A non-washing bacteriostatic cleaning solution for down fabric and a preparation method thereof

Abstract

The application discloses a field of fabric cleaning agent, and relates to a non-washing antibacterial cleaning solution for down fabric and a preparation method thereof, and the non-washing antibacterial cleaning solution is prepared from the following raw materials in parts by mass: 20-25 parts of 75% ethanol, 2-4 parts of alkyl polyglycoside, 2-4 parts of olive extract, 0.5-0.7 parts of composite essential oil, 1.2-1.8 parts of PEG-40 hydrogenated castor oil, 2-3 parts of 1,2-pentanediol, 0.3-0.5 parts of carbomer and 0.15-0.35 parts of neutralizing agent, and deionized water is added to 100 parts, wherein the composite essential oil is a mixture of juniper berry essential oil and tea tree essential oil, and the olive extract is prepared from mixed raw materials of olive fruit pulp and olive leaf powder through ultrasonic-microwave synergistic extraction, composite enzymolysis and alcohol precipitation purification. The non-washing antibacterial cleaning solution for down fabric provided by the application adopts a ternary synergistic system composed of alkyl polyglycoside, olive extract and composite essential oil, and can be used for cleaning down fabric, and can achieve the effects of efficient cleaning and short-acting antibacterial.

Description

Technical Field

[0001] This invention relates to the field of fabric cleaning agents, specifically to a waterless antibacterial cleaning liquid for down fabrics and its preparation method. Background Technology

[0002] Down fabric refers to the fabric used in down jackets. As frequently worn outerwear in winter, down jackets have their outer fabric in close contact with the external environment, making them highly susceptible to various household pollutants. However, due to the characteristics of the down filling structure, cleaning and maintenance of down jackets has always faced a dilemma: water washing is difficult to perform, as the down tends to clump and distribute unevenly after soaking, and the thick, highly absorbent fabric is difficult and time-consuming to dry; dry cleaning is costly and carries the risk of solvent residue; and neither method can meet the needs of daily spot cleaning. Therefore, consumers often adopt a "long-term tolerance" strategy for localized stains on down jackets, cleaning them very infrequently. This not only affects the appearance of the garment, but also allows stains to accumulate and potentially breed bacteria and produce odors, necessitating improvements in wearing experience and hygiene. To address this, this invention provides a waterless antibacterial cleaning solution for down fabrics and its preparation method. Summary of the Invention

[0003] The purpose of this invention is to provide a waterless antibacterial cleaning liquid for down fabrics and its preparation method in order to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions: This invention provides a waterless antibacterial cleaning solution for down fabrics. The raw materials for preparing this waterless antibacterial cleaning solution, by weight, include: 20-25 parts 75% ethanol, 2-4 parts alkyl glycosides, 2-4 parts olive extract, 0.5-0.7 parts compound essential oil, 1.2-1.8 parts PEG-40 hydrogenated castor oil, 2-3 parts 1,2-pentanediol, 0.3-0.5 parts carbomer, 0.15-0.35 parts neutralizing agent, and deionized water to bring the total to 100 parts. The compound essential oil is a blend of juniper berry essential oil and tea tree essential oil; The olive extract was prepared by ultrasonic-microwave synergistic extraction, compound enzymatic hydrolysis, and alcohol precipitation purification of a mixture of olive pulp and olive leaf powder.

[0005] As a further optimization of the present invention, the compound essential oil includes juniper berry essential oil and tea tree essential oil in a volume ratio of 1:(1.5~2).

[0006] As a further optimization of the present invention, the preparation method of olive extract is as follows: The composite raw materials of olive pulp and olive leaf powder are added to 60% ethanol at a solid-liquid ratio of 1:(15~20) (g / mL). After stirring evenly, the mixture is subjected to ultrasonic-microwave synergistic treatment, centrifuged, and the supernatant is collected to obtain the extract. The pH is adjusted to 5, and a compound enzyme powder is added for enzymatic hydrolysis. After inactivating the enzyme in the hydrolysis product, the supernatant is collected after centrifugation. After alcohol precipitation, the supernatant is collected again by centrifugation. The supernatant is then concentrated to 25~30% of the original volume by rotary evaporation under nitrogen protection. Vitamin C is then added at 0.1% of the volume of the concentrated liquid. The pH is adjusted to 4.5 and sterilized to obtain an olive extract rich in hydroxytyrosol and various organic acids.

[0007] As a further optimization of the present invention, the mass ratio of olive pulp to olive leaf powder in the composite raw materials is 1:(2~4).

[0008] As a further optimization of the present invention, the ultrasonic-microwave co-processing parameters are: ultrasonic power 350~400W; microwave power 500~550W, pulsed output, duty cycle 45~55%; temperature 60~70℃, duration 7~10min.

[0009] As a further optimization of the present invention, the compound enzyme powder includes β-glucosidase powder and hemicellulase powder in a mass ratio of (1~2):1.

[0010] As a further optimization of the present invention, the amount of compound enzyme powder added is 1~1.5% of the volume of the extract, and the enzymatic hydrolysis conditions are: enzymatic hydrolysis at 50~55℃ for 5~6 hours.

[0011] This invention also provides a method for preparing the above-mentioned waterless antibacterial cleaning solution for down fabrics, comprising the following steps: (1) Slowly add carbomer to deionized water while stirring. Let it stand at room temperature for 30-40 minutes. Then add 75% ethanol, alkyl glycoside and 1,2-pentanediol in sequence and stir until homogeneous to obtain the base solution. (2) Mix the compound essential oil with PEG-40 hydrogenated castor oil and stir in a water bath at 40~50℃ until clear and transparent to obtain a premix. Add the premix to the base liquid and continue stirring until uniform and clear. Then add olive extract and stir evenly to obtain a mixture. (3) Add neutralizing agent dropwise to the mixture while stirring, add deionized water and stir again until homogeneous. After standing to defoam, filter to obtain waterless antibacterial cleaning solution.

[0012] The beneficial effects of this invention are as follows: The waterless antibacterial cleaning solution for down fabrics provided by this invention employs a ternary synergistic system composed of alkyl glycosides, olive extract, and compound essential oils. Used for cleaning down jacket fabrics, it achieves both highly efficient cleaning and short-term antibacterial effects. In this ternary synergistic system, the olive extract is a product obtained through ultrasonic-microwave synergistic extraction, compound enzymatic hydrolysis, and alcohol precipitation purification of a composite raw material of olive pulp and olive leaf powder. Its application in this system effectively enhances the cleaning power. The compound essential oils, a combination of juniper berry essential oil and tea tree essential oil, strengthen the antibacterial effect of the cleaning solution. The short-term antibacterial effect relies on the synergistic effect of the alkyl glycosides, olive extract, and compound essential oils. The application of this waterless antibacterial cleaning solution effectively improves the convenience of cleaning and maintaining down fabrics, thereby enhancing the wearing experience of down jackets. Detailed Implementation

[0013] The present application will now be described in further detail. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0014] I. Experimental Materials (1) The pH adjuster is citric acid, the neutralizer is triethanolamine, and the carbomer type is U20.

[0015] (2) 60% ethanol and 75% ethanol are both volume fractions.

[0016] Unless otherwise specified, all methods used in this invention are conventional methods known to those skilled in the art, and all reagents and materials used are commercially available products.

[0017] II. Experimental Methods 1. Preparation of waterless antibacterial cleaning solution Example 1

[0018] A waterless antibacterial cleaning solution for down fabrics, the preparation method of which includes the following steps: (1) Mix olive pulp and olive leaf powder at a mass ratio of 1:2 to obtain a composite raw material. Add the composite raw material to 60% ethanol at a solid-liquid ratio of 1:15 (g / mL). After stirring evenly, perform ultrasonic-microwave synergistic treatment (ultrasonic power 350W; microwave power 550W, pulsed output, duty cycle 45%; temperature 60℃, duration 7min). After centrifugation, take the supernatant to obtain the extract. Adjust the pH to 5. β-glucosidase powder and hemicellulase powder were mixed at a mass ratio of 2:1 to obtain a compound enzyme powder. 1% of the compound enzyme powder by volume was added to the extract, and the mixture was enzymatically hydrolyzed at 50℃ for 6 hours. After inactivating the enzyme in the hydrolysate, the supernatant was collected by centrifugation. Two volumes of 95% ethanol were added to the supernatant, and the mixture was stirred evenly and allowed to stand at 4℃ for ethanol precipitation for 16 hours. The supernatant was collected by centrifugation of the ethanol precipitation product. Under nitrogen protection conditions of 42℃ and vacuum degree -0.08MPa, the supernatant was concentrated to 25% of its original volume by rotary evaporation. Then, 0.1% of vitamin C by volume of the concentrated liquid was added, the pH was adjusted to 4.5, and the mixture was sterilized to obtain an olive extract rich in hydroxytyrosol and various organic acids. (2) Mix juniper berry essential oil and tea tree essential oil evenly at a volume ratio of 1:1.5 to obtain a compound essential oil; take 20 parts of 75% ethanol, 2 parts of alkyl glycoside, 2 parts of olive extract, 0.7 parts of compound essential oil, 1.8 parts of PEG-40 hydrogenated castor oil, 2 parts of 1,2-pentanediol, 0.3 parts of carbomer, and 0.15 parts of neutralizing agent by weight, and then add deionized water to make up to 100 parts for later use; (3) Slowly add carbomer to deionized water (50% of the total amount of deionized water) while stirring. Let it stand at room temperature for 30 minutes, then add 75% ethanol, alkyl glycoside and 1,2-pentanediol in sequence and stir evenly to obtain the base solution. (4) Mix the compound essential oil with PEG-40 hydrogenated castor oil and stir in a 50°C water bath until clear and transparent to obtain a premixed solution. After cooling to room temperature, add it to the base solution and continue stirring until uniform and clear. Then add olive extract and stir evenly to obtain a mixed solution. (5) Add neutralizing agent dropwise to the mixture while stirring, add deionized water, stir again until uniform, let stand to defoam, filter, and obtain waterless antibacterial cleaning solution.

[0019] Example 2

[0020] A waterless antibacterial cleaning solution for down fabrics, the preparation method of which includes the following steps: (1) Mix olive pulp and olive leaf powder at a mass ratio of 1:4 to obtain a composite raw material. Add the composite raw material to 60% ethanol at a solid-liquid ratio of 1:20 (g / mL). After stirring evenly, perform ultrasonic-microwave synergistic treatment (ultrasonic power 400W; microwave power 500W, pulsed output, duty cycle 55%; temperature 70℃, duration 10min). After centrifugation, take the supernatant to obtain the extract. Adjust the pH to 5. β-glucosidase powder and hemicellulase powder were mixed at a mass ratio of 1:1 to obtain a compound enzyme powder. 1.5% of the compound enzyme powder by volume was added to the extract. The mixture was enzymatically hydrolyzed at 55℃ for 5 hours. After inactivating the enzyme in the hydrolysate, the supernatant was collected by centrifugation. Three times the volume of 95% ethanol was added to the supernatant, and the mixture was stirred evenly. The mixture was then allowed to stand at 4℃ for ethanol precipitation for 14 hours. The supernatant was collected by centrifugation of the ethanol precipitation product. The supernatant was concentrated to 30% of its original volume by rotary evaporation. Vitamin C was added at a volume of 0.1% of the concentrated liquid. The pH was adjusted to 4.5 and then sterilized to obtain an olive extract rich in hydroxytyrosol and various organic acids. (2) Mix juniper berry essential oil and tea tree essential oil evenly at a volume ratio of 1:2 to obtain a compound essential oil; take 25 parts of 75% ethanol, 4 parts of alkyl glycoside, 4 parts of olive extract, 0.5 parts of compound essential oil, 1.2 parts of PEG-40 hydrogenated castor oil, 3 parts of 1,2-pentanediol, 0.5 parts of carbomer, and 0.35 parts of neutralizing agent by weight, and then add deionized water to make up to 100 parts for later use; (3) Slowly add carbomer to deionized water while stirring. Let it stand at room temperature for 40 minutes. Then add 75% ethanol, alkyl glycoside and 1,2-pentanediol in sequence and stir until homogeneous to obtain the base solution. (4) Mix the compound essential oil with PEG-40 hydrogenated castor oil and stir in a 40°C water bath until clear and transparent to obtain a premixed solution. After cooling to room temperature, add it to the base solution and continue stirring until uniform and clear. Then add olive extract and stir evenly to obtain a mixed solution. (5) Add neutralizing agent dropwise to the mixture while stirring, add deionized water, stir again until uniform, let stand to defoam, filter, and obtain waterless antibacterial cleaning solution.

[0021] Example 3

[0022] A waterless antibacterial cleaning solution for down fabrics, the preparation method of which includes the following steps: (1) Mix olive pulp and olive leaf powder at a mass ratio of 1:3 to obtain a composite raw material. Add the composite raw material to 60% ethanol at a solid-liquid ratio of 1:17 (g / mL). After stirring evenly, perform ultrasonic-microwave synergistic treatment (ultrasonic power 380W; microwave power 520W, pulsed output, duty cycle 50%; temperature 65℃, duration 9min). After centrifugation, take the supernatant to obtain the extract. Adjust the pH to 5. β-glucosidase powder and hemicellulase powder were mixed at a mass ratio of 1.5:1 to obtain a compound enzyme powder. 1.3% of the volume of the compound enzyme powder was added to the extract, and the mixture was enzymatically hydrolyzed at 52℃ for 5.5h. After inactivating the enzyme in the hydrolysate, the supernatant was collected by centrifugation. 2.5 times the volume of 95% ethanol was added to the supernatant, and the mixture was stirred evenly and allowed to stand at 4℃ for ethanol precipitation for 15h. The ethanol precipitation product was centrifuged and the supernatant was collected. The supernatant was concentrated to 27% of its original volume by rotary evaporation. Vitamin C was added at a volume of 0.1% of the concentrated liquid, and the pH was adjusted to 4.5 before sterilization to obtain an olive extract rich in hydroxytyrosol and various organic acids. (2) Mix juniper berry essential oil and tea tree essential oil evenly at a volume ratio of 1:1.8 to obtain a compound essential oil; take 22 parts of 75% ethanol, 3 parts of alkyl glycoside, 3 parts of olive extract, 0.6 parts of compound essential oil, 1.4 parts of PEG-40 hydrogenated castor oil, 2.5 parts of 1,2-pentanediol, 0.4 parts of carbomer, and 0.25 parts of neutralizing agent by weight, and then add deionized water to make up to 100 parts for later use; (3) Slowly add carbomer to deionized water while stirring. Let it stand at room temperature for 35 minutes, then add 75% ethanol, alkyl glycoside and 1,2-pentanediol in sequence and stir until homogeneous to obtain the base solution. (4) Mix the compound essential oil with PEG-40 hydrogenated castor oil and stir in a 45°C water bath until clear and transparent to obtain a premixed solution. After cooling to room temperature, add it to the base solution and continue stirring until uniform and clear. Then add olive extract and stir evenly to obtain a mixed solution. (5) Add neutralizing agent dropwise to the mixture while stirring, add deionized water, stir again until uniform, let stand to defoam, filter, and obtain waterless antibacterial cleaning solution.

[0023] 2. Waterless washing efficacy test Pure white 320T polyester fabric was used as the experimental fabric. 5mL of the cleaning solution to be tested was evenly coated on the fabric, and after standing for 15 minutes, it was wiped. The wiped experimental fabric was placed on a precision electronic balance to dry. The weighing value was recorded every 30 seconds. When the difference between three consecutive weighings was ≤0.2mg, it was determined to be constant weight. The time of the last weighing was taken as the drying endpoint, and the drying time was recorded. Then, the experimental fabric that was not treated with the cleaning solution was used as the control fabric. The dried experimental fabric and the control fabric were observed and compared under D65 standard light source to check for water stains, ring marks, white crystals, etc.

[0024] The specific rubbing operation is as follows: a reciprocating rubbing color fastness tester is used to simulate the rubbing operation. The contact pressure is set to 25 kPa, the frequency is 60 times / min, and the reciprocating stroke is 50 mm. First, the rubbing head is wrapped with a dry rubbing cloth (to ensure that the rubbing surface is flat) and rubbed for 3 minutes. Then, a wet cotton cloth (soaked in sterile water and wrung out until it does not drip) is wrapped around the rubbing head and rubbed for 1 minute.

[0025] The results showed that the fabric treated with the waterless antibacterial cleaning solution prepared in Examples 1-3 took 10-13 minutes to dry, and the dried fabric surface had no obvious water stains, ring marks, white crystals, or obvious discoloration.

[0026] 3. Analysis of factors affecting antibacterial and cleaning efficacy (1) Influence of formulation components To investigate the effects of formulation components on the efficacy of waterless antibacterial cleaning solution, the amounts of alkyl glycosides, olive extract, and compound essential oils in the formulation were adjusted, and comparative examples 1-4 were set up, as shown in Table 1.

[0027] Table 1. Formulation Component Settings

[0028] (2) Effect of olive extract Adjust the preparation method of olive extract and set up comparative examples 5 and 6, with the specific settings as follows: Comparative Example 5 Based on Example 3, the composite raw material used in step (1) was replaced with an equal amount of olive leaf powder.

[0029] Comparative Example 6 Based on Example 3, the compound enzyme powder used in step (1) was replaced with an equal amount of β-glucosidase powder.

[0030] (3) The effect of compound essential oils To investigate the effect of compound essential oils on the efficacy of waterless antibacterial cleansing solution, comparative examples 7 and 8 were set up, with the specific settings as follows: Comparative Example 7 Based on Example 3, the compound essential oil used in step (2) was replaced with an equal amount of tea tree essential oil.

[0031] Comparative Example 8 Based on Example 3, the compound essential oil used in step (2) was replaced with an equal amount of juniper berry essential oil.

[0032] 4. Efficacy testing The efficacy of the waterless antibacterial cleaning solutions prepared in Examples 1-3 and Comparative Examples 1-8 was tested. The test items and methods are as follows: (1) Stain removal rate test: Five test points were selected on the experimental fabric. The whiteness value of each test point was measured using a WSB-2 whiteness meter to obtain the original whiteness value. 1 mL of test reagent (containing 5% carbon black, 45% liquid paraffin, 30% lanolin, and 20% whole milk) was added to each test point. After standing for 15 min, the whiteness of the fabric was measured for the second time to obtain the whiteness value after staining. 2 mL of the cleaning solution to be tested was then applied to the stain at the test point. After standing for 15 min, the stain was wiped (using the same method as in Section 2). After wiping, the stain was left to stand for 20 min. The whiteness of the fabric was measured for the third time to obtain the whiteness value after stain removal. The stain removal rate was calculated using the formula: Stain removal rate = (whiteness value after stain removal - whiteness value after staining) / (original whiteness value - whiteness value after staining) × 100%. The average of the test results of the five test points was taken as the final test result. (2) Antibacterial rate test: The concentration was prepared at 2×10 6 CFU / mL of test bacterial suspension (Staphylococcus aureus ATCC6538, Escherichia coli ATCC 25922) was used. 50 μL of the bacterial suspension was inoculated onto sterilized test fabric and allowed to stand for 30 min to obtain contaminated fabric. 2 mL of the test cleaning solution was then applied to the contaminated fabric, and after standing for 15 min, it was wiped (using the same method as above). Residual bacteria on the contaminated fabric were then eluted with PBS elution buffer using vortexing. The bacteria were counted using the pour method, with the contaminated fabric coated with sterile water serving as a positive control. The inhibition rate was calculated, and the average of three parallel experiments was used as the final result. The calculation formula is as follows: In the formula, C t T represents the average viable count of the positive control group. t This represents the average number of viable bacteria in the experimental group.

[0033] (3) Determination of antibacterial efficacy: Three groups of bacterial fabrics, A, B and C, were prepared using the test cleaning solution (preparation method as above). Each group included 3 parallel controls. 2 mL of the test cleaning solution was coated on the bacterial fabric, and after standing for 15 min, it was wiped (method as above). After wiping, the three groups of bacterial fabrics, A, B and C, were laid flat and stored in an environment of 25℃ and 60%RH. After 3 h, 12 h and 24 h, respectively, the bacterial suspension (50 μL) was inoculated again. After incubation at 37℃ for 24 h, the average number of viable bacteria was measured. The bacterial fabric coated with sterile water and stored under the same conditions and then inoculated again with the bacterial suspension was used as a positive control. The antibacterial rate was calculated (formula as above). The average of the three parallel controls was taken as the final test result.

[0034] 5. Test Results and Conclusions The test data are shown in Tables 2 and 3. From the tables, we can see that: (1) The waterless antibacterial cleaning liquid prepared in Examples 1-3 has good stain removal and antibacterial effects. After being used to wipe the fabric, it still has a certain antibacterial activity within 24 hours, indicating that the waterless antibacterial cleaning liquid has a short-term antibacterial effect after use.

[0035] (2) Comparing the test data of Example 3 and Comparative Examples 1-4, it can be seen that the ternary system composed of alkyl glycoside, olive extract and compound essential oil used in the waterless antibacterial cleaning liquid has a synergistic cleaning effect, which is better than single, high-concentration surfactants. The core components that exert the antibacterial effect in the cleaning liquid are olive extract and compound essential oil. However, the synergy of the ternary system can effectively prolong the antibacterial effect. It is inferred that the reason is that the APG micelles in the alkyl glycoside and the antibacterial components in the compound essential oil and olive extract play a solubilizing and anchoring role, which promotes the retention and slow release of antibacterial components on the fabric.

[0036] (3) Comparing the test data of Example 3 and Comparative Examples 5-8, it can be seen that the composite raw materials and composite enzymatic hydrolysis process used in preparing olive extract can enhance the enrichment of effective components, which is conducive to enhancing the cleaning effect and antibacterial persistence of the cleaning solution. The combination of juniper berry essential oil and tea tree essential oil can significantly enhance the antibacterial effect of the cleaning solution.

[0037] Table 2 Results of Decontamination Rate and Antibacterial Rate Tests

[0038] Table 3 Results of Antibacterial Efficacy Test

[0039] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A waterless antibacterial cleaning solution for down fabrics, characterized in that: The raw materials for preparing this waterless antibacterial cleaning solution, by weight, include: 20-25 parts 75% ethanol, 2-4 parts alkyl glycoside, 2-4 parts olive extract, 0.5-0.7 parts compound essential oil, 1.2-1.8 parts PEG-40 hydrogenated castor oil, 2-3 parts 1,2-pentanediol, 0.3-0.5 parts carbomer, 0.15-0.35 parts neutralizing agent, and deionized water to make up to 100 parts; The compound essential oil is a mixture of juniper berry essential oil and tea tree essential oil; The olive extract was prepared by ultrasonic-microwave synergistic extraction, compound enzymatic hydrolysis, and alcohol precipitation purification of a mixture of olive pulp and olive leaf powder.

2. The waterless antibacterial cleaning solution for down fabrics according to claim 1, characterized in that: The compound essential oil comprises juniper berry essential oil and tea tree essential oil in a volume ratio of 1:(1.5~2).

3. The waterless antibacterial cleaning solution for down fabrics according to claim 1, characterized in that: The preparation method of the olive extract is as follows: The composite raw material of olive pulp and olive leaf powder is added to 60% ethanol at a solid-liquid ratio of 1:(15~20) (g / mL). After stirring evenly, it is subjected to ultrasonic-microwave synergistic treatment, centrifuged, and the supernatant is collected to obtain the extract. The pH is adjusted to 5, and a compound enzyme powder is added for enzymatic hydrolysis. After inactivating the enzyme in the hydrolysis product, the supernatant is collected after centrifugation. After alcohol precipitation, the supernatant is collected again by centrifugation. The supernatant is concentrated to 25~30% of the original volume under nitrogen protection by rotary evaporation. Then, 0.1% of vitamin C is added to the concentrated liquid volume, the pH is adjusted to 4.5, and sterilization is performed to obtain an olive extract rich in hydroxytyrosol and various organic acids.

4. The waterless antibacterial cleaning solution for down fabrics according to claim 3, characterized in that: In the composite raw material, the mass ratio of olive pulp to olive leaf powder is 1:(2~4).

5. The waterless antibacterial cleaning solution for down fabrics according to claim 3, characterized in that: The ultrasonic-microwave co-processing parameters are: ultrasonic power 350~400W; microwave power 500~550W, pulsed output, duty cycle 45~55%; temperature 60~70℃, duration 7~10min.

6. The waterless antibacterial cleaning solution for down fabrics according to claim 3, characterized in that: The compound enzyme powder includes β-glucosidase powder and hemicellulase powder in a mass ratio of (1~2):

1.

7. The waterless antibacterial cleaning solution for down fabrics according to claim 3, characterized in that: The amount of the compound enzyme powder added is 1-1.5% of the volume of the extract, and the enzymatic hydrolysis conditions are: enzymatic hydrolysis at 50-55℃ for 5-6 hours.

8. A method for preparing a waterless antibacterial cleaning solution for down fabrics as described in any one of claims 1-7, characterized in that: Includes the following steps: (1) Slowly add carbomer to deionized water while stirring. Let it stand at room temperature for 30-40 minutes. Then add 75% ethanol, alkyl glycoside and 1,2-pentanediol in sequence and stir until homogeneous to obtain the base solution. (2) Mix the compound essential oil with PEG-40 hydrogenated castor oil and stir in a water bath at 40~50℃ until clear and transparent to obtain a premix. Add the premix to the base liquid and continue stirring until uniform and clear. Then add olive extract and stir evenly to obtain a mixture. (3) Add neutralizing agent dropwise to the mixture while stirring, add deionized water and stir again until homogeneous. After standing to defoam, filter to obtain waterless antibacterial cleaning solution.

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