A highly flexible wire

Abstract

This utility model provides a highly flexible wire, comprising: a cable core, with a sheath on the outside of the cable core; the cable core includes: multiple core wires, each core wire including: a conductor and a fluoroplastic insulation layer disposed on the outside of the conductor; the conductor includes: tinned copper wire, multiple tinned copper wires and / or the bulletproof reinforcing filler wire are twisted together to form the conductor; the sheath includes: a polyester fiber braided mesh disposed on the outermost layer. This invention overcomes the technical bottlenecks of flexible cables in terms of mechanical strength, temperature resistance, and dynamic durability, enabling use in environments with frequent movement, and solving the requirement for high temperature resistance. It ensures the cable's abrasion resistance while enhancing overall flexibility and extending the wire's service life.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a highly flexible wire. Background Technology

[0002] With technological advancements and rising living standards, the demands on electrical wire performance are becoming increasingly stringent. Wires must withstand high temperatures and frequent movement for extended periods. Traditional flexible electrical wires face the following technical bottlenecks:

[0003] 1. Mechanical performance defects: Ordinary conductors are prone to metal fatigue fracture after repeated bending, and conventional filler materials cannot achieve both flexibility and tensile strength;

[0004] 2. Insufficient temperature resistance: PVC or ordinary PE insulation layers are prone to aging and cracking in environments above 80℃, leading to insulation failure;

[0005] 3. Risk of sheath wear: In mobile scenarios, the outer material is easily damaged by friction with the equipment, which may cause short circuit accidents.

[0006] The existing improvement plan has obvious limitations:

[0007] Existing technology uses early warning copper wire to monitor for damage, but it does not solve the problem of conductor fatigue resistance itself;

[0008] Existing technologies use foamed fillers to enhance flexibility, but at the expense of mechanical strength;

[0009] Existing technologies improve temperature resistance through silicone rubber insulation layers, but this leads to increased wire diameter, affecting wiring flexibility.

[0010] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0011] To address the technical challenges of mechanical performance defects, insufficient temperature resistance, and sheath wear risks in high-temperature and frequently moving working conditions, this invention proposes a highly flexible wire. This wire overcomes the technical bottlenecks in mechanical strength, temperature resistance, and dynamic durability of flexible cables, enabling its use in environments with frequent movement. It also meets the high-temperature resistance requirement, ensuring the cable's abrasion resistance while enhancing overall flexibility and extending the wire's service life.

[0012] To achieve the above objectives, the technical solution of this utility model is as follows:

[0013] On one hand, this utility model provides a highly flexible wire, including: a cable core, the cable core having a sheath on its outer side, the cable core including: multiple core wires, the core wires including: conductors and a fluoroplastic insulation layer disposed on the outer side of the conductors, the conductors including: tinned copper wires, multiple tinned copper wires and / or the bulletproof reinforcing filler wires being twisted together to form the conductors, and the sheath including: a polyester fiber woven mesh disposed on the outermost layer.

[0014] This utility model provides a highly flexible wire that breaks through the technical bottlenecks of flexible cables in terms of mechanical strength, temperature resistance, and dynamic durability. It can be used in environments with frequent movement and solves the need for high temperature resistance. It ensures the wear resistance of the cable while enhancing its overall flexibility and extending the service life of the wire.

[0015] As a preferred technical solution, the tin-plated copper wire includes: a copper wire with a tin-plated layer on the outside of the copper wire, and the diameter of the tin-plated copper wire is 0.04 to 0.08 mm.

[0016] As a preferred technical solution, the core wire includes:

[0017] At least one primary wire with a specification of 28-32AWG;

[0018] Multiple second core wires with a specification of 23-27AWG.

[0019] As a preferred technical solution, the cable core includes: at least one bulletproof wire reinforcing filler and a first drainage line, wherein the first core wire and the second core wire are disposed outside the bulletproof wire reinforcing filler, and the first drainage line is also disposed outside the bulletproof wire reinforcing filler, wherein the first drainage line is disposed between the second core wire.

[0020] As a preferred technical solution, the sheath includes: a wrapping layer, which is disposed outside the first core wire, the second core wire and the first drain wire.

[0021] As a preferred technical solution, the cable core includes: a second drain line, which is disposed in the gap between the wrapping layer and the first core wire, the second core wire and the first drain line, and the cross-sectional area of ​​the second drain line is smaller than the cross-sectional area of ​​the first drain line.

[0022] As a preferred technical solution, the protective layer includes a silicone sleeve, which is disposed on the outside of the wrapping layer.

[0023] As a preferred technical solution, the polyester fiber woven mesh includes: a polyester filament woven mesh, which is arranged on the outside of the silicone sheath by cross-weaving polyester filaments.

[0024] On the other hand, this utility model also provides a method for manufacturing a highly flexible wire, which includes the following manufacturing steps:

[0025] The cable core manufacturing process includes the following steps:

[0026] S1 is formed by twisting together multiple tin-plated copper wires and / or bulletproof wires and reinforcing filler wires to form a conductor;

[0027] S2 forms the core wire by extruding a fluoroplastic insulation layer onto the surface of the conductor.

[0028] S3 twists multiple core wires and drain wires into a cable core;

[0029] The protective coating manufacturing process includes the following steps:

[0030] S4 applies a wrapping layer to the outside of the cable core;

[0031] S5 has a silicone sheath pressed and wrapped around the outer layer of the strap;

[0032] S6 is woven over a silicone sheath to form a polyester fiber filament mesh, resulting in a highly flexible wire.

[0033] As a preferred technical solution, the wrapping layer in step S4 includes: wrapping tape, which includes: aluminum foil or Mylar, and the wrapping tape is formed on the outside of the cable core by wrapping or dragging.

[0034] The present invention provides a highly flexible wire and its manufacturing method, which have the following beneficial effects:

[0035] 1) The present invention provides a highly flexible wire and its manufacturing method, which breaks through the technical bottlenecks of flexible cables in terms of mechanical strength, temperature resistance and dynamic durability. It can be used in environments with frequent movement and solves the need for high temperature resistance. It ensures the wear resistance of the cable while enhancing the overall flexibility and extending the service life of the wire.

[0036] This utility model provides a highly flexible wire and its manufacturing method, which uses multiple strands of ultra-fine tin-plated copper wires combined with bulletproof wire and reinforcing filler wire to make the conductor have both high conductivity and tensile strength, thereby improving mechanical strength;

[0037] Fluoroplastic insulation (FEP): Temperature range -65℃ to 200℃, dielectric strength >30kV / mm, maintaining low dielectric loss even at high temperatures, solving the high-temperature aging problem of traditional PVC / PE insulation; Polyester fiber braided mesh: Melting point 250℃ and abrasion resistance index >5000 times, replacing the fragility of silicone outer sheath, protecting the integrity of the cable core structure under high-temperature friction conditions; Temperature resistance and dynamic durability are synergistically optimized;

[0038] The inner fluoroplastic insulation layer (FEP) provides basic flexibility, while the outer sheath polyester fiber woven mesh achieves high modulus and low creep through a cross-woven structure, maintaining abrasion resistance even when the bending radius is ≤4D. Compared to the metal shielding layer, the polyester fiber woven mesh has a lower density, further reducing mechanical damage to the cable caused by motion inertia, ensuring the cable's abrasion resistance while enhancing overall flexibility.

[0039] The high-strength conductor, the heat-resistant insulation layer, and the wear-resistant and high-temperature-resistant sheath work together to meet the requirements for use in environments with frequent movement, and solve the need for high temperature resistance. This ensures the cable's wear resistance while enhancing its overall flexibility and extending the cable's service life. Attached Figure Description

[0040] Figure 1 A schematic diagram of the structure of a highly flexible wire provided by this utility model;

[0041] Among them, 1-conductor; 2-fluoroplastic insulation layer; 3-polyester fiber woven mesh; 4-first core wire; 5-second core wire; 6-bulletproof wire reinforcing filler; 7-first drain line; 8-wrapping layer; 9-second drain line; 10-silicone sheath. Detailed Implementation

[0042] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0043] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0044] like Figure 1 As shown, this utility model provides a highly flexible wire, including: a cable core, the cable core having a sheath on its outer side, the cable core including: multiple core wires, the core wires including: a conductor 1 and a fluoroplastic insulation layer 2 disposed on the outer side of the conductor 1, the conductor 1 including: tinned copper wires, multiple tinned copper wires and / or the bulletproof reinforcing filler wires being twisted together to form the conductor 1, the sheath including: a polyester fiber woven mesh 3 disposed on the outermost layer.

[0045] This utility model provides a highly flexible wire that breaks through the technical bottlenecks of flexible cables in terms of mechanical strength, temperature resistance, and dynamic durability. It can be used in environments with frequent movement and solves the need for high temperature resistance. It ensures the wear resistance of the cable while enhancing its overall flexibility and extending the service life of the wire.

[0046] Preferably, the fluoroplastic insulation layer 2 possesses high chemical stability and resistance to chemical corrosion, while also exhibiting fire resistance, high-temperature resistance, and flame retardant properties. The fluoroplastic insulation layer 2 has a high oxygen index, resulting in a small flame spread range and low smoke production during combustion. This makes the cable suitable for use in public places such as computer networks, subways, vehicles, and high-rise buildings, providing evacuation time and reducing fire-related injuries in the event of a fire. The cable's insulation and sheath layers have excellent anti-aging properties, maintaining stable electrical performance under various environmental conditions.

[0047] Preferably, the tin-plated copper wire comprises: a copper wire with a tin-plated layer on its outer side, the diameter of the tin-plated copper wire being 0.04–0.08 mm; the tin-plated layer prevents the copper wire from oxidizing and also improves welding performance during the welding process; multiple tin-plated copper wires and / or the bulletproof reinforcing filler wire are twisted together to form the conductor 1, the preferred diameter of the tin-plated copper wire being 0.04, 0.06, and 0.08 mm. Due to space limitations and for the sake of brevity, this utility model will not exhaustively list the specific values ​​included in the range. The preferred diameter of the tin-plated copper wire can increase flexibility and bendability; and the addition of bulletproof reinforcing filler wire during the twisting process of the conductor 1 can increase the strength and stability of the conductor 1.

[0048] Preferably, the core wire comprises:

[0049] At least one primary core wire with a specification of 28-32AWG;

[0050] Multiple second core wires with specifications of 23-27AWG 5.

[0051] The first core wire 4 is preferably 28AWG, 30AWG and 32AWG. Due to space limitations and for the sake of brevity, this utility model will not exhaustively list the specific values ​​included in the range. The first core wire 4 uses a thinner core wire with a specification of 28 to 32AWG (wire diameter 0.08 to 0.20mm), which significantly reduces the bending stiffness, reduces the overall cable bending radius, and adapts to high-frequency bending scenarios.

[0052] The second core wire 5 is preferably 23AWG, 25AWG, or 27AWG. Due to space limitations and for the sake of brevity, this utility model will not exhaustively list the specific values ​​included in the range. The second core wire 5 uses a specification of 23-27AWG (wire diameter 0.41-0.64mm) as the main support. The mechanical skeleton is formed by the stranded structure of the thick conductor to resist external tensile force and torsional deformation, thereby improving tensile strength. The multi-strand stranding of the core wire disperses stress, avoids fatigue fracture of a single conductor, and improves bending life under dynamic working conditions.

[0053] The second core wire 5, with a larger cross-sectional area (23-27AWG corresponding to 0.25-0.52mm²), is used to carry the main current, meeting the high-power transmission requirements of 5-15A; the first core wire 4 (28-32AWG corresponding to 0.03-0.08mm²) is used for low-power signal transmission or redundant backup, realizing differentiated current distribution and improving current transmission efficiency.

[0054] Multiple thick second core wires 5 are twisted together to reduce the skin effect during high-frequency current transmission. Compared with a single thick second core wire 5, the AC resistance is reduced, the power utilization rate is improved, the skin effect loss is reduced, and the current transmission efficiency is improved.

[0055] The multi-core wire independent insulation design (fluoroplastic insulation layer) avoids the risk of short circuit between core wires. Even if a single core wire breaks, the remaining core wires can still maintain circuit continuity.

[0056] Preferably, the cable core includes: at least one bulletproof wire reinforcing filler 6 and a first drainage line 7. The first core wire 4 and the second core wire 5 are disposed outside the bulletproof wire reinforcing filler 6. The first drainage line 7 is also disposed outside the bulletproof wire reinforcing filler 6 and is disposed between the second core wires 5. The first core wire 4, the second core wire 5 and the first drainage line 7 are of the same layer structure. The bulletproof wire reinforcing filler 6, as the central filler, can disperse external tensile force and bending stress, thereby increasing the tensile strength of the cable core and reducing the risk of conductor breakage caused by frequent movement. The bulletproof wire reinforcing filler 6, as the central filler, supports the outer core wire structure, preventing the core wire from being deformed under pressure and maintaining the stability of the conductor stranding shape. The first drainage line 7, disposed between the second core wires 5, guides accumulated static charge or lightning surges to the ground, reducing the risk of electrolytic corrosion of the fluoroplastic insulation layer 2. Compared with traditional external drainage lines, the built-in design shortens the charge migration path and improves the response speed.

[0057] Preferably, the protective layer includes: a wrapping layer 8, which is disposed on the outside of the first core wire 4, the second core wire 5 and the first drain wire 7; the wrapping layer 8 disperses external extrusion and friction stress, thereby improving the compressive strength of the cable and making it suitable for frequent movement scenarios of drag chain cables; in conjunction with the core wire stranding structure, it suppresses the radial displacement of the internal conductor and reduces the probability of wear of the core wire insulation layer under dynamic working conditions.

[0058] Preferably, the cable core includes: a second drain line 9, which is disposed in the gap between the wrapping layer 8 and the first core wire 4, the second core wire 5 and the first drain line 7, and the cross-sectional area of ​​the second drain line 9 is smaller than that of the first drain line 7; the first drain line 7 disposed between the second core wires 5 suppresses internal electric field distortion, and the second drain line 9 disposed in the gap between the wrapping layer 8 and the first core wire 4, the second core wire 5 and the first drain line 7 blocks external electromagnetic intrusion, thereby achieving spatial electric field balance and double-layer electrostatic shielding; the first drain line 7 (with a larger cross-sectional area) is responsible for discharging high-intensity surge current, and the second drain line 9 (with a smaller cross-sectional area) focuses on guiding low-intensity high-frequency induced current, avoiding insulation layer erosion caused by micro-current superposition, and achieving cross-sectional integral-level current conduction. This design, through the dual optimization of electromagnetic hierarchical shielding and mechanical elastic adaptation, breaks through the reliability bottleneck of high-flexibility cables under extreme electromagnetic environments and mechanical dynamic conditions.

[0059] Preferably, the protective layer includes a silicone sleeve 10, which is disposed on the outside of the wrapping layer 8. The silicone sleeve 10 has a temperature resistance rating of up to 200°C, excellent oil resistance and bending resistance, and can meet various ultra-high flexibility requirements.

[0060] Both the fluoroplastic insulation layer 2 and the silicone sheath 10 are made of high-temperature resistant materials. Even when used in high-temperature environments, the physical properties of the insulation and sheath will not become brittle and crack due to aging caused by temperature increases.

[0061] Preferably, the polyester fiber woven mesh 3 includes: a polyester filament woven mesh, which is arranged on the outside of the silicone sheath 10 by cross-weaving polyester filaments.

[0062] The cross-woven polyester filaments form a dense mesh armor, improving abrasion resistance, resisting external friction damage, and preventing the silicone sheath 10 from directly contacting rough surfaces and breaking. The high-modulus polyester filaments disperse local impact stress, reducing the risk of sheath puncture. The elastic modulus of the polyester filament braided mesh and the elastic modulus of the silicone sheath 8 form a rigid-flexible gradient, suppressing sheath wrinkles when the bending radius is ≤4D, thus extending the service life of the wire. The cross-woven polyester filaments limit the radial expansion of the silicone sheath 10, preventing the silicone sheath 10 from bulging and deforming at high temperatures. The polyester fiber filament braided mesh 3 is resistant to high-temperature impact, and the cross-woven structure allows the polyester fiber filament braided mesh 3 to maintain mechanical integrity under high-temperature conditions.

[0063] On the other hand, this utility model also provides a method for manufacturing a highly flexible wire, which includes the following manufacturing steps:

[0064] The cable core manufacturing process includes the following steps:

[0065] S1 is formed by twisting together multiple tin-plated copper wires and / or bulletproof wires and reinforcing filler wires to form conductor 1;

[0066] S2 forms a core wire by extruding a fluoroplastic insulation layer 2 onto the surface of conductor 1;

[0067] S3 twists multiple core wires and drain wires into a cable core;

[0068] The protective coating manufacturing process includes the following steps:

[0069] S4 applies a wrapping layer 8 to the outside of the cable core;

[0070] S5 has a silicone sheath 10 pressed and wrapped around the outer layer 8 of the strapping layer;

[0071] S6 is woven outside the silicone sheath 10 to form a polyester fiber filament woven mesh 3, resulting in a highly flexible wire.

[0072] This utility model provides a manufacturing method for highly flexible wires, which breaks through the technical bottlenecks of flexible cables in terms of mechanical strength, temperature resistance, and dynamic durability. It can be used in environments with frequent movement and solves the requirement for high temperature resistance. It ensures the wear resistance of the cable while enhancing the overall flexibility and extending the service life of the wire.

[0073] Preferably, the method further includes the following steps: the wrapping layer 8 in step S4 includes a wrapping tape, which includes aluminum foil or Mylar, and the wrapping tape forms the wrapping layer 8 on the outside of the cable core by wrapping or dragging.

[0074] The wrapping method integrates multiple core wires and drainage wires into a concentric circle structure, eliminating gaps and suppressing displacement deformation under dynamic working conditions.

[0075] The drag-and-pack method creates spiral reinforcing ribs in the aluminum foil / Mylar tape, improving the cable's torsional resistance.

[0076] The wrapping layer 8 serves as a flexible isolation layer, dispersing the compressive force applied by the metal strip during subsequent armoring processes and reducing the risk of damage to the core wire insulation layer.

[0077] Example 1

[0078] like Figure 1As shown, this utility model provides a highly flexible wire, comprising: a bulletproof wire reinforcing filler 6, wherein the outer side of the bulletproof wire reinforcing filler 6 is provided with a first core wire 4 of 30AWG, three second core wires 5 of 25AWG, and a first drain wire 7, the first drain wire 7 being disposed between the second core wires 5, the first core wire 4, the second core wires 5, and the first drain wire 7 being of the same layer structure, the core wire comprising: a conductor 1 and a fluoroplastic insulation layer 2 disposed on the outer side of the conductor 1, the conductor 1 comprising: tinned copper wire, multiple tinned copper wires and / or the bulletproof wire reinforcing filler wire being twisted together to form the conductor 1, the tinned copper wire comprising: copper wire, A tin-plated layer is provided on the outside of the copper wire, and the diameter of the tin-plated copper wire is 0.06mm. The wrapping layer 8 is disposed on the outside of the first core wire 4, the second core wire 5 and the first drain line 7. Five second drain lines 9 are disposed in the gaps between the wrapping layer 8 and the first core wire 4, the second core wire 5 and the first drain line 7, and the cross-sectional area of ​​the second drain line 9 is smaller than that of the first drain line 7. From the inside to the outside, a silicone sheath 10 and a polyester fiber woven mesh 3 are provided on the outside of the wrapping layer 8. The polyester fiber woven mesh 3 includes a polyester filament woven mesh, which is disposed on the outside of the silicone sheath 10 by cross-weaving polyester filaments.

[0079] This utility model also provides a method for manufacturing a highly flexible wire, which includes the following manufacturing steps:

[0080] The cable core manufacturing process includes the following steps:

[0081] S1 is formed by twisting together multiple tin-plated copper wires and / or bulletproof wires and reinforcing filler wires to form conductor 1;

[0082] S2 uses an extruder to extrude a fluoroplastic insulation layer 2 onto the surface of conductor 1 to form a core wire;

[0083] S3 twists multiple core wires and drain wires into a cable core;

[0084] The protective coating manufacturing process includes the following steps:

[0085] S4 applies a wrapping layer 8 to the outside of the cable core using a wrapping machine. The wrapping layer 8 includes a wrapping tape, which includes aluminum foil. The wrapping tape forms the wrapping layer 8 on the outside of the cable core by dragging the wrapping tape.

[0086] S5 uses an extruder to press and cover a silicone sheath 10 outside the wrapping layer 8;

[0087] S6 uses a textile machine to weave a polyester fiber filament woven mesh 3 outside the silicone sheath 10 to obtain a highly flexible wire.

[0088] The test data of the highly flexible wire in Example 1 are shown in Tables 1-3 below. Table 1 shows the test data of the insulation performance of the highly flexible wire, Table 2 shows the test data of the sheath of the highly flexible wire, and Table 3 shows the test data of the overall highly flexible wire.

[0089] Table 1. Test data on the fluoroplastic insulation performance of highly flexible wires

[0090]

[0091] Table 2 shows the test data for the sheath of highly flexible electrical wires.

[0092]

[0093]

[0094] Table 3. Overall test data of highly flexible wires

[0095]

[0096] As can be seen from Table 1-3, in Example 1, the fine-diameter wire surrounds the first core wire (30AWG: 372.3, ultra-fine conductor group) and the second core wire (25AWG: 100.8), forming a local Faraday cage to shield the crosstalk of weak electrical signals by the external strong electric field. In addition, other performance characteristics are also good. Therefore, the high-flexibility wire obtained in Example 1 breaks through the technical bottlenecks of flexible cables in terms of mechanical strength, temperature resistance, and dynamic durability. It can be used in environments with frequent movement and solves the requirement of high temperature resistance. It ensures the wear resistance of the cable while enhancing the overall flexibility and extending the service life of the wire. It ensures the safety and reliability of the high-flexibility consumer electronics wire, meets the charging needs of modern electronic products, and realizes the market demand.

[0097] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A highly flexible electrical wire, characterized in that, include: The cable core has a sheath on its outer side. The cable core includes multiple core wires, each core wire including a conductor and a fluoroplastic insulation layer disposed on the outside of the conductor. The conductor includes tinned copper wires, and multiple tinned copper wires and / or bulletproof reinforcing filler wires are twisted together to form the conductor. The sheath includes a polyester fiber woven mesh disposed on the outermost layer.

2. The highly flexible wire according to claim 1, characterized in that, The tin-plated copper wire comprises: copper wire with a tin-plated layer on the outside of the copper wire, and the diameter of the tin-plated copper wire is 0.04 to 0.08 mm.

3. The highly flexible wire according to claim 1, characterized in that, The core wire includes: At least one primary wire with a specification of 28-32AWG; Multiple second core wires with a specification of 23-27AWG.

4. The highly flexible wire according to claim 3, characterized in that, The cable core includes: at least one bulletproof wire reinforcing filler and a first drain line, the first core wire and the second core wire are disposed outside the bulletproof wire reinforcing filler, and the first drain line is also disposed outside the bulletproof wire reinforcing filler, the first drain line being disposed between the second core wires.

5. The highly flexible wire according to claim 4, characterized in that, The sheath includes a wrapping layer, which is disposed outside the first core wire, the second core wire, and the first drain wire.

6. The highly flexible wire according to claim 5, characterized in that, The cable core includes a second drain line, which is disposed in the gap between the wrapping layer and the first core wire, the second core wire and the first drain line, and the cross-sectional area of ​​the second drain line is smaller than the cross-sectional area of ​​the first drain line.

7. The highly flexible wire according to claim 5, characterized in that, The protective layer includes a silicone sleeve, which is disposed on the outside of the wrapping layer.

8. The highly flexible wire according to claim 7, characterized in that, The polyester fiber woven mesh includes a polyester filament woven mesh, which is arranged on the outside of the silicone sheath by cross-weaving polyester filaments.

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