Method for improving heating uniformity of nano carbon conductive fabric

Abstract

The invention belongs to the field of functional textile preparation, and provides a method for improving the heating uniformity of a nano carbon conductive fabric, which comprises the following steps of: introducing yarns with high thermal conductivity as warp yarns, and embedding and weaving electrode yarns at certain intervals in the warp direction according to the fabric design; the common yarns and the conductive heating yarns serve as weft yarns. The yarns with different properties are woven to form a conductive loop, and the electrode yarns with high conductivity are used as wires and are connected with a power supply to realize electrification; the conductive heating yarns are used as electric heating yarns to realize a heating function after being electrified; after being heated, the yarns with high thermal conductivity quickly conduct heat of the heating area to the whole fabric surface along the warp direction of the fabric by utilizing the outstanding thermal conductivity of the yarns, so that the temperature difference between the heating area and the non-heating area of the nano carbon conductive fabric is reduced, and the temperature uniformity of the whole fabric is improved. Meanwhile, the heat of the heating area is conducted to the non-heating area, so that the overall temperature of the fabric is reduced to a certain extent, the situation that the local temperature is too high is avoided, and the safety of a product is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of functional textile preparation, and in particular relates to a method for improving the heating uniformity of nano-carbon conductive fabrics. Background Art

[0002] As people's demand for functional products increases, electric heating products including electric heating clothing, electric heating protective gear, electric heating blankets, electric heating mattresses, etc. are widely used in people's lives. Among them, nano-carbon conductive fabric is one of the electric heating materials currently on the market. Nano-carbon conductive fabric achieves heating of flexible fabrics by weaving. It has the characteristics of bending resistance, comfortable breathability, and no foreign body feeling. However, it is also necessary to design the heating area and power according to the product application of the heating sheet. In order to ensure the required heating area, it is generally designed to be strip-shaped or block-shaped for heating. The fabric will inevitably have heating areas and non-heating areas, so there is a problem of uneven temperature. Especially for some people who are more sensitive to temperature, uneven temperature will bring an uncomfortable product experience. If the temperature is not well controlled, there will also be a problem of too high temperature in the heating area. At the same time, it cannot meet the use requirements of products with high requirements for temperature uniformity. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to provide a method for improving the heating uniformity of nano-carbon conductive fabrics, reduce the temperature difference between the heating area and the non-heating area of ​​the nano-carbon conductive fabric, and improve the temperature uniformity of the entire fabric. At the same time, because the heat from the heating area is transferred to the non-heating area, the temperature of the entire fabric is reduced to a certain extent, thereby avoiding the situation of excessively high local temperature and ensuring the safety of the product.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A method for improving the heating uniformity of nano-carbon conductive fabrics, the preparation process flow is: warp guide cylinder → yarn hanging → warping → drawing in → reed cutting → hanging machine → weaving → unmachine → inspection and finishing → winding, characterized in that high thermal conductivity yarn is introduced as warp yarn, and at the same time, according to the fabric design, electrode yarn is embedded and woven at a certain interval in the warp direction, and conductive heating yarn is woven in the weft direction; the high thermal conductivity yarn is one of high-strength polyethylene filament, jade fiber, mica fiber, silicon carbide nylon fiber, stainless steel blended yarn, silver-plated blended yarn, axial thermal conductivity is not less than 0.8W / (m·K), and the fineness is 100-600D.

[0006] The electrode yarn is one of copper metal wire, nickel metal wire, copper nickel-plated wrapped yarn, nickel wrapped yarn, and aramid silver-plated yarn, with a resistance of no more than 80Ω / m and a yarn fineness of 150-1500D.

[0007] The conductive heating yarn is a nano-carbon composite yarn with a resistance of 2 to 60 KΩ / m and a yarn fineness of 100 to 1000D.

[0008] The warping process adopts a slit warping method, and the warp yarns are high thermal conductivity yarns and electrode yarns, or the warp yarns are high thermal conductivity yarns, ordinary yarns and electrode yarns. High thermal conductivity yarns and ordinary yarns are warped in one axis, and electrode yarns are warped in another axis to ensure tension control and weavability of yarns with different properties.

[0009] The warp yarns except the electrode yarns are yarns with high thermal conductivity. Alternatively, the warp yarns except the electrode yarns also include yarns with high thermal conductivity and common yarns, and the yarns with high thermal conductivity and common yarns are arranged at intervals in a ratio of 1:1 to 20:20.

[0010] The high-conductivity electrode yarns are woven into the fabric as warp yarns, and the electrode yarns are closely arranged in groups of 8 to 50, with a spacing of 2 to 100 cm between each group of electrode yarns. The electrode yarns are designed in a double array, and two groups of electrode yarns form an effective heating area.

[0011] The density ratio of the electrode yarn to the remaining warp yarn is 1:1-3:1, and the density of the warp yarn is 40-150 yarns / inch.

[0012] In the hanging loom process, the loom is a rapier loom with upper and lower warp beams, the warp beam of the electrode yarn is the upper beam, and the warp beam of the non-electrode yarn is the lower beam. The tension of the upper and lower warp beams is set respectively, and the tension of the electrode yarn is greater than the tension of the non-electrode yarn.

[0013] The weaving process is to weave the weft conductive heating yarn and the common yarn into the fabric by weft insertion and weft beating, wherein the conductive heating yarn is grouped into 1 to 100 yarns, and the density of the weft yarn is 30 to 80 yarns / inch.

[0014] Beneficial Effects

[0015] The present invention discloses a method for improving the heating uniformity of nano-carbon conductive fabrics. Compared with the existing process, the present invention has the following beneficial effects:

[0016] (1) High thermal conductivity yarn, electrode yarn, and ordinary yarn are used as warp yarns, and conductive heating yarn and ordinary yarn are used as weft yarns for weaving to achieve circuit connection heating. At the same time, the high thermal conductivity yarn quickly transfers the heated heat to the entire fabric surface, reducing the temperature difference between the heating area and the non-heating area, achieving uniform temperature of the entire fabric, and meeting people's demand for uniform heating products.

[0017] By weaving high thermal conductivity yarn into the fabric, the temperature of the heating area can be quickly transferred to the non-heating area, so that the temperature of the heating area will be reduced to a certain extent, thus avoiding the situation of excessive local temperature. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is described clearly and completely below in conjunction with the embodiments. 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.

[0019] Example 1

[0020] The present invention provides a method for improving the heating uniformity of nano-carbon conductive fabrics, and the preparation process is as follows: warp guide → yarn hanging → warping → drawing in the heald → cutting the reed → hanging the machine → weaving → unloading the machine → inspection and finishing → rolling. The warp yarn is composed of yarns with high thermal conductivity and ordinary yarns arranged at a certain interval. At the same time, according to the fabric design, electrode yarns are woven at a certain interval in the warp direction, and conductive heating yarns are woven in the weft direction.

[0021] The warping process adopts the slit warping method, with high thermal conductivity yarn and ordinary yarn warping on one axis and electrode yarn warping on another axis. The loom is a rapier loom with upper and lower warp beams, and the tension of the upper and lower warp beams can be set separately. The warp beam of the electrode yarn is the upper axis with a warp density of 105 strands / inch, and the warp beam of the non-electrode yarn is the lower axis with a warp density of 70 strands / inch. The tension of the electrode yarn is greater than that of the non-electrode yarn.

[0022] The warp yarns are arranged as follows during warping: A yarn is a yarn with high thermal conductivity, 400D PE filament; B yarn is an electrode yarn, copper-nickel-plated wrapped yarn; C yarn is a common yarn, 400D polyester FDY filament; the numbers before the letters in the following brackets represent the heald frame, and the numbers after the * outside the brackets represent the number of cycles. Side organization: (1A 2A)*14*2; Ground organization: (7A 8A 9A 10A 7C8C 9C 10C)*17(3B 4B 5B 6B)*6(7A8A 9A 10A 7C 8C 9C 10C)*93(3B 4B 5B 6B)*6(7A8A 9A 10A 7C 8C 9C 10C)*7(3B 4B 5B 6B)*6(7A 8A 9A 10A 7C 8C 9C 10C)*93(3B 4B5B 6B)*6(7A 8A 9A 10A 7C 8C 9C 10C)*17, where the steel reed number is 68.6#, the reed A yarn and C yarn are 2 in, and the B yarn is 3 in. The fabric width is 72cm, and there are 4 groups of electrode yarns. The weft yarn arrangement during weaving is: 22a 72b, a is 350D nano carbon composite yarn, b is 300D polyester FDY filament, and the number before the letter represents the number of roots. The density of the two weft yarns is the same, and the weft density is 50 roots / inch.

[0023] In the warp direction of the conductive fabric, the yarns with high thermal conductivity and ordinary yarns are arranged at a root spacing of 4:4. The electrode yarns with high electrical conductivity are woven into the fabric with large spacing as warp yarns. The electrode yarns with high electrical conductivity are grouped into a group of 24 yarns, and the spacing between the two groups is 27 cm. The yarns with high thermal conductivity and ordinary yarns are distributed in the middle. The yarns with high thermal conductivity are high-strength polyethylene PE filaments, whose axial thermal conductivity is 1.2W / (m·K) and the fineness is 400D. The ordinary yarn is 400D polyester FDY filament. The electrode yarn is copper-plated nickel wrapped yarn with a resistance of 4.5Ω / m and a fineness of 1000D. In the weft direction of the conductive fabric, the conductive heating yarn is a nano-carbon composite yarn with a resistance of 38KΩ / m and a fineness of 350D. The conductive heating yarns are grouped into 22 pieces, with 300D polyester FDY filament yarns in between. The conductive heating yarns are distributed in strips, with a distance of 3.7 cm between each strip. The conductive fabric is connected to a 24V voltage, and a multi-channel temperature recorder is used to test the temperature of the heating area and the non-heating area of ​​the conductive fabric to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0024] Example 2

[0025] The present invention provides a method for improving the heating uniformity of nano-carbon conductive fabrics, and the preparation process is: warp guide → yarn hanging → warping → reed drawing → reed cutting → hanging machine → weaving → unloading machine → inspection and finishing → rolling. The high thermal conductivity yarn is jade fiber filament, and its axial thermal conductivity is 1.0W / (m·K) and the fineness is 300D. The rest is exactly the same as Example 1. The conductive fabric is connected to a voltage of 24V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0026] Example 3

[0027] The present invention provides a method for improving the heating uniformity of nano-carbon conductive fabrics, and the preparation process is as follows: warp yarn guide cylinder → yarn hanging → warping → drawing in the heald → cutting the reed → hanging the machine → weaving → unloading the machine → inspection and finishing → rolling. The nano-carbon conductive fabric uses high thermal conductivity yarn and electrode yarn as warp yarn, and conductive heating yarn is woven into the weft direction.

[0028] The warping process adopts the slit warping method, with high thermal conductivity yarn warping on one axis and electrode yarn warping on another axis. The loom is a rapier loom with upper and lower warp beams, and the tension of the upper and lower warp beams can be set separately. The warp beam of the electrode yarn is the upper axis with a warp density of 105 strands / inch, and the warp beam of the high thermal conductivity yarn is the lower axis with a warp density of 70 strands / inch.

[0029] The warp yarns are arranged as follows during warping: A yarn is a yarn with high thermal conductivity, 400D PE filament; B yarn is an electrode yarn, copper-nickel-plated wrapped yarn; the numbers before the letters in the following brackets represent the heald frame, and the numbers after the * outside the brackets represent the number of cycles. Edge weave: (1A 2A)*14*2; Ground weave: (7A 8A 9A 10A)*34(3B 4B 5B 6B)*6(7A 8A 9A 10A)*186(3B 4B 5B 6B)*6(7A 8A 9A10A)*14(3B 4B 5B 6B)*6(7A 8A 9A10A)*186(3B 4B 5B6B)*6(7A 8A 9A 10A)*34, the reed number is 68.6#, the reed A yarn is 2 in, and the B yarn is 3 in. The fabric width is 72cm, and there are 4 groups of electrode yarns. The weft yarns are arranged as follows: 22a 72b, where a is 350D nano-carbon composite yarn and b is 300D polyester FDY filament. The numbers before the letters represent the number of yarns. The density of the two weft yarns is the same, with a weft density of 50 yarns / inch.

[0030] In the warp direction of the conductive fabric, the electrode yarn is grouped into 24 pieces, and the spacing between the two groups is 27cm. In the middle, high-strength polyethylene PE filament with high thermal conductivity is distributed, and its axial thermal conductivity is 1.2W / (m·K) and the fineness is 400D. The electrode yarn is 1000D copper-plated nickel wrapped yarn with a resistance of 4.5Ω / m. In the weft direction of the conductive fabric, the conductive heating yarn is a nano-carbon composite yarn with a resistance of 38KΩ / m and a fineness of 350D. The conductive heating yarn is grouped into 22 pieces, and ordinary yarn is spaced in the middle, distributed in strips, and the distance between each strip is 3.7cm. The ordinary yarn is 300D polyester FDY filament. The conductive fabric is connected to a voltage of 24V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0031] Example 4

[0032] The present invention provides a method for improving the heating uniformity of nano-carbon conductive fabrics, and the preparation process is as follows: warp yarn guide cylinder → yarn hanging → warping → drawing in the heald → cutting the reed → hanging the machine → weaving → unloading the machine → inspection and finishing → rolling. The nano-carbon conductive fabric uses high thermal conductivity yarn and electrode yarn as warp yarn, and conductive heating yarn is woven into the weft direction.

[0033] The warping process adopts the slit warping method, with high thermal conductivity yarn warping on one axis and electrode yarn warping on another axis. The loom is a rapier loom with upper and lower warp beams, and the tension of the upper and lower warp beams can be set separately. The warp beam of the electrode yarn is the upper axis with a warp density of 135 strands / inch, and the warp beam of the high thermal conductivity yarn is the lower axis with a warp density of 45 strands / inch.

[0034] The warp yarns are arranged as follows during warping: A yarn is a high thermal conductivity yarn, 600D mica fiber filament; B yarn is an electrode yarn, 150D aramid silver-plated yarn; the numbers before the letters in the following brackets represent the heald frame, and the numbers after the * outside the brackets represent the number of cycles. Edge weave: (1A2A)*20*2; Ground weave: (7A 8A 9A 10A)*67(3B 4B 5B 6B)*8(7A8A 9A 10A)*72(3B 4B 5B 6B)*8(7A 8A 9A 10A)*45(3B 4B 5B 6B)*8(7A 8A 9A 10A)*72(3B 4B 5B 6B)*8(7A 8A 9A 10A)*67, the reed number is 90#, the reed A yarn is 1 in, and the B yarn is 3 in. The fabric width is 80cm, and there are 4 groups of electrode yarns. The weft yarns are arranged as follows: 10a 110b, a is 200D nano-carbon composite yarn, b is 200D polyester FDY filament, and the numbers before the letters represent the number of yarns. The density of the two weft yarns is the same, with a weft density of 70 yarns / inch.

[0035] In the warp direction of the conductive fabric, the electrode yarn is grouped into 32 pieces, and the spacing between the two groups is 16cm. In the middle, the mica fiber filament with high thermal conductivity is distributed, and its axial thermal conductivity is 0.9W / (m·K) and the fineness is 600D. The electrode yarn is 150D aramid silver-plated yarn with a resistance of 5Ω / m. In the weft direction of the conductive fabric, the conductive heating yarn is a nano-carbon composite yarn with a resistance of 60KΩ / m and a fineness of 200D. The conductive heating yarn is grouped into 10 pieces, with ordinary yarns in the middle, distributed in strips, and the distance between each strip is 4cm. The ordinary yarn is 200D polyester FDY filament. The conductive fabric is connected to a voltage of 24V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0036] Example 5

[0037] The present invention provides a method for improving the heating uniformity of nano-carbon conductive fabrics, and the preparation process is as follows: warp yarn guide cylinder → yarn hanging → warping → drawing in the heald → cutting the reed → hanging the machine → weaving → unloading the machine → inspection and finishing → rolling. The nano-carbon conductive fabric uses high thermal conductivity yarn and electrode yarn as warp yarn, and conductive heating yarn is woven into the weft direction.

[0038] The warping process adopts the slit warping method, with high thermal conductivity yarn warping on one axis and electrode yarn warping on another axis. The loom is a rapier loom with upper and lower warp beams, and the tension of the upper and lower warp beams can be set separately. The warp beam of the electrode yarn is the upper axis with a warp density of 105 strands / inch, and the warp beam of the high thermal conductivity yarn is the lower axis with a warp density of 70 strands / inch.

[0039] The warp yarns are arranged as follows during warping: A yarn is a high thermal conductivity yarn, 300D jade fiber filament; B yarn is an electrode yarn, nickel wrapped yarn; the numbers before the letters in the following brackets represent the heald frame, and the numbers after the * outside the brackets represent the number of cycles. Side weave: (1A 2A)*14*2; Ground weave: (7A 8A 9A 10A)*57[(3B 4B 5B 6B)*6(7A 8A 9A10A)*17]*44(7A 8A 9A 10A)*40, of which the reed number is 68.6#, the reed A yarn is 2-in, and the B yarn is 3-in. The fabric width is 150cm, and there are 44 groups of electrode yarns. The weft yarns are arranged as follows: 18a 30b, where a is 500D nano-carbon composite yarn and b is 300D polyester FDY filament. The numbers before the letters represent the number of yarns. The density of the two weft yarns is the same, with a weft density of 50 yarns / inch.

[0040] In the warp direction of the conductive fabric, the electrode yarn is grouped into 24 yarns, with a spacing of 2.5 cm between the two groups. In the middle, the high thermal conductivity yarn 300D jade fiber filament is distributed, and its axial thermal conductivity is 1.0W / (m·K). The electrode yarn is 1100D nickel-wrapped yarn with a resistance of 15Ω / m. In the weft direction of the conductive fabric, the conductive heating yarn is a nano-carbon composite yarn with a resistance of 30KΩ / m and a fineness of 500D. The conductive heating yarn is grouped into 18 yarns, with ordinary yarns in the middle, distributed in strips, and the distance between each strip is 1.5 cm. The ordinary yarn is 300D polyester FDY filament. The conductive fabric is connected to a voltage of 5V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0041] Comparative Example 1

[0042] The preparation process is as follows: warp guide → yarn hanging → warping → drawing in → reed cutting → hanging → weaving → unloading → inspection → rolling. The warp yarn is composed of ordinary yarn and electrode yarn, and the ordinary yarn is 400D polyester FDY filament, and its axial thermal conductivity is 0.21W / (m·K). The rest is exactly the same as Example 3. The conductive fabric is connected to a voltage of 24V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0043] Comparative Example 2

[0044] The preparation process is as follows: warp guide → yarn hanging → warping → drawing in → reed cutting → hanging → weaving → unloading → inspection → rolling. The warp yarn is composed of ordinary yarn and electrode yarn, and the ordinary yarn is 600D polyester FDY filament, and its axial thermal conductivity is 0.26W / (m·K). The rest is exactly the same as Example 4. The conductive fabric is connected to a voltage of 24V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0045] Comparative Example 3

[0046] The preparation process is as follows: warp guide → yarn hanging → warping → drawing in → reed cutting → hanging → weaving → unloading → inspection → rolling. The warp yarn is composed of ordinary yarn and electrode yarn, and the ordinary yarn is 300D polyester FDY filament, and its axial thermal conductivity is 0.2W / (m·K). The rest is exactly the same as Example 5. The conductive fabric is connected to a voltage of 5V, and the temperature of the heating area and the non-heating area of ​​the conductive fabric is tested with a multi-channel temperature recorder to obtain the temperature difference and determine the improvement of its heating uniformity. The results are shown in Table 1.

[0047] Table 1 Comparison of the temperature results of the heating zone and the non-heating zone in the embodiment and the comparative example

[0048] Nanocarbon conductive fabric Heating zone temperature ℃ Non-heating zone temperature ℃ Temperature difference ℃ Example 1 51.6 48.2 3.4 Example 2 52.1 47.8 4.3 Example 3 51 48.5 2.5 Comparative Example 1 53.4 43.8 9.6 Example 4 56.2 51.4 4.8 Comparative Example 2 59.6 47.9 11.7 Example 5 52.1 50.7 1.4 Comparative Example 3 54.6 48.3 6.3

Claims

1. A method for improving the heating uniformity of nano-carbon conductive fabrics, the preparation process is: warp guide cylinder → yarn hanging → warping → drawing in → reed cutting → hanging machine → weaving → unloading machine → inspection and finishing → rolling, characterized in that: Yarns with high thermal conductivity are introduced as warp yarns. At the same time, according to the fabric design, electrode yarns are woven at a certain interval in the warp direction, and conductive heating yarns are woven in the weft direction. The yarns with high thermal conductivity are one of high-strength polyethylene filaments, jade fibers, mica fibers, silicon carbide nylon fibers, stainless steel blended yarns, and silver-plated blended yarns. The axial thermal conductivity is not less than 0.8W / (m·K), and the fineness is 100-600D.

2. A method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: The electrode yarn is one of copper metal wire, nickel metal wire, copper nickel-plated wrapped yarn, nickel wrapped yarn, and aramid silver-plated yarn, with a resistance not higher than 80Ω / m and a yarn fineness of 150-1500D.

3. A method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: The conductive heating yarn is a nano-carbon composite yarn with a resistance of 2-60KΩ / m and a yarn fineness of 100-1000D.

4. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: The warping process adopts a slit warping method, and the warp yarns are yarns with high thermal conductivity and electrode yarns, or the warp yarns are yarns with high thermal conductivity, ordinary yarns and electrode yarns; the yarns with high thermal conductivity and ordinary yarns are warped on one axis, and the electrode yarns are warped on another axis to ensure the tension control and weavability of yarns with different properties.

5. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: Except for the electrode yarns, the rest of the warp yarns are yarns with high thermal conductivity.

6. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: In addition to the electrode yarn, the warp yarn also includes yarn with high thermal conductivity and common yarn, and the two yarns are arranged at intervals in a ratio of 1:1 to 20:

20.

7. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: The high-conductivity electrode yarns are woven into the fabric as warp yarns, and the electrode yarns are closely arranged in groups of 8 to 50, with a spacing of 2 to 100 cm between each group of electrode yarns. The electrode yarns are designed in a double array, and two groups of electrode yarns form an effective heating area.

8. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: The density ratio of the electrode yarn to the remaining warp yarn is 1:1-3:1, and the density of the warp yarn is 40-150 yarns / inch.

9. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: In the hanging loom process, the loom is a rapier loom with upper and lower warp beams, the warp beam of the electrode yarn is the upper beam, and the warp beam of the non-electrode yarn is the lower beam. The tension of the upper and lower warp beams is set respectively, and the tension of the electrode yarn is greater than the tension of the non-electrode yarn.

10. The method for improving heating uniformity of nano-carbon conductive fabric according to claim 1, characterized in that: The weaving process is to weave the weft conductive heating yarn and the common yarn into the fabric by weft insertion and weft beating, wherein the conductive heating yarn is grouped into 1 to 100 yarns, and the density of the weft yarn is 30 to 80 yarns / inch.