A type of leak-proof diaper
By laminating a PE film onto the diaper's three-dimensional protective barrier and designing an eight-shaped arc, combined with elastic bands, the side leakage problem of traditional diapers when sleeping on one's side is solved, achieving effective urine absorption and leak prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LECHEN SANITARY PROD CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional disposable diapers are prone to side leakage when babies sleep on their sides, as urine concentrates on the sides of the 3D protective barrier due to gravity, resulting in incomplete absorption.
A PE film is laminated onto the 3D protective barrier of the diaper, and adhesive is sprayed onto it to form a figure-eight arc. Combined with the elastic band design, the 3D protective barrier is tilted to guide urine flow to the core and prevent side leakage.
It effectively prevents urine leakage, ensures that urine is absorbed by the core, avoids clothing stains, and improves user comfort.
Smart Images
Figure CN224572910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diaper technology, specifically to a leak-proof diaper. Background Technology
[0002] Disposable diapers are replacement clothing worn daily by infants and toddlers during their growth and development. They directly replace regular diapers and pads. Through the secure installation of disposable diapers, they can efficiently absorb the child's excrement, preventing excrement from soiling clothing and preventing the child from catching a cold due to clothing soiling, which could affect their growth and development.
[0003] Currently, traditional diapers on the market have a main structure made up of a 3D protective barrier, a surface layer, and a core. When the baby sleeps on their side, the 3D protective barrier is in an upright position. When urine reaches the 3D protective barrier, it concentrates to the side due to gravity, which can easily cause side leakage. Therefore, a leak-proof diaper has been proposed. Utility Model Content
[0004] In view of the shortcomings of the prior art, the present invention provides a leak-proof diaper to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof diaper, comprising a diaper body, wherein the diaper body is composed of a three-dimensional protective barrier, a surface layer and a core, and the outer surface of the diaper body is laminated with two composite PE films.
[0006] Furthermore, a connecting strip is fixedly connected to one side of the diaper body, and a fixing strip is fixedly connected to the end of the diaper body away from the connecting strip. The outer surface of the connecting strip is provided with a hook and loop fastener, and the outer surface of the fixing strip is provided with a hook and loop fastener barbed surface that matches the hook and loop fastener.
[0007] Furthermore, the two composite PE films are located at one-third and two-thirds of the main body of the diaper, respectively.
[0008] Furthermore, both the fixing strip and the connecting strip are elastic elastic strips.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] This leak-proof diaper works by laminating the diaper's surface layer, core, and 3D side guards. Adhesive is then sprayed onto the 3D side guards, and a composite PE film is laminated on top. When the product is in use, due to the presence and stretching of the composite PE film, the 3D side guards do not stand upright like traditional products. Instead, they tilt inwards, forming a slight curve, resembling an "8". When the baby sleeps on their side, urine reaches the 3D side guards. Because of the curve, the urine flows towards the core under gravity, where it is absorbed, thus preventing side leakage. Attached Figure Description
[0011] Figure 1 This is a front view structural diagram of the present invention;
[0012] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.
[0013] In the picture: 1. Diaper body; 2. 3D guard; 3. Composite PE film; 4. Connecting strip; 5. Hook and loop fastener; 6. Hook and loop fastener; 7. Fixing strip. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please refer to the following: Figures 1-2 This utility model provides a technical solution: a leak-proof diaper, including a diaper body 1, which is composed of a three-dimensional protective barrier 2, a surface layer and a core, and two composite PE films 3 are laminated on the outer surface of the diaper body 1.
[0016] The two composite PE films 3 are located at one-third and two-thirds of the main body 1 of the diaper, respectively. Specifically, after the surface layer, core, and three-dimensional guard 2 of the diaper are laminated, adhesive is sprayed onto the three-dimensional guard 2, and a composite PE film 3 is laminated on top of it. The distance between the two composite PE films 3 is at 1 / 3 and 2 / 3 of the product length, respectively. This allows the three-dimensional guard 2 to be stretched to a certain angle when the product is worn, without blocking urine from dripping. When the product is in use, due to the presence and stretching of the composite PE film 3, the three-dimensional guard 2 will not stand upright like traditional products, but will tilt inward to form a certain arc, forming a figure-eight shape. When the baby sleeps on their side, urine reaches the three-dimensional guard 2. Because of the arc of the three-dimensional guard 2, the urine flows downward under the action of gravity (i.e., the core part), allowing the urine to be absorbed by the core. At the same time, because there is also a composite PE film 3 on the outside of the three-dimensional guard 2, even if the urine passes through the composite PE film 3, it will be blocked from flowing back, thus avoiding side leakage.
[0017] Furthermore, a connecting strip 4 is fixedly connected to one side of the diaper body 1, and a fixing strip 7 is fixedly connected to the end of the diaper body 1 away from the connecting strip 4. The outer surface of the connecting strip 4 is provided with a Velcro hook surface 5, and the outer surface of the fixing strip 7 is provided with a Velcro barbed surface 6 that matches the Velcro hook surface 5. Specifically, the diaper is put on from the baby's crotch, and the Velcro hook surface 5 is attached to the Velcro barbed surface 6, so that the diaper is worn on the baby's body.
[0018] Furthermore, both the fixing strip 7 and the connecting strip 4 are elastic strips. Specifically, by setting the fixing strip 7 and the connecting strip 4 to be elastic, the fixing strip 7 and the connecting strip 4 have elasticity, making it easier for the baby to wear the diaper.
[0019] Working principle: In use, after the outer layer, core, and three-dimensional guard 2 of the diaper are laminated, adhesive is sprayed onto the three-dimensional guard 2, and a composite PE film 3 is laminated on top of it. The distance between the two composite PE films 3 is 1 / 3 and 2 / 3 of the product length, respectively. When the product is worn, the three-dimensional guard 2 can be stretched to a certain angle without blocking urine from dripping. When the product is in use, due to the presence and stretching of the composite PE film 3, the three-dimensional guard 2 will not stand upright like traditional products, but will tilt inward to form a certain arc, in the shape of an "8". When the baby sleeps on his / her side, the urine reaches the three-dimensional guard 2. Because of the arc of the three-dimensional guard 2, the urine flows downward under the action of gravity (i.e., the core part), allowing the urine to be absorbed by the core. At the same time, because there is also a composite PE film 3 on the outside of the three-dimensional guard 2, even if the urine passes through the composite PE film 3, it will be blocked from flowing back, thus avoiding side leakage.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A side leakage preventing diaper, comprising a diaper main body (1), characterized in that: The diaper body (1) is composed of a three-dimensional protective barrier (2), a surface layer and a core, and the outer surface of the diaper body (1) is laminated with two composite PE films (3).
2. The side leakage preventing paper diaper according to claim 1, wherein: A connecting strip (4) is fixedly connected to one side of the diaper body (1), and a fixing strip (7) is fixedly connected to the end of the diaper body (1) away from the connecting strip (4). The outer surface of the connecting strip (4) is provided with a hook and loop fastener (5), and the outer surface of the fixing strip (7) is provided with a hook and loop fastener (6) that matches the hook and loop fastener (5).
3. The side leakage preventing paper diaper according to claim 1, wherein: The two composite PE films (3) are located at one-third and two-thirds of the diaper body (1), respectively.
4. The side leakage preventing paper diaper according to claim 2, wherein: Both the fixing strip (7) and the connecting strip (4) are elastic elastic strips.