Preparation method of wormwood mosquito-repellent cloth and coloring liquid used in preparation method

Abstract

The invention provides a preparation method of wormwood mosquito-repellent cloth and coloring liquid used in the preparation method, and belongs to the technical field of cloth dyeing. The preparation method of the wormwood cloth coloring liquid comprises the following steps: crushing wormwood leaves and scandent hop, adding water for soaking, carrying out ultrasonic treatment, and separating to obtain a wormwood mixed water extract and residues; respectively grinding lemon peel, mint leaves, citronella leaves and lavender petals, mixing, mixing with the residues to prepare wormwood mixed essential oil, dissolving the wormwood mixed essential oil in an organic solvent to obtain a mixed solution 1, sequentially adding water, mannosylerythritol lipid, a chitosan solution and graphene, homogenizing, and drying to obtain wormwood mixed essential oil microcapsules; and mixing the wormwood mixed water extract and the wormwood mixed essential oil microcapsules to obtain the wormwood cloth coloring liquid. The wormwood mosquito-repelling cloth prepared from the wormwood cloth coloring liquid can effectively repel mosquitoes and can still keep a high mosquito-repelling rate after being washed with water for multiple times, and soaping fastness and rubbing fastness are both obviously improved.

Description

Technical Field

[0001] This invention relates to the field of fabric dyeing technology, and in particular to a method for preparing mugwort mosquito repellent fabric and the dyeing liquid used therein. Background Technology

[0002] Mosquito bites can cause a variety of illnesses, and mosquitoes are highly sensitive to the odors emitted by human metabolism, typically using their sense of smell to locate their hosts. Plants with mosquito-repellent properties generally have a distinctive scent, primarily achieved by releasing volatile compounds. These compounds act on the olfactory receptors on the insects' antennae, affecting their perception of the host's scent and thus protecting humans from bites or attacks. However, in practical applications, the high volatility of these compounds makes them difficult to retain for extended periods, limiting their effectiveness in various products.

[0003] Most existing mosquito-repellent fabrics achieve their function by adding mosquito-repellent ingredients to the fabric, such as DEET and pyrethroids, which are chemical components that repel mosquitoes. However, these ingredients may have adverse effects on human health. While using natural plant dyes may result in safer ingredients, the mosquito-repellent effect is slightly weaker, and after multiple washes, the color may fade and the mosquito-repellent effect may significantly diminish, affecting the appearance and user experience.

[0004] Therefore, it is desirable to provide a method for coloring fabrics using natural mosquito-repellent plants, which results in colorfastness, safe ingredients, good mosquito-repellent effect, and long-lasting effect. Summary of the Invention

[0005] The purpose of this invention is to provide a method for coloring fabrics using natural mosquito-repellent plants, thereby solving the technical problems of existing natural plant-based mosquito-repellent fabrics having a slightly poor mosquito-repellent effect and being prone to fading.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0007] This invention provides a method for preparing a dyeing liquid for mugwort fabric, comprising the following steps:

[0008] (1) After crushing the leaves of Artemisia argyi and Humulus scandens, soak them in water, sonicate them, and separate the solid and liquid to obtain a mixed water extract of Artemisia argyi and residue.

[0009] (2) Grind lemon peel, peppermint leaves, lemongrass leaves and lavender petals separately and mix them to obtain a mixture. Then mix it with the residue described in step (1) and then steam distill it to obtain mugwort mixed essential oil.

[0010] (3) Dissolve the mugwort mixed essential oil in an organic solvent to obtain a mixture 1, then add water and mannoerythritol ester to the mixture 1 in sequence, stir to obtain a mixture 2, then add chitosan solution and graphene to the mixture 2, homogenize to obtain a uniform emulsion, spray dry to obtain mugwort mixed essential oil microcapsules.

[0011] (4) Mix the mugwort mixed water extract from step (1) and the mugwort mixed essential oil microcapsules from step (3) to obtain mugwort fabric coloring liquid.

[0012] Preferably, the mass ratio of Artemisia argyi leaves to Hops in step (1) is 5-8:1-3;

[0013] The amount of water added during soaking is 6 to 8 times the total mass of the crushed mugwort leaves and hops.

[0014] The soaking conditions are: 12-14 hours, 60-80℃;

[0015] The conditions for ultrasonic extraction are 28–32 min and a frequency of 40–50 kHz.

[0016] Preferably, the mass ratio of lemon peel, mint leaves, lemongrass leaves and lavender petals in step (2) is 4-6:4-6:1-3:1, and the mass ratio of the mixture to the residue in step (1) is 5-8:12-24.

[0017] Preferably, the organic solvent in step (3) is anhydrous ethanol; the volume ratio of the mugwort mixed essential oil to the organic solvent is 20-30:1000;

[0018] The molecular weight of the mannose erythritol ester is 550-650 Daltons, and the amount added is 2-3% of the volume of the mixture.

[0019] The stirring speed is 800-1200 rpm, the time is 20-25 min, and the temperature is 40-60℃;

[0020] The mass-to-volume ratio of the chitosan and Artemisia argyi essential oil mixture is 1 mg: 12-15 μL, and the molecular weight of the chitosan is 100,000-200,000 Daltons.

[0021] The graphene is graphene oxide, and the amount added is 0.8-1.2% of the volume of the mixture.

[0022] The homogenization conditions are: 10000-15000 rpm, 5-10 min.

[0023] Preferably, the mixing ratio of the mugwort mixed aqueous extract in step (4) and the mugwort mixed essential oil microcapsules in step (3) is 20-40 mL: 1 g.

[0024] This invention provides a dyeing liquid for Artemisia argyi fabric prepared using the above-described preparation method.

[0025] A method for preparing mugwort mosquito-repellent fabric using the above-mentioned mugwort fabric dyeing liquid is as follows:

[0026] (a) Place the fabric to be colored in hot water at 80-100°C, blanch it, cool it, add a plant-based color-fixing agent, wash it, and then soak it in the mugwort fabric coloring solution and wash it.

[0027] (b) Then place the colored fabric in clean water, add plant color fixative, soak, rinse, and dry to obtain mugwort mosquito repellent fabric.

[0028] Preferably, in step (a), the mass ratio of the fabric to be colored to the hot water is 1:15-25; the amount of plant-based color-fixing agent added is 0.02-0.04% of the volume of the hot water; the rinsing time is 10-15 min; and ultrasonic-assisted coloring is used during the soaking process under the following conditions: 80-100℃, 30-40 min, ultrasonic frequency 40-50 kHz, and mass ratio 1:10-15.

[0029] Preferably, the amount of plant-based color-fixing agent added in step (b) is 0.05-0.07% of the volume of water; the mass ratio of fabric to water is 1:30-40; the soaking time is 1-3 hours; and the temperature is 70-85°C.

[0030] Preferably, the preparation method of the plant fixing agent in steps (a) and (b) is as follows: cactus and aloe vera are pulped and filtered separately, and the filtered clear liquid is dried and mixed with rosin powder at a mass ratio of 3-5:3-5:1.

[0031] This invention provides a mosquito repellent fabric made using the above-mentioned method for preparing mosquito repellent fabric.

[0032] The present invention also provides the application of the mosquito-repellent mugwort fabric in the production of mosquito-repellent / mosquito-proof textile products.

[0033] The mugwort fabric coloring liquid provided by this invention is formulated using natural mosquito-repellent plants, ensuring high safety. The components work synergistically, allowing it to be used not only as a fabric coloring liquid but also as a standalone mosquito repellent product for indoor use, achieving a long-lasting mosquito-repellent effect. This invention uses plant essential oils as the core material and chitosan as the wall material to encapsulate the mosquito-repellent components. The emulsifier, mannose erythritol ester, improves the particle size distribution and core material encapsulation rate of the nanocapsules. Graphene enhances the shielding properties of the microcapsule wall, reduces the release rate of essential oils within the microcapsules, increases the mechanical strength of the microcapsules, and strengthens their adhesion to the fabric, thereby extending their lifespan on the fiber surface. In this invention's mugwort coloring liquid, both the prepared microcapsule components and water-soluble components are nanoscale, which is more conducive to the combination of coloring components, essential oil components, and fabric during subsequent coloring processes. This invention increases the adsorption effect of mosquito-repellent components on the fabric, collectively improving the release time of the mosquito-repellent components and prolonging the mosquito-repellent effect. This invention uses different plant-based color-fixing agents in a compound formulation, increasing the color fastness of the mugwort mosquito-repellent fabric.

[0034] The mugwort mosquito-repellent fabric provided by this invention can effectively repel mosquitoes and maintain a high mosquito-repellent rate even after multiple washes. Its soap washing fastness and rubbing fastness are significantly improved. Detailed Implementation

[0035] The technical solutions provided by the present invention will be described in detail below with reference to the embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0036] Example 1

[0037] A method for preparing a dyeing liquid for mugwort fabric:

[0038] (1) Fresh mugwort leaves and hops are crushed and mixed at a mass ratio of 2:1. Water is added at a mass ratio of 7 times the total mass of the crushed mugwort leaves and hops. The mixture is soaked at 80℃ for 12 hours and then sonicated at a frequency of 40kHz for 30 minutes. The mixture is filtered to obtain mugwort mixed water extract and residue.

[0039] (2) Grind lemon peel (green lemon), mint leaves, lemongrass leaves and lavender petals separately, pass them through a 20-mesh sieve, and mix them in a mass ratio of 5:5:1:1 to obtain a mixture. Then mix it with the residue from step (1) in a mass ratio of 6:15, place it in a round-bottom flask, add a 5% (w / v) sodium chloride solution in a mass-volume ratio of 1:10, soak for 1.5 h, and then heat at 100°C and reflux for 1 h to obtain mugwort mixed essential oil;

[0040] (3) Dissolve the above-mentioned Artemisia argyi mixed essential oil in anhydrous ethanol at a volume ratio of 1:50 to obtain mixture 1. Then add 10 times the volume of water and 3% of the volume of mannoerythritol ester (molecular weight of 600 Da) to mixture 1. Stir at 60°C and 1000 rpm for 20 min to obtain mixture 2. Then add chitosan (the mass-to-volume ratio of chitosan and Artemisia argyi mixed essential oil is 1 mg: 12 μL, and the molecular weight of chitosan is 100,000 Da) and 1% (w / v) of graphene (volume of mixture 2) while stirring. Homogenize at 15,000 rpm for 10 min to obtain a uniform emulsion. Spray dry at a drying air flow rate of 75 m / s. 3 / h, with an inlet temperature of 170℃ and an outlet temperature of 70℃, microcapsules of mugwort mixed essential oil were obtained;

[0041] (4) The mugwort mixed water extract described in step (1) and the mugwort mixed essential oil microcapsules described in step (3) are mixed at a ratio of 20mL:1g to obtain a mugwort fabric coloring liquid with a green color.

[0042] Example 2

[0043] A method for preparing a dyeing liquid for mugwort fabric

[0044] (1) Fresh mugwort leaves and hops are crushed at a mass ratio of 8:1, and then water is added in a ratio of 6 times the total mass of the crushed mugwort leaves and hops. The mixture is soaked at 70℃ for 10 hours, and then sonicated at 40kHz for 30 minutes. After filtration, the mixture of mugwort leaves and hops is obtained.

[0045] (2) Grind lemon peel (green lemon), mint leaves, lemongrass leaves and lavender petals separately, pass them through a 20-mesh sieve, and mix them in a mass ratio of 4:4:1:1 to obtain a mixture. Then mix it with the residue from step (1) in a mass ratio of 5:12 and perform steam distillation (same as in Example 1) to obtain mugwort mixed essential oil.

[0046] (3) Dissolve the above-mentioned Artemisia argyi mixed essential oil in anhydrous ethanol at a volume ratio of 1:50 to obtain mixture 1. Then add 10 times the volume of water and 2% of the volume of mannoerythritol ester (molecular weight of 600 Da) to mixture 1. Stir at 60°C and 1000 rpm for 20 min to obtain mixture 2. Then add chitosan (the mass-to-volume ratio of chitosan and Artemisia argyi mixed essential oil is 1 mg: 12 μL, and the molecular weight of chitosan is 100,000 Da) and 1% (w / v) of graphene (volume of mixture 2) while stirring. Homogenize at 15,000 rpm for 10 min to obtain a uniform emulsion. Spray dry at a drying air flow rate of 75 m / s. 3 / h, with an inlet temperature of 170℃ and an outlet temperature of 70℃, microcapsules of mugwort mixed essential oil were obtained;

[0047] (4) The mugwort mixed water extract described in step (1) and the mugwort mixed essential oil microcapsules described in step (3) are mixed at a ratio of 30mL:1g to obtain a mugwort fabric coloring liquid with a green color.

[0048] Example 3

[0049] A method for preparing a dyeing liquid for mugwort fabric

[0050] (1) Fresh mugwort leaves and hops are crushed in a mass ratio of 5:3, and then water is added in a mass ratio of 8 times the total mass of the crushed mugwort leaves and hops. The mixture is soaked at 80℃ for 12 hours, then sonicated at 40kHz for 30 minutes, and filtered to obtain mugwort mixed water extract and residue.

[0051] (2) Grind lemon peel (green lemon), mint leaves, lemongrass leaves and lavender petals separately, pass them through a 20-mesh sieve, and mix them in a mass ratio of 6:6:3:1 to obtain a mixture. Then mix it with the residue from step (1) in a mass ratio of 8:22 (the essential oil extraction method is the same as in Example 1) to obtain mugwort mixed essential oil.

[0052] (3) The Artemisia argyi mixed essential oil was dissolved in anhydrous ethanol at a volume ratio of 1:50 to obtain mixture 1. Then, 8 times the volume of water and 2% of the volume of mannoerythritol ester (molecular weight of 600 Da) were added to mixture 1. The mixture was stirred at 1000 rpm for 20 min at 60 °C to obtain mixture 2. Then, chitosan (the mass-to-volume ratio of chitosan to Artemisia argyi mixed essential oil was 1 mg:12 μL, and the molecular weight of chitosan was 100000 Da) and 1% (w / v) of graphene (the volume of mixture 2) were added to mixture 2 while stirring. The mixture was homogenized at 15000 rpm for 10 min to obtain a uniform emulsion. The emulsion was then spray-dried at a drying air flow rate of 75 m / s. 3 / h, with an inlet temperature of 170℃ and an outlet temperature of 70℃, microcapsules of mugwort mixed essential oil were obtained;

[0053] (4) The mugwort mixed water extract described in step (1) and the mugwort mixed essential oil microcapsules described in step (3) are mixed at a ratio of 40mL:1g to obtain a mugwort fabric coloring liquid with a green color.

[0054] Example 4

[0055] A type of mugwort mosquito repellent fabric, prepared by the following method:

[0056] (a) The fabric to be colored was placed in hot water at 100°C for 15 minutes at a mass ratio of 1:20. After cooling to 30°C, 0.03% of plant-based color-fixing agent was added (cactus and aloe vera were washed, pulped, filtered, and the filtered liquid was dried. Then, the dried cactus powder and aloe vera powder were mixed with rosin powder at a mass ratio of 3:3:1). After soaking for 2 hours, the fabric was taken out and washed with running water. Then, the fabric was placed in the mugwort fabric coloring liquid prepared in Example 1 at a mass ratio of 1:10. After soaking for 35 minutes at an ultrasonic frequency of 40kHz and a temperature of 95°C, the fabric was taken out, washed, and the colored fabric was obtained.

[0057] (b) Place the dyed fabric in clean water at a mass ratio of 1:30, add 0.06% plant color-fixing agent (same as in step (a)) to the water, soak at 80°C for 2 hours, rinse, and dry to obtain the mugwort mosquito repellent fabric.

[0058] Example 5

[0059] A type of mugwort mosquito repellent fabric, prepared by the following method:

[0060] (a) Place the fabric to be colored in hot water at 90°C for 10 minutes at a mass ratio of 1:15, cool to 30°C, add 0.02% by volume of plant-based color-fixing agent (clean cactus and aloe vera, pulp and filter separately, dry the filtered liquid, and then mix the dried cactus powder and aloe vera powder with rosin powder at a mass ratio of 5:3:1), soak for 2 hours, take out the fabric, wash with running water, and then place the fabric in the mugwort fabric coloring solution prepared in Example 2 at a mass ratio of 1:15, soak for 30 minutes at an ultrasonic frequency of 40kHz and 95°C, take out the fabric, wash, and obtain the colored fabric;

[0061] (b) Place the dyed fabric in clean water at a mass ratio of 1:30, add 0.05% plant color-fixing agent (same as in step (a)), soak at 85°C for 3 hours, rinse, and dry to obtain the mugwort mosquito repellent fabric.

[0062] Example 6

[0063] A type of mugwort mosquito repellent fabric, prepared by the following method:

[0064] (a) Place the fabric to be colored in hot water at 95°C with a mass ratio of 1:25, blanch for 15 minutes, cool to 30°C, add 0.04% of the hot water volume of plant color-fixing agent (clean the cactus and aloe vera, pulp and filter them separately, dry the filtered liquid, and then mix the dried cactus powder and aloe vera powder with rosin powder at a mass ratio of 3:5:1), soak for 2 hours, take out the fabric, wash it with running water, and then place the fabric in the mugwort fabric coloring liquid prepared in Example 3 with a mass ratio of 1:10, soak it for 35 minutes under the conditions of ultrasonic frequency 40kHz and 90°C, take out the fabric, wash it, and obtain the colored fabric;

[0065] (b) Place the dyed fabric in clean water at a mass ratio of 1:40, add 0.07% plant color-fixing agent (same as in step (a)), soak at 83°C for 3 hours, rinse, and dry to obtain the mugwort mosquito repellent fabric.

[0066] Comparative Example 1

[0067] Compared with Example 1, the difference is that in step (2), clove petals are used to replace lavender petals in equal amounts, and eucalyptus leaves are used to replace mint leaves in equal amounts. The preparation method of the mugwort mosquito repellent fabric is the same as in Example 4.

[0068] Comparative Example 2

[0069] Compared with Example 1, the difference is that after obtaining Mixture 1 in step (3), equal amounts of graphene and hydroxypropyl-β-cyclodextrin are first prepared into a mixed solution, and then mixed with Mixture 1. The preparation method of Artemisia argyi mosquito repellent fabric is the same as in Example 4.

[0070] Comparative Example 3

[0071] Compared with Example 1, the difference is that graphene and chitosan were not added in step (3). The preparation method of the mugwort mosquito repellent fabric is the same as in Example 4.

[0072] Comparative Example 4

[0073] The difference from Example 4 is that the fixing agent was purchased from Changzhou Meisheng Biomaterials Co., Ltd.

[0074] Experiment Example 1: Mosquito Repulsion Experiment

[0075] Put 100 test insects (female Culex quinquefasciatus) into the mosquito cage. Clip the hair on the abdomen of the rat with an area of 2 cm × 2 cm to expose the skin. After fixing the rat, put it into the mosquito cage for 5 minutes. If more than 20 test insects come to land, the attack ability is qualified, and the rat and the mosquitoes in the cage can be used for the experiment. Fix the SD rat with qualified attack ability test, clip the hair to expose the skin of 4 cm × 4 cm on the abdomen, cut and take 4 cm × 4 cm of the wormwood mosquito-repellent fabric prepared by using Examples 4-6 and Comparative Examples 1-4 and the uncolored fabric (the fabric is a polyester fabric), lay it flat on the exposed skin, and observe whether mosquitoes land on the fabric within 3 hours. Count the mosquito repellent rate after dyeing and after washing 3 times, 6 times and 10 times with water after dyeing (the results are shown in Table 1).

[0076] Table 1 Mosquito repellent rate (%)

[0077] Group After dyeing Water wash 3 times Water wash 6 times Water wash 10 times Example 4 100 97 93 82 Example 5 100 95 92 81 Example 6 100 95 90 80 Comparative Example 1 91 81 64 35 Comparative Example 2 96 80 63 31 Comparative Example 3 89 70 51 19 Comparative Example 4 96 83 62 30

[0078] As can be seen from Table 1, compared with Comparative Examples 1-4, the wormwood mosquito-repellent fabric provided by the present invention can effectively repel mosquitoes, and the wormwood mosquito-repellent fabric provided by the present invention can still maintain a high mosquito repellent rate after being washed with water many times.

[0079] Test Example 2 Color fastness detection

[0080] The detection method of color fastness to soaping is referred to GB / T 3921-2008, and the color fastness to rubbing is detected according to GB / T 42223-2022. The fabric to be colored is a polyester fabric (the results are shown in Table 2).

[0081] Table 2 Color fastness detection

[0082] Group Soaping fastness / grade Wet rubbing fastness / grade Example 4 4 4 Example 5 3-4 4 Example 6 3-4 3-4 Comparative Example 1 3 3 Comparative Example 2 3 3 Comparative Example 3 3 3 Comparative Example 4 2 2-3

[0083] As can be seen from Table 2, compared with Comparative Examples 1-4, the wormwood mosquito-repellent fabric provided by the present invention has obvious improvement in both color fastness to soaping and color fastness to rubbing.

[0084] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A method for preparing a dyeing liquid for mugwort fabric, characterized in that, Includes the following steps: (1) After crushing the leaves of Artemisia argyi and Humulus scandens, soak them in water, sonicate them, and separate the solid and liquid to obtain a mixed water extract of Artemisia argyi and residue. (2) Grind lemon peel, peppermint leaves, lemongrass leaves and lavender petals separately and mix them to obtain a mixture. Then mix it with the residue described in step (1) and then steam distill it to obtain mugwort mixed essential oil. (3) Dissolve the mugwort mixed essential oil in an organic solvent to obtain a mixture 1, then add water and mannoerythritol ester to the mixture 1 in sequence, stir to obtain a mixture 2, then add chitosan solution and graphene to the mixture 2, homogenize to obtain a uniform emulsion, spray dry to obtain mugwort mixed essential oil microcapsules. (4) Mix the mugwort mixed water extract from step (1) and the mugwort mixed essential oil microcapsules from step (3) to obtain mugwort fabric coloring liquid.

2. The preparation method according to claim 1, characterized in that, The mass ratio of Artemisia argyi leaves to Hops in step (1) is 5-8:1-3; The amount of water added during soaking is 6 to 8 times the total mass of the crushed mugwort leaves and hops. The soaking conditions are: 12-14 hours, 60-80℃; The conditions for ultrasonic extraction are 28–32 min and a frequency of 40–50 kHz.

3. The preparation method according to claim 1, characterized in that, The mass ratio of lemon peel, mint leaves, lemongrass leaves and lavender petals in step (2) is 4-6:4-6:1-3:1, and the mass ratio of the mixture to the residue in step (1) is 5-8:12-24.

4. The preparation method according to claim 1, characterized in that, The organic solvent in step (3) is anhydrous ethanol; the volume ratio of the mugwort mixed essential oil to the organic solvent is 20-30:1000; The amount of water added should be 8 to 12 times the volume of the mixture. The molecular weight of the mannose erythritol ester is 550-650 Daltons, and the amount added is 2-3% of the volume of the mixture. The stirring speed is 800-1200 rpm, the time is 20-25 min, and the temperature is 40-60℃; The mass-to-volume ratio of the chitosan and Artemisia argyi essential oil mixture is 1 mg: 12-15 μL, and the molecular weight of the chitosan is 100,000-200,000 Daltons. The graphene is graphene oxide, and the amount added is 0.8-1.2% of the volume of the mixture. The homogenization conditions are: 10000-15000 rpm, 5-10 min.

5. The preparation method according to claim 1, characterized in that, The mixing ratio of the mugwort mixed water extract in step (4) and the mugwort mixed essential oil microcapsules in step (3) is 20-40 mL: 1 g.

6. A dyeing liquid for Artemisia argyi fabric prepared by the preparation method according to any one of claims 1 to 5.

7. A method for preparing mugwort mosquito-repellent fabric using the mugwort fabric coloring liquid according to claim 6, characterized in that, Includes the following steps: (a) Place the fabric to be colored in hot water at 80-100°C, blanch it, cool it, add a plant-based color-fixing agent, wash it, and then soak it in the mugwort fabric coloring solution and wash it. (b) Then place the colored fabric in clean water, add plant color fixative, soak, rinse, and dry to obtain mugwort mosquito repellent fabric.

8. The preparation method according to claim 7, characterized in that, In step (a), the mass ratio of the fabric to be colored to the hot water is 1:15-25; the amount of plant-based color-fixing agent added is 0.02-0.04% of the volume of hot water; the rinsing time is 10-15 min; during the soaking process, ultrasonic-assisted coloring is used under the following conditions: 80-100℃, 30-40 min, ultrasonic frequency 40-50 kHz, and mass ratio 1:10-15. The amount of plant-based color-fixing agent added in step (b) is 0.05-0.07% of the volume of water; the mass ratio of fabric to water is 1:30-40; the soaking time is 1-3 hours; and the temperature is 70-85°C. The preparation method of the plant fixing agent described in steps (a) and (b) is as follows: cactus and aloe vera are pulped and filtered separately, and the filtered clear liquid is dried and mixed with rosin powder at a mass ratio of 3-5:3-5:

1.

9. A mosquito repellent fabric made using the method for preparing the mosquito repellent fabric according to claim 7 or 8.

10. The use of the mosquito-repellent mugwort fabric of claim 9 in the manufacture of mosquito-repellent / mosquito-proof textile products.