Disposable absorption article capable of improving side leakage prevention performance and improving softness
By adding cushioning material to both sides of the composite core to form a high-low drop structure, the problems of diaper side leakage and polymer particle feel are solved, achieving better side leakage prevention performance and softness.
Patent Information
- Application Number
- CN202423100232.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing diaper products are inadequate in terms of leak prevention and softness, especially the composite core structure design, which leads to side leakage problems and a noticeable polymer particle feel.
Buffering materials are added to both sides of the composite core to form a height difference structure. The buffering materials improve the anti-leakage performance, and the soft materials reduce the feeling of polymer particles.
It effectively reduces the probability of liquid leakage, while improving the product's softness, eliminating the feel of polymer particles, and enhancing the user experience.
Smart Images

Figure CN223914319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maternal and infant products technology, and in particular to a disposable absorbent product that can improve side leakage prevention performance and enhance softness. Background Technology
[0002] Existing diaper products have made significant efforts to prevent leaks, such as adding 3D leak-proof side panels and channeling channels in the core to improve product diffusion. However, consumers may still face side leakage issues due to sleeping positions or other reasons. Currently, conventional composite cores, such as... Figure 1 As shown, it is generally composed of 5 layers of materials. The top and bottom layers are spunlace nonwoven fabric or spunbond nonwoven fabric, the middle layer is fluffy cotton nonwoven fabric, and the upper and lower polymer layers are distributed in between, and the products are of the same thickness.
[0003] Although existing technologies include, for example, the Chinese patent CN107904786B which discloses an absorption area with a grid-like concave-convex structure on the composite core, the product thickness is the same; the only difference is that the product is made into a curved shape.
[0004] In addition, the current composite core contains a high amount of polymer, and some users can feel the granular texture of the polymer in the core by touch, so they think the diapers are still not soft enough. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, this utility model provides a disposable absorbent product that improves side leakage by changing the core structure, reduces the particulate feel of polymers, and enhances both leak-proof performance and softness. To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A disposable absorbent product that improves side leakage prevention performance and enhances softness includes a wrapping layer comprising a composite core and a wrapping nonwoven fabric surrounding the composite core. A cushioning material is also provided between the composite core and the wrapping nonwoven fabric to create a height difference between the composite core and the nonwoven fabric.
[0007] Based on the above technical solution, the present invention may also adopt the following further technical solutions:
[0008] The cushioning material is composited below the composite core, and the cushioning material is wrapped in non-woven fabric.
[0009] The cushioning material is applied to the lower part of the two sides of the composite core so that the two sides of the composite core are higher than the center of the composite core.
[0010] The cushioning material is provided in two parts and is respectively bonded to the left and right sides of the composite core. The two cushioning materials are designed in a left-right mirror symmetry.
[0011] The outer edge of the buffer material is bonded to the outer edge of the composite core, and the outer edge of the buffer material is a straight edge.
[0012] The inner edge of the buffer material is a straight edge or a wavy curved edge.
[0013] The cushioning material is high-grammage hot-air nonwoven fabric or fluffy fabric.
[0014] The width of the cushioning material is 50mm to 90mm.
[0015] The upper part of the wrapping layer is further laminated with a surface layer, and the lower part of the wrapping layer is laminated with a breathable bottom film and a bottom non-woven fabric from top to bottom.
[0016] Compared with the prior art, the beneficial effects that this utility model can achieve are:
[0017] This invention adds a layer of cushioning material to the non-skin-contact sides of the composite core, making the sides of the core slightly higher than the center. This reduces the flow of liquid towards the edges during wear, thus lowering the probability of leakage. Simultaneously, the added cushioning material enhances the product's softness when touching the sides of the composite core from the outer layer, preventing the feeling of polymer particles. Attached Figure Description
[0018] Figure 1 This is a cross-sectional view of the background technology for a disposable absorbent product that can improve side leakage prevention performance and enhance softness according to this utility model.
[0019] Figure 2 This is a cross-sectional view of a disposable absorbent product that improves side leakage prevention and enhances softness according to this utility model.
[0020] Figure 3 This is a schematic diagram of the distribution of cushioning material in an embodiment of the present invention, which improves the anti-leakage performance and enhances the softness of a disposable absorbent product.
[0021] Figure 4 This is a schematic diagram of the distribution of cushioning material in Embodiment 2 of the present invention, which improves the anti-leakage performance and enhances the softness of a disposable absorbent product.
[0022] The components include: surface layer 1, breathable bottom membrane 2, bottom non-woven fabric 3, composite core 4, wrapping non-woven fabric 5, and cushioning material 6. Detailed Implementation
[0023] The accompanying drawings provide a further description of a disposable absorbent product that improves side leakage prevention and enhances softness.
[0024] Example 1, as Figure 2 and 3 As shown, a disposable absorbent product, such as a diaper, that can improve side leakage prevention performance and enhance softness includes a wrapping layer, a top layer 1, a breathable bottom film 2, and a bottom nonwoven fabric 3. The top layer 1 is laminated to the upper surface of the wrapping layer, the breathable bottom film 2 is laminated to the lower surface of the wrapping layer, and the bottom nonwoven fabric 3 is laminated to the lower surface of the breathable bottom film 2.
[0025] The wrapping layer includes a composite core 4 and a wrapping nonwoven fabric 5, with the wrapping nonwoven fabric 5 surrounding the composite core 4.
[0026] Furthermore, a cushioning material 6 is provided between the composite core 4 and the wrapping nonwoven fabric 5 to create a height difference in the composite core 4. At the same time, the cushioning material 6 is surrounded by the wrapping nonwoven fabric 5.
[0027] Furthermore, the cushioning material 6 is composited on the lower part of the two sides of the composite core 4, so that the two sides of the composite core 4 are higher than the center of the composite core 4, forming a height difference between the left and right sides and the middle. Due to the design of the cushioning material 6, the overall wrapping layer is thicker on the two sides and thinner in the middle.
[0028] Furthermore, there are two cushioning materials 6, which are respectively bonded to the left and right sides of the composite core 4, and the two cushioning materials 6 are designed in a mirror-symmetrical manner. The cushioning materials 6 are cut by a slitting knife, then separated by the equipment, and respectively bonded to the left and right sides of the composite core 4.
[0029] Furthermore, the outer edge of the cushioning material 6 is bonded to the outer edge of the composite core 4 below, and the outer edge of the cushioning material 6 is a straight edge.
[0030] Furthermore, the inner edge of the cushioning material 6 is a straight edge.
[0031] Specifically, the cushioning material 6 can be made of soft and fluffy materials such as high-grammage hot-air nonwoven fabric or voluminous fabric. Meanwhile, the width of the cushioning material is 50mm to 90mm.
[0032] Example 2, as Figure 4 As shown, the inner edge of the buffer material 6 is a wavy curved edge, which can better slow down the flow of liquid from both sides to the side edges. Everything else is the same as in Example 1.
[0033] This utility model has been illustrated and described with reference to preferred embodiments; however, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A disposable absorbent product that improves side leakage prevention performance and enhances softness, comprising a wrapping layer, characterized in that... The wrapping layer includes a composite core and a wrapping nonwoven fabric surrounding the composite core. A cushioning material is also provided between the composite core and the wrapping nonwoven fabric to create a height difference between the composite core and the nonwoven fabric.
2. The disposable absorbent product according to claim 1, which improves side leakage prevention performance and enhances softness, is characterized in that... The cushioning material is composited below the composite core, and the cushioning material is wrapped in non-woven fabric.
3. A disposable absorbent product according to claim 2 that improves side leakage prevention performance and enhances softness, characterized in that... The cushioning material is applied to the lower part of the two sides of the composite core so that the two sides of the composite core are higher than the center of the composite core.
4. A disposable absorbent product according to claim 3 that improves side leakage prevention performance and enhances softness, characterized in that... The cushioning material is provided in two parts and is respectively bonded to the left and right sides of the composite core. The two cushioning materials are designed in a left-right mirror symmetry.
5. A disposable absorbent product according to claim 4 that improves side leakage prevention performance and enhances softness, characterized in that... The outer edge of the buffer material is bonded to the outer edge of the composite core, and the outer edge of the buffer material is a straight edge.
6. A disposable absorbent product according to claim 4 that improves side leakage prevention performance and enhances softness, characterized in that... The inner edge of the buffer material is a straight edge or a wavy curved edge.
7. A disposable absorbent product according to claim 1, characterized in that it improves side leakage prevention performance and enhances softness. The cushioning material is high-grammage hot-air nonwoven fabric or fluffy fabric.
8. A disposable absorbent product according to claim 1, characterized in that it improves side leakage prevention performance and enhances softness. The width of the cushioning material is 50mm to 90mm.
9. A disposable absorbent product according to claim 1, characterized in that it improves side leakage prevention performance and enhances softness. The upper part of the wrapping layer is further laminated with a surface layer, and the lower part of the wrapping layer is laminated with a breathable bottom film and a bottom non-woven fabric from top to bottom.
Citation Information
Patent Citations
Concave-convex hot air nonwoven fabric and its application in diapers and diapers
CN107904786B