Comfortable flash-dry fabric and preparation method thereof

Abstract

The invention provides a comfortable flash-dry fabric and a preparation method thereof. The comfortable flash-dry fabric comprises first yarns and second yarns, the first yarns are core-spun yarns, and the outer wrapping fibers are parallel composite fibers which have peanut-shaped cross sections, have heating performance and deform under the stimulation of external heat and humidity; and the second yarns comprise elastic polyester fibers. According to the comfortable quick-drying fabric, the moisture absorption and quick-drying effects can be effectively achieved in different hot and humid environments by means of the capability of intelligently adjusting fabric pores and the moisture guiding performance of the comfortable quick-drying fabric. Meanwhile, the fabric also has good elasticity and skin smoothness, so that excellent comfortable experience is brought to a wearer.

Description

[0001] Priority information This application claims priority and benefits to patent application No. 2025101267056, filed with the China National Intellectual Property Administration on January 27, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of textile materials technology. Specifically, this application relates to comfortable flash-drying fabrics and methods for preparing the same. Background Technology

[0003] As people's living standards steadily improve, the importance of exercise in building a healthy physique and enhancing quality of life is becoming increasingly prominent. This has prompted consumers to demand higher functionality from clothing worn close to the skin, such as sportswear and underwear. Especially during high-intensity exercise, if the large amount of sweat secreted by the body cannot be quickly dissipated, it can cause significant discomfort. Therefore, the market demand for functional clothing that can effectively solve this problem is constantly rising.

[0004] Conventional quick-drying products, in humid and hot conditions, suffer from a water film formed by sweat, which clogs the fabric's pores and significantly reduces the garment's breathability. To improve breathability in humid and hot conditions, weaving techniques are typically used to create various mesh shapes in the fabric, or one-way moisture wicking is employed to allow for rapid evaporation and achieve comfort. However, elaborate fabric designs and a tendency to create condensation spots mean that after strenuous exercise and heavy sweating, the fabric's pores cannot change, preventing the sweat from evaporating quickly enough and still impacting comfort.

[0005] Therefore, existing wet-heat quick-drying fabrics still require further research. Summary of the Invention

[0006] This application aims to at least partially address the technical problems existing in the prior art. To this end, this application proposes a comfortable quick-drying fabric and its preparation method. This comfortable quick-drying fabric utilizes its ability to intelligently adjust fabric pores and its moisture-wicking properties to effectively achieve moisture absorption and quick-drying effects under different heat and humidity environments. Simultaneously, the fabric also possesses good elasticity and skin-friendly smoothness, thus providing the wearer with an excellent comfort experience.

[0007] In a first aspect of this application, a comfortable flash-drying fabric is proposed. According to an embodiment of this application, the comfortable flash-drying fabric includes a first yarn and a second yarn; the first yarn is a core-spun yarn, and the outer fibers are parallel composite fibers with a peanut-shaped cross-section, heat-generating properties, and deformation under external heat and humidity stimulation; the second yarn includes elastic polyester fibers.

[0008] In this application's comfortable quick-drying fabric, the difference in the amount of moisture expansion and thermal expansion deformation caused by external heat and humidity stimulation, achieved by parallel composite fibers with heat-generating properties and deformation in response to external heat and humidity stimulation, is used to regulate the fabric's pores. Under humid and hot conditions, the fabric's pores can open, preventing the fabric from being affected by a water film, thus maintaining good breathability even in humid and hot conditions, and allowing moisture and heat to be quickly dissipated. Under dry and cold conditions, the fabric's pores can close, reducing heat and moisture loss. Therefore, in environments switching between cold / hot and dry / humid conditions, the intelligent regulation of the fabric's pores can maintain continuous comfort for the human body.

[0009] However, fabrics woven solely from the first yarn suffer from insufficient elasticity, which reduces the fabric's fit and comfort, restricts freedom of movement, and creates a feeling of tightness or constraint, negatively impacting the wearing experience. To address this issue, this application combines elastic fibers with the first yarn to enhance fabric elasticity. However, not all elastic fibers are suitable; for example, spandex's excessive elasticity and shrinkage can reduce the heat and moisture regulation function of the first yarn. In contrast, weaving elastic polyester fibers in combination with the first yarn not only improves fabric elasticity and ensures a smooth, skin-friendly feel but also provides moisture-wicking properties, resulting in better heat and moisture regulation and quick-drying effects.

[0010] According to embodiments of this application, the comfortable flash-drying fabric may also have the following additional technical features: According to embodiments of this application, the elastic polyester fiber includes at least one of polypropylene terephthalate and polybutylene terephthalate, preferably Sorona.

[0011] According to an embodiment of this application, the first yarn content in the comfortable flash-dry fabric is greater than the second yarn content.

[0012] According to an embodiment of this application, the content of the first yarn in the comfortable flash-drying fabric is 55% to 75%, and the content of the second yarn in the comfortable flash-drying fabric is 25% to 45%.

[0013] According to an embodiment of this application, the denier number of the first yarn is 50 D to 150 D.

[0014] According to an embodiment of this application, the filament number of the first yarn is 36 F to 144 F.

[0015] According to an embodiment of this application, the denier number of the second yarn is 30 D to 70 D.

[0016] According to an embodiment of this application, the filament number of the second yarn is 48 F to 72 F.

[0017] According to an embodiment of this application, the core yarn of the core-spun yarn is a synthetic fiber filament.

[0018] According to an embodiment of this application, the comfortable flash-drying fabric is a double-layer fabric, wherein the first layer is woven from a first yarn and the second layer is woven from a second yarn.

[0019] According to an embodiment of this application, the comfortable flash-dry fabric is a rib knit.

[0020] In another aspect of this application, a method for preparing the aforementioned comfortable flash-dry fabric is proposed. According to an embodiment of this application, the method includes: weaving the first yarn and the second yarn to obtain the comfortable flash-dry fabric.

[0021] According to an embodiment of this application, the knitting includes: knitting loops in rows 1 and 3, and knitting loops in rows 2, 4, 6, 8, 10 and 12; knitting loops in rows 5, 7, 9 and 11; and 2 needles in 12 rows form a complete cycle; wherein the knitting needles are made of the first yarn and the knitting needles are made of the second yarn.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

[0026] In this document, the terms “comprising” or “including” are open-ended expressions, meaning that they include the contents specified in this invention, but do not exclude other aspects.

[0027] This application proposes a comfortable flash-drying fabric and its preparation method, which will be described in detail below.

[0028] Comfortable flash-drying fabric In one aspect of this application, a comfortable flash-drying fabric is proposed. According to an embodiment of this application, the comfortable flash-drying fabric includes a first yarn and a second yarn; the first yarn is a core-spun yarn, and the outer fibers are parallel composite fibers with a peanut-shaped cross-section, heat-generating properties, and deformation under external heat and humidity stimulation; the second yarn includes elastic polyester fibers.

[0029] The first yarn of the comfortable quick-drying fabric in this application is a core-spun yarn, which consists of a core yarn and an outer layer fiber (also known as a heat- and moisture-responsive fiber). This outer layer is a peanut-shaped cross-section composite fiber obtained by spinning through a parallel spinning assembly. This composite fiber is composed of fibers with low and high coefficients of thermal expansion. The difference in moisture expansion and thermal expansion deformation caused by external heat and moisture stimuli, due to the low and high coefficients of thermal expansion of the parallel composite fiber, is utilized to adjust the fabric's pores. In hot and humid conditions, the fabric pores can open, preventing the fabric from being affected by a water film, thus maintaining good breathability even in hot and humid conditions, and allowing moisture and heat to be quickly expelled. In dry and cold conditions, the fabric pores can close, reducing heat and moisture loss. Therefore, in environments switching between hot / cold and dry / humid conditions, the intelligent adjustment of the fabric pores can maintain continuous comfort for the human body.

[0030] However, fabrics woven solely from the first yarn suffer from insufficient elasticity, which reduces the fabric's fit and comfort, restricts freedom of movement, and creates a feeling of tightness or constraint, negatively impacting the wearing experience. To address this issue, this application combines elastic fibers with the first yarn to enhance fabric elasticity. However, not all elastic fibers are suitable; for example, spandex's excessive elasticity and shrinkage can reduce the heat and moisture regulation function of the first yarn. In contrast, weaving elastic polyester fibers in combination with the first yarn not only improves fabric elasticity and ensures a smooth, skin-friendly feel but also provides moisture-wicking properties, resulting in better heat and moisture regulation and quick-drying effects.

[0031] According to embodiments of this application, the elastic polyester fiber includes at least one of polypropylene terephthalate and polybutylene terephthalate. This elastic polyester fiber not only enhances fabric elasticity and ensures a smooth, skin-friendly feel, but also possesses moisture-wicking properties, enabling the fabric to achieve better quick-drying while maintaining heat and moisture regulation. Sorona is particularly effective; it is a material made primarily of 1,3-propanediol (PDO) and PTA (or DMT), which imparts a soft hand feel, comfortable stretch and resilience to the fabric, without hindering the heat and moisture regulation capabilities of the first yarn, and also possesses moisture-wicking properties to allow the fabric to quickly wick away moisture and dry.

[0032] According to embodiments of this application, the first yarn content in the comfortable flash-dry fabric is greater than the second yarn content. This improves both the fabric's breathability in wet conditions and its elasticity, thereby enhancing overall comfort.

[0033] According to embodiments of this application, the content of the first yarn in the comfortable quick-drying fabric is 55%~75%, for example 55%, 60%, 65%, 70%, 75%, and the content of the second yarn in the comfortable quick-drying fabric is 45%~25%, for example 45%, 40%, 35%, 30%, 25%, specifically by weight. Therefore, the comfortable quick-drying fabric has both good hand feel and elasticity, as well as good quick-drying and moisture-wicking breathability.

[0034] According to embodiments of this application, the denier number of the first yarn is 50 D to 150 D, for example, 50 D, 60 D, 70 D, 80 D, 90 D, 100 D, 110 D, 120 D, 130 D, 140 D, and 150 D. Thus, while ensuring the fabric has good thermal and moisture breathability and softness, it can also maintain sufficient strength and abrasion resistance.

[0035] According to embodiments of this application, the filament number of the first yarn is 36 F to 144 F, for example, 36 F, 40 F, 50 F, 60 F, 80 F, 100 F, 120 F, 140 F, and 144 F. This improves the uniformity and consistency of the yarn, resulting in a smooth fabric surface, clear texture, and enhanced appearance quality.

[0036] According to embodiments of this application, the denier number of the second yarn is 30 D to 70 D, for example, 30 D, 40 D, 50 D, 60 D, or 70 D. Denier number is an indicator of yarn fineness; a lower denier number indicates a finer yarn, and a higher denier number indicates a coarser yarn. Using a second yarn with the aforementioned denier number can give the fabric advantages such as better softness, breathability, elasticity, and durability.

[0037] According to embodiments of this application, the filament number of the second yarn is 48 F to 72 F, for example, 48 F, 50 F, 55 F, 60 F, 65 F, 70 F, and 72 F. Therefore, the second yarn has good uniformity and consistency, resulting in a smoother fabric surface, clearer texture, and improved appearance quality. Simultaneously, this yarn is more stable during weaving, reducing fuzz and broken filaments, and enhancing the fabric's durability and pilling resistance.

[0038] According to an embodiment of this application, the core yarn of the core-spun yarn is a synthetic fiber filament. Exemplarily, the synthetic fiber filament is any one of polyester filament, nylon filament, or spandex filament.

[0039] According to embodiments of this application, the parallel composite fiber is composed of hydrophilic antibacterial fiber and hydrophobic photothermal conversion fiber, wherein the diameter ratio of the hydrophilic fiber to the hydrophobic photothermal conversion fiber is 2.5:1 to 1:2.5. By changing the diameter difference between the two components, the asymmetric structure of the fiber is altered, thereby controlling the amount of heat deformation or moisture absorption deformation, and thus controlling the amount of bending deformation, resulting in intelligent heat and moisture driven core-spun yarns of different specifications.

[0040] According to an embodiment of this application, the mass ratio of the synthetic fiber filament to the heat and moisture responsive fiber is 50:50 to 10:90; the fineness of the synthetic fiber filament is 30 to 120 dtex; the fineness of the heat and moisture responsive fiber is 16 to 40 dtex; and the fineness of the intelligent heat and moisture driven core-spun yarn is 16 to 80 tex.

[0041] According to embodiments of this application, the hydrophilic fiber comprises a hydrophilic polymer, and the hydrophobic photothermal conversion fiber comprises a hydrophobic modified polymer and a powder having photothermal conversion properties, wherein the hydrophobic modified polymer is obtained by chemical grafting or copolymerization modification of the hydrophilic polymer. Alternatively, the hydrophilic fiber may include a hydrophilic modified polymer, and the hydrophobic photothermal conversion fiber may include a hydrophobic polymer and a powder having photothermal conversion properties, wherein the hydrophilic modified polymer is obtained by physical blending or chemical copolymerization of the hydrophobic polymer.

[0042] This application utilizes the structural similarity of the polymers in the two components to improve the adhesion between the two spinning components at the interface, making the parallel fibers easier to form and reducing the difficulty of spinning. Furthermore, the polymer obtained through self-hydrophilic or hydrophobic modification has little change in its coefficient of thermal expansion or coefficient of moisture expansion compared to the unmodified polymer. When there is a significant difference in the amount of light and heat adsorption or moisture absorption, a significant difference in deformation will occur, thereby driving bending deformation movement, which improves the tightness of the wrapping of the core yarn, accelerates the dissipation of moisture and heat, and enhances the moisture absorption and quick-drying function.

[0043] According to embodiments of this application, the hydrophobic polymer is polyethylene terephthalate; the hydrophilic modified polymer is obtained by chemical copolymerization of terephthalic acid, ethylene glycol, polyethylene glycol and 1,2-butanediol.

[0044] According to an embodiment of this application, the hydrophilic polymer is polyvinyl alcohol.

[0045] According to an embodiment of this application, the hydrophobically modified polymer is obtained by side-linking and branching polymerization of polyvinyl alcohol and fluorinated acrylic monomers via microwave-assisted synthesis.

[0046] According to embodiments of this application, the powder with photothermal conversion properties is at least one of zirconium carbide powder, cobalt carbide powder, molybdenum carbide powder, magnesium carbide powder, and far-infrared ceramic powder.

[0047] According to an embodiment of this application, the weight fraction of the powder having photothermal conversion properties is 0.1 wt% to 1 wt% of the hydrophobic polymer or the hydrophobic modified polymer.

[0048] The comfortable quick-drying fabric of this application can be either a single-layer or double-layer fabric. This invention uses two types of yarn to create a double-sided fabric. Compared to using only a single-layer fabric made with a heat- and moisture-regulating yarn, it not only achieves comfortable quick-drying performance but also has better elasticity to meet customer needs. According to an embodiment of this application, the first layer of the double-layer fabric is woven from a first yarn, and the second layer is woven from a second yarn. The first yarn is the skin-contact side, which is highly smooth, comfortable, and soft, and also has heat and moisture regulation functions. The second yarn is on the outside, forming a moisture-wicking structure. During movement, it allows moisture to pass through while utilizing the moisture-wicking properties of the two-component quick-drying fibers to allow the fabric to quickly wick away moisture and dry.

[0049] According to an embodiment of this application, the comfortable quick-drying fabric is a rib knit. The lower section is entirely made of the first yarn, forming a flat knit; the upper section uses a jacquard knit with needles, creating a perforated effect. This combination of different knit styles ensures the fabric's smoothness against the skin, maintains its breathability while absorbing moisture, and significantly increases its surface area due to the perforated knit, thus enhancing its quick-drying properties.

[0050] Methods for preparing comfortable flash-drying fabrics In another aspect of this application, a method for preparing the aforementioned comfortable quick-drying fabric is proposed. According to an embodiment of this application, the method includes: weaving the first yarn and the second yarn to obtain the comfortable quick-drying fabric. Thus, the comfortable quick-drying fabric prepared using the method of this application can achieve moisture-wicking and quick-drying effects under different heat and humidity conditions by intelligently adjusting the fabric pores and its unique moisture-wicking properties, while also possessing elasticity and skin-friendly smoothness, resulting in excellent comfort.

[0051] According to an embodiment of this application, the knitting includes: knitting loops in rows 1 and 3, followed by knitting loops in rows 2, 4, 6, 8, 10, and 12; knitting loops in rows 5, 7, 9, and 11; and 2 needles forming 12 rows to create a complete cycle. The knitting needles use the first yarn, and the knitting needles use the second yarn. As a result, the knitted fabric has excellent heat and moisture drying properties, while also possessing elasticity and a smooth, skin-friendly finish, providing exceptional comfort.

[0052] According to embodiments of this application, a method for preparing a first yarn includes: using a hydrophilic polymer as a hydrophilic spinning component; melt-blending a hydrophobically modified polymer (obtained by hydrophobic modification of the hydrophilic polymer) with a powder having photothermal conversion properties as a hydrophobic spinning component; or melt-blending a hydrophobic polymer with a powder having photothermal conversion properties as a hydrophobic spinning component, and using a hydrophilically modified polymer (obtained by hydrophilic modification of the hydrophobic polymer) as a hydrophilic spinning component. Then, a parallel spinning assembly is used for melt spinning to obtain an outer layer fiber. The outer layer fiber and synthetic fiber filaments are then processed through drawing, roving, and spinning processes to obtain a first yarn with heat and moisture regulation capabilities. This application utilizes the similarity between the two spinning components of the outer layer fiber to improve the adhesion between the two spinning components at the interface, thereby preparing a parallel composite fiber with strong interfacial adhesion.

[0053] It should be noted that the characteristics and advantages described above for the comfort flash-dry fabric also apply to the method for preparing the comfort flash-dry fabric, and will not be repeated here.

[0054] The present invention will be explained below with reference to embodiments. Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be considered as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed according to the techniques or conditions described in the literature in the field or according to the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be obtained commercially.

[0055] Example 1 In this embodiment, the comfortable flash-drying fabric is prepared according to the following method: 1. Prepare intelligent heat and moisture driven core-spun yarn according to the method of Example 1 in CN111041636A, and use it as the first yarn; 2. Use intelligent heat and moisture driven core-spun yarn as the first yarn, with a denier of 50 D and a filament count of 48 F. Use Sorona as the second yarn to knit a rib structure, with a denier of 30 D and a filament count of 48 F. Knit the first and second yarns into a rib structure, using the first yarn for the purl stitches and the second yarn for the knit stitches, as follows: Stitch the first and third rows in a circle, then gather the knitted stitches into a circle; Knit in circles using stitches 2, 4, 6, 8, 10, and 12; The needles on the 5th, 7th, 9th and 11th rows form circles; Two needles and 12 channels form a complete cycle.

[0056] In the woven comfortable flash-dry fabric, the first yarn content is 55% and the second yarn content is 45%.

[0057] Examples 2-5 The comfortable flash-dry fabric was prepared according to the method of Example 1, except that the content of the first yarn and the second yarn in the comfortable flash-dry fabric is shown in Table 1.

[0058] Table 1 Content of First Yarn and Second Yarn

[0059] Example 6 In this embodiment, the comfortable flash-drying fabric is prepared according to the following method: 1. Prepare intelligent heat and moisture driven core-spun yarn according to the method of Example 1 in CN111041636A, and use it as the first yarn; 2. Use intelligent heat and moisture driven core-spun yarn as the first yarn, with a denier of 75 D and a filament count of 48 F. Use Sorona as the second yarn to knit a rib structure, with a denier of 30 D and a filament count of 48 F. Knit the first and second yarns into a rib structure, using the first yarn for the purl stitches and the second yarn for the knit stitches, as follows: Stitch the first and third rows in a circle, then gather the knitted stitches into a circle; Knit in circles using stitches 2, 4, 6, 8, 10, and 12; The needles on the 5th, 7th, 9th and 11th rows form circles; Two needles and 12 channels form a complete cycle.

[0060] In the woven comfortable flash-dry fabric, the first yarn content is 55% and the second yarn content is 45%.

[0061] Comparative Example 1 The comfortable flash-drying fabric was prepared according to the method of Example 1, except that the second yarn was replaced with spandex.

[0062] Comparative Example 2 The comfortable flash-drying fabric was prepared according to the method of Example 1, except that the first yarn was replaced with conventional polyester.

[0063] Test case The performance of the comfortable flash-drying fabrics prepared in Examples 1-6 and Comparative Examples 1 and 2 were tested, and the test contents are as follows: 1. Air permeability test under different moisture absorption capacities Test method: The fabric was thoroughly dried in an environment of 60℃. The air permeability of the fabric was tested in the dry state (0% moisture absorption), and at moisture absorption rates of 30%, 50%, and 100%.

[0064] The results are shown in Table 2. The table shows that the introduction of the first yarn improves the basic breathability and moisture-wicking breathability of the fabric. Furthermore, as the proportion of the first yarn increases, the moisture-wicking breathability of the fabric becomes even better. In addition, Comparative Example 1 shows that after replacing the second yarn with spandex, the breathability of the fabric decreases with increasing moisture absorption. This is because the excessive elasticity of spandex restricts the deformation ability of the first yarn after being subjected to heat and moisture stimulation, causing the moisture to form a water film on the fabric surface after absorption, thus reducing its breathability. Comparative Example 2 shows that after replacing the first yarn with conventional polyester yarn, the breathability of the fabric significantly decreases with increasing moisture absorption, further proving that the first yarn is beneficial for increasing breathability.

[0065] Table 2 Breathability Test

[0066] 2. Thermal resistance test under different moisture absorption capacities Test method: Fabrics with different moisture absorption capacities were tested according to the test method of national standard GB / T 11048-2008.

[0067] The results are shown in Table 3. The table shows that the introduction of the first yarn effectively reduces the thermal resistance of the fabric, and the thermal resistance decreases as the proportion of the first yarn increases. Furthermore, as seen in Comparative Example 1, similar to the air permeability test results, replacing the second yarn with spandex reduces the thermal resistance of the fabric with increasing moisture absorption. This is because the excessive elasticity of spandex restricts the deformation ability of the first yarn after being subjected to heat and moisture stimulation, causing the moisture to form a water film on the fabric surface after absorption, making heat transfer difficult. Comparative Example 2 shows that replacing the first yarn with conventional polyester yarn significantly reduces the thermal resistance of the fabric with increasing moisture absorption, further demonstrating that the first yarn is beneficial in reducing the thermal resistance of the fabric.

[0068] Table 3 Thermal resistance test

[0069] 3. Moisture absorption and quick-drying test Test method: The test method shall be carried out in accordance with the national standard GB / T21655.1-2023.

[0070] The results are shown in Table 4. The table shows that the introduction of the first yarn effectively improves the fabric's moisture absorption and quick-drying properties, and the moisture absorption and quick-drying properties improve with increasing proportion of the first yarn. Replacing the second yarn with spandex reduced the fabric's moisture absorption and quick-drying properties, indicating that excessive spandex elasticity affects the fabric's moisture absorption and quick-drying performance. Comparative Example 2 shows that replacing the first yarn with conventional polyester yarn significantly reduced the fabric's moisture absorption and quick-drying properties, further demonstrating that the first yarn helps reduce the fabric's thermal resistance.

[0071] Table 4. Moisture Absorption and Quick-Drying Test

[0072] 4. Fabric stiffness test Test method: The test method shall be carried out in accordance with the national standard GB / T 18318.1-2009.

[0073] The results are shown in Table 5. The table shows that the introduction of the first yarn effectively improves the fabric's softness, and the softness increases with the proportion of the second yarn. Comparative Example 1 shows that replacing the second yarn with spandex has little impact on the fabric's softness because Sorona and spandex have similar rigidity. Comparative Example 2 shows that replacing the first yarn with conventional polyester yarn significantly reduces the fabric's softness, demonstrating that the first yarn is softer than conventional polyester yarn and thus helps improve the fabric's softness.

[0074] Table 5 Fabric Stiffness Test

[0075] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A comfortable flash-dry fabric, characterized in that, Including the first yarn and the second yarn; The first yarn is a core-spun yarn, and the outer fiber is a peanut-shaped cross-section, which has heat-generating properties and deforms under external heat and humidity stimulation; The second yarn comprises elastic polyester fibers.

2. The comfortable flash-drying fabric according to claim 1, characterized in that, The elastic polyester fiber includes at least one of polypropylene terephthalate and polybutylene terephthalate, preferably Sorona.

3. The comfortable flash-drying fabric according to claim 1, characterized in that, The first yarn content in the comfortable flash-dry fabric is greater than the second yarn content.

4. The comfortable flash-drying fabric according to claim 1 or 3, characterized in that, The content of the first yarn in the comfortable flash-drying fabric is 55%~75%, and the content of the second yarn in the comfortable flash-drying fabric is 25%~45%.

5. The comfortable flash-drying fabric according to claim 1, characterized in that, The denier number of the first yarn is 50D~150D; And / or, the filament number of the first yarn is 36 F to 144 F; And / or, the denier number of the second yarn is 30 D to 70 D; And / or, the number of filaments in the second yarn is 48 F ~ 72 F.

6. The comfortable flash-drying fabric according to claim 1, characterized in that, The core yarn of the core-spun yarn is a synthetic fiber filament.

7. The comfortable flash-dry fabric according to claim 1, characterized in that, The comfortable flash-drying fabric is a double-layered fabric, wherein the first layer is woven from a first yarn and the second layer is woven from a second yarn.

8. The comfortable flash-dry fabric according to claim 1, characterized in that, The comfortable flash-dry fabric has a rib knit.

9. A method for preparing the comfortable flash-drying fabric according to any one of claims 1 to 8, characterized in that, include: The first yarn and the second yarn are woven together to obtain the comfortable flash-dry fabric.

10. The method according to claim 9, characterized in that, The weaving includes: Stitch the first and third rows in a circle, then gather the knitted stitches into a circle; Knit in circles using stitches 2, 4, 6, 8, 10, and 12; The needles on the 5th, 7th, 9th and 11th rows form circles; Two needles and 12 channels form a complete cycle; The upper needle uses the first yarn, and the lower needle uses the second yarn.

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