A breathable fabric and a method for making the same
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HONGYU TEXTILE ZHEJIANG CO LTD
- Filing Date
- 2026-04-14
- Publication Date
- 2026-06-09
Smart Images
Figure SMS_1
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile fabric technology, specifically to a breathable fabric and its preparation method. Background Technology
[0002] With the rapid development of the textile industry and the improvement of people's living standards, consumers have increasingly diversified requirements for the functionality of fabrics. They not only need good breathability but also demand higher standards for comprehensive performance such as hydrophilicity, elasticity, and antistatic properties. Currently, most breathable fabrics on the market use natural fibers or conventional synthetic fibers as raw materials, achieving breathability by adjusting the fabric structure. However, these fabrics often suffer from limited functionality, making it difficult to simultaneously meet the synergistic needs of breathability, hydrophilicity, elasticity, and antistatic properties. Fabrics made primarily of polyester yarn, in particular, suffer from inherent defects such as strong hydrophobicity, insufficient elastic recovery, and susceptibility to static electricity. Even with simple finishing processes, it is difficult to achieve a balance of comprehensive performance. Either the breathability is excellent but the hydrophilicity is poor and prone to static electricity, or the hydrophilicity meets the standards but the breathability is reduced and the elasticity is insufficient.
[0003] In fabric preparation, sizing is a crucial step in improving fabric weaving performance. However, residual sizing can clog fabric pores, affecting subsequent finishing processes and fabric breathability. The desizing step, a core step in addressing this issue, often suffers from problems such as difficulty in controlling the degree of desizing, incomplete desizing, or excessive desizing leading to decreased fabric strength. This either fails to effectively unclog fabric pores to improve breathability or damages the fabric fiber structure, affecting mechanical properties and durability. Furthermore, existing composite finishing solutions often use traditional emulsifiers, resulting in poor emulsification stability and insufficient functional durability of the finished fabric. Moreover, the lack of synergistic effects between functional components makes it difficult to simultaneously improve breathability, hydrophilicity, and elasticity, failing to meet the needs of high-end apparel and sportswear fabrics. Therefore, developing a rational process with synergistically adapted steps that can simultaneously achieve high breathability, strong hydrophilicity, excellent elasticity, and durable antistatic properties has become a pressing technical challenge in the textile industry. Summary of the Invention
[0004] The purpose of this invention is to provide a breathable fabric and its preparation method, thereby solving the following technical problems:
[0005] Existing breathable fabrics suffer from reduced elasticity, poor hydrophilicity and breathability, and complex manufacturing methods.
[0006] The objective of this invention can be achieved through the following technical solutions:
[0007] A method for preparing a breathable fabric includes the following steps:
[0008] After sizing the antistatic fabric by immersing it in a sizing solution, a sized antistatic fabric is obtained.
[0009] The sized antistatic fabric is immersed in a desizing solution for desizing treatment to obtain a desized antistatic fabric.
[0010] The fabric is treated with a composite finishing solution for reducing sizing and antistatic fabric, then dried and set to obtain a breathable fabric.
[0011] As a further aspect of the present invention: the antistatic fabric contains at least 50 wt% polyester yarn, and the polyester yarn is made of at least one of polyethylene terephthalate, polybutylene terephthalate, polyamide 6, or polyamide 66.
[0012] As a further aspect of the present invention, the content of polyester yarn in the reduced-weight desizing antistatic fabric is reduced by 10-20 wt% relative to the content of polyester yarn in the antistatic fabric.
[0013] As a further aspect of the present invention, the preparation method of the finishing solution includes at least the following preparation steps:
[0014] Alkyl glycoside and hexadecyltrimethylammonium bromide were added to deionized water to obtain an aqueous phase. 2-Ethylhexyl acrylate and ethylene glycol dimethacrylate were mixed to obtain an oil phase. The aqueous phase was added to the oil phase to obtain a pre-emulsion. A portion of the pre-emulsion was mixed with an initiator to obtain a seed emulsion. The remaining pre-emulsion was mixed with the initiator and then added dropwise to the seed emulsion. After reaction, the mixture was filtered to obtain a Pickering nanoparticle emulsion.
[0015] Maleic anhydride was melted, and polyetheramine ED600 was added dropwise to react. After cooling, adipic acid, hexamethylenediamine, and deionized water were added. After heating and dehydration, phosphorous acid was added. The reaction was continued while the vacuum was drawn. After cooling, low molecular weight polyethylene glycol and amino silicone oil were added and stirred. Then, deionized water was added and mixed to obtain a hydrophilic silicone-modified polyamide emulsion.
[0016] The Pickering nanoparticle emulsion and the hydrophilic silica-modified polyamide emulsion are mixed and the pH is adjusted to 5.5-6 to obtain a composite finishing solution.
[0017] As a further aspect of the present invention: the mass ratio of the Pickering nanoparticle emulsion to the hydrophilic silicone-modified polyamide emulsion is 1:0.5-2, the solid content of the Pickering nanoparticle emulsion is 5-20wt%, the particle size of the Pickering nanoparticles in the Pickering nanoparticle emulsion is 100-200nm, and the concentration of the hydrophilic silicone-modified polyamide emulsion is 20-40wt%.
[0018] As a further aspect of the present invention: the mass ratio of the alkyl glycoside, the hexadecyltrimethylammonium bromide, the 2-ethylhexyl acrylate and the ethylene glycol dimethacrylate is 0.1-0.2:0.2-0.4:4-5:0.3-0.7, and the mass ratio of the maleic anhydride, the polyetheramine ED600, the adipic acid, the hexamethylenediamine, the low molecular weight polyethylene glycol and the amino silicone oil is 9-11:28-32:7-8:5-7:3-8:8-12.
[0019] As a further aspect of the present invention: the liquid yield of the finishing process is 80-95%, the drying temperature is 70-100℃, and the setting temperature is 150-180℃ for 1-5 minutes.
[0020] As a further aspect of the present invention: the slurry is a polyvinyl alcohol slurry or polyacrylate slurry with a solid content of 5-15wt%, the desizing solution is a caustic soda aqueous solution, and the desizing treatment is performed at a temperature of 60-100℃, a time of 30-80min, and a caustic soda concentration of 5-60g / L.
[0021] A breathable fabric, made by any of the preparation methods described above.
[0022] The beneficial effects of this invention are:
[0023] This invention provides a breathable fabric and its preparation method, employing a three-step process of sizing, desizing, and composite finishing. The resulting breathable fabric possesses comprehensive properties including high breathability, high elasticity, hydrophilicity, antistatic properties, and washability. This invention combines desizing and alkali reduction treatment into one process, using a desizing solution to simultaneously remove sizing material and micro-etch the polyester yarn surface. During the desizing process, the desizing solution removes sizing material while simultaneously performing controlled hydrolysis on the polyester yarn surface, creating a uniform micro-etched structure. This forms breathable channels extending from the yarn surface inwards between and within the yarn, and controls the polyester yarn reduction to 10-20 wt%, significantly improving the fabric's breathability while avoiding problems such as decreased fabric strength and loose structure caused by excessive reduction. Simultaneously, the desizing treatment also moderately etches the polyester yarn surface, increasing fiber surface roughness, which is beneficial for the bonding of functional components in the subsequent composite finishing solution with the fibers, improving the durability of the finishing effect. This invention integrates two traditionally separate steps into one, shortening the process flow, reducing energy and water consumption, and exhibiting good economic and environmental benefits. Furthermore...
[0024] The composite finishing liquid prepared in this invention is a blend of Pickering nanoparticle emulsion and hydrophilic silicone-modified polyamide emulsion. The Pickering nanoparticle emulsion is prepared using a seed emulsion polymerization process with alkyl glycosides and hexadecyltrimethylammonium bromide as the composite emulsion system. The prepared nanoparticles have uniform particle size and good dispersibility, exhibiting excellent emulsification stabilization and forming a thin, breathable protective film on the fabric fiber surface, thus improving the fabric's elasticity and durability. The hydrophilic silicone-modified polyamide emulsion is modified through the addition reaction of maleic anhydride and polyetheramine ED600, combined with the condensation reaction of adipic acid and hexamethylenediamine, and further modified with low molecular weight polyethylene glycol and amino silicone oil. This combination of the strong adhesion of polyamide, the hydrophilicity of polyether, and the elasticity of silicone effectively improves the fabric's hydrophilicity and elastic recovery rate. Pickering nanoparticles act as dispersing stabilizers, improving the uniformity of dispersion of hydrophilic silica-modified polyamide emulsions in finishing solutions and preventing their aggregation and precipitation. Simultaneously, the active groups on their surface can form hydrogen bonds with the amino and hydroxyl groups in the hydrophilic silica-modified polyamide, promoting the adsorption and fixation of functional components on the fabric fiber surface. The hydrophilic silica-modified polyamide, in turn, fills the gaps between the Pickering nanoparticles, forming a continuous and breathable functional film, ensuring both the fabric's breathability and enhanced hydrophilicity and elasticity. This invention, through the organic combination of a reduced-volume desizing process and a composite finishing solution, achieves multiple improvements in breathability, elasticity, hydrophilicity, and washability. The resulting breathable fabric can be widely used in sportswear, outdoor equipment, and functional underwear, demonstrating promising market application prospects. Detailed Implementation
[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] Example 1: A method for preparing a breathable fabric includes the following steps:
[0027] 1.4 g of alkyl glycoside and 2.8 g of hexadecyltrimethylammonium bromide were dissolved in 470 g of deionized water to obtain an aqueous phase. 43 g of 2-ethylhexyl acrylate and 5 g of ethylene glycol dimethacrylate were mixed to obtain an oil phase. 350 g of the aqueous phase and the oil phase were mixed and sheared at 5000 r / min for 30 min using a high-speed shear emulsifier to obtain a pre-emulsion. The remaining aqueous phase was transferred to a four-necked flask, purged with nitrogen, and heated to 80 °C. 200 g of the pre-emulsion and an aqueous solution of 0.2 g of initiator 2,2'-azobis(2-methylpropylamidine) dihydrochloride were added, and the reaction was carried out for 10 min to obtain a seed emulsion. The remaining pre-emulsion was mixed with an aqueous solution of 0.8 g of the initiator and added dropwise to the seed emulsion over 3 h. After the addition was complete, the mixture was kept at 80 °C for 2 h, cooled, and filtered to obtain a Pickering nanoparticle emulsion with a solid content of approximately 10%.
[0028] 9.8g maleic anhydride was melted at 60℃ under nitrogen protection, and 30g polyetheramine ED600 was added dropwise. The reaction was maintained at this temperature for 2 hours. After cooling, 7.3g adipic acid, 5.8g hexamethylenediamine, and 80g deionized water were added. The mixture was heated to 170℃ for dehydration, and 0.1g phosphorous acid was added. The mixture was then heated to 210℃ for prepolymerization for 1 hour, followed by polycondensation at 230℃ for 1 hour and vacuuming for 0.5 hours. The mixture was cooled to 120℃, and 5g low molecular weight polyethylene glycol (PEG-600) and 10g amino silicone oil (TF-4906) were added. The mixture was stirred at high speed for 20 minutes, and the remaining 80g deionized water was added. The mixture was emulsified at 8000r / min for 30 minutes to obtain a hydrophilic silicone-modified polyamide emulsion.
[0029] The Pickering nanoparticle emulsion and the hydrophilic silicone-modified polyamide emulsion were mixed at a mass ratio of 1:1, stirred for 30 min, and the pH was adjusted to 5.5-6.0 with acetic acid. The mixture was then filtered through a 150-mesh filter to obtain the composite finishing solution.
[0030] Example 2: A method for preparing a breathable fabric includes the following steps:
[0031] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (10wt% polyvinyl alcohol sizing solution) for sizing treatment, with a pick-up rate of 80%, and dried at 80℃ to obtain sized antistatic fabric.
[0032] The above-mentioned sized antistatic fabric was immersed in a weight-reducing desizing solution (a caustic soda aqueous solution with a concentration of 30 g / L) and treated at 90°C for 45 min for weight-reducing desizing. After washing with water until neutral, it was dried to obtain a weight-reduced desizing antistatic fabric, which has a polyester yarn content reduced by about 15 wt% compared to the above-mentioned antistatic fabric.
[0033] The composite finishing solution prepared in Example 1 of the above-mentioned reduced-volume desizing antistatic fabric was used for finishing. The fabric was immersed at 40°C for 30 minutes with a liquid-pickup rate of 90%. After drying at 80°C for 2 minutes, it was set at 175°C for 2 minutes to obtain a breathable fabric.
[0034] Example 3: A method for preparing a breathable fabric includes the following steps:
[0035] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (8wt% polyacrylate sizing solution) for sizing treatment, with a pick-up rate of 75%, and dried at 85℃ to obtain sized antistatic fabric.
[0036] The above-mentioned sized antistatic fabric was immersed in a weight-reducing desizing solution (a 20 g / L caustic soda aqueous solution) and treated at 85°C for 40 min for weight-reducing desizing. After washing with water until neutral, it was dried to obtain a weight-reduced desizing antistatic fabric, which has a polyester yarn content reduced by about 10 wt% compared to the above-mentioned antistatic fabric.
[0037] The composite finishing solution prepared in Example 1 of the above-mentioned reduced-volume desizing antistatic fabric impregnation was used for finishing. The fabric was impregnated at 50°C for 30 minutes with a liquid-pickup rate of 95%. After drying at 75°C for 3 minutes, it was set at 170°C for 3 minutes to obtain a breathable fabric.
[0038] Example 4: A method for preparing a breathable fabric includes the following steps:
[0039] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (polyvinyl alcohol sizing solution with a concentration of 12wt%) for sizing treatment, with a pick-up rate of 85%, and dried at 80℃ to obtain sized antistatic fabric.
[0040] The above-mentioned sized antistatic fabric was immersed in a weight-reducing desizing solution (a caustic soda aqueous solution with a concentration of 50 g / L) and treated at 95°C for 60 min for weight-reducing desizing. After washing with water until neutral, it was dried to obtain a weight-reduced desizing antistatic fabric, which has a polyester yarn content reduced by about 20 wt% compared to the above-mentioned antistatic fabric.
[0041] The composite finishing solution prepared in Example 1 of the above-mentioned reduced-volume desizing antistatic fabric was used for finishing. The fabric was immersed at 40°C for 30 minutes with a liquid-pickup rate of 85%. After drying at 85°C for 1.5 minutes, it was set at 180°C for 1.5 minutes to obtain a breathable fabric.
[0042] Comparative Example 1: A method for preparing a breathable fabric includes the following steps:
[0043] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (10wt% polyvinyl alcohol sizing solution) for sizing treatment, with a pick-up rate of 80%, and dried at 80℃ to obtain sized antistatic fabric.
[0044] The above-mentioned sized antistatic fabric was immersed in a weight-reducing desizing solution (a caustic soda aqueous solution with a concentration of 30 g / L) and treated at 90°C for 45 min for weight-reducing desizing. After washing with water until neutral, it was dried to obtain a weight-reduced desizing antistatic fabric, which has a polyester yarn content reduced by about 15 wt% compared to the above-mentioned antistatic fabric.
[0045] The Pickering nanoparticle emulsion prepared in Example 1 of the above-mentioned reduced-volume desizing antistatic fabric impregnation was processed, impregnated at 40°C for 30 min, with a liquid-pickup rate of 90%, dried at 80°C for 2 min, and then set at 175°C for 2 min to obtain a breathable fabric.
[0046] Comparative Example 2: A method for preparing a breathable fabric includes the following steps:
[0047] A method for preparing a breathable fabric includes the following steps:
[0048] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (10wt% polyvinyl alcohol sizing solution) for sizing treatment, with a pick-up rate of 80%, and dried at 80℃ to obtain sized antistatic fabric.
[0049] The above-mentioned sized antistatic fabric was immersed in a weight-reducing desizing solution (a caustic soda aqueous solution with a concentration of 30 g / L) and treated at 90°C for 45 min for weight-reducing desizing. After washing with water until neutral, it was dried to obtain a weight-reduced desizing antistatic fabric, which has a polyester yarn content reduced by about 15 wt% compared to the above-mentioned antistatic fabric.
[0050] The hydrophilic silicone-modified polyamide emulsion prepared in Example 1 of the above-mentioned reduced-volume desizing antistatic fabric impregnation was processed, impregnated at 40°C for 30 min, with a liquid-pickup rate of 90%, dried at 80°C for 2 min, and then set at 175°C for 2 min to obtain a breathable fabric.
[0051] Comparative Example 3: A method for preparing a breathable fabric includes the following steps:
[0052] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (10wt% polyvinyl alcohol sizing solution) for sizing treatment, with a pick-up rate of 80%, and dried at 80℃ to obtain sized antistatic fabric.
[0053] The above-mentioned sized antistatic fabric was immersed in a weight-reducing desizing solution (a caustic soda aqueous solution with a concentration of 30 g / L) and treated at 90°C for 45 min for weight-reducing desizing. After washing with water until neutral, it was dried to obtain a weight-reduced desizing antistatic fabric, which has a polyester yarn content reduced by about 15 wt% compared to the above-mentioned antistatic fabric.
[0054] The above-mentioned reduced-weight desizing antistatic fabric was dried directly at 80℃ for 2 minutes without subsequent composite finishing, and then set at 175℃ for 2 minutes to obtain a breathable fabric.
[0055] Comparative Example 4: A method for preparing a breathable fabric includes the following steps:
[0056] Antistatic fabric (Saint-Grace, D-18) was impregnated with sizing solution (10wt% polyvinyl alcohol sizing solution) for sizing treatment, with a pick-up rate of 80%, and dried at 80℃ to obtain sized antistatic fabric.
[0057] The above-mentioned sized antistatic fabric was immersed in deionized water, treated at 90°C for 45 minutes for desizing, washed with water until neutral, and dried to obtain desized antistatic fabric.
[0058] The composite finishing solution prepared in Example 1 was used to treat the desized antistatic fabric. The fabric was immersed at 40°C for 30 minutes with a liquid-pinching rate of 90%. After drying at 80°C for 2 minutes, it was set at 175°C for 2 minutes to obtain a breathable fabric.
[0059] Performance testing
[0060] Air permeability test: According to GB / T5453-1997 "Determination of air permeability of textile fabrics", the air permeability of different parts of each sample was tested 10 times using a YG461E-Ⅲ air permeability tester, and the average value was taken; the test results are shown in Table 1.
[0061] Wash resistance: The washing procedure of the finished fabric was carried out in accordance with GB / T8629-2017 "Test Procedures for Household Washing and Drying of Textiles". The wash resistance of the finishing agent was determined by the difference in wicking height of the finished fabric before and after 10 washes. The test results are shown in Table 1.
[0062] Antistatic property test: According to GB / T12703.1-2008 "Evaluation of electrostatic properties of textiles", the peak voltage of each fabric was tested using an NF4021-Ⅰ fabric inductive electrostatic tester. Each sample was tested 10 times and the average value was taken. The test results are shown in Table 1.
[0063] Hydrophilicity test: The wetting time of the fabric was tested according to AATCC 79-2014 "Water Absorption of Textiles". A drop of deionized water was dropped onto the sample at a distance of about 10 mm from the sample surface using a dropper. The time required for the specular reflection of the water droplet to disappear was recorded as the wetting time. The test results are shown in Table 1.
[0064] Elastic recovery performance test: The elastic recovery performance of the yarn was tested using an LR10Kplus universal testing machine according to GB / T14344-2008 "Test Method for Tensile Properties of Chemical Fiber Filaments". The test method for the constant elongation tensile recovery performance was as follows: the test interval of the sample was 500 mm, the tensile speed was 500 mm / min, and 5 tensile tests were performed at a set elongation. The test results are shown in Table 1.
[0065] Table 1: Statistical Table of Test Data on Breathable Fabric Performance of Examples 2-4 and Comparative Examples 1-4
[0066] As shown in Table 1, the preparation methods provided in Examples 2-4 of this invention produce breathable fabrics with excellent breathability, high elastic recovery rate, rapid hydrophilic moisture absorption, and good antistatic and washability. In Comparative Example 1, using only Pickering nanoparticle emulsion as the finishing liquid resulted in a decrease in the elastic recovery rate of the obtained breathable fabric. In Comparative Example 2, using only hydrophilic silicone-modified polyamide emulsion as the finishing liquid resulted in a decrease in both the air permeability and hydrophilicity of the obtained breathable fabric. This indicates that Pickering nanoparticle emulsion and hydrophilic silicone-modified polyamide emulsion synergistically improve elasticity, air permeability, and hydrophilicity. In Comparative Example 3, without composite finishing liquid treatment, the obtained breathable fabric showed a decrease in both elastic recovery rate and antistatic properties. This indicates that while weight reduction treatment improved air permeability, it damaged fiber strength, leading to decreased elasticity, and the lack of finishing agent resulted in severe static electricity accumulation. In Comparative Example 4, using only deionized water for desizing without weight reduction treatment resulted in a significant decrease in the air permeability of the obtained breathable fabric. This indicates that the weight reduction desizing step is crucial for constructing internal air permeable channels in the fabric, and a simple finishing liquid cannot replace the porosity improvement brought about by physical etching.
[0067] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0068] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.
Claims
1. A method for preparing a breathable fabric, characterized in that, Includes the following steps: After sizing the antistatic fabric by immersing it in a sizing solution, a sized antistatic fabric is obtained. The sized antistatic fabric is immersed in a desizing solution for desizing treatment to obtain a desized antistatic fabric. The fabric is treated with a composite finishing solution for reducing sizing and antistatic fabric, then dried and set to obtain a breathable fabric.
2. The method for preparing a breathable fabric according to claim 1, characterized in that, The antistatic fabric contains at least 50 wt% polyester yarn, and the polyester yarn is made of at least one of polyethylene terephthalate, polybutylene terephthalate, polyamide 6, or polyamide 66.
3. The method for preparing a breathable fabric according to claim 1, characterized in that, The polyester yarn content in the reduced-weight desizing antistatic fabric is reduced by 10-20 wt% compared to the polyester yarn content in the antistatic fabric.
4. The method for preparing a breathable fabric according to claim 1, characterized in that, The preparation method of the finishing solution includes at least the following preparation steps: Alkyl glycoside and hexadecyltrimethylammonium bromide were added to deionized water to obtain an aqueous phase. 2-Ethylhexyl acrylate and ethylene glycol dimethacrylate were mixed to obtain an oil phase. The aqueous phase was added to the oil phase to obtain a pre-emulsion. A portion of the pre-emulsion was mixed with an initiator to obtain a seed emulsion. The remaining pre-emulsion was mixed with the initiator and then added dropwise to the seed emulsion. After reaction, the mixture was filtered to obtain a Pickering nanoparticle emulsion. Maleic anhydride was melted, and polyetheramine ED600 was added dropwise to react. After cooling, adipic acid, hexamethylenediamine, and deionized water were added. After heating and dehydration, phosphorous acid was added. The reaction was continued while the vacuum was drawn. After cooling, low molecular weight polyethylene glycol and amino silicone oil were added and stirred. Then, deionized water was added and mixed to obtain a hydrophilic silicone-modified polyamide emulsion. The Pickering nanoparticle emulsion and the hydrophilic silica-modified polyamide emulsion are mixed and the pH is adjusted to 5.5-6 to obtain a composite finishing solution.
5. The method for preparing a breathable fabric according to claim 4, characterized in that, The mass ratio of the Pickering nanoparticle emulsion to the hydrophilic silicone-modified polyamide emulsion is 1:0.5-2, the solid content of the Pickering nanoparticle emulsion is 5-20 wt%, the particle size of the Pickering nanoparticles in the Pickering nanoparticle emulsion is 100-200 nm, and the concentration of the hydrophilic silicone-modified polyamide emulsion is 20-40 wt%.
6. The method for preparing a breathable fabric according to claim 4, characterized in that, The mass ratio of the alkyl glycoside, the hexadecyltrimethylammonium bromide, the 2-ethylhexyl acrylate, and the ethylene glycol dimethacrylate is 0.1-0.2:0.2-0.4:4-5:0.3-0.7, and the mass ratio of the maleic anhydride, the polyetheramine ED600, the adipic acid, the hexamethylenediamine, the low molecular weight polyethylene glycol, and the amino silicone oil is 9-11:28-32:7-8:5-7:3-8:8-12.
7. The method for preparing a breathable fabric according to claim 1, characterized in that, The finishing process involves a liquid yield of 80-95%, the drying temperature is 70-100℃, and the setting temperature is 150-180℃ for 1-5 minutes.
8. The method for preparing a breathable fabric according to claim 1, characterized in that, The sizing solution is a polyvinyl alcohol sizing solution or a polyacrylate sizing solution with a solid content of 5-15 wt%, the desizing solution is a caustic soda aqueous solution, and the desizing treatment is performed at a temperature of 60-100℃, a time of 30-80 min, and a caustic soda concentration of 5-60 g / L.
9. A breathable fabric, characterized in that, It is prepared by any one of the preparation methods described in claims 1-8.