3D heightening three-dimensional protection side-leakage-free protection wing

By using a 3D three-dimensional absorbent component and a multi-layer non-woven fabric design, the problems of side leakage and bulkiness of the protective wings are solved, achieving the effects of rapid water absorption and preventing side leakage.

CN223958941UActive Publication Date: 2026-03-03KUNSHAN YARI SANITARY PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing wing surface has a flat structure, which makes it easy to leak when there is a lot of menstrual blood. In addition, the traditional multi-layer design makes the product heavy and slow to absorb water.

Method used

The water-absorbing component adopts a 3D three-dimensional structure, including an absorbent layer, a spacer layer, a waterproof layer, and a flow-blocking layer. The flow-blocking layer is fixed by cotton thread stitching. The absorbent layer has honeycomb holes and permeable holes. After the water-absorbing resin expands, it squeezes the flow-blocking layer to form a three-dimensional protective edge. Combined with the grid-like absorbent layer and the multi-layer non-woven fabric design, the side leakage prevention effect is improved.

Benefits of technology

It effectively prevents menstrual blood leakage, absorbs water quickly, and maintains the same thickness when the product is not wet as when it is upright after absorbing water, providing good protection and comfort.

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Abstract

The utility model relates to the technical field of hygienic products, in particular to a 3D (three-dimensional) height-increasing three-dimensional protective side-leakage-free protective wing which comprises a water absorption component, a spacing layer is adhered to the back surface of the water absorption component, a waterproof layer is adhered to the back surface of the spacing layer, side wings are arranged in the middles of two sides of the waterproof layer, and a flow blocking layer is wound outside the water absorption component. The water absorption assembly comprises a water absorption layer, honeycomb holes and water absorption resin are arranged in the water absorption layer, permeation holes and improved protection wings are arranged on the side face of the water absorption layer, a large amount of water can be absorbed through the water absorption resin, the flow blocking layer can be extruded, the inner wall of the flow blocking layer is automatically turned over and stands under stress extrusion, and a 3D protection surrounding edge is formed. The side leakage caused by local menstrual blood accumulation is effectively avoided, the water absorption layer is arranged to be in a grid shape, blood can pass through the water absorption layer conveniently, the water absorption resin is flatly laid in the water absorption layer through the honeycomb holes, the water absorption effect is stable, and a certain side leakage prevention effect can be achieved while the three-piece type overlying edge folding technology and the automatic turning and standing design of the flow blocking layer are thinned.
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Description

Technical Field

[0001] This utility model relates to the field of hygiene products technology, specifically to 3D height-increasing, three-dimensional protective leak-proof wings. Background Technology

[0002] Winged sanitary napkins, also known as winged sanitary napkins or sanitary napkins with wings, are sanitary napkins with extra extensions on both sides, namely wings. These sanitary napkins can wrap around and securely attach to the outside of underwear, providing extra leak protection and helping to keep the sanitary napkin in place. Due to their unique design, winged sanitary napkins excel in providing better leak protection and stability, making them a preferred choice for many women during menstruation. With technological advancements, more and more different styles and functions of winged sanitary napkins have appeared on the market to meet the needs of different consumers. In the process of developing this utility model, the inventors discovered the following problems with the existing technology:

[0003] 1. The existing waterproof and absorbent layers on the surface of the protective wings are both planar structures. The planar design is simple and suitable for situations with light menstrual flow. However, in cases of heavy menstrual flow, leakage can easily occur if menstrual blood accumulates locally.

[0004] 2. To increase waterproofing, multi-layer designs are used. Traditional multi-layer processes for sanitary napkins result in a thicker overall product, which is not comfortable to use. The multi-layer design also slows down the absorption speed, resulting in a longer time for the surface to become wet. Utility Model Content

[0005] The purpose of this invention is to provide a 3D height-increasing, three-dimensional protective leak-proof wing to solve the problems mentioned in the background art, such as easy leakage due to local accumulation of menstrual blood, and the overall thickness of the product being relatively thick and slow in water absorption. To achieve the above objective, this invention provides the following technical solution: a 3D height-increasing, three-dimensional protective leak-proof wing, including a water-absorbing component, a spacer layer adhered to the back of the water-absorbing component, a waterproof layer adhered to the back of the spacer layer, side wings provided in the middle of both sides of the waterproof layer, and a flow-blocking layer wrapped around the outside of the water-absorbing component.

[0006] The water-absorbing component includes a water-absorbing layer, the interior of which is provided with honeycomb pores and water-absorbing resin, and the side of the water-absorbing layer is provided with permeation pores.

[0007] More preferably, the flow-blocking layer has three layers, and the outer wall of the flow-blocking layer and the spacer layer are fixed together by cotton thread.

[0008] More preferably, the flow-blocking layer is made of multiple layers of non-woven fabric, and the surface of the flow-blocking layer is designed as a curved structure, and the inner wall of the flow-blocking layer and the water-absorbing layer are in close contact with each other.

[0009] More preferably, the interior of the absorbent layer has multiple honeycomb pores, the absorbent resin is disposed within the honeycomb pores, and the outer surface of the absorbent layer is made into a mesh shape.

[0010] More preferably, the permeation holes are provided in a plurality of form, and the interior of the permeation holes is also filled with water-absorbing resin.

[0011] More preferably, the spacer layer is made of polyester fiber and the absorbent layer is made of long-staple cotton.

[0012] More preferably, the waterproof layer and the side wings are made of polyethylene film, the back of the waterproof layer is bonded with rectangular adhesive, and the back of the side wings is bonded with circular adhesive.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, the outer edge of the flow-blocking layer is sealed and fixed with cotton thread to prevent the flow-blocking layer from shifting. The water-absorbing resin can absorb a large amount of water and expand rapidly. After the water-absorbing resin inside the permeable pores and honeycomb pores expands, it will squeeze the flow-blocking layer. The inner wall of the flow-blocking layer will automatically flip up under the pressure, forming a 3D three-dimensional protective edge, which effectively avoids side leakage caused by local menstrual blood accumulation.

[0015] In this invention, the absorbent layer is designed in a grid pattern to facilitate blood flow. The honeycomb pores limit and fix the absorbent resin inside, allowing the absorbent resin to spread evenly inside the absorbent layer and preventing it from being squeezed into clumps. This results in a more stable absorbent effect. The overall thickness of the flow-blocking layer is the same as that of the absorbent component when it is not absorbing water. After absorbing water, it stands up, reducing its thickness while also providing a certain degree of anti-leakage effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the water absorption component and flow-blocking layer of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the water-absorbing component of this utility model;

[0020] Figure 5 This is a schematic diagram of the back structure of this utility model.

[0021] In the diagram: 1. Water-absorbing component; 101. Water-absorbing layer; 102. Honeycomb pores; 103. Water-absorbing resin; 104. Permeable pores; 2. Spacer layer; 3. Waterproof layer; 4. Side wings; 5. Flow-blocking layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 This utility model provides a technical solution: a 3D height-increasing, three-dimensional protective leak-proof wing, including a water-absorbing component 1, a spacer layer 2 bonded to the back of the water-absorbing component 1, a waterproof layer 3 bonded to the back of the spacer layer 2, side wings 4 provided in the middle of both sides of the waterproof layer 3, and a flow-blocking layer 5 wrapped around the outside of the water-absorbing component 1.

[0024] The water-absorbing component 1 includes a water-absorbing layer 101, the interior of which is provided with honeycomb pores 102 and water-absorbing resin 103, and the side of the water-absorbing layer 101 is provided with permeation pores 104.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, there are three flow-blocking layers 5, and the outer wall of the flow-blocking layer 5 and the spacer layer 2 are fixed together by cotton thread. It should be noted that the three flow-blocking layers 5 are wrapped around the outside of the water-absorbing component 1 in sequence to prevent side leakage. The outer edge of the flow-blocking layer 5 is sealed and fixed by cotton thread to prevent the flow-blocking layer 5 from shifting.

[0026] In this embodiment, as Figure 3 As shown, the flow-blocking layer 5 is made of multiple layers of non-woven fabric, and the surface of the flow-blocking layer 5 is designed with a curved structure. The inner wall of the flow-blocking layer 5 and the water-absorbing layer 101 are closely attached to each other. It should be noted that the non-woven fabric has breathable and waterproof effects. The flow-blocking layer 5 after the multiple layers of non-woven fabric are stacked has a certain elasticity and support effect. The surface of the flow-blocking layer 5 is designed with a curved structure. The overall thickness of the flow-blocking layer 5 is the same as the thickness of the water-absorbing component 1 when it is not absorbing water. After absorbing water, it stands up, which can reduce the thickness and also play a certain role in preventing side leakage.

[0027] In this embodiment, as Figure 3 and Figure 4 As shown, the absorbent layer 101 has multiple honeycomb holes 102 inside, and the absorbent resin 103 is disposed inside the honeycomb holes 102. The outer surface of the absorbent layer 101 is made into a mesh shape. It should be noted that the mesh shape facilitates the passage of blood. The honeycomb holes 102 limit and fix the absorbent resin 103 inside, so that the absorbent resin 103 is spread flat inside the absorbent layer 101, preventing them from being squeezed together and clumping together, resulting in a better and more stable water absorption effect.

[0028] In this embodiment, as Figure 4 As shown, there are several permeation holes 104, and the interior of the permeation holes 104 is also filled with water-absorbing resin 103. It should be noted that the water-absorbing resin 103 can absorb a large amount of water and expand rapidly. After the water-absorbing resin 103 inside the permeation holes 104 and the honeycomb holes 102 expands, it will squeeze the flow barrier layer 5. The inner wall of the flow barrier layer 5 will automatically flip up under the pressure, forming a 3D three-dimensional protective edge, which effectively avoids side leakage caused by local menstrual blood accumulation.

[0029] In this embodiment, as Figure 1 As shown, the spacer layer 2 is made of polyester fiber, and the absorbent layer 101 is made of long-staple cotton. It should be noted that polyester fiber has a lower cost, while long-staple cotton has a higher cost. Long-staple cotton is in direct contact with the skin and causes less skin irritation. The two are used alternately to save costs.

[0030] In this embodiment, as Figure 5 As shown, the waterproof layer 3 and the side wings 4 are made of polyethylene film. The back of the waterproof layer 3 is bonded with rectangular adhesive, and the back of the side wings 4 is bonded with circular adhesive. It should be noted that the polyethylene film is relatively thin overall, has good waterproof performance, and prevents menstrual blood from penetrating into clothing. The side wings 4 can be folded inward along the protective layer and fixed to the underwear with rectangular and circular adhesives. The three-piece overlapping and folding technology prevents displacement.

[0031] The usage and advantages of this utility model: This 3D height-enhancing, three-dimensional, leak-proof protective wing operates as follows:

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the protective layer is first attached to the surface of the underwear, and the side wings 4 on both sides are folded back and fixed. When menstrual blood is encountered, the menstrual blood penetrates the absorbent layer 101, and the absorbent resin 103 in the honeycomb pores 102 and permeation pores 104 absorbs water and expands, increasing in volume and extending to both sides. It squeezes the absorbent resin 103 in the permeation pores 104 to push the flow barrier layer 5 outward. The flow barrier layer 5 is fixed on the outside and automatically flips up under internal pressure to form a 3D three-dimensional protective edge to prevent side leakage.

[0033] 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 in the specification are merely preferred examples and are not intended to limit the 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 the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. 3D height-enhancing, three-dimensional protective leak-proof wings, including a water-absorbing component (1), characterized in that: The back of the water-absorbing component (1) is bonded with a spacer layer (2), the back of the spacer layer (2) is bonded with a waterproof layer (3), the waterproof layer (3) has side wings (4) in the middle of both sides, and the outside of the water-absorbing component (1) is wrapped with a flow-blocking layer (5). The water-absorbing component (1) includes a water-absorbing layer (101), the interior of which is provided with honeycomb pores (102) and water-absorbing resin (103), and the side of the water-absorbing layer (101) is provided with permeation pores (104).

2. The 3D height-enhancing, three-dimensional protective, leak-proof wing according to claim 1, characterized in that: The flow-blocking layer (5) has three layers, and the outer wall of the flow-blocking layer (5) and the spacer layer (2) are fixed together by cotton thread.

3. The 3D height-enhancing, three-dimensional protective, leak-proof wing according to claim 1, characterized in that: The flow-blocking layer (5) is made of multiple layers of non-woven fabric, and the surface of the flow-blocking layer (5) is set as a curved structure, and the inner wall of the flow-blocking layer (5) and the water-absorbing layer (101) are attached to each other.

4. The 3D height-enhancing, three-dimensional protective, leak-proof wing according to claim 1, characterized in that: The absorbent layer (101) has multiple honeycomb holes (102) inside, the absorbent resin (103) is disposed in the honeycomb holes (102), and the outer surface of the absorbent layer (101) is made into a grid.

5. The 3D height-enhancing, three-dimensional protective, leak-proof wing according to claim 1, characterized in that: The permeation holes (104) are provided in a plurality of manner, and the interior of the permeation holes (104) is also filled with water-absorbing resin (103).

6. The 3D height-enhancing, three-dimensional protective, leak-proof wing according to claim 1, characterized in that: The spacer layer (2) is made of polyester fiber, and the absorbent layer (101) is made of long-staple cotton.

7. The 3D height-enhancing, three-dimensional protective, leak-proof wing according to claim 1, characterized in that: The waterproof layer (3) and the side wings (4) are made of polyethylene film. A rectangular adhesive is bonded to the back of the waterproof layer (3), and a circular adhesive is bonded to the back of the side wings (4).