Comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric

Abstract

The invention relates to a comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulation arc-proof fabric which comprises an outer layer, a middle layer and an inner layer. Wherein the outer-layer yarns are high-performance protective yarns and comprise at least two kinds of fibers of modacrylic, flame-retardant viscose, aramid fibers 1414, aramid fibers 1313, polyimide and polyphenylene sulfide fibers; the middle layer is made of high-temperature-resistant monofilaments or multifilaments; the inner layer is processed by adopting flame-retardant comfortable yarns and comprises at least two kinds of fibers of modacrylic, flame-retardant viscose, aramid 1414, aramid 1313, polyimide and polyphenylene sulfide fibers. The flame-retardant, heat-insulating and arc-preventing fabric is efficient, simple and convenient to produce, convenient and simple in structure implementation, complete and clear in three-dimensional structure, soft in hand feeling, comfortable and breathable, has high thermal resistance and high dielectric properties, protects a human body from being impacted by external heat and arcs, and effectively protects life safety of a wearer.

Description

Technical Field

[0001] The invention relates to the field of safety protection textiles, and in particular to a flame-retardant, heat-insulating and arc-proof fabric with a comfortable warp-knitted air layer three-dimensional structure. Background Art

[0002] Near high-voltage electric fields, air is ionized and conducted, resulting in arc discharge. People in the field are at high risk of being injured by the arc. The damage caused by the arc to the human body is mainly in the form of heat. The instantaneous high temperature released by the arc causes people to suffer from explosion shock, burns, carbonization and other injuries. Therefore, the protection of arc and heat in individual protection are essentially the same, and they are different paths to the same end. There are three ways to transfer heat: convection, radiation, and conduction. In situations where heat protection is required, people usually start from these three paths to block the heat, thereby achieving the purpose of protecting people. In situations where clothing is required to provide heat protection to play a protective role, the commonly used method is to reduce convective heat and block radiant heat.

[0003] In specific operations, by utilizing the low thermal conductivity of air, various means can be used to increase the air content in clothing and reduce the efficiency of heat conduction to the human body. A thicker air layer or aerogel layer can also be set in the protective fabric to directly form a low thermal conductivity insulation layer to reduce the damage caused by heat to the human body, thereby giving firefighters more time to escape. In addition to being simple and efficient as an insulation layer, air itself has the dielectric properties. In arc protection clothing, the performance of arc protection clothing can also be improved by adding an air layer to the clothing or using materials with excellent dielectric properties. The dielectric constants of various high-performance fiber materials for clothing are shown in Table 1.

[0004] Table 1 Dielectric coefficients of fabric related materials

[0005]

[0006] The patent with publication number CN115216877A uses a unique fabric structure and special component design to design a double-layer fabric that can shrink differentially between the inner and outer layers when the fabric is burned, thereby forming a thicker air layer on the fabric, which plays a good role in blocking heat. The patent with publication number CN112030307A uses a special fabric structure to add a thicker double-layer fabric as a heat insulation layer, and at the same time, aerogel is coated on both sides of the heat insulation layer fabric, thereby effectively improving the heat insulation of the fabric. The thermal protection of the designed fabric can reach 36.76cal / cm 2. The patent with publication number CN218521390U adopts specific fiber components and combines with a special double-layer fabric structure design to form alternating three-dimensional air tubes in the warp direction of the fabric, which greatly increases the air content in the protective fabric, allowing it to contain more still air, thereby improving the thermal protection performance of the welding fabric. The patent with publication number CN216032992U adopts fiber components such as nylon to ensure the flame retardancy of the fabric and good arc protection performance. Combined with a special double-layer structure design, it has a good three-dimensional structure, which increases the overall thickness of the fabric and forms a thicker air layer, effectively improving the arc protection and thermal protection performance indicators.

[0007] Since weaving adopts the warp and weft interlacing method, it is necessary to use twice the weft yarn to form a double-layer structure with a high air content, and weave a two-layer interlaced structure. At the same speed, the length of the fabric woven by the loom is only half of the normal length. Therefore, even for high-speed looms, the weaving efficiency is relatively low. Secondly, since the three-dimensional structure is achieved by the warp and weft interlacing method, the structural design is relatively complex, and the loom implementation process is difficult, which also leads to low efficiency. In addition, woven fabrics are made of warp and weft yarns interlaced on a plane, so the thickness of the fabric is very limited, the air layer formed is relatively thin, and the thickness cannot be adjusted at will, so this structure is also called a "2.5D" structure. Even in some schemes, the use of materials with differential heat shrinkage characteristics can form a thicker double-layer structure, but the thickness of the fabric is also affected by the rigidity of the material at high temperature and cannot exceed 1cm, and the thickness change is uncontrolled. Therefore, it is difficult to form a fabric with a certain thickness by weaving, and the effect is not ideal, and the development is limited. In order to improve the thermal protection performance of the fabric, the method of increasing the fabric thickness is generally adopted. However, the fabric produced in this way has a relatively large gram weight, is relatively thick and heavy, and the breathability and flexibility are affected by the protection performance requirements and cannot be improved. Therefore, the wearing comfort is poor, and the wearer often feels stuffy and uncomfortable.

[0008] Based on this, the present invention provides a comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric. Summary of the invention

[0009] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a comfortable warp-knitted air layer three-dimensional structure flame-retardant, heat-insulating and arc-proof fabric to solve the problems of low weaving efficiency, complex weaving structure, great production difficulty, inconvenient air layer structure adjustment, limited thickness, thick and bulky fabrics produced, and poor flexibility and air permeability of existing woven fabric structures.

[0010] The present invention provides a comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric, comprising an outer layer, a middle layer and an inner layer;

[0011] The outer yarn is a high-performance protective yarn, which includes at least two fibers selected from the group consisting of chloronitrile, flame-retardant viscose, aramid 1414, aramid 1313, polyimide, and polyphenylene sulfide fibers;

[0012] The middle layer is made of high temperature resistant monofilament or multifilament;

[0013] The inner layer is made of flame-retardant comfort yarn, which includes at least two fibers selected from chloronitrile, flame-retardant viscose, aramid 1414, aramid 1313, polyimide and polyphenylene sulfide fibers.

[0014] Furthermore, the outer yarn includes 40-60 parts of chloronitrile, 20-50 parts of flame-retardant viscose, 131315-30 parts of aramid, 14145-20 parts of aramid, 0-20 parts of polyimide, and 0-20 parts of polyphenylene sulfide fiber.

[0015] Furthermore, the outer yarn components are specifically 40 parts of chloronitrile, 30 parts of flame retardant viscose, 131320 parts of aramid, 14145 parts of aramid, and 5 parts of polyphenylene sulfide.

[0016] Furthermore, the monofilament comprises high temperature resistant monofilament polyphenylene sulfide and / or polyphenylene sulfide sulfone with a diameter between 0.15-0.50 mm.

[0017] Furthermore, the multifilament includes at least one of high-performance, high-temperature-resistant fiber aramid 1414 with a fineness between 70D and 600D, polyimide and poly(p-phenylene benzobisoxazole) (PBO) fiber.

[0018] Furthermore, the inner layer yarn includes 40-65 parts of flame-retardant viscose, 15-25 parts of chloronitrile, 15-25 parts of polyphenylene sulfide fiber, 5-20 parts of polyimide, 14140-20 parts of aramid, and 13130-20 parts of aramid.

[0019] Furthermore, the inner layer yarn components are specifically 50 parts of flame retardant viscose, 25 parts of cyanamide, 15 parts of polyphenylene sulfide, 5 parts of polyimide, and 13135 parts of aramid.

[0020] Furthermore, the fabric can form 6,000 to 50,000 independent supports per square meter along the thickness direction of the fabric.

[0021] Furthermore, the fabric has a thickness of 0.3 cm to 3 cm.

[0022] Furthermore, the preparation method of the fabric comprises:

[0023] (1) Warping: preparing warp beam 1 for the outer layer of the woven fabric, warp beam 2 for the inner layer of the woven fabric, and warp beam 3 for the middle layer of the woven fabric;

[0024] (2) Weaving: S1, the yarn on the warp beam 1 is fully threaded on the comb 1, and the outer layer of the fabric is woven on the needle bed 1 by warp knitting; S2, the yarn on the warp beam 2 is fully threaded on the comb 2, and the inner layer of the fabric is woven on the needle bed 2 by warp knitting; S3, the yarn laying comb alternately lays the yarn on the warp beam 3 on the needle bed 1 and the needle bed 2 according to the set interval, and the interval between the needle bed 1 and the needle bed 2 is adjusted according to the designed thickness of the fabric. The yarn laying interval of the yarn laying comb is 2-10 circles high and 1-4 circles wide, which can form a yarn support perpendicular to the two sides of the fabric;

[0025] (3) Finishing: washing, dyeing, stretching and shaping.

[0026] Furthermore, in the step S1, the weaving tissue is a heavy warp tissue, the padding yarn number is 2-0 / 1-3 / / , the loop height is 60-110 pieces / 10cm, and the loop width is 40-80 pieces / 10cm.

[0027] Furthermore, in step S2, the weaving structure is a three-needle warp satin structure, the inlay yarn number is 0-1 / 2-1 / 3-2 / 1-2 / / , the loop height is 60-110 pieces / 10 cm, and the loop width is 40-80 pieces / 10 cm. 。

[0028] The beneficial effects of the present invention are:

[0029] Compared with woven fabrics, under the same weight conditions, the fabric in the present invention is thicker, and the thickness in the natural state can reach more than 0.3 cm. It can contain more still air and has excellent thermal protection and arc protection performance. The knitted structure is adopted, and the fabric is soft and breathable, with better air permeability, flexible to wear, and higher moisture permeability. The warp knitted 3D structure is adopted, and the fabric structure is three-dimensional, with good elasticity, stable and non-deformable, and the air layer will not collapse due to processing, extrusion, use, etc. At the same time, compared with woven multi-layer fabrics, the knitted 3D structure has higher processing efficiency and controllable thickness. Insulating arc fabrics of different thicknesses can be designed and woven according to needs.

[0030] The present invention uses warp knitting to design and develop a three-dimensional air layer structure fabric with flame retardant, heat insulating and arc proof functions. The present invention solves the problems of low weaving efficiency, complex weaving structure, great production difficulty, inconvenient air layer structure adjustment, limited thickness, thick and bulky fabrics, poor flexibility and air permeability of existing woven fabric structures. The purpose of efficient and simple production, convenient and concise structure realization, complete and clear three-dimensional structure, soft fabric feel, comfortable and breathable, high wearing flexibility is achieved, the fabric has a higher thickness, more static air layers, the dielectric constant can reach above 3.5, and the thermal protection coefficient (TPP) can reach up to 36cal / cm 2The above can protect the human body from the impact of external heat and electric arc, and effectively protect the life safety of the wearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a diagram of the knitting needle movement for the outer layer;

[0033] Figure 2 for Figure 1 Coil effect diagram;

[0034] Figure 3 This is the knitting needle movement diagram for the inner layer;

[0035] Figure 4 for Figure 3 Coil effect diagram;

[0036] Figure 5 This is a schematic diagram of the finished product. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] The preparation method of the comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric in this embodiment specifically includes three steps of warping-weaving-finishing;

[0040] (1) Warping:

[0041] According to the process design requirements, the yarn for the outer layer of the fabric is prepared into warp beam 1 according to the required amount of yarn for the outer layer of the fabric, the yarn for the inner layer of the fabric is prepared into warp beam 2 according to the required amount of yarn for weaving the inner layer of the fabric, and the monofilament used for the middle layer of the fabric is prepared into warp beam 3 according to the required amount of yarn for weaving the middle layer of the fabric.

[0042] The outer yarn components are 45 parts of chloronitrile, 25 parts of flame retardant viscose, 131315 parts of aramid, 10 parts of polyphenylene sulfide, and 14145 parts of aramid.

[0043] The high temperature resistant monofilament used in the middle layer is a polyphenylene sulfide monofilament with a diameter of 0.20 mm.

[0044] The inner layer yarn components include 45 parts of flame-retardant viscose, 20 parts of chloronitrile, 15 parts of polyphenylene sulfide, 10 parts of polyimide, 13135 parts of aramid and 14145 parts of aramid.

[0045] (2) Weaving:

[0046] The yarn on the warp beam 1 is fully threaded on the comb bar 1, and the outer layer of the fabric is woven on the needle bed 1 by warp knitting. The weaving structure uses a heavy warp structure, the padding number is 2-0 / 1-3 / / , and the knitting needle movement is as follows Figure 1 As shown, the loop height is 90 pieces / 10cm, the loop width is 60 pieces / 10cm, and the coil effect is as follows Figure 2 shown.

[0047] Figure 1 In the figure, the black dots represent the knitting needles, and the black lines represent the movement trajectory of a single yarn. The movement of the yarn is driven by the comb bar, and it forms a circle by winding around the knitting needles.

[0048] Figure 2 for Figure 1 The coil effect diagram. Among them, A is the height of the coil, B is the width of the coil, and the height and width of the coil are expressed by the number of such lengths within 10 cm.

[0049] The yarn on the warp beam 2 is fully threaded on the comb bar 2, and the inner layer of the fabric is woven on the needle bed 2 by warp knitting. The weaving structure uses a three-needle warp satin structure, and the padding number is 0-1 / 2-1 / 3-2 / 1-2 / / . The knitting needle movement is as follows: Figure 3 As shown, the loop height is 85 pieces / 10cm and the loop width is 62 pieces / 10cm. Figure 4 shown.

[0050] The yarn padding comb alternately pads the yarn on the warp beam 3 on the needle bed 1 and the needle bed 2 into loops with a height of 6 loops and a width of 2 loops. The distance between the needle bed 1 and the needle bed 2 is adjusted to a width of 2.5 cm to form a yarn support perpendicular to the two sides of the fabric.

[0051] The finished product looks like Figure 5 shown.

[0052] (3) Post-processing:

[0053] It is carried out in the manner of washing-dyeing-flat drying and shaping.

[0054] The finished fabric after dyeing and finishing has stable size and structure. According to calculation, the effective independent support formed between the inner and outer layers can reach 45,000 pieces / m 2The fabric thickness is 2.2cm, the relative dielectric constant is 3.6, and the thermal protection value can reach 37.7cal / cm according to the direct method test in GB 8965.1-2024. 2 .

[0055] Example 2

[0056] The preparation method of the comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric in this embodiment specifically includes three steps of warping-weaving-finishing;

[0057] (1) Warping:

[0058] According to the process design requirements, the yarn for the outer layer of the fabric is prepared into warp beam 1 according to the required amount of yarn for the outer layer of the fabric, the yarn for the inner layer of the fabric is prepared into warp beam 2 according to the required amount of yarn for weaving the inner layer of the fabric, and the monofilament used for the middle layer of the fabric is prepared into warp beam 3 according to the required amount of yarn for weaving the middle layer of the fabric.

[0059] The outer yarn components are 50 parts of chloronitrile, 20 parts of flame retardant viscose, 131315 parts of aramid, 10 parts of polyimide, and 14145 parts of aramid.

[0060] The high temperature resistant monofilament used in the middle layer is polyphenylene sulfide monofilament with a diameter of 0.30 mm.

[0061] The inner layer yarn components are 40 parts of flame retardant viscose, 15 parts of nylon, 18 parts of polyphenylene sulfide fiber, 7 parts of polyimide, 141410 parts of aramid, and 131310 parts of aramid.

[0062] (2) Weaving:

[0063] The yarn on the warp beam 1 is fully threaded on the comb bar 1, and the outer layer of the fabric is woven on the needle bed 1 by warp knitting. The weaving structure is a heavy warp structure, and the padding number is 2-0 / 1-3 / / , such as Figure 1 As shown, the loop height is 60 pieces / 10 cm and the loop width is 40 pieces / 10 cm.

[0064] The yarn on the warp beam 2 is fully threaded on the comb bar 2, and the inner layer of the fabric is woven on the needle bed 2 by warp knitting. The weaving structure uses a three-needle warp satin structure, and the padding number is 0-1 / 2-1 / 3-2 / 1-2 / / , such as Figure 3 As shown, the loop height is 65 pieces / 10 cm and the loop width is 43 pieces / 10 cm.

[0065] The yarn laying comb alternately lays the yarn on the warp beam 3 on the needle bed 1 and the needle bed 2 into loops with a height of 8 loops and a width of 4 loops. The distance between the needle bed 1 and the needle bed 2 is adjusted to a width of 3.0 cm to form a yarn support perpendicular to the two sides of the fabric.

[0066] (3) Post-processing:

[0067] Follow the method of water washing and flat drying to set.

[0068] The finished fabric after dyeing and finishing has stable size and structure. According to calculation, the effective independent support formed between the inner and outer layers can reach 7500 / m 2 The fabric thickness is 2.8cm, the relative dielectric constant is 3.8, and the thermal protection value can reach 36.5cal / cm according to the direct method test in GB 8965.1-2024. 2 .

[0069] Example 3

[0070] The preparation method of the comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric in this embodiment specifically includes three steps of warping-weaving-finishing;

[0071] (1) Warping:

[0072] According to the process design requirements, the yarn for the outer layer of the fabric is prepared into warp beam 1 according to the required amount of yarn for the outer layer of the fabric, the yarn for the inner layer of the fabric is prepared into warp beam 2 according to the required amount of yarn for weaving the inner layer of the fabric, and the monofilament used for the middle layer of the fabric is prepared into warp beam 3 according to the required amount of yarn for weaving the middle layer of the fabric.

[0073] The outer yarn components are 55 parts of chloronitrile, 20 parts of flame retardant viscose, 131320 parts of aramid, and 14145 parts of aramid.

[0074] The high temperature resistant multifilament used in the middle layer is aramid 1414 filament with a fineness of 200D.

[0075] The inner layer yarn components include 50 parts of flame-retardant viscose, 20 parts of chloronitrile, 15 parts of polyphenylene sulfide fiber, 10 parts of polyimide, and 13135 parts of aramid.

[0076] (2) Weaving:

[0077] The yarn on the warp beam 1 is fully threaded on the comb bar 1, and the outer layer of the fabric is woven on the needle bed 1 by warp knitting. The weaving structure uses a heavy warp structure, and the padding number is 2-0 / 1-3 / / , such as Figure 1 As shown, the loop height is 100 pieces / 10 cm and the loop width is 80 pieces / 10 cm.

[0078] The yarn on the warp beam 2 is fully threaded on the comb bar 2, and the inner layer of the fabric is woven on the needle bed 2 by warp knitting. The weaving structure uses a three-needle warp satin structure, and the padding number is 0-1 / 2-1 / 3-2 / 1-2 / / , such as Figure 3As shown, the loop height is 108 pieces / 10 cm and the loop width is 86 pieces / 10 cm.

[0079] The yarn padding comb alternately pads the yarn on the warp beam 3 on the needle bed 1 and the needle bed 2 into loops with a height of 10 loops and a width of 4 loops. The distance between the needle bed 1 and the needle bed 2 is adjusted to a width of 1.8 cm to form a yarn support perpendicular to the two sides of the fabric.

[0080] (3) Post-processing:

[0081] It is carried out in the manner of washing-dyeing-flat drying and shaping.

[0082] The finished fabric after dyeing has a stable size and structure. According to calculations, the effective independent support formed between the inner and outer layers can reach 20,000 pieces / m 2 The fabric thickness is 1.5cm, the relative dielectric constant is 3.8, and the thermal protection value can reach 38.2cal / cm according to the direct method test in GB 8965.1-2024. 2 .

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric, characterized in that: Includes outer layer, middle layer and inner layer; The outer yarn is a high-performance protective yarn, which includes at least two fibers selected from the group consisting of chloronitrile, flame-retardant viscose, aramid 1414, aramid 1313, polyimide, and polyphenylene sulfide fibers; The middle layer is made of high temperature resistant monofilament or multifilament; The inner layer is made of flame-retardant comfort yarn, which includes at least two fibers selected from chloronitrile, flame-retardant viscose, aramid 1414, aramid 1313, polyimide and polyphenylene sulfide fibers.

2. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: The outer yarn comprises 40-60 parts of chloronitrile, 20-50 parts of flame-retardant viscose, 131315-30 parts of aramid, 14145-20 parts of aramid, 0-20 parts of polyimide and 0-20 parts of polyphenylene sulfide fiber.

3. The comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric according to claim 1, characterized in that: The monofilaments include high temperature resistant monofilament polyphenylene sulfide and / or polyphenylene sulfide sulfone with a diameter between 0.15-0.50 mm.

4. The comfortable warp-knitted air layer three-dimensional structure flame-retardant heat-insulating arc-proof fabric according to claim 1, characterized in that: The multifilament includes at least one of high-performance high-temperature resistant fiber aramid 1414 with a fineness between 70D and 600D, polyimide and poly(p-phenylene benzobisoxazole) fiber.

5. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: The inner layer yarn comprises 40-65 parts of flame-retardant viscose, 15-25 parts of chloronitrile, 15-25 parts of polyphenylene sulfide fiber, 5-20 parts of polyimide, 14140-20 parts of aramid, and 13130-20 parts of aramid.

6. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: The fabric can form 6,000 to 50,000 independent supports per square meter along the thickness direction of the fabric.

7. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: The fabric thickness is 0.3 cm-3 cm.

8. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: The preparation method of the fabric comprises: (1) Warping: preparing warp beam 1 for the outer layer of the woven fabric, warp beam 2 for the inner layer of the woven fabric, and warp beam 3 for the middle layer of the woven fabric; (2) Weaving: S1, the yarn on the warp beam 1 is fully threaded on the comb 1, and the outer layer of the fabric is woven on the needle bed 1 by warp knitting; S2, the yarn on the warp beam 2 is fully threaded on the comb 2, and the inner layer of the fabric is woven on the needle bed 2 by warp knitting; S3, the yarn laying comb alternately lays the yarn on the warp beam 3 on the needle bed 1 and the needle bed 2 according to the set interval, and the interval between the needle bed 1 and the needle bed 2 is adjusted according to the designed thickness of the fabric. The yarn laying interval of the yarn laying comb is 2-10 circles high and 1-4 circles wide, which can form a yarn support perpendicular to the two sides of the fabric; (3) Finishing: washing, dyeing, stretching and shaping.

9. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: In the step S1, the weaving tissue is a heavy warp tissue, the padding yarn number is 2-0 / 1-3 / / , the loop height is 60-110 pieces / 10cm, and the loop width is 40-80 pieces / 10cm.

10. The comfortable warp-knitted flame-retardant, heat-insulating and arc-proof fabric with an air layer three-dimensional structure according to claim 1, characterized in that: In the step S2, the weaving structure is a three-needle warp satin structure, the padding yarn number is 0-1 / 2-1 / 3-2 / 1-2 / / , the loop height is 60-110 pieces / 10 cm, and the loop width is 40-80 pieces / 10 cm.

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