A sanitary napkin which can be used continuously
By designing sanitary napkins that can be used continuously, and utilizing an absorbent stacking structure and adhesive for fixation, the problem of frequent replacements is solved, achieving the effect of reducing the number of replacements and lowering costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN KAYSON HYGIENE PROD CO LTD
- Filing Date
- 2025-03-06
- Publication Date
- 2026-07-03
AI Technical Summary
Existing sanitary napkins require frequent changes, especially when menstrual flow is light, which leads to inconvenience and high cost.
Design a reusable sanitary napkin comprising at least two absorbent elements that are attached to the crotch area of underwear via an adhesive. The absorbent elements are stacked one on top of the other. After use, the soiled absorbent element is peeled off and the lower absorbent element is reused, reducing the frequency of replacement.
While ensuring personal hygiene, it reduces the frequency of sanitary napkin changes, lowers menstrual travel costs, reduces the amount of underwear to carry, and extends the lifespan of underwear.
Smart Images

Figure CN224441591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitary napkin technology, and in particular to a sanitary napkin that can be used continuously. Background Technology
[0002] The main function of sanitary napkins is to absorb menstrual blood during menstruation, preventing it from staining clothes and furniture and maintaining personal hygiene and comfort. To ensure cleanliness of the private parts, women need to change their sanitary napkins periodically during menstruation. When women go out during their period, they often need to carry multiple sanitary napkins, even when the menstrual flow is light, which is costly and inconvenient. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a sanitary napkin that can be used continuously.
[0004] The solution to the technical problem of this utility model is:
[0005] A reusable sanitary napkin, comprising:
[0006] The main body of the sanitary napkin includes at least two absorbent bodies, each absorbent body including a top layer and a leak-proof bottom film. The lower surface of the top layer in the same absorbent body is bonded to the upper surface of the leak-proof bottom film. The absorbent bodies are stacked one on top of the other, and the leak-proof bottom film of the upper absorbent body is pressed and connected to the top layer of the lower absorbent body.
[0007] An adhesive body that is bonded to the leak-proof bottom membrane of the absorbent body located at the lowest end.
[0008] This invention offers at least the following advantages: By using the reusable sanitary napkin of this embodiment, users can reduce the number of sanitary napkins they need to carry when traveling during menstruation. The reusable sanitary napkin is attached to the crotch area of underwear using an adhesive. After using one absorbent pad, the soiled pad can be peeled off, and the next absorbent pad can be reused. In the same amount of time, this reduces the frequency of sanitary napkin changes while ensuring the user's intimate hygiene. For users, one reusable sanitary napkin can replace multiple ordinary sanitary napkins, significantly reducing the number of sanitary napkins used during menstruation and thus reducing expenses related to sanitary napkins, especially lowering the cost of traveling during menstruation.
[0009] As a further improvement to the above technical solution, each absorber further includes a liquid storage layer, which is disposed between the surface layer and the leak-proof bottom membrane. The upper surface of the liquid storage layer is bonded to the surface layer, and the lower surface of the liquid storage layer is bonded to the leak-proof bottom membrane.
[0010] As a further improvement to the above technical solution, the liquid storage layer is provided with a plurality of guide channels, which are arranged to open upwards.
[0011] As a further improvement to the above technical solution, the upper surface of the sanitary napkin body is provided with a first embossing. The first embossing is recessed downward so that the multiple absorbents are pressed together. When the sanitary napkin body is rubbed, the absorbent on the upper side separates from the absorbent on the lower side.
[0012] As a further improvement to the above technical solution, the first embossing is provided along the edge of the sanitary napkin body.
[0013] As a further improvement to the above technical solution, the first embossing depth at the front and rear ends of the sanitary napkin body is less than the first embossing depth at the left and right ends of the sanitary napkin body.
[0014] As a further improvement to the above technical solution, the upper surface of the sanitary napkin body is provided with a second embossing, which is located in the middle of the sanitary napkin body and is recessed downwards.
[0015] As a further improvement to the above technical solution, the surface layer is made of a hydrophilic material.
[0016] As a further improvement to the above technical solution, the adhesive body is provided with side wings, which are located on the left and right sides of the adhesive body.
[0017] As a further improvement to the above technical solution, the sanitary napkin that can be used continuously also includes release paper, which is attached to the lower surface of the adhesive. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the internal structure of a sanitary napkin that can be used continuously according to an embodiment of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of a sanitary napkin that can be used continuously according to another embodiment of this utility model;
[0021] Figure 3 This is a top view of a sanitary napkin that can be used continuously according to an embodiment of this utility model;
[0022] Figure 4This is a top view of a sanitary napkin that can be used continuously, according to another embodiment of this utility model.
[0023] Reference numerals: 100, sanitary napkin body; 110, absorbent core; 111, top layer; 112, leak-proof bottom film; 113, liquid storage layer; 114, first embossing; 115, second embossing; 116, diversion channel; 200, adhesive; 210, side wing; 220, release paper. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0028] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. The various technical features of this utility model can be combined interactively without contradicting each other.
[0029] Reference Figures 1 to 4This utility model provides a sanitary napkin that can be used continuously, making it more convenient for users to carry when going out and reducing unnecessary embarrassment. Especially when menstrual flow is light, it can reduce the number of times sanitary napkins need to be changed and reduce the cost of women traveling during menstruation.
[0030] In this embodiment, the reusable sanitary napkin includes a sanitary napkin body 100 and an adhesive body 200. The sanitary napkin body 100 includes at least two absorbent elements 110, as shown in the figure. Figure 1 Taking a reusable sanitary napkin with two absorbent bodies 110 as an example, each absorbent body 110 includes a surface layer 111 and a leak-proof bottom film 112. The lower surface of the surface layer 111 in the same absorbent body 110 is bonded to the upper surface of the leak-proof bottom film 112. The absorbent bodies 110 are stacked one on top of the other, and the leak-proof bottom film 112 of the upper absorbent body 110 is pressed and connected to the surface layer 111 of the lower absorbent body 110. An adhesive 200 is disposed on the lower side of the sanitary napkin body 100 and is bonded to the leak-proof bottom surface of the lowest absorbent body 110.
[0031] Understandably, when using this product, the sanitary napkin is placed in the crotch area of the underwear, and the adhesive 200 secures the sanitary napkin body 100 to the crotch area of the underwear. During the user's activities, the sanitary napkin body 100 is less likely to shift and cause side leakage.
[0032] Understandably, the surface layer 111 has a certain absorbency. When the menstrual flow is light, the surface layer 111 can achieve good water-locking performance, preventing menstrual blood from leaking and staining underwear or outer pants. In some embodiments, the surface layer 111 is made of a hydrophilic material, such as non-woven fabric.
[0033] When using the sanitary napkin, first use the upper absorbent 110. The liquid is absorbed by the uppermost absorbent 110. Thanks to the leak-proof bottom membrane 112, liquid is prevented from flowing downwards into the lower absorbent 110. After a certain period of use, the user can peel off and discard the upper absorbent 110, exposing the next absorbent 110. The user can then continue using the reusable sanitary napkin, with the liquid absorbed by the currently uppermost absorbent 110. After another period of use, repeat the above steps until the last absorbent 110 is used up, at which point the entire reusable sanitary napkin is discarded.
[0034] This setup reduces the number of times sanitary napkins need to be changed within the same time frame, thereby reducing the amount of sanitary napkins to carry and lowering the cost of women traveling during their menstrual period.
[0035] It is understandable that when using the upper absorbent 110, since the lower absorbent 110 does not come into contact with the user's private parts, the lower absorbent 110 remains dry and clean, and will not cause harm to the user's health during subsequent use.
[0036] In some embodiments, refer to Figure 2 Each absorber 110 further includes a liquid storage layer 113 for storing menstrual blood and other liquids. The liquid storage layer 113 is disposed between the surface layer 111 and the leak-proof bottom membrane 112. The upper surface of the liquid storage layer 113 is bonded to the lower surface of the surface layer 111, and the lower surface of the liquid storage layer 113 is bonded to the leak-proof bottom membrane 112.
[0037] The absorbent 110, equipped with a liquid storage layer 113, can absorb more liquid and is suitable for users with slightly heavier menstrual flow.
[0038] In this embodiment, the surface layer 111, the liquid storage layer 113, and the leak-proof bottom film 112 located in the same absorber 110 are bonded and stabilized by hot melt adhesive.
[0039] In some embodiments, the liquid storage layer 113 is provided with a plurality of flow channels 116, which are arranged to open upwards. It is understood that the flow channels 116 can guide the liquid to flow to the middle and lower parts of the liquid storage layer 113, allowing the liquid to be absorbed by the middle and lower parts of the liquid storage layer 113, thereby better utilizing the absorption performance of the liquid storage layer 113 and improving the utilization rate of the liquid storage layer 113.
[0040] In some embodiments, refer to Figure 3 and Figure 4 The upper surface of the sanitary napkin body 100 is provided with a first embossing 114. The first embossing 114 is recessed downward from the upper surface of the surface layer 111 of the uppermost absorbent 110, which can press together multiple absorbents 110 stacked vertically. During use, the user's activities will not affect the connection between the multiple absorbents 110. When it is necessary to remove the absorbent 110 located on the top, the user can rub the sanitary napkin body 100 to separate the absorbent 110 located on the top side from the absorbent 110 located on the bottom side. After removing the absorbent 110 located on the top side, the sanitary napkin body 100 can continue to be used. The next absorbent 110 is in contact with the user's skin and can absorb liquid.
[0041] In this embodiment, the first embossing 114 is provided along the edge of the sanitary napkin body 100, which ensures that the edges of each absorbent 110 are firm, making the connection of each absorbent 110 of the sanitary napkin body 100 more stable, and further preventing the separation of each absorbent 110 caused by user activities.
[0042] Furthermore, in this embodiment, the depth of the first embossing 114 located at the front and rear ends of the sanitary napkin body 100 is less than the depth of the first embossing 114 located at the left and right ends of the sanitary napkin body 100. With this configuration, the depth of the first embossing 114 at the front and rear ends is less than the depth of the first embossing 114 at the left and right ends. When a pulling force is applied to the absorbent body 110 located above, the peeling force required at the left and right ends of the absorbent body 110 is greater than the peeling force required at the front and rear ends. During use, because the peeling force required at the front and rear ends is smaller, the user can easily separate the absorbent body 110 located above from the absorbent body 110 located below by gently rubbing the front and rear ends of the absorbent body 110. Furthermore, because the peeling force required at the left and right ends is larger, the user's movements are further prevented from affecting the connection between the absorbent bodies 110, thereby improving the connection stability between the absorbent bodies 110.
[0043] In some embodiments, the upper surface of the sanitary napkin body 100 is further provided with a second embossing 115. The second embossing 115 is disposed on the upper surface of the sanitary napkin body 100 and is recessed downward. It can be understood that the second embossing 115 is formed by pressing the uppermost absorbent body 110 surface layer 111 downward, which can further enhance the stability of the bonding between the various absorbent bodies 110 and reduce the thickness of the sanitary napkin body 100, making the sanitary napkin thinner and lighter overall for continued use.
[0044] It is understood that the shape and number of the second embossing 115 are not specifically limited here. In some embodiments, the second embossing 115 is in the shape of flowers and leaves, heart, etc., which can reduce the thickness of the sanitary napkin body 100 and strengthen the connection stability between the absorbent body 110, and also improve the user's pleasure and experience.
[0045] In some embodiments, the second embossing 115 located at the front and rear ends of the sanitary napkin body 100 is shallower than the second embossing 115 at other locations, which is more conducive to the peeling of the absorbent body 110.
[0046] In some embodiments, refer to Figure 4 The adhesive body 200 is provided with side wings 210, which are located on the left and right sides of the adhesive body 200. Specifically, the side wing 210 located on the left side of the adhesive body 200 extends to the left, and the side wing 210 located on the right side of the adhesive body 200 extends to the right.
[0047] During use, the user can fold the side wings 210 to the underside of the crotch area of the underwear, thereby enhancing the stability of the connection between the sanitary napkin and the underwear, and further preventing the sanitary napkin from shifting and causing side leakage.
[0048] In some embodiments, the reusable sanitary napkin further includes a release paper 220, which is attached to the lower surface of the adhesive 200. The release paper 220 protects the adhesive 200, preventing it from becoming contaminated and affecting its adhesive strength, and further preventing the sanitary napkin from shifting and causing side leakage. Before using the reusable sanitary napkin of this embodiment, the user simply peels off the release paper 220, and then attaches the adhesive 200 to the crotch area of the underwear, making it very convenient to use.
[0049] By using the reusable sanitary napkin of this embodiment, users can reduce the number of sanitary napkins they need to carry when traveling during menstruation. After using one absorbent pad 110, the soiled absorbent pad 110 can be peeled off, and the absorbent pad below can be reused. This reduces the frequency of sanitary napkin changes while ensuring the user's intimate hygiene. For users, one reusable sanitary napkin can replace multiple ordinary sanitary napkins, greatly reducing the number of sanitary napkins used during menstruation and also reducing expenses on sanitary napkins, especially lowering the cost of traveling during menstruation.
[0050] In addition, sanitary napkins stick to the crotch of underwear, and repeated tearing of the sanitary napkins often causes some damage to the underwear. However, in this embodiment, because the number of times the sanitary napkins are changed is reduced within the same period of time, the number of times the sanitary napkins stick to the crotch of the underwear is reduced, thereby reducing the number of tearing and extending the service life of the underwear to a certain extent.
[0051] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A sanitary napkin which is reusable, characterized in that, include: The main body of the sanitary napkin includes at least two absorbent bodies, each absorbent body including a top layer and a leak-proof bottom film. The lower surface of the top layer in the same absorbent body is bonded to the upper surface of the leak-proof bottom film. The absorbent bodies are stacked one on top of the other, and the leak-proof bottom film of the upper absorbent body is pressed and connected to the top layer of the lower absorbent body. An adhesive body that is bonded to the leak-proof bottom membrane of the absorbent body located at the lowest end.
2. The sanitary napkin of claim 1 wherein, Each absorber further includes a liquid storage layer disposed between the top layer and the leak-proof bottom membrane, the upper surface of the liquid storage layer being bonded to the top layer, and the lower surface of the liquid storage layer being bonded to the leak-proof bottom membrane.
3. The sanitary napkin of claim 2 wherein, The liquid storage layer is provided with several flow channels, and the flow channels are arranged to open upwards.
4. The extended-use sanitary napkin according to Claim 1, wherein, The upper surface of the sanitary napkin body is provided with a first embossed texture. The first embossed texture is recessed downward so that the multiple absorbent elements are pressed together. When the sanitary napkin body is rubbed, the absorbent element located on the upper side separates from the absorbent element located on the lower side.
5. The sanitary napkin of claim 4 wherein, The first embossing is provided along the edge of the sanitary napkin body.
6. The sanitary napkin of claim 5 wherein, The depth of the first embossing at the front and rear ends of the sanitary napkin body is less than the depth of the first embossing at the left and right ends of the sanitary napkin body.
7. The sanitary napkin of claim 5 wherein, The upper surface of the sanitary napkin body is provided with a second embossed pattern, which is located in the middle of the sanitary napkin body and is recessed downwards.
8. The extended-use sanitary napkin in accordance with Claim 1 wherein, The surface layer is made of a hydrophilic material.
9. The extended use sanitary napkin of Claim 1 wherein, The adhesive has side wings, which are located on the left and right sides of the adhesive.
10. The extended-use sanitary napkin in accordance with Claim 1 wherein, The reusable sanitary napkin also includes release paper, which is attached to the lower surface of the adhesive.