Radiation-proof knitted fabric

Abstract

The present invention relates to a radiation-proof knitted fabric, the fabric is woven from metal fibers; the metal fibers include first metal fibers and second metal fibers; the first metal fibers are arranged side by side transversely, each first metal fiber is wound into a continuous wavy coil, including a crest section, a trough section and a connecting section, and the two ends of the connecting section are respectively connected to the crest section and the trough section; adjacent first metal fibers are sleeved in sequence, and the sleeve direction of the crest section is opposite to the sleeve direction of the trough section; the second metal fibers are arranged side by side transversely, and each second metal fiber is straight; the second metal fibers pass through the connecting section of the first metal fiber and abut against the connecting section. The present invention can achieve a better shielding effect through the structural design, material selection and content ratio of the metal fibers.

Description

Technical Field

[0001] The invention relates to the technical field of radiation-proof fabrics, in particular to a radiation-proof knitted fabric. Background Art

[0002] At present, there are more and more electronic products in our lives, and electromagnetic pollution is becoming more and more serious. The protective function of anti-radiation fabrics is becoming more and more important, and people have higher and higher requirements for anti-radiation fabrics. Comfortable and diversified anti-radiation fabrics are receiving more and more attention and expectations.

[0003] This application is mainly aimed at radiation protection research in the field of knitted fabrics. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a radiation-proof knitted fabric that can improve the shielding effect of electromagnetic waves.

[0005] To achieve the above object, the present invention provides the following technical solution: a radiation-proof knitted fabric, the fabric is woven from metal fibers; the metal fibers include first metal fibers and second metal fibers;

[0006] The first metal fibers are arranged side by side in a transverse direction, and each first metal fiber is wound into a continuous wave-shaped coil, including a crest section, a trough section and a connecting section, and two ends of the connecting section are respectively connected to the crest section and the trough section;

[0007] Adjacent first metal fibers are sheathed in sequence, and the sheathing direction of the wave crest section is opposite to the sheathing direction of the wave trough section;

[0008] The second metal fibers are arranged side by side in a transverse direction, and each second metal fiber is in a straight line; the second metal fibers pass through the connecting section of the first metal fibers and abut against the connecting section.

[0009] Knitted fabrics are generally formed by coils being interlaced due to their unique structure. If the yarns constituting the coils are metal fibers, the fabrics have conductivity, and thus the fabrics have a certain electromagnetic shielding capability. In the present invention, the first metal fibers are interlaced to form countless metal meshes, thereby achieving the function of shielding electromagnetic waves.

[0010] The second metal fiber further splits the metal mesh, so that there are more meshes per unit area and the shielding effect is better.

[0011] At the same time, the first metal fibers are nested with each other, and the second metal fibers pass through the first metal fibers, so that the fabric has good integrity and a certain degree of elasticity.

[0012] Preferably, the second metal fiber abuts against the front side and the rear side of the coil of the first metal fiber alternately in sequence.

[0013] That is, when the second metal fiber passes through the first metal fiber, it first passes through the front side of the first coil, then passes through the back side of the second coil, and then passes through the front side of the third coil... alternating in sequence. This ensures that the second metal fiber and the first metal fiber are staggered and tightened, maintain full contact, and are not easy to be separated, thereby ensuring the efficiency of shielding electromagnetic waves.

[0014] As the number of metal fiber interlacing points per unit area of ​​the fabric increases, the fabric will become tighter, and more metal mesh holes will be formed per unit area, which will increase the reflection, absorption, and attenuation of electromagnetic waves, and enhance the shielding effect of the fabric.

[0015] Preferably, the fabric further includes a third metal fiber, and the third metal fiber vertically passes through the second metal fiber and the first metal fiber and abuts against the two.

[0016] The third metal fiber is sandwiched between the first metal fiber and the second metal fiber.

[0017] Third, metal fibers can further increase the overall performance of the fabric. The more metal fiber interlacing points there are, the more metal meshes are formed per unit area, thereby increasing the shielding effect of the fabric.

[0018] Preferably, the metal fiber is composed of metal wire and yarn, and the metal wire is spirally wound outside the yarn. The metal wire is exposed outside the yarn, so that the metal wires can contact each other in the interweaving of the yarn, thereby increasing the contact area of ​​the metal fiber interweaving points, enhancing the conductive performance, and thus enhancing the shielding performance.

[0019] Preferably, the metal wire is a whole metal filament. The metal filament forms a continuous conductor on the yarn, has good conductivity and is not easy to change, and has relatively stable shielding performance.

[0020] Preferably, the metal wire is made of one or more of nickel, copper, silver, aluminum and stainless steel.

[0021] Preferably, the content of the metal wire in the metal fiber is 1-5%. The more metal wire content in the fabric, the better. As the metal wire content increases, the shielding effect will reach saturation or even decrease, and it will affect the softness of the fabric. Therefore, after testing, the metal wire content of 1-5% is the best configuration.

[0022] In summary, the present invention has the following beneficial effects: better shielding effect can be achieved through structural design, material selection and content ratio of metal fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the first metal fiber of the present invention.

[0024] Figure 2 yes Figure 1 Add a schematic diagram of the structure of the second metal fiber.

[0025] Figure 3 yes Figure 2 Add a schematic diagram of the structure of the third metal fiber.

[0026] Figure 4 It is a schematic diagram of the structure of a single metal fiber in the present invention.

[0027] Figure numerals: 1, first metal fiber; 11, peak section; 12, trough section; 13, connecting section; 14, mesh; 2, second metal fiber; 3, third metal fiber; 4, metal wire; 5, yarn. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] Embodiment 1:

[0030] See also Figure 1 This embodiment discloses a radiation-proof knitted fabric, which is woven from metal fibers; the metal fibers include first metal fibers 1. The first metal fibers 1 are arranged side by side in a transverse direction, and each first metal fiber 1 is wound into a continuous wavy coil. Figure 1 In the figure, adjacent first metal fibers 1 are marked as solid lines and hollow lines for easy identification. The first metal fiber 1 comprises a peak section 11, a trough section 12 and a connecting section 13, and the two ends of the connecting section 13 are connected to the peak section 11 and the trough section 12 respectively.

[0031] Adjacent first metal fibers 1 are sheathed in sequence, and the sheathing direction of the wave crest section 11 is opposite to the sheathing direction of the wave trough section 12; Figure 1 In the figure, the crest section 11 is sheathed from bottom to top, that is, the crest section 11 of the next first metal fiber 1 is sheathed on the crest section 11 of the previous first metal fiber 1. The trough section 12 is sheathed from top to bottom, that is, the trough section 12 of the previous first metal fiber 1 is sheathed on the trough section 12 of the next first metal fiber 1.

[0032] Knitted fabrics are generally formed by coils being interlaced due to their unique structure. If the yarns 5 constituting the coils are metal fibers, the fabrics have conductivity. In this embodiment, all the yarns 5 are metal fibers, so the fabrics have a certain electromagnetic shielding capability. In the present invention, the first metal fibers 1 are interlaced to form countless metal meshes 14, thereby achieving the function of shielding electromagnetic waves.

[0033] See also Figure 2In another embodiment, the metal fiber further includes a second metal fiber 2 .

[0034] The second metal fibers 2 are arranged side by side in a transverse direction, and each second metal fiber 2 is in a straight line. The second metal fibers 2 pass through the connecting section 13 of the first metal fiber 1 and abut against the connecting section 13 .

[0035] The second metal fibers 2 further split the metal mesh 14, so that there are more meshes 14 per unit area and the shielding effect is better.

[0036] At the same time, the first metal fibers 1 are nested with each other, and the second metal fibers 2 pass through the first metal fibers 1, so that the fabric has good integrity and a certain degree of elasticity.

[0037] The second metal fiber 2 abuts against the front side and the rear side of the coil of the first metal fiber 1 alternately in sequence.

[0038] That is, when the second metal fiber 2 passes through the first metal fiber 1, it first passes through the front side of the first coil, then passes through the back side of the second coil, then passes through the front side of the third coil, and so on, alternately. This ensures that the second metal fiber 2 and the first metal fiber 1 are staggered and tightened, maintain full contact, and are not easy to be separated, thereby ensuring the efficiency of shielding electromagnetic waves.

[0039] As the number of metal fiber interlacing points per unit area of ​​the fabric increases, the fabric becomes denser, more metal meshes 14 are formed per unit area, the reflection, absorption, attenuation of electromagnetic waves increases, and the shielding effect of the fabric is enhanced.

[0040] The larger the mesh 14 of the fabric, the smaller the tightness. The larger the mesh 14, the lower the protection against electromagnetic waves. The smaller the mesh 14, the tighter the fabric, the more interlacing points per unit area of ​​the fabric, the more closed loops are formed, the stronger the effective conductivity of the closed loop, and the better the shielding effectiveness.

[0041] See also Figure 3 In another embodiment, the fabric further includes a third metal fiber 3, and the third metal fiber 3 vertically passes through the second metal fiber 2 and the first metal fiber 1 and abuts against the two.

[0042] The third metal fiber 3 is sandwiched between the first metal fiber 1 and the second metal fiber 2, which is more compact and has a better contact effect with each other.

[0043] The third metal fiber 3 can further improve the overall performance of the fabric. The metal fiber interlacing points are more, and the metal meshes 14 formed per unit area are more, thereby increasing the shielding effect of the fabric.

[0044] In this embodiment, see Figure 4The metal fiber is composed of a metal wire 4 and a yarn 5, and the metal wire 4 is spirally wound outside the yarn 5. The metal wire 4 is exposed outside the yarn 5, so that the metal wires 4 can contact each other in the interweaving of the yarn 5, thereby increasing the contact area of ​​the metal fiber interweaving point, enhancing the conductive performance, and thus enhancing the shielding performance.

[0045] The metal wire 4 is a whole metal filament, which forms a continuous conductor on the yarn 5, has good conductivity and is not easy to change, and has relatively stable shielding performance.

[0046] The metal wire 4 is made of one or more of nickel, copper, silver, aluminum, and stainless steel.

[0047] The content of the metal wire 4 in the metal fiber is 1-5%. The more the content of the metal wire 4 in the fabric, the better. As the content of the metal wire 4 increases, the shielding effect will reach saturation or even decrease, and it will affect the softness of the fabric. Therefore, after testing, the content of the metal wire 4 is 1-5% for the best configuration. Experiments show that when the content of the metal wire 4 is 1%, the electromagnetic wave shielding rate is about 85%; when the content of the metal wire 4 is 2%, the electromagnetic wave shielding rate is about 92%; when the content of the metal wire 4 is 3%, the electromagnetic wave shielding rate is about 96%; when the content of the metal wire 4 is 4%, the electromagnetic wave shielding rate is about 98%; when the content of the metal wire 4 is 5%, the electromagnetic wave shielding rate is about 99%; if the content of the metal wire 4 increases further, the shielding rate will not change much.

[0048] Therefore, the shielding effect of the fabric is related to the content of metal fiber per unit area. The higher the absolute content of metal fiber per unit area, the better the conductivity and the better the shielding performance of the fabric; however, when the content of metal wire 4 in yarn 5 reaches a certain level, the shielding effect is not significantly increased, and the spinnability, weavability and wearability of metal fiber are worse, so the content of metal wire 4 in yarn 5 cannot be increased indefinitely.

[0049] The embodiments of the specific implementation methods are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A radiation-proof knitted fabric, characterized in that: The fabric is woven from metal fibers; the metal fibers include first metal fibers and second metal fibers; The first metal fibers are arranged side by side in a transverse direction, and each first metal fiber is wound into a continuous wave-shaped coil, including a crest section, a trough section and a connecting section, and two ends of the connecting section are respectively connected to the crest section and the trough section; Adjacent first metal fibers are sheathed in sequence, and the sheathing direction of the wave crest section is opposite to the sheathing direction of the wave trough section; The second metal fibers are arranged side by side in a transverse direction, and each second metal fiber is in a straight line; the second metal fibers pass through the connecting section of the first metal fibers and abut against the connecting section; The second metal fiber is alternately abutted against the front side and the rear side of the coil of the first metal fiber in sequence; The metal fiber is composed of metal wire and yarn, the metal wire is spirally wound outside the yarn; the content of the metal wire in the metal fiber is 1-5%; The fabric also includes a third metal fiber, which vertically passes through the second metal fiber and the first metal fiber and abuts against the two; the third metal fiber is clamped between the first metal fiber and the second metal fiber.

2. The radiation-proof knitted fabric according to claim 1, characterized in that: The metal wire is a whole metal filament.

3. The radiation-proof knitted fabric according to claim 1, characterized in that: The metal wire is made of one or more of nickel, copper, silver, aluminum and stainless steel.

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