A middle hollowed-out fitted absorbent article

Abstract

The utility model provides a kind of middle hollow adhering absorbent article, belong to sanitary product technical field, including surface layer, annular hollow opening is set in surface layer central position;Middle hollow layer, it is set below surface layer, and it corresponds with the hollow opening of surface layer;Middle hollow layer is three-dimensional texture nonwoven fabric, three-dimensional texture nonwoven fabric is formed between embossed pattern three-dimensional bulge structure, the groove between bulge structure can store air, to accelerate heat exhaust steam, and reduce the contact area of middle hollow layer and user private parts;The utility model's three-dimensional texture nonwoven fabric is uniformly distributed with several embossed pattern, and three-dimensional bulge structure is formed between embossed pattern, this structure reduces the contact area of three-dimensional texture nonwoven fabric and user private parts, is favorable to air passing, accelerates heat dissipation and the discharge of water vapor, avoids the problem that user private parts and sanitary towel or light incontinence pad closely adhere and lead to humid and sultry.

Description

Technical Field

[0001] This utility model relates to the field of hygiene products technology, specifically to a non-absorbent, absorbent material with a hollowed-out center. Background Technology

[0002] As a primary product for menstrual care, feminine hygiene products are constantly being optimized in design to improve comfort, breathability, and leak-proof performance. Traditional sanitary napkins mostly use 100% cotton or super absorbent polymer materials, achieving liquid absorption and leak prevention through a multi-layered structure. In recent years, with consumers' increasing demands for comfort and health, various improved designs have emerged in the market, such as ultra-thin designs, 3D side panels, and breathable bottom films. However, these designs still have limitations in improving localized breathability and fit, especially during prolonged use, which can easily lead to stuffiness and discomfort.

[0003] Firstly, some sanitary napkins or incontinence pads use microporous membrane materials to enhance breathability at the bottom in order to improve breathability, but this also sacrifices some leak-proof effect, which may cause liquid to seep out from the bottom membrane.

[0004] Secondly, in order to improve the anti-leakage effect, some sanitary napkins or incontinence pads adopt a three-dimensional protective structure, which forms a three-dimensional barrier through elastic materials to prevent side leakage, but increases the local thickness. In addition, most three-dimensional protective structures currently use a structure of water-repellent fabric wrapped around spandex filaments. During the processing, the spandex filaments are in a stretched state. Therefore, when the three-dimensional protective structure returns to its natural state, the water-repellent fabric on the outside of the spandex filaments will produce serrated wrinkles, which will cause friction.

[0005] Finally, most existing sanitary napkins or incontinence pads use zoned absorbent layers, employing absorbent materials of different densities in different areas, but this makes it difficult to maintain overall breathability. This results in insufficient breathability, easily causing stuffiness and skin discomfort. Utility Model Content

[0006] This invention provides a hollowed-out, absorbent material to solve the technical problems in the prior art.

[0007] To solve the above problems, the absorbent article with a hollow center provided by this utility model adopts the following technical solution: it includes a surface layer, and a ring-shaped hollow opening is provided at the center of the surface layer; The central hollow layer is located below the surface layer and corresponds to the hollow opening of the surface layer. The central hollow layer is a three-dimensional textured non-woven fabric. The embossing of the three-dimensional textured non-woven fabric forms a three-dimensional bulge structure. The grooves between the bulge structures can store air to accelerate heat and steam dissipation and reduce the contact area between the central hollow layer and the user's private parts. A temporary liquid storage layer is set below the central hollow layer. The temporary liquid storage layer has several water storage holes evenly distributed, and the several water storage holes form a liquid storage space for temporary storage of liquid. An absorbent layer is disposed below the temporary liquid storage layer; the absorbent layer is used for liquid. A leak-proof layer is placed below the absorbent to prevent liquid leakage, and an adhesive layer is also provided below the leak-proof layer.

[0008] As a further improvement, the surface layer is a hot-air nonwoven fabric.

[0009] As a further improvement, the hollow opening is elliptical or polygonal in shape, and the area of ​​the hollow opening accounts for 20%-50% of the surface area.

[0010] As a further improvement, the height of the bulge structure is 0.5-2mm.

[0011] As a further improvement, several guide holes are also provided at the bottom of the grooves between the bulge structures to accelerate liquid seepage.

[0012] As a further improvement, the guide hole is a trapezoidal or conical structure that is wider at the top and narrower at the bottom to prevent secondary backflow of liquid.

[0013] As a further improvement, the hollowed-out area of ​​the surface layer is ultrasonically welded to the central hollowed-out layer, and the welding point is a round dot. The welding point is set at the edge of the hollowed-out opening to prevent the edge of the hollowed-out opening of the surface layer from turning up.

[0014] As a further improvement, the temporary liquid storage layer is absorbent paper with polygonal pores, the height of which is 0.5-2 mm.

[0015] As a further improvement, the absorbent layer has several slits for accelerating liquid diffusion.

[0016] As a further improvement, the cut includes a longitudinal cut and a transverse cut, which do not intersect each other. The longitudinal cut is located in the middle of the absorption layer to accelerate the diffusion of liquid to the front or rear end of the absorption layer; the transverse cut is located at the front and rear ends of the absorption layer to accelerate the diffusion of liquid to the left and right sides of the absorption layer.

[0017] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: 1. The central hollow layer of this utility model is made of three-dimensional textured non-woven fabric. The three-dimensional textured non-woven fabric is evenly distributed with several embossed patterns, and the embossed patterns form a three-dimensional bulging structure. This structure reduces the contact area between the three-dimensional textured non-woven fabric and the user's private parts, which is conducive to air passage, accelerates heat dissipation and moisture discharge, and avoids the problem of dampness and stuffiness caused by the user's private parts being closely attached to sanitary napkins or incontinence pads.

[0018] The bottom of the groove between the bulge structures is also provided with a guide hole that is wider at the top and narrower at the bottom. This structure is conducive to the rapid and fixed-point infiltration of liquid. When there is a large amount of liquid at one time, the wider top and narrower bottom can temporarily store more liquid, allowing the liquid to spread along the bottom and sides of the guide hole, reducing the risk of side leakage when the liquid volume is large. The inverted trapezoidal structure can form a height difference, and the bottom opening is small, making it less likely to cause secondary backflow.

[0019] 2. By creating a hollow opening in the center of the surface layer, the material covering the middle layer is reduced, which helps to increase air circulation and reduce stuffiness and dampness.

[0020] 3. The temporary liquid storage layer uses polygonal pore absorbent paper, which utilizes capillary effect to quickly guide the liquid to the absorption layer. The polygonal pores form a temporary liquid storage pore, which disperses the liquid pressure and avoids local saturation while closely fitting the human body. The polygonal pore height is between 0.5-2mm, which can withstand the impact of liquid with an instantaneous flow rate of ≥10ml / s.

[0021] 4. The absorbent layer has multiple longitudinal and transverse cuts. The longitudinal cuts are concentrated in the middle of the sanitary napkin, which is conducive to the longitudinal diffusion of liquid; the transverse cuts are concentrated at the front and back edges of the sanitary napkin, which is conducive to the transverse diffusion of liquid; at the same time, the core is cut to increase softness and better fit the human body.

[0022] 5. The perforated openings, the three-dimensional textured non-woven fabric, the temporary liquid storage layer, and the cuts in the absorbent layer work together to form a gradient absorption, which can effectively reduce the risk of liquid side leakage. Attached Figure Description

[0023] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the structure of the absorbent article with a hollowed-out central section according to this utility model. Figure 2 This is a top view of the absorbent material with a hollowed-out center, according to this utility model. Figure 3 This is a schematic diagram of the absorbent layer of the present invention, which has a hollowed-out central section and is designed to fit absorbent articles. Figure 4 This is a schematic diagram of the three-dimensional textured nonwoven fabric with a hollowed-out center that fits absorbent items according to this utility model. Figure 5 This is a schematic diagram of the structure of the temporary liquid storage layer for the absorbent material with a hollowed-out central section, as described in this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Surface layer; 101. Hollowed-out opening; 2. Middle hollowed-out layer; 3. Temporary liquid storage layer; 4. Absorbent layer; 401. Horizontal cut; 402. Vertical cut; 5. Leak-proof layer; 6. Adhesive layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Most existing sanitary napkins or incontinence pads fail to balance breathability and leak prevention, leading to stuffiness or skin discomfort.

[0027] To address the aforementioned issues, this invention firstly incorporates a perforated opening in the surface layer, directly reducing the material coverage in the middle section, which facilitates air circulation and reduces stuffiness and dampness.

[0028] Secondly, the central perforated layer uses a three-dimensional textured non-woven fabric. This non-woven fabric has an uneven texture, resulting in a smaller contact area with the human body and better breathability, which is more conducive to the dissipation of heat and moisture. In addition, the bottom of the grooves between the bulge structures is evenly distributed with guide holes that are wider at the top and narrower at the bottom, which can quickly guide the liquid downwards and reduce secondary backflow.

[0029] Secondly, the temporary liquid storage layer uses polygonal pore absorbent paper, which uses capillary effect to quickly guide the liquid to the absorption layer. The polygonal pores form the pores for temporary liquid storage, which disperses the liquid pressure and avoids local saturation while closely fitting the human body.

[0030] Finally, the absorbent layer has multiple longitudinal and transverse cuts. The longitudinal cuts are concentrated in the middle of the sanitary napkin, which is conducive to the longitudinal diffusion of liquid; the transverse cuts are concentrated at the front and back edges of the sanitary napkin, which is conducive to the transverse diffusion of liquid, so that the liquid is evenly diffused throughout the entire absorbent layer, improving the utilization rate of the absorbent layer.

[0031] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0032] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0033] Example 1 of the absorbent article with a hollowed-out center provided by this utility model: like Figure 1-5 As shown, the absorbent material with a hollow center includes, from top to bottom, a surface layer 1, a hollow center layer 2, a temporary liquid storage layer 3, an absorbent layer 4, a leak-proof layer 5, and an adhesive layer 6.

[0034] The top layer 1 comes into direct contact with human skin, so it is made of skin-friendly non-woven fabric, preferably hot-air non-woven fabric, and covers the top and edges of absorbent items.

[0035] Furthermore, through an online slitting process, a ring-shaped perforated opening 101 is created at the center of the surface layer 1, allowing the user's private parts to directly contact the central perforated layer 2. The perforated opening 101 is elliptical or polygonal in shape; in this embodiment, it is elliptical, and its area occupies 20%-50% of the surface layer 1 area. The perforated opening 101 directly reduces the material coverage in the middle, increases airflow, and also reduces liquid leakage to some extent.

[0036] To reduce the discomfort caused by the folding of the hollow opening 101, in this embodiment, the surface layer 1 and the middle hollow layer 2 are ultrasonically welded, and the welding point is a dot. The welding point is set at the edge of the hollow opening 101 to prevent the edge of the hollow opening 101 of the surface layer 1 from folding.

[0037] like Figure 4 As shown, the central hollow layer 2 is located below the surface layer 1 and corresponds to the hollow opening 101 of the surface layer 1; the central hollow layer 2 is a three-dimensional textured non-woven fabric, and the embossing of the three-dimensional textured non-woven fabric forms a three-dimensional bulge structure. The height of the bulge structure is 0.5-2mm. The grooves between the bulge structures can store air to accelerate heat and steam dissipation and reduce the contact area between the central hollow layer 2 and the user's private parts. Several flow guide holes are also provided at the bottom of the groove between the bulge structures to accelerate liquid infiltration. The flow guide holes are trapezoidal or conical structures that are wider at the top and narrower at the bottom. The structure that is wider at the top and narrower at the bottom can hold more liquid, temporarily store the liquid, and reduce the possibility of side leakage. In addition, due to the small opening at the bottom, it can also reduce or prevent secondary back seepage of liquid.

[0038] like Figure 5 As shown, the temporary liquid storage layer 3 is located below the central perforated layer 2. The temporary liquid storage layer 3 has several evenly distributed water storage holes, forming a storage space for temporarily storing the liquid. The temporary liquid storage layer 3 is a polygonal absorbent paper with pores ranging from 0.5 to 2 mm in height, and the polygons are generally hexagonal. The polygonal absorbent paper utilizes capillary effect to quickly guide the liquid to the absorbent layer 4, dispersing liquid pressure and preventing localized saturation while maintaining a close fit to the human body.

[0039] like Figure 3 As shown, the absorbent layer 4 is disposed below the temporary liquid storage layer 3. The absorbent layer 4 is used for liquid and is composed of a dust-free paper composite core or a fluff pulp superabsorbent polymer (SAP). In this embodiment, the absorbent layer 4 has several cuts for accelerating liquid diffusion. The cuts include longitudinal cuts 402 and transverse cuts 401. The longitudinal cuts 402 and transverse cuts 401 do not intersect each other. The longitudinal cut 402 is disposed in the middle of the absorbent layer 4 to accelerate the diffusion of liquid to the front or rear end of the absorbent layer 4. The transverse cuts 401 are disposed at the front and rear ends of the absorbent layer 4 to accelerate the diffusion of liquid to the left and right sides of the absorbent layer 4.

[0040] Leak-proof layer 5, located below the absorbent, prevents liquid leakage. Leak-proof layer 5 is made of breathable polyethylene film and is heat-pressed to the edge of the surface layer; adhesive layer 6, located below the leak-proof bottom film, is made of medical-grade pressure-sensitive adhesive and extends to both sides to form wings.

[0041] While this specification has shown and described numerous embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A type of absorbent article with a hollowed-out center, characterized in that, include: The surface layer (1) has a ring-shaped hollow opening (101) at the center. The middle hollow layer (2) is located below the surface layer (1) and corresponds to the hollow opening (101) of the surface layer (1). The middle hollow layer (2) is a three-dimensional textured non-woven fabric. The three-dimensional textured non-woven fabric forms a three-dimensional bulge structure between the embossing. The grooves between the bulge structures can store air to accelerate heat and steam exhaust and reduce the contact area between the middle hollow layer (2) and the user's private parts. A temporary liquid storage layer (3) is set below the central hollow layer (2). The temporary liquid storage layer (3) is evenly distributed with several water storage holes, and the several water storage holes form a liquid storage space for temporary liquid storage. An absorbent layer (4) is disposed below the temporary liquid storage layer (3), and the absorbent layer (4) is used for liquid; A leak-proof layer (5) is provided below the absorbent to prevent liquid leakage. An adhesive layer (6) is also provided below the leak-proof layer (5).

2. The absorbent article with a hollowed-out center according to claim 1, characterized in that: The surface layer (1) is hot air nonwoven fabric.

3. The absorbent article with a hollowed-out center according to claim 2, characterized in that: The hollow opening (101) is elliptical or polygonal in shape, and the area of ​​the hollow opening (101) accounts for 20%-50% of the area of ​​the surface layer (1).

4. The absorbent article with a hollowed-out center according to claim 1, characterized in that: The height of the bulge structure is 0.5-2mm.

5. The absorbent article with a hollowed-out center according to claim 4, characterized in that: Several guide holes are also provided at the bottom of the grooves between the bulge structures to accelerate liquid infiltration.

6. The absorbent article with a hollowed-out center according to claim 5, characterized in that: The guide hole has a trapezoidal or conical structure that is wider at the top and narrower at the bottom to prevent secondary backflow of liquid.

7. The absorbent article with a hollowed-out center according to claim 1, characterized in that: The hollow opening (101) area of ​​the surface layer (1) and the central hollow layer (2) are ultrasonically welded. The welding point is a round dot and is set at the edge of the hollow opening (101) to prevent the edge of the hollow opening (101) of the surface layer (1) from turning over.

8. The absorbent article with a hollowed-out center according to claim 1, characterized in that: The temporary liquid storage layer (3) is a polygonal pore absorbent paper with a pore height of 0.5-2mm.

9. The absorbent article with a hollowed-out center according to claim 1, characterized in that: The absorbent layer (4) has several slits for accelerating liquid diffusion.

10. The absorbent article with a hollowed-out center according to claim 9, characterized in that: The cut includes a longitudinal cut (402) and a transverse cut (401), which do not intersect each other. The longitudinal cut (402) is located in the middle of the absorption layer (4) to accelerate the diffusion of liquid to the front or rear end of the absorption layer (4). The transverse cut (401) is located at the front and rear ends of the absorption layer (4) to accelerate the diffusion of liquid to the left and right sides of the absorption layer (4).

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