Paper diaper with double side leakage prevention partition edges

By setting double leak-proof side panels on both sides of the diaper and sandwiching multiple layers of water-repellent layers and elastic spandex yarns in the chamber structure, the problem of urine leakage during the use of diapers is solved, and a stronger leak-proof effect is achieved.

CN224193670UActive Publication Date: 2026-05-05GUANGDONG MAXIER SANITARY PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG MAXIER SANITARY PROD CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing disposable diapers are prone to leaking to the sides during use, resulting in incomplete absorption by the leak-proof side panels, and their leak-proof effect is poor when the baby is active.

Method used

The diaper features a dual leak-proof design, with first and second leak-proof barriers on both sides, each sandwiching multiple layers of water-repellent material and elastic spandex filaments to form a multi-chamber structure that enhances connection strength and leak-proof performance.

Benefits of technology

It effectively prevents urine leakage and improves the diaper's leak-proof performance, especially maintaining a good fit and leak-proof effect when the baby is frequently active.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224193670U_ABST
    Figure CN224193670U_ABST
Patent Text Reader

Abstract

The utility model discloses a paper diaper with double anti-side-leakage partition edges, a paper diaper main body comprises a surface layer, an absorption layer and an anti-leakage bottom layer, a first anti-leakage partition edge and a second anti-leakage partition edge are arranged on two sides of the paper diaper main body, a first water-repellent layer a and a second water-repellent layer a are clamped in the first anti-leakage partition edge, and a second water-repellent layer a is clamped in the second anti-leakage partition edge. Compared with a traditional split type leakage-proof partition edge, the first leakage-proof partition edge and the second leakage-proof partition edge are integrally folded and formed and are provided with at least one water repellent layer, so that the connection strength between the leakage-proof partition edge and the paper diaper body is enhanced, and the leakage-proof partition edge has the advantages that the leakage-proof partition edge and the paper diaper body are integrally folded and formed and are provided with at least one water repellent layer; the side leakage prevention performance of the paper diaper is improved, the first leakage prevention partition edge and the second leakage prevention partition edge have high ductility, under the condition that a user frequently moves, side leakage of urine can be effectively prevented, and all-around protection is provided for the user.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of absorbent product technology, specifically to a double-layer leak-proof diaper with side panels. Background Technology

[0002] With social development and the continuous improvement of people's living standards, diapers have become an indispensable hygiene product in daily life. Generally, a diaper consists of a top layer, an absorbent core, and a leak-proof bottom layer from top to bottom. When a user wears a diaper, it sits on the inner thigh. Due to the pressure from the thighs, the middle section of the diaper tends to wrinkle and become compressed. This compression can cause urine to seep to the sides if not fully absorbed.

[0003] In existing disposable diapers, after a baby urinates, the urine spreads outwards, easily overflowing the absorbent core and flowing towards the leak-proof side panels. These panels act as a barrier against unabsorbed urine. However, the absorbent surface of the leak-proof side panels on the sides of the diaper is small, which can easily lead to incomplete absorption and urine leakage. When urine seeps to the bottom of the leak-proof side panels, it can also affect the connection strength between the leak-proof side panels and the diaper. Since babies are quite active, the leak-proof side panels of the diaper are most easily pulled and deformed when they are active, thus affecting the side leakage prevention effect. Utility Model Content

[0004] To address the technical deficiencies in the background art, this utility model proposes a double-layer anti-leakage side-barrier diaper, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0005] A double leak-proof diaper includes a diaper body with elastic waistbands at both ends. The diaper body includes a top layer, an absorbent layer, and a leak-proof bottom layer. The diaper body has a first leak-proof side panel and a second leak-proof side panel on both sides.

[0006] The first and second leak-proof partitions are formed by folding the two sides of a single sheet of water-repellent nonwoven fabric. The sides of the water-repellent nonwoven fabric are folded to form a first and second leak-proof partition with at least one cavity. The bottom surface of the water-repellent nonwoven fabric is provided with a first water-repellent layer. A first water-repellent layer a is sandwiched in the cavity of the first leak-proof partition, and a first water-repellent layer b is sandwiched in the cavity of the second leak-proof partition.

[0007] The first leak-proof partition is provided with a first elastic spandex filament and a second water-repellent layer on the outer side of the first water-repellent layer, and the second leak-proof partition is provided with a second elastic spandex filament and a third water-repellent layer on the outer side of the first water-repellent layer.

[0008] As an improvement to the above solution, the first leak-proof partition is folded to form a first inner chamber and a first outer chamber arranged vertically side by side, and the second leak-proof partition is folded to form a second inner chamber and a second outer chamber arranged vertically side by side, with the two side edges of the first water-repellent layer extending into the first inner chamber and the second inner chamber, respectively.

[0009] As an improvement to the above solution, the first outer chamber is provided with a first elastic spandex filament and a second water-repellent layer, with the first elastic spandex filament disposed at the top of the first outer chamber.

[0010] As an improvement to the above solution, the second outer chamber is provided with a second elastic spandex filament and a third water-repellent layer. The second elastic spandex filament is disposed at the top of the second outer chamber, and the bottom end of the third water-repellent layer extends between the first water-repellent layer and the leak-proof bottom layer.

[0011] As an improvement to the above solution, a first adhesive strip is provided in the overlapping area of ​​the second water-repellent layer and the first water-repellent layer, and a second adhesive strip is provided in the overlapping area of ​​the third water-repellent layer and the first water-repellent layer.

[0012] As an improvement to the above solution, the leak-proof bottom layer includes a leak-proof bottom membrane and a bottom non-woven fabric arranged from top to bottom. The top surface of the leak-proof bottom membrane is coated with an adhesive layer, and the first water-repellent layer and the leak-proof bottom membrane are bonded and fixed together by the adhesive layer.

[0013] As an improvement to the above solution, the ends of the first and second leak-proof partitions are sandwiched in the elastic waistband, the middle part of the water-repellent nonwoven fabric is sandwiched between the absorbent layer and the leak-proof bottom layer, and the side of the water-repellent nonwoven fabric is folded to form an outwardly extending skirt.

[0014] The beneficial effects of this utility model are as follows: the first leak-proof partition is provided with a first water-repellent layer a and a second water-repellent layer, and the second leak-proof partition is provided with a first water-repellent layer b and a third water-repellent layer. Compared with the traditional split leak-proof partition, the first and second leak-proof partitions are integrally folded and formed and have at least one water-repellent layer, which enhances the connection strength between the leak-proof partition and the diaper body and increases the number of water-repellent material layers of the leak-proof partition, thereby improving the side leakage prevention performance of the diaper. The first and second leak-proof partitions have strong extensibility, which can effectively prevent urine side leakage even when the user is frequently active, providing the user with all-round protection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the thickness direction of the main body structure of the diaper of this utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the end face structure of the main body of the diaper of this utility model.

[0017] Figure 3 This is a schematic diagram of the thickness direction of the main body structure of the diaper of this utility model. Figure 2 .

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 5 for Figure 1 Enlarged schematic diagram of part B in the middle section.

[0020] The diaper consists of: 1. Main body of the diaper; 2. Elastic waistband; 3. Top layer; 4. Absorbent layer; 5. Leak-proof bottom layer; 51. Leak-proof bottom film; 52. Bottom non-woven fabric; 6. First leak-proof side panel; 61. First elastic spandex filament; 62. Second water-repellent layer; 63. First inner chamber; 64. First outer chamber; 7. Second leak-proof side panel; 71. Second elastic spandex filament; 72. Third water-repellent layer; 73. Second inner chamber; 74. Second outer chamber; 8. Water-repellent non-woven fabric; 81. First water-repellent layer a; 811. First water-repellent layer b; 812. First adhesive tape; 82. Second adhesive tape; 83. Skirt; 9. Detailed Implementation

[0021] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0022] like Figures 1 to 5 As shown, a double leak-proof diaper includes a diaper body 1, elastic waistbands 2 at both ends of the diaper body 1, a top layer 3, an absorbent layer 4 and a leak-proof bottom layer 5, and a first leak-proof side panel 6 and a second leak-proof side panel 7 on both sides of the diaper body 1.

[0023] In the technical solution of the elastic waistband 2 of this utility model, the ends of the diaper body 1 are respectively provided with a front waistband and a back waistband. Both sides of the front waistband and the back waistband are provided with connecting parts for fixing the diaper to the user's waist. The width of the front waistband is smaller than the width of the back waistband, so that the diaper body 1 is adapted to the shape of the human body. The front waistband and the back waistband are both formed by folding the skin-friendly non-woven fabric in an inverted U-shape. The two ends of the diaper body 1 are respectively clamped in the cavity formed by folding the front waistband and the back waistband.

[0024] In the technical solution of the diaper body 1 of this utility model, the diaper body 1 includes a top layer 3, an absorbent layer 4 and a leak-proof bottom layer 5 arranged sequentially from top to bottom. The first leak-proof partition 6 and the second leak-proof partition 7 are formed by folding the two sides of a single sheet of water-repellent non-woven fabric 8. The water-repellent non-woven fabric 8 is sandwiched between the absorbent layer 4 and the leak-proof bottom layer 5. The side of the water-repellent non-woven fabric 8 is folded to form the first leak-proof partition 6 and the second leak-proof partition 7 having at least one chamber.

[0025] In one embodiment, the bottom surface of the water-repellent nonwoven fabric 8 is provided with a first water-repellent layer 81. The two sides of the first water-repellent layer 81 extend into the cavities of the first leak-proof partition 6 and the second leak-proof partition 7, respectively. The first water-repellent layer 81 connects the first leak-proof partition 6 and the second leak-proof partition 7 on both sides, providing sufficient traction force to enhance the connection strength between the first leak-proof partition 6, the second leak-proof partition 7 and the diaper body 1, so that the lower edges of the first leak-proof partition 6 and the second leak-proof partition 7 are not easily separated from the diaper body 1 under force.

[0026] In another embodiment, the bottom surface of the water-repellent nonwoven fabric 8 is provided with a first water-repellent layer 81. The first water-repellent layer 81 includes a first water-repellent layer a811 and a first water-repellent layer b812 respectively disposed in the first leak-proof partition 6 and the second leak-proof partition 7. The first water-repellent layer 81 is used to enhance the tensile strength of the first leak-proof partition 6 and the second leak-proof partition 7, so that they have better leak-proof performance and structural strength.

[0027] Furthermore, in the above solution, the first leak-proof partition 6 is provided with a first elastic spandex filament 61 and a second water-repellent layer 62 on the outer side of the first water-repellent layer 81, and the second leak-proof partition 7 is provided with a second elastic spandex filament 71 and a third water-repellent layer 72 on the outer side of the first water-repellent layer 81. In use, the first elastic spandex filament 61 and the second elastic spandex filament 71 lift the leak-proof partition, so that the first leak-proof partition 6 and the second leak-proof partition 7 are attached to the user's groin.

[0028] Furthermore, in the above scheme, the first leak-proof partition 6 is folded to form a vertically parallel first inner chamber 63 and a first outer chamber 64, the second leak-proof partition 7 is folded to form a vertically parallel second inner chamber 73 and a second outer chamber 74, and the first water-repellent layer a811 and the first water-repellent layer b812 are respectively disposed in the first inner chamber 63 and the second inner chamber 73.

[0029] Furthermore, in the above scheme, the first outer cavity 64 is provided with a first elastic spandex filament 61 and a second water-repellent layer 62. The first elastic spandex filament 61 is disposed at the top of the first outer cavity 64, and the bottom end of the second water-repellent layer 62 extends between the first water-repellent layer a811 and the leak-proof bottom layer 5.

[0030] Furthermore, in the above scheme, the second outer chamber 74 is provided with a second elastic spandex filament 71 and a third water-repellent layer 72. The second elastic spandex filament 71 is disposed at the top of the second outer chamber 74, and the bottom end of the third water-repellent layer 72 extends between the first water-repellent layer b812 and the leak-proof bottom layer 5.

[0031] It should be noted that the first elastic spandex filament 61 pulls up the first outer cavity 64, and the second elastic spandex filament 71 pulls up the second outer cavity 74. The first inner cavity 63 and the second inner cavity 73 are respectively bonded to the inner sides of the first outer cavity 64 and the second outer cavity 74. When the first outer cavity 64 and the second outer cavity 74 are pulled, the first inner cavity 63 and the second inner cavity 73 are simultaneously pulled upward by force.

[0032] Furthermore, the first water-repellent layer a811 is disposed in the first leak-proof partition 6, forming a double-layer leak-proof structure with the second water-repellent layer 62, and the first water-repellent layer b812 is disposed in the second leak-proof partition 7, forming a double-layer leak-proof structure with the third water-repellent layer 72, thereby improving the side leakage prevention performance of the diaper and making the connection between the first leak-proof partition 6 and the second leak-proof partition 7 and the diaper body 1 tighter.

[0033] Furthermore, in the above scheme, the overlapping area of ​​the second water-repellent layer 62 and the first water-repellent layer 81 is provided with a first adhesive strip 82, and the overlapping area of ​​the third water-repellent layer 72 and the first water-repellent layer 81 is provided with a second adhesive strip 83.

[0034] The lower edge of the second water-repellent layer 62 is bonded and fixed to the first water-repellent layer a811 via the first adhesive tape 82, which enhances the extensibility of the first leak-proof partition 6. The lower edge of the third water-repellent layer 72 is bonded and fixed to the first water-repellent layer b812 via the second adhesive tape 83, which enhances the extensibility of the second leak-proof partition 7. This makes the first leak-proof partition 6 and the second leak-proof partition 7 have better resistance to deformation, and maintains a good close-fitting and leak-proof effect even when the baby is frequently moving.

[0035] Furthermore, in the above solution, the leak-proof bottom layer 5 includes a leak-proof bottom film 51 and a bottom non-woven fabric 52 arranged from top to bottom. The top surface of the leak-proof bottom film 51 is coated with an adhesive layer. The first water-repellent layer 81 and the leak-proof bottom film 51 are bonded and fixed together by the adhesive layer. After the first water-repellent layer 81 and the leak-proof bottom film 51 are combined, they provide a double-layer leak-proof effect for the bottom of the diaper body 1.

[0036] Furthermore, in the above scheme, the ends of the first leak-proof partition 6 and the second leak-proof partition 7 are sandwiched in the elastic waistband 2, the middle part of the water-repellent nonwoven fabric 8 is sandwiched between the absorbent layer 4 and the leak-proof bottom layer 5, and the side of the water-repellent nonwoven fabric 8 is folded to form an outwardly extending skirt edge 9.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A double-layer leak-proof diaper with side panels, characterized in that, The diaper includes a main body (1), with elastic waistbands (2) at both ends. The main body (1) includes a top layer (3), an absorbent layer (4), and a leak-proof bottom layer (5). The main body (1) has a first leak-proof side panel (6) and a second leak-proof side panel (7) on both sides. The first leak-proof partition (6) and the second leak-proof partition (7) are formed by folding a single sheet of water-repellent nonwoven fabric (8). The side of the water-repellent nonwoven fabric (8) is folded to form the first leak-proof partition (6) and the second leak-proof partition (7) having at least one cavity. The bottom surface of the water-repellent nonwoven fabric (8) is provided with a first water-repellent layer (81). The cavity of the first leak-proof partition (6) is provided with a first water-repellent layer a (811), and the cavity of the second leak-proof partition (7) is provided with a first water-repellent layer b (812). The first leak-proof partition (6) is sandwiched with a first elastic spandex filament (61) and a second water-repellent layer (62) on the outside of the first water-repellent layer (81), and the second leak-proof partition (7) is sandwiched with a second elastic spandex filament (71) and a third water-repellent layer (72) on the outside of the first water-repellent layer (81).

2. The double-layer leak-proof diaper according to claim 1, characterized in that, The first leak-proof partition (6) is folded to form a first inner chamber (63) and a first outer chamber (64) arranged vertically side by side, and the second leak-proof partition (7) is folded to form a second inner chamber (73) and a second outer chamber (74) arranged vertically side by side.

3. The double-layer leak-proof diaper according to claim 2, characterized in that, The first outer chamber (64) is provided with a first elastic spandex filament (61) and a second water-repellent layer (62). The first elastic spandex filament (61) is located at the top of the first outer chamber (64), and the bottom end of the second water-repellent layer (62) extends between the first water-repellent layer (81) and the leak-proof bottom layer (5).

4. The double-layer leak-proof diaper according to claim 2, characterized in that, The second outer chamber (74) is provided with a second elastic spandex filament (71) and a third water-repellent layer (72). The second elastic spandex filament (71) is disposed at the top of the second outer chamber (74), and the bottom end of the third water-repellent layer (72) extends between the first water-repellent layer (81) and the leak-proof bottom layer (5).

5. The double-layer leak-proof diaper according to claim 1, characterized in that, The second water-repellent layer (62) and the first water-repellent layer (81) overlap with each other and are provided with a first adhesive strip (82), and the third water-repellent layer (72) and the first water-repellent layer (81) overlap with each other and are provided with a second adhesive strip (83).

6. The double-layer leak-proof diaper according to claim 1, characterized in that, The leak-proof bottom layer (5) includes a leak-proof bottom membrane (51) and a bottom non-woven fabric (52) arranged from top to bottom. The top surface of the leak-proof bottom membrane (51) is coated with an adhesive layer, and the first water-repellent layer (81) and the leak-proof bottom membrane (51) are bonded and fixed together by the adhesive layer.

7. The double-layer leak-proof diaper according to claim 1, characterized in that, The ends of the first leak-proof partition (6) and the second leak-proof partition (7) are sandwiched in the elastic waistband (2), the middle part of the water-repellent nonwoven fabric (8) is sandwiched between the absorbent layer (4) and the leak-proof bottom layer (5), and the side of the water-repellent nonwoven fabric (8) is folded to form an outwardly extending skirt (9).