Breathable electromagnetic shielding fabric

Abstract

The utility model discloses a breathable electromagnetic shielding fabric, and relates to the technical field of layered products. A breathable electromagnetic shielding fabric comprises an outer surface layer, a self-heating porous hot melting layer, a breathable layer, an inner layer, an electromagnetic shielding layer, a warm-keeping layer and a windproof layer, the self-heating porous hot melting layer is connected with the interior of the upper end of the outer surface layer in a bonding mode, and the upper surface of the breathable layer is connected with the lower surface of the self-heating porous hot melting layer in a bonding mode. The upper surface of the inner layer is connected with the lower surface of the breathable layer in a bonding mode, the upper surface of the electromagnetic shielding layer is provided with grooves through the metal wire meshes, wires are wound in the grooves to form crossed areas, the metal wire meshes are arranged in a crossed mode so that a denser shielding network can be formed, and the crossed areas can keep certain breathability of the fabric. Meanwhile, certain gaps are usually reserved in the crossed arrangement of the metal wire meshes, and the gaps allow air to circulate, so that the air permeability of the fabric is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of fabrics, in particular to a breathable electromagnetic shielding fabric. Background Art

[0002] Electromagnetic shielding clothing is widely used in aerospace, electrical power, military defense, medical, civilian, and specialized industrial fields, playing a vital role in protecting the human body from electromagnetic radiation. Its development has reached considerable scale, becoming a necessity in many fields, and its research has become a hot topic in functional clothing. Fabric is the primary factor determining the overall quality of electromagnetic shielding clothing, and therefore a key research focus in this field. Electromagnetic shielding clothing is often worn in cold and complex electromagnetic radiation environments, so excellent warmth retention and electromagnetic properties are essential fabric features in these scenarios.

[0003] Although existing breathable electromagnetic shielding fabrics have solved the breathability problem to a certain extent, it is often difficult to achieve an ideal balance between shielding effectiveness, comfort and durability. Some fabrics achieve shielding effects by adding conductive coatings or embedding metal fibers on the surface, but these methods may affect the softness and breathability of the fabric, causing discomfort to the wearer, especially when worn for a long time. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a breathable electromagnetic shielding fabric that can solve the problem that some fabrics achieve shielding effects by adding a conductive coating or embedding metal fibers on the surface, but these methods may affect the softness and breathability of the fabric, thereby causing discomfort to the wearer, especially when it needs to be worn for a long time.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a breathable electromagnetic shielding fabric, comprising an outer layer, a self-heating porous hot-melt layer, a breathable layer, an inner layer, an electromagnetic shielding layer, a thermal insulation layer, and a windproof layer; the self-heating porous hot-melt layer is bonded and connected internally at the upper end of the outer layer, the upper surface of the breathable layer is bonded and connected to the lower surface of the self-heating porous hot-melt layer, the upper surface of the inner layer is bonded and connected to the lower surface of the breathable layer, and the upper surface of the windproof layer is bonded and connected to the lower surface of the inner layer;

[0006] Among them, the upper surface of the thermal insulation layer is bonded to the lower surface of the windproof layer, the upper surface of the electromagnetic shielding layer is bonded to the upper surface of the thermal insulation layer, and a metal wire mesh is provided on the electromagnetic shielding layer. The metal wire mesh has grooves on the upper surface of the electromagnetic shielding layer and is wound inside to form a cross area. The metal wire mesh is arranged in a cross pattern to form a dense shielding network, and the cross area can maintain a certain air permeability of the fabric.

[0007] Preferably, a plurality of self-heating particles are provided on the upper surface of the self-heating porous hot-melt layer.

[0008] Preferably, the fibers inside the breathable layer are arranged in a cross shape to form a cross area.

[0009] Preferably, a plurality of prismatic strips are provided inside the inner layer;

[0010] Among them, a plurality of prismatic strips are in a diamond shape.

[0011] Preferably, the outer layer is made of polyester material, and the self-heating porous hot-melt layer is made of polyethylene material;

[0012] Among them, the breathable layer is made of polyester non-woven fabric material.

[0013] Preferably, the inner layer is made of bamboo fiber material, and the electromagnetic shielding layer is made of metal mesh material;

[0014] Wherein, the windproof layer is made of filled composite material.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This breathable electromagnetic shielding fabric has a cross-area formed by opening grooves on the upper surface of the electromagnetic shielding layer through a metal mesh and winding wires inside. The metal mesh is arranged in a cross pattern to form a denser shielding network. The cross-area can maintain a certain degree of breathability of the fabric because the mesh structure allows air circulation, reducing the stuffiness when worn and improving the reliability of the overall shielding performance. At the same time, the cross-arrangement of the metal mesh usually leaves a certain gap, which allows air circulation, thereby maintaining the breathability of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the exterior of the self-heating porous hot-melt layer of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the outer portion of the breathable layer of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the exterior of the electromagnetic shielding layer of the present invention.

[0022] Figure numerals: 1. outer layer; 2. self-heating porous hot-melt layer; 3. breathable layer; 4. inner layer; 5. electromagnetic shielding layer; 6. thermal insulation layer; 7. windproof layer; 8. prismatic strips; 9. cross area; 10. self-heating particles; 11. metal mesh; 12. cross area; 13. quasi-open resonant ring. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] See also Figure 1-4The utility model provides a technical solution: a breathable electromagnetic shielding fabric, comprising an outer layer 1, a self-heating porous hot-melt layer 2, a breathable layer 3, an inner layer 4, an electromagnetic shielding layer 5, a thermal insulation layer 6 and a windproof layer 7. The self-heating porous hot-melt layer 2 is bonded to the inner portion of the upper end of the outer layer 1, the upper surface of the breathable layer 3 is bonded to the lower surface of the self-heating porous hot-melt layer 2, the upper surface of the inner layer 4 is bonded to the lower surface of the breathable layer 3, the upper surface of the windproof layer 7 is bonded to the lower surface of the inner layer 4, the upper surface of the thermal insulation layer 6 is bonded to the lower surface of the windproof layer 7, and the electromagnetic The upper surface of the shielding layer 5 is bonded to the upper surface of the thermal insulation layer 6. A metal mesh 11 is provided on the electromagnetic shielding layer 5. The metal mesh 11 is grooved on the upper surface of the electromagnetic shielding layer 5 and wound inside to form a cross area 12. The metal mesh 11 is arranged in a cross pattern to form a denser shielding network. The cross area 12 can maintain a certain air permeability of the fabric because the mesh structure allows air circulation, reducing the stuffiness when worn. A quasi-open resonant ring 13 is provided on the electromagnetic shielding layer 5. The quasi-open resonant ring 13 is made of a metamaterial structure film to improve the shielding effectiveness of the fabric.

[0028] Among them, the upper surface of the self-heating porous hot melt layer 2 is provided with a plurality of self-heating particles 10. The self-heating porous hot melt layer 2 is a hot melt adhesive which is a laminating agent used to bond two layers of fabrics. In order to make the fabric have better functions, we have modified the hot melt adhesive by doping it with self-heating micro-medium and generating pores around it. The micro-medium added to the hot melt adhesive includes nanoparticles such as titanium carbide, coffee carbon, carbon black particles, ceramics and zirconium oxide. These nanoparticles form a self-heating mechanism inside the fabric, and cooperate with the thermal insulation layer to give the composite fabric an overall thermal insulation function. At the same time, the self-heating nanoparticles The micro-medium has undergone interface treatment so that when it is mixed with the hot melt adhesive, many micropores are formed around the interface, so that the hot melt adhesive layer also has air permeability and moisture permeability. In this way, the self-heating porous hot melt layer 2 is transformed from a simple adhesive into a layer that can not only bond the fabric but also has a heat preservation function, while also ensuring the overall comfort of the composite fabric. The fibers inside the breathable layer 3 are arranged in a cross shape to form a cross area 9, which improves the overall breathability. A plurality of prismatic strips 8 are provided inside the inner layer 4. The plurality of prismatic strips 8 are diamond-shaped and have high stability. At the same time, they increase the rigidity of the inner layer 4 to prevent it from deformation when subjected to external force.

[0029] Among them, the outer layer 1 is made of polyester material with good durability, wrinkle resistance and elasticity, the self-heating porous hot-melt layer 2 is made of polyethylene material with good chemical stability, waterproofness and corrosion resistance, the breathable layer 3 is made of polyester non-woven fabric material with good air permeability and certain filtering ability, the inner layer 4 is made of bamboo fiber material with natural antibacterial and moisture absorption and perspiration, the electromagnetic shielding layer 5 is made of metal mesh material with good conductivity and certain flexibility, the thermal insulation layer 6 is a fabric with excellent thermal insulation properties, produced by thermal insulation fiber or self-heating fiber, and the windproof layer 7 is made of filled composite material to optimize electromagnetic shielding and windproof performance.

[0030] A groove is opened on the upper surface of the electromagnetic shielding layer 5 by means of a metal wire mesh 11 and a wire is wound inside to form a cross area 12. The metal wire mesh 11 is arranged in a cross pattern to form a denser shielding network. The cross area 12 can maintain a certain air permeability of the fabric because the mesh structure allows air circulation, reducing the stuffiness when worn and improving the reliability of the overall shielding performance. At the same time, the cross arrangement of the metal wire mesh 11 usually leaves a certain gap, which allows air circulation, thereby maintaining the air permeability of the fabric. A plurality of prismatic strips 8 are arranged inside the inner layer 4. The plurality of prismatic strips 8 are diamond-shaped and have high stability. At the same time, they increase the rigidity of the inner layer 4 to prevent it from deforming when subjected to external force. At the same time, the gaps formed by the prismatic strips 8 can serve as air circulation channels to facilitate ventilation.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A breathable electromagnetic shielding fabric, comprising an outer layer (1), a self-heating porous hot-melt layer (2), a breathable layer (3), an inner layer (4), an electromagnetic shielding layer (5), a thermal insulation layer (6) and a windproof layer (7), characterized in that: The self-heating multi-porous hot-melt layer (2) is bonded and connected to the interior of the upper end of the outer layer (1); the upper surface of the breathable layer (3) is bonded and connected to the lower surface of the self-heating multi-porous hot-melt layer (2); the upper surface of the inner layer (4) is bonded and connected to the lower surface of the breathable layer (3); and the upper surface of the windproof layer (7) is bonded and connected to the lower surface of the inner layer (4); The upper surface of the thermal insulation layer (6) is bonded to the lower surface of the windproof layer (7), and the upper surface of the electromagnetic shielding layer (5) is bonded to the upper surface of the thermal insulation layer (6). A metal mesh (11) is provided on the electromagnetic shielding layer (5). The metal mesh (11) is provided with grooves on the upper surface of the electromagnetic shielding layer (5) and is wound inside to form a cross region (12). The metal mesh (11) is arranged in a cross pattern to form a dense shielding network. The cross region (12) can maintain a certain degree of air permeability of the fabric.

2. The breathable electromagnetic shielding fabric according to claim 1, characterized in that: A plurality of self-heating particles (10) are provided on the upper surface of the self-heating porous hot-melt layer (2).

3. The breathable electromagnetic shielding fabric according to claim 1, characterized in that: The fibers inside the breathable layer (3) are arranged in a cross shape to form a cross area (9).

4. The breathable electromagnetic shielding fabric according to claim 1, characterized in that: A plurality of prismatic strips (8) are provided inside the inner layer (4); Wherein, the plurality of prismatic strips (8) are in a rhombus shape.

5. The breathable electromagnetic shielding fabric according to claim 1, characterized in that: The outer surface layer (1) is made of polyester material, and the self-heating porous hot-melt layer (2) is made of polyethylene material; Wherein, the breathable layer (3) is made of polyester non-woven fabric material.

6. The breathable electromagnetic shielding fabric according to claim 1, characterized in that: The inner layer (4) is made of bamboo fiber material, and the electromagnetic shielding layer (5) is made of metal mesh material; Wherein, the windproof layer (7) is made of a filled composite material.

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