Anti-side-leakage sanitary towel with three-dimensional guard
By folding the wing layer to form a three-dimensional protective barrier and incorporating internal elastic bands, the problem of discomfort associated with existing sanitary napkins is solved, improving leak-proof performance and increasing comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-06
AI Technical Summary
Existing sanitary napkins with three-dimensional guards cause discomfort and a feeling of foreign objects due to structural design defects.
The protective wing layer is folded to form a three-dimensional protective barrier. It uses fabric material and has internal elastic bands to make the outer side of the three-dimensional protective barrier curl up. A skin-touch strip is set on the outer side to increase the height difference, thereby enhancing the leak-proof performance and eliminating the feeling of foreign objects.
It achieves improved leak-proof performance with three-dimensional protective barriers, making it more comfortable to wear against the skin and eliminating any foreign body sensation.
Smart Images

Figure CN223969225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sanitary napkin technology, specifically to a sanitary napkin with a three-dimensional protective barrier to prevent side leakage. Background Technology
[0002] Chinese Patent Publication No. CN217723919U discloses a sanitary napkin with a three-dimensional protective barrier, comprising a surface layer, a core, and a bottom layer. The core is fixedly connected to the upper surface of the bottom layer, and the surface layer is wrapped around the core. The surface layer is fixedly connected to the bottom layer. Three-dimensional protective barriers are fixedly arranged on both sides of the middle of the upper surface of the bottom layer. The three-dimensional protective barriers are hollow structures, and a plurality of elastic components are arranged inside the hollow structure. One end of each elastic component is adhered to the bottom layer, and the other end of each elastic component is adhered to the three-dimensional protective barrier.
[0003] This utility model features a three-dimensional protective barrier and elastic components. The three-dimensional protective barrier can block menstrual blood and prevent side leakage. However, the utility model uses a hollow three-dimensional protective barrier structure with a spiral spring inside for support. Since metal products are much harder than fabric, this structure can cause a strong foreign body sensation and discomfort when worn. Utility Model Content
[0004] Therefore, in order to address the above problems, this utility model provides a sanitary napkin with a three-dimensional protective barrier to prevent side leakage, thereby solving the problem of discomfort caused by structural design defects in existing sanitary napkins with three-dimensional protective barriers.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] A leak-proof sanitary napkin with a three-dimensional protective barrier includes a sanitary napkin body and protective wings. The protective wings are located on both sides of the sanitary napkin body. The sanitary napkin body includes a surface layer, an absorbent core, and a leak-proof layer arranged sequentially from top to bottom. The sanitary napkin body has a middle area and side areas, with the side areas located on both sides of the middle area. Each protective wing includes a protective wing layer. Each protective wing layer extends towards each of the side areas and is folded twice to form a three-dimensional protective barrier. Each three-dimensional protective barrier has a protective elastic band on its inner side to make the outer side of each three-dimensional protective barrier curl upward. The outer side of each three-dimensional protective barrier extends outward towards the edge of the sanitary napkin body to form a skin-contact strip. Each skin-contact strip has a hollow structure.
[0007] Furthermore, the outer surface extends into the gaps between the second folds of each of the three-dimensional protective enclosures on both sides.
[0008] Furthermore, each of the aforementioned protective elastic bands is disposed on the top of the surface layer.
[0009] Furthermore, the absorbent core includes an absorbent layer and a wrapping layer, with the wrapping layer disposed on the outside of the absorbent layer.
[0010] Furthermore, the folded layers of each of the three-dimensional protective enclosures are connected by folding adhesive.
[0011] Furthermore, the surface layer, absorbent core, and leak-proof layer are connected by structural adhesive.
[0012] Furthermore, it also includes a release adhesive layer, which comprises a main release adhesive layer and wing release adhesive layers. The main release adhesive layer is disposed at the bottom of the sanitary napkin body, and the wing release adhesive layer is disposed at the bottom of each wing.
[0013] Furthermore, release paper is provided at the bottom of the release adhesive layer.
[0014] Furthermore, a flow guiding layer is provided between the surface layer and the absorbent core.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model uses a three-dimensional protective barrier formed by folding the protective wing layer to prevent side leakage. The three-dimensional protective barrier is made of fabric that is gentle and skin-friendly. To enhance the leak-proof performance of the three-dimensional protective barrier, this application sets a protective elastic band on the inner side of the three-dimensional protective barrier so that the outer side of the three-dimensional protective barrier is raised to increase the height difference between the outer side of the protective barrier and the surface of the sanitary napkin. At the same time, a skin-contact strip is set on the outer side of the three-dimensional protective barrier to make it more skin-friendly and without any foreign body sensation. Attached Figure Description
[0017] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of a preferred embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram of the flow guide layer structure in a preferred embodiment of the present invention.
[0020] Explanation of icon numbers
[0021] Sanitary napkin body 1; surface layer 11; absorbent core 12; absorbent layer 121; wrapping layer 122; leak-proof layer 13; diversion layer 14; structural adhesive 15;
[0022] Wing 2; Wing layer 21;
[0023] Middle Zone 3;
[0024] Side area 4;
[0025] 5. 3D protective barrier; 51. Foldable adhesive; 52. Protective barrier elastic band; 53. Skin-touch strip;
[0026] Release adhesive layer 6; main body release adhesive layer 61; wing release adhesive layer 62;
[0027] Release paper 7. Detailed Implementation
[0028] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0029] Example
[0030] like Figures 1 to 3 As shown, a sanitary napkin with a three-dimensional protective barrier for preventing side leakage includes a sanitary napkin body 1 and protective wings 2. The protective wings 2 are located on both sides of the sanitary napkin body 1. The sanitary napkin body 1 includes a surface layer 11, an absorbent core 12, and a leak-proof layer 13 arranged sequentially from top to bottom. The absorbent core 12 includes an absorbent layer 121 and a wrapping layer 122. The wrapping layer 122 is located outside the absorbent layer 121. The sanitary napkin body 1 has a middle area 3 and a side area 4. The side areas 4 are located on both sides of the middle area 3. Each protective wing 2 includes a protective wing layer 21. Each protective wing layer 21 extends towards each side area 4 and is folded twice to form a three-dimensional protective barrier 5. The folded layers of each three-dimensional protective barrier 5 are connected by folding adhesive 51. Each three-dimensional protective barrier 5 has a protective elastic band 52 on its inner side to make the outer side of each three-dimensional protective barrier 5 curl upward. The outer side of each three-dimensional protective barrier 5 extends outward towards the edge of the sanitary napkin body 1 to form a skin-contact strip 53. Each skin-contact strip 53 has a hollow structure.
[0031] In other preferred embodiments, the surface layer 11 is provided with a flow guiding layer 14 between the absorbent core 12.
[0032] The surface layer 11, the flow guiding layer 14, the absorbent core 12 and the leak-proof layer 13 are all connected by structural adhesive 15.
[0033] The three-dimensional protective barrier 5, formed by folding the protective wing layer 21, is used to prevent side leakage. The material of the three-dimensional protective barrier 5 is made of fabric, which is gentle and skin-friendly. In order to enhance the leak-proof properties of the three-dimensional protective barrier 5, this application provides a protective elastic band 52 on the inner side of the three-dimensional protective barrier 5 so that the outer side of the three-dimensional protective barrier 5 is raised to increase the height difference between the outer side of the three-dimensional protective barrier 5 and the surface of the sanitary napkin body 1. At the same time, a skin-contact strip 53 is provided on the outer side of the three-dimensional protective barrier 5 to contact the skin, making it more skin-friendly and without foreign body sensation.
[0034] In this embodiment, the outer layer 11 extends into the gap between the second fold of each of the three-dimensional guardrails 5 on both sides; this structural design can smooth the height difference between the middle area 3 and the side area 4, making it more comfortable to wear; in this embodiment, each of the guardrail elastic bands 52 is located at the top of the outer layer 11; in other preferred embodiments, each of the guardrail elastic bands 52 can also be located at the bottom of the outer layer 11.
[0035] In other preferred embodiments, the two sides of the surface layer 11 are located at the bottom of the protective wing surface layer 21. This structural design can increase the height difference between the middle area 3 and the side area 4, improve the leak-proof performance, and can be modified according to actual product requirements.
[0036] It also includes a release adhesive layer 6, which includes a main release adhesive layer 61 and wing release adhesive layers 62. The main release adhesive layer 61 is located at the bottom of the sanitary napkin body 1, and the wing release adhesive layer 62 is located at the bottom of each of the wings 2. Release paper 7 is provided at the bottom of the release adhesive layer 6.
[0037] The structural adhesive 15, folding adhesive 51, and release adhesive layer 6 of this utility model can all be hot melt adhesives.
[0038] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. A side leakage preventing sanitary napkin with a three-dimensional containment, comprising a sanitary napkin main body and flaps, the flaps being arranged on both sides of the sanitary napkin main body, the sanitary napkin main body comprising a surface layer, an absorbent core and a leakage preventing layer arranged in sequence from top to bottom, characterized in that: The sanitary napkin body is provided with a middle area and side areas, the side areas are arranged on both sides of the middle area, each of the flaps comprises a flap layer, each of the flap layers extends to each of the side areas and is folded twice to form a three-dimensional guard, an inner side of each of the three-dimensional guards is provided with a guard rubber band to make an outer side of each of the three-dimensional guards upwardly curve, and an outer side of each of the three-dimensional guards extends outwardly beyond the edge of the sanitary napkin body to form a skin contact strip, each of the skin contact strips is a hollow structure.
2. A side leakage preventing sanitary napkin with a three-dimensional barrier according to claim 1, characterized in that: The surface layer penetrates into the gaps between the second folds of each of the three-dimensional guards on both sides.
3. A side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 2, characterized in that: Each of the guard rubber bands is arranged on the top of the surface layer.
4. The side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 1, characterized by: The absorbent core comprises an absorbent layer and a wrapping layer, and the wrapping layer is arranged on the outer side of the absorbent layer.
5. The side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 1, characterized by: Each of the folded layers of each of the three-dimensional guards is connected by a folding adhesive.
6. The side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 1, characterized by: The surface layer, the absorbent core and the leakage-proof layer are connected by a structural adhesive.
7. The side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 1, characterized by: Further comprising a release adhesive layer, the release adhesive layer comprises a main body release adhesive layer and a flap release adhesive layer, the main body release adhesive layer is arranged on the bottom of the sanitary napkin body, and the flap release adhesive layer is arranged on the bottom of each of the flaps.
8. A side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 7, characterized in that: The bottom of the release adhesive layer is provided with a release paper.
9. The side leakage preventing sanitary napkin with a three-dimensional containment barrier according to claim 1, characterized by: The surface layer is provided with a flow guide layer between the absorbent core.
Citation Information
Patent Citations
Sanitary towel with three-dimensional protective enclosure
CN217723919U