CN221090181U

CN221090181U - BOPP film with high surface tension

Info

Publication number: CN221090181U
Application number: CN202322635770.0U
Authority: CN
Inventors: 陈维兴; 张建丰
Original assignee: Wenzhou Tenglong New Material Co ltd
Current assignee: Wenzhou Tenglong New Material Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-06-07
Anticipated expiration: 2033-09-27

Abstract

The utility model discloses a high-surface tension BOPP film, which relates to the technical field of BOPP films and comprises a film base layer, a first transparent layer, an anti-adhesion layer, a supporting layer, an antistatic layer and a high-molecular polymer layer, wherein the first transparent layer is arranged on the upper layer of the film base layer, the anti-adhesion layer is arranged on the upper layer of the first transparent layer, the supporting layer is arranged on the upper layer of the anti-adhesion layer, the antistatic layer is arranged on the upper layer of the supporting layer, the second transparent layer is arranged on the upper layer of the antistatic layer, the high-molecular polymer layer is arranged on the upper layer of the second transparent layer, the aluminized film on the surface of the high-molecular polymer layer can have excellent barrier performance, and can effectively isolate external moisture and oxygen, and the wet tension of the film surface cannot be attenuated due to high-temperature and high-humidity climatic conditions.

Description

BOPP film with high surface tension

Technical Field

The utility model relates to the technical field of BOPP films, in particular to a high-surface-tension BOPP film.

Background

Through searching, the patent with the Chinese patent grant number of CN207954916U discloses a BOPP film for enhancing surface tension, which belongs to the technical field of BOPP films and is formed by sequentially compounding an upper transparent surface layer, a supporting core layer and a lower transparent surface layer, wherein the upper surface of the upper transparent surface layer is provided with a surface tension modification layer, an antistatic layer is arranged between the supporting core layer and the upper transparent surface layer, an anti-adhesion layer is arranged between the supporting core layer and the lower transparent surface layer, the surface tension modification layer is a copolymerized polypropylene layer mixed with a special surface tension modification material, the thickness is 2 mu m, the supporting core layer is a homo-polypropylene layer with the isotacticity of more than 95%, and the thickness is 10 mu m. According to the utility model, a six-layer composite structure is formed by coextrusion, and all layers are mutually complemented, so that the BOPP film can effectively improve the surface flatness and the surface tension of the film on the premise of ensuring the inherent physical properties, and the surface flatness and the surface tension are at least 4 dyne values higher than those of the conventional general product.

The prior art has the following defects:

1. Although the film can effectively improve the surface tension of the film, external factors are ignored, when the surface tension of the BOPP film is changed under different environmental temperatures, the BOPP film can not effectively reduce the influence of the temperature in the outdoor environment on the surface tension of the BOPP film;

2. The film and the existing BOPP film can be used for modifying the plasticizer by using ultraviolet rays in an outdoor environment for a long time, so that the film is embrittled, and the service life of the film is reduced.

Disclosure of Invention

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a BOPP film with high surface tension, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a high surface tension BOPP film, includes film basic unit, first transparent layer, antiseized glutinous layer, supporting layer, antistatic backing and polymer layer, film basic unit upper strata is equipped with first transparent layer, first transparent layer upper strata is equipped with antiseized glutinous layer, antiseized glutinous layer upper strata is equipped with the supporting layer, the supporting layer upper strata is equipped with antistatic backing, antistatic backing upper strata is equipped with the second transparent layer, the second transparent layer upper strata is equipped with polymer layer.

Preferably, the high molecular polymer layer is a polypropylene copolymer layer mixed with a special surface tension modifier, and the thickness of the high molecular polymer layer is 2 mu m.

Preferably, an aluminized film is attached to the surface of the high polymer layer.

Preferably, the supporting layer is made of a high-molecular polymer material, and the high-molecular polymer material is one or more of polyvinyl alcohol compounds or acrylic copolymers.

Preferably, the second transparent layer is made of PVC material embedded with ultraviolet absorbing particles.

Preferably, the first transparent layer is made of a common BOPP transparent material, and can be a common homo-polypropylene or a mixture of various brands of common homo-polypropylene.

(III) beneficial effects

The utility model provides a BOPP film with high surface tension. The beneficial effects are as follows:

(1) According to the BOPP film with high surface tension, through the mutual combination of all the components, the aluminized film on the surface of the high-molecular polymer layer can have excellent barrier property, can effectively isolate external moisture and oxygen, and the surface wet tension of the film cannot be attenuated due to high-temperature and high-humidity climatic conditions.

(2) According to the BOPP film with high surface tension, the PVC material of the ultraviolet absorbing particles in the second transparent layer can prevent the plasticizer from being deteriorated by ultraviolet rays, so that the film is embrittled, and the service life of the film can be prolonged.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model.

In the figure, 1, a film base layer; 2. a first transparent layer; 3. an anti-sticking layer; 4. a support layer; 5. an antistatic layer; 6. a second transparent layer 6; 7. a high molecular polymer layer.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the embodiment of the utility model provides a technical scheme: the utility model provides a high surface tension BOPP film, includes film basic unit 1, first transparent layer 2, antiseized glutinous layer 3, supporting layer 4, antistatic layer 5 and polymer layer 7, film basic unit 1 upper strata is equipped with first transparent layer 2, first transparent layer 2 upper strata is equipped with antiseized glutinous layer 3, antiseized glutinous layer 3 upper strata is equipped with supporting layer 4, supporting layer 4 upper strata is equipped with antistatic layer 5, antistatic layer 5 upper strata is equipped with second transparent layer 6, second transparent layer 6 upper strata is equipped with polymer layer 7, through multilayer composite structure, makes the film have higher surface tension, simultaneously can prolong the life of this film through polymer layer 7 and the aluminized film on surface.

The high polymer layer 7 is a copolymer polypropylene layer mixed with special surface tension modification materials, the thickness of the high polymer layer 7 is 2 mu m, and the copolymer polypropylene has the advantages of high strength, good heat resistance, good dimensional stability, excellent low-temperature toughness and the like.

The aluminized film is attached to the surface of the high polymer layer 7, the aluminized film can effectively improve the refractive index of light, meanwhile, the aluminized film not only can shade light, but also has excellent barrier property, can effectively isolate external moisture and oxygen, the surface wet tension of the film cannot be attenuated due to high-temperature and high-humidity climatic conditions, and the aluminized film is excellent in water resistance and solvent resistance, so that the service life of the film can be greatly prolonged.

The supporting layer 4 is made of a high-molecular polymer material, the high-molecular polymer material is one or more of polyvinyl alcohol compounds or acrylic copolymers, and the polyvinyl alcohol has no toxicity, good biocompatibility and good mechanical properties.

The second transparent layer 6 is made of a PVC material embedded with ultraviolet absorbing particles, and the plasticizer is prevented from being deteriorated by ultraviolet rays through the PVC material of the ultraviolet absorbing particles inside the second transparent layer 6, so that the film is embrittled, and the service life of the film is prolonged.

The first transparent layer 2 is made of a common BOPP transparent material, and can be common homo-polypropylene or a mixture of various brands of common homo-polypropylene, which is beneficial to further prolonging the service life of the film.

When the ultraviolet-absorbing plastic film is used, the film has higher surface tension through the multilayer composite structure, meanwhile, the service life of the film can be prolonged through the high-molecular polymer layer 7 and the aluminum-plated film on the surface, the aluminum-plated film can effectively improve the refractive index of light, meanwhile, the film can shield light, has excellent barrier property, can effectively isolate external moisture and oxygen, the surface wet tension of the film cannot be attenuated due to high-temperature and high-humidity climatic conditions, and the water resistance and the solvent resistance are excellent.

The utility model relates to a film base layer 1; 2. a first transparent layer; 3. an anti-sticking layer; 4. a support layer; 5. an antistatic layer; 6. a second transparent layer 6; 7. the high polymer layer and the components are all general standard components or components known to the person skilled in the art, and the structures and principles of the high polymer layer and the components are all known to the person skilled in the art through technical manuals or through routine experimental methods.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A high surface tension BOPP film characterized by: including film basic unit (1), first transparent layer (2), antiseized glutinous layer (3), supporting layer (4), antistatic backing (5) and macromolecular polymer layer (7), film basic unit (1) upper strata is equipped with first transparent layer (2), first transparent layer (2) upper strata is equipped with antiseized glutinous layer (3), antiseized glutinous layer (3) upper strata is equipped with supporting layer (4), supporting layer (4) upper strata is equipped with antistatic backing (5), antistatic backing (5) upper strata is equipped with second transparent layer (6), second transparent layer (6) upper strata is equipped with macromolecular polymer layer (7), macromolecular polymer layer (7) surface mounting has the aluminizing film.