A multi-layer composite conductive flat filament, fabric, and manufacturing process

Abstract

This application relates to the technical field of conductive fibers, specifically disclosing a multilayer composite conductive flat filament, fabric, and manufacturing process. A multilayer composite conductive flat filament includes a conductive layer and an intermediate layer. The raw materials of the conductive layer include the following components by weight: 70-90 parts of matrix resin, 1-5 parts of nano-conductive carbon black, 1-5 parts of carbon nanotubes, and 5-10 parts of graphene. In this application, the conductive components of nano-conductive carbon black, carbon nanotubes, and graphene are distributed within the conductive layer, located on the surface of the conductive flat filament, effectively improving the conductivity and mechanical properties of the filament, solving the problem of easy peeling of the conductive layer, and simplifying the manufacturing process while reducing production costs.

Description

Technical Field

[0001] This application relates to the technical field of conductive fibers, and in particular to a multilayer composite conductive flat filament, fabric, and manufacturing process. Background Technology

[0002] Conductive fibers are chemical fibers, metal fibers, carbon fibers, etc., spun from polymers incorporating conductive media. They possess superior static elimination and prevention properties compared to antistatic fibers, and their resistivity remains constant over time and is largely unaffected by humidity. Currently, most commercially available conductive fibers are produced through metal coatings or doping with conductive particles, which suffers from high costs, poor conductivity stability, and susceptibility to environmental influences. Summary of the Invention

[0003] To improve the conductivity of conductive fibers, this application provides a multilayer composite conductive flat yarn, fabric, and manufacturing process.

[0004] Firstly, this application provides a multilayer composite conductive flat wire, which adopts the following technical solution:

[0005] A multilayer composite conductive flat wire includes a conductive layer and an intermediate layer. The raw materials of the conductive layer include the following components in parts by weight: 70-90 parts of matrix resin, 1-5 parts of nano-conductive carbon black, 1-5 parts of carbon nanotubes, and 5-10 parts of graphene.

[0006] By adopting the above technical solution, the conductive components of nano-conductive carbon black, carbon nanotubes, and graphene are distributed in the conductive layer and located on the surface of the conductive flat wire, which effectively improves the conductivity and mechanical properties of the flat wire, solves the problem of easy peeling of the conductive layer, simplifies the production process, and reduces production costs.

[0007] In one specific implementation, the matrix resin includes PET or PBT.

[0008] In one specific implementation, the method for preparing the multilayer composite conductive flat wire includes the following steps:

[0009] First, the matrix resin, nano-conductive carbon black, carbon nanotubes, and graphene are stirred and mixed evenly, then melted, extruded, cooled, and granulated to obtain conductive masterbatch.

[0010] Polyester is selected as the raw material for the intermediate layer. Polyester and conductive masterbatch are added to a multilayer extruder and melt-extruded. The conductive masterbatch forms a conductive layer on the surface, and the polyester forms the intermediate layer to obtain a film. The film is biaxially stretched and then split to obtain a multilayer composite conductive flat filament. Each flat filament is wound separately.

[0011] By adopting the above technical solution, the matrix resin, nano-conductive carbon black, carbon nanotubes and graphene are first stirred, extruded and granulated to obtain conductive masterbatch; then the conductive masterbatch and polyester are compositely extruded, and finally the obtained film is stretched and split to obtain multilayer composite conductive flat filament.

[0012] Secondly, the fabric provided in this application adopts the following technical solution:

[0013] A fabric made of the aforementioned multilayer composite conductive flat filaments.

[0014] By adopting the above technical solution, the fabric made using the multilayer composite conductive flat yarn in this application has good conductivity.

[0015] Thirdly, the fabric production process provided in this application adopts the following technical solution:

[0016] A fabric manufacturing process includes the following steps:

[0017] Pretreatment: The multilayer composite conductive flat wire is immersed in a pretreatment solution, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid are slowly added. After the reaction is complete, the wire is removed, washed, and dried to obtain the pretreated flat wire. The raw materials of the pretreatment solution include the following components in parts by weight: 20-30 parts water, 60-70 parts ethanol, 0.5-1 parts deacetylated chitin fiber membrane fragments, 1-3 parts pyrrole, 0.1-0.5 parts dispersant, and 0.1-0.5 parts stabilizer.

[0018] Weaving: The warp and weft yarns are woven on a loom into strip or grid-shaped base fabric to obtain the fabric. The warp and weft yarns are both pre-treated flat yarns.

[0019] By adopting the above technical solution, the multi-layer composite conductive flat yarn is first immersed in a pretreatment solution for pretreatment to further improve the conductivity of the flat yarn, and then woven to obtain a fabric with better conductivity.

[0020] In one specific implementation, the method for preparing the deacetylated chitosan fiber membrane fragments includes the following steps:

[0021] First, glacial acetic acid and dimethyl sulfoxide are stirred and mixed evenly. Then, Triton X-100 is added and stirred to obtain a mixture. Deacetylated chitin and polyethylene oxide are added to the mixture and stirred evenly to obtain a spinning solution. Electrospinning is performed to obtain a nanofiber membrane. The membrane is then crushed to obtain deacetylated chitin fiber membrane fragments.

[0022] In one specific implementation, the weight ratio of the glacial acetic acid, the dimethyl sulfoxide, the Triton X-100, the deacetylated chitosan, and the polyethylene oxide is 90:(9-11):(0.2-0.4):(2.0-2.2):(0.8-1.0).

[0023] By adopting the above technical solution, the ratio of glacial acetic acid, dimethyl sulfoxide, Triton X-100, deacetylated chitin, and polyethylene oxide is further limited, which can enable better formation of nanofiber membranes.

[0024] In one specific implementation, the dispersant comprises one or more of sodium hexametaphosphate, sodium pyrophosphate, sodium dodecyl sulfonate, and polyvinyl alcohol.

[0025] In one specific implementation, the stabilizer includes one or more of polyethylene glycol, polyacrylic acid, and polyacrylamide.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] In this application, the conductive components of nano-conductive carbon black, carbon nanotubes, and graphene are distributed in the conductive layer and located on the surface of the conductive flat wire, which effectively improves the conductivity and mechanical properties of the flat wire, solves the problem of easy peeling of the conductive layer, simplifies the production process, and reduces the production cost.

[0028] In this application, the matrix resin, nano-conductive carbon black, carbon nanotubes and graphene are first stirred, extruded and granulated to obtain conductive masterbatch; then the conductive masterbatch and polyester are composite extruded, and finally the obtained film is stretched and split to obtain multilayer composite conductive flat wire.

[0029] The process described in this application involves first immersing multi-layer composite conductive flat yarns in a pretreatment solution for pretreatment to further improve the conductivity of the flat yarns, and then weaving them to obtain a fabric with better conductivity. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the embodiments.

[0031] All raw materials used in the embodiments are commercially available. The dispersant includes, but is not limited to, a mixture of one or more of sodium hexametaphosphate, sodium pyrophosphate, sodium dodecyl sulfonate, sodium hexametaphosphate, and polyvinyl alcohol, with sodium dodecyl sulfonate being preferred in this application; the stabilizer includes, but is not limited to, a mixture of one or more of polyethylene glycol, polyacrylic acid, and polyacrylamide, with polyethylene glycol being preferred in this application; the matrix resin includes, but is not limited to, PET or PBT, with PET being preferred in this application.

[0032] Preparation Example 1

[0033] Preparation Example 1 provides a method for preparing deacetylated chitosan fiber membrane fragments, comprising the following steps:

[0034] First, glacial acetic acid and dimethyl sulfoxide are stirred and mixed evenly. Then, Triton X-100 is added and stirred to obtain a mixture. Deacetylated chitin and polyethylene oxide are added to the mixture and stirred evenly to obtain a spinning solution. Electrospinning is performed at 20-25℃ to obtain a nanofiber membrane. The nanofiber membrane is then crushed to obtain deacetylated chitin fiber membrane fragments. The weight ratio of glacial acetic acid, dimethyl sulfoxide, Triton X-100, deacetylated chitin, and polyethylene oxide is 90:9:0.2:2.0:0.8.

[0035] Preparation Example 2

[0036] Preparation Example 2 provides a method for preparing deacetylated chitosan fiber membrane fragments, comprising the following steps:

[0037] First, glacial acetic acid and dimethyl sulfoxide are stirred and mixed evenly. Then, Triton X-100 is added and stirred to obtain a mixture. Deacetylated chitin and polyethylene oxide are added to the mixture and stirred evenly to obtain a spinning solution. Electrospinning is performed at 20-25℃ to obtain a nanofiber membrane. The nanofiber membrane is then crushed to obtain deacetylated chitin fiber membrane fragments. The weight ratio of glacial acetic acid, dimethyl sulfoxide, Triton X-100, deacetylated chitin, and polyethylene oxide is 90:10:0.3:2.1:0.9.

[0038] Preparation Example 3

[0039] Preparation Example 3 provides a method for preparing deacetylated chitosan fiber membrane fragments, comprising the following steps:

[0040] First, glacial acetic acid and dimethyl sulfoxide are stirred and mixed evenly. Then, Triton X-100 is added and stirred to obtain a mixture. Deacetylated chitin and polyethylene oxide are added to the mixture and stirred evenly to obtain a spinning solution. Electrospinning is performed at 20-25℃ to obtain a nanofiber membrane. The nanofiber membrane is then crushed to obtain deacetylated chitin fiber membrane fragments. The weight ratio of glacial acetic acid, dimethyl sulfoxide, Triton X-100, deacetylated chitin, and polyethylene oxide is 90:11:0.4:2.2:1.0. Example

[0041] Example 1 provides a method for preparing a multilayer composite conductive flat wire, comprising the following steps:

[0042] First, 70 kg of matrix resin, 1 kg of nano-conductive carbon black, 1 kg of carbon nanotubes, and 5 kg of graphene are stirred and mixed evenly, melted and extruded, cooled, and granulated to obtain conductive masterbatch; wherein the matrix resin is PET.

[0043] Polyester is selected as the raw material for the intermediate layer. Polyester and conductive masterbatch are added to a multilayer extruder and melt-extruded. The conductive masterbatch forms a conductive layer on the surface, and the polyester forms the intermediate layer, resulting in a multilayer film. The film can be a three-layer or five-layer structure. In this embodiment, it is a three-layer film, consisting of two conductive layers and an intermediate layer located in the middle of the conductive layers. The film is biaxially stretched and then split to obtain a multilayer composite conductive flat filament. Each flat filament is wound separately. The weight ratio of conductive masterbatch to polyester is 35:65. Example

[0044] Example 2 provides a method for preparing a multilayer composite conductive flat wire, comprising the following steps:

[0045] First, 80 kg of matrix resin, 3 kg of nano-conductive carbon black, 3 kg of carbon nanotubes, and 7.5 kg of graphene are stirred and mixed evenly, melt-extruded, cooled, and granulated to obtain conductive masterbatch; wherein the matrix resin is PET.

[0046] Polyester is selected as the raw material for the intermediate layer. Polyester and conductive masterbatch are added to a multilayer extruder and melt-extruded. The conductive masterbatch forms a conductive layer on the surface, and the polyester forms the intermediate layer, resulting in a multilayer film. The film can be a three-layer or five-layer structure. In this embodiment, it is a three-layer film, consisting of two conductive layers and an intermediate layer located in the middle of the conductive layers. The film is biaxially stretched and then split to obtain a multilayer composite conductive flat filament. Each flat filament is wound separately. The weight ratio of conductive masterbatch to polyester is 35:65. Example

[0047] Example 3 provides a method for preparing a multilayer composite conductive flat wire, comprising the following steps:

[0048] First, 90 kg of matrix resin, 5 kg of nano-conductive carbon black, 5 kg of carbon nanotubes, and 10 kg of graphene are stirred and mixed evenly, melted and extruded, cooled, and granulated to obtain conductive masterbatch; wherein the matrix resin is PET.

[0049] Polyester is selected as the raw material for the intermediate layer. Polyester and conductive masterbatch are added to a multilayer extruder and melt-extruded. The conductive masterbatch forms a conductive layer on the surface, and the polyester forms the intermediate layer, resulting in a multilayer film. The film can be a three-layer or five-layer structure. In this embodiment, it is a three-layer film, consisting of two conductive layers and an intermediate layer located in the middle of the conductive layers. The film is biaxially stretched and then split to obtain a multilayer composite conductive flat filament. Each flat filament is wound separately. The weight ratio of conductive masterbatch to polyester is 35:65.

[0050] Application Example 1

[0051] Application Example 1 provides a fabric manufacturing process, including the following steps:

[0052] Pretreatment: 0.5 kg of deacetylated chitosan fiber membrane fragments from Preparation Example 1, 1 kg of pyrrole, 0.1 kg of dispersant, 0.1 kg of stabilizer, and 20 kg of water were added to 60 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 1 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0053] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0054] Application Example 2

[0055] Application Example 2 provides a fabric manufacturing process, including the following steps:

[0056] Pretreatment: 0.75 kg of deacetylated chitin fiber membrane fragments from Preparation Example 1, 2 kg of pyrrole, 0.3 kg of dispersant, 0.3 kg of stabilizer, and 25 kg of water were added to 65 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 1 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0057] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0058] Application Example 3

[0059] Application Example 3 provides a fabric manufacturing process, including the following steps:

[0060] Pretreatment: 1 kg of deacetylated chitosan fiber membrane fragments from Preparation Example 1, 3 kg of pyrrole, 0.5 kg of dispersant, 0.5 kg of stabilizer, and 30 kg of water were added to 70 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 1 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0061] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0062] Application Example 4

[0063] Application Example 4 provides a fabric manufacturing process, including the following steps:

[0064] Pretreatment: 0.75 kg of deacetylated chitosan fiber membrane fragments from Preparation Example 2, 2 kg of pyrrole, 0.3 kg of dispersant, 0.3 kg of stabilizer, and 25 kg of water were added to 65 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 1 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0065] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0066] Application Example 5

[0067] Application Example 5 provides a fabric manufacturing process, including the following steps:

[0068] Pretreatment: 0.75 kg of deacetylated chitin fiber membrane fragments from Preparation Example 3, 2 kg of pyrrole, 0.3 kg of dispersant, 0.3 kg of stabilizer, and 25 kg of water were added to 65 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 1 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0069] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0070] Application Example 6

[0071] Application Example 6 provides a fabric manufacturing process, including the following steps:

[0072] Pretreatment: 0.75 kg of deacetylated chitin fiber membrane fragments from Preparation Example 2, 2 kg of pyrrole, 0.3 kg of dispersant, 0.3 kg of stabilizer, and 25 kg of water were added to 65 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 2 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0073] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0074] Application Example 7

[0075] Application Example 7 provides a fabric manufacturing process, including the following steps:

[0076] Pretreatment: 0.75 kg of deacetylated chitin fiber membrane fragments from Preparation Example 2, 2 kg of pyrrole, 0.3 kg of dispersant, 0.3 kg of stabilizer, and 25 kg of water were added to 65 kg of ethanol and stirred until homogeneous to obtain a pretreatment solution. The multilayer composite conductive flat wire from Example 3 was immersed in the pretreatment solution for 25 min, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid were slowly added. After the reaction was complete, the wire was removed, washed, and dried to obtain the pretreated flat wire. The molar ratio of ferric chloride hexahydrate to pyrrole was 2.25:1; the concentration of 4-methylbenzenesulfonic acid was 0.1 mol / L; the dispersant was sodium dodecyl sulfonate; and the stabilizer was polyethylene glycol.

[0077] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated flat yarns.

[0078] Comparative Application Example 1

[0079] Comparative Application Example 1 provides a fabric manufacturing process, including the following steps:

[0080] Pretreatment: 1 kg of nano-conductive carbon black, 1 kg of carbon nanotubes, 1.5 kg of graphene, 0.1 kg of dispersant, 0.1 kg of stabilizer, and 80 kg of water were mixed evenly to obtain a pretreatment solution. Polyester fibers were immersed in the pretreatment solution for 30 min, and the conductive particles were evenly distributed on the surface of the polyester fibers by ultrasonic vibration. The fibers were then removed, dried, and the pretreated fibers were obtained. The dispersant was sodium dodecyl sulfonate, and the stabilizer was polyethylene glycol.

[0081] Weaving: The warp and weft yarns are woven into a strip-shaped base fabric on a loom to obtain the fabric, wherein both the warp and weft yarns are pre-treated fibers.

[0082] Conductivity: After washing the fabrics in each application example and the comparative application example 100 times, they were dried and the conductivity of the fabrics was measured. The higher the conductivity, the better the conductivity of the fabric.

[0083] Table 1. Performance test results of the fabric

[0084]

[0085] Combining Application Example 1 and Comparative Application Example 1, the fabric in Application Example 1 has better conductivity. It can be seen that the fabric made using the multilayer composite conductive flat yarn of this application has nano-conductive carbon black, carbon nanotubes and graphene conductive components distributed in the conductive layer in the flat yarn, located on the surface of the conductive flat yarn, which effectively improves the conductivity of the flat yarn, so that the fabric still has good conductivity after multiple washes.

[0086] Combining Application Examples 1-3, the fabric in Application Example 2 exhibits the best electrical conductivity. This indicates that the raw material ratio in Application Example 2 is optimal when preparing the pretreatment solution, resulting in the best treatment effect on the flat yarn.

[0087] Combining Application Examples 2, 4, and 5, the fabric in Application Example 4 exhibits the best electrical conductivity. This indicates that in the preparation of deacetylated chitosan fiber membrane fragments, the ratio of glacial acetic acid, dimethyl sulfoxide, Triton X-100, deacetylated chitosan, and polyethylene oxide in Preparation Example 2 is optimal, resulting in the best performance of the deacetylated chitosan fiber membrane fragments.

[0088] Combining Application Examples 4, 6, and 7, the fabric in Application Example 6 exhibits the best conductivity. This demonstrates that when preparing multilayer composite conductive flat yarns, increasing the amount of raw material matrix resin, nano-conductive carbon black, carbon nanotubes, and graphene during melt granulation results in a first-increase and then-decrease trend in the conductivity of the multilayer composite conductive flat yarns.

[0089] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A fabric manufacturing process, characterized in that: Includes the following steps: Pretreatment: The multilayer composite conductive flat wire is immersed in a pretreatment solution, and ferric chloride hexahydrate and 4-methylbenzenesulfonic acid are slowly added. After the reaction is complete, the wire is removed, washed, and dried to obtain the pretreated flat wire. The raw materials of the pretreatment solution include the following components by weight: 20-30 parts water, 60-70 parts ethanol, 0.5-1 parts deacetylated chitin fiber membrane fragments, 1-3 parts pyrrole, 0.1-0.5 parts dispersant, and 0.1-0.5 parts stabilizer. The multilayer composite conductive flat wire includes a conductive layer and an intermediate layer. The raw materials of the conductive layer include the following components by weight: 70-90 parts matrix resin, 1-5 parts nano-conductive carbon black, 1-5 parts carbon nanotubes, and 5-10 parts graphene. Weaving: The warp and weft yarns are woven on a loom into strip or grid-shaped base fabric to obtain the fabric. The warp and weft yarns are both pre-treated flat yarns.

2. The fabric production process according to claim 1, characterized in that: The matrix resin includes PET or PBT.

3. The fabric production process according to claim 1, characterized in that: The preparation method of the multilayer composite conductive flat wire includes the following steps: First, the matrix resin, nano-conductive carbon black, carbon nanotubes, and graphene are stirred and mixed evenly, then melted, extruded, cooled, and granulated to obtain conductive masterbatch. Polyester is selected as the raw material for the intermediate layer. Polyester and conductive masterbatch are added to a multilayer extruder and melt-extruded. The conductive masterbatch forms a conductive layer on the surface, and the polyester forms the intermediate layer to obtain a film. The film is biaxially stretched and then split to obtain a multilayer composite conductive flat filament. Each flat filament is wound separately.

4. The fabric production process according to claim 1, characterized in that: The preparation method of the deacetylated chitosan fiber membrane fragments includes the following steps: First, glacial acetic acid and dimethyl sulfoxide are stirred and mixed evenly. Then, Triton X-100 is added and stirred to obtain a mixture. Deacetylated chitin and polyethylene oxide are added to the mixture and stirred evenly to obtain a spinning solution. Electrospinning is performed to obtain a nanofiber membrane. The membrane is then crushed to obtain deacetylated chitin fiber membrane fragments.

5. The fabric production process according to claim 4, characterized in that: The weight ratio of the glacial acetic acid, the dimethyl sulfoxide, the Triton X-100, the deacetylated chitosan, and the polyethylene oxide is 90:(9-11):(0.2-0.4):(2.0-2.2):(0.8-1.0).

6. The fabric production process according to claim 1, characterized in that: The dispersant includes one or more of sodium hexametaphosphate, sodium pyrophosphate, sodium dodecyl sulfonate, and polyvinyl alcohol.

7. The fabric production process according to claim 1, characterized in that: The stabilizer includes one or more of polyethylene glycol, polyacrylic acid, and polyacrylamide.

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