Efficient absorption baby paper diaper with double diversion layers

Abstract

The utility model relates to the field of hygienic products, provides an efficient absorption baby paper diaper with double flow guide layers, and solves the problems that an existing paper diaper cannot efficiently absorb urine and is low in flow guide speed, reverse osmosis of the urine occurs, and a large amount of local permeation is likely to occur. Comprising a surface layer, a flow guide layer, an absorber and a leakage-proof bottom film which are sequentially stacked from top to bottom, the flow guide layer is defined to have the longitudinal direction in the length direction and the transverse direction perpendicular to the longitudinal direction, and a concave-convex three-dimensional structure is arranged on the surface of the surface layer; the flow guide layer comprises a first flow guide layer and a second flow guide layer which are sequentially laminated from top to bottom, a flow guide structure is arranged in the first flow guide layer, the flow guide structure is funnel-shaped, and the surface of the first flow guide layer is of a wavy structure; the second flow guide layer comprises a damping diffusion layer, and a flow guide path is arranged in the damping diffusion layer.

Description

Technical Field

[0001] This utility model relates to the field of hygiene products, and in particular to a highly absorbent baby diaper with a double-layer diversion layer. Background Technology

[0002] In today's increasingly sophisticated family parenting concepts, baby care products, especially baby diapers, have become indispensable daily necessities for new parents. With continuous technological advancements and growing consumer demands, numerous innovatively designed diaper products have emerged in the market, aiming to provide a more comfortable, safe, and efficient care experience.

[0003] Chinese Patent Application No. 202322034922.1 discloses a sanitary absorbent product, which, from top to bottom, comprises a surface layer, a covering layer, an absorbent core, and a leak-proof layer. The absorbent core includes an absorbent layer; the absorbent layer includes at least one layer of absorbent paper, and the absorbent layer has a perforated structure that protrudes from the lower surface of the absorbent layer. The perforated structure in this sanitary absorbent product forms a three-dimensional suspended honeycomb structure, which promotes the downward absorption speed and increases breathability. However, this sanitary absorbent product lacks a double-layer diversion layer structure, making it unable to efficiently absorb urine, quickly divert it, and prevent urine backflow.

[0004] Chinese Patent Application No. 202322597953.8 discloses a diaper distribution layer and a novel diaper using the same layer. The diaper includes a distribution layer comprising an upper and lower PE layer and a non-woven fabric layer. The PE layer is fixedly connected to the top end face of the non-woven fabric layer. The PE layer has several through-holes, each funnel-shaped, with an inlet at the top and an outlet at the bottom of the PE layer. The opening area of ​​the inlet is larger than that of the outlet. The inlet is polygonal, allowing the through-holes to be evenly arranged on the PE layer, with one side of each through-hole abutting against the side of another. This diaper can significantly reduce backflow, thus improving overall dryness. However, the novel non-woven fabric layer lacks damping diffusion function, making it prone to localized large-scale leakage when urine volume is high, leading to side leakage. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model provides a high-efficiency absorbent baby diaper with a double-layer diversion layer, which solves the problems of existing diapers being unable to absorb urine efficiently, having a slow diversion speed, and experiencing urine backflow and localized large-scale leakage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency absorbent baby diaper with a double-layered diversion layer includes a top layer, a diversion layer, an absorbent core, and a leak-proof bottom film stacked sequentially from top to bottom. The diversion layer is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The surface of the top layer has a three-dimensional structure with concave and convex features. The diversion layer includes a first diversion layer and a second diversion layer stacked sequentially from top to bottom. The first diversion layer has a diversion structure inside, which is funnel-shaped, and the surface of the first diversion layer has a wavy structure. The second diversion layer includes a damping diffusion layer, which has a diversion path inside.

[0008] Furthermore, the shape of the flow path can be any one of S-shape, inverted Y-shape, or straight strip shape.

[0009] Furthermore, the starting point of the flow guiding path is connected to the flow guiding structure, and the ending point of the flow guiding path is connected to the absorber.

[0010] Furthermore, the first guide layer is a longitudinally combed first fiber web.

[0011] Furthermore, the second guide layer is a horizontally combed second fiber web.

[0012] Furthermore, the fineness of the first fiber web is greater than that of the second fiber web.

[0013] Furthermore, the maximum diameter of the flow guiding structure is 0.5-2.5 mm.

[0014] Furthermore, the basis weight of the first diversion layer is 30-45 g / m³. 2 .

[0015] Furthermore, the basis weight of the second diversion layer is 10-20 g / m³. 2 .

[0016] Furthermore, the first guide layer and the second guide layer are reinforced and composited by hot air.

[0017] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows:

[0018] 1. The surface layer has a textured three-dimensional structure, which reduces the contact area between the surface material and the skin. An air gap is formed between the surface layer and the baby's skin, which can reduce friction and stuffiness. At the same time, the raised structure of the surface layer can guide urine to quickly penetrate into the next layer and prevent liquid backflow.

[0019] 2. The surface of the first guiding layer has a funnel-shaped guiding structure, which provides fast directional flow. The wavy surface of the first guiding layer can provide channels for the flow of liquid, and can store a certain amount of liquid when the baby's urine is large. The second guiding layer includes a damping diffusion layer, which can prevent large amounts of urine from seeping in a local area. The surface of the damping diffusion layer has an inverted Y-shaped guiding path. The design of the double guiding layer can promote the vertical wicking effect of the liquid, which can efficiently absorb urine and guide it quickly.

[0020] 3. The first guiding layer is a longitudinally combed first fiber web, which can disperse urine longitudinally; the second guiding layer is a transversely combed second fiber web, which can quickly absorb urine and prevent backflow; the fineness of the first fiber web is greater than that of the second fiber web, so the pores formed by the first fiber web are larger, and more liquid can penetrate in faster. The pores formed by the second fiber web are smaller. There is a capillary dynamic difference between the upper and lower fiber webs, which can accelerate the passage of urine through the guiding layer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the diaper in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the diaper in an embodiment of this utility model;

[0023] The labels in the diagram are as follows: 1-Surface layer, 2-Flow guiding layer, 3-Absorber, 4-Leak-proof bottom membrane, 11-Concave-convex three-dimensional structure, 21-First flow guiding layer, 22-Second flow guiding layer, 211-Flow guiding structure, 221-Damping diffusion layer, 222-Flow guiding path. Detailed Implementation

[0024] The embodiment of this utility model is as follows:

[0025] refer to Figures 1 to 2 A high-efficiency absorbent baby diaper with a double-layer diversion layer includes a top layer 1, a diversion layer 2, an absorbent body 3, and a leak-proof bottom film 4 stacked sequentially from top to bottom. The diversion layer 2 is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it. The surface of the top layer 1 is provided with a three-dimensional structure 11 with concave and convex features. The diversion layer includes a first diversion layer 21 and a second diversion layer 22 stacked sequentially from top to bottom. The first diversion layer 21 has a diversion structure 211 inside, which is funnel-shaped, and the surface of the first diversion layer 21 has a wavy structure. The second diversion layer 22 includes a damping diffusion layer 221, which has an S-shaped diversion path 222 inside.

[0026] Specifically, the starting point of the flow guiding path 222 is connected to the flow guiding structure 211, and the ending point of the flow guiding path 222 is connected to the absorber 3. The first flow guiding layer 21 is a longitudinally combed first fiber web, and the second flow guiding layer 22 is a transversely combed second fiber web. The fineness of the first fiber web is greater than that of the second fiber web. The maximum diameter of the flow guiding structure 211 is 2.5 mm, and the basis weight of the first flow guiding layer 21 is 40 g / m³. 2 The basis weight of the second flow guiding layer 22 is 20 g / m³. 2 The first guide layer 21 and the second guide layer 22 are reinforced and composited by hot air.

[0027] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A high-efficiency absorbent baby diaper with a double-layer diversion layer, comprising a top layer, a diversion layer, an absorbent core, and a leak-proof bottom film stacked sequentially from top to bottom, wherein the diversion layer is defined to have a longitudinal direction along its length and a transverse direction perpendicular to it, characterized in that: The surface of the surface layer has a three-dimensional structure with concave and convex features; the flow guiding layer includes a first flow guiding layer and a second flow guiding layer stacked sequentially from top to bottom, the first flow guiding layer has a flow guiding structure inside, the flow guiding structure is funnel-shaped, and the surface of the first flow guiding layer has a wave-shaped structure; the second flow guiding layer includes a damping diffusion layer, and the damping diffusion layer has a flow guiding path inside.

2. The high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The shape of the flow path can be any one of S-shape, inverted Y-shape, or straight strip shape.

3. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The starting point of the flow guiding path is connected to the flow guiding structure, and the ending point of the flow guiding path is connected to the absorber.

4. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The first flow guide layer is a longitudinally combed first fiber web.

5. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 4, characterized in that: The second flow guide layer is a horizontally combed second fiber web.

6. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 5, characterized in that: The fineness of the first fiber web is greater than that of the second fiber web.

7. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The maximum diameter of the flow guiding structure is 0.5-2.5 mm.

8. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The basis weight of the first flow-guiding layer is 30-45 g / m³. 2 .

9. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The basis weight of the second flow-guiding layer is 10-20 g / m³. 2 .

10. A high-efficiency absorbent baby diaper with a double-layer diversion layer according to claim 1, characterized in that: The first flow guide layer and the second flow guide layer are reinforced and composited by hot air.

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