An incontinence pad

Abstract

This utility model relates to the field of hygiene care products technology, and discloses a diaper pad, comprising a skin-friendly dry layer, a water-collecting and hydrophobic layer, and a breathable and water-proof layer arranged sequentially from top to bottom. The water-collecting and hydrophobic layer includes a perforated water-permeable support layer with a trapezoidal lower surface and a first absorbent with a trapezoidal upper surface. A truncated ring absorbent is provided between the water-permeable support layer and the first absorbent, and a water-collecting groove structure is formed on the inner side of the truncated ring absorbent. A hydrophobic channel that diffuses outwards is provided between the first absorbent and the truncated ring absorbent. The system allows for rapid urine leakage, minimizes the water-transfer area of ​​the skin-friendly dry layer, increases its softness and dryness, and restores softness and dryness to the water-transfer areas, reducing and preventing bacterial infections caused by a humid environment. The water-collecting and hydrophobic layer creates a central water-collecting area, a lower drainage area, and an edge water-storage area, improving the overall utilization rate of the product. A dual temperature and pressure difference promotes the discharge of hot and humid gases through the breathable and water-proof layer, and the secondary absorption structure of the absorbent ensures that urine is fully absorbed and stored within the absorbent, reducing and preventing backflow.

Description

Technical Field

[0001] This utility model belongs to the technical field of hygiene care products and relates to a diaper pad. Background Technology

[0002] A diaper pad is a disposable sanitary product used to absorb urine and other liquids, keeping surfaces dry and bedding clean. It is primarily suitable for infant care, gynecological examinations, postpartum women and women during menstruation, the elderly, paralyzed patients with urinary or fecal incontinence, and hospital surgical patients requiring special care. The product is mainly composed of non-woven fabric, fluff pulp, polymer, and PE film. Depending on the user group, diaper pads can be divided into infant diaper pads, maternity diaper pads, and adult diaper pads. Infant diaper pads are mainly used for newborns to isolate urine, ensuring the mattress or bed underneath does not get wet; therefore, they are also called diaper pads. Maternity diaper pads are essential for postpartum women and are also called postpartum pads. Immediately after childbirth, there is a large amount of lochia discharge for the first two weeks, which cannot be met by regular sanitary napkins; therefore, specialized maternity diaper pads are needed. Maternity diaper pads are generally used immediately after childbirth and throughout the postpartum period when bleeding and lochia are discharged. Adult diaper pads are mainly used for post-operative patients, paralyzed individuals, and those unable to care for themselves.

[0003] The utility model patent with announcement number CN213031040U discloses an infant diaper pad, which includes an antibacterial gauze layer, an absorbent layer, a waterproof layer and a mesh layer. It uses ice silk fabric as the colored film layer, combined with antibacterial gauze made of nano-silver particle fiber and bamboo fiber, absorbent layer made of jute and ramie fiber, and waterproof layer made of high-quality cotton, to form a multi-layer structure to improve breathability and water absorption and waterproofing effect.

[0004] The utility model patent with announcement number CN221731174U discloses a dual-core diaper pad. A polymer layer is added to the wood pulp of the cotton core layer and mixed with the wood pulp to form a dual core. This increases the particle porosity to improve fluffiness and softness, absorption speed and reverse seepage performance. At the same time, an adhesive layer and anti-slip protrusions are set on the diaper pad to fix the position and increase friction.

[0005] The utility model patent with announcement number CN108749166B discloses a nursing pad with the function of preventing dermatitis. The nursing pad adopts a three-layer structure design, including a skin-friendly dry layer, an air hub layer and a breathable and water-proof layer. It uses the principle of forward flow and reverse absorption, and the principle of gas flow caused by temperature difference and pressure difference, to quickly absorb liquid and expel hot and humid gas, prevent back seepage, and thus keep the surface of the nursing pad dry.

[0006] The aforementioned existing technologies have improved the absorbency, breathability, and backflow prevention of diaper pads, but there are still shortcomings in how to make the surface of the diaper pad soft and dry, reducing the risk of skin bacterial infections, dermatitis, eczema, and pressure sores caused by moisture. Utility Model Content

[0007] The purpose of this utility model is to provide a diaper pad that, while ensuring the pad has permeability and absorption functions, keeps it soft and dry during use, thereby avoiding skin bacterial infections, dermatitis, eczema, pressure sores, and other dermatitis-related diseases caused by moisture.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A diaper pad includes, from top to bottom, a skin-friendly dry layer, a water-retaining and hydrophobic layer, and a breathable and waterproof layer.

[0010] The skin-friendly and dry layer is made of skin-friendly non-woven fabric;

[0011] The water collection and hydrophobic layer includes a perforated water-permeable support layer with a trapezoidal lower surface and a first absorber with a trapezoidal upper surface. A truncated ring absorber is provided between the permeable support layer and the first absorber. A water-collecting groove structure is formed inside the truncated ring absorber. A hydrophobic channel that diffuses to the surrounding area is provided between the first absorber and the truncated ring absorber.

[0012] The breathable and waterproof layer includes a breathable membrane layer with anti-reverse seepage function, such as PE membrane or OPP colored film, which can both ensure air circulation and prevent urine from passing through.

[0013] Furthermore, the annular truncated absorber includes an annular second absorber and an annular third absorber, and hydrophobic channels that diffuse outwards are provided between the first absorber, the second absorber, and the third absorber.

[0014] The cross-sectional area of ​​the hydrophobic channel gradually increases from the center of the first absorber towards the periphery.

[0015] Furthermore, the second absorber is composed of multiple absorber units spliced ​​together.

[0016] A gap is left at the joint of the absorber unit.

[0017] Furthermore, the first absorbent comprises an upper wood pulp layer and a lower wood pulp and SAP composite layer.

[0018] The annular absorber comprises an upper wood pulp layer, a middle SAP layer, and a lower wood pulp and SAP composite layer.

[0019] The beneficial effects of this utility model compared to the prior art include:

[0020] The water-collecting and hydrophobic layer of this invention adopts a trapezoidal hollow permeable support layer, which forms a hollow support at the top to facilitate air and water permeability, allowing urine to flow smoothly down. The leaked urine falls into the water-collecting groove formed by the first absorber and the truncated ring absorber, causing the urine to converge towards the center, reducing or avoiding outward diffusion of urine during leakage and causing excessive wetting of the skin-friendly dry layer. The urine leakage speed is fast, and the water-passing area of ​​the skin-friendly dry layer is small, thereby increasing the soft and dry area of ​​the skin-friendly dry layer. The water absorbed by the water-passing area of ​​the skin-friendly dry layer is guided downward by the double-sided hollow fabric fibers and converges into the water-collecting groove or is absorbed by the absorber, so that the water-passing area of ​​the skin-friendly dry layer is restored to softness and dryness. After urine collects in the water-collecting groove, it diffuses to the surrounding area of ​​the first absorber and the annular absorber through the hydrophobic channel. The water-collecting and hydrophobic layer thus forms the effect of water collection in the upper center, water diversion and hydrophobicity in the lower part, and water storage at the edge. On the one hand, it reduces or avoids excessive wetting area of ​​the skin-friendly dry layer caused by top diffusion. On the other hand, through rapid diversion and diffusion adsorption in the lower part, it accelerates the diffusion and absorption of urine, and improves the overall utilization rate of the product.

[0021] In addition, the water-collecting and hydrophobic layer adopts a top trapezoidal breathable and water-permeable structure, which also has the function of isolating and preventing back osmosis. Combined with the lower trapezoidal first absorber and the ring-shaped absorber, the hydrophobic channel gradually increases from the center to the periphery, so as to achieve a dual temperature difference and pressure difference to make the hot and humid gas expel through the breathable and water-proof layer. Combined with the secondary absorption structure design of the absorber, the urine is fully absorbed and stored in the absorber, reducing and avoiding back osmosis.

[0022] The new type of diaper pad has a small surface area for water absorption and storage in its skin-friendly dry layer, which is dispersed around the perimeter. This makes it easier to keep the skin-friendly dry layer dry and soft, reducing and avoiding bacterial infections caused by a humid environment. Attached Figure Description

[0023] Figure 1 This is a top view of a diaper pad according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the layered structure of a diaper pad according to an embodiment of the present utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the split structure of the hydrophobic layer in the water collection system;

[0026] Figure 4 for Figure 2 A top view of the structure of a first absorber. Detailed Implementation

[0027] 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. Example 1

[0028] See Figure 1-4 A diaper pad includes, from top to bottom, a skin-friendly dry layer 1, a water-collecting and hydrophobic layer 2, and a breathable and waterproof layer 3. The skin-friendly dry layer 1 is made of skin-friendly non-woven fabric 11. The breathable and waterproof layer 3 includes a PE breathable membrane layer 31 with anti-backflow function, or it can be a single-layer membrane material or composite membrane material such as OPP colored film that can ensure air circulation and prevent urine from passing through.

[0029] The water-collecting and hydrophobic layer 2 includes a perforated water-permeable support layer 21 with a trapezoidal lower surface and a first absorber 22 with a trapezoidal upper surface. A truncated ring absorber 23 is provided between the water-permeable support layer 21 and the first absorber 22. A water-collecting groove structure is formed on the inner side of the truncated ring absorber 23. A hydrophobic channel 4 that diffuses to the surrounding area is provided between the first absorber 22 and the truncated ring absorber 23.

[0030] In this embodiment, the trapezoidal permeable support layer 21 can be made of double-sided permeable fabric or three-dimensional mesh fabric. The annular trapezoidal absorber 23 includes an annular second absorber 231 and an annular third absorber 232. The third absorber 232 is located outside the second absorber 231, and the height of the third absorber 232 is greater than the height of the second absorber 231, forming a stepped annular trapezoidal absorber 23. It cooperates with the first absorber 22 to form a trapezoidal water-gathering groove structure on its upper side. A hydrophobic channel 4 that diffuses outwards is provided between the first absorber 22, the second absorber 231, and the third absorber 232. See also Figure 2 and 4 The hydrophobic channel 4 extends outward in a stepped manner from the top edge of the first absorber 22 along the joint surface between the first absorber 22 and the second absorber 231 and the third absorber 232, and the cross-sectional area of ​​the hydrophobic channel 4 gradually increases from the center of the first absorber 22 towards the periphery. The first absorber 22, the second absorber 231, and the third absorber 232 form a stepped water-collecting groove on the upper part of the water-collecting and hydrophobic layer 2. In this embodiment, the hydrophobic channel 4 is disposed on the surface of the first absorber 22, or it can be disposed on the bottom surface and the side surface of the second absorber 231 and the third absorber 232, or corresponding matching groove structures can be disposed on the first absorber 22, the second absorber 231, and the third absorber 232 to form the hydrophobic channel 4.

[0031] During use, urine quickly leaks through the skin-friendly dry layer 11. Due to its small surface area, the urine converges towards the center in the water-gathering groove after leakage, reducing and preventing urine from spreading outwards and minimizing excessive wetting of the skin-friendly dry layer 1. This increases the soft and dry area of ​​the skin-friendly dry layer 1. Moisture in the water-bearing area of ​​the skin-friendly dry layer 1 is guided downwards by the double-sided perforated fabric fibers and gathered in the water-gathering groove or absorbed by the absorbent body, restoring softness and dryness to the water-bearing area and reducing and preventing bacterial infections caused by a humid environment. Furthermore, after urine absorption, hot and humid air is located in the lower part and around the absorbent body, while cool and humid air is located in the water-gathering groove structure where the perforated water-permeable support layer 21 is located. The cool and humid air in the upper water-gathering groove creates a pressure difference against the hot and humid air in the lower part. A pressure difference also exists between the inner and outer ends of the hydrophobic channel 4. This dual temperature and pressure difference promotes the discharge of hot and humid air through the breathable and waterproof layer of the diaper pad. In actual use, even if the pad is subjected to pressure and hot and humid gas reaches the water-gathering groove at the top, it will be smoothly discharged from the diaper pad under the breathable effect of the hollow water-permeable support layer 21.

[0032] Furthermore, the second absorbent 231 is composed of multiple absorbent units 2311 spliced ​​together. In this embodiment, the absorbent unit 2311 is formed by splicing four trapezoidal absorbent units 2311 together. A certain gap 2312 is left between adjacent absorbent units 2311 at the four corners of the second absorbent 2311, preferably 1-3mm. Rectangular and right-angled shapes or arc-shaped structures can also be used. The water-gathering groove is not limited to the rectangular structure shown in the figure, but can also be a circular or other stepped groove structure. The splicing gap 2312 of the absorbent units 2311 can serve as a flow channel to further promote the diffusion of urine to the third absorbent 232 on the outside.

[0033] Furthermore, the first absorber 22 includes an upper wood pulp layer 221 and a lower wood pulp and SAP composite layer 222, and the annular absorber 23 includes an upper wood pulp layer, a middle SAP layer and a lower wood pulp and SAP composite layer, wherein the wood pulp and SAP composite layer are mixed in a certain proportion.

[0034] Specifically, the second absorbent 231 or each absorbent unit 2311 includes an upper wood pulp layer 2315, a middle SAP layer 2314, and a lower wood pulp and SAP composite layer 2315. The third absorbent 232 includes an upper wood pulp layer 2323, a middle SAP layer 2322, and a lower wood pulp and SAP composite layer 2321. The third absorbent 232 and the second absorbent 231 or each absorbent unit 2311 are covered with a tissue paper layer, which improves the structural stability of each absorbent.

[0035] During the collection and diversion of urine, the upper wood pulp layer of each absorber will absorb a small amount of urine upon contact with it. More urine will disperse to the surroundings through the hydrophobic channels 4 and be absorbed by the wood pulp and SAP composite layer 2321. Subsequently, it will be absorbed and stored by the middle SAP (superabsorbent polymer) layer, which has a stronger absorption capacity. Furthermore, the water absorbed by the upper wood pulp layer will also be absorbed by the middle SAP layer, playing a secondary absorption role. This allows the upper wood pulp layer and the lower composite layer to retain and maintain a certain adsorption capacity. In actual use, even if there is some backflow due to compression or other conditions, the water can still be adsorbed through the wood pulp layer and the composite layer, preventing backflow to the skin-friendly dry layer 1.

[0036] This utility model of a diaper pad allows for rapid urine leakage. The pad features a central upper section for urine collection, a lower section for drainage and dispersion, and an edge for storage. The skin-friendly, dry layer has a small water-permeable area and a large dry area, resulting in high drying efficiency. This design effectively reduces and prevents bacterial infections caused by a humid environment, thus improving the overall performance.

[0037] The applicant used the sample product of this utility model to conduct the following verification comparison with a conventional product of a certain company:

[0038] All product specifications are 450mm*330mm.

[0039] Absorption time: Add 80ml of liquid at the center of the product, 5mm above the product, and time the time from the addition of liquid until the liquid on the surface is completely absorbed.

[0040] Water-permeable area and absorption / diffusion area of ​​the skin-friendly dry layer: Add 80ml of colored saline solution to the center of the product, measure and calculate the maximum water-permeable area ratio of the surface layer, and measure and calculate the absorption / diffusion area ratio five minutes after absorption. (The water-permeable area of ​​the skin-friendly dry layer includes the immersion area of ​​the skin-friendly dry layer, and is recorded as the proportion of the water-permeable area to the total area of ​​the skin-friendly dry layer; the absorption / diffusion area is recorded as the proportion of the water-absorbing area to the total area of ​​the water-collecting and hydrophobic layer.)

[0041] Comparison results: Table 1

[0042] Absorption time (s) Skin-friendly dry layer water-permeable area Absorption diffusion area Regular model 18 50% 65% This utility model sample 8 20% 95%

[0043] The antibacterial performance testing method disclosed in the utility model patent CN108749166B was used to test the antibacterial insulated pad of this application. The antibacterial rate test results are shown in Table 2.

[0044] Sample 1 Sample 2 Sample 3 Antibacterial rate 48% 62% 55%

[0045] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A diaper pad, characterized in that, It includes a skin-friendly dry layer, a water-collecting and hydrophobic layer and a breathable and water-proof layer arranged from top to bottom, wherein the skin-friendly dry layer is made of skin-friendly non-woven fabric; The water collection and hydrophobic layer includes a perforated water-permeable support layer with a trapezoidal lower surface and a first absorber with a trapezoidal upper surface. A truncated ring absorber is provided between the permeable support layer and the first absorber. A water-collecting groove structure is formed inside the truncated ring absorber. A hydrophobic channel that diffuses to the surrounding area is provided between the first absorber and the truncated ring absorber. The breathable and waterproof layer includes a breathable membrane layer with anti-reverse seepage function.

2. The nursing pad according to claim 1, characterized in that, The annular absorber includes an annular second absorber and an annular third absorber, and hydrophobic channels that diffuse outwards are provided between the first absorber and the second and third absorbers.

3. The nursing pad according to claim 1 or 2, characterized in that, The cross-sectional area of ​​the hydrophobic channel gradually increases from the center of the first absorber towards the periphery.

4. The nursing pad according to claim 1, characterized in that, The first absorber includes an upper wood pulp layer and a lower wood pulp and SAP composite layer.

5. The nursing pad according to claim 1, characterized in that, The annular absorber comprises an upper wood pulp layer, a middle SAP layer, and a lower wood pulp and SAP composite layer.

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