Antibacterial anti-mite fabric and preparation process thereof

Abstract

The invention relates to the technical field of textiles, in particular to an antibacterial and anti-mite fabric and a preparation process thereof. The finishing liquid is prepared from 28-35% of chitosan solution, 4-5% of tea tree essential oil, 1-2% of mint essential oil, 4-6% of folium artemisiae argyi extract, 0.5-1.5% of green tea polyphenol, 1-2% of lemon grass essential oil, 1-3% of azadirachtin extract, 4-8% of soybean protein, 1-2% of Arabic gum, 3-5% of citric acid, 0.3-0.8% of baking soda and 29.7-52.2% of deionized water for standby application. Through the steps of finishing liquid acquisition, antibacterial anti-mite fabric preparation, fabric pretreatment, dipping and mangling, drying and curing and post-treatment, the antibacterial anti-mite fabric has the advantages of being environmentally friendly and good in durability, and solves the problems that most of the main technologies of common antibacterial anti-mite fabrics in the market adopt chemical synthetic materials, and the antibacterial anti-mite fabric is not environmentally friendly. Therefore, the existing antibacterial and anti-mite fabric has the problems of environmental protection and durability.

Description

Technical Field

[0001] The present invention relates to the technical field of textiles, and specifically to an antibacterial and mite-proof fabric and a preparation process thereof. Background Art

[0002] With the improvement of people's living standards, people's requirements for clothing are not only limited to basic requirements such as beauty, comfort, and warmth, but especially pursue antibacterial properties of clothing. Therefore, in the textile industry, antibacterial textile fabrics are increasingly widely used in the manufacture of clothing. Since clothing is in frequent contact with the human body and is prone to breeding bacteria and mites, becoming an important carrier for the spread of microorganisms, antibacterial and mite-proof has become one of the characteristics of household textile fabrics on the market.

[0003] Currently, the technologies commonly used in antibacterial and mite-proof fabrics on the market mainly include nanotechnology, biotechnology, and weaving technology. Nanotechnology uses materials such as nano silver ions to endow fabrics with antibacterial properties through solution mixing or coating, and has a strong bactericidal effect; Biotechnology is to use biological enzymes or natural antibacterial agents for fabric finishing, which has the characteristics of environmental protection and high efficiency; Weaving technology reduces the porosity through ultra-dense weaving and other weaving technologies, thereby reducing the penetration rate of bacteria. Its bactericidal effect on bacteria is poor and it needs to be used in combination with other technologies. Most of the above-mentioned technologies use chemical synthetic materials, which makes the existing antibacterial and mite-proof fabrics have problems of environmental protection and durability. For this reason, we propose an antibacterial and mite-proof fabric and a preparation process thereof. Summary of the Invention

[0004] The purpose of the present invention is to provide an antibacterial and mite-proof fabric and a preparation process thereof, which have the advantages of environmental protection and good durability, and solve the problems that most of the main technologies of common antibacterial and mite-proof fabrics on the market use chemical synthetic materials, which makes the existing antibacterial and mite-proof fabrics have problems of environmental protection and durability.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An antibacterial and mite-proof fabric and a preparation process thereof, including the following steps: S1: Obtaining a finishing solution, preparing a finishing solution for standby with 28-35% of chitosan solution, 4-5% of tea tree essential oil, 1-2% of peppermint essential oil, 4-6% of artemisia argyi extract, 0.5-1.5% of green tea polyphenols, 1-2% of lemongrass essential oil, 1-3% of azadirachtin extract, 4-8% of soy protein, 1-2% of arabic gum, 3-5% of citric acid, 0.3-0.8% of baking soda, and 29.7-52.2% of deionized water; S2: Preparation of the antibacterial and mite-proof fabric, with a blending ratio of 40-55% of chitin fiber, 20-35% of bamboo fiber, and 10-40% of flax, and using the blending method of siro spinning and the weaving method of plain weave plus jacquard compound organization to obtain a ribbed antibacterial and mite-proof fabric; S3: Pretreatment of the fabric. The fabric prepared in S2 is pretreated by desizing, scouring, and plasma treatment. S4: Impregnation and padding. The fabric pretreated in S3 is fed into the finishing liquid obtained in S1 for two-bath two-padding, and the liquor ratio is controlled at 70 - 80%. S5: Drying and curing. The fabric finished in S4 is cured after pre-drying, baking, and cooling. S6: Post-treatment. A formula of 1.5 - 2.5% neem seed extract, 0.8 - 1.5% peppermint essential oil, and 5 - 10% waterborne polyurethane is used, and a mite-proof coating is formed on the fabric surface by a treatment process of knife coating, pre-drying, and curing.

[0006] Preferably, the obtaining of the finishing liquid in step S1 includes the following steps: A1: Dissolving chitosan. Chitosan powder is added to 1% acetic acid solution and stirred until completely dissolved for standby. A2: Emulsifying essential oils. Tea tree essential oil, peppermint essential oil, and lemongrass essential oil are mixed, arabic gum and a small amount of water accounting for 10% of the total liquid are added, and ultrasonic emulsification is carried out for 10 minutes to form a stable emulsion. A3: Mixing the aqueous phase. Artemisia argyi extract, green tea polyphenols, neem seed extract, and soy protein are successively added to deionized water and stirred until homogeneous. A4: Integrating all components. The chitosan solution, emulsified essential oil, and aqueous phase mixture are combined, citric acid is added, and stirring is continued for 20 minutes. A5: Adjusting the pH. A baking soda solution is added dropwise to adjust the pH from acidic to 5 - 6, avoiding precipitation of chitosan caused by excessive neutralization. A6: Filtration and standing. Impurities are filtered with a 200-mesh filter cloth, and the finishing liquid is obtained after standing and defoaming for standby.

[0007] Preferably, the preparation of the antibacterial and mite-proof fabric in step S2 includes the following steps: B1: Raw material preparation and blending. Chitin fiber, bamboo fiber, and linen fiber are prepared and mixed according to a blending ratio of 40 - 55% chitin fiber, 20 - 35% bamboo fiber, and 10 - 40% linen, and the above fibers are blended by siro spinning. The fiber mixing time of siro spinning is 30 minutes, the mixing temperature is 25°C, and the draw ratio is 1:1.2. B2: Winding and doubling. The blended yarn is wound, and then doubling treatment is carried out to prepare yarn suitable for weaving. The doubling tension is medium, and the doubling speed is 400 m / min. B3. Weaving: Adopt the weaving method of plain weave plus jacquard compound organization to weave the antibacterial and mite-proof fabric with ribbed organization. Among them, the surface plain weave uses high-density weaving, with the warp density ≥ 120 threads per inch and the weft density ≥ 80 threads per inch. The inner-layer jacquard is a honeycomb structure, and the loom speed is 60 rpm; B4. Ribbed organization formation: During the weaving process, adjust the needle grooves and needle plates of the loom to form a ribbed organization, where the rib density is 8 - 10 ribs per inch and the rib height is 0.5 - 1.0 mm.

[0008] Preferably, in step S3, the desizing uses hydrogen peroxide at 3 - 5 g / L, processes at 60 - 80 °C for 20 - 30 minutes, and is washed to neutral.

[0009] Preferably, in step S3, the scouring uses an alkaline solution prepared with 2 - 3 g / L of NaOH and 1 g / L of surfactant, processes at 80 °C for 30 minutes to remove wax and grease, and is washed to pH 7 - 8.

[0010] Preferably, in step S3, the plasma treatment is to etch the fiber surface with low-temperature plasma at a power of 50 - 100 W for 1 - 2 minutes to increase the activity of functional groups.

[0011] Preferably, in step S4, the impregnation time is 5 minutes per time and the padding pressure is 0.3 MPa.

[0012] Preferably, in step S5, the pre-drying temperature is 80 - 100 °C, the time is 3 - 5 minutes, the curing temperature is 130 - 150 °C, the time is 2 - 3 minutes, and the cooling is by air cooling at room temperature to below 30 °C.

[0013] Preferably, in step S6, the blade coating thickness of the treatment process is 0.1 mm, the pre-drying temperature is 90 °C, the time is 5 minutes, the curing temperature is 120 °C, and the time is 2 minutes.

[0014] An antibacterial and mite-proof fabric is prepared by the preparation process of the antibacterial and mite-proof fabric.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The chitin fiber, bamboo fiber, and flax fiber used in the present invention are all natural fibers. Compared with traditional chemical synthetic materials, they have better environmental protection performance and reduce environmental pollution.

[0016] 2. The antibacterial and mite-proof fabric of the present invention is made of natural fiber blends, has good air permeability and moisture absorption, and can provide a more comfortable wearing experience for users.

[0017] 3. The antibacterial and mite-proof fabric of the present invention is woven by sirospun blending and rib stitch, having good strength and wear resistance, and can extend the service life.

[0018] 4. The antibacterial and mite-proof fabric of the present invention, through the treatment of finishing liquid and mite-proof coating, has good antibacterial and mite-proof performance, can effectively inhibit the growth of bacteria and mites, and provides a healthier living environment.

[0019] 5. In the preparation process of the present invention, both the finishing liquid and the mite-proof coating formula use natural plant extracts, avoiding allergic reactions or other adverse effects on the human body, and having higher safety.

[0020] 6. The antibacterial and mite-proof fabric of the present invention can be widely applied in the fields of home, medical treatment, clothing, etc., and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the process flow chart of the preparation process of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Example 1, please refer to Figure 1 as shown, an antibacterial and mite-proof fabric and its preparation process include the following steps: S1: Obtaining the finishing liquid. Add chitosan powder into 1% acetic acid solution, stir until completely dissolved, and reserve 28% of the chitosan solution. Mix 4% tea tree essential oil, 1% peppermint essential oil, and 1% lemongrass essential oil, add 1% arabic gum and a small amount of water accounting for 10% of the total liquid, and perform ultrasonic emulsification for 10 minutes to form a stable emulsion. Add 4% artemisia argyi extract, 0.5% green tea polyphenol, 1% azadirachtin extract, and 4% soy protein into 52.2% deionized water in sequence, and stir until uniform. Combine the chitosan solution, emulsified essential oil, and aqueous phase mixture, add 3% citric acid, continuously stir for 20 minutes, dropwise add 0.3% baking soda solution, adjust the pH from acidic to 5 - 6, avoid excessive neutralization leading to chitosan precipitation, filter impurities with a 200-mesh filter cloth, and stand for defoaming to obtain the finishing liquid for standby; S2: Preparation of antibacterial and mite-proof fabric. Prepare chitin fiber, bamboo fiber and linen fiber, and mix them according to the blending ratio of 40% chitin fiber, 20% bamboo fiber and 40% linen. Use the siro spinning method for blending. The fiber mixing time of siro spinning is 30 minutes, the mixing temperature is 25°C, and the draw ratio is 1:1.2. Wind the blended yarn onto a bobbin, and then carry out doubling treatment to prepare yarn suitable for weaving. The doubling tension is medium, and the doubling speed is 400 m / min. Use the weaving method of plain weave plus jacquard composite weave to weave the antibacterial and mite-proof fabric with ribbed texture. The surface plain weave uses high-density weaving, with the warp density ≥ 120 threads per inch and the weft density ≥ 80 threads per inch. The inner-layer jacquard is a honeycomb structure, and the loom speed is 60 rpm. During the weaving process, adjust the needle slots and needle plates of the loom to form a ribbed texture. The rib density is 8 - 10 ribs per inch, and the rib height is 0.5 - 1.0 mm to obtain the antibacterial and mite-proof fabric with ribbed texture; S3: Fabric pretreatment. Pretreat the fabric prepared in S2 by desizing, scouring and plasma treatment. For desizing, use 3 - 5 g / L hydrogen peroxide and treat at 60 - 80°C for 20 - 30 minutes, then wash to neutral. For scouring, use an alkaline solution prepared with 2 - 3 g / L NaOH and 1 g / L surfactant, treat at 80°C for 30 minutes to remove wax and grease, and wash to pH 7 - 8. Plasma treatment is to etch the fiber surface with low-temperature plasma at a power of 50 - 100 W for 1 - 2 minutes to increase the activity of functional groups; S4: Impregnation and padding. Feed the fabric pretreated in S3 into the finishing liquid obtained in S1 for two-bath two-padding, and control the liquor pickup rate at 70 - 80%. The impregnation time is 5 minutes per time, and the padding pressure is 0.3 MPa; S5: Drying and curing. Cure the fabric finished in S4 after pre-drying, baking and cooling. The pre-drying temperature is 80 - 100°C and the time is 3 - 5 minutes. The baking temperature is 130 - 150°C and the time is 2 - 3 minutes. Cooling is carried out by air cooling at room temperature to below 30°C; S6: Post-treatment. Use a formulation of 1.5% neem extract, 0.8% peppermint essential oil and 5% waterborne polyurethane, and cooperate with the treatment process of knife coating, pre-drying and curing to form a mite-proof coating on the fabric surface. The thickness of the knife coating in the treatment process is 0.1 mm, the pre-drying temperature is 90°C and the time is 5 minutes, and the curing temperature is 120°C and the time is 2 minutes.

[0024] Example 2. Please refer to Figure 1 as shown, an antibacterial and mite-proof fabric and its preparation process, including the following steps: S1: Preparation of the finishing solution. Chitosan powder is added to 1% acetic acid solution and stirred until completely dissolved to obtain 32% chitosan solution for standby. 4.5% tea tree essential oil, 1.5% peppermint essential oil, and 1.5% lemongrass essential oil are mixed, then 1.5% gum arabic and a small amount of water accounting for 10% of the total liquid are added, and ultrasonic emulsification is carried out for 10 minutes to form a stable emulsion. 5% Artemisia argyi extract, 1% green tea polyphenol, 2% azadirachtin extract, and 6% soy protein are successively added to 40.5% deionized water and stirred until homogeneous. The chitosan solution, emulsified essential oil, and aqueous mixture are combined, 4% citric acid is added, and continuous stirring is carried out for 20 minutes. A 0.5% baking soda solution is added dropwise to adjust the pH from acidic to 5 - 6, avoiding chitosan precipitation caused by excessive neutralization. The impurities are filtered with a 200 - mesh filter cloth, and after standing and defoaming, the finishing solution is prepared for standby; S2: Preparation of the antibacterial and mite - proof fabric. Chitin fiber, bamboo fiber, and linen fiber are prepared and mixed according to the blending ratio of 50% chitin fiber, 28% bamboo fiber, and 22% linen, and the blending method of siro spinning is adopted to blend the above - mentioned fibers. The fiber mixing time of siro spinning is 30 minutes, the mixing temperature is 25°C, and the draw ratio is 1:1.2. The blended yarn is wound on a bobbin and then subjected to doubling treatment to prepare a yarn suitable for weaving. The doubling tension is medium, and the doubling speed is 400 m / min. The weaving method of plain weave plus jacquard composite tissue is adopted to weave the antibacterial and mite - proof fabric with ribbed texture. The surface plain weave uses high - density weaving, with the warp density ≥ 120 picks per inch and the weft density ≥ 80 picks per inch. The inner - layer jacquard is a honeycomb structure, and the loom speed is 60 rpm. During the weaving process, by adjusting the needle grooves and needle plates of the loom, a ribbed texture is formed, where the rib density is 8 - 10 ribs per inch and the rib height is 0.5 - 1.0 mm, to obtain the antibacterial and mite - proof fabric with ribbed texture; S3: Pretreatment of the fabric. The fabric prepared in S2 is pretreated by desizing, scouring, and plasma treatment. For desizing, 3 - 5 g / L hydrogen peroxide is used and treated at 60 - 80°C for 20 - 30 minutes, then washed with water until neutral. For scouring, an alkaline solution prepared with 2 - 3 g / L NaOH and 1 g / L surfactant is used and treated at 80°C for 30 minutes to remove wax and grease, and then washed with water until the pH is 7 - 8. Plasma treatment is carried out by low - temperature plasma etching of the fiber surface with a power of 50 - 100 W and a treatment time of 1 - 2 minutes to increase the activity of functional groups; S4: Impregnation and padding. The fabric pretreated in S3 is fed into the finishing solution obtained in S1 for two - dip and two - pad, and the liquor - pickup rate is controlled at 70 - 80%. The impregnation time is 5 minutes per time, and the padding pressure is 0.3 MPa; S5: Drying and curing. The fabric after finishing in S4 is cured after pre-drying, baking and cooling. The temperature for pre-drying is 80 - 100°C and the time is 3 - 5 minutes. The temperature for baking is 130 - 150°C and the time is 2 - 3 minutes. Cooling is carried out by air cooling at room temperature until the temperature is below 30°C. S6: Post-treatment. A formula of 1.5% neem extract, 0.8% peppermint essential oil, and 5% waterborne polyurethane is used. A mite-proof coating is formed on the fabric surface by cooperating with the treatment process of knife coating, pre-drying, and curing. The thickness of the knife coating in the treatment process is 0.1 mm, the pre-drying temperature is 90°C, the time is 5 minutes, the curing temperature is 120°C, and the time is 2 minutes.

[0025] Example 3. Please refer to Figure 1 as shown, an antibacterial and mite-proof fabric and its preparation process, including the following steps: S1: Obtaining the finishing solution. Chitosan powder is added to 1% acetic acid solution and stirred until completely dissolved to obtain 35% chitosan solution for standby. 5% tea tree essential oil, 2% peppermint essential oil, and 2% lemongrass essential oil are mixed, 2% arabic gum and a small amount of water accounting for 10% of the total liquid are added, and ultrasonic emulsification is carried out for 10 minutes to form a stable emulsion. 6% artemisia argyi extract, 1.5% green tea polyphenols, 3% neem extract, and 8% soy protein are successively added to 29.7% deionized water and stirred until uniform. The chitosan solution, emulsified essential oil, and aqueous mixture are combined, 5% citric acid is added, and stirring is continued for 20 minutes. A 0.8% baking soda solution is added dropwise to adjust the pH from acidic to 5 - 6 to avoid chitosan precipitation caused by excessive neutralization. Impurities are filtered with a 200-mesh filter cloth, and the finishing solution is prepared for standby after standing and defoaming. S2: Preparation of the antibacterial and mite-proof fabric. Chitin fiber, bamboo fiber, and linen fiber are prepared and mixed according to the blending ratio of 55% chitin fiber, 35% bamboo fiber, and 10% linen, and the blending method of siro spinning is adopted to blend the above fibers. The fiber mixing time of siro spinning is 30 minutes, the mixing temperature is 25°C, and the draw ratio is 1:1.2. The blended yarn is wound onto a bobbin and then subjected to doubling treatment to prepare a yarn suitable for weaving. The doubling tension is medium, and the doubling speed is 400 m / min. The weaving method of plain weave plus jacquard composite tissue is adopted to weave the antibacterial and mite-proof fabric with ribbed texture. The surface plain weave uses high-density weaving, with the warp density ≥ 120 ends per inch and the weft density ≥ 80 picks per inch. The inner-layer jacquard is a honeycomb structure, and the loom speed is 60 rpm. During the weaving process, by adjusting the needle grooves and needle plates of the loom, a ribbed texture is formed, with the rib density of 8 - 10 ribs per inch and the rib height of 0.5 - 1.0 mm, to obtain the antibacterial and mite-proof fabric with ribbed texture. S3: Pretreatment of the fabric. The fabric prepared in S2 is pretreated by desizing, scouring, and plasma treatment. For desizing, 3 - 5 g / L of hydrogen peroxide is used and treated at 60 - 80°C for 20 - 30 minutes, then washed with water until neutral. For scouring, an alkaline solution prepared with 2 - 3 g / L of NaOH and 1 g / L of surfactant is used, and treated at 80°C for 30 minutes to remove wax and grease, and then washed with water until the pH is 7 - 8. Plasma treatment is to etch the fiber surface with low-temperature plasma at a power of 50 - 100 W for 1 - 2 minutes to increase the activity of functional groups. S4: Impregnation and padding. The fabric pretreated in S3 is fed into the finishing liquid obtained in S1 for two-bath two-padding, and the liquor ratio is controlled at 70 - 80%, the impregnation time is 5 minutes per time, and the padding pressure is 0.3 MPa. S5: Drying and curing. The fabric finished in S4 is cured after pre-drying, baking, and cooling. The pre-drying temperature is 80 - 100°C and the time is 3 - 5 minutes, the baking temperature is 130 - 150°C and the time is 2 - 3 minutes, and cooling is carried out by air cooling at room temperature to below 30°C. S6: Post-treatment. A formula of 2.5% neem extract, 1.5% peppermint essential oil, and 10% waterborne polyurethane is used, and a mite-proof coating is formed on the fabric surface by a treatment process of doctor blade coating, pre-drying, and curing. The thickness of the doctor blade coating in the treatment process is 0.1 mm, the pre-drying temperature is 90°C and the time is 5 minutes, the curing temperature is 120°C and the time is 2 minutes.

[0026] Comparative Example 1: Compared with Example 1, the difference in Comparative Example 1 is that in step S1, 4% of tea tree essential oil and 4% of Artemisia argyi extract are not added. Specifically, "S1: Preparation of the finishing liquid. Chitosan powder is added to 1% acetic acid solution and stirred until completely dissolved to obtain 28% chitosan solution for standby. 1% of peppermint essential oil and 1% of lemongrass essential oil are mixed, 1% of arabic gum and a small amount of water accounting for 10% of the total liquid are added, and ultrasonic emulsification is carried out for 10 minutes to form a stable emulsion. 0.5% of green tea polyphenols, 1% of neem extract, and 4% of soy protein are added in sequence to 60.2% of deionized water and stirred until uniform. The chitosan solution, emulsified essential oil, and aqueous phase mixture are combined, 3% of citric acid is added, and stirring is continued for 20 minutes. A 0.3% solution of baking soda is added dropwise to adjust the pH from acidic to 5 - 6 to avoid chitosan precipitation caused by excessive neutralization. The impurities are filtered with a 200-mesh filter cloth, and the finishing liquid is prepared for standby after standing and defoaming", and the remaining steps remain unchanged. The prepared antibacterial and mite-proof fabric is denoted as Comparative Example 1.

[0027] Comparative Example 2: Compared with Example 1, the difference in Comparative Example 2 is that in step S3, pretreatment is not carried out by plasma treatment. Specifically, it is "S3: Fabric pretreatment, and the fabric prepared in S2 is pretreated by desizing and refining", and the remaining steps remain unchanged. The prepared antibacterial and acarid-proof fabric is denoted as Comparative Example 2.

[0028] Comparative Example 3: Compared with Example 1, the difference in Comparative Example 3 is that the post-treatment coating process in step S6 is cancelled, and the remaining steps remain unchanged. The prepared antibacterial and acarid-proof fabric is denoted as Comparative Example 3.

[0029] Performance test experiment: Select traditional process fabrics and the antibacterial and acarid-proof fabrics prepared in Examples 1-3 and Comparative Examples 1-3 for the following experiments. Through various experiments, it can be found that the antibacterial and acarid-proof fabrics prepared in Example 1, Example 2, and Example 3 have better antibacterial and acarid-proof effects than the antibacterial and acarid-proof fabrics prepared in Comparative Example 1, Comparative Example 2, and Comparative Example 3. At the same time, the air permeability of the antibacterial and acarid-proof fabrics prepared in Example 1, Example 2, and Example 3 is improved compared with the traditional fabrics, and the degradability and durability of the antibacterial and acarid-proof fabrics prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Comparative Example 3 are higher than those of the traditional fabrics.

[0030] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A preparation process of an antibacterial and mite-proof fabric, characterized in that, It includes the following steps: S1: Obtaining the finishing liquid. Prepare the finishing liquid with 28 - 35% chitosan solution, 4 - 5% tea tree essential oil, 1 - 2% peppermint essential oil, 4 - 6% mugwort leaf extract, 0.5 - 1.5% green tea polyphenols, 1 - 2% lemongrass essential oil, 1 - 3% azadirachtin extract, 4 - 8% soy protein, 1 - 2% arabic gum, 3 - 5% citric acid, 0.3 - 0.8% baking soda, and 29.7 - 52.2% deionized water for later use; S2: Preparing the antibacterial and anti - mite fabric. With a blending ratio of 40 - 55% chitin fiber, 20 - 35% bamboo fiber, and 10 - 40% linen, using the sirospun blending method and the weaving method of plain weave plus jacquard composite weave, obtain the ribbed antibacterial and anti - mite fabric; S3: Pretreating the fabric. Pretreat the fabric prepared in S2 by desizing, scouring, and plasma treatment; S4: Impregnation and padding. Feed the fabric pretreated in S3 into the finishing liquid obtained in S1 for two - dip and two - pad, and control the liquor pickup rate at 70 - 80%; S5: Drying and curing. Cure the fabric finished in S4 after pre - drying, baking, and cooling; S6: Post - treatment. With a formula of 1.5 - 2.5% azadirachtin extract, 0.8 - 1.5% peppermint essential oil, and 5 - 10% water - borne polyurethane, form an anti - mite coating on the fabric surface by cooperating with the treatment process of knife coating, pre - drying, and curing.

2. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: The obtaining of the finishing liquid in step S1 includes the following steps: A1. Dissolving chitosan: Add chitosan powder into 1% acetic acid solution, stir until completely dissolved, and set aside; A2. Emulsifying essential oils: Mix tea tree essential oil, peppermint essential oil, and lemongrass essential oil, add arabic gum and a small amount of water accounting for 10% of the total liquid, and emulsify with ultrasonic waves for 10 minutes to form a stable emulsion; A3. Mixing the aqueous phase: Add mugwort leaf extract, green tea polyphenols, azadirachtin extract, and soy protein into deionized water in sequence, and stir until uniform; A4. Integrating all components: Combine the chitosan solution, emulsified essential oils, and aqueous phase mixture, add citric acid, and continuously stir for 20 minutes; A5. Adjusting the pH: Dropwise add baking soda solution to adjust the pH from acidic to 5 - 6, avoiding chitosan precipitation caused by excessive neutralization; A6. Filtering and standing: Filter impurities with a 200 - mesh filter cloth, stand to defoam, and then obtain the finishing liquid for later use.

3. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: The preparation of the antibacterial and anti - mite fabric in step S2 includes the following steps: B1. Raw material preparation and blending: Prepare chitin fiber, bamboo fiber, and linen fiber, and mix them according to the blending ratio of 40 - 55% chitin fiber, 20 - 35% bamboo fiber, and 10 - 40% linen, and use the sirospun blending method to blend the above - mentioned fibers. The fiber mixing time of sirospun is 30 minutes, the mixing temperature is 25°C, and the draw ratio is 1:1.2; B2. Winding and doubling: Wind the blended yarn, and then perform doubling treatment to prepare the yarn suitable for weaving. The doubling tension is medium, and the doubling speed is 400 m / min; B3. Weaving: The weaving method of plain weave plus jacquard compound weave is adopted to weave the antibacterial and mite-proof fabric with rib weave. The surface plain weave is woven with high density, with the warp density ≥ 120 ends per inch and the weft density ≥ 80 picks per inch. The inner-layer jacquard is of honeycomb structure, and the loom speed is 60 rpm. B4. Formation of rib weave: During the weaving process, the rib weave is formed by adjusting the needle grooves and needle plates of the loom. The rib density is 8 - 10 ribs per inch, and the rib height is 0.5 - 1.0 mm.

4. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: In the desizing described in step S3, hydrogen peroxide at 3 - 5 g / L is used, treated at 60 - 80 °C for 20 - 30 minutes, and washed to neutral.

5. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: In the scouring described in step S3, an alkaline solution prepared with 2 - 3 g / L of NaOH and 1 g / L of surfactant is used, treated at 80 °C for 30 minutes to remove wax and grease, and washed to pH 7 - 8.

6. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: The plasma treatment described in step S3 is to etch the fiber surface with low-temperature plasma at a power of 50 - 100 W for 1 - 2 minutes to increase the activity of functional groups.

7. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: The impregnation time described in step S4 is 5 minutes per time, and the padding pressure is 0.3 MPa.

8. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: The temperature of pre-drying described in step S5 is 80 - 100 °C, and the time is 3 - 5 minutes. The temperature of curing is 130 - 150 °C, and the time is 2 - 3 minutes. The cooling is carried out by air cooling at room temperature to below 30 °C.

9. The preparation process of an antibacterial and mite-proof fabric according to claim 1, characterized in that: The thickness of the doctor blade coating of the treatment process described in step S6 is 0.1 mm, the pre-drying temperature is 90 °C, and the time is 5 minutes. The curing temperature is 120 °C, and the time is 2 minutes.

10. An antibacterial and mite-proof fabric, which is prepared by the preparation process of the antibacterial and mite-proof fabric according to any one of the above claims 1 - 9.

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