Windproof warm-keeping polyester fabric and preparation process thereof

Abstract

The invention relates to the technical field of polyester fabric preparation, in particular to a windproof warm-keeping polyester fabric and a preparation process thereof, and the preparation process comprises the following steps: S1, raw material preparation and spinning: a, outer layer yarn preparation: adopting 55-65% of polyester, 10-20% of acrylic fiber, 3-5% of cotton, 3-7% of conductive fiber and 4-9% of bamboo fiber according to a fiber ratio, and treating the bamboo fiber through a siro spinning process; through a double-layer warp yarn binding technology, differential fiber layering and functional recombination of natural fibers, the fabric has multi-dimensional performance balance of wind resistance, warm keeping, antibiosis, anti-static and environmental protection, fills the technical blank of long-acting antibiosis and comfort of a traditional polyester fabric, and is worthy of popularization and application. The windproof warm-keeping polyester fabric has the advantages of being simple in structure and convenient to use, has the advantages of remarkable commercial potential and industrial competitiveness, and solves the problems that the warm-keeping performance of an existing windproof warm-keeping polyester fabric is usually improved by increasing the gram weight and density of the fabric, but the fabric becomes thick and stiff, and the wearing comfort is affected.

Description

Technical Field

[0001] This invention relates to the field of polyester fabric preparation technology, specifically to a windproof and warm polyester fabric and its preparation process. Background Technology

[0002] As people's living standards continue to improve, their demands for daily necessities are also increasing, with clothing being one of the most common necessities. The most basic function of clothing is to protect the body; it prevents external harm and maintains body temperature. In the cold winter, wearing thick down jackets and sweaters effectively protects the body from the cold.

[0003] Polyester fabric has many advantages, such as high production volume, low price, easy recyclability, strong breathability, and water resistance. Polyester fabric accounts for a considerable proportion of clothing in my country. However, polyester fabric has poor warmth retention, so most windproof and warm polyester fabrics on the market are mainly blended.

[0004] With the changing winter climate and the improvement of people's living standards, the demand for windproof and warm fabrics is increasing. Although traditional windproof and warm polyester fabrics can provide basic warmth, they are somewhat lacking in terms of comfort and antibacterial properties. Especially for outdoor sports and daily wear, people are increasingly pursuing fabrics that are both warm and comfortable, while also having good antibacterial properties. Existing windproof and warm polyester fabrics usually improve their warmth by increasing the fabric's weight and density, but this often results in the fabric becoming thick and stiff, affecting wearing comfort. Therefore, we propose a windproof and warm polyester fabric and its preparation process. Summary of the Invention

[0005] The purpose of this invention is to provide a windproof and warm polyester fabric and its preparation process, which has a multi-dimensional balance of windproof, warm, antibacterial, antistatic, and environmentally friendly properties. It fills the technical gap in long-lasting antibacterial and comfort properties of traditional polyester fabrics, and has significant commercial potential and industry competitiveness. It solves the problem that although traditional windproof and warm polyester fabrics can provide basic warmth, they are somewhat lacking in comfort and antibacterial properties. Especially for outdoor sports and daily wear, people are increasingly looking for fabrics that are both warm and comfortable, and have good antibacterial properties. Existing windproof and warm polyester fabrics usually improve warmth by increasing the weight and density of the fabric, but this often results in the fabric becoming thick and stiff, affecting wearing comfort.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a windproof and warm polyester fabric and its preparation process, comprising the following steps: S1: Raw material preparation and spinning: a. Outer layer yarn preparation: The fiber ratio is 55-65% polyester, 10-20% acrylic, 3-5% cotton, 3-7% conductive fiber and 4-9% bamboo fiber. The bamboo fiber is treated by Siro spinning process and the conductive fiber is evenly distributed in the yarn axis. b. Inner layer yarn preparation: The fiber ratio of 40-55% polyester, 15-25% modal, 8-13% chitosan fiber, 15-20% hemp fiber and 4-7% spandex is used to pre-treat the hemp fiber with alkalization and make spandex core-spun yarn. S2: Woven fabric: The double-layer woven fabric is connected by the warp splicing method, the splicing density is controlled at 6-10 splices / cm², and the loom parameters are optimized. S3: Fabric finishing process: The S2 woven double-layer fabric undergoes napping, antistatic treatment and antibacterial composite treatment. S4: Fabric post-treatment: Shaping, quality inspection, and packaging of the fabric after S3 treatment.

[0007] Preferably, in the preparation of the outer yarn in step a, the twist coefficient of the bamboo fiber Siro spinning process is 380-420, and the spinning channel is cleaned regularly. The conductive fiber uses conductive filaments, and when the conductive filaments are blended with polyester, acrylic and cotton, a parallel feeding method is used to ensure that the filaments are evenly distributed in the yarn axis.

[0008] Preferably, in the preparation of the inner layer yarn in step b, the alkali pretreatment of hemp fiber includes an alkali treatment concentration of 6%-8% for 40-60 minutes, followed by neutralization and washing with water to pH 6.5-7.0.

[0009] Preferably, in the preparation of the inner layer yarn in step b, the spandex core-spun yarn uses polyester as the sheath and spandex as the core, with a core yarn ratio of 4-7%, to produce 20-40S core-spun yarn.

[0010] Preferably, the total warp density of the outer layer is ≥120 warp yarns / cm, and the warp density of the inner layer is 80-100 warp yarns / cm.

[0011] Preferably, in the fabric finishing process of step S3, a carbon fiber napping roller napping machine is used to nap the inner layer on one side, and the napping depth is controlled at 0.5-1mm, wherein the roller pressure is 0.3-0.5MPa, the speed is 15-20m / min, the dust suction intensity is ≥500Pa, and the loose hair is immediately removed after napping.

[0012] Preferably, in the fabric finishing process of step S3, a two-dip and two-ply padding method is adopted, wherein the antistatic agent is a polyurethane-based antistatic agent with a concentration of 8-10%, the padding rate is 70-75%, and the pre-drying temperature is ≤80℃.

[0013] Preferably, in the fabric finishing process of step S3, a nano-silver composite is used, the impregnation solution is 5-8 g / L of nano-silver dispersion and 1-2% of silane coupling agent, and the particle size of the nano-silver dispersion is 20-50 nm. The pick-up rate after two dips and two nips is 70%, the pre-drying temperature is ≤80℃ and the time is 2 min, and the UV curing is 50-80 mW / cm² and the time is 30-60 s.

[0014] Preferably, in the fabric post-treatment of step S4, the setting temperature is 150-160℃, the time is 30-40s, and the overfeed rate is 3-5%.

[0015] A windproof and warm polyester fabric, which is prepared using the same process as antibacterial and anti-mite fabric.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention adopts double-layer warp yarn splicing technology. Through precise control of splicing point density, it ensures windproof performance while maintaining a breathability and moisture permeability of ≥4000g / m² / 24h, thus solving the problem of "stuffy" heat in traditional coated fabrics.

[0017] 2. This invention uses differentiated fiber layers, with the outer layer mainly for windproof and wear-resistant properties, and the inner layer mainly for moisture absorption and warmth retention, to achieve a functional zoning of "outer rigidity and inner softness".

[0018] 3. This invention utilizes the functional recombination of natural fibers to reduce the fuzziness of bamboo fibers through Sirospinning, enabling them to maintain both antibacterial properties and spinnability in the windproof layer. This overcomes the technical bottleneck of bamboo fibers being prone to fuzzing. Furthermore, the hemp fibers undergo bio-enzyme-assisted alkali treatment, reducing the coefficient of friction by 20% and achieving a comfortable experience that is "antibacterial and non-itchy".

[0019] 4. This invention forms a continuous conductive network by feeding conductive filaments into polyester in parallel during blending, which improves the antistatic efficiency by 40% compared to short fiber blending. In particular, the use of ultraviolet curing instead of traditional high-temperature baking results in a chitosan fiber degradation rate of <3% and an increase in antibacterial agent loading by 15%.

[0020] 5. This invention achieves a uniformity error of ≤10% and a fluffiness 20% higher than conventional brushing by combining single-sided brushing with a shearing and ironing process. It does not damage the outer windproof structure. At the same time, the nano-silver ultraviolet curing process avoids high-temperature damage, and the antibacterial performance decay rate is <5% / 50 washes. Attached Figure Description

[0021] Figure 1 This is a flowchart of the preparation process of the present invention. Detailed Implementation

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1 As shown, a windproof and warm polyester fabric and its preparation process include the following steps: S1: Raw material preparation and spinning: a. Outer layer yarn preparation: The fiber ratio is 65% polyester, 19% acrylic, 3% cotton, 6% conductive fiber and 7% bamboo fiber. The bamboo fiber is treated by Siro spinning process, and the conductive fiber is evenly distributed in the yarn axis. The twist coefficient of the bamboo fiber Siro spinning process is 420. The spinning channel is cleaned regularly. The conductive fiber is a conductive filament. When the conductive filament is blended with polyester, acrylic and cotton, a parallel feeding method is used to ensure that the filament is evenly distributed in the yarn axis. b. Inner layer yarn preparation: The fiber ratio is 55% polyester, 17% modal, 8% chitosan fiber, 15% hemp fiber and 4% spandex. The hemp fiber is pretreated with alkali. The alkali pretreatment of hemp fiber includes alkali treatment concentration of 8% for 60 minutes. After neutralization, it is washed with water to pH 7.0 and made into spandex core-spun yarn. The spandex core-spun yarn has polyester as sheath and spandex as core, with a core fiber ratio of 7%, and is made into 40S core-spun yarn. S2: Fabric weaving: The double-layer woven fabric is connected by the warp splicing method, the splicing density is controlled at 10 splices / cm², and the loom parameters are optimized. The total warp density of the outer layer is ≥120 warp threads / cm, and the warp density of the inner layer is 100 warp threads / cm. S3: Fabric finishing process: The double-layer fabric woven by S2 undergoes napping, antistatic treatment, and antibacterial composite treatment. A carbon napping roller is used to nap the inner layer on one side, with the napping depth controlled at 1mm. The roller pressure is 0.5MPa, the speed is 20m / min, and the dust absorption intensity is ≥500Pa. The loose hair is removed immediately after napping. A two-dip and two-nip padding method is used. The antistatic agent is a polyurethane-based antistatic agent with a concentration of 10% and a pick-up rate of 75%. The pre-drying temperature is ≤80℃. Nano-silver composite is used. The impregnation solution is 8g / L of nano-silver dispersion and 2% of silane coupling agent. The particle size of the nano-silver dispersion is 50nm. The pick-up rate after two dips and two nipples is 70%. The pre-drying temperature is ≤80℃ for 2min, and the UV curing is 80mW / cm² for 60s. S4: Fabric post-treatment: The fabric treated in S3 is shaped, inspected, and packaged. The shaping temperature is 160℃, the time is 40s, and the overfeed rate is 5%.

[0024] This technical solution utilizes a high-density plain / twill weave with warp yarn splicing (6-10 splices / cm²) on the outer layer, achieving an air permeability of ≤3L / m² / s (ASTM D737). This provides superior windproof performance compared to conventional windproof jacket fabrics (typically ≤5L / m² / s). The synergistic effect of conductive fibers (interwoven filaments) and antistatic agents reduces the fabric surface resistance to ≤10^8Ω, eliminating static interference. The inner layer features a brushed finish (0.5-1mm) to create a uniform nap, combined with the natural insulation properties of hemp fibers, resulting in a Clo value ≥0.85, adapting to temperature differences from -10℃ to 10℃ and achieving a dynamic balance of warmth. Furthermore, the chitosan fiber + nano-silver composite treatment achieves an antibacterial rate of ≥99% against Escherichia coli and Staphylococcus aureus (AATCC). (100) It maintains an antibacterial rate of ≥95% after 50 washes, possessing long-lasting antibacterial and bacteriostatic properties. Through an inner layer of modal (15-25%) + spandex (4-7%) core-spun yarn, its moisture absorption rate is 50% higher than pure cotton, and its elastic recovery rate is ≥85%. It conforms to the human body's curves, ensuring comfort and environmental friendliness while also maintaining skin-friendly breathability. By using bamboo fiber (Sirospun process) and hemp (alkali / enzyme pretreatment), it reduces reliance on chemical auxiliaries, lowering its carbon footprint by more than 30%, aligning with the trend of green textiles. It possesses the ability to enhance the effects of natural fibers. Through warp splicing + 75D polyester filament splicing yarn, its peel strength is ≥15N / 5cm (GB / T). (2792), far exceeding the 8-10N / 5cm of ordinary bonded fabrics, possessing process stability and durability. Furthermore, it employs double-layer warp splicing technology, with precise splice density control (6-10 splices / cm²), ensuring windproofness while maintaining breathability and moisture permeability ≥4000g / m² / 24h, solving the "stuffy" problem of traditional coated fabrics. Through differentiated fiber layering, the outer layer focuses on windproof and abrasion-resistant properties (polyester + acrylic), while the inner layer prioritizes moisture absorption and warmth (modal + hemp), achieving a functional division of "stiff on the outside and soft on the inside." Through the functional recombination of natural fibers, bamboo fiber, using Siro spinning technology (twist coefficient 380-420), reduces fuzz, allowing it to balance antibacterial properties and spinnability within the windproof layer, overcoming the tendency of bamboo fiber to pill. Overcoming technical bottlenecks, hemp fiber undergoes bio-enzyme-assisted alkali treatment, reducing the friction coefficient by 20% and achieving a comfortable "antibacterial and non-itchy" experience. Conductive fibers are directionally distributed, with conductive filaments fed parallel to polyester during blending to form a continuous conductive network, increasing antistatic efficiency by 40% compared to short-fiber blends. Ultraviolet curing (50-80mW / cm²) replaces traditional high-temperature baking, resulting in a chitosan fiber degradation rate of <3% and an antibacterial agent loading rate of 15%. Single-sided brushing combined with a shearing and ironing process ensures a nap uniformity error of ≤10% and 20% higher fluffiness than conventional brushing without damaging the outer windproof structure. Furthermore, the nano-silver ultraviolet curing process avoids high-temperature damage, resulting in an antibacterial performance decay rate of <5% / 50 washes.

[0025] Example 2, please refer to Figure 1 As shown, a windproof and warm polyester fabric and its preparation process include the following steps: S1: Raw material preparation and spinning: a. Outer layer yarn preparation: The fiber ratio is 59% polyester, 20% acrylic, 5% cotton, 7% conductive fiber and 9% bamboo fiber. The bamboo fiber is treated by Siro spinning process, and the conductive fiber is evenly distributed in the yarn axis. The twist coefficient of the bamboo fiber Siro spinning process is 380. The spinning channel is cleaned regularly. The conductive fiber is a conductive filament. When the conductive filament is blended with polyester, acrylic and cotton, a parallel feeding method is used to ensure that the filament is evenly distributed in the yarn axis. b. Inner layer yarn preparation: The fiber ratio is 40% polyester, 20% modal, 13% chitosan fiber, 20% hemp fiber and 7% spandex. The hemp fiber is pretreated with alkali. The alkali pretreatment of hemp fiber includes alkali treatment concentration of 6, time of 40 minutes, neutralization and washing with water to pH 6.5, and then made into spandex core-spun yarn. The spandex core-spun yarn has polyester as sheath and spandex as core, with a core fiber ratio of 4%, and is made into 20S core-spun yarn. S2: Fabric weaving: The double-layer woven fabric is connected by the warp splicing method, the splicing density is controlled at 6 splices / cm², and the loom parameters are optimized. The total warp density of the outer layer is ≥120 warp threads / cm, and the warp density of the inner layer is 80 warp threads / cm. S3: Fabric finishing process: The double-layer fabric woven by S2 undergoes napping, antistatic treatment, and antibacterial composite treatment. A carbon napping roller is used to nap the inner layer on one side, with the napping depth controlled at 0.5mm. The roller pressure is 0.3MPa, the speed is 15m / min, and the dust absorption intensity is ≥500Pa. The loose hair is removed immediately after napping. A two-dip and two-nip padding method is used. The antistatic agent is a polyurethane-based antistatic agent with a concentration of 8% and a pick-up rate of 70%. The pre-drying temperature is ≤80℃. Nano-silver composite is used. The impregnation solution is 5g / L of nano-silver dispersion and 1% of silane coupling agent. The particle size of the nano-silver dispersion is 20nm. The pick-up rate after two dips and two nipples is 70%. The pre-drying temperature is ≤80℃ for 2min, and the UV curing is 50mW / cm² for 30s. S4: Fabric post-treatment: The fabric treated by S3 is shaped, inspected and packaged. The shaping temperature is 150℃, the time is 30s, and the overfeed rate is 3%.

[0026] Example 3: Please refer to Figure 1 As shown, a windproof and warm polyester fabric and its preparation process include the following steps: S1: Raw material preparation and spinning: a. Outer layer yarn preparation: The fiber ratio is 60% polyester, 15% acrylic, 4% cotton, 6% conductive fiber and 6% bamboo fiber. The bamboo fiber is treated by Siro spinning process, and the conductive fiber is evenly distributed in the yarn axis. The twist coefficient of the bamboo fiber Siro spinning process is 400, and the spinning channel is cleaned regularly. The conductive fiber is a conductive filament. When the conductive filament is blended with polyester, acrylic and cotton, a parallel feeding method is used to ensure that the filament is evenly distributed in the yarn axis. b. Inner layer yarn preparation: The fiber ratio is 50% polyester, 20% modal, 10% chitosan fiber, 18% hemp fiber and 5% spandex. The hemp fiber is pretreated with alkali. The alkali pretreatment of hemp fiber includes alkali treatment concentration of 7% for 50 minutes. After neutralization, it is washed with water to pH 6.8 and made into spandex core-spun yarn. The spandex core-spun yarn has polyester as sheath and spandex as core, with a core fiber ratio of 6%, and is made into 30S core-spun yarn. S2: Woven fabric: The double-layer woven fabric is connected by the warp splicing method, the splicing density is controlled at 8 splices / cm², and the loom parameters are optimized. The total warp density of the outer layer is ≥120 warp threads / cm, and the warp density of the inner layer is 90 warp threads / cm. S3: Fabric finishing process: The double-layer fabric woven by S2 undergoes napping, antistatic treatment, and antibacterial composite treatment. A carbon napping roller is used to nap the inner layer on one side, with the napping depth controlled at 0.8mm. The roller pressure is 0.4MPa, the speed is 18m / min, and the dust absorption intensity is ≥500Pa. The loose hair is removed immediately after napping. A two-dip and two-nip padding method is used. The antistatic agent is a polyurethane-based antistatic agent with a concentration of 9% and a pick-up rate of 73%. The pre-drying temperature is ≤80℃. Nano-silver composite is used. The impregnation solution consists of 7g / L nano-silver dispersion and 1.5% silane coupling agent. The particle size of the nano-silver dispersion is 40nm. The pick-up rate after two dips and two nipples is 70%. The pre-drying temperature is ≤80℃ for 2min, and the UV curing is 6580mW / cm² for 4560s. S4: Fabric post-treatment: The fabric treated in S3 is shaped, inspected, and packaged. The shaping temperature is 155℃, the time is 35s, and the overfeed rate is 4%.

[0027] Comparative Example 1: Compared with Example 1, the difference in Comparative Example 1 is that the bamboo fiber is not treated with Sirospun technology in step S1a. Specifically, "a. Preparation of outer yarn: using a fiber ratio of 55-65% polyester, 10-20% acrylic, 3-5% cotton, 3-7% conductive fiber and 4-9% bamboo fiber to ensure that the conductive fiber is evenly distributed in the yarn axis", the other steps remain the same, and the windproof and warm polyester fabric prepared is recorded as Comparative Example 1.

[0028] Comparative Example 2: Compared with Example 1, the difference in Comparative Example 2 is that the hemp fiber is not pretreated with alkalization in step S1b. Specifically, the inner yarn is prepared by using a fiber ratio of 40-55% polyester, 15-25% modal, 8-13% chitosan fiber, 15-20% hemp fiber and 4-7% spandex to make spandex core-spun yarn. The other steps remain the same, and the windproof and warm polyester fabric prepared is referred to as Comparative Example 2.

[0029] Comparative Example 3: Compared with Example 1, the difference in Comparative Example 3 is that the napping treatment of the double-layer fabric is cancelled in the fabric finishing process of step S3. Specifically, the double-layer fabric woven in S2 is subjected to antistatic treatment and antibacterial composite treatment. The remaining steps remain unchanged. The windproof and warm polyester fabric prepared is referred to as Comparative Example 3.

[0030] Windproof effect Warmth retention Antibacterial and bacteriostatic properties Antistatic properties Comfort Traditional fabrics 100% 100% 100% 100% 100% Example 1 142% 134% 139% 150% 142% Example 2 146% 133% 133% 135% 138% Example 3 128% 142% 133% 142% 139% Comparative Example 1 132% 133% 134% 137% 102% Comparative Example 2 125% 134% 129% 130% 108% Comparative Example 3 123% 103% 130% 136% 111% As can be seen from the table, through various experiments, it can be found that the windproof and warm polyester fabrics prepared in Examples 1, 2 and 3 have better windproof, warm and comfortable effects than the windproof and warm polyester fabrics prepared in Comparative Examples 1, 2 and 3. At the same time, the antibacterial, antimicrobial and antistatic properties of the windproof and warm polyester fabrics prepared in Examples 1, 2 and 3 are greatly improved compared with traditional fabrics.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A manufacturing process for a windproof and warm polyester fabric, characterized in that, Includes the following steps: S1: Raw material preparation and spinning: a. Outer layer yarn preparation: The fiber ratio is 55-65% polyester, 10-20% acrylic, 3-5% cotton, 3-7% conductive fiber and 4-9% bamboo fiber. The bamboo fiber is treated by Siro spinning process and the conductive fiber is evenly distributed in the yarn axis. b. Inner layer yarn preparation: The fiber ratio of 40-55% polyester, 15-25% modal, 8-13% chitosan fiber, 15-20% hemp fiber and 4-7% spandex is used to pre-treat the hemp fiber with alkalization and make spandex core-spun yarn. S2: Woven fabric: The double-layer woven fabric is connected by the warp splicing method, the splicing density is controlled at 6-10 splices / cm², and the loom parameters are optimized. S3: Fabric finishing process: The S2 woven double-layer fabric undergoes napping, antistatic treatment and antibacterial composite treatment. S4: Fabric post-treatment: Shaping, quality inspection, and packaging of the fabric after S3 treatment.

2. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the preparation of the outer yarn in step a, the twist coefficient of the Siro spinning process of bamboo fiber is 380-420, and the spinning channel is cleaned regularly. The conductive fiber uses conductive filaments, and when the conductive filaments are blended with polyester, acrylic and cotton, a parallel feeding method is used to ensure that the filaments are evenly distributed in the yarn axis.

3. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the preparation of the inner layer yarn in step b, the alkali pretreatment of hemp fiber includes an alkali treatment concentration of 6%-8% for 40-60 minutes, followed by neutralization and washing with water to pH 6.5-7.

0.

4. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the preparation of the inner layer yarn in step b, the spandex core-spun yarn uses polyester as the sheath and spandex as the core, with a core yarn ratio of 4-7%, to make 20-40S core-spun yarn.

5. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: The total warp density of the outer layer is ≥120 warp yarns / cm, and the warp density of the inner layer is 80-100 warp yarns / cm.

6. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the fabric finishing process of step S3, a carbon fiber napping roller napping machine is used to nap the inner layer on one side, and the napping depth is controlled at 0.5-1mm. The roller pressure is 0.3-0.5MPa, the speed is 15-20m / min, the dust suction intensity is ≥500Pa, and the loose hair is removed immediately after napping.

7. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the fabric finishing process of step S3, a two-dip and two-puff method is adopted, wherein the antistatic agent is a polyurethane-based antistatic agent with a concentration of 8-10%, the puff residue rate is 70-75%, and the pre-drying temperature is ≤80℃.

8. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the fabric finishing process of step S3, nano-silver composite is used. The impregnation solution consists of 5-8 g / L nano-silver dispersion and 1-2% silane coupling agent. The particle size of the nano-silver dispersion is 20-50 nm. The roll residue after two dips and two nips is 70%. The pre-drying temperature is ≤80℃ for 2 min. The UV curing is 50-80 mW / cm² for 30-60 s.

9. The preparation process of a windproof and warm polyester fabric according to claim 1, characterized in that: In the fabric post-processing of step S4, the setting temperature is 150-160℃, the time is 30-40s, and the overfeed rate is 3-5%.

10. A windproof and warm polyester fabric, which is prepared by the preparation process of the antibacterial and anti-mite fabric of any one of claims 1-9.

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