CN219381867U

CN219381867U - Breathable film

Info

Publication number: CN219381867U
Application number: CN202223430594.9U
Authority: CN
Inventors: 吕达民
Original assignee: Quanzhou Lichang New Material Technology Co ltd
Current assignee: Quanzhou Lichang New Material Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-07-21
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses a breathable film, which structurally comprises a wear-resistant layer, an antibacterial breathable layer, a reinforcing layer and a polypropylene film layer which are arranged from top to bottom, wherein a first through hole which is obliquely arranged is formed in the wear-resistant layer, a second through hole which is obliquely arranged is formed in the antibacterial breathable layer, the first through hole is communicated with the second through hole, the reinforcing layer comprises transverse stretching wires, longitudinal stretching wires and reinforcing net wires, the transverse stretching wires and the longitudinal stretching wires are mutually connected and interweaved to form a rectangular grid shape, the reinforcing net wires are respectively and alternately connected with the transverse stretching wires and the longitudinal stretching wires to form an oblique net shape which is in cross braiding, air holes are formed among the transverse stretching wires, the longitudinal stretching wires and the reinforcing net wires, and a third through hole which is communicated with the air holes is formed in the polypropylene film layer. After the technical scheme is adopted, the breathable film provided by the utility model has good breathable effect and can greatly enhance the tearing resistance.

Description

Breathable film

Technical Field

The utility model relates to the technical field of films, in particular to a breathable film.

Background

Films made of polypropylene are used for packaging and as film coating layers, and are widely applied to the fields of foods, medicines, chemical industry and the like, wherein the food packaging proportion is the largest, such as beverage packaging, quick-frozen food packaging, steamed food packaging, snack food packaging and the like, and the products bring great convenience to life of people. The existing film is generally poor in air permeability, poor in tearing resistance, easy to stretch and damage, and shortened in service life.

Disclosure of Invention

In view of the above, the present utility model provides a breathable film.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a breathable film, its structure includes wearing layer, antibiotic ventilative layer, enhancement layer and the polypropylene film layer that from last to setting down, set up the first through-hole that the slope set up on the wearing layer, set up the second through-hole that the slope set up on the antibiotic ventilative layer, first through-hole is linked together with the second through-hole, the enhancement layer includes horizontal tensile silk, vertical tensile silk and reinforcing wire net twine, horizontal tensile silk and vertical tensile silk alternate to connect each other and interweave into rectangular latticed, reinforcing wire net twine alternates with horizontal tensile silk and vertical tensile silk respectively and forms alternately woven oblique net, form the bleeder vent between horizontal tensile silk, vertical tensile silk and the reinforcing wire net twine, set up the third through-hole with the bleeder vent intercommunication on the polypropylene film layer.

Preferably, the first through hole is inclined rightward.

Preferably, the second through hole is inclined leftwards, the upper opening of the second through hole is opposite to the lower opening of the first through hole, and the lower opening of the second through hole is opposite to the air holes of the reinforcing layer.

Preferably, the upper opening of the third through hole is opposite to the air holes of the reinforcing layer.

Preferably, the wear-resistant layer is made of polytetrafluoroethylene material.

Preferably, the antibacterial breathable layer comprises an antibacterial layer and a breathable layer arranged below the antibacterial layer, the antibacterial layer is a nano silver antibacterial layer, and the breathable layer is a PTFE film.

Preferably, the transversely drawn filaments and the longitudinally drawn filaments are nylon filaments.

Preferably, the reinforcing mesh wire is a glass fiber wire.

Preferably, the transverse cross sections of the first through hole, the second through hole and the third through hole are one of round, oval, triangular and square.

As can be seen from the above description of the structure of the present utility model, compared with the prior art, the present utility model has the following advantages:

1. according to the breathable film, the first through holes, the second through holes, the third through holes and the ventilation holes are formed, so that the breathable film is provided with the through hole structures from top to bottom, and a better ventilation effect can be achieved.

2. According to the breathable film, the reinforcing layer formed by combining the transverse stretching wires, the longitudinal stretching wires, the reinforcing net wires and the like is arranged, namely, under the interaction of the fixed connection of the transverse stretching wires, the longitudinal stretching wires and the reinforcing net wires, the breathable film is uniformly stressed, the reinforcing net wires are obliquely arranged in the breathable film at an angle of 45 degrees in a horizontal direction, so that the tearing resistance of the breathable film is enhanced, the transverse stretching wires, the longitudinal stretching wires and the reinforcing net wires are arranged in an interpenetrating manner, the friction performance of the breathable film is enhanced, the overall firmness among the transverse stretching wires, the longitudinal stretching wires and the reinforcing net wires is enhanced, the tearing resistance can be further enhanced, and the service life of the breathable film can be prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a breathable film according to the present utility model;

FIG. 2 is an internal structural view of an antimicrobial breathable layer of a breathable film of the present utility model;

FIG. 3 is an internal structural view of a reinforcing layer of a breathable film of the present utility model;

fig. 4 is an internal structural view of an antibacterial breathable layer of a breathable film of the present utility model.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Examples

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the breathable film structurally comprises a wear-resistant layer 1, an antibacterial breathable layer 2, a reinforcing layer 3 and a polypropylene film layer 4 which are arranged from top to bottom, wherein the wear-resistant layer 1, the antibacterial breathable layer 2, the reinforcing layer 3 and the polypropylene film layer 4 are fixed together in a bonding mode, a first through hole 1a which is obliquely arranged is formed in the wear-resistant layer 1, a second through hole 2a which is obliquely arranged is formed in the antibacterial breathable layer 2, the first through hole 1a is communicated with the second through hole 2a, the reinforcing layer 3 comprises transverse stretching wires 31, longitudinal stretching wires 32 and reinforcing net 33 wires, the transverse stretching wires 31 and the longitudinal stretching wires 32 are connected and interwoven into a rectangular grid shape, the reinforcing net 33 wires are respectively and alternately woven with the transverse stretching wires 31 and the longitudinal stretching wires 32 to form an oblique grid shape, ventilation holes 3a are formed between the transverse stretching wires 31, the longitudinal stretching wires 32 and the reinforcing net 33 wires, and a third through hole 4a which is communicated with the ventilation holes 3a is formed in the polypropylene film layer 4. By adopting the structure, through the arrangement of the first through hole 1a, the second through hole 2a, the third through hole 4a and the air holes 3a, the ventilation film is provided with the through hole structure from top to bottom so as to achieve better ventilation effect; through setting up the enhancement layer 3 that constitutes by combining such as horizontal stretch yarn 31, vertical stretch yarn 32 and reinforcing wire 33 line, namely under horizontal stretch yarn 31, vertical stretch yarn 32 and reinforcing wire 33 line fixed connection's interact for the ventilative film atress is even, and reinforcing wire 33 line is 45 slope of level and places in ventilative film, has strengthened ventilative film's tear resistance, and the frictional property that has been strengthened with the mutual interlude mode range between horizontal stretch yarn 31, vertical stretch yarn 32 and the reinforcing wire 33 line three has strengthened between them, has strengthened the whole fastness between the three, can further strengthen tear resistance.

As shown in fig. 1, 2, 3 and 4, the first through hole 1a is inclined rightward; the second through hole 2a is obliquely arranged leftwards, the upper opening of the second through hole 2a is opposite to the lower opening of the first through hole 1a, and the lower opening of the second through hole 2a is opposite to the air hole 3a of the reinforcing layer 3; the upper opening of the third through hole 4a is opposite to the ventilation hole 3a of the reinforcing layer 3; the lateral cross-sections of the first through-hole 1a, the second through-hole 2a, and the third through-hole 4a are one of circular, elliptical, triangular, and square. By adopting the structure, the first through hole 1a and the second through hole 2a are arranged in an inclined mode while ventilation is ensured, and external water can be prevented from penetrating into the ventilation film from the first through hole 1a to a certain extent, so that the ventilation film has certain waterproof property.

As shown in fig. 1, the wear-resistant layer 1 is made of polytetrafluoroethylene material. The antibacterial breathable layer 2 comprises an antibacterial layer 21 and a breathable layer 22 arranged below the antibacterial layer 21, wherein the antibacterial layer 21 is a nano silver antibacterial layer 21, and the breathable layer 22 is a PTFE film. With the structure, the wear-resistant layer 1 is made of polytetrafluoroethylene material, so that the breathable film has wear resistance; the antibacterial layer 21 is a nano silver antibacterial layer 21, so that the breathable film has antibacterial performance.

As shown in fig. 3, both the transversely drawn filaments 31 and the longitudinally drawn filaments 32 are nylon filaments; the reinforcement mesh 33 is a fiberglass thread. By adopting the structure, the transverse stretching wires 31 and the longitudinal stretching wires 32 are made of nylon fiber wires with better elasticity, namely the nylon fiber wires and the glass fiber wires have higher tensile strength and compressive strength, and the overall tensile strength of the breathable film is increased.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A breathable film, characterized by: the structure of the anti-bacterial breathable fabric comprises a wear-resistant layer, an anti-bacterial breathable layer, a reinforcing layer and a polypropylene film layer which are arranged from top to bottom, wherein a first through hole which is obliquely arranged is formed in the wear-resistant layer, a second through hole which is obliquely arranged is formed in the anti-bacterial breathable layer, the first through hole is communicated with the second through hole, the reinforcing layer comprises transverse stretching wires, longitudinal stretching wires and reinforcing net wires, the transverse stretching wires and the longitudinal stretching wires are mutually connected and interwoven into a rectangular grid shape, the reinforcing net wires are respectively and alternately woven with the transverse stretching wires and the longitudinal stretching wires to form oblique grids which are alternately woven, air holes are formed among the transverse stretching wires, the longitudinal stretching wires and the reinforcing net wires, and a third through hole communicated with the air holes is formed in the polypropylene film layer.

2. A breathable film according to claim 1, characterized in that: the first through holes are obliquely arranged right.

3. A breathable film according to claim 2, characterized in that: the second through holes are obliquely arranged leftwards, the upper openings of the second through holes are opposite to the lower openings of the first through holes, and the lower openings of the second through holes are opposite to the air holes of the reinforcing layer.

4. A breathable film according to claim 1, characterized in that: the upper opening of the third through hole is opposite to the air holes of the reinforcing layer.

5. A breathable film according to claim 1, characterized in that: the wear-resistant layer is made of polytetrafluoroethylene materials.

6. A breathable film according to claim 1, characterized in that: the antibacterial breathable layer comprises an antibacterial layer and a breathable layer arranged below the antibacterial layer, wherein the antibacterial layer is a nano silver antibacterial layer, and the breathable layer is a PTFE film.

7. A breathable film according to claim 1, characterized in that: the transverse drawn yarn and the longitudinal drawn yarn are nylon fiber yarns.

8. A breathable film according to claim 1, characterized in that: the reinforcing net wires are glass fiber wires.

9. A breathable film according to claim 1, characterized in that: the transverse cross sections of the first through hole, the second through hole and the third through hole are one of round, oval, triangular and square.