Moisture-absorbing and quick-drying polyester fiber, fabric and preparation process thereof

Abstract

The invention relates to the technical field of fiber fabrics, and particularly discloses a moisture-absorbing and quick-drying polyester fiber, a fabric and a preparation process of the moisture-absorbing and quick-drying polyester fiber, the moisture-absorbing and quick-drying polyester fiber fabric is obtained by dipping a polyester fiber fabric in a finishing liquid, and the polyester fiber fabric is obtained by knitting mixed yarns; the blended yarn is composed of moisture-absorbing and quick-drying polyester fibers, cotton fibers and spandex fibers according to the mass ratio of 100: (25-42): (5-12), and the moisture-absorbing and quick-drying polyester fibers are obtained by melt blending and spinning of polyester chips and modified composite particles. The modified composite particles are obtained by blending alkenylated titanium dioxide coated silicon dioxide composite particles, maleic anhydride and butenedioic acid mono-esterification-beta-cyclodextrin, the prepared fabric has good hygroscopicity, sweat can be rapidly captured, rapid diffusion and evaporation are achieved through a moisture guiding channel in the fiber, collaborative optimization of moisture absorption, rapid drying and washing fastness is achieved, and the fabric has the good moisture absorption effect. Meanwhile, the fabric is good in comfort and durability and excellent in mechanical property.

Description

Technical Field

[0001] This invention relates to the field of fiber fabric technology, specifically to a moisture-wicking and quick-drying polyester fiber, fabric, and its preparation process. Background Technology

[0002] Polyester fiber (polyester) is widely used in the textile industry due to its high strength, good elasticity, and good wrinkle resistance. However, conventional polyester fibers lack hydrophilic groups in their macromolecular chains, resulting in poor moisture absorption and breathability. This leads to a stuffy and sticky feeling when worn, easily accumulating sweat and generating static electricity, resulting in poor comfort. To overcome this deficiency, researchers have developed various moisture-wicking and quick-drying polyester fibers in recent years, mainly through chemical and physical modifications. Chemical modifications include introducing hydrophilic groups and adding inorganic nanoparticles; physical modifications include irregular cross-section design, microporous structure, and surface roughening treatment.

[0003] Chinese patent application CN101792578A discloses a polyester fiber and its fabric with wetting, moisture-wicking, and quick-drying functions. The polyester fiber is obtained by blending copolyester masterbatch with conventional polyester chips and spinning. The fiber cross-section is irregular and has micropores, with longitudinal grooves and micro-pit structures on the sides. It is blended with natural fibers to form various fabrics. This fabric has excellent sweat wetting, moisture-wicking, and quick-drying functions, improving wearing comfort. However, the nano-sized inorganic powder added to the copolyester masterbatch is prone to agglomeration, affecting spinning stability and fiber strength. Moreover, the inorganic powder is easy to fall off after repeated washing, resulting in poor functional durability. Chinese patent application CN109338502A discloses a moisture-wicking and quick-drying polyester fiber fabric and its preparation method. The method uses transesterification to polymerize terephthalic acid, polyvinyl alcohol, and quaternary ammonium salt modified diol monomers, while adding titanium dioxide matting agent to improve the hydrophilicity of the fiber fabric. This moisture-wicking and quick-drying polyester has the effect of wicking away moisture and drying quickly, which improves wearing comfort. However, the quaternary ammonium salt is easy to decompose during high-temperature spinning, and the titanium dioxide has poor dispersibility, which affects the stability and durability of the fiber.

[0004] Therefore, it is of great significance to develop polyester fiber fabrics with moisture-wicking, quick-drying and long-lasting properties. Summary of the Invention

[0005] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, the present invention provides a moisture-wicking and quick-drying polyester fiber, fabric and its preparation process, which solves the problem of poor moisture absorption and breathability of polyester fiber fabric.

[0006] (II) Technical Solution: To achieve the above objectives, this invention discloses a moisture-wicking and quick-drying polyester fiber fabric, which is obtained by impregnating polyester fiber fabric in a finishing solution, and is knitted from a blended yarn; the blended yarn is composed of moisture-wicking and quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:(25-42):(5-12); the preparation method of the moisture-wicking and quick-drying polyester fiber includes the following steps: A1. The alkenylated titanium dioxide-coated silica composite particles were ultrasonically dispersed in xylene, and maleic anhydride, butenedioic acid monoesterified β-cyclodextrin, and initiator were added. The mixture was heated in a nitrogen atmosphere to carry out the reaction. After the reaction was completed, the mixture was filtered, washed with acetone, and dried to obtain the modified composite particles. A2. Polyester chips and modified composite particles are melt-blended, extruded and granulated, and then spun to obtain moisture-wicking and quick-drying polyester fibers.

[0007] As a further aspect of the present invention: the addition ratio of alkenylated titanium dioxide-coated silica composite particles, xylene, maleic anhydride, butenedioic acid monoesterified β-cyclodextrin, and initiator in A1 is 10g: 500-800mL: 2-3g: 8-15g: 0.2-0.3g.

[0008] As a further aspect of the present invention: the reaction temperature in A1 is 75-85℃, and the reaction time is 4-6h.

[0009] As a further aspect of the present invention: the initiator in A1 is benzoyl peroxide.

[0010] As a further aspect of the present invention: the addition ratio of polyester chips and modified composite particles in A2 is 100g:1-5g, the melt blending temperature is 265-295℃, the rotation speed is 160-180r / min, and during the spinning process, the spinning temperature is 260-280℃ and the winding frequency is 110-115Hz.

[0011] As a further aspect of the present invention, the preparation method of the alkenylated titanium dioxide-coated silica composite particles in A1 includes the following steps: B1. Disperse nano-silica in anhydrous ethanol by ultrasonication, mix evenly, heat, add hydrochloric acid, adjust the pH to 2-3, then add deionized water and tetrabutyl titanate, stir and mix, and react. After the reaction is completed, centrifuge, wash with deionized water and anhydrous ethanol, dry, and heat treat to obtain titanium dioxide-coated silica composite particles. B2. Activate the titanium dioxide-coated silica composite particles in a vacuum activation chamber for 12 hours, then ultrasonically disperse them in an ethanol solution. After mixing evenly, add ammonia to adjust the pH to 9-10, and then add 3-aminopropyltriethoxysilane. The addition ratio of titanium dioxide-coated silica composite particles, ethanol solution, and 3-aminopropyltriethoxysilane is 1g:80-100mL:0.2-0.5mL. Heat the mixture under a nitrogen atmosphere, stir and mix to allow the reaction to occur. The reaction temperature is 65-75℃, and the reaction time is 12-15 hours. After the reaction is completed, centrifuge, wash with anhydrous ethanol, and dry to obtain aminated titanium dioxide-coated silica composite particles. B3. The aminated titanium dioxide-coated silica composite particles were ultrasonically dispersed in toluene, anhydrous potassium carbonate was added, and the mixture was ultrasonically dispersed at 0-5℃. Acryloyl chloride was then added, the temperature was raised, and the reaction was carried out. After the reaction was completed, the mixture was centrifuged, washed with toluene and anhydrous ethanol, and dried to obtain alkenylated titanium dioxide-coated silica composite particles.

[0012] As a further aspect of the present invention: the addition ratio of nano-silica, anhydrous ethanol, deionized water and tetrabutyl titanate in B1 is 1g:90-110mL:2-5mL:2-3mL.

[0013] As a further aspect of the present invention: the reaction temperature in B1 is 75-85°C, and the reaction time is 3-4 hours.

[0014] As a further aspect of the present invention: the heat treatment temperature in B1 is 580-650℃, and the heat treatment time is 1-2h.

[0015] As a further aspect of the present invention: the concentration of hydrochloric acid in B1 is 1 mol / L.

[0016] As a further aspect of the present invention: the ethanol solution in B2 is composed of anhydrous ethanol and deionized water in a volume ratio of 3:1.

[0017] As a further aspect of the present invention: the addition ratio of aminated titanium dioxide-coated silica composite particles, toluene, anhydrous potassium carbonate, and acryloyl chloride in B3 is 1g: 100-120mL: 0.18-0.22g: 1-1.2mL.

[0018] As a further aspect of the present invention: the reaction temperature in B3 is 55-65℃, and the reaction time is 12-15h.

[0019] As a further aspect of the present invention, the finishing solution is prepared as follows: deionized water, 1,2,3,4-butanetetracarboxylic acid, β-cyclodextrin, epoxy ammonium chloride, and dispersant are mixed evenly in an addition ratio of 80-95mL:3-8g:2-4g:0.5-1.2g:0.01-0.03g to obtain the finishing solution.

[0020] As a further aspect of the present invention: the dispersant in the finishing liquid is vinyl bis-stearamide.

[0021] A process for preparing a moisture-wicking and quick-drying polyester fiber fabric includes the following steps: Step 1: Blend moisture-wicking and quick-drying polyester fiber and cotton fiber to obtain outer yarn. Use spandex fiber as core yarn and combine it on a core-spun yarn machine. Wind the yarn to obtain mixed core-spun yarn. Knit the mixed yarn on a circular knitting machine to obtain polyester fiber fabric. Step 2: Immerse the polyester fiber fabric in the finishing solution. After treatment, dry it at 100-110℃ for 3-5 minutes, then dry it at 160-170℃ for 1-2 minutes. Wash it with deionized water for 10-15 minutes, and then dry it at 75-80℃ for 15-30 minutes to obtain the moisture-wicking and quick-drying polyester fiber fabric.

[0022] As a further aspect of the present invention: in step one, the cylinder diameter of the circular knitting machine is 34 inches, and the weight of the polyester fiber fabric is 165-205 g / m². 2 .

[0023] As a further aspect of the present invention: the cotton fiber in step one is selected from high-quality long-staple cotton.

[0024] As a further aspect of the present invention: the spandex fiber in step one has a specification of 40D.

[0025] As a further aspect of the present invention: in step two, the bath ratio for immersion is 1:12-15, the immersion temperature is 25-35℃, and the immersion time is 30-60 minutes.

[0026] (III) Beneficial Technical Effects: Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this invention, tetrabutyl titanate is hydrolyzed in an acidic ethanol solution to generate hydrated titanium dioxide, and a uniform titanium dioxide shell is formed on the surface of nano-silica through a condensation reaction. Heat treatment transforms amorphous titanium dioxide into anatase type, which improves stability. With nano-silica as the core, it can provide a huge specific surface area as a supporting framework to prevent titanium dioxide agglomeration. The hydroxyl groups on the surface of titanium dioxide provide abundant active sites for subsequent silane coupling reactions. 3-aminopropyltriethoxysilane modifies the titanium dioxide-coated silica composite particles to form a strong Si-O-Ti covalent bond. Amino groups are introduced on the surface of the composite particles. The amino groups undergo an amidation reaction with acryloyl chloride to introduce amide bonds. At the same time, alkenyl groups are introduced on the composite nanoparticles to obtain alkenylated titanium dioxide-coated silica composite particles, which avoids stress concentration caused by particle agglomeration. The composite particles have excellent mechanical properties and improve the breaking strength of fibers. (2) In this invention, the alkenylated titanium dioxide-coated silica composite particles have porous adsorption properties. Nano-silica has a rich pore structure and a large specific surface area, which can physically adsorb moisture through capillary action. Under the action of the initiator, the alkenylated titanium dioxide-coated silica composite particles, maleic anhydride, and butenedioic acid monoesterified β-cyclodextrin undergo a copolymerization reaction to obtain modified composite particles. The surface of the composite particles is grafted with hydrophilic groups, which further enhances the chemical adsorption capacity. β-cyclodextrin can physically encapsulate water molecules through van der Waals forces. The esterification modification of butenedioic acid gives the β-cyclodextrin derivative double bond activity, making the hydrophilic -COOH and -OH groups evenly distributed on the particle surface, providing active sites for subsequent binding with polyester and moisture absorption. The numerous hydroxyl groups on the outer wall of the β-cyclodextrin molecule provide strong hydrophilicity, and its internal cavity can further improve the moisture absorption efficiency of the matrix by encapsulating odor molecules in sweat through van der Waals forces. The modified composite particles are blended with polyester chips to achieve an organic-inorganic hybrid, transforming the hydrophobic polyester into a material with durable, highly efficient moisture-wicking and quick-drying properties, overcoming the shortcomings of traditional polyester fabrics such as stuffiness and easy sweating. Through chemical bonding, the hydrophilic components are firmly anchored to the fibers and fabric, rather than a simple physical coating, resulting in better durability and significantly better wash resistance than finishing techniques. (3) In this invention, maleic anhydride can undergo partial ring-opening esterification with the terminal hydroxyl groups of polyester, which greatly enhances the compatibility and bonding force between the modified particles and the polyester matrix, and can be uniformly and stably dispersed in the polyester fiber. Chemical bonding ensures that the functional particles will not easily fall off during processing or use, giving the fiber permanent moisture-wicking function. A water-guiding channel composed of hydrophilic segments is formed inside the fiber. In the finishing solution, 1,2,3,4-butanetetracarboxylic acid, as a polycarboxylic acid crosslinking agent, undergoes esterification reaction between its carboxyl groups and the hydroxyl groups on the fiber surface and the hydroxyl groups of β-cyclodextrin under high temperature baking, forming a strong three-dimensional crosslinking network on the fiber surface. The β-cyclodextrin in the finishing solution is fixed in the outer layer by the crosslinking network of 1,2,3,4-butanetetracarboxylic acid, avoiding uneven hydrophilic sites caused by β-cyclodextrin agglomeration, and further enhancing the hydrophilicity and odor adsorption capacity of the fabric surface. The epoxy groups on the epoxy ammonium chloride can react with fibers or 1,2,3,4-butanetetracarboxylic acid, introducing hydrophilic hydroxyl groups after ring opening. Furthermore, the quaternary ammonium salt structure can bring long-lasting antibacterial properties. The cross-linked network formed synergistically between raw materials in the finishing solution not only fixes the hydrophilic groups but also enhances the binding force between fibers, thereby simultaneously improving wash resistance and mechanical properties. (4) In this invention, the cotton fiber in the mixed yarn is natural cellulose, and the molecular chain contains a large number of -OH groups, which can adsorb moisture through hydrogen bonds. The natural crimp structure of cotton fiber and the linear structure of modified polyester intertwine, further enhancing the moisture absorption rate. Spandex fiber has excellent elasticity and, as the core yarn, can provide elastic recovery force, ensuring the elasticity of the fabric and avoiding the stuffy feeling caused by direct contact between spandex and the skin. The modified composite particles are uniformly dispersed in the polyester matrix, and microchannels are formed between the particles. Moisture can quickly diffuse from the inside of the fabric to the surface through the channels, avoiding retention in the fiber gaps. The moisture absorbed needs to quickly diffuse to the surface of the fabric and evaporate, avoiding the problems of stickiness and slow drying speed of traditional fabrics after moisture absorption. The prepared fabric has good moisture absorption, can quickly capture sweat, and quickly diffuse and evaporate through the moisture-conducting channels inside the fiber. Moreover, the moisture absorption and quick-drying effect is long-lasting, realizing the synergistic optimization of moisture absorption, quick drying and washability. At the same time, the fabric has good comfort, durability and excellent mechanical properties, realizing the functional upgrade of traditional polyester fabrics. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] Example 1 An alkenylated titanium dioxide-coated silica composite particle, the preparation method of which includes the following steps: B1. Disperse 1g of nano-silica ultrasonically into 90mL of anhydrous ethanol, mix well, heat, add 1mol / L hydrochloric acid to adjust the pH to 2, then add 2mL of deionized water and 2mL of tetrabutyl titanate, stir and mix, and react at 75℃ for 4h. After the reaction is complete, centrifuge, wash with deionized water and anhydrous ethanol, dry, and heat treat at 580℃ for 2h to obtain titanium dioxide-coated silica composite particles. B2. 1g of titanium dioxide-coated silica composite particles were activated in a vacuum activation chamber for 12h, and then ultrasonically dispersed into 80mL of ethanol solution, wherein the ethanol solution consisted of anhydrous ethanol and deionized water in a volume ratio of 3:1. After mixing evenly, ammonia water was added to adjust the pH value to 9, and then 0.2mL of 3-aminopropyltriethoxysilane was added. The temperature was raised, and the mixture was stirred and mixed under a nitrogen atmosphere to allow the reaction to occur. The reaction temperature was 65℃ and the reaction time was 15h. After the reaction was completed, the particles were centrifuged, washed with anhydrous ethanol, and dried to obtain aminated titanium dioxide-coated silica composite particles. B3. 1g of aminated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 100mL of toluene, 0.18g of anhydrous potassium carbonate was added, and the mixture was ultrasonically dispersed at 0℃. Then, 1mL of acryloyl chloride was added, and the mixture was heated to 55℃ for 15h. After the reaction was completed, the mixture was centrifuged, washed with toluene and anhydrous ethanol, and dried to obtain alkenylated titanium dioxide-coated silica composite particles.

[0029] Example 2 An alkenylated titanium dioxide-coated silica composite particle, the preparation method of which includes the following steps: B1. Disperse 1g of nano-silica ultrasonically into 100mL of anhydrous ethanol, mix well, heat, add 1mol / L hydrochloric acid to adjust the pH to 2.5, then add 4mL of deionized water and 2.5mL of tetrabutyl titanate, stir and mix, and react at 80℃ for 3.5h. After the reaction is complete, centrifuge, wash with deionized water and anhydrous ethanol, dry, and heat treat at 620℃ for 1.5h to obtain titanium dioxide-coated silica composite particles. B2. 1g of titanium dioxide-coated silica composite particles were activated in a vacuum activation chamber for 12h, and then ultrasonically dispersed into 90mL of ethanol solution, wherein the ethanol solution consisted of anhydrous ethanol and deionized water in a volume ratio of 3:1. After mixing evenly, ammonia water was added to adjust the pH value to 9.5, and then 0.4mL of 3-aminopropyltriethoxysilane was added. The mixture was heated and stirred under a nitrogen atmosphere to allow the reaction to occur. The reaction temperature was 70℃ and the reaction time was 14h. After the reaction was completed, the mixture was centrifuged, washed with anhydrous ethanol, and dried to obtain aminated titanium dioxide-coated silica composite particles. B3. 1g of aminated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 110mL of toluene, 0.2g of anhydrous potassium carbonate was added, and the mixture was ultrasonically dispersed at 2℃. Then, 1.1mL of acryloyl chloride was added, and the mixture was heated to 60℃ for 14h. After the reaction was completed, the mixture was centrifuged, washed with toluene and anhydrous ethanol, and dried to obtain alkenylated titanium dioxide-coated silica composite particles.

[0030] Example 3 An alkenylated titanium dioxide-coated silica composite particle, the preparation method of which includes the following steps: B1. 1g of nano-silica was ultrasonically dispersed in 110mL of anhydrous ethanol, mixed evenly, heated, 1mol / L hydrochloric acid was added to adjust the pH to 3, then 5mL of deionized water and 3mL of tetrabutyl titanate were added, stirred and mixed, and reacted at 85℃ for 3h. After the reaction was completed, the mixture was centrifuged, washed with deionized water and anhydrous ethanol, dried, and heat-treated at 650℃ for 1h to obtain titanium dioxide-coated silica composite particles. B2. 1g of titanium dioxide-coated silica composite particles were activated in a vacuum activation chamber for 12h, and then ultrasonically dispersed in 100mL of ethanol solution, wherein the ethanol solution consisted of anhydrous ethanol and deionized water in a volume ratio of 3:1. After mixing evenly, ammonia water was added to adjust the pH value to 10, and then 0.5mL of 3-aminopropyltriethoxysilane was added. The temperature was raised, and the mixture was stirred and mixed under a nitrogen atmosphere to allow the reaction to occur. The reaction temperature was 75℃ and the reaction time was 12h. After the reaction was completed, the particles were centrifuged, washed with anhydrous ethanol, and dried to obtain aminated titanium dioxide-coated silica composite particles. B3. 1g of aminated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 120mL of toluene, 0.22g of anhydrous potassium carbonate was added, and the mixture was ultrasonically dispersed at 5℃. Then, 1.2mL of acryloyl chloride was added, and the mixture was heated to 65℃ for 12h. After the reaction was completed, the mixture was centrifuged, washed with toluene and anhydrous ethanol, and dried to obtain alkenylated titanium dioxide-coated silica composite particles.

[0031] Example 4 A moisture-wicking and quick-drying polyester fiber, the preparation method of which includes the following steps: A1. 10g of alkenylated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 500mL of xylene. 2g of maleic anhydride, 8g of butenic acid monoesterified β-cyclodextrin, and 0.2g of initiator benzoyl peroxide were added. The mixture was heated to 75℃ under a nitrogen atmosphere for 6 hours. After the reaction was completed, the mixture was filtered, washed with acetone, and dried to obtain the modified composite particles. A2. Melt-blend 100g of polyester chips and 1g of modified composite particles at a melting temperature of 265℃ and a rotation speed of 180r / min. Extrude and granulate the mixture, then spin it at a spinning temperature of 260℃ and a winding frequency of 115Hz to obtain moisture-wicking and quick-drying polyester fiber.

[0032] The preparation method of the alkenylated titanium dioxide-coated silica composite particles in this embodiment is completely consistent with the preparation method of the alkenylated titanium dioxide-coated silica composite particles in Example 1.

[0033] Example 5 A moisture-wicking and quick-drying polyester fiber, the preparation method of which includes the following steps: A1. 10g of alkenylated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 650mL of xylene. 2.4g of maleic anhydride, 10g of butenic acid monoesterified β-cyclodextrin, and 0.24g of initiator benzoyl peroxide were added. The mixture was heated to 80℃ under a nitrogen atmosphere for 5 hours. After the reaction was completed, the mixture was filtered, washed with acetone, and dried to obtain the modified composite particles. A2. Melt-blend 100g of polyester chips and 2.5g of modified composite particles at a melting temperature of 285℃ and a rotation speed of 170r / min. Extrude and granulate the mixture, then spin it at a spinning temperature of 270℃ and a winding frequency of 114Hz to obtain moisture-wicking and quick-drying polyester fiber.

[0034] The preparation method of the alkenylated titanium dioxide-coated silica composite particles in this embodiment is completely consistent with the preparation method of the alkenylated titanium dioxide-coated silica composite particles in Example 2.

[0035] Example 6 A moisture-wicking and quick-drying polyester fiber, the preparation method of which includes the following steps: A1. 10g of alkenylated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 650mL of xylene. 2.4g of maleic anhydride, 10g of butenic acid monoesterified β-cyclodextrin, and 0.24g of initiator benzoyl peroxide were added. The mixture was heated to 80℃ under a nitrogen atmosphere for 5 hours. After the reaction was completed, the mixture was filtered, washed with acetone, and dried to obtain the modified composite particles. A2. 100g of polyester chips and 3.5g of modified composite particles are melt-blended at a temperature of 285℃ and a rotation speed of 170r / min. The mixture is then extruded and granulated, and spun at a temperature of 270℃ and a winding frequency of 114Hz to obtain moisture-wicking and quick-drying polyester fibers.

[0036] The preparation method of the alkenylated titanium dioxide-coated silica composite particles in this embodiment is completely consistent with the preparation method of the alkenylated titanium dioxide-coated silica composite particles in Example 2.

[0037] Example 7 A moisture-wicking and quick-drying polyester fiber, the preparation method of which includes the following steps: A1. 10g of alkenylated titanium dioxide-coated silica composite particles were ultrasonically dispersed in 800mL of xylene. 3g of maleic anhydride, 15g of butenic acid monoesterified β-cyclodextrin, and 0.3g of initiator benzoyl peroxide were added. The mixture was heated to 85℃ under a nitrogen atmosphere for 4 hours. After the reaction was completed, the mixture was filtered, washed with acetone, and dried to obtain the modified composite particles. A2. Melt-blend 100g of polyester chips and 5g of modified composite particles at a melting temperature of 295℃ and a rotation speed of 160r / min. Extrude and granulate the mixture, then spin it at a spinning temperature of 280℃ and a winding frequency of 110Hz to obtain moisture-wicking and quick-drying polyester fiber.

[0038] The preparation method of the alkenylated titanium dioxide-coated silica composite particles in this embodiment is completely consistent with the preparation method of the alkenylated titanium dioxide-coated silica composite particles in Example 3.

[0039] Example 8 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:25:5. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 165 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 80 mL of deionized water, 3 g of 1,2,3,4-butanetetracarboxylic acid, 2 g of β-cyclodextrin, 0.5 g of epoxy ammonium chloride, and 0.01 g of dispersant vinyl bis-stearamide. The bath ratio is 1:12, the immersion temperature is 25℃, and the immersion time is 60 min. After the treatment, it is first dried at 100℃ for 5 min, then dried at 160℃ for 2 min, rinsed with deionized water for 10 min, and then dried again at 75℃ for 30 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0040] The preparation method of the moisture-wicking and quick-drying polyester fiber in this embodiment is completely consistent with the preparation method of the moisture-wicking and quick-drying polyester fiber in Example 4.

[0041] Example 9 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:30:7. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 185 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 90 mL of deionized water, 6 g of 1,2,3,4-butanetetracarboxylic acid, 3 g of β-cyclodextrin, 0.9 g of epoxy ammonium chloride, and 0.02 g of dispersant vinyl bis-stearamide. The bath ratio is 1:14, the immersion temperature is 30℃, and the immersion time is 45 min. After the treatment, it is first dried at 105℃ for 4 min, then dried at 165℃ for 1.5 min, rinsed with deionized water for 12 min, and then dried again at 78℃ for 25 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0042] The preparation method of the moisture-wicking and quick-drying polyester fiber in this embodiment is completely consistent with the preparation method of the moisture-wicking and quick-drying polyester fiber in Example 5.

[0043] Example 10 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:38:9. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 185 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 90 mL of deionized water, 6 g of 1,2,3,4-butanetetracarboxylic acid, 3 g of β-cyclodextrin, 0.9 g of epoxy ammonium chloride, and 0.02 g of dispersant vinyl bis-stearamide. The bath ratio is 1:14, the immersion temperature is 30℃, and the immersion time is 45 min. After the treatment, it is first dried at 105℃ for 4 min, then dried at 165℃ for 1.5 min, rinsed with deionized water for 12 min, and then dried again at 78℃ for 25 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0044] The preparation method of the moisture-wicking and quick-drying polyester fiber in this embodiment is completely consistent with the preparation method of the moisture-wicking and quick-drying polyester fiber in Example 6.

[0045] Example 11 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn, and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:42:12. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 205 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 95 mL of deionized water, 8 g of 1,2,3,4-butanetetracarboxylic acid, 4 g of β-cyclodextrin, 1.2 g of epoxy ammonium chloride, and 0.03 g of dispersant vinyl bis-stearamide. The bath ratio is 1:15, the immersion temperature is 35℃, and the immersion time is 30 min. After the treatment, it is first dried at 110℃ for 3 min, then dried at 170℃ for 1 min, rinsed with deionized water for 15 min, and then dried again at 80℃ for 15 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0046] The preparation method of the moisture-wicking and quick-drying polyester fiber in this embodiment is completely consistent with the preparation method of the moisture-wicking and quick-drying polyester fiber in Example 7.

[0047] Comparative Example 1 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:38:9. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 185 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 90 mL of deionized water, 6 g of 1,2,3,4-butanetetracarboxylic acid, 3 g of β-cyclodextrin, 0.9 g of epoxy ammonium chloride, and 0.02 g of dispersant vinyl bis-stearamide. The bath ratio is 1:14, the immersion temperature is 30℃, and the immersion time is 45 min. After the treatment, it is first dried at 105℃ for 4 min, then dried at 165℃ for 1.5 min, rinsed with deionized water for 12 min, and then dried again at 78℃ for 25 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0048] The preparation method of the moisture-wicking and quick-drying polyester fiber includes the following steps: 100g of polyester chips, 1.55g of alkenylated titanium dioxide-coated silica composite particles, 0.4g of maleic anhydride, and 1.55g of butenedioic acid monoesterified β-cyclodextrin are melt-blended at a temperature of 285℃ and a rotation speed of 170r / min. The mixture is then extruded and granulated, and spun at a temperature of 270℃ and a winding frequency of 114Hz to obtain the moisture-wicking and quick-drying polyester fiber.

[0049] The preparation method of the alkenylated titanium dioxide-coated silica composite particles in this comparative example is completely consistent with the preparation method of the alkenylated titanium dioxide-coated silica composite particles in Example 2.

[0050] Comparative Example 2 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:38:9. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 185 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 90 mL of deionized water, 6 g of 1,2,3,4-butanetetracarboxylic acid, 3 g of β-cyclodextrin, 0.9 g of epoxy ammonium chloride, and 0.02 g of dispersant vinyl bis-stearamide. The bath ratio is 1:14, the immersion temperature is 30℃, and the immersion time is 45 min. After the treatment, it is first dried at 105℃ for 4 min, then dried at 165℃ for 1.5 min, rinsed with deionized water for 12 min, and then dried again at 78℃ for 25 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0051] The preparation method of the moisture-wicking and quick-drying polyester fiber includes the following steps: 100g of polyester chips and 3.5g of alkenylated titanium dioxide-coated silica composite particles are melt-blended at a temperature of 285℃ and a rotation speed of 170r / min. The mixture is then extruded and granulated, and spun at a temperature of 270℃ and a winding frequency of 114Hz to obtain the moisture-wicking and quick-drying polyester fiber.

[0052] The preparation method of the alkenylated titanium dioxide-coated silica composite particles in this comparative example is completely consistent with the preparation method of the alkenylated titanium dioxide-coated silica composite particles in Example 2.

[0053] Comparative Example 3 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:38:9. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 185 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 90 mL of deionized water, 6 g of 1,2,3,4-butanetetracarboxylic acid, 3 g of β-cyclodextrin, 0.9 g of epoxy ammonium chloride, and 0.02 g of dispersant vinyl bis-stearamide. The bath ratio is 1:14, the immersion temperature is 30℃, and the immersion time is 45 min. After the treatment, it is first dried at 105℃ for 4 min, then dried at 165℃ for 1.5 min, rinsed with deionized water for 12 min, and then dried again at 78℃ for 25 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0054] The preparation method of moisture-wicking and quick-drying polyester fiber includes the following steps: A1. 6.4g of nano-silica and 3.6g of nano-titanium dioxide were ultrasonically dispersed in 650mL of xylene. 2.4g of maleic anhydride, 10g of butenic acid monoesterified β-cyclodextrin, and 0.24g of initiator benzoyl peroxide were added. The mixture was heated to 80℃ under a nitrogen atmosphere for 5 hours. After the reaction was completed, the mixture was filtered, washed with acetone, and dried to obtain modified composite particles. A2. 100g of polyester chips and 3.5g of modified composite particles are melt-blended at a temperature of 285℃ and a rotation speed of 170r / min. The mixture is then extruded and granulated, and spun at a temperature of 270℃ and a winding frequency of 114Hz to obtain moisture-wicking and quick-drying polyester fibers.

[0055] Comparative Example 4 A moisture-wicking and quick-drying polyester fiber fabric, the preparation process of which includes the following steps: Step 1: Blend quick-drying polyester fiber and cotton fiber to obtain the outer yarn. Use spandex fiber as the core yarn and combine and wind the blended yarn on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:38:9. Knit the mixed yarn on a circular knitting machine with a cylinder diameter of 34 inches to obtain a polyester fiber fabric with a weight of 185 g / m². 2 ; Step 2: The polyester fiber fabric is immersed in a finishing solution, which is prepared by mixing 90 mL of deionized water, 9.9 g of 1,2,3,4-butanetetracarboxylic acid, and 0.02 g of dispersant vinyl bis-stearamide. The bath ratio is 1:14, the immersion temperature is 30℃, and the immersion time is 45 min. After the treatment, it is first dried at 105℃ for 4 min, then dried at 165℃ for 1.5 min, rinsed with deionized water for 12 min, and then dried again at 78℃ for 25 min to obtain a moisture-wicking and quick-drying polyester fiber fabric.

[0056] The preparation method of the moisture-wicking and quick-drying polyester fiber in this comparative example is completely consistent with the preparation method of the moisture-wicking and quick-drying polyester fiber in Example 6.

[0057] Comparative Example 5 A moisture-wicking and quick-drying polyester fiber fabric is prepared by the following steps: Step 1: A moisture-wicking and quick-drying polyester fiber and cotton fiber are blended to obtain an outer yarn. Spandex fiber is used as the core yarn, and the blended yarn is then wound on a core-spun yarn machine to obtain a mixed yarn core-spun yarn. The mixed yarn consists of moisture-wicking and quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:38:9. The mixed yarn is then knitted on a circular knitting machine with a cylinder diameter of 34 inches to obtain the moisture-wicking and quick-drying polyester fiber fabric. The weight of the moisture-wicking and quick-drying polyester fiber fabric is 185 g / m². 2.

[0058] The preparation method of the moisture-wicking and quick-drying polyester fiber in this comparative example is completely consistent with the preparation method of the moisture-wicking and quick-drying polyester fiber in Example 6.

[0059] The butenedioic acid monoesterified β-cyclodextrin described in this invention was prepared according to the preparation method of butenedioic acid monoesterified β-cyclodextrin in "Chen Pengfei, Song Hang, Li Fulin, Tang Mengyu, Zhou Lu, Preparation and performance study of magnetic nanoparticles modified with butenedioic acid monoesterified β-cyclodextrin".

[0060] The nano-silica used in the examples and comparative examples of this invention was purchased from Jiangsu Lianyungang Pengrui Chemical Co., Ltd., with an average particle size of 15 nm; 1,2,3,4-butanetetracarboxylic acid (98%) was purchased from Beijing Bailingwei Technology Co., Ltd.; β-cyclodextrin was purchased from Sinopharm Chemical Reagent Co., Ltd.; the polyester chips were fiber grade, hydroxyl-terminated polyester chips, [η]=0.67dL / g, and purchased from Suzhou Baolidi Materials Technology Co., Ltd.; other undisclosed reagents were all commercially available.

[0061] The moisture-wicking and quick-drying polyester fiber fabrics in Examples 8-11 and Comparative Examples 1-5 were subjected to relevant performance tests, and the test results are shown below: (1) Water absorption rate and water diffusion time: The test standard refers to GB / T 21655.1-2023 "Evaluation of the moisture absorption and quick-drying properties of textiles - Part 1: Single combination test method". The fabric sample (10cm×10cm) is equilibrated in a standard environment (temperature 20±2℃, humidity 65±4%) for 24h, and the weight is recorded as W0. It is then immersed in distilled water. After it is completely soaked, it is taken out until there is no dripping water, and the weight is recorded as W1. The water absorption rate is calculated. The calculation formula is: water absorption rate (%) = (W1-W0) / W0×100%; The fabric sample is laid flat on a standard platform, and a drop of distilled water (about 0.05mL) is dripped from a height of 1cm. The time required for the water droplet to completely diffuse (no longer reflect light) is recorded. (2) Evaporation rate test: First, the fabric sample is conditioned for moisture balance and weighed as m0. 2mL of distilled water is dropped on the center of the sample. The water drop is completely absorbed and weighed as m. The sample is then quickly suspended in the standard atmosphere and weighed every 3min as m1 for 60min. The amount of water evaporated per unit time (g / h) is calculated. Evaporation rate = (m-m1) / test time (h). (3) Air permeability test: The test standard is based on GB / T 5453-1997 "Determination of air permeability of textile fabrics", using a YG461E fabric air permeability tester, with a sample area of ​​20 cm². 2 The test pressure was 100Pa, and the airflow rate (mm / s) through the fabric was measured. (4) Moisture permeability test: The test standard refers to GB / T 12704.1-2009 "Textiles - Test Methods for Moisture Permeability of Fabrics - Part 1: Moisture Absorption Method". The fabric sample is sealed in a moisture permeability cup (containing a desiccant) and placed in a constant temperature and humidity chamber (temperature 38±2℃, humidity 90±2%). After 24 hours, the sample is weighed and the water vapor transmission rate (g / m³) is calculated. 2 •24h).

[0062] Each test group was run five times, and the average value was taken. The test results are shown in Table 1.

[0063] According to the test results in Table 1, the moisture-wicking and quick-drying polyester fiber fabrics corresponding to Examples 8-11 have excellent moisture-wicking and quick-drying properties and good breathability. In Comparative Example 1, the raw materials were directly blended, resulting in poor dispersion of the alkenylated titanium dioxide-coated silica composite particles and a decrease in moisture-wicking and quick-drying properties. In Comparative Example 2, during the preparation of the moisture-wicking and quick-drying polyester fiber, alkenylated titanium dioxide-coated silica composite particles were used to replace the modified composite particles, without introducing a large number of hydrophilic groups and β-cyclodextrin, leading to poor moisture absorption and breathability. In Comparative Example 3, nano-silica and nano-titanium dioxide were directly added, which greatly reduced their dispersion and compatibility in the matrix. Furthermore, the lack of a core-shell structure resulted in poor synergistic effect, weak modification effect, and a significant decrease in overall performance. The preparation method of the polyester fiber fabric in Comparative Example 4 was consistent with that in Example 10. Only 1,2,3,4-butanetetracarboxylic acid was added to the finishing agent, lacking β-cyclodextrin and epoxy ammonium chloride, resulting in mediocre hydrophilic coating performance. Finishing solutions can further improve water vapor permeability. In contrast, Comparative Example 5, which was not treated with finishing solutions, relied solely on the polyester fiber fabric itself, resulting in limited modification effects, limited hydrophilicity, and reduced performance.

[0064] The moisture-wicking and quick-drying polyester fiber fabrics in Examples 8-11 were subjected to relevant performance tests, and the test results are as follows: (5) According to the standard GB / T 8629-2017 "Home Washing and Drying Procedures for Textile Testing", the moisture-wicking and quick-drying polyester fiber fabrics in Examples 8-11 were washed and dried. After the fabric was washed 50 times, the moisture-wicking and quick-drying performance of the washed fabric was tested according to the above test method.

[0065] The test results are shown in Table 2:

[0066] According to the test results in Table 2, the moisture-wicking and quick-drying polyester fiber fabrics in Examples 8-11 still maintain excellent moisture-wicking and quick-drying effects after 50 washes. The water absorption retention rate is ≥88%, the dripping time is ≤3s, and the evaporation rate, air permeability, and moisture permeability all show high retention rates, indicating that the fabric has good durability and good functional longevity.

[0067] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A process for preparing moisture-wicking and quick-drying polyester fiber, characterized in that: Includes the following steps: A1. The alkenylated titanium dioxide-coated silica composite particles were ultrasonically dispersed in xylene, and maleic anhydride, butenedioic acid monoesterified β-cyclodextrin, and initiator were added. The mixture was heated in a nitrogen atmosphere to carry out the reaction. After the reaction was completed, the mixture was filtered, washed, and dried to obtain the modified composite particles. A2. Polyester chips and modified composite particles are melt-blended, extruded and granulated, and then spun to obtain moisture-wicking and quick-drying polyester fibers. In A1, the addition ratio of alkenylated titanium dioxide-coated silica composite particles, xylene, maleic anhydride, butenedioic acid monoesterified β-cyclodextrin, and initiator is 10g:500-800mL:2-3g:8-15g:0.2-0.3g, the reaction temperature is 75-85℃, and the reaction time is 4-6h. In A2, the addition ratio of polyester chips and modified composite particles is 100g:1-5g, the melt-blending temperature is 265-295℃, the rotation speed is 160-180r / min, and during the spinning process, the spinning temperature is 260-280℃, and the winding frequency is 110-115Hz.

2. The preparation process of a moisture-wicking and quick-drying polyester fiber according to claim 1, characterized in that: The preparation method of the alkenylated titanium dioxide-coated silica composite particles in A1 includes the following steps: B1. Disperse nano-silica in anhydrous ethanol by ultrasonication, mix evenly, heat, add hydrochloric acid, adjust the pH to 2-3, then add deionized water and tetrabutyl titanate, stir and mix, and react. After the reaction is completed, centrifuge, wash, dry, and heat treat to obtain titanium dioxide-coated silica composite particles. B2. Activate the titanium dioxide-coated silica composite particles in a vacuum activation chamber for 12 hours, then ultrasonically disperse them in an ethanol solution. After mixing evenly, add ammonia to adjust the pH to 9-10, and then add 3-aminopropyltriethoxysilane. The addition ratio of titanium dioxide-coated silica composite particles, ethanol solution, and 3-aminopropyltriethoxysilane is 1g:80-100mL:0.2-0.5mL. Heat the mixture under a nitrogen atmosphere, stir and mix to allow the reaction to occur. The reaction temperature is 65-75℃, and the reaction time is 12-15 hours. After the reaction is completed, centrifuge, wash, and dry to obtain aminated titanium dioxide-coated silica composite particles. B3. The aminated titanium dioxide-coated silica composite particles were ultrasonically dispersed in toluene, anhydrous potassium carbonate was added, and the mixture was ultrasonically dispersed at 0-5℃. Acryloyl chloride was then added, the temperature was raised, and the reaction was carried out. After the reaction was completed, the mixture was centrifuged, washed, and dried to obtain alkenylated titanium dioxide-coated silica composite particles.

3. The preparation process of a moisture-wicking and quick-drying polyester fiber according to claim 2, characterized in that: The addition ratio of nano-silica, anhydrous ethanol, deionized water, and tetrabutyl titanate in B1 is 1g:90-110mL:2-5mL:2-3mL. The reaction temperature is 75-85℃, the reaction time is 3-4h, the heat treatment temperature is 580-650℃, and the heat treatment time is 1-2h.

4. The preparation process of a moisture-wicking and quick-drying polyester fiber according to claim 2, characterized in that: The addition ratio of aminated titanium dioxide-coated silica composite particles, toluene, anhydrous potassium carbonate, and acryloyl chloride in B3 is 1g:100-120mL:0.18-0.22g:1-1.2mL, the reaction temperature is 55-65℃, and the reaction time is 12-15h.

5. A moisture-wicking and quick-drying polyester fiber, characterized in that: It is prepared by the moisture-wicking and quick-drying polyester fiber preparation process according to any one of claims 1-4.

6. A moisture-wicking and quick-drying polyester fiber fabric, characterized in that: The moisture-wicking and quick-drying polyester fiber fabric is woven from the moisture-wicking and quick-drying polyester fiber as described in claim 5; the polyester fiber fabric is knitted from a mixed yarn; the mixed yarn is composed of moisture-wicking and quick-drying polyester fiber, cotton fiber, and spandex fiber in a mass ratio of 100:(25-42):(5-12); the polyester fiber fabric is obtained by impregnation treatment in a finishing solution.

7. The moisture-wicking and quick-drying polyester fiber fabric according to claim 6, characterized in that: The finishing solution is prepared as follows: Deionized water, 1,2,3,4-butanetetracarboxylic acid, β-cyclodextrin, epoxy ammonium chloride, and dispersant are mixed evenly in a ratio of 80-95mL:3-8g:2-4g:0.5-1.2g:0.01-0.03g to obtain the finishing solution.

8. A process for preparing a moisture-wicking and quick-drying polyester fiber fabric as described in any one of claims 6-7, characterized in that: Includes the following steps: Step 1: Blend moisture-wicking and quick-drying polyester fiber and cotton fiber to obtain outer yarn. Use spandex fiber as core yarn and combine it on a core-spun yarn machine. Wind the yarn to obtain mixed core-spun yarn. Knit the mixed yarn on a circular knitting machine to obtain polyester fiber fabric. Step 2: Immerse the polyester fiber fabric in the finishing solution. After treatment, dry it at 100-110℃ for 3-5 minutes, then dry it at 160-170℃ for 1-2 minutes. Wash it with deionized water for 10-15 minutes, and then dry it at 75-80℃ for 15-30 minutes to obtain the moisture-wicking and quick-drying polyester fiber fabric.

9. The preparation process of a moisture-wicking and quick-drying polyester fiber fabric according to claim 8, characterized in that: In step one, the cylinder diameter of the circular knitting machine is 34 inches, and the weight of the polyester fiber fabric is 165-205 g / m². 2 .

10. The preparation process of a moisture-wicking and quick-drying polyester fiber fabric according to claim 8, characterized in that: In step two, the bath ratio for immersion is 1:12-15, the immersion temperature is 25-35℃, and the immersion time is 30-60 minutes.

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