Probiotic functional layer and sanitary napkin
By designing a probiotic functional layer in sanitary napkins, which is filled with probiotic powder in a sponge substrate cavity and sealed with a water-soluble membrane, the problem of limited probiotic addition in existing technologies is solved. This allows probiotics to directly contact the skin, enhances the inhibitory effect on harmful bacteria, and improves women's intimate health.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING BAIYA SANITARY PRODUCTS CO LTD
- Filing Date
- 2025-01-23
- Publication Date
- 2026-06-02
AI Technical Summary
The amount of probiotics added to existing sanitary napkins is limited, and the effect is not good when added to the surface layer or absorbent layer, so it cannot effectively improve the environment of women's private parts.
A probiotic functional layer is designed, which uses a sponge substrate to make a cavity filled with probiotic powder and sealed with a water-reactive membrane. When exposed to water, the probiotic powder is released under human pressure and comes into direct contact with the skin. Combined with a flow-guiding layer, the contact efficiency of the probiotics is improved.
It improves the efficiency of probiotics contact with the skin, enhances the inhibitory effect on harmful bacteria, and improves the health of the female private area environment.
Smart Images
Figure CN224307484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of women's products, specifically to a probiotic functional layer and a sanitary napkin. Background Technology
[0002] The traditional sanitary napkin structure consists of a top layer, an absorbent layer (with an absorbent chip inside), and a leak-proof layer, stacked from top to bottom.
[0003] With the advancement of modern technology in the study of probiotics for women, the applicant has begun to explore the application of probiotics in sanitary napkins, enabling them to exert their effects during use. Specifically, this could involve regulating the pH level of the female genital area through the metabolites of probiotics, or through friction and contact with human skin, allowing them to colonize the skin and compete with harmful bacteria, thus preventing their survival and reproduction.
[0004] Currently, the amount of probiotics added to sanitary napkins in existing technologies is limited, and the effects of the probiotics are also limited. Furthermore, current technological solutions mainly involve adding probiotics to the surface layer or the absorbent layer. Adding them to the surface layer typically involves spreading a liquid or powder mixture containing probiotics onto the surface layer through spraying, coating, or other methods. If probiotics are added to the surface layer, the amount added needs to be limited to avoid affecting the surface layer's basic absorbency function; conversely, if probiotics are added to the absorbent layer, their actual antibacterial effect is greatly reduced because the probiotics do not directly contact the skin.
[0005] Therefore, this application is hereby submitted. Utility Model Content
[0006] The purpose of this invention is to provide a probiotic functional layer and a sanitary napkin, aiming to improve at least one of the problems mentioned in the background art.
[0007] The embodiments of this utility model can be implemented as follows:
[0008] In a first aspect, this utility model provides a probiotic functional layer, including a sponge substrate. One side of the sponge substrate has multiple cavities, which are filled with probiotic powder. A water-resistant membrane is provided at the opening of the cavity to seal the probiotic powder inside the cavity.
[0009] In an alternative implementation, the diameter of each receiving cavity gradually increases from the bottom to the opening.
[0010] In an optional embodiment, the cavity is also filled with sponge particles.
[0011] In an optional implementation, multiple receiving cavities are arranged adjacent to each other, and the water-resistant membrane corresponding to each receiving cavity is connected to the water-resistant membrane corresponding to the adjacent receiving cavity to form a flow guiding surface.
[0012] In an optional embodiment, multiple receiving cavities are spaced apart, and a flow guiding layer is provided at the interval between adjacent receiving cavities on the surface of the sponge substrate. All the flow guiding layers and all the water-resistant membranes constitute a flow guiding surface.
[0013] Alternatively, multiple cavities may be spaced apart, with a continuous guide layer on the sponge substrate covering all water-sensitive membranes.
[0014] In an optional implementation, the flow guiding layer is a non-woven fabric.
[0015] In an optional embodiment, the water-sensitive membrane is a polyvinyl alcohol membrane.
[0016] Secondly, this utility model embodiment provides a probiotic functional layer, including a sponge substrate and a sheet-shaped probiotic pack. One side of the sponge substrate has multiple receiving cavities, and the sheet-shaped probiotic pack includes multiple sacs protruding to one side. Each sac is filled with probiotic powder, and each sac has an opening. A water-soluble membrane is provided at the opening of the sac to seal the probiotic powder in the sac.
[0017] The probiotic flakes are placed on the side of the sponge substrate with a receiving cavity, and multiple sacs are placed one-to-one in the receiving cavity.
[0018] In an optional embodiment, the probiotic sheet includes a flow-guiding substrate, and each sac and the connecting portion that enables the connection between adjacent sacs are formed of the flow-guiding substrate.
[0019] In an optional implementation, the flow-guiding substrate is a non-woven fabric.
[0020] In an optional embodiment, the water-sensitive membrane is a polyvinyl alcohol membrane.
[0021] In an optional embodiment, the pouch is also filled with sponge particles.
[0022] Secondly, this utility model embodiment provides a sanitary napkin, including a probiotic functional layer, an absorbent layer and a leak-proof layer provided in this utility model embodiment, arranged sequentially; the probiotic functional layer is arranged with the opening of the receiving cavity facing away from the leak-proof layer.
[0023] The beneficial effects of the probiotic functional layer, the probiotic functional layer, and the sanitary napkin provided in this embodiment of the invention include:
[0024] The probiotic functional layer provided in this embodiment of the invention, due to its special structural design, serves as the surface layer of a sanitary napkin. When the sanitary napkin is used, the membrane breaks down upon contact with water and menstrual blood. Under the pressure of the sponge substrate generated by human movement, the probiotic powder located in the containment cavity is released. After release, the probiotic powder can directly contact the human body, improving the vaginal environment, inhibiting the growth of harmful bacteria, and benefiting women's health. Compared to traditional probiotic surface layers, the probiotic functional layer provided by this invention can better improve the vaginal environment and inhibit the growth of harmful bacteria. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 A cross-sectional view of the probiotic functional layer provided in the first embodiment;
[0027] Figure 2 A cross-sectional view of the probiotic functional layer provided in the second embodiment;
[0028] Figure 3 A cross-sectional view of the probiotic functional layer provided in the third embodiment;
[0029] Figure 4 A cross-sectional view of the probiotic functional layer provided in the fourth embodiment;
[0030] Figure 5 This is a cross-sectional view of a sheet-like probiotic packet;
[0031] Figure 6 A cross-sectional view of the sanitary napkin provided by this utility model.
[0032] Icons: 100 - Sanitary napkin; 110 - Probiotic functional layer; 111 - Sponge substrate; 112 - Receptacle cavity; 113 - Probiotic powder; 114 - Sponge particles; 115 - Water-soluble membrane; 116 - Diversion layer; 120 - Probiotic sheet pack; 121 - Capsule; 122 - Diversion substrate; 130 - Absorbent layer; 140 - Leak-proof layer. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0039] First Embodiment
[0040] like Figure 1 As shown, this utility model embodiment provides a probiotic functional layer 110, including a sponge substrate 111. One side of the sponge substrate 111 has a plurality of receiving cavities 112. The receiving cavities 112 are filled with probiotic powder 113. A water-resistant membrane 115 is provided at the opening of the receiving cavity 112 to seal the probiotic powder 113 inside the receiving cavity 112.
[0041] The probiotic functional layer 110 provided in this embodiment of the invention uses a sponge as the substrate, which has excellent softness and high porosity and deforms under pressure. Probiotics are filled into the receiving cavity 112 of the sponge substrate 111 and sealed with a water-soluble membrane 115. When the probiotic functional layer 110 is used as the surface layer of a sanitary napkin, the water-soluble membrane 115 can be broken upon contact with menstrual blood. Under the squeezing force generated by human movement on the sponge substrate 111, the probiotic powder 113 located in the receiving cavity 112 is released. After the probiotic powder 113 is released, it can directly contact the human body to improve the vaginal environment, inhibit the growth of harmful bacteria, and benefit women's health.
[0042] In this embodiment, the receiving cavity 112 is formed by removing part of the structure from the sponge substrate 111, so the sidewall of the receiving cavity 112 is formed from the sponge substrate 111. When a sanitary napkin with the probiotic functional layer 110 as the surface layer is used, the membrane 115 gradually dissolves upon contact with water, and the probiotic receiving space can also contain menstrual blood. Furthermore, the menstrual blood in the probiotic receiving space can flow into the sponge substrate 111 through the sidewall and then penetrate downwards.
[0043] The material of the sponge substrate 111 can be nano sponge, and the main component can be melamine resin foam.
[0044] Optionally, in order to avoid the poor softness caused by the high density of the probiotic powder 113 filling the cavity 112, resulting in reduced user comfort, in addition to filling the cavity 113 with probiotic powder 113, the cavity 112 can also be filled with sponge particles 114, that is, the probiotic powder 113 and sponge particles 114 are mixed and filled into the cavity 112.
[0045] Optionally, to facilitate the full discharge of probiotic powder 113 from the receiving cavity 112, the diameter of each receiving cavity 112 gradually increases from the bottom to the opening. Optionally, the shape of each receiving cavity 112 is an inverted triangle, an inverted trapezoid, or a semicircle.
[0046] Optionally, in this embodiment, to ensure a better flow guiding effect, multiple receiving cavities 112 are arranged in close succession, and the water-resistant membrane 115 corresponding to each receiving cavity 112 is connected to the water-resistant membrane 115 corresponding to the adjacent receiving cavity 112 to form a flow guiding surface.
[0047] Optionally, the water-repellent membrane 115 is a polyvinyl alcohol (PVA) membrane, which dissolves in water at temperatures close to those near human body temperature. It should be noted that in other embodiments of this invention, the water-repellent membrane 115 can also be a film made of other materials, as long as it possesses the function of being water-repellent.
[0048] Second Embodiment
[0049] This embodiment is basically the same as the first embodiment, and the differences are as described in the first embodiment.
[0050] like Figure 2 As shown, in this embodiment, multiple receiving cavities 112 are spaced apart, and a flow guiding layer 116 is provided at the interval between adjacent receiving cavities 112 on the surface of the sponge substrate 111. All the flow guiding layers 116 and all the water-resistant membranes 115 constitute a flow guiding surface.
[0051] The flowability of the sponge is slightly poor. When multiple receiving cavities 112 are arranged at intervals, the sponge substrate 111 between adjacent receiving cavities 112 is directly exposed on the surface. If the flow-guiding layer 116 is not provided, menstrual blood may only seep in from the receiving cavity 112. Therefore, in order to improve the flowability, the flow-guiding layer 116 is provided on these exposed sponges to improve the flowability of the sanitary napkin.
[0052] Optionally, the flow guide layer 116 is made of non-woven fabric.
[0053] Third Embodiment
[0054] This embodiment is basically the same as the second embodiment, and the differences are as described in the first embodiment.
[0055] like Figure 3 As shown, in this embodiment, multiple receiving cavities 112 are spaced apart, and a continuous guide layer 116 covering all water-resistant membranes 115 is provided on the sponge substrate 111.
[0056] Fourth embodiment
[0057] like Figure 4 As shown, the probiotic functional layer 110 provided in this embodiment includes a sponge substrate 111 and a sheet-shaped probiotic pack 120. One side of the sponge substrate 111 has a plurality of receiving cavities 112. The sheet-shaped probiotic pack 120 includes a plurality of sacs 121 protruding to one side. Each sac 121 is filled with probiotic powder 113. Each sac 121 has an opening. A water-repellent membrane 115 is provided at the opening of the sac 121 to seal the probiotic powder 113 in the sac 121.
[0058] The probiotic flakes 120 are disposed on the side of the sponge substrate 111 that has a receiving cavity 112, and multiple capsules 121 are disposed one-to-one in the multiple receiving cavities 112.
[0059] The probiotic functional layer 110 provided in this embodiment has probiotic powder 113 disposed in the capsule 121 of the probiotic pack. This structure allows the sponge substrate 111 and the sheet probiotic pack 120 to be produced separately during the production of the probiotic functional layer 110, and then the two are combined, which has better production convenience.
[0060] Preferably, the probiotic tablet 120 includes a flow-guiding substrate 122, and each capsule 121 and the connecting portion that connects adjacent capsules 121 are formed of the flow-guiding substrate 122.
[0061] When each capsule 121 and the connecting part that connects adjacent capsules 121 are formed by the flow-guiding substrate 122, the sheet-like probiotic pack 120 has better flowability. When the probiotic functional layer 110 is used as the surface layer, after the surface layer comes into contact with menstrual blood, some of the menstrual blood can directly penetrate into the sponge substrate 111 through the connecting part between adjacent capsules 121, and some of the menstrual blood can penetrate into the supporting sponge through the capsule 121 by dissolving the water-repellent membrane 115.
[0062] Preferably, the flow-guiding substrate 122 is a nonwoven fabric. Nonwoven fabrics have excellent flow-guiding properties. Preferably, the nonwoven fabric has a low fiber density, a loose fiber arrangement, or is manufactured by directional arrangement through specific nonwoven processes (such as hydroentangling, air-laid web formation, etc.).
[0063] In summary, the probiotic functional layer 110 provided in this embodiment of the present invention, due to its special structural design, serves as the surface layer of the sanitary napkin 100. When the sanitary napkin 100 is used, the membrane 115 breaks down upon contact with water and menstrual blood. Under the squeezing force generated by human movement on the sponge substrate 111, the probiotic powder 113 located in the receiving cavity 112 is released. After the probiotic powder 113 is released, it can improve the vaginal environment, inhibit the growth of harmful bacteria, and benefit women's health.
[0064] like Figure 5 As shown, this embodiment of the present invention also provides a sanitary napkin 100, including a probiotic functional layer 110, an absorbent layer 130 and a leak-proof layer 140 provided in various embodiments of the present invention, arranged in sequence; the probiotic functional layer 110 is arranged in a direction opposite to the leak-proof layer 140 with the opening of the receiving cavity 112 facing away from the leak-proof layer 140.
[0065] The sanitary napkin 100 provided in this embodiment uses a probiotic functional layer 110 as the surface layer, which can effectively improve the vaginal environment during menstruation.
[0066] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A probiotic functional layer, characterized in that, The invention includes a sponge substrate, one side of which has multiple receiving cavities. The receiving cavities are filled with probiotic powder, and the opening of each receiving cavity is provided with a water-resistant membrane to seal the probiotic powder inside the receiving cavity.
2. The probiotic functional layer according to claim 1, characterized in that, Each of the accommodating cavities gradually increases in diameter from the bottom to the opening.
3. The probiotic functional layer according to claim 1, characterized in that, The cavity is also filled with sponge particles.
4. The probiotic functional layer according to claim 1, characterized in that, The plurality of accommodating cavities are arranged in close succession, and the water-resistant membrane corresponding to each accommodating cavity is connected to the water-resistant membrane corresponding to the adjacent accommodating cavity to form a flow guiding surface.
5. The probiotic functional layer according to claim 1, characterized in that, The plurality of accommodating cavities are spaced apart, and a flow guiding layer is provided at the interval between adjacent accommodating cavities on the surface of the sponge substrate. All of the flow guiding layers and all of the water-resistant membranes constitute a flow guiding surface. Alternatively, the plurality of accommodating cavities are spaced apart, and a continuous flow-guiding layer covering all of the water-resistant membranes is provided on the sponge substrate.
6. The probiotic functional layer according to claim 5 or the above, characterized in that, The flow guiding layer is made of non-woven fabric; And / or, the water-resistant membrane is a polyvinyl alcohol membrane.
7. A probiotic functional layer, characterized in that, The invention includes a sponge substrate and a sheet-shaped probiotic pack. One side of the sponge substrate has multiple receiving cavities. The sheet-shaped probiotic pack includes multiple sacs protruding to one side. Each sac is filled with probiotic powder. Each sac has an opening. A water-soluble membrane is provided at the opening of the sac to seal the probiotic powder in the sac. The sheet-shaped probiotic pack is disposed on the side of the sponge substrate with a receiving cavity, and the plurality of pouches are disposed one-to-one within the plurality of receiving cavities.
8. The probiotic functional layer according to claim 7, characterized in that, The probiotic sheet includes a flow-guiding substrate, and each of the capsules and the connecting portion that enables the connection between adjacent capsules are formed from the flow-guiding substrate.
9. The probiotic functional layer according to claim 8, characterized in that, The flow-guiding substrate is non-woven fabric; And / or, the water-sensitive membrane is a polyvinyl alcohol membrane; And / or, the sac is also filled with sponge particles.
10. A sanitary napkin, characterized in that, It includes a probiotic functional layer, an absorption layer, and a leak-proof layer as described in any one of claims 1 to 9, arranged sequentially; the probiotic functional layer is arranged in a direction opposite to the leak-proof layer according to the opening of the receiving cavity.