Novel protective film

By adding a buffer layer to the back of the protective film and a partitioned release film layer, the problems of easy breakage and unstable adhesion of existing protective films are solved, achieving stronger screen protection and more reliable adhesion.

CN223948768UActive Publication Date: 2026-02-27ZHONGSHAN HAIRUXIN PLASTIC ELECTRONICS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520463314.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-27
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing protective films are prone to breakage when impacted by sharp objects, and the release film layer can affect the adhesive layer's adhesion when peeled off, resulting in poor bonding reliability.

Method used

A buffer layer is set at the back of the protective film to absorb the impact, and the release film layer is designed to be easy to tear into two parts to avoid fingers touching the adhesive layer, and a partitioned pasting method is adopted.

Benefits of technology

It effectively protects the screen from damage, improves the reliability of film adhesion, avoids the influence of adhesive layer stickiness, and enhances the stability of adhesion.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223948768U_ABST
    Figure CN223948768U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel protective film which comprises a film body, an oleophobic layer is arranged at the upper end of the film body, a buffer layer is arranged at the lower end of the film body, a blue light prevention layer is arranged at the lower end of the buffer layer, a release film layer is pasted at the lower end of the blue light prevention layer, and an easy-to-tear opening is formed in the right side of the release film layer. According to the novel protective film, the buffer layer is arranged at the rear end of the film body, once a screen is stabbed by a sharp object, the buffer layer can absorb most of impact force and protect the screen from being damaged, the release film layer is divided into two parts through the easy-to-tear opening, the release film layers can be torn off one by one when torn off, and the anti-blue-light protective film is formed. The influence on the viscosity of the adhesive layer caused by finger contact with the adhesive layer is avoided, the film body can be pasted in different areas, the small-area area is firstly pasted, once the pasting skew condition occurs, the film body is easier to tear off due to the low viscosity of the small-area area, the overall viscosity is not influenced after the film body is torn off, and the pasting reliability of the film body is higher.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to a protection film technical field, concretely is a novel protection film glue piece. BACKGROUND

[0002] The protection film is used for protecting the mobile phone screen from being scratched, worn and dusted, and the screen protection film is various, including but not limited to anti-reflection film, anti-reflection film, mirror film, anti-peep film and high-definition scratch-resistant film and the like functional protection film.

[0003] In the prior art, the patent with the authorized publication number CN222348920U discloses a novel protection film, which comprises a protection film main body, the protection film main body comprises a base film layer, one side of the base film layer is provided with an adhesive part, the adhesive part is used for connecting the base film layer and the protected object, and the adhesive part is in the form of a frame.

[0004] The novel protection film glue piece has the following shortcomings: no buffer layer, once the protection film main body is impacted by a sharp object, the protection film main body may be broken, and the screen is damaged, the release film layer is torn off by the easy tear strip when the protection film is pasted, but the release film layer is an integral whole, once the adhesive layer at the lower end of the whole model is torn off, the adhesive layer is exposed, and in the process of tearing off the release film layer, one hand will inevitably touch the adhesive layer at the lower end of the film body, thereby affecting the adhesion of the adhesive layer, and once the release film layer is torn off, it is difficult to tear off the film body, even if the film body is torn off, it cannot be used, and the adhesive reliability of the film body is poor, therefore, the novel protection film glue piece is provided. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems of overcoming the defects of the prior art, providing a novel protection film glue piece, a buffer layer is arranged at the rear end of the model, once the screen is pierced by a sharp object, the buffer layer can absorb most of the impact force, and the screen is protected from being damaged, so that the problems in the background art can be effectively solved.

[0006] To achieve the above object, the utility model provides the following technical scheme: A novel protective film adhesive piece, including the membrane body, the upper end of membrane body is provided with the oil -repellent layer, the lower extreme of membrane body is provided with the buffer layer, the lower extreme of buffer layer is provided with the anti blue light layer, the anti blue light layer lower extreme pastes the release film layer, the right side of release film layer is equipped with the easy tear mouth, be provided with the tear strip between easy tear mouth and anti blue light layer, tear strip and easy tear mouth upper and lower position correspond, the rear end of model body is provided with buffer layer, once the screen is pricked by sharp object, buffer layer will absorb most of the impact force, protect the screen is not damaged, and release film layer is divided into two parts through easy tear mouth, can tear down one by one when tearing down release film layer, avoid the influence of the adhesive layer caused by the finger contact adhesive layer, can be zoned pasting when pasting membrane body, first paste small area, once the pasting skew situation is more easily torn down because of small area adhesion is not strong, and after tearing down, it will not affect the overall adhesion, and the reliability of membrane body pasting is stronger.

[0007] Further, the upper surface of the oil-repellent layer is pasted with a protective film layer, so that the protective film layer is not damaged when not in use.

[0008] Further, an easy tear strip two is arranged at the left middle part of the protective film layer to assist tearing down the protective film layer.

[0009] Further, an easy tear strip one is arranged at the front side of the tear strip to facilitate tearing down the tear strip.

[0010] Further, the buffer layer is a thermoplastic polyurethane buffer layer, which has excellent elasticity and toughness and can better play a buffering effect.

[0011] Further, positioning holes are arranged at the right side of the membrane body to prevent the membrane body from being pasted skew.

[0012] Further, the membrane body is a polyurethane membrane body, which has excellent light transmittance and ductility.

[0013] Compared with the prior art, the novel protective film adhesive piece has the following advantages:

[0014] 1. The rear end of the model body is provided with a buffer layer, so that once the screen is pricked by a sharp object, the buffer layer can absorb most of the impact force and protect the screen from being damaged.

[0015] 2. The release film layer is divided into two parts through the easy tear mouth, so that the release film layer can be torn down one by one when being torn down, the adhesion of the adhesive layer caused by the finger contact is avoided, the membrane body can be zoned pasted when being pasted, small area is pasted first, once the pasting skew situation is more easily torn down because of small area adhesion is not strong, and after tearing down, it will not affect the overall adhesion, and the reliability of membrane body pasting is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1A structure schematic view of the utility model is enlarged at the position A;

[0017] Fig. 2 A structure schematic view of the utility model is enlarged at the position A;

[0018] Fig. 3 A structure schematic view of the utility model is enlarged at the position A;

[0019] In the drawing: 1 film body, 2 buffer layer, 3 blue light prevention layer, 4 oil repellent layer, 5 protective film layer, 6 release film layer, 7 easy tear opening, 8 tear strip, 9 easy tear strip one, 10 positioning hole, 11 easy tear strip two. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than 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 protection scope of the utility model.

[0021] Please refer to Figs. 1-3The embodiment provides a technical scheme: a novel protective film adhesive sheet, which comprises a film body 1, the upper end of the film body 1 is provided with an oil-repellent layer 4 (the oil-repellent layer 4 is a perfluoropolyether oil-repellent layer), the lower end of the film body 1 is provided with a buffer layer 2, the lower end of the buffer layer 2 is provided with an anti-blue light layer 3 (the anti-blue light layer 3 is prepared by spraying silicon nitride on polyethylene terephthalate), the lower end of the anti-blue light layer 3 is pasted with a release film layer 6 (the release film layer 6 is a polypropylene release film layer), an easy-to-tear opening 7 is formed in the right side of the release film layer 6, a tear strip 8 is arranged between the easy-to-tear opening 7 and the anti-blue light layer 3, the tear strip 8 corresponds to the easy-to-tear opening 7 in position, the upper surface of the oil-repellent layer 4 is pasted with a protective film layer 5 (the protective film layer 5 is a polyethylene protective film layer), an easy-to-tear strip two 11 is arranged in the left side of the middle of the protective film layer 5, an easy-to-tear strip one 9 is arranged on the front side of the tear strip 8, the buffer layer 2 is a thermoplastic polyurethane buffer layer, a positioning hole 10 is formed in the right side of the film body 1, and the film body 1 is a polyurethane film body. When the novel protective film adhesive sheet is used, the easy-to-tear strip one 9 is first pinched by hand and then pulled backward, so that the easy-to-tear strip one 9 drives the tear strip 8 to pull and tear the release film layer 6 upward, the release film layer 6 is disconnected from the easy-to-tear opening 7 and the edge of the disconnected part is lifted, then the right half part of the release film layer 6 with a relatively short length is torn off, then the positioning hole 10 is aligned with the camera of the screen, the film body 1 is pasted on the surface of the screen, then the left half part of the release film layer 6 is first torn off a part by hand, so that the release film layer one 6 and the film body 1 are in a herringbone shape on the upper end of the screen, then the film body 1 is pressed by a paperboard and pushed to the rear side of the screen, at this time, the release film layer one 6 is forced to be separated from the film body 1 and the film body 1 is adhered to the surface of the screen, after completion, the protective film layer 5 is torn off by pinching the easy-to-tear strip two 11 by hand, and then the screen can be used. The buffer layer 2 is arranged at the rear end of the film body 1, once the screen is pricked by a sharp object, the buffer layer 2 can absorb most of the impact force, so that the screen is protected from being damaged, the release film layer 6 is divided into two parts through the easy-to-tear opening 7, the release film layer 6 can be torn off one by one when the release film layer 6 is torn off, so that the influence of the adhesive layer caused by the contact of fingers on the adhesive layer is avoided, the film body 1 can be pasted in zones when the film body 1 is pasted, a small area is pasted first, once the pasting is skewed, the small area is more easily torn off due to the weak adhesion, and the overall adhesion will not be affected after being torn off, and the film body is more reliable in adhesion.

[0022] The working principle of the novel protective film glue piece is as follows: when the novel protective film glue piece is used, the easy-to-tear strip one 9 is first pinched by hand and then pulled, so that the easy-to-tear strip one 9 drives the tear strip 8 to pull the release film layer 6 upward, the release film layer 6 is disconnected from the easy-to-tear opening 7 and the edge of the disconnected part is lifted, then the release film layer 6 with a shorter length on the right side is torn off, then the positioning hole 10 is aligned with the camera of the screen, the film body 1 is attached to the surface of the screen, then the release film layer 6 on the left side is first torn off a part by hand, so that the release film layer one 6 and the film body 1 are in a herringbone shape on the upper end of the screen, then the film body 1 is pushed to the back side of the screen by pressing the film body 1 with a paperboard, at this time the release film layer one 6 is forced to be separated from the film body 1 and the film body 1 is attached to the surface of the screen, after completion, the easy-to-tear strip two 11 is pinched by hand and the protective film layer 5 is torn off, so that the screen can be used.

[0023] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification and the attached drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A novel protective film, characterized in that: The membrane includes a membrane body (1), an oleophobic layer (4) is provided at the upper end of the membrane body (1), a buffer layer (2) is provided at the lower end of the membrane body (1), a blue light blocking layer (3) is provided at the lower end of the buffer layer (2), a release film layer (6) is attached to the lower end of the blue light blocking layer (3), an easy-tear opening (7) is provided on the right side of the release film layer (6), a tear strip (8) is provided between the easy-tear opening (7) and the blue light blocking layer (3), and the tear strip (8) corresponds to the easy-tear opening (7) in the upper and lower positions.

2. The novel protective film according to claim 1, characterized in that: A protective film layer (5) is attached to the upper surface of the oleophobic layer (4).

3. The novel protective film according to claim 2, characterized in that: The protective film layer (5) has an easy-tear strip (11) in the middle of its left side.

4. The novel protective film according to claim 1, characterized in that: The front side of the tear strip (8) is provided with an easy-tear strip (9).

5. The novel protective film according to claim 1, characterized in that: The buffer layer (2) is a thermoplastic polyurethane buffer layer.

6. The novel protective film according to claim 1, characterized in that: A positioning hole (10) is provided on the right side of the membrane (1).

7. The novel protective film according to claim 1, characterized in that: The membrane (1) is a polyurethane membrane.

Citation Information

Patent Citations

  • Novel protective film

    CN222348920U