Disposable sanitary article with leakage prevention
By incorporating a combination of side-leakage prevention, back-leakage prevention, and front-leakage prevention layers into disposable hygiene products, and utilizing a combination of sealant and elastic layers, the leakage problem of infant diaper products has been solved, achieving effective leakage prevention and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ENOULITE HLDG GRP CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-19
Smart Images
Figure CN224370113U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene products technology, specifically to a disposable hygiene product with leak-proof function. Background Technology
[0002] Disposable absorbent products are widely used in the personal care field, such as baby diapers, adult incontinence products, sanitary napkins, and nursing pads. Existing disposable absorbent products typically consist of a multi-layered structure, including a top sheet, a bottom sheet, and an absorbent core located between the two. The absorbent core often contains absorbent polymer materials.
[0003] Most existing baby diaper products have left and right side 3D protective barriers to prevent side leakage, but most do not have front and back 3D protective barriers to prevent front and back leakage. This means that the leakage prevention needs of infants when lying flat or prone are not taken into account, which leads to the possibility of back leakage when infants are lying flat and front leakage when they are prone when using existing baby diaper products.
[0004] In summary, there is a need to develop a disposable hygiene product with leak-proof function to address the lack of front and back vents in existing baby diaper products, which leads to back leakage when infants are lying flat and front leakage when they are lying prone. Utility Model Content
[0005] The purpose of this utility model is to provide a disposable sanitary product with leak-proof function, and the specific technical solution is as follows:
[0006] A disposable sanitary product with leak-proof function includes a bottom layer, an absorbent core, a side-leakage prevention combination layer, and a back-leakage prevention combination layer; the absorbent core is disposed on the bottom layer; there are two sets of side-leakage prevention combination layers, which are arranged side by side on both sides of the absorbent core in the length direction; a gap is provided between the two side-leakage prevention combination layers; the back-leakage prevention combination layer is disposed at the rear end of the absorbent core in the length direction and is connected to the two side-leakage prevention combination layers.
[0007] Optionally, the back leakage prevention composite layer includes a first back leakage prevention layer, a back leakage prevention elastic layer, and a second back leakage prevention layer stacked on the two back leakage prevention composite layers;
[0008] On the edge of the anti-back leakage composite layer near the rear end of the absorbent core, a first sealant layer is provided between the first anti-back leakage layer and the second anti-back leakage layer, and between the first anti-back leakage layer and the anti-side leakage composite layer.
[0009] On the edge of the anti-back leakage composite layer away from the rear end of the absorbent core, an anti-back leakage elastic layer is provided between the first anti-back leakage layer and the second anti-back leakage layer, and is movably disposed relative to the anti-side leakage composite layer;
[0010] A second sealant layer is provided on both sides of the anti-back leakage composite layer along the length direction of the absorbent core, between the first anti-back leakage layer and the second anti-back leakage layer, and between the first anti-back leakage layer and the anti-side leakage composite layer.
[0011] Optionally, the anti-side leakage composite layer includes a three-dimensional anti-leakage layer disposed on the absorbent core; the three-dimensional anti-leakage layer includes a first anti-leakage segment and a second anti-leakage segment connected together; the first anti-leakage segment is disposed parallel to the absorbent core; an anti-side leakage elastic layer is disposed on the second anti-leakage segment; the second anti-leakage segment is disposed vertically on the first anti-leakage segment and is connected to the first anti-side leakage layer.
[0012] Optionally, the first leak-proof section and the second leak-proof section are integrally formed L-shaped structures.
[0013] Optionally, the first leak-proof layer, the second leak-proof layer, the three-dimensional leak-proof layer, and the bottom layer are all water-repellent non-woven fabric layers.
[0014] Optionally, the back leakage prevention elastic layer is a spandex fiber layer; the side leakage prevention elastic layer is a spandex fiber layer.
[0015] Optionally, the absorbent core is a superabsorbent resin layer.
[0016] Optionally, the disposable sanitary product with leak-proof function further includes a front leak-proof combination layer; the front leak-proof combination layer is disposed at the front end of the absorbent core in the length direction and is connected to the two side leak-proof combination layers;
[0017] The front leakage prevention composite layer includes a first front leakage prevention layer, a front leakage prevention elastic layer, and a second front leakage prevention layer, which are stacked on the two side leakage prevention composite layers.
[0018] On the edge of the front leak prevention composite layer near the front end of the absorbent core, a third sealant layer is provided between the first front leak prevention layer and the second front leak prevention layer, and between the first front leak prevention layer and the side leak prevention composite layer.
[0019] On the edge of the front leak prevention composite layer away from the front end of the absorbent core, the front leak prevention elastic layer is disposed between the first front leak prevention layer and the second front leak prevention layer, and is movably disposed relative to the side leak prevention composite layer.
[0020] A fourth sealant layer is provided on both sides of the edge of the anti-leakage combination layer along the length direction of the absorbent core, between the first anti-leakage layer and the second anti-leakage layer, and between the first anti-leakage layer and the anti-side leakage combination layer.
[0021] Optionally, both the first and second anti-leakage layers are water-repellent nonwoven fabric layers; the anti-leakage elastic layer is a spandex filament layer.
[0022] Optionally, in the length direction of the absorbent core, the length dimension of the anti-back leakage composite layer overlapping with each of the anti-side leakage composite layers is 50% to 100% of the length dimension of the anti-back leakage composite layer; the length dimension of the anti-back leakage composite layer overlapping with each of the anti-side leakage elastic layers is 30% or more of the length dimension of the anti-back leakage composite layer; the length dimension of the anti-front leakage composite layer overlapping with each of the anti-side leakage composite layers is 50% to 100% of the length dimension of the anti-front leakage composite layer; and the length dimension of the anti-front leakage composite layer overlapping with each of the anti-side leakage elastic layers is 30% or more of the length dimension of the anti-front leakage composite layer.
[0023] Optionally, a surface layer is provided between the absorbent core and the anti-side leakage composite layer, between the absorbent core and the anti-back leakage composite layer, and between the absorbent core and the anti-front leakage composite layer; the surface layer is a hydrophilic non-woven fabric layer, which facilitates timely diversion of urine to the absorbent core.
[0024] The application of the technical solution of this utility model has at least the following beneficial effects:
[0025] (1) The present invention provides a disposable sanitary product with anti-leakage function, which combines an anti-side leakage combination layer and an anti-back leakage combination layer on the absorbent core, which can be combined to form an absorbent cavity that prevents side leakage and back leakage. In addition to achieving the effect of preventing side leakage, it can also avoid the situation of back leakage when infants and young children lie flat.
[0026] (2) The present invention also provides a front leakage prevention combination layer on the absorbent core, which can be combined with the side leakage prevention combination layer and the back leakage prevention combination layer to form an absorbent cavity that prevents front leakage, side leakage and back leakage. On the basis of achieving the side leakage prevention effect, it can avoid the back leakage when infants and young children are lying flat and the front leakage when lying prone.
[0027] (3) In the anti-back leakage combined layer of this utility model, an anti-back leakage elastic layer is provided between the first anti-back leakage layer and the second anti-back leakage layer on the edge of the anti-back leakage combined layer away from the rear end of the absorbent core. It is movable relative to the anti-side leakage combined layer. At the same time, by combining the first sealant layer and the second sealant layer, an anti-back leakage absorbent bag can be formed, thereby avoiding the back leakage of urine when the infant is lying flat. Moreover, the first anti-back leakage layer and the second anti-back leakage layer of the absorbent bag are both water-repellent non-woven fabric layers, which can improve the anti-back leakage effect. Furthermore, the absorbent bag is formed on the anti-side leakage combined layer, and the two are combined and supported, which has a better anti-back leakage effect.
[0028] (4) In the present invention, an anti-leakage elastic layer is provided between the first anti-leakage layer and the second anti-leakage layer on the edge of the anti-leakage layer away from the front end of the absorbent core. This layer is movable relative to the anti-side leakage layer. At the same time, by combining the third and fourth sealing layers, an anti-leakage absorbent bag can be formed, thereby avoiding the leakage of urine when the infant is lying flat. Furthermore, the first and second anti-leakage layers of the absorbent bag are both water-repellent non-woven fabric layers, which can improve the anti-leakage effect. Moreover, the absorbent bag is formed on the anti-side leakage layer, and the two are combined and supported, which has a better anti-leakage effect.
[0029] (5) The percentage setting of the length dimension of the anti-back leakage combined layer and each anti-side leakage combined layer, the percentage setting of the length dimension of the anti-back leakage combined layer and each anti-side leakage elastic layer, the percentage setting of the length dimension of the anti-front leakage combined layer and each anti-side leakage combined layer, and the percentage setting of the length dimension of the anti-front leakage combined layer and each anti-side leakage elastic layer can reduce production costs while ensuring the anti-back leakage, anti-side leakage and anti-front leakage effects.
[0030] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description
[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0032] Figure 1 This is a top-view perspective structural diagram of a disposable sanitary product with leak-proof function in the embodiment;
[0033] Figure 2This is a front perspective view of a disposable sanitary product with leak-proof function as described in the embodiment.
[0034] Among them, 1. bottom layer, 2. absorbent core, 3. anti-side leakage composite layer, 3.1. three-dimensional anti-leakage layer, 3.2. anti-side leakage elastic layer, 4. anti-back leakage composite layer, 4.1. first anti-back leakage layer, 4.2. anti-back leakage elastic layer, 4.3. second anti-back leakage layer, 5. anti-front leakage composite layer, 5.1. first anti-front leakage layer, 5.2. anti-front leakage elastic layer, 5.3. second anti-front leakage layer, 6. top layer. Detailed Implementation
[0035] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0036] Example:
[0037] See Figures 1-2 A disposable sanitary product with leak-proof function (specifically, a leak-proof baby diaper product) includes a bottom layer 1, an absorbent core 2, a side leakage prevention combination layer 3, and a back leakage prevention combination layer 4; the absorbent core 2 is disposed on the bottom layer 1; the number of the side leakage prevention combination layers 3 is two sets, and they are arranged side by side on both sides of the length direction of the absorbent core 2; a gap is provided between the two side leakage prevention combination layers 3 to provide a channel for the absorbent core 2 to absorb urine; the back leakage prevention combination layer 4 is disposed at the rear end of the absorbent core 2 in the length direction and is connected to the two side leakage prevention combination layers 3.
[0038] The back leakage prevention composite layer 4 includes a first back leakage prevention layer 4.1, a back leakage prevention elastic layer 4.2, and a second back leakage prevention layer 4.3, which are stacked on the two back leakage prevention composite layers 3.
[0039] On the edge of the anti-back leakage composite layer 4 near the rear end of the absorbent core 2, a first sealant layer (specifically a hot melt adhesive layer) is provided between the first anti-back leakage layer 4.1 and the second anti-back leakage layer 4.3 and between the first anti-back leakage layer 4.1 and the anti-side leakage composite layer 3.
[0040] On the edge of the anti-back leakage composite layer 4 away from the rear end of the absorbent core 2, the anti-back leakage elastic layer 4.2 is provided between the first anti-back leakage layer 4.1 and the second anti-back leakage layer 4.3, and is movably disposed relative to the anti-side leakage composite layer 3;
[0041] On both sides of the anti-back leakage composite layer 4 along the length direction of the absorbent core 2, a second sealant layer (specifically a hot melt adhesive layer) is provided between the first anti-back leakage layer 4.1 and the second anti-back leakage layer 4.3 and between the first anti-back leakage layer 4.1 and the anti-side leakage composite layer 3.
[0042] The anti-side leakage composite layer 3 includes a three-dimensional anti-leakage layer 3.1 disposed on the absorbent core 2; the three-dimensional anti-leakage layer 3.1 includes a first anti-leakage section and a second anti-leakage section connected together; the first anti-leakage section is disposed parallel to the absorbent core 2; an anti-side leakage elastic layer 3.2 is disposed on the second anti-leakage section; the second anti-leakage section is disposed vertically on the first anti-leakage section and is connected to the first anti-back leakage layer 4.1.
[0043] The first leak-proof section and the second leak-proof section are an integrally formed L-shaped structure.
[0044] The first back leak-proof layer 4.1, the second back leak-proof layer 4.3, the three-dimensional leak-proof layer 3.1, and the bottom layer 1 are all water-repellent non-woven fabric layers.
[0045] The back leakage prevention elastic layer 4.2 is a spandex fiber layer; the side leakage prevention elastic layer 3.2 is a spandex fiber layer.
[0046] In the back leakage prevention composite layer 4, a back leakage prevention elastic layer 4.2 is provided between the first back leakage prevention layer 4.1 and the second back leakage prevention layer 4.3 on the edge of the back leakage prevention composite layer 4 away from the rear end of the absorbent core 2. It is movable relative to the side leakage prevention composite layer 3. At the same time, by combining the first sealant layer and the second sealant layer, a back leakage prevention absorbent bag can be formed, thereby avoiding back leakage when infants and young children are lying flat. Moreover, the first back leakage prevention layer 4.1 and the second back leakage prevention layer 4.3 of the absorbent bag are both water-repellent non-woven fabric layers, which can improve the back leakage prevention effect. Furthermore, the absorbent bag is formed on the side leakage prevention composite layer 3, and the two are combined and supported, which has a better back leakage prevention effect.
[0047] The absorbent core 2 is a highly absorbent resin layer, which facilitates rapid absorption of urine.
[0048] The disposable sanitary product with leak-proof function also includes a front leak-proof combination layer 5; the front leak-proof combination layer 5 is disposed at the front end of the absorbent core 2 in the length direction and is connected to the two side leak-proof combination layers 3.
[0049] The front leakage prevention composite layer 5 includes a first front leakage prevention layer 5.1, a front leakage prevention elastic layer 5.2, and a second front leakage prevention layer 5.3, which are stacked on the two front leakage prevention composite layers 3.
[0050] On the edge of the front leak prevention composite layer 5 near the front end of the absorbent core 2, a third sealant layer (specifically a hot melt adhesive layer) is provided between the first front leak prevention layer 5.1 and the second front leak prevention layer 5.3, and between the first front leak prevention layer 5.1 and the side leak prevention composite layer 3.
[0051] On the edge of the front leak prevention composite layer 5 away from the front end of the absorbent core 2, the front leak prevention elastic layer 5.2 is provided between the first front leak prevention layer 5.1 and the second front leak prevention layer 5.3, and is movably disposed relative to the side leak prevention composite layer 3;
[0052] On both sides of the anti-leakage combination layer 5 along the length direction of the absorbent core 2, a fourth sealant layer (specifically a hot melt adhesive layer) is provided between the first anti-leakage layer 5.1 and the second anti-leakage layer 5.3 and between the first anti-leakage layer 5.1 and the anti-side leakage combination layer 3.
[0053] Both the first anti-leakage layer 5.1 and the second anti-leakage layer 5.3 are water-repellent non-woven fabric layers; the anti-leakage elastic layer 5.2 is a spandex filament layer.
[0054] In the anti-leakage combination layer 5, an anti-leakage elastic layer 5.2 is provided between the first anti-leakage layer 5.1 and the second anti-leakage layer 5.3 on the edge of the anti-leakage combination layer 5 away from the front end of the absorbent core 2. It is movable relative to the anti-side leakage combination layer 3. At the same time, by combining the third and fourth sealing layers, an anti-leakage absorbent bag can be formed, thereby avoiding the leakage of urine when the infant is lying flat. Moreover, the first anti-leakage layer 5.1 and the second anti-leakage layer 5.3 of the absorbent bag are both water-repellent non-woven fabric layers, which can improve the anti-leakage effect. Furthermore, the absorbent bag is formed on the anti-side leakage combination layer 3, and the two are combined and supported, which has a better anti-leakage effect.
[0055] In this embodiment, the back leakage prevention layer and the front leakage prevention layer are respectively disposed at the rear end and the front end of the absorbent core along its length. The front end refers to the part located in front of the infant when the infant wears the diaper product of this embodiment, which is the front end. The rear end refers to the part located behind the infant when the infant wears the diaper product of this embodiment, which is the rear end.
[0056] Along the length of the absorbent core 2, the length of the anti-back leakage composite layer 4 overlapping with each of the anti-side leakage composite layers 3 is 50% to 100% (specifically 100%) of the length of the anti-back leakage composite layer 4; the length of the anti-back leakage composite layer 4 overlapping with each of the anti-side leakage elastic layers 3.2 is at least 30% (specifically 30%) of the length of the anti-back leakage composite layer 4; the length of the anti-front leakage composite layer 5 overlapping with each of the anti-side leakage composite layers 3 is 50% to 100% (specifically 100%) of the length of the anti-front leakage composite layer 5; and the length of the anti-front leakage composite layer 5 overlapping with each of the anti-side leakage elastic layers 3.2 is at least 30% (specifically 30%) of the length of the anti-front leakage composite layer 5. This percentage setting of each length dimension reduces production costs while ensuring the effectiveness of preventing back leakage, side leakage, and front leakage.
[0057] A surface layer 6 is provided between the absorbent core 2 and the anti-side leakage composite layer 3, between the absorbent core 2 and the anti-back leakage composite layer 4, and between the absorbent core 2 and the anti-front leakage composite layer 5. The surface layer 6 is a hydrophilic non-woven fabric layer, which facilitates the timely diversion of urine to the absorbent core 2.
[0058] In this embodiment, by combining a side leakage prevention layer 3, a back leakage prevention layer 4, and a front leakage prevention layer 5 on the absorbent core 2, an absorbent cavity that prevents side leakage, back leakage, and front leakage can be formed. In addition to achieving the effect of preventing side leakage, it can also avoid the back leakage when infants and young children are lying flat and the front leakage when they are lying prone.
[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A disposable sanitary article having a leakage preventing function, characterized by comprising: It includes a bottom layer (1), an absorbent core (2), a side leakage prevention combination layer (3), and a back leakage prevention combination layer (4); the absorbent core (2) is disposed on the bottom layer (1); there are two sets of side leakage prevention combination layers (3), which are arranged side by side on both sides of the length direction of the absorbent core (2); a gap is provided between the two side leakage prevention combination layers (3); the back leakage prevention combination layer (4) is disposed at the rear end of the length direction of the absorbent core (2) and is connected to the two side leakage prevention combination layers (3).
2. The disposable sanitary article having a leakage prevention function according to claim 1, characterized by, The back leakage prevention composite layer (4) includes a first back leakage prevention layer (4.1), a back leakage prevention elastic layer (4.2), and a second back leakage prevention layer (4.3) stacked on the two back leakage prevention composite layers (3). On the edge of the anti-back leakage composite layer (4) near the rear end of the absorbent core (2), a first sealant layer is provided between the first anti-back leakage layer (4.1) and the second anti-back leakage layer (4.3) and between the first anti-back leakage layer (4.1) and the anti-side leakage composite layer (3); On the edge of the back leakage prevention composite layer (4) away from the rear end of the absorbent core (2), the back leakage prevention elastic layer (4.2) is provided between the first back leakage prevention layer (4.1) and the second back leakage prevention layer (4.3), and is movably disposed relative to the side leakage prevention composite layer (3); On both sides of the anti-back leakage composite layer (4) along the length direction of the absorbent core (2), a second sealant layer is provided between the first anti-back leakage layer (4.1) and the second anti-back leakage layer (4.3) and between the first anti-back leakage layer (4.1) and the anti-side leakage composite layer (3).
3. The disposable sanitary article with leakage prevention function according to claim 2, characterized in that, The anti-side leakage composite layer (3) includes a three-dimensional anti-leakage layer (3.1) disposed on the absorbent core (2); the three-dimensional anti-leakage layer (3.1) includes a first anti-leakage section and a second anti-leakage section connected together; the first anti-leakage section is disposed parallel to the absorbent core (2); an anti-side leakage elastic layer (3.2) is disposed on the second anti-leakage section; the second anti-leakage section is disposed vertically on the first anti-leakage section and is connected to the first anti-back leakage layer (4.1).
4. The disposable sanitary product with leak-proof function according to claim 3, characterized in that, The first leak-proof section and the second leak-proof section are an integrally formed L-shaped structure.
5. The disposable sanitary product with leak-proof function according to claim 3, characterized in that, The first back leak-proof layer (4.1), the second back leak-proof layer (4.3), the three-dimensional leak-proof layer (3.1) and the bottom layer (1) are all water-repellent non-woven fabric layers.
6. The disposable sanitary product with leak-proof function according to claim 3, characterized in that, The back leakage prevention elastic layer (4.2) is a spandex fiber layer; the side leakage prevention elastic layer (3.2) is a spandex fiber layer.
7. The disposable sanitary product with leak-proof function according to claim 3, characterized in that, The absorbent core (2) is a superabsorbent resin layer.
8. The disposable sanitary product with leak-proof function according to any one of claims 3 to 7, characterized in that, It also includes a front leakage prevention combination layer (5); the front leakage prevention combination layer (5) is disposed at the front end of the absorbent core (2) in the length direction and is connected to the two side leakage prevention combination layers (3); The front leakage prevention composite layer (5) includes a first front leakage prevention layer (5.1), a front leakage prevention elastic layer (5.2), and a second front leakage prevention layer (5.3) stacked on the two front leakage prevention composite layers (3). On the edge of the front end of the anti-leakage combination layer (5) near the front end of the absorbent core (2), a third sealant layer is provided between the first anti-leakage layer (5.1) and the second anti-leakage layer (5.3) and between the first anti-leakage layer (5.1) and the anti-side leakage combination layer (3). On the edge of the front end of the anti-leakage combination layer (5) away from the front end of the absorbent core (2), the anti-leakage elastic layer (5.2) is provided between the first anti-leakage layer (5.1) and the second anti-leakage layer (5.3), and is movably disposed relative to the anti-side leakage combination layer (3); A fourth sealant layer is provided on both sides of the anti-leakage combination layer (5) along the length direction of the absorbent core (2), between the first anti-leakage layer (5.1) and the second anti-leakage layer (5.3) and between the first anti-leakage layer (5.1) and the anti-side leakage combination layer (3).
9. The disposable sanitary product with leak-proof function according to claim 8, characterized in that, The first anti-leakage layer (5.1) and the second anti-leakage layer (5.3) are both water-repellent non-woven fabric layers; the anti-leakage elastic layer (5.2) is a spandex filament layer; In the length direction of the absorbent core (2), the length dimension of the anti-back leakage composite layer (4) that overlaps with each of the anti-side leakage composite layers (3) is 50% to 100% of the length dimension of the anti-back leakage composite layer (4); the length dimension of the anti-back leakage composite layer (4) that overlaps with each of the anti-side leakage elastic layers (3.2) is 30% or more of the length dimension of the anti-back leakage composite layer (4); the length dimension of the anti-front leakage composite layer (5) that overlaps with each of the anti-side leakage composite layers (3) is 50% to 100% of the length dimension of the anti-front leakage composite layer (5); the length dimension of the anti-front leakage composite layer (5) that overlaps with each of the anti-side leakage elastic layers (3.2) is 30% or more of the length dimension of the anti-front leakage composite layer (5).
10. The disposable sanitary product with leak-proof function according to claim 9, characterized in that, A surface layer (6) is provided between the absorbent core (2) and the anti-side leakage composite layer (3), between the absorbent core (2) and the anti-back leakage composite layer (4), and between the absorbent core (2) and the anti-front leakage composite layer (5); the surface layer (6) is a hydrophilic nonwoven fabric layer.