One-way moisture-wicking fabric and preparation method thereof

Abstract

The present invention discloses a method for preparing a one-way moisture-wicking fabric, comprising the following steps: A. weaving a grey fabric using a sandwich weave; B. sequentially subjecting the grey fabric to a loosening process and a dry fabric setting process to obtain an intermediate grey fabric; C. sequentially subjecting the intermediate grey fabric to a boiling and bleaching process, a washing process, a neutralization process, and a dyeing process to obtain a dyed grey fabric; D. sequentially subjecting the dyed grey fabric to a water washing and drying process, a shaping and softening process, and a setting and heating process to obtain a one-way moisture-wicking fabric. The method for preparing a one-way moisture-wicking fabric proposed in the present invention ensures that the resulting one-way moisture-wicking fabric not only has both perspiration-wicking and warmth-retaining properties, but also effectively solves the technical problems of perspiration visibility and wearing discomfort.

Description

Technical Field

[0001] The present invention relates to the technical field of textile fabrics, and in particular to a one-way moisture-conducting and perspiration-wicking fabric and a preparation method thereof. Background Art

[0002] With the increasingly accelerated pace of modern life and the significantly enhanced awareness of fitness, sportswear has become an indispensable part of consumers' daily attire. During exercise, the human body perspires profusely. Ordinary fabrics tend to become damp and cling to the skin after absorbing sweat, which not only causes great discomfort to the wearer but can also affect athletic performance. More importantly, the retention and slow evaporation of sweat removes a large amount of heat from the body, increasing the risk of catching a cold. Therefore, the market demand for fabrics with efficient moisture-wicking properties (i.e., moisture-wicking fabrics) is increasing.

[0003] The moisture-wicking fabrics currently on the market are mainly achieved through the following methods: (1) Through graft copolymerization technology, hydrophilic groups are introduced into the hydrophobic macromolecules of the spinning raw materials used in the bottom yarn layer to improve the hydrophilicity of the spinning raw materials, so that the spinning raw materials can better absorb and conduct sweat, in order to improve the moisture-wicking performance of the raw materials; (2) The spinning raw materials used in the bottom yarn layer are hydrophobically modified to reduce the spinning raw materials' ability to absorb sweat, thereby avoiding the retention of sweat inside the spinning raw materials and allowing it to be conducted outward to achieve the purpose of perspiration. However, the above two methods still have problems such as low chemical stability, poor durability, complex processing technology and low efficiency. At the same time, the moisture-wicking fabrics prepared by the above two methods have insufficient isolation mechanism of the bottom yarn layer, and the conducted sweat easily reversely permeates to the human body surface, causing sweat to accumulate between the bottom yarn layer and the human body surface, thereby causing the phenomenon of visible sweat. Furthermore, retained sweat increases the contact area and friction between the base yarn layer and the human body surface, making it difficult for the base yarn layer, even if it is hydrophobic, to avoid adhesion to the human body surface, significantly reducing the fabric's wearing comfort. Furthermore, because sweat cannot be quickly transferred from the base yarn layer to the surface yarn layer and evaporated, the fabric easily becomes saturated and unable to absorb new sweat, which exacerbates the sweating phenomenon and wear discomfort.

[0004] In order to overcome the above-mentioned defects, the moisture-wicking fabrics in the prior art attempt to use a design in which hydrophobic spinning materials are used as the base yarn layer and hydrophilic spinning materials are used as the surface yarn layer, and the natural difference in moisture absorption and moisture conductivity between the woven base yarn layer and the surface yarn layer is used to achieve unidirectional conduction and evaporation of sweat, thereby achieving the purpose of perspiration. However, during the perspiration process, the heat of the human body is also lost into the air as the sweat evaporates, causing the wearer's body temperature to drop and feel cold. In other words, although the existing unidirectional moisture-wicking fabrics can achieve perspiration, their thermal insulation performance is reduced. It is impossible to take into account both perspiration and thermal insulation performance at the same time, which limits their application in cold environments. In addition, the moisture-wicking fabrics obtained by the prior art still have technical problems such as the visible sweat phenomenon and reduced wearing comfort caused by the easy reverse osmosis of sweat and the inability of sweat to evaporate instantly. Summary of the Invention

[0005] One of the purposes of the present invention is to propose a method for preparing a one-way moisture-wicking fabric, which has simple steps and strong operability, ensuring that the one-way moisture-wicking fabric can not only take into account both sweat-wicking and warmth retention, but also effectively solve the technical problems of sweating and uncomfortable wearing, thereby meeting actual use needs.

[0006] The second purpose of the present invention is to propose a one-way moisture-wicking fabric, the wetting time of the permeable surface before washing is ≥ level 4, the wetting time of the permeable surface after washing is ≥ level 4, the water absorption rate of the permeable surface before washing is ≥ level 4, the water absorption rate of the permeable surface after washing is ≥ level 4, the one-way transfer index before washing is ≥ level 5, the one-way transfer index after washing is ≥ level 5, and the thermal insulation property is greater than 25.5%. It can not only take into account both perspiration and warmth retention, but also effectively solve the technical problems of sweating and uncomfortable wearing, and meet actual usage needs.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A method for preparing a one-way moisture-wicking fabric comprises the following steps:

[0009] A. The fabric is woven using a sandwich weave method; wherein the horizontal surface yarn is spun from a compact yarn made of cotton and modal, the horizontal intermediate yarn is spun from ordinary polyester I, and the horizontal base yarn is spun from a blended yarn I consisting of waterproof polyester and spandex, and a blended yarn II consisting of ordinary polyester II and spandex. During the weaving process, the blended yarn I and the blended yarn II are alternately spun twice.

[0010] The denier of the waterproof polyester is the same as the denier of the ordinary polyester II, and the denier of the ordinary polyester I is smaller than the denier of the ordinary polyester II.

[0011] B. performing a loosening process and a dry-setting process on the grey cloth in sequence to obtain an intermediate grey cloth;

[0012] C. performing scouring, bleaching, washing, neutralization and dyeing on the intermediate grey fabric in sequence to obtain a dyed grey fabric;

[0013] D. The dyed grey fabric is sequentially subjected to washing and drying treatment, shaping and softening treatment, and grey heating treatment to obtain a one-way moisture-wicking fabric.

[0014] Furthermore, in step A, the specific steps of weaving the grey fabric using the sandwich weaving method are as follows: the woven pattern consists of a pattern cycle with twelve horizontal routes and four groups of weaving systems, the pattern cycle includes horizontal surface yarns, horizontal bottom yarns and horizontal intermediate yarns, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn constitute a group of weaving systems, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn respectively correspond to one work position, each group of weaving systems performs three work position needle selection, and each work position has two knitting needle positions;

[0015] The spinning raw materials of the horizontal bottom yarns of the first two weaving systems in the four weaving systems are blended yarn I; the spinning raw materials of the horizontal bottom yarns of the remaining two weaving systems in the four weaving systems are blended yarn II.

[0016] Furthermore, the four knitting systems are respectively a first knitting system, a second knitting system, a third knitting system and a fourth knitting system, and the two knitting needle positions are respectively a first knitting needle position and a second knitting needle position;

[0017] The upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all weaving systems participate in weaving; the upper needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal intermediate yarn of the first weaving system and the third weaving system participate in tucking, the lower needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal intermediate yarn of the second weaving system and the fourth weaving system participate in tucking, and the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal surface yarn of all weaving systems participate in weaving;

[0018] The spinning material of the horizontal ground yarn of the first and second weaving systems is the blended yarn I, and the spinning material of the horizontal ground yarn of the third and fourth weaving systems is the blended yarn II.

[0019] Furthermore, in step B, the specific method of the cloth loosening treatment is: placing the grey cloth in a relaxed state for more than 12 hours;

[0020] The specific method of the dry cloth setting treatment is: heating the grey cloth obtained after the loose cloth treatment at a temperature not higher than 190° C. to dry set the grey cloth.

[0021] Furthermore, in step C, the specific method of the scouring and bleaching treatment is: scouring and bleaching the intermediate grey cloth with a scouring and bleaching liquid, the scouring and bleaching temperature is 95-100° C., and the scouring and bleaching time is 45-55 minutes; the scouring and bleaching liquid includes 1.5-2.5 g / L of a refining agent, 0.3-0.8 g / L of a stabilizer, 5-7 g / L of liquid alkali and 4-8 g / L of hydrogen peroxide;

[0022] The specific method of the washing treatment is: washing the grey cloth obtained after the scouring and bleaching treatment with water at 70 to 90° C. for 8 to 15 minutes;

[0023] The specific method of the neutralization treatment is: placing the washed grey cloth in an acetic acid aqueous solution for 5 to 15 minutes, wherein the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L and the temperature is 45 to 55°C;

[0024] The specific method of the dyeing treatment is: dyeing the neutralized grey cloth with a dye aqueous solution for 20 to 30 minutes, and the temperature of the dye aqueous solution is 60 to 80° C.; then adding sodium sulfate to the dye aqueous solution and stirring for 15 to 25 minutes; continuously adding sodium carbonate to the dye aqueous solution and stirring for 25 to 35 minutes; and finally keeping the temperature at 60 to 80° C. for 50 to 70 minutes.

[0025] Furthermore, in step D, the specific method of the water washing and drying treatment is: washing with warm water at 70-90°C, then washing with cold water at 5-10°C, and after washing, placing in a drying room for drying treatment; wherein the drying temperature of the drying treatment is 100-110°C;

[0026] The specific method of the setting and softening treatment is: using 20-30 g / L of a hydrophilic softening agent to soften and set the dyed grey fabric after washing and drying, wherein the setting temperature is 130-150° C. and the setting time is 5-10 minutes;

[0027] The specific method of the heat treatment for setting the blank is: heating and setting the dyed grey cloth after the setting and softening treatment at a temperature not higher than 150°C.

[0028] Furthermore, in step A, the count of the compact spinning yarn is 45 to 55S;

[0029] The denier of the ordinary polyester I is 45 to 55D;

[0030] The spandex has a denier of 25 to 35D;

[0031] The denier of the waterproof polyester and the ordinary polyester II are both 70-80D.

[0032] Furthermore, in step A, calculated by mass ratio, the mixing ratio of the modal and the cotton is 1:(4-5).

[0033] Furthermore, in step A, calculated according to mass ratio, the yarn ratio of the horizontal surface yarn, the horizontal intermediate yarn and the horizontal bottom yarn is 1:(0.05-0.20):(1-1.2).

[0034] A one-way moisture-wicking fabric is prepared using the above-mentioned method for preparing a one-way moisture-wicking fabric. The one-way moisture-wicking fabric has a permeable surface soaking time of ≥ level 4 before washing, a permeable surface soaking time of ≥ level 4 after washing, a permeable surface water absorption rate of ≥ level 4 before washing, a permeable surface water absorption rate of ≥ level 4 after washing, a one-way transfer index of ≥ level 5 before washing, a one-way transfer index of ≥ level 5 after washing, and a thermal insulation property of >25.5%.

[0035] The technical solution provided by the present invention can have the following beneficial effects:

[0036] 1. This technical solution achieves the effect of rapidly transferring sweat from the base veil to the surface veil by designing differences in moisture absorption and conductivity between the base and surface veils. Once sweat reaches the surface veil, it is rapidly absorbed by the surface veil due to its excellent hydrophilicity. Subsequently, utilizing air flow and temperature differences on the surface of the surface veil, the sweat quickly evaporates into the air, achieving the desired perspiration removal effect.

[0037] 2. Since the blended yarn I has strong moisture conductivity, the blended yarn I forms a "moisture-conducting groove" in the bottom yarn layer after weaving; since the waterproof polyester has strong hydrophobicity, the blended yarn II forms a "hydrophobic membrane" in the bottom yarn layer after weaving. The above-mentioned alternating weaving method makes the moisture-conducting grooves and the hydrophobic membrane in the bottom yarn layer alternately arranged. The moisture-conducting grooves have the characteristics of absorbing the sweat secreted by the human body and conducting it outward, so that the bottom yarn layer has good moisture conductivity. The hydrophobic membrane has the characteristics of avoiding the reverse penetration of the conducted sweat, so that the bottom yarn layer can achieve unidirectional conduction of sweat (i.e. unidirectional moisture conduction), thereby avoiding the conducted sweat from easily reversely penetrating to the human body surface, causing sweat to accumulate between the bottom yarn layer and the human body surface, and then causing sweating and wearing discomfort.

[0038] 3. This technical solution forms a "sweat storage pool" by adding an air layer and optimizing the spinning raw materials of the horizontal middle yarn. It not only greatly increases the sweat storage capacity of the fabric, but also effectively accelerates the evaporation rate of sweat, solving the technical problems of sweating and wearing discomfort caused by the fabric being unable to absorb new sweat due to saturation, thereby meeting actual usage needs.

[0039] 4. When sweat is transferred from the base yarn layer to the air layer, the air layer provides a buffer zone, allowing the heat released when sweat evaporates to remain inside the fabric longer, thereby slowing the wearer's body temperature drop. Simultaneously, the air layer contains a large number of tiny air pockets or air channels that can capture and retain air. Air is a poor conductor of heat, which helps effectively isolate the cold air from the outside, reducing heat outflow and greatly improving the warmth of the fabric. Furthermore, the unidirectional moisture-wicking fabric's unidirectional moisture-wicking properties effectively block cold, wet moisture from the outside, making it difficult for it to penetrate the fabric's veil layer and, consequently, prevent it from crossing the air layer to reach the base yarn layer and come into direct contact with the human body surface. This not only ensures the smooth discharge of sweat, but also significantly improves the fabric's warmth retention. That is, by providing the air layer and the fabric's unidirectional moisture-wicking properties, this technical solution ensures that the fabric maintains its perspiration-wicking properties while also providing a high degree of warmth retention, making it suitable for use in cold environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The invention discloses a weaving pattern used when weaving grey fabric using a sandwich weaving method in a method for preparing a one-way moisture-wicking fabric.

[0041] Figure 2 The present invention discloses a method for preparing a one-way moisture-wicking fabric using a diamond pattern when weaving grey fabric using a sandwich weaving method. DETAILED DESCRIPTION

[0042] This technical solution provides a method for preparing a one-way moisture-wicking fabric, comprising the following steps:

[0043] A. The fabric is woven using a sandwich weave method; wherein the horizontal surface yarn is spun from a compact yarn made of cotton and modal, the horizontal intermediate yarn is spun from ordinary polyester I, and the horizontal base yarn is spun from a blended yarn I consisting of waterproof polyester and spandex, and a blended yarn II consisting of ordinary polyester II and spandex. During the weaving process, the blended yarn I and the blended yarn II are alternately spun twice.

[0044] The denier of the waterproof polyester is the same as the denier of the ordinary polyester II, and the denier of the ordinary polyester I is smaller than the denier of the ordinary polyester II.

[0045] B. performing a loosening process and a dry-setting process on the grey cloth in sequence to obtain an intermediate grey cloth;

[0046] C. performing scouring, bleaching, washing, neutralization and dyeing on the intermediate grey fabric in sequence to obtain a dyed grey fabric;

[0047] D. The dyed grey fabric is sequentially subjected to washing and drying treatment, shaping and softening treatment, and grey heating treatment to obtain a one-way moisture-wicking fabric.

[0048] In order to overcome the technical problems that the existing technology is difficult to take into account both perspiration and warmth at the same time, and is easy to cause visible sweat and reduced wearing comfort, the present technical solution proposes a preparation method for a one-way moisture-wicking fabric, including four steps: A (weaving grey cloth), B (loosening the cloth and setting it dry), C (boiling and bleaching, washing, neutralizing and dyeing) and D (washing and drying, setting the softened fabric and heating the set fabric). By optimizing the type of spinning raw materials, weaving method and dry cloth setting process, it is ensured that the one-way moisture-wicking fabric produced can not only take into account both perspiration and warmth at the same time, but also effectively solve the technical problems of visible sweat and uncomfortable wearing. At the same time, the preparation method of the present technical solution is simple and easy to operate, which is conducive to promotion and use in the clothing industry.

[0049] Specifically, the spinning materials of the horizontal surface yarn and the horizontal bottom yarn are woven by a sandwich weaving method to obtain a veil layer and a bottom yarn layer respectively, and the bottom yarn layer is in direct contact with the surface of the human body, and the veil layer is located outside the bottom yarn layer. Among them, the spinning raw materials of the horizontal surface yarn are compact yarns woven from cotton and modal (specifically: compact yarns are yarns obtained by compact spinning using cotton and modal). Since both cotton and modal have porous structures and good hygroscopicity, the compact yarns are hydrophilic as a whole. Since ordinary polyester II (polyester fiber) and spandex are both hydrophobic fibers and lack hydrophilic groups, the blended yarn II composed of ordinary polyester II and spandex is hydrophobic as a whole, and the hygroscopicity of the blended yarn II is far less than that of the compact yarn. Therefore, in fabrics made using a sandwich weave, the bottom yarn layer has significantly lower hygroscopicity than the face yarn layer. This hygroscopicity gradient promotes the spontaneous unidirectional conduction of sweat from the bottom yarn layer to the face yarn layer.

[0050] Furthermore, although ordinary polyester II is a hydrophobic fiber, it still has the ability to absorb sweat. The sweat absorbed by ordinary polyester II is mainly retained in the interfiber spaces, which is less constrained and can therefore quickly conduct sweat, exhibiting high moisture conductivity. Although spandex itself does not have strong moisture absorption properties, the interfiber spaces between the fibers facilitate the conduction and evaporation of sweat, thus also exhibiting good moisture conductivity.

[0051] In contrast, cotton fibers' hygroscopic swelling properties make them thick and heavy when wet, making them difficult to dry, thus affecting their moisture conductivity. Furthermore, while Modal quickly absorbs sweat and conducts it through its interfiber microporous structure, its moisture conductivity is weaker than that of standard polyester II. Therefore, in this technical solution, a blended yarn II composed of standard polyester II and spandex is used as one of the raw materials for the horizontal ground yarn, resulting in a ground yarn layer with better moisture conductivity than the face yarn layer.

[0052] Therefore, based on the above principles, it can be seen that this technical solution achieves the effect of quickly transferring sweat from the bottom yarn layer to the surface yarn layer by designing the difference in moisture absorption and moisture conductivity between the bottom yarn layer and the surface yarn layer. When the sweat reaches the surface yarn layer, it can be quickly absorbed by the surface yarn layer due to its excellent hydrophilicity. Subsequently, the sweat will quickly evaporate into the air by utilizing the air flow and temperature difference on the surface of the surface yarn layer, achieving the purpose of perspiration.

[0053] Secondly, ordinary polyester II lacks an effective isolation mechanism, and the conducted sweat easily reverses to the human body surface, causing sweat to accumulate between the base yarn layer and the body surface, which in turn causes sweating and discomfort. Waterproof polyester, on the other hand, has a hydrophobic film on its surface that completely prevents moisture (including sweat and cold, wet water vapor) from penetrating into its interior. However, when only a blended yarn I consisting of waterproof polyester and spandex is used, the base yarn layer forms a complete hydrophobic barrier, preventing human sweat from penetrating the base yarn layer and conducting outward.

[0054] In order to solve the above problems, the spinning raw materials of the horizontal bottom yarn in this technical solution are blended yarn Ⅰ composed of waterproof polyester and spandex and blended yarn Ⅱ composed of ordinary polyester Ⅱ and spandex, and during the weaving process, blended yarn Ⅰ and blended yarn Ⅱ are alternated in units of two times. Among them, since the blended yarn I has strong moisture conductivity, the blended yarn I forms a "moisture-conducting groove" of the bottom yarn layer after weaving; since the waterproof polyester has strong hydrophobicity, the blended yarn II forms a "hydrophobic membrane" of the bottom yarn layer after weaving. The above-mentioned alternating weaving method makes the moisture-conducting grooves and the hydrophobic membrane in the bottom yarn layer alternately arranged. The moisture-conducting grooves have the characteristics of absorbing the sweat secreted by the human body and conducting it outward, so that the bottom yarn layer has good moisture conductivity. The hydrophobic membrane has the characteristics of avoiding reverse penetration of the conducted sweat, so that the bottom yarn layer can achieve unidirectional conduction of sweat (i.e. unidirectional moisture conduction), thereby avoiding the conducted sweat from easily reversely penetrating to the human body surface, causing sweat to accumulate between the bottom yarn layer and the human body surface, and then causing sweating and wearing discomfort. It should be noted that, during the weaving process, the blended yarn I and the blended yarn II are alternated in units of two times, which means that the weaving method of the bottom yarn is cyclically carried out in the order of "blended yarn I, blended yarn I, blended yarn II, blended yarn II, blended yarn I, blended yarn I, blended yarn II, blended yarn II..."

[0055] Furthermore, in this technical solution, since the blended yarns I and II are hydrophobic as a whole, the resulting base yarn layer has a certain degree of hydrophobicity, but its hydrophobic performance is still limited, and it cannot completely conduct moisture in a unidirectional manner, and there is still a risk of reverse leakage. Therefore, this technical solution optimizes the processing technology of the grey fabric, specifically: the grey fabric after the loosening treatment is subjected to a dry fabric setting treatment. Since the dry fabric setting treatment is to heat the grey fabric in a water-free environment, it can increase the repulsive force between the ends of the macromolecular chains in the waterproof polyester and ordinary polyester II, thereby increasing the hydrophobicity of the waterproof polyester and ordinary polyester II, and then improving the unidirectional moisture conduction ability of the fabric, which is conducive to further avoiding the sweating phenomenon and wearing discomfort.

[0056] Furthermore, although this technical solution utilizes the strong moisture conductivity of the bottom yarn layer and the strong moisture absorption of the surface yarn layer to facilitate the rapid absorption of sweat transferred to the surface yarn layer by the surface yarn layer and diffusion into the air, thereby achieving the evaporation of sweat and achieving the purpose of perspiration removal, however, since sweat cannot be quickly transferred from the bottom yarn layer to the surface yarn layer and evaporated instantly, the fabric is easily saturated and unable to absorb new sweat. Therefore, even if the spinning materials and the fabric processing technology are optimized, it is difficult to meet the requirements of completely anti-perspiration and satisfactory comfort.

[0057] To overcome the above-mentioned drawbacks, the cross-thread intermediate yarns in this technical solution are sandwich-woven to form an air layer with a mesh structure. This air layer is located between the base yarn layer and the face yarn layer. This air layer not only supports and connects the face yarn layer and the base yarn layer, effectively supporting the entire fabric and giving it sufficient thickness, ensuring its stiffness and width, and making it less likely to collapse, but also helps increase the thickness of the fabric and forms a "sweat reservoir" inside the fabric to hold sweat. Even if sweat cannot be quickly transferred from the base yarn layer to the face yarn layer and evaporated, it can be temporarily stored in the "sweat reservoir." At the same time, compared to traditional one-way moisture-wicking fabrics consisting only of a base yarn layer and a face yarn layer, the one-way moisture-wicking fabric obtained by this technical solution has a greatly increased sweat storage capacity, greatly reducing the risk of the fabric quickly reaching saturation due to sweat absorption. The "sweat reservoir" significantly expands the evaporation area of ​​sweat, giving it more opportunities to reach the face veil, thereby improving evaporation efficiency. Furthermore, the horizontal intermediate yarn is made of ordinary polyester I, where water molecules reside only in its crevices, resulting in low binding force. This allows the air layer created by weaving ordinary polyester I to quickly transfer sweat from the base yarn layer to the face veil, further accelerating sweat evaporation. Furthermore, the hydrophobicity of the air layer created using ordinary polyester I in this technical solution is intermediate between the base and face veil layers, creating a moisture absorption gradient between the base, air, and face veil layers, further facilitating sweat conduction and evaporation. In other words, by adding an air layer to form a "sweat reservoir" and optimizing the raw materials used in the horizontal intermediate yarn, this technical solution not only significantly increases the fabric's sweat storage capacity but also effectively accelerates sweat evaporation, resolving the technical issues of saturated fabrics unable to absorb new sweat, leading to visible sweat and discomfort, thus meeting practical user needs.

[0058] Again, although the one-way moisture-wicking fabric obtained by this technical solution can achieve perspiration, its thermal insulation performance is reduced. It is impossible to take into account both perspiration-wicking performance and thermal insulation at the same time, which limits its application in cold environments.

[0059] To overcome these drawbacks, the present invention provides an air layer. When sweat is transferred from the base yarn layer to the air layer, the air layer provides a buffer zone, allowing the heat released by sweat evaporation to remain within the fabric longer, thereby slowing the wearer's body temperature drop. Furthermore, the air layer contains numerous tiny air pockets or air channels that capture and retain air. Air is a poor conductor of heat, effectively isolating the fabric from cold air, reducing heat loss, and significantly improving the fabric's warmth retention. Furthermore, the unidirectional moisture-wicking fabric's unidirectional moisture-wicking properties effectively block cold, wet moisture from the outside, making it difficult for it to penetrate the fabric's veil layer and, consequently, prevent it from passing through the air layer to reach the base yarn layer and come into direct contact with the human body surface. This not only ensures smooth sweat discharge, but also significantly improves the fabric's warmth retention. In other words, by providing the air layer and the fabric's unidirectional moisture-wicking properties, the present invention ensures that the fabric maintains its wicking properties while also offering high warmth retention, making it suitable for use in cold environments.

[0060] Finally, denier refers to the weight in grams of 9,000 meters of yarn at a standard moisture regain of 8.5%. The higher the denier, the thicker the yarn. To ensure that the top yarn layer woven from blended yarn I and the bottom yarn layer, woven alternately with blended yarn I and blended yarn II twice, completely cover the middle layer woven from ordinary polyester I, this technical solution sets the denier of the waterproof polyester to the same as that of ordinary polyester II, while the denier of ordinary polyester I is smaller than that of ordinary polyester II. This prevents yarn leakage and ensures the product's appearance and performance.

[0061] In addition, since the spinning raw materials of the horizontal bottom yarn are blended yarn Ⅰ composed of waterproof polyester and spandex and blended yarn Ⅱ composed of ordinary polyester Ⅱ and spandex, that is, the denier of waterproof polyester and ordinary polyester Ⅱ have similar structures, when the denier of the two is the same, it is not only beneficial to ensure the consistency of the fineness of the product, but also beneficial to ensure the production efficiency of the product.

[0062] It should be noted that the spinning materials used in this technical solution include cotton, modal, polyester, and spandex. Cotton and modal are relatively soft, which helps to impart softness to the fabric, improving its feel and comfort. The addition of spandex, an elastic fiber, imparts high elasticity to the fabric, which meets the requirements for unidirectional moisture-wicking fabrics used in sportswear.

[0063] Further explanation, in step A, the specific steps of weaving the grey fabric using the sandwich weaving method are as follows: the woven pattern consists of a pattern loop with twelve horizontal paths and four groups of weaving systems, the pattern loop includes a horizontal surface yarn, a horizontal bottom yarn and a horizontal intermediate yarn, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn constitute a group of weaving systems, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn respectively correspond to one work position, each group of weaving systems performs three work position needle selection, and each work position has two knitting needle positions;

[0064] The spinning raw materials of the horizontal bottom yarns of the first two weaving systems in the four weaving systems are blended yarn I; the spinning raw materials of the horizontal bottom yarns of the remaining two weaving systems in the four weaving systems are blended yarn II.

[0065] In a preferred embodiment of the present invention, the present invention adopts a 24G, 34-inch fine-gauge double-sided loom to weave the fabric, specifically as follows: Figure 1 Weaving diagrams and Figure 2 As shown in the diamond-shaped diagram, the weaving principle is that the pattern cycle adopts horizontal bottom yarn, horizontal middle yarn and horizontal surface yarn to weave into grey cloth, so that the fabric forms a bottom yarn layer, an air layer and a veil layer distributed from the inside to the outside. Through the mutual cooperation of the three tissue phases of the bottom yarn layer, the air layer and the veil layer, the one-way moisture-wicking fabric can not only take into account the sweat-wicking and warmth-retaining properties at the same time, but also effectively solve the technical problems of sweat-visible phenomenon and uncomfortable wearing.

[0066] Further explanation: the four knitting systems are respectively the first knitting system, the second knitting system, the third knitting system and the fourth knitting system, and the two knitting needle positions are respectively the first knitting needle position and the second knitting needle position;

[0067] The upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all weaving systems participate in weaving; the upper needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal intermediate yarn of the first weaving system and the third weaving system participate in tucking, the lower needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal intermediate yarn of the second weaving system and the fourth weaving system participate in tucking, and the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal surface yarn of all weaving systems participate in weaving;

[0068] The spinning material of the horizontal ground yarn of the first and second weaving systems is the blended yarn I, and the spinning material of the horizontal ground yarn of the third and fourth weaving systems is the blended yarn II.

[0069] The present technical solution defines a specific weaving process, wherein a horizontal bottom yarn, a horizontal intermediate yarn and a horizontal surface yarn respectively correspond to a work position, and the first weaving needle position and the second weaving needle position of the weaving work position of the horizontal bottom yarn weave the horizontal bottom yarn to obtain a bottom yarn layer; the first weaving needle position and the second weaving needle position of the weaving work position of the horizontal intermediate yarn weave the horizontal intermediate yarn to obtain an air layer; the first weaving needle position and the second weaving needle position of the weaving work position of the horizontal surface yarn weave the horizontal surface yarn to obtain a veil layer, thereby obtaining a fabric with a sandwich structure, thereby ensuring the performance of the fabric.

[0070] Further, in step B, the specific method of the cloth loosening treatment is: placing the grey cloth in a relaxed state for more than 12 hours;

[0071] The specific method of the dry cloth setting treatment is: heating the grey cloth obtained after the loose cloth treatment at a temperature not higher than 190° C. to dry set the grey cloth.

[0072] Since spandex is used as a raw material in the one-way moisture-wicking fabric of the present technical solution, and spandex is an elastic fiber, the woven grey fabric needs to be loosened so that the grey fabric can relax back to a relatively natural state and have a stable size.

[0073] Furthermore, heating above 195°C will irreversibly damage spandex. Therefore, this technical solution limits the dry-weave blanking temperature to no higher than 190°C. This ensures the hydrophobicity of the base yarn layer after dry-weave blanking while also preventing damage to other raw materials, thereby ensuring product performance.

[0074] Further explanation, in step C, the specific method of the scouring and bleaching treatment is: scouring and bleaching the intermediate grey cloth with a scouring and bleaching liquid, the scouring and bleaching temperature is 95-100°C, and the scouring and bleaching time is 45-55 minutes; the scouring and bleaching liquid includes 1.5-2.5g / L of refining agent, 0.3-0.8g / L of stabilizer, 5-7g / L of liquid alkali and 4-8g / L of hydrogen peroxide;

[0075] The specific method of the washing treatment is: washing the grey cloth obtained after the scouring and bleaching treatment with water at 70 to 90° C. for 8 to 15 minutes;

[0076] The specific method of the neutralization treatment is: placing the washed grey cloth in an acetic acid aqueous solution for 5 to 15 minutes, wherein the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L and the temperature is 45 to 55°C;

[0077] The specific method of the dyeing treatment is: dyeing the neutralized grey cloth with a dye aqueous solution for 20 to 30 minutes, and the temperature of the dye aqueous solution is 60 to 80° C.; then adding sodium sulfate to the dye aqueous solution and stirring for 15 to 25 minutes; continuously adding sodium carbonate to the dye aqueous solution and stirring for 25 to 35 minutes; and finally keeping the temperature at 60 to 80° C. for 50 to 70 minutes.

[0078] In a preferred embodiment of the present technical solution, the specific method of scouring and bleaching treatment is: scouring and bleaching the intermediate grey cloth with a scouring and bleaching liquid, the scouring and bleaching temperature is 95-100 ° C, and the scouring and bleaching time is 45-55 min; the scouring and bleaching liquid includes 1.5-2.5 g / L of a refining agent, 0.3-0.8 g / L of a stabilizer, 5-7 g / L of liquid alkali and 4-8 g / L of hydrogen peroxide. By limiting the scouring and bleaching temperature, scouring and bleaching time and scouring and bleaching liquid, impurities in the grey cloth are removed, making the grey cloth white, soft and breathable, and providing a qualified semi-finished product for the subsequent dyeing process.

[0079] Furthermore, the specific method of washing treatment is: washing the grey cloth obtained after the boiling and bleaching treatment with 70-90°C water for 8-15 minutes, and limiting the washing water temperature and washing time to ensure the washing effect, facilitate the removal of the boiling and bleaching liquid, and avoid the residual boiling and bleaching liquid affecting the subsequent processes.

[0080] Furthermore, the specific method of neutralization treatment is: placing the grey cloth after washing treatment in an acetic acid aqueous solution and soaking it for 5 to 15 minutes, and the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L, and the temperature is 45 to 55°C. Acetic acid is used to neutralize the liquid alkali components still remaining on the grey cloth after washing treatment, so that the grey cloth is neutral. At the same time, the high-valent iron ions remaining in the bleaching and washing treatments are complexed to prevent the grey cloth from yellowing.

[0081] Furthermore, the specific method of dyeing treatment is: dyeing the neutralized grey cloth with a dye aqueous solution for 20 to 30 minutes, the temperature of the dye aqueous solution is 60 to 80 degrees Celsius; then adding sodium sulfate to the dye aqueous solution and stirring for 15 to 25 minutes; continuing to add sodium carbonate to the dye aqueous solution and stirring for 25 to 35 minutes; finally, keeping warm at a temperature of 60 to 80 degrees Celsius for 50 to 70 minutes, so that the grey cloth is 100% dyed, the dyeing is bright, and there is less floating color, thereby improving the dyeing effect of the grey cloth.

[0082] Further, in step D, the specific method of the washing and drying treatment is: washing with warm water at 70-90°C, then washing with cold water at 5-10°C, and after washing, placing in a drying room for drying treatment; wherein the drying temperature of the drying treatment is 100-110°C;

[0083] The specific method of the setting and softening treatment is: using 20-30 g / L of a hydrophilic softening agent to soften and set the dyed grey fabric after washing and drying, wherein the setting temperature is 130-150° C. and the setting time is 5-10 minutes;

[0084] The specific method of the heat treatment for setting the blank is: heating and setting the dyed grey cloth after the setting and softening treatment at a temperature not higher than 150°C.

[0085] In a preferred embodiment of this technical solution, the washing and drying process is as follows: washing with warm water at 70-90°C, followed by a cold water wash at 5-10°C, to ensure that as much loose hair as possible is removed. After washing, the fabric is placed in a drying chamber for drying at a temperature of 100-110°C to ensure a good drying effect.

[0086] Furthermore, the specific method of the soft setting treatment is: use 20-30g / L of hydrophilic soft oil to softly set the dyed grey fabric after washing and drying, wherein the setting temperature is 130-150℃ and the setting time is 5-10 minutes, to ensure the soft setting effect, make the fabric soft and comfortable to wear, and also facilitate the subsequent raising process. In addition, the soft setting treatment can also make ordinary polyester II slightly hydrophilic and hygroscopic, while the waterproof polyester will not be affected and will continue to maintain its hydrophobic and water-repellent effect. Ultimately, the bottom yarn layer, air layer and face yarn layer are formed to not only form a sweat-conducting and smooth structure, but also avoid reverse leakage of sweat, achieving one-way conduction of sweat.

[0087] Furthermore, the specific method of heat treatment for setting the grey fabric is as follows: the dyed fabric after setting the softening treatment is heated at a temperature not higher than 150°C to ensure that the fabric does not harden and maintain the softness of the grey fabric.

[0088] Further, in step A, the count of the compact spun yarn is 45 to 55S;

[0089] The denier of the ordinary polyester I is 45 to 55D;

[0090] The spandex has a denier of 25 to 35D;

[0091] The denier of the waterproof polyester and the ordinary polyester II are both 70-80D.

[0092] Because yarns of varying thicknesses have varying softness, thickness, stiffness, coverage, and elasticity, the resulting fabrics exhibit varying perspiration-wicking, warmth-retaining, perspiration-visibility, and comfort. Yarns that are too thick or too thin are detrimental to product quality. Therefore, in a preferred embodiment of this technical solution, the count of the compact yarn is limited to 45-55S, the denier of spandex is limited to 15-70D, and the denier of polyester is limited to 30-75D. This further ensures that the resulting fabric not only achieves both perspiration-wicking and warmth-retaining properties, but also effectively avoids perspiration-visibility and discomfort.

[0093] It should be noted that the count refers to the multiple of a certain standard length of 1 pound of yarn when the standard regain is 8.5%. The larger the count, the thinner the yarn, and the standard length varies depending on the type of yarn. Cotton and cotton blended yarn is 840 yards, fine sulfur yarn is 560 yards, coarse sulfur cotton yarn is 256 yards, and linen yarn is 300 yards.

[0094] It should be further explained that denier refers to the weight in grams of 9,000 meters of silk at a standard moisture regain of 8.5%. The larger the denier number, the thicker the yarn.

[0095] Further, in step A, calculated by mass ratio, the mixing ratio of the modal and the cotton is 1:(4-5).

[0096] Compared with cotton, modal is more conducive to increasing the softness and moisture absorption of compact spun yarn. Therefore, in this technical solution, a certain proportion of modal is added to the compact spun yarn to ensure the moisture absorption and perspiration absorption and softness of the prepared fabric.

[0097] Further explanation, in step A, calculated according to mass ratio, the yarn ratio of the horizontal surface yarn, the horizontal intermediate yarn and the horizontal bottom yarn is 1: (0.05-0.20): (1-1.2).

[0098] In a preferred embodiment of the present technical solution, by limiting the yarn ratio of the horizontal bottom yarn, the horizontal middle yarn and the horizontal surface yarn, on the one hand, it ensures that the air layer obtained by the horizontal middle yarn supports the fabric, avoiding the situation where the amount of horizontal middle yarn used is too small, affecting the stiffness of the fabric; on the other hand, it also ensures that the bottom yarn layer, the air layer and the surface yarn layer form a hygroscopic gradient, which is beneficial to the conduction of sweat and achieves the effect of perspiration.

[0099] A one-way moisture-wicking fabric is prepared using the above-mentioned method for preparing a one-way moisture-wicking fabric. The one-way moisture-wicking fabric has a permeable surface soaking time of ≥ level 4 before washing, a permeable surface soaking time of ≥ level 4 after washing, a permeable surface water absorption rate of ≥ level 4 before washing, a permeable surface water absorption rate of ≥ level 4 after washing, a one-way transfer index of ≥ level 5 before washing, a one-way transfer index of ≥ level 5 after washing, and a thermal insulation property of >25.5%.

[0100] The present technical solution also proposes a one-way moisture-wicking fabric prepared by a method for preparing the same, wherein the wetting time of the permeable surface before washing is ≥ level 4, the wetting time of the permeable surface after washing is ≥ level 4, the water absorption rate of the permeable surface before washing is ≥ level 4, the water absorption rate of the permeable surface after washing is ≥ level 4, the one-way transfer index before washing is ≥ level 5, the one-way transfer index after washing is ≥ level 5, and the thermal insulation property is greater than 25.5%. It can not only take into account both perspiration and warmth retention, but also effectively avoid the visible sweat phenomenon, thus meeting actual use needs.

[0101] The technical solution of the present invention is further illustrated below through specific implementation methods.

[0102] Example 1

[0103] A. The grey fabric is woven using a sandwich weaving method; the woven pattern consists of a pattern loop with twelve horizontal paths and four groups of weaving systems, and the pattern loop includes horizontal surface yarns, horizontal bottom yarns and horizontal intermediate yarns; wherein, the spinning raw material for the horizontal surface yarns is 50S tight spinning yarn spun from cotton and modal, the spinning raw material for the horizontal intermediate yarns is 50D ordinary polyester Ⅰ, and the spinning raw materials for the horizontal bottom yarns are blended yarn Ⅰ composed of 75D waterproof polyester and 30D spandex and blended yarn Ⅱ composed of 75D ordinary polyester Ⅱ and 30D spandex; calculated by mass ratio, the mixing ratio of modal and cotton is 1:4; calculated by mass ratio, the yarn ratio of horizontal surface yarns, horizontal intermediate yarns and horizontal bottom yarns is 1:0.2:1; one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn constitute a group of weaving systems, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn correspond to one working position respectively, and each group of weaving systems performs three working positions. Needle selection, each work position has two knitting needle positions; the four knitting systems are the first knitting system, the second knitting system, the third knitting system and the fourth knitting system, and the two knitting needle positions are the first knitting needle position and the second knitting needle position; the upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all knitting systems participate in knitting; the upper needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal intermediate yarn of the first knitting system and the third knitting system participate in tucking, and the lower needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal intermediate yarn of the second knitting system and the fourth knitting system participate in tucking; the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal surface yarn of all knitting systems participate in knitting; the spinning raw material of the horizontal bottom yarn of the first knitting system and the second knitting system is blended yarn I, and the spinning raw material of the horizontal bottom yarn of the third knitting system and the fourth knitting system is blended yarn II;

[0104] B. performing a loosening process and a dry-setting process on the grey fabric in sequence to obtain an intermediate grey fabric; wherein the loosening process comprises placing the grey fabric in a relaxed state for 12 hours; and the dry-setting process comprises heating and dry-setting the grey fabric obtained after the loosening process at a temperature of 185°C;

[0105] C. The intermediate grey cloth is subjected to scouring, bleaching, washing, neutralization and dyeing in sequence to obtain a dyed grey cloth; wherein the specific method of the scouring and bleaching treatment is as follows: the intermediate grey cloth is scouring with a scouring and bleaching liquid at a scouring and bleaching temperature of 95°C and a scouring and bleaching time of 50 minutes; the scouring and bleaching liquid comprises 2g / L of a refining agent, 0.5g / L of a stabilizer, 5g / L of liquid alkali and 8g / L of hydrogen peroxide; the specific method of the washing treatment is as follows: the grey cloth obtained after the scouring and bleaching treatment is washed with 70°C water for 9 minutes; the specific method of the neutralization treatment is as follows: the grey cloth after the washing treatment is placed in an acetic acid aqueous solution and soaked for 10 minutes, and the acetic acid aqueous solution has a concentration of 0.8g / L and a temperature of 45°C; the specific method of the dyeing treatment is as follows: the grey cloth after the neutralization treatment is dyed with a dye aqueous solution for 25 minutes, the dye aqueous solution has a temperature of 60°C, then sodium sulfate is added to the dye aqueous solution and stirred for 20 minutes; sodium carbonate is continuously added to the dye aqueous solution and stirred for 25 minutes; and finally, the solution is kept warm at 60°C for 60 minutes;

[0106] D. The dyed grey fabric is sequentially subjected to washing and drying, setting and softening treatment, and setting and heating treatment to obtain a one-way moisture-wicking fabric; wherein, the washing and drying treatment is specifically performed as follows: washing with 75°C warm water, then washing with 5°C cold water, and after washing, placing the fabric in a drying chamber for drying treatment, wherein the drying temperature of the drying treatment step is 100°C; the setting and softening treatment is specifically performed as follows: softening and setting the washed and dried dyed grey fabric with 20g / L hydrophilic softening oil, wherein the setting temperature is 130°C, the setting time is 5 minutes, and the hydrophilic softening oil is a hydrophilic softening oil agent with the brand number 8011 from Guangzhou Zhuangjie Chemical Co., Ltd.; the setting and heating treatment is specifically performed as follows: heating and setting the dyed grey fabric after the setting and softening treatment at a temperature of 140°C.

[0107] Example 2

[0108] A. The grey fabric is woven using a sandwich weaving method; the woven pattern consists of a pattern cycle with twelve horizontal routes and four groups of weaving systems, and the pattern cycle includes horizontal surface yarns, horizontal bottom yarns and horizontal intermediate yarns; among them, the spinning raw material for the horizontal surface yarns is 45S tight spinning yarn spun from cotton and modal, the spinning raw material for the horizontal intermediate yarns is 55D ordinary polyester Ⅰ, and the spinning raw materials for the horizontal bottom yarns are blended yarn Ⅰ composed of 70D waterproof polyester and 35D spandex and blended yarn Ⅱ composed of 70D ordinary polyester Ⅱ and 25D spandex; calculated by mass ratio, the mixing ratio of modal and cotton is 1:5; calculated by mass ratio, the yarn ratio of horizontal surface yarns, horizontal intermediate yarns and horizontal bottom yarns is 1:0.05:1.1; a horizontal bottom yarn, a horizontal intermediate yarn and a horizontal surface yarn constitute a group of weaving systems, a horizontal bottom yarn, a horizontal intermediate yarn and a horizontal surface yarn correspond to one working position respectively, and each group of weaving systems performs three Work position needle selection, each work position has two knitting needle positions; the four knitting systems are the first knitting system, the second knitting system, the third knitting system and the fourth knitting system, and the two knitting needle positions are the first knitting needle position and the second knitting needle position; the upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all knitting systems participate in knitting; the upper needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal intermediate yarn of the first knitting system and the third knitting system participate in tucking, and the lower needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal intermediate yarn of the second knitting system and the fourth knitting system participate in tucking; the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal surface yarn of all knitting systems participate in knitting; the spinning raw material of the horizontal bottom yarn of the first knitting system and the second knitting system is blended yarn I, and the spinning raw material of the horizontal bottom yarn of the third knitting system and the fourth knitting system is blended yarn II;

[0109] B. performing a loosening process and a dry-setting process on the grey fabric in sequence to obtain an intermediate grey fabric; wherein the loosening process comprises placing the grey fabric in a relaxed state for 13 hours; and the dry-setting process comprises heating and dry-setting the grey fabric obtained after the loosening process at a temperature of 180°C;

[0110] C. The intermediate grey fabric is subjected to scouring, bleaching, washing, neutralization and dyeing in sequence to obtain a dyed grey fabric; wherein the scouring and bleaching treatment is as follows: the intermediate grey fabric is scouring with scouring liquid at a scouring temperature of 95°C for 45 minutes; the scouring liquid comprises 1.5 g / L of a refining agent, 0.5 g / L of a stabilizer, 5 g / L of liquid alkali and 6 g / L of hydrogen peroxide; the washing treatment is as follows: the grey fabric obtained after scouring and bleaching is washed with water at 70°C for 10 minutes; the neutralization treatment is performed. The specific method is as follows: the washed grey cloth is placed in an acetic acid aqueous solution and soaked for 10 minutes, and the concentration of the acetic acid aqueous solution is 1.0 g / L and the temperature is 50°C; the specific method of the dyeing treatment is as follows: the neutralized grey cloth is dyed with a dye aqueous solution for 20 minutes, and the temperature of the dye aqueous solution is 70°C; then sodium sulfate is added to the dye aqueous solution and stirred for 20 minutes; sodium carbonate is continuously added to the dye aqueous solution and stirred for 30 minutes; and finally, the temperature is kept at 60°C for 60 minutes;

[0111] D. The dyed grey fabric is sequentially subjected to washing and drying treatment, setting and softening treatment, and setting and heating treatment to obtain a one-way moisture-wicking fabric; wherein, the washing and drying treatment is specifically performed as follows: washing with 80°C warm water, then washing with 8°C cold water, and drying in a drying room after washing; wherein, the drying temperature for the drying treatment is 100°C; the setting and softening treatment is specifically performed as follows: softening and setting the washed and dried dyed grey fabric with 20g / L of a hydrophilic softening oil agent, wherein the setting temperature is 140°C, the setting time is 6 minutes, and the hydrophilic softening oil is a hydrophilic softening oil agent produced by Guangzhou Zhuangjie Chemical Co., Ltd., with the brand number 8011; the setting and heating treatment is specifically performed as follows: heating and setting the dyed grey fabric after the setting and softening treatment at a temperature of 145°C.

[0112] Example 3

[0113] A. The grey fabric is woven using a sandwich weaving method; the woven pattern consists of a pattern cycle with twelve horizontal routes and four groups of weaving systems, and the pattern cycle includes horizontal surface yarns, horizontal bottom yarns and horizontal intermediate yarns; among them, the spinning raw material for the horizontal surface yarns is 55S tight spinning yarn spun from cotton and modal, the spinning raw material for the horizontal intermediate yarns is 45D ordinary polyester Ⅰ, and the spinning raw materials for the horizontal bottom yarns are blended yarn Ⅰ composed of 70D waterproof polyester and 25D spandex and blended yarn Ⅱ composed of 70D ordinary polyester Ⅱ and 25D spandex; calculated by mass ratio, the mixing ratio of modal and cotton is 1:4.5; calculated by mass ratio, the yarn ratio of horizontal surface yarns, horizontal intermediate yarns and horizontal bottom yarns is 1:0.1:1.1; one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn constitute a group of weaving systems, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn correspond to one working position respectively, and each group of weaving systems performs three Work position needle selection, each work position has two knitting needle positions; the four knitting systems are the first knitting system, the second knitting system, the third knitting system and the fourth knitting system, and the two knitting needle positions are the first knitting needle position and the second knitting needle position; the upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all knitting systems participate in knitting; the upper needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal intermediate yarn of the first knitting system and the third knitting system participate in tucking, and the lower needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal intermediate yarn of the second knitting system and the fourth knitting system participate in tucking; the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal surface yarn of all knitting systems participate in knitting; the spinning raw material of the horizontal bottom yarn of the first knitting system and the second knitting system is blended yarn I, and the spinning raw material of the horizontal bottom yarn of the third knitting system and the fourth knitting system is blended yarn II;

[0114] B. performing a loosening process and a dry-setting process on the grey fabric in sequence to obtain an intermediate grey fabric; wherein the loosening process comprises placing the grey fabric in a relaxed state for 14 seconds; and the dry-setting process comprises heating and dry-setting the grey fabric obtained after the loosening process at a temperature of 190° C.;

[0115] C. The intermediate grey cloth is subjected to scouring, bleaching, washing, neutralization and dyeing in sequence to obtain a dyed grey cloth; wherein the scouring and bleaching treatment is carried out as follows: the intermediate grey cloth is scouring with a scouring and bleaching liquid at a scouring and bleaching temperature of 100°C for 45 minutes; the scouring and bleaching liquid comprises 2g / L of a refining agent, 0.3g / L of a stabilizer, 5g / L of liquid alkali and 6g / L of hydrogen peroxide; the washing treatment is carried out as follows: the grey cloth obtained after the scouring and bleaching treatment is washed with 80°C water for 10 minutes; the neutralization treatment is carried out as follows: the grey cloth after the washing treatment is placed in an acetic acid aqueous solution with a concentration of 0.8g / L and a temperature of 45°C for 10 minutes; the dyeing treatment is carried out as follows: the neutralized grey cloth is dyed with a dye aqueous solution for 20 minutes, and the dye aqueous solution is at a temperature of 80°C; then sodium sulfate is added to the dye aqueous solution and stirred for 15 minutes; sodium carbonate is continuously added to the dye aqueous solution and stirred for 25 minutes; and finally, the solution is kept warm at 60°C for 70 minutes;

[0116] D. The dyed grey fabric is sequentially subjected to washing and drying treatment, setting and softening treatment, and setting and heating treatment to obtain a one-way moisture-wicking fabric; wherein, the washing and drying treatment is specifically performed as follows: washing with 80°C warm water, then washing with 5°C cold water, and after washing, placing the fabric in a drying room for drying treatment; wherein, the drying temperature for the drying treatment is 100°C; the setting and softening treatment is specifically performed as follows: softening and setting the washed and dried dyed grey fabric with 20g / L of a hydrophilic softening oil agent, wherein the setting temperature is 150°C, the setting time is 5 minutes, and the hydrophilic softening oil is a hydrophilic softening oil agent produced by Guangzhou Zhuangjie Chemical Co., Ltd., with the brand number 8011; the setting and heating treatment is specifically performed as follows: heating and setting the dyed grey fabric after the setting and softening treatment at a temperature of 130°C.

[0117] Comparative Example 1

[0118] Except that the weaving method in step A is different from that in Example 1, the rest of this comparative example is the same as Example 1. Specifically, Comparative Example 2 is woven into a grey cloth using a double-sided weaving method, and its specific weaving method is: the woven pattern consists of eight horizontal paths and two groups of pattern cycles of the weaving system, and the pattern cycles include horizontal surface yarns and horizontal bottom yarns; wherein, the spinning raw material of the horizontal surface yarn is 50S tight spinning yarn spun from cotton and modal, and the spinning raw material of the horizontal bottom yarn is a blended yarn I composed of 75D waterproof polyester and 30D spandex and a blended yarn II composed of 75D ordinary polyester II and 30D spandex; calculated according to the mass ratio, the mixing ratio of modal and cotton is 1:4; calculated according to the mass ratio, the yarn ratio of horizontal surface yarn and horizontal bottom yarn is 1:1; one horizontal surface yarn and one horizontal bottom yarn constitute a weaving system, and one horizontal bottom yarn Each horizontal yarn corresponds to a work position, and each weaving system selects needles at two work positions, with two knitting needle positions in total for each work position; the four weaving systems are the first weaving system, the second weaving system, the third weaving system and the fourth weaving system, and the two knitting needle positions are the first knitting needle position and the second knitting needle position; the upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all weaving systems participate in weaving; the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal bottom yarn of all weaving systems participate in weaving; the spinning raw materials of the horizontal bottom yarns of the first weaving system and the second weaving system are blended yarn I, and the spinning raw materials of the horizontal bottom yarns of the third weaving system and the fourth weaving system are blended yarn II.

[0119] Comparative Example 2

[0120] This comparative example is the same as Example 1 except that the spinning material of the horizontal bottom yarn in step A is different from that of Example 1. Specifically, the spinning material of the horizontal bottom yarn is a blended yarn I composed of waterproof polyester and spandex.

[0121] Comparative Example 3

[0122] This comparative example is the same as Example 1 except that the spinning material of the horizontal bottom yarn in step A is different from that of Example 1. Specifically, the spinning material of the horizontal bottom yarn is a blended yarn II composed of ordinary polyester II and spandex.

[0123] The fabrics prepared in the Examples and Comparative Examples were weighed using an electronic balance. The fabrics were tested using the "GB / T 21655.2-2019 Textiles - Assessment of Moisture Absorption and Quick-Drying Properties - Part 2 - Dynamic Moisture Transfer Method" for the following: surface wetting time before washing, surface wetting time after washing, surface water absorption rate before washing, surface water absorption rate after washing, and one-way water transfer index before washing and after washing. The fabrics were washed five times according to the "GB / T 8629-2017.4 Textile Testing - Household Washing and Drying Procedure" procedure and hung to dry. Furthermore, the fabrics prepared in the Examples and Comparative Examples were tested for thermal insulation using the "GBT 35762-2017 Textiles - Test Method for Thermal Transfer Properties."

[0124] Table 1 Performance test results of fabrics obtained by different preparation methods in Examples and Comparative Examples

[0125]

[0126] From the performance test results of the embodiments and comparative examples in Table 1 above, it can be seen that the unidirectional moisture-wicking fabric prepared by the preparation method of a unidirectional moisture-wicking fabric has a permeable surface soaking time before washing ≥ level 4, a permeable surface soaking time after washing ≥ level 4, a permeable surface water absorption rate before washing ≥ level 4, a permeable surface water absorption rate after washing ≥ level 4, a one-way transfer index before washing ≥ level 5, a one-way transfer index after washing ≥ level 5, and a thermal insulation property greater than 25.5%. It can not only take into account both perspiration and warmth retention, but also effectively avoid the technical problems of visible sweating and uncomfortable wearing, thereby meeting actual use needs.

[0127] Since the sandwich weaving method is replaced by the double-sided weaving method in Comparative Example 1, an air layer cannot be formed, resulting in a decrease in the warmth retention, wearing comfort and sweat-prevention performance of the obtained fabric.

[0128] Since the spinning raw material of the horizontal bottom yarn in Comparative Example 2 is a blended yarn Ⅰ composed of waterproof polyester and spandex, the bottom yarn layer will form a completely hydrophobic barrier, resulting in the human body's sweat being unable to penetrate the bottom yarn layer and conduct outward, resulting in the resulting fabric's sweat-wicking properties, wearing comfort and ability to avoid sweating all decreased.

[0129] In Comparative Example 3, the horizontal base yarn is made of a blended yarn II of ordinary polyester II and spandex. Ordinary polyester II lacks an effective barrier, allowing conducted sweat to easily permeate the body surface, causing sweat to accumulate between the base yarn layer and the body surface, leading to visible sweat and discomfort. Furthermore, this easy permeation of conducted sweat to the body surface also reduces warmth retention.

[0130] It should be noted that when the one-way transfer index of the fabric before and after washing is high, it will not be easy to show sweat, nor will it be easy for retained sweat to cause the fabric to stick to the human body surface, thereby ensuring wearing comfort. That is, in this technical solution, the one-way transfer index of the fabric before and after washing can be used to characterize the wearing comfort and sweat visibility of the fabric.

[0131] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A method for preparing a one-way moisture-wicking fabric, characterized in that: The following steps are involved: A. The fabric is woven using a sandwich weave method; wherein the horizontal surface yarn is spun from a compact yarn made of cotton and modal, the horizontal intermediate yarn is spun from ordinary polyester I, and the horizontal base yarn is spun from a blended yarn I consisting of waterproof polyester and spandex, and a blended yarn II consisting of ordinary polyester II and spandex. During the weaving process, the blended yarn I and the blended yarn II are alternately spun twice. The denier of the waterproof polyester is the same as the denier of the ordinary polyester II, and the denier of the ordinary polyester I is smaller than the denier of the ordinary polyester II. B. performing a loosening process and a dry-setting process on the grey cloth in sequence to obtain an intermediate grey cloth; C. performing scouring, bleaching, washing, neutralization and dyeing on the intermediate grey fabric in sequence to obtain a dyed grey fabric; D. The dyed grey fabric is sequentially subjected to washing and drying treatment, shaping and softening treatment, and grey heating treatment to obtain a one-way moisture-wicking fabric.

2. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step A, the specific steps of weaving the grey fabric using the sandwich weaving method are as follows: the woven pattern consists of a pattern loop with twelve horizontal paths and four groups of weaving systems, the pattern loop includes horizontal surface yarns, horizontal bottom yarns and horizontal intermediate yarns, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn constitute a group of weaving systems, one horizontal bottom yarn, one horizontal intermediate yarn and one horizontal surface yarn respectively correspond to one work position, each group of weaving systems performs needle selection at three work positions, and each work position has two knitting needle positions; The spinning raw materials of the horizontal bottom yarns of the first two weaving systems in the four weaving systems are blended yarn I; the spinning raw materials of the horizontal bottom yarns of the remaining two weaving systems in the four weaving systems are blended yarn II.

3. The method for preparing a one-way moisture-wicking fabric according to claim 2, wherein four groups The knitting systems are respectively a first knitting system, a second knitting system, a third knitting system and a fourth knitting system, and the two knitting needle positions are respectively a first knitting needle position and a second knitting needle position; The upper needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal bottom yarn of all weaving systems participate in weaving; the upper needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal intermediate yarn of the first weaving system and the third weaving system participate in tucking, the lower needle discs of the first knitting needle position and the upper needle discs of the second knitting needle position of the horizontal intermediate yarn of the second weaving system and the fourth weaving system participate in tucking, and the lower needle discs of the first knitting needle position and the lower needle discs of the second knitting needle position of the horizontal surface yarn of all weaving systems participate in weaving; The spinning material of the horizontal ground yarn of the first and second weaving systems is the blended yarn I, and the spinning material of the horizontal ground yarn of the third and fourth weaving systems is the blended yarn II.

4. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step B, the specific method of the cloth loosening treatment is: placing the grey cloth in a relaxed state for more than 12 hours; The specific method of the dry cloth setting treatment is: heating the grey cloth obtained after the loose cloth treatment at a temperature not higher than 190° C. to dry set the grey cloth.

5. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step C, the specific method of the scouring and bleaching treatment is: scouring the intermediate grey cloth with a scouring and bleaching liquid, the scouring and bleaching temperature is 95-100° C., and the scouring and bleaching time is 45-55 minutes; the scouring and bleaching liquid includes 1.5-2.5 g / L of a refining agent, 0.3-0.8 g / L of a stabilizer, 5-7 g / L of liquid alkali and 4-8 g / L of hydrogen peroxide; The specific method of the washing treatment is: washing the grey cloth obtained after the scouring and bleaching treatment with water at 70 to 90° C. for 8 to 15 minutes; The specific method of the neutralization treatment is: placing the washed grey cloth in an acetic acid aqueous solution for 5 to 15 minutes, wherein the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L and the temperature is 45 to 55°C; The specific method of the dyeing treatment is: dyeing the neutralized grey cloth with a dye aqueous solution for 20 to 30 minutes, and the temperature of the dye aqueous solution is 60 to 80° C.; then adding sodium sulfate to the dye aqueous solution and stirring for 15 to 25 minutes; continuously adding sodium carbonate to the dye aqueous solution and stirring for 25 to 35 minutes; and finally keeping the temperature at 60 to 80° C. for 50 to 70 minutes.

6. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step D, the specific method of the washing and drying treatment is: washing with warm water at 70-90°C, then washing with cold water at 5-10°C, and after washing, placing the clothes in a drying room for drying; wherein the drying temperature of the drying treatment is 100-110°C; The specific method of the setting and softening treatment is: using 20-30 g / L of a hydrophilic softening agent to soften and set the dyed grey fabric after washing and drying, wherein the setting temperature is 130-150° C. and the setting time is 5-10 minutes; The specific method of the heat treatment for setting the blank is: heating and setting the dyed grey cloth after the setting and softening treatment at a temperature not higher than 150°C.

7. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step A, the count of the compact spun yarn is 45 to 55S; The denier of the ordinary polyester I is 45 to 55D; The spandex has a denier of 25 to 35D; The denier of the waterproof polyester and the ordinary polyester II are both 70-80D.

8. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step A, calculated by mass ratio, the mixing ratio of the modal and the cotton is 1:(4-5).

9. The method for preparing a one-way moisture-wicking fabric according to claim 1, wherein: In step A, calculated based on the mass ratio, the yarn ratio of the horizontal ground yarn, the horizontal intermediate yarn and the horizontal bottom yarn is 1:(0.05-0.20):(1-1.2).

10. A one-way moisture-wicking fabric, characterized in that , prepared using the preparation method of a one-way moisture-wicking fabric according to any one of claims 1 to 9, the one-way moisture-wicking fabric has a permeable surface soaking time ≥ level 4 before washing, a permeable surface soaking time ≥ level 4 after washing, a permeable surface water absorption rate ≥ level 4 before washing, a permeable surface water absorption rate ≥ level 4 after washing, a one-way transfer index ≥ level 5 before washing, a one-way transfer index ≥ level 5 after washing, and a thermal insulation property > 25.5%.

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