CN211911996U - Waterproof breathable structure and disposable absorbent product - Google Patents
Waterproof breathable structure and disposable absorbent product Download PDFInfo
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- CN211911996U CN211911996U CN202020112031.7U CN202020112031U CN211911996U CN 211911996 U CN211911996 U CN 211911996U CN 202020112031 U CN202020112031 U CN 202020112031U CN 211911996 U CN211911996 U CN 211911996U
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Abstract
The utility model provides a waterproof and breathable structure and a disposable absorption product, which solves the technical problem that the PE film is arranged at the bottom of the core body, can meet the waterproof requirement and has poor breathability; the device sets up in the lower part of core, and it includes ventilative layer, ventilative layer down and the layer that absorbs water, wherein: the water absorption layer is arranged between the upper breathable layer and the lower breathable layer; the water absorption layer is of a single-layer structure or a double-layer structure and comprises a water absorption material and a bearing body for bearing the water absorption material; the disposable absorbent article includes the waterproof breathable structure described above. The utility model realizes the function of liquid separation and has good air permeability through the upper air permeable layer and the lower air permeable layer; in order to prevent the bottom from being wet, the middle water absorption layer is utilized to absorb water vapor penetrating through the gap of the upper breathable layer, the penetrating water vapor is prevented from being condensed into small water drops when meeting air, the using effect is influenced, and the upper breathable layer and the lower breathable layer are combined with the water absorption layer in the middle to form a high-breathability and watertight multilayer structure.
Description
Technical Field
The utility model belongs to the technical field of disposable absorbent article technique and specifically relates to a waterproof ventilative structure and disposable absorbent article are related to.
Background
The main structure of the current disposable absorbent products (paper diapers, sanitary towels and the like) is divided into four parts, namely a surface layer, an absorption layer, a waterproof breathable layer and a bottom layer.
Wherein, the absorption layer is mainly formed by combining a multi-layer structure containing water-absorbing materials, is usually called as a core body and is the main part playing a role of absorbing water in the disposable absorption product; the waterproof breathable layer is arranged at the bottom of the core body and is mostly a waterproof breathable PE film.
The core of a disposable absorbent article (e.g., a diaper) needs to have a waterproof and breathable function after absorbing liquid, and the main structure for performing this function is a waterproof and breathable PE film located under the core.
The applicant has found that the prior art has at least the following technical problems:
the existing PE film is used as a waterproof breathable layer, the waterproof effect is achieved, and meanwhile, the breathability is limited to a certain extent, particularly in infant products, if the breathability is poor, adverse reactions such as allergy, red wind and the like are easily caused when the skin is in contact with a humid environment for a long time.
If the air permeability of the waterproof breathable layer is too high, too much water vapor can permeate through the waterproof breathable layer and can be condensed into small water drops in the air again, so that the bottom layer is wet, and the using effect is greatly reduced.
Therefore, the existing PE film is arranged at the bottom of the core body, and has good waterproofness but limited air permeability; one such problem is troubling both users and researchers.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waterproof and breathable structure and a disposable absorption product, so as to solve the technical problem that the disposable absorption product in the prior art adopts a PE film arranged at the bottom of a core body, which can meet the waterproof requirement but has poor breathability; the utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a waterproof ventilative structure for in the disposable absorbent article, waterproof ventilative structure sets up in the lower part of core, and it includes ventilative layer, ventilative layer down and the layer that absorbs water, wherein:
the water absorbing layer is arranged between the upper breathable layer and the lower breathable layer; the water absorbing layer is of a single-layer structure or a double-layer structure and comprises a water absorbing material layer.
Preferably, the water absorbing layer is of a double-layer structure, and the water absorbing layer further comprises a supporting body for supporting the water absorbing material layer, the water absorbing material layer is formed by water absorbing polymer particles, and the supporting body is arranged at the lower part of the water absorbing polymer particles.
Preferably, the water-absorbent polymer particles are particles of a polyacrylic acid-based super absorbent resin.
Preferably, the water absorbing layer is of a single-layer structure and comprises a water absorbing material layer made of water absorbing fibers, or the water absorbing layer comprises a water absorbing material layer formed by compounding the water absorbing fibers and the supporting body.
Preferably, the supporting body is fluffy cloth or dust-free paper.
Preferably, the upper breathable layer is a water-repellent non-woven fabric.
Preferably, the lower breathable layer is a water-repellent non-woven fabric.
Preferably, a coating cavity is formed on the upper breathable layer and the lower breathable layer, and the water absorbing layer is arranged in the coating cavity.
The utility model also provides a disposable absorption goods, including core and above-mentioned waterproof ventilative structure.
Preferably, the disposable absorbent article is a paper diaper, a sanitary napkin, an absorbent pad with an absorption function, or the like.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model provides a waterproof and breathable structure, which is arranged at the lower part of a water absorption core body, adopts a multilayer structure, and realizes the function of liquid separation and good breathability through an upper breathable layer and a lower breathable layer; in order to prevent the bottom from being wet, the middle water absorption layer is utilized to absorb water vapor penetrating through the gap of the upper breathable layer, the penetrating water vapor is prevented from being condensed into small water drops when meeting air, the using effect is influenced, and the upper breathable layer and the lower breathable layer are combined with the water absorption layer in the middle to form a high-breathability and watertight multilayer structure.
2. The utility model provides a disposable absorption product, owing to possess above-mentioned waterproof ventilative structure, so this disposable absorption product has high gas permeability equally, prevents the moist effect in bottom.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a first embodiment of the waterproof and breathable structure of the present invention;
FIG. 2 is a schematic structural view of a second embodiment of a waterproof and breathable structure;
figure 3 is a schematic structural view of the disposable absorbent article of the present invention.
FIG. 1, core; 2. a waterproof and breathable structure; 21. an upper breathable layer; 22. a lower air-permeable layer; 23. a water-absorbing layer; 231. water-absorbent polymer particles; 232. a carrier; 3. a bottom layer; 41. an upper surface layer; 42. and (4) a lower surface layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1-fig. 3 show a schematic structural view of a first embodiment of the waterproof and breathable structure of the present invention in fig. 1; FIG. 2 is a schematic structural view of a second embodiment of a waterproof and breathable structure; figure 3 is a schematic structural view of the disposable absorbent article of the present invention.
The embodiment provides a waterproof and breathable structure, which is used in disposable absorbent articles, such as paper diapers, sanitary napkins, absorbent pads and the like; referring to fig. 3, the waterproof and breathable structure 2 is disposed at the lower portion of the core 1 and located at the upper portion of the bottom layer 3, the waterproof and breathable structure 2 is disposed at the lower portion of the core 1, and the waterproof and breathable structure 2 includes an upper breathable layer 21, a lower breathable layer 22 and a water absorption layer 23, wherein:
the water absorption layer 23 is arranged between the upper breathable layer 21 and the lower breathable layer 22; the water-absorbing layer 23 has a single-layer structure or a double-layer structure, and the water-absorbing layer 23 includes a water-absorbing material layer.
Wherein, the layers are compounded or bonded by multiple layers of materials in the process of processing and forming.
Wherein, the core body 1 is the most main water absorption part in the disposable absorbent product; the waterproof and breathable structure 2 is arranged at the lower part of the core body 1, and has the main functions of ventilation and more comfortable use; secondly, the water vapor penetrating through the core body 1 can be absorbed again, and the bottom of the core body 1 is prevented from being wet.
The upper breathable layer 21 and the lower breathable layer 22 are mainly waterproof and have high breathability, so that adverse reactions such as allergy, red flatus and the like caused by long-time contact of the skin with a humid environment are prevented. The upper breathable layer 21 and the lower breathable layer 22 can be made of water-repellent highly breathable materials.
Referring to fig. 1, the water-absorbing layer 23 has a double-layer structure, and the water-absorbing layer 23 further includes a carrier 232 for carrying a water-absorbing material layer, wherein the carrier 232 is disposed under the water-absorbing polymer particles 231, and the water-absorbing material layer is formed by the water-absorbing polymer particles 231.
When the water-absorbent polymer particles 231 are selected as the water-absorbent material, the carrier 232 is used to fix the water-absorbent polymer particles 231, and the water-absorbent layer 23 has a double-layer structure.
In an alternative embodiment, the water-absorbent polymer particles 231 are particles of a polyacrylic acid-based super absorbent resin.
As an alternative embodiment, referring to fig. 2, the water-absorbing layer 23 is a single-layer structure, and the water-absorbing layer 23 includes a water-absorbing material layer made of water-absorbing fibers, or the water-absorbing layer 23 includes a water-absorbing material layer formed by combining water-absorbing fibers with the supporting body 232.
The water-absorbing material may be the existing water-absorbing fiber, the specific type is not limited, the water-absorbing fiber is made into a water-absorbing material layer, or in order to facilitate better fixing of the water-absorbing fiber, the water-absorbing fiber and the supporting body 232 may form a composite structure during manufacturing and processing, and therefore, the water-absorbing layer 23 at this time is a single-layer structure.
The supporting body 232 is used to fix the water-absorbing material, and as an alternative embodiment, the supporting body 232 is made of fluffy cloth, dust-free paper, wood pulp, or the like.
In order to make the upper breathable layer 21 have a good waterproof effect and high air permeability, as an alternative embodiment, the upper breathable layer 21 is a water-repellent non-woven fabric.
In order to make the lower breathable layer 22 have a good waterproof effect and high breathability, as an alternative embodiment, the lower breathable layer 22 is a water-repellent non-woven fabric.
In order to facilitate the arrangement of the water-absorbing layer 23, as an alternative embodiment, the upper breathable layer 21 and the lower breathable layer 22 are formed with a coating cavity, and the water-absorbing layer 23 is arranged in the coating cavity.
The waterproof and breathable structure 2 provided by the utility model is arranged at the lower part of the water-absorbing core body 1, and realizes the function of liquid separation and good breathability through the upper layer and the lower layer of water-repellent non-woven fabrics; in order to prevent the bottom from being wet, the water absorption layer 23 in the middle is utilized to absorb the water vapor penetrating through the gap of the upper breathable layer 21, so that the penetrating water vapor is prevented from being condensed into small water drops when meeting air, the using effect is prevented from being influenced, and the upper and lower water-repellent non-woven fabrics and the water absorption layer 23 in the middle are combined to form a high-breathability and water-impermeable multilayer structure.
Example 2
Referring to fig. 3, the present embodiment provides a disposable absorbent article comprising an upper surface layer 41, a lower surface layer 42, a core 1, the above-mentioned waterproof and breathable structure 2, and a backsheet 3.
Besides the waterproof and breathable structure 2, the upper surface layer 41 and the lower surface layer 42 are made of hydrophilic nonwoven fabric, the absorbent layer, i.e., the core 1, is mainly formed by combining a multi-layer structure containing water-absorbent polymers, and the bottom layer 3 is made of water-repellent nonwoven fabric.
Compared with the existing PE film, the waterproof and breathable structure is applied to the disposable absorbent product and arranged at the lower part of the core body, the waterproof and breathable structure utilizes the waterproof and breathable effects of the upper breathable layer and the lower breathable layer, combines the water absorption of the middle water absorption layer, absorbs the permeated water vapor (urine and the like usually have human body temperature, and partial liquid permeates the bottom layer in the form of water vapor), and prevents the water vapor from being condensed into water drops again when meeting the external temperature.
The disposable absorption product has good air permeability and better waterproof performance, and is more comfortable to use.
As an alternative embodiment, the disposable absorbent article is a diaper, a sanitary napkin, an absorbent pad with an absorbent function, or the like.
The utility model provides a disposable absorption product, owing to possess above-mentioned waterproof ventilative structure 2, so this disposable absorption product has high gas permeability equally, prevents the moist effect in bottom.
The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A waterproof and breathable structure for use in disposable absorbent articles, characterized in that it is provided in the lower part of the core and comprises an upper breathable layer, a lower breathable layer and a water-absorbing layer, wherein:
the water absorbing layer is arranged between the upper breathable layer and the lower breathable layer; the water absorbing layer is of a single-layer structure or a double-layer structure and comprises a water absorbing material layer.
2. The waterproof and breathable structure according to claim 1, wherein the water-absorbing layer is a double-layer structure, and the water-absorbing layer further comprises a supporting body for supporting the water-absorbing material layer, the water-absorbing material layer is formed by water-absorbing polymer particles, and the supporting body is disposed under the water-absorbing polymer particles.
3. The waterproof breathable structure according to claim 2, characterized in that said water-absorbent polymeric particles are particles of polyacrylic superabsorbent resins.
4. The waterproof breathable structure according to claim 1, wherein the water-absorbing layer is a single-layer structure and comprises a water-absorbing material layer made of water-absorbing fibers, or the water-absorbing layer comprises a water-absorbing material layer formed by combining water-absorbing fibers and a supporting body.
5. The waterproof and breathable structure according to any one of claims 2 to 4, characterized in that said support is a tarpaulin or a dust-free paper.
6. The waterproof and breathable structure according to any one of claims 1 to 4, characterized in that said upper breathable layer is a water-repellent non-woven fabric.
7. The waterproof and breathable structure according to any one of claims 1 to 4, characterized in that said lower breathable layer is a water-repellent non-woven fabric.
8. The waterproof breathable structure of any one of claims 1 to 4, wherein said upper breathable layer and said lower breathable layer are formed with a sheathing cavity, said water-absorbing layer being disposed within said sheathing cavity.
9. A disposable absorbent article characterized by comprising a core and the waterproof breathable structure of any one of claims 1-8.
10. The disposable absorbent article of claim 9, wherein the disposable absorbent article is a diaper, a sanitary napkin, or an absorbent pad having absorbent function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112031.7U CN211911996U (en) | 2020-01-17 | 2020-01-17 | Waterproof breathable structure and disposable absorbent product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112031.7U CN211911996U (en) | 2020-01-17 | 2020-01-17 | Waterproof breathable structure and disposable absorbent product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211911996U true CN211911996U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020112031.7U Active CN211911996U (en) | 2020-01-17 | 2020-01-17 | Waterproof breathable structure and disposable absorbent product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211911996U (en) |
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2020
- 2020-01-17 CN CN202020112031.7U patent/CN211911996U/en active Active
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313000 block B-1, No. 698, ChenWang Road, Taihu street, Changxing County, Huzhou City, Zhejiang Province Patentee after: Aiduo Nursing (Zhejiang) Co.,Ltd. Address before: 313000 block B-1, No. 698, ChenWang Road, Taihu street, Changxing County, Huzhou City, Zhejiang Province Patentee before: Biba (Zhejiang) Nursing Products Co.,Ltd. |