Sanitary napkin having a barrier function

Abstract

This utility model discloses a sanitary napkin with anti-leakage function, including a sanitary napkin body. The sanitary napkin body comprises, in sequence, a skin-friendly layer, a superconducting layer, a composite core, an absorbent core, an absorbent layer, and a breathable bottom film layer. The skin-friendly layer has a channeling groove in the middle, and the superconducting layer is embedded in the channeling groove. The absorbent layer has a slanted groove in the middle, and the absorbent core is attached to the slanted groove. The composite core is attached to the absorbent core and has an arched protrusion shape. This utility model features an absorbent core on the absorbent layer, with the composite core on the absorbent core contacting the female intimate area. A superconducting layer is located between the skin-friendly layer and the absorbent core. When menstrual blood flows out, it is held back by the composite core, allowing it to better spread to the superconducting layer and preventing menstrual blood from flowing directly downwards. The absorbent core in the middle of the absorbent layer can quickly absorb menstrual blood, with a small portion of the menstrual blood being absorbed by the absorbent layer. The outer layer of the sanitary napkin body has a silk-oxygen breathable bottom film, providing good breathability. This utility model has a novel structure, good anti-leakage effect, and is suitable for widespread application.

Description

Technical Field

[0001] This utility model relates to the field of sanitary napkin technology, and more specifically to a sanitary napkin with anti-seepage function. Background Technology

[0002] Sanitary napkins are made of a polymer and polymer composite paper formed from cotton, non-woven fabric, pulp, or a combination of the above materials. They mainly consist of a skin-friendly layer, a diversion layer, an absorbent layer, and a leak-proof layer. Existing sanitary napkins often encounter two problems during use: first, the absorbent layer has limited capacity to absorb menstrual blood, easily leading to leakage; second, the diversion layer's non-woven fabric is short-cut, with a width smaller than the fabric width, preventing sufficient diffusion of menstrual blood to the sides, causing leakage from the center. This leakage is inconvenient and embarrassing for women, and in severe cases, can even breed bacteria, affecting health. Therefore, we propose a sanitary napkin with leak-proof functionality to address these issues. By improving the sanitary napkin's structure, it can better divert and absorb menstrual blood, improving comfort.

[0003] To improve the leak-proof effect of sanitary napkins while meeting breathability requirements, Chinese patent application (publication number CN219700319U) discloses a biodegradable sanitary napkin. This utility model includes a sanitary surface layer, a main absorbent layer, a leak-proof covering layer, and a breathable membrane layer. An upper reverse-osmosis layer is provided on the lower surface of the sanitary surface layer, and a lower reverse-osmosis layer is provided on the lower surface of the leak-proof covering layer. The sanitary surface layer of this utility model is composed of a bleached non-degreased cotton layer, a bleached degreased cotton layer, and a silk covering layer, allowing the skin to feel breathable, dry, and comfortable. It is naturally biodegradable and effectively improves the breathability of the sanitary napkin while being relatively environmentally friendly. The main absorbent layer has good absorbency, is biodegradable, and non-irritating. The leak-proof covering layer is composed of a composite breathable bottom layer, a thin absorbent layer, and a biodegradable absorbent cotton layer. It utilizes a blood-repellent spunbond nonwoven material combined with the thin absorbent layer to meet the leak-proof and breathability requirements of sanitary napkins.

[0004] The solution still has some shortcomings in application. During menstruation, heavy menstrual flow is common, requiring the absorbent layer to be able to absorb all the blood. Otherwise, poor absorption can lead to leakage. Also, sometimes the flow is heavy, requiring the absorbent layer to not only absorb but also absorb quickly. Otherwise, direct leakage can easily occur. Therefore, the structure of sanitary napkins needs to be improved to give them both strong absorbency and rapid absorption, effectively improving their practicality. Utility Model Content

[0005] The present invention discloses a sanitary napkin with anti-seepage function, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A sanitary napkin with anti-leakage function includes a sanitary napkin body, which, from top to bottom, comprises a skin-friendly layer, a superconducting layer, a composite core, an absorbent core, an absorbent layer, and a breathable bottom film layer. The skin-friendly layer has a channeling groove in the middle, the superconducting layer is embedded at the bottom of the channeling groove, the absorbent layer has an oblique groove in the middle, the absorbent core is attached to the bottom of the oblique groove, and the composite core is attached to the absorbent core, the composite core being in an arched convex shape.

[0008] Furthermore, the skin-friendly layer is a hot-air nonwoven fabric surface layer.

[0009] Furthermore, the superconducting layer and the absorption layer have the same dimensions.

[0010] Furthermore, the composite core is an absorbent cotton body that is adapted to fit and abut against the female vaginal opening.

[0011] Furthermore, the absorber is made of high molecular weight SAP polymer material.

[0012] Furthermore, the breathable bottom membrane layer has a built-in silk-oxygen breathable bottom membrane, which is covered with 8,000 breathable micropores.

[0013] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0014] This invention firstly features an absorbent core on the absorbent layer, with an arched, protruding composite core that contacts the female intimate area. A superconducting layer exists between the skin-friendly layer and the absorbent core. This design allows menstrual blood to flow out, being held back by the composite core and better spread to the superconducting layer, preventing direct downward flow and instantaneous leakage. Next, an absorbent core made of high-molecular-weight SAP polymer is added to the middle of the absorbent layer. This absorbent core quickly absorbs menstrual blood that has spread to the superconducting layer, completely absorbing most of the blood, with a small portion being absorbed by the absorbent layer itself, thus improving the anti-leakage effect. Finally, the outer layer of the sanitary napkin has a breathable cotton-oxygen bottom membrane with 8000 breathable micropores, providing excellent breathability. This invention boasts a novel structure, effectively prevents leakage, offers superior comfort, and is suitable for widespread application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2This is a schematic diagram of the structure of the absorbent layer, absorber and composite core of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the skin-friendly layer and the superconducting layer of this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 3 As shown, a sanitary napkin with anti-leakage function includes a sanitary napkin body 1. The sanitary napkin body 1 includes, from top to bottom, a skin-friendly layer 2, a superconducting layer 3, a composite core 4, an absorbent body 5, an absorbent layer 6, and a breathable bottom film layer 7. The skin-friendly layer 2 has a channeling groove 21 in the middle, the superconducting layer 3 is embedded in the bottom of the channeling groove 21, the absorbent layer 6 has an oblique groove 61 in the middle, the absorbent body 5 is attached to the bottom of the oblique groove 61, and the composite core 4 is attached to the absorbent body 5. The composite core 4 has an arched protrusion shape 41.

[0020] Furthermore, the skin-friendly layer 2 is a hot-air nonwoven fabric surface layer.

[0021] Furthermore, the superconducting layer 3 and the absorption layer 6 have the same dimensions.

[0022] Furthermore, the composite core 4 is an absorbent cotton body that is adapted to fit and abut against the female vaginal opening.

[0023] Furthermore, the absorber 5 is made of high molecular weight SAP polymer material.

[0024] Furthermore, the breathable bottom membrane layer 7 has a built-in silk-oxygen breathable bottom membrane, which is covered with 8,000 breathable micropores (not shown in the schematic diagram due to viewing angle).

[0025] [Example]

[0026] First, during menstruation, the sanitary napkin body 1 is used on the woman's private parts. At this time, the arched protrusion 41 of the composite core 4 of the sanitary napkin body 1 protrudes upward and presses against the woman's private parts. Then, menstrual blood flows out of the private parts, first flowing to the superconducting layer 3 and then spreading outward. Due to the resistance of the composite core 4, the menstrual blood will not pour down all at once, but will be guided by the superconducting layer 3. This setting allows the menstrual blood to spread rapidly. After spreading through the superconducting layer 3, the menstrual blood penetrates to the absorbent body 5 and is quickly absorbed by the absorbent body 5. At this time, most of the menstrual blood is absorbed, and a small amount of menstrual blood spreads to the absorbent layer 6 and is absorbed by the absorbent layer 6. This setting achieves the seepage prevention effect. Finally, the outer layer of the sanitary napkin body 1 is a breathable bottom film layer 7. The breathable bottom film layer 7 has a built-in silk oxygen breathable bottom film with 8,000 breathable micropores, which gives the sanitary napkin body 1 good breathability.

[0027] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0028] This invention firstly features an absorbent core on the absorbent layer, with an arched, protruding composite core that contacts the female intimate area. A superconducting layer exists between the skin-friendly layer and the absorbent core. This design allows menstrual blood to flow out, being held back by the composite core and better spread to the superconducting layer, preventing direct downward flow and instantaneous leakage. Next, an absorbent core made of high-molecular-weight SAP polymer is added to the middle of the absorbent layer. This absorbent core quickly absorbs menstrual blood that has spread to the superconducting layer, completely absorbing most of the blood, with a small portion being absorbed by the absorbent layer itself, thus improving the anti-leakage effect. Finally, the outer layer of the sanitary napkin has a breathable cotton-oxygen bottom membrane with 8000 breathable micropores, providing excellent breathability. This invention boasts a novel structure, effectively prevents leakage, offers superior comfort, and is suitable for widespread application.

[0029] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A sanitary napkin with anti-leakage function, characterized in that: The sanitary napkin body comprises, from top to bottom, a skin-friendly layer, a superconducting layer, a composite core, an absorbent core, an absorbent layer, and a breathable bottom film layer. The skin-friendly layer has a channeling groove in the middle, the superconducting layer is embedded at the bottom of the channeling groove, the absorbent layer has an oblique groove in the middle, the absorbent core is attached to the bottom of the oblique groove, and the composite core is attached to the absorbent core, the composite core being in an arched convex shape.

2. The sanitary napkin with anti-leakage function according to claim 1, characterized in that: The skin-friendly layer is a hot-air nonwoven fabric surface layer.

3. The sanitary napkin with anti-leakage function according to claim 1, characterized in that: The superconducting layer and the absorption layer have the same dimensions.

4. A sanitary napkin with anti-leakage function according to claim 1, characterized in that: The composite core is an absorbent cotton body that fits and abuts against the female vaginal opening.

5. A sanitary napkin with anti-leakage function according to claim 1, characterized in that: The absorber is made of high molecular weight SAP polymer material.

6. A sanitary napkin with anti-leakage function according to claim 1, characterized in that: The breathable bottom membrane layer has a built-in silk oxygen breathable bottom membrane, which is covered with 8,000 breathable micropores.

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