CN205615079U - CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing - Google Patents
CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing Download PDFInfo
- Publication number
- CN205615079U CN205615079U CN201620215561.8U CN201620215561U CN205615079U CN 205615079 U CN205615079 U CN 205615079U CN 201620215561 U CN201620215561 U CN 201620215561U CN 205615079 U CN205615079 U CN 205615079U
- Authority
- CN
- China
- Prior art keywords
- layer
- cpp
- polyethylene
- film
- curtain coating
- 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
Landscapes
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing, this kind of CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing be on each the compound one deck polyethylene layer that increases of supporting layer both sides that comprises the two -layer polypropylene layer, improves the laminated structure of supporting layer in the former membrane, because the thin film mold of PE has the characteristics that tensile elongation is big, tensile strength is low, with the deflection that can reduce the film supporting layer after PP layer and the PE layer complex, the CPP film of producing also has tensile characteristic, can carry out biaxial stretching to good physical stability and high mechanical strength have, and PE possesses good transparency, glossiness and heat sealability through the curtain coating after, can further strengthen CPP film original high transparent and full gloss characteristic through compound after, laminates more easily with the heat -seal layer moreover, and addding the one deck layer of aluminizing again at the upper surface on the second polyethylene layer of the supporting layer the superiors, to the film processing of metallizing, make the film surface have metallic luster.
Description
Technical field
This utility model relates to a kind of thin film, particularly relates to a kind of CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated.
Background technology
Casting films is a kind of tensionless winkler foundation by the quenching production of melt sialorrhea, nondirectional cast film, there are monolayer curtain coating and multi-layer co-extruded curtain coating two ways, it is characterized in that speed of production is fast, yield is high, and the transparency of thin film, glossiness, thickness evenness etc. are outstanding.Multi-layer co-extruded casting films generally comprises hot sealing layer, supporting layer, corona layer three-decker, relatively monofilm width in the selection of material, can individually select to meet the material of every aspect requirement, gives thin film with different functions and purposes.Wherein hot sealing layer heat sealing to be carried out processing, it is desirable to the fusing point of material is relatively low, hot melt to be got well, and heat-sealing temperature wants width, sealing to want easily；Thin film is played a supporting role by supporting layer, increases the very property of thin film；Corona layer to carry out printing or metalized, it is desirable to having the surface tension of appropriateness, the interpolation to auxiliary agent should have strict restriction.
CPP thin film (cast polypropylene film) is a kind of thin film the more commonly used in coextrusion casting film, has fineness and the definition of excellence, and production cost is lower, yield is higher.But, CPP thin film is produced by curtain coating extrusion process, this production technology makes CPP thin film only there is certain orientation in longitudinal direction (MD) direction, belong to non-oriented film, making CPP thin film lack the physical stability and high mechanical properties being had as the biaxial stretching film of BOPP thin film (bidirectional stretching polypropylene film) etc, air-tightness is the most poor.
CPP thin film both can be widely used in the packaging of food, medical supplies, textile, flower, article of everyday use as the basement membrane of other composites；And the consumption demand growing in order to meet consumer, some Producers can also carry out metalized to CPP thin film, makes thin film with beautiful metallic luster, packaging can be made more high-grade afterwards by metallization (the most vacuum aluminum-coated).
Summary of the invention
Problem to be solved in the utility model is to provide a kind of CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated, this thin film not only possesses traditional CPP thin film high transparency, high glaze, the thickness characteristic such as uniformly, and there is the distinctive physical stability of biaxial stretching film, high mechanical properties and high-air-tightness, and there is good metallic luster.The technical scheme used is as follows:
A kind of CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated, including hot sealing layer, supporting layer and corona layer, hot sealing layer is attached to the lower surface of supporting layer, and corona layer is arranged on the upper surface of supporting layer, it is characterised in that: also include aluminium coated；Described supporting layer includes the first polyethylene (PE) layer, the first polypropylene (PP) layer, the second polypropylene (PP) layer and the second polyethylene (PE) layer fitted the most successively；Described hot sealing layer is attached to the lower surface of the first polyethylene (PE) layer, fitted by the first adhesive layer between upper surface and the lower surface of the first polypropylene (PP) layer of the first polyethylene (PE) layer, fitted by the second adhesive layer between upper surface and the lower surface of the second polypropylene (PP) layer of the first polypropylene (PP) layer, fitted by the 3rd adhesive layer between upper surface and the lower surface of the second polyethylene (PE) layer of the second polypropylene (PP) layer；Aluminium coated is arranged on the upper surface of the second polyethylene (PE) layer, and described corona layer is arranged on the upper surface of aluminium coated.
Each compound increase layer of polyethylene (PE) layer in supporting layer both sides being made up of two layers of polypropylene (PP) layer in the multi-layer co-extruded casting films of original CPP, improves the bonding structure of supporting layer in the multi-layer co-extruded casting films of original CPP；Owing to PE thin film has the advantages that tensile elongation is big, tensile strength is low, PP layer and PE layer can be reduced after compound the deflection of film support layer, the CPP thin film produced also possesses the tensile properties similar to BOPP thin film, biaxial tension can be carried out, and there is good physical stability and high mechanical properties；And PE possesses good transparency, glossiness and heat sealability after curtain coating, the original high transparency of CPP thin film and high gloss characteristics can be further enhanced after compound, and be easier to laminating with hot sealing layer；And setting up one layer of aluminium coated again at the upper surface of the second polyethylene (PE) layer of the supporting layer the superiors, thin film is carried out metalized, makes film surface with metallic luster.
As preferred version of the present utility model, the lower surface of described first polyethylene (PE) layer, the first polypropylene (PP) layer, the second polypropylene (PP) layer and the second polyethylene (PE) layer is respectively provided with coarse structure.Lower surface as the first polyethylene (PE) layer, the first polypropylene (PP) layer, the second polypropylene (PP) layer and the second polyethylene (PE) layer of supporting layer is respectively provided with coarse structure, it is i.e. that the lower surface to the first polyethylene (PE) layer, the first polypropylene (PP) layer, the second polypropylene (PP) layer and the second polyethylene (PE) layer carries out coarse process, can increase and the contact area of corresponding adhesive layer, make laminating effect more preferable, make combination between layers tightr.
As the further preferred version of this utility model, described first polyethylene (PE) layer, the upper surface of the second polyethylene (PE) layer are respectively provided with coarse structure.First polyethylene (PE) layer, the upper surface of the second polyethylene (PE) layer are respectively provided with coarse structure, it is i.e. that the upper surface to the first polyethylene (PE) layer, the second polyethylene (PE) layer carries out coarse process, further enhance the first polyethylene (PE) layer, the second polyethylene (PE) laminating effect between layer and adjacent layer, make combination between layers tightr.
As this utility model further preferred version, described coarse structure is made up of a plurality of stria being parallel to each other.
As this utility model further preferred version, described coarse structure is made up of a plurality of webbed stria that intersects.
As this utility model further preferred version, described coarse structure is made up of multiple salient points.
The stria use and be uniformly arranged salient point, being parallel to each other or crossing webbed stria, do the surface of PP layer or PE layer roughening and process, it is possible to making binding face more uniform, laminating effect is more preferable.
As preferred version of the present utility model, also include biaxial tension nylon (PA) layer；Biaxial tension nylon (PA) laminating is combined in the upper surface of described second polyethylene (PE) layer, and aluminium coated is arranged on the upper surface of biaxial tension nylon (PA) layer.PA thin film has being folded without breaking intensity, impact strength, frictional strength, feature that bending strength is high, and has preferable barrier properties for gases；The upper surface that biaxial tension PA layer is compounded in the second polyethylene (PE) layer can strengthen this utility model CPP five-layer co-squeezing curtain coating biaxial tension film strength, and thermostability, tolerance to cold and oil resistivity can also be improved, it is possible to it is more broadly applicable in food packaging industry.
This utility model compared with prior art, has the advantage that
Each compound increase layer of polyethylene (PE) layer in supporting layer both sides being made up of two layers of polypropylene (PP) layer in the multi-layer co-extruded casting films of original CPP, improves the bonding structure of supporting layer in the multi-layer co-extruded casting films of original CPP；Owing to PE thin film has the advantages that tensile elongation is big, tensile strength is low, PP layer and PE layer can be reduced after compound the deflection of film support layer, the CPP thin film produced also possesses the tensile properties similar to BOPP thin film, biaxial tension can be carried out, and there is good physical stability and high mechanical properties；And PE possesses good transparency, glossiness and heat sealability after curtain coating, the original high transparency of CPP thin film and high gloss characteristics can be further enhanced after compound, and be easier to laminating with hot sealing layer；And setting up one layer of aluminium coated again at the upper surface of the second polyethylene (PE) layer of the supporting layer the superiors, thin film is carried out metalized, makes film surface with metallic luster.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is this utility model each layer coarse structure schematic diagram, is followed successively by parallel stripes structure, cross network striated structure, bump structure from left to right；
Fig. 3 is the structural representation of this utility model embodiment two.
Detailed description of the invention
It is described further with preferred implementation of the present utility model below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1, a kind of CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated, including hot sealing layer 1, supporting layer 2, aluminium coated 3 and corona layer 4, hot sealing layer 1 is attached to the lower surface of supporting layer 2, aluminium coated 3 is arranged on the upper surface of supporting layer 2, and corona layer 4 is arranged on the upper surface of aluminium coated 3；Described supporting layer 2 includes the first polyethylene (PE) layer the 201, first polypropylene (PP) layer the 202, second polypropylene (PP) layer 203 and the second polyethylene (PE) layer 204 fitted the most successively；Described hot sealing layer 1 is attached to the lower surface of the first polyethylene (PE) layer 201, fitted by the first adhesive layer 501 between upper surface and the lower surface of the first polypropylene (PP) layer 202 of the first polyethylene (PE) layer 201, fitted by the second adhesive layer 502 between upper surface and the lower surface of the second polypropylene (PP) layer 203 of the first polypropylene (PP) layer 202, fitted by the 3rd adhesive layer 503 between upper surface and the lower surface of the second polyethylene (PE) layer 204 of the second polypropylene (PP) layer 203, aluminium coated 3 is arranged on the upper surface of the second polyethylene (PE) layer 204；The lower surface of the first polyethylene (PE) layer 201 and the upper and lower surface of the second polyethylene (PE) layer 204, the first polypropylene (PP) layer 202 and the second polypropylene (PP) layer 203 is provided with the stria being parallel to each other as coarse structure.
Each compound increase layer of polyethylene (PE) layer 201,204 in supporting layer both sides being made up of two layers of polypropylene (PP) layer 202,203 in the multi-layer co-extruded casting films of original CPP, improves the bonding structure of supporting layer 2 in the multi-layer co-extruded casting films of original CPP；Owing to PE thin film has the advantages that tensile elongation is big, tensile strength is low, PP layer and PE layer can be reduced after compound the deflection of film support layer 2, the CPP thin film produced also possesses the tensile properties similar to BOPP thin film, biaxial tension can be carried out, and there is good physical stability and high mechanical properties；And PE possesses good transparency, glossiness and heat sealability after curtain coating, the original high transparency of CPP thin film and high gloss characteristics can be further enhanced after compound, and be easier to laminating with hot sealing layer 1；And setting up one layer of aluminium coated 3 again at the upper surface of the second polyethylene (PE) layer 204 of supporting layer 2 the superiors, thin film is carried out metalized, makes film surface with metallic luster.
It addition, employing is uniformly arranged the stria being parallel to each other, and the surface of PP layer or PE layer is done roughening process, it is possible to increase and the contact area of corresponding adhesive layer, making binding face more uniform, laminating effect is more preferable.
In other examples, described coarse structure can use other frame modes, as in figure 2 it is shown, be followed successively by parallel stripes structure, cross network striated structure, bump structure from left to right.
Embodiment two
As it is shown on figure 3, in the case of other parts are all identical with embodiment one, its difference is: also include biaxial tension nylon (PA) layer 6；Biaxial tension nylon (PA) layer 6 is fitted in the upper surface of described second polyethylene (PE) layer 204, and aluminium coated 3 is arranged on the upper surface of biaxial tension nylon (PA) layer 6.
PA thin film has being folded without breaking intensity, impact strength, frictional strength, feature that bending strength is high, and has preferable barrier properties for gases；The upper surface that biaxial tension PA layer 6 is compounded in the second polyethylene (PE) layer 204 can strengthen this utility model CPP five-layer co-squeezing curtain coating biaxial tension film strength, and thermostability, tolerance to cold and oil resistivity can also be improved, it is possible to it is more broadly applicable in food packaging industry.
In addition; it should be noted that the specific embodiment described in this specification, its each several part title etc. can be different; all equivalences done according to structure, feature and the principle described in this utility model inventional idea or simple change, be all included in the protection domain of this utility model patent.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field; without departing from structure of the present utility model or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (7)
1. having a CPP five-layer co-squeezing curtain coating biaxial stretching film for aluminium coated, including hot sealing layer, supporting layer and corona layer, hot sealing layer is attached to the lower surface of supporting layer, and corona layer is arranged on the upper surface of supporting layer, it is characterised in that: also include aluminium coated；Described supporting layer includes the first polyethylene layer, the first polypropylene layer, the second polypropylene layer and the second polyethylene layer fitted the most successively；Described hot sealing layer is attached to the lower surface of the first polyethylene layer, fitted by the first adhesive layer between upper surface and the lower surface of the first polypropylene layer of the first polyethylene layer, fitted by the second adhesive layer between upper surface and the lower surface of the second polypropylene layer of the first polypropylene layer, fitted by the 3rd adhesive layer between upper surface and the lower surface of the second polyethylene layer of the second polypropylene layer；Aluminium coated is arranged on the upper surface of the second polyethylene layer, and described corona layer is arranged on the upper surface of aluminium coated.
2. according to the CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated described in claim 1, it is characterised in that: the lower surface of described first polyethylene layer, the first polypropylene layer, the second polypropylene layer and the second polyethylene layer is respectively provided with coarse structure.
3. according to the CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated described in claim 2, it is characterised in that: described first polyethylene layer, the upper surface of the second polyethylene layer are respectively provided with coarse structure.
4. according to the CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated described in Claims 2 or 3, it is characterised in that: described coarse structure is made up of a plurality of stria being parallel to each other.
5. according to the CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated described in Claims 2 or 3, it is characterised in that: described coarse structure is made up of a plurality of webbed stria that intersects.
6. according to the CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated described in Claims 2 or 3, it is characterised in that: described coarse structure is made up of multiple salient points.
7. according to the CPP five-layer co-squeezing curtain coating biaxial stretching film with aluminium coated described in claim 1, it is characterised in that: also include biaxial tension nylon layer；Biaxial tension nylon laminating is combined in the upper surface of described second polyethylene layer, and aluminium coated is arranged on the upper surface of biaxial tension nylon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620215561.8U CN205615079U (en) | 2016-03-21 | 2016-03-21 | CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620215561.8U CN205615079U (en) | 2016-03-21 | 2016-03-21 | CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205615079U true CN205615079U (en) | 2016-10-05 |
Family
ID=57032225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620215561.8U Expired - Fee Related CN205615079U (en) | 2016-03-21 | 2016-03-21 | CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205615079U (en) |
-
2016
- 2016-03-21 CN CN201620215561.8U patent/CN205615079U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109292237B (en) | Multilayer laminated film assembly and stand-up pouch | |
| CN103434237B (en) | A kind of easy-tear type dry type composite sheet and production method thereof | |
| CN105619983A (en) | Transfer type laser impressing polyester film and preparing method thereof | |
| KR20170013262A (en) | Highly decorated tube, especially highly decorated laminate tube | |
| CN205615079U (en) | CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing | |
| CN205615131U (en) | CPP five -layer co -extrusion curtain coating biaxial stretching film with layer of aluminizing | |
| TW564220B (en) | Shrinkable iridescent film | |
| CN205615116U (en) | CPP four layers coextrusion casting biaxial stretching film with layer of aluminizing | |
| CN205615119U (en) | CPP five -layer co -extrusion curtain coating biaxial stretching film | |
| CN205615118U (en) | CPP five -layer co -extrusion curtain coating biaxial stretching film | |
| CN205615128U (en) | CPP three -layer coextrusion casting biaxial stretching film with layer of aluminizing | |
| CN205615127U (en) | CPP four layers coextrusion casting biaxial stretching film with layer of aluminizing | |
| CN201494070U (en) | High-strength BOPP heat-seal aluminum laminated film | |
| CN204914810U (en) | Novel polyethylene film | |
| CN209063628U (en) | A kind of high glaze composite sheet and high glaze hose | |
| US6555242B2 (en) | Longitudinally stretched, vacuum vapor coated packaging films | |
| CN210047169U (en) | Five-layer oxygen-blocking composite film and packaging box | |
| CN204210119U (en) | Monosodium glutamate automatic packaging machine composite membrane | |
| CN210062291U (en) | Multilayer hinders oxygen complex film and packing carton | |
| CN210062290U (en) | High-toughness embossed co-extrusion packaging film and embossed packaging bag | |
| CN208101262U (en) | A kind of improved PP TYPE | |
| CN205615129U (en) | CPP four layers coextrusion casting biaxial stretching film | |
| TWI580576B (en) | Heterogeneous composites and products thereof | |
| CN201614086U (en) | Five-layer high-matt light extinction film | |
| CN208543897U (en) | A kind of dilated food packaging film of ultra-low temperature heat sealing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20180321 |