Absorptive article

By designing an absorbent item including non-skin-friendly negative film, non-skin-friendly side sheet, skin-friendly top sheet and absorber, the problem of leakage of existing disposable sanitary napkins is solved, achieving a more efficient leakage prevention effect and better comfort.

CN120203940APending Publication Date: 2025-06-27GUANGZHOU XINGSHI EQUIPS
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Patent Information

Application Number
CN202510419652.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-06-27

AI Technical Summary

Technical Problem

There is a risk of side leakage when used, and it is urgently needed to improve it.

Method used

An absorbent article is designed, including a non-skin-friendly negative, a non-skin-friendly side, a skin-friendly topsheet and an absorbent. By providing a folded portion on the non-skin-friendly side sheet, and connecting the suspended absorber through the skin-friendly top sheet between the folded portions on both sides, a multi-layer structure is formed to enhance the leakage prevention effect.

Benefits of technology

Effectively prevent side leakage of excrement, enhance the wearer's comfort during use, and improve absorbability through a multi-layer structure to further prevent side leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an absorptive article which comprises a non-skin-friendly bottom piece, a non-skin-friendly side piece, a skin-friendly top piece and an absorber. One ends of the non-skin-friendly side pieces are symmetrically connected to the two sides of the upper portion of the non-skin-friendly bottom piece respectively, folding parts are arranged at the other ends of the non-skin-friendly side pieces, the skin-friendly top piece is connected between the folding parts of the non-skin-friendly side pieces on the two sides, the absorption body is of a multi-layer structure, the absorption body is connected to the lower portion of the skin-friendly top piece, and the absorption body is connected to the lower portion of the skin-friendly top piece. The absorber is suspended above the non-skin-friendly bottom piece, and a sticking part for sticking clothes is distributed below the non-skin-friendly bottom piece; the absorbent article can effectively prevent the risk of side leakage.
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Description

Technical Field

[0001] The present invention relates to an absorbent article. Background Art

[0002] In existing absorbent articles, there are more and more types of disposable sanitary products that people can come into contact with. As absorbent articles fixed to the wearer's clothing for use, there are physiological sanitary napkins, pantiliners, etc. Conventional disposable sanitary napkins on the market have a risk of side leakage during use and urgently need improvement. Summary of the Invention

[0003] The purpose of the present invention is to provide an absorbent article that can effectively prevent the risk of side leakage.

[0004] To achieve this purpose, the present invention adopts the following technical solutions: Provide an absorbent article, comprising: a non-skin-friendly bottom sheet, non-skin-friendly side sheets, a skin-friendly top sheet, and an absorbent body; one end of each of the non-skin-friendly side sheets is symmetrically connected to both sides above the non-skin-friendly bottom sheet, a folding portion is provided at the other end of the non-skin-friendly side sheet, the skin-friendly top sheet is connected between the folding portions of the non-skin-friendly side sheets on both sides, the absorbent body is a multi-layer structure, the absorbent body is connected below the skin-friendly top sheet, and the absorbent body is suspended above the non-skin-friendly bottom sheet, and a pasting portion for pasting clothing is distributed below the non-skin-friendly bottom sheet.

[0005] As a preferred embodiment of the absorbent article, the absorbent body comprises: an upper skin-friendly bottom sheet, an absorbent core, and a lower skin-friendly bottom sheet; the upper skin-friendly bottom sheet, the absorbent core, and the lower skin-friendly bottom sheet are stacked in sequence from top to bottom, and an adhesive portion is provided between each layer.

[0006] As a preferred embodiment of the absorbent article, the folding portion is a U-shaped structure with a horizontal cross-section, the U-shaped openings of the folding portions on both sides face each other, and an adhesive portion is provided between the lower surface of the folding portion and the upper surface of the other end of the non-skin-friendly side sheet.

[0007] As a preferred embodiment of the absorbent article, the folding portion is a double-layer structure formed by inwards folding the non-skin-friendly side sheet, and an adhesive portion is provided between the double-layer structures of the folding portion.

[0008] As a preferred embodiment of the absorbent article, the skin-friendly topsheet has an inverted U-shaped cross-section, and inner flanges are provided at the two U-shaped edges at both ends of the skin-friendly topsheet. The lower surfaces of the inner flanges at both ends of the skin-friendly topsheet are respectively connected to the inner lower sides of the two folding parts on both sides through bonding parts. The upper sides on both sides of the skin-friendly topsheet are respectively connected to the inner upper sides of the two folding parts on both sides through bonding parts. The absorbent body is disposed inside the skin-friendly topsheet, and the upper surface of the absorbent body is connected to the lower surface above the skin-friendly topsheet through a bonding part. The two sides of the lower surface of the absorbent body are respectively connected to the upper sides of the two inner flanges through bonding parts.

[0009] As a preferred embodiment of the absorbent article, bumps formed by heat rolling are distributed on the surfaces of both the skin-friendly topsheet and the absorbent body.

[0010] As a preferred embodiment of the absorbent article, the non-skin-friendly bottom sheet is a liquid-impermeable material.

[0011] As a preferred embodiment of the absorbent article, the non-skin-friendly side sheets are water-repellent natural fibers.

[0012] As a preferred embodiment of the absorbent article, the skin-friendly topsheet is a hydrophilic natural fiber.

[0013] As a preferred embodiment of the absorbent article, the upper skin-friendly bottom sheet and the lower skin-friendly bottom sheet are liquid-permeable natural fibers, and the absorbent core is a high liquid-absorbing polymer.

[0014] Advantages of the present invention: In the absorbent article proposed by the present invention, folding parts are provided on the non-skin-friendly side sheets, and an absorbent body suspended above the non-skin-friendly bottom sheet is connected between the two folding parts on both sides through a skin-friendly topsheet. When the wearer uses the absorbent article, the absorbent article is clamped between the wearer's legs, and the absorbent article is subjected to a compressive force from the two outer sides to the inner side in the width direction. At the same time, the skin contacts the front surface of the absorbent article, and the absorbent article is subjected to a downward compressive force. Under the action of the compressive force, the absorbent article is deformed, and more fabric is pushed out toward the skin side, correspondingly forming a leak-proof wall with higher quality, which can more effectively inhibit the side leakage of excrement; and the suspended structure is better deformed toward both sides in the width direction, enhancing the comfort of the wearer during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1Schematic diagram of the front structure of an absorbent article according to an embodiment of the present invention; Figure 2 Schematic diagram of the back structure of an absorbent article according to an embodiment of the present invention; Figure 3 is Figure 1 Cross-sectional view at the position A-A in Figure 4 is a cross-sectional view at the position A-A when the absorbent article of an embodiment of the present invention is stressed during wearing Figure 1 in; In the figure: 1, non-skin-friendly bottom sheet; 2, non-skin-friendly side sheets; 201, folding part; 3, skin-friendly top sheet; 301, inner folded edge; 4, absorbent body; 401, upper skin-friendly bottom sheet; 402, absorbent core; 403, lower skin-friendly bottom sheet; 5, bonding part; 6, bump; 7, sticking part. Detailed implementation manners

[0017] The following will describe the embodiments of the present disclosure in detail with reference to the accompanying drawings.

[0018] The following illustrates the implementation manners of the present disclosure through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The present disclosure can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without making creative efforts belong to the scope of protection of the present disclosure.

[0019] Referring to Figures 1-4 , an embodiment of the present invention provides an absorbent article, including: a non-skin-friendly bottom sheet 1, non-skin-friendly side sheets 2, a skin-friendly top sheet 3, and an absorbent body 4; one ends of the non-skin-friendly side sheets 2 are symmetrically connected to both sides above the non-skin-friendly bottom sheet 1, a folding part 201 is provided at the other end of the non-skin-friendly side sheets 2, the skin-friendly top sheet 3 is connected between the folding parts 201 of the non-skin-friendly side sheets 2 on both sides, the absorbent body 4 is a multi-layer structure, the absorbent body 4 is connected below the skin-friendly top sheet 3, and the absorbent body 4 is suspended above the non-skin-friendly bottom sheet 1, and sticking parts 7 for sticking to clothes are distributed below the non-skin-friendly bottom sheet 1. Among them, the non-skin-friendly bottom sheet 1 is made of a liquid-impermeable material, the non-skin-friendly side sheets 2 are made of water-repellent natural fibers, and the skin-friendly top sheet 3 is made of hydrophilic natural fibers. The above materials are common and commonly used materials in the field.

[0020] In the above technical solution, a folding part 201 is provided on the non-skin-friendly side piece 2, and an absorber 4 suspended above the non-skin-friendly bottom piece 1 is connected between the two side folding parts 201 through a skin-friendly top piece 3. When the wearer uses the absorbent article, the absorbent article is clamped between the wearer's legs, and the absorbent article is subjected to a compressive force from the two outer sides to the inner side in the width direction. At the same time, the skin contacts the front side of the absorbent article, and the absorbent article is subjected to a downward compressive force. Under the action of the compressive force, the absorbent article is deformed, and more fabric is pushed out toward the skin side, correspondingly forming a leak-proof wall with higher quality, which can more effectively inhibit the side leakage of excrement; and the suspended structure is better deformed toward the two width sides, enhancing the comfort of the wearer during use.

[0021] In some embodiments, the absorber 4 includes: an upper skin-friendly bottom piece 401, an absorbent core 402, and a lower skin-friendly bottom piece 403; the upper skin-friendly bottom piece 401, the absorbent core 402, and the lower skin-friendly bottom piece 403 are stacked in sequence from top to bottom, and an adhesive part 5 is provided between each layer. Specifically, the upper skin-friendly bottom piece 401 and the lower skin-friendly bottom piece 403 are liquid-permeable natural fibers, and the absorbent core 402 is a high liquid-absorbing polymer. The above materials are common and commonly used materials in the field. The absorber 4 with a multi-layer structure design can effectively improve its absorbency and further prevent side leakage.

[0022] In some embodiments, the folding part 201 has a U-shaped structure with a horizontal cross-section, the U-shaped openings of the two side folding parts 201 face each other, and an adhesive part 5 is provided between the lower surface of the folding part 201 and the upper surface of the other end of the non-skin-friendly side piece 2. The folding part 201 with a U-shaped structure design can cleverly and firmly connect and wrap the skin-friendly top piece 3 and the absorber 4, with a firm connection and the absorber 4 suspended above the non-skin-friendly bottom piece 1.

[0023] Furthermore, the folding part 201 is a double-layer structure formed by inverting the non-skin-friendly side piece 2 inward, and an adhesive part 5 is provided between the double-layer structures of the folding part 201. The U-shaped folding part 201 with a double-layer structure can further improve the strength of the non-skin-friendly side piece 2, be more likely to inhibit the penetration of excrement, and prevent side leakage.

[0024] In some embodiments, the skin-friendly top sheet 3 has an inverted U-shaped cross-section, and inner folding edges 301 are provided at both ends of the U-shaped sides of the skin-friendly top sheet 3. The lower surfaces of the inner folding edges 301 at both ends of the skin-friendly top sheet 3 are respectively connected to the inner lower sides of the two side folding parts 201 through an adhesive part 5. The upper sides on both sides of the skin-friendly top sheet 3 are respectively connected to the inner upper sides of the two side folding parts 201 through an adhesive part 5. The absorbent body 4 is disposed inside the skin-friendly top sheet 3, and the upper surface of the absorbent body 4 is connected to the lower surface above the skin-friendly top sheet 3 through an adhesive part 5. The two sides of the lower surface of the absorbent body 4 are respectively connected to the upper sides of the two inner folding edges 301 through an adhesive part 5. This structural design enables the skin-friendly top sheet 3 to be stably connected to the non-skin-friendly side sheet 2, and at the same time, it can also stably wrap and connect the absorbent body 4, with excellent overall structure strength.

[0025] In some embodiments, convex points 6 formed by heat rolling are distributed on the surfaces of both the skin-friendly top sheet 3 and the absorbent body 4. The structural design of the convex points 6 enables, when the amount of excrement is large, the liquid to spread and be absorbed evenly around the absorbent body 4, preventing overflow and side leakage.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "middle", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. The meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly specifically limited.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The above is only to illustrate the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent replacements, improvements, etc. made without creative efforts within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An absorbent article, characterized in that: include: A non-skin-friendly bottom sheet (1), a non-skin-friendly side sheet (2), a skin-friendly top sheet (3) and an absorbent body (4); one end of the non-skin-friendly side sheet (2) is symmetrically connected to both sides of the top of the non-skin-friendly bottom sheet (1); the other end of the non-skin-friendly side sheet (2) is provided with a folding portion (201); the skin-friendly top sheet (3) is connected between the folding portions (201) of the non-skin-friendly side sheets (2) on both sides; the absorbent body (4) is a multi-layer structure; the absorbent body (4) is connected to the bottom of the skin-friendly top sheet (3), and the absorbent body (4) is suspended above the non-skin-friendly bottom sheet (1); and an adhesive portion (7) for attaching clothes is provided below the non-skin-friendly bottom sheet (1).

2. The absorbent article according to claim 1, wherein The absorbent body (4) comprises: an upper skin-friendly base sheet (401), an absorbent core (402) and a lower skin-friendly base sheet (403); the upper skin-friendly base sheet (401), the absorbent core (402) and the lower skin-friendly base sheet (403) are stacked in order from top to bottom, and an adhesive portion (5) is provided between each layer.

3. The absorbent article according to claim 1, wherein The folded portion (201) is a U-shaped structure with a transverse cross section, the U-shaped openings of the folded portion (201) on both sides are opposite to each other, and an adhesive portion (5) is provided between the lower surface of the folded portion (201) and the upper surface of the other end of the non-skin-friendly side sheet (2).

4. The absorbent article according to claim 3, wherein: The folded portion (201) is a double-layer structure formed by folding the non-skin-friendly side piece (2) inwardly, and an adhesive portion (5) is provided between the double-layer structure of the folded portion (201).

5. The absorbent article according to claim 3, characterized in that The skin-friendly top sheet (3) has an inverted U-shaped cross-section, and the U-shaped edges at both ends of the skin-friendly top sheet (3) are provided with inner folded edges (301), the lower surfaces of the inner folded edges (301) at both ends of the skin-friendly top sheet (3) are respectively connected to the inner lower parts of the folded parts (201) at both sides through adhesive parts (5), and the upper sides of the skin-friendly top sheet (3) are respectively connected to the inner upper parts of the folded parts (201) at both sides through adhesive parts (5), and the absorbent body (4) is built into the skin-friendly top sheet (3), and the upper surface of the absorbent body (4) is connected to the upper lower surface of the skin-friendly top sheet (3) through the adhesive part (5), and the lower surface of the absorbent body (4) is respectively connected to the upper parts of the inner folded edges (301) at both sides through the adhesive parts (5).

6. The absorbent article according to claim 1, wherein: The surfaces of the skin-friendly top sheet (3) and the absorbent body (4) are both distributed with convex points (6) formed by pressing with a heating roller.

7. The absorbent article according to claim 1, wherein: The non-skin-friendly backsheet (1) is made of liquid-impermeable material.

8. The absorbent article according to claim 1, wherein The non-skin-friendly side panels (2) are made of water-repellent natural fibers.

9. The absorbent article according to claim 1, wherein: The skin-friendly top sheet (3) is made of hydrophilic natural fiber.

10. The absorbent article according to claim 2, wherein: The upper skin-friendly backing sheet (401) and the lower skin-friendly backing sheet (403) are made of liquid-permeable natural fibers, and the absorbent core (402) is made of a liquid-high absorbent polymer.