Moisture-absorbing and quick-drying cotton cloth and processing technology thereof

Abstract

The application relates to the technical field of polyester cotton cloth, in particular to moisture-absorbing and quick-drying polyester cotton cloth and a processing technology thereof. The polyester cotton cloth is mixed with a sodium hydroxide solution, washed and dried to obtain hydroxylated polyester cotton cloth; the hydroxylated polyester cotton cloth is placed in a double-bond-containing finishing liquid for padding treatment, pre-dried and cured to obtain modified polyester cotton cloth; the modified polyester cotton cloth is immersed in a thiol-containing finishing liquid and subjected to click reaction under ultraviolet light irradiation, washed and dried to obtain moisture-absorbing and quick-drying polyester cotton cloth. The moisture-absorbing and quick-drying polyester cotton cloth prepared by the application has excellent moisture-absorbing and quick-drying performance and excellent antibacterial performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polyester cotton cloth, in particular to a moisture-absorbing and quick-drying polyester cotton cloth and a processing technology thereof. BACKGROUND

[0002] With people's increasing concern about the comfort and functionality of clothing, the demand for moisture-absorbing and quick-drying fabrics has gradually increased. Polyester cotton cloth, as a composite material combining polyester and cotton fibers, has become one of the most popular functional fabrics on the market because it not only has the comfort of cotton fibers but also has the quick-drying performance of polyester.

[0003] Although the hydrophilicity of polyester cotton cloth can be improved through modification treatment, many existing technologies still cannot significantly improve its moisture absorption while maintaining the unique quick-drying performance of polyester, resulting in limited comfort in high-intensity exercise or high-temperature environments. Many hydrophilic treatment methods may affect the durability of polyester cotton cloth, and the moisture-absorbing and quick-drying performance of polyester cotton cloth may decrease significantly after multiple washes, affecting its long-term use effect. Some polyester cotton cloth may cause the fabric to become hard after quick-drying treatment, affecting the comfort of wearing.

[0004] Therefore, we propose a moisture-absorbing and quick-drying polyester cotton cloth and a processing technology thereof. SUMMARY

[0005] The purpose of the present application is to provide a moisture-absorbing and quick-drying polyester cotton cloth and a processing technology thereof to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A processing technology of a moisture-absorbing and quick-drying polyester cotton cloth, comprising the following steps:

[0008] Step S1: uniformly mix polyester cotton cloth and sodium hydroxide solution, stir at 70-80℃ for 30-50min, after washing and drying, obtain hydroxylated polyester cotton cloth;

[0009] Step S2: immerse the hydroxylated polyester cotton cloth in a double bond finishing liquid for padding treatment, pre-dry at 70-80℃ for 10-15min, and bake at 130-140℃ for 3-5min to obtain modified polyester cotton cloth;

[0010] Step S3: immerse the modified polyester cotton cloth in a thiol finishing liquid and react under ultraviolet light irradiation for 30-50min, after washing and drying, obtain moisture-absorbing and quick-drying polyester cotton cloth.

[0011] Further, in step S1, the bath ratio of polyester cotton cloth to sodium hydroxide solution is 1:(40-50), and the concentration of sodium hydroxide solution is 3-5mol / L.

[0012] Further, in the step S2, the preparation method of the double-bond-containing finishing liquid is as follows:

[0013] Step (1): Under the protection of nitrogen, mix itaconic acid, butanediol, polytetrahydrofuran ether diol and hydrolysis-resistant titanium catalyst uniformly, and react at 130-140℃ for 2-4h, continue to heat to 170-180℃, react for 5-7h, add tetra-n-butyl titanate, continue to heat to 220-230℃, vacuumize, react for 8-10h, and cool to room temperature to obtain double-bond-containing polyester ether polyol;

[0014] Step (2): Under the protection of nitrogen, mix isophorone diisocyanate and acetone uniformly, heat to 40-50℃, drop the mixed solution of double-bond-containing polyester ether polyol and acetone, drop for 1-2h, add dibutyltin dilaurate, continue to heat to 55-65℃, react for 1-2h, add methyl ethyl ketone oxime for end-capping reaction for 70-90min to obtain isocyanate end-capped polyester ether polyol;

[0015] Step (3): Mix the isocyanate end-capped polyester ether polyol and deionized water uniformly to obtain the double-bond-containing finishing liquid.

[0016] Further, in the step (1), the mass ratio of itaconic acid, butanediol and polytetrahydrofuran ether diol is 1:(0.4-0.5):(0.6-0.7).

[0017] Further, in the step (1), the amount of hydrolysis-resistant titanium catalyst is 0.005-0.02% of the total mass of itaconic acid, butanediol and polytetrahydrofuran ether diol, and the amount of tetra-n-butyl titanate is 0.03-0.05% of the total mass of itaconic acid, butanediol and polytetrahydrofuran ether diol.

[0018] Further, in the step (2), the mass ratio of isophorone diisocyanate, acetone, double-bond-containing polyester ether polyol, dibutyltin dilaurate and methyl ethyl ketone oxime is 1:(4-6):(1.5-3.0):(0.01-0.03):(1.0-1.5).

[0019] Further, in the step (3), the solid content of the double-bond-containing finishing liquid is 10-20%.

[0020] Further, the process conditions of the padding treatment are as follows: one dip and one roll, the amount of double-bond-containing finishing liquid is 10-20g / L, and the roll liquid rate is 75-85%.

[0021] Further, in the step S3, the preparation method of the thiol-containing finishing liquid is as follows:

[0022] Step A: under the protection of nitrogen, 3-mercapto propyl methyl dimethoxy silane, deionized water and isopropyl alcohol are mixed uniformly, heated to 60-70 DEG C, hydroxyl silicone oil and tetramethyl ammonium hydroxide are mixed uniformly, reacted for 4-6 h, distilled under reduced pressure to obtain thiol-containing organosilicon;

[0023] Step B: under the protection of nitrogen, isophorone diisocyanate and acetonitrile are mixed uniformly, choline chloride and dibutyl tin dilaurate are added, reacted for 1-2 h at 40-50 DEG C, then the thiol-containing organosilicon is added dropwise, dropwise for 1-2 h, and the reaction is continued for 2-4 h, distilled under reduced pressure to obtain organosilicon quaternary ammonium salt;

[0024] Step C: the organosilicon quaternary ammonium salt and the photoinitiator are ultrasonically dispersed in the thiol-containing finishing liquid.

[0025] Further, in step A, the mass ratio of 3-mercapto propyl methyl dimethoxy silane, deionized water, isopropyl alcohol, hydroxyl silicone oil and tetramethyl ammonium hydroxide is 1: (2-3): (7-8): (65-66): (0.3-0.5).

[0026] Further, in step B, the mass ratio of isophorone diisocyanate, acetonitrile, choline chloride and dibutyl tin dilaurate is 1: (8-10): (0.5-0.6): (0.01-0.03).

[0027] Further, in step B, the mass of thiol-containing organosilicon is 2-4 times the mass of isophorone diisocyanate.

[0028] Further, in step C, the photoinitiator is 2,2-dimethoxy-2-phenyl phenyl ethyl ketone, and the amount is 1-3 wt% of the thiol-containing chitosan aqueous solution; the amount of organosilicon quaternary ammonium salt is 1-5% of the thiol-containing chitosan aqueous solution; the concentration of the thiol-containing chitosan aqueous solution is 3-5 wt%.

[0029] Further, in step S3, the bath ratio of modified polyester cotton cloth and thiol-containing finishing liquid is 1: (15-20), and the process conditions of ultraviolet light irradiation are: using ultraviolet lamp, ultraviolet cold light source 450-500 W, lamp distance 10-15 cm.

[0030] Compared with the prior art, the beneficial effects of the present application are:

[0031] 1. The moisture-absorbing and quick-drying polyester cotton fabric and its processing technology of the present application, using itaconic acid, butanediol and polytetrahydrofuran ether dihydric alcohol as raw materials, introducing polyether polyol in the synthesis process of polyester polyol, using the active end hydroxyl group to directly carry out alcohol acid condensation reaction with the end carboxyl group of itaconic acid, preparing polyester ether polyol containing double bond containing both ester bond segment and ether bond segment, in the finishing process, polyester segment and polyester fiber molecule occur co-crystallization and are combined together, so that the finishing agent is not easy to fall off on the fabric, that is, it has washing resistance; the polyether segment extends to the air phase or the water phase, thereby improving the hydrophilicity and antistatic property of the fabric; then isophorone diisocyanate is grafted to the polyester ether polyol containing double bond, and methyl ethyl ketone oxime is used for end capping treatment of the isocyanate, thereby synthesizing hydrophilic heat-decapable isocyanate end-capped polyester ether polyol, the isocyanate groups at both ends and on the side chain can be decapped active at a certain temperature, and the active groups react with the active groups on the hydroxylated polyester cotton fabric, thereby forming cross-linking in the fiber, so that the fiber is not easy to relatively slip, thereby improving the wrinkle recovery of the finished fabric.

[0032] 2. The moisture-absorbing and quick-drying polyester cotton fabric and its processing technology of the present application, through the hydrolysis condensation reaction of hydroxyl silicone oil (SO) and 3-mercaptopropyl methyl dimethoxysilane (MPDMS), a hydroxyl group-containing mercapto organosilicon is successfully prepared; then, through the reaction of one isocyanate group in isophorone diisocyanate and the hydroxyl group in choline chloride, and through the reaction of the remaining isocyanate group in isophorone diisocyanate and the hydroxyl group in the mercapto-containing organosilicon, an organosilicon quaternary ammonium salt with antibacterial effect is obtained, while the mercapto function is retained; chitosan is a natural antibacterial agent, the organosilicon quaternary ammonium salt and the photoinitiator are ultrasonically dispersed in the mercapto chitosan aqueous solution to obtain a mercapto finishing liquid, which can occur mercapto-alkene click reaction with the double bond-containing finishing liquid under ultraviolet light irradiation, thereby further improving the moisture-absorbing and quick-drying performance and antibacterial effect of the polyester cotton fabric. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] The polyester cotton fabric in the present embodiment: 80% polyester and 20% cotton, with a weight of 180g / m2, from Shaoxing Keqiao Qianquan Textile Co., Ltd.; hydrolysis-resistant titanium catalyst: AUCAT-ES02, from Guangzhou Youyun Synthetic Material Co., Ltd.; mercapto chitosan: product number Q-0148739, from Xi'an Qiyue Biological Technology Co., Ltd.; polytetrahydrofuran ether dihydric alcohol: PTMG650, from Shanghai BASF Chemical Co., Ltd.

[0035] Embodiment 1: A processing technology of moisture absorption and quick-drying polyester cotton fabric, comprising the following steps:

[0036] Step S1: mixing polyester cotton fabric and 3 mol / L sodium hydroxide solution uniformly according to a bath ratio of 1:40, stirring at 70°C for 30 min, and obtaining hydroxylated polyester cotton fabric after washing and drying;

[0037] Step S2: immersing and padding the hydroxylated polyester cotton fabric in a double-bond-containing finishing liquid (one immersion and padding, the amount of the double-bond-containing finishing liquid is 10 g / L, and the padding rate is 75%), pre-drying at 70°C for 10 min, and baking at 130°C for 3 min, to obtain modified polyester cotton fabric;

[0038] Step S3: immersing the modified polyester cotton fabric in a thiol-containing finishing liquid according to a bath ratio of 1:15, and reacting under ultraviolet light irradiation for 30 min (using an ultraviolet lamp, ultraviolet cold light source 450W, lamp distance 10 cm), and obtaining moisture absorption and quick-drying polyester cotton fabric after washing and drying;

[0039] The preparation method of the double-bond-containing finishing liquid is as follows:

[0040] Step (1): mixing 100 g itaconic acid, 40 g butanediol, 60 g polytetrahydrofuran ether diol and 0.01 g hydrolysis-resistant titanium catalyst uniformly under nitrogen protection, reacting at 130°C for 2 h, continuously heating to 170°C, and reacting for 5 h, adding 0.06 g titanium tetrabutoxide, continuously heating to 220°C, vacuumizing, and reacting for 8 h, and cooling to room temperature to obtain a double-bond-containing polyester ether polyol;

[0041] Step (2): mixing 100 g isophorone diisocyanate and 400 g acetone uniformly under nitrogen protection, heating to 40°C, adding a mixed solution of 150 g double-bond-containing polyester ether polyol and 400 g acetone dropwise, and completing the dropwise addition in 1 h, adding 1 g dibutyltin dilaurate, continuously heating to 55°C, reacting for 1 h, and adding 100 g methyl ethyl ketoxime for end-capping reaction for 70 min to obtain isocyanate-terminated polyester ether polyol;

[0042] Step (3): mixing 100 g isocyanate-terminated polyester ether polyol and deionized water uniformly to obtain a double-bond-containing finishing liquid with a solid content of 10%;

[0043] The preparation method of the thiol-containing finishing liquid is as follows:

[0044] Step A: mixing 10 g 3-mercaptopropylmethyldimethoxysilane, 20 g deionized water and 70 g isopropyl alcohol uniformly under nitrogen protection, heating to 60°C, mixing 650 g hydroxyl silicone oil and 3 g tetramethylammonium hydroxide uniformly, and reacting for 4 h, and obtaining a thiol-containing organosilicon by vacuum distillation;

[0045] Step B: 5g isophorone diisocyanate and 40g acetonitrile were mixed uniformly under nitrogen protection, 2.5g choline chloride and 0.05g dibutyltin dilaurate were added, and the reaction was carried out at 40℃ for 1h, then 10g thiol-containing organosilicon was added dropwise, and the reaction was continued for 2h after 1h dropwise addition. After vacuum distillation, the organosilicon quaternary ammonium salt was obtained;

[0046] Step C: 10g organosilicon quaternary ammonium salt and 10g photoinitiator were ultrasonically dispersed in 1000g 3wt% thiol-containing chitosan aqueous solution to obtain a thiol-containing finishing liquor.

[0047] Example 2: A processing technology of moisture-absorbing and quick-drying polyester cotton fabric, comprising the following processes:

[0048] Step S1: The polyester cotton fabric and 4mol / L sodium hydroxide solution were mixed uniformly at a bath ratio of 1:45, stirred at 75℃ for 40min, washed and dried to obtain a hydroxylated polyester cotton fabric;

[0049] Step S2: The hydroxylated polyester cotton fabric was placed in a double bond-containing finishing liquor for padding treatment (one dip and one pad, the amount of double bond-containing finishing liquor was 15g / L, and the pick-up rate was 80%), pre-dried at 75℃ for 12min, and baked at 135℃ for 4min to obtain a modified polyester cotton fabric;

[0050] Step S3: The modified polyester cotton fabric was immersed in a thiol-containing finishing liquor at a bath ratio of 1:18, and reacted under ultraviolet light irradiation for 40min (ultraviolet lamp, ultraviolet cold light source 480W, lamp distance 13cm), and then washed and dried to obtain a moisture-absorbing and quick-drying polyester cotton fabric;

[0051] The preparation method of the double bond-containing finishing liquor is as follows:

[0052] Step (1): 100g itaconic acid, 45g butanediol, 65g polytetrahydrofuran ether diol and 0.02g hydrolysis-resistant titanium catalyst were mixed uniformly under nitrogen protection, and the reaction was carried out at 135℃ for 3h, then the temperature was increased to 175℃, and the reaction was continued for 6h, then 0.08g tetra-n-butyl titanate was added, the temperature was increased to 225℃, vacuum was applied, and the reaction was continued for 9h, and then the temperature was cooled to room temperature to obtain a double bond-containing polyester ether polyol;

[0053] Step (2): 100g isophorone diisocyanate and 500g acetone were mixed uniformly under nitrogen protection, the temperature was increased to 45℃, a mixed solution of 200g double bond-containing polyester ether polyol and 500g acetone was added dropwise, the dropwise addition was completed in 1.5h, 2g dibutyltin dilaurate was added, the temperature was increased to 60℃, and the reaction was continued for 1.5h, then 120g methyl ethyl ketoxime was added for capping reaction for 80min to obtain an isocyanate-capped polyester ether polyol;

[0054] Step (3): 100 g of isocyanate-terminated polyester ether polyol and deionized water were mixed uniformly to obtain a double-bond-containing finishing liquid with a solid content of 15%;

[0055] The preparation method of the thiol-containing finishing liquid is as follows:

[0056] Step A: 10 g of 3-mercaptopropylmethyldimethoxysilane, 25 g of deionized water, and 75 g of isopropyl alcohol were mixed uniformly under nitrogen protection, heated to 65°C, 655 g of hydroxyl silicone oil and 4 g of tetramethylammonium hydroxide were mixed uniformly, and reacted for 5 h, and then distilled under reduced pressure to obtain a thiol-containing organosilicon;

[0057] Step B: 10 g of isophorone diisocyanate and 90 g of acetonitrile were mixed uniformly under nitrogen protection, 5.5 g of choline chloride and 0.2 g of dibutyltin dilaurate were added, and reacted at 45°C for 1.5 h, then 30 g of thiol-containing organosilicon was added dropwise, and the dropwise addition was completed in 1.5 h, and the reaction was continued for 3 h, and then distilled under reduced pressure to obtain a silicone quaternary ammonium salt;

[0058] Step C: 30 g of the silicone quaternary ammonium salt and 20 g of a photoinitiator were ultrasonically dispersed in 1000 g of a 4wt% thiol-containing chitosan aqueous solution to obtain a thiol-containing finishing liquid.

[0059] Example 3: A processing technology of a moisture-absorbing and quick-drying polyester cotton fabric, comprising the following processes:

[0060] Step S1: The polyester cotton fabric and 5 mol / L sodium hydroxide solution were mixed uniformly at a bath ratio of 1:50, stirred at 80°C for 50 min, washed and dried to obtain a hydroxylated polyester cotton fabric;

[0061] Step S2: The hydroxylated polyester cotton fabric was immersed and padded in the double-bond-containing finishing liquid (one immersion and one padding, the amount of the double-bond-containing finishing liquid was 20 g / L, and the padding rate was 85%), pre-dried at 80°C for 15 min, and baked at 140°C for 5 min to obtain a modified polyester cotton fabric;

[0062] Step S3: The modified polyester cotton fabric was immersed in the thiol-containing finishing liquid at a bath ratio of 1:20, and reacted under ultraviolet light irradiation for 50 min (an ultraviolet lamp was used, an ultraviolet cold light source was 500 W, and the lamp distance was 15 cm), and then washed and dried to obtain a moisture-absorbing and quick-drying polyester cotton fabric;

[0063] The preparation method of the double-bond-containing finishing liquid is as follows:

[0064] Step (1): 150 g of itaconic acid, 75 g of butanediol, 105 g of polytetrahydrofuran ether glycol, and 0.066 g of hydrolysis-resistant titanium catalyst were mixed uniformly under nitrogen protection, and reacted at 140°C for 4 h, and then the temperature was increased to 180°C, and reacted for 7 h, and then 0.165 g of titanium tetrabutoxide was added, and the temperature was increased to 230°C, and vacuum was applied, and reacted for 10 h, and then cooled to room temperature to obtain a double-bond-containing polyester ether polyol;

[0065] Step (2): 100 g of isophorone diisocyanate and 600 g of acetone were mixed uniformly under nitrogen protection, and the temperature was increased to 50°C, and then a mixed solution of 300 g of the double-bond-containing polyester ether polyol and 600 g of acetone was added dropwise, and the dropping was completed in 2 h, and then 3 g of dibutyltin dilaurate was added, and the temperature was increased to 65°C, and reacted for 2 h, and then 150 g of methyl ethyl ketoxime was added to perform end-capping reaction for 90 min to obtain an isocyanate-terminated polyester ether polyol;

[0066] Step (3): 100 g of the isocyanate-terminated polyester ether polyol and deionized water were mixed uniformly to obtain a double-bond-containing finishing liquid with a solid content of 20%;

[0067] The preparation method of the thiol-containing finishing liquid is as follows:

[0068] Step A: 10 g of 3-mercaptopropylmethyldimethoxysilane, 30 g of deionized water, and 80 g of isopropyl alcohol were mixed uniformly under nitrogen protection, and the temperature was increased to 70°C, and then 660 g of hydroxyl silicone oil and 5 g of tetramethylammonium hydroxide were mixed uniformly, and reacted for 6 h, and then distilled under reduced pressure to obtain a thiol-containing organosilicon;

[0069] Step B: 12.5 g of isophorone diisocyanate and 125 g of acetonitrile were mixed uniformly under nitrogen protection, and then 7.5 g of choline chloride and 0.375 g of dibutyltin dilaurate were added, and reacted at 50°C for 2 h, and then 50 g of the thiol-containing organosilicon was added dropwise, and the dropping was completed in 2 h, and then reacted for 4 h, and then distilled under reduced pressure to obtain a quaternary ammonium organosilicon salt;

[0070] Step C: 50 g of the quaternary ammonium organosilicon salt and 30 g of a photoinitiator were ultrasonically dispersed in 1000 g of a 5wt% thiol-containing chitosan aqueous solution to obtain a thiol-containing finishing liquid.

[0071] Comparative Example 1: A processing technology of a moisture-absorbing and quick-drying polyester cotton fabric, comprising the following processes:

[0072] Step S1: The polyester cotton fabric and a 4 mol / L sodium hydroxide solution were mixed uniformly at a bath ratio of 1:45, and stirred at 75°C for 40 min, and then washed and dried to obtain a hydroxylated polyester cotton fabric;

[0073] Step S2: The hydroxylated polyester cotton fabric is immersed in the mercapto-containing finishing liquid at a bath ratio of 1:18, pre-dried at 80℃ for 15min, and baked at 140℃ for 5min to obtain a moisture-wicking polyester cotton fabric;

[0074] Compared with Example 2, Comparative Example 1 is not treated with a double-bond-containing finishing liquid, and the other steps are the same as those of Example 2.

[0075] Comparative Example 2: A processing process of a moisture-wicking polyester cotton fabric, comprising the following processes:

[0076] The preparation method of the double-bond-containing finishing liquid is as follows:

[0077] Step (1): Under nitrogen protection, 150g itaconic acid, 75g butanediol, 105g polytetrahydrofuran ether diol and 0.066g hydrolysis-resistant titanium catalyst are uniformly mixed, reacted at 140℃ for 4h, continuously heated to 180℃, reacted for 7h, 0.165g titanium tetrabutoxide is added, continuously heated to 230℃, vacuumized, reacted for 10h, and cooled to room temperature to obtain a double-bond-containing polyester ether polyol;

[0078] Step (2): 100g of the double-bond-containing polyester ether polyol and deionized water are uniformly mixed to obtain a double-bond-containing finishing liquid with a solid content of 20%;

[0079] Compared with Example 2, in the double-bond-containing finishing liquid of Comparative Example 2, isophorone diisocyanate is not introduced, the isocyanate-terminated polyester ether polyol is replaced by a double-bond-containing polyester ether polyol, and the other steps are the same as those of Example 2.

[0080] Comparative Example 3: A processing process of a moisture-wicking polyester cotton fabric, comprising the following processes:

[0081] The preparation method of the mercapto-containing finishing liquid is as follows:

[0082] 30g of a photoinitiator is ultrasonically dispersed in 1000g of a 5wt% mercapto-containing chitosan aqueous solution to obtain a mercapto-containing finishing liquid.

[0083] Compared with Example 2, the mercapto-containing finishing liquid of Comparative Example 3 does not include a silicone quaternary ammonium salt, and the other steps are the same as those of Example 2.

[0084] Experiment: The moisture-wicking polyester cotton fabrics obtained in Examples 1-3 and Comparative Examples 1-3 are taken to prepare samples, and the performance of each sample is detected and the detection results are recorded:

[0085] The moisture-wicking performance test is based on GB / T 21655.1-2023 "Evaluation of Moisture-wicking Performance of Textiles Part 1: Single Combination Test Method", and the moisture-wicking performance indicators of the fabric before and after washing and drying for 30 times are tested, and the washing method is based on GB / T 8629-2017.

[0086] Antibacterial experiments were carried out according to the AATCC 100-2019 method, the sample size was 15 mm x 15 mm, the activated bacterial solution was diluted to about 1 x 10 8 CFU / mL, 20.0 μL of the diluted bacterial solution aliquot was added to the center of the sample in the glass slide, and after standing in the clean bench for 6 hours, the sample was transferred to a test tube containing 5.00 mL of normal saline and shaken for 10 minutes. The supernatant was diluted to an appropriate concentration, dispersed onto solid culture medium, and incubated at 37°C for 24 hours. The number of bacteria in the solid culture medium was observed, the antibacterial rate of the fabric was calculated, and the results were recorded. The tested bacteria were Staphylococcus aureus.

[0087] Test results:

[0088]

[0089] According to the data in the above table, the following conclusions can be clearly obtained:

[0090] 1. Compared with Examples 1-3, the moisture absorption and quick drying performance of the product obtained in Comparative Example 1 decreased, which indicated that the moisture absorption and quick drying capacity of the polyester cotton fabric could be effectively improved by treating with the double bond-containing finishing liquid according to the present application.

[0091] 2. Compared with Examples 1-3, the moisture absorption and quick drying performance of the product obtained in Comparative Example 2 decreased, which indicated that the wash resistance of the polyester cotton fabric could be further improved by introducing isophorone diisocyanate and carrying out end-capping treatment in the double bond-containing finishing liquid according to the present application.

[0092] 3. Compared with Examples 1-3, the moisture absorption and quick drying performance and antibacterial rate of the product obtained in Comparative Example 3 decreased, which indicated that the moisture absorption and quick drying performance and antibacterial effect of the material could be improved by adding the organosilicon quaternary ammonium salt according to the present application.

[0093] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A processing technology for a moisture-wicking and quick-drying polyester-cotton fabric, characterized in that: Includes the following steps: Step S1: Mix the polyester-cotton fabric and sodium hydroxide solution evenly, stir at 70-80℃ for 30-50 minutes, and after washing and drying, obtain hydroxylated polyester-cotton fabric; Step S2: The hydroxylated polyester-cotton fabric is immersed in a finishing solution containing double bonds for padding treatment, pre-dried at 70-80℃ for 10-15 min, and baked at 130-140℃ for 3-5 min to obtain the modified polyester-cotton fabric. Step S3: The modified polyester-cotton fabric is immersed in a mercapto-containing finishing solution and reacted under ultraviolet light for 30-50 minutes. After washing and drying, a moisture-wicking and quick-drying polyester-cotton fabric is obtained. In step S2, the preparation method of the double bond finishing solution is as follows: Step (1): Under nitrogen protection, itaconic acid, butanediol, polytetrahydrofuran ether diol and hydrolysis-resistant titanium catalyst are mixed evenly and reacted at 130-140℃ for 2-4 hours. The temperature is then increased to 170-180℃ and reacted for 5-7 hours. Tetrabutyl titanate is added and the temperature is increased to 220-230℃. Vacuum is applied and the reaction is carried out for 8-10 hours. The mixture is then cooled to room temperature to obtain a double-bonded polyester ether polyol. Step (2): Under nitrogen protection, isophorone diisocyanate and acetone are mixed evenly, heated to 40-50℃, and a mixed solution containing double bond polyester ether polyol and acetone is added dropwise. The addition is completed in 1-2 hours. Dibutyltin dilaurate is added, and the temperature is further raised to 55-65℃. The reaction is carried out for 1-2 hours. Methyl ethyl ketone oxime is added for end-capping reaction for 70-90 minutes to obtain isocyanate-terminated polyester ether polyol. Step (3): Mix isocyanate-terminated polyester ether polyol and deionized water evenly to obtain a finishing solution containing double bonds; In step S3, the preparation method of the mercapto-containing finishing solution is as follows: Step A: Under nitrogen protection, 3-mercaptopropylmethyldimethoxysilane, deionized water and isopropanol are mixed evenly, heated to 60-70℃, hydroxyl silicone oil and tetramethylammonium hydroxide are added and mixed evenly, reacted for 4-6 hours, and then distilled under reduced pressure to obtain mercapto-containing organosilicon. Step B: Under nitrogen protection, isophorone diisocyanate and acetonitrile are mixed evenly, choline chloride and dibutyltin dilaurate are added, and the reaction is carried out at 40-50℃ for 1-2 hours. Then, mercapto-containing organosilicon is added dropwise over 1-2 hours. The reaction is continued for 2-4 hours. The organosilicon quaternary ammonium salt is obtained by vacuum distillation. Step C: Disperse the organosilicon quaternary ammonium salt and photoinitiator in an aqueous solution of thiol-containing chitosan using ultrasonication to obtain a thiol-containing finishing solution.

2. The processing technology of a moisture-wicking and quick-drying polyester-cotton fabric according to claim 1, characterized in that: In step S1, the bath ratio of polyester-cotton fabric to sodium hydroxide solution is 1:(40-50), and the concentration of sodium hydroxide solution is 3-5 mol / L.

3. The processing technology of a moisture-wicking and quick-drying polyester-cotton fabric according to claim 1, characterized in that: In step (1), the mass ratio of itaconic acid, butanediol, and polytetrahydrofuran ether diol is 1:(0.4-0.5):(0.6-0.7).

4. The processing technology of a moisture-wicking and quick-drying polyester-cotton fabric according to claim 1, characterized in that: In step (2), the mass ratio of isophorone diisocyanate, acetone, polyol containing double bond polyester ether, dibutyltin dilaurate, and methyl ethyl ketone oxime is 1:(6-8):(1.5-3.0):(0.01-0.03):(1.0-1.5).

5. The processing technology of a moisture-wicking and quick-drying polyester-cotton fabric according to claim 1, characterized in that: In step A, the mass ratio of 3-mercaptopropylmethyldimethoxysilane, deionized water, isopropanol, hydroxyl silicone oil, and tetramethylammonium hydroxide is 1:(2-3):(7-8):(65-66):(0.3-0.5).

6. The processing technology of a moisture-wicking and quick-drying polyester-cotton fabric according to claim 1, characterized in that: In step B, the mass of the mercapto-containing organosilicon is 2-4 times the mass of isophorone diisocyanate.

7. The processing technology of a moisture-wicking and quick-drying polyester-cotton fabric according to claim 1, characterized in that: In step S3, the bath ratio of the modified polyester-cotton fabric to the mercapto-containing finishing solution is 1:(15-20).

8. A moisture-wicking and quick-drying polyester-cotton fabric prepared by the processing technology according to any one of claims 1-7.

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