Air-permeable and moisture-permeable antibacterial polyester fabric and preparation process thereof

Abstract

The present application relates to the technical field of layered fabric, and particularly relates to a breathable and moisture-permeable antibacterial polyester fabric and a preparation process thereof.The breathable and moisture-permeable antibacterial polyester fabric comprises: a polyester fabric and a loaded cotton fabric attached to both sides of the polyester fabric by an adhesive agent; the mass ratio of the polyester fabric to the loaded cotton fabric is 10-20:10-20; the thickness of the polyester fabric is 0.25-0.3 mm, the polyester fabric is knitted by warp yarn and weft yarn, the density of the warp yarn is 60-70 roots / 10 cm, and the density of the weft yarn is 30-40 roots / 10 cm; and the adhesive agent is a water-based polyurethane adhesive agent.The preparation process has mild conditions, effectively reduces damage to the fiber structure, helps to maintain the inherent high strength and wear resistance of the polyester, the obtained polyester fabric has excellent breathability, moisture permeability and antibacterial performance, ensures the durability and reliability in use, and has the potential for industrial production.

Description

Technical Field

[0001] This invention relates to the field of layered fabric technology, and in particular to a breathable, moisture-permeable, and antibacterial polyester fabric and its preparation process. Background Technology

[0002] As the basic material for clothing and other textiles, the properties of fabric directly determine the comfort and functionality of the final product. Polyester, due to its excellent mechanical properties such as high tensile strength, good abrasion resistance, and resistance to deformation, has become one of the most widely used synthetic fibers in the modern textile industry.

[0003] However, the lack of hydrophilic groups in polyester macromolecules results in poor moisture absorption and breathability, making it difficult for sweat to evaporate quickly and leading to a stuffy and sticky feeling when worn. Furthermore, polyester itself lacks antibacterial properties, making it prone to bacterial growth in humid and hot environments. This can not only produce odors but also potentially cause skin allergies or infections. These issues severely limit the application of polyester fabrics in scenarios requiring high comfort and hygiene.

[0004] While the wettability of polyester can be improved through chemical grafting or physical etching, these methods often struggle to balance hydrophilicity and mechanical properties. Excessive introduction of hydrophilic groups can lead to decreased fiber strength or dyeing difficulties, while over-etching can damage fiber integrity. Regarding antibacterial properties, although nano-silver ions have broad-spectrum antibacterial effects, their dispersion stability in polyester is poor, making them prone to washing and resulting in insufficient durability. Natural antibacterial agents, while highly safe, suffer from poor high-temperature resistance and short-lasting effects.

[0005] Therefore, developing a polyester fabric that can optimize breathability, moisture permeability and antibacterial properties, achieve long-lasting antibacterial properties without sacrificing breathability, and prevent functional components from rapidly failing during washing or use, is of great practical significance for expanding the application of polyester fabrics in high value-added fields. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a breathable, moisture-permeable, and antibacterial polyester fabric and its preparation process.

[0007] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric adhered to both sides of the polyester fabric by an adhesive; the mass ratio of the polyester fabric to the cotton backing fabric is 10-20:10-20; the polyester fabric has a thickness of 0.25-0.3mm and is woven with warp and weft twill weave, with a warp density of 60-70 threads / 10cm and a weft density of 30-40 threads / 10cm; the adhesive is a water-based polyurethane adhesive.

[0008] Preferably, the warp yarn of the polyester fabric is polyester filament, and the weft yarn is bamboo charcoal fiber filament.

[0009] Preferably, the raw materials for the cotton fabric include, by weight, 5-10 parts cotton fabric, 1-5 parts ionic liquid, 1-2 parts silane coupling agent, 5-15 parts antibacterial microcapsule particles, and 1-2 parts first emulsifier.

[0010] More preferably, the cotton fabric is 0.3-0.35mm thick and is made of plain weave with warp and weft yarns interwoven together. The density of the warp yarns is 70-75 threads / 10cm and the density of the weft yarns is 55-60 threads / 10cm.

[0011] More preferably, the silane coupling agent is γ-aminopropyltriethoxysilane.

[0012] More preferably, the ionic liquid is a 1-ethyl-3-methylimidazolium acetate ionic liquid.

[0013] More preferably, the first emulsifier is fatty alcohol polyoxyethylene ether.

[0014] More preferably, the antibacterial microcapsule particles are prepared by the following steps: hyperbranched polylysine, sodium alginate, gum arabic, and gelatin are added to water and stirred evenly at 60-70℃ to obtain a wall material; plant essential oil, a second emulsifier, and caprylic / capric glyceride are mixed and stirred evenly at 60-70℃, and added dropwise to the stirred wall material; the pH of the system is adjusted to 4-5, emulsified for 5-10 min, homogenized at 30-45 MPa 1-3 times, cooled to 1-5℃ and kept warm for 1-2 h, the system is adjusted to neutral, and spray dried.

[0015] Specifically, the mass ratio of hyperbranched polylysine, sodium alginate, gum arabic, gelatin, plant essential oil, secondary emulsifier, and caprylic / capric glyceride is 1-5:1-4:1-2:1-2:1-5:1-2:30-40.

[0016] Specifically, the plant essential oil is tea tree oil.

[0017] Specifically, the second emulsifier is Tween 80.

[0018] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0019] S1. Add cotton fabric and ionic liquid to deionized water (mass ratio of ionic liquid to deionized water is 1-5:50-100), sonicate at 50-70℃ for 10-30 min, filter, wash, and vacuum dry; place the product and silane coupling agent in ethanol solution, sonicate at 50-60℃ for 1-2 h, filter, wash until neutral, and heat dry to obtain pretreated cotton fabric.

[0020] The heating and drying temperature is 100-110℃;

[0021] S2. Add the antibacterial microcapsule particles and the first emulsifier to water and stir evenly. Spray the mixture evenly onto both sides of the pretreated cotton fabric and let it stand at 60-80℃ for 2-6 hours to obtain the loaded cotton fabric.

[0022] S3. Apply adhesive evenly to both sides of the polyester fabric, then attach the load-bearing cotton fabric to both sides, press initially at 0.1-0.15MPa for 1-3 minutes, dry at 50-70℃ for 1-2 hours, and cure at 100-120℃ for 2-4 minutes.

[0023] Preferably, in step S2, the amount of pretreated cotton fabric sprayed on one side is 10-15 g / m². 2 .

[0024] Preferably, in step S3, the amount of adhesive applied to one side is 20-25 g / m. 2 .

[0025] Compared with existing technologies, the present invention has the following advantages:

[0026] This invention combines polyester fabric with cotton fabric modified by ionic liquid and silane coupling agent. This not only optimizes the fabric's microstructure, but also the ionic liquid pretreatment and the introduction of silane coupling agent effectively enhance the activity, surface roughness, and accessibility of the cotton fiber surface, which is beneficial for the subsequent fixation of antibacterial microcapsule particles. In particular, γ-aminopropyltriethoxysilane can form a strong bond with cotton fibers and subsequent microcapsule particles, effectively enhancing the binding strength of the antibacterial microcapsule particles.

[0027] This invention combines the strength of polyester with the breathability and moisture permeability of cotton fabric in a composite structure. With a reasonable coating and pressing process, the hygroscopic properties of the fiber material are used to form a moisture outlet channel. The hyperbranched polylysine molecular structure in the antibacterial microcapsule particles can not only complex with sodium alginate to effectively stabilize the microcapsule structure, but also enhance the binding strength with the pretreated cotton fabric through its surface active amino groups. It also achieves a synergistic antibacterial effect with the internal plant essential oils. This not only effectively slows down the release rate of antibacterial ingredients, but also gives the polyester fabric a long-lasting antibacterial ability, overcoming the shortcomings of short action period of natural antibacterial agents and easy shedding of nano silver ions.

[0028] The preparation process of this invention is mild, effectively reducing damage to the fiber structure and helping to maintain the inherent high strength and abrasion resistance of polyester. The resulting polyester fabric has excellent breathability, moisture permeability and antibacterial properties, while ensuring its durability and reliability, and has the potential for industrial production. Attached Figure Description

[0029] Figure 1 This is a comparison chart of the antibacterial rates of the polyester fabrics obtained in Example 5 and Comparative Examples 1-2.

[0030] Figure 2This is a comparison diagram of the air permeability of the polyester fabrics obtained in Example 5 and Comparative Examples 1-2.

[0031] Figure 3 This is a comparison chart of the water vapor transmission rate and wet resistance of the polyester fabrics obtained in Example 5 and Comparative Examples 1-2. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to specific embodiments. The given embodiments are merely illustrative of the invention and not intended to limit its scope. The embodiments provided below can serve as a guide for further improvements by those skilled in the art and do not constitute a limitation on the invention in any way.

[0033] Unless otherwise specified, the experimental methods used in the following examples are conventional methods, performed according to the techniques or conditions described in the literature in this field or according to the product instructions. Unless otherwise specified, the materials and reagents used in the following examples are commercially available.

[0034] The polyester fabric used below has a thickness of 0.28mm, uses 120D / 144F polyester yarn as warp yarn and 80D bamboo charcoal fiber yarn as weft yarn; it is woven in a twill weave with warp and weft yarns, with a warp yarn density of 65 ends / 10cm and a weft yarn density of 35 ends / 10cm.

[0035] The cotton fabric used below is 0.33mm thick and is made of plain weave with warp and weft yarns. The warp yarn density is 72 threads / 10cm and the weft yarn density is 57 threads / 10cm.

[0036] The water-based polyurethane adhesives used below are from Covestro, brand name Dispercoll® U54, with a solids content of 50±1%. The hyperbranched polylysine used below is from Weihai Mouyuan Molecular New Materials Co., Ltd. The tea tree oil used below is from Jiangsu Mousi Biotechnology Co., Ltd.

[0037] Example 1

[0038] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric adhered to both sides of the polyester fabric by a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 1:2.

[0039] The raw materials for the cotton-loaded fabric include: 5g cotton fabric, 1g 1-ethyl-3-methylimidazolium acetate ionic liquid, 1g γ-aminopropyltriethoxysilane, 5g antibacterial microcapsule particles, and 1g fatty alcohol polyoxyethylene ether.

[0040] The antibacterial microcapsule particles were prepared using the following steps: 1g of hyperbranched polylysine, 1g of sodium alginate, 1g of gum arabic, and 1g of gelatin were added to 50g of deionized water and stirred evenly at 60℃ to obtain a wall material; 1g of tea tree oil, 1g of Tween 80, and 30g of caprylic / capric glyceride were mixed and stirred evenly at 60℃, and then added dropwise to the stirred wall material. The pH was adjusted to 4-5 with acetic acid, emulsified at 5000r / min for 5min, homogenized once at 30MPa pressure, cooled to 1℃ and kept at that temperature for 1h, and the system was adjusted to neutral and then spray-dried.

[0041] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0042] S1. Cotton fabric and 1-ethyl-3-methylimidazolium acetate ionic liquid were added to 50g of deionized water and ultrasonically treated at 50℃ for 10min at an ultrasonic frequency of 70kHz. The mixture was then filtered, washed, and vacuum dried. The product was then placed in 50g of ethanol solution with γ-aminopropyltriethoxysilane and ultrasonically treated at 50℃ for 1h at an ultrasonic frequency of 60kHz. The mixture was then filtered, washed with water until neutral, and dried at 100℃ to obtain the pretreated cotton fabric.

[0043] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 30g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 10g / m². 2 After standing at 60℃ for 2 hours, the loaded cotton fabric is obtained.

[0044] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 20g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 1 minute at a pressing pressure of 0.1 MPa, dried at 50℃ for 1 hour, and cured at 100℃ for 2 minutes.

[0045] Example 2

[0046] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric bonded to both sides of the polyester fabric using a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 2:1.

[0047] The raw materials for the cotton-loaded fabric include: 10g cotton fabric, 5g 1-ethyl-3-methylimidazolium acetate ionic liquid, 2g γ-aminopropyltriethoxysilane, 15g antibacterial microcapsule particles, and 2g fatty alcohol polyoxyethylene ether.

[0048] The antibacterial microcapsule particles were prepared using the following steps: 5g of hyperbranched polylysine, 4g of sodium alginate, 2g of gum arabic, and 2g of gelatin were added to 70g of deionized water and stirred evenly at 70℃ to obtain a wall material; 5g of tea tree oil, 2g of Tween 80, and 40g of caprylic / capric glyceride were mixed and stirred evenly at 70℃, and then added dropwise to the stirred wall material. The pH was adjusted to 4-5 with acetic acid, emulsified at 10000r / min for 10min, homogenized three times at 45MPa pressure, cooled to 5℃ and kept at that temperature for 2h, and the system was adjusted to neutral and then spray-dried.

[0049] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0050] S1. Cotton fabric and 1-ethyl-3-methylimidazolium acetate ionic liquid were added to 100g of deionized water and ultrasonically treated at 70℃ for 30min at an ultrasonic frequency of 80kHz. The mixture was then filtered, washed, and vacuum dried. The product was then placed in 80g of ethanol solution with γ-aminopropyltriethoxysilane and ultrasonically treated at 60℃ for 2h at an ultrasonic frequency of 70kHz. The mixture was then filtered, washed with water until neutral, and dried at 110℃ to obtain the pretreated cotton fabric.

[0051] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 70g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 15g / m². 2 After standing at 80℃ for 6 hours, the loaded cotton fabric is obtained.

[0052] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 25g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 3 minutes at a pressing pressure of 0.15 MPa. It is then dried at 70℃ for 2 hours and cured at 120℃ for 4 minutes.

[0053] Example 3

[0054] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric adhered to both sides of the polyester fabric by a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 2:3.

[0055] The raw materials for the cotton-loaded fabric include: 7g cotton fabric, 4g 1-ethyl-3-methylimidazolium acetate ionic liquid, 1.2g γ-aminopropyltriethoxysilane, 12g antibacterial microcapsule particles, and 1.5g fatty alcohol polyoxyethylene ether.

[0056] The antibacterial microcapsule particles were prepared using the following steps: 2g of hyperbranched polylysine, 3g of sodium alginate, 1.2g of gum arabic, and 1.8g of gelatin were added to 55g of deionized water and stirred evenly at 68℃ to obtain a wall material; 2g of tea tree oil, 1.5g of Tween 80, and 37g of caprylic / capric glyceride were mixed and stirred evenly at 62℃, and then added dropwise to the stirred wall material. The pH was adjusted to 4-5 with acetic acid, emulsified at 9000r / min for 7min, homogenized twice at 40MPa pressure, cooled to 2℃ and kept at that temperature for 100min, the system was adjusted to neutral, and then spray-dried.

[0057] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0058] S1. Cotton fabric and 1-ethyl-3-methylimidazolium acetate ionic liquid were added to 70g of deionized water and ultrasonically treated at 65℃ for 15min at an ultrasonic frequency of 77kHz. The mixture was then filtered, washed, and vacuum dried. The product was then placed in 60g of ethanol solution with γ-aminopropyltriethoxysilane and ultrasonically treated at 52℃ for 100min at an ultrasonic frequency of 62kHz. The mixture was then filtered, washed with water until neutral, and dried at 105℃ to obtain the pretreated cotton fabric.

[0059] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 60g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 11g / m². 2 After standing at 75℃ for 3 hours, the loaded cotton fabric is obtained.

[0060] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 23g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 1.5 minutes at a pressing pressure of 0.13 MPa, dried at 55℃ for 100 minutes, and cured at 105℃ for 3 minutes.

[0061] Example 4

[0062] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric bonded to both sides of the polyester fabric using a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 3:2.

[0063] The raw materials for the cotton-loaded fabric include: 9g cotton fabric, 2g 1-ethyl-3-methylimidazolium acetate ionic liquid, 1.8g γ-aminopropyltriethoxysilane, 8g antibacterial microcapsule particles, and 1.5g fatty alcohol polyoxyethylene ether.

[0064] The antibacterial microcapsule particles were prepared using the following steps: 4g of hyperbranched polylysine, 2g of sodium alginate, 1.8g of gum arabic, and 1.2g of gelatin were added to 65g of deionized water and stirred evenly at 62℃ to obtain a wall material; 4g of tea tree oil, 1.5g of Tween 80, and 33g of caprylic / capric glyceride were mixed and stirred evenly at 68℃, then added dropwise to the stirred wall material; the pH was adjusted to 4-5 with acetic acid; emulsification was carried out at 7000r / min for 9min; homogenization was performed twice at a pressure of 35MPa; the mixture was cooled to 4℃ and kept at that temperature for 80min; the system was adjusted to neutral; and then spray-dried.

[0065] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0066] S1. Cotton fabric and 1-ethyl-3-methylimidazolium acetate ionic liquid were added to 90g of deionized water and ultrasonically treated at 55℃ for 25min at an ultrasonic frequency of 73kHz. The mixture was then filtered, washed, and vacuum dried. The product was then placed in 70g of ethanol solution with γ-aminopropyltriethoxysilane and ultrasonically treated at 58℃ for 80min at an ultrasonic frequency of 68kHz. The mixture was then filtered, washed with water until neutral, and dried at 105℃ to obtain the pretreated cotton fabric.

[0067] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 40g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 13g / m². 2 After standing at 65℃ for 5 hours, the loaded cotton fabric is obtained.

[0068] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 21g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 2.5 minutes at a pressing pressure of 0.11 MPa, dried at 65℃ for 80 minutes, and cured at 115℃ for 3 minutes.

[0069] Example 5

[0070] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric adhered to both sides of the polyester fabric by a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 1:1.

[0071] The raw materials for the cotton-loaded fabric include: 8g of cotton fabric, 3g of 1-ethyl-3-methylimidazolium acetate ionic liquid, 1.5g of γ-aminopropyltriethoxysilane, 10g of antibacterial microcapsule particles, and 1.5g of fatty alcohol polyoxyethylene ether.

[0072] The antibacterial microcapsule particles were prepared using the following steps: 3g of hyperbranched polylysine, 2.5g of sodium alginate, 1.5g of gum arabic, and 1.5g of gelatin were added to 60g of deionized water and stirred evenly at 65℃ to obtain a wall material; 3g of tea tree oil, 1.5g of Tween 80, and 35g of caprylic / capric glyceride were mixed and stirred evenly at 65℃, then added dropwise to the stirred wall material; the pH was adjusted to 4-5 with acetic acid; emulsification was carried out at 8000r / min for 8min; homogenization was carried out twice at a pressure of 38MPa; the mixture was cooled to 3℃ and kept at that temperature for 90min; the system was adjusted to neutral; and then spray-dried.

[0073] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0074] S1. Cotton fabric and 1-ethyl-3-methylimidazolium acetate ionic liquid were added to 80g of deionized water and ultrasonically treated at 60℃ for 20min at an ultrasonic frequency of 75kHz. The mixture was then filtered, washed, and vacuum dried. The product was then placed in 65g of ethanol solution with γ-aminopropyltriethoxysilane and ultrasonically treated at 55℃ for 90min at an ultrasonic frequency of 65kHz. The mixture was then filtered, washed with water until neutral, and dried at 105℃ to constant weight to obtain pretreated cotton fabric.

[0075] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 50g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 12g / m². 2 After standing at 70℃ for 4 hours, the loaded cotton fabric is obtained.

[0076] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 22g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 2 minutes at a pressing pressure of 0.12 MPa, dried at 60℃ for 90 minutes, and cured at 110℃ for 3 minutes.

[0077] Comparative Example 1

[0078] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric adhered to both sides of the polyester fabric by a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 1:1.

[0079] The raw materials for the cotton-loaded fabric include: 11g cotton fabric, 1.5g γ-aminopropyltriethoxysilane, 10g antibacterial microcapsule particles, and 1.5g fatty alcohol polyoxyethylene ether.

[0080] The antibacterial microcapsule particles were prepared using the following steps: 3g of hyperbranched polylysine, 2.5g of sodium alginate, 1.5g of gum arabic, and 1.5g of gelatin were added to 60g of deionized water and stirred evenly at 65℃ to obtain a wall material; 3g of tea tree oil, 1.5g of Tween 80, and 35g of caprylic / capric glyceride were mixed and stirred evenly at 65℃, then added dropwise to the stirred wall material; the pH was adjusted to 4-5 with acetic acid; emulsification was carried out at 8000r / min for 8min; homogenization was carried out twice at a pressure of 38MPa; the mixture was cooled to 3℃ and kept at that temperature for 90min; the system was adjusted to neutral; and then spray-dried.

[0081] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0082] S1. Add the cotton fabric to 80g of deionized water, sonicate at 60℃ for 20min at an ultrasonic frequency of 75kHz, filter, wash, and vacuum dry; place the product and γ-aminopropyltriethoxysilane in 65g of ethanol solution, sonicate at 55℃ for 90min at an ultrasonic frequency of 65kHz, filter, wash with water until neutral, and dry at 105℃ to constant weight to obtain the pretreated cotton fabric.

[0083] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 50g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 12g / m². 2 After standing at 70℃ for 4 hours, the loaded cotton fabric is obtained.

[0084] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 22g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 2 minutes at a pressing pressure of 0.12 MPa, dried at 60℃ for 90 minutes, and cured at 110℃ for 3 minutes.

[0085] Comparative Example 2

[0086] A breathable, moisture-wicking, and antibacterial polyester fabric includes: a polyester fabric and a cotton backing fabric adhered to both sides of the polyester fabric by a water-based polyurethane adhesive. The mass ratio of the polyester fabric to the cotton backing fabric is 1:1.

[0087] The raw materials for the cotton-loaded fabric include: 8g of cotton fabric, 3g of 1-ethyl-3-methylimidazolium acetate ionic liquid, 1.5g of γ-aminopropyltriethoxysilane, 10g of antibacterial microcapsule particles, and 1.5g of fatty alcohol polyoxyethylene ether.

[0088] The antibacterial microcapsule particles were prepared using the following steps: 2.5g sodium alginate, 1.5g gum arabic, and 1.5g gelatin were added to 60g deionized water and stirred evenly at 65℃ to obtain a wall material; 6g tea tree oil, 1.5g Tween 80, and 35g caprylic / capric triglyceride were mixed and stirred evenly at 65℃, and then added dropwise to the stirred wall material. The pH was adjusted to 4-5 with acetic acid, emulsified at 8000r / min for 8min, homogenized twice at 38MPa pressure, cooled to 3℃ and kept at that temperature for 90min, and the system was adjusted to neutral and then spray-dried.

[0089] The preparation process of the above-mentioned breathable, moisture-permeable, and antibacterial polyester fabric includes the following steps:

[0090] S1. Cotton fabric and 1-ethyl-3-methylimidazolium acetate ionic liquid were added to 80g of deionized water and ultrasonically treated at 60℃ for 20min at an ultrasonic frequency of 75kHz. The mixture was then filtered, washed, and vacuum dried. The product was then placed in 65g of ethanol solution with γ-aminopropyltriethoxysilane and ultrasonically treated at 55℃ for 90min at an ultrasonic frequency of 65kHz. The mixture was then filtered, washed with water until neutral, and dried at 105℃ to constant weight to obtain pretreated cotton fabric.

[0091] S2. Add the antibacterial microcapsule particles and fatty alcohol polyoxyethylene ether to 50g of deionized water and stir well. Spray evenly onto both sides of the pretreated cotton fabric, with a single-side spraying amount of 12g / m². 2 After standing at 70℃ for 4 hours, the loaded cotton fabric is obtained.

[0092] S3. Apply water-based polyurethane adhesive evenly to both sides of the polyester fabric in a mesh pattern, with a coating amount of 22g / m² on each side. 2 Then, load cotton fabric is bonded to both sides of the polyester fabric, and initially pressed by a roller press for 2 minutes at a pressing pressure of 0.12 MPa, dried at 60℃ for 90 minutes, and cured at 110℃ for 3 minutes.

[0093] The antibacterial properties of the polyester fabrics obtained in Example 5 and Comparative Examples 1-2 were tested according to WS / T 650-2019 "Evaluation Method for Antibacterial and Bacteriostatic Effects", with Staphylococcus aureus (ATCC 6538) as the test strain. The antibacterial properties of each group of polyester fabrics were measured again after washing them 5 times.

[0094] like Figure 1 As shown, the polyester fabric obtained in Example 5 had the highest antibacterial rate before and after washing, which was significantly better than the comparative example.

[0095] The air permeability of the polyester fabrics (15cm × 15cm in size) obtained in Example 5 and Comparative Examples 1-2 was determined using an air permeability tester. The test temperature was 20±2℃, the relative humidity was 65±2%, and the test pressure difference was 100Pa.

[0096] like Figure 2 As shown, the polyester fabric obtained in Comparative Example 1 has the highest air permeability, but the difference from Example 5 is small and lacks significant difference. The polyester fabrics obtained in Example 5 and Comparative Example 1 have significantly higher air permeability than those in Comparative Example 2.

[0097] The water vapor transmission rate and moisture resistance of the polyester fabrics (10cm × 10cm) obtained in Example 5 and Comparative Examples 1-2 were measured using a dynamic moisture resistance tester. The test temperature was 35℃, the relative humidity was 50±2%, and the test time was 24h.

[0098] like Figure 3 As shown, the polyester fabric obtained in Example 5 has the highest water vapor permeability and the lowest moisture resistance, which is significantly better than the comparative example.

[0099] The present invention has been described in detail above. Those skilled in the art will recognize that the invention can be practiced in a wide range of ways with equivalent parameters, concentrations, and conditions without departing from its spirit and scope, and without requiring unnecessary experiments. While specific embodiments have been provided, it should be understood that further modifications can be made to the invention. In summary, according to the principles of the invention, this application is intended to include any changes, uses, or improvements to the invention, including changes made using conventional techniques known in the art that depart from the scope disclosed herein.

Claims

1. A breathable, moisture-permeable, and antibacterial polyester fabric, characterized in that, include: Polyester fabric, and a load-bearing cotton fabric bonded to both sides of the polyester fabric by adhesive. The mass ratio of polyester fabric to cotton-loaded fabric is 10-20:10-20; The polyester fabric is 0.25-0.3mm thick and is made of twill weave with warp and weft yarns. The warp yarn density is 60-70 threads / 10cm and the weft yarn density is 30-40 threads / 10cm. The adhesive is a water-based polyurethane adhesive; The raw materials for the cotton fabric include, by weight, 5-10 parts cotton fabric, 1-5 parts ionic liquid, 1-2 parts silane coupling agent, 5-15 parts antibacterial microcapsule particles, and 1-2 parts primary emulsifier. The ionic liquid is a 1-ethyl-3-methylimidazolium acetate ionic liquid; The antibacterial microcapsule particles are prepared using the following steps: Hyperbranched polylysine, sodium alginate, gum arabic, and gelatin are added to water and stirred evenly at 60-70℃ to obtain a wall material; Plant essential oil, a second emulsifier, and caprylic / capric glyceride are mixed and stirred evenly at 60-70℃, then added dropwise to the stirred wall material, the pH of the system is adjusted to 4-5, emulsified for 5-10 minutes, homogenized at 30-45 MPa 1-3 times, cooled to 1-5℃ and kept at that temperature for 1-2 hours, the system is adjusted to neutral, and then spray-dried.

2. The breathable, moisture-permeable, and antibacterial polyester fabric according to claim 1, characterized in that, The warp yarn of the polyester fabric is polyester filament, and the weft yarn is bamboo charcoal fiber filament.

3. The breathable, moisture-permeable, and antibacterial polyester fabric according to claim 1, characterized in that, The cotton fabric is 0.3-0.35mm thick and is made of plain weave with warp and weft yarns. The warp yarn density is 70-75 threads / 10cm and the weft yarn density is 55-60 threads / 10cm.

4. The breathable, moisture-permeable, and antibacterial polyester fabric according to claim 1, characterized in that, The silane coupling agent is γ-aminopropyltriethoxysilane.

5. The breathable, moisture-permeable, and antibacterial polyester fabric according to claim 1, characterized in that, The mass ratio of hyperbranched polylysine, sodium alginate, gum arabic, gelatin, plant essential oil, secondary emulsifier, and caprylic / capric glyceride is 1-5:1-4:1-2:1-2:1-5:1-2:30-40.

6. The breathable, moisture-permeable, and antibacterial polyester fabric according to claim 1, characterized in that, The plant essential oil is tea tree oil; the second emulsifier is Tween 80.

7. A process for preparing the breathable, moisture-permeable, and antibacterial polyester fabric as described in any one of claims 1-6, characterized in that, Includes the following steps: S1. Add cotton fabric and ionic liquid to deionized water, sonicate at 50-70℃ for 10-30 min, filter, wash, and vacuum dry; place the product and silane coupling agent in ethanol solution, sonicate at 50-60℃ for 1-2 h, filter, wash until neutral, and heat dry to obtain pretreated cotton fabric. S2. Add the antibacterial microcapsule particles and the first emulsifier to water and stir evenly. Spray the mixture evenly onto both sides of the pretreated cotton fabric and let it stand at 60-80℃ for 2-6 hours to obtain the loaded cotton fabric. S3. Apply adhesive evenly to both sides of the polyester fabric, then attach the load-bearing cotton fabric to both sides, press initially at 0.1-0.15MPa for 1-3 minutes, dry at 50-70℃ for 1-2 hours, and cure at 100-120℃ for 2-4 minutes.

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