Ecological chinlon functional fabric with three-proofing performance and production process of ecological chinlon functional fabric

Abstract

The invention discloses an ecological chinlon functional fabric with three-proofing performance and a production process thereof, and belongs to the technical field of textile fabrics, the ecological chinlon functional fabric is formed by interweaving warp yarns and weft yarns, and the warp yarns and the weft yarns are ecological chinlon fiber yarns which are sequentially subjected to mechanical high-elastic treatment, low-temperature plasma modification treatment and gamma-ray irradiation treatment; the ecological polyamide fiber yarn is prepared from the following raw materials in parts by weight: 58 to 65 parts of polyamide 6, 15 to 20 parts of bio-based polyamide 56, 3 to 5 parts of maleic anhydride grafted polypropylene, 3 to 5 parts of mulberry pectin, 1 to 2 parts of lignin-guar gum mixture, 1 to 3 parts of semi-carbonized fiber and 1 to 3 parts of nano calcium carbonate. The process route of mechanical high-elastic treatment, low-temperature plasma modification and gamma ray irradiation locking is adopted, the three functions of water resistance, oil resistance and fouling resistance are endowed to a fiber body, and a traditional chemical additive after-finishing procedure is not needed. The prepared yarn has excellent three-proofing performance, the three-proofing grade is only reduced by 1-2 grades after five times of standard washing, and the protection effect is lasting.

Description

Technical Field

[0001] This invention relates to the field of textile fabric technology, specifically to an eco-friendly nylon functional fabric with three-proof properties and its production process. Background Technology

[0002] Nylon fiber possesses excellent properties such as high strength, good elasticity, and abrasion resistance, and is widely used in the textile industry. As consumers increasingly demand higher functionality from textiles, nylon textiles are developing towards properties that are waterproof, oil-proof, and stain-proof (referred to as "three-proof").

[0003] The current mainstream "three-proof" modification technology for nylon fibers involves processes such as padding, spraying, and coating to allow finishing agents to adhere to the fabric surface, forming a hydrophobic and oleophobic film. However, because the additives only exist on the fabric surface, the three-proof effect decreases by 2-3 levels after five standard washes, resulting in poor performance retention.

[0004] Based on this, the present invention designs an eco-friendly nylon functional fabric with three-proof properties and its production process to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an eco-friendly nylon functional fabric with three-proof properties and its production process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An eco-friendly nylon functional fabric with three-proof properties is made of interwoven warp and weft yarns, wherein the warp and weft yarns are eco-friendly nylon fiber yarns that have been successively treated with mechanical high elasticity, low temperature plasma modification and γ-ray irradiation. The eco-friendly nylon fiber yarn comprises the following raw materials in parts by weight: 58-65 parts nylon 6, 15-20 parts bio-based nylon 56, 3-5 parts maleic anhydride grafted polypropylene, 3-5 parts mulberry bark pectin, 1-2 parts lignin-guar gum mixture, 1-3 parts semi-carbonized fiber, and 1-3 parts nano calcium carbonate.

[0007] Furthermore, the preparation method of the eco-friendly nylon fiber yarn is as follows: mulberry bark pectin, lignin-guar gum mixture, semi-carbonized fiber and nano-calcium carbonate are added to a high-speed mixer, the speed is set to 1500~2000 r / min, and the mixture is mixed for 10~15 min to obtain an auxiliary agent mixture; then, dried nylon 6, bio-based nylon 56, maleic anhydride grafted polypropylene, and the auxiliary agent mixture are added to a twin-screw extruder according to the ratio, and after extrusion, a uniform spinning melt is obtained; finally, the eco-friendly nylon fiber yarn is obtained by spinning and forming.

[0008] Furthermore, the temperatures of each section of the extruder are set as follows: feeding section 220~225℃, compression section 230~235℃, melting section 240~245℃, homogenization section 235~240℃, and die head 230~235℃; the screw speed is 300~350r / min.

[0009] Furthermore, the mechanical high-elasticity treatment steps are as follows: the yarn is placed in an environment with a temperature of 20~27℃ and a relative humidity of 60~70% for at least 12 hours, and then the yarn is introduced into the elasticity treatment machine. First, pre-stretching is performed: the stretching rate is set to 42~48mm / min, and the yarn is stretched to 120~125% of its original length, and the tension is maintained for 3~6 minutes; then cyclic stretching is performed: the temperature is 80~90℃, the stretching ratio is 110~120%, the relaxation ratio is 90~95%, and the number of cycles is 20~30 times.

[0010] Furthermore, after the cycle ends, the yarn is kept at 40~50℃ for at least 5 minutes and then cooled to room temperature.

[0011] Furthermore, the low-temperature plasma modification treatment steps are as follows: a plasma treatment instrument is used, the discharge gas of the plasma generator is an argon / oxygen mixture, and the temperature of the discharge chamber is controlled at 25~40℃; the eco-friendly nylon yarn is evenly wound on the unwinding roller to ensure that the yarn does not overlap, and the plasma treatment parameters are: discharge power: 100~150W, treatment time: 3~5min, gas flow rate: 20~30mL / min, yarn speed: 1~2m / min.

[0012] Furthermore, after low-temperature plasma modification treatment, the yarn is left at room temperature for at least 5 hours.

[0013] Furthermore, the gamma-ray irradiation treatment steps are as follows: place the yarn in a vacuum chamber, evacuate to -0.09~-0.05MPa, irradiate the yarn with gamma rays, absorb the dose of 15~20kGy, the dose rate is 5~8kGy / h, and pause for 6~10 minutes after every 5kGy irradiation.

[0014] Furthermore, the irradiated yarn is placed in a ventilated environment for at least 10 hours.

[0015] To better achieve the objectives of this invention, this invention also provides a method for preparing an eco-friendly nylon functional fabric with three-proof properties, comprising the following steps: I. Preparation of eco-friendly nylon fiber yarn Mulberry bark pectin, lignin-guar gum mixture, semi-carbonized fiber, and nano-calcium carbonate are added to a high-speed mixer at a speed of 1500-2000 r / min and mixed for 10-15 min to obtain an additive mixture. Then, dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and the additive mixture are added to a twin-screw extruder according to the specified ratio. After extrusion, a uniform spinning melt is obtained. Finally, the yarn is spun into eco-friendly nylon fiber yarn. II. Mechanical high-elasticity treatment of yarn The yarn is introduced into the elastic treatment machine and pre-stretched first: set the stretching rate to 42~48mm / min, stretch to 120~125% of the original length, and maintain tension for 3~6min; then perform cyclic stretching: temperature 80~90℃, stretching ratio 110~120%, relaxation ratio 90~95%, and 20~30 cycles. III. Low-temperature plasma modification treatment of yarn The temperature of the discharge chamber of the plasma treatment instrument is controlled at 25~40℃; the eco-friendly nylon yarn is evenly wound on the unwinding roller to ensure that the yarn does not overlap. The plasma treatment parameters are: discharge power: 100~150W, treatment time: 3~5min, gas flow rate: 20~30mL / min, yarn speed: 1~2m / min. IV. Gamma-ray irradiation treatment of yarn The yarn is placed in a vacuum chamber and evacuated to -0.09 to -0.05 MPa. The yarn is then irradiated with gamma rays at an absorbed dose of 15 to 20 kGy and a dose rate of 5 to 8 kGy / h. The irradiation is paused for 6 to 10 minutes after every 5 kGy irradiation. 5. Use yarn to weave eco-friendly nylon functional fabric with three-proof properties.

[0016] Compared to existing technologies, the advantages of this invention are as follows: This invention employs a process route of "mechanical high-elasticity treatment → low-temperature plasma modification → gamma-ray irradiation locking," imparting waterproof, oil-proof, and stain-resistant properties to the fiber's structure without the need for traditional chemical finishing processes. The resulting yarn possesses excellent three-proof (waterproof, oil-proof, and stain-resistant) properties; after five standard washes, the three-proof rating only decreases by 1-2 levels, providing long-lasting protection. It can be widely used in sportswear, outdoor workwear, and other fields. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a flowchart of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Example 1: A method for preparing an eco-friendly nylon functional fabric with three-proof properties, comprising the following steps: I. Preparation of eco-friendly nylon fiber yarn Weigh the following raw materials in parts by weight: 58 parts nylon 6, 20 parts bio-based nylon 56, 3 parts maleic anhydride-grafted polypropylene, 5 parts mulberry bark pectin, 1 part lignin-guar gum mixture (lignin:guar gum = 2:1, mass ratio), 3 parts semi-carbonized fiber, and 1 part nano-calcium carbonate; add mulberry bark pectin, lignin-guar gum mixture, semi-carbonized fiber, and nano-calcium carbonate to a high-speed mixer, set the speed to 2000 r / min, and mix for 10 min to obtain the additive mixture. The dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and additive mixture were then added to a twin-screw extruder according to the specified ratio. The temperatures of each section were set as follows: feed section 220~225℃, compression section 230~235℃, melting section 240~245℃, homogenization section 235~240℃, and die head 230~235℃; the screw speed was 350 r / min to obtain a uniform spinning melt; finally, the yarn was spun into eco-friendly nylon fiber yarn. II. Mechanical high-elasticity treatment of yarn The yarn was first placed in an environment with a temperature of 20℃ and a relative humidity of 70% for 12 hours. Then the yarn was introduced into the elastic treatment machine and pre-stretched: the stretching rate was set to 42mm / min, and the yarn was stretched to 125% of its original length and held at tension for 3 minutes. Then cyclic stretching was performed: the temperature was 90℃, the stretching ratio was 110%, the relaxation ratio was 95%, and the number of cycles was 20. After the cycle was completed, the yarn was kept at 50℃ for 5 minutes and then cooled to room temperature. III. Low-temperature plasma modification treatment of yarn A plasma treatment instrument was used, with the discharge gas of the plasma generator being an argon / oxygen mixture (argon to oxygen volume ratio 4:1), and the temperature of the discharge chamber was controlled at 25℃. Eco-friendly nylon yarn was evenly wound onto the unwinding roller, ensuring that the yarn did not overlap. The plasma treatment parameters were: discharge power: 150W, treatment time: 3min, gas flow rate: 30mL / min, yarn speed: 1m / min. After the treatment, the yarn was left at room temperature for 5 hours. IV. Gamma-ray irradiation treatment of yarn The yarn was placed in a vacuum chamber and evacuated to -0.09 MPa. The yarn was then irradiated with gamma rays at an absorbed dose of 20 kGy and a dose rate of 5 kGy / h, with a pause of 10 min after every 5 kGy irradiation. The irradiated yarn was then placed in a ventilated environment for at least 10 h.

[0021] 5. Use yarn to weave eco-friendly nylon functional fabric with three-proof properties.

[0022] The fabric has a water contact angle of 139°, an oil repellency rating of 5 (AATCC 118-2020), and a stain resistance rating of 5 (GB / T30159.1-2013).

[0023] Durability: After 5 standard washes (GB / T 8629-2017), the contact angle with water is 130°, the oil repellency rating is 4, and the stain resistance rating is 3.

[0024] Example 2: A method for preparing an eco-friendly nylon functional fabric with three-proof properties, comprising the following steps: I. Preparation of eco-friendly nylon fiber yarn Weigh the following raw materials in parts by weight: 65 parts nylon 6, 15 parts bio-based nylon 56, 5 parts maleic anhydride-grafted polypropylene, 3 parts mulberry bark pectin, 2 parts lignin-guar gum mixture (lignin:guar gum = 2:1, mass ratio), 1 part semi-carbonized fiber, and 3 parts nano-calcium carbonate; add mulberry bark pectin, lignin-guar gum mixture, semi-carbonized fiber, and nano-calcium carbonate to a high-speed mixer, set the speed to 1500 r / min, and mix for 15 min to obtain the additive mixture. The dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and additive mixture were then added to a twin-screw extruder according to the specified ratio. The temperatures of each section were set as follows: feed section 220~225℃, compression section 230~235℃, melting section 240~245℃, homogenization section 235~240℃, and die head 230~235℃; the screw speed was 300 r / min to obtain a uniform spinning melt; finally, the yarn was spun into eco-friendly nylon fiber yarn. II. Mechanical high-elasticity treatment of yarn The yarn was pre-placed in an environment with a temperature of 27℃ and a relative humidity of 60% for 15 hours. Then, the yarn was introduced into an elastic treatment machine for pre-stretching: the stretching rate was set to 48mm / min, and the yarn was stretched to 120% of its original length and held at tension for 6 minutes. After that, cyclic stretching was performed: the temperature was 80℃, the stretching ratio was 120%, the relaxation ratio was 90%, and the number of cycles was 30. After the cycle was completed, the yarn was kept at 40℃ for 8 minutes and then cooled to room temperature. III. Low-temperature plasma modification treatment of yarn A plasma treatment instrument was used, with the discharge gas of the plasma generator being an argon / oxygen mixture (argon to oxygen volume ratio 4:1), and the temperature of the discharge chamber was controlled at 40℃. Eco-friendly nylon yarn was evenly wound onto the unwinding roller, ensuring that the yarn did not overlap. The plasma treatment parameters were: discharge power: 100W, treatment time: 5min, gas flow rate: 20mL / min, yarn speed: 2m / min. After the treatment, the yarn was left at room temperature for 8 hours. IV. Gamma-ray irradiation treatment of yarn The yarn was placed in a vacuum chamber and evacuated to -0.05 MPa. The yarn was then irradiated with gamma rays at an absorbed dose of 15 kGy and a dose rate of 8 kGy / h, with a pause of 6 minutes after every 5 kGy irradiation. The irradiated yarn was then placed in a ventilated environment for 15 hours.

[0025] 5. Use yarn to weave eco-friendly nylon functional fabric with three-proof properties.

[0026] The fabric has a water contact angle of 128°, an oil repellency rating of 5 (AATCC 118-2020), and a stain resistance rating of 5 (GB / T30159.1-2013).

[0027] Durability: After 5 standard washes (GB / T 8629-2017), the contact angle with water is 121°, the oil repellency rating is 3, and the stain resistance rating is 4.

[0028] Example 3: A method for preparing an eco-friendly nylon functional fabric with three-proof properties, comprising the following steps: I. Preparation of eco-friendly nylon fiber yarn Weigh the following raw materials in parts by weight: 61 parts nylon 6, 18 parts bio-based nylon 56, 4 parts maleic anhydride-grafted polypropylene, 4 parts mulberry bark pectin, 1.5 parts lignin-guar gum mixture (lignin:guar gum = 2:1, mass ratio), 2 parts semi-carbonized fiber, and 2 parts nano-calcium carbonate; add mulberry bark pectin, lignin-guar gum mixture, semi-carbonized fiber, and nano-calcium carbonate to a high-speed mixer, set the speed to 1800 r / min, and mix for 12 min to obtain the additive mixture. The mixture was then added to a twin-screw extruder according to the following ratio: dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and additives. The temperatures of each section were set as follows: feed section 220~225℃, compression section 230~235℃, melting section 240~245℃, homogenization section 235~240℃, and die head 230~235℃; the screw speed was 320 r / min to obtain a uniform spinning melt; finally, eco-friendly nylon fiber yarn was obtained by spinning. II. Mechanical high-elasticity treatment of yarn The yarn was pre-placed in an environment with a temperature of 25℃ and a relative humidity of 68% for 12 hours. Then, the yarn was introduced into an elastic treatment machine for pre-stretching: the stretching rate was set to 45mm / min, and the yarn was stretched to 123% of its original length and held at tension for 5 minutes. After that, cyclic stretching was performed: the temperature was 85℃, the stretching ratio was 115%, the relaxation ratio was 92%, and the number of cycles was 25. After the cycle was completed, the yarn was kept at 45℃ for 5 minutes and then cooled to room temperature. III. Low-temperature plasma modification treatment of yarn A plasma treatment instrument was used, with the discharge gas of the plasma generator being an argon / oxygen mixture (argon to oxygen volume ratio 4:1), and the temperature of the discharge chamber was controlled at 30℃. Eco-friendly nylon yarn was evenly wound onto the unwinding roller, ensuring that the yarn did not overlap. The plasma treatment parameters were: discharge power: 130W, treatment time: 4min, gas flow rate: 25mL / min, yarn speed: 1.6m / min. After the treatment, the yarn was left at room temperature for 5 hours. IV. Gamma-ray irradiation treatment of yarn The yarn was placed in a vacuum chamber and evacuated to -0.06 MPa. The yarn was then irradiated with gamma rays at an absorbed dose of 18 kGy and a dose rate of 6 kGy / h, with a pause of 8 minutes after every 5 kGy irradiation. The irradiated yarn was then placed in a ventilated environment for 10 hours.

[0029] 5. Use yarn to weave eco-friendly nylon functional fabric with three-proof properties.

[0030] The fabric has a water contact angle of 143°, an oil repellency rating of 5 (AATCC 118-2020), and a stain resistance rating of 5 (GB / T30159.1-2013).

[0031] Durability: After 5 standard washes (GB / T 8629-2017), the contact angle with water is 133°, the oil repellency rating is 4, and the stain resistance rating is 4.

[0032] Comparative Example 1: Unlike Example 3, the yarn was first subjected to low-temperature plasma modification treatment, then mechanical high-elasticity treatment, and finally gamma-ray irradiation treatment.

[0033] The fabric has a water contact angle of 136°, an oil repellency rating of 4 (AATCC 118-2020), and a stain resistance rating of 3 (GB / T30159.1-2013).

[0034] Durability: After 5 standard washes (GB / T 8629-2017), the contact angle with water is 118°, the oil repellency rating is 2, and the stain resistance rating is 2.

[0035] Comparative Example 2: Unlike Example 3, step one is as follows: Weigh the following raw materials in parts by weight: 61 parts nylon 6, 18 parts bio-based nylon 56, 4 parts maleic anhydride-grafted polypropylene, 6 parts mulberry bark pectin, and 3.5 parts nano-calcium carbonate; add mulberry bark pectin and nano-calcium carbonate to a high-speed mixer, set the speed to 1800 r / min, and mix for 12 min to obtain an additive mixture; then add the dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and additive mixture to a twin-screw extruder according to the ratio, and set the temperature of each section as follows: feed section 220~225℃, compression section 230~235℃, melting section 240~245℃, homogenization section 235~240℃, and die head 230~235℃; the screw speed is 320 r / min to obtain a uniform spinning melt; finally, spin and form to obtain eco-friendly nylon fiber yarn.

[0036] The fabric has a water contact angle of 129°, an oil repellency rating of 3 (AATCC 118-2020), and a stain resistance rating of 3 (GB / T30159.1-2013).

[0037] Durability: After 5 standard washes (GB / T 8629-2017), the contact angle with water is 116°, the oil repellency rating is 2, and the stain resistance rating is 2.

[0038] This invention employs a process route of "mechanical high-elasticity treatment → low-temperature plasma modification → gamma-ray irradiation locking" to impart waterproof, oil-proof, and stain-proof properties to the fiber's structure, eliminating the need for traditional chemical finishing processes. The resulting yarn exhibits excellent three-proof (waterproof, oil-proof, and stain-proof) performance; after five standard washes, the three-proof rating only decreases by 1-2 levels, providing long-lasting protection. It can be widely used in sportswear, outdoor workwear, and other fields.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An eco-friendly nylon functional fabric with three-proof properties, characterized in that, It is made of interwoven warp and weft yarns, both of which are eco-friendly nylon fiber yarns that have undergone mechanical high-elasticity treatment, low-temperature plasma modification treatment, and γ-ray irradiation treatment in sequence. The eco-friendly nylon fiber yarn comprises the following raw materials in parts by weight: 58-65 parts nylon 6, 15-20 parts bio-based nylon 56, 3-5 parts maleic anhydride grafted polypropylene, 3-5 parts mulberry bark pectin, 1-2 parts lignin-guar gum mixture, 1-3 parts semi-carbonized fiber, and 1-3 parts nano calcium carbonate.

2. The eco-friendly nylon functional fabric with three-proof properties according to claim 1, characterized in that, The method for preparing the eco-friendly nylon fiber yarn is as follows: mulberry bark pectin, a mixture of lignin and guar gum, semi-carbonized fiber, and nano-calcium carbonate are added to a high-speed mixer, the speed is set to 1500~2000 r / min, and the mixture is mixed for 10~15 min to obtain an auxiliary agent mixture; then, dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and the auxiliary agent mixture are added to a twin-screw extruder according to the ratio, and a uniform spinning melt is obtained after extrusion; finally, the eco-friendly nylon fiber yarn is obtained by spinning and forming.

3. The eco-friendly nylon functional fabric with three-proof properties according to claim 2, characterized in that, The extruder temperature settings for each section are as follows: feeding section 220~225℃, compression section 230~235℃, melting section 240~245℃, homogenization section 235~240℃, and die head 230~235℃; the screw speed is 300~350r / min.

4. The eco-friendly nylon functional fabric with three-proof properties according to claim 1, characterized in that, The mechanical high-elasticity treatment steps are as follows: Place the yarn in an environment with a temperature of 20~27℃ and a relative humidity of 60~70% for at least 12 hours. Then, introduce the yarn into the elasticity treatment machine and perform pre-stretching: set the stretching rate to 42~48mm / min, stretch to 120~125% of the original length, and maintain the tension for 3~6 minutes. Then, perform cyclic stretching: temperature 80~90℃, stretching ratio 110~120%, relaxation ratio 90~95%, and 20~30 cycles.

5. The eco-friendly nylon functional fabric with three-proof properties according to claim 4, characterized in that, After the cycle ends, keep the yarn at 40~50℃ for at least 5 minutes and then cool it to room temperature.

6. The eco-friendly nylon functional fabric with three-proof properties according to claim 1, characterized in that, The low-temperature plasma modification process is as follows: a plasma treatment instrument is used, the discharge gas of the plasma generator is an argon / oxygen mixture, and the temperature of the discharge chamber is controlled at 25~40℃; the eco-friendly nylon yarn is evenly wound on the unwinding roller to ensure that the yarn does not overlap, and the plasma treatment parameters are: discharge power: 100~150W, treatment time: 3~5min, gas flow rate: 20~30mL / min, yarn speed: 1~2m / min.

7. The eco-friendly nylon functional fabric with three-proof properties according to claim 6, characterized in that, After low-temperature plasma modification treatment, the yarn is left at room temperature for at least 5 hours.

8. The eco-friendly nylon functional fabric with three-proof properties according to claim 7, characterized in that, The gamma-ray irradiation treatment steps are as follows: place the yarn in a vacuum chamber, evacuate to -0.09~-0.05MPa, irradiate the yarn with gamma rays, absorb the dose of 15~20kGy, the dose rate is 5~8kGy / h, and pause for 6~10min after every 5kGy irradiation.

9. The eco-friendly nylon functional fabric with three-proof properties according to claim 8, characterized in that, The irradiated yarn should be placed in a ventilated environment for at least 10 hours.

10. A method for preparing an eco-friendly nylon functional fabric with three-proof properties according to any one of claims 1 to 9, characterized in that, Includes the following steps: I. Preparation of eco-friendly nylon fiber yarn Mulberry bark pectin, lignin-guar gum mixture, semi-carbonized fiber, and nano-calcium carbonate are added to a high-speed mixer at a speed of 1500-2000 r / min and mixed for 10-15 min to obtain an additive mixture. Then, dried nylon 6, bio-based nylon 56, maleic anhydride-grafted polypropylene, and the additive mixture are added to a twin-screw extruder according to the specified ratio. After extrusion, a uniform spinning melt is obtained. Finally, the yarn is spun into eco-friendly nylon fiber yarn. II. Mechanical high-elasticity treatment of yarn The yarn is introduced into the elastic treatment machine and pre-stretched first: set the stretching rate to 42~48mm / min, stretch to 120~125% of the original length, and maintain tension for 3~6min; then perform cyclic stretching: temperature 80~90℃, stretching ratio 110~120%, relaxation ratio 90~95%, and 20~30 cycles. III. Low-temperature plasma modification treatment of yarn The temperature of the discharge chamber of the plasma treatment instrument is controlled at 25~40℃; the eco-friendly nylon yarn is evenly wound on the unwinding roller to ensure that the yarn does not overlap. The plasma treatment parameters are: discharge power: 100~150W, treatment time: 3~5min, gas flow rate: 20~30mL / min, yarn speed: 1~2m / min. IV. Gamma-ray irradiation treatment of yarn The yarn is placed in a vacuum chamber and evacuated to -0.09 to -0.05 MPa. The yarn is then irradiated with gamma rays at an absorbed dose of 15 to 20 kGy and a dose rate of 5 to 8 kGy / h. The irradiation is paused for 6 to 10 minutes after every 5 kGy irradiation.

5. Use yarn to weave eco-friendly nylon functional fabric with three-proof properties.

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