Anti-side-leakage sanitary towel

Abstract

The utility model provides a side leakage prevention sanitary towel which comprises a waterproof base layer, a contact cloth layer arranged at the upper end of the waterproof base layer and a water absorption core body arranged between the waterproof base layer and the contact cloth layer and located in the middle of the waterproof base layer. The two side openings are formed in the contact cloth layer and located on the left side and the right side of the water absorption core body respectively, and the two pieces of side edge waterproof cloth are arranged on the waterproof base layer and located in the two side openings respectively. The side edge fixing layers are arranged between the two pieces of side edge waterproof cloth and the waterproof base layer and are far away from the end of the water absorption core body, and the front side fixing layer and the rear side fixing layer are arranged between the two pieces of side edge waterproof cloth and the waterproof base layer and are located on the front side and the rear side. The leakage-proof pocket opening is formed between the side edge waterproof cloth and the waterproof base layer, the side edge core body is arranged on the waterproof base layer and located in the leakage-proof pocket opening, and the side edge fixing layer is communicated with the front side fixing layer and the rear side fixing layer.

Description

Technical Field

[0001] This utility model relates to the field of sanitary napkin technology, specifically to a leak-proof sanitary napkin. Background Technology

[0002] Sanitary napkins are hygiene products used by women during menstruation. They are primarily made of cotton, non-woven fabric, pulp, or a composite of these materials, forming a polymer or polymer composite paper. They consist of three layers from the inside out: a top layer, an absorbent core, and a bottom layer. Two tabs are designed on the side for attaching the sanitary napkin to underwear.

[0003] Although current sanitary napkins use grooves or raised strips on the sides to prevent leakage, this method alone is not ideal. Leakage can still occur when lying on your side or walking while wearing a sanitary napkin, thus failing to improve its leak-proof effect. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof sanitary napkin that addresses the shortcomings and deficiencies of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof sanitary napkin, comprising a waterproof base layer, a contact fabric layer disposed at the upper end of the waterproof base layer, and an absorbent core disposed between the waterproof base layer and the contact fabric layer and located in the middle of the waterproof base layer, characterized in that: it further comprises two side openings respectively located on the left and right sides of the absorbent core on the contact fabric layer, two side waterproof fabrics respectively disposed on the waterproof base layer and located within the two side openings, a side fixing layer respectively disposed between the two side waterproof fabrics and the waterproof base layer and located away from the absorbent core, two front and rear side fixing layers respectively disposed between the two side waterproof fabrics and the waterproof base layer and located on the front and rear sides, a leak-proof pocket formed between the side waterproof fabrics and the waterproof base layer, and a side core disposed on the waterproof base layer and located within the leak-proof pocket, wherein the side fixing layers are connected to the front and rear side fixing layers.

[0006] A further improvement is that the waterproof base layer is a polyethylene film or a polyurethane film.

[0007] A further improvement is that the side waterproofing fabric is made of polyethylene film or polyurethane film.

[0008] A further improvement is that the side core is made of superabsorbent polymer, cotton core, or fluff pulp.

[0009] A further improvement is that the absorbent core is made of superabsorbent polymer, cotton, or fluff pulp.

[0010] A further improvement is that the side core is arranged along the length of the side waterproof cloth.

[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: When wearing a sanitary napkin while lying on one's side or walking, since the side waterproof fabric is set on the left and right sides of the absorbent core, if liquid flows to the left and right sides, the flowing liquid is collected through the leak-proof pocket. The side fixing layer and the front and rear side fixing layers prevent the liquid in the leak-proof pocket from leaking out from the side. When the liquid enters the leak-proof pocket, the side core can absorb the liquid, thereby preventing the liquid in the leak-proof pocket from overflowing. Furthermore, both the side core and the side waterproof fabric are set on the waterproof base layer, so the liquid in the leak-proof pocket will not penetrate to the skin surface. The above settings can improve the side leakage prevention effect of the sanitary napkin.

[0012] Further benefits: By setting up front and rear fixing layers, the front and rear sides of the side waterproof cloth are fixed, which can prevent the side waterproof cloth from turning over and wrinkling, thus losing its anti-leakage effect. In addition, the setting of front and rear fixing layers and side fixing layers makes the side waterproof cloth form a leak-proof pocket shape, which allows liquid to stay in the leak-proof pocket when it leaks, preventing side leakage.

[0013] Further benefits: While absorbing liquid, the side core also supports the side waterproof fabric, causing the middle of the side waterproof fabric to arch upwards to better form a leak-proof pocket shape. In addition, the side core can seal the gap between the side of the sanitary napkin and the skin when wearing the sanitary napkin, thereby further improving the side leakage prevention effect.

[0014] Further benefits: When the side waterproof fabric arches upward in the middle, the menstrual flow mainly gathers in the middle of the absorbent core, and the largest opening of the upward-arched leak-proof pocket is located on the left and right sides of the middle of the absorbent core. Therefore, when the liquid flows to the side, the leak-proof pocket can more effectively collect the flowing liquid. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 This is a top sectional view of the absorbent core and the side core of this utility model;

[0018] Figure 3 It corresponds Figure 1 Enlarged view of part A;

[0019] Figure 4 This is a front sectional view of the waterproof base layer, contact fabric layer, side waterproof fabric, and side core of this utility model;

[0020] Figure 5 This is a structural schematic diagram of the waterproof base layer and the side waterproof fabric in this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Waterproof base layer; 2. Contact fabric layer; 3. Absorbent core; 4. Side opening; 5. Side waterproof fabric; 6. Side fixing layer; 7. Front and rear side fixing layer; 8. Leak-proof pocket; 9. Side core. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] See Figures 1 to 5 As shown, the technical solution adopted in this specific embodiment is: a leak-proof sanitary napkin, including a waterproof base layer 1, a contact fabric layer 2 disposed at the upper end of the waterproof base layer 1, and an absorbent core 3 disposed between the waterproof base layer 1 and the contact fabric layer 2 and located in the middle of the waterproof base layer 1. The feature is that it further includes two side openings 4 opened on the contact fabric layer 2 and respectively located on the left and right sides of the absorbent core 3; two side waterproof fabrics 5 respectively disposed on the waterproof base layer 1 and located within the two side openings 4; a side fixing layer 6 respectively disposed between the two side waterproof fabrics 5 and the waterproof base layer 1 and located away from the absorbent core 3; two front and rear side fixing layers 7 respectively disposed between the two side waterproof fabrics 5 and the waterproof base layer 1 and located on the front and rear sides; a leak-proof pocket 8 formed between the side waterproof fabrics 5 and the waterproof base layer 1; and a side core 9 disposed on the waterproof base layer 1 and located within the leak-proof pocket 8. The side fixing layer 6 is connected to the front and rear side fixing layers 7.

[0024] The absorbent core 3 is placed on the waterproof base layer 1, and the contact fabric layer 2 is covered on the waterproof base layer 1 by heat pressing or bonding. The side fixing layer 6 and the front and rear fixing layers 7 are both applied with adhesive between the side waterproof fabric 5 and the waterproof base layer 1, and then fixed by heat pressing. This seals the edges of the side waterproof fabric 5 to prevent leakage. The side core 9 is rectangular, long and curved, or curved with a raised center that gradually slopes downwards. The side fixing layer 6 is placed on the left or right side of the side waterproof fabric 5, and the front and rear fixing layers are placed on the front and rear sides of the side waterproof fabric 5.

[0025] The waterproof base layer 1 is a polyethylene film or a polyurethane film.

[0026] The side waterproof fabric 5 is a polyethylene film or a polyurethane film. Polyethylene film is one of the most common waterproof materials for sanitary napkins. It is a microporous waterproof material with an independent pore structure, offering excellent waterproof performance and effectively preventing liquid penetration, while also providing some breathability to allow the skin to breathe and enhance comfort for women. Polyurethane film is a new type of waterproof and breathable material with good elasticity and toughness, suitable for the outer layer of high-end sanitary napkin products. It can efficiently absorb large amounts of secretions, keeping the skin dry and clean, while also helping to prevent bacterial growth.

[0027] The side core 9 is made of superabsorbent polymer, cotton core, or fluff pulp.

[0028] The absorbent core 3 is made of superabsorbent polymer (SAP), cotton, or fluff pulp. While fluff pulp is less absorbent than SAP, it becomes soft after absorbing water. However, fluff pulp is often made from recycled materials and may contain excessive amounts of bleach and bacteria, so its safety should be considered. SAP is a functional polymer material capable of absorbing hundreds or even thousands of times its own weight in water and has a strong water-retention capacity, hence it is called a superabsorbent or high-water-retention agent. It absorbs water quickly without backflow, making it a relatively ideal absorbent material. Cotton has advantages such as good breathability, strong absorbency, and large water absorption capacity, making sanitary napkins cool and comfortable to use in summer.

[0029] The side core 9 is arranged along the length of the side waterproof cloth 5.

[0030] The working principle of this invention is as follows: When wearing a sanitary napkin while lying on your side or walking, the side waterproof fabric 5 is located on the left and right sides of the absorbent core 3. If liquid flows to the left and right sides, it is collected by the leak-proof pocket 8. The side fixing layer 6 and the front and rear side fixing layers 7 prevent the liquid in the leak-proof pocket 8 from leaking from the side. When liquid enters the leak-proof pocket 8, the side core 9 can absorb the liquid, thereby preventing the liquid in the leak-proof pocket 8 from overflowing. Since both the side core 9 and the side waterproof fabric 5 are located on the waterproof base layer 1, the liquid in the leak-proof pocket 8 will not penetrate to the skin surface. The above settings can improve the side leakage prevention effect of the sanitary napkin.

[0031] This utility model aims to protect the product's structure. The model numbers of the individual components are not protected by this utility model and are common knowledge. Any component on the market that can achieve the functions described above can be used as a leak-proof sanitary napkin. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A leak-proof sanitary napkin, comprising a waterproof base layer, a contact fabric layer disposed at the upper end of the waterproof base layer, and an absorbent core disposed between the waterproof base layer and the contact fabric layer and located in the middle of the waterproof base layer, characterized in that: It also includes two side openings on the contact fabric layer and located on the left and right sides of the absorbent core, two side waterproof fabrics on the waterproof base layer and located within the two side openings, side fixing layers between the two side waterproof fabrics and the waterproof base layer and located away from the absorbent core, two front and rear side fixing layers between the two side waterproof fabrics and the waterproof base layer and located on the front and rear sides, a leak-proof pocket formed between the side waterproof fabrics and the waterproof base layer, and a side core on the waterproof base layer located within the leak-proof pocket. The side fixing layers are connected to the front and rear side fixing layers.

2. The anti-leakage sanitary napkin according to claim 1, characterized in that: The waterproof base layer is a polyethylene film or a polyurethane film.

3. The anti-leakage sanitary napkin according to claim 1, characterized in that: The side waterproofing fabric is a polyethylene film or a polyurethane film.

4. The anti-leakage sanitary napkin according to claim 1, characterized in that: The side core is made of superabsorbent polymer, cotton core, or fluff pulp.

5. A leak-proof sanitary napkin according to claim 1, characterized in that: The absorbent core is made of superabsorbent polymer, cotton core, or fluff pulp.

6. The anti-leakage sanitary napkin according to claim 1, characterized in that: The side core is arranged along the length of the side waterproof cloth.

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