Moisture-absorbing and sweat-releasing breathable fabric and preparation method thereof

Abstract

This application relates to the field of functional fabrics, specifically disclosing a moisture-wicking and breathable fabric and its preparation method. The moisture-wicking and breathable fabric comprises a face layer and an inner layer bonded together. The face layer is woven from a first blended yarn, which is a blend of fibers with the following weight percentages: 52-56% acrylic fiber, 18-22% viscose fiber, 10-14% cupro fiber, and 12-16% spandex fiber. The inner layer is woven from a second blended yarn, which is a blend of fibers with the following weight percentages: 58.5-62.5% acrylic fiber, 10-15% viscose fiber, 11.5-15.5% spandex fiber, 8-12% cupro fiber, and 3-4% wool. The preparation method involves bonding the face layer and the inner layer together. The fabric obtained in this application has good moisture-wicking, breathability, and warmth retention; it remains smooth and does not easily deform after long-term use, making it suitable for close-fitting clothing.

Description

Technical Field

[0001] This application relates to the field of functional fabrics, and more specifically, to a moisture-wicking and breathable fabric and a method for preparing the same. Background Technology

[0002] As people's living standards continue to improve, their demands for the quality and comfort of clothing are also increasing. The comfort of clothing stems from the fabric used, which needs to possess various properties to adapt to different climates and temperatures. For example, in the hot summer, when temperatures are high, fabrics need to be moisture-wicking and breathable; while in the cold winter, when temperatures are low and skin is prone to dryness, fabrics need to have good warmth retention, breathability, and anti-static properties. Furthermore, these fabrics need to be durable and resistant to deformation during daily wear and washing.

[0003] Currently, some commonly used functional fabrics on the market, such as modal fabric and pure cotton fabric, have relatively limited functions. Although modal fabric has good moisture absorption and breathability, it has low abrasion resistance and is more suitable for summer. Although cotton fabric has good moisture absorption and warmth, it is prone to shrinkage and deformation after long-term wear, which reduces the comfort of using functional fabrics. Summary of the Invention

[0004] To address the issue that existing functional fabrics cannot simultaneously and effectively balance moisture wicking, breathability, and warmth, this application provides a moisture-wicking breathable fabric and its preparation method.

[0005] In a first aspect, this application provides a moisture-wicking and breathable fabric, employing the following technical solution:

[0006] A moisture-wicking and breathable fabric comprises an outer layer and an inner layer that are fitted together. The outer layer is woven from a first blended yarn, which is a blend of fibers in the following weight percentages: 52-56% acrylic fiber, 18-22% viscose fiber, 10-14% cupro fiber, and 12-16% spandex fiber. The inner layer is woven from a second blended yarn, which is a blend of fibers in the following weight percentages: 58.5-62.5% acrylic fiber, 10-15% viscose fiber, 11.5-15.5% spandex fiber, 8-12% cupro fiber, and 3-4% wool.

[0007] By employing the above technical solution, an inner layer is produced by blending and weaving acrylic fiber, viscose fiber, spandex fiber, cupro fiber, and wool in optimal proportions. Acrylic fiber possesses good warmth retention, elasticity, and abrasion resistance, while viscose fiber exhibits good moisture absorption, breathability, softness, and antistatic properties. Blending these two fibers improves both the moisture absorption and breathability of the resulting breathable fabric while also enhancing its warmth retention. However, the resulting breathable fabric lacks elasticity and is prone to deformation after prolonged wear, leading to a reduction in both moisture absorption, breathability, and warmth retention. Therefore, in addition to acrylic and viscose fibers, spandex fiber, cupro fiber, and wool fiber are further added. Spandex fiber possesses good elasticity. This process can further enhance the elasticity of the resulting breathable fabric and reduce the problem of deformation after long-term use. Cuprammonium fiber is made from cotton lint surrounding cotton seeds. The lint is refined and dissolved to produce a pure regenerated fiber with uniform fiber thickness and an approximately circular cross-section. It has good moisture absorption and breathability, resilience, smoothness, and softness against the skin. It also generates heat after absorbing moisture, providing good warmth. Wool fiber has good skin-friendliness, moisture absorption and breathability, and warmth. When used together, these three fibers can produce a good synergistic effect with viscose and acrylic fibers. The resulting breathable fabric has the properties of moisture absorption and breathability, warmth, elasticity, and resistance to deformation.

[0008] The outer layer is made by blending and weaving acrylic fiber, viscose fiber, spandex fiber, and cupro fiber in optimal proportions. This outer layer is then bonded to the inner layer. The inner layer, which is in contact with the skin, needs to be soft, skin-friendly, warm, and breathable. The outer layer, which is away from the skin and in contact with the environment, needs to have good breathability, abrasion resistance, and antistatic properties. By adjusting the different fiber blend ratios of the inner and outer layers, a breathable fabric with good breathability, warmth, elasticity, and resistance to deformation can be produced. This fabric offers the advantages of being warm in winter and cool in summer, and has a wide range of applications, making it suitable for use in close-fitting clothing such as thermal underwear, vests, and tank tops.

[0009] Preferably, the cupro fiber is a pretreated cupro fiber, which is obtained by pretreating the following raw materials in parts by weight:

[0010] 1-3 parts of ammonium persulfate

[0011] 1-2 parts of disodium sulfosuccinate monoester

[0012] 1.5-2.5 parts of ammonium dodecyl sulfate

[0013] 5-10 parts stabilizer

[0014] 6-12 parts of dispersant

[0015] 80-120 parts water.

[0016] By adopting the above technical solution, using disodium sulfosuccinate monoester and ammonium dodecyl sulfate as surfactants and ammonium persulfate as an activator, ammonium persulfate has a good activating effect, which can activate the surface of cupro fiber, enhance the surface wetting and penetration of disodium sulfosuccinate monoester and ammonium dodecyl sulfate on cupro fiber, and thus enhance the penetration and dispersion of stabilizer and dispersant on cupro fiber. The cupro fiber obtained in this way has good dispersibility and a fluffy fiber structure, which can be evenly dispersed with other fibers during the blending process, improve the fluffiness of the obtained breathable fabric, and thus improve the moisture absorption, breathability and warmth retention of the obtained breathable fabric. At the same time, due to the fluffy fiber structure of cupro fiber, the obtained breathable fabric has good elasticity and is not easily deformed during long-term wear.

[0017] Preferably, the stabilizer is composed of propylene glycol alginate and polyvinyl alcohol in a weight ratio of 1:(0.5-1).

[0018] By adopting the above technical solution, using propylene glycol alginate and polyvinyl alcohol in a better ratio as stabilizers, they can be uniformly penetrated and adhered to the surface of cupro fibers to form a uniform adhesion film, thereby improving the uniform penetration and dispersion of the softening dispersant on the surface of cupro fibers and enhancing the fluffing and stretching efficiency of cupro fibers.

[0019] Preferably, the dispersant is composed of polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether in a weight ratio of 1:(1-2).

[0020] By adopting the above technical solution, using polyether-modified dimethylsiloxane and polyethylene glycol diglycidyl ether in a better ratio as dispersants, the bulkiness and elasticity of cupro fiber can be improved. The resulting pretreated cupro fiber has good dispersibility, softness, elasticity and moisture absorption and breathability. The bulky fiber structure makes the resulting breathable fabric less prone to deformation during long-term use and can maintain good fabric dimensional stability.

[0021] Preferably, the pretreated cuprammonium fiber is obtained by the following steps:

[0022] A1. Add ammonium persulfate, disodium sulfosuccinate monoester and ammonium dodecyl sulfate to water, stir evenly, then add cuprammonium fiber, mix and stir for 20-30 minutes to obtain cuprammonium fiber dispersion;

[0023] A2. Add stabilizer and dispersant to cuprammonium fiber dispersion, heat and mix, then filter, wash with water and dry to obtain pretreated cuprammonium fiber.

[0024] By adopting the above technical solution, cuprammonium fiber is first activated and surface-wetted with ammonium sulfate, disodium sulfosuccinate monoester and ammonium dodecyl sulfate to improve the dispersion performance of cuprammonium fiber. Then, stabilizer and dispersant are added. Under heating conditions, stabilizer and dispersant play a good synergistic role, which can fully expand and fluff the cuprammonium fiber. After filtration, washing and drying, cuprammonium fiber with fluffy fiber structure is prepared.

[0025] Preferably, during pretreatment, the weight ratio of the cuprammonium fiber to the pretreatment solution is 1:(10-20).

[0026] By adopting the above technical solution and soaking cupro fibers in a more optimal amount of pretreatment solution, the cupro fibers can be fully fluffed up.

[0027] Preferably, the mixing temperature in step A2 is 42-48°C and the mixing time is 10-20 min.

[0028] By adopting the above technical solution, the optimal mixing temperature and mixing time enable the cupro fiber to be fully fluffed without damaging it.

[0029] Preferably, the first blended yarn has a specification of 30-50D, and the second blended yarn has a specification of 20-30D.

[0030] By adopting the above technical solution, the fineness of the first blended yarn in the outer layer is set to be greater than that of the second blended yarn in the inner layer. This results in the inner layer of the breathable fabric having better density, skin-friendliness, warmth retention, and moisture absorption and breathability, while the outer layer has better perspiration wicking and breathability. This facilitates the expulsion of sweat, improves the moisture absorption and breathability of the resulting breathable fabric, while also providing good warmth retention. Furthermore, it is not easily deformed after long-term use.

[0031] Preferably, the weight of the moisture-wicking breathable fabric is 280-320 g / m². 2 .

[0032] By adopting the above technical solutions, breathable fabrics with a relatively high weight can achieve a good balance between moisture absorption, breathability, and warmth while maintaining a moderate density.

[0033] Secondly, this application provides a method for preparing a moisture-wicking and breathable fabric, using the following technical solution:

[0034] A method for preparing a moisture-wicking and breathable fabric includes the following preparation steps:

[0035] S1. Acrylic fiber, viscose fiber, cupro fiber and spandex fiber are blended to obtain a first blended yarn, and the first blended yarn is woven to obtain a surface layer.

[0036] S2. Acrylic fiber, viscose fiber, cupro fiber, spandex fiber and wool are blended to obtain a second blended yarn, and the second blended yarn is woven to obtain the inner layer.

[0037] S3. The outer and inner layers are bonded together to create a breathable fabric that wicks away moisture and perspiration.

[0038] By adopting the above technical solution, the woven inner layer and outer layer are bonded together to prepare a breathable fabric with good moisture absorption and wicking properties, heat retention and resistance to deformation.

[0039] In summary, this application has the following beneficial effects:

[0040] 1. The moisture-wicking breathable fabric of this application consists of an outer layer and an inner layer. The outer layer is made of a blend of acrylic fiber, viscose fiber, spandex fiber, and cupro fiber, woven together. The inner layer is made of a blend of acrylic fiber, viscose fiber, spandex fiber, cupro fiber, and wool, woven together. The inner layer is in contact with the skin and needs to be soft, skin-friendly, warm, and moisture-wicking. The outer layer is away from the skin and in contact with the environment, so it needs to have good moisture-wicking, breathability, abrasion resistance, and antistatic properties. By adjusting the different fiber blend ratios of the inner and outer layers, a breathable fabric with good moisture-wicking, breathability, warmth, elasticity, and resistance to deformation can be obtained. It has the advantages of being warm in winter and cool in summer, and has a wide range of applications. It can be widely used in close-fitting clothing fabrics, such as thermal underwear, vests, tank tops, etc.

[0041] 2. Cuprammonium fiber is pretreated by using ammonium persulfate, disodium sulfosuccinate monoester, ammonium dodecyl sulfate, stabilizer, dispersant, and water. The stabilizer is preferably composed of propylene glycol alginate and polyvinyl alcohol, and the dispersant is preferably composed of polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether. This pretreated cuprammonium fiber has good dispersibility and bulkiness, and can be evenly dispersed with other fibers during the blending process, improving the bulkiness of the resulting breathable fabric, thereby improving the moisture absorption, breathability, and warmth retention of the resulting breathable fabric. At the same time, due to the bulky fiber structure of cuprammonium fiber, the resulting breathable fabric has good elasticity and is not easily deformed during long-term wear.

[0042] 3. The preparation method of this application involves bonding the woven inner layer and the outer layer together to obtain a breathable fabric with good moisture absorption and wicking properties, heat retention, and resistance to deformation. Detailed Implementation

[0043] The present application will be further described in detail below with reference to the following examples and embodiments.

[0044] The following are some of the sources and specifications of the raw materials used in this application. The raw materials used in the preparation examples and embodiments of this application can all be obtained commercially, including but not limited to the following models and manufacturers of raw materials. Raw materials with equivalent performance can also be used:

[0045] 1. Acrylic fiber: Produced by Toyobo Corporation, with a fineness of 0.5-1.5 dtex and a length of 30-45 mm;

[0046] 2. Viscose fiber: Produced by Lenzing, with a fineness of 0.8-1.7 dtex and a length of 35-40 mm;

[0047] 3. Cupro fiber: Bemberg, fineness 1-1.6 dtex, length 35-40 mm;

[0048] 4. Spandex fiber: Produced by Toyobo Corporation, with a fineness of 1-1.5 dtex and a length of 35-40 mm;

[0049] 5. Wool: Commercially available fine wool, 30-50μm in diameter and 50-70mm in length;

[0050] 6. Disodium sulfosuccinate monoester: MES, solid content 30%, pH value (1% aqueous solution): 5-7;

[0051] 7. Ammonium dodecyl sulfate: K12A, CAS No. 2235-54-3;

[0052] 8. Propylene glycol alginate: CAS No. 9005-37-2, content 99%;

[0053] 9. Polyvinyl alcohol: PVA 17-99H;

[0054] 10. Polyether-modified polydimethylsiloxane: Greenlink, JH-3667;

[0055] 11. Polyethylene glycol diglycidyl ether: Kemic, CAS No. 39443-66-8, epoxy value 0.52.

[0056] Example of preparation of pretreated cuprammonium fiber

[0057] Preparation Example 1

[0058] Preparation Example 1 discloses a pretreated cuprammonium fiber, which is prepared by the following steps:

[0059] A1. Add 1 kg of ammonium persulfate, 1 kg of disodium sulfosuccinate monoester and 2 kg of ammonium dodecyl sulfate to 80 kg of water, stir well, then add 5.05 kg of cuprammonium fiber, mix and stir for 20-30 min to obtain a cuprammonium fiber dispersion.

[0060] A2. Add 5 kg of polyvinyl alcohol as a stabilizer and 12 kg of polyether-modified polydimethylsiloxane as a dispersant to the cuprammonium fiber dispersion, heat to 42°C and mix for 10 min, then filter, wash with water 2-3 times, and dry at 70°C to obtain pretreated cuprammonium fiber.

[0061] Preparation Examples 2-3

[0062] The difference between Preparation Example 2-3 and Preparation Example 1 lies in the amount of raw materials used and the preparation conditions, as detailed in Table 1 below.

[0063] Table 1. Raw material amounts and preparation conditions for preparation examples 1-3

[0064]

[0065]

[0066] Preparation Example 4

[0067] The difference between Preparation Example 4 and Preparation Example 1 is that the stabilizer is different. The stabilizer in Preparation Example 4 is composed of propylene glycol alginate and polyvinyl alcohol, with a weight ratio of propylene glycol alginate to polyvinyl alcohol of 1:0.5. Everything else is the same as in Preparation Example 1.

[0068] Preparation Example 5

[0069] The difference between Preparation Example 5 and Preparation Example 1 is that the weight ratio of propylene glycol alginate to polyvinyl alcohol is 1:1, while the rest is the same as Preparation Example 1.

[0070] Preparation Example 6

[0071] The difference between Preparation Example 6 and Preparation Example 5 is that propylene glycol alginate is replaced with an equal amount of hydroxyethyl cellulose, while the rest is the same as Preparation Example 1.

[0072] Preparation Example 7

[0073] The difference between Preparation Example 7 and Preparation Example 5 is that the dispersant is different. The dispersant in Preparation Example 6 is composed of polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether, with a weight ratio of 1:1. The other components are the same as in Preparation Example 5.

[0074] Preparation Example 8

[0075] The difference between Preparation Example 8 and Preparation Example 5 is that the weight ratio of polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether is 1:2, while the rest is the same as Preparation Example 5.

[0076] Preparation Example 9

[0077] The difference between Preparation Example 9 and Preparation Example 8 is that polyethylene glycol diglycidyl ether is replaced with polyethylene glycol 400 in equal amounts, otherwise the same as Preparation Example 8.

[0078] Preparation Example 10

[0079] The difference between Preparation Example 10 and Preparation Example 1 is that ammonium dodecyl sulfate is replaced with disodium sulfosuccinate monoester in equal amounts, while the rest is the same as Preparation Example 1.

[0080] Preparation of Comparative Example 1

[0081] The difference between Comparative Example 1 and Preparation Example 1 is that the amount of stabilizer used is 2 kg and the amount of dispersant used is 15 kg, while the rest is the same as Preparation Example 1.

[0082] Example

[0083] Example 1

[0084] Example 1 discloses a moisture-wicking and breathable fabric, which consists of an outer layer and an inner layer bonded together. The outer layer is woven from a first blended yarn, and the inner layer is woven from a second blended yarn. The first blended yarn is made of the following fiber blends in weight percentages: 52% acrylic fiber, 22% viscose fiber, 10% cupro fiber, and 16% spandex fiber.

[0085] The second blended yarn is made from the following fiber blends by weight percentage: 58.5% acrylic fiber, 15% viscose fiber, 15.5% spandex fiber, 8% cupro fiber, and 3% wool.

[0086] This moisture-wicking and breathable fabric is produced by the following steps:

[0087] S1. Acrylic fiber, viscose fiber, cupro fiber and spandex fiber are blended in the above amount to obtain a first blended yarn. The specification of the first blended yarn is 30D. The first blended yarn is knitted in the weft direction to obtain the surface layer.

[0088] S2. Acrylic fiber, viscose fiber, cupro fiber, spandex fiber and wool are blended in the above proportions to obtain a second blended yarn. The specification of the second blended yarn is 20D. The second blended yarn is then weft-knitted to obtain the inner layer.

[0089] S3. Bond the top and inner layers together using polyurethane hot melt adhesive. The amount of polyurethane hot melt adhesive applied is 8g / m². 2 The polyurethane hot melt adhesive is a commercially available polyurethane hot melt adhesive for fabric bonding, and the model is not limited. A moisture-wicking and breathable fabric is made using this adhesive. In this embodiment, the weight of the moisture-wicking and breathable fabric is 280g / m².

[0090] Example 2-3

[0091] The difference between Examples 2-3 and Example 1 is that the amount of raw materials used is different, as detailed in Table 2 below.

[0092] Table 2 Preparation parameters for Examples 1-3

[0093]

[0094]

[0095] Example 4-14

[0096] The difference between Examples 4-14 and Example 2 is that the source of the cupro fiber is different, as detailed in Table 3 below.

[0097] Table 3. Source of cuprammonium fiber in Examples 4-14

[0098] Example Preparation Example Example 4 Preparation Example 1 Example 5 Preparation Example 2 Example 6 Preparation Example 3 Example 7 Preparation Example 4 Example 8 Preparation Example 5 Example 9 Preparation Example 6 Example 10 Preparation Example 7 Example 11 Preparation Example 8 Example 12 Preparation Example 9 Example 13 Preparation Example 10 Example 14 Preparation of Comparative Example 1

[0099] Comparative Example

[0100] Comparative Example 1

[0101] The difference between Comparative Example 1 and Example 1 is that the cupro fiber in the second blended yarn is replaced with an equal amount of viscose fiber, while the rest is the same as in Example 1.

[0102] Comparative Example 2

[0103] The wool in the second blended yarn was replaced with an equal amount of Modal fiber, which was sourced from Lenzing and had a fineness of 1-1.5 dtex and a length of 35-40 mm; otherwise, it was the same as in Example 1.

[0104] Performance testing was conducted on the moisture-wicking and breathable fabrics prepared in Examples 1-14 and Comparative Examples 1-2 as follows:

[0105] 1. Moisture absorption and perspiration test

[0106] According to the test method in GB / T 21655.2-2019, test the water absorption rate A (unit: % / s), and record the test results;

[0107] 2. Breathability test

[0108] According to the test method in GB / T 5453-1997, test the air permeability (unit: mm / s), test and record the test results; 3. Thermal insulation test:

[0109] The test shall be conducted according to Method A in GB / T 11048-1989, and the heat preservation rate (unit: %) shall be tested and the test results recorded.

[0110] 4. Resilience test:

[0111] According to the test method in FZ / T 70006-2022, test the elastic recovery rate (unit: %) after a single tensile stress, and record the test results.

[0112] The following are the performance test data of the moisture-wicking and breathable fabrics prepared in Examples 1-14 and Comparative Examples 1-2, as detailed in Table 4 below.

[0113] Table 4 Performance test data of Examples 1-14 and Comparative Examples 1-2

[0114]

[0115]

[0116] Based on Examples 1-3 and Comparative Examples 1-2, and in conjunction with Table 4, it can be seen that using a blend of acrylic fiber, viscose fiber, cupro fiber, spandex fiber, and wool in a more optimal ratio as the inner layer fabric results in a breathable fabric with better moisture absorption and breathability, warmth retention, and resilience. In Comparative Example 1, cupro fiber was replaced with viscose fiber, and in Comparative Example 2, wool was replaced with modal fiber, resulting in a decrease in the moisture absorption and breathability, warmth retention, and resilience of the resulting breathable fabric.

[0117] As can be seen from Examples 1-3 and Examples 4-14 and Table 4, using the pretreated cupro fiber of this application can further improve the moisture absorption, breathability, heat retention and resilience of the resulting breathable fabric.

[0118] Compared to Examples 4-6, Examples 7-8 used a more optimal ratio of propylene glycol alginate and polyvinyl alcohol as stabilizers. In Example 9, propylene glycol alginate was replaced with hydroxyethyl cellulose. The data shows that the breathable fabrics in Examples 7-8 performed significantly better than those in Examples 4-6 and Example 9. This indicates that the optimal ratio of propylene glycol alginate and polyvinyl alcohol has a good synergistic effect, which can better improve the adhesion and penetration performance of cupro fibers, thereby improving the moisture absorption, breathability, heat retention and resilience of the resulting breathable fabric.

[0119] Compared to Examples 7-8, Examples 10-11 further used polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether in a more optimized ratio as dispersants. In Example 12, polyethylene glycol 400 was used to replace polyethylene glycol diglycidyl ether. In Example 14, the stabilizer was reduced and the dispersant was increased. As can be seen from the above data, the performance of the breathable fabric in Examples 10-11 is significantly better than that of the breathable fabric in Examples 7-8, 12, and 14. This indicates that the more optimized ratio of polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether has a better synergistic effect and can work together with the stabilizer to improve the moisture absorption, breathability, heat retention, and resilience of the resulting breathable fabric.

[0120] Compared to Example 4, Example 13 replaced ammonium dodecyl sulfate with disodium sulfosuccinate monoester, resulting in a decrease in the performance of the breathable fabric. This may be due to a reduction in the wetting effect on the surface of cupro fibers, which in turn reduces the efficiency of the dispersant and stabilizer in promoting the spread and bulkiness of the cupro fibers.

[0121] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A breathable fabric that wicks away moisture and perspiration, characterized in that, The product comprises an outer layer and an inner layer that are bonded together. The outer layer is woven from a first blended yarn, which is made of the following fiber blends by weight percentage: 52-56% acrylic fiber, 18-22% viscose fiber, 10-14% cupro fiber, and 12-16% spandex fiber. The inner layer is woven from a second blended yarn, which is made of the following fiber blends by weight percentage: 58.5-62.5% acrylic fiber, 10-15% viscose fiber, 11.5-15.5% spandex fiber, 8-12% cupro fiber, and 3-4% wool. The cupro fiber is a pretreated cupro fiber, which is obtained by pretreating cupro fiber from the following raw materials in parts by weight: 1-3 parts of ammonium persulfate 1-2 parts of disodium sulfosuccinate monoester 1.5-2.5 parts of ammonium dodecyl sulfate Stabilizer 5-10 parts 6-12 parts of dispersant 80-120 parts water; The stabilizer is composed of propylene glycol alginate and polyvinyl alcohol in a weight ratio of 1:(0.5-1); The dispersant is composed of polyether-modified polydimethylsiloxane and polyethylene glycol diglycidyl ether in a weight ratio of 1:(1-2).

2. The breathable fabric for wicking away moisture and perspiration according to claim 1, characterized in that, The pretreated cuprammonium fiber is obtained by the following steps: A1. Add ammonium persulfate, disodium sulfosuccinate monoester and ammonium dodecyl sulfate to water, stir evenly, then add cuprammonium fiber, mix and stir for 20-30 minutes to obtain cuprammonium fiber dispersion; A2. Add stabilizer and dispersant to cuprammonium fiber dispersion, heat and mix, then filter, wash with water and dry to obtain pretreated cuprammonium fiber.

3. The moisture-wicking and breathable fabric according to claim 2, characterized in that, The mixing temperature in step A2 is 42-48℃, and the mixing time is 10-20 min.

4. The moisture-wicking and breathable fabric according to claim 1, characterized in that, The first blended yarn has a specification of 30-50D, and the second blended yarn has a specification of 20-30D.

5. The breathable fabric for wicking away moisture and perspiration according to claim 1, characterized in that, The moisture-wicking and breathable fabric has a weight of 280-320 g / m². 2 .

6. A method for preparing a moisture-wicking and breathable fabric according to any one of claims 1-5, characterized in that, The preparation steps include the following: S1. Acrylic fiber, viscose fiber, cupro fiber and spandex fiber are blended to obtain a first blended yarn, and the first blended yarn is woven to obtain a surface layer. S2. Acrylic fiber, viscose fiber, cupro fiber, spandex fiber and wool are blended to obtain a second blended yarn, and the second blended yarn is woven to obtain the inner layer. S3. The outer and inner layers are bonded together to create a breathable fabric that wicks away moisture and perspiration.

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