A liquid paper diaper

By introducing through-holes, diversion channels, and color-display structures into the diaper, the absorption speed and capacity are improved, solving the problems of slow absorption and unclear liquid level display in existing diapers, and improving the wearing comfort and leak-proof effect for infants and young children.

CN224557671UActive Publication Date: 2026-07-28HAINAN BEIER YOUPIN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing disposable diapers have poor absorbency and absorption speed, leading to skin problems in infants such as diaper rash, and they cannot effectively display the amount of liquid, making it inconvenient to change them in a timely manner.

Method used

A liquid diaper has been designed, comprising a surface structure, an absorbent layer structure, and a color-displaying structure. The surface structure has through holes, the absorbent layer structure consists of first and second absorbent layers with a guide groove and a guide channel at the connection point, and the color-displaying structure is used to display the liquid volume. Combined with hydrophobic and hydrophilic layer materials, the absorbency and absorption capacity are improved.

Benefits of technology

It improves the speed and capacity of water absorption, the color-coded structure helps determine the amount of liquid, enhances wearing comfort and leak-proof effect, and reduces the risk of skin problems and bacterial growth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of liquid paper diaper, it is related to paper diaper technical field, including front waist piece, paper diaper body and rear waist piece set in sequence, the paper diaper body includes surface layer structure, absorption layer structure, chromogenic structure and bottom structure, the surface layer structure is provided with through-hole, the absorption layer structure includes first absorption layer and second absorption layer, the first absorption layer is arranged in the outside of surface layer structure, the second absorption layer is arranged in the outside of first absorption layer, first absorption layer and the connecting place of second absorption layer are provided with first flow guide groove, first flow guide groove is provided with first flow guide channel, the chromogenic structure is between second absorption layer and bottom structure. The liquid paper diaper of the utility model can improve water absorption speed and water absorption capacity, and show liquid volume.
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Description

Technical Field

[0001] This utility model relates to the field of diaper technology, and in particular to a liquid diaper. Background Technology

[0002] Disposable diapers are a common item for the daily care of infants and young children. Because infants and young children have limited ability to express themselves, they cannot express when they urinate and / or defecate. Therefore, they may experience skin problems due to wearing damp diapers for a long time. In addition, due to the poor absorbency and absorption speed of existing diapers, skin problems such as diaper rash often occur. Utility Model Content

[0003] The purpose of this invention is to provide a liquid diaper that solves the problems existing in the prior art, improves the absorption speed and absorption capacity, and displays the liquid volume.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a liquid diaper, comprising a front waist piece, a diaper body, and a back waist piece arranged sequentially. The diaper body includes a surface structure, an absorbent layer structure, a color-developing structure, and a bottom layer structure. The surface structure has through holes. The absorbent layer structure includes a first absorbent layer and a second absorbent layer. The first absorbent layer is disposed outside the surface structure, and the second absorbent layer is disposed outside the first absorbent layer. A first flow channel is provided at the connection between the first absorbent layer and the second absorbent layer. A first flow channel is provided within the first flow channel. The color-developing structure is located between the second absorbent layer and the bottom layer structure.

[0006] Preferably, the surface structure includes a hydrophobic layer and a hydrophilic layer, the hydrophobic layer being located inside the hydrophilic layer, and the through-hole penetrating the hydrophobic layer and the hydrophilic layer.

[0007] Preferably, the first absorbent layer is made of a liquid material.

[0008] Preferably, the second absorption layer is provided with a second guide groove, and there are several second absorption layers, with the second guide grooves on adjacent second absorption layers arranged vertically.

[0009] Preferably, the color-developing structure extends from the front end of the diaper body to the rear end of the diaper body.

[0010] Preferably, the edges of the diaper body are provided with a water-resistant structure.

[0011] Preferably, the front waist piece is provided with a navel opening, which corresponds to the position of the navel.

[0012] Preferably, the front waist panel has a front waist elastic area, and the rear waist panel has a rear waist elastic area.

[0013] Preferably, the rear waist piece has connecting portions on both sides for connecting with the front waist piece.

[0014] Preferably, the diaper body has three-dimensional leak-proof guards on both sides.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This invention relates to a liquid diaper with a surface structure featuring through-holes that guide liquid into the absorbent layer. A first channel at the junction of the first and second absorbent layers further guides the liquid, allowing for rapid absorption by both layers. Furthermore, the inclusion of both absorbent layers enhances absorption efficiency. The color-changing structure of this invention displays the amount of liquid inside the diaper, helping caregivers determine when a diaper change is necessary. Attached Figure Description

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

[0018] Figure 1 This is a front view of the liquid diaper of this utility model;

[0019] Figure 2 This is a cross-sectional view of the surface structure of this utility model;

[0020] Figure 3 This is a front view of the first and second absorbent layers of this utility model;

[0021] Figure 4 This is a schematic diagram of the first guide groove and the first guide channel of this utility model;

[0022] Figure 5 Schematic diagram of the second absorber layer of this utility model Figure 1 ;

[0023] Figure 6 Schematic diagram of the second absorber layer of this utility model Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the color-developing structure of this utility model;

[0025] In the diagram: 1-front waistband, 2-diaper body, 3-back waistband, 4-surface structure, 5-through hole, 6-first absorbent layer, 7-second absorbent layer, 8-first diversion channel, 9-first diversion channel, 10-hydrophobic layer, 11-hydrophilic layer, 12-second diversion channel, 13-connecting part, 14-water-blocking structure, 15-three-dimensional leak-proof guard, 16-umbilical opening, 17-elastic area of ​​front waistband, 18-elastic area of ​​back waistband, 19-bottom layer structure, 20-color-developing structure. Detailed Implementation

[0026] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The purpose of this invention is to provide a liquid diaper that solves the problems existing in the prior art, improves the absorption speed and absorption capacity, and displays the liquid volume.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 7 As shown, this embodiment provides a liquid diaper, including a front waist piece 1, a diaper body 2, and a back waist piece 3 arranged sequentially. The diaper body 2 includes a surface structure 4, an absorbent layer structure, a color-developing structure 20, and a bottom layer structure 19. The surface structure 4 is provided with through holes 5. The absorbent layer structure includes a first absorbent layer 6 and a second absorbent layer 7. The first absorbent layer 6 is disposed on the outside of the surface structure 4, and the second absorbent layer 7 is disposed on the outside of the first absorbent layer 6. A first flow channel 8 is provided at the connection between the first absorbent layer 6 and the second absorbent layer 7. A first flow channel 9 is provided in the first flow channel 8. The color-developing structure 20 is located between the second absorbent layer 7 and the bottom layer structure 19.

[0030] Specifically, in this embodiment, the surface structure 4 includes a hydrophobic layer 10 and a hydrophilic layer 11. The hydrophobic layer 10 is located inside the hydrophilic layer 11. The through hole 5 penetrates the hydrophobic layer 10 and the hydrophilic layer 11. The hydrophobic layer 10 has hydrophobic properties, and the hydrophilic layer 11 has hydrophilic properties. The hydrophobic layer 10 guides liquid into the through hole 5 and contacts the first absorbent layer 6 and / or the second absorbent layer 7 under the action of the hydrophilic layer 11.

[0031] In this embodiment, the first absorbent layer 6 is made of a liquid material, which is a prior art material called FlexFoam™. It is made by liquefying pure water and nano-molecular polymers through emulsification technology, and has a porous structure similar to memory foam.

[0032] In this embodiment, the size of the first absorbent layer 6 is less than or equal to the size of the second absorbent layer 7. When the size of the first absorbent layer 6 is less than the size of the second absorbent layer 7, the first absorbent layer 6 is located in the middle of the second absorbent layer 7. The first guide groove 8 is recessed, and a first guide channel 9 is provided in the first guide groove 8. The first guide channel 9 is connected to the first absorbent layer 6 and the second absorbent layer 7 respectively. When the liquid comes into contact with the first guide groove 8, the first guide channel 9 in the first guide groove 8 guides the liquid, so that the liquid can be fully absorbed by the first absorbent layer 6, and can also guide the liquid to the second absorbent layer 7 for full absorption by the second absorbent layer 7. The arrangement of the first guide groove 8 and the first guide channel 9 prevents the liquid from accumulating, reduces the liquid absorption time, and improves comfort.

[0033] In this embodiment, the second absorbent layer 7 is made of liquid material or other absorbent material. A second guide groove 12 is provided on the second absorbent layer 7. There are several second absorbent layers 7, with the second guide grooves 12 on adjacent second absorbent layers 7 arranged vertically. The second absorbent layers 7 are stacked sequentially. The innermost second absorbent layer 7 is in contact with the first absorbent layer 6, and the outermost second absorbent layer 7 is in contact with the color-developing structure 20. The second guide grooves 12 on the second absorbent layer 7 also serve to guide the liquid. The vertical arrangement of the second guide grooves 12 on adjacent second absorbent layers 7 allows the liquid to be absorbed by the second absorbent layer 7 more quickly, increasing the absorption speed and further improving comfort.

[0034] In this embodiment, the color-developing structure 20 extends from the front end of the diaper body 2 to the rear end of the diaper body 2. The color-developing structure 20 is a color-developing ink. The color-developing ink forms patterns or text. The color-developing ink changes color when it comes into contact with water. By observing whether the color-developing ink changes color, the amount of liquid in the diaper can be determined, thereby helping caregivers determine whether the diaper needs to be changed.

[0035] In this embodiment, a water-blocking structure 14 is provided on the edge of the diaper body 2. The water-blocking structure 14 is located outside the surface structure 4, absorbent layer structure, and color-developing structure 20, and is formed as a closed loop around the outside of the surface structure 4, absorbent layer structure, and color-developing structure 20. The water-blocking structure 14 is made of solid water-blocking material through pressing or composite, and the cross-section of the water-blocking structure 14 is convex. The water-blocking structure 14 ensures that liquid will not flow out to the front waist piece 1 and the back waist piece 3, thus achieving a leak-proof effect.

[0036] In this embodiment, three-dimensional leak-proof guards 15 are provided on both sides of the diaper body 2. The three-dimensional leak-proof guards 15 can prevent liquid from leaking out of the diaper body 2 in the width direction, thus preventing side leakage.

[0037] In this embodiment, the front waist piece 1 is provided with a navel opening 16, which corresponds to the navel position. The navel opening 16 allows the infant's navel to be exposed, keeping the navel dry and reducing the chance of bacteria growing in the navel area.

[0038] In this embodiment, the front waist piece 1 and the back waist piece 3 are integrally formed or connected to the bottom layer structure 19. The front waist piece 1, the back waist piece 3 and the bottom layer structure 19 are all made of polymer materials. The front waist piece 1 is provided with a front waist elastic area 17 and the back waist piece 3 is provided with a back waist elastic area 18. The provision of the front waist elastic area 17 and the back waist elastic area 18 makes the front waist piece 1 and the back waist piece 3 elastic, so that the diaper fits better when worn, can prevent liquid leakage, and can improve wearing comfort.

[0039] In this embodiment, the rear waist piece 3 is provided with connecting parts 13 on both sides for connecting with the front waist piece 1. The connecting parts 13 are elastic or non-elastic bands and are provided with hook and loop fasteners. The hook and loop fasteners can be directly connected to the front waist piece 1 or connected by hook and loop fasteners provided on the front waist piece 1.

[0040] The liquid diaper surface structure 4 of this embodiment is provided with through holes 5, which can guide liquid into the absorbent layer structure. The first guide groove 8 at the connection between the first absorbent layer 6 and the second absorbent layer 7 of the absorbent layer structure can further guide the liquid, so that the liquid is quickly absorbed by the first absorbent layer 6 and the second absorbent layer 7. The second guide grooves 12 of each second absorbent layer 7 are vertically arranged, which further enhances the liquid guiding effect. This embodiment improves the liquid absorption speed and enhances wearing comfort through the above means. The color display structure 20 of this embodiment can be used to display the amount of liquid in the diaper, thereby helping caregivers to determine whether the diaper needs to be changed. The water-resistant structure 14 and the three-dimensional leak-proof guard 15 of this embodiment can prevent leakage and avoid the discomfort caused by liquid leakage. The navel opening 16 provided in the front waist piece 1 of this embodiment can reduce the chance of bacteria growing in the navel area. The elastic area 17 of the front waist and the elastic area 18 of the back waist of this embodiment can improve the fit and comfort of wearing, and further prevent liquid leakage.

[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid diaper, characterized in that: The diaper includes a front waistband, a diaper body, and a back waistband arranged sequentially. The diaper body includes a surface structure, an absorbent layer structure, a color-developing structure, and a bottom layer structure. The surface structure has through holes. The absorbent layer structure includes a first absorbent layer and a second absorbent layer. The first absorbent layer is disposed outside the surface structure, and the second absorbent layer is disposed outside the first absorbent layer. A first flow channel is provided at the connection between the first absorbent layer and the second absorbent layer. A first flow channel is provided within the first flow channel. The color-developing structure is located between the second absorbent layer and the bottom layer structure.

2. The liquid diaper according to claim 1, characterized in that: The surface structure includes a hydrophobic layer and a hydrophilic layer, with the hydrophobic layer located inside the hydrophilic layer, and the through-hole penetrating both the hydrophobic layer and the hydrophilic layer.

3. The liquid diaper according to claim 1, characterized in that: The first absorbent layer is made of a liquid material.

4. The liquid diaper according to claim 1, characterized in that: The second absorption layer is provided with a second guide groove, and there are several second absorption layers. The second guide grooves on adjacent second absorption layers are arranged vertically.

5. The liquid diaper according to claim 1, characterized in that: The color-developing structure extends from the front end of the diaper body to the rear end of the diaper body.

6. The liquid diaper according to claim 1, characterized in that: The edges of the diaper body are provided with a water-resistant structure.

7. The liquid diaper according to claim 1, characterized in that: The front waist panel is provided with a navel opening, which corresponds to the navel position.

8. The liquid diaper according to claim 1, characterized in that: The front waist panel has a front waist elastic area, and the rear waist panel has a rear waist elastic area.

9. The liquid diaper according to claim 1, characterized in that: The rear waist piece has connecting parts on both sides for connecting with the front waist piece.

10. The liquid diaper according to claim 1, characterized in that: The diaper body has three-dimensional leak-proof guards on both sides.