An anti-glare protective film that is easy to tear

Abstract

This utility model relates to the field of functional thin film materials. The disclosed easy-to-tear anti-reflective protective film comprises an antibacterial layer, an anti-reflective layer, a base film layer, and an adhesive layer. The antibacterial layer contains antibacterial materials such as nano-silver, effectively inhibiting bacteria and creating a hygienic environment for the protected object. The anti-reflective layer uses materials such as silica to reduce light reflection and improve visual clarity. The base film layer uses materials such as polyethylene terephthalate to provide good support and ensure structural stability. The adhesive layer has strong and weak adhesive zones. The strong adhesive zones are located at both ends or the outer periphery of the ring to enhance edge fixation and prevent displacement; the weak adhesive zones are located in the middle or center, with an appropriate thickness for easy tearing and reducing the risk of accidental tearing. This reasonable layout ensures uniform stress distribution, and the weak adhesive zones also buffer external forces. This layout is highly versatile, convenient for production, and helps improve efficiency, stabilize quality, and reduce costs.

Description

Technical Field

[0001] This utility model relates to the field of functional thin film materials, and in particular to an anti-reflective protective film that is easy to tear. Background Technology

[0002] In today's product protection field, protective films are widely used, especially in scenarios where there are high requirements for panel protection and appearance.

[0003] In the past, traditional protective films were commonly used to protect the board surfaces during product manufacturing. However, in earlier products, before the protective film was reinforced with perforated lines, workers often didn't completely remove it when peeling it off to maintain cleanliness. This incomplete removal of the protective film left it in place. This practice revealed several problems in practical application. In indoor environments, due to wind, the peeled portion of the protective film would sway. At this time, the board surface was often in critical stages such as glue application, and the swaying protective film could easily touch the already glued areas. This not only disrupted the overall glue application effect, leading to defects and unevenness on the glued surface, affecting product quality and performance, but also potentially necessitated re-applying the glue, increasing production and time costs. Furthermore, from an aesthetic perspective, having a small portion peeled off and curled up on both sides of each board significantly impacted the overall appearance of the work area, creating a cluttered and disorganized look that did not meet the requirements of a clean and orderly work environment in modern production. Meanwhile, traditional protective films also have shortcomings in anti-reflective performance, failing to effectively reduce light reflection and affecting the visual effect of products under different lighting conditions, thus reducing the product's display effect and user experience. Moreover, without proper design assistance during the tearing process, they are either difficult to tear or easily damage the board surface. Therefore, it is urgent to develop a protective film that is easy to tear, has good anti-reflective performance, and solves the above-mentioned practical application problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses an easy-to-tear anti-reflective protective film that is easy to peel off, has good antibacterial effect, and is anti-reflective.

[0005] This utility model discloses an easy-to-tear anti-reflective protective film, which includes a protective film body, the protective film body including, from top to bottom, an antibacterial layer, an anti-reflective layer, a base film layer and an adhesive layer. The antibacterial layer is a coating containing at least one of nano-silver, zinc oxide, titanium dioxide or quaternary ammonium salt compounds. The anti-reflective layer is a coating containing at least one of silicon dioxide or aluminum oxide. The base film layer is a coating containing at least one of polyethylene terephthalate or thermoplastic polyurethane. The adhesive layer is a coating containing at least one of silicone or acrylate polymer.

[0006] Furthermore, a protruding tear is provided on one side of the protective film body, and several inwardly recessed pre-cut lines are provided on one side of the protective film body.

[0007] Furthermore, the depth of the inward indentation of the pre-cut line is 40%-80% of the thickness of the protective film body.

[0008] Furthermore, the thickness of the antibacterial layer is 0.5-2.0 μm, the thickness of the anti-reflective layer is 50-200 μm, the thickness of the base film layer is 50-150 μm, and the thickness of the adhesive layer is 10-30 μm.

[0009] Furthermore, the adhesive layer includes a strong adhesion region and a weak adhesion region. The strong adhesion region is a coating containing at least one of silicone or acrylate polymers, and the weak adhesion region is a coating containing at least one of silicone or acrylate polymers mixed with polyether silicone oil.

[0010] Furthermore, the strong adhesion area occupies 30-40% of the total area of ​​the adhesive layer, while the weak adhesion area occupies 60-70% of the total area of ​​the adhesive layer.

[0011] Furthermore, the strong adhesion zone is set at both ends of the adhesive layer, and the weak adhesion zone is set in the middle of the adhesive layer.

[0012] Furthermore, the width of one side of the strong adhesion zone accounts for 15-20% of the total width of the adhesive layer, and the thickness is 10-15 μm, while the thickness of the weak adhesion zone is 5-8 μm.

[0013] Furthermore, the strong adhesion zone is arranged in a ring around the periphery of the adhesive layer, while the weak adhesion zone is arranged in the center of the adhesive layer.

[0014] Furthermore, the annular border of the strong adhesion region has a width of 10-15% and a thickness of 12-18 μm, while the central region of the weak adhesion region has a thickness of 4-7 μm.

[0015] Beneficial Effects: The antibacterial layer of the easy-to-tear anti-reflective protective film of this application effectively inhibits bacteria, providing a hygienic environment for the protected object and reducing damage caused by bacterial growth. The anti-reflective layer effectively reduces light reflection, improves visual effect, and makes viewing clearer. The base film layer provides good support, ensuring the overall structural stability of the protective film and preventing deformation. The strong adhesive area of ​​the adhesive layer, through reasonable material selection and placement at both ends or the outer periphery, enhances edge fixation and prevents the protective film from shifting, lifting, or falling off. The weak adhesive area, located in the middle or center with appropriate thickness, makes it easy for users to find the starting point to easily tear the protective film, reducing the risk of accidental tearing. The layout and thickness design of the strong and weak adhesive areas allow for uniform stress distribution, and the weak adhesive area can also buffer external impacts, protecting both the protective film and the protected object. The layout of the strong and weak adhesive areas has good versatility for protected objects of different shapes and sizes, and can be widely applied. The fixed layout facilitates production process operation, helps improve production efficiency, ensures stable product quality, and reduces costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the protective film body in one embodiment of this application.

[0017] Figure 2 This is a schematic diagram illustrating the actual use of the anti-reflective protective film in the embodiments of this application.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] In the diagram: protective film body 100, antibacterial layer 11, anti-reflective layer 12, base film layer 13, adhesive layer 14, tear opening 141. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the specific embodiments of the present invention will be clearly and completely described below.

[0021] This utility model discloses an easy-to-tear anti-reflective protective film, which includes a protective film body 100. The protective film body 100 includes, from top to bottom, an antibacterial layer 11, an anti-reflective layer 12, a base film layer 13, and an adhesive layer 14. The antibacterial layer 11 is a coating containing at least one of nano-silver, zinc oxide, titanium dioxide, or quaternary ammonium salt compounds. The anti-reflective layer 12 is a coating containing at least one of silicon dioxide or aluminum oxide. The base film layer 13 is a coating containing at least one of polyethylene terephthalate or thermoplastic polyurethane. The adhesive layer 14 is a coating containing at least one of silicone or acrylate polymers. The anti-reflective protective film of this application integrates multiple protective functions. The antibacterial layer 11 provides antibacterial protection; the nano-silver, zinc oxide, and titanium dioxide coatings effectively inhibit bacterial growth, achieving an antibacterial rate of over 99%, meeting the high hygiene requirements of medical and food applications. The anti-reflective layer 12 undergoes optical optimization; the anti-reflective layer formed by silicon dioxide and aluminum oxide nanoparticles reduces reflectivity to below 0.8% through a nanoscale surface structure. Compared to the 3-5% reflectivity of traditional films, this significantly improves the contrast and readability of the luminescent protective film. The base film layer 13 provides mechanical reinforcement; the PET / TPU base film layer 13 provides a tensile strength of over 150MPa, effectively resisting scratches and impacts. The attached diagram shows the actual application of the anti-reflective protective film. Figure 2 As shown. Anti-reflective protective film as... Figure 3 As shown.

[0022] In one embodiment, a protruding tear opening 141 is provided on one side of the protective film body 100, and several inwardly recessed pre-cut lines are provided on the same side. The protruding tear opening 141 provides a clear and convenient gripping area for the user, allowing the user to hook it with their fingers or tools and apply force to tear the protective film, eliminating the need to search for the edge of the film or use a sharp object to pry it open, thus reducing the difficulty of operation. The pre-cut lines are arranged along a specific direction, which can guide the tearing direction, so that the protective film is torn along a preset path, avoiding problems such as tearing direction deviation, damage to the protective film, or difficulty in tearing completely caused by random tearing, making the tearing process smoother and more controllable. The pre-cut lines weaken the structural strength of the protective film at these locations, so that when external force is applied, the protective film will break preferentially along the pre-cut lines, reducing the overall tearing force.

[0023] As one implementation method, the depth of the inward indentation of the pre-cut line is 40%-80% of the thickness of the protective film body 100. When the pre-cut line is indented to a certain depth, it can significantly weaken the structural strength of the protective film at these locations, making it easier for the protective film to break along the pre-cut line when external force is applied, reducing the force required to tear it, and allowing users to tear the protective film more easily.

[0024] In one implementation, the antibacterial layer 11 has a thickness of 0.5-2.0 μm, ensuring it contains sufficient antibacterial components such as nano-silver, zinc oxide, titanium dioxide, or quaternary ammonium compounds to form an effective antibacterial barrier. This barrier can fully contact and inhibit or kill bacteria, fungi, and other microorganisms on the protective film surface, reducing bacterial growth and spread, and maintaining the cleanliness and hygiene of the protected object's surface. The anti-reflective layer 12 has a thickness of 50-200 μm. Containing silica or aluminum oxide, this layer effectively alters the refraction and reflection paths of light, reducing light reflection on the protective film surface. This allows the protected object to be displayed more clearly under various lighting conditions, improving visual effects and reducing visual interference and eye fatigue caused by reflection. The base film layer 13 has a thickness of 50-150 μm, providing sufficient strength and flexibility for the entire protective film. This allows it to withstand certain tensile, compressive, and frictional forces, preventing breakage or deformation and ensuring the integrity and stability of the protective film during use. The adhesive layer 14 has a thickness of 10-30μm, which ensures that the adhesive layer 14 contains sufficient adhesive components such as silicone or acrylate polymers, so that the protective film can adhere tightly to the surface of the protected object, providing reliable adhesion and ensuring that the protective film will not easily fall off during use, thus effectively playing its protective role.

[0025] In one embodiment, the adhesive layer 14 includes a strong adhesion region and a weak adhesion region. The strong adhesion region is a coating containing at least one of silicone or acrylate polymers, and the weak adhesion region is a coating containing at least one of silicone or acrylate polymers mixed with polyether silicone oil. The strong adhesion region, composed of a coating containing at least one of silicone or acrylate polymers, possesses strong adhesiveness, ensuring that the protective film remains firmly attached to critical areas or areas requiring special fixation after being applied to the surface of the protected object. This prevents the protective film from shifting or peeling, ensuring that it stably performs its protective function. The weak adhesion region uses a coating containing silicone or acrylate polymers mixed with polyether silicone oil. The addition of polyether silicone oil reduces the surface energy of the coating, resulting in relatively low adhesion in the weak adhesion region. This allows for easy tearing of the protective film by starting with the weak adhesion region, improving ease of operation and making it convenient for users to easily remove the protective film when needing to replace it or operate on the protected object. The strong-adhesion area uses a pure silicone and acrylic formula with an initial tack of ≥15N / 25mm, ensuring no edge lifting at 360°. The weak-adhesion area is modified with polyether silicone oil, reducing the peel force to 5-8N / 25mm, allowing for easy tearing with one hand.

[0026] In one implementation method, the strong adhesion area occupies 30-40% of the total area of ​​the adhesive layer 14, while the weak adhesion area occupies 60-70%. Although the strong adhesion area accounts for a relatively small proportion, it is concentrated in the areas requiring key fixation, providing sufficient anchoring points for the protective film. This ensures that the protective film will not easily detach from the surface of the protected object when subjected to external forces, such as wind, friction, or minor impacts, maintaining overall stability and effectively protecting the protected object. The larger proportion of the weak adhesion area means that there is a larger area available for operation when tearing the protective film. Users can more easily find a point of leverage and easily tear the protective film starting from the weak adhesion area, reducing the difficulty and force required for tearing and improving ease of use.

[0027] In one implementation, strong adhesive areas are respectively located at both ends of the adhesive layer 14, while weak adhesive areas are located in the middle of the adhesive layer 14. Placing the strong adhesive areas at both ends of the adhesive layer 14 effectively enhances the fixation of the protective film edges. Because in actual use, the edges of the protective film are most susceptible to external forces, such as being lifted or scratched, the strong adhesive areas at both ends ensure a tight fit between the protective film and the edge of the protected object, preventing the edges from lifting or falling off, and ensuring the protective film can continuously and stably perform its protective function. If the weak adhesive areas were not located in the middle but scattered in other positions, users might accidentally touch and tear the weak adhesive areas when they don't want to tear the protective film, affecting its normal use. Concentrating the weak adhesive areas in the middle and having strong adhesive areas at both ends effectively avoids this accidental tearing; the weak adhesive areas in the middle will only be actively operated when the user needs to tear the protective film.

[0028] In one implementation, the width of the strong-adhesion area on one side accounts for 15-20% of the total width of the adhesive layer 14, and its thickness is 10-15 μm. The thickness of the weak-adhesion area is 5-8 μm. The strong-adhesion area's width of 15-20% ensures a sufficiently wide, strongly adhesive region at the edge of the protective film for stable adhesion, preventing the edges from lifting or falling off during use. The 10-15 μm thickness ensures sufficient adhesive material in the strong-adhesion area to provide durable and reliable adhesion, enhancing bonding to the surface of the protected object and resisting the effects of various external forces on the edges. The relatively thin, 5-8 μm thick weak-adhesion area allows users to easily peel the protective film off the protected object with less force when needed, providing good operational convenience and reducing the risk of damage to the protective film and the protected object during the peeling process.

[0029] In one implementation, a strong adhesion zone is arranged in a ring around the periphery of the adhesive layer 14, while a weak adhesion zone is arranged in the center of the adhesive layer 14. The ring-shaped strong adhesion zone around the periphery of the adhesive layer 14 provides uniform and comprehensive fixation to the entire edge of the protective film. Regardless of the direction from which external force is applied, the edge of the protective film is effectively fixed, greatly improving the stability of the protective film in various complex usage environments and preventing it from detaching or peeling off from any edge. The weak adhesion zone in the center, when the protective film is not torn, can buffer external pressure and impact on the central area of ​​the protective film to a certain extent, avoiding changes in adhesion between the central area and the protected object or affecting the surface of the protected object due to direct force on the central area.

[0030] In one implementation, the annular border width of the strong adhesion zone is 10-15%, and the thickness is 12-18 μm. The central area of ​​the weak adhesion zone has a thickness of 4-7 μm. The 10-15% width of the annular border of the strong adhesion zone creates a moderately wide strong adhesion area at the edge of the protective film, ensuring firm adhesion without compromising the overall performance or increasing cost due to an excessively wide border. The 12-18 μm thickness further enhances the edge adhesion and durability, allowing the protective film to better resist environmental erosion and damage during long-term use, ensuring that edge adhesion remains at a high level. The 4-7 μm thickness of the central area of ​​the weak adhesion zone results in lower adhesion, further highlighting its easy-to-tear characteristic. When it is necessary to replace or remove the protective film, users can more easily start tearing from the central weak adhesion zone, reducing the impact on the protected surface and lowering the possibility of residual adhesive. It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An anti-glare protective film which is easily peeled, characterized by include: The protective film body comprises, from top to bottom, an antibacterial layer, an anti-reflective layer, a base film layer, and an adhesive layer; The antibacterial layer is a coating containing at least one of nano-silver, zinc oxide, titanium dioxide, or quaternary ammonium salt compounds; The anti-reflective layer is a coating containing at least one of silicon dioxide or aluminum oxide; The base film layer is a coating containing at least one of polyethylene terephthalate or thermoplastic polyurethane; The adhesive layer is a coating containing at least one of silicone or acrylate polymers.

2. The easy-to-tear anti-reflective protective film according to claim 1, characterized in that: One side of the protective film body has a protruding tear, and the other side of the protective film body has several inwardly recessed pre-cut lines.

3. The easy-to-tear anti-reflective protective film according to claim 2, characterized in that: The depth of the inward indentation of the pre-cut line is 40%-80% of the thickness of the protective film body.

4. The easy-to-tear anti-reflective protective film according to claim 1, characterized in that: The thickness of the antibacterial layer is 0.5-2.0 μm; The thickness of the anti-reflective layer is 50-200μm; The thickness of the base film layer is 50-150 μm; The thickness of the adhesive layer is 10-30μm.

5. The easy-to-tear anti-reflective protective film according to claim 1, characterized in that: The adhesive layer includes a strong adhesive area and a weak adhesive area. The strong adhesive area is a coating containing at least one of silicone or acrylate polymers, and the weak adhesive area is a coating containing at least one of silicone or acrylate polymers mixed with polyether silicone oil.

6. The easy-to-tear anti-reflective protective film according to claim 5, characterized in that: The strong adhesion area accounts for 30-40% of the total area of ​​the adhesive layer, while the weak adhesion area accounts for 60-70% of the total area of ​​the adhesive layer.

7. The easy-to-tear anti-reflective protective film according to claim 6, characterized in that: The strong adhesion zone is set at both ends of the adhesive layer, and the weak adhesion zone is set in the middle of the adhesive layer.

8. The easy-to-tear anti-reflective protective film according to claim 7, characterized in that: The width of one side of the strong adhesion zone accounts for 15-20% of the total width of the adhesive layer, and the thickness is 10-15μm; The thickness of the weakly viscous region is 5-8 μm.

9. The easy-to-tear anti-reflective protective film according to claim 6, characterized in that: The strong adhesion zone is arranged in a ring around the periphery of the adhesive layer, while the weak adhesion zone is arranged in the center of the adhesive layer.

10. The easy-to-tear anti-reflective protective film according to claim 9, characterized in that: The width of the annular border of the strong adhesion zone is 10-15%, and the thickness is 12-18μm; The thickness of the central region of the weakly viscous zone is 4-7 μm.

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