Multi-scene heat and moisture-wicking comfort functional knitted fabric and method for preparing the same

Abstract

This application discloses a multi-scene thermal and hygroscopic comfort functional knitted fabric, which is applicable to multiple scenes and includes a fabric body having a garment surface and a skin-contacting surface, and a preparation method thereof, the fabric body includes at least two kinds of yarns including a first yarn and a second yarn, one of which is a light-absorbing heat-generating yarn, the denier of the first yarn is different from that of the second yarn, and the yarn is divided into a coarse yarn and a fine yarn, the contact distances of the coarse yarn and the fine yarn with the outside are differentiated, and the light-absorbing heat-generating yarn is distributed in a corresponding area of ​​the fabric body according to a preset condition, thereby forming a fabric body having thermal comfort performance that can absorb radiant energy and convert it into thermal energy, and differentiated moisture conduction capacity (OWTC) of 100% or more on both sides of the fabric for liquid water. The present invention can be adapted to use in various scenes, including a low metabolism stage, a high metabolism stage, and a post-exercise recovery stage, and can effectively improve wearing comfort by performing different functions in different stages.

Description

Technical Field

[0001] The present invention belongs to the technical field of textile fabrics, and specifically relates to a multi-scene thermo-hygro comfort functional knitted fabric that absorbs light and generates heat, and has differentiated moisture conduction and quick drying properties on both sides of the fabric with respect to liquid water, and a method for preparing the same.

Background Art

[0002] With the improvement of living standards, the aspects of consumers' lives have diversified, and there is a need to quickly switch between many scenes in life, leisure, and work. The demand for functional fabrics that can meet the needs of various scenes is very high. In particular, for fabrics in autumn and winter, currently, research is being conducted on how to achieve a balance between heat preservation and heat dissipation, and exercise and beauty have also received more attention in recent research.

[0003] Regarding heat retention, Japanese Patent No. 202011623625.5, "Five-Layer Hollow Thermal Insulating Cotton Polyester Brushed Fabric and Knitting Method," discloses a five-layer hollow thermal insulating cotton polyester brushed fabric consisting of a first face layer, a second face layer, and an air layer connecting the first and second face layers. The first face layer includes a first spun yarn and a second spun yarn, the connecting yarn is connected to the second spun yarn, the first spun yarn is located on the side furthest from the air layer, and the second face layer includes a third spun yarn and a fourth spun yarn. The above thermal insulation fabric is achieved by increasing the thickness of the fabric, but increasing the thickness often results in an increase in the weight of the garment and also makes it look bulky. How to improve the thermal insulation per unit thickness of the material has already been extensively studied, and for example, hollow polyester fibers have the characteristics of thermal insulation and lightweight. In the finishing process after brushing, the thermal insulation performance of the fabric is enhanced by increasing the thickness of the fabric and simultaneously incorporating more still air into the fabric. The larger the volume of air contained in clothing fabric, the less heat is lost through conduction, resulting in better heat retention. Since air is not good at blocking radiant heat, typically, the volume of fibers in the heat-retaining material is increased, or materials with infrared reflection or absorption functions are used. By reducing the airflow within the internal structure and using materials with a large specific surface area, airflow is effectively blocked, reducing heat loss.

[0004] Regarding heat dissipation: As is well known, it is necessary to enhance heat dissipation during exercise, and when excess heat generated during exercise accumulates in the body, it results in sweating. Many previous studies have also extensively investigated the effect of sweat transfer characteristics in fabrics on comfort.

[0005] Patent application 201922433023.2 discloses a "unidirectional moisture-conducting fabric" that includes a waterproof inner layer, a unidirectional moisture-conducting point, a fabric backing layer, a fabric surface layer, and a hydrophilic outer layer. The waterproof inner layer and the unidirectional moisture-conducting point are located in the innermost layer and come into contact with the human body. The waterproof inner layer is compounded on the inside of the fabric backing layer through a printing process to form the unidirectional moisture-conducting point, and the hydrophilic outer layer is compounded on the outermost part of the fabric surface layer through a immersion-pressure-dry-bake process to realize the unidirectional moisture-conducting function.

[0006] Patent application 201710056898.8, "Elastic water-absorbing quick-drying knitted fabric and its uses," discloses a knitted fabric having a surface layer and a back layer. Both the surface and back layer yarns are polyester elastic fibers. At least one yarn in the back layer within a single structural cycle consists of two different knitting operations, A and B, with B being formed by an operation other than loop knitting. The water absorption rate of the knitted fabric is 3 seconds or less, the water absorption and diffusion area ratio of the surface layer to the back layer is 3.0 or more, and the water retention rate of the back layer is 20% or less.

[0007] Patent application 201811027306.0, "Multifunctional Unidirectional Moisture Conducting Fabric," discloses a multifunctional unidirectional moisture conducting double-sided knitted mesh fabric. The back layer of the fabric uses polyethylene yarn or polyethylene composite fiber yarn, such as polyethylene / polyamide, polyethylene / polyester, or polyethylene / polypropylene, and a mesh structure is formed by a tuck weaving method. The outer layer is plain woven using yarn with good water absorption, such as cotton yarn, linen yarn, regenerated cellulose fiber yarn, or polyester yarn. The surface area of ​​the outer layer of the fabric is larger than that of the back layer, making it cool and dry, and it has a unidirectional moisture conducting function.

[0008] In daily life, rapid transitions between scenes constantly occur, such as (1) a warm shopping mall and a cold road, (2) an exercise space and a rest room, and (3) a hot and humid kitchen and a comfortable room. Since these scene transitions always involve rapid temperature changes, there is a need to develop clothing made from fabrics that can adapt to multi-scene environments and balance the body's heat retention and heat dissipation needs. While much research has been done on existing technologies for heat retention and sweating, there is little reporting on how to achieve a balance between the heat dissipation and sweating requirements in high-metabolism states and the heat retention requirements in low-metabolism states in multi-scene lifestyles. [Overview of the project] [Problems that the invention aims to solve]

[0009] The technical problem to be solved by the present invention is to provide a multi-scene thermo-hygro comfort functional woven fabric and a method for preparing the same.

Means for Solving the Problem

[0010] Technical solution A multi-scene thermo-hygro comfort functional woven fabric, comprising a fabric body applicable to multi-scenes, the fabric body having a clothing surface and a skin-adhering surface, the fabric body including at least two types of yarns including a first yarn and a second yarn, one of which is a light-absorbing heat-generating yarn. The denier number of the first yarn is different from that of the second yarn, and they are divided into thick yarns and thin yarns. The thick yarns and the thin yarns have a structural relationship of D 粗 :D 細 ≧1.2, F 粗 :F 細 ≦0.9, where D 粗 represents the denier number of the thick yarn, D 細 represents the denier number of the thin yarn, F 粗 represents the filament number of the thick yarn, F 細 represents the filament number of the thin yarn. The fabric body has a number of unit circulation structures formed by weaving thick yarns and thin yarns, and the thick yarns and thin yarns in one unit circulation structure are arranged at a proportional interval of 2.0≧m 粗 :n 細 ≧0.3, and m 粗 ≦2.0, n 細 represents the quantity of the thin yarn, m 粗 represents the quantity of the thick yarn, and the contact distances of the thick yarns and thin yarns with the outside are differentiated. By forming a functional layer in which the first yarn and the second yarn are woven in the fabric body to absorb radiant energy and convert it into thermal energy, a fabric body having a thermal comfort performance capable of absorbing radiant energy and converting it into thermal energy, and a differentiated moisture conduction ability (OWTC) of 100% or more on both sides of the fabric with respect to liquid water is formed.

[0011] As a further means, the ratio of the moisture transmission ability of the thick yarn to the moisture transmission ability of the thin yarn is LP 細 :LP 粗 ≧1.2.

[0012] As a further measure, the fabric body has a weft-knit plain weave structure, the first yarn is a roving yarn and the first yarn is a light-absorbing heat-generating yarn, or the second yarn is a fine yarn and the second yarn is a light-absorbing heat-generating yarn.

[0013] As a further measure, the fabric body has a basic double-sided structure, meaning that the tissue structure of the garment surface and the skin-contact surface of the fabric body are the same, the first yarn is a roving yarn and the first yarn is a light-absorbing heat-generating yarn and the light-absorbing heat-generating yarn as the first yarn is distributed on the garment surface and the skin-contact surface of the fabric body, or the second yarn is a fine yarn and the second yarn is a light-absorbing heat-generating yarn and the light-absorbing heat-generating yarn as the second yarn is distributed on the garment surface and the skin-contact surface of the fabric body.

[0014] As a further measure, the content of the light-absorbing heat-generating yarn in the fabric body is greater than 10%, and preferably greater than 25%.

[0015] As a further measure, the light-absorbing heat-generating yarn is provided on the garment surface or skin-contacting surface of the fabric body, and the coverage rate exceeds 20%, preferably exceeding 30%.

[0016] As a further measure, the light-absorbing heat-generating yarn is a yarn in which one or more of acrylic, polyester, and nylon are added as a light-absorbing substance to provide light-absorbing heat-generating functionality.

[0017] As a further measure, the garment surface and / or skin-contact surface of the fabric body is subjected to a hair-effect treatment by brushing, sanding, and fleecing to form a pile layer.

[0018] A method for preparing a multi-scene heat- and moisture-wicking comfort functional knitted fabric, comprising the following steps:

[0019] The process involves selecting a first yarn and a second yarn with different denier counts to form one type of coarse yarn and one type of fine yarn, wherein either the first yarn or the second yarn is a light-absorbing heat-generating yarn, and by knitting the first yarn and the second yarn together, a fabric body is formed that has thermal comfort performance capable of absorbing radiant energy and converting it into thermal energy, and differentiated moisture conduction capacity (OWTC) of 100% or more on both sides of the fabric in relation to liquid water, and distributing the light-absorbing heat-generating yarn on the garment side or skin-contacting side of the fabric body.

[0020] The first and second threads are D 粗 :D 細 ≥1.2, F 粗 :F 細 It has a corresponding structural relationship of ≤0.9, D 粗 D represents the denier number of the roving yarn. 細 represents the denier count of the fine thread, F 粗 represents the number of filaments in the roving, F 細 The number of filaments in the fine thread represents the number of filaments in the fine thread. The fabric itself has a series of unit cycles made by weaving together coarse and fine threads, and the number of coarse and fine threads in one unit cycle is 2.0 ≥ m. 粗 :n 細 Arranged at proportional intervals of ≥0.3, and m 粗 ≤ 2.0, and n 細 represents the quantity of fine threads, m 粗 This step involves representing the quantity of coarse yarn, differentiating the contact distance between the coarse yarn and the fine yarn with the outside based on the relative sizes of the coarse and fine yarns, and forming the fabric so that both sides of the fabric have differentiated moisture conduction capabilities.

[0021] The unidirectional moisture conduction capacity of the obtained fabric body is OWTC ≥ 100%, the liquid evaporation rate for synthetic fiber fabrics is ≥ 1.0 ml / hr, and the liquid evaporation rate for cellulose fiber blended fabrics is ≥ 0.5 ml / hr. [Effects of the Invention]

[0022] Beneficial effects The fabric of the present invention can be widely applied to various types of clothing and has the following different functions during the wearing process. The fabric itself absorbs radiant energy and converts it into thermal energy, and at the same time uses the generated thermal energy to raise the temperature of the fabric surface. At the same time, it also has a moisture-comfort function. By differentiating the contact distance between the coarse and fine threads with the outside, the fabric has the functions of differentiated heat transfer and quick drying on both sides. The fabric has the following different functions during the wearing process. In the low metabolic stage, it reduces the dissipation of heat in the form of radiation and converts it into thermal energy to increase the heat retention effect per unit thickness of the fabric. In the high metabolic stage, due to the difference in moisture conduction of the fabric, it makes it easier to expel sweat from the body surface to the outer surface of the fabric, improving the freshness of the lining of the fabric, and at the same time, it also achieves the effect of improving the evaporation rate of liquid water by utilizing the high surface temperature of the fabric. In the recovery stage after exercise, by utilizing the difference in moisture conduction and the rise in fabric temperature, it further helps to shorten the drying process of the fabric, and by reducing the time of cold, damp discomfort after exercise, it enhances the comfort of wearing the fabric. [Brief explanation of the drawing]

[0023] [Figure 1] Figure 1 is a schematic diagram of the principle structure of the present invention.

[0024] [Figure 2] Figure 2 is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0025] [Figure 3] Figure 3 shows the comparative test curve of the photothermal energy storage performance of Example 1 of the present invention.

[0026] [Figure 4] Figure 4 is a schematic diagram of the structure of Embodiment 2 of the present invention. [Modes for carrying out the invention]

[0027] Optimal Embodiment of the Invention To further understand the features, technical methods, and specific objectives and functions of the present invention, the present invention will be described in more detail below, linking the drawings with specific embodiments.

[0028] People experience various scenarios when getting dressed, but some common ones are shown in the table below.

[0029] Table 1 JPEG0007863172000001.jpg80170

[0030] In the definition above, low-intensity exercise can generally be considered as walking or light exercise, and the amount of exercise at this time usually does not reach the level that causes a person to sweat. High-intensity exercise such as ball games or jogging causes liquid sweat to form on the skin of the body.

[0031] From the table above, it can be seen that, under conditions where environmental factors remain unchanged, increasing the thermal resistance of the fabric is key to achieving high heat retention with a small basis weight and thickness of fabric, maintaining freshness on the inside of the fabric when sweating and achieving heat dissipation through rapid and effective evaporation, and quickly evaporating moisture from the fabric during the recovery period. Specific principle analysis: (1) Assuming that environmental conditions are constant and the thickness of the fabric is constant or decreases, the total amount of heat transferred by convection and conduction is almost constant, and in situations where the thickness decreases, conductive heat dissipation may increase further, so reducing heat dissipation, especially radiant heat dissipation from the fabric, is one feasible method. (2) At the same time, another approach is to enhance the heat retention effect by using energy conversion materials to absorb radiant energy from the environment and convert it into perceptible thermal energy. (3) When you sweat, moisture is contained in the fabric, and the presence of this liquid water destroys the original insulating properties of the fabric, lowering the thermal resistance and strengthening the heat dissipation effect. However, during the recovery phase after exercise has stopped, this property can conversely give a damp, cold feeling and a clinging sensation to the body, often leading to catching a cold. Therefore, the third key point is to accelerate sweat evaporation through different moisture conduction functions on both sides of the fabric and the resulting increase in temperature, further shortening the drying time of the fabric, thereby quickly reducing the amount of moisture in the fabric during the post-exercise recovery phase.

[0032] Therefore, as shown in Figure 1, the present invention provides a multi-scene heat and moisture comfort functional knitted fabric including a fabric body 1 applicable to multiple scenes, the fabric body 1 having a garment surface and a skin-contact surface, the fabric body containing at least two types of yarn including a first yarn Y1 and a second yarn Y2, one of which is a light-absorbing heat-generating yarn, the denier number of the first yarn Y1 is different from the denier number of the second yarn Y2, and is divided into a coarse yarn and a fine yarn, the coarse yarn and the fine yarn are D 粗 :D 細 ≥1.2, F 粗 :F 細 It has a structural relationship of ≤0.9, D 粗 D represents the denier number of the roving yarn. 細represents the denier count of the fine thread, F 粗 represents the number of filaments in the roving, F 細 The number of filaments in the fine thread represents the number of filaments in the fine thread. The fabric itself has a series of unit cycles made by weaving together coarse and fine threads, and the number of coarse and fine threads in one unit cycle is 2.0 ≥ m. 粗 :n 細 Arranged at proportional intervals of ≥0.3, and m 粗 ≤ 2.0, and n 細 represents the quantity of fine threads, m 粗 The number of rovings represents the quantity of coarse yarn, and the contact distance between the coarse yarn and the fine yarn is differentiated. The first yarn Y1 and the second yarn are knitted within the main body of the fabric to form a functional layer that absorbs radiant energy and converts it into thermal energy, thereby forming a fabric body that has thermal comfort performance that can absorb radiant energy and convert it into thermal energy, and differentiated moisture conduction capacity (OWTC) of more than 100% on both sides of the fabric in relation to liquid water. The light-absorbing heat-generating yarn can mainly absorb infrared radiation.

[0033] By weaving light-absorbing, heat-generating yarn into the fabric, the yarn receives infrared radiation from the external environment or the human body itself. Furthermore, because the yarns have different thicknesses, when sweat is present on the skin surface, the coarser yarns have more opportunities to come into contact with the liquid and transmit it, while the finer yarns have fewer opportunities to come into contact with the skin. Therefore, liquid water diffuses from the coarser yarns to the finer yarns. Since the liquid water on the garment surface evaporates together within the coarse and fine yarns, the evaporation of moisture in this structure differs on both sides of the fabric, resulting in a difference in the transfer of liquid water between the two sides of the fabric. Another advantage is that because the coarse yarns are separated by the fine yarns, water on the skin-contacting surface can diffuse through the fine yarns, thereby reducing the opportunities for the skin to come into contact with damp yarns and improving the feeling of freshness.

[0034] The ratio of the water transport capacity of the roving yarn to the water transport capacity of the fine yarn is LP 細 :LP 粗 The ratio is ≥ 1.2, and within this proportional limitation, the overall moisture transfer capacity can be ensured.

[0035] Regarding the specific structure of the fabric, the fabric itself has a weft-knit plain weave structure, the first yarn Y1 is a roving yarn and the first yarn Y1 is a light-absorbing heat-generating yarn, or the second yarn Y2 is a fine yarn and the second yarn Y2 is a light-absorbing heat-generating yarn.

[0036] Alternatively, the fabric body has a basic double-sided structure, where the tissue structure of the garment surface and the skin-contact surface of the fabric body is the same, the first yarn Y1 is a roving yarn, and the first yarn Y1 is a light-absorbing heat-generating yarn, and the light-absorbing heat-generating yarn as the first yarn Y1 is distributed on the garment surface and the skin-contact surface of the fabric body, or the second yarn Y2 is a fine yarn, and the second yarn Y2 is a light-absorbing heat-generating yarn, and the light-absorbing heat-generating yarn as the second yarn Y2 is distributed on the garment surface and the skin-contact surface of the fabric body.

[0037] Furthermore, the light-absorbing heat-generating yarn is a yarn obtained by adding a light-absorbing substance to acrylic, polyester, or nylon, etc., to acquire a light-absorbing heat-generating function, or a blended yarn of the above materials, preferably an infrared-absorbing heat-generating yarn and a full-spectrum light-absorbing heat-generating yarn. In order to ensure the heat-raising, heat-retention, and evaporation-accelerating effects of the light-absorbing heat-generating yarn in the final product, the coverage rate of the light-absorbing heat-generating yarn on the garment surface or skin-contact surface of the fabric body is greater than 20%, preferably 30%, or the content within the fabric body is greater than 10%, preferably greater than 25%. This makes it possible for the infrared light-absorbing heat-generating yarn to absorb radiant energy sufficiently and significantly within the fabric, and to convert the radiation into thermal energy to raise the temperature of the fabric.

[0038] In general, light-absorbing and heat-generating yarns can be distributed within the fabric itself, on the garment surface, or on the skin-contacting surface, or they can be present on different surfaces simultaneously. For innerwear, it is preferable to apply them to the inner surface, and for outerwear, to the outer surface, as this helps to more effectively absorb infrared radiation energy from the human body and the sun.

[0039] The material of the light-absorbing heat-generating yarn is acrylic, polyester, or nylon, etc., to which a light-absorbing substance has been added to obtain a light-absorbing heat-generating function, or a blended yarn of the above materials with other fibers or cotton, etc. Its characteristic is that, compared to a plain weave fabric made from ordinary polyester yarn of the same specifications, the average temperature of the fabric of the light-absorbing heat-generating yarn of the same specifications, when exposed to light for 20 minutes continuously according to the GB / T 18319-2019 standard, is at least 1.5°C higher than that of the polyester standard sample.

[0040] As a further measure, the garment surface and / or skin-contact surface of the fabric body is subjected to a hair-effect treatment by brushing, sanding, and fleecing to form a pile layer.

[0041] The above method limits the structural relationship between roving and fine yarns, and the relationship of the spacing between roving and fine yarns during knitting, using the basic weft-knit plain weave fabric structure as an example, and sets the number of roving and fine yarns within a single unit cyclic structure to 2.0 ≥ m. 粗 :n 粗 The elements are arranged at intervals of ≥0.3, and m 粗 ≤2.0, n 粗 The value is ≤ 6.0.

[0042] The ratio of the water transport capacity of the roving yarn to the water transport capacity of the fine yarn is LP 細 :LP 粗 ≥ 1.2 and D 粗 :D 細 ≥1.2, F 粗 :F 細 The ratio is ≤0.9. By limiting this specific ratio, it is possible to better control the transfer of liquid water within the fabric, reduce the concentration of moisture on the skin-contacting surface, and improve the feeling of freshness on the skin.

[0043] Furthermore, the specific knitting method for preparing a multi-scene heat- and moisture-wicking comfort functional knitted fabric includes the following steps.

[0044] The first yarn Y1 and the second yarn Y2, having different denier counts, are selected to form one type of roving yarn and one type of fine yarn, and either the first yarn Y1 or the second yarn Y2 is a light-absorbing heat-generating yarn. By knitting the first yarn Y1 and the second yarn Y2, a fabric body is formed that has thermal comfort performance capable of absorbing radiant energy and converting it into thermal energy, and differentiated moisture conduction capacity (OWTC) of 100% or more on both sides of the fabric in relation to liquid water, and the light-absorbing heat-generating yarn is distributed on the garment side or skin-contacting side of the fabric body.

[0045] The first thread Y1 and the second thread Y2 are D 粗 :D 細 ≥1.2, F 粗 :F 細 It has a corresponding structural relationship of ≤0.9, D 粗 D represents the denier number of the roving yarn. 細 represents the denier count of the fine thread, F 粗 represents the number of filaments in the roving, F 細 The number of filaments in the fine thread represents the number of filaments in the fine thread. The fabric itself has a series of unit cycles made by weaving together coarse and fine threads, and the number of coarse and fine threads in one unit cycle is 2.0 ≥ m. 粗 :n 細 Arranged at proportional intervals of ≥0.3, and m 粗 ≤ 2.0, and n 細 represents the quantity of fine threads, m 粗 This step involves representing the quantity of coarse yarn, differentiating the contact distance between the coarse yarn and the fine yarn with the outside based on the relative sizes of the coarse and fine yarns, and forming the fabric so that both sides of the fabric have differentiated moisture conduction capabilities.

[0046] The unidirectional moisture conduction capacity of the obtained fabric body is OWTC ≥ 100%, the liquid evaporation rate for synthetic fiber fabrics is ≥ 1.0 ml / hr, and the liquid evaporation rate for cellulose fiber blended fabrics is ≥ 0.5 ml / hr.

[0047] The following will provide specific examples to illustrate this point.

[0048] Example 1

[0049] As shown in Figures 2 and 3, the main body of the fabric is formed by knitting together a 75D / 30F polyester roving as the first yarn Y1 and a 50D / 60F polyester fine yarn as the second yarn Y2 to form a single-sided plain weave fabric. Of these, the fine yarn is a light-absorbing heat-generating yarn, while the roving yarn is a non-light-absorbing heat-generating yarn. The ratio of the moisture transfer capacity of the roving yarn to the moisture transfer capacity of the fine yarn is LP 細 :LP 粗 ≥ 1.2 and D 粗 :D 細 Since it = 1.5, the condition that it is greater than 1.2 is satisfied, F 粗 :F 細 Since it is =0.5, the condition that it is less than 0.9 is satisfied. The number of rovings and fine yarns in one unit cycle structure is 2.0 ≥ m. 粗 :n 細 They are arranged at proportional intervals of ≥0.3, and in this embodiment, m 粗 =1, n 細 With a value of 1, the fabric body is formed that possesses multi-scene thermal comfort performance and differentiated moisture conduction capacity (OWTC) of more than 100% on both sides of the fabric in relation to liquid water. At this time, the content of light-absorbing heat-generating yarn (fine yarn, i.e., second yarn Y2) in the fabric body is 72%, and the light-absorbing heat-generating yarn is simultaneously distributed on the garment surface and the skin-contact surface, with a coverage rate of 52% for both the garment surface and the skin-contact surface.

[0050] The following is a comparison of heat storage tests performed by continuously irradiating with light for 20 minutes, referring to the GB / T 18319-2019 standard.

[0051] Comparative sample: This fabric has a plain weave weft knit structure and is knitted using polyester 75D / 30F roving yarn for both the first yarn Y1 and the second yarn Y2. The heat retention test data for this comparative sample is shown in Table 2.

[0052] Table 2 JPEG0007863172000002.jpg62170

[0053] The heat storage test data for Example 1 of this application are shown in Table 3.

[0054] Table 3 JPEG0007863172000003.jpg63170

[0055] From the experimental data above, the performance of the yarn was first determined using a plain weave weft knit structure. When compared with a plain weave fabric made from ordinary polyester yarn of the same specifications, the average temperature of the light-absorbing heat-generating yarn fabric of the same specifications, when continuously irradiated with light for 20 minutes according to the GB / T 18319-2019 standard, was 2.5°C higher than the temperature of the polyester reference sample, thus meeting the requirement of being at least 1.5°C higher.

[0056] Light-absorbing heat-generating yarn can receive light radiation from the environment and the human body, whether it is on the skin-contacting side of the fabric or on the garment side. The fabric itself absorbs the radiant energy and converts it into thermal energy, while simultaneously using the generated thermal energy to raise the surface temperature of the fabric, thereby increasing evaporation efficiency and achieving the quick-drying function.

[0057] At the same time, because the threads have different thicknesses, when sweat is present on the skin surface, the coarse threads have more opportunities to come into contact with the liquid and transmit it, while the fine threads have fewer opportunities to come into contact with the skin. Therefore, liquid water diffuses from the coarse threads to the fine threads. Since the liquid water on the surface of the fabric evaporates together within the coarse and fine threads, the evaporation of moisture in this structure differs on both sides of the fabric, resulting in a difference in the transmission of liquid water between the two sides of the fabric. Another advantage is that because the coarse threads are separated by the fine threads, the water on the skin-contacting side needs to diffuse through the fine threads, which reduces the opportunities for the skin to come into contact with damp threads, improving the feeling of freshness and achieving differentiated transmission of liquid water on both sides of the fabric, as well as quick-drying functionality.

[0058] In this example, the knitted fabric was measured according to the standard AATCC 195 "Liquid Moisture Management Properties of Textile Fabrics". The one-way transport capability (OWTC) of the fabric measured in this study was 205%.

[0059] In this example, the liquid water evaporation rate of the knitted fabric was measured according to standard AATCC 201 and was 1.32 ml / hr.

[0060] Example 2

[0061] As shown in Figure 4, the main fabric is a double-sided plain weave fabric formed by knitting together a 50D / 48F polyester roving as the first yarn Y1 and a 40D / 72F polyester fine yarn as the second yarn Y2. The fine yarn uses a light-absorbing, heat-generating yarn. In this example, the ratio of the moisture transfer capacity of the roving yarn to the moisture transfer capacity of the fine yarn is LP 細 :LP 粗 ≥ 1.2 and D 粗 :D 細 = 1.25, F 粗 :F 細 = 0.667, so all are within the limiting conditions. The number of rovings and fine yarns in one unit cycle structure is 2.0 ≥ m. 粗 :n 細 They are arranged at proportional intervals of ≥0.3, and in this embodiment, m 粗 =1, n 細 With a value of 1, the fabric body is formed that possesses thermal comfort performance and differentiated moisture conduction capacity (OWTC) of more than 100% on both sides of the fabric in relation to liquid water. At this time, the content of light-absorbing heat-generating yarn in the fabric body is 68%, and the light-absorbing heat-generating yarn is distributed on both the garment side and the skin-contacting side of the fabric body, with a coverage rate of 48% in both cases.

[0062] In this example, the knitted fabric was measured according to standard AATCC 195, "Liquid Moisture Management Properties of Textile Fabrics." The one-way transport capability (OWTC) of the fabric measured in this study was 270%. In this example, when the knitted fabric was measured according to standard AATCC 201, its liquid water evaporation rate was 1.21 ml / hr.

[0063] Similarly, a comparison of 20-minute heat storage tests was conducted, referring to the GB / T 18319-2019 standard. Light-absorbing heat-generating yarn can receive light radiation from the environment or the human body itself, whether on the skin-contacting side of the fabric or the garment side. The fabric itself absorbs radiant energy and converts it into thermal energy, and at the same time uses the generated thermal energy to raise the temperature of the fabric surface. Therefore, compared to a plain weave fabric made with ordinary polyester yarn of the same standard, the fabric of the same standard light-absorbing heat-generating yarn has an average temperature of at least 1.5°C higher over 20 minutes according to the GB / T 18319-2019 standard compared to the polyester standard sample.

[0064] As described above, the fabric itself has the following different functions during the wearing process. Specifically, during low metabolic stages, it reduces heat dissipation in the form of radiation and converts it into thermal energy to enhance the heat retention effect per unit thickness of the fabric. During high metabolic stages, the difference in moisture conduction of the fabric makes it easier to expel sweat from the body surface to the outer surface of the fabric, improving the refreshing feeling on the inside of the fabric and increasing the rate of evaporation of liquid water. During the post-exercise recovery stage, by utilizing the difference in moisture conduction and the rise in fabric temperature, it further helps to shorten the drying process of the fabric and reduce the cold, damp discomfort after exercise.

[0065] It should be explained that the above is a preferred embodiment of the present invention and is not intended to limit the invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art may modify the technical methods described in the above embodiments or make equivalent substitutions for some of the technical features therein. However, all modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. In a multi-scene heat and moisture comfort functional knitted fabric including a fabric body having a garment surface and a skin-contact surface, the fabric body comprises at least two types of yarn, (1) first yarn Y １ and (2) Second thread Y ２ It includes, and one of the threads is a light-absorbing heat-generating thread, the denier number of the first thread is different from the denier number of the second thread, and it is divided into a coarse thread and a fine thread, and the coarse thread and the fine thread contain D 粗 : D 細 ≥ 1.2, F 粗 : F 細 A yarn with a diameter of ≤0.9 is used, and the coarse yarn and fine yarn in a single unit cyclic structure are arranged at a proportional interval of 2.0 ≥ m coarse : n fine ≥ 0.3, and m 粗 ≤ 2.0, n 細 A multi-scene thermal and moisture-comfortable functional knitted fabric characterized by being knitted as the main body of a quick-drying fabric having thermal comfort performance that can absorb radiant energy and convert it into thermal energy, and a unidirectional moisture conduction capacity (OWTC) of 100% or more that is differentiated on both sides of the fabric when it is liquid water, where ≤ 6.0, and where m is a yarn with a high denier number and n is a yarn with a low denier number, and having a thermal comfort performance that can absorb radiant energy and convert it into thermal energy, and a unidirectional moisture conduction capacity (OWTC) of 100% or more that is differentiated on both sides of the fabric when it comes to liquid water.

2. The ratio of the yarn moisture transfer ability of the thick yarn to the yarn moisture transfer ability of the fine yarn is LP 細 : LP 粗 The multi-scene thermo-hygro comfort functional woven fabric according to claim 1, characterized in that it is ≧ 1.2

3. A plain weave structure with weft knitting, wherein the first yarn Y １ It is a coarse yarn, and m 粗 Either a light-absorbing heat-generating yarn is used, or the second yarn Y ２ is a fine thread, and n 細 The multi-scene heat- and moisture-regulating comfortable knitted fabric according to claim 1 or claim 2, characterized in that it employs light-absorbing heat-generating yarn.

4. The base has a double-sided structure, and the first thread Y １ It is a coarse yarn, and m 粗 The light-absorbing heat-generating yarn is used, and the light-absorbing heat-generating yarn is distributed on the garment surface and the skin-contact surface of the fabric body, or the second yarn Y ２ is a fine thread, and n 細 The multi-scene heat- and moisture-regulating comfortable knitted fabric according to claim 1 or claim 2, characterized in that a light-absorbing heat-generating yarn is used, and the light-absorbing heat-generating yarn is distributed on the garment surface and the skin-contact surface of the fabric body.

5. The multi-scene heat- and moisture-regulating comfortable knitted fabric according to any one of claims 1 to 4, characterized in that the content of the light-absorbing heat-generating yarn in the fabric exceeds 10%, and preferably exceeds 25%.

6. The multi-scene heat- and moisture-regulating comfortable knitted fabric according to claim 5, characterized in that the light-absorbing heat-generating yarn is located on the garment-facing or skin-contacting surface of the fabric body, and its coverage rate exceeds 20%, preferably exceeding 30% in the fabric coverage rate of the light-absorbing heat-generating yarn.

7. The multi-scene heat- and moisture-regulating comfortable knitted fabric according to any one of claims 1 to 6, characterized in that the light-absorbing heat-generating yarn is a yarn in which a light-absorbing substance is added to acrylic, polyester, or nylon to impart a light-absorbing heat-generating function, or a blended yarn of the above materials.

8. The multi-scene heat- and moisture-regulating functional knitted fabric according to claim 1 or 7, characterized in that at least one surface of the fabric body is subjected to a hair-effect treatment by brushing, sanding, and fleecing to improve the heat retention properties and feel of the fabric.

9. The multi-scene thermal and humid comfort functional knitted fabric according to claim 1 or claim 7, wherein its unidirectional moisture conduction capacity is OWTC ≥ 100% (AATCC 195, GB21655.2), the liquid evaporation rate for synthetic fiber fabrics is ≥ 1.0 ml / hr, and the liquid evaporation rate for cellulose fiber blended fabrics is ≥ 0.5 ml / hr (AATCC 201).

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