High-elasticity quick-drying fabric and preparation method thereof

Abstract

The invention discloses a high-elasticity quick-drying fabric and a preparation method thereof. The fabric is prepared from the following raw materials in parts by weight: 20-40 parts of modified natural fibers, 20-40 parts of polyester, 40-80 parts of spandex, 3-8 parts of a moisture absorbent, 3-5 parts of a softening agent and 3-5 parts of an antibacterial agent. According to the fabric, the modified natural fibers and the chemical fibers are compounded and blended, and under the condition that the mechanical property of the fabric is kept, the elasticity and the moisture absorption and sweat releasing performance of the material are enhanced. The elasticity of the material is enhanced through the composite use of the modified giant bamboo fibers and the modified camel hair fibers in the components, the perspiration performance of the material is improved through the combined use of the sericin and the konjac glucomannan, and the fracture resistance of the material is improved through the combined use of the dioctadecyl dimethyl ammonium chloride and the epoxy modified betaine.

Description

Technical Field

[0001] The invention belongs to the technical field of blended fabric preparation, and particularly relates to a high-elasticity quick-drying fabric and a preparation method thereof. Background Art

[0002] Highly elastic fabrics are widely used in sportswear, outdoor equipment, specialty clothing, and other fields. Their core performance relies on the coordinated optimization of fiber selection, fabric structure design, and finishing processes. High elasticity is typically provided by spandex (such as Lycra) or elastic composite fibers (such as polyester / spandex blends). For example, a special police training uniform is blended with 90% imported nylon and 10% spandex to ensure high resilience and tear resistance. To maintain high elasticity, the fabric's moisture absorption and perspiration function is generally not strong. Blending natural and chemical fibers can improve the fabric's moisture absorption and perspiration function, but it significantly reduces the fabric's elasticity. Therefore, it is necessary to select suitable natural fibers that can maintain the fabric's moisture absorption and perspiration function while also improving its elasticity.

[0003] High-elasticity fabrics play an important role in the fields of sportswear and functional clothing, but their softness often has obvious defects. Elastic fibers (such as spandex) are inherently hard, especially when the content exceeds 15%, which will significantly reduce the overall softness of the fabric; the tightly woven structure used to improve elasticity will restrict the free movement of fibers and produce a stiff feeling; fiber fatigue after multiple stretching will further aggravate the hardness problem. Therefore, it is necessary to introduce suitable softeners into the fabric to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-elastic quick-drying fabric and a preparation method thereof.

[0005] A high-elastic quick-drying fabric comprises the following raw materials in parts by weight: 20-40 parts of modified natural fiber, 20-40 parts of polyester, 40-80 parts of spandex, 3-8 parts of moisture absorbent, 3-5 parts of softener, and 3-5 parts of antibacterial agent.

[0006] The modified natural fiber is a mixed fiber obtained by mixing modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of (2-4):1.

[0007] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 1-3wt% graphene oxide and 0.5-1wt% silane coupling agent KH570 for 1-3 hours, and then reduced in an aqueous solution containing 0.2-0.6wt% hydroiodic acid and 1-3wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0008] The preparation method of the modified camel hair fiber is as follows: 0.03-0.07 parts of cysteine ​​desulfurase are dissolved in 8-12 parts of Tris-HCl buffer with a pH of 7.5-8.5 according to parts by weight to prepare a treatment solution, 0.5-1.5 parts of camel hair fiber are placed in the treatment solution and immersed at a temperature of 33-37°C. After modification for 1-3 hours, the fiber is filtered and washed with water 2-4 times to obtain the modified camel hair fiber.

[0009] The moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of (1-3):1.

[0010] The softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy modified betaine in a mass ratio of (1-3):1.

[0011] The preparation method of the epoxy-modified betaine comprises the following steps: adding 10-15 parts by mass of oleyl betaine, 3.1-4.7 parts by mass of 3,4-epoxy-1-butene, and 2-5 parts by mass of a 6-12% isopropanol solution of chloroplatinic acid into a high-pressure stirred autoclave while introducing nitrogen; then adding 100-150 parts by mass of 200# solvent oil, 6-12 parts by mass of 2,4,6,8-tetramethylcyclotetrasiloxane, and 0.5-2.1 parts by mass of N-allyl-N'-ethylurea; controlling the temperature at 55-65°C, stirring and reacting for 2-5 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

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

[0013] The preparation method of the high-elasticity quick-drying fabric is carried out according to the following steps: (1) taking 20-40 parts of modified natural fiber, 20-40 parts of polyester, 40-80 parts of spandex, 3-8 parts of moisture absorbent, 3-5 parts of softener, and 3-5 parts of antibacterial agent according to parts by weight, adding 100-200 parts of water, stirring for 10-20 minutes, and mixing evenly; (2) drying at 90-120°C for 24-36 hours, and then melt-spinning through a shaped spinneret at 220-240°C to form raw yarn; (3) the raw yarn prepared in step (2) is wound, doffed, balanced bundled, guided, pre-stretched and oiled, and then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to finally obtain a mixed fiber; (4) the mixed fiber is woven into a high-elasticity quick-drying fabric by machine weaving.

[0014] The waterproof and breathable fabric is dyed to produce colorful cloth.

[0015] Beneficial effects of the present invention: The highly elastic, quick-drying fabric of the present invention utilizes a composite blend of modified natural and chemical fibers, enhancing its elasticity and moisture-wicking properties while maintaining its mechanical properties. The combined use of modified Julong bamboo fiber and modified camel hair fiber enhances the material's elasticity, while the combined use of sericin and konjac glucomannan improves its perspiration-wicking properties. The combined use of dioctadecyl dimethyl ammonium chloride and epoxy-modified betaine enhances its flexural strength. DETAILED DESCRIPTION

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

[0017] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of a moisture absorbent, 4 parts of a softener, and 4 parts of methylisothiazolinone; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 3:1; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 2:1; and the softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 2:1.

[0018] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 2wt% graphene oxide and 0.7wt% silane coupling agent KH570 for 2 hours, and then reduced in an aqueous solution containing 0.4wt% hydroiodic acid and 2wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0019] The preparation method of the modified camel hair fiber is as follows: 0.05 parts of cysteine ​​desulfurase are dissolved in 10 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1 part of camel hair fiber is taken and placed in the treatment solution for immersion at a temperature of 35°C. After modification for 2 hours, the fiber is filtered and washed with water three times to obtain the modified camel hair fiber.

[0020] The preparation method of the epoxy-modified betaine comprises the following steps: adding 12 parts by mass of oleyl betaine, 4 parts of 3,4-epoxy-1-butene, and 3 parts of an isopropanol solution of chloroplatinic acid with a concentration of 8% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 120 parts of 200# solvent oil, 8 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 1 part of N-allyl-N'-ethylurea; controlling the temperature at 60°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0021] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of moisture absorbent, 4 parts of softener, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Example 2

[0022] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 20 parts of modified natural fiber, 20 parts of polyester, 45 parts of spandex, 4 parts of a moisture absorbent, 3 parts of a softener, and 3 parts of zinc oxide; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 2:1; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 1:1; and the softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 1:1.

[0023] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 1wt% graphene oxide and 0.5wt% silane coupling agent KH570 for 3 hours, and then reduced in an aqueous solution containing 0.2wt% hydroiodic acid and 1wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0024] The preparation method of the modified camel hair fiber is as follows: 0.03 parts of cysteine ​​desulfurase are dissolved in 8 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 0.5 parts of camel hair fiber are taken and placed in the treatment solution for immersion at a temperature of 33° C. After modification for 3 hours, the fiber is filtered and washed with water twice to obtain the modified camel hair fiber.

[0025] The preparation method of the epoxy-modified betaine comprises the following steps: adding 10 parts by mass of oleyl betaine, 3.3 parts of 3,4-epoxy-1-butene, and 2 parts of a 10% by mass chloroplatinic acid solution in a high-pressure stirred autoclave while introducing nitrogen; then adding 100 parts of 200# solvent oil, 6 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 0.5 parts of N-allyl-N'-ethylurea; controlling the temperature at 55°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0026] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 20 parts of modified natural fiber, 20 parts of polyester, 45 parts of spandex, 4 parts of moisture absorbent, 3 parts of softener, and 3 parts of zinc oxide, add 100 parts of water, stir for 10 minutes, and mix well; (2) drying at 90°C for 36 h, and then melt-spinning through a shaped spinneret at 220°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Example 3

[0027] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 40 parts of modified natural fiber, 40 parts of polyester, 80 parts of spandex, 8 parts of a moisture absorbent, 5 parts of a softener, and 5 parts of chitosan; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 4:1; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 3:1; and the softener is a mixture of distearyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 3:1.

[0028] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 3wt% graphene oxide and 1wt% silane coupling agent KH570 for 3 hours, and then reduced in an aqueous solution containing 0.6wt% hydroiodic acid and 3wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0029] The preparation method of the modified camel hair fiber is as follows: 0.07 parts of cysteine ​​desulfurase are dissolved in 12 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1.5 parts of camel hair fiber are taken and placed in the treatment solution for immersion at a temperature of 37° C. After modification for 1 hour, the fiber is filtered and washed with water 4 times to obtain the modified camel hair fiber.

[0030] The preparation method of the epoxy-modified betaine comprises the following steps: adding 15 parts by mass of oleyl betaine, 4.5 parts of 3,4-epoxy-1-butene, and 5 parts of an isopropanol solution of chloroplatinic acid with a concentration of 12% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 150 parts of 200# solvent oil, 12 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 2 parts of N-allyl-N'-ethylurea; controlling the temperature at 65°C, stirring and reacting for 5 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0031] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 40 parts of modified natural fiber, 40 parts of polyester, 80 parts of spandex, 8 parts of moisture absorbent, 5 parts of softener, and 5 parts of chitosan, add 200 parts of water, stir for 20 minutes, and mix well; (2) drying at 120°C for 24 h, and then melt-spinning through a shaped spinneret at 240°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Comparative Example 1

[0032] A high-elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified Julong bamboo fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of a moisture absorbent, 4 parts of a softener, and 4 parts of methylisothiazolinone; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 2:1; the softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 2:1.

[0033] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 2wt% graphene oxide and 0.7wt% silane coupling agent KH570 for 2 hours, and then reduced in an aqueous solution containing 0.4wt% hydroiodic acid and 2wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0034] The preparation method of the epoxy-modified betaine comprises the following steps: adding 12 parts by mass of oleyl betaine, 4 parts of 3,4-epoxy-1-butene, and 3 parts of an isopropanol solution of chloroplatinic acid with a concentration of 8% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 120 parts of 200# solvent oil, 8 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 1 part of N-allyl-N'-ethylurea; controlling the temperature at 60°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0035] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified Julong bamboo fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of moisture absorbent, 4 parts of softener, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Comparative Example 2

[0036] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified camel hair fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of a moisture absorbent, 4 parts of a softener, and 4 parts of methylisothiazolinone; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 2:1; the softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 2:1.

[0037] The preparation method of the modified camel hair fiber is as follows: 0.05 parts of cysteine ​​desulfurase are dissolved in 10 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1 part of camel hair fiber is taken and placed in the treatment solution for immersion at a temperature of 35°C. After modification for 2 hours, the fiber is filtered and washed with water three times to obtain the modified camel hair fiber.

[0038] The preparation method of the epoxy-modified betaine comprises the following steps: adding 12 parts by mass of oleyl betaine, 4 parts of 3,4-epoxy-1-butene, and 3 parts of an isopropanol solution of chloroplatinic acid with a concentration of 8% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 120 parts of 200# solvent oil, 8 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 1 part of N-allyl-N'-ethylurea; controlling the temperature at 60°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0039] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified camel hair fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of moisture absorbent, 4 parts of softener, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Comparative Example 3

[0040] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of sericin, 4 parts of softener, and 4 parts of methylisothiazolinone; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 3:1; the softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 2:1.

[0041] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 2wt% graphene oxide and 0.7wt% silane coupling agent KH570 for 2 hours, and then reduced in an aqueous solution containing 0.4wt% hydroiodic acid and 2wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0042] The preparation method of the modified camel hair fiber is as follows: 0.05 parts of cysteine ​​desulfurase are dissolved in 10 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1 part of camel hair fiber is taken and placed in the treatment solution for immersion at a temperature of 35°C. After modification for 2 hours, the fiber is filtered and washed with water three times to obtain the modified camel hair fiber.

[0043] The preparation method of the epoxy-modified betaine comprises the following steps: adding 12 parts by mass of oleyl betaine, 4 parts of 3,4-epoxy-1-butene, and 3 parts of an isopropanol solution of chloroplatinic acid with a concentration of 8% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 120 parts of 200# solvent oil, 8 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 1 part of N-allyl-N'-ethylurea; controlling the temperature at 60°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0044] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of sericin, 4 parts of softener, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Comparative Example 4

[0045] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of konjac glucomannan, 4 parts of softener, and 4 parts of methylisothiazolinone; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 3:1; the softener is a mixture of distearyl dimethyl ammonium chloride and epoxy-modified betaine in a mass ratio of 2:1.

[0046] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 2wt% graphene oxide and 0.7wt% silane coupling agent KH570 for 2 hours, and then reduced in an aqueous solution containing 0.4wt% hydroiodic acid and 2wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0047] The preparation method of the modified camel hair fiber is as follows: 0.05 parts of cysteine ​​desulfurase are dissolved in 10 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1 part of camel hair fiber is taken and placed in the treatment solution for immersion at a temperature of 35°C. After modification for 2 hours, the fiber is filtered and washed with water three times to obtain the modified camel hair fiber.

[0048] The preparation method of the epoxy-modified betaine comprises the following steps: adding 12 parts by mass of oleyl betaine, 4 parts of 3,4-epoxy-1-butene, and 3 parts of an isopropanol solution of chloroplatinic acid with a concentration of 8% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 120 parts of 200# solvent oil, 8 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 1 part of N-allyl-N'-ethylurea; controlling the temperature at 60°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0049] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of konjac glucomannan, 4 parts of softener, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Comparative Example 5

[0050] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of a moisture absorbent, 4 parts of dioctadecyldimethylammonium chloride, and 4 parts of methylisothiazolinone; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 3:1; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 2:1.

[0051] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 2wt% graphene oxide and 0.7wt% silane coupling agent KH570 for 2 hours, and then reduced in an aqueous solution containing 0.4wt% hydroiodic acid and 2wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0052] The preparation method of the modified camel hair fiber is as follows: 0.05 parts of cysteine ​​desulfurase are dissolved in 10 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1 part of camel hair fiber is taken and placed in the treatment solution for immersion at a temperature of 35°C. After modification for 2 hours, the fiber is filtered and washed with water three times to obtain the modified camel hair fiber.

[0053] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of moisture absorbent, 4 parts of dioctadecyl dimethyl ammonium chloride, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics. Comparative Example 6

[0054] A highly elastic quick-drying fabric comprises the following raw materials in parts by weight: 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of a moisture absorbent, 4 parts of epoxy-modified betaine, and 4 parts of methylisothiazolinone; the modified natural fiber is a mixed fiber of modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of 3:1; the moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of 2:1.

[0055] The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 2wt% graphene oxide and 0.7wt% silane coupling agent KH570 for 2 hours, and then reduced in an aqueous solution containing 0.4wt% hydroiodic acid and 2wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

[0056] The preparation method of the modified camel hair fiber is as follows: 0.05 parts of cysteine ​​desulfurase are dissolved in 10 parts of Tris-HCl buffer with a pH of 8 according to parts by weight to prepare a treatment solution, 1 part of camel hair fiber is taken and placed in the treatment solution for immersion at a temperature of 35°C. After modification for 2 hours, the fiber is filtered and washed with water three times to obtain the modified camel hair fiber.

[0057] The preparation method of the epoxy-modified betaine comprises the following steps: adding 12 parts by mass of oleyl betaine, 4 parts of 3,4-epoxy-1-butene, and 3 parts of an isopropanol solution of chloroplatinic acid with a concentration of 8% by mass to a high-pressure stirred autoclave while introducing nitrogen; then adding 120 parts of 200# solvent oil, 8 parts of 2,4,6,8-tetramethylcyclotetrasiloxane, and 1 part of N-allyl-N'-ethylurea; controlling the temperature at 60°C, stirring and reacting for 3 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

[0058] The preparation method of the high-elastic quick-drying fabric is carried out according to the following steps: (1) According to the weight ratio, take 30 parts of modified natural fiber, 30 parts of polyester, 60 parts of spandex, 6 parts of moisture absorbent, 4 parts of epoxy modified betaine, and 4 parts of methylisothiazolinone, add 150 parts of water, stir for 15 minutes, and mix well; (2) Drying at 100°C for 28 hours, and then melt-spinning through a shaped spinneret at 230°C to produce raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics.

[0059] Experimental Example: The tensile properties of the fabrics prepared in Examples 1-3 and Comparative Examples 1-2 were measured with reference to the provisions of GB / T14343-2008; the measurement was repeated three times for each material and the average value was taken. Statistical analysis was performed using SPSS 24.0 software. The measurement data results were expressed as `x±s (mean ± standard deviation). The Kolmogorov-Smirnov test was used to test the normality of the data. For data that met the normal distribution, the t-test was used to compare the mean differences between the two groups. The difference was considered statistically significant when P < 0.05. The measurement results are shown in Table 1: Table 1 Experimental group Elongation at break % <![CDATA[Breaking strength cN.dtex -1 > Example 1 199.3±5.4 4.43±0.14 Example 2 191.1±3.8 4.22±0.23 Example 3 195.6±1.9 4.35±0.25 Comparative Example 1 112.2±3.6* 2.78±0.19* Comparative Example 2 125.5±6.1* 2.49±0.12* Note: * represents P < 0.05 compared with the group in Example 1.

[0060] The moisture permeability of the fabrics prepared in Examples 1-3 and Comparative Examples 3-4 was tested with reference to Part 1 of GB / T127041-2009. The test results are shown in Table 2: Table 2 Experimental group Water absorption % <![CDATA[Water vapor permeability g·m -2 .24h -1 > Example 1 202.5±7.1 3454.3±22.3 Example 2 203.1±4.5 3318.9±29.1 Example 3 198.3±4.3 3418.7±42.1 Comparative Example 3 123.1±3.1* 2918.3±19.9* Comparative Example 4 111.7±5.8* 2892.1±36.8* Note: * represents P < 0.05 compared with the group in Example 1.

[0061] The wrinkle recovery angles of the fabrics prepared in Examples 1-3 and Comparative Examples 5-6 were tested according to the AATCC 66-2017 standard test method. The test results are shown in Table 3: Table 3 Experimental group Wrinkle recovery angle (warp direction) Wrinkle recovery angle (weft direction) Example 1 129.5±3.1 126.3±2.2 Example 2 127.1±2.2 124.2±1.7 Example 3 128.3±3.5 123.3±1.9 Comparative Example 5 101.3±1.4* 98.6±2.3* Comparative Example 6 105.3±1.8* 97.3±1.6* Note: * represents P < 0.05 compared with the group in Example 1.

[0062] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A high-elastic quick-drying fabric, characterized in that: The invention comprises the following raw materials in parts by weight: 20-40 parts of modified natural fiber, 20-40 parts of polyester, 40-80 parts of spandex, 3-8 parts of moisture absorbent, 3-5 parts of softener and 3-5 parts of antibacterial agent.

2. The high-elastic quick-drying fabric according to claim 1, characterized in that: The modified natural fiber is a mixed fiber obtained by mixing modified Julong bamboo fiber and modified camel hair fiber in a mass ratio of (2-4):

1.

3. The high-elastic quick-drying fabric according to claim 1, characterized in that: The preparation method of the modified Julong bamboo fiber is as follows: the Julong bamboo fiber is immersed in an aqueous solution containing 1-3wt% graphene oxide and 0.5-1wt% silane coupling agent KH570 for 1-3 hours, and then reduced in an aqueous solution containing 0.2-0.6wt% hydroiodic acid and 1-3wt% acetic acid. After being removed, the fiber is washed with water and dried to obtain the modified Julong bamboo fiber.

4. The high-elastic quick-drying fabric according to claim 1, characterized in that: The preparation method of the modified camel hair fiber is as follows: 0.03-0.07 parts of cysteine ​​desulfurase are dissolved in 8-12 parts of Tris-HCl buffer with a pH of 7.5-8.5 according to parts by weight to prepare a treatment solution, 0.5-1.5 parts of camel hair fiber are placed in the treatment solution and immersed at a temperature of 33-37°C. After modification for 1-3 hours, the fiber is filtered and washed with water 2-4 times to obtain the modified camel hair fiber.

5. The high-elastic quick-drying fabric according to claim 1, characterized in that: The moisture absorbent is a mixture of sericin and konjac glucomannan in a mass ratio of (1-3):

1.

6. The high-elastic quick-drying fabric according to claim 1, characterized in that: The softener is a mixture of dioctadecyl dimethyl ammonium chloride and epoxy modified betaine in a mass ratio of (1-3):

1.

7. The high-elastic quick-drying fabric according to claim 6, characterized in that: The preparation method of the epoxy-modified betaine comprises the following steps: adding 10-15 parts by mass of oleyl betaine, 3.1-4.7 parts by mass of 3,4-epoxy-1-butene, and 2-5 parts by mass of a 6-12% by mass solution of chloroplatinic acid in a high-pressure stirred autoclave while introducing nitrogen; then adding 100-150 parts by mass of 200# solvent oil, 6-12 parts by mass of 2,4,6,8-tetramethylcyclotetrasiloxane, and 0.5-2.1 parts by mass of N-allyl-N'-ethylurea; controlling the temperature at 55-65°C, stirring and reacting for 2-5 hours; and removing the 200# solvent oil by reduced pressure distillation to obtain the epoxy-modified betaine softener.

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

9. The method for preparing the high-elastic quick-drying fabric according to claim 1, characterized in that: Follow these steps: (1) According to the weight ratio, take 20-40 parts of modified natural fiber, 20-40 parts of polyester, 40-80 parts of spandex, 3-8 parts of moisture absorbent, 3-5 parts of softener, and 3-5 parts of antibacterial agent, add 100-200 parts of water, stir for 10-20 minutes, and mix well; (2) drying at 90-120°C for 24-36 hours, and then melt-spinning through a shaped spinneret at 220-240°C to form raw silk; (3) The raw yarn prepared in step (2) is wound, doffed, balanced, bundled, guided, pre-stretched and oiled, then stretched once or twice, and finally subjected to tension heat setting, curling, relaxation heat setting, and cutting to obtain a mixed fiber; (4) Use machine weaving to weave the mixed fibers into highly elastic and quick-drying fabrics.

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