Bacteriostatic hygienic wipes, method of preparation and use

Abstract

The present application relates to bacteriostatic sanitary wet wipes, preparation method and application, belong to sanitary article technical field;The present application carries out ring opening quaternary ammonium reaction with N-(3-dimethylaminopropyl) methacrylamide glycidyl ether and polyethylene glycol monomethyl ether, obtain methacrylamide group-quaternary ammonium salt-polyethylene glycol derivative;Methacrylamide group-quaternary ammonium salt-polyethylene glycol derivative, syringaldehyde, triphenylphosphine and azobisdimethylvaleronitrile occur condensation reaction, obtain multifunctional intermediate containing double bond, quaternary ammonium salt, polyethylene glycol segment and terminal aldehyde group structure simultaneously;Under the protection of nitrogen, with cerium nitrate as initiator, through the grafting reaction of intermediate and non-woven fabric, obtain modified non-woven fabric;The modified non-woven fabric is added to purified water and soaked, and sealed and packaged.The long-acting antibacterial, safe, long-lasting moisturizing, lubricating performance and irreversible chemical deodorization are realized in the material level of the synergistic unity.

Description

Technical Field

[0001] This invention belongs to the field of hygiene products technology, specifically relating to antibacterial sanitary wipes, their preparation method, and their application. Background Technology

[0002] Sanitary wipes, as disposable hygiene products, are widely used in personal care, maternal and infant cleaning, and medical disinfection.

[0003] Current antibacterial wipes generally employ a "multi-component physical compounding" formulation approach—adding quaternary ammonium salt antibacterial agents (such as benzalkonium chloride), polyol moisturizers (such as glycerin), and deodorizers (such as cyclodextrin and fragrance) separately to the wipe liquid, which is then used to impregnate non-woven fabric. However, free quaternary ammonium salt molecules adhere to the fiber surface through physical adsorption, lacking chemical bonding. During wiping, the quaternary ammonium salt migrates towards the edge of the wipe with the liquid flow, causing the local antibacterial concentration to drop below the minimum inhibitory concentration, and the antibacterial effect significantly diminishes with use. Small molecule moisturizers such as glycerin combine with water through reversible hydrogen bonds to form a hydration layer, but during repeated wiping and evaporation, the moisturizing molecules gradually detach from the fiber surface and enter the liquid phase, failing to form a durable and stable hydration layer. The wipes quickly lose water and dry out after opening, and the deodorizing function mainly relies on the physical encapsulation of cyclodextrin or the masking of fragrance odor. The odor-eliminating active ingredients only have reversible physical interactions with odor molecules, such as van der Waals forces and hydrogen bonds. The binding energy is usually less than 10 kcal per mole. Odor molecules are easily desorbed and released again during wiping or placement, and cannot completely eliminate odors from the molecular level. Summary of the Invention

[0004] The purpose of this invention is to provide antibacterial sanitary wipes, their preparation method, and their application, in order to solve the problems mentioned in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions: Antibacterial sanitary wipes, their preparation method, and application, including the following steps: Step 1: Polyethylene glycol monomethyl ether glycidyl ether undergoes a ring-opening quaternization reaction with N-(3-dimethylaminopropyl)methacrylamide to obtain a methacrylamide-quaternary ammonium salt-polyethylene glycol derivative. Reaction equation:

[0006] In the second step, a condensation reaction occurs between methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine, and diisopropyl azodicarbonate to obtain a multifunctional intermediate containing a double bond, quaternary ammonium salt, polyethylene glycol segment, and terminal aldehyde group. Reaction equation:

[0007] The third step involves using ammonium cerium nitrate as an initiator under nitrogen protection to graft the intermediate onto the nonwoven fabric to obtain the modified nonwoven fabric. Step 4: Soak the modified nonwoven fabric in purified water and seal it in a package.

[0008] Furthermore, the molar ratio of N-(3-dimethylaminopropyl)methacrylamide to polyethylene glycol monomethyl ether glycidyl ether is (1.5–1.8):1; The molar ratio of methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and diisopropyl azodicarbonate is 1:(1.1-1.5):(1.1-1.5):(1.1-1.5).

[0009] Furthermore, glacial acetic acid accounts for 0.5% to 2.0% of the mass of N-(3-dimethylaminopropyl)methacrylamide, p-hydroxyanisole accounts for 0.05% to 0.5% of the mass of N-(3-dimethylaminopropyl)methacrylamide, and the ratio of anhydrous tetrahydrofuran to methacrylamide-quaternary ammonium salt-polyethylene glycol derivative is (8 to 15) mL: 1 g.

[0010] Furthermore, the ring-opening quaternization reaction is carried out at a temperature of 60–80°C for 4–8 hours, and the condensation reaction is carried out at a temperature of 40–80°C for 8–16 hours.

[0011] Furthermore, the mass concentration of the intermediate is 0.75% to 1.25%.

[0012] Furthermore, the amount of cerium ammonium nitrate solution added is 1% to 6% of the total volume of the reaction system.

[0013] Furthermore, the grafting reaction is carried out at a temperature of 40–60°C, for a reaction time of 1–4 h, and at a pH value of 1.5–2.0.

[0014] Furthermore, the mass ratio of the modified nonwoven fabric to purified water is 1:(2.5-3).

[0015] Antibacterial sanitary wipes are prepared by any of the above preparation steps.

[0016] Antibacterial sanitary wipes are prepared by any of the above preparation steps and are used in daily hygiene products.

[0017] The beneficial effects of this invention are: 1) This invention integrates a polymerizable group of methacrylamide, a quaternary ammonium salt antibacterial group, a polyethylene glycol moisturizing segment, and a terminal aldehyde deodorizing group into a single polymerizable intermediate through molecular design. By initiating graft copolymerization with free radicals, the quaternary ammonium salt is covalently anchored to the fiber surface, fundamentally solving the problem of antibacterial component migration and loss. The polyethylene glycol segments are covalently linked, constructing a stable hydration layer on the fiber surface, solving the problem of easy detachment of small molecule moisturizers through physical adsorption. The terminal aldehyde group can undergo an irreversible Schiff base reaction with amine odor molecules to form covalent imine bonds, solving the problem of reversible desorption in physical deodorization.

[0018] 2) In this invention, polyethylene glycol segments and quaternary ammonium salts are connected by chemical bonds to form a hydrophilic polymer molecular brush on the fiber surface. When the wet wipe is squeezed or wiped, the molecular brush provides steric hindrance and interfacial lubrication, which not only reduces frictional damage between fibers, but also firmly locks in moisture.

[0019] 3) When the terminal aromatic aldehyde group of this invention comes into contact with malodorous amine molecules such as ammonia and trimethylamine in sweat, a Schiff base reaction occurs rapidly to generate stable imine bonds, permanently fixing the malodorous molecules to the fiber surface.

[0020] 4) This invention transfers functionality from the liquid wipes to the nonwoven fabric solid phase, and the liquid wipes formula is greatly simplified to purified water, which has significant economic and environmental benefits. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0022] The raw materials used in this invention are not particularly restricted in terms of their source; they can be purchased from the market or prepared using conventional methods known to those skilled in the art. Example 1

[0023] The preparation method of antibacterial sanitary wipes includes the following steps: Step 1: Under nitrogen protection, polyethylene glycol monomethyl ether glycidyl ether, N-(3-dimethylaminopropyl)methacrylamide, glacial acetic acid, isopropanol and p-hydroxyanisole were mixed and heated to 60°C for 4 hours. After post-treatment, a methacrylamide-quaternary ammonium salt-polyethylene glycol derivative was obtained. Further explanation is needed: The post-treatment process is as follows: After the reaction is complete, excess solvent and unreacted raw materials are removed by vacuum distillation. The residue is dissolved in a small amount of isopropanol, and then acetone is added to precipitate it. This dissolution-precipitation process is repeated 3 times to obtain the final product. The reaction molar ratio of N-(3-dimethylaminopropyl)methacrylamide to polyethylene glycol monomethyl ether glycidyl ether is 1.5:1, the amount of isopropanol is 66.7% of the mass of the reactants, the amount of glacial acetic acid is 0.5% of the mass of N-(3-dimethylaminopropyl)methacrylamide, and the amount of p-hydroxyanisole is 0.05% of the mass of N-(3-dimethylaminopropyl)methacrylamide.

[0024] The second step involves mixing methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and anhydrous tetrahydrofuran under nitrogen protection, and slowly adding diisopropyl azodicarbonate dropwise at room temperature. After the addition is complete, the mixture is reacted at 40°C for 8 hours, and the intermediate is obtained after post-treatment. Further explanation is needed: The post-treatment process is as follows: After the reaction is completed, a small amount of deionized water is added, tetrahydrofuran is removed by vacuum distillation, the residue is dissolved in dichloromethane, washed three times with saturated brine and twice with deionized water, the organic phase is dried with anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and eluted by silica gel column chromatography to obtain the final product. The molar ratio of methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and diisopropyl azodicarbonate is 1:1.1:1.1:1.1, and the molar ratio of anhydrous tetrahydrofuran to methacrylamide-quaternary ammonium salt-polyethylene glycol derivative is 8 mL:1 g.

[0025] Step 3: Under nitrogen atmosphere and pH 1.5, the pretreated nonwoven fabric and intermediate solution are mixed at a bath ratio of 1:40, and cerium ammonium nitrate solution is slowly added dropwise. The mixture is stirred at 40°C for 1 hour. After the reaction is completed, the nonwoven fabric is taken out, washed with hot water 6 times, and dried in a vacuum oven at 50°C to obtain the modified nonwoven fabric. It should be further explained that the pretreatment process for nonwoven fabric is as follows: the cellulose-based nonwoven fabric is pretreated by boiling in 1.0% hydrochloric acid for 15 minutes, and then washed with deionized water until neutral. Preparation of intermediate solution: The intermediate is prepared into a 0.75% (w / w) solution using dilute nitric acid solution with a pH of 1.5; Preparation process of cerium ammonium nitrate solution: Cerium ammonium nitrate is prepared into a 0.05 mol / L solution using 1 mol / L dilute nitric acid; The amount of cerium ammonium nitrate solution added is 1% of the total volume of the reaction system; Step 4: Preparation of finished wet wipes: Mix the modified nonwoven fabric with purified water at a mass ratio of 1:2.5, soak the fabric, seal and package it to obtain the finished antibacterial sanitary wet wipes.

[0026] An antibacterial sanitary wipe is prepared by the above preparation steps. Example 2

[0027] The preparation method of antibacterial sanitary wipes includes the following steps: Step 1: Under nitrogen protection, polyethylene glycol monomethyl ether glycidyl ether, N-(3-dimethylaminopropyl)methacrylamide, glacial acetic acid, isopropanol and p-hydroxyanisole were mixed and heated to 70°C for 6 hours. After post-treatment, a methacrylamide-quaternary ammonium salt-polyethylene glycol derivative was obtained. Further explanation is needed: The post-treatment process is as follows: After the reaction is complete, excess solvent and unreacted raw materials are removed by vacuum distillation. The residue is dissolved in a small amount of isopropanol, and then acetone is added to precipitate it. This dissolution-precipitation process is repeated 3 times to obtain the final product. The reaction molar ratio of N-(3-dimethylaminopropyl)methacrylamide to polyethylene glycol monomethyl ether glycidyl ether was 1.65:1, the amount of isopropanol was 66.7% of the mass of the reactants, the amount of glacial acetic acid was 1.2% of the mass of N-(3-dimethylaminopropyl)methacrylamide, and the amount of p-hydroxyanisole was 0.075% of the mass of N-(3-dimethylaminopropyl)methacrylamide.

[0028] The second step involves mixing methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and anhydrous tetrahydrofuran under nitrogen protection, and slowly adding diisopropyl azodicarbonate dropwise at room temperature. After the addition is complete, the mixture is reacted at 60°C for 12 hours, and the intermediate is obtained after post-treatment. Further explanation is needed: The post-treatment process is as follows: After the reaction is completed, a small amount of deionized water is added, tetrahydrofuran is removed by vacuum distillation, the residue is dissolved in dichloromethane, washed three times with saturated brine and twice with deionized water, the organic phase is dried with anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and eluted by silica gel column chromatography to obtain the final product. The molar ratio of methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and diisopropyl azodicarbonate is 1:1.3:1.3:1.3, and the molar ratio of anhydrous tetrahydrofuran to methacrylamide-quaternary ammonium salt-polyethylene glycol derivative is 11 mL:1 g.

[0029] Step 3: Under nitrogen atmosphere and pH 1.8 conditions, the pretreated nonwoven fabric and intermediate solution were mixed at a bath ratio of 1:40, and cerium ammonium nitrate solution was slowly added dropwise. The mixture was stirred and reacted at 50°C for 2.5 hours. After the reaction was completed, the nonwoven fabric was taken out, washed with hot water 6 times, and dried in a vacuum oven at 50°C to obtain the modified nonwoven fabric. It should be further explained that the pretreatment process for nonwoven fabric is as follows: the cellulose-based nonwoven fabric is pretreated by boiling in 1.0% hydrochloric acid for 15 minutes, and then washed with deionized water until neutral. Preparation of intermediate solution: The intermediate is prepared into a 1.0% (w / w) solution using dilute nitric acid solution with a pH of 1.8; Preparation process of cerium ammonium nitrate solution: Cerium ammonium nitrate is prepared into a 0.05 mol / L solution using 1 mol / L dilute nitric acid; The amount of cerium ammonium nitrate solution added is 3.4% of the total volume of the reaction system.

[0030] Step 4: Preparation of finished wet wipes: Mix the modified nonwoven fabric with purified water at a mass ratio of 1:2.8, soak the fabric, seal and package it to obtain the finished antibacterial sanitary wet wipes.

[0031] An antibacterial sanitary wipe is prepared by the above preparation steps. Example 3

[0032] The preparation method of antibacterial sanitary wipes includes the following steps: Step 1: Under nitrogen protection, polyethylene glycol monomethyl ether glycidyl ether, N-(3-dimethylaminopropyl)methacrylamide, glacial acetic acid, isopropanol and p-hydroxyanisole were mixed and heated to 80°C for 8 hours. After post-treatment, a methacrylamide-quaternary ammonium salt-polyethylene glycol derivative was obtained. Further explanation is needed: The post-treatment process is as follows: After the reaction is complete, excess solvent and unreacted raw materials are removed by vacuum distillation. The residue is dissolved in a small amount of isopropanol, and then acetone is added to precipitate it. This dissolution-precipitation process is repeated 3 times to obtain the final product. The reaction molar ratio of N-(3-dimethylaminopropyl)methacrylamide to polyethylene glycol monomethyl ether glycidyl ether is 1.8:1, the amount of isopropanol is 66.7% of the mass of the reactants, the amount of glacial acetic acid is 2.0% of the mass of N-(3-dimethylaminopropyl)methacrylamide, and the amount of p-hydroxyanisole is 0.1% of the mass of N-(3-dimethylaminopropyl)methacrylamide.

[0033] The second step involves mixing methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and anhydrous tetrahydrofuran under nitrogen protection, and slowly adding diisopropyl azodicarbonate dropwise at room temperature. After the addition is complete, the mixture is reacted at 80°C for 16 hours, and the intermediate is obtained after post-treatment. Further explanation is needed: The post-treatment process is as follows: After the reaction is completed, a small amount of deionized water is added, tetrahydrofuran is removed by vacuum distillation, the residue is dissolved in dichloromethane, washed three times with saturated brine and twice with deionized water, the organic phase is dried with anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and eluted by silica gel column chromatography to obtain the final product. The molar ratio of methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine and diisopropyl azodicarbonate is 1:1.5:1.5:1.5, and the molar ratio of anhydrous tetrahydrofuran to methacrylamide-quaternary ammonium salt-polyethylene glycol derivative is 15mL:1g.

[0034] Step 3: Under nitrogen atmosphere and pH 2.0 conditions, the pretreated nonwoven fabric and intermediate solution are mixed at a bath ratio of 1:40, and cerium ammonium nitrate solution is slowly added dropwise. The mixture is stirred at 60°C for 4 hours. After the reaction is completed, the nonwoven fabric is taken out, washed with hot water 6 times, and dried in a vacuum oven at 50°C to obtain the modified nonwoven fabric. It should be further explained that the pretreatment process for nonwoven fabric is as follows: the cellulose-based nonwoven fabric is pretreated by boiling in 1.0% hydrochloric acid for 15 minutes, and then washed with deionized water until neutral. Preparation of intermediate solution: The intermediate is prepared into a 1.25% (w / w) solution using dilute nitric acid solution with a pH of 2.0; Preparation process of cerium ammonium nitrate solution: Cerium ammonium nitrate is prepared into a 0.05 mol / L solution using 1 mol / L dilute nitric acid; The amount of cerium ammonium nitrate solution added is 6% of the total volume of the reaction system.

[0035] Step 4: Preparation of finished wet wipes: Mix the modified nonwoven fabric with purified water at a mass ratio of 1:3.0, soak the fabric, seal and package it to obtain the finished antibacterial sanitary wet wipes.

[0036] An antibacterial sanitary wipe is prepared by the above preparation steps.

[0037] Comparative Example 1 The comparative example is a sanitary wipe made using the preparation method of Chinese Patent No. CN 116509781B.

[0038] Experimental Example 1 The wet wipes samples prepared in Examples 1-3 and Comparative Example 1 were subjected to performance tests. The test items and reference standards are as follows: Antibacterial and wash-resistant properties: Tested according to the "Hygienic Standard for Disposable Sanitary Products" GB 15979-2024, the test strains were Escherichia coli (ATCC 25922) and Staphylococcus aureus (ATCC 6538), the neutralizing agent was D / E neutralizing broth (verified by neutralizing agent identification test), and the contact time was 5 minutes. The initial antibacterial rate, the antibacterial rate after 3 months of accelerated storage at 37℃, and the antibacterial rate after 10 washes were tested. The washing method was that the sample was rubbed and squeezed with deionized water 5 times, which was counted as 1 wash.

[0039] Moisturizing durability: The wet wipe samples (10cm×10cm) were removed from the sealed packaging and freely hung in an open environment at 25℃±2℃ and relative humidity of 50%±5%. The sample mass was weighed at 0h and 24h, and the moisture retention rate was calculated. Moisture retention rate (%) = (sample mass after 24h / sample mass at 0h) × 100%.

[0040] Odor removal performance test: Trimethylamine standard gas was injected into a 20L sealed test chamber to achieve an initial concentration of 50ppm. A wet wipe sample (10cm×10cm) was suspended inside the chamber, and the trimethylamine concentration was measured using a gas detection tube (Gastec) at 0, 10, 30, and 60 minutes to calculate the removal rate. After the 60-minute test, the sample was removed and left for 24 hours. The re-release of trimethylamine was detected using headspace gas chromatography-mass spectrometry (HS-GC-MS). Another sample after the 60-minute test was analyzed using Fourier transform infrared spectroscopy (FT-IR), monitoring the characteristic peak of C=N stretching vibration at 1640-1690cm⁻¹ to confirm the irreversibility of Schiff base covalent bonding.

[0041] Skin irritation test: Refer to the method for repeated skin irritation tests in the "Cosmetic Safety Technical Specifications" (2015 edition).

[0042] Shelf-life stability verification: The antibacterial rate of the sample from Example 1 was retested after being sealed and placed at room temperature (25℃±5℃) and relative humidity (60%±10%) for 12 months. Correlation analysis was performed with the data from accelerated aging at 37℃ for 3 months to demonstrate the equivalence of accelerated aging and long-term stability.

[0043] Table 1

[0044] Table 2

[0045] As shown in Table 1, Examples 1-3 all exhibited initial antibacterial rates ≥99% against Escherichia coli and Staphylococcus aureus. After accelerated storage at 37°C for 3 months, the antibacterial rate of the examples showed almost no decrease, remaining ≥98.5%. After 10 washes, the antibacterial rate of the examples also remained ≥98%, fully demonstrating the long-lasting antibacterial and wash-resistant advantages conferred by covalent grafting. Although Comparative Example 1 initially achieved an antibacterial rate of over 98%, after accelerated storage for 3 months, the antibacterial rate decreased to approximately 45%, and after 10 washes, it further decreased to around 10%, almost completely losing its antibacterial ability, indicating that a large amount of antibacterial components were lost during storage and use.

[0046] As shown in Table 2, the 24-hour moisture retention rates of Examples 1-3 were all above 56%, with Example 2 reaching as high as 68.7%, more than twice that of Comparative Example 1 (28.6%), demonstrating the excellent and long-lasting water-locking properties of the modified nonwoven fabric. Regarding deodorization, the examples all achieved a 60-minute removal rate of over 96% for trimethylamine, and the re-release after 24 hours was below the detection limit, proving that the deodorization mechanism of the modified nonwoven fabric is irreversible chemical bonding; Comparative Example 1 relied solely on physical adsorption, achieving a removal rate of only 52.3% and exhibiting significant desorption. In terms of safety, all samples had a skin irritation index of 0, classifying them as non-irritating products.

[0047] The descriptions of the above embodiments are merely illustrative of the methods and core ideas of the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preparing antibacterial sanitary wipes, characterized in that, Includes the following steps: Step 1: Polyethylene glycol monomethyl ether glycidyl ether undergoes a ring-opening quaternization reaction with N-(3-dimethylaminopropyl)methacrylamide to obtain a methacrylamide-quaternary ammonium salt-polyethylene glycol derivative. In the second step, a condensation reaction occurs between methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine, and diisopropyl azodicarbonate to obtain a multifunctional intermediate containing a double bond, quaternary ammonium salt, polyethylene glycol segment, and terminal aldehyde group. The third step involves using ammonium cerium nitrate as an initiator under nitrogen protection to graft the intermediate onto the nonwoven fabric via a process that yields the modified nonwoven fabric. Step 4: Soak the modified nonwoven fabric in purified water and seal it in a package.

2. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The reaction molar ratio of N-(3-dimethylaminopropyl)methacrylamide to polyethylene glycol monomethyl ether glycidyl ether is (1.5-1.8):1; the molar ratio of methacrylamide-quaternary ammonium salt-polyethylene glycol derivative, eugenol, triphenylphosphine to diisopropyl azodicarbonate is 1:(1.1-1.5):(1.1-1.5):(1.1-1.5).

3. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The ring-opening quaternization reaction uses glacial acetic acid as a catalyst, with glacial acetic acid accounting for 0.5% to 2.0% of the mass of N-(3-dimethylaminopropyl)methacrylamide. The ring-opening quaternization reaction uses hydroxyanisole as a polymerization inhibitor, with p-hydroxyanisole accounting for 0.05% to 0.1% of the mass of N-(3-dimethylaminopropyl)methacrylamide.

4. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The ring-opening quaternization reaction is carried out at a temperature of 60–80°C for 4–8 hours, and the condensation reaction is carried out at a temperature of 40–80°C for 8–16 hours.

5. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The intermediate has a mass concentration of 0.75% to 1.25%.

6. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The amount of cerium ammonium nitrate solution added is 1% to 6% of the total volume of the reaction system.

7. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The grafting reaction is carried out at a temperature of 40–60°C, for a reaction time of 1–4 h, and at a pH of 1.5–2.

0.

8. The method for preparing antibacterial sanitary wipes according to claim 1, characterized in that, The mass ratio of modified nonwoven fabric to purified water is 1:(2.5-3).

9. Application of antibacterial sanitary wipes, characterized in that, Antibacterial sanitary wipes are prepared by the preparation method described in any one of claims 1 to 8.

10. Antibacterial sanitary wipes, characterized in that, The antibacterial sanitary wipes prepared by the preparation method according to any one of claims 1 to 9 are used in daily hygiene products.

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