Preparation process of moisture absorption and sweat releasing elastic woven fabric

Abstract

The invention relates to the technical field of woven fabrics, and particularly discloses a preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric. The invention relates to a preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric. The preparation process comprises the following steps: preparing yarns, weaving gray cloth, desizing, pre-preparing gray cloth, dyeing, cleaning, drying and absorbing, discharging and finishing, a padding finishing mode is adopted for absorption and discharge finishing, and a formula of finishing liquid comprises silk fibroin modified polyurethane, a polyether polyester block copolymer, amino silicon oil, organic acid and water. The moisture-absorbing and sweat-releasing elastic woven fabric manufactured by adopting the preparation process disclosed by the invention not only remarkably improves the air permeability and moisture absorption performance of the fabric and obviously improves the wearing comfort, but also further improves the washability and softness of the woven fabric.

Description

Technical Field

[0001] The present invention relates to the technical field of woven fabrics, and in particular to a preparation process of a moisture-absorbing, sweat-wicking and elastic woven fabric. Background Art

[0002] Woven fabrics are formed by the interweaving of warp and weft using a loom, and the fabric surface is smooth and shiny. Woven plain fabrics have been widely used in the fields of clothing, home textiles, etc. due to their tight structure, excellent snagging and pilling resistance, and outstanding fabric strength performance.

[0003] However, traditional woven plain fabrics usually have problems such as insufficient elasticity, a stiff handfeel, poor breathability, and poor moisture-absorbing and sweat-wicking performance, which limit the demand for woven fabrics in the field of clothing with higher comfort. Especially in scenarios such as sportswear and casual wear where there are high demands for elasticity, breathability, and moisture-absorbing and sweat-wicking performance, the performance of traditional woven fabrics is difficult to meet the expectations of consumers. Summary of the Invention

[0004] In order to improve the breathability and moisture-absorbing performance of woven fabrics and enhance wearing comfort, the present application provides a preparation process of a moisture-absorbing, sweat-wicking and elastic woven fabric.

[0005] The preparation process of a moisture-absorbing, sweat-wicking and elastic woven fabric provided by the present application adopts the following technical scheme: A preparation process of a moisture-absorbing, sweat-wicking and elastic woven fabric successively includes the following technological processes: yarn preparation → weaving of grey fabric → desizing → pre-setting of grey fabric → dyeing → washing → drying → moisture-absorbing and sweat-wicking finishing; The moisture-absorbing and sweat-wicking finishing adopts a padding finishing method, the fabric liquor pickup rate is 55%-65%, the roller pressure is 2-4 MPa, and the formulation of the finishing liquor includes: 8-12 g / L of silk fibroin-modified polyurethane, 3-7 g / L of polyether-polyester block copolymer, 13-17 g / L of amino silicone oil, 0.2-0.4 g / L of organic acid, and the balance is water.

[0006] By adopting the above technical solutions, the present application significantly improves the air permeability and moisture absorption performance of the woven fabric through optimizing the post-treatment process of the woven fabric, thus significantly improving the wearing comfort. Specifically, by optimizing the moisture management finishing, a polyether-polyester block copolymer and silk fibroin-modified polyurethane are added to the finishing solution. The polyether-polyester block copolymer and silk fibroin-modified polyurethane act synergistically to achieve a good combination of the moisture absorption and wash resistance of the fabric. Among them, the molecular structure of the polyether-polyester block copolymer includes a hydrophilic polyether segment and a polyester fixing segment. The polyester segment undergoes eutectic melting with polyester fiber, and the polyether segment extends to the outside of the fiber, endowing the polyester fiber with excellent moisture absorption performance; the silk fibroin-modified polyurethane binds to the fiber through the polyether segment exposed on the fiber surface of the polyether-polyester block copolymer and has a certain binding fastness, forming a film on the fiber surface, which not only improves the moisture absorption and sweat discharge performance of the woven fabric, but also improves the wash resistance. In addition, when the two are used in combination with amino silicone oil, the abrasion resistance and softness of the woven fabric can be increased, and the organic acid is used as an auxiliary agent to optimize the stability of the finishing solution and adjust the pH value of the fabric body.

[0007] Preferably, the raw materials for preparing the silk fibroin-modified polyurethane include thermoreactive polyurethane, silk fibroin and tannic acid, and the weight ratio of the thermoreactive polyurethane, silk fibroin and tannic acid is 1:(0.8 - 1):(0.12 - 0.14).

[0008] Preferably, the preparation method of the silk fibroin-modified polyurethane is as follows: Add the thermoreactive polyurethane to the solvent, stir well and heat to 30 - 40 °C, then add tannic acid and silk fibroin, and continue to stir for 20 - 30 min to obtain the silk fibroin-modified polyurethane.

[0009] By adopting the above technical solutions, the thermoreactive polyurethane and silk fibroin undergo a crosslinking reaction under the action of tannic acid, thereby forming a functional polyurethane material with excellent moisture absorption and sweat discharge performance. Specifically, the tannic acid molecule contains phenolic hydroxyl groups, which can respectively undergo condensation reactions with some isocyanate groups in the molecular structure of the thermoreactive polyurethane and the amino groups on the silk fibroin to form a stable binding system. The finally formed silk fibroin-modified polyurethane can cooperate with the polyether-polyester block copolymer to improve the moisture absorption and sweat discharge function of the fabric, while enhancing its wash resistance and improving the durability of the fabric's moisture absorption and sweat discharge function.

[0010] Preferably, the organic acid includes one or more mixtures of DL-hydroxybutanedioic acid, citric acid, tartaric acid, lactic acid.

[0011] Preferably, the organic acid is DL-hydroxybutanedioic acid.

[0012] By adopting the above technical solution, by adding organic acid to the finishing liquid, the stability of the finishing liquid can be effectively improved, and the adhesion uniformity of the finishing liquid on the fabric can be enhanced. Specifically, DL-hydroxybutanedioic acid has the best effect on optimizing the pH environment of the finishing liquid and maintaining the stability of the finishing liquid.

[0013] Preferably, the yarn is made of polyester low elastic yarn covering spandex yarn, and the proportion of polyester in the yarn is 86%-90%, and the proportion of spandex is 10-14%.

[0014] Preferably, the yarn is made of 45D / 74F semi-dull polyester low elastic yarn covering 20D / 2F spandex yarn, and the proportion of polyester in the yarn is 88%, and the proportion of spandex is 12%.

[0015] By adopting the above technical solution, using polyester low elastic yarn covering spandex yarn can improve the color uniformity and quality stability of the fabric surface, and significantly enhance the elasticity of the fabric in four directions.

[0016] Preferably, the specific steps of the desizing process include: padding the grey fabric with hot water at 70-80°C, padding with amylase solution, the bath ratio is 1:(2-4), piling for 10-40 min, steaming at 100-102°C for 3-8 min, and washing with water at 80-95°C.

[0017] By adopting the above technical solution, the desizing process can effectively remove the sizing impurities on the grey fabric and improve the quality of subsequent processing steps. Specifically, by padding the grey fabric with hot water and amylase solution in sequence and through appropriate piling time and high-temperature steaming treatment, the sizing can be completely decomposed and removed, making the fabric softer and flatter.

[0018] Preferably, the dyeing is carried out by the exhaustion method, the bath ratio is 1:(15-30), the temperature is 120-130°C, and the dyeing bath solution formula includes: disperse dye 1-10 wt%, leveling agent 0.5-3 g / L, dispersant 1-3 g / L, pH regulator 0.3-2 g / L, and the balance is water.

[0019] By adopting the above technical solution, using the above bath solution formula and the exhaustion method can make the dye penetrate more evenly into the fabric fibers, ensuring the consistency and saturation of the dyeing effect.

[0020] Preferably, the cleaning is carried out by the soaking method, the bath ratio is 1:(15-30), and the cleaning bath solution formula includes: caustic soda 2-4 wt%, sodium hydrosulfite 3-5 wt%, and the balance is water.

[0021] By adopting the above technical solution, the combination of caustic soda and hydrogen peroxide can effectively remove the impurities and residues on the fabric, ensuring the high efficiency of the cleaning process and avoiding damage to the fabric fibers at the same time.

[0022] In a second aspect, a moisture-absorbing and sweat-wicking elastic woven fabric provided by the present application adopts the following technical solution: A moisture-absorbing and sweat-wicking elastic woven fabric is prepared by using the preparation process of a moisture-absorbing and sweat-wicking elastic woven fabric as described in the first aspect.

[0023] By adopting the above technical solution, the present application uses the preparation process of a moisture-absorbing and sweat-wicking elastic woven fabric, overcomes the disadvantages of traditional woven fabrics such as hard handfeel and poor air permeability, greatly improves the moisture absorption and air permeability and washability of the fabric, and at the same time endows the fabric with a dry, fluffy and soft handfeel.

[0024] The present application has the following beneficial effects: In the present application, by optimizing the post-treatment process of the woven fabric, especially optimizing the moisture absorption and drainage finishing, a polyether-polyester block copolymer and silk fibroin-modified polyurethane are added to the finishing solution. The polyether-polyester block copolymer and silk fibroin-modified polyurethane act synergistically to achieve a good combination of the moisture absorption and washability of the fabric. Among them, the molecular structure of the polyether-polyester block copolymer includes a hydrophilic polyether chain segment and a polyester fixing chain segment. The polyester chain segment and polyester fiber are co-melted, and the polyether chain segment extends to the outside of the fiber, endowing the polyester fiber with excellent moisture absorption performance; the silk fibroin-modified polyurethane binds to the fiber through the polyether chain segment exposed on the surface of the fiber by the polyether-polyester block copolymer and forms a film on the fiber surface, which not only improves the moisture absorption and sweat-wicking performance of the woven fabric, but also improves the washability. In addition, when the two are used in combination with amino silicone oil, the abrasion resistance and softness of the woven fabric can also be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the knitting structure of the fabric yarn; Figure 2 is the organizational structure diagram of the grey fabric; Figure 3 is an enlarged view of the woven fabric taken under an optical microscope; Figure 4 is a further enlarged schematic diagram of the woven fabric taken under an optical microscope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present application will be further described in detail below with reference to the drawings and embodiments.

[0027] In the following detailed description, the sources of some substances are shown in Table 1.

[0028] Table 1: Embodiment

[0029] Embodiment 1 A preparation process for a moisture-absorbing and sweat-wicking elastic woven fabric, which successively undergoes the following technological processes: yarn preparation → knitting greige fabric → desizing → pre-setting greige fabric → dyeing → washing → drying → moisture-absorbing and sweat-wicking finishing.

[0030] Among them, the yarn preparation step is specifically as follows: Warping, sizing, and beam forming are carried out to prepare the yarns for fabric weaving. Both the warp yarns and weft yarns use the same kind of 45D / 74F semi-dull polyester low-elastic yarn covering 20D / 2F spandex yarn, with a composition of 88% polyester and 12% spandex.

[0031] Among them, the knitting greige fabric step is specifically as follows: A rapier loom is used to thread and weave the prepared yarns. The weaving structure adopts 1 / 2 twill, and a greige fabric with a width of 147 cm and a weight of 107 g / m 2 is obtained. The specific weaving structure refers to Figure 1 and Figure 2 . The enlarged drawing of the fabric refers to Figure 3 and Figure 4 .

[0032] Among them, the desizing step is specifically as follows: First, the greige fabric is padded in hot water at 70°C, with a liquor ratio of 1:2, to preliminarily soften the sizing agent using high-temperature hot water. Subsequently, the greige fabric is padded in an amylase solution, with a liquor ratio of 1:2 and an amylase concentration of 2 g / L, piled for 10 min, steamed at 100°C for 3 min, and then padded again in hot water at 80°C for washing. The greige fabric is in a flat and relaxed state throughout the process to achieve tension-free and environmentally friendly desizing, and then dried to obtain the greige fabric before pre-setting.

[0033] Among them, the pre-setting greige fabric step is specifically as follows: An open-width stenter is used to carry out lateral stretching and longitudinal stretching on the greige fabric, and at the same time, high-temperature pre-setting of the greige fabric is carried out in the stenter cabinet. The heat setting temperature is 200°C, and the effective setting time is 15 s. After pre-setting, a greige fabric with a width of 155 cm and a weight of 112 g / m 2 is obtained.

[0034] Among them, the dyeing step is specifically as follows: The dyeing vat is filled with water, with a liquor ratio of 1:15. The fabric is put into the dyeing vat, and the secondary vat returns water. 0.5 g / L of pH regulator is added and stirred evenly, then directly pumped into the dyeing vat. The secondary vat is filled with clear water, and then 2 wt% of the previously prepared disperse dye C.I. Disperse Blue 79 and 3 wt% of C.I. Disperse Red 167 are added, stirred evenly, and pumped into the dyeing vat uniformly in 40 min. After running for 20 min, the secondary vat is filled with clear water again, 0.5 g / L of leveling agent and 1 g / L of dispersant are added, stirred evenly, and pumped into the dyeing vat uniformly in 20 min. After running for 10 min, heating starts, and the temperature is raised to 130°C. After holding for 30 min, the temperature is lowered and the water is drained to complete the dyeing.

[0035] Among them, the cleaning steps are as follows: The dyeing vat is filled with water, and the auxiliary vat returns water. The liquor ratio is controlled at 1:15. 2 wt% of caustic soda and 3 wt% of sodium hydrosulfite are added. The temperature is raised to 90 °C and kept warm for 10 min. Then the water is drained to complete cleaning and neutralization. The fabric is dried for later finishing and setting.

[0036] Among them, the drying steps are as follows: The fabric after being taken out of the dyeing process is dried. The drying temperature is 105 °C, and the effective baking time is 12 s, obtaining a fabric with a width of 147 cm and a weight of 107 g / m. 2 of the fabric.

[0037] Among them, the moisture absorption and drainage finishing steps are as follows: The open-width stenter is used to impregnate and roll the fabric for finishing. First, the finishing solution is prepared, and then the finishing solution is pumped into the padding trough of the stenter. The fabric passes through the finishing solution and then through the rollers. The liquid pickup rate of the fabric is controlled at 55%. The setting temperature is set at 110 °C, the setting speed is 30 m / min, and the roller pressure is 2 MPa to complete the moisture absorption and drainage finishing.

[0038] Among them, the formula of the finishing solution is as follows: 8 g / L of silk fibroin-modified polyurethane, 3 g / L of polyether-polyester block copolymer, 13 g / L of amino silicone oil, 0.2 g / L of citric acid, and the balance is water.

[0039] Among them, the preparation method of silk fibroin-modified polyurethane is as follows: 100 g of thermoreactive polyurethane is added to 150 mL of N,N-dimethylformamide, stirred well, and heated to 30 °C. Then 12 g of tannic acid and 80 g of silk fibroin are added, and stirring continues for 20 min to obtain silk fibroin-modified polyurethane.

[0040] Example 2 A preparation process of a moisture-absorbing and sweat-wicking elastic woven fabric, which is different from Example 1 in that some parameters are different.

[0041] The following process flows are carried out in sequence: yarn preparation → knitting greige → desizing → pre-setting greige → dyeing → cleaning → drying → moisture absorption and drainage finishing.

[0042] Among them, the yarn preparation steps are as follows: Warping, sizing, and beam forming are carried out to prepare the yarn for fabric weaving. Both the warp yarn and the weft yarn use the same 45D / 74F semi-dull polyester low-elastic yarn coated with 20D / 2F spandex yarn, with a composition of 88% polyester and 12% spandex.

[0043] Among them, the knitting greige steps are as follows: The rapier loom is used to thread and weave the prepared yarns. The weaving structure is 1 / 2 twill, and the fabric with a width of 147 cm and a weight of 107 g / m² is obtained. 2 The grey fabric is as follows. Figure 1 and Figure 2 The relevant fabric pictures are as Figure 3 and Figure 4 .

[0044] Among them, the desizing step is as follows: First, the grey fabric is padded in hot water at 75°C, and the liquor ratio is controlled at 1:3. The sizing agent is preliminarily softened by the high-temperature hot water. Subsequently, the grey fabric is padded in the amylase solution, the liquor ratio is controlled at 1:3, the amylase concentration is 2.5 g / L, and it is piled for 25 min and steamed at 101°C for 5 min. Then it is padded in hot water at 90°C again for cleaning. The grey fabric is in a flat and relaxed state throughout the process, achieving tension-free and environmentally friendly desizing. Then it is dried to obtain the grey fabric before pre-setting.

[0045] Among them, the pre-setting step of the grey fabric is as follows: The grey fabric is horizontally widened and longitudinally stretched using an open-width stenter, and at the same time, high-temperature pre-setting of the grey fabric is carried out in the stenter chassis. The heat setting temperature is 205°C, and the effective setting time is 20 s. After pre-setting, the grey fabric with a width of 155 cm and a weight of 112 g / m² is obtained. 2 of the grey fabric.

[0046] Among them, the dyeing step is as follows: The dyeing vat is filled with water, and the liquor ratio is controlled at 1:20. The fabric is put into the dyeing vat, and the water in the auxiliary vat is returned. 1 g / L of pH regulator is added and stirred evenly, and then directly pumped into the dyeing vat. Then the auxiliary vat is filled with clear water again, and 3 wt% of C.I. Disperse Blue 79 and 4 wt% of C.I. Disperse Red 167, which are prepared in advance, are added and stirred evenly. It is pumped into the dyeing vat at a uniform speed in 40 min. After running for 20 min, the auxiliary vat is filled with clear water, 1.5 g / L of leveling agent and 2 g / L of dispersant are added and stirred evenly. It is pumped into the dyeing vat at a uniform speed in 20 min. After running for 10 min, the temperature is raised. The temperature is raised to 130°C, and after holding for 30 min, the temperature is lowered and the water is drained to complete the dyeing.

[0047] Among them, the cleaning step is as follows: The dyeing vat is filled with water, and the water in the auxiliary vat is returned. The liquor ratio is controlled at 1:20, 3 wt% of caustic soda and 4 wt% of sodium hydrosulfite are added, the temperature is raised to 90°C, and it is held for 10 min, and then the water is drained to complete the cleaning and neutralization. The fabric is dried for later finishing and setting.

[0048] Among them, the drying step is as follows: The fabric after dyeing is dried. The drying temperature is 110°C, and the effective baking time is 15 s, and the fabric with a width of 147 cm and a weight of 107 g / m² is obtained. 2 of the fabric.

[0049] Among them, the suction and drainage finishing steps are as follows: Use an open-width stenter to impregnate and finish the fabric. First, prepare the finishing liquor, then pump the finishing liquor into the padding trough of the stenter. The fabric passes through the finishing liquor and then through the rollers. Control the fabric liquor pickup rate to 60%, set the stenter temperature to 115 °C, the stenter speed to 32 m / min, and the roller pressure to 3 MPa to complete the suction and drainage finishing.

[0050] Among them, the formula of the finishing liquor is as follows: 10 g / L of silk fibroin-modified polyurethane, 5 g / L of polyether-polyester block copolymer, 15 g / L of amino silicone oil, 0.3 g / L of DL-hydroxybutanedioic acid, and the balance is water.

[0051] Among them, the preparation method of silk fibroin-modified polyurethane is as follows: Add 100 g of thermoreactive polyurethane to 150 mL of N,N-dimethylformamide, stir well and mix evenly, heat to 35 °C, then add 13 g of tannic acid and 90 g of silk fibroin, and continue to stir for 25 min to obtain silk fibroin-modified polyurethane.

[0052] Example 3 A preparation process of a moisture-absorbing and sweat-discharging elastic woven fabric, which is different from Example 1 in that some parameters are different.

[0053] Perform the following process flows in sequence: yarn preparation → weaving of grey fabric → desizing → pre-setting of grey fabric → dyeing → washing → drying → suction and drainage finishing.

[0054] Among them, the yarn preparation steps are as follows: Warping, sizing, and beam-forming to prepare the yarn for fabric weaving. Both the warp yarn and the weft yarn use the same 45D / 74F semi-dull polyester low-elastic yarn coated with 20D / 2F spandex yarn, with a composition of 88% polyester and 12% spandex.

[0055] Among them, the steps of weaving the grey fabric are as follows: Use a rapier loom to thread and weave the prepared yarn. The weaving structure uses 1 / 2 twill to obtain a grey fabric with a width of 147 cm and a weight of 107 g / m 2 as follows, and the specific weaving structure is as shown in Figure 1 and Figure 2 , and the relevant fabric pictures are as shown in Figure 3 and Figure 4 .

[0056] Among them, the desizing steps are as follows: First, dip the grey fabric in hot water at 80°C, control the liquor ratio at 1:3.5, and preliminarily soften the sizing agent with high-temperature hot water. Subsequently, dip the grey fabric in the amylase solution, control the liquor ratio at 1:3.5, the amylase concentration at 3 g / L, stack for 40 min, steam at 102°C for 8 min, and then dip again in hot water at 95°C for cleaning. The grey fabric is in a flat and relaxed state throughout the process to achieve tension-free and environmentally friendly desizing. Then, dry it to obtain the grey fabric before sizing.

[0057] Among them, the steps for pre-sizing the grey fabric are as follows: Use a stenter to perform lateral stretching and longitudinal stretching on the grey fabric, and simultaneously conduct high-temperature pre-sizing in the stenter chassis. The heat-setting temperature is 205°C, and the effective setting time is 20 s. After pre-sizing, a grey fabric with a width of 155 cm and a weight of 112 g / m is obtained. 2 of the grey fabric.

[0058] Among them, the dyeing steps are as follows: Fill the dyeing vat with water, control the liquor ratio at 1:25, load the fabric into the dyeing vat, return water from the auxiliary vat, add 1.5 g / L of pH regulator and stir evenly, then directly pump it into the dyeing vat. Then, add clear water to the auxiliary vat again, add 4 wt% of the prepared disperse dye C.I. Disperse Blue 79 and 5 wt% of C.I. Disperse Red 167, stir evenly, and pump it into the dyeing vat at a uniform speed for 40 min. After running for 20 min, add clear water to the auxiliary vat, add 2.5 g / L of leveling agent and 3 g / L of dispersant, stir evenly, pump it into the dyeing vat at a uniform speed for 20 min, run for 10 min, start heating up to 130°C, keep warm for 30 min, then cool down and drain water to complete dyeing.

[0059] Among them, the cleaning steps are as follows: Fill the dyeing vat with water, return water from the auxiliary vat, control the liquor ratio at 1:25, add 4 wt% of caustic soda and 5 wt% of sodium hydrosulfite, heat up to 90°C, keep warm for 10 min, drain water to complete cleaning and neutralization, and dry the fabric for subsequent finishing and setting.

[0060] Among them, the drying steps are as follows: Dry the fabric after dyeing out of the vat. The drying temperature is 115°C, and the effective baking time is 18 s to obtain a fabric with a width of 147 cm and a weight of 107 g / m. 2 of the fabric.

[0061] Among them, the moisture management finishing steps are as follows: Use a stenter to perform padding finishing on the fabric. First, prepare the finishing solution, then pump the finishing solution into the padding trough of the stenter. The fabric passes through the finishing solution and then through the rollers. Control the fabric liquor pickup rate at 65%, set the setting temperature at 120°C, the setting speed at 34 m / min, and the roller pressure at 4 MPa to complete the moisture management finishing.

[0062] Among them, the formulation of the finishing solution is as follows: 12 g / L of silk fibroin-modified polyurethane, 7 g / L of polyether-polyester block copolymer, 17 g / L of amino silicone oil, 0.4 g / L of tartaric acid, and the balance is water.

[0063] Among them, the preparation method of the silk fibroin-modified polyurethane is as follows: Add 100 g of thermoreactive polyurethane to 150 mL of N,N-dimethylformamide, stir well and mix evenly, heat to 35 °C, then add 14 g of tannic acid and 100 g of silk fibroin, and continue to stir for 30 min to obtain silk fibroin-modified polyurethane.

[0064] Comparative example Comparative example 1 A preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric, which is different from that of Example 2 in that the silk fibroin-modified polyurethane is replaced by thermoreactive polyurethane.

[0065] Comparative example 2 A preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric, which is different from that of Example 2 in that the silk fibroin-modified polyurethane is replaced by a polyether-polyester block copolymer.

[0066] Comparative example 3 A preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric, which is different from that of Example 2 in that the polyether-polyester block copolymer is replaced by silk fibroin-modified polyurethane.

[0067] Comparative example 4 A preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric, which is different from that of Example 2 in that the silk fibroin-modified polyurethane is replaced by polymethylhydrosiloxane.

[0068] Comparative example 5 A preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric, which is different from that of Example 2 in that the polyether-polyester block copolymer is replaced by polymethylhydrosiloxane.

[0069] Comparative example 6 A preparation process of a moisture-absorbing and sweat-releasing elastic woven fabric, which is different from that of Example 2 in that the silk fibroin-modified polyurethane and the polyether-polyester block copolymer are replaced by polymethylhydrosiloxane.

[0070] Performance detection test Samples: Woven fabrics of Examples 1-3 and Comparative Examples 1-6.

[0071] 1. Colorfastness test: The samples of Examples 1-3 and Comparative Examples 1-6 were subjected to colorfastness test, and the results were recorded in Table 2.

[0072] Table 2 2. The samples in Examples 1-3 and Comparative Examples 1-6 were tested for elastic fabrics using an isometric elongation tester, and the moisture permeability rate of the fabrics was tested in a YG501D type moisture permeability test chamber. The results are recorded in Table 3.

[0073] Table 3 From the data in Example 2, Comparative Example 1, and Tables 1 and 2, it can be seen that the polyurethane in the finishing solution was not modified and did not crosslink with the fibers, resulting in poor moisture absorption and wash resistance. In this application, silk fibroin was used to modify the polyurethane, forming a film on the surface of the polyurethane fiber, endowing the woven fabric with moisture absorption and breathability, and improving the wash resistance at the same time.

[0074] From the data in Example 2, Comparative Examples 2-3, and Tables 1 and 2, it can be seen that only one of the two raw materials, silk fibroin-modified polyurethane and polyether-polyester block copolymer, was selected in the finishing solution, resulting in poor moisture absorption and wash resistance of the fabric. In this application, the synergistic effect of polyether-polyester block copolymer and silk fibroin-modified polyurethane can achieve a good combination of moisture absorption and wash resistance of the fabric.

[0075] From the data in Example 2, Comparative Examples 4-6, and Tables 1 and 2, it can be seen that in Comparative Examples 4-5, either silk fibroin-modified polyurethane or polyether-polyester block copolymer in the finishing solution was paired with polymethylhydrogensiloxane, and the finishing solution in Comparative Example 6 did not contain silk fibroin-modified polyurethane and polyether-polyester block copolymer and was replaced with polymethylhydrogensiloxane, which would reduce the moisture absorption and wash resistance of the fabric. In this application, polyether-polyester block copolymer and silk fibroin-modified polyurethane were used in combination with amino silicone oil, significantly improving the breathability and moisture absorption performance of the fabric and significantly improving the wearing comfort.

[0076] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A process for preparing a moisture wicking elastic woven fabric, characterized in that: The process includes the following steps: yarn preparation → weaving grey cloth → desizing → pre-sizing → dyeing → cleaning → drying → suction and discharge finishing; The suction and discharge finishing adopts a padding finishing method, the fabric liquid carrying rate is 55%-65%, the roller pressure is 2-4MPa, and the formula of the finishing liquid includes: silk fibroin modified polyurethane 8-12 g / L, polyether polyester block copolymer 3-7 g / L, amino silicone oil 13-17g / L, organic acid 0.2-0.4g / L, and the balance is water.

2. The process for preparing a moisture wicking elastic woven fabric according to claim 1, characterized in that: The raw materials for preparing the silk fibroin modified polyurethane include thermo-reactive polyurethane, silk fibroin and tannic acid, and the weight ratio of the thermo-reactive polyurethane, silk fibroin and tannic acid is 1:(0.8-1):(0.12-0.14).

3. The process for preparing a moisture wicking elastic woven fabric according to claim 2, characterized in that: The preparation method of the silk fibroin modified polyurethane is: The heat-reactive polyurethane is added to the solvent, fully stirred and mixed, and heated to 30-40° C., and then tannic acid and silk fibroin are added, and stirring is continued for 20-30 minutes to obtain silk fibroin-modified polyurethane.

4. The process for preparing a moisture wicking elastic woven fabric according to claim 1, characterized in that: The organic acid includes a mixture of one or more of DL-hydroxysuccinic acid, citric acid, tartaric acid and lactic acid.

5. The process for preparing a moisture wicking elastic woven fabric according to claim 4, characterized in that: The organic acid is DL-hydroxysuccinic acid.

6. The process for preparing a moisture wicking elastic woven fabric according to claim 1, characterized in that: The yarn is made of polyester low-elastic yarn covered with spandex yarn, in which polyester accounts for 86%-90% and spandex accounts for 10-14%.

7. The process for preparing a moisture wicking elastic woven fabric according to claim 1, characterized in that: The specific steps of the desizing process include: dipping the grey cloth in hot water at 70-80°C and dipping in amylase solution in turn, with the bath ratio being 1:(2-4), stacking for 10-40 minutes, steaming at 100-102°C for 3-8 minutes, and washing with water at 80-95°C.

8. The process for preparing a moisture wicking elastic woven fabric according to claim 1, characterized in that: The dyeing adopts an immersion dyeing method, with a bath ratio of 1: (15-30), a temperature of 120-130° C., and a dyeing bath formula comprising: 1-10wt% disperse dye, 0.5-3g / L leveling agent, 1-3g / L dispersant, 0.2-3g / L pH adjuster, and the balance is water.

9. The process for preparing a moisture wicking elastic woven fabric according to claim 1, characterized in that: The cleaning is carried out by immersion, with a bath ratio of 1: (15-30), and the cleaning bath formula includes: 2-4wt% caustic soda, 3-5wt% hydrosulfite, and the balance is water.

10. A woven fabric obtained by the preparation process of a moisture wicking elastic woven fabric according to any one of claims 1 to 9.

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