Three-proofing breathable nylon cloth and processing technology thereof

Abstract

The invention discloses three-proofing breathable nylon cloth and a processing technology thereof, and the three-proofing breathable nylon cloth comprises the following raw material components in parts by weight: 120 parts of polyamide slices; 10-20 parts of a metal organic framework material; and 1-3 parts of a compatilizer. The rich specific surface area and porous structure of the metal organic framework material are utilized, the three-proofing finishing agent can be better attached to the organic framework, the metal organic framework contains a large number of active groups including amino groups and carboxyl groups, and the three-proofing finishing agent, the nylon cloth and the metal organic framework material can be firmly combined through a bonding effect; therefore, the problem that the three-proofing performance is reduced due to the fact that the three-proofing finishing agent is easy to fall off in the subsequent nylon cloth washing process is solved.

Description

Technical Field

[0001] This invention relates to the field of functional textile fabric preparation technology, and in particular to a three-proof breathable nylon fabric and its processing technology. Background Technology

[0002] Nylon fabric is mainly composed of polyamide, and its most prominent advantage is its abrasion resistance. However, it is not waterproof, oil-proof, or stain-resistant. As living standards improve, people's requirements for the functionality of fabrics are also constantly increasing.

[0003] Three-proof fabric refers to fabric that has been treated with three-proof finishing agents to make it waterproof, oil-proof, and stain-proof, effectively protecting clothing from water stains, oil stains, and dirt stains.

[0004] Currently, the most common three-proof treatment processes for three-proof fabrics are immersion or spraying. These processes result in poor three-proof performance, and the three-proof coating on the nylon fabric surface is easy to peel off after washing, making it difficult to achieve the desired effect. Summary of the Invention

[0005] To address the existing problems, this invention provides a three-proof and breathable nylon fabric and its processing technology, which involves melt blending polyamide chips and metal-organic framework materials, extruding and granulating, and spinning to obtain modified nylon fabric.

[0006] To address the issue of waterproofing and heat-resistant finishing agents easily detaching during washing, this invention proposes a metal-organic framework (MOF) material centered on copper ions, prepared using copper nitrate and 2-aminoterephthalic acid. Utilizing the MOF material's abundant specific surface area and porous structure, the waterproofing and heat-resistant finishing agent can adhere better to the organic framework. Furthermore, the MOF contains numerous active amino and carboxyl groups, allowing the waterproofing and heat-resistant finishing agent, nylon fabric, and MOF material to bond firmly together. This solves the problem of the waterproofing and heat-resistant finishing agent easily detaching during subsequent nylon fabric washing, thus preventing a decline in waterproofing and heat-resistant performance. In addition, the combination of the waterproofing and heat-resistant finishing agent, nylon fabric, and MOF material also greatly maintains the original breathability and comfort of the nylon fabric.

[0007] To address the above problems, the technical solution provided by this invention is as follows: A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10-20 parts of metal-organic framework material; Compatibilizer 1-3 parts.

[0008] Furthermore, a method for preparing the three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20-30 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 20-30 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20-40 minutes, transfer to a reaction vessel, heat to 100-120℃ and react for 24-48 hours, remove, cool, wash and dry to obtain the metal-organic framework material.

[0009] Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L to 10 mol / L.

[0010] Furthermore, the amount of 2-aminoterephthalic acid added to N,N-dimethylformamide is 8 mol / L to 10 mol / L.

[0011] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0012] Furthermore, the compatibilizer is one of maleic anhydride-grafted ABS (ABS-g-MAH), maleic anhydride-grafted polypropylene, and butyl acrylate.

[0013] Furthermore, the processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers. A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of Modified Nylon Fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0014] Furthermore, the concentration of the three-proof finishing agent is 60-80 g / L.

[0015] The beneficial effects achieved by this invention are as follows: This invention discloses a method for processing a three-proof and breathable nylon fabric and its processing technology. An organic framework material with copper ions as the metal center is prepared by using copper nitrate and 2-aminoterephthalic acid. The modified nylon fabric is obtained by melt blending polyamide chips and the metal-organic framework material, extruding and granulating, and spinning.

[0016] By utilizing the abundant specific surface area and porous structure of the metal-organic framework, the three-proof finishing agent can better adhere to the organic framework structure. In addition, the organic framework is rich in a large number of amino and carboxyl functional groups, which can also make the three-proof finishing agent, nylon fabric and metal-organic framework more tightly and firmly bonded through bonding. This not only maintains the original breathability and comfort of nylon fabric to a great extent, but also solves the problem that the three-proof finishing agent is easy to fall off during the subsequent washing of nylon fabric, thus leading to a decline in the three-proof performance.

[0017] Under high temperature and ultrasonic conditions, the fiber molecules of nylon fabric vibrate violently, the gaps between polymer molecules increase, and the fiber structure becomes loose. When nylon fabric is impregnated under high temperature and ultrasonic conditions, the nylon fibers are also rich in amide active groups due to the abundance of amino and carboxyl functional groups in the metal-organic framework. The two are tightly bound together through bonding, which allows the metal-organic framework to adhere well to the fiber surface and gaps. After cooling, the nylon fibers shrink, which further increases the cohesion between the metal-organic framework and the nylon fibers. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0019] The main materials or raw materials used in this embodiment are described below. Unless otherwise specified, all other materials are commercially available: Copper nitrate trihydrate, analytical grade, purchased from Sinopharm Group; 2-Aminoterephthalic acid (w98%) was purchased from Shanghai Maclean Company. N,N-Dimethylformamide, analytical grade, purchased from Sinopharm Group; WRSC-35 anti-fouling finishing agent, purchased from Shenzhen Advanced Chemical Co., Ltd. Example

[0020] A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10 parts of metal-organic framework material; 1 part compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 20 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20 min, transfer to a reaction vessel, heat to 100℃ and react for 24 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L.

[0021] Furthermore, the amount of 2-aminoterephthalic acid added to N,N-dimethylformamide is 8 mol / L.

[0022] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0023] Furthermore, the compatibilizer is maleic anhydride-grafted ABS (ABS-g-MAH).

[0024] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers; A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of modified nylon fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric. Example

[0025] A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 15 parts of metal-organic framework material; 2 parts compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 25 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 25 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 30 min, transfer to a reaction vessel, heat to 110℃ and react for 36 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 10 mol / L.

[0026] Furthermore, the amount of 2-aminoterephthalic acid added to N,N-dimethylformamide is 10 mol / L.

[0027] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0028] Furthermore, the compatibilizer is maleic anhydride-grafted polypropylene.

[0029] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers; A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of modified nylon fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric. Example

[0030] A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 20 parts of metal-organic framework material; 3 parts compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 30 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 30 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 40 min, transfer to a reaction vessel, heat to 120℃ and react for 48 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 12 mol / L.

[0031] Furthermore, the amount of 2-aminoterephthalic acid added to N,N-dimethylformamide is 12 mol / L.

[0032] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0033] Furthermore, the compatibilizer is butyl acrylate.

[0034] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers; A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of modified nylon fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0035] Comparative Example 1 (Metal-free Organic Framework Material) A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 1 part compatibilizer; Furthermore, the compatibilizer is maleic anhydride-grafted ABS (ABS-g-MAH).

[0036] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers; A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of modified nylon fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0037] Comparative Example 2 (2-Aminoterephthalic acid was replaced with terephthalic acid) A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10 parts of metal-organic framework material; 1 part compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20 minutes to obtain mixture A; S2. Add terephthalic acid to N,N-dimethylformamide and stir for 20 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20 min, transfer to a reaction vessel, heat to 100℃ and react for 24 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L.

[0038] Furthermore, the amount of terephthalic acid added to N,N-dimethylformamide is 8 mol / L.

[0039] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0040] Furthermore, the compatibilizer is maleic anhydride-grafted ABS (ABS-g-MAH).

[0041] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers. A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of Modified Nylon Fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0042] Comparative Example 3 (the compatibilizer was maleic anhydride-grafted polypropylene) A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10 parts of metal-organic framework material; 1 part compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 20 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20 min, transfer to a reaction vessel, heat to 100℃ and react for 24 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L.

[0043] Furthermore, the amount of terephthalic acid added to N,N-dimethylformamide is 8 mol / L.

[0044] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0045] Furthermore, the compatibilizer is maleic anhydride-grafted polypropylene.

[0046] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers. A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of Modified Nylon Fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0047] Comparative Example 4 (Compatibilizer: butyl acrylate) A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10 parts of metal-organic framework material; 1 part compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 20 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20 min, transfer to a reaction vessel, heat to 100℃ and react for 24 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L.

[0048] Furthermore, the amount of terephthalic acid added to N,N-dimethylformamide is 8 mol / L.

[0049] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0050] Furthermore, the compatibilizer is butyl acrylate.

[0051] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers; A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of modified nylon fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0052] Comparative Example 5 (without three-proof finishing agent impregnation treatment) A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10 parts of metal-organic framework material; 1 part compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20 minutes to obtain mixture A; S2. Add 2 terephthalic acids to N,N-dimethylformamide and stir for 20 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20 min, transfer to a reaction vessel, heat to 100℃ and react for 24 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L.

[0053] Furthermore, the amount of terephthalic acid added to N,N-dimethylformamide is 8 mol / L.

[0054] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0055] Furthermore, the compatibilizer is butyl acrylate.

[0056] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers. A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of Modified Nylon Fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. Comparative Example 6 (Zinc metal-organic framework material replaces copper metal-organic framework material) A processing technology for a three-proof and breathable nylon fabric, wherein the three-proof and breathable nylon fabric comprises the following raw material components by weight: 120 polyamide chips; 10 parts of metal-organic framework material; 1 part compatibilizer A method for preparing a three-proof and breathable metal-organic framework material includes the following steps: S1. Add zinc nitrate hexahydrate to N,N-dimethylformamide and stir for 20 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 20 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20 min, transfer to a reaction vessel, heat to 100℃ and react for 24 h, remove, cool, wash and dry to obtain the metal-organic framework material; Furthermore, the amount of zinc nitrate hexahydrate added to N,N-dimethylformamide is 8 mol / L.

[0057] Furthermore, the amount of 2-aminoterephthalic acid added to N,N-dimethylformamide is 8 mol / L.

[0058] Furthermore, the volume ratio of the mixture B to the mixture A is 1:1.

[0059] Furthermore, the compatibilizer is butyl acrylate.

[0060] The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers; A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of modified nylon fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

[0061] (1) Three-proof test The tests were conducted in accordance with GB / T 4745-2012 "Test and Evaluation of Water Repellency of Textiles - Water-Soaking Method", GB / T 19977-2014 "Test of Oil Repellency and Hydrocarbon Resistance of Textiles", and FZ / T 01118-2012 "Test and Evaluation of Stain Repellency of Textiles - Stain Removability".

[0062] (2) Air permeability test According to standard DiN53-887 "Determination of air permeability of fabrics", an air permeability tester was used to test a 20cm×20cm air permeable fabric. The test conditions were: temperature (20±2)℃, relative humidity (65±2)%, standard atmosphere, and external pressure of 100Pa. Measurements were taken at 5 different locations on the fabric, and the average value was taken.

[0063] Table 1 Test Result Analysis Table

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A processing technology for a three-proof and breathable nylon fabric, characterized in that, The three-proof and breathable nylon fabric contains the following raw material components by weight: 120 polyamide chips; 10-20 parts of metal-organic framework material; Compatibilizer 1-3 parts.

2. A processing technology for a three-proof and breathable nylon fabric, characterized in that: The preparation method of the metal-organic framework material includes the following steps: S1. Add copper nitrate trihydrate to N,N-dimethylformamide and stir for 20-30 minutes to obtain mixture A; S2. Add 2-aminoterephthalic acid to N,N-dimethylformamide and stir for 20-30 minutes to obtain mixture B; S3. Add the S2 mixture B to the S1 mixture A, sonicate for 20-40 minutes, transfer to a reaction vessel, heat to 100-120℃ and react for 24-48 hours, remove, cool, wash and dry to obtain the metal-organic framework material.

3. The processing technology of a three-proof and breathable nylon fabric according to claim 2, characterized in that: In S1, the amount of copper nitrate trihydrate added to N,N-dimethylformamide is 8 mol / L to 12 mol / L.

4. The processing technology of a three-proof and breathable nylon fabric according to claim 2, characterized in that: In S2, the amount of 2-aminoterephthalic acid added to N,N-dimethylformamide is 8 mol / L to 12 mol / L.

5. The processing technology of a three-proof and breathable nylon fabric according to claim 2, characterized in that: In S3, the volume ratio of the mixture B to the mixture A is 1:

1.

6. The processing technology of a three-proof and breathable nylon fabric according to claim 1, characterized in that, The compatibilizer is one of maleic anhydride-grafted ABS (ABS-g-MAH), maleic anhydride-grafted polypropylene, or butyl acrylate.

7. The processing technology of a three-proof breathable nylon fabric according to claim 1, characterized in that, The processing technology for a three-proof and breathable nylon fabric specifically includes the following steps: A1. Material Blending Polyamide chips, metal-organic framework materials, and compatibilizer materials are mixed at high speed for 5 minutes, then kept at 80-120℃ for 0.5 hours, and then mixed at the same stirring rate for 5 minutes to obtain a premix. The high-speed stirring rate is 800-1200 rpm. A2. Preparation of modified nylon fibers The premixed material is melt-blended and extruded using a twin-screw extruder, then drawn, granulated, and dried, and finally melt-spun to obtain modified nylon fibers. A3. Fiber Treatment Take fluorosilane and methanol, mix and stir to obtain a pretreatment solution, then place the modified nylon fiber in the pretreatment solution for padding treatment, with a padding bath ratio of 1:

28. After padding treatment, pre-dry at 100℃ and place at room temperature for 12 hours. A4. Preparation of Modified Nylon Fabric The fibers processed in step A3 are processed into woven or nonwoven fabrics according to the requirements of use to obtain the base fabric, and then further processed to obtain modified nylon fabric. A5. Post-treatment finishing after three-proofing A three-proof finishing agent is prepared, and a two-dip and two-paste treatment process is used to perform three-proof finishing on the modified nylon fabric described in step A4. The fabric is then subjected to high-temperature ultrasonic treatment, washing, and drying to obtain a three-proof breathable nylon fabric.

8. The processing technology of a three-proof and breathable nylon fabric as described in claim 7, characterized in that: In A5, the concentration of the three-proof finishing agent is 60-80 g / L.

9. A three-proof breathable nylon fabric is prepared by the processing technology of the three-proof breathable nylon fabric described in any one of claims 1-8.

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