CN218174868U

CN218174868U - Wear-resistant biaxially oriented polypropylene (BOPP) film

Info

Publication number: CN218174868U
Application number: CN202222527607.8U
Authority: CN
Inventors: 徐开林; 仝国清; 冯鲁炳
Original assignee: Zhejiang Coastal Film Technology Co ltd
Current assignee: Zhejiang Coastal Film Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-30
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a wear-resisting type biaxial stretching BOPP film, including the main part membrane, rete in one side fixedly connected with of main part membrane, one side of the one side fixedly connected with wearing layer of rete in the main part membrane is kept away from, and one side activity that the main part membrane was kept away from to the wearing layer is pasted and is had separable rete, and the main part membrane is biaxial stretching BOPP rete, and interior rete is the PET rete. The main part membrane outside sets up the wearing layer, pastes separable rete on the wearing layer, before the film does not use, separable rete protects, during the use, separable rete tears, and interior rete one side is inboard, is close to food and packs to set up the interior rete and be convenient for and carry out the heat-seal with the wearing layer, improve the heat sealability of BOPP film, the wearing layer improves the surperficial wearability and the film strength of film, avoids film surface wear to break even.

Description

Wear-resistant biaxially-oriented BOPP film

Technical Field

The utility model relates to a BOPP film technical field specifically is wear-resisting type biaxial stretching BOPP film.

Background

The BOPP film is produced by that a melt of high molecular polypropylene is firstly made into a sheet or a thick film through a long and narrow machine head, then the sheet or the thick film is stretched in two vertical directions (longitudinal direction and transverse direction) simultaneously or step by step in a special stretching machine at a certain temperature and a set speed, and the film is made through proper cooling or heat treatment or special processing (such as corona, coating and the like).

SUMMERY OF THE UTILITY MODEL

The BOPP film aims to solve the problems that the existing BOPP film is single in component, after being packaged, the film is low in surface strength and easy to abrade due to friction of foreign objects, even the film is broken, and the packaging tightness is affected; an object of the utility model is to provide a wear-resisting type biaxial stretching BOPP film.

In order to solve the technical problem, the utility model adopts the following technical scheme: wear-resisting type biaxial stretching BOPP film, including the main part membrane, one side fixedly connected with inlayer layer of main part membrane, one side fixedly connected with wearing layer's that the inlayer layer is kept away from to the main part membrane one side, the wearing layer is kept away from one side activity of main part membrane and is pasted and have separable rete.

Preferably, the main body film is a biaxially oriented BOPP film layer, the inner film layer is a PET film layer, and the thickness of the inner film layer is 0.2-0.8mm.

Preferably, the wearing layer includes first wear-resisting net, the one side of rete is kept away from at the main part membrane to the inseparable laminating of first wear-resisting net, fixed coating forms the fixed bed on the first wear-resisting net, one side fixed connection second wear-resisting net that first wear-resisting net was kept away from to the fixed bed, the wear-resisting top layer of one side fixed connection of fixed bed is kept away from to the wear-resisting net of second.

Preferably, the first wear-resistant net and the second wear-resistant net are both of a net structure formed by weaving nano nickel wires, the fixing layer penetrates through meshes of the first wear-resistant net and is connected with the main body membrane, and the wear-resistant surface layer penetrates through meshes of the second wear-resistant net and is connected with the fixing layer.

Preferably, the fixed layer is EVA latex, and the thickness of fixed layer is 0.5-1mm, wear-resisting top layer is the PVC rete, and the thickness on wear-resisting top layer is 0.2-0.5mm, the fixed surface coating on wear-resisting top layer is equipped with silicone oil release coating.

Preferably, the two sides of the first wear-resistant net are attached to the two sides of the main body film and are bent to form first bending protrusions, the two sides of the second wear-resistant net are attached to the outer walls of the two sides of the wear-resistant surface layer and are bent to form second bending protrusions, and the first bending protrusions and the second bending protrusions are connected to form edge grinding resistance.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the outer side of the main body film is provided with the wear-resistant layer, the separable film layer is adhered to the wear-resistant layer and protected before the film is used, when the film is used, the separable film layer is torn off, one side of the inner film layer is the inner side and is close to food for packaging, and the inner film layer is arranged to be convenient for heat sealing with the wear-resistant layer, so that the heat sealing performance of the BOPP film is improved;

2. the first wear-resistant net is attached to the main body membrane, and then the first wear-resistant net is fixed through coating and curing of the fixing layer, and similarly, the second wear-resistant net is fixed through coating and curing of the wear-resistant surface layer, so that two layers of nano metal wires form a net structure to improve the strength of the film, and the nano metal net enables the wear-resistant layer to have good wear resistance and prolongs the service life of the film;

3. first wear-resisting net and the wear-resisting parcel of buckling of second stretch out the film both sides, form resistant edging, both improved the abrasion strength of film side, can be with leading out when the static charge that produces in the film contacts the external world through wear-resisting limit again, avoid packing deposition.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a main body membrane; 2. an inner membrane layer; 3. a wear layer; 31. a first abrasion resistant web; 32. a fixed layer; 33. a second abrasion resistant mesh; 34. a wear-resistant surface layer; 4. a separable membrane layer; 5. silicone oil release coating; 6. a first bending bulge; 7. a second bending bulge; 8. and (5) edge grinding resistance.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 embodiment is as follows: as shown in fig. 1-3, the utility model provides a wear-resisting type biaxial stretching BOPP film, including main part membrane 1, one side fixedly connected with rete 2 of main part membrane 1, one side fixedly connected with wearing layer 3 of rete 2 is kept away from to main part membrane 1, and one side activity that main part membrane 1 was kept away from to wearing layer 3 is pasted and is had separable rete 4, and main part membrane 1 is biaxial stretching BOPP rete, and rete 2 is the PET rete, and the thickness of rete 2 is 0.2-0.8mm.

Through the technical scheme, 1 outside of main part membrane sets up wearing layer 3, paste separable rete 4 on wearing layer 3, before the film does not use, separable rete 4 protects, during the use, separable rete 4 tears, 2 one sides of interior rete are inboard, it packs to be close to food, and set up interior rete 2 and be convenient for carry out the heat-seal with wearing layer 3, improve the heat sealability of BOPP film, wearing layer 3 improves the surperficial wearability and the film strength of film, avoid film surface wear to break even.

Further, wearing layer 3 includes first wear-resisting net 31, the one side of rete 2 is kept away from at main body membrane 1 to first wear-resisting net 31 closely laminating, fixed coating forms fixed layer 32 on first wear-resisting net 31, fixed layer 32 keeps away from one side fixed connection second wear-resisting net 33 of first wear-resisting net 31, the wear-resisting superficial layer 34 of one side fixed connection of fixed layer 32 is kept away from to second wear-resisting net 33, first wear-resisting net 31 and second wear-resisting net 33 are the nano nickel silk and weave the network structure that forms, fixed layer 32 permeates the mesh of first wear-resisting net 31 and connects main body membrane 1, wear-resisting superficial layer 34 permeates the mesh of second wear-resisting net 33 and connects fixed layer 32.

Through above-mentioned technical scheme, first wear-resisting net 31 laminating main part membrane 1, then coating and solidification through fixed layer 32 for first wear-resisting net 31 is fixed, and on the same hand, second wear-resisting net 33 is fixed through the coating solidification on wear-resisting top layer 34, thereby makes two-layer nano-wire form network structure and improves film strength, and nano-wire makes wearing layer 3 have good wear resistance and electric conductive property, can improve the wear-resisting and antistatic effect of film.

Further, the fixed layer 32 is EVA latex, and the thickness of fixed layer 32 is 0.5-1mm, wear-resisting top layer 34 is the PVC rete, and the thickness of wear-resisting top layer 34 is 0.2-0.5mm, the fixed surface coating on wear-resisting top layer 34 is equipped with silicon oil and leaves type coating 5, the both sides of first wear-resisting net 31 all laminate the both sides of main part membrane 1 and the bending forms first arch 6 of buckling, the both sides of second wear-resisting net 33 all laminate the both sides outer wall of wear-resisting top layer 34 and the bending forms second arch 7 of buckling, first arch 6 of buckling and second arch 7 of buckling are connected and are formed resistant edging 8.

Through above-mentioned technical scheme, first wear-resisting net 31 and the wear-resisting net 33 of second stretch out the film both sides and buckle the parcel, form resistant edging 8, both improved the abrasion resistance of film side, can be with exporting when the static electric charge that produces in the film contacts the external world through resistant edging 8 again.

The working principle is as follows: the main part membrane 1 outside sets up wearing layer 3, paste separable rete 4 on the wearing layer 3, before the film does not use, separable rete 4 protects, in using, separable rete 4 tears, interior rete 2 one side is the inboard, it packs to be close to food, and set up interior rete 2 and be convenient for carry out the heat-seal with wearing layer 3, improve the heat sealability of BOPP film, first wear-resisting net 31 laminating main part membrane 1, then coating and solidification through fixed bed 32, make first wear-resisting net 31 fixed, and the same is true, second wear-resisting net 33 is fixed through the coating solidification of wear-resisting top layer 34, thereby make two-layer nano-wire form network structure and improve film strength, and nano-wire makes wearing layer 3 have good wear resistance, improve film life, first wear-resisting net 31 and second wear-resisting net 33 stretch out the film both sides and buckle the parcel, form resistant edging 8, the wear resistance of film side has both been improved, can derive when the static electric charge that produces in the film contacts the external world through resistant 8 again.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. Wear-resisting type biaxial stretching BOPP film, including main part membrane (1), its characterized in that: one side fixedly connected with rete (2) of main part membrane (1), one side fixedly connected with wearing layer (3) of one side that interior rete (2) were kept away from to main part membrane (1), separable rete (4) have been pasted in the activity of one side that wearing layer (3) kept away from main part membrane (1).

2. A wear resistant biaxially oriented BOPP film according to claim 1, wherein the main body film (1) is a biaxially oriented BOPP film layer, the inner film layer (2) is a PET film layer, and the thickness of the inner film layer (2) is 0.2-0.8mm.

3. A wear-resistant biaxially oriented BOPP film according to claim 1, wherein the wear-resistant layer (3) comprises a first wear-resistant net (31), the first wear-resistant net (31) is closely attached to one side of the main body film (1) away from the inner film layer (2), the first wear-resistant net (31) is fixedly coated to form a fixed layer (32), one side of the fixed layer (32) away from the first wear-resistant net (31) is fixedly connected with a second wear-resistant net (33), and one side of the second wear-resistant net (33) away from the fixed layer (32) is fixedly connected with a wear-resistant surface layer (34).

4. A wear-resistant biaxially oriented BOPP film according to claim 3, wherein the first wear-resistant net (31) and the second wear-resistant net (33) are both formed by weaving nano nickel wires into a net structure, the fixing layer (32) penetrates through the meshes of the first wear-resistant net (31) and is connected with the main body film (1), and the wear-resistant surface layer (34) penetrates through the meshes of the second wear-resistant net (33) and is connected with the fixing layer (32).

5. The abrasion-resistant biaxially oriented BOPP film according to claim 4, wherein the fixing layer (32) is EVA latex, the thickness of the fixing layer (32) is 0.5-1mm, the abrasion-resistant surface layer (34) is a PVC film layer, the thickness of the abrasion-resistant surface layer (34) is 0.2-0.5mm, and the surface of the abrasion-resistant surface layer (34) is fixedly coated with the silicone oil release coating (5).

6. A wear-resistant biaxially oriented BOPP film according to claim 4, wherein both sides of the first wear-resistant net (31) are attached to both sides of the main body film (1) and bent to form first bent protrusions (6), both sides of the second wear-resistant net (33) are attached to both outer walls of the wear-resistant surface layer (34) and bent to form second bent protrusions (7), and the first bent protrusions (6) and the second bent protrusions (7) are connected to form the wear-resistant edge (8).