CN216639357U - Stretch-proof polyethylene film - Google Patents
Stretch-proof polyethylene film Download PDFInfo
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- CN216639357U CN216639357U CN202120771641.2U CN202120771641U CN216639357U CN 216639357 U CN216639357 U CN 216639357U CN 202120771641 U CN202120771641 U CN 202120771641U CN 216639357 U CN216639357 U CN 216639357U
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- film
- density polyethylene
- polyethylene film
- resistant
- warp
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Abstract
The utility model relates to the technical field of plastic films, in particular to a stretch-proof polyethylene film which comprises a negative Poisson ratio grid film, a first adhesive layer, a second adhesive layer, a first low-density polyethylene film and a second low-density polyethylene film, wherein the negative Poisson ratio grid film is provided with warp film strips and weft film strips, the warp film strips and the weft film strips are thermally welded into a swastika shape, a stain-resistant and scratch-resistant film is thermally bonded on the upper surface of the first low-density polyethylene film, a PE film-coated glue layer is coated on the lower surface of the second low-density polyethylene film, and release paper is bonded on the lower surface of the PE film-coated glue layer. The utility model improves the shear modulus, the notch resistance, the fracture resistance and the resilience toughness of the film by utilizing the auxetic characteristic of the negative Poisson ratio grid film, has simple manufacturing process, protects the surface by the stain-resistant scratch-resistant film, beautifies the appearance and prolongs the service life.
Description
Technical Field
The utility model relates to the technical field of plastic films, in particular to a stretch-proof polyethylene film.
Background
Polyethylene film refers to a film produced from polyethylene particles. The polyethylene film has moisture resistance and small moisture permeability. According to the difference of the manufacturing method and the control means, products with different properties such as low-density, medium-density and high-density polyethylene, crosslinked polyethylene and the like can be manufactured. The polyethylene film has the characteristics of moisture resistance and small moisture permeability, but the existing polyethylene film for packaging needs to be improved in rebound resilience and tensile strength.
The utility model discloses a utility model patent with publication number CN204845064U discloses an even tensile high density polyethylene complex film, and it includes upper polyethylene film, lower floor's polyethylene film and reinforcing fiber net, the vertical mutually perpendicular of the vertical and lower floor's polyethylene film of upper polyethylene film, reinforcing fiber net's weft and the horizontal parallel of upper polyethylene film, reinforcing fiber net's warp and the horizontal parallel of lower floor's polyethylene film. The utility model discloses a through the distribution of strict overall arrangement upper strata high density polyethylene membrane, lower floor's polyethylene membrane and reinforcing fiber net, reach and optimize the membrane forming structure, but manufacturing process is complicated, is difficult to popularize and apply on a large scale.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a stretch-proof polyethylene film that solves the problems set forth in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a stretch-proof polyethylene film, is including negative poisson ratio net film, negative poisson ratio net film has warp film strip and weft film strip, warp film strip with weft film strip heat-sealing becomes swastika, the upper surface coating of negative poisson ratio net film has first bonding glue film, just the lower surface coating of negative poisson ratio net film has the second to bond the glue film, the upper surface of first bonding glue film bonds and has first low density polyethylene film, the upper surface thermal bonding of first low density polyethylene film has resistant dirty anti-scratch film, the lower surface bonding of second bonding glue film has second low density polyethylene film, the lower surface coating of second low density polyethylene film has PE tectorial membrane glue layer, the lower surface bonding of PE tectorial membrane glue layer has from type paper.
Optionally, the size of the warp film strip is the same as that of the weft film strip, and the warp film strip and the weft film strip are extruded by thermoplastic polyurethane elastomer rubber to form a film; the thickness of the warp thin film strip is 120-200 microns.
Optionally, the first low density polyethylene film and the second low density polyethylene film have the same size and are formed by blowing blow molding grade polyethylene particles through a blow molding machine.
Compared with the prior art, the utility model provides a stretch-proof polyethylene film, which has the following beneficial effects: the utility model improves the shear modulus, the notch resistance, the fracture resistance and the resilience toughness of the film by utilizing the auxetic characteristic of the negative Poisson ratio grid film, has simple manufacturing process, protects the surface by the stain-resistant scratch-resistant film, beautifies the appearance and prolongs the service life.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic plane structure diagram of the negative Poisson ratio grid film of the present invention.
In the figure: 1. a negative poisson's ratio mesh film; 2. warp thread film strips; 3. a weft film strip; 4. a first adhesive layer; 5. a second adhesive layer; 6. a first low density polyethylene film; 7. a stain resistant, scratch resistant film; 8. a second low density polyethylene film; 9. PE is coated with a glue layer; 10. and (4) release paper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1, the utility model provides a stretch-proof polyethylene film, which comprises a negative poisson ratio grid film 1, wherein a first adhesive layer 4 is coated on the upper surface of the negative poisson ratio grid film 1, a second adhesive layer 5 is coated on the lower surface of the negative poisson ratio grid film 1, and the first adhesive layer 4 and the second adhesive layer 5 are both made of ultraviolet curing adhesive and coated on the negative poisson ratio grid film 1 in a screen printing manner. The upper surface of the first adhesive layer 4 is adhered with a first low-density polyethylene film 6, the upper surface of the first low-density polyethylene film 6 is thermally adhered with a stain-resistant scratch-resistant film 7, the stain-resistant scratch-resistant film 7 is selected from a biaxially oriented polyethylene terephthalate film, the upper surface of the biaxially oriented polyethylene terephthalate film is coated with an acrylate coating, and the acrylate coating is a ultraviolet light curing coating which can rapidly generate physical and chemical changes in a short time after being irradiated by ultraviolet light, so that surface protection is provided for the biaxially oriented polyethylene terephthalate film, and the stain-resistant scratch-resistant function is realized. The lower surface of the second adhesive layer 5 is adhered with a second low-density polyethylene film 8, the size of the first low-density polyethylene film 6 is the same as that of the second low-density polyethylene film 8, and the first low-density polyethylene film and the second low-density polyethylene film are both formed by blowing blow molding polyethylene particles through a blow molding machine. The lower surface of the second low-density polyethylene film 8 is coated with a PE film-coated glue layer 9, and the lower surface of the PE film-coated glue layer 9 is bonded with release paper 10.
Referring to fig. 2, the negative poisson's ratio grid film 1 has warp film strips 2 and weft film strips 3, and the warp film strips 2 and the weft film strips 3 are thermally welded to form swastika. Wherein the thickness of the warp film strip 2 is 180 micrometers. The size of the warp thin film strips 2 is the same as that of the weft thin film strips 3, and the warp thin film strips and the weft thin film strips are all extruded into a film by thermoplastic polyurethane elastomer rubber. The warp film strips 2 and the weft film strips 3 are uniformly staggered and thermally welded to form a negative Poisson ratio grid on a two-dimensional plane, and the grid has the characteristic of expansion.
The release paper 10 is torn, the polyethylene film in the utility model can be attached to the surfaces of products such as metal, ceramic, plastic and the like, the polyethylene film improves the shear modulus, the notch resistance, the fracture resistance and the resilience toughness of the film by utilizing the auxetic characteristic of the negative Poisson's ratio grid film 1, and the surface protection is carried out by the stain-resistant scratch-resistant film 7, so that the appearance is beautified, and the service life is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A stretch-resistant polyethylene film characterized by: including negative poisson ratio net film (1), negative poisson ratio net film (1) has warp film strip (2) and weft film strip (3), warp film strip (2) with weft film strip (3) heat-sealing becomes swastika, the upper surface of negative poisson ratio net film (1) is coated with first adhesive glue film (4), just the lower surface coating of negative poisson ratio net film (1) has second adhesive glue film (5), the upper surface bonding of first adhesive glue film (4) has first low density polyethylene film (6), the upper surface heat bonding of first low density polyethylene film (6) has resistant dirty anti-scratch film (7), the lower surface bonding of second adhesive glue film (5) has second low density polyethylene film (8), the lower surface coating of second low density polyethylene film (8) has PE tectorial membrane glue layer (9), and release paper (10) is adhered to the lower surface of the PE film-coated glue layer (9).
2. The stretch-resistant polyethylene film according to claim 1, wherein: the size of the warp thin film strips (2) is the same as that of the weft thin film strips (3), and the warp thin film strips and the weft thin film strips are extruded by thermoplastic polyurethane elastomer rubber to form a film; the thickness of the warp thin film strip (2) is 120-200 micrometers.
3. The stretch-resistant polyethylene film according to claim 1, wherein: the first low density polyethylene film (6) and the second low density polyethylene film (8) have the same size and are each formed by blowing blow molding grade polyethylene pellets through a blow molding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120771641.2U CN216639357U (en) | 2021-04-15 | 2021-04-15 | Stretch-proof polyethylene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120771641.2U CN216639357U (en) | 2021-04-15 | 2021-04-15 | Stretch-proof polyethylene film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216639357U true CN216639357U (en) | 2022-05-31 |
Family
ID=81723502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120771641.2U Active CN216639357U (en) | 2021-04-15 | 2021-04-15 | Stretch-proof polyethylene film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216639357U (en) |
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2021
- 2021-04-15 CN CN202120771641.2U patent/CN216639357U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230901 Address after: No. 13 Juxiang Road, Wujin Economic Development Zone, Changzhou City, Jiangsu Province, 213000 Patentee after: Changzhou Huajian Pharmaceutical Packaging Material Co.,Ltd. Address before: 213100 No. 21, West Taihu Avenue, economic development zone, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU QIGANG NEW MATERIAL Co.,Ltd. |