Antistatic protective film

Abstract

The utility model relates to the technical field of protective films, in particular to an antistatic protective film which comprises a wear-resistant layer, a first antistatic layer, an adhesive layer, a fixed tensile layer, a PET (polyethylene terephthalate) base layer, a second antistatic layer, a pressure-sensitive adhesive layer and a release layer which are sequentially adhered from top to bottom, according to the anti-static protective film disclosed by the utility model, the double anti-static layers are arranged, so that dust and impurities can be prevented from being adsorbed on the surface of a protected product, and potential damage of static electricity to the protected product is avoided; the arrangement of the wear-resistant layer and the fixed tensile layer aims at preventing the antistatic protective film from deforming due to external force in the processing and transportation processes, and the integrity and the antistatic performance of the antistatic layer are maintained and are not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective film, specifically relates to an antistatic protective film. BACKGROUND

[0002] The antistatic protective film is generally used for the process protection of electronic equipment, and is mainly used for preventing dust and impurities from being adsorbed and preventing static damage. With the rapid development of electronic equipment such as mobile phones and tablets in recent years, the use of process protective films for these electronic equipment has also developed rapidly. There are many modules in the mobile phones, tablets and other electronic equipment, and these modules need to be die-cut to meet the assembly size, and the die-cutting process generally needs to paste an antistatic protective film on the surface of the module to protect the surface.

[0003] The utility model discloses an antistatic protective film in the Chinese utility model patent publication No. 202021029465.7, including first antistatic layer, base material layer, second antistatic layer, pressure sensitive adhesive layer and release layer that set gradually, first antistatic layer is antistatic film, second antistatic layer is antistatic liquid layer, and a plurality of hollow mesh holes are arranged on the pressure sensitive adhesive layer. The utility model has the effect of antistatic on both sides, not only can prevent the accumulation of static on the surface of the protective film, but also can prevent impurities from being adsorbed on the surface of the protected product.

[0004] However, the antistatic protective film of the utility model is prone to deformation under the action of external force during transportation and attachment, and the antistatic protective film will shrink and deform after long-term use, which reduces the antistatic performance of the protective film. SUMMARY

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide an antistatic protective film.

[0006] The utility model discloses the purpose through the following technical scheme: an antistatic protective film, including from top to bottom setting in proper order is wear-resistant layer, first antistatic layer, bonding layer, fixed tensile layer, PET base layer, second antistatic layer, pressure sensitive adhesive layer and release layer, the lower surface of wear-resistant layer is pasted to the upper surface of first antistatic layer, the lower surface of first antistatic layer and the upper surface of fixed tensile layer are pasted through bonding layer, the upper surface and the lower surface of PET base layer are pasted to the lower surface of fixed tensile layer and the upper surface of second antistatic layer respectively, the lower surface of second antistatic layer is pasted to the upper surface of pressure sensitive adhesive layer, and the lower surface of pressure sensitive adhesive layer is pasted to the upper surface of release layer.

[0007] Further, the wear-resistant layer is a polyester amide film, and the thickness of the wear-resistant layer is 10-20 microns.

[0008] Further, the first anti-static layer is a graphene polyurethane film, and the thickness of the first anti-static layer is 20-40 microns.

[0009] Further, the adhesive layer is an acrylic adhesive layer, and the thickness of the acrylic adhesive layer is 10-20 microns.

[0010] Further, the fixed tensile layer is a glass fiber film, and the thickness of the fixed tensile layer is 40-60 microns.

[0011] Further, the second anti-static layer is a silicone acid ethyl film, and the thickness of the second anti-static layer is 20-40 microns.

[0012] Further, the pressure-sensitive adhesive layer is an organic silicon pressure-sensitive adhesive layer, and the thickness of the pressure-sensitive adhesive layer is 10-20 microns.

[0013] Further, the release layer is a polyethylene release film, and the thickness of the release layer is 10-20 microns.

[0014] The anti-static protective film of the utility model has the advantages that the anti-static protective film is provided with a wear-resistant layer, can provide a physical barrier when the product to be protected is scratched, effectively prevents damage, and thus enhances the protection effect of the protective film; the double-layer anti-static layer prevents dust and impurities from being adsorbed on the surface of the product to be protected, and avoids potential damage of static electricity to the product to be protected; the fixed tensile layer prevents the protective film from being deformed due to external force during processing and transportation, and ensures that the protective film can maintain the original shape after long-term use; the adhesive layer is arranged to solve the problem of unstable adhesion of the outer film layer; the pressure-sensitive adhesive layer ensures that the protective film can be firmly attached to the surface of the product to be protected, and no glue is left after peeling. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a partial sectional view of the utility model.

[0016] The reference signs are: wear-resistant layer 1, first anti-static layer 2, adhesive layer 3, fixed tensile layer 4, PET base layer 5, second anti-static layer 6, pressure-sensitive adhesive layer 7, and release layer 8. DETAILED DESCRIPTION

[0017] For the convenience of those skilled in the art, the following embodiments and drawings are combined to facilitate understanding. Figure 1 The utility model is further described, and the content mentioned in the embodiments is not a limitation of the utility model.

[0018] See Figure 1The utility model discloses an antistatic protective film, including abrasion -resistant layer 1, first antistatic layer 2, bonding layer 3, fixed tensile layer 4, PET base layer 5, second antistatic layer 6, pressure sensitive adhesive layer 7 and release layer 8 that are sequentially arranged from top to bottom, the lower surface of abrasion -resistant layer 1 is attached to the upper surface of first antistatic layer 2, the lower surface of first antistatic layer 2 and the upper surface of fixed tensile layer 4 are attached through bonding layer 3, the upper surface and the lower surface of PET base layer 5 are attached with the lower surface of fixed tensile layer 4, the upper surface of second antistatic layer 6 respectively, the lower surface of second antistatic layer 6 and the upper surface of pressure sensitive adhesive layer 7 are attached, and the lower surface of pressure sensitive adhesive layer 7 and the upper surface of release layer 8 are attached.

[0019] The antistatic protective film of the utility model can provide a physical barrier when the protected product is scratched, effectively prevent damage, and thus enhance the protection efficiency of the protective film; the double-layer antistatic layer can prevent dust and impurities from being adsorbed on the surface of the protected product, and avoid potential damage of static electricity to the protected product; the bonding layer 3 is arranged to enhance the adhesion stability of the outer film layer; the fixed tensile layer 4 is arranged to prevent the protective film from being deformed due to external force during processing and transportation, and ensure that the protective film can maintain the original shape after long-term use; the pressure sensitive adhesive layer 7 is arranged to ensure that the protective film can be firmly attached to the surface of the protected product, and no glue remains when peeled off.

[0020] In the present instance, the abrasion -resistant layer 1 is a polyester amide film, and the thickness of the abrasion -resistant layer 1 is 10-20 microns. The polyester amide film has good corrosion resistance and wear resistance, and when used as the abrasion -resistant layer 1, the antistatic protective film can prevent the antistatic layer from being damaged and losing the antistatic protection ability when the antistatic protective film is scratched.

[0021] In the present instance, the first antistatic layer 2 is a graphene polyurethane film, and the thickness of the first antistatic layer 2 is 20-40 microns. The graphene polyurethane film has low resistivity, can quickly disperse and conduct static electricity, reduce static accumulation, effectively prevent static hazards, and improve the antistatic ability of the antistatic protective film.

[0022] In the present instance, the bonding layer 3 is an acrylic adhesive layer. The bonding layer 3 is arranged to enhance the adhesion stability of the outer film layer.

[0023] In the fact example, the fixed tensile layer 4 is a glass fiber film, and the thickness of the fixed tensile layer 4 is 40-60 μm. The glass fiber film is used as the fixed tensile layer 4 of the antistatic protective film, which can prevent the antistatic protective film from being deformed by external force during processing and transportation, and can also prevent the protective film from being deformed after long-term use, thereby significantly improving the tensile strength and impact resistance of the antistatic protective film and prolonging the service life of the antistatic protective film.

[0024] In the fact example, the second antistatic layer 6 is a silicone film, and the thickness of the second antistatic layer 6 is 20-40 μm. The silicone film has good conductivity, which can conduct the static electricity on the surface of the release film, thereby achieving the effect of removing static electricity. In combination with the first antistatic layer, the antistatic ability of the release film is further improved.

[0025] In the fact example, the pressure-sensitive adhesive layer 7 is an organic silicon pressure-sensitive adhesive layer, and the thickness of the pressure-sensitive adhesive layer 7 is 10-20 μm. The organic silicon pressure-sensitive adhesive layer 7 is arranged to facilitate the attachment of the antistatic protective film to the surface of the protected product, and the surface of the protected product is free of adhesive residue after the antistatic protective film is removed.

[0026] In the fact example, the release layer 8 is a polyethylene release film, and the thickness of the release layer 8 is 10-20 μm.

[0027] The above embodiment is a preferred implementation scheme of the present application, and in addition to this, the present application can also be implemented in other ways, and any obvious replacement without departing from the concept of the present application is within the protection scope of the present application.

Claims

1. An antistatic protective film, characterized in that: The structure comprises, from top to bottom, a wear-resistant layer, a first antistatic layer, an adhesive layer, a fixed tensile layer, a PET base layer, a second antistatic layer, a pressure-sensitive adhesive layer, and a release layer. The lower surface of the wear-resistant layer is bonded to the upper surface of the first antistatic layer. The lower surface of the first antistatic layer is bonded to the upper surface of the fixed tensile layer via the adhesive layer. The upper and lower surfaces of the PET base layer are bonded to the lower surface of the fixed tensile layer and the upper surface of the second antistatic layer, respectively. The lower surface of the second antistatic layer is bonded to the upper surface of the pressure-sensitive adhesive layer, and the lower surface of the pressure-sensitive adhesive layer is bonded to the upper surface of the release layer.

2. The antistatic protective film according to claim 1, characterized in that: The wear-resistant layer is a polyester amide film with a thickness of 10–20 μm.

3. The antistatic protective film according to claim 1, characterized in that: The first antistatic layer is a graphene polyurethane film, and the thickness of the first antistatic layer is 20-40 μm.

4. The antistatic protective film according to claim 1, characterized in that: The adhesive layer is an acrylic adhesive layer with a thickness of 10–20 μm.

5. The antistatic protective film according to claim 1, characterized in that: The fixed tensile layer is a glass fiber film with a thickness of 40–60 μm.

6. The antistatic protective film according to claim 1, characterized in that: The second antistatic layer is a ethyl silicate film, and the thickness of the second antistatic layer is 20-40 μm.

7. The antistatic protective film according to claim 1, characterized in that: The pressure-sensitive adhesive layer is an organosilicon pressure-sensitive adhesive layer with a thickness of 10–20 μm.

8. The antistatic protective film according to claim 1, characterized in that: The release layer is a polyethylene release film with a thickness of 10–20 μm.

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