Fiber with conductive layer and preparation method thereof

Abstract

The invention provides a fiber with a conductive layer and a preparation method thereof, and the method comprises the following steps: A) uniformly mixing water and an anti-settling agent, adding a bonding resin, carrying out ultrasonic oscillation, adding a conductive material, and carrying out mixing dispersion in a bead mill to prepare a liquid phase resin; b) taking a fiber base material, and coating the liquid phase resin on the outer surface of the fiber base material by a coating method; and C) executing a high-temperature carbonization procedure or a metallization procedure to cure and shape the liquid-phase resin coated on the outer surface of the fiber base material. Therefore, industrial wastewater generated by a traditional electroplating process can be avoided in a coating method, and the method has the advantages of being environmentally friendly and low in cost.

Description

Technical Field

[0001] This invention relates to a fiber with a conductive layer and a method for preparing the same, wherein a conductive layer is coated on the outer surface of a fiber substrate by a coating method, so that the fiber substrate has a conductive layer completely covered by a conductive material. Background Technology

[0002] Currently, textile products such as thermostatic clothing, physiological sensing clothing, and embedded electronic clothing have been developed. These products combine conductive materials with textile fibers, weave the fibers into conductive fabrics, and finally create various garments. These garments, worn on the body, can receive and send electronic signals. These garments are called smart textiles and can be applied to fields such as sports and fitness, medical care, home life, fashion and entertainment, and military security. Besides directly combining conductive materials with fibers to create conductive fabrics, there are also methods to integrate conductive inks or conductive films into clothing. It is clear that the development of smart textiles is gradually becoming a trend in the future textile industry.

[0003] US Patent Publication No. US20180187077 A1 discloses a conductive fiber with a metallic coating, which first deposits a nickel metal layer on the fiber by chemical plating, and then electroplates one or more layers of metal materials such as tin, nickel, copper, silver, or gold onto the nickel metal layer. Although the combination of chemical plating and electroplating can deposit metal materials on the surface of the fiber material, the electroplating process itself generates industrial wastewater containing toxic heavy metals and cyanides. Therefore, the industrial wastewater generated by electroplating needs to be treated by downstream equipment before it can be discharged or recycled, which leads to a significant increase in manufacturing costs.

[0004] Furthermore, in the past, when manufacturing conductive fabrics, a single sheet of fabric was typically coated with conductive material to create a conductive layer across the entire surface. This fabric was then cut into pieces for garment production. However, after cutting, the conductive layer is lost at the cut edges, resulting in insufficient conductivity. Therefore, the inventors have been exploring how to provide an environmentally friendly process for coating conductive materials onto fiber materials, reducing manufacturing costs, and ensuring complete coverage of the fiber material. Summary of the Invention

[0005] In view of the fact that the existing conductive fiber process still has many shortcomings in actual use, the inventor has improved it by drawing on his rich professional knowledge and years of practical experience, and based on this, developed the present invention.

[0006] The main objective of this invention is to provide a method for preparing fibers with a conductive layer, which uses a coating method to coat a conductive layer onto the outer surface of the fiber material. Compared with electroplating, the preparation method of this invention has advantages such as environmental protection and low cost.

[0007] To achieve the above-mentioned objectives, the present invention provides a method for preparing a fiber with a conductive layer, comprising the following steps: A) mixing water and an anti-settling agent evenly, adding an adhesive resin, and after ultrasonic vibration, adding a conductive material, and then mixing and dispersing the mixture in a bead mill to prepare a liquid-phase resin; B) taking a fiber substrate and coating the liquid-phase resin onto the outer surface of the fiber substrate using a coating method; and C) performing a high-temperature carbonization or metallization process to cure and solidify the liquid-phase resin coated on the outer surface of the fiber substrate.

[0008] In one embodiment of the present invention, in step A), water and anti-settling agent are mixed evenly, and then a conductive polymer material and adhesive resin are added. After ultrasonic vibration, the conductive material is added, and after mixing and dispersion in a bead mill, a liquid phase resin is prepared.

[0009] In one embodiment of the present invention, the conductive polymer material is poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate),PEDOT:PSS.

[0010] In one embodiment of the present invention, in step A), water and anti-settling agent are mixed evenly, then adhesive resin is added, and after ultrasonic vibration, conductive material and a dye are added. After mixing and dispersing in a bead mill, liquid phase resin is prepared.

[0011] In one embodiment of the present invention, the fiber substrate is a natural fiber, a synthetic fiber, a woven fabric, a non-woven fabric, or a film, and the fiber substrate is dyed or undyed.

[0012] In one embodiment of the present invention, the anti-settling agent is at least one selected from the group consisting of sodium carboxyethyl cellulose (CMC), ammonium salt of polycarboxylic acid, polysulfonate, polyether salt, hydrogenated nitrile rubber (H-NBR), sodium salt of polynaphthalene sulphonic acid (NNO), gamma-butyrolactone (GBL), isophorone, butyl acetate, and ethyl acetate.

[0013] In one embodiment of the present invention, the bonding resin is at least one selected from the group consisting of waterborne polyurethane, thermoplastic polyurethane, polyester resin, poly(ethyl acrylate), polyacrylic acid resin, poly(butyl acrylate), unsaturated polyester resin, polyamide resin, polyvinyl acetate (PVA), waterborne rubber, and waterborne epoxy resin.

[0014] In one embodiment of the present invention, the conductive material is a single-walled carbon nanotube, a multi-walled carbon nanotube, or a metal particle.

[0015] In one embodiment of the present invention, step B) further includes a thickness control procedure to control the thickness of the liquid phase resin coated on the fiber substrate to be between 5 μm and 300 μm.

[0016] In one embodiment of the present invention, the denier number of the fiber substrate coated with liquid phase resin is increased by 5-300% compared to the fiber substrate without liquid phase resin coating.

[0017] In one embodiment of the present invention, the high-temperature carbonization or metallization process in step C) is performed by first performing a high-temperature carbonization or metallization treatment in a reaction chamber at a temperature of 100°C-180°C, then stretching the fiber substrate, and then performing a second high-temperature carbonization or metallization treatment in a reaction chamber at a temperature of 100°C-180°C, and stretching the fiber substrate again, so that the liquid resin coated on the surface of the fiber substrate is cured and shaped.

[0018] Another object of the present invention is to provide a fiber with a conductive layer, comprising a fiber substrate having an outer surface; and a conductive layer having an anti-settling agent, an adhesive resin and a conductive material, wherein the conductive layer is coated on the outer surface of the fiber substrate, and the conductive material is a single-walled carbon nanotube, a multi-walled carbon nanotube or a metal particle.

[0019] In another embodiment of the present invention, the thickness of the conductive layer is 5μm-300μm.

[0020] In another embodiment of the present invention, the resistance value of the conductive layer is 10. -4 -10 8 Ω / cm.

[0021] In another embodiment of the present invention, the denier number of the fiber substrate coated with the conductive layer is increased by 5-300% compared to the fiber substrate without the conductive layer.

[0022] In another embodiment of the present invention, the conductive layer further comprises a conductive polymer material.

[0023] In another embodiment of the present invention, the conductive layer further comprises a dye. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the structure according to an embodiment of the present invention;

[0025] Figure 2 This is a manufacturing process diagram of an embodiment of the present invention;

[0026] Figure 3 This is a flowchart illustrating the manufacturing process of the conductive polymer material according to an embodiment of the present invention; and

[0027] Figure 4 This is a flowchart illustrating the manufacturing process of dyes according to an embodiment of the present invention.

[0028] In the attached figures, the following labels are used:

[0029] 1: Fiber;

[0030] 11: Fiber substrate;

[0031] 12: Outer surface;

[0032] 13: Conductive layer;

[0033] 131: Anti-settling agent;

[0034] 132: Adhesive resin;

[0035] 133: Conductive materials;

[0036] S1~S3: Steps. Detailed Implementation

[0037] To illustrate the technical features of this invention in detail, the following embodiments are provided in conjunction with the accompanying drawings. First, it should be noted that throughout this specification, including the embodiments described below and the claims within the scope of the patent application, directional terms are based on the directions shown in the drawings. Second, in the embodiments and drawings described below, the same element reference numerals represent the same or similar elements or their structural features.

[0038] Please see Figure 1 and Figure 2 The fiber 1 of the present invention having a conductive layer mainly comprises a fiber substrate 11 and a conductive layer 13 completely covering the outer surface 12 of the fiber substrate 11, such as... Figure 1 As shown, the conductive layer 13 contains an anti-settling agent 131, an adhesive resin 132, and a conductive material 133.

[0039] The present invention provides a method for preparing a fiber 1 with a conductive layer, which sequentially executes steps S1 to S3. Step S1, as follows: Figure 2 As shown: Water is used as a solvent. An anti-settling agent 131 is added to the water and mixed evenly. Then, an adhesive resin 132 is added to the mixture of water and anti-settling agent 131. Since the adhesive resin 132 is viscous, it needs to be placed in an ultrasonic vibrator. After ultrasonic vibration, the adhesive resin 132, water, and anti-settling agent 131 are mixed evenly. Then, a conductive material 133 is added to the mixture of water, anti-settling agent 131, and adhesive resin 132. Since the conductive material 133 is granular, the mixture with the conductive material 133 is placed in a bead mill. The grinding beads of the bead mill grind the conductive material 133 and evenly disperse it in the mixture. The anti-settling agent 131 makes it easier and more evenly dispersed in the adhesive resin 132, improving the overall conductivity. The mixture is then taken out of the bead mill, thus preparing a liquid phase resin.

[0040] Step S2: Take a fiber substrate 11, which may be, for example, natural fiber, synthetic fiber, woven fabric, non-woven fabric or film. Transport the fiber substrate 11 at a speed of 10-200 m / min. Apply liquid phase resin to the outer surface 12 of the fiber substrate 11 by coating method. Then, through a thickness control program, control the thickness of the liquid phase resin on the outer surface 12 of the fiber substrate 11 to be between 5 μm and 300 μm.

[0041] Step S3: Continue with the high-temperature carbonization or metallization process. After the fiber substrate 11 coated with liquid phase resin undergoes the first high-temperature carbonization or metallization treatment in a reaction chamber at a temperature of 100℃-180℃, the fiber substrate 11 is stretched and then transported to a reaction chamber at a temperature of 100℃-180℃ for a second high-temperature carbonization or metallization treatment. The fiber substrate 11 is stretched again to completely cure and shape the liquid phase resin coated on the outer surface 12 of the fiber substrate 11, so as to obtain a fiber substrate 11 with a conductive layer 13 on the outer surface 12. Finally, the fiber substrate 11 is wound up and stored by a winding machine.

[0042] In step S1 of preparing the liquid-phase resin, in addition to adding the adhesive resin 132 to the mixture of water and anti-settling agent 131, a conductive polymer material may be added to enhance the electrical properties of the liquid-phase resin, such as... Figure 3 As shown.

[0043] Furthermore, in step S1, a dye can also be added simultaneously with the conductive material 133. After mixing and dispersing in a bead mill, the liquid resin will exhibit the color of the dye, giving the conductive layer 13 coated on the fiber substrate 11 color for application in different textile designs, such as... Figure 4 As shown; wherein, the dye is selected from nylon dyes or polyester dyes. This conductive layer 13 with dye can also be matched with the color of the fiber substrate 11, so that the fiber 1 presents different colors.

[0044] Thus, the conductive layer 13 of the fiber 1 with the conductive layer may contain, in addition to the anti-settling agent 131, the adhesive resin 132 and the conductive material 133, a conductive polymer material (not shown) and a dye (not shown).

[0045] The raw materials used in the liquid phase resin of the present invention are all water-based, and the liquid phase resin is coated onto the fiber substrate 11 by coating method, which can avoid the generation of industrial wastewater and eliminate the need to build additional equipment to treat industrial wastewater. The preparation method of the present invention has the advantages of both environmental protection and low cost.

[0046] The following embodiments illustrate the combined application of the anti-settling agent 131, adhesive resin 132, conductive material 133, conductive polymer material and dye of the liquid phase resin of the present invention.

[0047] Example 1

[0048] The liquid-phase resin of Example 1 contains 65-90 wt% water, 1-5 wt% anti-settling agent 131, 1-5 wt% adhesive resin 132 and 5-15 wt% conductive material 133.

[0049] The preferred composition is 75-85 wt% water, 1.5-3.5 wt% sodium carboxymethyl cellulose, 2-4 wt% waterborne rubber and polyacrylic acid resin, and 7-13 wt% multi-walled carbon nanotubes.

[0050] The multi-walled carbon nanotubes have a size of 2-200μm and are black in color. After a high-temperature carbonization process, the conductive layer 13 on the outer surface 12 of the fiber substrate 11 turns black. Therefore, Example 1 is suitable for use with a dark-colored fiber substrate 11. If it is used with a blue or red fiber substrate 11, the fiber 1 will be dark blue or dark red.

[0051] The fiber substrate 11 is made of dark-colored synthetic fiber PET (Polyethylene terephthalate), which is either synthetic fiber yarn or woven fabric, and is coated with the liquid-phase resin of Example 1, with a resistivity of 10. 1 -10 2 Ω / cm, the color fastness to washing according to AATCC 61 test standard reaches level 4-5, and the color fastness to light according to AATCC 16.3 test standard is level 4. Compared with the fiber substrate 11 without the conductive layer 13, the denier number will increase by 10-20%.

[0052] Example 2

[0053] The liquid phase resin of Example 2 contains 88.5-98.9 wt% water, 0.01-2 wt% anti-settling agent 131, 1-10 wt% adhesive resin 132 and 0.005-1.0 wt% conductive material 133. The following Example 2 provides four different formulations.

[0054] The preferred composition is 89.5-97.5 wt% water, 0.03-1.5 wt% sodium naphthalenesulfonic acid formaldehyde condensate, 2-6 wt% waterborne rubber and unsaturated polyester resin, and 0.006-0.04 wt% single-walled carbon nanotubes.

[0055] The preferred composition is 89-95 wt% water, 0.05-1.5 wt% sodium naphthalene sulfonic acid formaldehyde condensate, 2-8 wt% waterborne rubber and unsaturated polyester resin, and 0.008-0.8 wt% single-walled carbon nanotubes.

[0056] The preferred composition is 90-96 wt% water, 0.02-1.2 wt% sodium carboxymethyl cellulose, 2-8 wt% waterborne rubber and unsaturated polyester resin, and 0.01-0.04 wt% single-walled carbon nanotubes.

[0057] The preferred composition is 89-96 wt% water, 0.2-1.2 wt% sodium carboxymethyl cellulose, 2-7 wt% waterborne polyurethane and polyester resin, and 0.009-0.8 wt% single-walled carbon nanotubes.

[0058] The single-walled carbon nanotubes have a size of 2-200μm and are black in color. Depending on the amount used and after high-temperature carbonization, the conductive layer 13 on the outer surface 12 of the fiber substrate 11 will appear black or light gray. Therefore, if the second embodiment is paired with a blue or red fiber substrate 11, the color of the fiber 1 will be dark blue, light blue, dark red or light red.

[0059] Fiber substrate 11 consists of multiple synthetic PET fibers, which are either synthetic fiber yarns or woven fabrics, and are coated with the liquid-phase resin of Example 2, with a resistivity of 10. 2 -10 7 Ω / cm, the color fastness to washing according to AATCC 61 test standard reaches level 4-5, and the color fastness to light according to AATCC 16.3 test standard is level 4. Compared with the fiber substrate 11 without the conductive layer 13, the denier number will increase by 10-20%.

[0060] Example 3

[0061] The liquid-phase resin of Example 3 contains 70-90 wt% water, 0.001-0.5 wt% anti-settling agent 131, 1-10 wt% adhesive resin 132, 5-30 wt% conductive polymer material and 0.005-0.05 wt% conductive material 133.

[0062] The preferred composition is 72-85 wt% water, 0.005-0.3 wt% sodium naphthalene sulfonic acid formaldehyde condensate, 2-7 wt% waterborne polyurethane and polyester resin, 10-25 wt% poly(dioxyethylthiophene): polystyrene sulfonic acid, and 0.009-0.04 wt% single-walled carbon nanotubes.

[0063] In this embodiment, the amount of single-walled carbon nanotubes in the liquid phase resin is relatively small. After a high-temperature carbonization process, the conductive layer 13 on the outer surface 12 of the fiber substrate 11 appears light gray. Therefore, in embodiment three, any color of fiber substrate 11 can be used. If a blue or red fiber substrate 11 is used, the color of the fiber 1 will be light blue or light red.

[0064] Fiber substrate 11 consists of multiple synthetic PET fibers, which are either synthetic fiber yarns or woven fabrics, and are coated with the liquid-phase resin of Example 3, with a resistivity of 10. 4 -10 5 Ω / cm, the color fastness to washing according to AATCC 61 test standard reaches level 4-5, and the color fastness to light according to AATCC 16.3 test standard is level 4. Compared with the fiber substrate 11 without the conductive layer 13, the denier number will increase by 10-15%.

[0065] Example 4

[0066] The liquid-phase resin of Example 4 contains 10-20 wt% water, 0.001-0.5 wt% anti-settling agent 131, 1-10 wt% adhesive resin 132, 70-90 wt% conductive polymer material and 0.005-0.05 wt% conductive material 133.

[0067] The preferred composition is 12-18 wt% water, 0.005-0.4 wt% sodium naphthalene sulfonic acid formaldehyde condensate, 2-8 wt% waterborne polyurethane and polyester resin, 75-88 wt% poly(dioxyethylthiophene): polystyrene sulfonic acid, and 0.008-0.03 wt% single-walled carbon nanotubes.

[0068] In this embodiment, the amount of single-walled carbon nanotubes in the liquid phase resin is relatively small. After a high-temperature carbonization process, the conductive layer 13 on the outer surface 12 of the fiber substrate 11 appears light gray. Therefore, in embodiment four, any color of fiber substrate 11 can be used. If a blue or red fiber substrate 11 is used, the color of the fiber 1 will be light blue or light red.

[0069] Fiber substrate 11 consists of multiple synthetic fibers, PET or PA6 (Polyamide 6), which are either synthetic fiber yarns or woven fabrics, and are coated with the liquid-phase resin of Example 4, with a resistivity of 10 Ω. 1 -10 3 Ω / cm, the color fastness to washing according to AATCC 61 test standard reaches level 4-5, and the color fastness to light according to AATCC 16.3 test standard is level 4. Compared with the fiber substrate 11 without the conductive layer 13, the denier number will increase by 10-20%.

[0070] Example 5

[0071] The liquid-phase resin of Example 5 contains 10-40 wt% water, 0.001-0.5 wt% anti-settling agent 131, 1-10 wt% adhesive resin 132, 5-20 wt% conductive polymer material, 0.001-0.05 wt% conductive material 133, and 40-70 wt% dye.

[0072] The preferred composition is 15-35 wt% water, 0.005-0.35 wt% sodium naphthalene sulfonic acid formaldehyde condensate, 2-8 wt% waterborne polyurethane and polyester resin, 8-18 wt% poly(dioxyethylthiophene): polystyrene sulfonic acid, 0.001-0.03 wt% single-walled carbon nanotubes, and 45-65 wt% titanium dioxide (TiO2).

[0073] In this embodiment, the amount of single-walled carbon nanotubes in the liquid phase resin is relatively small, and titanium dioxide is used as a dye. After a high-temperature carbonization process, the conductive layer 13 on the outer surface 12 of the fiber substrate 11 will appear white. Example 5 is suitable for use with a white fiber substrate 11.

[0074] Fiber substrate 11 is made of white synthetic PET fiber and coated with the liquid phase resin of Example 5, with a resistivity of 10. 6 -10 7 Ω / cm, the color fastness to washing according to AATCC 61 test standard reaches level 4-5, and the color fastness to light according to AATCC 16.3 test standard is level 3. Compared with the fiber substrate 11 without the conductive layer 13, the denier number will increase by 25-40%.

[0075] Example 6

[0076] The liquid-phase resin of Example 6 contains 0.1-10 wt% water, 15-40 wt% anti-settling agent 131, 3-15 wt% adhesive resin 132, and 20-80 wt% conductive material 133. The conductive material 133 of Example 6 is selected from metal particles with a particle size of 0.5-20 μm, such as gold, silver, copper, nickel, tin, cobalt, aluminum, zinc, and tungsten. The following Example 6 provides three different formulations.

[0077] The preferred composition is 1.5-8.5 wt% water, 16-36 wt% γ-butyrolactone, isophorone, n-butyl acetate and ethyl acetate, 4-10 wt% waterborne polyurethane and polyester resin or polyamide resin and 50-80 wt% metal particles, which consist of 10-20 wt% silver and 50-60 wt% copper.

[0078] The preferred composition is 2-8 wt% water, 15-35 wt% n-butyl acetate and ethyl acetate, 4-10 wt% waterborne polyurethane and polyester resin or polyamide resin, and 55-75 wt% silver.

[0079] The preferred composition is 2-8 wt% water, 15-35 wt% n-butyl acetate and ethyl acetate, 4-10 wt% waterborne polyurethane and polyester resin or polyamide resin, and 55-75 wt% copper.

[0080] The metal particles have their original metallic color. After the metallization process, the conductive layer 13 on the outer surface 12 of the fiber substrate 11 presents the metallic color of the selected metal particles. Therefore, in Embodiment Six, if any color fiber substrate 11 is used, the fiber 1 will present the metallic color of the selected metal particles.

[0081] Fiber substrate 11 consists of multiple synthetic fibers, either PET or PA6, which are either synthetic fiber yarns or woven fabrics, and each is coated with the liquid-phase resin of Example 6, with a resistivity of 10 ohms. -4 -10 -1 Ω / cm, the color fastness to washing according to AATCC 61 test standard reaches level 4-5, and the color fastness to light according to AATCC 16.3 test standard is level 4. Compared with the fiber substrate 11 without the conductive layer 13, the denier number will increase by 110-120%.

[0082] As can be seen from the above description, compared with the prior art, the present invention has the following advantages:

[0083] The present invention relates to a fiber with a conductive layer and a method for preparing the same. Aqueous raw materials are used when preparing the liquid phase resin, and the liquid phase resin is coated onto the fiber substrate by a coating method. No electrolyte or other chemical liquids that would generate industrial wastewater are used in the preparation process. Therefore, the present invention does not generate industrial wastewater, and there is no need to set up equipment for treating industrial wastewater in the process equipment, which can reduce manufacturing costs and provide fibers with a conductive layer in a more environmentally friendly manner.

[0084] The present invention relates to a fiber with a conductive layer and a method for preparing the same, which can be applied to fields such as EMI protection, military and police supplies, electronic devices, smart clothing, aerospace technology, medical peripherals, and server computing. The conductive layer of the present invention completely covers the outer surface of the fiber substrate, and the coverage of the conductive layer will not be reduced after subsequent cutting or weaving processes, thus providing good conductivity.

[0085] The above description is merely illustrative of the present invention through the above embodiments and should not be construed as limiting the scope of patent protection of the present invention. Any simple variations or equivalent implementations made based on the contents of the present invention and patent specification should be covered by the patent scope of the present invention.

Claims

1. A method for preparing a fiber with a conductive layer, characterized in that, The steps include: A) Mix water and an anti-settling agent evenly, then add an adhesive resin, and after ultrasonic vibration, add a conductive material. After mixing and dispersing in a bead mill, a liquid phase resin is prepared. B) Take a fiber substrate and coat the liquid phase resin onto the outer surface of the fiber substrate using a coating method; as well as C) Perform a high-temperature carbonization or metallization process to cure and solidify the liquid resin coated on the outer surface of the fiber substrate.

2. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, In step A), the water and the anti-settling agent are mixed evenly, and then a conductive polymer material and the adhesive resin are added. After ultrasonic vibration, the conductive material is added, and the mixture is mixed and dispersed in a bead mill to prepare the liquid phase resin.

3. The method for preparing fibers with a conductive layer as described in claim 2, characterized in that, The conductive polymer material is poly(dioxyethylthiophene): polystyrene sulfonic acid.

4. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, In step A), the water and the anti-settling agent are mixed evenly, then the adhesive resin is added. After ultrasonic vibration, the conductive material and a dye are added, and the mixture is further mixed and dispersed in a bead mill to prepare the liquid phase resin.

5. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, The fiber substrate is a natural fiber, synthetic fiber, woven fabric, non-woven fabric, or film, and the fiber substrate may be dyed or undyed.

6. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, The anti-settling agent is at least one of the following groups selected from sodium carboxymethyl cellulose, ammonium polycarboxylate, polysulfonate, polyether salt, hydrogenated nitrile rubber, sodium naphthalene sulfonate formaldehyde condensate, γ-butyrolactone, isophorone, n-butyl acetate and ethyl acetate.

7. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, The adhesive resin is at least one selected from the group consisting of waterborne polyurethane, thermoplastic polyurethane, polyester resin, ethyl polyacrylate, polyacrylic resin, butyl polyacrylate, unsaturated polyester resin, polyamide resin, polyvinyl acetate, waterborne rubber and waterborne epoxy resin.

8. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, The conductive material is a single-walled carbon nanotube, a multi-walled carbon nanotube, or a metal particle.

9. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, Step B) also includes a thickness control procedure to control the thickness of the liquid phase resin coating on the fiber substrate to be between 5 μm and 300 μm.

10. The method for preparing fibers with a conductive layer as described in claim 1, characterized in that, Compared to the fiber substrate without the liquid phase resin coating, the fiber substrate coated with the liquid phase resin has a denier number that increases by 5-300%.

11. The method for preparing fibers with a conductive layer according to claim 1, characterized in that, The high-temperature carbonization or metallization process in step C) involves first performing a high-temperature carbonization or metallization treatment in a reaction chamber at a temperature of 100℃-180℃, then stretching the fiber substrate, followed by a second high-temperature carbonization or metallization treatment in a reaction chamber at a temperature of 100℃-180℃, and then stretching the fiber substrate again to cure and set the liquid resin coated on the surface of the fiber substrate.

12. A fiber with a conductive layer prepared by the preparation method according to claim 1, characterized in that, It includes: A fiber substrate having an outer surface; and A conductive layer comprising an anti-settling agent, an adhesive resin, and a conductive material, wherein the conductive layer is coated on the outer surface of the fiber substrate, and the conductive material is a single-walled carbon nanotube, a multi-walled carbon nanotube, or metal particles.

13. The fiber with a conductive layer as described in claim 12, characterized in that, The thickness of the conductive layer is 5μm-300μm.

14. The fiber with a conductive layer as described in claim 12, characterized in that, The resistance of the conductive layer is 10. -4 -10 8 Ω / cm.

15. The fiber with a conductive layer as described in claim 12, characterized in that, Compared to the fiber substrate without the conductive layer, the fiber substrate with the conductive layer has a denier number that increases by 5-300%.

16. The fiber with a conductive layer as described in claim 12, characterized in that, The conductive layer also contains a conductive polymer material.

17. The fiber with a conductive layer as described in claim 12, characterized in that, The conductive layer also contains a dye.

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