Anti-reverse-osmosis baby paper diaper with three-dimensional opening structure

Abstract

The utility model relates to the field of hygienic products, provides an anti-reverse-osmosis baby paper diaper with a three-dimensional opening structure, and solves the problems that an existing paper diaper is poor in anti-reverse-osmosis effect and air permeability and easy to cause stuffiness. Comprising a paper diaper body, the paper diaper body comprises an absorber and an outer clothes layer arranged outside the absorber, the absorber comprises a surface layer, a flow guide layer, an absorption core body and a bottom film layer which are sequentially arranged in a laminated mode from top to bottom, and a three-dimensional opening structure is formed in the surface layer. The three-dimensional opening structure comprises a cavity located in the upper layer and a cylinder hole located in the lower layer, the cylinder hole is located under the center of the cavity, the cavity is in a semi-ellipsoid shape and protrudes upwards, the cylinder hole is in an elliptic cylinder shape, a plurality of first connecting points are arranged in the cavity, and the first connecting points are connected with the cylinder hole. A plurality of second connecting points are arranged in the column body hole, and the first connecting points and the second connecting points are connected through connecting lines.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sanitary products, especially to a three-dimensional opening structure's anti-reverse osmosis baby paper diaper. BACKGROUND

[0002] Baby paper diapers have become an indispensable good helper in modern family parenting with their excellent water absorption performance, comfort and convenience. Whether it is day or night, it can provide all-round care for the baby, and let the baby grow healthily in a comfortable environment.

[0003] Chinese patent application number 202323484257.2 discloses a laminated cross-channel baby paper diaper, including a wearing part and a water absorption part arranged on the wearing part, the water absorption part includes a skin-friendly layer in contact with the human skin, a flow guide layer for flow guide, an absorption layer for water absorption and water locking, and an outer layer located at the outermost part to prevent leakage, the skin-friendly layer, the flow guide layer, the absorption layer and the outer layer are arranged in sequence and are fixedly connected with each other, the absorption layer includes an absorption part, the absorption part is provided with a plurality of absorption parts, and the plurality of absorption parts are mutually superimposed, the adjacent two absorption parts are arranged in cross arrangement, the absorption part includes a drainage area and a water locking area, the water locking area is symmetrically arranged on both sides of the drainage area, and can realize rapid absorption of liquid. When the baby paper diaper skin-friendly layer does not have a three-dimensional opening structure, the air permeability is relatively poor.

[0004] Chinese patent application number 202323490065.2 discloses a low-resistance high-permeability baby paper diaper, including a surface layer made of air-permeable non-woven fabric and an outer layer made of PE film located on one side of the surface layer, an absorption layer is arranged between the surface layer and the outer layer to absorb and lock water, the absorption layer includes a water locking layer made of superabsorbent polymer and a guide assembly located inside the water locking layer, the guide assembly includes guide fibers, the side surface of the guide fiber is symmetrically provided with a guide groove for guiding the diffusion of urine, which can realize rapid dispersion of urine and ensure dryness. But the baby paper diaper does not have good anti-reverse osmosis function, and urine reverse osmosis will stimulate the baby's skin. UTILITY MODEL CONTENTS

[0005] Therefore, in view of the above problems, the utility model provides a three-dimensional opening structure's anti-reverse osmosis baby paper diaper, which solves the problems of poor anti-reverse osmosis effect and air permeability of existing paper diapers, and easy to produce stuffiness.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The anti-reverse osmosis baby diaper with three-dimensional opening structure comprises a diaper body, wherein the diaper body comprises an absorbent body and an outer clothing layer arranged outside the absorbent body, and the absorbent body comprises a surface layer, a flow guide layer, an absorbent core body and a bottom film layer arranged in sequence from top to bottom, wherein the surface layer is provided with a three-dimensional opening structure, the three-dimensional opening structure comprises a cavity on the upper layer and a columnar hole on the lower layer, the columnar hole is located directly below the center of the cavity, the cavity is in the shape of a semi-ellipsoid, the cavity is convex upward, the columnar hole is in the shape of an elliptical column, a plurality of first joint points are arranged in the cavity, a plurality of second joint points are arranged in the columnar hole, and the first joint points and the second joint points are connected by joint lines.

[0008] Further, the elliptical plane of the columnar hole comprises a first long axis and a first short axis, and the ratio of the first long axis to the first short axis is 1:1.5-3.

[0009] Further, the elliptical plane of the columnar hole comprises a first long axis and a first short axis, and the ratio of the first long axis to the first short axis is 1:1.5-3.

[0010] Further, the depth of the cavity is 1.6-3.0 mm.

[0011] Further, the length of the first long axis is 0.4-0.8 mm.

[0012] Further, the length of the first short axis is 0.2-0.6 mm.

[0013] Further, the length of the second long axis is 1.8-2.4 mm.

[0014] Further, the length of the second short axis is 1.6-2.0 mm.

[0015] By adopting the foregoing technical scheme, the beneficial effects of the present application are as follows:

[0016] The lengths of the first major axis and the first minor axis are both greater than the lengths of the second major axis and the second minor axis, resulting in a smaller curvature of the liquid surface formed when urine contacts the upper cavity. This reduces the impact of surface tension on urine flow, facilitating smoother passage of urine through the upper cavity into the lower cylindrical pores and effectively preventing backflow caused by surface tension. The design of the cavity and cylindrical pores in the three-dimensional open structure means that the surface layer is no longer completely flat but has a certain degree of unevenness. This uneven structure reduces the direct contact area between the skin and the diaper surface layer, reducing friction and improving wearing comfort. The larger upper cavity allows for… It more effectively holds urine and quickly guides it to flow into the lower columnar pores when it comes into contact with the surface layer; the combination of the upper cavity and the lower columnar pores creates a certain air circulation space inside the surface layer, allowing air to flow in these gaps, increasing the breathability of the diaper, keeping the baby's skin dry and avoiding stuffiness; the columnar pores, as channels for liquid flow, can quickly guide urine from the upper cavity to the lower layer, and even further be absorbed by the absorbent core, effectively reducing the time urine stays on the surface layer, reducing direct contact between urine and the baby's skin, and thus reducing the risk of diaper rash caused by urine irritation. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the diaper in an embodiment of this utility model;

[0018] Fig. 2 This is a schematic diagram of the surface layer structure in an embodiment of this utility model;

[0019] Fig. 3 This is a schematic diagram of the three-dimensional opening structure in an embodiment of this utility model;

[0020] The labels in the diagram are as follows: 1-Diaper body, 2-Absorbent core, 3-Outer garment layer, 4-Top layer, 5-Flow guide layer, 6-Absorbent core, 7-Bottom film layer, 8-Three-dimensional open structure, 9-Cavity, 10-Cylindrical hole, 11-First connection point, 12-Second connection point, 13-Connection line, 14-First major axis, 15-First minor axis, 16-Second major axis, 17-Second minor axis. Detailed Implementation

[0021] The embodiment of this utility model is as follows:

[0022] refer to Figs. 1 to 3The utility model provides a kind of anti-reverse osmosis baby diaper with three-dimensional open hole structure, including diaper body 1, the diaper body 1 includes absorbent body 2 and the outer clothing layer 3 being arranged outside absorbent body, the absorbent body 2 includes by upper layer sequentially laminated arrangement face layer 4, flow guide layer 5, absorbent core 6, bottom film layer 7, three-dimensional open hole structure 8 is opened in the face layer 4, the three-dimensional open hole structure 8 includes cavity 9 located in upper layer and column hole 10 located in lower layer, the column hole 10 is located in the just below cavity 9 center, the shape of the cavity 9 is half ellipsoid, the cavity 9 is projected upward, the shape of the column hole 10 is elliptic cylinder, the cavity 9 is equipped with a plurality of first joint points 11 inside, the column hole 10 is equipped with a plurality of second joint points 12 inside, each first joint point 11 is connected with each second joint point 12 by joint line 13, the elliptic plane of column hole 10 includes first long axis 14 and first short axis 15, the ratio of first long axis 14 and first short axis 15 is 1:2;The elliptic plane that the cavity 9 is connected with column hole 10 includes second long axis 16 and second short axis 17, the ratio of second long axis 16 and second short axis 17 is 1:1, the depth of the cavity is 1.8mm, the length of first long axis is 0.5mm, the length of first short axis is 0.25mm, the length of second long axis is 1.8mm, the length of second short axis is 1.8mm.

[0023] Although the utility model is specifically shown and introduced in combination with preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and detail without departing from the spirit and scope of the utility model defined in the appended claims, and all are within the protection scope of the utility model.

Claims

1. A three-dimensional open-cell structure anti-backflow baby diaper, comprising a diaper body, the diaper body including an absorbent core and an outer garment layer disposed outside the absorbent core, the absorbent core comprising a top layer, a flow-guiding layer, an absorbent core, and a bottom film layer stacked sequentially from top to bottom, characterized in that, The surface layer has a three-dimensional perforated structure, which includes a cavity in the upper layer and a cylindrical hole in the lower layer. The cylindrical hole is located directly below the center of the cavity. The cavity is semi-ellipsoidal in shape and protrudes upward. The cylindrical hole is elliptical in shape. The cavity has a number of first connection points inside, and the cylindrical hole has a number of second connection points inside. Each first connection point and each second connection point are connected by a connection line.

2. The anti-backflow baby diaper with a three-dimensional open structure according to claim 1, characterized in that, The elliptical plane of the cylindrical hole includes a first major axis and a first minor axis, and the ratio of the first major axis to the first minor axis is 1:1.5-3.

3. The anti-backflow baby diaper with a three-dimensional open structure according to claim 1, characterized in that, The elliptical plane connecting the cavity and the cylindrical hole includes a second major axis and a second minor axis, with the ratio of the second major axis to the second minor axis being 1:1.0-1.

2.

4. The anti-backflow baby diaper with a three-dimensional open structure according to claim 1, characterized in that, The depth of the cavity is 1.6-3.0 mm.

5. A backflow-proof baby diaper with a three-dimensional open-cell structure according to claim 2, characterized in that, The length of the first major axis is 0.4-0.8 mm.

6. A backflow-proof baby diaper with a three-dimensional open structure according to claim 2, characterized in that, The length of the first short axis is 0.2-0.6 mm.

7. A backflow-proof baby diaper with a three-dimensional open structure according to claim 3, characterized in that, The length of the second major axis is 1.8-2.4 mm.

8. A backflow-proof baby diaper with a three-dimensional open structure according to claim 3, characterized in that, The length of the second short axis is 1.6-2.0 mm.

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