A breathable and cool-sensation comfortable fabric and its preparation process

Abstract

The present invention discloses a breathable and cool-sensing comfortable fabric and its preparation process, belonging to the technical field of textile fabric preparation. It includes the following steps: reacting bamboo fiber, hydrogen peroxide, hydrochloric acid, and chitosan to prepare a bamboo fiber preform; reacting N-isopropylacrylamide, deionized water, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine to prepare a gel solution; reacting the bamboo fiber preform, the gel solution, 3-fluoropyridine-4-boronic acid, and dimethyl fumarate to prepare a modified bamboo fiber; reacting 1,3-bis(3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide to prepare a hydroxyl-terminated silicone oil; reacting polyethylene glycol, isophorone diisocyanate, and dibutyltin dilaurate, and adding a crosslinking agent 202 to prepare a polyurethane emulsion; reacting the polyurethane emulsion, the hydroxyl-terminated silicone oil, and deionized water to prepare a modified polyurethane emulsion; preparing a breathable and cool-sensing comfortable fabric.

Description

Technical Field

[0001] The present invention belongs to the technical field of textile fabric preparation, and particularly relates to a breathable and cool-sensing comfortable fabric and a preparation process thereof. Background Art

[0002] High temperatures frequently occur in summer, and the comfort of clothing in a hot environment has attracted much attention. Lightweight, breathable, and cool functional fabrics can better meet the clothing needs in high-temperature and high-humidity environments, and thus have become a hot spot in the development of summer and sportswear fabrics. As a synthetic fabric, spandex has a relatively high elastic modulus and tensile strength, endowing it with excellent wear resistance. The molecular structure of spandex fibers is relatively compact. Compared with natural fibers such as cotton and linen, the pore size of spandex fibers is smaller and the layout is denser, resulting in poor breathability of textiles. In addition, due to the high density and elastic properties of spandex fibers, it is difficult to form a good air circulation during wearing, resulting in the retention of sweat and body temperature between the clothing and the skin, making the body unable to effectively dissipate heat and evaporate moisture, increasing the stuffy feeling during wearing, causing a feeling of airtightness, and being prone to breeding bacteria and generating odors, thus giving the wearer a poor body feeling and poor comfort. Summary of the Invention

[0003] The present invention discloses a breathable and cool-sensing comfortable fabric and a preparation process thereof, belonging to the technical field of textile fabric preparation. The method comprises the following steps: reacting bamboo fiber, hydrogen peroxide, hydrochloric acid, and chitosan to prepare a bamboo fiber preform; reacting N-isopropylacrylamide, deionized water, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine to prepare a gel solution; reacting the bamboo fiber preform, the gel solution, 3-fluoropyridine-4-boric acid, and dimethyl fumarate to prepare a modified bamboo fiber; reacting 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide to prepare a hydroxyl-terminated silicone oil; reacting polyethylene glycol, isophorone diisocyanate, and dibutyltin dilaurate, adding a crosslinking agent 202, to prepare a polyurethane emulsion; reacting the polyurethane emulsion, the hydroxyl-terminated silicone oil, and deionized water to prepare a modified polyurethane emulsion; and preparing the breathable and cool-sensing comfortable fabric.

[0004] The technical problem to be solved by the present invention is to improve the breathability of spandex, endow spandex with breathable, cool-sensing, and comfortable characteristics, and improve the comfort of the wearer.

[0005] The object of the present invention can be achieved by the following technical solutions:

[0006] A preparation process of a breathable and cool-sensing comfortable fabric comprises the following steps:

[0007] (1) Mixing and reacting bamboo fiber, hydrogen peroxide, and hydrochloric acid aqueous solution, adding chitosan, ultrasonically mixing, filtering, washing, and drying to obtain a bamboo fiber preform;

[0008] (2) Add N-isopropylacrylamide and deionized water into the polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere. After the reaction, add calcium chloride solution, let it stand for 24 h, take out the sample, and soak it in deionized water for 48 h to obtain the gel solution;

[0009] (3) Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, stir for 5-8 h, add dimethyl fumarate, and ultrasonically mix for 0.5-1 h under an ice bath condition of 0-5 °C to obtain the modified bamboo fiber;

[0010] (4) Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, and raise the temperature to 120 °C to react for 2 h to obtain the hydroxyl-terminated silicone oil;

[0011] (5) Add polyethylene glycol into the reactor, dehydrate it under vacuum at 120 °C for 2 h, cool it down to 60-70 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinking agent 202, and control the temperature to react for 1 h to obtain the polyurethane emulsion;

[0012] (6) Mix and heat-react the polyurethane emulsion and the hydroxyl-terminated silicone oil, add deionized water, and stir to obtain the modified polyurethane emulsion;

[0013] (7) Perform electrospinning on the modified polyurethane emulsion, cure it, collect and arrange it to obtain the modified polyurethane fiber;

[0014] (8) Prepare the modified bamboo fiber into the modified bamboo fiber yarn, prepare the modified polyurethane fiber into the modified polyurethane fiber yarn, and then textile the modified bamboo fiber yarn and the modified polyurethane fiber yarn to obtain the breathable and cool-sensing comfortable fabric.

[0015] As a preferred technical solution of the present invention, in step (1), the mass ratio of the bamboo fiber, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1-2:0.5-0.8:1:0.15-0.25; the time of ultrasonic mixing is 25-45 min; the concentration of the hydrochloric acid aqueous solution is 2-4 mol / L.

[0016] As a preferred technical solution of the present invention, in step (2), the stirring refers to stirring at a rotation speed of 350-380 rpm for 30-60 min; the time of introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0017] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5-10 g: 20 mL: 50 mL: 20-120 mg: 6 μL.

[0018] As a preferred technical solution of the present invention, in step (3), the mass ratio of the bamboo fiber preform, the gel solution, 3-fluoropyridine-4-boric acid, and dimethyl fumarate is 1-2: 5-10: 0.1-0.3: 0.5-0.8.

[0019] As a preferred technical solution of the present invention, in step (4), the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5-1: 1-2: 0.2-0.4: 0.01-0.02.

[0020] As a preferred technical solution of the present invention, in step (5), the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinking agent 202 is 1: 1: 0.02-0.06: 0.1-0.3.

[0021] As a preferred technical solution of the present invention, in step (6), the dosage ratio of the polyurethane emulsion, the hydroxyl-terminated silicone oil, and deionized water is 1 mol: 1 mol: 50-100 ml.

[0022] As a preferred technical solution of the present invention, in step (8), the mass ratio of the modified bamboo fiber and the modified polyurethane fiber is 1-2: 3-5.

[0023] As a preferred technical solution of the present invention, in step (6), the heating reaction refers to mixing the polyurethane emulsion and the hydroxyl-terminated silicone oil at 80°C and reacting for 4 h, and the stirring refers to stirring at 120°C for 2-3 min.

[0024] A breathable, cool and comfortable fabric prepared by using the above preparation process.

[0025] The beneficial effects of the present invention:

[0026] The breathable, cool and comfortable fabric and its preparation process disclosed by the present invention are a breathable, cool and comfortable fabric woven by mixing amide gel-modified bamboo fiber and modified polyurethane fiber. By introducing amide gel bamboo fiber, it has excellent wrinkle resistance and drying speed, improves the breathable performance and antibacterial performance of the fabric, keeps the fabric dry and odorless, and improves the comfort of the wearing experience.

[0027] Furthermore, since bamboo fiber is prone to shrinkage, a network-like amide gel is introduced to form strong chemical bonds with the fiber structure of bamboo fiber to lock the cellulose molecular chains, reducing the shrinkage of bamboo fiber fabric;

[0028] Furthermore, although bamboo fiber has certain antibacterial effects, it is not a broad-spectrum antibacterial material. Therefore, to improve the antibacterial performance of the fabric, prevent bacteria from breeding and causing unpleasant odors in the fabric, and reduce the comfort of the wearer, a broad-spectrum antibacterial agent is added to improve the antibacterial effect of the fabric; however, the adhesion effect of the antibacterial agent on bamboo fiber is poor, resulting in a reduced antibacterial effect. By using the low-temperature swelling property of amide gel, the antibacterial agent is attached to the pores of the gel under ice bath conditions, improving the adhesion of the antibacterial agent and enhancing the antibacterial effect;

[0029] Furthermore, polyurethane is modified by adding hydroxyl-terminated silicone oil. The hydroxyl functional group reacts with isocyanate to form chemical bonds, firmly connecting the hydroxyl-terminated silicone oil and polyurethane together, making the surface of the prepared fabric smoother, softer, wrinkle-resistant, improving air circulation, and enhancing the cool feeling comfort performance. Specific Embodiments

[0030] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following examples are used to detail the specific embodiments, structures, features, and their effects of the present invention.

[0031] Example 1

[0032] Preparation of breathable and cool feeling comfort fabric:

[0033] (1) Bamboo fiber, hydrogen peroxide, and hydrochloric acid aqueous solution are mixed and reacted, chitosan is added, ultrasonically mixed, filtered, washed, and dried to obtain a bamboo fiber preform; the mass ratio of bamboo fiber, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1:0.5:1:0.15; the time of ultrasonic mixing is 25 min; the concentration of the hydrochloric acid aqueous solution is 2 mol / L;

[0034] (2) N-isopropylacrylamide and deionized water are added to a polymerization kettle, stirred, nitrogen is introduced into the polymerization kettle, ammonium persulfate and N,N,N,N-tetramethylethylenediamine are added, and the reaction is carried out under a nitrogen atmosphere. After the reaction is completed, a calcium chloride solution is added, and the mixture is allowed to stand for 24 h. The sample is taken out and soaked in deionized water for 48 h to obtain a gel solution;

[0035] The stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time for introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0036] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 g: 20 mL: 50 mL: 20 mg: 6 μL;

[0037] (3) Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, stir for 5 h, add dimethyl fumarate, and ultrasonically mix for 1 h under the condition of an ice bath at 0 °C to obtain modified bamboo fibers; the mass ratio of the bamboo fiber preform, gel solution, 3-fluoropyridine-4-boric acid, and dimethyl fumarate is 1: 5: 0.1: 0.5;

[0038] (4) Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, and raise the temperature to 120 °C and react for 2 h to obtain hydroxyl-terminated silicone oil; the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5: 1: 0.2: 0.01;

[0039] (5) Add polyethylene glycol to the reactor, dehydrate under vacuum at 120 °C for 2 h, cool down to 60 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinking agent 202, and control the temperature to react for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinking agent 202 is 1: 1: 0.02: 0.1;

[0040] (6) Mix and heat the polyurethane emulsion and the hydroxyl-terminated silicone oil to react, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol: 1 mol: 50 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and the hydroxyl-terminated silicone oil at 80 °C for 4 h, and the stirring refers to stirring at 120 °C for 2 min;

[0041] (7) Perform jet spinning on the modified polyurethane emulsion, cure it, and collect and arrange it to obtain modified polyurethane fibers;

[0042] (8) Prepare modified bamboo fiber yarns from the modified bamboo fibers, prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then perform textile on the modified bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers and the modified polyurethane fibers is 1: 3.

[0043] Example 2

[0044] Preparation of breathable and cool-sensing comfortable fabric:

[0045] (1) Mix bamboo fiber, hydrogen peroxide, and hydrochloric acid aqueous solution for reaction, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of the bamboo fiber, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1.5:0.65:1:0.2; the time of ultrasonic mixing is 35 min; the concentration of the hydrochloric acid aqueous solution is 3 mol / L;

[0046] (2) Add N-isopropylacrylamide and deionized water to a polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction is completed, add calcium chloride solution, let stand for 24 h, take out the sample, and soak it in deionized water for 48 h to obtain a gel solution;

[0047] The stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time of introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0048] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 5.5 g:20 mL:50 mL:80 mg:6 μL;

[0049] (3) Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boronic acid, stir for 6.5 h, add dimethyl fumarate, and mix ultrasonically for 0.75 h under an ice bath condition at 2°C to obtain modified bamboo fiber; the mass ratio of the bamboo fiber preform, gel solution, 3-fluoropyridine-4-boronic acid, and dimethyl fumarate is 1.5:7:0.2:0.65;

[0050] (4) Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85°C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, and raise the temperature to 120°C for reaction for 2 h to obtain hydroxyl-terminated silicone oil; the mass ratio of the 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.7:1.5:0.3:0.015;

[0051] (5) Add polyethylene glycol into a reactor, dehydrate it under vacuum at 120°C for 2 h, cool down to 65°C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70°C for 2 h, add crosslinker 202, and control the temperature for reaction for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1:1:0.04:0.2;

[0052] (6) Mix and heat the polyurethane emulsion and hydroxyl-terminated silicone oil for reaction, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol:1 mol:75 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and hydroxyl-terminated silicone oil at 80°C for 4 h, and the stirring refers to stirring at 120°C for 2.5 min;

[0053] (7) Perform electrospinning on the modified polyurethane emulsion, cure it, collect and finish it to obtain modified polyurethane fibers;

[0054] (8) Prepare modified bamboo fiber yarns from the modified bamboo fibers, prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then textile the modified bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers to the modified polyurethane fibers is 1.5:4.

[0055] Example 3

[0056] Preparation of breathable and cool-sensing comfortable fabric:

[0057] (1) Mix and react bamboo fibers, hydrogen peroxide, and hydrochloric acid aqueous solution, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of bamboo fibers, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 2:0.8:1:0.25; the time of ultrasonic mixing is 45 min; the concentration of the hydrochloric acid aqueous solution is 4 mol / L;

[0058] (2) Add N-isopropylacrylamide and deionized water into a polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction is completed, add calcium chloride solution, let it stand for 24 h, take out the sample, and soak it in deionized water for 48 h to obtain a gel solution;

[0059] The stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time of introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0060] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 10 g: 20 mL: 50 mL: 120 mg: 6 μL;

[0061] (3) Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, stir for 8 h, add dimethyl fumarate, and ultrasonically mix for 0.5 h under the condition of a 5°C ice bath to obtain modified bamboo fibers; the mass ratio of the bamboo fiber preform, gel solution, 3-fluoropyridine-4-boric acid, and dimethyl fumarate is 2: 10: 0.3: 0.8;

[0062] (4) Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85°C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, and raise the temperature to 120°C and react for 2 h to obtain hydroxyl-terminated silicone oil; the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 1: 2: 0.4: 0.02;

[0063] (5) Add polyethylene glycol to the reactor, dehydrate under vacuum at 120°C for 2 h, cool down to 70°C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70°C for 2 h, add crosslinker 202, and control the temperature to react for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1: 1: 0.06: 0.3;

[0064] (6) Mix and heat the polyurethane emulsion and the hydroxyl-terminated silicone oil to react, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol: 1 mol: 100 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and the hydroxyl-terminated silicone oil at 80°C for 4 h, and the stirring refers to stirring at 120°C for 3 min;

[0065] (7) Perform electrospinning on the modified polyurethane emulsion, cure it, collect and arrange it to obtain modified polyurethane fibers;

[0066] (8) Prepare modified bamboo fiber yarns from the modified bamboo fibers and prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then textile the modified bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers and the modified polyurethane fibers is 2: 5.

[0067] Comparative Example 1

[0068] Preparation of polyurethane fabric:

[0069] Add polyethylene glycol into a reactor, dehydrate under vacuum at 120°C for 2 h, cool down to 60°C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70°C for 2 h, add crosslinker 202, and control the temperature for reaction for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1:1:0.02:0.1;

[0070] Perform electrospinning on the polyurethane emulsion, cure it, collect and finish it to obtain polyurethane fibers; prepare polyurethane fiber yarns from the polyurethane fibers, and then obtain the polyurethane fabric after weaving the polyurethane fiber yarns.

[0071] Comparative Example 2

[0072] Preparation of breathable, cool-sensation and comfortable fabric:

[0073] Add polyethylene glycol into a reactor, dehydrate under vacuum at 120°C for 2 h, cool down to 60°C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70°C for 2 h, add crosslinker 202, and control the temperature for reaction for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1:1:0.02:0.1;

[0074] Perform electrospinning on the polyurethane emulsion, cure it, collect and finish it to obtain polyurethane fibers;

[0075] Prepare bamboo fiber yarns from bamboo fibers and polyurethane fiber yarns from the polyurethane fibers, and then obtain the breathable, cool-sensation and comfortable fabric after weaving the bamboo fiber yarns and the polyurethane fiber yarns; the mass ratio of bamboo fibers to polyurethane fibers is 1:3.

[0076] Comparative Example 3

[0077] Preparation of breathable, cool-sensation and comfortable fabric:

[0078] Mix bamboo fibers, hydrogen peroxide, and hydrochloric acid aqueous solution for reaction, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of bamboo fibers, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1:0.5:1:0.15; the time of ultrasonic mixing is 25 min; the concentration of the hydrochloric acid aqueous solution is 2 mol / L;

[0079] Add N-isopropylacrylamide and deionized water to the polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction is completed, add calcium chloride solution, let stand for 24 h, take out the sample, soak it in deionized water for 48 h to obtain a gel solution;

[0080] The stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time for introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0081] The dosage ratio of N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 g:20 mL:50 mL:20 mg:6 μL;

[0082] Soak the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boronic acid, stir for 5 h to obtain modified bamboo fiber; the mass ratio of the bamboo fiber preform, gel solution, and 3-fluoropyridine-4-boronic acid is 1:5:0.1;

[0083] Add polyethylene glycol to the reactor, dehydrate under vacuum at 120 °C for 2 h, cool down to 60 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinking agent 202, control the temperature and react for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinking agent 202 is 1:1:0.02:0.1;

[0084] Perform electrospinning on the polyurethane emulsion, cure, collect and arrange to obtain polyurethane fibers;

[0085] Prepare modified bamboo fiber yarns from the modified bamboo fibers and polyurethane fiber yarns from the polyurethane fibers, and then textile the modified bamboo fiber yarns and the polyurethane fiber yarns to obtain the breathable cool-sensation comfortable fabric; the mass ratio of the modified bamboo fibers to the polyurethane fibers is 1:3.

[0086] Comparative Example 4

[0087] Preparation of breathable cool-sensation comfortable fabric:

[0088] Mix bamboo fibers, hydrogen peroxide, and hydrochloric acid aqueous solution for reaction, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of bamboo fibers, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1:0.5:1:0.15; the time for ultrasonic mixing is 25 min; the concentration of the hydrochloric acid aqueous solution is 2 mol / L;

[0089] Add N-isopropylacrylamide and deionized water to the polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction is completed, add calcium chloride solution, let stand for 24 h, take out the sample, soak it in deionized water for 48 h to obtain a gel solution;

[0090] The stirring refers to stirring at a rotation speed of 350-380 rpm for 30-60 min; the time for introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0091] The dosage ratio of N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 g: 20 mL: 50 mL: 20 mg: 6 μL;

[0092] Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, stir for 5 h, add dimethyl fumarate, and ultrasonically mix for 1 h under an ice bath condition at 0 °C to obtain modified bamboo fibers; the mass ratio of the bamboo fiber preform, gel solution, 3-fluoropyridine-4-boric acid, and dimethyl fumarate is 1: 5: 0.1: 0.5;

[0093] Add polyethylene glycol to the reactor, dehydrate under vacuum at 120 °C for 2 h, cool down to 60 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinking agent 202, and control the temperature to react for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinking agent 202 is 1: 1: 0.02: 0.1;

[0094] Perform electrospinning on the polyurethane emulsion, cure, collect and arrange to obtain polyurethane fibers;

[0095] Prepare modified bamboo fiber yarns from the modified bamboo fibers and prepare polyurethane fiber yarns from the polyurethane fibers, and then textile the modified bamboo fiber yarns and the polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers to the polyurethane fibers is 1: 3.

[0096] Comparative Example 5

[0097] Preparation of breathable and cool-sensing comfortable fabric:

[0098] Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, raise the temperature to 120 °C and react for 2 h to obtain hydroxyl-terminated silicone oil; the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5:1:0.2:0.01;

[0099] Add polyethylene glycol to the reactor, dehydrate under vacuum at 120 °C for 2 h, cool down to 60 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinker 202, control the temperature and react for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1:1:0.02:0.1;

[0100] Mix and heat the polyurethane emulsion and the hydroxyl-terminated silicone oil to react, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol:1 mol:50 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and the hydroxyl-terminated silicone oil at 80 °C for 4 h, and the stirring refers to stirring at 120 °C for 2 min;

[0101] Perform electrospinning on the modified polyurethane emulsion, cure it, collect and arrange it to obtain modified polyurethane fibers;

[0102] Prepare the modified polyurethane fiber into a modified polyurethane fiber yarn, and then perform textile on the modified polyurethane fiber yarn to obtain the breathable and cool-sensing comfortable fabric.

[0103] Comparative Example 6

[0104] Preparation of breathable and cool-sensing comfortable fabric:

[0105] Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, raise the temperature to 120 °C and react for 2 h to obtain hydroxyl-terminated silicone oil; the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5:1:0.2:0.01;

[0106] Add polyethylene glycol into a reactor, dehydrate it under vacuum at 120°C for 2 h, cool down to 60°C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70°C for 2 h, add crosslinker 202, and control the temperature for reaction for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1:1:0.02:0.1;

[0107] Mix and heat the polyurethane emulsion and hydroxyl-terminated silicone oil for reaction, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol:1 mol:50 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and hydroxyl-terminated silicone oil at 80°C for 4 h, and the stirring refers to stirring at 120°C for 2 min;

[0108] Perform electrospinning on the modified polyurethane emulsion, cure it, collect and finish it to obtain modified polyurethane fibers;

[0109] Prepare bamboo fiber yarns from bamboo fibers, prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then textile the bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of bamboo fibers to modified polyurethane fibers is 1:3.

[0110] Comparative Example 7

[0111] Preparation of breathable and cool-sensing comfortable fabric:

[0112] Mix and react bamboo fibers, hydrogen peroxide, and hydrochloric acid aqueous solution, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of bamboo fibers, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1:0.5:1:0.15; the time of ultrasonic mixing is 25 min; the concentration of the hydrochloric acid aqueous solution is 2 mol / L;

[0113] Add N-isopropylacrylamide and deionized water into a polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction is completed, add a calcium chloride solution, let it stand for 24 h, take out the sample, and soak it in deionized water for 48 h to obtain a gel solution;

[0114] The stirring refers to stirring at a speed of 350 - 380 rpm for 30 - 60 min; the time of introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0115] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 g: 20 mL: 50 mL: 20 mg: 6 μL;

[0116] Soak the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, and stir for 5 h to obtain modified bamboo fibers; the mass ratio of the bamboo fiber preform, gel solution, and 3-fluoropyridine-4-boric acid is 1: 5: 0.1;

[0117] Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and di-n-butylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, and raise the temperature to 120 °C and react for 2 h to obtain hydroxyl-terminated silicone oil; the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5: 1: 0.2: 0.01;

[0118] Add polyethylene glycol to the reactor, dehydrate under vacuum at 120 °C for 2 h, cool down to 60 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinker 202, and control the temperature to react for 1 h to obtain a polyurethane emulsion; the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1: 1: 0.02: 0.1;

[0119] Mix and heat the polyurethane emulsion and the hydroxyl-terminated silicone oil to react, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol: 1 mol: 50 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and the hydroxyl-terminated silicone oil at 80 °C for 4 h, and the stirring refers to stirring at 120 °C for 2 min;

[0120] Perform electrospinning on the modified polyurethane emulsion, cure it, collect and finish it to obtain modified polyurethane fibers;

[0121] Prepare modified bamboo fiber yarns from the modified bamboo fibers, prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then perform textile on the modified bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers to the modified polyurethane fibers is 1: 3.

[0122] Comparative Example 8

[0123] Preparation of the breathable and cool-sensing comfortable fabric:

[0124] Mix bamboo fibers, hydrogen peroxide, and hydrochloric acid aqueous solution for reaction, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of the bamboo fibers, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1:0.5:1:0.15; the time for ultrasonic mixing is 25 min; the concentration of the hydrochloric acid aqueous solution is 2 mol / L;

[0125] Add N-isopropylacrylamide and deionized water to a polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction ends, add calcium chloride solution, let stand for 24 h, take out the sample, and soak it in deionized water for 48 h to obtain a gel solution;

[0126] The stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time for introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0127] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 g:20 mL:50 mL:20 mg:6 μL;

[0128] Soak the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boronic acid, and stir for 5 h to obtain a bamboo fiber intermediate. Soak the bamboo fiber intermediate in dimethyl fumarate for 10 - 20 h, and dry it to obtain modified bamboo fibers; the mass ratio of the bamboo fiber preform, gel solution, and 3-fluoropyridine-4-boronic acid is 1:5:0.1;

[0129] Add polyethylene glycol to a reactor, dehydrate it under vacuum at 120°C for 2 h, cool down to 60°C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70°C for 2 h, add crosslinker 202, and control the temperature for reaction for 1 h to obtain a polyurethane emulsion; the mass ratio of the polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinker 202 is 1:1:0.02:0.1;

[0130] Perform jet spinning on the polyurethane emulsion, cure it, collect and finish it to obtain polyurethane fibers;

[0131] Prepare modified bamboo fiber yarns from the modified bamboo fibers, prepare polyurethane fiber yarns from the polyurethane fibers, and then textile the modified bamboo fiber yarns and the polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers to the polyurethane fibers is 1:3.

[0132] Comparative Example 9

[0133] Preparation of breathable and cool-sensing comfortable fabric:

[0134] (1) Mix bamboo fiber, hydrogen peroxide, and hydrochloric acid aqueous solution for reaction, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; the mass ratio of the bamboo fiber, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1:0.5:1:0.15; the time of ultrasonic mixing is 25 min; the concentration of the hydrochloric acid aqueous solution is 2 mol / L;

[0135] (2) Add N-isopropylacrylamide and deionized water to a polymerization kettle, stir, pass nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction ends, add a calcium chloride solution, let stand for 24 h, take out the sample, and soak it in deionized water for 48 h to obtain a gel solution;

[0136] The stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time of passing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL;

[0137] The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 g:20 mL:50 mL:20 mg:6 μL;

[0138] (3) Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, and stir for 5 h to obtain a bamboo fiber intermediate, immerse the bamboo fiber intermediate in dimethyl fumarate for 10 - 20 h, and dry it to obtain a modified bamboo fiber; the mass ratio of the bamboo fiber preform, gel solution, and 3-fluoropyridine-4-boric acid is 1:5:0.1;

[0139] (4) Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and dibutylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, and raise the temperature to 120 °C to react for 2 h to obtain a hydroxyl-terminated silicone oil; the mass ratio of the 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, dibutylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5:1:0.2:0.01;

[0140] (5) Add polyethylene glycol to a reactor, dehydrate it under vacuum at 120 °C for 2 h, cool it to 60 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinking agent 202, and control the temperature to react for 1 h to obtain a polyurethane emulsion; the mass ratio of the polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinking agent 202 is 1:1:0.02:0.1;

[0141] (6) Mix the polyurethane emulsion and the hydroxyl-terminated silicone oil, heat them for reaction, add deionized water, and stir to obtain a modified polyurethane emulsion; the dosage ratio of the polyurethane emulsion, the hydroxyl-terminated silicone oil, and the deionized water is 1 mol: 1 mol: 50 ml; the heating reaction refers to mixing and reacting the polyurethane emulsion and the hydroxyl-terminated silicone oil at 80 °C for 4 h, and the stirring refers to stirring at 120 °C for 2 min;

[0142] (7) Perform electrospinning on the modified polyurethane emulsion, cure it, collect and finish it to obtain modified polyurethane fibers;

[0143] (8) Prepare modified bamboo fiber yarns from the modified bamboo fibers, prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then textile the modified bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable and cool-sensing comfortable fabric; the mass ratio of the modified bamboo fibers to the modified polyurethane fibers is 1:3.

[0144] Performance test

[0145] Conduct air permeability tests in accordance with the standard GB / T 5453-1997;

[0146] Conduct cool-sensing performance tests in accordance with the standard GB / T 35263-2017;

[0147] Conduct antibacterial performance tests in accordance with the standard GB / T 39104.2-2020.

[0148] Perform performance tests on the fabrics obtained in Examples 1-3 and Comparative Examples 1-9 prepared on the basis of Example 1 in accordance with the above standards, and the test results are shown in Table 1 below:

[0149] Table 1

[0150]

[0151]

[0152] It can be seen from Table 1 that the fabric prepared in Comparative Example 1 has the worst antibacterial performance. The fabrics prepared in Comparative Examples 2, 5, and 6 have relatively poor antibacterial performance, but their antibacterial performance is better than that of Comparative Example 1. The antibacterial performance of Comparative Examples 3, 7, 8, and 9 is lower than that of Example 1;

[0153] The fabric prepared in Comparative Example 1 has the worst air permeability, resulting in the worst cool-sensing performance; the air permeability of the fabrics obtained in Comparative Examples 5, 2, 3, 6, 8, 9, 4, and 7 increases in turn, so that the cool-sensing performance of the fabrics obtained in Comparative Examples 5, 2, 3, 6, 8, 9, 4, and 7 improves in turn.

[0154] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A preparation process of a breathable and cool-sensation comfortable fabric, characterized in that, It includes the following steps: (1) Mix bamboo fiber, hydrogen peroxide, and hydrochloric acid aqueous solution for reaction, add chitosan, mix ultrasonically, filter, wash, and dry to obtain a bamboo fiber preform; (2) Add N-isopropylacrylamide and deionized water to a polymerization kettle, stir, introduce nitrogen into the polymerization kettle, add ammonium persulfate and N,N,N,N-tetramethylethylenediamine, react under a nitrogen atmosphere, after the reaction ends, add calcium chloride solution, let stand for 24 h, take out the sample, soak in deionized water for 48 h to obtain a gel solution; (3) Immerse the bamboo fiber preform in the gel solution, add 3-fluoropyridine-4-boric acid, stir for 5 - 8 h, add dimethyl fumarate, and ultrasonically mix for 0.5 - 1 h under an ice bath condition of 0 - 5 °C to obtain modified bamboo fiber; (4) Mix 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and dibutylamine, react at 85 °C for 4 h, add octamethylcyclotetrasiloxane and tetramethylammonium hydroxide, raise the temperature to 120 °C and react for 2 h to obtain hydroxyl-terminated silicone oil; (5) Add polyethylene glycol to a reactor, dehydrate under vacuum at 120 °C for 2 h, cool down to 60 - 70 °C, add isophorone diisocyanate and dibutyltin dilaurate, react at 70 °C for 2 h, add crosslinking agent 202, control the temperature and react for 1 h to obtain a polyurethane emulsion; (6) Mix and heat-react the polyurethane emulsion and the hydroxyl-terminated silicone oil, add deionized water, and stir to obtain a modified polyurethane emulsion; (7) Perform electrospinning on the modified polyurethane emulsion, cure, collect and finish to obtain modified polyurethane fibers; (8) Prepare modified bamboo fiber yarns from the modified bamboo fibers, prepare modified polyurethane fiber yarns from the modified polyurethane fibers, and then textile the modified bamboo fiber yarns and the modified polyurethane fiber yarns to obtain the breathable, cool-sensation and comfortable fabric.

2. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, wherein, In step (1), the mass ratio of the bamboo fiber, hydrogen peroxide, hydrochloric acid aqueous solution, and chitosan is 1 - 2:0.5 - 0.8:1:0.15 - 0.25; the time of ultrasonic mixing is 25 - 45 min; the concentration of the hydrochloric acid aqueous solution is 2 - 4 mol / L.

3. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, characterized in that, In step (2), the stirring refers to stirring at a rotation speed of 350 - 380 rpm for 30 - 60 min; the time of introducing nitrogen into the polymerization kettle is 30 min; the mass concentration of the calcium chloride solution is 0.1 g / mL; The dosage ratio of the N-isopropylacrylamide, deionized water, calcium chloride solution, ammonium persulfate, and N,N,N,N-tetramethylethylenediamine is 2.5 - 10 g:20 mL:50 mL:20 - 120 mg:6 μL.

4. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, characterized in that, In step (3), the mass ratio of the bamboo fiber preform, gel solution, 3-fluoropyridine-4-boric acid, and dimethyl fumarate is 1 - 2:5 - 10:0.1 - 0.3:0.5 - 0.

8.

5. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, characterized in that, In step (4), the mass ratio of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane, di-n-butylamine, octamethylcyclotetrasiloxane, and tetramethylammonium hydroxide is 0.5-1:1-2:0.2-0.4:0.01-0.

02.

6. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, wherein, In step (5), the mass ratio of polyethylene glycol, isophorone diisocyanate, dibutyltin dilaurate, and crosslinking agent 202 is 1:1:0.02-0.06:0.1-0.

3.

7. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, characterized in that, In step (6), the dosage ratio of the polyurethane emulsion, hydroxyl-terminated silicone oil, and deionized water is 1 mol:1 mol:50-100 ml.

8. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, characterized in that, In step (8), the mass ratio of the modified bamboo fiber to the modified polyurethane fiber is 1-2:3-5.

9. The preparation process of a breathable and cool-sensation comfortable fabric according to claim 1, characterized in that, In step (6), the heating reaction refers to mixing the polyurethane emulsion and hydroxyl-terminated silicone oil at 80°C and reacting for 4 h, and the stirring refers to stirring at 120°C for 2-3 min.

10. A breathable, cool-sensation and comfortable fabric prepared by the preparation process according to any one of claims 1-9.

Images