap basement membrane | |
| JP2004345141A (en) | Packaging material, packaging bag comprising it and packaging material manufacturing method | |
| JPS6225101B2 (en) | ||
| CN207418655U (en) | A kind of casting films | |
| TW202200359A (en) | Laminated film materials and processes for manufacturing thereof and uses thereof | |
| CN112743952B (en) | Preparation method of deoxidizing agent breathable packaging film for food preservation | |
| JPH0852841A (en) | Hygroscopic packaging material and freshness-keeping packaging bag using the material | |
| CN205853511U (en) | A kind of novel PE casting films |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 |