Anti-side-leakage sanitary towel

Abstract

The utility model discloses a side leakage prevention sanitary towel which comprises a sanitary towel body and sanitary towel side wings, and the sanitary towel side wings are symmetrically attached to the two sides of the sanitary towel body. The sanitary napkin side wing comprises water-repellent ES fibers and a PE film, and the water-repellent ES fibers and the PE film are sequentially compounded together from top to bottom. The side, close to the core body in the sanitary towel body, of the compounded water-repellent ES fiber and PE film is folded and then compounded with the surface layer, and the folded part forms a leakage-proof side edge. The leakage-proof side edges of the side wings of the sanitary towel are covered with breathable and liquid-tight PE films through water-repellent soft ES fibers, side leakage can be effectively prevented, the sanitary towel can cope with large menstruation and tidal surge, the ES fiber surface layers are soft and have no irritation when making contact with the skin of the thigh roots, and the use experience in the physiological period and the mood comfort degree are improved.

Description

Technical Field

[0001] This utility model relates to the field of women's hygiene products, and in particular to a leak-proof sanitary napkin. Background Technology

[0002] Sanitary napkins generally consist of a top layer, a diversion layer, an absorbent core, a bottom layer, and side wings. The top layer is often made of cotton or non-woven fabric, which is soft and skin-friendly, quickly absorbing liquid and keeping the wearer dry. The diversion layer is made of materials with good diversion properties, which can quickly guide liquid to the absorbent core, increasing the absorption area. The absorbent core is the core part, usually made of fluff pulp and superabsorbent polymer, which can absorb and store a large amount of menstrual blood and prevent backflow. The bottom layer is a breathable membrane with many micropores, which prevents leakage while ensuring breathability. The side wings are often made of water-repellent non-woven fabric and are fixed to the underwear by adhesive or other methods to prevent menstrual blood from flowing out from the sides. Some also have a three-dimensional protective design to better fit the body's curves and prevent side leakage.

[0003] Most sanitary napkins currently on the market use white, ordinary SMS non-stick water-repellent fabric or hot-air water-repellent fabric attached to the surface layer for their side wings. While these ordinary water-repellent fabrics offer some water repellency, they are not completely leak-proof. In actual use, leakage often occurs, causing clothing stains and significant inconvenience to users. Furthermore, limited by the manufacturing process and cost considerations of ordinary water-repellent fabrics, their design is relatively simple. This monotonous style fails to enhance the overall aesthetic appeal of the sanitary napkin and does not meet users' aesthetic needs. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a highly comfortable sanitary napkin that prevents side leakage.

[0005] This utility model is implemented as follows: A leak-proof sanitary napkin includes a sanitary napkin body and sanitary napkin side wings. The sanitary napkin body includes, from top to bottom, a surface layer, a core, a bottom film, and an adhesive backing. The sanitary napkin side wings are symmetrically attached to both sides of the sanitary napkin body. The sanitary napkin side wings include water-repellent ES fibers and a PE film. The water-repellent ES fibers and PE film are laminated together from top to bottom. After lamination, the side of the water-repellent ES fibers and PE film closest to the core of the sanitary napkin body is folded and laminated together with the surface layer. The folded part forms a leak-proof side.

[0006] Furthermore, the leak-proof side can be divided into a fixed leak-proof side and a movable leak-proof side, with the fixed leak-proof side connected to the surface layer.

[0007] Furthermore, two leak-proof sides are symmetrically arranged relative to the center point of the sanitary napkin body.

[0008] Furthermore, the length of the leak-proof side is equal to the length of the surface layer.

[0009] Furthermore, the width of the active leak-proof side is 1mm-8mm.

[0010] Furthermore, the PE membrane is an air-permeable but liquid-impermeable PE membrane.

[0011] Furthermore, after the surface layer is combined with the core, the entire assembly is rolled by a guide roller to form a guide groove.

[0012] The beneficial effects of this invention are as follows: Water-repellent, ultra-soft ES fibers are covered with a breathable yet liquid-impermeable PE film to form leak-proof sides. These leak-proof sides effectively prevent side leakage, even under heavy flow and surging conditions. The liquid-impermeable PE film overcomes the shortcomings of ordinary water-repellent fabric side wings, which cannot completely repel water and prevent leakage. Furthermore, it allows for the display of colors and patterns, providing aesthetic decoration for sanitary napkins and enhancing user comfort and enjoyment.

[0013] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a front view of the utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention (AA).

[0016] Figure 3 This is an exploded view of the structure of this utility model;

[0017] Figure 4 This is a partially enlarged cross-sectional view of the side wing of the sanitary napkin of this utility model.

[0018] In the diagram: sanitary napkin body 10, sanitary napkin side wings 20, adhesive backing 1, bottom film 2, core 3, water-repellent ES fiber 4, PE film 5, surface layer 6, leak-proof side 7, structural adhesive 8, fixed leak-proof side 71, movable leak-proof side 72. Detailed Implementation

[0019] Example 1:

[0020] A type of leak-proof sanitary napkin, such as Figures 1-4As shown, the sanitary napkin includes a main body 10 and side wings 20. The side wings 20 are symmetrically attached to both sides of the main body 10. The main body 10 includes a surface layer 6, a core 3, a bottom film 2, and an adhesive backing 1, which are sequentially bonded together from top to bottom. The side wings 20 include water-repellent ES fibers 4 and a PE film 5, which are sequentially laminated together from top to bottom to form an integral composite water-repellent fabric. The PE film 5 of the composite water-repellent fabric is bonded to the bottom film 2 of the sanitary napkin body 10. After lamination, the side of the composite water-repellent ES fiber 4 and PE film 5 near the core 3 of the sanitary napkin body 10 is folded and laminated with the surface layer 6. The folded part forms a leak-proof side 7, which can be divided into a fixed leak-proof side 71 and a movable leak-proof side 72. The fixed leak-proof side 71 is connected to the surface layer 6 by structural adhesive or by ultrasonic lamination or hot rolling lamination. The connection position is as follows: Figure 3 The dashed section is shown as structural adhesive 8.

[0021] Two leak-proof sides 7 are symmetrically arranged relative to the center point of the sanitary napkin body 10.

[0022] The length of the leak-proof side 7 is equal to the length of the surface layer 6.

[0023] The width of the active leak-proof side 72 is 1mm-8mm.

[0024] The PE membrane 5 is an air-permeable but liquid-impermeable PE membrane.

[0025] After the surface layer 6 is combined with the core 3, the whole is rolled by a guide roller to form a guide groove.

[0026] The leak-proof side 7 has a certain height, which forms a dam-like structure at the edge of the sanitary napkin body. When liquid or blood flows towards the edge of the sanitary napkin under gravity or due to human activity, the height of the side strip can prevent liquid from flowing directly from the edge. Furthermore, when blood comes into contact with the leak-proof side 7, the pressure causes it to seep into the bottom of the movable leak-proof side 72, raising it to a certain height. This height is sufficient to block the liquid under normal circumstances, allowing it to flow inside the sanitary napkin, thus providing initial physical protection. Simultaneously, the leak-proof side 7 is tightly connected to the core 3 of the sanitary napkin body 10, allowing liquid or blood to easily permeate from the leak-proof side 7 through the drainage channels of the surface layer 6 into the absorbent core of the body, where it is processed by a larger absorbent area.

[0027] The leak-proof side panels 7 of the sanitary napkin are made of water-repellent ES fibers covered with a breathable but liquid-impermeable PE film, ensuring they do not cause discomfort or irritation when in contact with the skin at the groin. They effectively prevent menstrual blood from seeping into the side panels, providing better protection even during heavy periods or strenuous activity. Due to limitations in production processes and costs, traditional water-repellent fabrics often have a relatively simple appearance. In contrast, PE film is not subject to these limitations and can easily achieve colors and patterns. By combining water-repellent ES fibers with a PE film, an effective carrier for aesthetic decoration is added to the sanitary napkin. This not only breaks through the design limitations of ordinary water-repellent fabrics, significantly improving the visual appeal of the sanitary napkin and catering to diverse aesthetic preferences, but also enhances the user's comfort and pleasure from a psychological perspective.

[0028] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Although this utility model has been described in detail with reference to the preferred arrangement, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model (such as the connection method, the shape of each element, etc.) without departing from the spirit and scope of the technical solution of this utility model.

Claims

1. A leak-proof sanitary napkin, comprising a sanitary napkin body (10) and sanitary napkin side wings (20), wherein the sanitary napkin body (10) comprises, from top to bottom, a surface layer (6), a core (3), a bottom film (2), and an adhesive backing (1), and the sanitary napkin side wings (20) are symmetrically attached to both sides of the sanitary napkin body (10), characterized in that, The sanitary napkin side wings (20) include water-repellent ES fibers (4) and PE film (5). The water-repellent ES fibers (4) and PE film (5) are bonded together from top to bottom. After bonding, the water-repellent ES fibers (4) and PE film (5) are folded together with the surface layer (6) on the side close to the core (3) of the sanitary napkin body (10). The folded part forms a leak-proof side (7).

2. The anti-leakage sanitary napkin according to claim 1, characterized in that, The leak-proof side (7) includes a fixed leak-proof side (71) and a movable leak-proof side (72), and the fixed leak-proof side (71) is connected to the surface layer (6).

3. The anti-leakage sanitary napkin according to claim 1, characterized in that, Two leak-proof sides (7) are symmetrically arranged relative to the center point of the sanitary napkin body (10).

4. The anti-leakage sanitary napkin according to claim 1, characterized in that, The length of the leak-proof side (7) is equal to the length of the surface layer (6).

5. The anti-leakage sanitary napkin according to claim 2, characterized in that, The width of the active leak-proof side (72) is 1mm-8mm.

6. The anti-leakage sanitary napkin according to claim 1, characterized in that, The PE membrane (5) is an air-permeable but liquid-impermeable PE membrane.

7. The anti-leakage sanitary napkin according to claim 1, characterized in that, After the surface layer (6) is combined with the core (3), the whole is rolled by the guide roller to form a guide groove.

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