Paper diaper with three-dimensional anti-side-leakage partition edges

Abstract

The utility model discloses a paper diaper with three-dimensional anti-side-leakage separating edges, a paper diaper body comprises a waistline area, an absorption area and an anti-side-leakage area, the end of the absorption area and the end of the anti-side-leakage area are both clamped in the waistline area, and the two sides of a single non-woven fabric layer are integrally folded, so that the paper diaper is formed. The first three-dimensional partition edge and the second three-dimensional partition edge with the M-shaped sections are formed, the first three-dimensional partition edge and the second three-dimensional partition edge are each provided with an inner-layer partition edge structure and an outer-layer partition edge structure, and compared with a traditional single-layer three-dimensional partition edge, the anti-side-leakage film and the elastic spandex filaments are clamped in different interlayers of the three-dimensional partition edges respectively, so that the anti-side-leakage performance is good. Wherein the elasticity of the top elastic spandex filaments is larger than that of the bottom elastic spandex filaments, so that a blocking area for urine is formed between the bottom of the leakage-proof partition edge and the absorption area, and the middle part of the paper diaper can be effectively prevented from absorbing and drooping by utilizing the elastic spandex filaments to collect and block urine; and the outer edge is not attached to the body to form a gap, so that the bed sheet and the quilt cover are stained due to side leakage.

Description

Technical Field

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

[0002] Disposable diapers are single-use products made from materials such as non-woven fabric, toilet paper, fluff pulp, superabsorbent polymer (SAP), PE film, and elastic bands. They come in two types: one for infants and one for adults. They are highly absorbent, dry and breathable, convenient and hygienic. In current technology, disposable diapers generally consist of a surface cover layer, an absorbent core layer, and a bottom layer. The absorbent core layer is located between the surface cover layer and the bottom layer. The surface cover layer fits tightly against the baby's body, the absorbent core layer absorbs and stores urine, and the bottom layer prevents urine leakage.

[0003] Infants urinate frequently during activity, making side leakage a common problem with tape-type diapers. Patent application CN222426450U discloses a leak-proof side panel structure for diapers. This design features leak-proof side panels on both sides of the diaper body, each consisting of an inner and outer waterproof fabric layer connected by elastic bands. The inner and outer waterproof fabric layers are bonded together. The leak-proof side panels include folding sections located on the front and back waistbands of the diaper body. While this design effectively prevents side leakage, some issues remain during use.

[0004] The reasons why side leakage may still occur in this solution are mainly concentrated in the following aspects after analysis: First, during use, prolonged activity can cause the adhesive edges to loosen, become misaligned, or shift, making the absorbent core of the diaper increasingly less snug against the infant, and the loosening of the edges makes side leakage more likely to occur; Second, once the diaper absorbs urine, its weight will increase, especially in the middle, causing it to sag downwards, resulting in gaps between the outer edge and the body, which in turn causes side leakage. Utility Model Content

[0005] To address the technical deficiencies in the background art, this utility model proposes a three-dimensional leak-proof diaper with side panels, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0006] A three-dimensional leak-proof diaper includes a diaper body, the diaper body including a waistband area, an absorbent area and a leak-proof area, the waistband area including a front waistband area and a back waistband area respectively disposed at both ends of the absorbent area, and the ends of the absorbent area and the leak-proof area are both sandwiched in the waistband area;

[0007] Both sides of the absorption area are provided with anti-leakage areas. The anti-leakage areas on both sides are formed by folding a single non-woven fabric layer. The anti-leakage area includes a three-dimensional partition, an anti-leakage membrane and elastic spandex filaments. The three-dimensional partition is formed by at least two layers of non-woven fabric. The anti-leakage membrane and elastic spandex filaments are sandwiched in the three-dimensional partition.

[0008] The absorption area includes a top layer, an absorbent core layer, and a leak-proof bottom layer arranged sequentially from top to bottom. The non-woven fabric layer is sandwiched between the absorbent core layer and the leak-proof bottom layer, and the lower edge of the anti-side leakage membrane is sandwiched between the non-woven fabric layer and the leak-proof bottom layer.

[0009] As an improvement to the above solution, the anti-leakage zone includes a first anti-leakage zone and a second anti-leakage zone. One side edge of the nonwoven fabric layer is folded to form a first three-dimensional partition edge corresponding to the position of the first anti-leakage zone, and the other side edge is folded to form a second three-dimensional partition edge corresponding to the position of the second anti-leakage zone.

[0010] As an improvement to the above solution, the nonwoven fabric layer is folded three times along its side edge corresponding to the first anti-leakage zone to form a first three-dimensional partition with an M-shaped cross-section. The first three-dimensional partition includes a first inner partition near the surface layer and a first outer partition near the outside.

[0011] As an improvement to the above solution, the nonwoven fabric layer is folded three times along its side edge corresponding to the second anti-leakage zone to form a second three-dimensional partition with an M-shaped cross-section. The second three-dimensional partition includes a second inner partition near the surface layer and a second outer partition near the outside.

[0012] As an improvement to the above solution, the end faces of the first inner layer partition and the first outer layer partition are bonded and fixed together, and a first anti-leakage film is sandwiched inside the first inner layer partition, with the lower edge of the first anti-leakage film extending toward the middle of the diaper body.

[0013] As an improvement to the above solution, a first elastic spandex filament and a second elastic spandex filament are sandwiched inside the first outer layer partition. The first elastic spandex filament is sandwiched at the upper edge of the first outer layer partition, and the second elastic spandex filament is sandwiched near the lower edge of the first outer layer partition.

[0014] As an improvement to the above solution, the end faces of the second inner layer partition and the second outer layer partition are bonded and fixed together, and a second anti-leakage film is sandwiched inside the second inner layer partition, with the lower edge of the second anti-leakage film extending toward the middle of the diaper body.

[0015] As an improvement to the above solution, a third elastic spandex filament and a fourth elastic spandex filament are sandwiched inside the second outer layer partition. The third elastic spandex filament is sandwiched at the upper edge of the second outer layer partition, and the fourth elastic spandex filament is sandwiched near the lower edge of the second outer layer partition.

[0016] The beneficial effects of this utility model are as follows: by folding the two sides of a single non-woven fabric layer together, a first three-dimensional partition and a second three-dimensional partition with an M-shaped cross-section are formed. Both the first and second three-dimensional partitions have an inner and outer double-layer partition structure, which has better leak-proof performance compared with the traditional single-layer three-dimensional partition. The anti-leakage film and elastic spandex yarn are respectively sandwiched in different layers of the three-dimensional partition. The elastic spandex yarn at the top has a greater elasticity than that at the bottom, thereby forming a blocking area for urine between the bottom of the leak-proof partition and the absorption area. By using the elastic spandex yarn to bind and block, it can effectively prevent the middle of the diaper from sag and causing the outer edge to not fit the body, resulting in gaps and side leakage that stains the sheets and duvet covers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the end face structure of the main body of the diaper of this utility model.

[0018] Figure 2 This is a schematic diagram of the thickness direction of the main body of the diaper according to this utility model.

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0020] Wherein: 1-Waist area, 11-Front waist area, 12-Back waist area, 2-Absorbent area, 21-Top layer, 22-Absorbent core layer, 23-Leak-proof bottom layer, 3-Leak-proof side area, 31-First leak-proof side area, 32-Second leak-proof side area, 4-First three-dimensional partition, 41-First inner partition, 42-First outer partition, 43-First leak-proof membrane, 44-First elastic spandex filament, 45-Second elastic spandex filament, 5-Second three-dimensional partition, 51-Second inner partition, 52-Second outer partition, 53-Second leak-proof membrane, 54-Third elastic spandex filament, 55-Fourth elastic spandex filament. 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] A three-dimensional leak-proof diaper includes a diaper body, the diaper body including a waist area 1, an absorbent area 2 and a leak-proof area 3, the waist area 1 including a front waist area 11 and a back waist area 12 respectively disposed at both ends of the absorbent area 2, and the ends of the absorbent area 2 and the leak-proof area 3 are both sandwiched in the waist area 1.

[0023] Both sides of the absorption area 2 are provided with anti-leakage areas 3. The anti-leakage areas 3 on both sides are formed by folding a single non-woven fabric layer. The anti-leakage area 3 includes a three-dimensional partition, an anti-leakage membrane and elastic spandex filaments. The three-dimensional partition is formed by at least two layers of non-woven fabric. The anti-leakage membrane and elastic spandex filaments are sandwiched in the three-dimensional partition.

[0024] In the technical solution of the diaper body of this utility model, the waist area 1 includes a front waist area 11 and a back waist area 12, which respectively fit the front and back skin surfaces of the user. The two sides of the front waist area 11 and the back waist area 12 are connected by Velcro. The two ends of the absorbent area 2 and the leak-proof area 3 are respectively clamped in the front waist area 11 and the back waist area 12.

[0025] Furthermore, in the above scheme, the absorption zone 2 includes a top layer 21, an absorbent core layer 22, and a leak-proof bottom layer 23 arranged sequentially from top to bottom. The non-woven fabric layer is sandwiched between the absorbent core layer 22 and the leak-proof bottom layer 23. During urine permeation, it passes through the top layer 21, the absorbent core layer 22, and the non-woven fabric layer in sequence, and is finally blocked by the leak-proof bottom layer 23. The lower edge of the side leakage prevention membrane is sandwiched between the non-woven fabric layer and the leak-proof bottom layer 23. The side leakage prevention membrane and the leak-proof bottom layer 23 form a three-dimensional leak-proof structure.

[0026] Furthermore, in the above scheme, the anti-leakage zone 3 includes a first anti-leakage zone 31 and a second anti-leakage zone 32. One side edge of the non-woven fabric layer is folded to form a first three-dimensional partition 4 corresponding to the position of the first anti-leakage zone 31, and the other side edge is folded to form a second three-dimensional partition 5 corresponding to the position of the second anti-leakage zone 32. The bottom of the first three-dimensional partition 4 is bonded and fixed to the anti-leakage bottom layer 23, and the bottom of the second three-dimensional partition 5 is bonded and fixed to the anti-leakage bottom layer 23. Thus, the bonding structure of the first three-dimensional partition 4, the second three-dimensional partition 5 and the anti-leakage bottom layer 23 forms a three-dimensional anti-leakage structure, thereby forming a blocking area for urine between the bottom of the anti-leakage partition and the absorption zone 2.

[0027] In the technical solution of the first anti-leakage zone 31 of this utility model, the non-woven fabric layer is folded three times along the side edge corresponding to the position of the first anti-leakage zone 31 to form a first three-dimensional partition 4 with an M-shaped cross section. The first three-dimensional partition 4 is a double-layer structure, wherein the first three-dimensional partition 4 includes a first inner partition 41 near the surface layer 21 and a first outer partition 42 near the outside.

[0028] The nonwoven fabric layer is folded three times along the side edge corresponding to the second anti-leakage zone 32 to form a second three-dimensional partition 5 with an M-shaped cross section. The second three-dimensional partition 5 has a double-layer structure and includes a second inner partition 51 near the surface layer 21 and a second outer partition 52 near the outside.

[0029] Furthermore, in the above solution, the end faces of the first inner layer partition 41 and the first outer layer partition 42 are bonded and fixed together, and a first anti-leakage film 43 is sandwiched in the first inner layer partition 41, with the lower edge of the first anti-leakage film 43 extending toward the middle of the diaper body.

[0030] Furthermore, in the above scheme, the end faces of the second inner layer partition 51 and the second outer layer partition 52 are bonded and fixed together, and a second anti-leakage film 53 is sandwiched inside the second inner layer partition 51, with the lower edge of the second anti-leakage film 53 extending toward the middle of the diaper body.

[0031] It should be noted that the leak-proof bottom layer 23 includes a PE film and a water-repellent non-woven fabric. The PE film is disposed inside the water-repellent non-woven fabric. The upper edge and middle of the first anti-side leakage membrane 43 are sandwiched in the first inner layer partition 41, and its lower edge is bonded and fixed to the PE film to form a leak-proof structure. The upper edge and middle of the second anti-side leakage membrane 53 are sandwiched in the second inner layer partition 51, and its lower edge is bonded and fixed to the PE film to form a leak-proof structure. After the first anti-side leakage membrane 43 and the second anti-side leakage membrane 53 absorb and sink in the leak-proof bottom layer 23, they can maintain a tight connection between the three-dimensional partition and the leak-proof bottom layer 23, thus preventing liquid from seeping between the PE film and the anti-side leakage membrane.

[0032] Furthermore, in the above solution, a first elastic spandex filament 44 and a second elastic spandex filament 45 are sandwiched inside the first outer layer partition 42. The first elastic spandex filament 44 is sandwiched at the upper edge of the first outer layer partition 42, and the second elastic spandex filament 45 is sandwiched near the lower edge of the first outer layer partition 42. The elasticity of the first elastic spandex filament 44 is greater than that of the second elastic spandex filament 45. In use, the first elastic spandex filament 44 can better conform to the inner thigh of the user. The second elastic spandex filament 45 has less elasticity, which provides sufficient space for the absorbent core layer 22 to absorb liquid and prevent it from falling. The first elastic spandex filament 44 keeps the first three-dimensional partition 4 in contact with the human body, effectively preventing urine from seeping out along the gap between the first three-dimensional partition 4 and the human body.

[0033] Furthermore, in the above scheme, a third elastic spandex filament 54 and a fourth elastic spandex filament 55 are sandwiched inside the second outer layer partition 52. The third elastic spandex filament 54 is sandwiched at the upper edge of the second outer layer partition 52, and the fourth elastic spandex filament 55 is sandwiched near the lower edge of the second outer layer partition 52, which is consistent with the principle of the elastic spandex filament in the first three-dimensional partition 4. The elasticity of the third elastic spandex filament 54 is greater than that of the fourth elastic spandex filament 55. In use, the third elastic spandex filament 54 can better conform to the inner thigh of the user. When the fourth elastic spandex filament 55 is stretched, the third elastic spandex filament 54 can still maintain the second three-dimensional leak-proof partition in close contact with the human body.

[0034] 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 three-dimensional leak-proof diaper with side panels, characterized in that, The diaper body includes a waist area (1), an absorbent area (2) and a leak-proof area (3). The waist area (1) includes a front waist area (11) and a back waist area (12) respectively located at both ends of the absorbent area (2). The ends of the absorbent area (2) and the leak-proof area (3) are both sandwiched in the waist area (1). Both sides of the absorption area (2) are provided with anti-leakage areas (3). The anti-leakage areas (3) on both sides are formed by folding a single non-woven fabric layer. The anti-leakage area (3) includes a three-dimensional partition, an anti-leakage membrane and elastic spandex yarn. The three-dimensional partition is formed by at least two layers of non-woven fabric. The anti-leakage membrane and elastic spandex yarn are sandwiched in the three-dimensional partition. The absorption area (2) includes a top layer (21), an absorption core layer (22), and a leak-proof bottom layer (23) arranged sequentially from top to bottom. The non-woven fabric layer is sandwiched between the absorption core layer (22) and the leak-proof bottom layer (23), and the lower edge of the leak-proof membrane is sandwiched between the non-woven fabric layer and the leak-proof bottom layer (23).

2. The diaper with three-dimensional leak-proof side panels according to claim 1, characterized in that, The anti-leakage zone (3) includes a first anti-leakage zone (31) and a second anti-leakage zone (32). One side edge of the nonwoven fabric layer is folded to form a first three-dimensional partition (4) corresponding to the position of the first anti-leakage zone (31), and the other side edge is folded to form a second three-dimensional partition (5) corresponding to the position of the second anti-leakage zone (32).

3. The diaper with three-dimensional leak-proof side panels according to claim 2, characterized in that, The nonwoven fabric layer is folded three times along the side edge corresponding to the first anti-leakage area (31) to form a first three-dimensional partition (4) with an M-shaped cross section. The first three-dimensional partition (4) includes a first inner partition (41) near the surface layer (21) and a first outer partition (42) near the outside.

4. The diaper with three-dimensional leak-proof side panels according to claim 2, characterized in that, The nonwoven fabric layer is folded three times along the side edge corresponding to the second anti-leakage zone (32) to form a second three-dimensional partition (5) with an M-shaped cross section. The second three-dimensional partition (5) includes a second inner partition (51) near the surface layer (21) and a second outer partition (52) near the outside.

5. The diaper with three-dimensional leak-proof side panels according to claim 3, characterized in that, The end faces of the first inner layer partition (41) and the first outer layer partition (42) are bonded and fixed together. A first anti-leakage film (43) is sandwiched inside the first inner layer partition (41), and the lower edge of the first anti-leakage film (43) extends toward the middle of the diaper body.

6. The diaper with three-dimensional leak-proof side panels according to claim 3, characterized in that, The first outer layer partition (42) contains a first elastic spandex filament (44) and a second elastic spandex filament (45). The first elastic spandex filament (44) is located at the upper edge of the first outer layer partition (42), and the second elastic spandex filament (45) is located near the lower edge of the first outer layer partition (42).

7. The diaper with three-dimensional leak-proof side panels according to claim 4, characterized in that, The end faces of the second inner layer partition (51) and the second outer layer partition (52) are bonded and fixed together. A second anti-leakage film (53) is sandwiched inside the second inner layer partition (51). The lower edge of the second anti-leakage film (53) extends toward the middle of the diaper body.

8. The diaper with three-dimensional leak-proof side panels according to claim 4, characterized in that, The second outer layer partition (52) contains a third elastic spandex filament (54) and a fourth elastic spandex filament (55). The third elastic spandex filament (54) is located at the upper edge of the second outer layer partition (52), and the fourth elastic spandex filament (55) is located near the lower edge of the second outer layer partition (52).

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