Sanitary napkin with memory foam

Abstract

This utility model discloses a sanitary napkin with memory foam, including a surface layer and a bottom film. The surface layer is located above the bottom film, and a receiving space is formed between the surface layer and the bottom film. A core is disposed within the receiving space. The core includes memory foam and an absorbent core. The absorbent core is located on top of the memory foam. An auxiliary liquid-containing structure is provided on the memory foam to receive menstrual fluid that leaks from the absorbent core. This utility model uses a core composed of memory foam and an absorbent core. The absorbent core is used to absorb menstrual fluid and keep the surface dry. The memory foam rebounds under pressure to maintain the stability of the sanitary napkin's shape. The breathable holes on the memory foam can be squeezed to shrink or expand, thereby enhancing the rebound effect. It has an open structure that can absorb impact force and provide comfortable support. It is soft and has a slow rebound characteristic, which can prevent the body from deforming due to prolonged sitting or exercise, bringing women a more comfortable experience.

Description

Technical Field

[0001] This utility model relates to the field of sanitary napkin technology, specifically a sanitary napkin with memory foam. Background Technology

[0002] Disposable sanitary napkins are mainly made of non-woven fabric, fluff pulp, PE bottom film, and super absorbent polymer resin. Sanitary napkins are characterized by being thin, soft, breathable, and highly absorbent. As a daily necessity for women during menstruation, disposable sanitary napkins generally refer to underwear worn close to the skin. The structure from the skin contact surface to the underwear consists of a top layer, an absorbent core, and a bottom film, with small adhesive wings on both sides to fix it to the underwear. Because existing products are worn in close contact with the user's skin, prolonged sitting or exercise can cause the product to lose its softness, and the absorbent core can become sticky and deformed, leading to problems such as side leakage. Therefore, there is an urgent need to design a sanitary napkin with memory foam to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sanitary napkin with memory foam, which aims to solve the problem of side leakage caused by the easy deformation of existing sanitary napkins, resulting in poor comfort.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sanitary napkin with memory foam includes a top layer and a bottom film. The top layer is located above the bottom film, and a receiving space is formed between the top layer and the bottom film. A core is disposed within the receiving space. The core includes memory foam and an absorbent core. The absorbent core is located on top of the memory foam. An auxiliary liquid-containing structure is disposed on the memory foam for accommodating menstrual fluid that leaks from the absorbent core.

[0006] As a preferred embodiment of this utility model, the surface layer and the bottom film are the same size and specifications, and the surface layer and the bottom film are connected and fixed around the perimeter by perimeter sealing pressure points. The core is smaller than the surface layer and the bottom film. The absorbent body is fixed to the memory foam by point bonding. The memory foam is fixed to the bottom film by adhesive. The top ring of the absorbent body is fixed to the surface layer by adhesive.

[0007] As a preferred embodiment of this utility model, the top of the memory foam is provided with a receiving cavity, the absorbent body is placed in the receiving cavity, the width of the receiving cavity and the absorbent body gradually decreases from top to bottom, and the shape of the absorbent body is adapted to the receiving cavity.

[0008] As a preferred embodiment of this utility model, the depth of the accommodating cavity is greater than the thickness of the absorbent body, so that the top edge of the memory foam protrudes from the absorbent body to form a liquid-repellent rim.

[0009] As a preferred embodiment of this utility model, the auxiliary liquid-containing structure includes a plurality of vent holes formed inside it along the width and length directions of the memory foam. The vent holes are arranged in a crisscross pattern and are interconnected with each other.

[0010] As a preferred embodiment of the present invention, the auxiliary liquid-containing structure further includes a liquid-containing cavity opened at the bottom of the memory foam interior, and a liquid-permeable hole with a through-vent is opened between the accommodating cavity and the liquid-containing cavity.

[0011] As a preferred embodiment of this utility model, a plurality of support blocks are fixedly connected at equal intervals along the length direction inside the liquid-containing cavity, and a communication port is opened at the bottom end of the support block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a core composed of memory foam and an absorbent core. The absorbent core absorbs menstrual fluid and keeps the surface dry. The memory foam rebounds under pressure to maintain the stability of the sanitary napkin's shape. The vents on the memory foam allow it to be squeezed and expanded, enhancing the rebound effect. Its open structure absorbs impact and provides comfortable support. It is soft and has a slow rebound characteristic. Through the vents and liquid-retaining chambers, menstrual fluid leaking from the absorbent core flows into the vents and liquid-retaining chambers for storage. The memory foam shares the absorption capacity, improving the absorption effect and preventing leakage due to insufficient absorbency of the absorbent core. It also prevents deformation of the sanitary napkin caused by prolonged sitting or exercise, providing a more comfortable experience for women. Attached Figure Description

[0014] Figure 1 A top view diagram of a sanitary napkin with memory foam.

[0015] Figure 2 A schematic diagram of the cross-sectional structure of a sanitary napkin with memory foam.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of area A in the diagram.

[0017] In the diagram: 1. Surface layer; 2. Core; 3. Bottom film; 4. Memory foam; 401. Receptacle cavity; 402. Vent hole; 403. Liquid cavity; 404. Liquid passage hole; 405. Support block; 5. Absorbent. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Example: Please refer to Figures 1-3 This embodiment provides a sanitary napkin with memory foam, including a surface layer 1 and a bottom film 3. The surface layer 1 is located above the bottom film 3, and a receiving space is formed between the surface layer 1 and the bottom film 3. A core 2 is disposed within the receiving space. The core 2 includes memory foam 4 and an absorbent core 5. The absorbent core 5 is located on top of the memory foam 4. An auxiliary liquid-retaining structure is provided on the memory foam 4 to contain menstrual fluid leaked from the absorbent core 5. The surface layer 1 is used to contact the human body, mainly to absorb liquid and achieve dryness. The surface layer 1 can be made of natural pure cotton or soft cotton material, which has good skin-friendliness and breathability. It can reduce skin irritation, especially suitable for sensitive skin, or has a mesh structure surface made of polyethylene (PE) or polypropylene (PP), which absorbs quickly and keeps the surface dry. The absorbent body 5 is used to absorb menstrual fluid and keep the surface dry. The memory foam 4 helps maintain the stability of the sanitary napkin's shape after being compressed and rebounds. The bottom film 3 is the bottom layer to prevent menstrual blood leakage. The absorbency of the absorbent body 5 and the resilience of the memory foam 4 occur simultaneously, resulting in memory rebound while absorbing liquid. It has the characteristics of being soft and slow to rebound, which can prevent the body deformation caused by prolonged sitting or exercise.

[0020] In this embodiment, the surface layer 1 and the bottom film 3 are the same size and are connected and fixed around the perimeter by perimeter sealing pressure points. The core 2 is smaller than the surface layer 1 and the bottom film 3. The absorbent body 5 is fixed to the memory foam 4 by point bonding, the memory foam 4 is fixed to the bottom film 3 by adhesive bonding, and the top ring of the absorbent body 5 is fixed to the surface layer 1 by adhesive bonding, thereby improving the connection and fixation stability between the layers of the sanitary napkin.

[0021] In this embodiment, a cavity 401 is provided at the top of the memory foam 4, and the absorbent body 5 is placed inside the cavity 401. The width of the cavity 401 and the absorbent body 5 gradually decreases from top to bottom. The shape of the absorbent body 5 is adapted to the cavity 401. The cavity 401 is used to accommodate and connect the absorbent body 5, so that the absorbent body 5 is accurately positioned when connected to the memory foam 4. Through the shape design of the cavity 401 and the absorbent body 5, when the absorbent body 5 is connected and assembled with the memory foam 4, the end with the smaller cross-section of the absorbent body 5 enters the end with the larger cross-section of the cavity 401 first, improving the convenience of connection and assembly.

[0022] In this embodiment, the depth of the cavity 401 is greater than the thickness of the absorbent body 5, so that the top edge of the memory foam 4 protrudes from the absorbent body 5 to form a liquid-repellent edge. The liquid-repellent edge formed by the memory foam 4 protrudes from the absorbent body 5 and can also protrude from the surface of the surface layer 1, so that it can fit more closely to the user's skin and reduce the chance of leakage.

[0023] In this embodiment, the auxiliary liquid-containing structure includes a plurality of vent holes 402 formed inside the memory foam 4 along its width and length directions. The vent holes 402 are arranged in a crisscross pattern and are interconnected. The auxiliary liquid-containing structure also includes a liquid-containing cavity 403 formed at the bottom of the memory foam 4. A liquid-passing hole 404 is formed between the accommodating cavity 401 and the liquid-containing cavity 403, which passes through the vent holes 402. The vent holes 402 can be squeezed to shrink or expand each other to enhance the rebound effect. It has an open structure, can absorb impact force, provide comfortable support, and has the characteristics of being soft and having a slow rebound. Through the vent holes 402 and the liquid-containing cavity 403, the liquid that leaks from the absorbent body 5 flows into the vent holes 402 and the liquid-containing cavity 403 for storage through the liquid-passing hole 404. The memory foam 4 can share the absorption performance, improve the absorption effect of the liquid, and avoid the problem of liquid leakage caused by insufficient absorption performance of the absorbent body 5.

[0024] In this embodiment, a number of support blocks 405 are fixedly connected at equal intervals along the length direction inside the liquid-containing cavity 403. The bottom end of the support block 405 is provided with a communication port. The support block 405 is made of the same material as the memory foam 4 and is integrally formed. The support block 405 has the same width at the top and bottom and gradually decreases in width towards the middle. It is used to provide support for the liquid-containing cavity 403 and ensure the structural stability of the liquid-containing cavity 403.

[0025] Working principle: This sanitary napkin with memory foam consists of a core 2 composed of memory foam 4 and absorbent core 5. The absorbent core 5 is used to absorb menstrual fluid and keep the surface dry. The memory foam 4 rebounds under pressure to maintain the stability of the sanitary napkin's shape. The ventilation holes 402 on the memory foam 4 allow it to be squeezed to shrink or expand, thereby enhancing the rebound effect. It has an open structure that can absorb impact force and provide comfortable support. It is soft and has a slow rebound characteristic. Through the ventilation holes 402 and the liquid-containing cavity 403, menstrual fluid that leaks from the absorbent core 5 flows into the ventilation holes 402 and the liquid-containing cavity 403 for storage through the liquid passage hole 404. The memory foam 4 can share the absorption performance, improve the absorption effect of menstrual fluid, and avoid the problem of menstrual fluid leakage due to insufficient absorption performance of the absorbent core 5. It can also prevent the body from deforming due to prolonged sitting or exercise, bringing women a more comfortable experience.

[0026] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A sanitary napkin with memory foam, comprising a surface layer (1) and a bottom film (3), wherein the surface layer (1) is located above the bottom film (3), characterized in that: A receiving space is formed between the surface layer (1) and the bottom film (3), and a core (2) is provided in the receiving space. The core (2) includes memory foam (4) and absorbent (5). The absorbent (5) is located on top of the memory foam (4). An auxiliary liquid-containing structure is provided on the memory foam (4) to receive the liquid that leaks from the absorbent (5).

2. A sanitary napkin with memory foam according to claim 1, characterized in that: The surface layer (1) and the bottom film (3) are the same size. The surface layer (1) and the bottom film (3) are connected and fixed around the perimeter by perimeter sealing pressure points. The core (2) is smaller than the surface layer (1) and the bottom film (3). The absorbent (5) and the memory foam (4) are fixed by point bonding. The memory foam (4) and the bottom film (3) are fixed by adhesive. The top ring of the absorbent (5) is fixed to the surface layer (1) by adhesive.

3. A sanitary napkin with memory foam according to claim 1, characterized in that: The memory foam (4) has a cavity (401) at the top, and the absorbent (5) is placed in the cavity (401). The width of the cavity (401) and the absorbent (5) gradually decreases from top to bottom, and the shape of the absorbent (5) is adapted to the cavity (401).

4. A sanitary napkin with memory foam according to claim 3, characterized in that: The depth of the accommodating cavity (401) is greater than the thickness of the absorbent body (5), so that the top edge of the memory foam (4) protrudes from the absorbent body (5) to form a liquid-repellent rim.

5. A sanitary napkin with memory foam according to claim 3, characterized in that: The auxiliary liquid-containing structure includes a plurality of vent holes (402) opened inside the memory foam (4) along the width and length directions. The vent holes (402) are arranged in a crisscross pattern and are interconnected with each other.

6. A sanitary napkin with memory foam according to claim 5, characterized in that: The auxiliary liquid-containing structure also includes a liquid-containing cavity (403) located at the bottom of the memory foam (4), and a liquid-passing hole (404) with a through-vent hole (402) is provided between the accommodating cavity (401) and the liquid-containing cavity (403).

7. A sanitary napkin with memory foam according to claim 6, characterized in that: The liquid-containing cavity (403) is fixedly connected with several support blocks (405) at equal intervals along its length, and the bottom end of each support block (405) has a communication port.

Images