Multi-layer press-fit structure for winding and packaging steel coil with extensibility

Abstract

The utility model discloses a multi-layer pressing structure with extensibility for winding and packaging a steel coil, and belongs to the technical field of steel coil packaging materials. The anti-rust adhesive film comprises an adhesive film layer, a reinforcing film layer is arranged on the outer side of the adhesive film layer, a gridding cloth layer is arranged on the outer side of the reinforcing film layer, a film spraying layer is arranged on the outer side of the gridding cloth layer, and an adhesive anti-rust film layer is arranged on the outer side of the film spraying layer. The reinforced film layer and the gridding cloth layer are mutually bonded through the lamination layer, and the gridding cloth layer is arranged between the reinforced film layer and the lamination layer; the adhesive film layer and the adhesive rust-proof film layer are adhered to each other along the edges of the two sides and then are integrally pressed together. The reinforcing film layer can effectively enhance the strength of the gridding cloth holes, the gridding cloth layer is stretched when being stressed, and the gridding deforms along the stress direction, so that the stretching performance and the tear resistance of the whole packaging material are enhanced, and the packaging material is good in anti-tear and anti-puncture effect, high in stretching rate, long in service life and durable.

Description

Technical Field

[0001] The utility model relates to the technical field of steel coil packaging materials, and more specifically, to a multi-layer pressing structure for winding and packaging steel coils with extensibility. Background Art

[0002] Chinese Patent CN202122356924.3, a sticky multi-layer pressing structure for winding and packaging steel coils, discloses a utility model including a first anti-rust winding film, a woven fabric layer, a plastic film layer, and a second anti-rust winding film. The other side of the first anti-rust winding film is provided with the second anti-rust winding film, and the first anti-rust winding film and the second anti-rust winding film are adhesively bonded to each other. A woven fabric layer and a plastic film layer are arranged between the first anti-rust winding film and the second anti-rust winding film, and the woven fabric layer and the plastic film layer are adhered to each other through compounding. After multiple uses, it is found that in this multi-layer pressing structure, the extensibility of the woven fabric layer is poor, the stretchability is small, and the overall material is lightweight, resulting in low overall strength and easy breakage, having certain disadvantages in use. Summary of the Utility Model

[0003] 1. Technical Problem to be Solved by the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a multi-layer pressing structure for winding and packaging steel coils with extensibility. The reinforcing film layer of the utility model can effectively enhance the strength at the holes of the reinforcing mesh cloth. When the mesh cloth layer is stressed, it is stretched and deformed, thereby enhancing the extensibility of the overall packaging material. As a packaging material, it has strong anti-tearing and anti-puncturing effects, high use strength, good stretching effect, and improves the tightness and sealing performance of winding packaging.

[0005] 2. Technical Solution

[0006] To achieve the above object, the technical solution provided by the utility model is as follows:

[0007] A multi-layer pressing structure for winding and packaging steel coils with extensibility of the utility model includes a sticky film layer. An enhancing film layer is arranged outside the sticky film layer, a mesh cloth layer is arranged outside the enhancing film layer, the mesh cloth layer is arranged between the enhancing film layer and the film laminating layer, and the mesh cloth layer and the enhancing film layer are bonded together through the film laminating layer. A sticky anti-rust film layer is arranged outside the film laminating layer;

[0008] The sticky film layer and the sticky anti-rust film layer are adhesively bonded to each other along the two side edges and then integrally pressed together.

[0009] Further, the thickness of the sticky film layer is 20 - 40 microns, and the width is 200 - 500 mm.

[0010] Furthermore, the material of the reinforcing film layer is: nylon film, BOPP film, PET film, with a thickness of 15 - 30 microns, a width of 150 - 380 mm, and printing can be performed on its surface.

[0011] Furthermore, the grammage of the mesh cloth layer is 10 - 20 g / m 2 , the meshes are cube-shaped, cuboid-shaped or rhombus-shaped, the mesh size of the mesh cloth layer is 10*10 - 30*30 mm, and the width of the mesh layer is 150 - 380 mm.

[0012] Furthermore, the material of the laminating film layer is: polyolefin, with a thickness of 15 - 30 microns and a width of 150 - 380 mm.

[0013] Furthermore, the thickness of the sticky rust-proof film layer is 20 - 50 microns and the width is 200 - 500 mm.

[0014] 3. Beneficial effects

[0015] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0016] The reinforcing film layer of the present utility model can effectively enhance the strength at the mesh holes. When the mesh cloth layer is stressed and stretched, the extensibility of the overall packaging material is enhanced. As a packaging material, it has strong anti-tearing and anti-puncturing effects, high use strength, good stretching effect, long service life, and is durable. Brief description of the drawings

[0017] Figure 1 is the exploded structure diagram of the present utility model;

[0018] Figure 2 is the overall structure diagram of the present utility model.

[0019] In the figure: 1, sticky film layer; 2, reinforcing film layer; 3, mesh cloth layer; 4, laminating film layer; 5, sticky rust-proof film layer. Specific embodiments

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0021] Embodiment 1

[0022] As Figure 1-2 can be seen, a multi-layer laminated structure for winding and packaging steel coils with extensibility in this embodiment includes a sticky film layer 1. An reinforcing film layer 2 is arranged outside the sticky film layer 1. A mesh cloth layer 3 is arranged outside the reinforcing film layer 2. The mesh cloth layer 3 is arranged between the reinforcing film layer 2 and the laminating film layer 4. The mesh cloth layer 3 and the reinforcing film layer 2 are bonded together through the laminating film layer 4. A sticky rust-proof film layer 5 is arranged outside the laminating film layer 4;

[0023] The adhesive film layer 1 and the adhesive rust-proof film layer 5 are adhesively bonded to each other along the two side edges and then integrally pressed together.

[0024] The thickness of the adhesive film layer 1 is 20 - 40 microns, and the width is 200 - 500 mm.

[0025] The material of the reinforcing film layer 2 is: nylon film, BOPP film, PET film. The thickness is 15 - 30 microns, and the width is 150 - 380 mm. Printing can be carried out on its surface.

[0026] The grammage of the mesh cloth layer 3 is 10 - 20 g / m 2 , the mesh is a cube, a cuboid or a rhombus. The mesh size of the mesh cloth layer 3 is 10*10 - 30*30 mm, and the width of the mesh layer is 150 - 380 mm.

[0027] The material of the coating film layer 4 is: polyolefin. The thickness is 15 - 30 microns, and the width is 150 - 380 mm.

[0028] The thickness of the adhesive rust-proof film layer 5 is 20 - 50 microns, and the width is 200 - 500 mm.

[0029] Both the adhesive film layer 1 and the adhesive rust-proof film layer 5 are made of high-elasticity and high-viscosity winding films.

[0030] The adhesive film layer 1 and the adhesive rust-proof film layer 5 are slightly wider than the mesh cloth layer 3 at their two side edge positions, which play the functions of waterproofing and sealing the lap joint when winding and packaging the steel coil.

[0031] The reinforcing film layer 2, as a reinforcing layer, plays the functions of increasing the strength at the mesh holes and anti-puncturing. It can also be used as a printing base for printing product models, appearance logos, trademarks, etc.

[0032] The mesh cloth layer 3, as a reinforcing layer, plays the functions of increasing strength and anti-tearing. At the same time, it plays the function of increasing extensibility through the stress deformation of the mesh.

[0033] The coating film layer 4, as an adhesive layer, bonds the reinforcing film layer 2 and the mesh cloth layer 3 together.

[0034] Compared with the prior art, the reinforcing film layer 2 in this application can effectively enhance and make up for the strength at the mesh holes. When the mesh cloth layer 3 is stressed, it is stretched, thereby enhancing the extensibility of the overall packaging material. As a packaging material, it has strong anti-tearing and anti-puncturing effects, high use strength, good stretching effect, long service life, and is durable.

[0035] The above has schematically described the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by this and, without departing from the gist of the creation of the present utility model, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A multi-layer laminated structure for winding and packaging steel coils with extensibility, comprising an adhesive film layer (1), characterized in that: An enhanced film layer (2) is provided on the outer side of the adhesive film layer (1), a mesh fabric layer (3) is provided on the outer side of the enhanced film layer (2), the mesh fabric layer (3) is arranged between the enhanced film layer (2) and the film laminating layer (4), the mesh fabric layer (3) and the enhanced film layer (2) are bonded together through the film laminating layer (4), and a sticky rust-proof film layer (5) is provided on the outer side of the film laminating layer (4); The adhesive film layer (1) and the sticky rust-proof film layer (5) are bonded to each other along the two side edges and then integrally pressed together; The width of the adhesive film layer (1) is 200 mm; The width of the enhanced film layer (2) is 150 mm; The width of the mesh fabric layer (3) is 150 mm; The width of the film laminating layer (4) is 150 mm; The width of the sticky rust-proof film layer (5) is 200 mm.

2. The multi-layer pressing structure for winding and packaging of a stretchable steel coil according to claim 1, wherein: The thickness of the adhesive film layer (1) is 20 - 40 microns.

3. The multi-layer lamination structure for winding and packaging of a stretchable steel coil according to claim 1, wherein: The thickness of the enhanced film layer (2) is 15 - 30 microns, and printing can be performed on its surface.

4. A multi-layer pressing structure for wrapping a stretchable steel coil, according to claim 1, wherein: The basis weight of the grid cloth layer (3) is 10-20 g / m 2 , the grid is a cube, a cuboid or a rhombus, and the mesh size of the grid cloth layer (3) is 10*10 - 30*30 mm.

5. A multi-layer lamination structure for wrapping a steel coil with stretchability according to claim 1, characterized in that: The material of the film laminating layer (4) is: polyolefin, and the thickness is 15 - 30 microns.

6. The multi-layer pressing structure for wrapping a steel coil with elasticity according to claim 1, wherein: The thickness of the sticky rust-proof film layer (5) is 20 - 50 microns.

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