Lightweight warm and comfortable clothing fabric and method of making same

Abstract

The application discloses a light warm comfortable clothing fabric and a preparation method thereof, and belongs to the technical field of textile fabrics; through content proportioning of various fibers, synergistic effects among materials are exerted, and reasonable compatibility design is achieved; on the basis of meeting the warm performance of the fabric, the unit area mass of the warm fabric is reduced, the purpose of light weight and high efficiency is achieved, and the comfort and the warmth of the fabric are improved; the modified graphene oxide of the application can be firmly attached to the surface of the fabric by reacting with the pretreated fabric gray cloth, so that the fabric cannot be easily peeled off from the surface of the fabric after multiple washes, and the fabric can maintain excellent warm, antistatic and antibacterial effects for a long time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile fabrics, in particular to a light-weight warm and comfortable clothing fabric and a preparation method thereof. BACKGROUND

[0002] In winter, people usually wear thicker clothes to keep warm, but wearing many thick clothes not only looks unattractive, but also is less comfortable, and sometimes causes inconvenience in movement. With the continuous improvement of people's living standards, higher requirements are put forward for the comfort and warmth of clothing.

[0003] Chinese patent document CN117822185A discloses a light-weight warm fabric and a preparation method thereof, comprising the following steps: A. weaving a base cloth by using a five-sandwich weaving method; B. sequentially performing boil bleaching treatment, washing treatment, neutralization treatment and dyeing treatment on the base cloth to obtain dyed base cloth; C. sequentially performing water washing and drying treatment, softening setting treatment and base setting heating treatment on the dyed base cloth to obtain intermediate base cloth; D. performing raising treatment on the intermediate base cloth to form nap on the surface of the intermediate base cloth to obtain the light-weight warm fabric; wherein the raising treatment is specifically performed by using a raising machine to perform multiple nap grabbing treatment on the intermediate base cloth, and the nap grabbing tension during the nap grabbing treatment is 10-20 N and the nap grabbing speed is 15-20 m / min. The preparation method of the light-weight warm fabric proposed in the present application has simple steps and strong operability, and ensures that the prepared light-weight warm fabric has low weight and high warmth, meeting the use requirements of the product. Although the fabric obtained by the method solves the problem of light weight and warmth, the method forms nap on the surface of the fabric, which is easy to generate static electricity in dry autumn and winter, causing discomfort of the body. SUMMARY

[0004] The main purpose of the present application is to provide a light-weight warm and comfortable clothing fabric and a preparation method thereof. The clothing fabric not only has light weight, warmth and comfort functions, but also has good antistatic and antibacterial properties.

[0005] To achieve the above-mentioned purpose, the present application provides a preparation method of a light-weight warm and comfortable clothing fabric, comprising the following steps:

[0006] S1 uniformly mixing cotton fibers, hemp fibers and bamboo fibers to obtain a premix;

[0007] S2 weaving the premix under the condition of 60-80 Nm / 2 strands to obtain a fabric base cloth;

[0008] S3 uniformly stirring and mixing a silane coupling agent containing amino groups and an ethanol aqueous solution to obtain a pre-soaking solution; then immersing the fabric base cloth in the pre-soaking solution, and then taking out and drying to obtain a pretreated fabric base cloth;

[0009] S4 applies the finishing agent to the surface of the pretreated fabric base cloth uniformly, and obtains the light warm and comfortable clothing fabric after heat curing.

[0010] Preferably, the mass ratio of the cotton fiber, the hemp fiber and the bamboo fiber in step S1 is 3-5:2-3:1.

[0011] Preferably, the concentration of the ethanol aqueous solution in step S3 is 40-60wt%, and the addition amount of the amino-containing silane coupling agent is 3-5% of the ethanol aqueous solution.

[0012] Preferably, the finishing agent in step S4 comprises the following components by weight: 5-10 parts of modified graphene, 20-30 parts of penetrating agent, 40-60 parts of water-based polyurethane, 5-10 parts of softening agent, and 50-100 parts of water.

[0013] Further preferably, the preparation method of the modified graphene oxide is as follows:

[0014] 1) ultrasonic dispersion of aluminum hydroxide and graphene oxide in water to obtain a dispersion liquid; transfer the dispersion liquid to a high-pressure reaction kettle with a polytetrafluoroethylene liner for hydrothermal reaction; after the reaction is completed, cool to room temperature, filter to obtain a gel-like substance, freeze-dry the gel-like substance and then sublimate in vacuum to obtain graphene oxide aerogel;

[0015] 2) add ammonia water to the dopamine hydrochloride aqueous solution, stir uniformly, then add graphene oxide aerogel, heat and react, cool and filter, collect the solid and dry to obtain polydopamine-coated graphene oxide aerogel;

[0016] 3) disperse the polydopamine-coated graphene oxide aerogel in a sodium dodecyl sulfonate aqueous solution, add NaOH aqueous solution to adjust the pH value, add carboxymethyl chitosan, heat and react; after the reaction is completed, cool, filter, collect the solid, wash the solid until the pH value of the filtrate is neutral, and then dry to obtain modified graphene oxide.

[0017] Preferably, the amount ratio of aluminum hydroxide to graphene oxide in step 1) is 1-3:3-5; the hydrothermal temperature is 160-200℃, and the hydrothermal reaction time is 10-12h.

[0018] Preferably, the concentration of the dopamine hydrochloride aqueous solution in step 2) is 20-30wt%, and the addition amount of the graphene oxide aerogel is 5-10% of the mass of the dopamine hydrochloride aqueous solution.

[0019] Preferably, the mass ratio of the polydopamine-coated graphene oxide aerogel to carboxymethyl chitosan in step 3) is 4-6:1-3.

[0020] Preferably, the penetrating agent in the step S4 is a mixture of one or more of cetrimide, polypyrrolidone, fatty alcohol polyoxyethylene ether.

[0021] Preferably, the softening agent in the step S4 is one or more of ethylene glycol, triethanolamine, glycerol, polyethylene glycol glycidyl ether.

[0022] Preferably, the coating amount of the finishing agent in the step S4 is 40-60g / m 2 .

[0023] Preferably, the heat curing temperature in the step S4 is 50-60℃, and the heat curing time is 2-3h.

[0024] Preferably, the preparation method of the finishing agent in the step S4 is as follows: the water-based polyurethane and the penetrating agent are added to water, stirred uniformly, then the modified graphene oxide is added, dispersed uniformly, and finally the softening agent is added, stirred uniformly, to obtain the finishing agent.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1. The present application plays the synergistic effect between various fiber contents, reasonably matches and designs, reduces the unit area mass of the warm-keeping fabric on the basis of meeting the warm-keeping performance of the fabric, achieves the purpose of light weight and high efficiency, and improves the comfort and warm-keeping performance of the fabric.

[0027] 2. The present application adds graphene oxide aerogel in the finishing agent, first, the graphene oxide aerogel has low thermal conductivity and high porosity, can effectively block heat transfer, can give the fabric light weight and heat insulation, and the improvement of the heat insulation performance can achieve better heat preservation effect; the hydrated aluminum oxide is fixed in the graphene oxide aerogel through hydrothermal treatment and then freeze-drying, which can support the graphene oxide aerogel and is not easy to break; secondly, the graphene oxide itself has excellent conductivity, can easily form a conductive network on the surface of the fabric, can quickly disperse the electric charge on the surface of the fabric, and thus improve the antistatic performance of the fabric; however, the graphene oxide is not firmly combined with the fabric and is easy to fall off, and on the other hand, the graphene oxide is not uniformly dispersed, resulting in weak antistatic performance of the fabric. The in-situ polymerization of polydopamine on the graphene oxide aerogel improves the affinity between the graphene oxide and the fiber, provides active groups, is beneficial to subsequent reactions, and improves the antistatic performance of the fabric; the graphene oxide coated with polydopamine is grafted with hydrophilic chitosan, which enhances the moisture absorption of the fabric, can form a thin water conductive layer on the surface of the fabric, forms a water channel from the inside to the surface, can accelerate the dispersion of electric charge, further improves the antistatic performance of the fabric, and also endows the fabric with certain antibacterial performance.

[0028] 3、The application introduces polydopamine and chitosan with biocompatibility on the surface of graphene oxide, which is conducive to improving the affinity between the fabric and the skin, thereby improving the skin-friendliness of the fabric, and the modified graphene oxide can be firmly attached to the surface of the fabric by reacting with the pretreated fabric gray cloth, so that the fabric will not easily peel off from the surface of the fabric after being washed for many times, and the fabric can maintain excellent warmth, antistatic and antibacterial effects for a long time. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below. If the specific conditions are not specified in the embodiments, the conventional conditions or the conditions recommended by the manufacturer are used. If the reagents or instruments used are not specified by the manufacturer, they are all conventional products that can be purchased on the market. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B scheme. In addition, the technical schemes of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical schemes appears contradictory or unachievable, it should be considered that the combination of technical schemes does not exist and is not within the protection scope required by the present application. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor are within the protection scope of the present application.

[0030] Part of the raw materials used in the present application are as follows:

[0031] Graphene oxide, model number SY-GO-S, particle size <5um, purchased from Beijing Meisitong Science and Technology Development Co., Ltd.

[0032] Aluminum hydroxide, brand AH-1, purchased from Zibo Yisheng Aluminum Co., Ltd.

[0033] Carboxymethyl chitosan, carboxylation degree 80%, purchased from Shanghai Zhongfeng Biological Technology Co., Ltd.

[0034] Example 1

[0035] A preparation method of a lightweight warm and comfortable clothing fabric, comprising the following steps:

[0036] S1 uniformly mix 80g of cotton fiber, 50g of hemp fiber and 20g of bamboo fiber to obtain a premix;

[0037] S2 weave the premix under the condition of 70Nm / 2 strands to obtain a fabric gray cloth;

[0038] S3 stirring 80g KH550 silane coupling agent, 2000mL 50wt% ethanol aqueous solution to obtain a pre-impregnation solution; then the fabric cloth is placed in the pre-impregnation solution for impregnation, the impregnation time is 2h, and the pretreated fabric cloth is obtained by drying;

[0039] S4 evenly coating the finishing agent on the surface of the pretreated fabric cloth, the coating amount of the finishing agent is 50g / m 2 , after 50℃ heat curing for 2h, the light warm and comfortable clothing fabric is obtained; the preparation method of the finishing agent is as follows: 50g water-based polyurethane and 26.3g polyvinylpyrrolidone are added into 80g water, stirred uniformly, then 8g modified graphene oxide is added, dispersed uniformly, finally 7.5g glycerol is added, stirred uniformly, to obtain the finishing agent.

[0040] The preparation method of the modified graphene oxide is as follows:

[0041] 1) 20g aluminum hydroxide, 80g graphene oxide is ultrasonically dispersed in 500mL water to obtain a dispersion liquid; the dispersion liquid is transferred to a polytetrafluoroethylene lined high-pressure reaction kettle for hydrothermal treatment, the hydrothermal temperature is 180℃, the hydrothermal reaction time is 12h, after the reaction is completed, it is cooled to room temperature, and a gel-like material is obtained by filtration, the gel-like material is freeze-dried at-40℃ for 24h, then vacuum sublimation is carried out at 30℃, and graphene oxide aerogel is obtained;

[0042] 2) 8mL 28wt% ammonia water is added to 80mL 25wt% dopamine hydrochloride aqueous solution, stirred uniformly, then 8g graphene oxide aerogel is added, reacted at 90℃ for 4h, cooled and filtered, and the solid is dried to obtain polydopamine coated graphene oxide aerogel;

[0043] 3) 5g polydopamine coated graphene oxide aerogel is dispersed in 200mL 10wt% sodium dodecyl sulfonate aqueous solution, 1mol / L NaOH aqueous solution is added to adjust the pH value to 9, 2.5g carboxymethyl chitosan is added, and reacted at 60℃ for 4h; after the reaction is completed, it is cooled, filtered, and the solid is collected, the solid is washed until the pH value of the filtrate is neutral, and then dried to obtain modified graphene oxide.

[0044] Example 2

[0045] A preparation method of a light warm and comfortable clothing fabric, comprising the following steps:

[0046] S1 mixing 60g cotton fiber, 40g hemp fiber and 20g bamboo fiber uniformly to obtain a premix;

[0047] S2 weaving the premix under the condition of 60Nm / 2 strands to obtain a fabric cloth;

[0048] S3 stirring 60 g of KH550 silane coupling agent, 2000 mL of 60wt% ethanol aqueous solution to obtain a pre-soaking solution; then the fabric gray cloth is placed in the pre-soaking solution for impregnation, the impregnation time is 1 h, and the pretreated fabric gray cloth is obtained by drying;

[0049] S4 evenly coating the finishing agent on the surface of the pretreated fabric gray cloth, the coating amount of the finishing agent is 40 g / m 2 , after 60℃ heat curing for 3h, the light warm and comfortable clothing fabric is obtained; the preparation method of the finishing agent in the S4 step is as follows: 40g of water-based polyurethane and 20g of cetraxate are added to 50g of water, stirred uniformly, then 5g of modified graphene oxide is added, dispersed uniformly, and finally 5g of triethanolamine is added, stirred uniformly, to obtain the finishing agent.

[0050] The preparation method of the modified graphene oxide is as follows:

[0051] 1) 10g of aluminum hydroxide and 30g of graphene oxide are ultrasonically dispersed in water to obtain a dispersion liquid; the dispersion liquid is transferred to a polytetrafluoroethylene lined high-pressure reaction kettle for hydrothermal treatment, the hydrothermal temperature is 160℃, the hydrothermal reaction time is 10h, after the reaction is completed, it is cooled to room temperature, and a gel-like material is obtained by filtration, the gel-like material is freeze-dried at-45℃ for 20h, then vacuum sublimation is carried out at 30℃, and graphene oxide aerogel is obtained;

[0052] 2) 5mL of 25wt% ammonia water is added to 100mL of 20wt% dopamine hydrochloride aqueous solution, stirred uniformly, then 6.5g of graphene oxide aerogel is added, reacted at 80℃ for 6h, cooled and filtered, and the solid material is dried to obtain polydopamine coated graphene oxide aerogel;

[0053] 3) 4g of polydopamine coated graphene oxide aerogel is dispersed in 200mL of 10wt% sodium dodecyl sulfonate aqueous solution, 1mol / L NaOH aqueous solution is added to adjust the pH value to 10, 1g of carboxymethyl chitosan is added, and reacted at 60℃ for 4h, after the reaction is completed, it is cooled, filtered, and the solid material is collected, the solid material is washed until the pH value of the filtrate is neutral, and then dried to obtain modified graphene oxide.

[0054] Example 3

[0055] A preparation method of a light warm and comfortable clothing fabric, comprising the following steps:

[0056] S1 mixing 100g of cotton fiber, 60g of hemp fiber and 20g of bamboo fiber uniformly to obtain a premix;

[0057] S2 weaving the premix under the condition of 80Nm / 2 strands to obtain fabric gray cloth;

[0058] S3 stirring 100 g KH550 silane coupling agent, 2000 mL 40wt% ethanol aqueous solution to obtain a pre-soaking solution; then the fabric is placed in the pre-soaking solution for 2h, and the pretreated fabric is obtained by drying;

[0059] S4 the finishing agent is uniformly coated on the surface of the pretreated fabric, and the coating amount of the finishing agent is 60g / m 2 , after 50℃ heat curing for 3h, the light warm and comfortable clothing fabric is obtained; the preparation method of the finishing agent in the S4 step is as follows: 60g water-based polyurethane and 30g fatty alcohol polyoxyethylene ether are added into 100g water, stirred uniformly, then 10g modified graphene oxide is added, dispersed uniformly, finally 10g polyethylene glycol glycidyl ether is added, stirred uniformly, to obtain the finishing agent.

[0060] The preparation method of the modified graphene oxide is as follows:

[0061] 1) 30g aluminum hydroxide, 50g graphene oxide is ultrasonically dispersed in water to obtain a dispersion liquid; the dispersion liquid is transferred to a high-pressure reaction kettle with polytetrafluoroethylene lining for hydrothermal treatment, the hydrothermal temperature is 200℃, the hydrothermal reaction time is 12h, after the reaction is completed, it is cooled to room temperature, and the gel-like material is obtained by filtration, then the gel-like material is freeze-dried at-40℃ for 20h, and then vacuum sublimation is carried out at 40℃ to obtain graphene oxide aerogel;

[0062] 2) 10mL 25wt% ammonia water is added to 70g 30wt% dopamine hydrochloride aqueous solution, stirred uniformly, then 6g graphene oxide aerogel is added, reacted at 100℃ for 4h, cooled and filtered, and the solid material is dried to obtain polydopamine coated graphene oxide aerogel;

[0063] 3) 6g polydopamine coated graphene oxide aerogel is dispersed in 200mL 10wt% sodium dodecyl sulfonate aqueous solution, 1mol / L NaOH aqueous solution is added to adjust the pH value to 8, 3g carboxymethyl chitosan is added, and the reaction is carried out at 60℃ for 4h, after the reaction is completed, it is cooled, filtered, and the solid material is collected, then the solid material is washed until the pH value of the filtrate is neutral, and then dried to obtain modified graphene oxide.

[0064] Comparative example 1

[0065] A preparation method of a light warm and comfortable clothing fabric, similar to example 1, the difference is that the modified graphene oxide used is polydopamine coated graphene oxide aerogel, which specifically comprises the following steps:

[0066] S1 80g cotton fiber, 50g hemp fiber, 20g bamboo fiber are mixed uniformly to obtain a premix;

[0067] S2 weave the premix under the condition of 70Nm / 2 strands to obtain fabric gray cloth;

[0068] S3 uniformly stir 80g KH550 silane coupling agent and 2000mL 50wt% ethanol aqueous solution to obtain a pre-impregnation solution; then the fabric gray cloth is immersed in the pre-impregnation solution for 2h, and the pretreated fabric gray cloth is obtained after drying;

[0069] S4 uniformly coat the finishing agent on the surface of the pretreated fabric gray cloth, and the coating amount of the finishing agent is 50g / m 2 After 2h of hot curing at 50℃, the light warm and comfortable clothing fabric is obtained; the preparation method of the finishing agent is as follows: 50g waterborne polyurethane and 26.3g polyvinylpyrrolidone are added into 80g portions of water, stirred uniformly, then 8g modified graphene oxide is added and dispersed uniformly, and finally 7.5g glycerol is added and stirred uniformly, to obtain the finishing agent.

[0070] The preparation method of the modified graphene oxide is as follows:

[0071] 1) 20g aluminum hydroxide and 80g graphene oxide are ultrasonically dispersed in 500mL water to obtain a dispersion liquid; the dispersion liquid is transferred to a polytetrafluoroethylene-lined high-pressure reaction kettle for hydrothermal reaction, the hydrothermal temperature is 180℃, the hydrothermal reaction time is 12h, after the reaction is completed, it is cooled to room temperature, and a gel-like substance is obtained by filtration, which is freeze-dried at-40℃ for 24h, and then vacuum sublimation is carried out at 30℃ to obtain graphene oxide aerogel;

[0072] 2) 8mL 28wt% ammonia water is added to 80mL 25wt% dopamine hydrochloride aqueous solution, stirred uniformly, then 8g graphene oxide aerogel is added, and reacted at 90℃ for 4h, cooled and filtered, and the solid is dried to obtain polydopamine-coated graphene aerogel, which is the modified graphene oxide.

[0073] Comparative Example 2

[0074] A preparation method of a light warm and comfortable clothing fabric, similar to Example 1, the difference is that the modified graphene oxide used is graphene oxide aerogel, which specifically comprises the following steps:

[0075] S1 uniformly mix 80g cotton fiber, 50g hemp fiber and 20g bamboo fiber to obtain a premix;

[0076] S2 weave the premix under the condition of 70Nm / 2 strands to obtain fabric gray cloth;

[0077] S3: 80 g of KH550 silane coupling agent, 2000 mL of 50wt% ethanol aqueous solution are stirred and mixed uniformly to obtain a pre-impregnation solution; then the fabric gray cloth is placed in the pre-impregnation solution for impregnation, the impregnation time is 2 h, and the pretreated fabric gray cloth is obtained after taking out and drying;

[0078] S4: the finishing agent is uniformly coated on the surface of the pretreated fabric gray cloth, and the coating amount of the finishing agent is 50 g / m 2 , and the light warm and comfortable clothing fabric is obtained after heat curing at 50℃ for 2 h; the preparation method of the finishing agent is as follows: 50 g of water-based polyurethane and 26.3 g of polypyrrolidone are added into 80 g of water, stirred uniformly, then 8 g of modified graphene oxide is added and dispersed uniformly, and finally 7.5 g of glycerol is added and stirred uniformly, thereby obtaining the finishing agent.

[0079] The preparation method of the modified graphene oxide is as follows:

[0080] 20 g of aluminum hydroxide and 80 g of graphene oxide are ultrasonically dispersed in 500 mL of water to obtain a dispersion liquid; the dispersion liquid is transferred to a polytetrafluoroethylene-lined high-pressure reaction kettle for hydrothermal treatment, the hydrothermal temperature is 180℃, the hydrothermal reaction time is 12 h, after the reaction is completed, the temperature is cooled to room temperature, and a gel-like substance is obtained by filtration, the gel-like substance is freeze-dried at-40℃ for 24 h, and then vacuum sublimation is carried out at 30℃, thereby obtaining graphene oxide aerogel; which is the modified graphene oxide.

[0081] Comparative Example 3

[0082] A preparation method of a light warm and comfortable clothing fabric, similar to Example 1, the difference is that the used graphene oxide is not modified, and the specific steps include:

[0083] S1: 80 g of cotton fiber, 50 g of hemp fiber and 20 g of bamboo fiber are mixed uniformly to obtain a premix;

[0084] S2: the premix is woven under the condition of 70 Nm / 2 strands to obtain fabric gray cloth;

[0085] S3: 80 g of KH550 silane coupling agent, 2000 mL of 50wt% ethanol aqueous solution are stirred and mixed uniformly to obtain a pre-impregnation solution; then the fabric gray cloth is placed in the pre-impregnation solution for impregnation, the impregnation time is 2 h, and the pretreated fabric gray cloth is obtained after taking out and drying;

[0086] S4: the finishing agent is uniformly coated on the surface of the pretreated fabric gray cloth, and the coating amount of the finishing agent is 50 g / m 2, and after heat curing at 50° C. for 2 hours, the lightweight, warm and comfortable clothing fabric is obtained; the preparation method of the finishing agent is as follows: 50 g of water-based polyurethane and 26.3 g of polypyrrolidone are added to 80 g of water, stirred evenly, and then 8 g of graphene oxide is added and dispersed evenly, and finally 7.5 g of propylene glycol is added and stirred evenly to obtain the finishing agent.

[0087] Test Case

[0088] Antistatic performance test:

[0089] The lightweight, warm and comfortable clothing fabrics prepared in Examples 1-3 and Comparative Examples 1-3 were washed 10 times with standard water and then subjected to performance testing. The standard washing method was as follows: a standard detergent dosage of 2 g / L, washing conditions of 40°C, washing in a household washing machine, washing for 5 minutes per wash, and drying in a 60°C oven, for a total of 10 washes. The surface charge density test was conducted using the C method (surface charge density method) in the national standard GB / T12703-1991 "Test Methods for Electrostatic Testing of Textiles". The experimental results are shown in Table 1:

[0090] Table 1 Test results of antistatic properties of fabrics

[0091]

[0092] Antibacterial performance test:

[0093] With reference to the simplified washing conditions and procedures of FZ / T73023-2006 "Antibacterial Knitwear", the standard detergent concentration used was 2 g / L. The fabrics obtained in Example 1 and Comparative Examples 1-3 were washed in a constant temperature oscillating water bath at 40°C for 5 minutes and then rinsed with distilled water. This process was regarded as one wash. According to the above procedure, the lightweight, warm and comfortable clothing fabrics were washed 100 times, and the antibacterial properties of the washed fabrics were tested.

[0094] The antibacterial performance of the fabric after washing was tested according to the provisions of GB / T 20944.3-2008 "Evaluation of the antibacterial performance of textiles Part 3: oscillation method", with E. coli ATCC 8099, Candida albicans ATCC 10231 and Staphylococcus aureus ATCC 6538 as test bacteria. An appropriate amount of the above three bacteria was taken and placed in 20 mL of broth that had been sterilized by high temperature, to prepare a bacterial culture solution of 3x105 cfu / mL. 4 g of the fabric sample obtained in Example 1 and Comparative Examples 1-3 was weighed, and the sample was cut into pieces of about 5x5 mm and placed in the corresponding bacterial culture solution. In the experiment, the bacterial culture solution without the sample was used as a control group. The broth was placed in a constant temperature shaker, set to a temperature of 37°C and a rotation speed of 150 rpm, and cultured for 24 h. 100 μL was taken and spread on an agar plate. After 4 h of culture, the number of bacteria on the plate was recorded by plate counting. Three groups of each sample were tested and the average value was taken, and the test results are shown in Table 2. The antibacterial property of the fabric can be calculated using the following formula:

[0095] R=(B-A) / Bx100%

[0096] Wherein R represents the antibacterial rate, and A and B are the bacterial concentrations of the sample and the control group, respectively.

[0097] The test results are shown in Table 2.

[0098] Table 2: Antibacterial performance test results of the fabric after 100 washes

[0099]

[0100] As can be seen from the table, the fabric prepared in the application still has good antibacterial performance after 100 washes, and it can be seen that the antibacterial finishing agent has good combination with the base fabric and has the characteristics of long antibacterial period.

[0101] The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the patent protection scope of the present application.

Claims

1. A process for the preparation of a lightweight, thermal comfort garment fabric, characterized in that, It comprises the following steps: S1 uniformly mixing cotton fibers, hemp fibers, and bamboo fibers to obtain a premix; S2 weaving the premix under the condition of 60-80 Nm / 2 strands to obtain a fabric gray cloth; S3 uniformly stirring and mixing a silane coupling agent containing an amino group and an ethanol aqueous solution to obtain a pre-soaking solution; then immersing the fabric gray cloth in the pre-soaking solution, taking it out, and drying to obtain a pretreated fabric gray cloth; S4 uniformly coating a finishing agent on the surface of the pretreated fabric gray cloth, and obtaining the lightweight warm and comfortable clothing fabric after heat curing; The finishing agent in the S4 step comprises the following components by weight: 5-10 parts of modified graphene oxide, 20-30 parts of a penetrating agent, 40-60 parts of water-based polyurethane, 5-10 parts of a softening agent, and 50-100 parts of water. The preparation method of the modified graphene oxide is as follows: 1) ultrasonically dispersing aluminum hydroxide and graphene oxide in water to obtain a dispersion liquid; transferring the dispersion liquid to a high-pressure reaction kettle with a polytetrafluoroethylene liner for hydrothermal reaction; after the reaction is completed, cooling to room temperature, and filtering to obtain a gel-like substance, which is freeze-dried and then vacuum sublimated to obtain graphene oxide aerogel; 2) adding ammonia water to a dopamine hydrochloride aqueous solution, stirring uniformly, then adding graphene oxide aerogel thereto, heating and reacting, cooling and filtering, and collecting and drying the solid substance to obtain polydopamine-coated graphene oxide aerogel; 3) dispersing the polydopamine-coated graphene oxide aerogel in a sodium dodecyl sulfonate aqueous solution, adding NaOH aqueous solution to adjust the pH value, adding carboxymethyl chitosan, heating and reacting; after the reaction is completed, cooling, filtering, collecting the solid substance, washing the solid substance until the pH value of the filtrate is neutral, and then drying to obtain modified graphene oxide.

2. The method of claim 1, wherein: The mass ratio of the cotton fibers, hemp fibers, and bamboo fibers in the step S1 is 3-5:2-3:

1.

3. The method of claim 1, wherein: In the step 1), the amount ratio of aluminum hydroxide to graphene oxide is 1-3:3-5; the hydrothermal temperature is 160-200℃, and the hydrothermal reaction time is 10-12h.

4. The method of claim 1, wherein: In the step 2), the concentration of the dopamine hydrochloride aqueous solution is 20-30wt%, and the addition amount of the graphene oxide aerogel is 5-10% of the mass of the dopamine hydrochloride aqueous solution.

5. The method of claim 1, wherein: In the step 3), the mass ratio of the polydopamine-coated graphene oxide aerogel to carboxymethyl chitosan is 4-6:1-3.

6. The method of claim 1, wherein: The coating amount of the finishing agent in the step S4 is 40-60 g / m 2 .

7. The method of claim 1, wherein: In the step S4, the heat curing temperature is 50-60℃, and the heat curing time is 2-3h.

8. A lightweight, thermal comfort apparel fabric characterized by: Prepared by the preparation method in any one of claims 1-7.

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