Ultrathin breathable protection pad

Abstract

The utility model discloses an ultra-thin breathable protection pad which aims at solving the problem that an existing personal hygiene product is limited in the aspects of absorptivity and breathability. Due to the design of the protection pad, air can freely circulate, meanwhile, liquid is effectively absorbed and locked, and more excellent use experience is provided. The protection pad comprises a breathable surface layer, an absorption layer, a distribution layer, a leakage-proof bottom film and an edge reinforcing structure. The breathable surface layer is provided with a plurality of micropores, so that air permeability is provided for the skin while liquid leakage is avoided. The absorption layer is made of sodium polyacrylate and can rapidly absorb liquid and lock the liquid. And the distribution layer is positioned below the absorption layer, so that the liquid can be uniformly dispersed. And the leakage-proof bottom film ensures that the liquid cannot leak out, and the air permeability is kept. The reinforcing structure is made of polypropylene fibers and located on the edge of the protection pad, and additional leakage-proof protection is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, and more specifically, to an ultra-thin breathable sanitary napkin. Background Art

[0002] Sanitary napkin products are widely used in the field of personal hygiene. In order to meet the needs of users for comfort and hygiene, various types of sanitary napkins have been developed in the prior art. Traditional sanitary napkins usually consist of multiple layers of materials, including a surface layer, an absorption layer, a distribution layer, and a leak-proof bottom film. However, there are some deficiencies in the existing sanitary napkin products during use.

[0003] Firstly, the air permeability of traditional sanitary napkins is limited. Wearing them for a long time is likely to cause moisture accumulation and temperature rise, bringing discomfort to users and even possibly causing skin problems. Secondly, the absorption capacity and liquid distribution efficiency of existing sanitary napkins need to be improved, which are insufficient to meet the requirements of users for absorbency and dryness in different situations. In addition, the thickness and softness of sanitary napkins are also the focus of user attention. Existing products often have difficulty in balancing the ultra-thin design with sufficient strength and absorbency.

[0004] Furthermore, environmental protection issues are also challenges faced in the modern sanitary napkin field. With the increasing awareness of sustainable development and environmental protection, how to develop more environmentally friendly and biodegradable sanitary napkin products has become the research focus in this field. Existing sanitary napkin products often do not fully consider environmental protection factors in material selection and manufacturing processes, resulting in difficulty in recycling and treating the products.

[0005] Therefore, based on the existing technology, there is an urgent need to develop a new type of ultra-thin breathable sanitary napkin that can not only provide better air permeability and absorption efficiency, but also take environmental protection and user wearing comfort into account in material selection and structural design. Summary of the Utility Model

[0006] In view of this, the utility model provides an ultra-thin breathable sanitary napkin.

[0007] To achieve the above object, the utility model provides the following technical solutions, including: a breathable surface layer with multiple micropores on the surface; an absorption layer bonded under the breathable surface layer for quickly absorbing and locking in liquid; a distribution layer bonded under the absorption layer for evenly dispersing the liquid onto the absorption layer; a leak-proof bottom film bonded under the distribution layer to prevent liquid leakage and allow air to circulate; and a reinforcing structure at the edge of the sanitary napkin to provide additional leak-proof protection.

[0008] Preferably, in the above ultra-thin breathable sanitary napkin, the micropore diameter of the breathable surface layer is 0.1 - 0.5 mm.

[0009] Preferably, in the above ultra-thin breathable sanitary napkin, the overall thickness of the sanitary napkin is not more than 5 millimeters.

[0010] Preferably, in the above-mentioned ultra-thin breathable sanitary napkin, the absorbent layer is made of sodium polyacrylate.

[0011] Preferably, in the above-mentioned ultra-thin breathable sanitary napkin, the reinforcing structure is made of polypropylene fiber and heat-sealed to the edge of the distribution layer.

[0012] As can be seen from the above technical solutions, compared with the prior art, the present utility model discloses an ultra-thin breathable sanitary napkin. By using a non-woven material with a microporous structure as the surface layer, the sanitary napkin of the present utility model significantly improves breathability, effectively reduces the problems of moisture accumulation and temperature rise, and provides a more comfortable and dry wearing experience for users. The absorbent layer design of the sanitary napkin optimizes the absorption and distribution of liquids, enabling the sanitary napkin to quickly absorb and evenly distribute liquids, keeping the surface dry, thereby improving the overall performance and user satisfaction of the sanitary napkin. Through innovative structural design and material selection, the sanitary napkin of the present utility model ensures sufficient strength and durability while maintaining ultra-thin, meeting the dual requirements of users for the thinness and strength of the sanitary napkin. The present utility model uses biodegradable non-woven materials such as polylactic acid (PLA) fibers, which not only reduces the impact on the environment but also meets the current market demand for sustainable products, enhancing the market competitiveness of the product. The reinforcing structure design at the edge of the sanitary napkin, such as the elastic edge and the adhesive reinforcement layer, enables the sanitary napkin to better fit the body contour, reduces the risk of leakage, and provides a more comfortable wearing feeling.

[0013] In summary, through technological innovation, the ultra-thin breathable sanitary napkin of the present utility model not only solves the problems of breathability, absorbency, and environmental protection in the prior art but also provides better wearing comfort and user experience, having significant market application prospects and commercial value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0015] Figure 1 The drawings are the schematic diagram of the main structure of the present utility model.

[0016] Figure 2 The drawings are the exploded schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to the attached Figure 1-2 , a super-thin breathable sanitary napkin disclosed by the present utility model.

[0019] The present utility model

[0020] The breathable surface layer 1 is made of a material with a microporous structure, and the diameter of the micropores is controlled between 0.1 and 0.5 millimeters. This design allows air to circulate freely while preventing liquid penetration. The material selection of the breathable surface layer 1 should ensure its softness to provide a comfortable touch. The absorbent layer 2 is directly bonded below the breathable surface layer 1 and uses sodium polyacrylate as the main material. Sodium polyacrylate has excellent water absorption performance and can quickly absorb and lock the liquid to prevent backflow. The thickness of the absorbent layer 2 is adjusted according to the required absorption capacity to ensure sufficient absorption while maintaining the thin design of the sanitary napkin. The distribution layer 3 is located below the absorbent layer 2, and its function is to evenly disperse the liquid onto the entire absorbent layer 2 to avoid local accumulation of the liquid. The material of the distribution layer 3 should have good liquid diffusion performance and is usually made of a porous structure or fiber material. The leak-proof bottom film is bonded below the distribution layer 3, and its main function is to prevent liquid from leaking onto the clothes. This bottom film is made of a breathable material that allows air to pass through but blocks liquid penetration. This design ensures the dryness and breathability of the sanitary napkin during use. The edge of the sanitary napkin is provided with a reinforcing structure 4, which is made of polypropylene fibers and fixed to the edge of the distribution layer 3 through heat-sealing technology. The design of the reinforcing structure 4 enhances the sealing and durability of the edge of the sanitary napkin and effectively prevents side leakage. The overall thickness of the sanitary napkin is controlled within 5 millimeters, ensuring the ultra-thin characteristics of the product, making users hardly feel its existence during use and improving the comfort.

[0021] In terms of material selection, the breathable surface layer 1 uses a high molecular breathable membrane, which has a microporous structure with the pore diameter evenly distributed between 0.1 and 0.5 millimeters, ensuring good breathability while effectively blocking liquid penetration. The absorbent layer 2 uses high water-absorbing sodium polyacrylate particles, which can quickly absorb the liquid and form a gel to prevent liquid backflow. The distribution layer 3 selects a fiber material with good diffusion performance, such as non-woven fabric, to ensure that the liquid can be evenly distributed onto the entire absorbent layer 2.

[0022] During the production process, first, the material of the breathable top layer 1 is stamped into the required shape through a precision mold, and then the absorbent layer 2 is fixed below it by hot pressing or adhesives. The sodium polyacrylate particles of the absorbent layer 2 need to be specially treated before production to improve their water absorption rate and capacity. Then, the material of the distribution layer 3 is covered on the absorbent layer 2 and fixed in the same way. Finally, the leak-proof bottom film and the reinforcement structure 4 are fixed below and at the edge of the distribution layer 3 through heat-sealing technology to ensure the structural stability and complete functionality of the entire pad.

[0023] The breathable top layer 1 is the uppermost layer of the pad and is in direct contact with the skin. In this utility model, the breathable top layer 1 is made of a special non-woven material, and its surface is specially treated to form multiple micropores. The design of these micropores not only ensures the free flow of air, reduces the sense of heat and dampness, but also effectively prevents the penetration of liquids. The precise diameter of the micropores is achieved through high-precision process control to ensure that each micropore can meet the requirements of functionality and comfort. The absorbent layer 2 is located below the breathable top layer 1 and is mainly composed of highly water-absorbent sodium polyacrylate particles. These SAP particles can quickly expand after contacting liquids and convert the liquids into a gel-like state, effectively locking in the moisture and preventing liquid backflow and side leakage. The design of the absorbent layer 2 takes into account the balance between thickness and absorption capacity to ensure the ultra-thin characteristics of the pad while having sufficient absorption capacity. The function of the distribution layer 3 is to optimize the distribution of liquids within the absorbent layer 2 and prevent liquids from concentrating at one point and causing overflow. This layer is made of a special fiber material with good liquid transmission ability, such as a cross-arranged fiber network, and this structure helps the liquids to quickly and evenly spread throughout the absorbent layer 2. The material and structural design of the distribution layer 3 ensure efficient dispersion even when a large amount of liquid rushes in quickly. The leak-proof bottom film is the bottom layer of the pad, and it needs to meet the dual requirements of waterproof and breathable. The bottom film uses a high-tech breathable film material, and the surface treatment process of this material ensures its high barrier performance against liquids. Although the material is impermeable to liquids, its unique micropore structure allows air to pass through, keeping the inside of the pad dry and ventilated. A special reinforcement structure 4 is added to the edge part of the pad, and this part is made of heat-sealed polypropylene fibers and surrounds the entire edge of the pad. The main purpose of this design is to enhance the sealing performance of the pad, especially when the user is more active, effectively preventing liquid leakage along the edge. The reinforcement structure 4 is tightly combined with the distribution layer 3 through a special heat-sealing technology, which not only ensures the leak-proof performance but also enhances the structural stability of the entire pad.

[0024] The ultra-thin breathable sanitary pad of the present utility model adopts a multi-layer composite structure design, and each layer has its unique functions and material characteristics. The breathable surface layer 1, the absorption layer 2, the distribution layer 3 and the leak-proof bottom film are tightly combined through precise lamination technology to ensure the synergy between the layers. This composite structure not only improves the overall performance, but also enables the sanitary pad to maintain its ultra-thin nature while coping with various usage conditions. To further improve the leak-proof performance, the edges of the sanitary pad adopt an innovative sealing technology. In addition to the reinforcement structure 4, the edge part also adopts a double-layer heat-sealing process, which adds an extra sealing layer on the basis of traditional heat-sealing, making the edge more solid and effectively preventing liquid from leaking from the edge. The absorption layer 2 is internally designed with a porous structure. These pores not only help the liquid to quickly penetrate into the absorption layer 2, but also increase the surface area of the absorption layer 2, improving the absorption efficiency. The design of the porous structure also takes into account the flow path of the liquid in the absorption layer 2 to ensure that the liquid can be evenly distributed and avoid local oversaturation. The fiber material of the distribution layer 3 is specially treated to form an oriented arrangement during the production process. This arrangement helps the liquid to quickly spread along a predetermined path, reducing the residence time of the liquid in the distribution layer 3, thereby improving the overall absorption speed and efficiency. The micropore size and distribution of the leak-proof bottom film are achieved through precisely controlled technology. The size and density of the micropores are accurately calculated to ensure maximum prevention of liquid penetration without affecting breathability. This micropore control technology is an important innovation point of the present utility model, which solves the contradiction between the breathability and waterproofness of traditional leak-proof bottom films.

[0025] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and reference can be made to the description in the method part for related parts.

[0026] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ultra-thin breathable pad, characterized in that: include: A breathable surface layer (1) is provided with a plurality of micropores on its surface. An absorbent layer (2) is bonded below the breathable surface layer (1) for quickly absorbing and locking liquid. A distribution layer (3) is bonded below the absorbent layer (2) for evenly distributing liquid on the absorbent layer (2). A leakproof bottom film is bonded below the distribution layer (3) to prevent liquid leakage while allowing air circulation. The edge of the pad has a reinforcement structure (4) for providing additional leakproof protection.

2. The ultra-thin breathable pad according to claim 1, characterized in that: The diameter of the micropores of the breathable surface layer (1) is 0.1-0.5 mm.

3. The ultra-thin breathable pad according to claim 1, characterized in that: The overall thickness of the pad is no more than 5 mm.

4. The ultra-thin breathable pad according to claim 1, characterized in that: The absorption layer (2) is made of sodium polyacrylate.

5. The ultra-thin breathable pad according to claim 1, characterized in that: The reinforcement structure (4) is made of polypropylene fibers and is heat-sealed to the edge of the distribution layer (3).

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