Antibacterial and sweat-absorbent underwear fabric
By designing a skin-friendly layer, a composite layer, and abrasion-resistant layer, and combining bamboo fiber and bamboo quinone particles, the problem of insufficient antibacterial and sweat-wicking properties in underwear fabrics is solved, achieving highly efficient sweat-wicking, antibacterial, and comfortable wearing effects.
Patent Information
- Application Number
- CN202522557197.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-12-02
AI Technical Summary
Current thermal underwear fabrics do not pay enough attention to antibacterial and sweat-wicking properties in their functional design, which leads to sweat accumulation, promotes bacterial growth, and causes odor and skin discomfort.
It adopts a structure design of skin-friendly layer, composite layer and wear-resistant layer. The skin-friendly layer is woven from cotton fiber, the composite layer includes breathable layer and antibacterial layer. The antibacterial layer is embedded with antibacterial particles, and the breathable layer is knitted in one piece. Combined with the natural antibacterial properties of bamboo fiber and bamboo quinone particles, it achieves efficient sweat absorption and antibacterial effect.
It achieves a synergistic effect of breathability, sweat absorption, and antibacterial function, improving wearing comfort and hygiene safety, making it suitable for long-term wear on sensitive skin and avoiding irritation from chemical additives.
Smart Images

Figure CN223821227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwear fabric technology, specifically to an antibacterial and sweat-absorbing underwear fabric. Background Technology
[0002] Thermal underwear, as a basic close-fitting garment in low-temperature environments, has the core function of locking in warmth and preventing cold. At the same time, it must meet the needs of being comfortable, close-fitting, and compatible with various outer garments, and has become an indispensable category in daily wear.
[0003] However, existing thermal underwear fabrics do not adequately consider antibacterial and sweat-wicking properties in their functional design. During actual wear, sweat secreted by the skin is easily absorbed by the fabric, causing it to accumulate between the fabric and the skin for extended periods. This not only affects the dryness of the garment but also provides a warm and humid environment for the growth of bacteria, mold, and other microorganisms, leading to unpleasant odors and potentially causing skin itching, allergies, and other discomfort. These problems are particularly pronounced after physical activity or during prolonged wear.
[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an antibacterial and sweat-wicking underwear fabric. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an antibacterial and sweat-absorbing underwear fabric to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, a specific embodiment of this utility model provides an antibacterial and sweat-wicking underwear fabric, comprising a skin-friendly layer, a composite layer, and a wear-resistant layer connected in sequence. The skin-friendly layer is woven from cotton fibers. The composite layer includes a pair of breathable layers and a bactericidal layer. The bactericidal layer is located between the breathable layers and has a mesh structure. An accommodating cavity is formed between the pair of breathable layers and the mesh, and antibacterial particles are disposed within the accommodating cavity.
[0007] In one or more embodiments of this utility model, the antibacterial particles are bamboo quinone particles.
[0008] In one or more embodiments of this utility model, the sterilization layer is composed of interwoven bamboo fibers.
[0009] In one or more embodiments of this utility model, a pair of breathable layers are integrally knitted onto the opposite layers of the sterilization layer, and the knitted stitches and mesh structure are staggered.
[0010] In one or more embodiments of this utility model, a flannel layer is provided on the side of the skin-friendly layer that contacts the skin, and the flannel layer has a plurality of fibers.
[0011] In one or more embodiments of this utility model, the fluff has a cavity, the fluff has a plurality of micropores, and the fluff is filled with modal blended fibers.
[0012] In one or more embodiments of this utility model, the modal blended fiber penetrates the denier layer, the skin-friendly layer, and the composite layer, and the end of the modal blended fiber away from the denier layer extends into the receiving cavity.
[0013] In one or more embodiments of this utility model, one end of the modal blended fiber located within the receiving cavity is wound around the antibacterial particles.
[0014] In one or more embodiments of this utility model, the wear-resistant layer is woven from polyester fibers and acrylic fibers, and the wear-resistant layer has a diagonal texture.
[0015] In one or more embodiments of this utility model, the sum of the thicknesses of the skin-friendly layer, the composite layer, and the wear-resistant layer is 2-3 mm.
[0016] Compared with existing technologies, the antibacterial and sweat-absorbing underwear fabric of the present invention not only has excellent breathability, but also achieves efficient sweat absorption and long-lasting antibacterial function, significantly improving wearing comfort and hygiene safety level, and accurately meeting people's core functional needs for underwear fabrics to be antibacterial and sweat-absorbing. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the structure of an antibacterial and sweat-wicking underwear fabric according to one embodiment of the present invention. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of an antibacterial and sweat-wicking underwear fabric according to one embodiment of the present invention. Figure 2 ;
[0020] Figure 3 This is a schematic diagram of the composite layer of an antibacterial and sweat-absorbing underwear fabric in one embodiment of the present invention.
[0021] Figure 4 This is a schematic diagram of the fiber layer structure of an antibacterial and sweat-absorbing underwear fabric in one embodiment of the present invention;
[0022] Figure 5This is a schematic diagram of the structure of an antibacterial and sweat-wicking underwear fabric according to one embodiment of the present invention. Figure 3 ;
[0023] Figure 6 This is a cross-sectional view of the pile of an antibacterial and sweat-absorbing underwear fabric according to one embodiment of the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Skin-friendly layer; 11. Soft fleece layer; 111. Fleece; 112. Micropores; 113. Modal blended fiber; 2. Composite layer; 21. Breathable layer; 22. Antibacterial layer; 3. Abrasion-resistant layer. Detailed Implementation
[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0027] Example 1
[0028] like Figures 1 to 4 As shown, an antibacterial and sweat-wicking underwear fabric according to one embodiment of this utility model includes a skin-friendly layer 1, a composite layer 2, and an abrasion-resistant layer 3 connected in sequence. The skin-friendly layer 1 is directly in contact with human skin and is woven from cotton fibers. Cotton fibers have natural moisture-wicking properties, which can quickly absorb sweat from the skin surface, and are soft and non-irritating to the touch, making them suitable for people with sensitive skin. Their inherent odor-resistant properties effectively prevent unpleasant smells after wearing, making them especially suitable for use in situations involving sweating during exercise.
[0029] The abrasion-resistant layer 3 is woven from a blend of polyester and acrylic fibers. This combination significantly improves the fabric's abrasion resistance and reduces friction wear during daily wear. The fabric surface features a diagonal texture, which enhances structural stability, further optimizes abrasion resistance, and makes the fabric more crisp and less prone to wrinkling and deformation.
[0030] The composite layer 2 consists of a pair of breathable layers 21 and a bactericidal layer 22. One breathable layer 21 is bonded to the skin-friendly layer 1 by ultrasonic hot pressing, and the bactericidal layer 22 is sandwiched between the two breathable layers 21. The bactericidal layer 22 has a mesh structure, and the two breathable layers 21 are knitted together on opposite sides of the bactericidal layer 22, forming a cavity between the three layers, which is filled with antibacterial particles.
[0031] The knitted threads and the mesh structure of the antibacterial layer 22 are staggered, allowing the antibacterial particles to directly contact the two breathable layers 21, thus achieving a bactericidal effect on the breathable layer 21. At the same time, through the heat-pressed connection between the breathable layer 21 and the skin-friendly layer 1, the antibacterial particles can simultaneously exert a bactericidal effect on the skin-friendly layer 1.
[0032] In this embodiment, bamboo quinone particles are used as the antibacterial granules. Bamboo quinone is a natural antibacterial component of bamboo, which can inhibit the growth of common bacteria such as Escherichia coli and Staphylococcus aureus, and reduce odor produced by sweat decomposition. No chemical antibacterial agents are added during the production process; the natural ingredients are gentle and skin-friendly, suitable for people with sensitive skin to wear close to the skin for extended periods. Furthermore, the antibacterial effect does not easily diminish, ensuring long-term use. In addition, the embedded design of the bamboo quinone particles does not damage the original softness of the fabric and can also help wick away moisture, keeping the skin dry and reducing stuffiness and stickiness.
[0033] Furthermore, the antibacterial layer 22 is woven from vertically interlaced bamboo fibers. Bamboo fibers naturally possess a porous structure, resulting in superior moisture absorption compared to cotton fibers. This allows them to create a capillary effect on the skin-friendly layer 1, channeling the sweat absorbed by the skin-friendly layer 1 to the antibacterial layer 22. Simultaneously, the layered structure of the bamboo fibers locks in the natural antibacterial components of the antibacterial particles, further reducing bacterial growth and odor, while retaining the soft feel of the bamboo fibers themselves, thus balancing antibacterial effectiveness with wearing comfort.
[0034] The total thickness of the skin-friendly layer 1, composite layer 2 and abrasion-resistant layer 3 is controlled within the range of 2-3mm. This ensures that the core functions of each layer, such as sweat absorption, antibacterial and abrasion resistance, are fully utilized, while maintaining the lightweight texture of the fabric and avoiding a bulky feeling when wearing it.
[0035] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, the two breathable layers 21 and the antibacterial layer 22 adopt a knitted integrated composite structure, which not only firmly ensures the breathability of the fabric, but also strengthens the synergistic effect of moisture absorption and sterilization, avoiding imbalance of a single function. Combining the natural moisture absorption characteristics of the cotton fiber skin-friendly layer 1, and the siphoning and diversion of the antibacterial layer 22 and the antibacterial ability of bamboo quinone particles, the functions of sweat absorption, diversion, sterilization and deodorization are achieved. Moreover, no chemical antibacterial agents are added throughout the process. The natural ingredients are gentle and non-irritating, which is suitable for people with sensitive skin to wear close to the skin for a long time, and significantly improves wearing comfort and hygiene safety, accurately meeting people's core usage needs for antibacterial and sweat absorption in underwear fabrics.
[0036] Example 2
[0037] As the core contact layer of the underwear fabric, the skin-friendly layer 1 is designed with the core requirements of close-fitting comfort and adaptability for various wearing scenarios. On the side that comes into direct contact with human skin, there is a fleece layer 11. The fleece layer 11 is made of a high-quality acrylic and viscose fiber blend substrate, and the surface is evenly distributed with multiple fine fibers 111 through a special napping process. The length of the fibers 111 is controlled at 0.3-0.5mm, with 50-80 fibers evenly distributed per square centimeter, which ensures a fluffy feel without causing the fibers 111 to stick together or pill due to excessive length.
[0038] These naturally curled, soft, and fluffy fibers significantly reduce the coefficient of friction between the fabric and the skin. Simultaneously, the dense fibers naturally form countless tiny gaps, collectively creating a breathable and warm air barrier. Since still air has extremely low thermal conductivity, it effectively prevents body heat from being conducted to the outside. Whether worn alone in spring and autumn to ward off the chill, or as an inner layer in winter to lock in body heat, it provides suitable warmth. Combined with the natural cotton fiber base of the skin-friendly layer 1, it forms a double skin-friendly barrier, keeping the skin dry and comfortable even after prolonged close-fitting wear.
[0039] Furthermore, to achieve a balance between warmth and moisture absorption, the fleece 111 features a hollow cavity structure design. This structure, without increasing the fabric thickness, enhances the fluffiness of the fleece 111 and traps more still air, further strengthening its warmth retention. Simultaneously, the hollow structure significantly reduces the overall weight of the fabric, making the underwear feel weightless and avoiding the bulky and heavy problems of traditional thermal fabrics. Multiple micropores 112 are evenly distributed along the length of the fleece 111 surface. These micropores 112 are fully connected to the internal cavity, forming a three-tiered breathable channel between the skin, the micropores 112, and the cavity. When the wearer's skin secretes a small amount of sweat, the sweat is quickly absorbed by the micropores 112 through capillary action and enters the fleece 111 cavity, preventing sweat from directly adhering to the skin surface and creating a sticky feeling.
[0040] Meanwhile, the cavity of the plush 111 is filled with a customized modal blend fiber 113, which consists of 70% modal, 20% cotton, and 10% spandex. Modal fiber has natural moisture-absorbing properties, capable of absorbing 15-20% of its own weight in moisture, quickly absorbing sweat from the cavity. Cotton fiber enhances the fiber's moisture absorption stability, preventing sweat backflow, while the addition of spandex gives the fiber excellent elasticity and resilience, allowing the plush 111 to maintain its fluffy shape even after repeated compression and wear, without collapsing or flattening. The modal blend fiber 113 is fixed to the inner wall of the plush 111 cavity through a dual method of heat-sealing and knitting wrapping, ensuring stable filling that it will not shift or clump even after multiple washes. Sweat entering the cavity is quickly drawn to the skin-friendly layer 1 by the capillary effect of the modal blended fiber 113. Then, through the moisture-absorbing and diffusion properties of the cotton fibers in the skin-friendly layer 1, the sweat is evenly distributed over a larger area, accelerating subsequent conduction and achieving a highly efficient cycle of moisture absorption and wicking. This completely breaks through the traditional pain point of thermal fabrics that are either warm but not breathable, or breathable but not warm, achieving a four-in-one function of warmth, moisture absorption, breathability, and perspiration wicking. Whether in the cold, dry winter or the humid, hot spring and autumn, it keeps the wearer dry and comfortable against the skin.
[0041] Furthermore, the modal blended fiber 113 adopts a longitudinally continuous design. The end furthest from the pile 111 passes through the fiber gaps of the fleece layer 11, the cotton fiber mesh of the skin-friendly layer 1, and finally extends directly into the receiving cavity of the composite layer 2. Inside the receiving cavity, the fiber end is spirally wound and fixed to the surface of the antibacterial particles, and then reinforced by low-temperature hot pressing to form a stable connection structure, which not only prevents fiber shedding but also ensures full contact with the antibacterial particles. The sweat adsorbed by the pile 111 is quickly conducted through the modal blended fiber 113, passing through the breathable layer 21 of the skin-friendly layer 1 and the composite layer 2, and finally gathers near the receiving cavity of the composite layer. Then, it diffuses and evaporates through the mesh structure of the breathable layer 21, realizing the rapid expulsion of sweat and completely solving the problem of sweat retention in multi-layer fabrics. At the same time, the natural antibacterial components of the antibacterial particles will penetrate into the skin-friendly layer 11 of the modal blended fiber 113 through the capillary action of the fiber, forming a comprehensive antibacterial protective net. This not only inhibits the growth of bacteria in the cavity, but also acts on the trace bacteria on the skin surface, reducing the odor produced by the decomposition of sweat from the source, so that the underwear can remain fresh even after long-term wear.
[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An antibacterial and sweat-wicking underwear fabric, characterized in that, It includes a skin-friendly layer (1), a composite layer (2) and a wear-resistant layer (3) connected in sequence. The skin-friendly layer (1) is made of cotton fiber weaving. The composite layer (2) includes a pair of breathable layers (21) and a bactericidal layer (22). The bactericidal layer (22) is located between the breathable layers (21) and has a mesh structure. An accommodating cavity is formed between the pair of breathable layers (21) and the mesh. Antibacterial particles are provided in the accommodating cavity.
2. The antibacterial and sweat-absorbing underwear fabric according to claim 1, characterized in that, The antibacterial particles are bamboo quinone particles.
3. The antibacterial and sweat-absorbing underwear fabric according to claim 1, characterized in that, The sterilization layer (22) is made of interwoven bamboo fibers.
4. The antibacterial and sweat-absorbing underwear fabric according to claim 1, characterized in that, A pair of breathable layers (21) are knitted together on opposite layers of the sterilization layer (22), with the knitted stitches and mesh structure staggered.
5. The antibacterial and sweat-absorbing underwear fabric according to claim 1, characterized in that, The skin-friendly layer (1) has a flannel layer (11) on the side that contacts the skin, and the flannel layer (11) has multiple villi (111).
6. The antibacterial and sweat-wicking underwear fabric according to claim 5, characterized in that, The fluff (111) has a cavity inside, and the fluff (111) has multiple micropores (112) on it. The fluff (111) is filled with modal blended fibers (113).
7. The antibacterial and sweat-absorbing underwear fabric according to claim 6, characterized in that, The modal blended fiber (113) penetrates the denier layer (11), the skin-friendly layer (1) and the composite layer (2), with one end of the modal blended fiber (113) away from the denier layer (11) extending into the receiving cavity.
8. The antibacterial and sweat-absorbing underwear fabric according to claim 7, characterized in that, The modal blended fiber (113) is wound around the antibacterial particles at one end within the receiving cavity.
9. The antibacterial and sweat-absorbing underwear fabric according to claim 1, characterized in that, The wear-resistant layer (3) is made of polyester fiber and acrylic fiber woven together, and the wear-resistant layer (3) has a diagonal texture.
10. The antibacterial and sweat-wicking underwear fabric according to claim 1, characterized in that, The sum of the thicknesses of the skin-friendly layer (1), the composite layer (2), and the wear-resistant layer (3) is 2-3 mm.