CN212021855U

CN212021855U - PE film

Info

Publication number: CN212021855U
Application number: CN202020309234.5U
Authority: CN
Inventors: 王岗厂
Original assignee: Dongguan Security Medical Packaging Technology Co Ltd
Current assignee: Dongguan Security Medical Packaging Technology Co Ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-27
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a PE film, including the diaphragm body, cut off, be equipped with a plurality of walls on the diaphragm body, cut off and form by the machine suppression, and adjacent distance between cutting off is the same, the diaphragm body includes shaping functional layer, middle functional layer, heat-seal layer, and shaping functional layer, middle functional layer, heat-seal layer set gradually from bottom to top, and shaping functional layer and middle functional layer adopt the mode of hot pressing bonding to link together, and the mode that heat-seal layer and middle functional layer adopted hot pressing bonding links together, the shaping functional layer includes ultra-low density polyethylene layer, medium density polyethylene layer, and ultra-low density polyethylene layer lies in medium density polyethylene layer below, ultra-low density polyethylene layer and medium density polyethylene layer hot pressing bonding connection, middle functional layer includes thermoplastic elastomer layer, metallocene linear low density polyethylene layer. The utility model has reasonable design; the thermoplastic elastomer layer improves the puncture resistance of the PE film.

Description

PE film

Technical Field

The utility model relates to a PE membrane.

Background

Due to the increase of labor cost and the requirement of improving social production efficiency, automatic packaging equipment in the food industry and the medical appliance industry is increasingly popularized, a large number of PE films are required in the automatic packaging process, and the conventional PE films are co-extruded by materials with different properties during production, so that the materials are very troublesome to recover, and the energy conservation and the environmental protection are not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PE membrane to solve above-mentioned technical problem.

In order to realize the purpose, the utility model adopts the following technical scheme:

a PE film comprises a film body and partitions, wherein the film body is provided with a plurality of partitions, the partitions are formed by machine pressing, the distance between every two adjacent partitions is the same, the film body comprises a forming functional layer, a middle functional layer and a heat sealing layer, the forming functional layer, the middle functional layer and the heat sealing layer are sequentially arranged from bottom to top, the forming functional layer and the middle functional layer are connected together in a hot-pressing bonding mode, the heat sealing layer and the middle functional layer are connected together in a hot-pressing bonding mode, the forming functional layer comprises an ultralow-density polyethylene layer and a medium-density polyethylene layer, the ultralow-density polyethylene layer is positioned below the medium-density polyethylene layer, the ultralow-density polyethylene layer is connected with the medium-density polyethylene layer in a hot-pressing bonding mode, the middle functional layer comprises a thermoplastic elastomer layer, a metallocene linear low-density polyethylene layer, and the thermoplastic, the metallocene linear low density polyethylene layer is thermally compression bonded to the thermoplastic elastomer layer.

Preferably, the thickness of the forming functional layer is 0.5mm, the thickness of the middle functional layer is 0.8mm, and the thickness of the heat sealing layer is 0.3 mm.

Preferably, the bottom of said thermoplastic elastomer layer is provided with corrugations to increase the elasticity of the thermoplastic elastomer layer.

Preferably, the heat sealing layer is made of metallocene linear low density polyethylene and linear low density polyethylene.

Compared with the prior art, the utility model has the advantages of it is following: the utility model has reasonable design; the PE film is made of polyethylene materials during production, so that materials in the machine adjusting process can be recycled, granulated and reused, and the cost is reduced; the PE film produced by polyethylene is used for multilayer coextrusion blown film or multilayer coextrusion casting, and special bonding materials are not needed for bonding different material layers, so that the cost is reduced; the thermoplastic elastomer layer and the wave patterns at the bottom improve the puncture resistance of the PE film, and the design of the partition is easy to break the PE film.

Drawings

Fig. 1 is a schematic view of the PE film of the present invention.

Fig. 2 is a cross-sectional view of the PE film of the present invention.

Detailed Description

The invention is explained in further detail below with reference to the figures and the embodiments.

As shown in figures 1-2, a PE film comprises a film body 1 and partitions 2, wherein a plurality of partitions 2 are arranged on the film body 1, the partitions 2 are formed by machine pressing, the distance between every two adjacent partitions 2 is the same, the film body 1 comprises a forming functional layer 3, a middle functional layer 4 and a heat sealing layer 5, the forming functional layer 3, the middle functional layer 4 and the heat sealing layer 5 are sequentially arranged from bottom to top, the forming functional layer 3 is connected with the middle functional layer 4 in a hot-pressing bonding mode, the heat sealing layer 5 is connected with the middle functional layer 4 in a hot-pressing bonding mode, the forming functional layer 3 comprises an ultralow-density polyethylene layer 6 and a medium-density polyethylene layer 7, the ultralow-density polyethylene layer 6 is positioned below the medium-density polyethylene layer 7, the ultralow-density polyethylene layer 6 is connected with the medium-density polyethylene layer 7 in a hot-pressing bonding mode, and the middle functional layer 4 comprises a thermoplastic, The thermoplastic elastomer comprises a metallocene linear low-density polyethylene layer 9, a thermoplastic elastomer layer 8 and a medium-density polyethylene layer 7, wherein the metallocene linear low-density polyethylene layer 9 is bonded with the thermoplastic elastomer layer 8 in a hot pressing mode, the thickness of a forming functional layer 3 is 0.5mm, the thickness of a middle functional layer 4 is 0.8mm, the thickness of a heat sealing layer 5 is 0.3mm, the bottom of the thermoplastic elastomer layer 8 is provided with raised grains 10, so that the elasticity of the thermoplastic elastomer layer 8 is improved, and the heat sealing layer 5 is made of metallocene linear low-density polyethylene and linear low-density polyethylene.

The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations to the embodiments will still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.

Claims

1. A PE film comprises a film body (1) and partitions (2), and is characterized in that the film body (1) is provided with a plurality of partitions (2), the partitions (2) are formed by machine pressing, the distances between adjacent partitions (2) are the same, the film body (1) comprises a forming functional layer (3), a middle functional layer (4) and a heat sealing layer (5), the forming functional layer (3), the middle functional layer (4) and the heat sealing layer (5) are sequentially arranged from bottom to top, the forming functional layer (3) and the middle functional layer (4) are connected together in a hot-press bonding mode, the heat sealing layer (5) and the middle functional layer (4) are connected together in a hot-press bonding mode, the forming functional layer (3) comprises an ultralow-density polyethylene layer (6) and a medium-density polyethylene layer (7), and the ultralow-density polyethylene layer (6) is positioned below the medium-density polyethylene layer (7), the ultra-low density polyethylene layer (6) is connected with the medium density polyethylene layer (7) in a hot-pressing bonding mode, the middle functional layer (4) comprises a thermoplastic elastomer layer (8), a metallocene linear low density polyethylene layer (9), the thermoplastic elastomer layer (8) is connected with the medium density polyethylene layer (7), and the metallocene linear low density polyethylene layer (9) is connected with the thermoplastic elastomer layer (8) in a hot-pressing bonding mode.

2. A PE film according to claim 1, characterised in that the thickness of the shaped functional layer (3) is 0.5mm, the thickness of the intermediate functional layer (4) is 0.8mm and the thickness of the heat-seal layer (5) is 0.3 mm.

3. A PE film according to claim 1, characterised in that the bottom of said thermoplastic elastomer layer (8) is provided with undulations (10) to increase the elasticity of the thermoplastic elastomer layer (8).

4. A PE film according to claim 1, characterised in that said heat-sealing layer (5) is made of metallocene linear low density polyethylene and linear low density polyethylene.