Preparation process of antibacterial wormwood wet tissue

Abstract

The invention relates to the field of female health care products, in particular to a preparation process of a bacteriostatic wormwood wet tissue. The preparation method comprises the following steps: by taking wormwood fibers as a main raw material, preparing a wormwood extracting solution, preparing wet tissue base cloth, pretreating the wet tissue base cloth, performing microemulsion treatment on the wormwood extracting solution, dipping the wet tissue, and cutting and packaging. According to the antibacterial wormwood wet tissue provided by the invention, the wet tissue base cloth is also prepared by blending the wormwood fibers, and the wormwood fibers in the wet tissue and the soaked wormwood extracting solution can be used for synergistically resisting and inhibiting bacteria, so that the inhibiting effect on harmful bacteria at the private parts of women is remarkably improved, and gynecological inflammation can be effectively prevented and relieved; in addition, a countercurrent extraction device is arranged in the extraction process of the wormwood extracting solution, so that the extraction efficiency and the concentration of effective components in the extraction process are improved to the maximum extent, and the wormwood wet tissue has a better antibacterial effect.

Description

Technical Field

[0001] The invention relates to the field of female hygiene care products, and in particular to a preparation process of antibacterial wormwood wet wipes. Background Art

[0002] The special physiological environment of the female private parts makes it vulnerable to invasion by harmful bacteria, including but not limited to Escherichia coli, Staphylococcus aureus, Candida albicans, etc., which may cause a variety of gynecological inflammations and have serious impacts on women's physical and mental health; according to statistics, women with relevant gynecological inflammation incidence data will suffer from vaginitis and other related diseases at least once in their lifetime; the physiological environment of the female private parts is special and is susceptible to infection by harmful bacteria, causing vaginitis, vulvitis and other diseases. The market demand for private care wipes that can effectively inhibit harmful bacteria and are safe and comfortable is increasing.

[0003] However, although some existing female private area care wipes on the market claim to have antibacterial and antimicrobial functions, in actual use, the inhibitory effect on harmful bacteria often cannot meet the actual use needs and cannot effectively cope with the complex microbial environment of the private area; and in order to increase the antibacterial effect, some wet wipe products add a large amount of chemical antibacterial agents. These chemicals may destroy the normal balance of the private area's flora, leading to a decrease in local resistance, and ultimately leading to serious consequences such as private area skin allergies, redness and swelling, or bacterial infection; at the same time, there are some wet wipes based on natural plant extracts, which are not perfect in the extraction process, resulting in the loss of effective ingredients in the extract or reduced activity, and cannot guarantee the stability and antibacterial properties of the wet wipes. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to provide a preparation process of antibacterial wormwood wet wipes. The wormwood fiber and wormwood extract in the wet wipes provided by the present invention can synergistically resist bacteria, can significantly improve the inhibitory effect on harmful bacteria in the female private parts, and can effectively prevent and relieve female gynecological inflammation.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A preparation process of antibacterial wormwood wet wipes comprises the following steps: S1. Preparation of wormwood extract, selecting wormwood in a vigorous growth period for picking, washing it after picking, and removing impurities such as soil; placing the washed wormwood in a complex enzyme solution containing cellulase, hemicellulase and pectinase for pretreatment, placing the wormwood in an ethanol extraction solvent and extracting it using a dynamic countercurrent extraction technology to obtain a wormwood extract; S2, preparing the wet wipes base fabric, soaking the wormwood fiber in a solution containing Bacillus liquid for degumming, and blending the treated wormwood fiber and viscose fiber in a ratio of 2:8; S3, pretreatment of the base fabric, preparing a polyethylene glycol solution with a concentration of 0.5% to 2%, soaking the prepared base fabric in the solution, controlling the temperature between 30°C and 40°C, soaking time for 30 to 60 minutes, and drying it after soaking; S4, microemulsification treatment of wormwood extract, adding lecithin natural emulsifier and glycerin auxiliary emulsifier to the prepared wormwood extract, wherein the weight ratio of wormwood extract, natural emulsifier and auxiliary emulsifier added is 7:1:1; the prepared mixed solution is stirred by ultrasound at 40-60°C to achieve microemulsification of the wormwood extract, wherein the ultrasonic power is 300-500w, and the stirring time is 10-20 minutes; S5, wet wipes impregnation, the base fabric after pretreatment is placed in the micro-emulsified wormwood extract for impregnation treatment, the impregnation time is 10-30s, and after the impregnation, the wet wipes are subjected to plasma post-treatment to enhance the surface activity of the wet wipes and the adsorption capacity of the wormwood extract; S6. Cut and package. Dry the prepared wet wipes at low temperature at 30-40°C for 1-2 hours, and cut and package the dried wet wipes.

[0006] Preferably, step S1 comprises the following steps: S11. Prepare a composite enzyme containing cellulase, hemicellulase and pectinase in a ratio of 1:1:1; dissolve the prepared composite enzyme in a citric acid-sodium citrate buffer solution, wherein the concentration of the composite enzyme is 0.5%-2% and the temperature is between 40°C and 50°C; place the washed wormwood in the composite enzyme solution for pretreatment for 2-4 hours. S12, using 70% to 80% ethanol extraction solvent to perform dynamic countercurrent extraction on the pretreated wormwood, the temperature should not be too high, between 40° C. and 60° C., and the extraction time is 2-3 hours; after the extraction is completed, the solid residue is removed to obtain a wormwood extract; S13, subjecting the pretreated mugwort extract to an integrated membrane separation and concentration process to further increase the concentration of antibacterial substances such as volatile oils, flavonoids and other antibacterial substances in the extract.

[0007] The wormwood is pretreated with a composite enzyme, which can effectively decompose the cell wall of the wormwood fiber through the action of the composite enzyme, so that the antibacterial active ingredients in the wormwood can be dissolved more easily; the wormwood is extracted through dynamic countercurrent technology, and the solvent constantly contacts new physical during the flow process, so that it always maintains a high concentration difference, and the active ingredients in the wormwood will continue to transfer to the solvent, making the extraction of the active ingredients more complete; the extracted wormwood extract is subjected to integrated membrane separation and concentration treatment, which can significantly increase the concentration of the main active ingredients in the extract, such as flavonoids, volatile oils and other antibacterial substances, and also reduce the interference of irrelevant components on the active ingredients in the extract, while also avoiding the problems of active ingredient destruction and activity reduction caused by traditional heating concentration methods.

[0008] Preferably, in the degumming treatment of step S2, the volume ratio of the Bacillus liquid to the soaking liquid is 1:8~1:10, the degumming treatment temperature is between 30~35°C, the time is 3~5 days, during which it is stirred at a speed of 50~100rpm; after degumming, the wormwood fiber is taken out and rinsed with clean water, and then placed in a well-ventilated environment for air drying; biological degumming can utilize specific microorganisms to decompose the colloid components in the wormwood fiber while retaining its antibacterial substances. Compared with chemical degumming, biological degumming is relatively mild and can retain the natural antibacterial properties of the wormwood fiber to the maximum extent.

[0009] Preferably, the blended wormwood fiber in step S2 is immersed in an antibacterial solution containing chitosan, the temperature is controlled between 30 and 40°C, and after stirring and mixing evenly, the wormwood fiber is taken out and dried to obtain modified wormwood fiber, and the ratio of the modified wormwood fiber and viscose fiber blended to form a wet wipe base cloth is 2:3; the wormwood fiber is modified using an antibacterial solution containing chitosan, and when the wormwood fiber is immersed in the antibacterial solution containing chitosan, the chitosan will be adsorbed on the surface of the wormwood fiber and penetrate into the inside of the wormwood fiber, so that the wormwood fiber has both its own antibacterial and antibacterial properties and the antibacterial and antibacterial properties of chitosan, so that the wormwood wet wipes can exert better antibacterial function, and chitosan, as a natural polysaccharide substance, has good biocompatibility, and the wormwood fiber treated with chitosan will be more skin-friendly, and will not cause adverse reactions such as irritation or allergies when the wormwood fiber comes into contact with the skin, thereby improving the comfort and safety of the use process.

[0010] Preferably, step S1 is also equipped with a countercurrent extraction device for extracting mugwort extract, the countercurrent extraction device is composed of a plurality of extraction chambers interconnected with each other, an extraction cylinder for storing extract material is arranged at the bottom end of the extraction chamber, one end of the extraction cylinder is upwardly provided with a feed port, and the other end is downwardly provided with a discharge port; a liquid inlet connected to the extraction chamber is arranged at the top position of the extraction chamber farthest from the feed port, and a liquid outlet connected to the extraction chamber is arranged at the bottom position of the extraction chamber farthest from the discharge port.

[0011] Preferably, the side wall of the extraction cylinder is provided with a plurality of small holes for the extraction solvent to enter, a spiral feeder is also provided inside the extraction cylinder, and a feed motor for controlling the movement of the feeder is also provided on the outside near the feed port; an agitator is provided in each extraction chamber, and a plurality of stirring motors for controlling the movement of the agitator are also provided on the top of the outside of the extraction chamber.

[0012] The wormwood extract is extracted using a countercurrent extraction method. The wormwood material enters the extraction cylinder through the feed port at the left end of the countercurrent extraction device, and the extraction solvent enters the extraction chamber through the liquid inlet at the right end of the countercurrent extraction device. The wormwood material in the extraction cylinder is driven by a feed motor to move in the spiral feeder, while the extraction solvent flows in the extraction chamber. The movement directions of the two are opposite, so that the extraction solvent constantly contacts new materials during the flow process, and a high concentration difference is always maintained between the two, so that the active ingredients in the wormwood will continue to transfer to the extraction solvent, and each extraction chamber is provided with a stirrer, which can continuously stir the extraction solvent during the extraction process, so that the extraction of the active ingredients is more complete; the extracted wormwood material will be discharged through the discharge port at the bottom right end of the countercurrent extraction device, and the extracted extract will be discharged through the liquid outlet at the bottom left end of the countercurrent extraction device.

[0013] Preferably, the preparation of antibacterial wormwood wipes is also equipped with a wet wipes production device, which includes a device base, a web-forming table is arranged on the device base, and an air flow machine is arranged above the web-forming table; a raw material roller is rotatably connected to one end of the web-forming table, and a pressing roller that is in contact with the raw material roller is also rotatably connected to the device base, and a plurality of guide rollers for guiding are also arranged on the raw material roller.

[0014] Preferably, after the pressing roller presses the wet wipe base fabric, it will be sent to the hot rolling roller for thermal bonding reinforcement, and clamping rollers for clamping and tightening the wet wipe base fabric are also provided at both ends of the hot rolling roller; after hot pressing, the wet wipe base fabric will bypass the bottom of the pretreatment immersion roller, and the pretreatment immersion roller is rotatably connected and arranged in the pretreatment immersion box, and the height of the pretreatment immersion roller is lower than the height of the liquid level in the pretreatment immersion box; after the pretreatment immersion, the wet wipe base fabric will bypass the drying roller for drying treatment, and clamping rollers are also provided at both ends of the drying roller; the wet wipe base fabric will be pretreated after hot pressing and shaping, and the pretreatment immersion box is filled with a polyethylene glycol solution with a concentration of 0.5% to 2%. When the wormwood base fabric is immersed in the solution, the polyethylene glycol in the solution can form hydrogen bonds with water, which can make the antibacterial components in the subsequent wormwood extract better distributed on the surface of the base fabric and promote its distribution on the surface of the base fabric, further improving the durability of the antibacterial effect of the wet wipes.

[0015] Preferably, the wet wipe base cloth will bypass the bottom of the extracting liquid immersion roller after passing through the drying roller, and the extracting liquid immersion roller is rotatably connected and arranged in the extracting liquid immersion box, and the height of the extracting liquid immersion roller is lower than the height of the liquid level in the extracting liquid immersion box. After the wet wipe base cloth is immersed in the extracting liquid, it will eventually pass through the discharging roller; the extracting liquid immersion box body is also provided with a liquid receiving trough protruding obliquely upward, and the protruding length of the liquid receiving trough is longer than the position of the discharging roller; the wet wipe base cloth is impregnated, so that the antibacterial components in the wormwood extract can be immersed in the wet wipe, so that the wormwood fibers in the wet wipe base cloth and the immersed wormwood extract have synergistic antibacterial effects, and the antibacterial components such as volatile oils and flavonoids contained in the wormwood fiber itself work together with the effective components in the wormwood extract, so that the antibacterial and antibacterial effects of the wet wipe are better.

[0016] To sum up, the beneficial effects of the present invention are: the antibacterial wormwood wet wipes provided by the present invention use natural wormwood as the main raw material. Whether it is the wormwood fiber used to prepare the base cloth or the wormwood extract used for impregnation, the use of chemical synthetic antibacterial agents is avoided, and the adverse reactions such as skin redness, itching, and allergies caused by chemical stimulation can be effectively avoided. The wormwood fiber and the wormwood extract in the base cloth have synergistic antibacterial effects, which significantly improves the inhibitory effect on harmful bacteria in the female private parts, and effectively prevents and relieves gynecological inflammation; and the dynamic countercurrent extraction technology is adopted in the extraction process of the wormwood extract, which maximizes the extraction efficiency and the concentration of effective ingredients in the extraction process, so that the wormwood wet wipes have better antibacterial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the countercurrent extraction device of the present invention; Figure 2 It is a schematic structural diagram of a wet wipes production device of the present invention; Figure 3It is a schematic diagram of the wet wipes production process structure of the present invention.

[0018] Markings in the figure: 1-countercurrent extraction device, 101-extraction chamber, 102-extraction cylinder, 103-liquid inlet, 104-liquid outlet, 105-feeding port, 106-discharging port, 107-feeder, 108-feeding motor, 109-agitator, 110-stirring motor, 2-wet wipes production device, 201-device base, 202-net forming table, 203-air flow machine, 204-raw material roller, 205-pressing roller, 206-hot rolling roller, 207-drying roller, 208-clamping roller, 209-pretreatment immersion roller, 210-pretreatment immersion box, 211-extraction liquid immersion roller, 212-extraction liquid immersion box, 213-liquid receiving tank, 214-discharging roller, 215-guide roller. DETAILED DESCRIPTION

[0019] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

[0020] The present invention will be described in detail below with reference to the accompanying drawings by way of embodiments.

[0021] Example 1

[0022] A preparation process of antibacterial wormwood wet wipes comprises the following steps: Step 1: Pretreatment of wormwood: prepare a composite enzyme containing cellulase, hemicellulase and pectinase in a ratio of 1:1:1, dissolve the prepared composite enzyme in a citric acid-sodium citrate buffer solution, the concentration of the composite enzyme is 2%, and the temperature is 40°C; put the washed wormwood into the composite enzyme solution for pretreatment, and the pretreatment time is 2 hours; Preparation of extract: Use 70% ethanol extraction solvent to perform dynamic countercurrent extraction on the pretreated wormwood. The temperature should not be too high, between 40°C, and the extraction time is 2h. After the extraction, remove the solid residue to obtain the wormwood extract; Extract concentration: The pre-treated wormwood extract is subjected to integrated membrane separation and concentration treatment to further increase the concentration of antibacterial substances such as volatile oils and flavonoids in the extract.

[0023] Step 2, degumming treatment of wormwood fiber: the volume ratio of Bacillus liquid to soaking liquid is 1:10, the degumming treatment temperature is 30°C, the time is 3 days, during which it is stirred at a stirring speed of 80rpm; after degumming, the wormwood fiber is taken out and rinsed with clean water, and then placed in a well-ventilated environment for air drying; Preparation of wet wipes base fabric: The processed wormwood fiber and viscose fiber are blended in a ratio of 2:8.

[0024] Step 3: Pretreatment of the base fabric: Prepare a polyethylene glycol solution with a concentration of 0.5%, soak the prepared base fabric in the solution at a temperature of 30°C for 30 minutes, and dry it after soaking.

[0025] Step 4. Microemulsification treatment of wormwood extract: add lecithin natural emulsifier and glycerol auxiliary emulsifier to the prepared wormwood extract, wherein the mass ratio of wormwood extract, natural emulsifier and auxiliary emulsifier added is 7:1:1; the prepared mixed solution is microemulsified by ultrasonic-assisted stirring at 40°C, wherein the ultrasonic power is 500w and the stirring time is 20 minutes.

[0026] Step 5, wet wipes impregnation: put the pretreated base fabric into the micro-emulsified wormwood extract for immersion treatment for 20 seconds. After the immersion, the wet wipes are post-treated with plasma to enhance the surface activity of the wet wipes and the adsorption capacity of the wormwood extract.

[0027] Step 6: Cutting and packaging: Dry the prepared wet wipes at low temperature, at 40°C for 2 hours, and cut and package the dried wet wipes.

[0028] according to Figure 1As shown, step 1 is also equipped with a countercurrent extraction device 1 for extracting wormwood extract, and the countercurrent extraction device 1 is composed of a plurality of extraction chambers 101 connected to each other. An extraction cylinder 102 for storing the extracted material is arranged at the bottom of the extraction chamber 101. One end of the extraction cylinder 102 is upwardly provided with a feed inlet 105, and the other end is downwardly provided with a discharge port 106; the top position of the extraction chamber 101 farthest from the feed inlet 105 is provided with a liquid inlet 103 connected to the extraction chamber 101, and the liquid inlet 103 is connected to the discharge port 106. The farthest extraction chamber 101 has a liquid outlet 104 at the bottom thereof, which is connected to the extraction chamber 101. The side wall of the extraction cylinder 102 has a plurality of small holes for the extraction solvent to enter. A spiral feeder 107 is provided inside the extraction cylinder 102, and a feed motor 108 for controlling the movement of the feeder 107 is provided outside the side close to the feed port 105. A stirrer 109 is provided inside each extraction chamber 101, and a plurality of motors for controlling the movement of the stirrer 109 are provided at the top of the outside of the extraction chamber 101. The stirring motor 110 is driven; the wormwood extract is extracted by a countercurrent extraction method, the wormwood material enters the extraction cylinder 102 through the feed port 105 at the left end of the countercurrent extraction device 1, and the extraction solvent enters the extraction chamber 101 through the liquid inlet 103 at the right end of the countercurrent extraction device 1, and the wormwood material in the extraction cylinder 102 is driven by the spiral feeder 107 to move in the feeder 107 through the feed motor 108, and the extraction solvent flows in the extraction chamber 101, and the movement directions of the two are opposite, so that the extraction solvent constantly contacts new materials during the flow process, and a high concentration difference is always maintained between the two, so that the active ingredients in the wormwood will continue to transfer to the extraction solvent, and each extraction chamber 101 is provided with a stirrer 109, which can continuously stir the extraction solvent during the extraction process, so that the extraction of the active ingredients is more complete; the extracted wormwood material will be discharged through the discharge port 106 at the bottom right end of the countercurrent extraction device 1, and the extracted extract will be discharged through the liquid outlet 104 at the bottom left end of the countercurrent extraction device 1.

[0029] according to Figure 2 , Figure 3As shown, the preparation of antibacterial wormwood wet wipes is also equipped with a wet wipe production device 2, which includes a device base 201, a mesh-forming table 202 is arranged on the device base 201, an air flow machine 203 is arranged above the mesh-forming table 202, one end of the mesh-forming table 202 is rotatably connected to a raw material roller 204, and the device base 201 is also rotatably connected to a pressing roller 205 that is in contact with the raw material roller 204, and the raw material roller 204 is also provided with a plurality of guide rollers 215 for guiding; after the pressing roller 205 presses the wet wipe base cloth 3, it will be sent to the hot rolling roller 206 for thermal bonding reinforcement, and the two ends of the hot rolling roller 206 are also provided with clamping rollers 208 for clamping and tightening the wet wipe base cloth 3, and the wet wipe base cloth 3 will be wound around after hot pressing. The pretreatment immersion roller 209 is rotatably connected to the pretreatment immersion box 210 below the pretreatment immersion roller 209. The height of the pretreatment immersion roller 209 is lower than the height of the liquid level in the pretreatment immersion box 210. After the pretreatment immersion, the wet wipes base fabric 3 will bypass the drying roller 207 for drying treatment. The drying roller 207 is also provided with clamping rollers 208 at both ends. The wet wipes base fabric 3 will be pretreated after hot pressing and shaping. The pretreatment immersion box 210 is filled with a pretreatment solution. After the wormwood base fabric is soaked in the solution for pretreatment, the antibacterial components in the subsequent wormwood extract can be better distributed on the surface of the base fabric and promoted to be distributed on the surface of the base fabric, thereby further improving the durability and moisturizing effect of the antibacterial effect of the wet wipes.

[0030] according to Figure 3 As shown, after passing through the drying roller 207, the wet wipes base fabric 3 will bypass the bottom of the extracting liquid immersion roller 211, and the extracting liquid immersion roller 211 is rotatably connected and arranged in the extracting liquid immersion box 212. The height of the extracting liquid immersion roller 211 is lower than the height of the liquid level in the extracting liquid immersion box 212. After the wet wipes base fabric 3 is immersed in the extracting liquid, it will eventually pass through the discharging roller 214. The extracting liquid immersion box 212 also has a liquid receiving groove 213 protruding obliquely upward. The protruding length of the liquid receiving groove 213 is longer than the position of the discharging roller 214. The wet wipes base fabric 3 is impregnated, so that the antibacterial components in the wormwood extract can be immersed in the wet wipes, so that the wormwood fibers in the wet wipes base fabric and the immersed wormwood extract have synergistic antibacterial effects, and the antibacterial components such as volatile oils and flavonoids contained in the wormwood fibers themselves work together with the effective components in the wormwood extract, so that the antibacterial and antibacterial effects of the wet wipes are better.

[0031] Example 2

[0032] The difference from the above-mentioned embodiment 1 is that a preparation process of an antibacterial wormwood wet wipe comprises the following steps: Step 1: Pretreatment of wormwood: prepare a composite enzyme containing cellulase, hemicellulase and pectinase in a ratio of 1:1:1, dissolve the prepared composite enzyme in a citric acid-sodium citrate buffer solution, the concentration of the composite enzyme is 2%, and the temperature is 40°C; put the washed wormwood into the composite enzyme solution for pretreatment, and the pretreatment time is 2 hours; Preparation of extract: Use 70% ethanol extraction solvent to perform dynamic countercurrent extraction on the pretreated wormwood. The temperature should not be too high, between 40°C, and the extraction time is 2h. After the extraction, remove the solid residue to obtain the wormwood extract; Extract concentration: The pre-treated wormwood extract is subjected to integrated membrane separation and concentration treatment to further increase the concentration of antibacterial substances such as volatile oils and flavonoids in the extract.

[0033] Step 2, degumming treatment of wormwood fiber: the volume ratio of Bacillus liquid to soaking liquid is 1:8, the degumming treatment temperature is 35°C, the time is 3 days, during which it is stirred, and the stirring speed is 100rpm; after degumming, the wormwood fiber is taken out and rinsed with clean water, and then placed in a well-ventilated environment for air drying; Preparation of wet wipes base fabric: The processed wormwood fiber and viscose fiber are blended in a ratio of 2:8.

[0034] Step 3: Pretreatment of the base fabric: Prepare a polyethylene glycol solution with a concentration of 1.5%, soak the prepared base fabric in the solution at a temperature of 40°C for 60 minutes, and dry it after soaking.

[0035] Step 4. Microemulsification treatment of wormwood extract: add lecithin natural emulsifier and glycerol auxiliary emulsifier to the prepared wormwood extract, wherein the mass ratio of wormwood extract, natural emulsifier and auxiliary emulsifier added is 8.5:1.5:1.5; the prepared mixed solution is microemulsified by ultrasonic-assisted stirring at 40°C, wherein the ultrasonic power is 500w and the stirring time is 20 minutes.

[0036] Step 5, wet wipes impregnation: put the pretreated base fabric into the micro-emulsified wormwood extract for immersion treatment for 20 seconds. After the immersion, the wet wipes are post-treated with plasma to enhance the surface activity of the wet wipes and the adsorption capacity of the wormwood extract.

[0037] Step 6: Cutting and packaging: Dry the prepared wet wipes at low temperature, at 40°C for 2 hours, and cut and package the dried wet wipes.

[0038] Example 3

[0039] The difference from the above-mentioned embodiment 1 and embodiment 2 is that the wet wipes preparation process steps of embodiment 2 are adopted, but in the preparation of the wet wipes base fabric in step 2, modified wormwood fiber is used instead of the original wormwood fiber for blending, and the ratio of modified wormwood fiber and viscose fiber blended to make the wet wipes base fabric is 2:3. The preparation process of the modified wormwood fiber is as follows: the obtained wormwood fiber is soaked in an antibacterial agent solution containing chitosan, the concentration of the chitosan solution is 2%, the temperature is 30°C, the soaking time is 2 hours, and after the soaking is completed, it is taken out and dried so that the antibacterial agent can adhere to the surface of the wormwood fiber to obtain the modified wormwood fiber.

[0040] Comparative Example 1: Under the preparation process of Example 1, the mugwort extract in step 4 is not subjected to microemulsification treatment, and the countercurrent extraction device 1 and wet wipes production device 2 for extracting the mugwort extract of the present invention are not used.

[0041] Comparative Example 2: Under the preparation process of Example 1, the base fabric in step three is not pretreated with a polyethylene glycol solution after preparation, and the countercurrent extraction device 1 and wet wipes production device 2 for extracting wormwood extract of the present invention are not used.

[0042] Comparative Example 3: Under the preparation process of Example 1, the wormwood fiber in step 2 is directly blended with the base fabric without undergoing bio-degumming treatment, and the countercurrent extraction device 1 and wet wipes production device 2 for extracting wormwood extract of the present invention are not used.

[0043] Experimental testing:

[0044] Antibacterial property: Example 3 showed the highest bactericidal rate (95%), indicating that the preparation process of Example 3 had the best antibacterial effect; the antibacterial effects of Example 1 (85%) and Example 2 (88%) were also quite significant, but the antibacterial effect of Comparative Example 1 (75%) was the worst, indicating that the preparation of modified wormwood fiber and the microemulsification treatment of wormwood extract are more important for improving the antibacterial properties of wormwood wipes.

[0045] Moisture retention: The moisture retention rate (90%) of Examples 2 and 3 is the best, indicating that the preparation processes of Reference Examples 2 and 3 are better than those of other Examples and Comparative Examples in terms of moisture retention. The moisture retention rate (80%) of the preparation process of Reference Example 1 is second, and the moisture retention rate (65%) of Comparative Example 2 is the lowest, indicating that pretreatment of the wet wipes base fabric after preparation can significantly improve the moisture retention of the wet wipes.

[0046] Irritation: The irritation of Examples 2 and 3 (0.5 / 10) is the smallest, indicating that the preparation process of Reference Examples 2 and 3 is superior to other Examples and Comparative Examples in terms of irritation. The irritation of the wet wipes prepared in Example 1 (1 / 10) is also small, which is better than other comparative examples. However, the irritation of the wet wipes prepared in Comparative Example 3 (2 / 10) is large, indicating that the bio-degumming treatment of wormwood fibers in the preparation of the base fabric has a significant effect on reducing the irritation of the wet wipes after preparation.

Claims

1. A preparation process of antibacterial wormwood wet wipes, characterized in that: The following steps are involved: S1, preparation of wormwood extract, picking wormwood, cleaning the wormwood and placing it in a complex enzyme solution for pretreatment, and extracting the wormwood using a dynamic countercurrent extraction technique to obtain a wormwood extract after the pretreatment; S2, wet wipes base fabric preparation, the wormwood fiber for preparing the base fabric is subjected to biological degumming treatment, and the degummed wormwood fiber and viscose fiber are blended in a certain proportion to prepare the wet wipes base fabric; S3, pretreatment of the base fabric, preparing a pretreatment solution, soaking the prepared wet wipes base fabric in the prepared pretreatment solution for base fabric pretreatment, and drying the base fabric after the pretreatment is completed; S4, microemulsification treatment of the wormwood extract, adding a natural emulsifier and an auxiliary emulsifier to the prepared wormwood extract, stirring the wormwood extract and completing the microemulsification treatment of the wormwood extract; S5, wet wipes impregnation, the base fabric after pretreatment is placed in the micro-emulsified wormwood extract for impregnation treatment, and after the impregnation, the wet wipes are subjected to plasma post-treatment to enhance the surface activity of the wet wipes and the adsorption capacity of the wormwood extract; S6, cutting and packaging, drying the prepared wet wipes at low temperature, and cutting and packaging the dried wet wipes.

2. The preparation process of an antibacterial wormwood wet wipe according to claim 1, characterized in that: The detailed steps of the preparation process are: S1. Preparation of wormwood extract, selecting wormwood in a vigorous growth period for picking, washing it after picking, and removing impurities such as soil; placing the washed wormwood in a complex enzyme solution containing cellulase, hemicellulase and pectinase for pretreatment, placing the wormwood in an ethanol extraction solvent and extracting it using a dynamic countercurrent extraction technology to obtain a wormwood extract; S2, preparing the wet wipes base fabric, soaking the wormwood fiber in a solution containing Bacillus liquid for degumming, and blending the treated wormwood fiber and viscose fiber in a ratio of 2:8; S3, pretreatment of the base fabric, preparing a polyethylene glycol pretreatment solution with a concentration of 0.5% to 2%, soaking the prepared base fabric in the prepared pretreatment solution, controlling the temperature between 30°C and 40°C, soaking time for 30 to 60 minutes, and drying the base fabric after the soaking; S4, microemulsification treatment of wormwood extract, adding lecithin natural emulsifier and glycerin auxiliary emulsifier to the prepared wormwood extract, wherein the weight ratio of wormwood extract, natural emulsifier and auxiliary emulsifier added is 7:1:1; the prepared mixed solution is stirred by ultrasound at 40-60°C to achieve microemulsification of the wormwood extract, wherein the ultrasonic power is 300-500w, and the stirring time is 10-20 minutes; S5, wet wipes impregnation, the base fabric after pretreatment is placed in the micro-emulsified wormwood extract for impregnation treatment, the impregnation time is 10-30s, and after the impregnation, the wet wipes are subjected to plasma post-treatment to enhance the surface activity of the wet wipes and the adsorption capacity of the wormwood extract; S6, cutting and packaging, the prepared wet wipes are dried at low temperature, at a temperature of 30-40°C for 1-2 hours, and the dried wet wipes are cut and packaged.

3. The preparation process of an antibacterial wormwood wet wipe according to claim 2, characterized in that: Step S1 includes the following steps: S11, preparing a composite enzyme containing cellulase, hemicellulase and pectinase in a ratio of 1:1:1; dissolving the prepared composite enzyme in a citric acid-sodium citrate buffer solution, wherein the concentration of the composite enzyme is 0.5%-2%, and the temperature is between 40°C and 50°C; placing the washed wormwood in the composite enzyme solution for pretreatment, and the pretreatment time is 2-4 hours; S12, using 70% to 80% ethanol extraction solvent to perform dynamic countercurrent extraction on the pretreated wormwood, the temperature should not be too high, between 40° C. and 60° C., and the extraction time is 2-3 hours; after the extraction is completed, the solid residue is removed to obtain a wormwood extract; S13, subjecting the pretreated mugwort extract to an integrated membrane separation and concentration process to further increase the concentration of antibacterial substances such as volatile oils, flavonoids and other antibacterial substances in the extract.

4. The preparation process of an antibacterial wormwood wet wipe according to claim 1, characterized in that: In the biological degumming treatment of step S2, the volume ratio of the Bacillus liquid to the soaking liquid is 1:8~1:10, the degumming treatment temperature is between 30~35°C, the time is 3~5 days, and stirring is carried out during the period, and the stirring speed is 50~100rpm; after the degumming is completed, the wormwood fiber is taken out and rinsed with clean water, and then placed in a well-ventilated environment for air drying.

5. The preparation process of the antibacterial wormwood wet wipes according to claim 1, characterized in that: The blended wormwood fiber in step S2 is soaked in an antibacterial agent solution containing chitosan, the temperature is controlled between 30 and 40°C, and after stirring and mixing evenly, the wormwood fiber is taken out and dried to obtain modified wormwood fiber. The ratio of the modified wormwood fiber and viscose fiber blended to form a wet wipe base cloth is 2:

3.

6. The preparation process of the antibacterial wormwood wet wipes according to claim 1, characterized in that: Step S1 is also provided with a countercurrent extraction device (1) for extracting wormwood extract, the countercurrent extraction device (1) comprising a plurality of interconnected extraction chambers (101), the bottom end of the extraction chamber (101) being provided with an extraction cylinder (102) for storing the extract material, one end of the extraction cylinder (102) being provided with an upward feed port (105), and the other end being provided with a downward discharge port (106); a liquid inlet (103) communicating with the extraction chamber (101) being provided at the top of the extraction chamber (101) farthest from the feed port (105), and a liquid outlet (104) communicating with the extraction chamber (101) being provided at the bottom of the extraction chamber (101) farthest from the discharge port (106).

7. The preparation process of the antibacterial wormwood wet wipes according to claim 6, characterized in that: The side wall of the extraction cylinder (102) is provided with a plurality of small holes for the extraction solvent to enter, and a spiral feeder (107) is also provided inside the extraction cylinder (102), and a feeding motor (108) for controlling the movement of the feeder (107) is also provided on the outside near the feeding port (105); a stirrer (109) is provided in each extraction chamber (101), and a plurality of stirring motors (110) for controlling the movement of the stirrer (109) are also provided on the top of the outside of the extraction chamber (101).

8. The preparation process of the antibacterial wormwood wet wipes according to claim 1, characterized in that: The preparation of antibacterial mugwort wet wipes is also provided with a wet wipes production device (2), the wet wipes production device (2) comprising a device base (201), a web-forming table (202) being arranged on the device base (201), an air flow machine (203) being arranged above the web-forming table (202); a raw material roller (204) being rotatably connected to one end of the web-forming table (202), a pressing roller (205) being rotatably connected to the device base (201) and being in contact with the raw material roller (204), and a plurality of guide rollers (215) being arranged on the raw material roller (204) for guiding.

9. The preparation process of the antibacterial wormwood wet wipes according to claim 8, characterized in that: After the laminating roller (205) has laminated the wet wipe base fabric (3), it will be sent to the hot calender roller (206) for thermal bonding reinforcement. The hot calender roller (206) is also provided with clamping rollers (208) at both ends for clamping and tightening the wet wipe base fabric (3). After the hot pressing, the wet wipe base fabric (3) will pass under the pretreatment immersion roller (209). The pretreatment immersion roller (209) is rotatably connected and arranged in the pretreatment immersion tank (210). The height of the pretreatment immersion roller (209) is lower than the height of the liquid level in the pretreatment immersion tank (210). After the pretreatment immersion, the wet wipe base fabric (3) will pass by the drying roller (207) for drying. The drying roller (207) is also provided with clamping rollers (208) at both ends.

10. The preparation process of the antibacterial wormwood wet wipes according to claim 9, characterized in that: After passing through the drying roller (207), the wet wipe base cloth (3) will bypass the bottom of the extracting liquid immersion roller (211); the extracting liquid immersion roller (211) is rotatably connected and arranged in the extracting liquid immersion box (212); the height of the extracting liquid immersion roller (211) is lower than the height of the liquid level in the extracting liquid immersion box (212); after the wet wipe base cloth (3) is immersed in the extracting liquid, it will eventually pass out through the discharge roller (214); the extracting liquid immersion box (212) is also provided with a liquid receiving groove (213) protruding obliquely upward, and the protruding length of the liquid receiving groove (213) is longer than the position of the discharge roller (214).

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