Waterproof breathable fabric and preparation method thereof

Abstract

The invention discloses a waterproof breathable fabric and a preparation method thereof. The fabric is prepared from the following raw materials in parts by weight: 50-100 parts of polyester, 10-20 parts of nylon, 10-20 parts of spandex, 4-8 parts of a waterproof agent, 4-6 parts of a wear-resistant agent, 3-5 parts of an anti-wrinkle finishing agent, 3-5 parts of an antibacterial agent and 1-3 parts of a coupling agent. According to the waterproof breathable fabric, the polyester, the nylon and the spandex are blended, so that the waterproof breathable fabric is high in waterproofness, wear resistance and wrinkle resistance. The water resistance of the material is enhanced through the composite use of TexnologyM230 and tego1500n in the components, the wear resistance of the material is improved through the combined use of perfluoroalkyl acrylate and boron nitride, and the wrinkle resistance of the material is improved through the combined use of 4, 5-dialdehyde thiazole modified amino-terminated silicone oil and polyether modified polysiloxane.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of blended fabric preparation, and particularly relates to a waterproof and breathable fabric and a preparation method thereof. BACKGROUND

[0002] The waterproof and breathable fabric is a functional textile material which can not only block liquid water penetration but also allow water vapor (sweat evaporation) to pass through, thereby keeping the wearer dry and comfortable. It is widely used in outdoor clothing, medical protection, building waterproofing and other fields. The waterproof and breathable fabric prepared by using polytetrafluoroethylene or polyurethane has a pore size between water molecules and water droplets, allowing water vapor to pass through but blocking liquid water, and has high moisture permeability. However, the micropores may be blocked by dirt and grease after long-term use, affecting the air permeability. The non-porous hydrophilic film (such as polyurethane PU) absorbs-diffuses-desorbs water vapor through the hydrophilic groups of the polymer chain to achieve moisture permeability, and has good stain resistance and is not easy to block, but the moisture permeability effect is poor.

[0003] Polyester (chemical name: polyethylene terephthalate, abbreviated as PET) is the synthetic fiber with the largest global output and the most widely application, accounting for more than 70% of the total synthetic fiber output. Polyester has stable performance, is resistant to mildew and insect damage, and has better size stability after washing than natural fibers; has strong plasticity and can simulate silk, wool and cotton through modification to meet the needs of multiple scenarios. The defects of polyester are poor moisture absorption, easy pilling and difficult degradation. Nylon is a synthetic polymer belonging to the polyamide family, which was first invented by DuPont in 1935. Nylon has high mechanical strength, excellent wear resistance and chemical corrosion resistance. Nylon can easily absorb water, resulting in size changes and mechanical property degradation of the fabric. Spandex, also known as Lycra, is a synthetic elastic fiber made of polyurethane, which has super elasticity and resilience and is widely used in clothing, sportswear, underwear and other fields. Spandex fabric has high elasticity, resistance to sweat, seawater, detergents and fading, but has poor moisture absorption and heat resistance, is not resistant to chlorine and is prone to yellowing. Although the fabric blended with polyester, nylon and spandex can partially overcome the defects of each, it still has problems of poor waterproofness, wear resistance and wrinkle resistance. SUMMARY

[0004] The application aims to provide a waterproof and breathable fabric and a preparation method thereof.

[0005] A waterproof and breathable fabric comprises the following raw materials in parts by weight: 50-100 parts of polyester, 10-20 parts of nylon, 10-20 parts of spandex, 4-8 parts of waterproof agent, 4-6 parts of wear-resistant agent, 3-5 parts of anti-wrinkle finishing agent, 3-5 parts of antibacterial agent and 1-3 parts of coupling agent.

[0006] The waterproof agent is a mixed waterproof agent of waterproof agent Texnology M230 and waterproof agent tego1500n in a mass ratio of (1-3):1.

[0007] The wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride in a mass ratio of (2-4):1.

[0008] The anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of (1-3):1.

[0009] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil is as follows: 8-12 parts of 4,5-dialdehyde thiazole and 8-12 parts of double-end amino silicone oil are added to 30-50 parts of isopropyl alcohol solvent, and reflux stirring reaction is carried out at 60-80℃ for 4-6h, and the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0010] The molecular formula of the polyether modified polysiloxane is: .

[0011] The coupling agent is one or more of silane coupling agent KH-560, silane coupling agent KH-570, silane coupling agent HD-792, silane coupling agent PSI-520, and phthalate coupling agent.

[0012] The antibacterial agent is one or more of methylisothiazolinone, zinc oxide, chitosan, and nano silver powder.

[0013] The preparation method of the waterproof and breathable fabric is as follows: (1) according to weight fraction, take polyester 50-100 parts, nylon 10-20 parts, spandex 10-20 parts, waterproof agent 4-8 parts, wear-resistant agent 4-6 parts, anti-wrinkle finishing agent 3-5 parts, antibacterial agent 3-5 parts, coupling agent 1-3 parts, add water 100-200 parts, stir for 10-20min, and mix uniformly; (2) dry at 90-120℃ for 24-36h, and then melt and spin into original yarn through special-shaped spinneret at 220-240℃; (3) the original yarn prepared in step (2) is wound, wound, balanced, guided, pre-stretched, and oiled, and then stretched once or twice, and finally tensioned, crimped, relaxed, heat set, cut, and finally obtained mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by weaving.

[0014] The waterproof and breathable fabric is dyed to form a colored fabric.

[0015] The waterproof and breathable fabric of the present application adopts polyester, nylon and spandex blending, and has high waterproofness, wear resistance and wrinkle resistance. The composite use of Texnology M230 and tego1500n in the component enhances the waterproofness of the material, the combination use of perfluoroalkyl acrylate and boron nitride improves the wear resistance of the material, and the combination use of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane improves the wrinkle resistance of the material. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of the present application, the present application will be described more fully below. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Example 1

[0017] A waterproof and breathable fabric, comprising the following raw materials in parts by weight: polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproofing agent 6 parts, wear-resistant agent 5 parts, anti-wrinkle finishing agent 4 parts, methylisothiazolinone 4 parts, silane coupling agent KH-560 2 parts; the waterproofing agent is a mixed waterproofing agent of waterproofing agent Texnology M230 and waterproofing agent tego1500n mixed in a mass ratio of 2:1, Texnology M230 is a fluorine-free waterproofing agent, purchased from Guangzhou Lianzhuang Technology Co., Ltd., and tego1500n is an amino-containing polysiloxane solution, purchased from Shanghai Boding Chemical Co., Ltd.; the wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride mixed in a mass ratio of 3:1; the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane mixed in a mass ratio of 2:1.

[0018] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil is as follows: 10 parts of 4,5-dialdehyde thiazole and 10 parts of double-end amino silicone oil are added to 40 parts of isopropyl alcohol solvent, refluxed and stirred at 70℃ for 5h, and the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0019] The molecular formula of the polyether modified polysiloxane is: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying polyether modified organic silicon anti-wrinkle finishing agent and its preparation method and application.

[0020] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, wear-resistant agent 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts, adding water 150 parts, stirring for 15 min, and mixing uniformly; (2) drying at 110 DEG C for 28 h, and then melting and spinning into a raw yarn through a special-shaped spinneret at 230 DEG C; (3) the raw yarn prepared in step (2) is wound, wound, balanced, guided, pre-stretched, oiled, stretched once or twice, and finally tensioned, curled, relaxed, heat set, cut, and finally obtained a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by weaving. Example 2

[0021] A waterproof and breathable fabric, comprising the following raw materials by weight: polyester 55 parts, nylon 12 parts, spandex 12 parts, waterproof agent 4 parts, wear-resistant agent 4 parts, anti-wrinkle finishing agent 4 parts, zinc oxide 3 parts, silane coupling agent PSI-520 1 part; the waterproof agent is a mixed waterproof agent of waterproof agent Texnology M230 and waterproof agent tegol500n in a mass ratio of 1:1, Texnology M230 is a fluorine-free waterproof agent, purchased from Guangzhou Lianzhuang Technology Co., Ltd., tegol500n is an amino-containing polysiloxane solution, purchased from Shanghai Boding Chemical Co., Ltd.; the wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride in a mass ratio of 2:1; the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of 1:1.

[0022] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil: according to weight parts, 8 parts of 4,5-dialdehyde thiazole and 8 parts of double-end amino silicone oil are added to 30 parts of isopropyl alcohol solvent, reflux stirring is carried out at 60 DEG C for 6 h, the solvent is removed by rotary evaporation, and 4,5-dialdehyde thiazole modified double-end amino silicone oil is obtained.

[0023] The molecular formula of the polyether modified polysiloxane is: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying polyether modified organic silicon anti-wrinkle finishing agent and its preparation method and application.

[0024] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking polyester 55 parts, nylon 12 parts, spandex 12 parts, waterproof agent 4 parts, wear-resistant agent 4 parts, anti-wrinkle finishing agent 4 parts, zinc oxide 3 parts, silane coupling agent PSI-520 1 part, adding water 120 parts, stirring for 10 min, and mixing uniformly according to the weight fraction; (2) drying at 90 DEG C for 36 h, and then melting and spinning into a raw yarn through a special-shaped spinneret at 220 DEG C; (3) the raw yarn prepared in step (2) is wound, wound, balanced, guided, pre-stretched, and oiled, and then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by using weaving. Example 3

[0025] A waterproof and breathable fabric, comprising the following raw materials in weight fraction: polyester 100 parts, nylon 20 parts, spandex 20 parts, waterproof agent 8 parts, wear-resistant agent 6 parts, anti-wrinkle finishing agent 5 parts, chitosan 5 parts, phthalate coupling agent 3 parts; the waterproof agent is a mixed waterproof agent of waterproof agent Texnology M230 and waterproof agent tegol50On in a mass ratio of 3:1, Texnology M230 is a fluorine-free waterproof agent, purchased from Guangzhou Lianzhuang Technology Co., Ltd., tegol50On is an amino-containing polysiloxane solution, purchased from Shanghai Boding Chemical Co., Ltd.; the wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride in a mass ratio of 4:1; the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of 3:1.

[0026] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil: according to weight fraction, 12 parts of 4,5-dialdehyde thiazole and 12 parts of double-end amino silicone oil are added to 50 parts of isopropyl alcohol solvent, reflux stirring is carried out at 80 DEG C for 6 h, and the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0027] The molecular formula of the polyether modified polysiloxane is: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying type polyether modified organosilicon anti-wrinkle finishing agent and its preparation method and application.

[0028] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking polyester 100 parts, nylon 20 parts, spandex 20 parts, waterproof agent 8 parts, wear-resistant agent 6 parts, anti-wrinkle finishing agent 5 parts, chitosan 5 parts, phthalate coupling agent 3 parts, adding water 200 parts, stirring for 20 min, and mixing uniformly according to the weight fraction; (2) drying at 120℃ for 24h, and then melting and spinning into a raw yarn through a special-shaped spinneret at 240℃; (3) the raw yarn prepared in step (2) is wound, wound, balanced, guided, pre-stretched and oiled, and then stretched once or twice, and finally tensioned, crimped, relaxed, heat set, cut, and finally obtained a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by weaving. Comparative Example 1

[0029] A waterproof and breathable fabric, comprising the following raw materials by weight fraction: polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent Texnology®M230 6 parts, wear-resistant agent 5 parts, anti-wrinkle finishing agent 4 parts, methylisothiazolinone 4 parts, silane coupling agent KH-560 2 parts; Texnology®M230 is a fluorine-free waterproof agent, purchased from Guangzhou Lianzhuang Technology Co., Ltd.; the wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride in a mass ratio of 3:1; the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of 2:1.

[0030] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil: according to weight fraction, 10 parts of 4,5-dialdehyde thiazole and 10 parts of double-end amino silicone oil are added to 40 parts of isopropyl alcohol solvent, refluxed and stirred at 70℃ for 5h, and the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0031] The molecular formula of the polyether modified polysiloxane is: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying polyether modified organic silicon anti-wrinkle finishing agent and its preparation method and application.

[0032] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent Texnology M230 6 parts, wear-resistant agent 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts, adding water 150 parts, stirring for 15 min, and mixing uniformly; (2) drying at 110 DEG C for 28 h, and then melting and spinning into a raw yarn through a special-shaped spinneret at 230 DEG C; (3) the raw yarn prepared in step (2) is wound, drummed, balanced and bundled, guided, pre-stretched and oiled, and then stretched once or twice, and finally tensioned, heat set, crimped, relaxed, heat set and cut, to obtain a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by using a weaving machine. Comparative Example 2

[0033] A waterproof and breathable fabric includes the following raw materials by weight: polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent tegon 1500n 6 parts, wear-resistant agent 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, and silane coupling agent KH-560 2 parts; tegon 1500n is an amino-containing polysiloxane solution purchased from Shanghai Boding Chemical Co., Ltd.; the wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride in a mass ratio of 3:1; and the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of 2:1.

[0034] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil is as follows: 10 parts of 4,5-dialdehyde thiazole and 10 parts of double-end amino silicone oil are added to 40 parts of isopropyl alcohol solvent, and stirred and refluxed at 70 DEG C for 5 h, and then the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0035] The molecular formula of the polyether modified polysiloxane is as follows: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying polyether modified organic silicon anti-wrinkle finishing agent and its preparation method and application.

[0036] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent tegon 1500n 6 parts, wear-resistant agent 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts, adding water 150 parts, stirring for 15 min, and mixing uniformly; (2) drying at 110 DEG C for 28 h, and then melting and spinning into a raw yarn through a special-shaped spinneret at 230 DEG C; (3) the raw yarn prepared in step (2) is wound, drummed, balanced and bundled, guided, pre-stretched and oiled, and then stretched once or twice, and finally tensioned, heat set, crimped, relaxed, heat set and cut, to obtain a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by using a weaving machine. Comparative example 3

[0037] A waterproof and breathable fabric includes the following raw materials by weight: polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, perfluoroalkyl acrylate 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, and silane coupling agent KH-560 2 parts; the waterproof agent is a mixed waterproof agent of waterproof agent Texnology M230 and waterproof agent tegon 1500n in a mass ratio of 2:1, Texnology M230 is a fluorine-free waterproof agent purchased from Guangzhou Lianzhuang Technology Co., Ltd., and tegon 1500n is an amino-containing polysiloxane solution purchased from Shanghai Boding Chemical Co., Ltd.; the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of 2:1.

[0038] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil is as follows: according to weight parts, 10 parts of 4,5-dialdehyde thiazole and 10 parts of double-end amino silicone oil are added to 40 parts of isopropyl alcohol solvent, reflux stirring is carried out at 70 DEG C for 5 h, and the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0039] The molecular formula of the polyether modified polysiloxane is: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying polyether modified organosilicon anti-wrinkle finishing agent and its preparation method and application.

[0040] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, perfluoroalkyl acrylate 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts, adding water 150 parts, stirring for 15 min, and mixing uniformly; (2) drying at 110 DEG C for 28 h, and then melting and spinning into a raw yarn through a special-shaped spinneret at 230 DEG C; (3) the raw yarn prepared in step (2) is wound, wound, balanced, guided, pre-stretched and oiled, and then stretched once or twice, and finally tensioned, curled, relaxed, heat set, cut, and finally obtained a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by weaving. Comparative Example 4

[0041] A waterproof and breathable fabric, comprising the following raw materials by weight: polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, boron nitride 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts; the waterproof agent is a mixed waterproof agent of waterproof agent Texnology M230 and waterproof agent tegol500n mixed in a mass ratio of 2:1, Texnology M230 is a fluorine-free waterproof agent, purchased from Guangzhou Lianzhuang Technology Co., Ltd., tegol500n is an amino-containing polysiloxane solution, purchased from Shanghai Boding Chemical Co., Ltd.; the anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole modified double-end amino silicone oil and polyether modified polysiloxane in a mass ratio of 2:1.

[0042] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil: according to weight parts, 10 parts of 4,5-dialdehyde thiazole and 10 parts of double-end amino silicone oil are added to 40 parts of isopropyl alcohol solvent, reflux stirring is carried out at 70 DEG C for 5 h, and the solvent is removed by rotary evaporation to obtain 4,5-dialdehyde thiazole modified double-end amino silicone oil.

[0043] The molecular formula of the polyether modified polysiloxane is: The compound is prepared according to the method described in Example 1 of CN202210274113.5 self-emulsifying polyether modified organic silicon anti-wrinkle finishing agent and its preparation method and application.

[0044] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) according to the weight fraction, take polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, boron nitride 5 parts, anti-wrinkle finishing agent 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts, add water 150 parts, stir for 15 min, mix uniformly; (2) dry at 110 DEG C for 28 h, then melt spinning into original wire through special spinneret at 230 DEG C; (3) the original wire prepared in step (2) is wound, falls the cylinder, balances the cluster, guides the wire, pre-stretches and oils, then is stretched once or twice, finally is carried out tension heat setting, crimping, relaxation heat setting, cutting, finally obtains mixed fiber; (4) the mixed fiber is woven into waterproof and breathable fabric by using weaving. Comparative example 5

[0045] A waterproof and breathable fabric, comprising the following raw materials by weight fraction: polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, wear-resistant agent 5 parts, 4,5-dialdehyde thiazole modified double-end amino silicone oil 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts; the waterproof agent is a mixed waterproof agent mixed by waterproof agent Texnology M230 and waterproof agent tego1500n according to a mass ratio of 2:1, Texnology M230 is a fluorine-free waterproof agent, purchased from Guangzhou Lianzhuang Technology Co., Ltd., tego1500n is an amino-containing polysiloxane solution, purchased from Shanghai Boding Chemical Co., Ltd.; the wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride according to a mass ratio of 3:1.

[0046] The preparation method of the 4,5-dialdehyde thiazole modified double-end amino silicone oil: according to the weight fraction, 10 parts of 4,5-dialdehyde thiazole and 10 parts of double-end amino silicone oil are added to 40 parts of isopropyl alcohol solvent, reflux stirring is carried out at 70 DEG C for 5 h, the solvent is removed by rotary evaporation, and 4,5-dialdehyde thiazole modified double-end amino silicone oil is obtained.

[0047] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) according to the weight fraction, take polyester 80 parts, nylon 15 parts, spandex 15 parts, waterproof agent 6 parts, wear-resistant agent 5 parts, 4,5-dialdehyde thiazole modified double-end amino silicone oil 4 parts, methyl isothiazolinone 4 parts, silane coupling agent KH-560 2 parts, add water 150 parts, stir for 15 min, mix uniformly; (2) dry at 110 DEG C for 28 h, then melt spinning into original wire through special spinneret at 230 DEG C; (3) the original wire prepared in step (2) is wound, falls the cylinder, balances the cluster, guides the wire, pre-stretches and oils, then is stretched once or twice, finally is carried out tension heat setting, crimping, relaxation heat setting, cutting, finally obtains mixed fiber; (4) the mixed fiber is woven into waterproof and breathable fabric by using weaving. Comparative Example 6

[0048] A waterproof and breathable fabric includes the following raw materials in parts by weight: 80 parts of polyester, 15 parts of nylon, 15 parts of spandex, 6 parts of a waterproofing agent, 5 parts of an anti-wear agent, 4 parts of polyether-modified polysiloxane, 4 parts of methylisothiazolinone, and 2 parts of a silane coupling agent KH-560; the waterproofing agent is a mixed waterproofing agent of Texnology® M230 and Tego 1500n in a mass ratio of 2:1, Texnology® M230 is a fluorine-free waterproofing agent purchased from Guangzhou Lianzhuang Technology Co., Ltd., and Tego 1500n is an amino-containing polysiloxane solution purchased from Shanghai Buding Chemical Co., Ltd.

[0049] The molecular formula of the polyether-modified polysiloxane is: The preparation of the compound refers to the method described in Example 1 of CN202210274113.5 Self-emulsifying polyether-modified silicone anti-wrinkle finishing agent and its preparation method and application.

[0050] The preparation method of the waterproof and breathable fabric is carried out according to the following steps: (1) taking 80 parts of polyester, 15 parts of nylon, 15 parts of spandex, 6 parts of waterproofing agent, 5 parts of wear-resistant agent, 4 parts of polyether modified polysiloxane, 4 parts of methylisothiazolinone, and 2 parts of silane coupling agent KH-560 according to parts by weight, adding 150 parts of water, stirring for 15 minutes, and mixing evenly; (2) drying at 110°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to form raw yarn; (3) the raw yarn prepared in step (2) is wound, doffed, balanced bundled, guided, pre-stretched and oiled, and then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to finally obtain a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by machine weaving.

[0051] Experimental Example: The water repellency of the fabrics prepared in Examples 1-3 and Comparative Examples 1-2 was measured according to the provisions of AATCC-22; the measurement results are shown in Table 1: Table 1 Experimental group Water repellency rating (30 water washes) Example 1 5 Example 2 4.5 Example 3 5 Comparative Example 1 4 Comparative Example 2 4 Referring to the GB / T 21196.2-2007 standard, under standard atmospheric conditions (20+2°C, 65+5% RH), 6.5cm×6.5cm specimens were cut and subjected to a wear resistance test using a Martindale abrasion tester. The specimens were rubbed continuously until they wore away. The friction load was 797±7g. The test results are shown in Table 2: Table 2 Experimental group Abrasion resistance (passes) Example 1 38000 Example 2 36000 Example 3 37000 Comparative Example 3 22000 Comparative Example 4 24000 The wrinkle recovery angles of the fabrics prepared in Examples 1-3 and Comparative Examples 5-6 were tested according to the AATCC 66-2017 standard test method, each material was repeated 3 times to take the average value, the statistical analysis was performed by using SPSS 24.0 software, the measurement data results were expressed by x±s (mean±standard deviation), the data normality test was performed by using Kolmogorov-Smirnov test method, for the data conforming to normal distribution, the mean difference between two groups was compared by t test, P<0.05 was considered to have statistical significance, and the determination results are shown in Table 3: Table 3 Experimental group Crease recovery angle (warp) Crease recovery angle (weft) Example 1 133.4±2.6 128.6±2.1 Example 2 136.5±2.1 131.2±2.3 Example 3 129.9±1.8 126.7±1.2 Comparative Example 5 98.3±1.6* 96.5±2.1* Comparative Example 6 95.5±2.3* 94.7±2.5* Note: * represents P<0.05 compared with Example 1 group.

[0052] The above-described examples only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A waterproof and breathable fabric, characterized in that: The invention comprises the following raw materials in parts by weight: 50-100 parts of polyester, 10-20 parts of nylon, 10-20 parts of spandex, 4-8 parts of waterproofing agent, 4-6 parts of wear-resistant agent, 3-5 parts of anti-wrinkle finishing agent, 3-5 parts of antibacterial agent and 1-3 parts of coupling agent.

2. The waterproof and breathable fabric according to claim 1, characterized in that: The waterproofing agent is a mixed waterproofing agent obtained by mixing the waterproofing agent Texnology® M230 and the waterproofing agent tego1500n in a mass ratio of (1-3):

1.

3. The waterproof and breathable fabric according to claim 1, characterized in that: The wear-resistant agent is a mixture of perfluoroalkyl acrylate and boron nitride in a mass ratio of (2-4):

1.

4. The waterproof and breathable fabric according to claim 1, characterized in that: The anti-wrinkle finishing agent is a mixture of 4,5-dialdehyde thiazole-modified double-terminated amino silicone oil and polyether-modified polysiloxane in a mass ratio of (1-3):

1.

5. The waterproof and breathable fabric according to claim 4, characterized in that: The preparation method of the 4,5-dialdehyde thiazole modified dual-terminated amino silicone oil comprises the following steps: adding 8-12 parts of 4,5-dialdehyde thiazole and 8-12 parts of dual-terminated amino silicone oil to 30-50 parts of isopropanol solvent in parts by weight, stirring under reflux at 60-80° C. for 4-6 hours, and removing the solvent by rotary evaporation to obtain the 4,5-dialdehyde thiazole modified dual-terminated amino silicone oil.

6. The waterproof and breathable fabric according to claim 4, characterized in that: The molecular formula of the polyether-modified polysiloxane is: 。 7. The waterproof and breathable fabric according to claim 1, characterized in that: The coupling agent is one or more of silane coupling agent KH-560, silane coupling agent KH-570, silane coupling agent HD-792, silane coupling agent PSI-520, and phthalate coupling agent.

8. The waterproof and breathable fabric according to claim 1, characterized in that: The antibacterial agent is one or more of methylisothiazolinone, zinc oxide, chitosan and nano silver powder.

9. The method for preparing the waterproof and breathable fabric according to claim 1, characterized in that: The process is as follows: (1) according to weight, take 50-100 parts of polyester, 10-20 parts of nylon, 10-20 parts of spandex, 4-8 parts of waterproofing agent, 4-6 parts of wear-resistant agent, 3-5 parts of anti-wrinkle finishing agent, 3-5 parts of antibacterial agent, 1-3 parts of coupling agent, add 100-200 parts of water, stir for 10-20 minutes, and mix evenly; (2) dry at 90-120℃ for 24-36 hours, and then melt-spin through a shaped spinneret at 220-240℃ to form raw yarn; (3) the raw yarn prepared in step (2) is wound, doffed, balanced bundled, guided, pre-stretched and oiled, and then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to finally obtain a mixed fiber; (4) the mixed fiber is woven into a waterproof and breathable fabric by machine weaving.

10. The method for preparing the waterproof and breathable fabric according to claim 9, characterized in that: The waterproof and breathable fabric is dyed to produce colorful cloth.

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