Multiple side leakage prevention sanitary towel

By designing side protective tampons, anti-side leakage grooves and second protective tampons in sanitary napkins, the problem of liquid leakage during exercise of existing sanitary napkins is solved, and more effective menopause absorption and prevention of lateral leakage is achieved.

CN222885400UActive Publication Date: 2025-05-20GUANGZHOU FURUI TECH CO LTD
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Patent Information

Application Number
CN202421614510.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-05-20
Estimated Expiration
2034-07-09

AI Technical Summary

Technical Problem

Existing sanitary napkins cannot effectively absorb menstrual blood when exercise or deform, resulting in liquid leakage and clothing contamination, especially when walking, standing, sitting or exercising.

Method used

A multiple anti-side leakage sanitary napkin is designed, adopting the bottom layer and the surface structure, with side protective tampons on both sides of the surface, anti-seepage stacks on one side near the bottom layer, and embossed components are set up in the middle to position the interlayer.

Benefits of technology

Through the combination of side protective tampons, anti-side leakage grooves and second protective tampons, menstrual bleeding is effectively prevented from leaking to both sides and the back, ensuring that menstrual blood flows back to the middle of the surface and absorbs through the absorbent layer, thereby preventing menstrual blood from flowing to external clothing and maintaining a cleaner and hygienic private environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multiple side leakage prevention sanitary towel which comprises a bottom layer and a surface layer, an edge sealing part is arranged on the outer side of the bottom layer, side protection cotton slivers are arranged on the two sides of the surface layer, an anti-permeation laminated layer is arranged on the side, close to the bottom layer, of the surface layer, and an embossing assembly used for positioning all interlayers in the anti-permeation laminated layer is arranged in the middle of the surface layer. The utility model relates to a hygienic product, which is provided with side protection cotton slivers, side leakage prevention grooves and second protection cotton slivers, non-woven fabrics on two sides of the middle are folded and compounded with films, and the side protection cotton slivers on the two sides can block menstrual blood leaking towards the two sides. The second protective cotton sliver can block menstrual blood leaking backwards and enable the menstrual blood to flow back to the middle of the surface layer and to be absorbed at the middle speed, so that the menstrual blood is effectively prevented from flowing to the outside of the sanitary towel and polluting clothes; the multi-side-leakage-prevention sanitary towel can prevent menstrual blood from flowing to underpants in multiple ways, and the menstrual period is cleaner and more sanitary.
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Description

Technical Field

[0001] The utility model relates to a sanitary product, in particular to a multi - leak - proof sanitary napkin. Background Art

[0002] During use, a sanitary napkin uses a liquid absorption layer to effectively absorb menstrual blood and seeks to prevent menstrual blood from leaking outside the sanitary napkin. For existing sanitary napkins, when the sanitary napkin is deformed by an external force due to movement and such deformation occurs in a state where the absorption capacity cannot be fully exerted, there is often a problem that menstrual blood cannot be effectively absorbed and liquid leakage occurs, contaminating clothes. In particular, when the user walks, stands up, sits, or exercises, the crotch part between the hip bones constantly moves relative to the skin, and it is easy to generate a gap between the user's sanitary napkin and the wearer's body, and excreted liquid flows out from the gap, resulting in so - called side leakage, thus contaminating clothes. And when the user sits, for women with a large amount of menstrual fluid, menstrual blood easily leaks to the sides and rear of the sanitary napkin onto the underwear, which is very unhygienic and inelegant. Summary of the Invention

[0003] The purpose of the utility model is to provide a multi - leak - proof sanitary napkin to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A multi - leak - proof sanitary napkin includes a bottom layer and a surface layer. A sealing edge part is arranged on the outside of the bottom layer. Side - protection cotton strips are arranged on both sides of the surface layer. An anti - penetration laminated layer is arranged on the side of the surface layer close to the bottom layer. A corrugated component for positioning each interlayer inside the anti - penetration laminated layer is arranged in the middle of the surface layer.

[0006] In a preferred embodiment of the utility model, the surface layer is made of soft cotton, and the two sides and the periphery of the surface layer are adhered to the bottom layer. The two ends of the surface layer are arc - shaped, and the middle part of the surface layer is strip - shaped. A negative - ion chip is arranged in the middle of the surface layer. The two side - protection cotton strips are formed by folding both sides of the surface layer.

[0007] In a preferred embodiment of the utility model, an anti - side - leakage groove is adhesively bonded to the upper side of the bottom layer. The anti - side - leakage groove is arranged under the side - protection cotton strip. The side - protection cotton strip is long - strip - shaped. A second protection cotton strip is arranged at the rear side of the upper end of the surface layer. The second protection cotton strip is arc - shaped.

[0008] In a preferred embodiment of the utility model, an adhesive is arranged on the outside of the bottom layer. A first release paper is covered on the outside of the adhesive. Wings are arranged on both sides of the bottom layer. An adhesion part is arranged on the side of the wing far from the surface layer. A second release paper is covered on the outside of the adhesion part.

[0009] In a preferred embodiment of the present utility model, the anti-permeation laminate is composed of a front-layer non-woven fabric covering, a water-absorbing core, and a rear-layer non-woven fabric covering.

[0010] In a preferred embodiment of the present utility model, the front-layer non-woven fabric covering is attached to the rear side of the surface layer, and the water-absorbing core is located between the front-layer non-woven fabric covering and the rear-layer non-woven fabric covering.

[0011] In a preferred embodiment of the present utility model, the embossing assembly includes a first embossing and a second embossing, and the number of the first embossings is multiple.

[0012] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Beneficial effects

[0013] The present utility model is provided with side protection cotton strips, anti-side leakage grooves, and a second protection cotton strip. The non-woven fabrics on both sides in the middle are folded and compounded with a film. When the menstrual blood suddenly gushes out in a large amount, the side protection cotton strips on both sides can block the menstrual blood leaking to both sides. The second protection cotton strip can block the menstrual blood leaking backward and make the menstrual blood flow back to the middle of the surface layer, and is absorbed through the middle quickly, thereby effectively preventing the menstrual blood from flowing out of the sanitary napkin and causing clothing pollution; this kind of multi-layer anti-side leakage sanitary napkin can prevent the menstrual blood from flowing onto the underwear in multiple ways, making the menstrual period cleaner and more hygienic.

[0014] The present utility model is green and healthy, and the parts in contact with the human body do not contain any drugs and chemical components, allowing women to continuously have a healthy, comfortable, and clean private environment;

[0015] The present utility model is provided with an embossing assembly. The first embossing is a heart-shaped embossing composed of several round holes, showing a left-right symmetric structure. The middle part of the second embossing is an asymmetric open heart structure, and the embossing grooves on both sides form two-wing structures on both sides of the heart-shaped embossing in the middle, making the surface layer of the sanitary napkin more beautiful. At the same time, there are multiple first embossings and second embossings, making the connections between the various laminates inside the anti-permeation laminate closer. Furthermore, the anti-permeation laminate can fully absorb the menstrual blood and prevent the menstrual blood from leaking. The first embossing and the second embossing occupy a relatively large area, which can fully divert the menstrual blood and make the surface layer drier. Brief description of the drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 It is a structural schematic diagram of a multi-layer anti-side leakage sanitary napkin.

[0018] Figure 2 It is a schematic structural diagram of each part in a multi - leak - proof sanitary napkin.

[0019] Figure 3 It is a multi - leak - proof sanitary napkin Figure 2 with a schematic upward - looking structure diagram.

[0020] Figure 4 It is a schematic sectional structure diagram of a multi - leak - proof sanitary napkin.

[0021] In the figure: bottom layer 100; side wings 110; adhesion part 120; surface layer 200; edge - sealing part 201; negative - ion chip 210; anti - side - leakage groove 220; side - edge protective cotton strip 300; second protective cotton strip 310; embossing assembly 400; first embossing 410; second embossing 420; anti - penetration laminate 500; front - layer non - woven fabric covering 501; water - absorbing core 502; back - layer non - woven fabric covering 503. Specific embodiments

[0022] The following describes in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0023] As Figures 1-4 , it includes a bottom layer 100 and a surface layer 200. An edge - sealing part 201 is arranged on the outer side of the bottom layer 100. Side - edge protective cotton strips 300 are arranged on both sides of the surface layer 200. An anti - penetration laminate 500 is arranged on the side of the surface layer 200 close to the bottom layer 100. An embossing assembly 400 for positioning each interlayer inside the anti - penetration laminate 500 is arranged in the middle of the surface layer 200. The bottom layer 100 is a breathable bottom film. Both ends of the side - edge protective cotton strips 300 are fixedly connected to the bottom layer 100 through the edge - sealing part 201. The surface layer 200 is made of soft cotton, and the two sides and the periphery of the surface layer 200 are adhered to the bottom layer 100. Both ends of the surface layer 200 are arc - shaped, and the middle of the surface layer 200 is strip - shaped. A negative - ion chip 210 is arranged in the middle of the surface layer 200. The two side - edge protective cotton strips 300 on both sides are formed by folding the two sides of the surface layer 200. The non - woven fabrics on both sides in the middle are folded and compounded with a film. The negative - ion chip 210 is synthesized by magnetic fibers and negative - ion antibacterial materials, so that the water absorption and water retention performance in the middle is good. The surface layer 200 is soft and skin - friendly.

[0024] As Figures 2-4, the anti - penetration laminate 500 is composed of a front - layer non - woven paper wrapping 501, a water - absorbing core 502, and a rear - layer non - woven paper wrapping 503; the front - layer non - woven paper wrapping 501 is attached to the rear side of the surface layer 200, and the water - absorbing core 502 is located between the front - layer non - woven paper wrapping 501 and the rear - layer non - woven paper wrapping 503; the water - absorbing core 502 is made of fluff pulp doped with a superabsorbent polymer, forming a strong absorber. Once menstrual blood seeps into this layer, it will be firmly adhered. The water - absorbing core 502 is wrapped between the front - layer non - woven paper wrapping 501 and the rear - layer non - woven paper wrapping 503. The water - absorbing core 502 is attached to the rear side of the front - layer non - woven paper wrapping 501, the rear - layer non - woven paper wrapping 503 is attached to the rear side of the water - absorbing core 502, and an anti - penetration membrane is attached to the rear side of the rear - layer non - woven paper wrapping 503. The anti - leakage membrane is composed of waterproof paper, and the bottom layer 100 is attached to the rear side of the anti - penetration membrane;

[0025] As Figures 1-2 , the embossing assembly 400 includes a first embossing 410 and a second embossing 420. The number of the first embossing 410 is multiple, and the first embossing 410 is composed of a number of round holes; the number of the second embossing 420 is multiple. A number of round holes on the inner wall of the first embossing 410 are in a left - right symmetric structure, forming a symmetric heart shape. The second embossing 420 is composed of three strip - shaped grooves, with an asymmetric open - heart - shaped structure in the middle and wing - shaped structures formed by the embossing grooves on both sides. The symmetric heart - shaped first embossing 410 and the asymmetric heart - shaped second embossing 420 with wings make the sanitary napkin more beautiful. At the same time, the first embossing 410 and the second embossing 420 make the connection between the front - layer non - woven paper wrapping 501, the water - absorbing core 502, and the rear - layer non - woven paper wrapping 503 inside the anti - penetration laminate 500 tighter. The embossing assembly 400 has a guiding effect on menstrual blood, enabling the anti - penetration laminate 500 to fully absorb menstrual blood and prevent menstrual blood leakage; the embossing assembly 400 occupies a relatively large area and can fully guide menstrual blood;

[0026] As Figures 1-4 , an anti - side - leakage groove 220 is adhesively bonded to the upper side of the bottom layer 100. The anti - side - leakage groove 220 is arranged under the side - protection cotton strip 300. The side - protection cotton strip 300 is strip - shaped, and a second protection cotton strip 310 is arranged at the rear side of the upper end of the surface layer 200. The second protection cotton strip 310 is arc - shaped; the anti - side - leakage groove 220 is located on both sides of the anti - penetration laminate 500. When the amount of menstrual blood is large, the anti - side - leakage groove 220 and the side - protection cotton strip 300 can effectively prevent menstrual blood from leaking to both sides; the second protection cotton strip 310 is arranged at the rear side of the surface layer 200 close to the human body, and the second protection cotton strip 310 can prevent menstrual blood from leaking backward;

[0027] As Figure 1 and 3, an adhesive is provided on the outer side of the bottom layer 100, a first release paper is covered on the outer side of the adhesive, side wings 110 are provided on both sides of the bottom layer 100, an adhesion part 120 is provided on the side of the side wing 110 away from the surface layer 200, and a second release paper is covered on the outer side of the adhesion part 120; the bottom layer 100 film can be pasted on the underwear through the adhesive; the first release paper plays a protective role for the adhesive; the adhesion part 120 on the lower side of the side wing 110 can be pasted on the other side of the underwear;

[0028] The above structures and principles are all common standard parts or components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods;

[0029] The working principle of the present utility model is: during use, tear off the first release paper, adhere the bottom layer 100 to the inside through the adhesive, then tear off the second release paper, turn over the side wing 110, and through the adhesion part 120, adhere the side wing 110 to the other side of the inside. The menstrual blood passes through the soft cotton surface layer composed of the surface layer 200, through the negative ion chip 210, the front layer non-woven paper covering 501, and the water-absorbing core 502. The water-absorbing core 502 can fully absorb the menstrual blood, prevent the menstrual blood from spreading out, and at the same time keep the surface layer 200 dry. When the amount of menstrual blood is large, it is blocked by the side protection cotton strips 300 on both sides. At the same time, the anti-side leakage groove 220 can block the menstrual blood leaking to the left and right, preventing side leakage of the menstrual blood, and the second protection cotton strip 310 can block the menstrual blood leaking backward;

[0030] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A multi-layer side leakage prevention sanitary napkin, comprising a bottom layer (100) and a surface layer (200), characterized in that: The outer side of the bottom layer (100) is provided with an edge sealing portion (201), the two sides of the surface layer (200) are provided with side protection cotton strips (300), the side of the surface layer (200) close to the bottom layer (100) is provided with an anti-permeability laminate (500), and the middle of the surface layer (200) is provided with an embossed component (400) for positioning each interlayer inside the anti-permeability laminate (500).

2. A multi-layer side leakage prevention sanitary napkin according to claim 1, characterized in that: The surface layer (200) is made of soft cotton, and the surface layer (200) is adhered to the two sides and periphery of the bottom layer (100), the two ends of the surface layer (200) are arc-shaped, and the middle of the surface layer (200) is strip-shaped, and a negative ion chip (210) is arranged in the middle of the surface layer (200), and the side protection cotton strips (300) on both sides are formed by folding the two sides of the surface layer (200).

3. A multi-layer side leakage prevention sanitary napkin according to claim 1, characterized in that: The bottom layer (100) has an anti-side leakage groove (220) bonded to its upper side, the anti-side leakage groove (220) being arranged on the lower side of a side protection tampon (300), the side protection tampon (300) being in the shape of a long strip, and a second protection tampon (310) being arranged on the rear side of the upper end of the surface layer (200), the second protection tampon (310) being in the shape of an arc.

4. The multi-layer side leakage prevention sanitary napkin according to claim 1, characterized in that: The bottom layer (100) is provided with a backing adhesive on its outer side, and the backing adhesive is covered with a first release paper on its outer side. Side wings (110) are provided on both sides of the bottom layer (100), and an adhesive portion (120) is provided on the side of the side wing (110) away from the surface layer (200), and the adhesive portion (120) is covered with a second release paper on its outer side.

5. The multi-layer side leakage prevention sanitary napkin according to claim 1, characterized in that: The anti-permeability laminate (500) comprises a front layer of dust-free paper covering (501), a water-absorbent core (502), and a rear layer of dust-free paper covering (503).

6. A multi-layer side leakage prevention sanitary napkin according to claim 5, characterized in that: The front layer of dust-free paper wrapping (501) is attached to the rear side of the surface layer (200), and the water-absorbing core (502) is located between the front layer of dust-free paper wrapping (501) and the rear layer of dust-free paper wrapping (503).

7. The multi-layer side leakage prevention sanitary napkin according to claim 1, characterized in that: The embossing assembly (400) comprises a first embossing (410) and a second embossing (420), and the first embossing (410) is present in a plurality.