Trousers-shaped sanitary towel capable of preventing side leakage and blocking rear leakage
By designing leak-proof side panels and back leak-proof layers in pant-style sanitary napkins, the side and back leakage problems of pant-style sanitary napkins during baby's movement and changing are solved, achieving a more efficient leak-proof effect, especially preventing urine or feces from flowing to the baby's waist or back during changing.
Patent Information
- Application Number
- CN202422890486.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Panty-style sanitary napkins are prone to side leakage when the baby is moving and back leakage when changing them, especially during the changing process, when urine or feces may flow onto the baby's waist or back.
A pant-style sanitary napkin designed to prevent side leakage and back leakage is adopted, which adopts a leak-proof side panel and a back leakage-proof layer structure. The leak-proof side panel includes a first leak-proof part and a second leak-proof part. A back leakage-proof pocket is provided on the back elastic waistband. The rear end of the absorbent core extends into the back leakage-proof pocket. The back leakage-proof layer is made of elastic non-woven fabric. A front leakage-proof layer is provided on the front elastic waistband to form a front leakage-proof pocket. A diversion groove is provided on the absorbent core to prevent liquid side leakage.
It effectively prevents urine or feces from leaking out from the back and prevents urine or feces from flowing backward during the changing process, improving the leak-proof effect, especially when changing the baby's pull-up diaper, avoiding side and back leakage of urine or feces.
Smart Images

Figure CN223861008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disposable hygiene products, and in particular to a pant-type sanitary napkin that prevents side leakage and back leakage. Background Technology
[0002] Pull-up sanitary napkins, also known as panty-style sanitary napkins, have leak-proof side panels that extend inwards to contact the baby's body when worn. When the baby moves, these panels may shift, resulting in insufficient fit and potential leakage. When changing pull-up diapers, the baby lies on a waterproof pad, and the elastic waistband's side seams are torn open. The pull-up diaper is then laid flat on the pad. If there is too much urine or feces on the pull-up diaper, it can easily flow backwards, especially during changes when the baby urinates or defecates. This can cause side and back leakage, potentially reaching the baby's waist or back, requiring cleaning. Utility Model Content
[0003] Therefore, to address the aforementioned problems, this utility model proposes a pant-type sanitary napkin that prevents side leakage and back leakage. It solves the technical problem that pull-up diapers have poor leak-proof performance, and that urine or feces may leak from the side or back when changing pull-up diapers.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A panty-type sanitary napkin that prevents side leakage and back leakage includes a pull-up panty body. The pull-up panty body includes an absorbent core, a front elastic waistband connected to the front end of the absorbent core, and a back elastic waistband connected to the rear end of the absorbent core. Leak-proof partitions are fixed along both sides of the pull-up panty body, and the two ends of the leak-proof partitions are fixed to the top of the pull-up panty body. Each leak-proof partition includes a fixing part fixed to the pull-up panty body, a first leak-proof part connected to the fixing part, and a second leak-proof part connected to the first leak-proof part. The first leak-proof part extends inward, and the second leak-proof part is folded over with its free end extending outward. Both the first and second leak-proof parts are provided with elastic bands. A back leak-proof layer is provided on the back elastic waistband, and a back leak-proof pocket is formed between the back leak-proof layer and the back elastic waistband. The opening of the back leak-proof pocket faces the absorbent core.
[0006] Further:
[0007] The width of the leak-proof pocket is greater than the width of the absorbent core.
[0008] The rear end of the absorbent core extends entirely into the leak-proof pocket.
[0009] The back leak prevention layer comprises an elastic nonwoven fabric.
[0010] The leak-proof layer also includes an absorbent layer laminated to the bottom of the elastic nonwoven fabric.
[0011] The front elastic waistband is provided with a front leak prevention layer, and a front leak prevention pocket is formed between the front leak prevention layer and the front elastic waistband, with the opening of the front leak prevention pocket facing the absorbent core.
[0012] The width of the front leak-proof pocket is greater than the width of the absorbent core, and the front end of the absorbent core extends entirely into the back leak-proof pocket.
[0013] The structure of the front leakage prevention layer is the same as that of the rear leakage prevention layer.
[0014] An elastic band is provided at the connection between the first leak-proof part and the second leak-proof part.
[0015] The absorbent core is provided with at least one guide groove arranged along the length direction, and the guide groove can extend into the leak-proof pocket.
[0016] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:
[0017] This utility model's leak-proof side panel has a first leak-proof part and a second leak-proof part. The first leak-proof part extends inward to fit against the leg, and the second leak-proof part extends outward to fit against the leg, providing a double leak-proof function. Both parts are formed from the same fabric and interact with each other, greatly improving the leak-proof effect. A back leak-proof pocket is provided on the elastic waistband, which not only prevents urine or feces from leaking from the back but also prevents urine and feces from flowing backward when changing pull-ups. Especially during the changing process, it effectively prevents side and back leakage of the baby's urine or feces. Furthermore, the rear end of the absorbent core is fully... The part extends into the back leak-proof pocket, effectively preventing back leakage of liquid from the rear end of the absorbent core; further, the back leak-proof layer includes elastic non-woven fabric, which is elastic and can shrink, and can appropriately expand according to the liquid pressure when the liquid flows to the rear end; further, the absorbent layer can absorb liquid, preventing liquid from flowing out after entering the back leak-proof pocket; further, the front leak-proof layer has the characteristic of preventing front leakage, which can effectively prevent the baby's urine or stool from leaking out when changing pull-ups if the baby suddenly urinates or defecates; further, the drainage channel has longitudinal drainage, which can prevent side leakage due to excessive urine. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of the pant-type sanitary napkin in Example 1.
[0019] Figure 2 This is a cross-sectional view of the leak-proof partition.
[0020] Figure 3 This is a partial cross-sectional view of the anti-leakage layer.
[0021] Figure 4This is a schematic diagram of the structure of the absorber core with a flow guide groove in Embodiment 1.
[0022] Figure 5 This is a schematic diagram of the structure of the pant-type sanitary napkin in Example 2.
[0023] Figure label:
[0024] 1. Absorbent core; 11. Drainage channel; 2. Front elastic waistband; 3. Back elastic waistband; 4. Leak-proof partition; 41. Fixing part; 42. First leak-proof part; 43. Second leak-proof part; 44. Elastic band; 5. Back leak-proof layer; 50. Back leak-proof pocket; 51. Elastic non-woven fabric; 52. Absorbent layer; 6. Front leak-proof layer; 60. Front leak-proof pocket. Detailed Implementation
[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0026] Example 1
[0027] refer to Figures 1 to 3 Embodiment 1 provides a panty-type sanitary napkin that prevents side leakage and back leakage, including a pull-up panty body. The pull-up panty body includes an absorbent core 1, a front elastic waistband 2 connected to the front end of the absorbent core 1, and a back elastic waistband 3 connected to the rear end of the absorbent core 1. Leak-proof partitions 4 are fixed along both sides of the pull-up panty body. The two ends of the leak-proof partitions 4 are fixed to the top of the pull-up panty body. The leak-proof partitions 4 include a fixing part 41 fixed to the pull-up panty body, a first leak-proof part 42 connected to the fixing part 41, and a second leak-proof part 43 connected to the first leak-proof part 42. The first leak-proof part 4... 2. Extending inwards, the second leak-proof part 43 is folded over and its free end extends outwards. Both the first leak-proof part 42 and the second leak-proof part 43 are provided with elastic bands 44, and elastic bands 44 are provided at the connection between the first leak-proof part 42 and the second leak-proof part 43. A back leak-proof layer 5 is provided on the back elastic waistband 3, forming a back leak-proof pocket 50 between the back leak-proof layer 5 and the back elastic waistband 3. The opening of the back leak-proof pocket 50 faces the absorbent core 1, and the width of the back leak-proof pocket 50 is greater than the width of the absorbent core 1. The rear end of the absorbent core 1 extends entirely into the back leak-proof pocket 50. The back leak-proof layer 5 includes an elastic nonwoven fabric 51, and the back leak-proof layer 5 also includes an absorbent layer 52 laminated to the bottom of the elastic nonwoven fabric 51.
[0028] In one embodiment, the width of the aforementioned leak-proof pocket 50 may also be less than or equal to the width of the absorbent core 1.
[0029] In one embodiment, the rear end of the absorbent core 1 may extend partially or not at all into the leak-proof pocket 50.
[0030] In one embodiment, the back leakage prevention layer 5 may be made of ordinary non-woven fabric or other materials; in another embodiment, the absorbent layer 52 may not be provided.
[0031] In one embodiment, the elastic band 44 may not be provided at the connection between the first leak-proof part 42 and the second leak-proof part 43, depending on the specific circumstances.
[0032] refer to Figure 4 In one embodiment, the absorbent core 1 may be provided with a guide groove 11 arranged along the length direction, and the guide groove 11 can extend into the anti-leakage pocket 50.
[0033] The working principle of this utility model is as follows:
[0034] When worn, the panty-style sanitary napkin has a first leak-proof section 42 that extends inward to fit the leg, and a second leak-proof section 43 that extends outward to fit the leg, providing double leak protection. The elastic waistband 3 has a back leak-proof pocket 50, which not only prevents urine or feces from leaking out from the back, but also prevents urine and feces from flowing backward when changing pull-ups. Especially during the changing process, it can effectively prevent the side and back leakage of the baby's urine or feces.
[0035] Example 2
[0036] refer to Figures 1 to 5 The main difference between Embodiment 2 and Embodiment 1 is that Embodiment 2 has a front leak-proof layer 6 on the front elastic waistband 2, forming a front leak-proof pocket 60 between the front leak-proof layer 6 and the front elastic waistband 2, with the opening of the front leak-proof pocket 60 facing the absorbent core 1. The width of the front leak-proof pocket 60 is greater than the width of the absorbent core 1, and the entire front end of the absorbent core 1 extends into the back leak-proof pocket 50. The structure of the front leak-proof layer 6 is the same as the structure of the back leak-proof layer 5.
[0037] The structure of the aforementioned front leakage prevention layer 6 may differ from the structure of the aforementioned rear leakage prevention layer 5.
[0038] In one embodiment, the front end of the absorbent core 1 may not extend into the leak-proof pocket 50.
[0039] Compared to Example 1, the anti-leakage layer 6 in Example 2 has a better anti-leakage effect.
[0040] 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 pant-style sanitary napkin that prevents side leakage and blocks back leakage, characterized in that: The device includes a pull-up diaper body, comprising an absorbent core, a front elastic waistband connected to the front end of the absorbent core, and a rear elastic waistband connected to the rear end of the absorbent core. Leak-proof partitions are fixed along both sides of the pull-up diaper body, with both ends fixed to the top of the pull-up diaper body. Each leak-proof partition includes a fixing part fixed to the pull-up diaper body, a first leak-proof part connected to the fixing part, and a second leak-proof part connected to the first leak-proof part. The first leak-proof part extends inward, and the second leak-proof part is folded over with its free end extending outward. Both the first and second leak-proof parts are provided with elastic bands. The rear elastic waistband has a back leak-proof layer, forming a back leak-proof pocket between the back leak-proof layer and the rear elastic waistband, with the opening of the back leak-proof pocket facing the absorbent core.
2. The pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 1, characterized in that: The width of the leak-proof pocket is greater than the width of the absorbent core.
3. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 2, characterized in that: The rear end of the absorbent core extends entirely into the leak-proof pocket.
4. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 1, characterized in that: The back leak prevention layer comprises an elastic nonwoven fabric.
5. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 4, characterized in that: The leak-proof layer also includes an absorbent layer laminated to the bottom of the elastic nonwoven fabric.
6. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 1, characterized in that: The front elastic waistband is provided with a front leak prevention layer, and a front leak prevention pocket is formed between the front leak prevention layer and the front elastic waistband, with the opening of the front leak prevention pocket facing the absorbent core.
7. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 6, characterized in that: The width of the front leak-proof pocket is greater than the width of the absorbent core, and the front end of the absorbent core extends entirely into the back leak-proof pocket.
8. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 6, characterized in that: The structure of the front leakage prevention layer is the same as that of the rear leakage prevention layer.
9. A pant-type sanitary napkin for preventing side leakage and blocking back leakage according to claim 1, characterized in that: An elastic band is provided at the connection between the first leak-proof part and the second leak-proof part.
10. A pant-type sanitary napkin that prevents side leakage and blocks back leakage according to any one of claims 1 to 9, characterized in that: The absorbent core is provided with at least one guide groove arranged along the length direction, and the guide groove can extend into the leak-proof pocket.