Antibacterial toilet paper and preparation method thereof

Abstract

The antibacterial toilet paper comprises the following components in percentage by mass: 20%-50% of raw wood pulp, 20%-50% of bamboo pulp, 10%-20% of quaternized chitosan, 5%-10% of tea polyphenol, 1%-5% of a nano-silver compound, 1%-2% of aloesin, 1%-2% of a folium artemisiae argyi extract, 5%-10% of a dispersing agent, 0.5%-2% of a softening agent and 0.5%-2% of a wet strength agent. Preparing the antibacterial toilet paper according to the mass percentage; under the combined action of the natural antibacterial agent and the nano-silver compound, the antibacterial rate on common pathogenic bacteria such as escherichia coli, staphylococcus aureus and candida albicans is larger than or equal to 99%, the antibacterial effect is lasting, and sanitation and health of a user are effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of toilet paper, and particularly to an antibacterial toilet paper and a preparation method thereof. Background Art

[0002] Toilet paper is an indispensable item in daily life and is widely used in personal hygiene, household cleaning, medical care and other fields; however, the main functions of traditional toilet paper are limited to cleaning and water absorption, lacking antibacterial properties; in daily use, especially in humid environments, toilet paper is prone to becoming a breeding ground for bacteria. Especially in places with higher humidity such as bathrooms and kitchens, pathogenic bacteria such as Escherichia coli and Staphylococcus aureus may adhere to the surface of toilet paper, posing a potential threat to the health of users.

[0003] At present, some toilet paper products on the market have tried to improve antibacterial properties by adding chemical antibacterial agents (such as triclosan, quaternary ammonium salts, etc.). However, these chemical antibacterial agents may cause irritation to human skin, and long-term contact may cause allergies or other health problems; the antibacterial activity of chemical antibacterial agents gradually weakens over time and cannot provide long-term protection; and some chemical antibacterial agents are difficult to degrade, causing negative impacts on the ecological environment; in addition, existing antibacterial toilet paper products use post-treatment processes, such as spraying antibacterial agents to achieve antibacterial functions, but this method results in uneven distribution of antibacterial agents and affects the use effect.

[0004] In view of the above problems, it is urgent to develop an antibacterial toilet paper with high antibacterial efficiency, safety and environmental protection, uniform distribution of antibacterial agents and simple preparation process to solve the deficiencies in the prior art. Summary of the Invention

[0005] The object of the present invention is to provide an antibacterial toilet paper and a preparation method thereof. The antibacterial toilet paper obtained by this preparation method uses the synergistic effect of natural antibacterial agents and nano antibacterial agents to reduce the harm to the human body and the environment, continuously and efficiently inhibit the growth of bacteria, and solve the problems existing in the above prior art.

[0006] An antibacterial toilet paper includes the following components in mass percentage ratio: 20% - 50% of virgin wood pulp, 20% - 50% of bamboo pulp, 10% - 20% of quaternized chitosan, 5% - 10% of tea polyphenols, 1% - 5% of nano silver complex, 1% - 2% of aloin, 1% - 2% of mugwort leaf extract, 5% - 10% of dispersant, 0.5% - 2% of softener, and 0.5% - 2% of wet strength agent.

[0007] The present invention selects virgin wood pulp and bamboo pulp as basic raw materials. The virgin wood pulp fibers are long and have good toughness, which gives the toilet paper good strength and softness, making the product not easily damaged during use, thereby improving the user experience; bamboo pulp, with its natural antibacterial properties, fundamentally enhances the antibacterial properties of the toilet paper, and its fiber texture is fine, which helps to improve the touch of the paper.

[0008] The present invention adopts quaternized chitosan, and the positively charged groups in the molecular structure of the chitosan interact with the negatively charged components of the microbial cell membrane, thereby destroying the cell integrity and interfering with the microbial metabolic process, thereby achieving an antibacterial effect; the tea polyphenols are adopted, and the molecular structure of the tea polyphenols is rich in active groups such as phenolic hydroxyl groups, and these groups can accurately destroy the cell membrane and protein structure of the bacteria, thereby achieving a highly efficient antibacterial effect; the wormwood leaf extract also has a broad-spectrum antibacterial property, has a significant inhibitory effect on a variety of common bacteria and fungi, and can release a natural fragrance, adding a unique flavor to the toilet paper; the nano silver particles are adopted, because of their extremely small particle size and large specific surface area, they can fully contact with the bacteria and quickly kill them, and the antibacterial effect is long-lasting, and it is not easy for bacteria to develop drug resistance.

[0009] Preferably, the preparation method of the quaternized chitosan comprises the following steps:

[0010] Chitosan with a deacetylation degree of ≥75% and a molecular weight of ≥200000Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 60°C to 70°C for 6 to 8 hours, then acetone is added, and the mixture is fully stirred at room temperature for 10 to 15 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan.

[0011] The present invention introduces quaternary ammonium groups into chitosan molecules. Since chitosan itself has antibacterial properties and it is positively charged, it can combine with the negatively charged part of the bacterial cell membrane to destroy the cell membrane structure and cause the contents to leak. In addition, chitosan may also enter the cell and interfere with the synthesis of DNA or protein. However, the antibacterial effect of chitosan is greatly affected by pH and is usually more effective under acidic conditions. Therefore, the positively charged quaternary ammonium groups are introduced, so that the modified chitosan can still maintain strong positive charge in a neutral or weakly alkaline environment. The positively charged groups are inserted into the cell membrane, resulting in disordered membrane lipid bilayer structure, increased permeability, and intracellular ions (K+, Ca+, etc.) 2 +, etc.) and contents (proteins, nucleic acids) leak out, causing cell death. In addition, the positively charged surface inhibits the adhesion of bacteria on the surface of the material, reduces the formation of biofilm, and assists other antibacterial ingredients to enter the interior of the bacteria, thereby improving the overall antibacterial efficiency.

[0012] Preferably, the concentration of the dilute acetic acid solution is 1% to 2%, and the mass ratio of the chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone and the dilute acetic acid solution is 1:0.5:2:10 to 1:2:3:20.

[0013] Preferably, the preparation method of the mugwort extract comprises the following steps: taking mugwort, crushing, sieving through 24-40 mesh, mixing mugwort and 70%-80% ethanol in a mass ratio of 1:8-12, heating at 75°C-85°C, reflux extraction 2-3 times, each time for 1-2 hours, mixing each extract to obtain the final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract, vacuum drying or freeze-drying to obtain the final mugwort extract powder.

[0014] The volatile oil components such as eucalyptol and camphor in the wormwood leaf extract of the present invention are highly fat-soluble and can penetrate bacterial cell membranes, especially the peptidoglycan layer of gram-positive bacteria and the chitin layer of fungal cell walls such as Candida albicans, resulting in membrane structure damage, leakage of contents (such as K+, protein, nucleic acid), and inducing cell death. The terpenes (such as wormwood leaf) in the wormwood leaf can inhibit the activities of key enzymes such as ATPase and succinate dehydrogenase (SDH) of bacteria, and block ATP synthesis and respiratory chain electron transfer. The wormwood leaf extract synergizes with other components to destroy the cell membrane, so that nano silver ions (Ag+) can more easily enter the interior of the bacteria and interfere with DNA replication. The positive charge of quaternized chitosan adsorbs bacteria, the penetration of wormwood leaf volatile oil is enhanced, and double membrane damage is formed. The catechins of tea polyphenols and wormwood leaf flavonoids jointly inhibit enzyme activity, amplify the anti-oxidative stress effect, further enhance the antibacterial effect of the product, and take into account safety and environmental protection.

[0015] Preferably, the concentration is carried out under the conditions of -0.04 to -0.09 MPa vacuum and 60 to 80°C temperature; the concentration is carried out until the relative density of the final extract is 0.65±0.02; and the pore size of the filter is 1 to 3 μm.

[0016] Preferably, the nano-silver composite is a composite of ammonium persulfate and nano-silver ions, and the mass ratio of the ammonium persulfate to the nano-silver ions is 1:0.3-0.6.

[0017] Preferably, the wet strength agent is polyamide polyamine epichlorohydrin, the dispersant is sodium carboxymethyl cellulose, and the softener is polyoxyethylene ether.

[0018] The invention discloses a method for preparing antibacterial toilet paper, which is characterized by comprising the following steps:

[0019] S1: beating the virgin wood pulp and the bamboo pulp respectively, mixing and stirring to form a pulp suspension with a concentration of 5% to 8%;

[0020] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0021] S3: adding dispersant, softener and wet strength agent to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0022] S4: The mixed liquid B is formed, dried, calendered, scraped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper.

[0023] Preferably, the beating degree is 30°SR~45°SR.

[0024] Preferably, the drying temperature is 100° C. to 120° C., the drying time is 5 to 10 min, and the calendering pressure is 50 to 100 kN / m.

[0025] The invention discloses an antibacterial toilet paper and a preparation method thereof, which have the following technical effects: the invention adopts a natural antibacterial agent and a nano-silver complex to act together, and the antibacterial rate of common pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, Candida albicans, etc. is ≥99%, and the antibacterial effect is long-lasting, which effectively guarantees the health of users; and the natural antibacterial agent used in the application has no toxic side effects on the human body, and the whole production process and the product after use have little pollution, which conforms to the concept of green environmental protection; the preparation method has a simple process, does not require special equipment, and only needs to carry out appropriate technical transformation of the existing toilet paper production line to realize industrial large-scale production; this not only reduces the production cost, but also improves the production efficiency, and provides a strong guarantee for the market promotion of the product. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with specific implementation methods.

[0028] Embodiment 1:

[0029] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 20% of bamboo pulp, 10% of quaternized chitosan, 5% of tea polyphenols, 5% of nano silver complex, 2% of aloesin, 2% of wormwood leaf extract, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0030] The preparation method of quaternized chitosan comprises the following steps:

[0031] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0032] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0033] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0034] The method for preparing the antibacterial toilet paper comprises the following steps:

[0035] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0036] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0037] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0038] S4: Form, dry, calender, wrinkle with a doctor blade, and wind into a roll the mixture B on a paper machine to obtain the antibacterial toilet paper. The drying temperature is 110 °C and the drying time is 8 min; the calendering pressure is 80 kN / m.

[0039] Example 2:

[0040] An antibacterial toilet paper, comprising the following components in mass percentage: 20% of virgin wood pulp, 50% of bamboo pulp, 10% of quaternized chitosan, 5% of tea polyphenols, 5% of nano silver complex, 2% of aloin, 2% of Artemisia argyi extract, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether, and 0.5% of polyamide polyamine epichlorohydrin.

[0041] The preparation method of quaternized chitosan comprises the following steps:

[0042] Dissolve chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyl trimethyl ammonium chloride in a dilute acetic acid solution, react at 65 °C for 7 hours, then add acetone, fully stir at room temperature for 12.5 h, and then cool, filter, wash, purify, and dry to obtain the solid product quaternized chitosan. The concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0043] The preparation method of Artemisia argyi extract comprises the following steps: Take Artemisia argyi, crush it, sieve it through 30 meshes, mix Artemisia argyi and ethanol with a concentration of 70% in a mass ratio of 1:10, heat to 80 °C, reflux and extract 3 times, 2 h each time, mix the extraction solutions each time to obtain the final extraction solution, filter, recover ethanol from the filtrate with a rotary evaporator, concentrate to an extract state under the conditions of a vacuum degree of -0.06 Mpa and a temperature of 70 °C, and perform vacuum drying or freeze drying to obtain the final Artemisia argyi extract powder. Concentrate to a relative density of 0.66 of the final extraction solution, and the filter aperture is 2 μm.

[0044] The nano silver complex is a complex of ammonium persulfate and nano silver ions, and the mass ratio of ammonium persulfate to nano silver ions is 1:0.4.

[0045] The preparation method of the above antibacterial toilet paper comprises the following steps:

[0046] S1: Beat the virgin wood pulp and bamboo pulp separately, stir the beating degrees of 40 °SR, and form a pulp suspension with a concentration of 8%;

[0047] S2: Crush quaternized chitosan, tea polyphenols, nano silver complex, aloin, and Artemisia argyi extract powder separately through a crusher, and then add them to the pulp suspension in sequence, and mix and stir to obtain the mixture A;

[0048] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0049] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0050] Embodiment 3:

[0051] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 30% of bamboo pulp, 5% of tea polyphenols, 5% of nano silver complex, 2% of aloesin, 2% of wormwood leaf extract, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0052] The preparation method of quaternized chitosan comprises the following steps:

[0053] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0054] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0055] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0056] The method for preparing the antibacterial toilet paper comprises the following steps:

[0057] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0058] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0059] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0060] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0061] Embodiment 4:

[0062] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 25% of bamboo pulp, 10% of quaternized chitosan, 5% of nano-silver compound, 2% of aloesin, 2% of wormwood leaf extract, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0063] The preparation method of quaternized chitosan comprises the following steps:

[0064] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0065] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0066] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0067] The method for preparing the antibacterial toilet paper comprises the following steps:

[0068] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0069] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0070] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0071] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0072] Embodiment 5:

[0073] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 25% of bamboo pulp, 10% of quaternized chitosan, 5% of tea polyphenols, 2% of aloesin, 2% of wormwood leaf extract, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0074] The preparation method of quaternized chitosan comprises the following steps:

[0075] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0076] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0077] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0078] The method for preparing the antibacterial toilet paper comprises the following steps:

[0079] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0080] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0081] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0082] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0083] Embodiment 6:

[0084] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 22% of bamboo pulp, 10% of quaternized chitosan, 5% of tea polyphenols, 5% of nano silver complex, 2% of aloesin, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0085] The preparation method of quaternized chitosan comprises the following steps:

[0086] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0087] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0088] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0089] The method for preparing the antibacterial toilet paper comprises the following steps:

[0090] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0091] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0092] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0093] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0094] Embodiment 7:

[0095] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 34% of bamboo pulp, 10% of quaternized chitosan, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0096] The preparation method of quaternized chitosan comprises the following steps:

[0097] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0098] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0099] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0100] The method for preparing the antibacterial toilet paper comprises the following steps:

[0101] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0102] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0103] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0104] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0105] Embodiment 8:

[0106] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 39% of bamboo pulp, 5% of tea polyphenols, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0107] The preparation method of quaternized chitosan comprises the following steps:

[0108] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0109] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0110] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0111] The method for preparing the antibacterial toilet paper comprises the following steps:

[0112] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0113] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0114] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0115] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0116] Embodiment 9:

[0117] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 39% of bamboo pulp, 5% of nano silver compound, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0118] The preparation method of quaternized chitosan comprises the following steps:

[0119] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0120] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0121] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0122] The method for preparing the antibacterial toilet paper comprises the following steps:

[0123] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0124] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0125] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0126] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0127] Embodiment 10:

[0128] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 42% of bamboo pulp, 2% of wormwood leaf extract, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0129] The preparation method of quaternized chitosan comprises the following steps:

[0130] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0131] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0132] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0133] The method for preparing the antibacterial toilet paper comprises the following steps:

[0134] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0135] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0136] S3: adding sodium carboxymethyl cellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B;

[0137] S4: The mixed liquid B is formed, dried, calendered, scraper-creped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper. The drying temperature is 110° C., the drying time is 8 min, and the calendering pressure is 80 kN / m.

[0138] Embodiment 11:

[0139] The invention discloses an antibacterial toilet paper, which comprises the following components in percentage by mass: 50% of virgin wood pulp, 44% of bamboo pulp, 5% of sodium carboxymethyl cellulose, 0.5% of polyoxyethylene ether and 0.5% of polyamide polyamine epichlorohydrin.

[0140] The preparation method of quaternized chitosan comprises the following steps:

[0141] Chitosan with a deacetylation degree of 75% and a molecular weight of 200,000 Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 65° C. for 7 hours, then acetone is added, and the mixture is fully stirred at room temperature for 12.5 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan, wherein the concentration of the dilute acetic acid solution is 2%, and the mass ratio of chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone, and the dilute acetic acid solution is 1:0.5:2:10.

[0142] The preparation method of wormwood leaf extract comprises the following steps: taking wormwood leaf, crushing, sieving through 30 meshes, mixing wormwood leaf and ethanol with a concentration of 70% in a mass ratio of 1:10, heating to 80°C, reflux extraction 3 times, each time for 2 hours, mixing each extract to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating to an extract at a vacuum degree of -0.06Mpa and a temperature of 70°C, vacuum drying or freeze drying to obtain a final wormwood leaf extract powder, and concentrating to a final extract with a relative density of 0.66 and a filter pore size of 2μm.

[0143] The nano-silver complex is a complex of ammonium persulfate and nano-silver ions, and the mass ratio of ammonium persulfate to nano-silver ions is 1:0.4.

[0144] The method for preparing the antibacterial toilet paper comprises the following steps:

[0145] S1: beating the virgin wood pulp and bamboo pulp respectively, mixing and stirring at a beating degree of 40°SR to form a pulp suspension with a concentration of 8%;

[0146] S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A;

[0147] S3: Sequentially add sodium carboxymethylcellulose, polyoxyethylene ether, and polyamide polyamine epichlorohydrin into the above-mentioned mixed solution A, and mix and stir to obtain mixed solution B;

[0148] S4: Form, dry, calender, scrape and wrinkle, and wind into a roll the mixed solution B through a paper machine to obtain antibacterial toilet paper. The drying temperature is 110 °C, and the drying time is 8 min; the calendering pressure is 80 kN / m.

[0149] Test on the antibacterial effects of the antibacterial toilet paper of the present invention against Escherichia coli, Staphylococcus aureus, and Salmonella.

[0150] First, coat the culture medium plate with agar; then dilute the suspensions of the four test bacteria to 105 cfu / mL - 106 cfu / mL as the test bacteria suspensions; make the tested antibacterial toilet paper sample into a circular sample with a diameter of 50 mm. After disinfecting with 75% ethanol, place it flat in a sterilized and aseptic petri dish. Take 0.5 mL of the test bacteria suspension and evenly drop it in the center of the sample, keeping a distance of 5 mm between the bacterial drop and the edge of the sample. Place it in an incubator at ℃ and dry for about 45 min to prepare it as an antibacterial sample of the infected bacteria; place the antibacterial sample of the infected bacteria with the test bacteria suspension surface facing up and flat on the surface of the agar sterile plate; evenly cover the surface of the infected bacteria sample with the agar diluted to a semi-solid state, place it in an incubator at 36 ± 1 °C and culture for 24 h, and observe the antibacterial effect; in addition, dilute the test bacteria suspension to a concentration of 1×103 cfu / mL - 2×103 cfu / mL, take 0.5 mL of it and smear it evenly on ordinary toilet paper, and perform the same above-mentioned treatment as the antibacterial toilet paper sample of the test group. Then place them in the same plate, cover and culture them with the agar diluted to a semi-solid state as the positive control; at the same time, use the test bacteria suspension for viable count, and observe and count the control sample without the antibacterial agent. Repeat the above experiment 3 - 5 times in parallel and take the average value. The experimental results of the antibacterial rate are shown in Table 1:

[0151] Table 1 Antibacterial experiment results

[0152]

[0153] Among them, the antibacterial rate = [(average number of colonies in the control sample - average number of colonies in the test sample) / average number of colonies in the control sample] × 100%.

[0154] It can be seen from the results in Table 1 that the antibacterial toilet paper of the present invention has obvious antibacterial effects on Escherichia coli, Staphylococcus aureus and Salmonella, among which Example 1 has the highest antibacterial rate (≥99.5%) because it contains all antibacterial ingredients (quaternary ammonium chitosan, nano-silver complex, tea polyphenols, wormwood extract) and has a significant synergistic effect; when quaternary ammonium chitosan is lacking (such as Example 3), the antibacterial rate decreases; when the nano-silver complex is lacking (such as Example 5), the long-term antibacterial ability is reduced; tea polyphenols and wormwood extract, a natural antibacterial agent, have a more significant effect on Staphylococcus aureus.

[0155] The present invention adopts a double-shaft mixer during the beating and stirring process, wherein the two stirring shafts are arranged horizontally, and the blades on the two stirring shafts are arranged in a staggered manner to form a vortex during the stirring process, thereby further improving the mixing uniformity.

[0156] A crushing device and a screen device are arranged above the crushing chamber of the crusher of the present invention. The crushing device is arranged above the screen device. The crushing device includes a rotating shaft and a plurality of crushing blades. The plurality of crushing blades are arranged around the outer surface of the rotating shaft. The rotating shaft is driven to rotate by a motor, so that the crushing blades rotate at high speed to crush the raw materials. The aperture of the screen is 10 microns to 100 microns. The screen of appropriate size is selected according to the requirements for the size of raw material particles in the preparation process of antibacterial toilet paper. Larger particles that do not meet the size requirements will continue to be crushed on the screen until they reach a suitable particle size and pass through the screen, so as to be better mixed with the pulp suspension later.

[0157] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity or device including the element.

[0158] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0159] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An antibacterial toilet paper, characterized in that: The composition includes the following components by mass percentage: 20% to 50% of virgin wood pulp, 20% to 50% of bamboo pulp, 10% to 20% of quaternized chitosan, 5% to 10% of tea polyphenols, 1% to 5% of nano silver complex, 1% to 2% of aloesin, 1% to 2% of wormwood extract, 5% to 10% of dispersant, 0.5% to 2% of softener and 0.5% to 2% of wet strength agent.

2. The antibacterial toilet paper according to claim 1, characterized in that: The preparation method of the quaternized chitosan comprises the following steps: Chitosan with a deacetylation degree of ≥75% and a molecular weight of ≥200000Da and 3-chloro-2-hydroxypropyltrimethylammonium chloride are dissolved in a dilute acetic acid solution, reacted at 60°C to 70°C for 6 to 8 hours, then acetone is added, and the mixture is fully stirred at room temperature for 10 to 15 hours, and then fully cooled, filtered, washed, purified, and dried to obtain a solid product, quaternized chitosan.

3. The antibacterial toilet paper according to claim 2, characterized in that: The concentration of the dilute acetic acid solution is 1% to 2%, and the mass ratio of the chitosan, 3-chloro-2-hydroxypropyltrimethylammonium chloride, acetone and the dilute acetic acid solution is 1:0.5:2:10 to 1:2:3:

20.

4. The antibacterial toilet paper according to claim 1, characterized in that: The preparation method of the wormwood leaf extract comprises the following steps: taking wormwood leaves, crushing them, sieving them through 24-40 meshes, mixing the wormwood leaves and ethanol with a concentration of 70%-80% in a mass ratio of 1:8-12, heating them at 75°C-85°C, refluxing and extracting them 2-3 times, each time for 1-2 hours, mixing the extracts from each time to obtain a final extract, filtering, recovering ethanol from the filtrate through a rotary evaporator, concentrating it to an extract, vacuum drying or freeze drying it to obtain the final wormwood leaf extract powder.

5. The antibacterial toilet paper according to claim 4, characterized in that: The concentration is carried out under the conditions of -0.04 to -0.09 MPa vacuum and 60 to 80°C temperature; the final concentrated extract has a relative density of 0.65±0.02; and the filter pore size is 1 to 3 μm.

6. The antibacterial toilet paper according to claim 1, characterized in that: The nano silver compound is a compound of ammonium persulfate and nano silver ions, and the mass ratio of the ammonium persulfate to the nano silver ions is 1:0.3-0.

6.

7. The antibacterial toilet paper according to claim 1, characterized in that: The wet strength agent is polyamide polyamine epichlorohydrin, the dispersant is sodium carboxymethyl cellulose, and the softener is polyoxyethylene ether.

8. A method for preparing the antibacterial toilet paper according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: beating the virgin wood pulp and the bamboo pulp respectively, mixing and stirring to form a pulp suspension with a concentration of 5% to 8%; S2: crushing the quaternary ammonium chitosan, tea polyphenols, nano-silver complex, aloesin, and wormwood extract powders respectively by a crusher, and then adding the pulp suspension in sequence, mixing and stirring to obtain a mixed solution A; S3: adding dispersant, softener and wet strength agent to the mixed solution A in sequence, mixing and stirring to obtain a mixed solution B; S4: The mixed liquid B is formed, dried, calendered, scraped, and rolled into a roll by a paper machine to obtain antibacterial toilet paper.

9. The method for preparing an antibacterial toilet paper according to claim 8, characterized in that: The beating degree is 30°SR~45°SR.

10. The method for preparing an antibacterial toilet paper according to claim 8, characterized in that: The drying temperature is 100° C. to 120° C., the drying time is 5 to 10 minutes, and the calendering pressure is 50 to 100 kN / m.

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