High-permeability water-locking protective film

Abstract

The utility model discloses a high-permeability water-locking protective film which comprises a base layer protective film, a release protective film is adhered to the upper portion of the base layer protective film, an adhesive layer is adhered between the base layer protective film and the release protective film, a splitting protrusion is integrally formed on one side of the release protective film, and a breathable water-locking layer is adhered to the lower portion of the base layer protective film. The breathable water-locking layer is composed of a breathable layer, a water-locking protection layer, a waterproof protection layer and an isolation sleeve layer, the breathable layer, the water-locking protection layer and the waterproof protection layer are sequentially bonded to the lower portion of the base layer protection film from top to bottom, the isolation sleeve layer is connected to the outer side of the breathable layer, the outer side of the water-locking protection layer and the outer side of the waterproof protection layer in a sleeving mode, and an electrostatic protection layer is bonded to the lower portion of the isolation sleeve layer. According to the high-permeability water-locking protective film, the isolation sleeve layer, the water-locking protective layer and the water-permeable protective layer are arranged, so that corrosive liquid on the outside or the outer side of a solid object is prevented from entering the protective film, corrosion to the solid object is reduced, and the actual protective effect of the high-permeability water-locking protective film is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-permeability protective films, and in particular relates to a high-permeability water-locking protective film. Background Art

[0002] A protective film is a type of film that is attached to the outside of a physical object to provide wear-resistant, peep-proof and waterproof protection for the physical object. With the popularization of digital products such as mobile phones, protective film has become a general term for screen protective films. Currently, common protective film materials include PVC, PET, AR, OPP and PE.

[0003] Protective films can be divided into two categories according to their properties: adhesive-coated protective films and self-adhesive protective films. The types of adhesives for adhesive-coated protective films mainly include solvent-based rubber adhesives, solvent-based acrylic adhesives, and water-based acrylic adhesives. Self-adhesive protective films are generally produced by co-extrusion, and their self-adhesive layers are generally made of EVA, ultra-low-density polyethylene or polyolefin plastic resins. They have gradually become the mainstream of the market due to their advantages of no residual glue, stable adhesion and low cost of use.

[0004] As we all know, when the protective film is attached to the physical object to be protected, bubbles may appear inside due to the influence of the material, the shape of the physical object and the proficiency of film application. In order to ensure the protective effect and aesthetic effect of the protective film, the protective film needs to have a certain self-exhaust function. At the same time, in order to reduce the drying and cracking of the protective film, the protective film needs to have a certain moisture-locking function.

[0005] As the Chinese utility model patent with patent number: CN216330626U, the patent discloses a highly breathable water-locking protective film, including a protective film body, a protective layer bonded to the top surface of the protective film body, a highly breathable water-locking functional layer at the bottom of the protective layer, an antibacterial layer at the bottom of the highly breathable water-locking functional layer, an antistatic layer at the bottom of the antibacterial layer, an acid-base solvent-resistant protective layer at the bottom of the antistatic layer, a wear-resistant layer at the bottom of the acid-base solvent-resistant protective layer, and the wear-resistant layer is the outermost layer of the protective film body, the highly breathable water-locking functional layer includes a highly breathable water-locking polyethylene layer, a highly breathable waterproof polyethylene layer and a highly breathable water-permeable polyethylene layer, a highly breathable waterproof polyethylene layer at the bottom of the highly breathable water-locking polyethylene layer, a highly breathable water-permeable polyethylene layer at the bottom of the highly breathable waterproof polyethylene layer, and a highly breathable water-permeable polyethylene layer, and the highly breathable water-permeable polyethylene layer is a metallocene linear low-density highly breathable polyethylene film with added calcium carbonate masterbatch. This highly breathable water-locking protective film has a simple structure, relatively complete functions, is easy to implement, and is worthy of popularization and use.

[0006] Although the highly breathable and water-locking protective film disclosed in this patent has good breathability and water-locking functions, the protective performance of this type of highly breathable and water-locking protective film is poor. During use, it is easy to lock corrosive liquids from the outside world or the outside of physical objects into the protective film, causing the protective film to cause certain corrosion to the physical objects, making the actual protective effect of the highly breathable and water-locking protective film poor.

[0007] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0008] The utility model aims to provide a high-permeability water-locking protective film, which can reduce the situation of locking corrosive liquids and ensure the actual protective effect of the high-permeability water-locking protective film.

[0009] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0010] A highly permeable and water-locking protective film comprises a base protective film, a release protective film is adhered to the top of the base protective film, a breathable and water-locking layer is bonded to the bottom of the base protective film, the breathable and water-locking layer is composed of a breathable layer, a water-locking protective layer, a waterproof protective layer and an isolation sleeve layer, the breathable layer, the water-locking protective layer and the waterproof protective layer are sequentially bonded to the bottom of the base protective film from top to bottom, the isolation sleeve layer is sleeved on the outside of the breathable layer, the water-locking protective layer and the waterproof protective layer, and an electrostatic protective layer is bonded to the bottom of the isolation sleeve layer.

[0011] In one or more embodiments of the utility model, an adhesive layer is bonded between the base protective film and the release protective film, and the upper surface of the base protective film and the lower surface of the release protective film are bonded through the adhesive layer. The base protective film and the release protective film are connected through the adhesive layer, and at the same time, it is convenient to adhere to the outer surface of the protected physical object through the adhesive layer.

[0012] In one or more embodiments of the utility model, a splitting protrusion is integrally formed on one side of the release protective film. The provision of the splitting protrusion facilitates the tearing and separation of the release protective film, thereby simplifying the convenience of separating the release protective film. An anti-slip hole is drilled on the splitting protrusion. By drilling the anti-slip hole on the splitting protrusion, the possibility of the splitting protrusion slipping during the tearing and separation process is reduced, thereby improving the stability of the separation process of the release protective film.

[0013] In one or more embodiments of the utility model, the breathable layer is a porous polyethylene film. The breathable layer provides breathable protection to the base protective film, so that the bubbles generated between the base protective film and the surface of the physical object can be self-exhausted, thereby improving the convenience and aesthetics of attaching the protective film. The water-locking protective layer is a breathable water-locking polyethylene film. The water-locking protective layer provides waterproof protection to the base protective film.

[0014] In one or more embodiments of the utility model, a hydrophilic base layer is attached to both sides of the water-locking protective layer. By arranging the hydrophilic base layer on both sides of the water-locking protective layer, it is convenient to lock water for the breathable layer and reduce the cracking of the protective film due to drying during use.

[0015] In one or more embodiments of the utility model, a hydrophobic base layer is attached above the waterproof protective layer, and the upper surface of the hydrophobic base layer is bonded to the lower surface of the hydrophilic base layer. By arranging the hydrophobic base layer on the surface of the waterproof protective layer, the waterproof protection effect of the waterproof protective layer is improved.

[0016] In one or more embodiments of the utility model, the waterproof protective layer is a breathable waterproof polyethylene film, which facilitates waterproof protection of the base protective film through the waterproof protective layer, thereby improving the waterproof protection effect of the protective film.

[0017] In one or more embodiments of the utility model, the electrostatic protection layer has multiple groups of conductive fiber filaments and antibacterial silver filaments crisscrossedly distributed inside, and the multiple groups of conductive fiber filaments and antibacterial silver filaments cooperate to form an antibacterial and antistatic grid. The multiple groups of conductive fiber filaments and antibacterial silver filaments are crisscrossedly distributed, so as to improve the antibacterial and antistatic properties of the electrostatic protection layer.

[0018] Compared with the prior art, the utility model reduces the entry of corrosive liquids from the outside or the outside of physical objects into the protective film by setting an isolation sleeve layer, a water-locking protective layer and a water-permeable protective layer, thereby reducing the corrosion of physical objects and improving the actual protective effect of the highly permeable water-locking protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A three-dimensional diagram of a highly permeable water-locking protective film in one embodiment of the utility model;

[0021] Figure 2 It is a side cross-sectional view of a high-permeability water-locking protective film in one embodiment of the utility model;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0023] Figure 4 It is a partial structural cross-sectional view of a high-permeability water-locking protective film in one embodiment of the utility model.

[0024] Description of main reference numerals:

[0025] 1-base protective film, 2-release protective film, 3-breathable and water-locking layer, 301-breathable layer, 302-water-locking protective layer, 303-waterproof protective layer, 304-isolation sleeve layer, 4-static protective layer, 5-adhesive layer, 6-split protrusions, 7-anti-dropping holes, 8-hydrophilic base layer, 9-hydrophobic base layer, 10-conductive fiber yarn, 11-antibacterial silver yarn. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] like Figures 1 to 4 As shown, a high-permeability water-locking protective film in one embodiment of the utility model includes a base protective film 1, and a release protective film 2 is adhered on the top of the base protective film 1.

[0028] like Figures 2 to 3 As shown, an adhesive layer 5 is bonded between the base protective film 1 and the release protective film 2, and the upper surface of the base protective film 1 and the lower surface of the release protective film 2 are bonded through the adhesive layer 5. The base protective film 1 and the release protective film 2 are connected through the adhesive layer 5, and at the same time, it is convenient to adhere to the outer surface of the protected physical object through the adhesive layer 5.

[0029] like Figure 4 As shown, a splitting protrusion 6 is integrally formed on one side of the release protective film 2. The provision of the splitting protrusion 6 facilitates the tearing and separation process of the release protective film 2, thereby simplifying the convenience of separating the release protective film 2.

[0030] Specifically, an anti-drop hole 7 is bored on the splitting protrusion 6. By boring the anti-drop hole 7 on the splitting protrusion 6, the slipping of the splitting protrusion 6 during the tearing and separation process is reduced, and the stability of the separation process of the release protective film 2 is improved.

[0031] Preferably, the release protective film 2 and the splitting protrusion 6 are made of synthetic resin material.

[0032] like Figures 2 to 3 As shown, a breathable water-locking layer 3 is bonded to the bottom of the base protective film 1, and the breathable water-locking layer 3 is composed of a breathable layer 301, a water-locking protective layer 302, a waterproof protective layer 303 and an isolation sleeve 304. The breathable layer 301 plays a role of breathable protection for the base protective film 1, so that the base protective film 1 has an automatic exhaust function when attached to the outside of the physical object. The mutual cooperation between the water-locking protective layer 302 and the waterproof protective layer 303 enables the protective film to have the functions of water locking and waterproof protection. By installing an isolation sleeve 304 on the outside of the breathable layer 301, the water-locking protective layer 302 and the waterproof protective layer 303, it is convenient to isolate and protect the breathable layer 301, the water-locking protective layer 302 and the waterproof protective layer 303 through the isolation sleeve 304, reducing the situation where external corrosive liquids enter the water-locking protective layer 302, and improving the protective effect of the highly permeable water-locking protective film.

[0033] Specifically, the breathable layer 301 , the water-locking protective layer 302 , and the waterproof protective layer 303 are sequentially bonded to the bottom of the base protective film 1 from top to bottom, and the isolation sleeve 304 is sleeved on the outside of the breathable layer 301 , the water-locking protective layer 302 , and the waterproof protective layer 303 .

[0034] Preferably, the breathable layer 301 is a porous polyethylene film. The breathable layer 301 provides breathable protection to the base protective film 1, thereby facilitating the self-exhaust of bubbles generated between the base protective film 1 and the surface of the physical object, thereby improving the convenience and aesthetics of attaching the protective film. The water-locking protective layer 302 is a breathable water-locking polyethylene film. The water-locking protective layer 302 provides waterproof protection to the base protective film 1.

[0035] like Figures 2 to 3 As shown, both sides of the water-locking protective layer 302 are attached with a hydrophilic base layer 8. By arranging the hydrophilic base layer 8 on both sides of the water-locking protective layer 302, it is convenient to lock water for the breathable layer 301, and reduce the cracking of the protective film due to drying during use.

[0036] like Figures 2 to 3 As shown, a hydrophobic base layer 9 is attached to the top of the waterproof protective layer 303, and the upper surface of the hydrophobic base layer 9 is bonded to the lower surface of the hydrophilic base layer 8. By arranging the hydrophobic base layer 9 on the surface of the waterproof protective layer 303, the waterproof protection effect of the waterproof protective layer 303 is improved.

[0037] Specifically, the waterproof protective layer 303 is a breathable waterproof polyethylene film, so that the waterproof protective layer 303 can be used to provide waterproof protection for the base protective film 1, thereby improving the waterproof protection effect of the protective film.

[0038] like Figures 2 to 3 As shown, an electrostatic protection layer 4 is bonded below the isolation sleeve layer 304. The electrostatic protection layer 4 is convenient for providing antibacterial and antistatic protection to the base protective film 1, thereby improving the protection effect of the high permeability and water-locking protective film on the physical object.

[0039] like Figures 2 to 3 As shown, multiple groups of conductive fiber filaments 10 and antibacterial silver filaments 11 are crisscrossedly distributed inside the electrostatic protection layer 4, and the multiple groups of conductive fiber filaments 10 and antibacterial silver filaments 11 cooperate to form an antibacterial and antistatic grid. The multiple groups of conductive fiber filaments 10 and antibacterial silver filaments 11 are crisscrossedly distributed, so as to improve the antibacterial and antistatic properties of the electrostatic protection layer 4.

[0040] During specific use, the release protective film 2 and the adhesive layer 5 can be torn and separated by applying force to the splitting protrusion 6. After the separation is completed, the base protective film 1 can be attached to the outside of the physical object through the adhesion of the adhesive layer 5. At the same time, the breathable layer 301 can be used to make the high-permeability and water-locking protective film have an automatic exhaust function after attachment.

[0041] At the same time, the water-locking protective layer 302 and the waterproof protective layer 303 can make the high-permeability water-locking protective film have the functions of water-locking and waterproof protection, reducing the possibility of cracking of the high-permeability water-locking protective film due to drying during use. At the same time, the air-permeable layer 301, the water-locking protective layer 302 and the waterproof protective layer 303 are encapsulated by the isolation sleeve 304, reducing the possibility of external corrosive liquids being locked into the high-permeability water-locking protective film, thereby improving the effect of water-locking and waterproof protection of physical objects.

[0042] In addition, the electrostatic protection layer 4 and the conductive fiber filaments 10 and antibacterial silver filaments 11 crisscrossedly distributed inside can make the high-permeability water-locking protective film have good antibacterial, antistatic and wear-resistant properties, thereby improving the protective effect of the high-permeability water-locking protective film.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A highly permeable water-locking protective film, comprising a base protective film (1), characterized in that: A release protective film (2) is adhered to the top of the base protective film (1), and a breathable and water-locking layer (3) is bonded to the bottom of the base protective film (1). The breathable and water-locking layer (3) consists of a breathable layer (301), a water-locking protective layer (302), a waterproof protective layer (303) and an isolation sleeve layer (304). The breathable layer (301), the water-locking protective layer (302) and the waterproof protective layer (303) are sequentially bonded to the bottom of the base protective film (1) from top to bottom. The isolation sleeve layer (304) is sleeved on the outside of the breathable layer (301), the water-locking protective layer (302) and the waterproof protective layer (303). An electrostatic protective layer (4) is bonded to the bottom of the isolation sleeve layer (304).

2. The high permeability water-locking protective film according to claim 1, characterized in that: An adhesive layer (5) is bonded between the base protective film (1) and the release protective film (2), and the upper surface of the base protective film (1) and the lower surface of the release protective film (2) are bonded to each other via the adhesive layer (5).

3. The high permeability water-locking protective film according to claim 1, characterized in that: A splitting protrusion (6) is integrally formed on one side of the release protective film (2), and an anti-slip hole (7) is drilled on the splitting protrusion (6).

4. The high permeability water-locking protective film according to claim 1, characterized in that: The air permeable layer (301) is a porous polyethylene film, and the water-locking protective layer (302) is an air permeable and water-locking polyethylene film.

5. The high permeability water-locking protective film according to claim 4, characterized in that: A hydrophilic base layer (8) is attached to both sides of the water-locking protective layer (302).

6. The high permeability water-locking protective film according to claim 5, characterized in that: A hydrophobic base layer (9) is attached above the waterproof protective layer (303), and the upper surface of the hydrophobic base layer (9) is bonded to the lower surface of the hydrophilic base layer (8).

7. The high permeability water-locking protective film according to claim 6, characterized in that: The waterproof protective layer (303) is a breathable and waterproof polyethylene film.

8. The high permeability water-locking protective film according to claim 1, characterized in that: The electrostatic protection layer (4) has multiple groups of conductive fiber threads (10) and antibacterial silver threads (11) distributed in a crisscross pattern inside, and the multiple groups of conductive fiber threads (10) and antibacterial silver threads (11) cooperate to form an antibacterial and antistatic grid.

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