High-barrier medical release film

Abstract

The utility model discloses a high-barrier medical release film, and relates to the technical field of release films. The high-barrier medical release film comprises a release film body, the release film body comprises a PET film base layer, an anti-tear layer is compounded on the surface of the top of the PET film base layer, and a barrier layer is compounded on the surface of the top of the anti-tear layer; the top surface of the barrier layer is compounded with a PE wear-resistant layer, the bottom surface of the PET film base layer is provided with a bonding layer, the tear-resistant layer comprises a thermoplastic polyurethane layer, and the thermoplastic polyurethane layer is arranged on the top surface of the PET film base layer; the surface of the top of the thermoplastic polyurethane layer is provided with a tensile fiber filament, and one side of the tensile fiber filament is provided with a tensile fiber short filament, so that the multi-barrier protective effect can be achieved, the structural strength of the release film body can be ensured, the use safety of the release film body can be improved, the range of the release film body can be widened, and the service life of the release film body can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of release film, specifically to a high barrier medical release film. BACKGROUND

[0002] Release film refers to the film with separation on the surface, and the release film does not have adhesion or slight adhesion after contacting with specific materials under limited conditions. It is widely used in OCA glue, backlight die cutting, adhesive products, pressing and demolding industries, and plays a good isolation protection role.

[0003] However, the existing medical release film has insufficient barrier performance when in use, which can easily lead to the penetration of external dirt into the inside of the medical release film, and thus the inside of the medical release film is contaminated. Therefore, the present application provides a high barrier medical release film to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a high barrier medical release film, which solves the problem that the inside of the medical release film is contaminated due to the insufficient barrier performance of the medical release film.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a high barrier medical release film, comprising a release film main body, the release film main body comprises a PET film base layer, the top surface of the PET film base layer is compounded with a tear-resistant layer, the top surface of the tear-resistant layer is compounded with a barrier layer.

[0006] The top surface of the barrier layer is compounded with a PE wear-resistant layer, and the bottom surface of the PET film base layer is provided with an adhesive layer.

[0007] Preferably, the tear-resistant layer comprises a thermoplastic polyurethane layer, and the thermoplastic polyurethane layer is arranged on the top surface of the PET film base layer.

[0008] The top surface of the thermoplastic polyurethane layer is provided with a tensile fiber filament, and one side of the tensile fiber filament is provided with a tensile fiber short filament.

[0009] Preferably, the tensile fiber filament and the tensile fiber short filament are made of glass fiber, carbon fiber or natural fiber.

[0010] Preferably, the barrier layer comprises a PVDC film arranged on the bottom surface of the PE wear-resistant layer, and the bottom surface of the PVDC film is compounded with an aluminum oxide film.

[0011] The bottom surface of the aluminum oxide film is compounded with an aluminum plating film, and the bottom surface of the aluminum plating film is compounded with a PA film.

[0012] Preferably, the top surface of the PE wear-resistant layer is coated with a silver ion antibacterial agent.

[0013] Preferably, the bottom surface of the adhesive layer is provided with a release paper layer. Advantages

[0014] The utility model provides a kind of high barrier medical release film.Compared with prior art has the following beneficial effects:

[0015] The high barrier medical release film, through PET film base layer in release film main part, both can provide attachment basis to resist tearing layer and adhesive layer, also can play a certain isolation effect, and by tear-resistant layer, the structural strength of release film main part can be strengthened, to improve the service life of release film main part in turn, then through barrier layer, the effect of multiple barrier can be played, to prevent external dirt penetration, so as to prevent the inside of release film main part from being contaminated, through PE wear-resistant layer, both can be attached on the top surface of barrier layer, also can strengthen the wear resistance of release film main part, to improve the service life and safety of release film main part in turn, through adhesive layer, user can be conveniently adhered in specified position, to improve the convenience of release film main part in turn. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model.

[0017] Figure 2 It is the tear-resistant layer structure schematic diagram of the utility model.

[0018] Figure 3 It is the barrier layer structure schematic diagram of the utility model.

[0019] In the drawing: 1, release film main part;2, PET film base layer;3, tear-resistant layer;31, thermoplastic polyurethane layer;32, tensile fiber filament;33, tensile fiber short silk;4, barrier layer;41, PVDC film;42, aluminum oxide film;43, aluminum coated film;44, PA film;5, PE wear-resistant layer;6, silver ion antibacterial agent;7, adhesive layer;8, release paper layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figure 1The utility model provides a technical scheme: a kind of high-barrier medical release film, including release film main body 1, release film main body 1 includes PET film base layer 2, the top surface of PET film base layer 2 is compounded with tear-resistant layer 3, the top surface of tear-resistant layer 3 is compounded with barrier layer 4;The top surface of barrier layer 4 is compounded with PE wear-resistant layer 5, the bottom surface of PET film base layer 2 is provided with adhesive layer 7;

[0022] Through PET film base layer 2 in release film main body 1, tear-resistant layer 3 and adhesive layer 7 can be provided with the attachment basis, can also play a certain isolation effect, and by tear-resistant layer 3, the structural strength of release film main body 1 can be strengthened, to improve the service life of release film main body 1, then through barrier layer 4, the effect of multiple barrier can be played, to prevent external dirt penetration, so as to prevent the inside of release film main body 1 from being contaminated, through PE wear-resistant layer 5, it can be attached to the top surface of barrier layer 4, and the wear resistance of release film main body 1 can be strengthened, to improve the service life and safety of release film main body 1, through adhesive layer 7, user can be conveniently bonded in specified position, to improve the convenience of release film main body 1.

[0023] Referring to Figure 1 、 Figure 2 Tear-resistant layer 3 includes thermoplastic polyurethane layer 31, and thermoplastic polyurethane layer 31 is arranged on the top surface of PET film base layer 2;The top surface of thermoplastic polyurethane layer 31 is provided with anti-tension fiber filament 32, and one side of anti-tension fiber filament 32 is provided with anti-tension fiber short filament 33, and anti-tension fiber filament 32 and anti-tension fiber short filament 33 adopt glass fiber filament, carbon fiber filament or natural fiber filament;

[0024] Through thermoplastic polyurethane layer 31 in tear-resistant layer 3, it can be bonded and compounded on the top surface of PET film base layer 2, and can provide the attachment basis for anti-tension fiber filament 32 and anti-tension fiber short filament 33 made of multiple glass fiber filaments, carbon fiber filaments or natural fiber filaments, and the anti-tear performance of thermoplastic polyurethane layer 31 can be strengthened under the attachment of anti-tension fiber filament 32 and anti-tension fiber short filament 33, to improve the service life and safety of release film main body 1.

[0025] Referring to Figure 1 、 Figure 3 Barrier layer 4 includes PVDC film 41 arranged on the bottom surface of PE wear-resistant layer 5, and the bottom surface of PVDC film 41 is compounded with aluminum oxide film 42;The bottom surface of aluminum oxide film 42 is compounded with aluminized film 43, and the bottom surface of aluminized film 43 is compounded with PA film 44;

[0026] The PVDC film 41 in the barrier layer 4 can be bonded to the bottom surface of the PE wear-resistant layer 5 and provide a bonding basis for the aluminum oxide film 42. The combination of the PVDC film 41 and the aluminum oxide film 42 can ensure the mechanical strength in use, and have certain gas barrier and moisture resistance. The aluminized film 43 and the PA film 44 can provide good barrier performance and light shielding effect, and have certain puncture resistance, thereby improving the use range and service life of the release film body 1.

[0027] Referring to Figure 1 The top surface of the PE wear-resistant layer 5 is coated with a silver ion antibacterial agent 6, which can provide the PE wear-resistant layer 5 with certain antibacterial ability and prevent bacteria from breeding on the surface.

[0028] Referring to Figure 1 The bottom surface of the bonding layer 7 is provided with a release paper layer 8, which can be attached to the bottom surface of the bonding layer 7 and be torn off by the user during use, thereby preventing the bonding layer 7 from being contaminated when not in use.

[0029] In use, the PET film base layer 2 in the release film body 1 can provide an attachment basis for the tear-resistant layer 3 and the bonding layer 7 and have a certain isolation effect. The tear-resistant layer 3 can strengthen the structural strength of the release film body 1 and improve the service life of the release film body 1. The barrier layer 4 can have a multiple barrier effect and prevent external contaminants from penetrating, thereby preventing the inside of the release film body 1 from being contaminated. The PE wear-resistant layer 5 can be attached to the top surface of the barrier layer 4 and strengthen the wear resistance of the release film body 1, thereby improving the service life and safety of the release film body 1. The bonding layer 7 can be easily attached to a specified position by the user, thereby improving the convenience of the release film body 1.

[0030] The thermoplastic polyurethane layer 31 in the tear-resistant layer 3 can be bonded to the top surface of the PET film base layer 2 and provide an attachment basis for the tensile fiber long filaments 32 and the tensile fiber short filaments 33 made of multiple glass fiber filaments, carbon fiber filaments or natural fiber filaments. The attachment of the tensile fiber long filaments 32 and the tensile fiber short filaments 33 can strengthen the tear resistance of the thermoplastic polyurethane layer 31, thereby improving the service life and safety of the release film body 1.

[0031] Through the PVDC film 41 in the barrier layer 4, it can be bonded and compounded on the bottom surface of the PE wear-resistant layer 5, and can provide a bonding and compounding basis for the aluminum oxide film 42, and the double cooperation of the PVDC film 41 and the aluminum oxide film 42 can ensure its mechanical strength in use, and has certain gas barrier and moisture resistance ability, then through the aluminized film 43 and the PA film 44, it can have good barrier performance and shading effect, and has certain puncture resistance, further improves the use range and service life of the release film main body 1, because the top surface of the PE wear-resistant layer 5 is coated with silver ion antibacterial agent 6, the PE wear-resistant layer 5 has certain antibacterial ability, and further can prevent bacteria from breeding on its surface, because the bottom surface of the adhesive layer 7 is provided with the release paper layer 8, it can be attached to the bottom surface of the adhesive layer 7, and can be torn off when used, and further can prevent the adhesive layer 7 from being contaminated when not in use.

[0032] In summary, the device can play a multiple barrier protection effect, and can ensure its own structural strength, and further can improve the use safety, range and service life of the release film main body 1.

[0033] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A high barrier medical release film comprising a release film body (1), characterized in that: The release film body (1) comprises a PET film base layer (2), a top surface of the PET film base layer (2) is compounded with a tear-resistant layer (3), a top surface of the tear-resistant layer (3) is compounded with a barrier layer (4); A bottom surface of the PET film base layer (2) is provided with an adhesive layer (7).

2. The high-barrier medical release film according to claim 1, characterized by: The tear-resistant layer (3) comprises a thermoplastic polyurethane layer (31), the thermoplastic polyurethane layer (31) is arranged on the top surface of the PET film base layer (2); A top surface of the thermoplastic polyurethane layer (31) is provided with a tensile fiber filament (32), one side of the tensile fiber filament (32) is provided with a tensile fiber short filament (33).

3. The high barrier medical release film according to claim 2, characterized in that: The tensile fiber filament (32) and the tensile fiber short filament (33) are made of glass fiber, carbon fiber or natural fiber.

4. The high barrier medical release film according to claim 1, characterized in that: The barrier layer (4) comprises a PVDC film (41) arranged on a bottom surface of the PE wear-resistant layer (5), a bottom surface of the PVDC film (41) is compounded with an aluminum oxide film (42); A bottom surface of the aluminum oxide film (42) is compounded with an aluminum plating film (43), a bottom surface of the aluminum plating film (43) is compounded with a PA film (44).

5. The high barrier medical release film according to claim 1, characterized in that: A top surface of the PE wear-resistant layer (5) is coated with a silver ion antibacterial agent (6).

6. The high barrier medical release film according to claim 1, characterized in that: A bottom surface of the adhesive layer (7) is provided with a release paper layer (8).

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