Bidirectional easy-to-tear protective film for metal plate

Abstract

The utility model discloses a bi-directional easy-to-tear protective film for a metal plate, which comprises a protective film main body and release paper, the protective film main body comprises a base material layer and an adhesive layer, the adhesive layer is used for attaching the metal plate, a bi-directional easy-to-tear structure is arranged on the base material layer, and the release paper is arranged on the base material layer. The bidirectional easy-to-tear structure comprises four punching lines which are respectively arranged at four corners of the base material layer, the release paper covers the adhesive layer when the protective film main body is not used, and the release paper is removed from the adhesive layer when the protective film main body is used. According to the utility model, the bidirectional easy-to-tear structure is arranged on the protective film, so that a user can easily tear the protective film from two directions, the difficulty of tearing by hands is reduced, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the protection film technical field, concretely is used for the bidirectional easy tear protection film of metal plate. BACKGROUND

[0002] The surface of the metal plate is easily damaged by scratching, wearing, corrosion, oxidation and pollution during production, processing, transportation and storage, and needs to be protected by a protection film.

[0003] The existing protection film for metal plates usually only has a one-way easy tear structure or does not contain an easy tear structure. When it needs to be torn from the non-easy tear direction, a lot of force is often required, especially for large-area or highly adhesive protection films, which are difficult to tear by hand. When the protection film is attached to the metal plate for a long time or after a long period of storage and transportation, the difficulty of tearing the film will further increase due to the action of the adhesive, and the tearing direction is difficult to control, which may deviate. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the many inconveniences in the tearing operation of the existing protection film for metal plates, which does not have a bidirectional easy tear function, has a large difficulty in tearing the film, requires a lot of force, and the tearing direction is difficult to control, which may deviate, and proposes a bidirectional easy tear protection film for metal plates.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The bidirectional easy tear protection film for metal plates comprises:

[0007] The protection film body comprises a substrate layer and an adhesive layer, the adhesive layer is used to attach the metal plate, the substrate layer is provided with a bidirectional easy tear structure, and the bidirectional easy tear structure comprises four perforated lines respectively arranged at the four corners of the substrate layer.

[0008] The release paper covers the adhesive layer when the protection film body is not used, and is removed from the adhesive layer when the protection film body is used.

[0009] As a further description of the above technical scheme, the perforated line is L-shaped, and a plurality of circular holes are arranged along the two perpendicular directions of the substrate layer at equal intervals, and the diameter of the circular hole is 0.1-2mm.

[0010] As a further description of the above technical scheme, the substrate layer is printed with a tear line mark near the perforated line, and the tear line mark is L-shaped along the edges of the two perpendicular directions of the substrate layer.

[0011] As a further description of the above technical solution, the tear line mark is printed or pressed on the surface of the substrate layer, and the material structure of the substrate layer at the tear line mark is weakened.

[0012] As a further description of the above technical solution, the substrate layer is a polyethylene (PE) film or a polyester (PET) film with a thickness of 0.01-0.1 mm, and the adhesive layer is an acrylate pressure-sensitive adhesive with a thickness of 0.001-0.01 mm and a viscosity of 10-500 g / 25 mm.

[0013] As a further description of the above technical solution, the edge of the release paper is provided with two symmetrical tearable edges.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the bidirectional tearable structure is adopted, four punching lines are arranged at four corners of the substrate layer, clear tear guiding is provided, the user can easily tear the protective film from two directions according to actual requirements, the difficulty of hand tearing is reduced, the operation efficiency is improved, especially in the occasion requiring the protective film to be quickly removed, a large amount of time and manpower can be saved, meanwhile, when the protective film is torn, the bidirectional tearable structure can make the force uniformly distributed, local stress concentration caused by one-way tearing is avoided, thereby effectively reducing the damage such as pulling, scratching or deformation on the surface of the metal plate, better protecting the surface quality and precision of the metal plate, and the utility model is suitable for various metal plates with high surface quality requirements. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structural schematic view of the utility model;

[0017] Figure 2 It is a sectional view of the protective film body and the release paper of the utility model.

[0018] Reference signs: 10, protective film body; 101, substrate layer; 102, adhesive layer; 11, tear line mark; 12, punching line; 121, round hole; 13, release paper; 14, tearable edge. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the related drawings, and the drawings show several embodiments of the utility model, but the utility model can be realized in different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the utility model more thorough and comprehensive.

[0020] Please refer to the drawings Figures 1-2As shown, the utility model provides a technical scheme: two -way easily tearable protective film for metal sheet, including protective film main part 10 and release paper 13, protective film main part 10 includes base material layer 101 and adhesive layer 102, adhesive layer 102 is used to fit metal sheet, be equipped with two -way easily tearable structure on base material layer 101, two -way easily tearable structure includes four punch lines 12 respectively arranged at the four corners of base material layer 101, release paper 13 covers adhesive layer 102 when not using protective film main part 10, release paper 13 removes from adhesive layer 102 when using protective film main part 10, release paper 13 covers adhesive layer 102 when not using protective film main part 10, facilitate storage and transportation, the surface tension of release paper 13 is low, and the binding force with adhesive layer 102 is weak, and can easily peel off when using.

[0021] Specifically, when storing and transporting, the release paper 13 covers the adhesive layer 102, and the protective film main body 10 is packaged to ensure that the adhesive layer 102 is not contaminated and damaged by the outside world; when using, first remove the release paper 13 from the adhesive layer 102, because the surface tension of the release paper 13 is low, and the binding force with the adhesive layer 102 is weak, so it can be easily peeled off, and then the adhesive layer 102 of the protective film main body 10 is attached to the metal plate, so that the protective film protects the metal plate; when the protective film needs to be removed, it can be torn along the four punch lines 12 at the four corners of the base material layer 101 to realize the function of two-way easy tearing, and the two-way easy tearing structure formed by the four punch lines 12 on the base material layer 101 provides convenience for removing the protective film. Users can choose to tear the protective film in different directions according to actual needs, which reduces the difficulty of tearing the film, and can also evenly distribute the force to avoid damaging the surface of the metal plate, and can also ensure that the protective film is relatively complete from the metal plate. Separate, improve the operation efficiency and the surface quality of the metal plate.

[0022] In an embodiment of the utility model, as shown in Figure 1 and Figure 2 The punch line 12 is L-shaped, and a plurality of circular holes 121 are arranged along the two perpendicular directions of the base material layer 101 at equal intervals in the punch line 12. The diameter of the circular hole 121 is 0.1-2mm. The L-shaped punch line 12 is arranged corresponding to the two perpendicular directions of the base material layer 101. When the protective film needs to be torn, the operator can apply force along the two perpendicular directions according to actual needs. The punch line 12 can effectively guide the tearing direction to realize the effect of two-way easy tearing, and meet the requirements of tearing direction of the protective film in different scenes.

[0023] In an embodiment of the utility model, as shown in Figure 1 and Figure 2As shown, the substrate layer 101 is printed with a tear line mark 11 near the perforation line 12, and the tear line mark 11 is arranged in an L shape along the two mutually perpendicular edges of the substrate layer 101. The arranged tear line mark 11 can accurately guide the direction of tearing.

[0024] In an embodiment of the present application, as shown in Figure 1 and Figure 2 As shown, the tear line mark 11 is printed or pressed on the surface of the substrate layer 101, so that the user can intuitively see the tearing path, clearly know where to start and in which direction to tear the protective film, thereby more accurately and efficiently operating, avoiding direction errors or inconvenience caused by blind tearing, and the material structure of the substrate layer 101 at the tear line mark 11 is weakened. The weakening of the material structure makes the stress more easily concentrated at the mark, and when an external force is applied, the tearing is more easily started from the mark and expanded along the mark direction, thereby ensuring the smoothness and neatness of the tearing process.

[0025] The substrate layer 101 is a polyethylene (PE) film or a polyester (PET) film with a thickness of 0.01-0.1mm. Within this range, the substrate layer 101 can not only have sufficient strength to support the overall structure of the protective film, so that it is not easily damaged during transportation, storage and use, but also maintain good flexibility and easy tearing, facilitating the user to perform bidirectional tearing operation. The adhesive layer 102 is an acrylate pressure-sensitive adhesive with a thickness of 0.001-0.01mm. Such thickness can not only ensure that the adhesive has sufficient amount to achieve good bonding effect, so that the protective film is closely attached to the metal plate, but also will not cause the adhesive to overflow or affect the easy tearing performance of the protective film due to excessive thickness. The adhesion of the adhesive layer 102 is 10-500g / 25mm, which ensures that the adhesive layer 102 has appropriate adhesion with the metal plate.

[0026] In detail, the polyethylene (PE) film has good flexibility, water resistance and chemical corrosion resistance, and can adapt to the protection needs of metal plates in different environments. At the same time, it is soft in texture and will not scratch the surface of the metal plate, and is suitable for general indoor metal plate protection. The polyester (PET) film has high strength, transparency and heat resistance, and can provide reliable protection for metal plates in high temperature environments or in cases where high strength of the protective film is required. In addition, the high transparency facilitates the observation of the surface of the metal plate, and is suitable for outdoor or industrial environment metal plate protection.

[0027] The acrylate pressure-sensitive adhesive has excellent bonding performance and can be firmly attached to the surface of the metal plate to provide reliable protection. At the same time, it has good adaptability to different types of metal plates and can form stable adhesion on various metal surfaces.

[0028] In an embodiment of the present application, as shown inFigure 1 As shown, the edge of the release paper 13 is provided with two symmetrical tearable edges 14, so that the user can easily grasp and remove the release paper 13 from the protective film during use, improving the convenience of operation.

[0029] The utility model is described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as this non-essential improvement using the method concept and technical scheme of the utility model or directly applying the concept and technical scheme of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims

1. Bidirectional easy tear protective film for metal sheets, characterized in that, The application relates to a protective film body (10) comprising a substrate layer (101) and an adhesive layer (102) for adhering to a metal plate, wherein a bidirectional tearable structure is arranged on the substrate layer (101), and the bidirectional tearable structure comprises four perforation lines (12) arranged at four corners of the substrate layer (101) respectively. A release paper (13) is arranged on the adhesive layer (102) when the protective film body (10) is not used, and the release paper (13) is removed from the adhesive layer (102) when the protective film body (10) is used. The perforation line (12) is arranged in an L shape, and a plurality of circular holes (121) are arranged in the perforation line (12) at equal intervals along two perpendicular directions of the substrate layer (101), and the diameter of the circular hole (121) is 0.1-2 mm.

2. The bidirectional easy-tear protective film for a metal plate according to claim 1, characterized by, A tear line mark (11) is printed on the substrate layer (101) near the perforation line (12), and the tear line mark (11) is arranged in an L shape along the edges of the substrate layer (101) in two perpendicular directions.

3. The bidirectional easy tear protective film for a metal plate according to claim 1, characterized by, The tear line mark (11) is printed or pressed on the surface of the substrate layer (101), and the material structure of the substrate layer (101) at the tear line mark (11) is weakened.

4. The bidirectional easy-tear protective film for a metal plate according to claim 3, characterized by The substrate layer (101) is a polyethylene (PE) film or a polyester (PET) film with a thickness of 0.01-0.1 mm, the adhesive layer (102) is an acrylate pressure-sensitive adhesive with a thickness of 0.001-0.01 mm, and the adhesive force of the adhesive layer (102) is 10-500 g / 25 mm.

5. The bidirectional easy-tear protective film for a metal plate according to claim 1, characterized by Two symmetrical tearable edges (14) are arranged at the edges of the release paper (13).

6. The bidirectional easy-tear protective film for a metal plate according to claim 1, characterized by ​

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