Scratch-resistant film with pre-segmentation structure and coiled material of scratch-resistant film

Abstract

The utility model discloses a scratch-resistant film with a pre-cutting structure, which belongs to the technical field of protective films and comprises a base material layer, a scratch-resistant layer, a pressure-sensitive adhesive layer and a release paper layer, a plurality of film main bodies are arranged along the length direction of a coiled material, and a first pre-cutting mark is arranged between every two adjacent film main bodies; each diaphragm main body comprises a first area and a second area which are arranged in parallel; the first area is provided with a side surface covering unit, the width of the side surface covering unit is matched with the total unfolding width of four continuous side surfaces of the box body, and the surface of the side surface covering unit is provided with a positioning point array; the second area is provided with an end face covering unit which comprises two independent diaphragm units arranged side by side, and the width of each diaphragm unit is matched with the width of the top face or the bottom face of the box body. And second pre-cutting marks surround the edges of the side surface covering units and the end surface covering units. By means of the partition design and the pre-segmentation structure, material loss caused by cutting errors or splicing dislocation is avoided, and operation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of protective film technology, specifically relating to a scratch-resistant film with a pre-segmented structure and its roll material. Background Technology

[0002] Scratch-resistant film, as a key protective material for the outer packaging of electronic products, has become an important choice for enhancing the appearance and texture of high-end products such as mobile phone boxes and smart device packaging due to its outstanding wear and scratch resistance. With the rapid development of the consumer electronics industry, the application scope of this type of scratch-resistant film continues to expand. Currently, scratch-resistant film is generally stored in roll form, requiring cutting equipment to cut it to the box size during use. This process has significant shortcomings: First, when dealing with scattered packaging needs, frequent starting and stopping of large cutting equipment leads to high energy consumption and costs; second, manual cutting is prone to dimensional deviations and material waste, affecting packaging quality and economy; third, for boxes that need to be completely covered on all six sides, existing technology struggles to achieve simultaneous and precise cutting, resulting in operational inconvenience and potential appearance defects during secondary application.

[0003] In the prior art, patent CN 221090182 U proposes a PE film with dotted breaks, which simplifies the cutting operation by pre-setting transverse and longitudinal dotted breaks. However, this solution has significant limitations: the dotted breaks penetrate the entire structure of the film, severely weakening the mechanical strength of the roll and making it prone to breakage during transportation; the grid-like segmentation method is only suitable for planar cutting and cannot adapt to the three-dimensional film application requirements of hexahedral packaging; the dotted breaks lack a depth control mechanism, resulting in large fluctuations in the tearing force and affecting the reliability of use.

[0004] Therefore, there is an urgent need to develop a pre-segmented structure for anti-scratch film that combines ease of operation with material conservation. Summary of the Invention

[0005] In response to the problems in related technologies, this utility model proposes a scratch-resistant film with a pre-segmented structure to solve the technical problems of inconvenient cutting operation and material waste in existing scratch-resistant films.

[0006] The technical solution of this utility model is achieved as follows: a scratch-resistant film with a pre-segmented structure includes a substrate layer, a scratch-resistant layer, a pressure-sensitive adhesive layer and a release paper layer, and multiple film bodies are arranged along the length of the roll, with a first pre-cut groove extending along the width of the roll between two adjacent film bodies; each film body includes a first region and a second region arranged side by side.

[0007] The first region is provided with a side covering unit, the width of which matches the total unfolded width of the four consecutive sides of the box, and the surface of the side covering unit is provided with an array of positioning points for auxiliary positioning; the second region is provided with an end face covering unit, the end face covering unit includes two independent diaphragm units side by side, and the width of each diaphragm unit matches the width of the top or bottom surface of the box; the edges of the side covering unit and the end face covering unit are surrounded by a second pre-cut.

[0008] The depth of each pre-cut is 30% to 50% of the total thickness of the substrate layer and the anti-scratch layer, and does not penetrate into the pressure-sensitive adhesive layer; the release paper layer remains intact without cuts in the area corresponding to the pre-cut.

[0009] This invention, through its partitioned design and pre-segmented structure, avoids material loss caused by cutting errors or misaligned splicing, thus improving operational efficiency. Furthermore, the release paper layer remains intact and uncut in the pre-cut area, ensuring the roll material maintains its overall strength during transport and preventing breakage risks caused by through-line breaks.

[0010] As a further improvement to the above solution, the first pre-cut has a wavy shape in the width direction of the roll material, with a wave amplitude of 1mm to 3mm. By setting the first pre-cut in a wavy shape, the natural stress concentration points formed by the crests and troughs guide the breakage, allowing the operator to easily and accurately tear off a single film body along a predetermined path with only a small pulling force. This effectively avoids the accidental tearing or tearing difficulties that are easily caused by straight pre-cuts, improving the convenience and reliability of the cutting operation.

[0011] As a further improvement to the above solution, the second pre-cut is an intermittent cutting line, consisting of alternating micro-cuts of 0.2mm-0.5mm in length and uncut sections, with the total length of the cutting line accounting for 70%-85% of the pre-cut length. This intermittent second pre-cut, while ensuring the integrity of the release paper, precisely guides the tearing path with the micro-cuts, significantly reducing the tearing force required; the uncut sections maintain the connection strength between the cover units, preventing accidental separation during transportation. Together, these two features allow the operator to easily and accurately tear off individual side or end cover units along the preset boundaries by feel, achieving rapid separation without tool assistance, greatly improving film application efficiency and operational convenience.

[0012] As a further improvement to the above solution, the micro-incision has a V-shaped groove structure, with the opening of the V-shaped groove facing the outer side of the membrane and the bottom angle of the groove being 30°-45°. The V-shaped groove micro-incision creates a tip stress concentration effect in the initial stage of tearing, reducing the tearing force; at the same time, the V-shaped structure precisely guides the tearing force to extend outward along a predetermined path to ensure a smooth tearing process and neat boundaries.

[0013] As a further improvement to the above solution, the positioning point array includes main positioning points and auxiliary positioning points; the diameter of the main positioning points is 0.8mm to 1mm, and the diameter of the auxiliary positioning points is 0.3mm to 0.5mm, with a spacing ratio of 1:0.3 to 0.6; the main positioning points are located at the projection positions of the corner points of the box, and the auxiliary positioning points are distributed along the edges of the box. The large-sized main positioning points accurately mark the corner points of the box, serving as the core positioning reference; the small-sized auxiliary positioning points are distributed along the edges, extending the positioning reference lines. Together, they significantly improve the spatial position recognition accuracy of the covering unit during film application, achieving rapid and accurate alignment with the corner points and edges of the box, effectively avoiding manual application misalignment, and ensuring no misalignment defects in six-sided coverage.

[0014] As a further improvement to the above solution, a peelable connecting strip is provided at the junction of the first and second regions. The thickness of the pressure-sensitive adhesive layer between the connecting strip and the release paper layer is less than the thickness of the pressure-sensitive adhesive layer in other regions. The peelable connecting strip forms a clearly visible and tactilely distinguishable weak adhesive area at the junction of the first and second regions, allowing the operator to intuitively distinguish between the side and end face covering units. In the six-sided covering operation, the connecting strip can be easily peeled off to separate the two regions, facilitating step-by-step and precise pasting, improving operational efficiency and covering quality.

[0015] As a further improvement to the above solution, the pre-cut depth of the peelable connecting strip is 70% to 80% of the total thickness of the substrate layer and the anti-scratch layer, and fluorescent marking strips are provided on both sides. The increased pre-cut depth significantly weakens the structural strength of the connecting strip, making it easier to peel off accurately along the preset path; the fluorescent marking strips on both sides visually highlight the boundary between the first and second areas. Together, these two features enable the operator to quickly identify and easily tear off the connecting strip, achieving reliable separation of the side and end face covering units, and providing clear operational guidance for step-by-step and orderly pasting.

[0016] As a further improvement to the above solution, each of the independent diaphragm units in the second region is provided with an extension wing along its circumferential edge. The extension wing extends outward from the diaphragm unit by 5mm-8mm, and a crease mark is provided between the extension wing and the diaphragm unit. The extension wings on the circumferential edge significantly increase the bonding area between the diaphragm unit and the box surface, providing additional adhesion to the edges; the crease mark ensures that the extension wing can be precisely bent and tightly fit the corners or sides of the box, effectively overcoming the stress concentration and insufficient adhesion problems that easily occur when traditional flat diaphragms cover the corners, significantly improving the fit and anti-warping ability of the end face coverage, and ensuring the firmness during long-term use.

[0017] As a further improvement to the above solution, the surface of the scratch-resistant layer is provided with a nano-anti-fouling coating, and the substrate layer is a BOPP multilayer co-extruded structure, which sequentially includes a wear-resistant layer, a core layer, and a barrier layer. The nano-anti-fouling coating significantly reduces surface energy, effectively resisting the adhesion of contaminants such as fingerprints and oil stains, and maintaining the clean appearance of the packaging; the BOPP multilayer co-extruded substrate enhances surface hardness through the wear-resistant layer, ensures overall strength through the core layer, and isolates water and oxygen penetration through the barrier layer, synergistically improving the mechanical wear resistance and protective capability of the scratch-resistant film.

[0018] A scratch-resistant film roll includes a scratch-resistant film with a pre-segmented structure as described above. The partitioned design and pre-segmented structure avoid material loss due to cutting errors or misaligned splicing, thus improving work efficiency.

[0019] Beneficial effects:

[0020] (1) Pre-segmented structure enables cutting-free operation and improves work efficiency: By setting a first pre-cut and a second pre-cut on the edge of the film unit on the roll, and the depth of the pre-cut is precisely controlled to be 30%-50% of the total thickness of the substrate layer and the anti-scratch layer, without penetrating the pressure-sensitive adhesive layer, the operator can easily tear off the complete film along the pre-cut without relying on the cutting equipment, eliminating the risk of size deviation of manual cutting, and avoiding the energy consumption of frequent start-stop of large cutting equipment in the scenario of scattered orders, significantly reducing the operating cost of small packaging needs and improving work efficiency.

[0021] (2) Three-dimensional partition design adapts to hexahedral packaging, reducing material waste: The main body of the film adopts an innovative partition structure: the side covering unit of the first area is precisely matched with the total width of the four sides of the box when unfolded, and the second area has two independent end face covering units corresponding to the top / bottom respectively. The second pre-cut lines around the edges of each unit form a closed cutting boundary. With the auxiliary positioning function of the positioning point array, the film can be taken out of the hexahedral box at one time and laminated synchronously, avoiding material loss caused by cutting errors or splicing misalignment.

[0022] (3) The integrity of the release paper and the depth of the pre-cut mark work together to ensure product reliability: The release paper layer remains intact and without cuts in the pre-cut mark area, forming a composite structure with the pre-cut mark of controlled depth. During transportation, the release paper maintains the overall strength of the roll material, avoiding the risk of breakage caused by through-point breakage; when in use, the release paper serves as the basic support layer for tearing, ensuring stable and reliable tearing force of the pre-cut mark. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an exploded view of the present invention;

[0025] Figure 3This is a schematic diagram of the partitioning of this utility model;

[0026] Figure 4 This is a cross-sectional schematic diagram of the second pre-cut of this utility model;

[0027] Figure label:

[0028] J1, Roll material;

[0029] Z1, Substrate layer; Z2, Scratch-resistant layer; Z3, Pressure-sensitive adhesive layer; Z4, Release paper layer;

[0030] 1. Diaphragm body;

[0031] 11. First region; 111. Side coverage unit; 1121. Main positioning point; 1122. Auxiliary positioning point;

[0032] 12. Second area; 121. End face covering unit; 122. Diaphragm unit; 1221. Extended wing; 1222. Crease marking;

[0033] 2. First pre-cut mark;

[0034] 3. Second pre-cut mark; 31. Micro-incision; 32. Uncut segment;

[0035] 4. Connecting strip; 41. Fluorescent marking strip. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In the description of this utility model, it should be understood that the term "several" means "at least one", and the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Example:

[0039] like Figures 1-4As shown, this embodiment provides a scratch-resistant film roll J1, which avoids material loss caused by cutting errors or splicing misalignment through partition design and pre-segmentation structure, thereby improving the efficiency of box covering operation.

[0040] Specifically, the product includes a scratch-resistant film with a pre-segmented structure. The scratch-resistant film comprises a substrate layer Z1, a scratch-resistant layer Z2, a pressure-sensitive adhesive layer Z3, and a release paper layer Z4. In this embodiment, the surface of the scratch-resistant layer Z2 is coated with a nano-anti-fouling coating, such as fluorosilicone-modified acrylic resin. The substrate layer Z1 is a BOPP (Biaxially Oriented Polypropylene Film) multilayer co-extruded structure, sequentially comprising a wear-resistant layer, a core layer, and a barrier layer. The thicknesses of these three layers are 5-12 μm, 20-50 μm, and 3-8 μm, respectively. The nano-anti-fouling coating effectively resists the adhesion of contaminants such as fingerprints and oil stains, maintaining a clean appearance for the packaging. The BOPP multilayer co-extruded substrate enhances surface hardness through the wear-resistant layer, ensures overall strength through the core layer, and isolates water and oxygen penetration through the barrier layer, synergistically improving the mechanical wear resistance and protective capabilities of the scratch-resistant film.

[0041] Multiple diaphragm bodies 1 are arranged along the length of the roll material J1, and a first pre-cut 2 extending along the width direction of the roll material J1 is provided between two adjacent diaphragm bodies 1. In this embodiment, the first pre-cut 2 has a wavy shape in the width direction of the roll material J1, with a wave amplitude of 1mm to 3mm. By setting the first pre-cut 2 in a wavy shape, the natural stress concentration points formed by the wave crests and troughs guide the breakage, allowing the operator to easily and accurately tear off a single diaphragm body 1 along a predetermined path with only a small pulling force. This effectively avoids the accidental tearing or tearing difficulties that are easily caused by straight pre-cut creases, improving the convenience and reliability of the cutting operation.

[0042] Each diaphragm body 1 includes a first region 11 and a second region 12 arranged side by side. In this embodiment, a peelable connecting strip 4 is provided at the junction of the first region 11 and the second region 12. The thickness of the pressure-sensitive adhesive layer Z3 between the connecting strip 4 and the release paper layer Z4 is less than the thickness of the pressure-sensitive adhesive layer Z3 in other regions. The peelable connecting strip 4 forms a clearly visible and tactilely distinguishable weak adhesive area at the junction of the first region 11 and the second region 12, allowing the operator to intuitively distinguish between the side and end face covering units 121. In the six-sided covering operation, the connecting strip 4 can be easily peeled off to separate the two regions, facilitating step-by-step and precise pasting, improving operational efficiency and covering quality.

[0043] In this embodiment, the pre-cut depth of the peelable connecting strip 4 is 70% to 80% of the total thickness of the substrate layer Z1 and the anti-scratch layer Z2, and fluorescent marking strips 41 are provided on both sides. The increased pre-cut depth significantly weakens the structural strength of the connecting strip 4, making it easier to peel off accurately along the preset path; the fluorescent marking strips 41 on both sides visually highlight the boundary between the first and second regions 12. Together, these two features enable the operator to quickly identify and easily tear off the connecting strip 4, achieving reliable separation of the side and end face covering units 121, and providing clear operational guidance for step-by-step and orderly pasting.

[0044] The first region 11 is provided with a side covering unit 111. The width of the side covering unit 111 matches the total unfolded width of the four continuous sides of the box. The surface of the side covering unit 111 is provided with an array of auxiliary positioning points. In this embodiment, the positioning point array includes a main positioning point 1121 and auxiliary positioning points 1122. The main positioning point 1121 has a diameter of 0.8mm to 1mm, and the auxiliary positioning point 1122 has a diameter of 0.3mm to 0.5mm, with a spacing ratio of 1:0.3 to 0.6. The main positioning point 1121 is located at the projection position of the corner point of the box, and the auxiliary positioning points 1122 are distributed along the edge line of the box. The large-sized main positioning point 1121 accurately marks the corner point of the box as the core positioning reference; the small-sized auxiliary positioning point 1122 is distributed along the edge line, extending the positioning reference line. The two work together to significantly improve the spatial position recognition accuracy of the covering unit when applying the film, achieving rapid and accurate alignment with the corner point and edge line of the box, effectively avoiding manual application offset, and ensuring no misalignment defects in six-sided coverage.

[0045] The second region 12 is provided with an end-face covering unit 121, which includes two independent diaphragm units 122 arranged side by side. The width of each diaphragm unit 122 matches the width of the top or bottom surface of the box. In this embodiment, each independent diaphragm unit 122 in the second region 12 has an extension wing 1221 on its circumferential edge. The extension wing 1221 extends outward from the diaphragm unit 122 for a length of 5mm-8mm, and a crease mark 1222 is provided between the extension wing 1221 and the diaphragm unit 122. The extension wing 1221 on the circumferential edge significantly increases the bonding area between the diaphragm unit 122 and the surface of the box, providing additional adhesion to the edge. The crease mark 1222 ensures that the extension wing 1221 can be accurately bent and tightly fitted to the corners or sides of the box, effectively overcoming the stress concentration and insufficient adhesion problems that easily occur when traditional flat diaphragms cover the corners, significantly improving the fit and anti-warping ability of the end-face covering, and ensuring the firmness during long-term use.

[0046] The edges of both the side cover unit 111 and the end cover unit 121 are surrounded by a second pre-cut crease 3. In this embodiment, the second pre-cut crease 3 is an intermittent cutting line, consisting of alternating micro-cuts 31 with a length of 0.2mm-0.5mm and uncut sections 32, with the total length of the cutting line accounting for 70%-85% of the pre-cut crease length. This intermittent second pre-cut crease 3 ensures the integrity of the release paper while the micro-cuts 31 precisely guide the tearing path, significantly reducing the tearing force required. The uncut sections 32 maintain the connection strength between the cover units, preventing accidental separation during transportation. Together, these two features allow the operator to easily and accurately tear off a single side or end cover unit 121 along the preset boundary using only their sense of touch, achieving rapid separation without tools and greatly improving film application efficiency and ease of operation.

[0047] In this embodiment, the micro-incision 31 has a V-shaped groove structure, with the opening of the V-shaped groove structure facing the outer side of the membrane, and the bottom angle of the groove is 30°-45°. The V-shaped groove micro-incision 31 forms a tip stress concentration effect in the initial stage of tearing, reducing the tearing force; at the same time, the V-shaped structure precisely guides the tearing force to extend to the outer side of the membrane along a predetermined path, ensuring a smooth tearing process and neat boundaries.

[0048] The depth of each pre-cut is 30% to 50% of the total thickness of the substrate layer Z1 and the anti-scratch layer Z2, and does not penetrate to the pressure-sensitive adhesive layer Z3; the release paper layer Z4 remains intact without cuts in the area corresponding to the pre-cut.

[0049] The above-described solution of this utility model includes the following process in specific applications:

[0050] (1) Diaphragm segmentation stage: The operator applies a small tension along the first wavy pre-cut 2 in the width direction of the roll J1, and uses the stress concentration effect of the crests and troughs to easily tear off the individual diaphragm body 1.

[0051] (2) Covering unit separation stage: This embodiment mainly addresses the requirement to cover all six sides of the box: by peeling off the connecting strip 4, the side covering unit 111 and the end covering unit 121 are physically separated;

[0052] Side Covering Unit 111: Tear off along the edge of the first region 11 with intermittent second pre-cut marks 3, and guide the tearing path with the bottom corner of the V-groove to ensure a neat boundary;

[0053] End face covering unit 121: Tear off the two independent diaphragm units 122 of the second region 12 along the intermittent second pre-cut 3 at the edge of the first region 11 to achieve step-by-step operation.

[0054] (3) Positioning and pasting stage:

[0055] The main positioning point 1121 is used to accurately align the corner of the box, and the auxiliary positioning point 1122 extends along the edge line to achieve rapid spatial alignment; first, the side covering unit 111 is attached, and then the end face unit is attached. Its circumferential extension wing 1221 is bent along the crease mark 1222 to increase the edge bonding area and eliminate the risk of edge warping.

[0056] This embodiment, through its partitioned design and pre-segmented structure, avoids material loss caused by cutting errors or misaligned splicing, thereby improving operational efficiency. Furthermore, the release paper layer Z4 remains intact and uncut in the pre-cut area, ensuring that the roll J1 maintains its overall strength during transport, thus avoiding the risk of breakage caused by through-line breaks.

[0057] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A scratch-resistant film with a pre-segmented structure, comprising a substrate layer, a scratch-resistant layer, a pressure-sensitive adhesive layer, and a release paper layer, characterized in that: Multiple membrane bodies are arranged along the length of the roll material, and a first pre-cut groove extending along the width of the roll material is provided between two adjacent membrane bodies; each membrane body includes a first region and a second region arranged side by side. The first region is provided with a side covering unit, the width of which matches the total unfolded width of the four consecutive sides of the box, and the surface of the side covering unit is provided with an array of positioning points for auxiliary positioning; the second region is provided with an end face covering unit, the end face covering unit includes two independent diaphragm units side by side, and the width of each diaphragm unit matches the width of the top or bottom surface of the box; the edges of the side covering unit and the end face covering unit are surrounded by a second pre-cut. The depth of each pre-cut is 30% to 50% of the total thickness of the substrate layer and the anti-scratch layer, and does not penetrate into the pressure-sensitive adhesive layer; the release paper layer remains intact without cuts in the area corresponding to the pre-cut.

2. The anti-scratch film with a pre-segmented structure according to claim 1, characterized in that, The first pre-cut has a wavy shape in the width direction of the roll material, with an amplitude of 1 mm to 3 mm.

3. The anti-scratch film with a pre-segmented structure according to claim 1, characterized in that, The second pre-cut mark is an intermittent cutting line, consisting of alternating micro-cuts of 0.2mm-0.5mm in length and uncut segments, with the total length of the cutting line accounting for 70%-85% of the pre-cut mark length.

4. The anti-scratch film with a pre-segmented structure according to claim 3, characterized in that, The micro-incision has a V-shaped groove structure, with the opening of the V-shaped groove structure facing the outside of the membrane and the bottom angle of the groove being 30°-45°.

5. The anti-scratch film with a pre-segmented structure according to claim 1, characterized in that, The positioning point array includes main positioning points and auxiliary positioning points; the diameter of the main positioning points is 0.8mm to 1mm, the diameter of the auxiliary positioning points is 0.3mm to 0.5mm, and the spacing ratio between the two is 1:0.3 to 0.6; the main positioning points are located at the corner projection positions of the box body, and the auxiliary positioning points are distributed along the edge lines of the box body.

6. The anti-scratch film with a pre-segmented structure according to claim 1, characterized in that, A peelable connecting strip is provided at the junction of the first region and the second region. The thickness of the pressure-sensitive adhesive layer between the connecting strip and the release paper layer is less than the thickness of the pressure-sensitive adhesive layer in other regions.

7. The anti-scratch film with a pre-segmented structure according to claim 6, characterized in that, The pre-cut depth of the peelable connecting strip is 70% to 80% of the total thickness of the substrate layer and the anti-scratch layer, and fluorescent marking strips are provided on both sides.

8. The anti-scratch film with a pre-segmented structure according to claim 1, characterized in that, The second region's independent diaphragm unit is provided with an extension wing along its circumferential edge. The extension wing extends outward from the diaphragm unit for a length of 5mm-8mm, and a crease mark is provided between the extension wing and the diaphragm unit.

9. The anti-scratch film with a pre-segmented structure according to claim 1, characterized in that, The surface of the scratch-resistant layer is provided with a nano anti-fouling coating, and the substrate layer is a BOPP multilayer co-extruded structure, which includes a wear-resistant layer, a core layer, and a barrier layer in sequence.

10. A scratch-resistant film roll, characterized in that, The invention comprises a scratch-resistant film having a pre-segmented structure as described in any one of claims 1-9.

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