Moisture absorption product and hygienic product
By using a double-layer absorbent layer and an impermeable bottom membrane design, the problem of the heavy absorbent layer at the waist causing inconvenience to movement is solved, achieving lightweight and efficient absorption and preventing leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YINYIN CO LTD
- Filing Date
- 2024-12-26
- Publication Date
- 2026-05-15
AI Technical Summary
The current design of the absorbent waist layer results in heavy diapers, making it inconvenient for users to move around during use.
It adopts a double-layer structure with a lower and upper moisture-absorbing layer, combined with the design of interlayer non-woven fabric and outer non-woven fabric. It uses activated carbon particles, super absorbent resin and fluff pulp material, and sets up an inner recess and a liquid-impermeable bottom membrane to improve absorption efficiency and prevent leakage.
It reduces the weight of the diaper, increases absorbency and flowability, prevents liquid leakage, and is suitable for use in different positions.
Smart Images

Figure CN224235669U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene products technology, and in particular to a moisture-absorbing product and hygiene products. Background Technology
[0002] Currently, Chinese patent application number CN2024210807730 discloses a waistband leak-proof diaper, which includes, from bottom to top, a base layer, a liquid-impermeable bottom layer, an absorbent layer, a hydrophobic layer, a waist absorbent layer, and elastic guards located on both sides of the hydrophobic layer. The base layer has a front waist area and a back waist area on its upper and lower sides, and an absorbent area in the middle of the base layer. The base layer has multiple elastic components located in the front waist area and the back waist area. This discloses the waistband leak-proof diaper applied for by the applicant. However, during use, because the waist absorbent layer is designed as a single piece, it is heavy and inconvenient for users to move around during daily use. Summary of the Invention
[0003] Therefore, in view of the above problems, this utility model proposes a moisture-absorbing product and hygiene product, which solves the technical problem that the existing waist absorbent layer is heavy and inconvenient for users to move around during daily use.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a moisture-absorbing product, comprising a lower moisture-absorbing layer, an upper moisture-absorbing layer disposed above the lower moisture-absorbing layer, a non-woven fabric separating the lower moisture-absorbing layer and the upper moisture-absorbing layer, an outer non-woven fabric for covering the lower moisture-absorbing layer and the upper moisture-absorbing layer, and a first adhesive backing disposed on the bottom surface of the outer non-woven fabric. The lower moisture-absorbing layer and the upper moisture-absorbing layer are provided with a concave portion on one side, and the outer non-woven fabric is provided with a first liquid-impermeable bottom film in the area from the middle to the other side.
[0005] Furthermore, the upper and lower moisture-absorbing layers are composed of activated carbon particles, highly absorbent resin, and fluff pulp.
[0006] Furthermore, a first hydrophilic fiber is provided between the top surface of the lower absorbent layer and the interlayer nonwoven fabric.
[0007] A moisture-absorbing sanitary product includes a trouser body, a front waistband at the front end of the trouser body, a back waistband at the rear end of the trouser body, an absorbent portion disposed between the front waistband and the back waistband, multiple first elastic bands disposed on the front waistband, multiple second elastic bands disposed on the back waistband, elastic guards disposed on both sides of the absorbent portion, first moisture-absorbing products disposed on the upper and lower sides of the front waistband and the back waistband, and second moisture-absorbing products disposed at intervals in the middle of the first moisture-absorbing products. The lateral length of the second moisture-absorbing product is smaller than that of the first moisture-absorbing product. The trouser body has moisture-absorbing portions at the ends of the front waistband and the back waistband. The front waistband has a second liquid-impermeable bottom film in the area of the first moisture-absorbing product, the second moisture-absorbing product, and the moisture-absorbing portion. The back waistband has a third liquid-impermeable bottom film in the area of the first moisture-absorbing product, the second moisture-absorbing product, and the moisture-absorbing portion.
[0008] Furthermore, the moisture-absorbing part includes a nonwoven fabric covering, a water-absorbing resin disposed on the top surface of the nonwoven fabric covering, a second hydrophilic fiber disposed on the top surface of the water-absorbing resin, and fluff pulp disposed on the top surface of the hydrophilic fiber. The nonwoven fabric covering is provided with a second adhesive on the side near the water-absorbing resin.
[0009] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:
[0010] This absorbent product features a strip-shaped design that significantly reduces weight compared to the original one-piece design. With traditional diapers, when urine reaches the waist absorbent layer, the absorption area is relatively fixed. Once a certain area becomes saturated, the liquid tends to leak downwards, resulting in poor drainage. This strip-shaped absorbent product, however, collects any unabsorbed liquid on the concave portion and diffuses laterally. When the lower and upper absorbent layers at a certain location become saturated, the first impermeable bottom membrane prevents leakage. Furthermore, the strip-shaped design ensures good lateral drainage and diffusion. The double-layer structure of the lower and upper absorbent layers maximizes absorbency while reducing volume and weight. Attached Figure Description
[0011] Figure 1 This is a schematic cross-sectional view of the moisture-absorbing product of this utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the moisture-absorbing sanitary product of this utility model;
[0013] Figure 3 This is a schematic diagram of the structure of the moisture-absorbing sanitary product of this utility model;
[0014] Figure 4 This is a schematic cross-sectional view of the moisture-absorbing part structure of this utility model. Detailed Implementation
[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0016] refer to Figures 1 to 4 This embodiment provides a moisture-absorbing product, including a lower moisture-absorbing layer 1, an upper moisture-absorbing layer 2 disposed above the lower moisture-absorbing layer 1, a non-woven fabric 3 separating the lower moisture-absorbing layer 1 and the upper moisture-absorbing layer 2, an outer non-woven fabric 4 for covering the lower moisture-absorbing layer 1 and the upper moisture-absorbing layer 2, and a first adhesive 5 disposed on the bottom surface of the outer non-woven fabric 4. The lower moisture-absorbing layer 1 and the upper moisture-absorbing layer 2 are provided with a concave portion 6 on one side, and the outer non-woven fabric 4 is provided with a first liquid-impermeable bottom film 7 in the area from the middle to the other side.
[0017] The upper absorbent layer 2 and the lower absorbent layer 1 are composed of activated carbon particles, super absorbent resin and fluff pulp, and have good liquid absorption performance. The ratio of super absorbent resin and fluff pulp and the manufacturing process are existing technologies and will not be described in detail here.
[0018] A first hydrophilic fiber 8 is provided between the top surface of the lower absorbent layer 1 and the interlayer nonwoven fabric 3.
[0019] Because the first hydrophilic fiber has high hygroscopicity, when urine is in the concave part of the outer nonwoven fabric, the first hydrophilic fiber guides some of the liquid downwards, allowing the right and side positions of the upper absorbent layer of the lower absorbent layer to quickly absorb the liquid in the concave part. Furthermore, since the first hydrophilic fiber and the upper absorbent layer of the lower absorbent layer are of the same length, the absorbed liquid is also diffused laterally to both sides, improving the guiding effect of the absorbent product and preventing the absorbent product from becoming oversaturated in one part. The interlayer nonwoven fabric adheres to the first hydrophilic fiber, and the side of the first hydrophilic fiber away from the first adhesive is the part that fits against the human body, which can prevent backflow after absorption by the first hydrophilic fiber and the lower absorbent layer.
[0020] A moisture-absorbing sanitary product comprising the aforementioned moisture-absorbing material, including a trouser body 100, a front waistband 200 located at the front end of the trouser body 100, a back waistband 300 located at the rear end of the trouser body 100, an absorbent portion 400 disposed between the front waistband 200 and the back waistband 300, multiple first elastic bands 500 disposed on the front waistband 200, multiple second elastic bands 600 disposed on the back waistband 300, elastic guards 700 disposed on both sides of the absorbent portion 400, first moisture-absorbing material 800 disposed on the upper and lower sides of the front waistband 200 and the back waistband 300, and a second moisture-absorbing material 900 spaced apart in the middle of the first moisture-absorbing material 800. The second moisture-absorbing product 900 has a smaller lateral length than the first moisture-absorbing product 800. The trouser body 100 has moisture-absorbing portions 910 at both ends of the front waistband 200 and the back waistband 300. The front waistband 200 has a second liquid-impermeable bottom film 920 in the area of the first moisture-absorbing product 800, the second moisture-absorbing product 900, and the moisture-absorbing portion 910. The back waistband 300 has a third liquid-impermeable bottom film 930 in the area of the first moisture-absorbing product 800, the second moisture-absorbing product 900, and the moisture-absorbing portion 910. The internal structure of the first moisture-absorbing product 800, the second moisture-absorbing product 900, and the moisture-absorbing portion 910 is the same as that of the aforementioned moisture-absorbing product.
[0021] During use, due to the spacing between the first and second absorbent products, when liquid flows onto the front or back waistband, it will be laterally guided and absorbed by the first or second absorbent products. Since the second and third impermeable bottom films are located in the area between the first and second absorbent products, even if urine is in the area between the first and second absorbent products, it will flow to the nearby first and second absorbent products through the guidance, thus reducing the weight compared to the original integrated absorbent layer.
[0022] The moisture-absorbing part includes a nonwoven fabric 901, a water-absorbing resin 902 disposed on the top surface of the nonwoven fabric 901, a second hydrophilic fiber 903 disposed on the top surface of the water-absorbing resin 902, and fluff pulp 904 disposed on the top surface of the hydrophilic fiber. The nonwoven fabric 901 is provided with a second adhesive 905 on the side near the water-absorbing resin 902.
[0023] The applicant's proposed waistband leak-proof diaper contains highly absorbent resin, which can cause discomfort for some users when they lie on their side because the waist comes into contact with the absorbent layer. By designing a moisture-absorbing section with a thickness greater than that of the first moisture-absorbing product, the iliac crest of the human body comes into contact with the fluff pulp area of the moisture-absorbing section when the human body lies on its side. Since the absorbent resin is distributed between the non-woven fabric and the hydrophilic fibers, it is less likely to cause discomfort to the iliac crest area.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0027] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0028] 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 moisture-absorbing product, characterized in that, It includes a lower absorbent layer (1), an upper absorbent layer (2) disposed above the lower absorbent layer (1), a nonwoven fabric (3) separating the lower absorbent layer (1) and the upper absorbent layer (2), an outer nonwoven fabric (4) for covering the lower absorbent layer (1) and the upper absorbent layer (2), and a first adhesive backing (5) disposed on the bottom surface of the outer nonwoven fabric (4). The lower absorbent layer (1) and the upper absorbent layer (2) are provided with a concave portion (6) on one side, and the outer nonwoven fabric (4) is provided with a first liquid-impermeable bottom film (7) in the area from the middle to the other side.
2. The moisture-absorbing product according to claim 1, characterized in that: The upper absorbent layer (2) and the lower absorbent layer (1) are composed of activated carbon particles, super absorbent resin and fluff pulp.
3. The moisture-absorbing product according to claim 1, characterized in that: A first hydrophilic fiber (8) is provided between the top surface of the lower absorbent layer (1) and the interlayer nonwoven fabric (3).
4. A sanitary product comprising the moisture-absorbing article according to any one of claims 1 to 3, characterized in that: The pant body (100) includes a front waistband (200) at the front end of the pant body (100), a back waistband (300) at the rear end of the pant body (100), an absorbent portion (400) between the front waistband (200) and the back waistband (300), multiple first elastic bands (500) on the front waistband (200), multiple second elastic bands (600) on the back waistband (300), elastic guards (700) on both sides of the absorbent portion (400), first moisture-absorbing products (800) on the upper and lower sides of the front waistband (200) and the back waistband (300), and a spaced portion in the middle of the first moisture-absorbing products (800). The second moisture-absorbing product (900) has a lateral length dimension smaller than that of the first moisture-absorbing product (800). The trouser body (100) has moisture-absorbing parts (910) at both ends of the front waistband (200) and the back waistband (300). The front waistband (200) has a second liquid-impermeable bottom film (920) in the area of the first moisture-absorbing product (800), the second moisture-absorbing product (900) and the moisture-absorbing part (910). The back waistband (300) has a third liquid-impermeable bottom film (930) in the area of the first moisture-absorbing product (800), the second moisture-absorbing product (900) and the moisture-absorbing part (910).
5. The sanitary product according to claim 4, characterized in that: The moisture-absorbing part (910) includes a nonwoven fabric (901), a water-absorbing resin (902) disposed on the top surface of the nonwoven fabric (901), a second hydrophilic fiber (903) disposed on the top surface of the water-absorbing resin (902), and fluff pulp (904) disposed on the top surface of the hydrophilic fiber. The nonwoven fabric (901) is provided with a second adhesive (905) on the side near the water-absorbing resin (902).