Comfortable paper diaper capable of preventing side leakage

The flat, breathable diaper design with adjustable leak prevention edges and elastic waistbands addresses pressure and airflow issues, enhancing comfort and leak prevention.

CN223095717UActive Publication Date: 2025-07-15HUNAN SHUANGJIE HYGIENIC PROD CO LTD
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Patent Information

Application Number
CN202422130993.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-07-15
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

The leak-proof partition design of existing diapers can easily create a sense of pressure on the baby's thighs, affect breathability and easily lead to side leakage.

Method used

The design of flat strips and tension strips is adopted. The leakage strip is made of breathable fabric. The tension of the tension strips shrinks the leakage strips, combined with the absorbent core material to enhance the anti-side leakage performance, and a soft non-woven surface layer and elastic waist belt structure are used to improve comfort and fit.

Benefits of technology

While effectively preventing side leakage, it reduces the pressure on the thighs, maintains good breathability and comfort, reduces skin friction, prevents liquid leakage, and ensures that it remains fit during baby activities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a comfortable type paper diaper capable of preventing side leakage, which comprises a paper diaper body, the paper diaper body comprises a surface layer, an absorption core layer and a leakage-proof bottom layer which are sequentially arranged from top to bottom, and leakage-proof partition edges are sewn on two sides of the surface layer of the paper diaper; the leakage-proof partition edges comprise leakage-proof strips and tensioning strips, and a plurality of tensioning strips are arranged between the absorption core layer and the leakage-proof bottom layer and stretch across the leakage-proof bottom layer. The two ends of the tensioning strip are connected with the corresponding leakage-proof strips on the two sides respectively, the tensioning strip can pull the leakage-proof strips through expansion of the absorption core layer, and the leakage-proof strips can be shrunk and rolled in the axial direction of the tensioning strip through pulling of the tensioning strip. According to the utility model, the design of the anti-leakage strip is optimized, and the tension of the tensioning strip is utilized, so that the double improvement of side leakage prevention and comfort is realized; due to the use of the breathable cloth and the ingenious design of the tensioning strips, the paper diaper can effectively prevent side leakage, meanwhile, good breathability and comfort can be kept, and the paper diaper is suitable for being used by infants for a long time.
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Description

Technical Field

[0001] The utility model relates to the field of diapers, in particular to a comfortable diaper with anti-side leakage function. Background Art

[0002] As a disposable sanitary product, diapers can quickly absorb urine, keep the skin dry, and are easy to change, so they are favored by people. The basic structure of a diaper consists of a surface layer, a diversion layer, an upper wrapping layer, a core body, a lower wrapping layer, and a bottom film layer. With the improvement of people's living standards, due to the advantages of being convenient to carry and clean, diapers for infants and young children are used more and more widely. Before wearing the existing diapers, it is necessary to hold the anti-leakage edge of the diaper with fingers to make the anti-leakage edge stand up, so as to effectively prevent side leakage. However, if a novice does not know the correct way to wear the diaper, or is not careful when wearing it, it is very easy to cause side leakage problems and lead to urine leakage.

[0003] The prior art CN202322875653.1 discloses an anti-leakage edge diaper, which includes a diaper body. The diaper body includes a surface layer, an absorption core layer, and an anti-leakage bottom layer arranged in sequence from top to bottom. Anti-leakage edges are respectively arranged on both sides of the diaper body along the length direction. The top of the anti-leakage edge is bent away from the absorption core layer to form a folding edge. A plurality of elastic rubber bands are evenly arranged along the length direction of the diaper body inside the folding edge. A pulling strip is arranged on the folding edge, and a corresponding pasting part is arranged on the lower surface of the anti-leakage bottom layer. One end of the pulling strip is fixed to the middle of the folding edge, and the other end is pasted on the pasting part. Although this utility model can quickly adjust the anti-leakage edge through the pulling strip, there are still the following problems:

[0004] 1. The existing anti-leakage edges are all sewn on the inner surface of the diaper, and their height is higher than the inner surface. After the diaper is put on, the side needs to fit the thigh. The protrusion of the anti-leakage edge will cause a sense of pressure on the baby's thigh. Especially after wearing for a long time, it may cause discomfort or even leave marks.

[0005] 2. In order to effectively prevent side leakage, the anti-leakage strips are usually designed to be vertical or slightly inclined, and may protrude from the inner surface of the diaper and closely fit the baby's thigh root. This close fit will also reduce the space for air circulation and affect breathability. Summary of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide a leak-proof and comfortable diaper. By optimizing the design of the leak-proof strip and utilizing the tension of the tensioning strip, the dual improvements of leak-proof performance and comfort are achieved; the use of breathable fabric and the ingenious design of the tensioning strip ensure that while the diaper effectively prevents side leakage, it can also maintain good breathability and comfort, making it suitable for long-term use by infants.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0008] Provide a leak-proof and comfortable diaper, including: a diaper body, the diaper body includes a surface layer, an absorbent core layer, and a leak-proof bottom layer arranged in sequence from top to bottom, and leak-proof side edges are sewn on both sides of the diaper surface layer;

[0009] The leak-proof side edge includes a leak-proof strip and a tensioning strip. The leak-proof strip is integrally flat strip-shaped and is respectively arranged on both sides of the surface layer; a plurality of tensioning strips are arranged across the leak-proof bottom layer between the absorbent core layer and the leak-proof bottom layer; both ends of the tensioning strip are respectively connected to the corresponding leak-proof strips on both sides, and the tensioning strip can pull the leak-proof strip through the expansion of the absorbent core layer, and the leak-proof strip can be shrunk and curled along the axial direction of the tensioning strip through the pulling of the tensioning strip.

[0010] It should be noted that the flat strip-shaped leak-proof strip reduces the pressure on the thighs, making the baby feel more comfortable during use. The tensioning strip can generate tension in response to the expansion of the absorbent core layer, prompting the leak-proof strip to shrink and curl; when the user excretes liquid, the absorbent core layer will start to absorb and expand. As the absorbent core layer expands, it will drive the tensioning strip to generate tension, and then make the leak-proof strip shrink and curl along the axial direction of the tensioning strip, so that the leak-proof strips are stacked together to increase the thickness, which can effectively seal the gap between the side and the skin, thereby enhancing the leak-proof performance. At the same time, the flat strip-shaped leak-proof strip reduces the pressure on the thighs, making the baby feel more comfortable during use.

[0011] Preferably, the leak-proof strip is formed by folding and bonding breathable fabric, and is respectively connected to the leak-proof bottom layer and the surface layer of the diaper. There is a gap for the tensioning strip to pass through between the folded side edges of the leak-proof strip. The end of the tensioning strip passes through the gap between the folded side edges and is connected to the bent part of the leak-proof strip, and can pull the bent part towards the folded side edge through the tensioning strip.

[0012] It should be noted that the leak-proof strip is formed by folding breathable fabric in half. This can ensure that while maintaining its leak-proof function, the leak-proof strip also has good breathability, reducing the friction and pressure between the skin and the leak-proof strip. The breathable fabric can be non-woven fabric, fluffy cotton, etc. The sides of the leak-proof strip after folding are respectively connected to the leak-proof bottom layer and the surface layer of the diaper, which can ensure that the leak-proof strip will not move or fall off easily during use, thereby improving the effect of preventing side leakage. The end of the tightening strip passes through between the folded sides of the leak-proof strip and is connected to the bent part of the leak-proof strip. When the absorbent core layer absorbs liquid and starts to expand, the tightening strip will be tightened, and then pull the bent part of the leak-proof strip towards the folded side, so that the leak-proof strips are all stacked at the part connected to the surface layer, thus closing the gap between the side and the skin.

[0013] Preferably, the leak-proof strip is filled with absorbent core material.

[0014] It should be noted that absorbent core materials generally refer to substances with high water absorption capacity, such as superabsorbent polymers (SAP), wood pulp, etc. They can quickly absorb liquid and lock in moisture to prevent liquid diffusion. By filling the leak-proof strip with absorbent core materials, not only can the side leakage prevention performance of the leak-proof strip be enhanced, but also its absorption capacity can be improved. When the liquid contacts the leak-proof strip, the absorbent core materials can quickly absorb the liquid, and during the curling process, these materials will further absorb the excess liquid, increasing the effective thickness of the leak-proof strip, thereby more effectively closing the gap between the side and the skin and preventing liquid side leakage.

[0015] Preferably, there are three tightening strips, and the three tightening strips are evenly distributed longitudinally in the diaper between the absorbent core layer and the leak-proof bottom layer, and at least one tightening strip is located in the middle of the absorbent core layer, and the other two are respectively located at the front and rear of the absorbent core layer.

[0016] It should be noted that evenly distributing the three tightening strips longitudinally in the diaper can ensure that no matter where the liquid is absorbed in the diaper, the leak-proof strip at the corresponding part can be curled through the action of the tightening strip, thereby effectively closing the side gap and preventing liquid side leakage.

[0017] Preferably, the surface layer is made of soft non-woven fabric material.

[0018] It should be noted that the surface layer is selected as soft non-woven fabric material. This material is not only soft and comfortable, but also has good breathability and moisture absorption. Using soft non-woven fabric material as the surface layer can reduce the friction between the diaper and the baby's skin, reduce irritation, and improve the comfort of the baby during wearing.

[0019] Preferably, the diaper body further includes an elastic waistband structure, which includes at least two stretchable elastic bands located at the front and rear ends of the diaper respectively.

[0020] It should be noted that by setting elastic bands at the front and rear ends, it can ensure the tight fit of the diaper around the baby's waist, reducing the risk of side leakage caused by looseness. Moreover, the elastic bands can stretch freely according to the baby's movements, ensuring that the diaper still fits during activities and will not bring a sense of restraint to the baby, improving the comfort of the baby during wearing.

[0021] Advantages of the present utility model:

[0022] The comfortable diaper with anti-side leakage provided by the present utility model reduces the pressure on the thighs through the flat strip-shaped anti-leakage strip, making the baby feel more comfortable during use, reducing the sense of compression between the anti-leakage strip and the thighs, and avoiding possible marks left after long-term wearing; the anti-leakage strip is made of breathable fabric, ensuring good breathability and helping to reduce the occurrence of skin problems; using soft non-woven fabric as the surface layer can reduce the friction between the diaper and the baby's skin and improve the wearing comfort; the tensioning strip can generate tension in response to the expansion of the absorbent core layer, prompting the anti-leakage strip to shrink and roll, thereby effectively closing the gap between the side and the skin; through the pulling of the tensioning strip, the anti-leakage strip can be automatically adjusted to increase the thickness, effectively preventing liquid side leakage; filling the absorbent core material in the anti-leakage strip helps to absorb excess liquid during the shrinking process of the anti-leakage strip and increase the effective thickness of the anti-leakage strip; the elastic waistband structure can ensure the tight fit of the diaper around the baby's waist, reducing the risk of side leakage caused by looseness. Brief Description of the Drawings

[0023] Figure 1 It is a three-dimensional schematic diagram of a comfortable diaper with anti-side leakage according to Embodiment 1 of the present utility model.

[0024] Figure 2 It is an exploded state diagram of a comfortable diaper with anti-side leakage according to Embodiment 1 of the present utility model.

[0025] Figure 3 It is a schematic diagram of the installation structure of the anti-leakage partition strip according to Embodiment 1 of the present utility model.

[0026] Figure 4 It is a schematic diagram of the connection structure between the anti-leakage strip and the tensioning strip according to Embodiment 1 of the present utility model.

[0027] Figure 5 It is a schematic diagram of the shrinking state structure of the anti-leakage strip according to Embodiment 1 of the present utility model.

[0028] In the figure: 1. Diaper body; 11. Surface layer; 12. Absorbent core layer; 13. Leak - proof bottom layer; 2. Leak - proof side edge; 21. Leak - proof strip; 22. Tightening strip; 3. Elastic waistband structure.

[0029] It should be noted that these drawings and textual descriptions do not aim to limit the scope of the concept of the present utility model in any way, but rather to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0031] Embodiment 1

[0032] As Figures 1 - 5 shown, a leak - proof and comfortable diaper includes: a diaper body 1, the diaper body 1 includes a surface layer 11, an absorbent core layer 12, and a leak - proof bottom layer 13 arranged in sequence from top to bottom, and leak - proof side edges 2 are sewn on both sides of the diaper surface layer 11;

[0033] The leak - proof side edge 2 includes a leak - proof strip 21 and a tightening strip 22. The leak - proof strip 21 is integrally in a flat strip shape and is respectively arranged on both sides of the surface layer 11; a plurality of tightening strips 22 are arranged across the leak - proof bottom layer 13 between the absorbent core layer 12 and the leak - proof bottom layer 13; both ends of the tightening strip 22 are respectively connected to the corresponding leak - proof strips 21 on both sides, and the tightening strip 22 can pull the leak - proof strip 21 through the expansion of the absorbent core layer 12, and the leak - proof strip 21 can be axially shrunk and curled along the tightening strip 22 under the pull of the tightening strip 22.

[0034] The leak - proof strip 21 is formed by folding and bonding breathable fabrics, and is respectively connected to the leak - proof bottom layer 13 and the surface layer 11 of the diaper. There is a gap for the tightening strip 22 to pass through between the folded side edges of the leak - proof strip 21. The end of the tightening strip 22 passes through the gap between the folded side edges and is connected to the bent part of the leak - proof strip 21, and can pull the bent part towards the folded side edges through the tightening strip 22.

[0035] The leak - proof strip 21 is filled with absorbent core material.

[0036] There are three tension strips 22, and the three tension strips 22 are evenly distributed longitudinally along the diaper between the absorbent core layer 12 and the leak-proof bottom layer 13, and at least one tension strip 22 is located in the middle of the absorbent core layer 12, and the other two are respectively located at the front and rear of the absorbent core layer 12.

[0037] The surface layer 11 is made of a soft non-woven fabric material.

[0038] The diaper body 1 further includes an elastic waistband structure 3, and the elastic waistband structure 3 includes two stretchable elastic bands, which are respectively located at the front end and the rear end of the diaper.

[0039] The working principle and usage method of a leak-proof and comfortable diaper in this embodiment:

[0040] A leak-proof and comfortable diaper provided in this embodiment, the leak-proof strip 21 is integrally flat strip-shaped, formed by folding and bonding a breathable fabric, and is respectively arranged on both sides of the diaper surface layer 11. This flat strip-shaped design can reduce the pressure on the baby's thighs, making the baby feel more comfortable during use, reducing the sense of compression between the leak-proof strip 21 and the thighs, and avoiding possible marks left after long-term wearing; the leak-proof strip 21 is made of a breathable fabric, ensuring good breathability and helping to reduce the occurrence of skin problems; using a soft non-woven fabric as the surface layer 11 can reduce the friction between the diaper and the baby's skin and improve the wearing comfort; both ends of the tension strip 22 are respectively connected to the corresponding leak-proof strips 21 on both sides, and the tension strip 22 can pull the leak-proof strip 21 through the expansion of the absorbent core layer 12. When the absorbent core layer 12 starts to absorb liquid and expand, the tension strip 22 can generate a pulling force in response to the expansion of the absorbent core layer 12, prompting the leak-proof strip 21 to shrink and roll, thereby effectively closing the gap between the side and the skin, and through the pulling of the tension strip 22, the leak-proof strip 21 can be automatically adjusted to increase the thickness, effectively preventing liquid from leaking sideways; the leak-proof strip 21 is filled with absorbent core materials such as superabsorbent polymer (SAP), wood pulp, etc. When the liquid contacts the leak-proof strip 21, the absorbent core materials can quickly absorb the liquid. During the shrinking and rolling process of the leak-proof strip 21, these materials will further absorb the excess liquid, increasing the effective thickness of the leak-proof strip 21, thereby more effectively closing the gap between the side and the skin and preventing liquid from leaking sideways; by providing the elastic waistband structure 3 at the front end and the rear end, it can ensure the tight fit of the diaper around the baby's waist, reduce the risk of side leakage caused by loosening, and the elastic waistband structure 3 can freely stretch according to the baby's activities, ensuring that the diaper still fits during the activity process, without bringing a sense of restraint to the baby, and improving the comfort of the baby during wearing.

[0041] In use, open the package to ensure that the diaper is in a fully unfolded state. Place the diaper under the baby, ensuring that the surface layer 11 faces the baby's body. Pull both the front end and the rear end of the diaper up to the baby's waist to ensure a comfortable fit, and then fix it through the elastic waistband structure 3 to complete the wearing. When the absorbent core layer 12 starts to absorb liquid and expand, the tensioning strip 22 can effectively cause the leak-proof strip 21 to shrink and roll, thereby closing the gap between the side and the skin.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solution of the present invention, not to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "upper end", "lower end", "upper surface", "lower surface", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A leak-proof and comfortable disposable diaper, comprising: Diaper body (1), said diaper body (1) comprising a surface layer (11), an absorbent core layer (12), and a leak-proof bottom layer (13) provided in sequence from top to bottom. Leak-proof side edges (2) are sewn on both sides of the diaper surface layer (11); characterized in that: The leak-proof side edges (2) include leak-proof strips (21) and tensioning strips (22). The leak-proof strips (21) are integrally flat strips and are respectively provided on both sides of the surface layer (11); a number of tensioning strips (22) are provided across the leak-proof bottom layer (13) between the absorbent core layer (12) and the leak-proof bottom layer (13); both ends of the tensioning strips (22) are respectively connected to the corresponding leak-proof strips (21) on both sides, and the tensioning strips (22) can pull the leak-proof strips (21) through the expansion of the absorbent core layer (12), and the leak-proof strips (21) can be axially curled along the tensioning strips (22) by the pulling of the tensioning strips (22).

2. The comfortable diaper with anti-leakage function as claimed in claim 1, wherein: The leak-proof strips (21) are formed by folding and bonding breathable fabrics, and are respectively connected to the leak-proof bottom layer (13) and the surface layer (11) of the diaper. A gap for the tensioning strips (22) to pass through is left between the folded sides of the leak-proof strips (21). The ends of the tensioning strips (22) pass through the gap between the folded sides and are connected to the bent parts of the leak-proof strips (21), and the bent parts can be pulled towards the folded sides by the tensioning strips (22).

3. The comfortable diaper with leak prevention according to claim 2, characterized in that: The leak-proof strips (21) are filled with absorbent core materials.

4. The comfortable diaper with leak prevention according to claim 1, characterized in that: There are three tensioning strips (22). The three tensioning strips (22) are evenly distributed longitudinally of the diaper between the absorbent core layer (12) and the leak-proof bottom layer (13), and at least one tensioning strip (22) is located in the middle of the absorbent core layer (12), and the other two are respectively located at the front and rear of the absorbent core layer (12).

5. The comfortable diaper with anti-side leakage as claimed in claim 1, wherein: The surface layer (11) is made of a soft non-woven fabric material.

6. The comfortable diaper with anti-side leakage according to claim 1, wherein: The diaper body (1) further includes an elastic waistband structure (3). The elastic waistband structure (3) includes at least two stretchable elastic bands, which are respectively located at the front end and the rear end of the diaper.

Citation Information

Patent Citations

  • Leakage-proof paper diaper with partition edges

    CN221534384U