Paper diaper with regional absorption function

By introducing a zoned absorption structure into the diaper, including a first and second absorbent layer and a non-linear guide channel designed to increase the variation in urine flow direction, combined with a barrier structure to improve urine absorption speed, the problem of uneven urine dispersion is solved, and more efficient urine absorption is achieved.

CN224251653UActive Publication Date: 2026-05-19TIANHE WOMEN & CHILDREN GOODS CO LTD FUJIAN NANAN
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANHE WOMEN & CHILDREN GOODS CO LTD FUJIAN NANAN
Filing Date
2025-05-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing diapers are not designed to effectively take into account the differences in the human body's urination position, resulting in uneven urine distribution and some areas not being able to quickly penetrate the core, thus causing insufficient use of the core.

Method used

The system employs a zoned absorption structure, comprising a first absorption layer and a second absorption layer. The second absorption layer is located above the first absorption layer and is smaller. A quick-penetration pore is provided between the two layers. The flow channel is covered by a pleated layer and filled with absorbent cotton swabs. The flow channel is designed to be non-linear to increase the change in the direction of urine flow. Combined with the enclosure structure, this improves the urine absorption speed.

Benefits of technology

It enables rapid, zoned absorption of urine, improving urine penetration speed and absorption efficiency, avoiding uneven use of the core, and enhancing the absorbency of the diaper.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224251653U_ABST
    Figure CN224251653U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of paper diapers, in particular to a paper diaper with a regional absorption function. The paper diaper comprises a paper diaper bottom layer, an absorption core body and a wrinkle layer, the absorption core body is arranged in the paper diaper bottom layer and comprises a first absorption layer and a second absorption layer, the second absorption layer is arranged above the first absorption layer, the length and the width of the second absorption layer are smaller than those of the first absorption layer, and the wrinkle layer is arranged at the top of the paper diaper bottom layer and covers the absorption core body. A plurality of nonlinear flow guide grooves are formed in the surface of the wrinkle layer. The absorption core bodies with uneven thicknesses are arranged according to the distribution condition of urine, regional absorption of the urine is achieved on the premise that the using body feeling is kept, the non-linear flow guide layer is arranged on the surface, making contact with a baby, of the paper diaper, the flowing direction change of the urine in the flow guide groove is increased on the premise that the urethra is rapidly guided, and the urine absorption effect is improved. Therefore, the urine absorption speed is increased.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of diapers, and in particular to a diaper with zoned absorption function. Background Technology

[0002] Most existing diapers use a uniformly long and thick absorbent core placed in the center as the structure for urine absorption. This ignores the uneven distribution of urine on the diaper due to differences in the position of urination. As a result, some areas with concentrated urine cannot quickly penetrate the core, while some areas with less urine cannot fully utilize the core. Therefore, there is a need for a diaper with zoned absorption function. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a diaper with zoned absorption function, which has the advantages of zoned absorption and rapid penetration and dispersion.

[0004] This utility model provides a diaper with regional absorption function, including a diaper bottom layer, an absorbent core, and a pleated layer. The absorbent core is placed inside the diaper bottom layer and includes a first absorbent layer and a second absorbent layer. The second absorbent layer is located above the first absorbent layer and its length and width are both smaller than the first absorbent layer. The pleated layer is located on top of the diaper bottom layer and covers the absorbent core. The surface of the pleated layer is provided with a plurality of non-linear guide grooves.

[0005] Furthermore, absorbent cotton swabs are filled between adjacent guide channels.

[0006] Furthermore, a barrier is provided on the top of the first absorbent layer.

[0007] Furthermore, the width of the second absorption layer is greater at the two sides than at the middle.

[0008] Furthermore, the sidewall of the second absorbent layer is provided with quick-penetration pores, which are covered with a mesh layer.

[0009] Furthermore, the bottom layer of the diaper includes two symmetrically arranged adhesive portions, which are in the shape of an isosceles trapezoid.

[0010] By adopting the above technical solution, the beneficial effects of this utility model are:

[0011] This invention features an absorbent core with uneven thickness based on urine distribution, achieving zoned urine absorption while maintaining a comfortable feel. A non-linear guide layer is provided on the surface of the diaper that contacts the baby, increasing the flow direction of urine in the guide channel while quickly guiding the urethra, thereby improving the urine absorption speed. By setting a barrier on the first absorbent layer, the instantaneous absorption of urine by the core after seepage is increased, and combined with the rapid seepage holes on the side wall of the second absorbent layer, the seepage and absorption speed of urine is greatly improved.

[0012] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0013] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0014] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the flat structure of a diaper with zoned absorption function according to the present invention.

[0019] Figure 2 This is a schematic diagram of the separation structure of the absorption core and the pleated layer with regional absorption function according to this utility model;

[0020] Explanation of key figure labels:

[0021] 1. The bottom layer of the diaper;

[0022] 11. Adhesion area;

[0023] 2. Absorbent core;

[0024] 21. First absorbent layer; 22. Second absorbent layer; 221. Rapid infiltration pores; 23. Enclosure;

[0025] 3. Wrinkles;

[0026] 31. Flow guide channel; 32. Absorbent cotton swab. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0028] Reference Figure 1-2 This utility model provides a diaper with zoned absorption function, including a bottom layer 1, an absorbent core 2, and a pleated layer 3.

[0029] The bottom layer 1 of the diaper can be any existing diaper shape, but in this embodiment it is preferably T-shaped. The bottom layer 1 of the diaper is composed of multiple layers. Its bottom layer is a waterproof layer, and the top layer is covered with a material for auxiliary absorption and then fixed with skin-friendly non-woven fabric. At the same time, it should have the elastic waistband required by the diaper, and two adhesive parts 11 are symmetrically arranged on the left and right sides of the elastic waistband. The adhesive parts 11 are in the shape of an isosceles trapezoid to balance the traction force on the elastic waistband during the adhesion process.

[0030] The absorbent core 2 is placed inside the bottom layer 1 of the diaper. The absorbent core 2 includes a first absorbent layer 21 and a second absorbent layer 22. The second absorbent layer 22 is located above the first absorbent layer 21, and its length and width are both smaller than those of the first absorbent layer 21. To ensure the speed of urine seepage while preventing side leakage of the diaper, a barrier 23 is provided around the top of the first absorbent layer 21, and quick-seepage holes 221 are provided on the side walls of the second absorbent layer 22. A mesh layer is covered on the quick-seepage holes 221. To make the absorbent core 2 fit the curve of the diaper better, its width at both sides is greater than its width at the middle.

[0031] The pleated layer 3 is located on top of the bottom layer 1 of the diaper and covers the absorbent core 2. It is formed by pressing together the non-woven fabric material reserved on the surface of the bottom layer 1 of the diaper. At the same time, the surface of the pleated layer 3 is provided with several non-linear guide grooves 31, which are serrated in this embodiment. In order to increase the absorption effect in the guide grooves 31, absorbent cotton swabs 32 are filled between adjacent guide grooves 31.

[0032] Working principle: Urine enters the surface of the top layer of the diaper and first spreads rapidly in the pleated layer 3. The absorbent core 2 in the area where urine is concentrated is hollow, and most of the urine enters the cavity formed by the barrier 23 and the second absorbent layer 22 and is quickly absorbed by the side wall of the second absorbent layer 22.

[0033] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0034] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0035] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A diaper with zoned absorption function, characterized in that, The diaper includes a bottom layer, an absorbent core, and a pleated layer. The absorbent core is placed inside the bottom layer of the diaper. The absorbent core includes a first absorbent layer and a second absorbent layer. The second absorbent layer is located above the first absorbent layer and its length and width are both smaller than the first absorbent layer. The pleated layer is located on top of the bottom layer of the diaper and covers the absorbent core. The surface of the pleated layer is provided with a plurality of non-linear guide grooves.

2. The diaper with zoned absorption function according to claim 1, characterized in that, Absorbent cotton swabs are placed between adjacent flow channels.

3. The diaper with zoned absorption function according to claim 1, characterized in that, The top of the first absorbent layer is surrounded by a barrier.

4. The diaper with zoned absorption function according to claim 3, characterized in that, The width of the second absorption layer is greater at the two sides than at the middle.

5. The diaper with zoned absorption function according to claim 4, characterized in that, The sidewall of the second absorbent layer is provided with quick-seepage pores, which are covered with a mesh layer.

6. The diaper with zoned absorption function according to claim 1, characterized in that, The bottom layer of the diaper includes two symmetrically arranged adhesive sections, which are in the shape of an isosceles trapezoid.