Probiotic non-woven fabric, and preparation method therefor and use thereof

Abstract

A probiotic non-woven fabric, which is formed by compounding a non-woven fabric with a probiotic microcapsule. The probiotic microcapsule consists of a core material and a wall material. The wall material is prepared from the following raw materials, in parts by weight: 8-12 parts of a polymer material; 5-10 parts of a freeze-drying protective agent; 1-3 parts of a modifier; and 80-90 parts of a solvent. The preparation steps for the modifier are as follows: S1, mixing polydimethylsiloxane with tetraethoxysilane at a weight ratio of (7.5-9.5):1, and then adding a dibutyltin dilaurate catalyst thereto to obtain a prepolymer; and mixing polyvinyl alcohol with water to obtain a polyvinyl alcohol solution with a mass fraction of 4-8%; and S2, mixing the prepolymer with the polyvinyl alcohol solution at a weight ratio of (0.1-0.2):1, and maintaining same at 75-85°C for 6-8 h to obtain the modifier. On the premise that no adhesive is used in the probiotic non-woven fabric, the probiotic microcapsule can be stably adhered to the non-woven fabric, and thus the probiotic non-woven fabric has good application quality.

Description

A probiotic non-woven fabric and its preparation method and application Technical Field

[0001] The present application relates to the technical field of non-woven fabrics, and more specifically, to a probiotic non-woven fabric and a preparation method and application thereof. Background Art

[0002] Non-woven fabrics, also known as non-woven fabrics, needle-punched cotton, and needle-punched non-woven fabrics, are moisture-resistant, breathable, flexible, lightweight, flame-retardant, non-toxic, odorless, inexpensive, and recyclable. They are used in various industries, such as sound insulation, heat insulation, electric heaters, masks, clothing, medical applications, and filling materials. Probiotic non-woven fabrics are a new type of eco-friendly fabric created by tightly combining active probiotics with cellulose fabric.

[0003] Probiotic microcapsules are commonly used in existing probiotic non-woven fabrics. By utilizing the microcapsule shell to protect the probiotics, they improve high-temperature resistance, extend the storage time of the probiotics, and exert a certain sustained-release effect. Furthermore, the use of probiotic microcapsules can also reduce the requirements for factors such as pH and high temperature during the production of probiotic non-woven fabrics. Overall, this results in better overall quality for probiotic non-woven fabrics. However, the adsorption between the probiotic microcapsules and the non-woven fabric is poor, making them easy to fall off, significantly reducing the stability of the probiotic non-woven fabric. Therefore, adhesives, such as polyacrylic acid adhesives, are often used to fix the probiotic microcapsules.

[0004] Regarding the above-mentioned related technologies, the inventors believe that although the use of adhesives can solve the problem of easy shedding of probiotic microcapsules, the use of adhesives will cause the softness and comfort of non-woven fabrics to be lost, thereby limiting the application effect of probiotic non-woven fabrics.

[0005] Therefore, it is urgent to propose a solution to solve the above technical problems.

[0006] Summary of the Invention

[0007] In order to enable probiotic microcapsules to be stably adhered to non-woven fabrics without using adhesives, thereby obtaining probiotic non-woven fabrics with better application quality, the present application provides a probiotic non-woven fabric and its preparation method and application.

[0008] In the first aspect, the present application provides a probiotic non-woven fabric, which adopts the following technical solution:

[0009] A probiotic non-woven fabric is obtained by compounding a non-woven fabric and probiotic microcapsules. The probiotic microcapsules are composed of a core material and a wall material. The wall material is made of the following raw materials in parts by weight:

[0010] 8-12 parts of polymer material;

[0011] 5-10 parts of freeze-drying protective agent;

[0012] 1-3 parts of modifier;

[0013] 80-90 parts of solvent;

[0014] The modifier is prepared by the following steps:

[0015] S1. Polydimethylsiloxane and ethyl orthosilicate are mixed in a weight ratio of (7.5-9.5):1, and then dibutyltin dilaurate is added as a catalyst to obtain a prepolymer; polyvinyl alcohol is mixed with water to obtain a polyvinyl alcohol solution with a mass fraction of 4-8%;

[0016] S2. The prepolymer in step S1 and the polyvinyl alcohol solution are mixed in a weight ratio of (0.1-0.2):1, and maintained at 75-85° C. for 6-8 hours to obtain a modifier.

[0017] By adopting the above technical solution, polydimethylsiloxane has excellent biocompatibility and mechanical properties, and can improve the overall structural stability of the wall material on the basis of protecting the biological activity of probiotics. However, the surface energy of polydimethylsiloxane is low, and it is difficult to be effectively utilized and stably present in the wall material in the preparation of probiotic microcapsules. By using polyvinyl alcohol in combination with ethyl orthosilicate under the action of a catalyst, a copolymer system can be formed with polydimethylsiloxane, and this copolymer system can form an interpenetrating network system with the polymer material, so that the obtained modifier can be efficiently utilized when applied to the wall material; at the same time, the formed wall material structure can penetrate deeply into the fabric fibers when in contact with the non-woven fabric, and form a strong bond with the fabric fibers, so that the probiotic microcapsules can be stably adhered to the non-woven fabric without the aid of an adhesive, so that a probiotic non-woven fabric with better application quality can be obtained.

[0018] Preferably, the raw materials of the wall material are further added with 0.2-0.8 parts by weight of a functional additive, the functional additive is composed of polymethacrylate-β-hydroxyethyl ester and bamboo fiber, and the weight ratio of polymethacrylate-β-hydroxyethyl ester to bamboo fiber is (2-5):1.

[0019] By adopting the above technical solution, polymethacrylate-β-hydroxyethyl has good biocompatibility, not only can form a relatively stable bond with the non-woven fabric, but also can help the stable release of the probiotic core material. At the same time, it can also enrich the interpenetrating network system in the wall material, so as to improve the adhesion performance of the probiotic microcapsules; bamboo fiber and non-woven fabric can form entanglement, which helps to improve the adhesion effect of probiotic microcapsules; and when polymethacrylate-β-hydroxyethyl and bamboo fiber are used in combination as functional additives, the two can bring excellent compound synergistic effects. Through polymethacrylate-β-hydroxyethyl, the interpenetrating network system exists in the pore structure of bamboo fiber. When the bamboo fiber and non-woven fabric are entangled, a tighter bond can be formed by the penetration effect, thereby significantly improving the adhesion ability and stability of the probiotic microcapsules on the non-woven fabric, and ultimately the application quality of the probiotic non-woven fabric is further improved.

[0020] Preferably, the weight ratio of the poly(β-hydroxyethyl methacrylate) to the bamboo fiber is 3.5:1.

[0021] By adopting the above technical solution, when the polymethacrylate-β-hydroxyethyl resin and bamboo fiber in the above weight ratio are used in combination, the compounding effect between them is relatively excellent and stable, and the coordination effect with the modifier is relatively prominent, thereby obtaining probiotic microcapsules with relatively excellent and stable adhesion ability, so that the application quality of the final probiotic non-woven fabric is also better.

[0022] Preferably, the core material is one or a combination of thermophilic Bacillus, Bacillus subtilis, Bacillus licheniformis, Lactobacillus bulgaricus, Lactobacillus acidophilus, Bifidobacterium lactis, lactic acid bacteria and bifid yeast.

[0023] By adopting the above technical solution, the above types of probiotics are all suitable for the preparation of probiotic microcapsules, and can stably exert their own effects after sustained release. Especially when used on non-woven fabrics, they can improve the balance of microecology and bring excellent anti-inflammatory and antibacterial effects. They can also be combined and selected according to different application environments, making the probiotic non-woven fabrics more abundant.

[0024] Preferably, the polymer material is one or a combination of gelatin, shellac, polyethylene, wax, starch, gum arabic and carboxymethyl cellulose.

[0025] By adopting the above technical scheme, the above types of polymer materials, when used as raw materials for wall materials, can fully combine with other component raw materials and play a stabilizing role, and have a good coating effect on the core material. In particular, they can all be applied to the excellent and stable performance of the improver, and finally obtain a probiotic non-woven fabric with excellent and stable quality.

[0026] Preferably, the material of the non-woven fabric is a woven fabric of any one or more of cotton fiber, wood pulp fiber, viscose fiber and linen fiber.

[0027] By adopting the above technical solution, the above-mentioned types of fibers as the material of the non-woven fabric can, on the one hand, form a better combination with the probiotic microcapsules; on the other hand, after the probiotics are released, they can show better affinity and adsorption with the probiotics, thereby enabling the probiotics to bring about better effects.

[0028] Preferably, the particle size of the probiotic microcapsules is 2-6 μm.

[0029] By adopting the above technical solution, when the wall material of the probiotic microcapsule fully reacts with and stably combines with the non-woven fabric, the probiotic microcapsules of the above particle size can be suitable for bearing the binding force, thereby ensuring the adhesion stability of the probiotic microcapsules, so that the probiotic non-woven fabric exhibits better application quality; if the particle size is too small, it will be difficult for the wall material to achieve better adhesion and bonding with the non-woven fabric; if the particle size is too large, it will make it difficult for the binding force between the wall material and the non-woven fabric to be stably carried.

[0030] In a second aspect, the present application provides a method for preparing a probiotic non-woven fabric, which adopts the following technical solution:

[0031] A method for preparing a probiotic non-woven fabric comprises the following steps:

[0032] (1) Preparation of probiotic microcapsules: preparing raw materials of polymer material, freeze-drying protective agent, modifier and solvent according to a ratio, mixing them, then adding core material and mixing them evenly, spraying them into calcium chloride solution through a microcapsule generator to form wet capsules; washing the wet capsules, and freeze-drying them to obtain probiotic microcapsules;

[0033] (2) The probiotic microcapsules obtained in step (1) are prepared into a padding solution, and then the non-woven fabric is subjected to padding finishing, and the probiotic non-woven fabric is obtained after drying.

[0034] By adopting the above technical solution, the above preparation method is simple to operate, and the padding method is more conducive to forming a firm bond between the probiotic microcapsules and the non-woven fabric, thereby obtaining a probiotic non-woven fabric with excellent and stable quality.

[0035] In a third aspect, the present application provides an application of a probiotic non-woven fabric, which adopts the following technical solution:

[0036] The invention discloses an application of a probiotic non-woven fabric, wherein the probiotic non-woven fabric is used for preparing sound insulation, heat insulation, electric heating sheets, masks, clothing, medical and filling materials.

[0037] By adopting the above technical solution, the probiotic non-woven fabrics obtained in this application can be used as the above materials and have a wide range of applications.

[0038] In summary, this application has the following beneficial effects:

[0039] 1. This application uses polyvinyl alcohol in combination with ethyl orthosilicate under the action of a catalyst to form a copolymer system with polydimethylsiloxane. This copolymer system can form an interpenetrating network system with the polymer material, thereby achieving a good adhesion effect between the wall material structure of the probiotic microcapsule and the non-woven fabric. In this way, the probiotic microcapsules can be stably adhered to the non-woven fabric without the aid of an adhesive, thereby obtaining a probiotic non-woven fabric with better application quality;

[0040] 2. This application uses a functional additive composed of polymethacrylate-β-hydroxyethyl ester and bamboo fiber, which can significantly improve the adhesion and stability of probiotic microcapsules on non-woven fabrics, and ultimately further improve the application quality of the probiotic non-woven fabric. DETAILED DESCRIPTION

[0041] The present application is further described in detail below with reference to the embodiments.

[0042] Unless otherwise specified, the raw materials used in the preparation examples, embodiments and comparative examples of this application are commercially available:

[0043] The lyoprotectant was pharmaceutical grade trehalose dihydrate purchased from Xi'an Jinxiang Pharmaceutical Excipients Co., Ltd.

[0044] Polydimethylsiloxane was purchased from Hubei Longsheng Sihai New Materials Co., Ltd., model PXM-200;

[0045] Polyvinyl alcohol was purchased from Hubei Xinyuhong, CAS number 9002-89-5, product number P21501218;

[0046] The average molecular weight of poly(β-hydroxyethyl methacrylate) is 5000;

[0047] The diameter of bamboo fiber is 15 μm and the length is 1.5 mm.

[0048] Preparation examples of raw materials and / or intermediates

[0049] Preparation Example 1

[0050] A modifier is prepared by the following steps:

[0051] S1. Polydimethylsiloxane and ethyl orthosilicate are mixed in a weight ratio of 8.5:1, and then dibutyltin dilaurate is added as a catalyst to obtain a prepolymer; polyvinyl alcohol is mixed with water to obtain a polyvinyl alcohol solution with a mass fraction of 6%;

[0052] S2. The prepolymer in step S1 and the polyvinyl alcohol solution are mixed at a weight ratio of 0.15:1, and maintained at 80° C. for 7 hours to obtain a modifier.

[0053] Note: In step S1, the amount of dibutyltin dilaurate catalyst added is 0.1% of the total mass of the mixture of polydimethylsiloxane and tetraethyl orthosilicate.

[0054] Preparation Example 2

[0055] A modifier, which is different from Preparation Example 1 in that it is prepared by the following steps:

[0056] S1. Polydimethylsiloxane and ethyl orthosilicate are mixed in a weight ratio of 7.5:1, and then dibutyltin dilaurate is added as a catalyst to obtain a prepolymer; polyvinyl alcohol is mixed with water to obtain a polyvinyl alcohol solution with a mass fraction of 4%;

[0057] S2. The prepolymer in step S1 and the polyvinyl alcohol solution are mixed at a weight ratio of 0.1:1, and maintained at 75° C. for 6 hours to obtain a modifier.

[0058] Preparation Example 3

[0059] A modifier, which is different from Preparation Example 1 in that it is prepared by the following steps:

[0060] S1. Mixing polydimethylsiloxane and ethyl orthosilicate in a weight ratio of 9.5:1, and then adding dibutyltin dilaurate as a catalyst to obtain a prepolymer; mixing polyvinyl alcohol with water to obtain a polyvinyl alcohol solution with a mass fraction of 8%;

[0061] S2. The prepolymer in step S1 and the polyvinyl alcohol solution are mixed in a weight ratio of 0.2:1, and maintained at 85° C. for 8 hours to obtain a modifier.

[0062] Example

[0063] Example 1

[0064] A probiotic non-woven fabric is obtained by compounding a non-woven fabric and probiotic microcapsules. The probiotic microcapsules are composed of a core material and a wall material. The raw materials used for the wall material and their corresponding weights are shown in Table 1. The probiotic non-woven fabric is prepared by the following method:

[0065] (1) Preparation of probiotic microcapsules: Prepare raw materials of polymer material, freeze-drying protective agent, modifier and solvent according to the ratio, mix them, add core material and mix them evenly, and then spray them into a 4% calcium chloride solution through a microcapsule generator to form wet capsules; wash the wet capsules with physiological saline and deionized water in sequence, and freeze-dry them at -80°C for 30 hours to obtain probiotic microcapsules;

[0066] (2) The probiotic microcapsules obtained in step (1) are prepared into a padding solution, and then the non-woven fabric is subjected to double dipping and double padding finishing, with the dipping time being 1 hour, the dipping temperature being 40° C., and the padding rate being 80%. After drying, the probiotic non-woven fabric can be obtained.

[0067] Note: The padding liquid is an aqueous solution with a probiotic microcapsule content of 5%; the modifier is obtained in Preparation Example 1; the particle size of the probiotic microcapsule is 2-6 μm, and the core-to-wall ratio is 1:4; the core material is a combination of Lactobacillus acidophilus and Bifidobacterium lactis, and the bacterial content ratio of Lactobacillus acidophilus to Bifidobacterium lactis is 3:2; the polymer material is a combination of gum arabic and carboxymethyl cellulose, and the weight ratio of gum arabic to carboxymethyl cellulose is 8:1; the material of the non-woven fabric is cotton fiber, with a specification of 200 g / m 2 , thickness is 1mm; the solvent is water.

[0068] Example 2-3

[0069] A probiotic non-woven fabric is different from Example 1 in that the raw materials used for the wall material and their corresponding weights are shown in Table 1.

[0070] Table 1 Raw materials used for wall materials in Examples 1-3 and their weight parts (kg / part)

[0071] Example 4

[0072] A probiotic non-woven fabric, which is different from Example 1 in that the modifier is obtained in Preparation Example 2.

[0073] Example 5

[0074] A probiotic non-woven fabric, which is different from Example 1 in that the modifier is obtained in Preparation Example 3.

[0075] Example 6

[0076] A probiotic non-woven fabric is different from Example 1 in that the particle size of the probiotic microcapsules is 2 μm.

[0077] Example 7

[0078] A probiotic non-woven fabric is different from Example 1 in that the particle size of the probiotic microcapsules is 6 μm.

[0079] Example 8

[0080] A probiotic non-woven fabric is different from Example 1 in that the particle size of the probiotic microcapsules is 1.8 μm.

[0081] Example 9

[0082] A probiotic non-woven fabric is different from Example 1 in that the particle size of the probiotic microcapsules is 6.2 μm.

[0083] Example 10

[0084] A probiotic non-woven fabric is different from Example 1 in that 0.5 parts by weight of a functional additive is further added to the raw materials of the wall material, and the functional additive is composed of polymethacrylate-β-hydroxyethyl ester and bamboo fiber in a weight ratio of 3.5:1.

[0085] Example 11

[0086] A probiotic non-woven fabric is different from Example 10 in that the weight portion of the functional additive added is 0.2 parts.

[0087] Example 12

[0088] A probiotic non-woven fabric is different from Example 10 in that the weight portion of the functional additive added is 0.8 parts.

[0089] Example 13

[0090] A probiotic non-woven fabric, which is different from Example 10 in that the functional additive is composed of polymethacrylate-β-hydroxyethyl ester and bamboo fiber in a weight ratio of 2:1.

[0091] Example 14

[0092] A probiotic non-woven fabric, which is different from Example 10 in that the functional additive is composed of polymethacrylate-β-hydroxyethyl ester and bamboo fiber in a weight ratio of 5:1.

[0093] Example 15

[0094] A probiotic non-woven fabric is different from Example 10 in that poly(β-hydroxyethyl methacrylate) is not used in the raw materials of the wall material.

[0095] Example 16

[0096] A probiotic non-woven fabric is different from Example 10 in that bamboo fiber is not used in the raw materials of the wall material.

[0097] Comparative Example

[0098] Comparative Example 1

[0099] A probiotic non-woven fabric is different from Example 1 in that no modifier is used in the raw materials of the wall material.

[0100] Comparative Example 2

[0101] A probiotic non-woven fabric, which is different from comparative example 1 in that a polyacrylic acid binder is added to the padding solution used in step (2), and the content of the polyacrylic acid binder is 20 g / L. The polyacrylic acid binder is purchased from Wuhan Smack Biotechnology Co., Ltd. and has a CAS number of 9003-01-4.

[0102] Performance testing

[0103] Test samples: The probiotic non-woven fabrics obtained in Examples 1-16 and Comparative Examples 1-2 were used as test samples 1-16 and control sample 2.

[0104] Test method: (1) Weight gain rate: weigh the non-woven fabric before padding treatment, record it as initial weight m1; weigh the final probiotic non-woven fabric product, record it as finished product weight m2; then calculate the weight gain rate, weight gain rate = (m2-m1) / m1, and record it in Table 2 below;

[0105] (2) Stability test: The probiotic non-woven fabric was washed with water. The washing method was based on ISO 3679 "Household Washing Test Standard". The 5A condition was selected for the test. The test water level was when the washing machine was empty, the bottom of the washing machine was 15 cm from the water surface, the washing time was 30 minutes, the spin drying time was 5 minutes, and the fabric was naturally dried. The washing temperature was 40°C. The weight of the non-woven fabric before washing was recorded as n1, and the weight of the non-woven fabric after washing was recorded as n2. The loss rate was calculated as loss rate = (n1-n2) / n1, and recorded in Table 2 below.

[0106] (3) Softness test: The softness of the non-woven fabric raw material was tested according to the standard GB / T 2986-2016 "Test method for softness of clothing fabrics", and the initial value was recorded. When the probiotic non-woven fabric was prepared by application, the final value was obtained by measuring the same method; then the softness reduction rate was calculated, softness reduction rate = (initial value - final value) / initial value, and recorded in Table 2 below.

[0107] Table 2 Test results of test samples 1-16 and control samples 1-2

[0108] In conjunction with Examples 1-5 and Comparative Example 1 and in conjunction with Table 2, it can be seen that the present application, by using a modifier in microcapsule wall material, can greatly improve the adsorption and binding ability between the pre-nonwoven fabric of probiotic microcapsules, and the probiotic non-woven fabric obtained is washed with water, and the probiotic microcapsules can also maintain better adsorption stability and are not easy to fall off. In conjunction with Comparative Example 2 and Table 2, it can be seen that compared with the probiotic non-woven fabric obtained by not using a modifier to obtain probiotic microcapsules and being fixed on a non-woven fabric by a polyacrylic acid adhesive, both can show similar probiotic microcapsule adhesion effects, and the effect brought by using the modifier is slightly better than that of the polyacrylic acid adhesive; but it can also be found that the use of polyacrylic acid adhesive can make the softness of the probiotic non-woven fabric poor, and the present application's modifier replaces the mode of polyacrylic acid adhesive, then it can be under the premise of ensuring that the probiotic microcapsules are stably adhered to the non-woven fabric, well overcome this defect, and the overall structure has a significant improvement effect.

[0109] Combining Example 1 and Examples 6-9 with Table 2, it can be seen that when the particle size of the probiotic microcapsules is 2-6 μm, it can ensure that the wall material of the probiotic microcapsules and the non-woven fabric fully interact and stably bond. When the particle size is lower or higher than the above range, the adhesion between the probiotic microcapsules and the non-woven fabric deteriorates, resulting in a decrease in the adsorption amount of the probiotic microcapsules, and the probiotic microcapsules are easily detached after the probiotic non-woven fabric is washed with water.

[0110] Combining Example 1 with Examples 10-14 and Table 2, it can be seen that adding a functional additive composed of polymethacrylate-β-hydroxyethyl ester and bamboo fiber to the wall material can further improve the adhesion of the probiotic microcapsule wall material to the non-woven fabric, thereby obtaining a probiotic non-woven fabric of higher quality. Combining Examples 15-16 with Table 2, it can be seen that the addition of polymethacrylate-β-hydroxyethyl ester or bamboo fiber alone has limited effect on the adhesion between the probiotic microcapsules and the non-woven fabric, far less than the excellent improvement brought about by the combination of the two. The combination of the two can bring about a compound synergistic effect.

[0111] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A probiotic non-woven fabric, characterized in that, It is obtained by compounding a non-woven fabric and probiotic microcapsules. The probiotic microcapsules are composed of a core material and a wall material. The wall material is made from raw materials comprising the following parts by weight: 8 - 12 parts of a polymer material; 5 - 10 parts of a freeze-drying protectant; 1 - 3 parts of a modifier; 80 - 90 parts of a solvent; The modifier is obtained through the following steps: S1. Mix polydimethylsiloxane and tetraethyl orthosilicate in a weight ratio of (7.5 - 9.5):1, and then add a dibutyltin dilaurate catalyst to obtain a prepolymer; mix polyvinyl alcohol and water to obtain a polyvinyl alcohol solution with a mass fraction of 4 - 8%; S2. Mix the prepolymer in step S1 and the polyvinyl alcohol solution in a weight ratio of (0.1 - 0.2):1, and keep it at 75 - 85 °C for 6 - 8 h to obtain the modifier.

2. The probiotic non-woven fabric according to claim 1, wherein: 0.2 - 0.8 parts by weight of a functional auxiliary agent is further added to the raw materials of the wall material. The functional auxiliary agent is composed of poly(β-hydroxyethyl methacrylate) and bamboo fiber, and the weight ratio of poly(β-hydroxyethyl methacrylate) to bamboo fiber is (2 - 5):

1.

3. The probiotic non-woven fabric according to claim 2, wherein: The weight ratio of poly(β-hydroxyethyl methacrylate) to bamboo fiber is 3.5:

1.

4. The probiotic non-woven fabric according to claim 1, wherein: The core material is a composition of one or more of Bacillus thermophilus, Bacillus subtilis, Bacillus licheniformis, Lactobacillus bulgaricus, Lactobacillus acidophilus, Bifidobacterium lactis, Lactobacillus, and Schizosaccharomyces pombe.

5. The probiotic non-woven fabric according to claim 1, wherein: The polymer material is a composition of one or more of gelatin, shellac, polyethylene, wax, starch, gum arabic, and carboxymethyl cellulose.

6. The probiotic non-woven fabric according to claim 1, wherein: The material of the non-woven fabric is a woven fabric of any one or more of cotton fiber, wood pulp fiber, viscose fiber, and linen fiber.

7. The probiotic non-woven fabric according to claim 1, wherein: The particle size of the probiotic microcapsules is 2 - 6 μm.

8. The preparation method of the probiotic non-woven fabric according to claim 1, characterized in that: It includes the following steps: (1) Preparation of probiotic microcapsules: Prepare raw materials of a polymer material, a freeze-drying protectant, a modifier, and a solvent according to the ratio for mixing, then add the core material and mix evenly, and spray it into a calcium chloride solution through a microcapsule generator to form wet capsules; After washing the wet capsules, perform freeze-drying to obtain probiotic microcapsules; (2) Configure the probiotic microcapsules obtained in step (1) into a padding liquor, then perform padding finishing on the non-woven fabric, and obtain the probiotic non-woven fabric after drying.

9. Use of the probiotic non-woven fabric according to claim 1, characterized in that: The probiotic non-woven fabric is used for preparing sound insulation, heat insulation, electric heating sheets, masks, clothing, medical, and filling materials.

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