Antibacterial and deodorizing fleece thermal fabric and its preparation method

Abstract

This invention relates to the field of textile materials technology, and discloses an antibacterial and deodorizing fleece-lined fabric with heating properties and its preparation method. The fabric comprises the following components: 5-15 parts of far-infrared heating fiber with heating function, 20-40 parts of modified polyester fiber, 5-15 parts of antibacterial fiber, 5-15 parts of deodorizing fiber, 1-5 parts of far-infrared heating microparticles, 0.1-1 part of nano-silver particles, and 1-5 parts of a natural plant extract coating. Specifically, the far-infrared heating fiber comprises polyester and far-infrared ceramic powder in a 9:1 ratio; the modified polyester fiber also comprises polyester and far-infrared ceramic powder in a 9:1 ratio. By using far-infrared heating fiber and far-infrared heating microparticles with heating function, these materials can effectively absorb and emit far-infrared rays emitted by the human body and convert them into heat energy, thereby improving the fabric's warmth retention performance.

Description

Technical Field

[0001] This invention relates to the field of textile materials technology, specifically to antibacterial and deodorizing fleece thermal fabric and its preparation method. Background Technology

[0002] As people's living standards continue to improve, consumers are demanding higher and higher functionality from clothing. Especially in winter, warmth and comfort have become the main considerations when purchasing clothing. Traditional polyester fleece fabric provides excellent warmth through its fiber structure and high-density fleece layer. The fluffy structure of fleece can form an air barrier, effectively insulating cold air from the outside and maintaining body temperature. In addition, polyester fleece fabric is soft to the touch and comfortable to wear. Its dense fleece layer provides a soft touch and is skin-friendly, making it suitable for making close-fitting clothing such as thermal underwear, pajamas, and outerwear.

[0003] However, while traditional polyester fleece fabric has a certain warmth retention effect, it is prone to developing odors after prolonged use and does not have antibacterial properties, thus failing to meet the diverse needs of modern consumers.

[0004] Firstly, traditional polyester fleece fabrics mainly rely on the structure and density of fibers to provide warmth, but in extremely cold environments, their warmth performance is insufficient. Although there are existing technologies that add far-infrared ceramic powder to improve warmth performance, the effect is limited and it is difficult to maintain the warmth effect for a long time in actual use.

[0005] Secondly, some existing technologies achieve antibacterial effects by adding antibacterial agents to polyester fibers or using antibacterial fibers, but these antibacterial agents are prone to failure after repeated washing, and the antibacterial effect is difficult to last; especially in the medical and hygiene fields, traditional antibacterial fabrics are difficult to provide long-term effective antibacterial protection and cannot fully protect the health of users.

[0006] Furthermore, traditional deodorizing technologies mainly rely on chemical agents or simple physical adsorption methods. While these methods can reduce odors to some extent, they still struggle to maintain freshness after prolonged wear or strenuous exercise. Existing technologies lack solutions that can continuously provide deodorizing effects during long-term use.

[0007] Finally, in existing technologies, the functions of fabric such as warmth retention, antibacterial properties, and odor prevention often exist independently, and few fabrics can possess these superior properties simultaneously. Even if some fabrics achieve multifunctionality by combining multiple functional materials, they are often difficult to promote and use in practical applications due to problems such as complex processes and high costs. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides an antibacterial and deodorizing fleece heating fabric and its preparation method, thus solving the problem of insufficient warmth retention.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solution: antibacterial and deodorizing fleece heating fabric and its preparation method, comprising the following component materials: 5 to 15 parts of far-infrared heating fiber with heating function, 20 to 40 parts of modified polyester fiber, 5 to 15 parts of antibacterial fiber, 5 to 15 parts of deodorizing fiber, 1 to 5 parts of far-infrared heating microparticles, 0.1 to 1 part of nano-silver particles, and 1 to 5 parts of natural plant extract coating.

[0010] Preferably, the far-infrared heating fiber specifically comprises polyester and far-infrared ceramic powder, wherein the ratio of polyester to far-infrared ceramic powder is 9:1; the modified polyester fiber specifically comprises polyester and far-infrared ceramic powder, wherein the ratio of polyester to far-infrared ceramic powder is 9:1.

[0011] Preferably, the antibacterial fiber specifically comprises polyester and silver ions, wherein the ratio of polyester to silver ions is 97:3; the deodorizing fiber specifically comprises polyester and bamboo charcoal powder, wherein the ratio of polyester to bamboo charcoal powder is 92:8.

[0012] Preferably, the far-infrared heating microparticles are composed of far-infrared ceramic powder, and the particle size of the nano-silver particles is 1nm to 100nm.

[0013] Preferably, the natural plant extract coating specifically includes tea tree oil extract and eucalyptus oil extract, wherein the addition ratio of tea tree oil extract to eucalyptus oil extract is 1:1.

[0014] The preparation method of antibacterial and deodorizing fleece thermal fabric includes the following steps:

[0015] S1. Materials preparation: Prepare far-infrared heating fibers, modified polyester fibers, antibacterial fibers, deodorizing fibers, far-infrared heating microparticles, nano silver particles, and natural plant extract coatings with heating function.

[0016] S2. Yarn preparation: Using blending spinning equipment, far-infrared heating fibers, modified polyester fibers, antibacterial fibers, and deodorizing fibers with heating function are blended and spun into yarn.

[0017] S3. Weaving and Pre-setting: The yarn is woven into fleece greige fabric using double-sided knitting or double-layer weft knitting processes, then knitted using a knitting machine, and finally pre-set using a setting machine.

[0018] S4. Pelting and Dyeing: The pre-shaped greige fabric is pelted using a pelting machine, and then the pelted fabric is dyed using a dyeing machine.

[0019] S5. Heating Finishing and Coating Treatment: The dyed fabric is treated with a padding machine to perform heating finishing treatment, which evenly disperses far-infrared heating particles into the fabric. Then, a coating machine is used to attach nano-silver particles and natural plant extracts to the fabric surface through coating treatment.

[0020] Preferably, in step S2, the blending temperature of the blending spinning equipment is 60℃~80℃, and the blending time is 30min~60min.

[0021] Preferably, in step S3, the knitting density of the knitting machine is 10N / cm to 20N / cm, the temperature of the setting machine is 180℃ to 200℃, and the running time is 30S to 60S.

[0022] Preferably, in step S4, the shaking height of the shaking granulator is 3mm to 10mm, and the processing time is 5min to 10min; the dyeing temperature of the dyeing machine is 90℃ to 100℃, and the running time is 30min to 60min.

[0023] Preferably, in step S4, the temperature of the immersion liquid in the immersion mill is 30℃~50℃, the immersion time is 10S~30S, the immersion rate is 70%~90%, the coating temperature of the coating machine is 50℃~70℃, and the running time is 5min~15min.

[0024] This invention provides an antibacterial and deodorizing fleece thermal fabric and its preparation method. It has the following beneficial effects:

[0025] 1. This invention uses far-infrared heating fibers and far-infrared heating particles with heating function. These materials can effectively absorb and emit far-infrared rays emitted by the human body and convert them into heat energy, thereby improving the warmth retention performance of the fabric.

[0026] 2. This invention utilizes antibacterial fibers containing silver ions and nano-silver particles. Both silver ions and nano-silver have strong antibacterial properties, thus maintaining long-term antibacterial performance, effectively reducing bacterial growth, and is suitable for medical, hygiene, and daily wear, providing higher hygiene and health protection.

[0027] 3. This invention uses deodorizing fibers and a coating of natural plant extracts. These materials can effectively absorb and decompose odor molecules on the fabric, so that it can remain fresh and odor-free even after long-term wear or strenuous exercise, significantly improving the comfort of wearing and the user experience.

[0028] 4. This invention combines multiple functional materials such as far-infrared heating fibers, antibacterial fibers, deodorizing fibers, nano-silver particles, and natural plant extract coatings, giving the fabric a variety of superior properties such as antibacterial, deodorizing, warming, and durability. Attached Figure Description

[0029] Figure 1 This is a flowchart of the preparation steps of the present invention. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Preparation of High-Efficiency Antibacterial and Odor-Resistant Fleece Heating Fabric

[0032] Materials preparation:

[0033] Far-infrared heating fiber: 10 parts, modified polyester fiber: 30 parts, antibacterial fiber: 10 parts, deodorizing fiber: 10 parts, far-infrared heating microparticles: 3 parts, nano silver particles: 0.5 parts, natural plant extract coating: 3 parts;

[0034] Preparation steps:

[0035] S1. Prepare materials: Prepare the above-mentioned materials;

[0036] S2. Yarn preparation: Blending temperature 70℃, blending time 45 minutes;

[0037] S3. Weaving and pre-setting: Knitting density 15N / cm, after knitting, pre-setting treatment is performed at 190℃ for 45 seconds.

[0038] S4. Shaking and dyeing: Shaking height 6mm, processing time 7 minutes, dyeing temperature 95℃, dyeing time 45 minutes;

[0039] S5. Heat treatment and coating: immersion liquid temperature 40℃, immersion time 20 seconds, immersion liquid ratio 80%, coating temperature 60℃, coating time 10 minutes.

[0040] In summary, this embodiment achieves highly efficient antibacterial, deodorizing, and heat-insulating effects through standardized process conditions, making it suitable for large-scale industrial production.

[0041] Example 2: Preparation of Environmentally Friendly Antibacterial and Odor-Resistant Fleece Heating Fabric

[0042] Prepare materials:

[0043] Far-infrared heating fiber: 8 parts, modified polyester fiber: 25 parts, antibacterial fiber: 8 parts, deodorizing fiber: 8 parts, far-infrared heating microparticles: 2 parts, nano silver particles: 0.2 parts, natural plant extract coating: 2 parts;

[0044] Preparation steps:

[0045] S1. Prepare materials: Prepare the above-mentioned materials;

[0046] S2. Yarn preparation: Blending temperature 65℃, blending time 35 minutes;

[0047] S3. Weaving and pre-setting: Knitting density 12N / cm, after knitting, pre-setting treatment is performed at 185℃ for 40 seconds.

[0048] S4. Shaking and dyeing: Shaking height 5mm, processing time 6 minutes, dyeing temperature 92℃, dyeing time 40 minutes;

[0049] S5. Heat treatment and coating: immersion liquid temperature 35℃, immersion time 15 seconds, immersion liquid ratio 75%, coating temperature 55℃, coating time 8 minutes.

[0050] In summary, this embodiment emphasizes the use of environmentally friendly materials, and the optimized process parameters achieve good antibacterial and deodorizing effects while reducing energy consumption.

[0051] Example 3: Preparation of enhanced warmth-insulating, antibacterial, and deodorizing fleece thermal fabric

[0052] Prepare materials:

[0053] Far-infrared heating fiber: 12 parts, modified polyester fiber: 35 parts, antibacterial fiber: 12 parts, deodorizing fiber: 12 parts, far-infrared heating microparticles: 4 parts, nano silver particles: 0.8 parts, natural plant extract coating: 4 parts;

[0054] Preparation steps:

[0055] S1. Prepare materials: Prepare the above-mentioned materials;

[0056] S2. Yarn preparation: Blending temperature 75℃, blending time 50 minutes;

[0057] S3, Weaving and Pre-ordering:

[0058] Knitting density 18N / cm, followed by setting treatment at 195℃ for 50 seconds;

[0059] S4. Shaking and dyeing:

[0060] Shaking height 8mm, processing time 8 minutes, dyeing temperature 98℃, dyeing time 50 minutes;

[0061] S5. Heat treatment and coating:

[0062] The immersion liquid temperature was 45℃, the immersion time was 25 seconds, the immersion liquid ratio was 85%, the coating temperature was 65℃, and the coating time was 12 minutes.

[0063] In summary, this embodiment significantly enhances the warmth and antibacterial properties of the fabric by increasing the proportion of far-infrared ceramic powder and silver ions, making it suitable for applications in extremely cold environments.

[0064] Example 4: Preparation of Rapidly Dyed Antibacterial and Odor-Resistant Fleece Heating Fabric

[0065] Prepare materials

[0066] Far-infrared heating fiber: 10 parts, modified polyester fiber: 30 parts, antibacterial fiber: 10 parts, deodorizing fiber: 10 parts, far-infrared heating microparticles: 3 parts, nano silver particles: 0.5 parts, natural plant extract coating: 3 parts;

[0067] Preparation steps:

[0068] S1. Prepare materials: Prepare the above-mentioned materials;

[0069] S2. Yarn preparation: Blending temperature 70℃, blending time 40 minutes;

[0070] S3. Weaving and pre-setting: Knitting density 15N / cm, after knitting, pre-setting treatment is performed at 190℃ for 45 seconds.

[0071] S4. Shaking and dyeing: Shaking height 6mm, processing time 7 minutes, rapid dyeing temperature 100℃, dyeing time 25 minutes;

[0072] S5. Heat treatment and coating: immersion liquid temperature 40℃, immersion time 20 seconds, immersion liquid ratio 80%, coating temperature 60℃, coating time 10 minutes.

[0073] Summarize:

[0074] This embodiment optimizes the dyeing process, shortens the dyeing time, improves production efficiency, and at the same time ensures antibacterial and deodorizing properties.

[0075] Example 5: Preparation of Multifunctional Antibacterial and Odor-Resistant Fleece Heating Fabric

[0076] Prepare materials:

[0077] Far-infrared heating fiber: 12 parts, modified polyester fiber: 35 parts, antibacterial fiber: 12 parts, deodorizing fiber: 12 parts, far-infrared heating microparticles: 4 parts, nano silver particles: 0.7 parts, natural plant extract coating: 4 parts.

[0078] Preparation steps:

[0079] S1. Prepare materials: Prepare the above-mentioned materials;

[0080] S2. Yarn preparation: Blending temperature 75℃, blending time 50 minutes;

[0081] S3. Weaving and pre-setting: Knitting density 18N / cm, after knitting, pre-setting treatment is performed at 195℃ for 50 seconds.

[0082] S4. Shaking and dyeing: Shaking height 8mm, processing time 8 minutes, dyeing temperature 98℃, dyeing time 50 minutes;

[0083] S5. Heat treatment and coating: immersion liquid temperature 45℃, immersion time 25 seconds, immersion liquid ratio 85%, coating temperature 65℃, coating time 12 minutes.

[0084] In summary, this embodiment combines multiple functional materials to provide a fabric with excellent overall performance, suitable for a variety of environments and applications.

[0085] In summary, these five examples explored and optimized the preparation process of antibacterial and deodorizing fleece thermal fabric from five perspectives: efficient production, environmentally friendly materials, enhanced warmth retention, rapid dyeing, and multifunctional applications. Each example achieved optimal performance in specific application scenarios through different material ratios and process parameter adjustments. Overall, these examples demonstrate the flexibility and wide applicability of this fabric preparation technology, while providing a solid foundation for further research and application.

[0086] Test Experiment 1: Thermal Insulation Performance Test

[0087] Equipment: Heat flow meter

[0088] process:

[0089] Place the sample (10cm x 10cm) on the test stage of the heat flow meter;

[0090] Set the initial temperature to 20℃;

[0091] Start the heat flow meter and record the changes in the surface temperature of the sample at different time points.

[0092] Result data:

[0093] Time (minutes) Example 1 (°C) Example 2 (°C) Example 3 (°C) Example 4 (°C) Example 5 (°C) 0 20.0 20.0 20.0 20.0 20.0 5 23.5 22.8 24.2 23.0 24.0 10 26.7 25.5 28.0 26.0 27.8 15 29.3 28.2 30.5 28.5 30.2

[0094] In summary, this embodiment demonstrates excellent thermal insulation and antibacterial properties, making it suitable for use in extremely cold environments.

[0095] Test Experiment 2: Antibacterial Performance Test

[0096] Equipment: Antibacterial performance tester;

[0097] process:

[0098] Place the sample (10cm x 10cm) in a petri dish of the antibacterial performance tester;

[0099] Inoculate with E. coli and incubate for 24 hours;

[0100] Record the decrease in the number of bacteria.

[0101] Result data:

[0102] Time (hours) Example 1 (colony count) Example 2 (colony count) Example 3 (colony count) Example 4 (colony count) Example 5 (colony count) 0 1000 1000 1000 1000 1000 24 100 150 80 120 90

[0103] In summary, the use of environmentally friendly materials enables this embodiment to maintain functionality while also possessing good environmental performance, making it suitable for markets that prioritize environmental protection.

[0104] Test Experiment 3: Odor-proof Performance Test

[0105] Equipment: Odor analyzer;

[0106] process:

[0107] Place the sample (10cm x 10cm) inside the test chamber of the odor analyzer;

[0108] An equal amount of ammonia gas was added to the test chamber, and it was sealed for 24 hours.

[0109] Record the changes in odor intensity.

[0110] Result data:

[0111] Time (hours) Example 1 (Odor Intensity) Example 2 (Odor Intensity) Example 3 (Odor Intensity) Example 4 (Odor Intensity) Example 5 (Odor Intensity) 0 100 100 100 100 100 24 20 25 15 22 18

[0112] In summary, by adding insulating components, this embodiment has better warmth retention in extremely cold environments, while also exhibiting significant antibacterial effects.

[0113] Test Experiment 4: Colorfastness Test

[0114] Equipment: Color fastness tester;

[0115] process:

[0116] Place the sample (10cm x 10cm) in the color fastness tester;

[0117] Set the test parameters (friction, washing, etc.) and run the test;

[0118] Record the changes in staining fastness.

[0119] Result data:

[0120] project Example 1 (Level) Example 2 (Level) Example 3 (Level) Example 4 (Level) Example 5 (Level) Friction strength 4 4 4-5 4 4-5 Wash fastness 4 4 4-5 4 4-5

[0121] In summary, this embodiment significantly shortens production time after optimizing the dyeing process, making it suitable for situations requiring high-efficiency production.

[0122] Test Experiment 5: Wash Resistance Test

[0123] Equipment: Washing machine, dryer;

[0124] process:

[0125] The sample (10cm x 10cm) was placed in a washing machine to simulate household washing conditions and was washed 30 times.

[0126] Drying is done using a dryer;

[0127] Record changes in the appearance and function of the fabric.

[0128] Result data:

[0129] project Example 1 Example 2 Example 3 Example 4 Example 5 Appearance changes none none none none none Functional changes none none none none none

[0130] In summary, the comprehensive use of multifunctional materials enabled this embodiment to perform excellently in various performance tests, making it suitable for a wide range of occasions and applications.

[0131] In summary, through the testing experiments of the five embodiments, we can see that different process optimizations and material ratios have demonstrated their respective advantages in their respective test items. Overall, these embodiments demonstrate the diversity and flexibility of antibacterial and odor-resistant fleece heating fabrics in different application scenarios, providing a solid technical foundation for further market applications.

[0132] Comparative experiment:

[0133] Existing technical solutions:

[0134] Existing technology 1: Traditional polyester fleece fabric

[0135] Material composition: ordinary polyester fiber, without added heating function, antibacterial or deodorizing materials;

[0136] Preparation method: Traditional knitting, pelletizing and dyeing processes, without special finishing.

[0137] Existing technology 2: Antibacterial polyester fleece fabric

[0138] Material composition: Blend of ordinary polyester fiber and antibacterial fiber, the antibacterial fiber containing silver ions;

[0139] Preparation method: Traditional knitting process, antibacterial agent is added during dyeing, non-heat-generating functional material.

[0140] Existing technology 3: Warm polyester fleece fabric

[0141] Material composition: Blended fiber of ordinary polyester fiber and far-infrared ceramic powder;

[0142] Preparation method: Traditional knitting process, without antibacterial and deodorizing treatment during dyeing.

[0143] The technical solution of the present invention:

[0144] This invention: Antibacterial and deodorizing fleece heating fabric

[0145] Material composition: far-infrared heating fiber with heating function, modified polyester fiber, antibacterial fiber, deodorizing fiber, far-infrared heating microparticles, nano silver particles, and natural plant extract coating;

[0146] Preparation method: blended yarn, double-sided knitting or double-layer weft knitting, pre-setting, granulation treatment, dyeing treatment (adding antibacterial and deodorizing agents), heat treatment, coating treatment.

[0147] Comparative Experiment 1: Thermal Insulation Performance Test

[0148] Process Design:

[0149] Sample preparation: Fabric samples of prior art 1, prior art 2, prior art 3 and the present invention, all with a size of 10cm x 10cm.

[0150] Equipment: Heat flow meter;

[0151] step:

[0152] Place the sample on a heat flow meter and set the initial temperature to 20°C.

[0153] Start the heat flow meter and record the changes in surface temperature of each sample at different time points.

[0154] Experimental data table:

[0155] Time (minutes) Prior art 1 (°C) Prior art 2 (°C) Prior art 3 (°C) This invention (°C) 0 20.0 20.0 20.0 20.0 5 21.5 22.0 23.5 24.0 10 22.5 23.0 26.0 27.0 15 23.0 24.0 28.0 29.5

[0156] Results analysis:

[0157] The fabric of the present invention is significantly superior to the prior art 1, prior art 2 and prior art 3 in terms of warmth retention, demonstrating the effectiveness of its heat-generating functional material.

[0158] Comparative Experiment 2: Antibacterial and Odor-Deterrent Performance Test

[0159] Process Design:

[0160] Sample preparation:

[0161] The fabric samples of prior art 1, prior art 2, prior art 3, and the present invention all have a size of 10cm x 10cm;

[0162] Antibacterial testing equipment: Antibacterial performance tester;

[0163] Odor control testing equipment: Odor analyzer;

[0164] step:

[0165] Antibacterial test: Place the sample in a petri dish of the antibacterial performance tester, inoculate with Escherichia coli, incubate for 24 hours, and record the reduction in the number of bacteria;

[0166] Odor resistance test: Place the sample in the test chamber of the odor analyzer, add an equal amount of ammonia, seal for 24 hours, and record the change in odor intensity.

[0167] Experimental data table:

[0168] Antibacterial test:

[0169] Time (hours) Prior art 1 (colony count) Existing technology 2 (colony count) Existing technology 3 (colony count) This invention (colony count) 0 1000 1000 1000 1000 24 900 200 800 50

[0170] Odor resistance test:

[0171] Time (hours) Prior art 1 (odor intensity) Prior art 2 (odor intensity) Prior Art 3 (Odor Intensity) This invention (odor intensity) 0 100 100 100 100 24 80 50 70 15

[0172] Results analysis:

[0173] The fabric of the present invention is significantly superior to the prior art 1, prior art 2 and prior art 3 in terms of antibacterial and deodorizing properties, demonstrating the effectiveness of its antibacterial fibers, deodorizing fibers and coating treatment.

[0174] Comparative Experiment 3: Comprehensive Durability Test

[0175] Process Design:

[0176] Sample preparation:

[0177] The fabric samples of prior art 1, prior art 2, prior art 3, and the present invention all have a size of 10cm x 10cm;

[0178] Equipment: washing machine, dryer, color fastness tester;

[0179] step:

[0180] Wash resistance test: The sample was placed in a washing machine to simulate household washing conditions and washed for 30 cycles. It was then dried in a dryer, and the changes in the appearance and function of the fabric were recorded.

[0181] Colorfastness test: Place the sample in the colorfastness tester, set the test parameters (rubbing, washing, etc.), run the test, and record the changes in colorfastness.

[0182] Experimental data table:

[0183] Wash resistance test:

[0184] project Prior Art 1 Existing technology 2 Existing technology 3 This invention Appearance changes have have have none Functional changes have have have none

[0185] Colorfastness test:

[0186] project Prior art level 1 Prior art level 2 Existing technology level 3 This invention (level) Friction strength 3 4 3 4-5 Wash fastness 3 4 3 4-5

[0187] Results analysis:

[0188] The fabric of this invention exhibits superior performance in wash fastness and color fastness tests, indicating that its durability and stability in actual use are significantly better than those of the prior art.

[0189] In summary, the three comparative experiments demonstrate that the antibacterial and odor-resistant fleece heating fabric of this invention significantly outperforms existing technologies in terms of warmth retention, antibacterial properties, odor resistance, and durability. The experimental data fully proves the superiority of the technical solution of this invention, providing a reliable technical guarantee for the practical application of this fabric.

[0190] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for preparing an antibacterial and deodorant shake-pile fleece heating fabric, characterized in that, The component materials include the following: far-infrared heating fiber with heating function 5-15 parts, modified polyester fiber 20-40 parts, antibacterial fiber 5-15 parts, deodorant fiber 5-15 parts, far-infrared heating microparticle 1-5 parts, nano silver particle 0.1-1 part, and natural plant extract coating 1-5 parts; The far-infrared heating fiber specifically includes polyester and far-infrared ceramic powder, and the adding ratio of the polyester and the far-infrared ceramic powder is 9:1; the modified polyester fiber specifically includes polyester and far-infrared ceramic powder, and the adding ratio of the polyester and the far-infrared ceramic powder is 9:1; The antibacterial fiber specifically includes polyester and silver ions, and the adding ratio of the polyester and the silver ions is 97:3; the deodorant fiber specifically includes polyester and bamboo charcoal powder, and the adding ratio of the polyester and the bamboo charcoal powder is 92:8; The far-infrared heating microparticle is composed of far-infrared ceramic powder, and the particle size of the nano silver particle is 1-100 nm; The natural plant extract coating specifically includes tea tree oil extract and eucalyptus oil extract, and the adding ratio of the tea tree oil extract and the eucalyptus oil extract is 1:1; The preparation method includes the following steps: S1, preparing materials: preparing far-infrared heating fiber with heating function, modified polyester fiber, antibacterial fiber, deodorant fiber, far-infrared heating microparticle, nano silver particle, and natural plant extract coating; S2, yarn preparation: using a blended spinning device to blend and spin the far-infrared heating fiber with heating function, the modified polyester fiber, the antibacterial fiber, and the deodorant fiber into yarn; S3, weaving and pre-setting: using double-face knitting or double-layer weft knitting process to weave the yarn into a base cloth of shaggy, then using a knitting machine to knit, and finally using a setting machine to pre-set the base cloth; S4, shagging and dyeing: using a shagging machine to shag the pre-set base cloth, and then using a dyeing machine to dye the shagged fabric; S5, heating finishing and coating treatment: using a padding machine to finish the dyed fabric, uniformly dispersing the far-infrared heating microparticle into the fabric, and then using a coating machine to attach the nano silver particle and the natural plant extract to the surface of the fabric by coating treatment; In the S3 step, the knitting density of the knitting machine is 10-20 N / cm, the temperature of the setting machine is 180-200℃, and the running time is 30-60 s; In the S4 step, the shagging height of the shagging machine is 3-10 mm, and the processing time is 5-10 min; the dyeing temperature of the dyeing machine is 90-100℃, and the running time is 30-60 min; In the S5 step, the padding liquid temperature of the padding machine is 30-50℃, the padding time is 10-30 s, the padding rate is 70-90%, the coating temperature of the coating machine is 50-70℃, and the running time is 5-15 min.

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