Antibacterial and antiviral filling cotton and preparation method thereof

Abstract

The invention provides antibacterial and antiviral filling cotton and a preparation method thereof. The antibacterial and antiviral filling cotton comprises the following components in parts by weight: 70-80 parts of filling cotton, 10-20 parts of an antibacterial and antiviral agent, 3-5 parts of an accelerant and 2-6 parts of a softening agent, wherein the antibacterial and antiviral agent, the accelerant and the softening agent are loaded on the filling cotton. The antibacterial and antiviral filling cotton has good antibacterial, mildew-proof and antiviral effects, also has filling power, elasticity and strength of traditional filling cotton, does not generate components harmful to human bodies in the using process, and does not pollute the environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of antibacterial materials, and particularly relates to an antibacterial and antiviral filling cotton and a preparation method thereof. Background Art

[0002] The types of filling cotton are mainly divided into: PP cotton, pearl cotton, down cotton, silk-like cotton, spray-bonded cotton, soft cotton, etc., which are widely used in plush toys, fabric handicrafts, clothing and home soft furnishings. Due to the problems of traditional filling cotton such as easy bacterial growth, difficult cleaning, and lack of antibacterial properties, when people come into contact with the above toys or handicrafts, it will have a certain negative effect on the skin or physical health.

[0003] CN104963049A discloses a blended regenerated cotton fiber that can be used as a filling material and its preparation method. Through impregnation treatment, waste cotton fabrics are made into regenerated cotton fibers to enhance the fluffiness, elasticity, and strength of the cotton fibers, and then blended with polypropylene staple fibers modified with sunscreen and antistatic properties to obtain a filling material with good resilience, warmth retention, and breathability, but it does not have antibacterial and antiviral properties.

[0004] CN113862900A discloses a terahertz-polylactic acid ecological antibacterial and health-care functional textile filling cotton. This filling cotton has good antibacterial properties, skin-friendly properties, elasticity, and is comfortable to wear. At the same time, it has a certain mite-proof and mite-driving effect, good breathability, and excellent moisture absorption control ability; the present invention organically combines terahertz fibers and polylactic acid fibers, and has the advantages and effects of both terahertz and polylactic acid. However, its process cost is high, and the antibacterial and antiviral effects are not ideal.

[0005] Therefore, there is an urgent need to develop a filling cotton with low cost, good antibacterial and antiviral properties, and harmless to the human body during use to meet the application requirements. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an antibacterial and antiviral filling cotton and a preparation method thereof. The filling cotton has good antibacterial and antiviral effects, and also has the fluffiness, elasticity, and strength of traditional filling cotton, and no harmful components are generated to the human body during use, and it does not pollute the environment.

[0007] To achieve the purpose of this invention, the following technical solutions are adopted:

[0008] In the first aspect, the present invention provides an antibacterial and antiviral filling cotton. The components of the antibacterial and antiviral filling cotton include, by weight: 70 - 80 parts of filling cotton, 10 - 20 parts of antibacterial and antiviral agent loaded on the filling cotton, 3 - 5 parts of accelerator, and 2 - 6 parts of softener.

[0009] The antibacterial and antiviral filling cotton of the present invention has the advantages of low toxicity and broad antibacterial spectrum. It can destroy the activity of bacteria, molds or viruses, causing their death, thereby effectively inhibiting the reproduction and regeneration of bacteria, molds or viruses. In the present invention, an antibacterial and antiviral agent is combined with a promoter, which can generate hydroxyl free radicals and reactive oxygen ions, significantly enhancing the antibacterial, mildew-proof and antiviral properties of the filling cotton, and not affecting the fluffiness, elasticity and strength of the filling cotton. In addition, no harmful components to the human body are generated during use, and the environment is not polluted.

[0010] In the antibacterial and antiviral filling cotton of the present invention, the dosage of the filling cotton can be 71 parts, 72 parts, 73 parts, 74 parts, 75 parts, 76 parts, 77 parts, 78 parts or 79 parts, etc.

[0011] The addition amount of the antibacterial and antiviral agent can be 11 parts, 22 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts or 19 parts, etc.

[0012] The addition amount of the promoter can be 3 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4.0 parts, 4.2 parts, 4.4 parts, 4.6 parts or 4.8 parts, etc.

[0013] The addition amount of the softener can be 2.5 parts, 3.0 parts, 3.5 parts, 4.0 parts, 4.5 parts, 5.0 parts or 5.5 parts, etc.

[0014] Preferably, the filling cotton is selected from any one or a combination of at least two of PP cotton, pearl cotton, down cotton, silk-like cotton, spray-bonded cotton or soft cotton.

[0015] Preferably, the antibacterial and antiviral agent includes any one or a combination of at least two of nano silver chloride, nano titanium dioxide, silver nitrate or methylene bisbiguanide organic salts;

[0016] Preferably, the antibacterial and antiviral agent includes a combination of nano silver chloride and nano titanium dioxide.

[0017] In the present invention, nano silver chloride and nano titanium dioxide are used as the antibacterial and antiviral agent, which has a dual antibacterial effect of both silver ion antibacterial and photocatalytic antibacterial. After being used in the filling cotton, it can better improve the antibacterial, mildew-proof and antiviral effects of the filling cotton.

[0018] Preferably, the mass ratio of the nano silver chloride to the nano titanium dioxide is 1:(1 - 2.5), for example, it can be 1:1.2, 1:1.3, 1:1.5, 1:1.7, 1:1.8, 1:2, 1:2.2, 1:2.3 or 1:2.4, etc.

[0019] Preferably, the promoter includes an organosilicon quaternary ammonium salt.

[0020] In the present invention, the promoter is an organosilicon quaternary ammonium salt. Taking organosilicon as a medium, it strongly adsorbs ammonium cation groups with bactericidal properties on the surface of bacteria, changes the permeability of the bacterial cell wall, causes enzymes, coenzymes, and metabolic intermediates in the bacteria to spill out, and makes the microorganisms stop breathing and die, thereby achieving the effects of sterilization, antibacterial, and antifungal.

[0021] Preferably, the organosilicon quaternary ammonium salt is any one or a combination of at least two of dimethyldodecyl [3-(trimethoxysilyl)propyl] ammonium chloride, dimethyldodecyl [3-(trimethoxysilyl)propyl] ammonium bromide, dimethyloctadecyl [3-(trimethoxysilyl)propyl] ammonium chloride, dimethyloctadecyl [3-(trimethoxysilyl)propyl] ammonium fluoride, or dimethyloctadecyl [3-(trimethoxysilyl)propyl] ammonium iodide.

[0022] Preferably, the organosilicon quaternary ammonium salt is dimethyldodecyl [3-(trimethoxysilyl)propyl] ammonium chloride.

[0023] The softener includes any one or a combination of at least two of a polyester-polyether-organosilicon multi-block copolymer with a guanidine group, a tertiary amine softener, and a quaternary ammonium salt softener.

[0024] Preferably, the softener is a quaternary ammonium salt softener.

[0025] Preferably, the quaternary ammonium salt softener includes an imidazoline quaternary ammonium salt softener and / or a dialkyldimethyl quaternary ammonium salt softener.

[0026] Preferably, the components of the antibacterial and antiviral stuffing cotton further include a dispersant.

[0027] Preferably, the dispersant accounts for 1-10% of the total amount of the antibacterial and antiviral stuffing cotton by mass percentage, and can be, for example, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, or 19%, etc.

[0028] Preferably, the dispersant includes any one or a combination of at least two of sodium carboxymethyl cellulose, acetic acid, acetylacetone, or polyacrylic acid.

[0029] Other specific point values within the above numerical ranges can all be selected, and will not be elaborated one by one here.

[0030] Second invention, the present invention provides a preparation method of the antibacterial and antiviral stuffing cotton as described in the first aspect, and the preparation method includes:

[0031] (1) Add the antibacterial and antiviral agent, the promoter, and the softener into water, and obtain an antibacterial and antiviral liquid after mixing evenly;

[0032] (2) Soak the stuffing cotton in the antibacterial and antiviral liquid, and obtain the antibacterial and antiviral stuffing cotton after drying.

[0033] Preferably, a dispersant is also added during the mixing in step (1).

[0034] Preferably, the mixing in step (1) is carried out under stirring conditions.

[0035] Preferably, the stirring time is 30 - 40 min, for example, it can be 31 min, 32 min, 33 min, 34 min, 35 min, 36 min, 37 min, 38 min or 39 min, etc.

[0036] Preferably, the stirring speed is 600 - 1200 r / min, for example, it can be 600 r / min, 700 r / min, 800 r / min, 900 r / min, 1000 r / min, 1100 r / min or 1200 r / min.

[0037] Preferably, the solid - liquid ratio of the antibacterial and antiviral agent to water is 3 - 12 g / L, for example, it can be 4 g / L, 5 g / L, 6 g / L, 7 g / L, 8 g / L, 9 g / L, 10 g / L or 11 g / L, etc.

[0038] Preferably, the soaking temperature in step (2) is 40 - 50 °C (for example, it can be 41 °C, 42 °C, 43 °C, 44 °C, 45 °C, 46 °C, 47 °C, 48 °C or 49 °C, etc.), and the time is 2 - 4 h (for example, it can be 2.2 h, 2.5 h, 2.8 h, 3 h, 3.2 h, 3.5 h or 3.8 h, etc.).

[0039] Preferably, the drying temperature is 70 - 80 °C (for example, it can be 71 °C, 72 °C, 73 °C, 74 °C, 75 °C, 76 °C, 77 °C, 78 °C or 79 °C, etc.), and the time is 30 - 60 min (for example, it can be 32 min, 35 min, 38 min, 40 min, 42 min, 45 min, 48 min, 50 min, 52 min, 55 min or 58 min, etc.).

[0040] Preferably, the stuffing cotton is elastically refined after drying to obtain the antibacterial and antiviral stuffing cotton.

[0041] Other specific point values within the above - mentioned numerical ranges can be selected, and will not be elaborated one by one here.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] (1) The present invention provides an antibacterial and antiviral stuffing cotton. Through the cooperation of an antibacterial and antiviral agent and a promoter, the antibacterial, mildew-proof and antiviral effects of the stuffing cotton are good. After testing, the antibacterial rate of the antibacterial and antiviral stuffing cotton against Staphylococcus aureus is higher than 99%, the antibacterial rate against Candida albicans is higher than 99%, the antiviral rate is higher than 99%, and the anti-mildew grade is 0 level;

[0044] (2) The present invention provides a preparation method of an antibacterial and antiviral stuffing cotton. The preparation method has a simple process, is easy to industrialize and mass-produce, and has high economic practicality. Specific embodiments

[0045] To further elaborate on the technical means and effects adopted by the present invention, the following further illustrates the technical solutions of the present invention in combination with the preferred embodiments of the present invention. However, the present invention is not limited to the scope of the embodiments.

[0046] In the embodiment of the present invention, the imidazoline quaternary ammonium salt softener is Evonik VARISOFT 3696; the sodium carboxymethyl cellulose is purchased from Baiyundu (Shanghai) Biotechnology Co., Ltd.; the dialkyl dimethyl quaternary ammonium salt softener is purchased from Shanghai Macklin Biochemical Co., Ltd.

[0047] The remaining raw materials can be used as long as they are purchased from regular distributors.

[0048] Example 1

[0049] This embodiment provides an antibacterial and antiviral stuffing cotton. The components of the antibacterial and antiviral stuffing cotton include 15 parts of PP cotton, 75 parts of an antibacterial and antiviral agent, 40 parts of dimethyldodecyl [3-(trimethoxysilyl)propyl] ammonium chloride, 35 parts of an imidazoline quaternary ammonium salt softener, and 5 parts of sodium carboxymethyl cellulose.

[0050] The antibacterial and antiviral agent is a combination of silver chloride nanoparticles and titanium dioxide nanoparticles with a mass ratio of 1:1.5.

[0051] The preparation method of the antibacterial and antiviral stuffing cotton includes the following steps:

[0052] (1) Under stirring conditions, add the antibacterial and antiviral agent, promoter, dispersant, and softener to water according to the formula amount and mix and stir. The solid-liquid ratio of the antibacterial and antiviral agent to water is 7 g / L. The stirring time is 35 min and the rotation speed is 900 r / min to obtain an antibacterial and antiviral liquid;

[0053] (2) Put the stuffing cotton into the antibacterial and antiviral liquid for soaking. The soaking temperature is 45 °C and the time is 3 h;

[0054] (3) Put the soaked stuffing cotton into an oven and dry it at 75 °C for 45 min. After fine elasticizing, the antibacterial and antiviral stuffing cotton is obtained.

[0055] Example 2

[0056] This example provides an antibacterial and antiviral stuffing cotton. The components of the antibacterial and antiviral stuffing cotton include 18 parts of down cotton, 73 parts of antibacterial and antiviral agent, 46 parts of organosilicon quaternary ammonium salt, 23 parts of imidazoline quaternary ammonium salt softener, and 8 parts of acetic acid.

[0057] The organosilicon quaternary ammonium salt is dimethyldodecyl [3-(trimethoxysilyl)propyl] ammonium chloride;

[0058] The antibacterial and antiviral agent is a combination of silver chloride nanoparticles and titanium dioxide nanoparticles with a mass ratio of 1:1.

[0059] The preparation method of the antibacterial and antiviral stuffing cotton includes the following steps:

[0060] (1) Under stirring conditions, add the antibacterial and antiviral agent, promoter, dispersant, and softener to water according to the formula amount and mix and stir. The solid-liquid ratio of the antibacterial and antiviral agent to water is 5 g / L, the stirring time is 32 min, and the rotation speed is 1100 r / min to obtain an antibacterial and antiviral liquid;

[0061] (2) Put the stuffing cotton into the antibacterial and antiviral liquid for soaking. The soaking temperature is 48 °C and the time is 2.5 h;

[0062] (3) Put the soaked stuffing cotton into an oven and dry it at 72 °C for 55 min, and obtain the antibacterial and antiviral stuffing cotton after fine elasticization.

[0063] Example 3

[0064] This example provides an antibacterial and antiviral stuffing cotton. The components of the antibacterial and antiviral stuffing cotton include 13 parts of spunlace cotton, 78 parts of antibacterial and antiviral agent, 35 parts of organosilicon quaternary ammonium salt, 50 parts of dialkyl dimethyl quaternary ammonium salt softener, and 3 parts of acetylacetone.

[0065] The organosilicon quaternary ammonium salt is dimethyldodecyl [3-(trimethoxysilyl)propyl] ammonium chloride;

[0066] The antibacterial and antiviral agent is a combination of silver chloride nanoparticles and titanium dioxide nanoparticles with a mass ratio of 1:2.2.

[0067] The preparation method of the antibacterial and antiviral stuffing cotton includes the following steps:

[0068] (1) Under stirring conditions, add the antibacterial and antiviral agent, promoter, dispersant, and softener to water according to the formula amount and mix and stir. The solid-liquid ratio of the antibacterial and antiviral agent to water is 10 g / L, the stirring time is 40 min, and the rotation speed is 800 r / min to obtain an antibacterial and antiviral liquid;

[0069] (2) Soak the stuffing cotton in the antibacterial and antiviral liquid. The temperature of the soaking is 43 °C and the time is 3.8 h;

[0070] (3) Put the soaked stuffing cotton into an oven and dry it at 78 °C for 40 min. After fluffing, the antibacterial and antiviral stuffing cotton is obtained.

[0071] Example 4

[0072] This example provides an antibacterial and antiviral stuffing cotton. The difference between this antibacterial and antiviral stuffing cotton and that of Example 1 is only that the antibacterial and antiviral agent is 75 parts of nano silver chloride, and the other components are the same as those in Example 1. The preparation method refers to Example 1.

[0073] Example 5

[0074] This example provides an antibacterial and antiviral stuffing cotton. The difference between this antibacterial and antiviral stuffing cotton and that of Example 1 is only that the antibacterial and antiviral agent is 75 parts of nano titanium dioxide, and the other components are the same as those in Example 1. The preparation method refers to Example 1.

[0075] Example 6

[0076] This example provides an antibacterial and antiviral stuffing cotton. The difference between this antibacterial and antiviral stuffing cotton and that of Example 1 is only that the antibacterial and antiviral agent is a combination of nano silver chloride and nano titanium dioxide with a mass ratio of 1:0.5, and the addition amount of the antibacterial and antiviral agent remains unchanged. The other components are the same as those in Example 1. The preparation method refers to Example 1.

[0077] Example 7

[0078] This example provides an antibacterial and antiviral stuffing cotton. The difference between this antibacterial and antiviral stuffing cotton and that of Example 1 is only that the antibacterial and antiviral agent is a combination of nano silver chloride and nano titanium dioxide with a mass ratio of 1:3.5, and the addition amount of the antibacterial and antiviral agent remains unchanged. The other components are the same as those in Example 1. The preparation method refers to Example 1.

[0079] Example 8

[0080] This example provides an antibacterial and antiviral stuffing cotton. The difference between this antibacterial and antiviral stuffing cotton and that of Example 1 is only that the organosilicon quaternary ammonium salt is dimethyloctadecyl [3-(trimethoxysilyl)propyl] ammonium chloride, and the addition amount of the organosilicon quaternary ammonium salt remains unchanged. The other components are the same as those in Example 1. The preparation method refers to Example 1.

[0081] Comparative Example 1

[0082] This comparative example provides an antibacterial and antiviral stuffing cotton. The difference between the antibacterial and antiviral stuffing cotton and that of Example 1 is only that it does not include the antibacterial and antiviral agent, and the reduced amount of the antibacterial and antiviral agent is increased to the promoter. The remaining components are the same as those in Example 1, and the preparation method refers to Example 1.

[0083] Comparative Example 2

[0084] This comparative example provides an antibacterial and antiviral stuffing cotton. The difference between the antibacterial and antiviral stuffing cotton and that of Example 1 is only that it does not include the promoter, and the reduced amount of the promoter is increased to the antibacterial and antiviral agent. The remaining components are the same as those in Example 1, and the preparation method refers to Example 1.

[0085] Test Example 1:

[0086] The antibacterial and antiviral stuffing cotton provided by Examples 1-8 and Comparative Examples 1-2 of the present invention was tested for antiviral activity, antibacterial rate and mildew-proof grade. The results are shown in Table 1.

[0087] Among them, the antibacterial rate was carried out according to GB / T 20944.3-2008; the mildew-proof test was carried out according to FZ / T 60030-2009, and the antiviral activity test was carried out according to the NASBA detection method in GB / T 19440-2004.

[0088] Table 1

[0089]

[0090] As can be seen from Table 1, in Examples 1-3, when the specific antibacterial and antiviral agent and the promoter were used in combination, the antibacterial rate of the obtained antibacterial and antiviral stuffing cotton against Staphylococcus aureus was higher than 99%, the antibacterial rate against Candida albicans was higher than 99%, the antiviral rate was higher than 99%, and the mildew-proof grade was 0 level, indicating that the stuffing cotton has good antibacterial, antiviral and mildew-proof properties; in Comparative Example 1 and Comparative Example 2, the antibacterial and antiviral agent and the promoter were not used in combination at the same time, and the antibacterial rate of the obtained antibacterial and antiviral stuffing cotton against Staphylococcus aureus was 50.6% or 50.0%, the antibacterial rate against Candida albicans was 45.6% or 51.2%, the antiviral activity rate was only 43.3% or 50.2%, and the mildew-proof grade was 3 level, indicating that the antibacterial rate and antiviral rate of the antibacterial and antiviral stuffing cotton were improved by the mutual cooperation of the antibacterial and antiviral agent and the promoter in the present invention.

[0091] Compared with Example 1, when the antibacterial and antiviral agents in Examples 4 - 5 are not the combination of nano - silver chloride and nano - titanium dioxide specifically selected in the present invention, and the promoter in Example 8 is not of the specific type in this application, the antibacterial rate and antiviral rate of the obtained antibacterial and antiviral filled cotton are both lower than those in Example 1, indicating that the types of antibacterial and antiviral agents and promoters in the present invention can affect the antibacterial rate, antiviral rate, and mildew - proof effect of the antibacterial and antiviral filled cotton.

[0092] Compared with Example 1, when the mass ratio of nano - silver chloride and nano - titanium dioxide in the antibacterial and antiviral agents in Examples 6 - 7 is not within the scope defined in this application, the antibacterial rate and antiviral rate of the obtained antibacterial and antiviral filled cotton also decrease compared with Example 1, indicating that when the dosage of either nano - silver chloride or nano - titanium dioxide is excessive in the present invention, it has a negative impact on the antibacterial rate, antiviral rate, and mildew - proof grade of the antibacterial and antiviral filled cotton.

[0093] In summary, by utilizing the synergistic effect of the antibacterial and antiviral agents and promoters and the limitation of the types of antibacterial and antiviral agents and promoters, the present invention significantly improves the antibacterial rate, antiviral rate, and mildew - proof grade of the antibacterial and antiviral filled cotton.

[0094] Test Example 2

[0095] The filled cotton obtained in Examples 1 - 3 was washed 10 times and then tested for antiviral activity, antibacterial rate, and mildew - proof grade according to the method of Test Example 1. The results are shown in Table 2.

[0096] Table 2

[0097]

[0098] As can be seen from Table 2, after the antibacterial and antiviral filled cotton of the present invention is washed 10 times, the antibacterial rate against Staphylococcus aureus is still higher than 99%, the antibacterial rate against Candida albicans is higher than 99%, the antiviral rate is higher than 99%, and the mildew - proof grade is 0 level, indicating that the antibacterial, mildew - proof, and antiviral effects of the filled cotton are more long - lasting.

[0099] The applicant declares that the present invention uses the above - mentioned examples to illustrate the antibacterial and antiviral filled cotton of the present invention and its preparation method, but the present invention is not limited to the above - mentioned examples, that is, it does not mean that the present invention must rely on the above - mentioned examples to be implemented. Those skilled in the art should understand that any improvement to the present invention, the equivalent replacement of each raw material of the product of the present invention, the addition of auxiliary components, and the selection of specific methods, etc., all fall within the protection scope and the public disclosure scope of the present invention.

[0100] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0101] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

Claims

1. An antibacterial and antiviral stuffing cotton, characterized in that, The components of the antibacterial and antiviral stuffing cotton include, by weight: 70 - 80 parts of stuffing cotton, 10 - 20 parts of antibacterial and antiviral agent loaded on the stuffing cotton, 3 - 5 parts of accelerator, and 2 - 6 parts of softener.

2. The antibacterial and antiviral stuffing cotton according to claim 1, characterized in that, The stuffing cotton is selected from any one or a combination of at least two of PP cotton, pearl cotton, down cotton, silk-like cotton, spray-bonded cotton, or soft cotton.

3. The antibacterial and antiviral stuffing cotton according to claim 1 or 2, characterized in that The antibacterial and antiviral agent includes any one or a combination of at least two of nano silver chloride, nano titanium dioxide, silver nitrate, or methylene bisbiguanide organic salts; Preferably, the antibacterial and antiviral agent includes a combination of nano silver chloride and nano titanium dioxide; Preferably, the mass ratio of nano silver chloride to nano titanium dioxide is 1:(1 - 2.5).

4. The antibacterial and antiviral stuffing cotton according to any one of claims 1-3, characterized in that, The accelerator includes organosilicon quaternary ammonium salt; Preferably, the organosilicon quaternary ammonium salt is any one or a combination of at least two of dimethyldodecyl[3-(trimethoxysilyl)propyl]ammonium chloride, dimethyldodecyl[3-(trimethoxysilyl)propyl]ammonium bromide, dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride, dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium fluoride, or dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium iodide; Preferably, the organosilicon quaternary ammonium salt is dimethyldodecyl[3-(trimethoxysilyl)propyl]ammonium chloride.

5. The antibacterial and antiviral stuffing cotton according to any one of claims 1-4, characterized in that, The softener includes any one or a combination of at least two of polyester-polyether-organosilicon multi-block copolymer with guanidine group, tertiary amine softener, and quaternary ammonium salt softener; Preferably, the softener is a quaternary ammonium salt softener; Preferably, the quaternary ammonium salt softener includes imidazoline quaternary ammonium salt softener and / or dialkyl dimethyl quaternary ammonium salt softener.

6. The antibacterial and antiviral stuffing cotton according to any one of claims 1-5, characterized in that, The components of the antibacterial and antiviral stuffing cotton further include a dispersant; Preferably, the dispersant is 1 - 10% of the total amount of the antibacterial and antiviral stuffing cotton by mass percentage; Preferably, the dispersant includes any one or a combination of at least two of sodium carboxymethyl cellulose, acetic acid, acetylacetone, or polyacrylic acid.

7. The preparation method of the antibacterial and antiviral stuffing cotton according to any one of claims 1-6, characterized in that, The preparation method includes: (1) Adding the antibacterial and antiviral agent, accelerator, and softener into water, and obtaining an antibacterial and antiviral liquid after mixing evenly; (2) Soaking the stuffing cotton in the antibacterial and antiviral liquid, and drying to obtain the antibacterial and antiviral stuffing cotton.

8. The preparation method of the antibacterial and antiviral stuffing cotton according to claim 7, characterized in that, Adding a dispersant is also included during the mixing in step (1); Preferably, the mixing in step (1) is carried out under stirring conditions; Preferably, the stirring time is 30 - 40 min; Preferably, the stirring speed is 600 - 1200 r / min; Preferably, the solid-liquid ratio of the antibacterial and antiviral agent to water is 3 - 12 g / L.

9. The preparation method of the antibacterial and antiviral stuffing cotton according to claim 7 or 8, characterized in that, The soaking temperature in step (2) is 40 - 50 °C, and the time is 2 - 4 h.

10. The preparation method of the antibacterial and antiviral stuffing cotton according to any one of claims 7-9, characterized in that, The drying temperature in step (2) is 70 - 80 °C, and the time is 30 - 60 min; preferably, the stuffing cotton is elastically refined after drying to obtain the antibacterial and antiviral stuffing cotton.

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