CN209904164U - Cross orthogonal composite film - Google Patents
Cross orthogonal composite film Download PDFInfo
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- CN209904164U CN209904164U CN201920357031.0U CN201920357031U CN209904164U CN 209904164 U CN209904164 U CN 209904164U CN 201920357031 U CN201920357031 U CN 201920357031U CN 209904164 U CN209904164 U CN 209904164U
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Abstract
The utility model discloses a cross orthogonal composite film, the composite film includes the higher longitudinal tensile membrane of longitudinal strength and the higher transverse tensile membrane of a transverse strength, longitudinal tensile membrane and transverse tensile membrane compound into cross orthogonal composite film through the cross quadrature, it has following technological effects 1, effectively increase the percentage elongation of composite film, the highest value can reach 300%, 2 effectively promote the tensile strength of composite film, reach 40 ~ 80MPa, 3, the production process need not the spiral and cuts, has reduced one process, 4, has reduced the production of rim charge, thereby the cost is reduced, 5, it produces the wide orthogonal composite film more easily, 6, the outward appearance is more level and more smooth, 7, the shortcoming that biaxial stretching membrane tearability is poor has been overcome.
Description
Technical Field
The utility model belongs to the technical field of the technique of complex film and specifically relates to a cross quadrature complex film, in particular to its complex film structure.
Background
The existing 45-degree cross film adopts a spiral slitting process, more rim charge can be generated in the production process, the cost is higher, the appearance flatness of a product is poor, and the tearing property of a biaxial stretching film is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cross quadrature complex film, it adopts the tensile membrane that longitudinal strength is higher and the tensile membrane that transverse strength is higher to form through the cross quadrature complex, and the intensity, percentage elongation and the thickness of quadrature complex film are 40 ~ 80MPa, 100 ~ 300%, 0.03 ~ 0.16mm, have overcome the defect and the not enough that exist among the prior art.
In order to realize the purpose, the technical scheme of the utility model is that: a cross orthogonal composite film comprises a longitudinal stretching film with higher longitudinal strength and a transverse stretching film with higher transverse strength, wherein the longitudinal stretching film and the transverse stretching film are compounded into the cross orthogonal composite film through cross orthogonal.
The utility model discloses a cross orthogonal composite film, which has the following technical effects that 1, the elongation of the composite film is effectively controlled, the highest value can reach 300%, 2, the tensile strength of the composite film is effectively improved, 40 ~ 80MPa is reached, 3, the production process does not need spiral cutting, one process is reduced, 4, compared with a cross film of a spiral cutting method, more combination modes are provided, less energy consumption is provided, less leftover materials are provided, and the productivity is improved, so that the cost is reduced, 5, the wide orthogonal composite film is easier to produce, 6, the appearance is smoother, 7, the defect that a bidirectional stretching film is poor in tearing property is overcome, 8, the tearing resistance is strong, the tearing force of a notch without a cutting opening is larger than 25N, the tearing force of a nail rod is larger than 90N, the product is wide in application range, and the composite film can be applied to water proofing, seepage proofing, packaging.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the composite structure of the longitudinally stretched film and the transversely stretched film of the present invention.
FIG. 3 is a cross-shaped orthogonal composite film forming process diagram.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a cross quadrature complex film, the complex film includes the higher vertical tensile membrane 1 of longitudinal strength and the higher transverse tension membrane 2 of a transverse strength, and vertical tensile membrane 1 and transverse tension membrane 2 compound into cross quadrature complex film 3 through the cross quadrature.
In specific implementation, the longitudinally stretched film 1 and the transversely stretched film 2 are made of PE, PP, PET, PA, and are extruded in a single layer or in multiple layers.
In specific implementation, the longitudinally stretched film 1 and the transversely stretched film 2 are multilayer co-extruded films of combinations of PE, PP, PET and PA.
In specific practice, the thickness of the longitudinally stretched film 1 was 0.015 ~ 0.08.08 mm.
In particular implementation, the thickness of the transversely stretched film 2 is 0.015 ~ 0.08.08 mm.
In specific implementation, the longitudinal stretching film 1 and the transverse stretching film 2 are compounded through water-based acrylic glue or double-component PU glue without solvent.
In specific implementation, the longitudinal stretching film 1 and the transverse stretching film 2 are compounded into a whole through a laminating compounding process or a thermal compounding process.
In specific implementation, the cross-shaped orthogonal composite film can be formed by compounding a layer of longitudinally stretched film 1 and a layer of transversely stretched film 2, can be formed by compounding a layer of longitudinally stretched film 1, a layer of transversely stretched film 2 and a layer of longitudinally stretched film 1, and can be formed by compounding four layers of longitudinally stretched film 1, a layer of transversely stretched film 2, a layer of longitudinally stretched film 1 and a layer of transversely stretched film 2.
In particular, the high strength film in the machine direction may be a blown film, or a cast film, such as an MDO process film, having a machine direction strength of generally 2 to 8 times the cross direction strength, e.g., 20 ~ 30MPa in the cross direction and 40 ~ 240MPa in the machine direction.
In specific implementation, when the combination of PE + PET, PE + PA, PP + PET and PP + PA appears, the barrier property of the composite film is enhanced; when the PET film is a combination of PE + PET and PP + PET, the film has better stiffness.
In specific implementation, the longitudinal stretching film comprises a film blowing method cylindrical film stretching film and a longitudinal strong stretching transverse weak stretching film of a casting method biaxial stretching machine; the transversely stretched film comprises a film with a high blow-up ratio in the transverse direction of a film blowing method and a film with strong transverse direction stretching in the longitudinal direction of a cast biaxial stretching method.
The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (7)
1. A cross-shaped orthogonal composite membrane is characterized in that: the composite film comprises a longitudinal stretching film (1) with high longitudinal strength and a transverse stretching film (2) with high transverse strength, wherein the longitudinal stretching film (1) and the transverse stretching film (2) are compounded into a cross orthogonal composite film (3) through cross orthogonality.
2. A cross-hatch composite membrane according to claim 1, characterised in that: the longitudinal stretching film (1) and the transverse stretching film (2) are made of PE, PP, PET and PA materials, and the materials are extruded in a single layer or in multiple layers.
3. A cross-hatch composite membrane according to claim 1, characterised in that: the longitudinal stretching film (1) and the transverse stretching film (2) are multilayer co-extrusion films formed by combining PE, PP, PET and PA.
4. The cross-crossed composite film according to claim 1, wherein said longitudinally stretched film (1) has a thickness of 0.015 ~ 0.08.08 mm.
5. A cross-hatched composite film according to claim 1, characterised in that the thickness of the transversely stretched film (2) is 0.015 ~ 0.08.08 mm.
6. A cross-hatch composite membrane according to claim 1, characterised in that: the longitudinal stretching film (1) and the transverse stretching film (2) are compounded through water-based acrylic glue or double-component PU glue without solvent.
7. A cross-hatch composite membrane according to claim 1, characterised in that: and the longitudinal stretching film (1) and the transverse stretching film (2) are compounded by film lamination and thermal compounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357031.0U CN209904164U (en) | 2019-03-20 | 2019-03-20 | Cross orthogonal composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357031.0U CN209904164U (en) | 2019-03-20 | 2019-03-20 | Cross orthogonal composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209904164U true CN209904164U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920357031.0U Active CN209904164U (en) | 2019-03-20 | 2019-03-20 | Cross orthogonal composite film |
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| CN (1) | CN209904164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071182A (en) * | 2021-03-15 | 2022-09-20 | 大连塑研塑料科技开发有限公司 | Processing and forming method for high-strength plastic film plate |
-
2019
- 2019-03-20 CN CN201920357031.0U patent/CN209904164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071182A (en) * | 2021-03-15 | 2022-09-20 | 大连塑研塑料科技开发有限公司 | Processing and forming method for high-strength plastic film plate |
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