WO2021208737A1

WO2021208737A1 - Fabric and wearable device

Info

Publication number: WO2021208737A1
Application number: PCT/CN2021/084386
Authority: WO
Inventors: 朱美芳; 胡泽旭; 庄勤亮; 庞欢; 何奕松; 付康; 黄义宏
Original assignee: 华为技术有限公司; 东华大学
Priority date: 2020-04-17
Filing date: 2021-03-31
Publication date: 2021-10-21
Also published as: CN113604936A

Abstract

A fabric. The fabric comprises at least a surface layer and an inner layer bonded to a surface of the surface layer, wherein the surface layer is made of surface layer yarn fibers, and the inner layer is made of inner layer yarn fibers; the porosity of the surface layer is greater than the porosity of the inner layer, and the pore size of the surface layer is less than the pore size of the inner layer. The fabric can form an "inner-surface" gradient moisture absorption and quick-drying structure, so that when the fabric contacts the user's skin, the continuous and rapid removal of skin sweat can be implemented.

Description

Fabrics, wearable devices

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office with the application number 202010307693.4 and the application name "Fabrics, Wearable Devices" on April 17, 2020, and the entire contents of which are incorporated into this application by reference.

Technical field

This application relates to the technical field of fabrics, in particular to a fabric and a wearable device thereof.

Background technique

In recent years, with the rapid development of electronic fields at home and abroad, the output of electronic terminal equipment has skyrocketed, and the concept of smart wearable devices has emerged as the times require. As the first wearable device terminal that breaks through the market bottleneck and is widely used, smart watches have attracted the attention of domestic and foreign terminal companies. As a wearable device, the main performance of smart watches is mainly reflected in intelligence and wearability. Among them, intelligence determines the novelty of the product and affects the expansion of the market; wearability determines the comfort of the product and directly affects the cultivation of consumers' long-term wearing habits, which directly affects the market acceptance of smart watches. The core of the comfort of smart watches is reflected in the design of the strap.

On the market, there are four main types of watchband materials, fabric type, silicone type, leather type and metal type. Fabric-type straps have the advantages of lightweight, softness, variable structure, breathability and moisture permeability, and high cost performance, and are widely favored by consumers. At present, the design of fabric watchbands mainly focuses on the convenience of wearing, the intelligence and beauty of the watchband, and little attention is paid to the comfort of the woven watchband. The sweat produced during the wearing of the watch continues to adhere to the skin and the strap, and cannot be effectively removed, which affects the comfort of the wearer.

Summary of the invention

One of the objectives of the embodiments of the present application is to provide a fabric and a wearable device containing the fabric, aiming to solve the problem that the existing wearable device cannot achieve continuous extraction of skin sweat during the wearing process.

The technical solutions adopted in the embodiments of this application are:

In a first aspect, a fabric is provided, comprising at least a surface layer and an inner layer bonded to a surface of the surface layer, wherein the surface layer is made of surface layer yarn fibers, and the inner layer is made of inner layer yarn fibers ；

The porosity of the surface layer is greater than the porosity of the inner layer, and the pore size of the surface layer is smaller than the pore size of the inner layer.

The fabric at least includes a surface layer and an inner layer, and the inner layer contacts the skin during use. Wherein, the porosity of the surface layer is greater than the porosity of the inner layer, and at the same time, the pore size of the surface layer is smaller than the pore size of the inner layer. At this time, a capillary structure with a slightly larger pore size is formed between the yarn fibers in the inner layer of the fabric, and a capillary structure with a slightly smaller pore size and a larger amount is formed between the yarn fibers of the surface layer of the fabric. In this case, the surface layer and the inner layer produce a pressure difference due to the difference in specific surface area, that is, the fabric produces an additional pressure difference at the interface between the inner layer and the surface layer, forming a capillary phenomenon. The additional pressure difference guides the liquid absorbed by the inner layer of the fabric, such as sweat, to automatically flow to the surface layer, giving the fabric a gradient moisture conductivity. In summary, the fabric provided in the present application can form a "back-to-surface" gradient moisture absorption and quick-drying structure, so that when the fabric contacts the user's skin, it can achieve continuous and rapid extraction of skin sweat.

In the first embodiment, the fabric is composed of a surface layer and an inner layer bonded to a surface of the surface layer. At this time, the fabric has a double-layer structure between the front and back, and the additional pressure difference generated by the interface between the inner layer and the surface layer forms a double-layer "inner-surface" gradient moisture-absorbing and quick-drying structure. When the fabric contacts the user's skin, Realize the continuous and rapid extraction of skin sweat.

In the second embodiment, the fabric includes a surface layer, an inner layer arranged on one surface of the surface layer, and an intermediate layer arranged between the inner layer and the surface layer, and the intermediate layer is made of intermediate layer yarns. Made of thread fiber. At this time, the fabric forms a multilayer structure. Wherein, the porosity of the intermediate layer is between the porosity of the surface layer and the porosity of the inner layer; the pore size of the intermediate layer is between the pore size of the surface layer and the pore size of the inner layer Between sizes. That is, the porosity of the surface layer is greater than the porosity of the intermediate layer, and the porosity of the intermediate layer is greater than the porosity of the inner layer; at the same time, the pore size of the surface layer is smaller than the pore size of the intermediate layer, And the pore size of the intermediate layer is smaller than the pore size of the inner layer. In this case, the fabric generates an additional pressure difference at the interface of multiple adjacent layers, and the direction of the difference of the additional pressure difference is the same, thereby forming a multi-gradient moisture conduction structure with the same drainage direction (the inner layer absorbs The liquid such as sweat is drained to the middle layer, and then the liquid in the middle layer is drained to the surface layer), which is more conducive to the continuous and rapid extraction of the liquid absorbed by the inner layer, especially the sweat.

Optionally, the intermediate layer includes 1 to 3 yarn layers. At this time, the middle layer is formed by 1 to 3 layers of yarn texture, and the additional pressure difference generated by the interface between adjacent layers promotes the fabric to form a multi-gradient moisture transmission structure, which guides the liquid absorbed by the inner layer such as sweat automatically. Drain layer by layer through the middle layer to the surface layer to achieve continuous and rapid extraction of skin sweat. If the number of yarn layers of the intermediate layer is too large, the production difficulty will be significantly increased when the thickness is fixed (especially when the fabric thickness is within a relatively fixed range when used as a wearable device component).

Optionally, the intermediate layer includes at least 2 or 3 yarn layers. At this time, the fabric includes at least four layers; correspondingly, the fabric forms at least three interfaces. Along the direction from the surface layer to the inner layer, the porosity of the intermediate layer gradually decreases, and the pore size gradually increases. In this case, along the direction from the surface layer to the inner layer, the porosity of the fabric gradually decreases, while the pore size gradually increases, so that the difference in the additional pressure difference generated at the interface between adjacent layers The direction is the same, and a multi-gradient moisture conducting structure with the same drainage direction is obtained, and the moisture absorption and quick-drying performance of the fabric is improved through the gradient drainage.

On the basis of the above two implementations, in the first possible implementation of the first aspect, along the direction from the surface layer to the inner layer, the linear density of the yarn fibers in the fabric gradually increases . When the fabric is composed of a surface layer and an inner layer, the linear density of the yarn fibers of the surface layer is less than the linear density of the yarn fibers of the inner layer. At this time, the fabric forms a double-layer "inside-surface" gradient structure to realize the moisture absorption and quick-drying performance of the fabric. When the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer, the linear density of the yarn fibers of the surface layer is less than the linear density of the yarn fibers of the intermediate layer, and the linear density of the yarn fibers of the intermediate layer Less than the linear density of the inner yarn fiber. In this case, along the direction from the inner layer to the surface layer, the specific surface area of the fiber-made yarn layer gradually increases, thereby generating a differential capillary effect and improving the moisture conductivity of the inner layer. On this basis, the fabric adds at least one interface that can generate additional pressure, and under the action of the differential capillary effect, promotes the absorption of liquid, especially sweat, from the inner layer to the surface layer; at the same time, due to The closer to the surface layer, the larger the specific surface area of the yarn layer, which facilitates the extraction of liquid from the surface layer. Finally, the fabric achieves good moisture absorption and quick-drying performance. It should be understood that when the intermediate layer includes multiple yarn layers, the linear density of the fibers of each yarn layer may be the same, or may gradually increase along the direction from the surface layer to the inner layer.

Optionally, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D. In this case, the difference in porosity and pore size between the surface layer and the inner layer of the fabric makes the additional pressure difference generated by the double-layer or multi-layer "in-surface" gradient structure at the interface, which can absorb the liquid in the inner layer of the fabric. Drain to the surface layer, giving the fabric good moisture permeability.

In some embodiments, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D and less than or equal to 1.9D. If the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is too large, such as exceeding 2D, the linear density of the inner yarn fibers is relatively large, which is not conducive to the inner layer from the skin surface. Absorbs sweat. When the linear density of the surface yarn fiber is too small, it will affect the processability of the fiber yarn. Therefore, in order to ensure the good moisture absorption performance of the inner yarn fiber, the linear density of the surface yarn fiber is consistent with that of the inner yarn. The difference in the linear density of the layer yarn fibers does not exceed 2D.

Optionally, the linear density of the surface layer yarn fibers is 0.1D to 1.0D, and the linear density of the inner layer yarn fibers is 1.1D to 4.0D; and the linear density of the surface layer yarn fibers is equal to that of the The difference in the linear density of the inner yarn fibers is greater than or equal to 0.5D. At this time, the surface yarn formed by twisting the fibers of the surface yarn and the inner yarn formed by the twisting of the inner yarn fibers have a suitable porosity and pore size, so that the inner layer and the surface layer have an obvious interface at the interface. The additional pressure difference. Under the effect of the additional pressure difference, the liquid in the inner layer of the fabric flows into the surface of the fabric through the capillary channel, and evaporates and draws away from the surface, so that the fabric has good moisture absorption and quick-drying performance. Not only that, the linear density of the inner yarn fiber affects the moisture transfer efficiency of the inner layer. When the linear density of the inner layer yarn fibers increases to greater than 2.0D, the moisture transmission efficiency of the inner layer decreases; when the inner layer yarn fibers have a linear density greater than 4.0D, the inner layer's moisture transmission efficiency is too low , So as to affect the overall moisture permeability of the fabric. In addition, the use of fibers with appropriate linear density can endow the fabric with good processing performance and wear resistance. If the linear density of the surface yarn fibers and the inner yarn fibers is too low, especially when the surface yarn fiber linear density is less than 0.1D, the wear resistance of the fabric will decrease, which will significantly increase the fabric's production rate and time. Product rate; and it is easy to fluff during use, which affects the comfort and beauty of the fabric.

Optionally, the surface layer yarn fibers are fine-denier fibers, and the inner layer yarn fibers are low-denier fibers; or the surface layer yarn fibers are fine-denier fibers, and the inner layer yarn fibers include low-denier fibers. Mixed fiber of fiber and fine denier fiber. As a result, not only can the specific surface area of the yarn layer gradually increase from the inner layer to the surface layer, but also the wear resistance of the fabric can be improved by introducing low-denier fibers.

Optionally, the fabric includes an intermediate layer arranged between the inner layer and the surface layer. That is, the fabric includes a surface layer, an intermediate layer bonded to a surface of the surface layer, and a surface layer bonded to the surface of the intermediate layer away from the inner layer. The middle layer is made of middle layer yarn fibers. Wherein, the linear density of the surface yarn fibers is 0.1D to 1.0D, the linear density of the middle layer yarn fibers is 0.1D to 1.0D, and the linear density of the inner layer yarn fibers is 1.1D to 4.0D; And the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D. By adding an intermediate layer and taking advantage of the additional pressure difference generated at the interface between the intermediate layer and two adjacent layers, the moisture transfer efficiency of the fabric is improved.

Optionally, the fabric includes a surface layer, an intermediate layer bonded to a surface of the surface layer, and a surface layer bonded to the surface of the intermediate layer away from the inner layer. Wherein, the surface layer yarn fibers are fine-denier fibers, the middle layer yarn fibers are mixed fibers including low-denier fibers and fine-denier fibers, and the inner layer yarn fibers are low-denier fibers.

In the mixed fiber, the low-denier fiber accounts for 0.01% to 99.9% of the total number of fibers. Optionally, in the mixed fiber, the number ratio of the low-denier fiber to the fine-denier fiber is 1:1 to 3:1. The mixed yarn is made of mixed fiber of low-denier fiber and fine-denier fiber with a quantity ratio of 1:1 to 3:1. The hole in the mixed yarn is larger than that of fine-denier fiber, which is beneficial to the mixed yarn. The thread fiber material exhibits good moisture absorption. In addition, compared with the yarn layer obtained by using pure low-denier fiber texture, the embodiment of the present application uses a mixed yarn texture yarn made of low-denier fiber and fine-denier fiber with a quantity ratio of 1:1 to 3:1 The layer can improve the overall continuity and compactness of the fabric; at the same time, it can improve the wear resistance of the surface layer of the fabric.

In a second possible implementation manner of the first aspect, in the fabric, at least the surface layer yarn fibers contain special-shaped fibers. When the fibers constituting the surface yarn, that is, the surface yarn fibers, contain special-shaped fibers, on the one hand, the special-shaped fibers can provide more fine pore structures for the surface layer, increase the specific surface area of the surface layer, and accelerate the rapid liquid such as sweat on the surface layer. On the other hand, compared to round fibers, shaped fibers can form a narrow constricted topography structure, and the narrow constricted topography structure is conducive to humid air convection and has a higher microscopic pit specific surface area, thereby increasing the liquid such as The evaporation efficiency of sweat on the surface is beneficial to improve the efficiency of the extraction of liquid such as sweat from the surface.

In one embodiment, the fabric includes a surface layer and an inner layer, and the shaped fibers are only present in the surface layer. Optionally, the surface layer contains some special-shaped fibers. Optionally, the surface layer is made of special-shaped fibers. In this case, the effect of drawing the liquid away from the surface of the fabric is more excellent.

In one embodiment, the fabric includes a surface layer and an inner layer, and the shaped fibers exist in both the surface layer and the inner layer. Wherein, in the surface layer, the special-shaped fibers exist in two ways: the surface layer contains some special-shaped fibers; or, the surface layer is made of special-shaped fibers. In the inner layer, the special-shaped fibers also exist in two ways: the inner layer contains some special-shaped fibers; or, the inner layer is made of special-shaped fibers. When the inner layer contains special-shaped fibers, the special-shaped fibers will increase the number of capillary channels used for moisture transmission in the inner layer and improve the moisture transmission performance of the inner layer. Optionally, the inner layer is made of special-shaped fibers. In this case, the moisture conductivity of the inner layer of the fabric is more excellent. Optionally, both the surface layer and the inner layer are made of special-shaped fibers. In this case, the effect of liquid extraction from the surface layer and the moisture conductivity of the inner layer are better.

On the basis of the above two embodiments, the fabric may further include an intermediate layer arranged between the surface layer and the inner layer. Optionally, the special-shaped fibers are present in the intermediate layer. In the intermediate layer, the special-shaped fibers exist in two ways: the intermediate layer contains some special-shaped fibers; or, the intermediate layer is made of special-shaped fibers. Optionally, the middle layer yarn fibers are made of special-shaped fibers. Optionally, the fabric includes an intermediate layer arranged between the surface layer and the inner layer, and the yarn fibers of the intermediate layer, the surface layer, the intermediate layer and the inner layer are all made of special-shaped fibers.

Optionally, the profile degree of the profiled fibers is greater than or equal to 50. In this case, when the surface layer contains special-shaped fibers, under the condition that the linear density of the special-shaped fibers is fixed, a larger degree of special shape is conducive to the formation of a larger number of micro-pore structures, which is beneficial to increase the ratio of the surface layer. When the inner layer contains special-shaped fibers and the linear density of special-shaped fibers is fixed, a larger degree of special-shapedness is beneficial to increase the capillary channel and make the inner layer The liquid has more channels to enter the surface layer, which improves the moisture conductivity of the inner layer.

Optionally, the profile degree of the profiled fibers is greater than or equal to 75.

Optionally, the profile degree of the profiled fibers is greater than or equal to 90.

Optionally, the special-shaped fiber is selected from at least one kind of special-shaped fibers with a cross-section of Y-shaped, U-shaped, cross-shaped, pentalobal, and six-lobed. Optionally, the special-shaped fibers in the surface layer and the inner layer are the same or different. When the fabric contains an intermediate layer, the profiled fibers in the surface layer and the inner layer are the same or different; the profiled fibers of the surface layer and the middle layer are the same or different; the profiled fibers of the inner layer and the middle layer are the same or different.

In a third possible implementation manner of the first aspect, in the fabric, the contact angle of water on two adjacent layers of yarn fiber materials is the same; or along the direction from the surface layer to the inner layer, the water The contact angle on different yarn fiber materials gradually increases.

In one embodiment, the contact angle of water on two adjacent layers of yarn fiber material is the same. At this time, by adjusting the linear density of different layers of yarn fibers in the fabric and/or introducing foreign fibers, the porosity of the surface layer is greater than that of the inner layer, and the pore size of the surface layer is smaller than that of the inner layer. The aperture size.

In one embodiment, along the direction from the surface layer to the inner layer, the contact angle of water on different yarn fiber materials gradually increases. When the fabric is composed of a surface layer and an inner layer, the contact angle of water on the yarn fiber material of the surface layer is smaller than the contact angle of water on the yarn fiber material of the inner layer, which is beneficial to increase the additional pressure difference between the surface and the inner layer. , Improve the moisture absorption and quick-drying performance of the fabric. When the fabric includes a surface layer and an inner layer, and an intermediate layer arranged between the surface layer and the inner layer, the contact angle of water on the yarn fiber material of the surface layer is smaller than the contact angle of water on the yarn fiber material of the inner layer. The contact angle of water on the material of the intermediate layer and the contact angle of water on two adjacent layers of material depend on whether the material of the intermediate layer is the same as that of the adjacent two layers. When the yarn fiber material of the middle layer is the same as the surface yarn fiber material, the contact angle of water on the surface yarn fiber material and the contact angle of water on the middle layer yarn fiber material. When the yarn fiber material of the middle layer is the same as the fiber material of the inner layer, the contact angle of water on the inner layer of yarn fiber material and the contact angle of water on the middle layer of yarn fiber material. When the yarn fiber material of the middle layer is different from the surface yarn fiber material and the inner yarn fiber material, the contact angle of water on the surface yarn fiber material is smaller than the contact angle of water on the middle layer yarn fiber material And the contact angle of water on the yarn fiber material of the middle layer is smaller than the contact angle of water on the fiber material of the inner yarn. In this case, the fabric produces a differential capillary effect, giving the fabric good moisture absorption and quick-drying performance. It should be understood that when the intermediate layer includes multiple yarn layers, the yarn fiber materials of each yarn layer may be the same or different. When the materials of the multiple yarn layers of the intermediate layer are the same, the contact angle of water on the yarn fiber material of the intermediate layer does not change. When the materials of the multi-layer yarn layers of the middle layer are different, the contact angle of water on the yarn fiber material of the middle layer changes, and it satisfies that "along the direction from the surface layer to the inner layer, the water is in the yarn The contact angle on the fiber material gradually increases. It can be understood that the fabric can produce a difference in contact angle changes only when the yarn fiber material changes.

Optionally, mark the contact angle of water on the inner yarn fiber material as θ1, and the contact angle of water on the surface yarn fiber material as θ ₂ , and the values of _{θ 1} and θ ₂ _{satisfy: θ 2 is} less than It is equal to θ ₁ . In this case, the additional pressure difference between the surface layer and the inner layer interface can be increased, so that when the fabric is used in contact with the skin, the liquid absorbed by the inner layer of the fabric, such as sweat, can automatically flow from the inner layer to the surface layer, which improves the gradient conductivity of the fabric. Wet performance.

Optionally, the surface layer yarn fibers are selected from fibers whose θ _{2 is} less than or equal to 70°, and the inner layer yarn fibers are selected from fibers whose θ _{1 is} greater than or equal to 70° and less than or equal to 120°. In this case, the surface layer has good hydrophilicity, while the inner layer has poor hydrophilicity, which is beneficial for the surface layer to absorb the liquid in the inner layer and improve the moisture conductivity of the fabric; furthermore, with the help of the surface layer The characteristic of high specific surface area evaporates and draws liquid such as sweat from the surface layer. Optionally, the surface layer yarn fibers are selected from fibers whose θ _{2 is} less than or equal to 70°, and the inner layer yarn fibers are selected from fibers whose θ _{1 is} greater than or equal to 70° and less than or equal to 90°. At this time, not only the gradient effect formed by the surface layer and the inner layer is greater, the fabric has better unidirectional moisture conductivity, and the ability of liquid such as sweat to conduct from the skin to the inner layer of the fabric is maintained at a relatively high level.

Optionally, the surface layer yarn fibers are selected from polyamide fibers.

Optionally, the inner layer yarn fiber is selected from at least one of polypropylene fiber, polyester fiber, and surface hydrophobically modified polyamide fiber. Wherein, in the surface hydrophobically modified polyamide fiber, the method for surface hydrophobic modification includes surface fluorine treatment, surface plasma treatment and the like. The hydrophobic modification of the surface can increase the contact angle of water on the surface of the polyamide fiber, thereby achieving the purpose of enhancing the additional pressure difference between the surface and the inner interface and improving the gradient moisture conductivity of the fabric.

Combining the first possible implementation, the second possible implementation, and the third possible implementation of the first aspect, optionally, the surface yarn fibers and/or the inner yarn fibers are Antibacterial fiber compounded with antibacterial nanoparticles. That is, the surface yarn fibers are antibacterial fibers compounded with antibacterial nanoparticles; or the inner yarn fibers are antibacterial fibers compounded with antibacterial nanoparticles; or the surface yarn fibers and the inner yarn fibers All are antibacterial fibers compounded with antibacterial nanoparticles. Filling the antibacterial nano-particles in the fiber material to compound the antibacterial fiber can make the fiber of the woven fabric have certain antibacterial property, so that after the antibacterial fiber is woven into the fabric, the fabric is given continuous and stable antibacterial performance. On this basis, the fabric includes an intermediate layer arranged between the inner layer and the surface layer; the intermediate layer is made of intermediate layer yarn fibers, and the intermediate layer yarn fibers are compounded with antibacterial Nano-particle antibacterial fiber.

Optionally, the particle size of the antibacterial nanoparticles is less than or equal to 100 nm, which facilitates the uniform dispersion of the antibacterial nanoparticles in the fiber.

Optionally, taking the total weight of the antibacterial fibers as 100%, the weight percentage of the antibacterial nanoparticles is 0.1% to 5.0%. The content of the antibacterial nanoparticles in the fiber is within the above range, which can impart a certain antibacterial property to the fiber material, and further impart antibacterial property to the fabric when weaving the fabric. The weight percentage content of the antibacterial nano particles is not easy to be too high. If the content is higher, higher than 5.0%, the processing difficulty of the antibacterial fiber is increased, and the antibacterial fiber cannot even be obtained. In addition, too high antibacterial nanoparticles will reduce the essential properties of the fiber and destroy the performance of the fabric product.

Optionally, the antibacterial nanoparticles are selected from at least one of copper oxide, cuprous oxide, zinc oxide, and supported nanoparticles. Wherein, the supported nanoparticles include one or more of silver-loaded zirconium phosphate, copper-loaded zirconium phosphate, copper-loaded carbon black, and copper-loaded titanium dioxide.

Combining the first possible implementation, the second possible implementation, and the third possible implementation of the first aspect, optionally, the fabric is a double-layer fabric including a surface layer and an inner layer; The surface layer is formed by a surface layer yarn texture made of surface layer yarn fibers, and the surface layer yarns have a linear density of 50D to 1000D; the inner layer is formed by an inner layer yarn texture made of inner layer yarn fibers , The linear density of the inner layer yarn is 50D to 1000D.

Optionally, the fabric is a double-layer fabric including a surface layer and an inner layer; the surface layer yarns are made of antibacterial fibers with a special-shaped structure, and the surface layer yarns have a linear density of 50D to 1000D; the inner layer yarns It is made of antibacterial fiber with special-shaped structure, and the linear density of the inner yarn is 50D to 1000D. The fabric obtained in this case not only has excellent moisture absorption performance and quick-drying performance, but also has good abrasion resistance and stiffness, and is suitable as a support material for wearable devices.

Optionally, the fabric includes a surface layer, a middle layer, and an inner layer. The middle layer is formed by a middle layer yarn texture made of middle layer yarn fibers; wherein the surface layer yarn has a linear density of 50D to 1000D; the linear density of the inner layer yarn is 50D to 1000D; the linear density of the middle layer yarn is 50D to 1000D.

Optionally, the fabric includes a surface layer, an intermediate layer, and an inner layer; wherein the surface layer is formed by a surface layer yarn texture made of a special-shaped structure antibacterial fiber, and the surface layer yarn has a linear density of 50D to 1000D; The inner layer is formed by the texture of inner layer yarns made of special-shaped structure antibacterial fibers, and the linear density of the inner layer yarns is 50D to 1000D; the middle layer yarns are made of special-shaped structure antibacterial fibers. The thread texture is formed, and the thread density of the middle layer yarn is 50D to 1000D.

In combination with the first possible implementation, the second possible implementation, and the third possible implementation of the first aspect, optionally, the thickness of the inner layer is 0.2 mm to 1.0 mm.

Optionally, the thickness of the surface layer is 0.5 mm to 2.0 mm. At this time, the thickness of the surface layer is relatively thick, which is conducive to liquid conduction and extraction from the surface layer.

Optionally, the thickness of the fabric is 1.0mm to 2.5mm, so as to endow the fabric with good abrasion resistance and stiffness, so that the fabric has good abrasion resistance when used in wearable devices, and at the same time, it can It satisfies the support of the functional part (dial) in the wearable device (such as a watch) by the wearable part (such as a watch band).

Optionally, the thickness of the fabric is 1.0 mm to 2.5 mm, the thickness of the inner layer is 0.2 mm to 1.0 mm, and the thickness of the surface layer is 0.5 mm to 2.0 mm.

In a second aspect, a wearable device includes the fabric of the first aspect. In this case, when the part containing the fabric in the wearable device contacts the skin (the inner layer is in contact with the skin), the fabric can absorb the sweat removed from the skin and drain it through the inner layer to the surface layer. Realize moisture absorption and quick-drying performance, and finally provide the comfort of wearable devices.

In one embodiment, the wearable device is a watch, the watch includes a watch band, and the material of the watch band is the fabric. Using the fabric as a watchband material gives the watchband good moisture absorption and quick-drying performance, is beneficial to the discharge of skin sweat, and can improve the comfort when wearing the watch.

Description of the drawings

Figure 1 is a fabric structure and topography diagram provided by an embodiment of the present application;

2 is a structural comparison diagram of capillary channels formed by shaped fibers and circular fibers provided by an embodiment of the present application;

FIG. 3A is a schematic diagram of a narrow-necked topographic structure formed by a special-shaped fiber provided in an embodiment of the present application; FIG.

3B is a schematic diagram of a round fiber provided in the prior art forming a wide open topography structure;

4A is an optical microscope view of a cross-sectional surface layer of the fabric watchband provided in Example 1 of the present application;

4B is an optical microscope view of the inner cross-section of the fabric watchband provided in Example 1 of the present application.

Detailed ways

In order to make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the application will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

In the description of this application, it needs to be understood that the term "and/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and there exists at the same time A and B, the case of B alone exists. Among them, A and B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a). For example, "at least one of a, b, or c" or "at least one of a, b, and c" can mean: a, b, c, ab( Namely a and b), ac, bc, or abc, where a, b, and c can be single or multiple respectively.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

The terms "first" and "second" are only used for descriptive purposes, used to distinguish purposes such as substances, methods, interfaces, messages, requests, and terminals from each other, and cannot be understood as indicating or implying relative importance or implicitly indicating The number of technical features indicated.

The term "fine-denier fiber yarn" refers to a yarn made from fine-denier fibers, and the term "low-denier fiber yarn" refers to a yarn made from low-denier fibers. In the embodiments of the present application, low-denier fibers refer to yarn fibers with a linear density ranging from 1.1D to 4.0D; fine-denier fibers refer to yarn fibers with a linear density ranging from 0.1D to 1.0D. The term "plurality" means two or more than two, and "multi-layer" means two or more layers, unless otherwise specifically defined.

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. Some or all of the steps can be executed in parallel or one after the other, and the execution order of the processes should be based on their functions and The internal logic is determined, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The first aspect of the embodiments of the present application provides a fabric. The fabric at least includes a surface layer and an inner layer, where the inner layer is a material layer that is in contact with the skin, and is formed by a surface yarn texture made of surface yarn fibers; the surface layer does not directly contact the skin, or is far away from the skin relative to the inner layer , The inner yarn texture is formed by the inner yarn fiber.

Among them, the porosity of the surface layer is greater than the porosity of the inner layer, and at the same time, the pore size of the surface layer is smaller than the pore size of the inner layer. At this time, a capillary structure with a slightly larger pore size is formed between the yarn fibers in the inner layer of the fabric, and a capillary structure with a slightly smaller pore size and a larger amount is formed between the yarn fibers of the surface layer of the fabric. In this case, as shown in Figure 1, the pressure difference between the two adjacent layers is caused by the difference in specific surface area, forming a capillary phenomenon, that is, the fabric generates an additional pressure difference at the interface of the two adjacent layers. The additional pressure difference guides the liquid absorbed by the inner layer of the fabric, such as sweat, to automatically flow to the surface layer, giving the fabric a gradient moisture conductivity performance; at the same time, because the surface layer has a higher specific surface area, it helps liquid such as sweat to be drawn away from the surface layer. In summary, the fabric provided by the present application can form a "inside-outside" gradient moisture-absorbing and quick-drying structure, so that when the fabric contacts the user's skin, it can achieve continuous and rapid extraction of skin sweat. In the embodiment of this application, the additional pressure difference generated by the fabric at the interface between two adjacent layers is marked as Δp, which can be expressed by formula (1):

In formula (1), Δp represents the additional pressure difference, the unit is Pa; a represents the liquid-gas interfacial tension, the unit is N/m; θ ₁ represents the contact angle of the liquid on the inner material of the fabric (the inner yarn fiber), The unit is °; θ ₂ represents the contact angle of the liquid on the fabric surface material (surface yarn fiber), the unit is °; R ₁ represents the inner capillary equivalent diameter of the fabric, in m; R ₂ represents the fabric surface capillary equivalent diameter, The unit is m.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer bonded to one surface of the surface layer. Among them, the porosity of the surface layer is greater than the porosity of the inner layer, and at the same time, the pore size of the surface layer is smaller than the pore size of the inner layer. At this time, there are a large number of capillary channels running through the two layers of the fabric. The capillary structure of the surface layer is smaller and larger than the capillary structure of the inner layer; the capillary pores of the inner layer are larger. In this case, in conjunction with Figure 1, the additional pressure difference generated by the fabric at the interface between the front and the back causes the fabric to form a double-layer "back-to-surface" gradient moisture absorption and quick-drying structure, so that when the fabric touches the user's skin, the skin is realized Sweat is continuously and rapidly drawn away from the inner layer to the surface layer. In some embodiments, the surface layer and the inner layer are combined with each other by weft threads. The weft connects and buckles the warp threads of the surface layer and the inner layer, and finally realizes the combination of the surface layer and the inner layer.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and an inner layer bonded to the intermediate layer away from the surface of the surface layer, and the porosity and pore size of the intermediate layer are both between the surface layer and the inner layer. That is, the porosity of the surface layer is greater than that of the intermediate layer, and the porosity of the intermediate layer is greater than that of the inner layer; at the same time, the pore size of the surface layer is smaller than that of the intermediate layer, and the pore size of the intermediate layer is smaller than that of the inner layer. . In this case, the fabric generates additional pressure differences at multiple interfaces, and the direction of the additional pressure differences is the same, thereby forming a multi-gradient moisture-conducting structure with the same drainage direction (draining the liquid absorbed by the inner layer such as sweat to In the middle layer, the liquid in the middle layer is then drained to the surface layer), which is more conducive to the continuous and rapid extraction of the liquid absorbed by the inner layer, especially sweat. In some embodiments, the surface layer and the middle layer are combined with each other by weft threads, and the middle layer and the inner layer are combined with each other by weft threads. The weft thread connects and buckles the warp threads of the two adjacent layers, and finally realizes the combination of the surface layer, the middle layer and the inner layer to form the whole fabric.

In some embodiments, the intermediate layer includes 1 to 3 yarn layers. If the number of yarn layers in the middle layer is too large, it will significantly increase the difficulty of production when the thickness is fixed (especially when the fabric thickness is within a relatively fixed range when used as a wearable device component).

In some embodiments, the intermediate layer includes at least 2 or 3 yarn layers, and along the direction from the surface layer to the inner layer, the porosity of the intermediate layer gradually decreases and the pore size gradually increases. In this case, along the direction from the surface layer to the inner layer, the porosity of the fabric gradually decreases, so that the additional pressure difference generated by the adjacent layers at the interface is in the same direction, so that the multiple gradients of the same drainage direction are the same. Structure, improve the moisture absorption and quick-drying performance of the fabric.

In the embodiment of the present application, the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the inner layer is formed by the inner layer yarn texture, and the inner layer yarn is made of the inner layer yarn fibers. When the fabric is provided with an intermediate layer, the intermediate layer is formed by the texture of the intermediate layer yarn, and the intermediate layer yarn is made of the intermediate layer yarn fiber.

In some embodiments, the pore size of the surface layer is 1 μm to 4 μm, and the pore size of the inner layer is 2 μm to 4 μm, but it is not limited to this case.

On the basis of the foregoing embodiments, as a first implementation manner, in the embodiments of the present application, along the direction from the surface layer to the inner layer, the linear density of the yarn fibers in the fabric gradually increases. In this case, along the direction from the inner layer to the surface layer, the yarn layer made of fibers produces a differential capillary effect, which improves the moisture conductivity of the inner layer, and absorbs the inner layer under the action of the differential capillary effect. The liquid, especially sweat, is introduced layer by layer toward the surface; at the same time, because the closer to the surface, the larger the specific surface area of the yarn layer, which facilitates the extraction of liquid from the surface. Finally, the fabric achieves good moisture absorption and quick-drying performance.

In some embodiments, the fabric is a double-layer fabric composed of a surface layer and an inner layer bonded to one surface of the surface layer, and the surface layer and the inner layer are integrated with each other. Among them, the linear density of the surface yarn fibers is smaller than the linear density of the inner yarn fibers. In this case, the surface yarn composed of surface yarn fibers forms a large number of pore structures with small pores and more pores; at the same time, the inner yarn composed of inner yarn fibers has a larger pore size than that of the surface yarn. A pore structure with fewer pores than the surface yarn. At this time, in formula (1), R ₁ increases and R ₂ decreases,

Increase, Δp correspondingly increases, so that the differential capillary effect of the double-layer "inside-surface" gradient structure is more obvious, which is beneficial to improve the moisture conductivity of the inner layer and promote the flow of liquid from the inner layer to the surface layer; at the same time, it is beneficial for the liquid to flow from the inner layer to the surface layer. The surface layer is pulled away, and finally achieves good moisture absorption and quick-drying performance.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and an inner layer disposed on the surface of the intermediate layer away from the inner layer. Wherein, the linear density of the surface layer yarn fibers is less than the linear density of the middle layer yarn fibers, and the linear density of the middle layer yarn fibers is less than the linear density of the inner layer yarn fibers.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and an inner layer disposed on the intermediate layer away from the surface of the inner layer. The intermediate layer includes 1 to 3 yarn layers; In the direction, the linear density of the yarn fibers of the fabric gradually increases.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and an inner layer disposed on the intermediate layer away from the surface of the inner layer. The intermediate layer includes 2 or 3 layers of yarn; along the inner layer to the surface layer In the direction, the linear density of the yarn fibers of the fabric gradually increases. In some embodiments, the linear density of yarn fibers in each yarn layer of the middle layer is the same; in some embodiments, along the direction from the inner layer to the surface layer, the linear density of the yarn fibers of each yarn layer in the middle layer Gradually increase.

In the above embodiment, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D. In this case, the difference between _{R 2} and R _{1 increases,}

The increase is relatively obvious. The additional pressure difference generated by the "inside-surface" gradient structure at the interface increases, which promotes the absorption of liquid such as sweat from the inner layer to drain to the surface layer, thereby improving the moisture permeability of the fabric. In particular, when the fabric includes an intermediate layer, especially when the intermediate layer includes two or more layers of yarns, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D At this time, the difference in specific surface area of adjacent layers can change significantly, and an additional pressure difference is formed between adjacent layers to promote the flow of liquid from the direction of the inner layer to the direction of the surface layer, thereby forming a multi-gradient moisture conductivity with significant moisture conductivity and quick drying effect. structure.

In some embodiments, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D and less than or equal to 1.9D. If the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is too large, such as exceeding 2D, the linear density of the inner yarn fibers is relatively large, which is not conducive to the inner layer absorbing sweat from the skin surface. When the linear density of the surface yarn fiber is too small, it will affect the processability of the fiber yarn. Therefore, in order to ensure the good moisture absorption performance of the inner yarn fiber, the linear density of the surface yarn fiber and the inner yarn fiber The difference of the linear density does not exceed 2D.

In some embodiments, the fabric includes a surface layer and an inner layer, the surface yarn fibers have a linear density of 0.1D to 1.0D, the inner layer yarn fibers have a linear density of 1.1D to 4.0D, and the surface layer yarn fibers have a linear density The difference between the linear density of the inner yarn fiber and the inner yarn fiber is greater than or equal to 0.5D. At this time, the surface yarn formed by twisting the surface yarn fibers and the inner yarn formed by twisting the inner yarn fibers have appropriate porosity and pore size, so that the inner layer and the surface layer produce obvious at the interface. The additional pressure difference, under the action of the additional pressure difference, the liquid in the inner layer of the fabric flows into the surface of the fabric through the capillary channel, and evaporates and draws away from the surface. It should be understood that the linear density of the inner yarn fibers affects the moisture transfer efficiency of the inner layer. When the linear density of the inner yarn fiber increases to more than 2.0D, the moisture transmission efficiency of the inner layer decreases; when the linear density of the inner yarn fiber is greater than 4.0D, the moisture transmission efficiency of the inner layer is too low to affect The overall moisture permeability of the fabric. When the linear density of the surface yarn fibers and the inner yarn fibers is too small, the wear resistance of the fabric will be reduced, and it will be easy to fluff during weaving and use, which will affect the comfort and beauty of the fabric.

In some embodiments, the fabric includes a surface layer and an inner layer, the surface layer yarn fibers are fine-denier fibers, and the inner layer yarn fibers are low-denier fibers or mixed fibers including low-denier fibers and fine-denier fibers. It should be understood that, in the present application, when the yarn fiber is a fine-denier fiber or a low-denier fiber, the produced yarn corresponds to a fine-denier fiber yarn or a low-denier fiber yarn; when the yarn fiber is a low-denier fiber In the case of a mixed fiber of fiber and fine-denier fiber, the produced yarn is a mixed yarn made of fine-denier fiber and low-denier fiber. Therefore, when the surface yarn fibers are fine-denier fibers and the inner yarn fibers are low-denier fibers or mixed fibers including low-denier fibers and fine-denier fibers, the surface yarns are fine-denier fiber yarns and the inner-layer yarns are low-denier fibers. Low-denier fiber yarn or mixed yarn made of low-denier fiber and fine-denier fiber. When fine-denier fiber yarns are used for the surface layer yarns, its larger specific surface area and porosity are conducive to the rapid evaporation of liquids such as sweat input into the surface layer. As an embodiment, in the fabric, the surface yarn fibers are fine-denier fibers, and the inner yarn fibers are low-denier fibers; as another embodiment, in the fabric, the surface yarn fibers are fine-denier fibers; the inner yarn fibers are fine-denier fibers. The thread fibers are mixed fibers including low-denier fibers and fine-denier fibers. Correspondingly, the inner layer yarns are mixed yarns made of low-denier fibers and fine-denier fibers. At this time, the surface layer formed by the surface layer yarn texture and the inner layer formed by the inner layer yarn texture have a large number of pore structures; but because the surface yarn fiber has a smaller linear density, the pore structure formed by the surface layer has smaller pores. The pore structure formed in the inner layer is larger, and the pore structure size difference is appropriate, which can not only promote the additional pressure difference between the inner and surface double-layer interfaces, and enhance the output capacity of the inner liquid to the surface layer.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and a surface layer bonded to the surface of the intermediate layer away from the inner layer. The linear density of the surface yarn fibers is 0.1D to 1.0D, the linear density of the middle layer yarn fibers is 0.1D to 1.0D, and the linear density of the inner layer yarn fibers is 1.1D to 4.0D.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and a surface layer bonded to the surface of the intermediate layer away from the inner layer. Wherein, the surface layer yarn fibers are fine-denier fibers, the middle layer yarn fibers are mixed fibers including low-denier fibers and fine-denier fibers, and the inner layer yarn fibers are low-denier fibers.

In the above-mentioned embodiments of the present application, in the mixed fiber, the low-denier fiber accounts for 0.01% to 99.9% of the total number of fibers. In some embodiments, low-denier fibers account for 50% to 80% of the total number of fibers in the mixed fibers.

In some embodiments, in the mixed fiber, the ratio of the number of low-denier fibers to fine-denier fibers is greater than or equal to 1:1, so that the obtained fabric has a more obvious difference in pore size between two adjacent layers. It is beneficial for the adjacent layer interface to generate an additional pressure difference sufficient to drive the liquid in the inner layer to flow toward the surface layer.

In some embodiments, the number ratio of low-denier fiber to fine-denier fiber in the mixed fiber is 1:1 to 3:1. At this time, instead of using pure low-denier fiber as the inner yarn fiber or middle-layer yarn fiber, a mixed fiber of low-denier fiber and fine-denier fiber with a quantity ratio of 1:1 to 3:1 is used as the inner yarn Fiber or middle layer yarn fibers can form a multi-gradient moisture-conducting structure; on this basis, it can also prevent the continuity and compactness of the fabric from being affected due to the excessive difference in pore diameter between adjacent layers.

In some embodiments, the fabric includes a surface layer, an inner layer bonded to a surface of the surface layer; wherein the surface layer yarn fibers are fine-denier fibers, and the inner layer yarn fibers are mixed fibers including low-denier fibers and fine-denier fibers; and Among the fibers, the ratio of the number of low-denier fibers to fine-denier fibers is 1:1 to 3:1.

In some embodiments, the fabric includes a surface layer, an intermediate layer bonded to one surface of the surface layer, and a surface layer bonded to the surface of the intermediate layer away from the inner layer. Among them, the yarn fibers of the surface layer are fine-denier fibers, the yarn fibers of the middle layer are mixed fibers including low-denier fibers and fine-denier fibers, and the inner-layer yarn fibers are low-denier fibers; and among the mixed fibers, low-denier fibers and fine-denier fibers The number ratio of denier fibers is 1:1 to 3:1. The fabric thus formed has a significant difference in specific surface area between the surface layer and the middle layer, and between the middle layer and the inner layer, thereby forming a continuous gradient moisture transmission structure, which is conducive to the absorption of liquid during the use of the fabric and the rapid removal from the surface layer. Pull away.

Because the yarns formed by round fibers have good compactness and continuity, they are not conducive to the formation of a large number of microporous structures, thereby limiting the moisture conductivity and quick-drying properties of the fabric formed by the yarn texture. In view of this, as the second embodiment of the present application or the second embodiment based on the first embodiment, the fabric includes at least a surface layer and an inner layer; and in the fabric, at least the surface layer yarns contain special-shaped fibers. The principle of the special-shaped fiber improving the moisture conductivity of liquids, especially sweat, is shown in Figure 2: Six circular fibers form 6 capillary channels (a), and taking the cross-shaped fiber as an example, 5 cross fibers can form 8 Capillary channels (b); the more the blades of the shaped fibers, the more capillary channels formed. It can be seen that special-shaped fibers can increase the porosity of the yarn layer.

When the fibers that make up the surface layer yarn contain special-shaped fibers, on the one hand, the special-shaped fibers can provide more fine pore structures for the surface layer, increase the specific surface area of the surface layer, and accelerate the rapid extraction of liquids such as sweat from the surface layer; on the other hand, , As shown in Figure 3A and Figure 3B, compared to the wide open topographic structure of the round fiber (the angle α formed by the splicing of adjacent round fibers, as shown in Figure 3B), the shaped fiber can partially form a narrow Narrow morphology structure (the U-shaped constriction surrounded by the blades of adjacent shaped fibers is smaller, as shown in Figure 3A), and the narrow constriction morphology structure is conducive to humid air convection and has a higher microscopic pit specific surface area, thus Increasing the evaporation efficiency of liquids such as sweat on the surface is conducive to increasing the speed of liquid extraction from the surface.

In some embodiments, in the fabric, the shaped fibers are only present in the surface layer. In some embodiments, the surface layer contains some shaped fibers. In some embodiments, the surface layer is made of special-shaped fibers, so that the evaporation of the surface layer liquid can be better promoted to achieve quick-drying performance. On the basis of the above three embodiments, the fabric is a double-layer fabric including a surface layer and an inner layer; or the fabric includes a surface layer and an inner layer, and an intermediate layer arranged between the surface layer and the inner layer.

In some embodiments, in the fabric, the surface layer is made of surface yarn fibers; the inner layer is made of inner yarn fibers. Among them, the surface yarn fibers adopt special-shaped fibers with a linear density of 0.1D to 1.0D, and the inner yarn fibers have a linear density of 1.1D to 4.0D; and the linear density of the inner yarn fibers is greater than that of the surface yarn fibers. density. On the basis of this embodiment, the fabric is a double-layer fabric including a surface layer and an inner layer; or the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer.

In some embodiments, in the fabric, the surface layer is formed by the surface yarn texture made of fine-denier shaped fibers; the inner layer is formed by the inner layer yarn texture made of low-denier fibers. On the basis of this embodiment, the fabric is a double-layer fabric including a surface layer and an inner layer; or the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer.

In some embodiments, in the fabric, the surface layer is formed by a surface layer yarn texture made of fine-denier shaped fibers; the inner layer is formed by a inner layer yarn texture made of a mixed fiber including low-denier fibers and fine-denier fibers. On the basis of this embodiment, the fabric is a double-layer fabric including a surface layer and an inner layer; or the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier shaped fibers; the inner layer is formed by the inner layer yarn texture, the inner layer The layer yarn is a mixed yarn made of low-denier fibers and fine-denier fibers. Among them, in the mixed yarn, the number ratio of low-denier fibers to fine-denier fibers is 1:1 to 3:1.

In some embodiments, the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is a mixed yarn made of low-denier fiber and fine-denier fiber ; The inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier fiber. Among them, in the mixed yarn, the number ratio of low-denier fibers to fine-denier fibers is 1:1 to 3:1.

In some embodiments, in the fabric, the shaped fibers exist in both the surface layer and the inner layer. Compared with round fibers, when the inner layer contains special-shaped fibers, the special-shaped fibers will increase the capillary channels for moisture transmission in the inner layer, and improve the moisture transmission performance of the fabric. On the basis of this embodiment, the fabric is a double-layer fabric including a surface layer and an inner layer; or the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer.

Among them, the existence of special-shaped fibers in the surface layer includes two implementation scenarios. As the first embodiment, the surface layer contains some special-shaped fibers; as the second embodiment, the surface layer is made of special-shaped fibers. In the inner layer, there are two situations in which special-shaped fibers exist. As the first embodiment, the inner layer contains some special-shaped fibers; as the second embodiment, the inner layer is made of special-shaped fibers.

In some embodiments, in the fabric, both the surface layer and the inner layer are made of shaped fibers. In this case, the effect of liquid extraction from the surface layer and the moisture conductivity of the inner layer are better.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the inner layer is formed by the inner layer yarn texture, the inner layer The layer yarn is made of the inner layer yarn fibers. Among them, the surface yarn fibers use special-shaped fibers with a linear density of 0.1D to 1.0D, and the inner yarn fibers use special-shaped fibers with a linear density of 1.1D to 4.0D; and the linear density of the inner yarn fibers is greater than that of the surface yarn. The linear density of the fiber.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier shaped fibers; the inner layer is formed by the inner layer yarn texture, the inner layer The layer yarn is made of low-denier profiled fibers.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier shaped fibers; the inner layer is formed by the inner layer yarn texture, the inner layer The layer yarn is a mixed yarn made of low-denier shaped fibers and fine-denier shaped fibers.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier shaped fibers; the inner layer is formed by the inner layer yarn texture, the inner layer The layer yarn is a mixed yarn made of low-denier shaped fibers and fine-denier shaped fibers. In the mixed yarn made of low-denier profiled fibers and fine-denier profiled fibers, the quantity ratio of low-denier profiled fibers to fine-denier profiled fibers is 1:1 to 3:1.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer is made of the inner layer yarn The thread texture is formed, and the inner yarn is made of the inner yarn fiber. Among them, the surface yarn fiber adopts special-shaped fiber with a linear density of 0.1D to 1.0D, the middle layer yarn fiber adopts a fiber with a linear density of 0.1D to 1.0D, and the inner layer yarn fiber adopts a linear density of 1.1D to 4.0D. And the linear density of the inner layer of yarn fibers is greater than the linear density of the intermediate layer of yarn fibers, and the linear density of the intermediate layer of yarn fibers is greater than the linear density of the surface layer of yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer is made of low denier yarn The thread texture is formed, and the inner yarn is made of low-denier fibers. Among them, the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier special-shaped fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer is low-denier fiber Mixed yarn made of fine denier fibers. Among them, the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer yarn is low denier Mixed yarn made of fiber and fine denier fiber. In the mixed yarn made of low-denier fiber and fine-denier fiber (including mixed yarn made of low-denier profiled fiber and fine-denier profiled fiber), the quantity ratio of low-denier fiber and fine-denier fiber is 1:1 to 3: 1; The linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is a mixed yarn made of low-denier fiber and fine-denier fiber ; The inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier fiber.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is a mixed yarn made of low-denier fiber and fine-denier fiber ; The inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier fiber. In the mixed yarn made of low-denier fiber and fine-denier fiber (including mixed yarn made of low-denier profiled fiber and fine-denier profiled fiber), the quantity ratio of low-denier fiber and fine-denier fiber is 1:1 to 3: 1.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer is made of the inner layer yarn The thread texture is formed, and the inner yarn is made of the inner yarn fiber. Among them, the surface yarn fiber adopts special-shaped fiber with a linear density of 0.1D to 1.0D, the middle layer yarn fiber adopts a fiber with a linear density of 0.1D to 1.0D, and the inner layer yarn fiber adopts a linear density of 1.1D to 4.0D. The linear density of the inner layer of yarn fibers is greater than the linear density of the middle layer of yarn fibers, and the linear density of the middle layer of yarn fibers is greater than the linear density of the surface layer of yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fibers; the inner layer is made of low denier special-shaped fibers The yarn texture is formed, and the inner yarn is made of low-denier profiled fibers. Among them, the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer yarn is low Mixed yarn made of denier shaped fiber and fine denier shaped fiber. Among them, the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarns are made of the middle layer yarn fibers; the inner layer is low-denier special-shaped fibers Mixed yarn made of fiber and fine-denier profiled fiber. In the mixed yarn made of low-denier fiber and fine-denier fiber (including mixed yarn made of low-denier profiled fiber and fine-denier profiled fiber), the quantity ratio of low-denier fiber and fine-denier fiber is 1:1 to 3: 1; The linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is a mixed yarn made of low-denier fiber and fine-denier fiber ; The inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier special-shaped fiber.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is a mixed yarn made of low-denier fiber and fine-denier fiber ; The inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier special-shaped fiber. In the mixed yarn made of low-denier fiber and fine-denier fiber (including mixed yarn made of low-denier profiled fiber and fine-denier profiled fiber), the quantity ratio of low-denier fiber and fine-denier fiber is 1:1 to 3: 1.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer is made of the inner layer yarn The thread texture is formed, and the inner yarn is made of the inner yarn fiber. Among them, the surface layer yarn fiber adopts the special-shaped fiber with a linear density of 0.1D to 1.0D, the middle layer yarn fiber adopts the special-shaped fiber with a linear density of 0.1D to 1.0D, and the inner layer yarn fiber adopts a linear density of 1.1D to 4.0. D shaped fibers; and the linear density of the inner layer of yarn fibers is greater than the linear density of the middle layer of yarn fibers, and the linear density of the middle layer of yarn fibers is greater than the linear density of the surface layer of yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer special-shaped fiber; the inner layer is made of low-denier special-shaped yarn The thread texture is formed, and the inner yarn is made of low-denier profiled fibers. Among them, the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer special-shaped fiber; the inner layer is low-denier special-shaped fiber Mixed fiber made of fine-denier shaped fiber. Among them, the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer special-shaped fiber; the inner layer is low-denier special-shaped fiber Mixed yarn made of fine-denier shaped fibers. In the mixed yarn made of low-denier fiber and fine-denier fiber (including mixed yarn made of low-denier profiled fiber and fine-denier profiled fiber), the quantity ratio of low-denier fiber and fine-denier fiber is 1:1 to 3: 1; The linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of low-denier special-shaped fiber and fine-denier special-shaped fiber mixed yarn Thread; the inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier special-shaped fiber.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of low-denier special-shaped fiber and fine-denier special-shaped fiber mixed yarn Thread; the inner layer is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier special-shaped fiber. In the mixed yarn made of low-denier fiber and fine-denier fiber (including mixed yarn made of low-denier profiled fiber and fine-denier profiled fiber), the quantity ratio of low-denier fiber and fine-denier fiber is 1:1 to 3: 1.

In the embodiments of the present application, when the surface layer yarns and/or the inner layer yarns contain special-shaped fibers, the degree of special-shaped fibers has a greater impact on the moisture conductivity and quick-drying performance of the fabric. It is worth noting that, in the embodiments of the present application, the profile degree of the profiled fiber is calculated by the following formula: profile profile=(1-radius of the inscribed circle of profiled fiber cross section/circumscribed radius of the profiled fiber cross section)×100. Larger deformity is beneficial to increase the moisture-conducting channels of liquid in the fabric and increase the additional pressure difference of the whole fabric.

On the basis of the foregoing embodiments, in some embodiments, the profile degree of the profiled fiber is greater than or equal to 50. In this case, when the surface layer contains special-shaped fibers, when the linear density of the special-shaped fibers is fixed, a larger degree of irregularity is conducive to the formation of more capillaries due to the overlapping of the blades, which is beneficial to increase the specific surface area of the surface layer and promote the liquid Quickly pull away from the surface; when the inner layer contains special-shaped fibers, under the condition that the linear density of the special-shaped fibers is fixed, a larger degree of special shape is conducive to the overlapping of the blades to form more capillaries, so that the liquid in the inner layer has more channels Enter the surface layer to improve the moisture permeability of the inner layer. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 75. In some embodiments, the profile degree of the profiled fiber is greater than 95. In some embodiments, the profile degree of the profiled fiber can reach 99.5. It should be noted that, in order to give good abrasion resistance to the fabric woven with special-shaped fibers, in some embodiments, the degree of special-shaped fibers does not exceed 90.

In the foregoing embodiment, the shaped fibers are at least one selected from the group consisting of shaped fibers having a Y-shaped, cross-shaped, pentalobal shape, and a six-lobed shape in cross section. In some embodiments, the materials of the shaped fibers are the same in the surface layer and the inner layer; in some embodiments, the materials of the shaped fibers are different in the surface layer and the inner layer. When the fabric contains an intermediate layer, the profiled fibers in the surface layer and the inner layer are the same or different; the profiled fibers of the surface layer and the middle layer are the same or different; the profiled fibers of the inner layer and the middle layer are the same or different. In some embodiments, the cross-sections of the foreign fibers in the fabric are uniform. In some embodiments, the shaped fibers are cross shaped shaped fibers. Under the same conditions, the smaller the capillary channel of the cross-fiber-shaped layer, the greater the capillary force.

In the above embodiment, the smaller the angle between the different-shaped fiber blades in the special-shaped fiber, the more pronounced the differential capillary effect. The liquid in the inner layer spreads rapidly along the fiber axis, and more liquid contacts the surface layer. Under the applied force, it quickly flows into the channel of the surface layer, thereby improving the moisture transmission effect of the fabric. In some embodiments, the angle between the shaped fiber blades in the shaped fiber is 70°-85°.

As the third embodiment of this application or the third embodiment based on the first embodiment and/or the second embodiment, in the fabric, the contact angle of water on two adjacent layers of yarn fiber materials is the same ; Or two adjacent layers along the direction from the surface layer to the inner layer, the contact angle of water on different yarn fiber materials gradually increases. That is, along the direction from the surface layer to the inner layer, the surface energy of the fibers of each layer gradually decreases.

In one embodiment, the fabric is a double-layer fabric, including a surface layer and an inner layer; the contact angle of water on the yarn fiber material of the surface layer is smaller than the contact angle of water on the yarn fiber material of the inner layer.

In another embodiment, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer arranged between the surface layer and the inner layer; the contact angle of water on the surface yarn fiber material is smaller than that of water on the inner layer yarn The contact angle on the thread fiber material. The contact angle of water on the material of the intermediate layer and the contact angle of water on two adjacent layers of material depend on whether the material of the intermediate layer is the same as that of the adjacent two layers. In some embodiments, the yarn fiber material of the middle layer is the same as the surface yarn fiber material, and the contact angle of water on the surface yarn fiber material and the contact angle of water on the middle layer yarn fiber material. In some embodiments, the yarn fiber material of the middle layer is the same as the yarn fiber material of the inner layer, and the contact angle of water on the yarn fiber material of the inner layer and the contact angle of water on the fiber material of the middle layer yarn. In some embodiments, the yarn fiber material of the middle layer is different from the surface yarn fiber material and the inner yarn fiber material, and the contact angle of water on the surface yarn fiber material is smaller than that of water on the middle layer yarn fiber material. The contact angle of water on the fiber material of the yarn in the middle layer is smaller than the contact angle of water on the fiber material of the inner yarn. It should be understood that when the intermediate layer includes multiple yarn layers, the yarn fiber materials of each yarn layer may be the same or different. In some embodiments, the materials of the multiple yarn layers of the intermediate layer are the same, and the contact angle of water on the yarn fiber material of the intermediate layer does not change. In some embodiments, the multi-layer yarn layers of the middle layer have different materials, and the contact angle of water on the yarn fiber material of the middle layer gradually increases along the direction from the surface layer to the inner layer.

The contact angle of water on the inner layer of fiber material yarns labeled θ _1, the contact angle of water on the surface of the yarn of the fibrous material labeled θ _2, the value satisfies θ _1, θ ₂ of: θ ₂ θ ₁ or less . under these circumstances,

Increase, Δp correspondingly increase, so that the differential capillary effect of the "inside-surface" gradient structure is more obvious, which is conducive to improving the moisture transfer performance of the inner layer, and promotes the flow of liquid from the inner layer to the surface; at the same time, it is conducive to pumping liquid from the surface layer. Finally, it achieves good moisture absorption and quick-drying performance, and ultimately, improves the comfort of the fabric when it is worn.

In some embodiments, the surface layer yarn fibers are selected from yarn fibers having θ ₂ less than or equal to 70°, and the inner layer yarn fibers are selected from yarn fibers having θ ₁ greater than or equal to 70° and less than or equal to 120°. In this case, the inner layer has poor hydrophilicity, and the surface layer has better hydrophilicity, which is beneficial to the surface layer to absorb the liquid in the inner layer and improve the moisture conductivity of the fabric; and the surface layer has the characteristics of high specific surface area. Evaporate and pump liquid such as sweat from the surface. In some embodiments, the surface layer yarn fibers are selected from yarn fibers having θ ₂ less than or equal to 70°, and the inner layer yarn fibers are selected from yarn fibers having θ ₁ greater than or equal to 70° and less than or equal to 90°. In the fabric, when θ ₁ =θ ₂ =θ, the corresponding additional pressure difference is Δp=2a

In some embodiments, polyamide is selected as the yarn fiber material for the inner layer and the surface layer of the fabric; when the fabric is used in contact with the skin, the contact angle of sweat on the polyamide surface is 55°, and the sweat-liquid-air interfacial tension is 72mN/m , By adjusting the fiber linear density, the additional pressure difference generated by the "surface-inside" capillary texture of the fabric can reach about 11Pa.

In some embodiments, in the fabric, the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the inner layer is formed by the inner layer yarn texture, and the inner layer yarn is formed by the inner layer yarn fiber production. The linear density of the surface layer yarn fibers is 0.1D to 1.0D, and the linear density of the inner layer yarn fibers is 1.1D to 4.0D; and the linear density of the surface layer yarn fibers is smaller than the linear density of the inner layer yarn fibers. Wherein, the surface layer yarn fibers are selected from yarn fibers whose θ _{2 is} less than or equal to 70°, and the inner layer yarn fibers are selected from yarn fibers whose θ _{1 is} greater than or equal to 70° and less than or equal to 120°. In some embodiments, the surface yarn fibers are shaped fibers. In some embodiments, both the surface yarn fibers and the inner yarn fibers are shaped fibers. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50. On the basis of this embodiment, the fabric is a double-layer fabric including a surface layer and an inner layer; or the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. When the fabric is provided with an intermediate layer, the linear density of the yarn fibers of the surface layer is less than the linear density of the yarn fibers of the intermediate layer; the linear density of the yarn fibers of the intermediate layer is less than the linear density of the yarn fibers of the inner layer.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer. In the fabric, the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the inner layer is formed by the inner layer yarn texture, and the inner layer yarn is made of the inner layer yarn fibers. Wherein, the surface layer yarn fibers are selected from yarn fibers whose θ _{2 is} less than or equal to 70°, and the inner layer yarn fibers are selected from yarn fibers whose θ _{1 is} greater than or equal to 70° and less than or equal to 120°; The density is 0.1D to 1.0D, the linear density of the inner layer yarn fiber is 1.1D to 4.0D, and the linear density of the inner layer yarn fiber is greater than the linear density of the surface layer yarn fiber.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer. In the fabric, the surface layer is formed by the texture of the surface layer yarn, the surface layer yarn is made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the inner layer is formed by the inner layer yarn texture, and the inner layer yarn is made of θ ₁ greater than or Made of low-denier fibers equal to 70° and less than or equal to 120°.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer. In the fabric, the surface layer is formed by the texture of the surface layer yarn, the surface layer yarn is made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the inner layer is formed by the inner layer yarn texture, and the inner layer yarn is θ ₁ greater than or A hybrid yarn made of low-denier fibers _{equal to 70° and 120° or less and fine denier fibers with θ 1} greater than or equal to 70° and 120° or less.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the texture of the surface layer yarns, and the surface layer yarns are made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the inner layer is formed by the inner layer hybrid yarn made of textured yarn forming the inner layer yarn θ ₁ is equal to or greater than 70 ° and less than or equal to 120 ° of the low denier fibers and θ ₁ is greater than or equal to 70 ° and less than or equal to 120 ° of fine fibers . Among them, in the mixed yarn, the number ratio of low-denier fibers to fine-denier fibers is 1:1 to 3:1.

In some embodiments, the fabric includes a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the middle layer is formed by the middle layer yarn texture, the middle layer yarns are low-denier fibers and fine-denier fibers The mixed yarn is made; the inner layer is formed by the inner layer yarn texture, and the inner layer yarn is _{made of low-denier fiber with θ 1} greater than or equal to 70° and less than or equal to 120°. Among them, in the mixed yarn, the number ratio of low-denier fibers to fine-denier fibers is 1:1 to 3:1.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the inner layer is formed by the inner layer yarn texture, the inner layer The layer yarn is made of the inner layer yarn fibers. Wherein, the surface yarn fibers are selected from yarn fibers whose θ _{2 is} less than or equal to 70°, and the inner yarn fibers are selected from yarn fibers whose θ _{1 is} greater than or equal to 70° and less than or equal to 120°; the surface yarn fibers are threaded For special-shaped fibers with a density of 0.1D to 1.0D, the inner yarn fibers use special-shaped fibers with a linear density of 1.1D to 4.0D, and the linear density of the inner yarn fibers is greater than the linear density of the surface yarn fibers. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the texture of the surface layer yarn, the surface layer yarn is made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the inner layer is formed by the inner layer The yarn texture is formed, and the inner yarn is made _{of low-denier special-shaped fibers whose θ 1 is} greater than or equal to 70° and less than or equal to 120°. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the texture of the surface layer yarns, and the surface layer yarns are made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the inner layer is formed by the inner layer blend yarn texture is formed, the inner layer yarn θ ₁ is equal to or greater than 70 ° and less than or equal to 120 ° and the low denier fiber shaped θ ₁ greater than or equal to 70 ° and 120 ° or less profiled fiber denier Yarn. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the texture of the surface layer yarns, and the surface layer yarns are made _{of fine-denier shaped fibers with θ 2} less than or equal to 70°; the inner layer is formed by the inner layer blend yarn texture is formed, the inner layer yarn θ ₁ is equal to or greater than 70 ° and less than or equal to 120 ° and the low denier fiber shaped θ ₁ greater than or equal to 70 ° and 120 ° or less profiled fiber denier Yarn. In the mixed yarn, the quantity ratio of low-denier shaped fibers to fine-denier shaped fibers is 1:1 to 3:1. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of surface yarn fibers; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer yarn fiber; the inner layer is made of the inner layer yarn The thread texture is formed, and the inner yarn is made of the inner yarn fiber. Wherein, the surface yarn fibers are selected from yarn fibers with θ ₂ less than or equal to 70°, the inner yarn fibers are selected from yarn fibers with θ ₁ greater than or equal to 70° and less than or equal to 120°, and water is in the middle layer yarn fibers. The contact angle on the upper layer is greater than or equal to θ ₂ and less than or equal to θ ₁ ; the surface layer yarn fiber adopts the special-shaped fiber with a linear density of 0.1D to 1.0D, and the middle layer yarn fiber adopts the special-shaped fiber with a linear density of 0.1D to 1.0D , The inner yarn fiber adopts special-shaped fiber with a linear density of 1.1D to 4.0D; and the linear density of the inner yarn fiber is greater than the linear density of the middle layer yarn fiber, and the linear density of the middle layer yarn fiber is greater than that of the surface yarn The linear density of the fiber. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer special-shaped fiber; the inner layer is made of low-denier special-shaped yarn The thread texture is formed, and the inner yarn is made of low-denier profiled fibers. Wherein, the surface yarn fibers are selected from yarn fibers with θ ₂ less than or equal to 70°, the inner yarn fibers are selected from yarn fibers with θ ₁ greater than or equal to 70° and less than or equal to 120°, and water is in the middle layer yarn fibers. The contact angle on the upper _{layer is greater than or equal to θ 2} and less than or equal to θ ₁ ; the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of fine-denier special-shaped fiber; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is made of the middle layer special-shaped fiber; the inner layer is low-denier special-shaped fiber Mixed yarn made of fine-denier shaped fibers. Wherein, the surface yarn fibers are selected from yarn fibers with θ ₂ less than or equal to 70°, the inner yarn fibers are selected from yarn fibers with θ ₁ greater than or equal to 70° and less than or equal to 120°, and water is in the middle layer yarn fibers. The contact angle on the upper _{layer is greater than or equal to θ 2} and less than or equal to θ ₁ ; the linear density of the middle layer yarn fibers is between the surface layer yarn fibers and the inner layer yarn fibers. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by the texture of surface layer yarns, the surface layer yarns are made _{of fine denier special-shaped fibers with θ 2} less than or equal to 70°; the middle layer is formed by the middle layer yarn texture, and the middle layer yarns are made of the middle layer special-shaped fibers; θ ₁ is the inner layer is greater than or equal to 70 ° and less than or equal to 120 ° and the low denier fiber shaped θ ₁ greater than or equal to 70 ° and less than or equal to 120 ° hybrid yarn denier made from shaped fibers. The contact angle of water on the yarn fibers of the intermediate layer is greater than or equal to θ ₂ and less than or equal to θ ₁ . In mixed yarns (including mixed yarns made of low-denier shaped fibers and fine-denier shaped fibers), the number ratio of low-denier fibers to fine-denier fibers is 1:1 to 3:1; the linear density of the middle layer yarn fibers Between the surface yarn fibers and the inner yarn fibers. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by surface layer yarn texture, the surface layer yarn is made _{of fine-denier shaped fiber with θ 2} less than or equal to 70°; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is low-denier shaped fiber and fine-denier Mixed yarns made of special-shaped fibers; the inner layer is formed by the texture of the inner layer yarns, and the inner layer yarns are made _{of low-denier special-shaped fibers with θ 1} greater than or equal to 70° and less than or equal to 120°. The contact angle of water on the yarn fibers of the intermediate layer is greater than or equal to θ ₂ and less than or equal to θ ₁ . In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a multi-layer fabric, including a surface layer and an inner layer, and an intermediate layer disposed between the surface layer and the inner layer. The surface layer is formed by surface layer yarn texture, the surface layer yarn is made _{of fine-denier shaped fiber with θ 2} less than or equal to 70°; the middle layer is formed by the middle layer yarn texture, the middle layer yarn is low-denier shaped fiber and fine-denier Mixed yarns made of special-shaped fibers; the inner layer is formed by the texture of the inner layer yarns, and the inner layer yarns are made _{of low-denier special-shaped fibers with θ 1} greater than or equal to 70° and less than or equal to 120°. The contact angle of water on the yarn fibers of the intermediate layer is greater than or equal to θ ₂ and less than or equal to θ ₁ . In the mixed yarns of low-denier fibers and fine-denier fibers (including mixed yarns made of low-denier shaped fibers and fine-denier shaped fibers), the quantity ratio of low-denier fibers and fine-denier fibers is 1:1 to 3:1. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In the foregoing embodiment, the surface layer yarn is selected from polyamide yarn (a yarn made of polyamide fiber, also known as a nylon yarn, with a surface energy of ~46 mN/m), that is, the surface layer yarn fiber is a polyamide fiber.

In the above embodiment, the inner yarn is selected from polypropylene yarn (a yarn made of polypropylene fiber, also known as polypropylene yarn, with a surface energy of less than or equal to 20mN/m); polyester yarn (made of polyester fiber) Finished yarn, also known as polyester yarn, surface energy ~40mN/m); polyamide yarn (yarn made of polyamide fiber, also known as nylon yarn, surface energy ~46mN/m); surface modification At least one of the polyamide yarns (a yarn made of surface-modified polyamide fibers with a surface energy of 18-25 mN/m). That is, the inner yarn fiber is selected from at least one of polypropylene fiber, polyester fiber, polyamide fiber, and surface-modified polyamide fiber. Among them, in the surface modified polyamide yarn, surface modification methods include surface fluorine treatment, surface plasma treatment, etc., through surface modification, increase the contact angle of liquid such as water on the surface of the polyamide yarn, so as to strengthen the surface layer and The purpose of the additional pressure difference between the inner interface to improve the gradient moisture conductivity of the fabric.

Combining the above three embodiments, in some embodiments, the additional pressure difference of the adjusted fabric ranges from 8Pa to 30Pa, thereby giving the fabric excellent gradient moisture absorption and quick-drying performance.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of low-denier nylon profiled fibers. In some embodiments, the polyamide low-denier profiled fiber and/or the polyamide fine-denier fiber have a profile degree greater than or equal to 60. In some embodiments, the polyamide low-denier profiled fiber and/or the polyamide fine-denier fiber have a profile degree greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of nylon low-denier profiled fibers and nylon fine-denier profiled fibers in a ratio of 1:1 to 3:1. In some embodiments, the profile degree of the nylon fine denier profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the polyamide low-denier profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of polypropylene low-denier profiled fiber. In some embodiments, the profile degree of the nylon fine denier profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of polypropylene low-denier profiled fibers is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of polypropylene low-denier profiled fibers and nylon fine-denier profiled fibers in a ratio of 1:1 to 3:1. In some embodiments, the profile degree of the nylon fine denier profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of polypropylene low-denier profiled fibers is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of polypropylene low-denier profiled fibers and polypropylene fine-denier profiled fibers in a ratio of 1:1 to 3:1. In some embodiments, the profile degree of the nylon fine denier profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of polypropylene low-denier profiled fibers and/or polypropylene fine-denier profiled fibers is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of hydrophobically modified nylon low-denier profiled fibers. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a double-layer fabric, including a surface layer and an inner layer; the surface layer is formed by the surface layer yarn texture, the surface layer yarn is made of polyamide fine denier profiled fibers; the inner layer is formed by the inner layer yarn texture, The inner yarn is made of hydrophobically modified nylon low-denier profiled fibers and nylon fine-denier profiled fibers in a ratio of 1:1 to 3:1. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 60. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 50.

In some embodiments, the fabric is a three-layer fabric, including a surface layer, a middle layer and an inner layer; the surface layer is formed by the texture of the surface layer yarn, and the surface layer yarn is made of polyamide fine denier special-shaped fibers (surface energy ≥ 40 mN/m); The middle layer is formed by the texture of the middle layer yarn. The middle layer yarn is made of nylon fine-denier shaped fibers (surface energy ≥40mN/m) and hydrophobically modified nylon (surface energy 18-25mN/m) fine-denier shaped fibers; the inner layer It is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier hydrophobic modified nylon fiber yarn. In some embodiments, the profile degree of the nylon fine denier profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the fine-denier profiled fiber is greater than or equal to 60.

In some embodiments, the fabric is a three-layer fabric, including a surface layer, a middle layer and an inner layer; the surface layer is formed by the texture of the surface layer yarn, and the surface layer yarn is made of polyamide fine denier special-shaped fibers (surface energy ≥ 40 mN/m); The middle layer is formed by the texture of the middle layer yarn. The middle layer yarn is made of nylon fine-denier shaped fibers (surface energy ≥40mN/m) and hydrophobically modified nylon (surface energy 18-25mN/m) fine-denier shaped fibers; the inner layer It is formed by the texture of the inner layer yarn, and the inner layer yarn is made of low-denier hydrophobically modified nylon fiber (surface energy ~18-25mN/m) yarn. In some embodiments, the profile degree of the nylon fine denier profiled fiber is greater than or equal to 70. In some embodiments, the profile degree of the fine-denier profiled fiber is greater than or equal to 60.

Because the fabric has a large number of microporous structures, the microporous structure is easy to contain dirt and dirt, especially when the fabric is used in contact with the skin and is convenient for frequent cleaning, it is very easy to breed bacteria and produce odor. Based on this, in the above embodiments, the surface yarn fibers and/or the inner yarn fibers are antibacterial fibers compounded with antibacterial nanoparticles. That is, in the embodiments of the present application, the surface yarn fibers are antibacterial fibers compounded with antibacterial nanoparticles; or the inner yarn fibers are antibacterial fibers compounded with antibacterial nanoparticles; or both the surface yarn fibers and the inner yarn fibers are Antibacterial fiber compounded with antibacterial nanoparticles. Combining antibacterial nanoparticles and fiber materials to form antibacterial fibers can make the fibers of woven fabrics have certain antibacterial properties, so that after the antibacterial fibers are woven into fabrics, the fabrics are given continuous and stable antibacterial properties, which can fundamentally solve the problem of reducing fabrics. The risk of growing bacteria reduces the antibacterial properties of the fabric. Especially when the fabric thickness exceeds 0.5mm, the fabric formed by the antibacterial fiber texture has a more obvious antibacterial effect. On this basis, the fabric includes an intermediate layer arranged between the inner layer and the surface layer; the intermediate layer is formed by the intermediate layer yarn texture made of the intermediate layer yarn fibers, and the intermediate layer yarn fibers are composited with antibacterial nanoparticles The antibacterial fiber.

In some embodiments, the particle size of the antibacterial nanoparticles is less than or equal to 100 nm, which facilitates the uniform dispersion of the antibacterial nanoparticles in the fabric fibers and the formation of composite fibers. If the particle size of the antibacterial nanoparticles is greater than 100nm, the spinnability of the antibacterial fibers is poor, and because most of the antibacterial nanoparticles are inorganic materials, the filling of inorganic nanoparticles with larger diameters will easily form stress concentration points and reduce the organic fibers. Strength of. In some embodiments, the particle size of the antibacterial nanoparticles is 50 nm to 100 nm.

In some embodiments, the total weight of the antibacterial fibers is 100%, and the weight percentage of the antibacterial nanoparticles is 0.1% to 5.0%. The content of antibacterial nanoparticles in the fiber is within the above-mentioned range, which can impart a certain antibacterial property to the fiber material, and further impart antibacterial property to the fabric when weaving the fabric. Similarly, if the weight percentage of antibacterial nanoparticles in the antibacterial fiber is too high and the content of fiber components is too low, it is also not conducive to the spinning and forming of the composite antibacterial fiber, and will affect the strength of the composite antibacterial fiber.

Optionally, the antibacterial nanoparticles are selected from at least one of copper oxide, cuprous oxide, zinc oxide, and supported nanoparticles. The supported nanoparticles include one or more of silver-loaded zirconium phosphate, copper-loaded zirconium phosphate, copper-loaded carbon black, and copper-loaded titanium dioxide.

Combining the above three embodiments, in some embodiments, the surface layer yarn is made of special-shaped structure antibacterial fiber, and the linear density of the surface layer yarn is 50D to 1000D; the inner layer yarn is made of special-shaped structure antibacterial fiber, and the inner layer yarn The linear density of the wires is 50D to 1000D. The fabric obtained in this case not only has excellent moisture absorption and quick-drying performance, but also has good abrasion resistance and stiffness, and is suitable as a support material for wearable devices. In some embodiments, the fabric further includes an intermediate layer disposed between the inner layer and the surface layer; the intermediate layer is formed by the texture of the intermediate layer yarn; wherein the linear density of the surface layer yarn is 50D to 1000D; The linear density is 50D to 1000D; the linear density of the middle layer yarn is 50D to 1000D. In some embodiments, the fabric includes a surface layer, a middle layer and an inner layer. The middle layer is formed by the texture of the middle layer yarns; wherein the surface layer yarns are made of special-shaped structure antibacterial fibers, and the linear density of the surface layer yarns is 50D to 1000D. ; The inner yarn is made of special-shaped structure antibacterial fibers, and the linear density of the inner yarn is 50D to 1000D; the middle layer yarn is made of special-shaped structure antibacterial fibers, and the linear density of the middle layer yarn is 50D to 1000D.

Combining the above three embodiments, in some embodiments, the thickness of the fabric is 1.0mm to 2.5mm. In this case, the fabric has good abrasion resistance and stiffness, especially when used in wearable devices. The material of the wearable device support member has good abrasion resistance, and at the same time, can meet the support of the functional part (dial) of the wearable device (such as a watch) by the wearable part (such as a watch band).

In some embodiments, the thickness of the inner layer is 0.2 mm to 1.0 mm.

In some embodiments, the thickness of the surface layer is 0.5 mm to 2.0 mm. At this time, the thickness of the surface layer is relatively thick, which is conducive to liquid conduction and extraction from the surface layer.

In some embodiments, the thickness of the inner layer is 0.2 mm to 1.0 mm, and the thickness of the surface layer is 0.5 mm to 2.0 mm.

The fabric provided in the examples of this application can be prepared by the following method.

The embodiment of the application provides a fabric preparation method, including the following steps:

S01. Separate surface yarn fibers and inner yarn fibers, twist the surface yarn fibers to form surface yarns, and twist the inner yarn fibers to form inner yarns;

S02. Weaving fabrics by weaving or knitting.

Specifically, in the above step S01, the selection of the surface layer yarn fibers and the inner layer yarn fibers is as described above. In some embodiments, the linear density of the surface yarn fibers is less than the linear density of the inner yarn fibers. In some embodiments, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D. In some embodiments, the surface yarn fibers have a linear density of 0.1D to 1.0D, and the inner yarn fibers have a linear density of 1.1D to 4.0D. In some embodiments, the surface layer yarns are fine-denier fiber yarns, and the inner layer yarns are low-denier fiber yarns or mixed yarns made of low-denier fibers and fine-denier fibers. In some embodiments, the inner layer yarn is a mixed yarn made of low-denier fibers and fine-denier fibers; and in the mixed yarn, the number ratio of low-denier fibers to fine-denier fibers is 1:1 to 3:1.

In some embodiments, the fabric includes an intermediate layer. Therefore, in step S01, it further includes providing the intermediate layer yarn fibers. The linear density of the surface layer yarn fibers is less than the linear density of the middle layer yarn fibers, and the linear density of the middle layer yarn fibers is less than the linear density of the inner layer yarn fibers. In some embodiments, the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D. In some embodiments, the surface yarn fibers have a linear density of 0.1D to 1.0D, the middle layer yarn fibers have a linear density of 0.1D to 1.0D, and the inner layer yarn fibers have a linear density of 1.1D to 4.0D. In some embodiments, the surface layer yarns are fine-denier fiber yarns, the middle layer yarns are low-denier fiber yarns or mixed yarns made of low-denier fibers and fine-denier fibers, and the inner layer yarns are low-denier fiber yarns. String. In some embodiments, the middle layer yarn is a low-denier fiber yarn or a mixed yarn made of low-denier fiber and fine-denier fiber; and in the mixed yarn, the quantity ratio of low-denier fiber to fine-denier fiber is 1: 1 to 3:1.

In some embodiments, the surface yarn fibers are antibacterial fibers composited with antibacterial nanoparticles; or the inner yarn fibers are antibacterial fibers composited with antibacterial nanoparticles; or both the surface yarn fibers and the inner yarn fibers are composite Antibacterial fiber with antibacterial nanoparticles. In some embodiments, the fabric includes an intermediate layer, and the yarn fibers of the intermediate layer are antibacterial fibers compounded with antibacterial nanoparticles. In some embodiments, the particle size of the antibacterial nanoparticles is less than or equal to 100 nm. In some embodiments, the particle size of the antibacterial nanoparticles is 50 nm to 100 nm. In some embodiments, the total weight of the antibacterial fibers is 100%, and the weight percentage of the antibacterial nanoparticles is 0.1% to 5.0%. Optionally, the antibacterial nanoparticles are selected from at least one of copper oxide, cuprous oxide, zinc oxide, and supported nanoparticles. The supported nanoparticles include one or more of silver-loaded zirconium phosphate, copper-loaded zirconium phosphate, copper-loaded carbon black, and copper-loaded titanium dioxide.

In some embodiments, the preparation method of the antibacterial fiber is:

S011. Provide antibacterial nanoparticles and first fiber matrix resin, extrude and granulate to prepare antibacterial masterbatch;

S012. After mixing the antibacterial masterbatch and the second fiber matrix resin, melt spinning to prepare antibacterial fibers of different sizes.

Among them, the first fiber matrix resin and the second fiber matrix resin are the matrix components of the yarn fibers, and the materials of the two are the same or different. In some embodiments, the first fiber matrix resin and the second fiber matrix resin are the same fiber matrix resin.

In the above step S011, when preparing the antibacterial masterbatch, based on the total weight of the first fiber matrix resin and the second fiber matrix resin as 100%, the weight percentage contains the fiber matrix resin and the antibacterial resin with a content of 10% to 20%. Nano particles are compounded to prepare antibacterial masterbatch. On the one hand, the use of fiber matrix resin with a content of 10% to 20% by weight as the first fiber matrix resin composite antibacterial nanoparticles can improve the dispersion performance of antibacterial nanoparticles; on the other hand, because the fiber matrix resin is extruded After granulation treatment, its spinnability and bitterness properties are reduced, and the abrasion resistance is reduced. Therefore, the use of as little fiber matrix resin as possible to prepare antibacterial masterbatch can minimize the impact of extrusion granulation on the mechanical strength and spinnability of the fiber, and improve the spinning continuity and spinning continuity when preparing antibacterial fibers into antibacterial yarns. Mechanical strength of antibacterial yarn.

In the above step S012, in the process of mixing the antibacterial masterbatch and the second fiber matrix resin, the color masterbatch can be mixed with the antibacterial masterbatch and the second fiber matrix resin according to actual needs to give the fiber the desired color.

In the above step S01, twisting the surface layer yarn fibers to form the surface layer yarn can be realized by twisting by a twisting machine. In some embodiments, the surface yarns are all made of fine-denier fibers that are twisted through a twisting machine. In some embodiments, the surface layer yarn contains shaped fibers. In some embodiments, the surface yarns are made of profiled fibers. In some embodiments, the surface yarn is made of profiled antibacterial fibers. In some embodiments, the surface layer yarns are made of antibacterial fibers with special-shaped structures, and the linear density of the surface layer yarns is 50D to 1000D.

Twisting the inner yarn fibers to form the inner yarn can be achieved by twisting by a twisting machine. In some embodiments, the inner layer yarn contains shaped fibers. In some embodiments, the inner yarn is made of profiled fibers. In some embodiments, the inner yarn is made of profiled antibacterial fibers. In some embodiments, the inner layer yarn is made of antibacterial fibers with a special-shaped structure, and the linear density of the inner layer yarn is 50D to 1000D.

In some embodiments, the profile degree of the profiled fiber is greater than or equal to 75. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 90. In some embodiments, the profile degree of the profiled fiber is greater than or equal to 100.

In the above step S02, the fabric is woven by weaving or knitting. In one embodiment, weaving the fabric by weaving specifically includes: layering the upper and lower layers of the shed according to the organizational requirements of the surface warp, and weaving the surface layer with the surface weft; when weaving the inner layer, that is, when the inner weft is inserted, the surface All the warp yarns must be lifted up to form the upper layer of the shed. The inner warp is divided into the upper and lower layers of the shed according to the organization requirements to be interwoven with the inner weft. The surface warp and the inner weft are not interwoven.

In one embodiment, the fabric is knitted by knitting, and the method includes: low-denier fiber yarns or composite fiber yarns formed by low-denier composite fine deniers are bent up and down section by section along the weft direction to form loops, which are sequentially inserted into the previous yarn to form loops. The loops are looped and knitted to form the inner layer structure of the webbing; the fine-denier fiber yarns are knitted along the weft to form loops, and are intertwined and woven in the warp direction to form the surface structure of the webbing.

When the fabric includes an intermediate layer, the preparation of the intermediate layer can be carried out with reference to the above-mentioned method.

In some embodiments, the fabric can be specially treated according to its actual application requirements. In some embodiments, when the fabric is used to prepare the strap of a smart watch, the fabric is cut into a suitable size, lugs are prepared and perforated, and a moisture-absorbing and quick-drying strap is prepared after the buckle is installed.

A second aspect of the embodiments of the present application provides a wearable device, and the wearable device includes the fabric of the first aspect. In this case, when the part containing the fabric in the wearable device touches the skin (the inner layer contacts the skin), the fabric can absorb the sweat removed from the skin and drain it to the surface through the inner layer to extract moisture, achieving moisture absorption and quick-drying performance. Ultimately provide the comfort of wearable devices.

In one embodiment, the wearable device is a watch, the watch includes a watch band, and the material of the watch band is fabric. The use of fabric as the watchband material gives the watchband good moisture absorption and quick-drying performance, which is conducive to the discharge of skin sweat, and can improve the comfort of the watch when wearing it.

The following is a description with specific examples.

Example 1

A fabric watchband includes an inner layer in contact with the skin and a surface layer combined with the inner layer. Among them, the yarn (surface warp and surface weft) in the surface layer has a linear density of 400D, which is made by twisting cross nylon antibacterial fibers with a linear density of 0.8D. Among them, the cross nylon antibacterial fiber has a blade angle of 70° and has a profiled degree. 50, the surface energy is 46mN/m; the yarn in the inner layer (the inner warp and the inner weft) has a linear density of 400D, which is made by twisting cross nylon antibacterial fibers with a linear density of 0.8D and 2D, and a 2D cross nylon antibacterial fiber blade The angle is 70°, the profile degree is 50, and the surface energy is 46mN/m; and the number ratio of the cross nylon antibacterial fiber with a linear density of 2D (low denier) to the cross nylon antibacterial fiber with a linear density of 0.8D (fine denier) is 3: 1. The thickness of the fabric strap is 2.0mm and the width is 2.0mm.

The fabric watchband is prepared by a double-layer plain weaving method.

The optical microscope image of the surface layer cross-section of the fabric watchband provided in Example 1 is shown in FIG. 4A; the optical microscope image of the inner layer cross-section is shown in FIG. 4B.

Example 2

A fabric watchband includes an inner layer in contact with the skin, a middle layer combined with the inner layer, and a surface layer combined with the middle layer. Among them, the yarn (surface warp and surface weft) in the surface layer has a linear density of 400D, which is made by twisting cross nylon antibacterial fibers with a linear density of 0.9D. Among them, the cross nylon antibacterial fiber has a blade angle of 70° and an irregularity. 75, the surface energy is 46mN/m; the yarn (middle warp and middle weft) of the middle layer has a linear density of 300D, which is made by twisting cross hydrophobic modified nylon antibacterial fibers with a linear density of 0.5D. Among them, cross nylon antibacterial fibers , The blade angle is 70°, the profile degree is 85, and the surface energy is 22mN/m; the yarn in the inner layer (the inner warp and inner weft) has a linear density of 300D, and adopts cross-shaped hydrophobic modification with a linear density of 0.5D and 1.1D Nylon fiber is twisted, and the ratio of the cross shaped fiber with a linear density of 1.1D to the cross shaped fiber with a linear density of 0.5D is 3:1. The blade angle of the two kinds of cross nylon antibacterial fibers is 70°, and the profile degree is 50. , The surface energy is 20mN/m. The thickness of the fabric strap is 2.0mm and the width is 2.0mm.

The fabric watchband is prepared by a double-layer plain weaving method.

Example 3

A fabric watchband includes an inner layer in contact with the skin and a surface layer combined with the inner layer. Among them, the yarn (surface warp and surface weft) in the surface layer has a linear density of 400D and is made by twisting cross polyester antibacterial fibers with a linear density of 0.8D. Among them, the cross polyester antibacterial fiber has a blade angle of 80° and an irregularity. 70, the surface energy is 40mN/m; the yarn in the inner layer (the inner warp and the inner weft) has a linear density of 400D, which is made by twisting cross polyester special-shaped fibers with a linear density of 0.9D and 3D, and the linear density is 3D ( The ratio of the cross polyester antibacterial fiber with a low denier) to the cross polyester antibacterial fiber with a linear density of 0.9D (fine denier) is 2:1. The blade angle of the two cross polyester antibacterial fibers is 75°, the profile degree is 65, and the surface energy is 40mN. /m. The thickness of the fabric strap is 0.8mm and the width is 2.0mm.

The fabric watchband is prepared by a double-layer plain weaving method.

Example 4

A fabric watchband includes an inner layer in contact with the skin and a surface layer combined with the inner layer. Among them, the yarn (surface warp and surface weft) in the surface layer has a linear density of 800D, and is made of cross-shaped nylon antibacterial fiber with a linear density of 0.3D. Among them, the cross-shaped nylon antibacterial fiber has a blade angle of 70°, which is shaped Degree 80, surface energy 45mN/m; the yarn (in warp and weft) in the inner layer has a linear density of 400D, which is made of twisted cross nylon antibacterial fibers with a linear density of 0.3D and 1.3D, 1.3D cross nylon The antibacterial fiber blade angle is 70°, the profile degree is 50, and the number ratio of cross nylon antibacterial fiber with a linear density of 0.3D (fine denier) and a cross shaped nylon antibacterial fiber with a linear density of 1.3D (low denier) is 1:4 . The thickness of the fabric strap is 1.2mm and the width is 2.0mm.

The fabric watchband is prepared by a double-layer plain weaving method.

Example 5

A fabric watchband includes an inner layer in contact with the skin and a surface layer combined with the inner layer. Among them, the yarn (surface warp and surface weft) in the surface layer has a linear density of 1000D, which is made by twisting cross nylon antibacterial fibers with a linear density of 0.8D. Among them, the cross nylon antibacterial fiber has a blade angle of 70° and an irregularity. 50, the surface energy is 46mN/m; the yarn in the inner layer (the inner warp and the inner weft) has a linear density of 800D, made of nylon antibacterial cross shaped fibers with a linear density of 0.8D and 2D, and 2D nylon antibacterial cross shaped The fiber blade angle is 70°, the profile degree is 50, and the surface energy is 46mN/m; and the number ratio of the cross profiled fiber with a linear density of 2D (low denier) to the cross profiled fiber with a linear density of 0.8D (fine denier) is 3: 1. The thickness of the fabric strap is 3.0mm and the width is 2.0mm.

The fabric watchband is prepared by a double-layer plain weaving method.

Comparative example 1

Regular strap

A fabric strap with a single layer structure. Among them, the yarn (surface warp and surface weft) has a linear density of 400D and is made of round nylon antibacterial fiber with a linear density of 0.8D by twisting, with a surface energy of 46mN/m; the thickness of the fabric strap is 2.0mm, and the width is 2.0mm.

The fabric watchband is prepared by a plain weaving method.

Comparative example 2

Regular strap

A fabric strap with a single layer structure. Among them, the yarn (surface warp and surface weft) has a linear density of 400D and is made of round nylon fiber with a linear density of 0.8D by twisting, with a surface energy of 46mN/m; the thickness of the fabric strap is 2.0mm, and the width is 2.0 mm.

The fabric watchband is prepared by a double-layer plain weaving method.

The fabric watchbands provided in the examples are tested for performance, and the test methods and test results are as follows:

(1) Moisture absorption and quick drying performance

The fabric watchbands prepared in Examples 1 to 5 and the watchbands provided in Comparative Example 1 and Comparative Example 2 were tested for moisture absorption and quick-drying performance according to the method of the national standard GB/T21655.2-2009. The test results are shown in Table 1 below.

Table 1

It can be seen from the above that the moisture absorption and quick-drying performance of the fabric watchband prepared in the examples of the present application meets the requirements of the national standard GB/T 21655.2-2009 for moisture absorption and quick-drying. Taking Example 2 as an example, the water absorption rate of the fabric watchband prepared in Example 2 is 53.4%, the wicking height is 125mm, the dripping diffusion time is 1.2s, the evaporation rate is 3.13g/h, the soaking time is 1.2s, and the water absorption rate is It is 40.3%/s, the maximum infiltration radius of the seepage surface is 15mm, the liquid water diffusion speed of the seepage surface is 3.5mm/s, the unidirectional transmission index is 301.8, and the comprehensive liquid water dynamic transmission index is 2.25, which is significantly better than the conventional one provided by the comparative example. Various indicators of moisture absorption and quick-drying performance in the strap.

(2) Antibacterial performance

The watchbands provided in Examples 1 to 5 and Comparative Example 1 and Comparative Example 2 were used to measure the antibacterial properties of the watchbands in accordance with GB/T 20944.3-2008 Antibacterial Performance Evaluation Part 3 (oscillation method). The test results are shown in Table 2 below.

Table 2

抗菌性能Antibacterial properties	金黄色葡萄球菌抑菌率Inhibition rate of Staphylococcus aureus	大肠杆菌抑菌率Escherichia coli inhibition rate	白色念珠菌抑菌率Inhibition rate of Candida albicans
实施例1Example 1	≥99％≥99%	≥99％≥99%	78％78%
实施例2Example 2	≥99％≥99%	≥99％≥99%	79％79%
实施例3Example 3	≥99％≥99%	≥99％≥99%	77％77%
实施例4Example 4	≥99％≥99%	≥99％≥99%	80％80%
实施例5Example 5	≥99％≥99%	≥99％≥99%	79％79%
对比例1Comparative example 1	33％33%	36％36%	15％15%
对比例2Comparative example 2	35％35%	33％33%	12％12%

For the fabric straps prepared in Examples 1 to 5, the antibacterial rate of Staphylococcus aureus (after washing 50 times): ≥99% (AAA grade); the antibacterial rate of Escherichia coli (after washing 50 times): ≥99% (AAA Grade); Antibacterial rate of Candida albicans (after washing 50 times): 77% to 80% (grade AAA). It can be seen from the above that the fabric watchband prepared in the examples of the present application has excellent antibacterial properties. The fabric watchband prepared by the comparative example, the antibacterial rate of Staphylococcus aureus (after washing 50 times): 33% to 35%; the antibacterial rate of Escherichia coli (after washing 50 times): 33% to 36%; the inhibition rate of Candida albicans Bacteria rate (after washing 50 times): 12%-15%.

Finally, it should be noted that the above are only specific implementations of this application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application shall be covered by this application. Within the scope of protection applied for. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A fabric, characterized by comprising at least a surface layer and an inner layer bonded to a surface of the surface layer, wherein the surface layer is made of surface layer yarn fibers, and the inner layer is made of inner layer yarn fibers;

The porosity of the surface layer is greater than the porosity of the inner layer, and the pore size of the surface layer is smaller than the pore size of the inner layer.
The fabric according to claim 1, wherein the fabric further comprises an intermediate layer disposed between the inner layer and the surface layer; the porosity of the intermediate layer is between the porosity of the surface layer and the porosity of the surface layer. The porosity of the inner layer is between; the pore size of the intermediate layer is between the pore size of the surface layer and the pore size of the inner layer.
The fabric according to claim 2, wherein the intermediate layer includes 1 to 3 yarn layers.
The fabric according to claim 3, wherein the intermediate layer comprises 2 or 3 yarn layers; and along the direction from the surface layer to the inner layer, the porosity of the intermediate layer gradually decreases , The aperture size gradually increases.
The fabric according to any one of claims 1 to 4, wherein the linear density of yarn fibers in the fabric gradually increases along the direction from the surface layer to the inner layer.
The fabric according to claim 5, wherein the difference between the linear density of the surface yarn fibers and the linear density of the inner yarn fibers is greater than or equal to 0.5D.
The fabric according to claim 6, wherein the linear density of the yarn fibers of the surface layer is 0.1D to 1.0D, and the linear density of the yarn fibers of the inner layer is 1.1D to 4.0D.
8. The fabric of claim 7, wherein the surface layer yarn fibers are fine-denier fibers, and the inner layer yarn fibers are low-denier fibers; or

The surface layer yarn fibers are fine-denier fibers, and the inner layer yarn fibers are mixed fibers including low-denier fibers and fine-denier fibers.
The fabric according to claim 6, wherein the fabric comprises an intermediate layer disposed between the inner layer and the surface layer, and the intermediate layer is made of intermediate layer yarn fibers; wherein, the The linear density of the yarn fibers of the surface layer is 0.1D to 1.0D, the linear density of the yarn fibers of the middle layer is 0.1D to 1.0D, and the linear density of the inner layer yarn fibers is 1.1D to 4.0D.
The fabric according to claim 9, wherein the surface layer yarn fibers are fine denier fibers, the middle layer yarn fibers are mixed fibers including low denier fibers and fine denier fibers, and the inner layer yarns The fiber is a low-denier fiber.
The fabric according to claim 8 or 10, wherein the number ratio of the low-denier fiber to the fine-denier fiber in the mixed fiber is 1:1 to 3:1.
The fabric according to any one of claims 1 to 4 and 6 to 10, wherein at least the surface layer yarn fibers contain special-shaped fibers.
The fabric according to claim 12, wherein the surface layer is made of special-shaped fibers; or

Both the surface layer and the inner layer are made of special-shaped fibers; or

The fabric includes an intermediate layer arranged between the surface layer and the inner layer, and the surface layer, the intermediate layer and the inner layer are all made of special-shaped fibers.
The fabric according to claim 13, characterized in that the degree of irregularity of the irregular fibers is greater than or equal to 50.
The fabric according to claim 14, characterized in that the degree of irregularity of the special-shaped fibers is greater than or equal to 75.
15. The fabric according to claim 15, characterized in that the deformity of the deformed fibers is greater than or equal to 90.
The fabric according to any one of claims 13 to 16, wherein the special-shaped fiber is selected from at least one of special-shaped fibers with a cross-section of Y-shaped, cross-shaped, pentalobal, and six-lobed.
The fabric according to any one of claims 1 to 4, 6 to 10, and 13 to 16, wherein the contact angle of water on two adjacent layers of yarn fiber materials is the same; or

Along the direction from the surface layer to the inner layer, the contact angle of water on different yarn fiber materials gradually increases.
The fabric according to claim 18, wherein the contact angle of water on the inner yarn fiber material is marked as θ 1 , and the contact angle of water on the surface yarn fiber material is marked as θ 2 , and the surface layer The yarn fibers are selected from fibers whose θ 2 is less than or equal to 70°, and the inner layer yarn fibers are selected from fibers whose θ 1 is greater than or equal to 70° and less than or equal to 120°, and θ 2 is less than or equal to θ 1 .
The fabric according to claim 19, wherein the surface layer yarn fibers are selected from polyamide fibers; and/or

The inner layer yarn fiber is selected from at least one of polypropylene fiber, polyester fiber, and surface hydrophobically modified polyamide fiber.
The fabric according to any one of claims 1 to 4, 6 to 10, 13 to 16, 19, 20, wherein the surface yarn fibers are antibacterial fibers compounded with antibacterial nanoparticles; and/or

The inner yarn fiber is an antibacterial fiber compounded with antibacterial nanoparticles; and/or

The fabric includes an intermediate layer arranged between the inner layer and the surface layer; the intermediate layer yarn fibers in the intermediate layer are antibacterial fibers compounded with antibacterial nanoparticles.
The fabric according to claim 21, wherein the particle size of the antibacterial nanoparticles is less than or equal to 100 nm; and/or

Taking the total weight of the antibacterial fibers as 100%, the weight percentage of the antibacterial nanoparticles is 0.1% to 5.0%; and/or

The antibacterial nanoparticles are selected from at least one of copper oxide, cuprous oxide, zinc oxide, and supported nanoparticles.
The fabric according to claim 22, wherein the fabric is a double-layer fabric including a surface layer and an inner layer; wherein the surface layer is formed by a surface layer yarn texture made of a special-shaped structure antibacterial fiber, and the surface layer The linear density of the yarn is 50D to 1000D; the inner layer is formed by the texture of the inner layer yarn made of antibacterial fibers with special-shaped structure, and the linear density of the inner layer yarn is 50D to 1000D.
The fabric according to claim 22, wherein the fabric comprises a surface layer, a middle layer and an inner layer, and the middle layer is formed by a middle layer yarn texture made of middle layer yarn fibers;

Wherein, the surface layer is formed by a surface layer yarn texture made of special-shaped structure antibacterial fibers, and the linear density of the surface layer yarn is 50D to 1000D; The inner layer yarn has a linear density of 50D to 1000D; the intermediate layer is formed by an intermediate layer yarn texture made of special-shaped structure antibacterial fibers, and the intermediate layer yarn has a linear density of 50D to 1000D .
The fabric according to any one of claims 1 to 4, 6 to 10, 13 to 16, 19, 20, 22 to 24, wherein the thickness of the fabric is 1.0 mm to 2.5 mm; and/or

The thickness of the inner layer is 0.2mm to 1.0mm; and/or

The thickness of the surface layer is 0.5 mm to 2.0 mm.
A wearable device, characterized by comprising the fabric according to any one of claims 1 to 25.
The wearable device of claim 26, wherein the wearable device is a watch, the watch includes a watch band, and the material of the watch band is the fabric.