Protective film assembly and film pasting device

Abstract

The embodiment of the utility model provides a protective film assembly and a film pasting device. The protective film assembly comprises a protective film and a film pasting device, the adhesive layer is arranged on one side of the protective film; the release film is arranged on one side, far away from the protective film, of the bonding layer and is attached to the bonding layer; wherein one side, close to the adhesive layer, of the release film is provided with a first anti-static layer, and the first anti-static layer covers the binding surface of the release film and the protective film. The first antistatic layer is arranged on the side, close to the adhesive layer, of the release film, so that fine impurities can be prevented from being adsorbed to the adhesive layer by static electricity when the protective film assembly is used for pasting a film on electronic equipment, and the use feeling and experience feeling of a user are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic device film accessories, and in particular to a protective film assembly and a film application device. Background Technology

[0002] With the development of technology, more and more electronic devices such as mobile phones and laptops are appearing in people's work, social life or entertainment, becoming an indispensable part of people's lives. In order to prevent the mobile phone screen from being damaged by external factors, many people choose to use screen protectors and protective films together to protect the screen of their mobile phones and laptops.

[0003] In existing screen protector components, due to the release film and material characteristics of the protective film, static electricity is usually present on the release film or protective film. Static electricity can attract small impurities and dust. During the application of the screen protector to a mobile phone or laptop, small impurities and dust are easily attracted to the protective film. As a result, after the screen protector is applied, dust will be stuck between the mobile phone screen and the protective film, which will affect the application effect and reduce the user's experience. Utility Model Content

[0004] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, this utility model provides a protective film assembly and a film application device.

[0005] Specifically, on one hand, the protective film assembly provided in this embodiment of the present invention includes: a protective film; an adhesive layer disposed on one side of the protective film; and a release film disposed on the side of the adhesive layer away from the protective film and in contact with the adhesive layer; wherein, a first antistatic layer is disposed on the side of the release film close to the adhesive layer, and the first antistatic layer covers the bonding surface between the release film and the protective film.

[0006] In one embodiment of the present invention, a second antistatic layer is provided on the side of the release film away from the adhesive layer, and the second antistatic layer covers the surface of the release film away from the adhesive layer.

[0007] In one embodiment of the present invention, a third antistatic layer is provided on the surface of the adhesive layer near the release film, and the third antistatic layer covers the surface of the adhesive layer near the release film.

[0008] In one embodiment of the present invention, the antistatic layer is a layered structure composed of a composite material containing an antistatic agent, wherein the antistatic agent is distributed in a dispersed form in the antistatic layer.

[0009] In one embodiment of this utility model, a pull strap is provided on the side of the release film away from the adhesive layer. The pull strap includes a fixed end and a free end. The fixed end is connected to one end of the release film, and the free end extends from the other end of the release film along the length direction of the release film. When the free end is pulled along the length direction of the protective film assembly toward the side away from the fixed end, the end of the release film near the fixed end bends toward the side away from the protective film and is wound along the moving direction of the free end to form a wound structure.

[0010] In one embodiment of the present invention, a silicone layer is adhered to the side of the release film near the adhesive layer, and the silicone layer is located on the side of the first antistatic layer near the adhesive layer.

[0011] On the other hand, the film-applying device provided in this embodiment includes: a film applicator having a receiving groove for accommodating an electronic device; and a protective film assembly as described above, wherein the protective film assembly is disposed on the side of the film applicator having the receiving groove, and the release film is located between the electronic device and the protective film.

[0012] In one embodiment of the present invention, a positioning element is further included to maintain a fixed gap between the protective film assembly and the electronic device. When the release film is torn apart from one end relative to the protective film, the release film forms a winding structure between the protective film and the electronic device. The winding structure contacts the screen of the electronic device and slides on the screen as the release film is torn off.

[0013] In one embodiment of this invention, the minimum gap between the release film and the electronic device is not less than twice the thickness of the release film.

[0014] In one embodiment of this utility model, the positioning element is a positioning film, which is disposed on the side of the protective film away from the adhesive layer. The positioning film cooperates with the applicator to form a gap between the release film and the electronic device.

[0015] As can be seen from the above, this utility model embodiment divides the protective film assembly into a protective film, an adhesive layer, and a release film. The adhesive layer is used to adhere to the screen surface of the electronic device. The release film is used to separate from the adhesive layer when the protective film assembly is applied to the electronic device. Since static electricity can attract small impurities and dust, a first antistatic layer is provided on the side of the release film near the adhesive layer, so that the side of the release film near the adhesive layer does not have static electricity. Moreover, when the release film separates from the adhesive layer, it will not generate static electricity due to friction. This ensures that when the release film separates from the adhesive layer, it will not attract impurities onto the adhesive layer. This ensures that when applying the protective film assembly to the electronic device, small impurities are not attracted to the adhesive layer of the protective film assembly by static electricity during the application process. This prevents small impurities from adsorbing between the adhesive layer and the electronic device, thereby reducing the adsorption of small impurities during the application process, improving the application effect, and enhancing the user's experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of a protective film assembly provided in the first embodiment of this application.

[0018] Figure 2 for Figure 1 Another perspective view shown.

[0019] Figure 3 for Figure 1 The exploded view of the release film and the pull tape is shown.

[0020] Figure 4 for Figure 1 The diagram shows the structure of the protective film assembly during the film application process.

[0021] Figure 5 for Figure 4 The diagram shows the structure of the release film and the pull belt in combination.

[0022] Figure 6 This is an overall structural diagram of a film-applying device provided in the second embodiment of this application.

[0023] Figure 7 for Figure 6 The exploded view shown.

[0024] Figure 8 for Figure 6The diagram shows the overall structure of the electronic device when a film is applied using a film-applying device.

[0025] Figure 9 for Figure 8 The exploded view shown.

[0026] [Explanation of Labels in the Attached Image]

[0027] 1: Film applicator; 10: Film applicator; 20: Protective film assembly; 21: Protective film; 22: Adhesive layer; 23: Release film; 24: First antistatic layer; 25: Second antistatic layer; 26: Pull strap; 27: Positioning film; 28: Third antistatic layer; 231: Winding structure; 232: Silicone layer; 234: First end; 235: Second end; 261: Fixed end; 262: Free end; X: Length direction of the protective film assembly. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, top, bottom) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] In this embodiment of the invention, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0031] [First Embodiment]

[0032] See Figures 1-5 This utility model provides a protective film assembly 20, which includes, for example, a protective film 21, an adhesive layer 22, and a release film 23.

[0033] Specifically, the protective film 21 may be disposed, for example, on an applicator. The adhesive layer 22 is disposed on one side of the protective film 21. The release film 23 is disposed on the side of the protective film 21 near the adhesive layer 22 and is adhered to the adhesive layer 22. A first antistatic layer 24 is disposed on the side of the release film 23 near the adhesive layer 22, and the first antistatic layer 24 covers the adhesion surface between the release film 23 and the protective film 21. The protective film 21 may be, for example, a core component of the protective film, used to determine the basic performance of the protective film assembly 20, such as flexibility, transparency, etc. The protective film 21 may be, for example, made of TPU (Thermoplastic Polyurethane) material or tempered glass. The adhesive layer 22 may be used, for example, to fix the protective film assembly 20 to the screen of an electronic device, and may provide cushioning protection and dust and dirt protection for the screen of the electronic device. The adhesive layer 22 may be, for example, a layer composed of silicone material. The release film 23 may be, for example, a peeling layer, which protects the adhesive layer 22 and ensures that it remains clean and sticky before use. The first antistatic layer 24 may be, for example, a layer composed of an antistatic agent or an antistatic agent may be attached to the surface of the release film 23 near the adhesive layer 22. The antistatic layer is a layered structure composed of a composite material containing an antistatic agent, which is dispersed in the antistatic layer. The antistatic agent may be, for example, composed of antistatic materials in the prior art.

[0034] In existing technologies, due to the material characteristics of release films and protective films, they often carry static electricity. However, in practical applications, static electricity can attract small impurities, which are then adsorbed onto the protective film during the application process, affecting the application effect. This embodiment of the invention divides the protective film assembly 20 into a protective film 21, an adhesive layer 22, and a release film 23. The adhesive layer 22 is used to adhere to the screen surface of the electronic device. The release film 23 is used to detach from the adhesive layer 22 when the protective film assembly 20 is applied to the electronic device. Since static electricity can attract small impurities and dust, a first antistatic layer 24 is provided on the side of the release film 23 near the adhesive layer 22. This ensures that the side of the release film near the adhesive layer is free of static electricity, and that the release film does not generate static electricity due to friction when separating from the adhesive layer. The generation of static electricity prevents the release film 23 from adsorbing impurities onto the adhesive layer 22 when it separates from the adhesive layer 22. This ensures that when applying a protective film assembly 20 to an electronic device, small impurities are prevented from being electrostatically attracted to the adhesive layer 22 of the protective film assembly 20 during the application process. This also prevents small impurities from adsorbing between the adhesive layer 22 and the electronic device, thereby reducing the adsorption of small impurities during the application process, improving the application effect, and enhancing the user's experience.

[0035] Furthermore, such as Figure 2 As shown, a second antistatic layer 25 is disposed on the side of the release film 23 away from the adhesive layer 22. The second antistatic layer 25 covers the surface of the release film 23 on the side away from the adhesive layer 22, and the first antistatic layer 24 and the second antistatic layer 25 are disposed opposite to each other. The second antistatic layer 25 may be composed of, for example, an antistatic agent, which may be composed of, for example, antistatic materials in the prior art. By disposing of the first antistatic layer 24 and the second antistatic layer 25 on both sides of the release film 23, it can be ensured that there is no electrostatic adsorption of impurities on the side of the electronic device close to the release film 23, thereby improving the film application effect. More specifically, the first antistatic layer 24 and the second antistatic layer 25 are composed of conductive polymers or surfactants. In other embodiments, the first antistatic layer 24 and the second antistatic layer 25 may also be composed of, for example, a quaternary ammonium salt compound (such as tetramethylammonium chloride) and an inorganic antistatic agent (such as the metal oxide titanium dioxide).

[0036] Furthermore, a third antistatic layer 28 is disposed on the surface of the adhesive layer 22 near the release film 23, covering the surface of the adhesive layer 22 near the release film 23. The third antistatic layer 28 may be, for example, an antistatic agent, which may be filled, for example, on the surface of the adhesive layer 22 near the release film 23, making the surface of the adhesive layer 22 near the release film 23 antistatic, thereby ensuring that the surface of the adhesive layer 22 is free from electrostatic adsorption of impurities. The antistatic agent may be, for example, composed of a conductive polymer or a surfactant.

[0037] Furthermore, such as Figures 2-5As shown, a pull strap 26 is provided on the side of the release film 23 away from the adhesive layer 22. The pull strap 26 includes a fixed end 261 and a free end 262. The fixed end 261 is connected to one end of the release film 23, and the free end 262 extends from the other end of the release film 23 along its length. The release film 23 may, for example, include a first end 234 and a second end 235. The fixed end 261 is fixedly connected to the first end 234, and the free end 262 extends out of the second end 235. The pull strap 26 is, for example, a handle strap. The fixed end 261 of the pull strap 26 is fixedly connected to one end of the release film 23 to facilitate the release film 23 peeling off the adhesive layer 22 when the free end 262 of the pull strap 26 is pulled out by the user, thus allowing the adhesive layer 22 to adhere to the electronic device. The free end 262 extends from the other end of the release film 23 to facilitate the user pulling the pull strap 26 and peeling off the adhesive layer 22 along with the release film 23. More specifically, the protective film assembly 20 can contact the electronic device; when the free end 262 is along the length direction of the protective film assembly 20 (i.e.,... Figure 4 When the release film 23 is pulled in the X direction and toward the side away from the fixed end 261, the end of the release film 23 near the fixed end 261 bends toward the electronic device and is wound along the moving direction of the free end 262 to form a winding structure 231. Specifically, when the protective film assembly 20 is placed in the film applicator, and then a film is applied to an electronic device such as a mobile phone, the free end 262 of the pull strap 26 can be pulled to move in the X direction. This causes the end of the release film 23 connected to the fixed end 261 to move in the X direction along with the pull strap 26, so that the first end 234 of the release film 23 can be flipped to the side closer to the mobile phone screen, forming a winding structure 231 that contacts the mobile phone screen. The winding structure 231 can be, for example, a winding structure, that is, the first end 234 of the release film 23 is flipped to the side closer to the mobile phone. After the winding structure 231 contacts the mobile phone, under the action of the pull strap 26, the winding structure 231 will slide on the mobile phone screen, thereby taking away the dust on the mobile phone screen and achieving the effect of cleaning the mobile phone.

[0038] Furthermore, when the protective film assembly 20 comes into contact with the screen of the electronic device, as the release film 23 is peeled off, the winding structure 231 slides along the length of the protective film assembly 20 on the screen. The winding structure 231 removes dust from the phone screen by sliding along it.

[0039] Furthermore, such as Figure 5As shown, a silicone layer 232 is adhered to the side of the winding structure 231 that contacts the screen. The silicone layer 232 is located on the side of the first antistatic layer 24 near the adhesive layer 22. The silicone layer 232 can permeate from the silicone in the adhesive layer 22. By adhering the silicone layer 232 to the side of the winding structure 231 that contacts the screen, the silicone layer 232 can further remove dust from the mobile phone screen when the winding structure 231 slides on the screen.

[0040] Furthermore, the protective film assembly 20 also includes a positioning element to maintain a fixed gap between the protective film assembly 20 and the electronic device. When the release film 23 is torn off from one end relative to the protective film 21, the release film 23 forms a winding structure 231 between the protective film 21 and the electronic device. The winding structure 231 contacts the screen of the electronic device and slides on the screen as the release film 23 is torn off.

[0041] Furthermore, the positioning element is a positioning film 27, which is disposed on the side of the protective film 21 away from the adhesive layer 22. The positioning film 27 can be connected to a positioning post inside the applicator so that the protective film assembly 20 can be positioned inside the applicator.

[0042] [Second Embodiment]

[0043] See Figures 6-9 This utility model provides a film application device 1, which includes, for example, a film applicator 10 and a protective film assembly 20.

[0044] The film applicator 10 includes a receiving cavity 101 for housing electronic devices, such as... Figure 8 As shown, an electronic device, such as a mobile phone, can be housed within the receiving cavity 101 of the screen protector 10. The protective film assembly 20 is disposed on the side of the screen protector 10 near the receiving cavity 101. Specifically, the screen protector 10 can be, for example, a screen protector for applying a screen protector to an electronic device, such as a mobile phone, laptop, or tablet. The protective film assembly 20 can be, for example, a protective film to be applied to the electronic device. Before applying the protective film to the electronic device, it is necessary to ensure that the protective film is not exposed and does not attract dust or other impurities. This can cause dust to be attracted to the screen of the electronic device during the application process, resulting in an unsatisfactory application effect. In this embodiment, the bottom surface of the screen protector 10 can be provided with multiple positioning posts, for example. By placing the protective film assembly 20 between the multiple positioning posts, the protective film assembly 20 is fixed in place, thereby making it easier to apply the protective film assembly 20 to the electronic device. The protective film assembly 20 can be, for example, the protective film assembly 20 described in the first embodiment above.

[0045] In existing technologies, due to the material properties of release films and protective films, static electricity is usually present on the release film or protective film. However, in actual applications, static electricity can attract small impurities, which are then adsorbed onto the protective film during the application process, affecting the application effect. This embodiment of the invention divides the protective film assembly 20 into a protective film 21, an adhesive layer 22, and a release film 23. The adhesive layer 22 is used to adhere to the screen surface of the electronic device. The release film 23 is used to detach from the adhesive layer 22 when the protective film assembly 20 is attached to the electronic device. Since static electricity can attract small impurities and dust, a first antistatic layer 24 is provided on the side of the release film 23 near the adhesive layer 22. This prevents impurities from adsorbing onto the adhesive layer 22 when the release film 23 separates from it. This ensures that when the film application device 1 applies the film to the electronic device, it avoids small impurities being electrostatically attracted to the adhesive layer 22 of the protective film assembly 20 during the application process. This prevents small impurities from adsorbing between the adhesive layer 22 and the electronic device, thereby reducing the adsorption of small impurities during the application process, improving the application effect, and enhancing the user's experience.

[0046] Furthermore, the minimum gap between the release film 23 and the electronic device is not less than twice the thickness of the release film 23. The minimum gap between the release film 23 and the electronic device is also the distance between the release film 23 and the screen of the electronic device in the height direction of the film application device 1. The thickness of the release film can be, for example, in the range of 0.035-0.1 mm. In other embodiments, the gap can be not less than twice the thickness of the release film 23 plus a reserved gap for the release film 23 to roll over, allowing the rolled structure 231 formed by the release film 23 to flip within the gap, ensuring that the rigidity of the rolled structure 231 is sufficient for dust removal. If the rolled structure 231 is too large and the release film 23 is too soft, the rolled structure 231 cannot remove dust.

[0047] Furthermore, the protective film assembly 20 also includes a positioning element to maintain a fixed gap between the protective film assembly 20 and the electronic device. When the release film 23 is torn open from one end relative to the protective film 21, the release film 23 forms a winding structure 231 between the protective film 21 and the electronic device. The winding structure 231 contacts the screen of the electronic device and slides on the screen as the release film 23 is removed. The positioning element is a positioning film 27, which is disposed on the side of the protective film 21 away from the adhesive layer 22. The positioning film 27 cooperates with the applicator 10 to form a gap between the release film 23 and the electronic device. The positioning film 27 can be connected to a positioning post within the applicator 10 so that the protective film assembly 20 can be positioned within the applicator 10 or above the receiving cavity 101.

[0048] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the inventive purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A protective film assembly (20), characterized in that, include: Protective film (21); An adhesive layer (22) is disposed on one side of the protective film (21); Release film (23) is disposed on the side of the adhesive layer (22) away from the protective film (21) and is in contact with the adhesive layer (22); The release film (23) has a first antistatic layer (24) on the side near the adhesive layer (22), and the first antistatic layer (24) covers the bonding surface between the release film (23) and the protective film (21). The release film (23) has a second antistatic layer (25) on the side away from the adhesive layer (22), and the second antistatic layer (25) covers the surface of the release film (23) away from the adhesive layer (22); the adhesive layer (22) has a third antistatic layer (28) on the surface of the adhesive layer (22) close to the release film (23), and the third antistatic layer (28) covers the surface of the adhesive layer (22) close to the release film (23).

2. The protective film assembly (20) according to claim 1, characterized in that, The antistatic layer is a layered structure made of a composite material containing an antistatic agent, and the antistatic agent is distributed in a dispersed form in the antistatic layer.

3. The protective film assembly (20) according to claim 1, characterized in that, A pull strap (26) is provided on the side of the release film (23) away from the adhesive layer (22). The pull strap (26) includes a fixed end (261) and a free end (262). The fixed end (261) is connected to one end of the release film (23), and the free end (262) extends from the other end of the release film (23) along the length direction of the release film (23). When the free end (262) is pulled along the length direction of the protective film assembly (20) toward the side away from the fixed end (261), the end of the release film (23) near the fixed end (261) bends toward the side away from the protective film (21) and is wound along the moving direction of the free end (262) to form a winding structure (231).

4. The protective film assembly (20) according to claim 3, characterized in that, A silicone layer (232) is bonded to the side of the release film (23) near the adhesive layer (22), and the silicone layer (232) is located on the side of the first antistatic layer (24) near the adhesive layer (22).

5. A film application device (1), characterized in that, include: The film applicator (10) has a receiving slot (101) for accommodating electronic devices; The protective film assembly (20) as described in any one of claims 1-4 is disposed on the side of the applicator (10) where the receiving groove (101) is provided, and the release film (23) is located between the electronic device and the protective film (21).

6. The film-applying device (1) according to claim 5, characterized in that, It also includes a positioning element to maintain a fixed gap between the protective film assembly (20) and the electronic device. When the release film (23) is torn off from one end relative to the protective film (21), the release film (23) forms a winding structure (231) between the protective film (21) and the electronic device. The winding structure (231) contacts the screen of the electronic device and slides on the screen as the release film (23) is torn off.

7. The film-applying device (1) according to claim 6, characterized in that, The minimum gap between the release film (23) and the electronic device is not less than twice the thickness of the release film (23).

8. The film-applying device (1) according to claim 7, characterized in that, The positioning element is a positioning film (27), which is disposed on the side of the protective film (21) away from the adhesive layer (22). The positioning film (27) cooperates with the film applicator (10) to form a gap between the release film (23) and the electronic device.

Images