Preparation process of antibacterial and wrinkle-resistant fabric

Abstract

The invention relates to a preparation process of an antibacterial and wrinkle-proof fabric, belonging to the technical field of fabrics, and comprising the following steps: interweaving polyester honeycomb fiber / viscose fiber blended yarn and cotton fiber / ramie fiber blended yarn into fabric, and then treating the fabric with an alkali solution to obtain a pretreated fabric; combining the pretreated fabric in step S1 with an antibacterial agent to obtain the antibacterial fabric; immersing the antibacterial fabric in step S2 into an antibacterial modifier, performing double immersion and double rolling, and finally obtaining the antibacterial and wrinkle-proof fabric after baking; in the technical scheme of the invention, plant essential oil is included through the cavity of alpha-cyclodextrin to obtain a cyclodextrin inclusion compound; the cyclodextrin inclusion compound is oxidized to obtain an antibacterial modifier; the binding force between the antibacterial fabric and the antibacterial modifier is enhanced as a whole, the antibacterial performance and antibacterial performance of the fabric are further improved, and the plant essential oil and the antibacterial agent play a synergistic antibacterial role on the fabric, the antibacterial durability of the fabric is improved, and the service life of the fabric is extended.

Description

Technical Field

[0001] The invention belongs to the technical field of fabrics, and in particular relates to a preparation process of antibacterial and wrinkle-resistant fabrics. Background Art

[0002] As people's living standards improve and their material lives become more and more abundant, they have put forward more and higher requirements for the safety, health, comfort and environmental protection of textiles. Among the numerous textiles, knitted fabrics are widely used in clothing fabrics and linings, home textiles and other products, and are loved by consumers. In particular, cotton and linen fabrics are widely used in the preparation of underwear because of their characteristics of moisture absorption and heat absorption, good air permeability, softness and comfort. However, the current knitted fabrics are not only prone to dirt and bacteria after long-term use, which brings certain hidden dangers to human health, but also prone to wrinkles, resulting in a short service life, which brings inconvenience to people's daily use.

[0003] In the prior art, polyacids are usually used to cross-link and recombine with hydroxyl groups on the surface of fabrics to achieve anti-wrinkle performance. However, directly reacting the carboxyl groups of the polyacids with the hydroxyl groups on the surface of the fabrics results in a weak cross-linking effect, which in turn causes the fabric to have a weak anti-wrinkle performance. Cotton and linen fibers are dense and highly absorbent, easily breed bacteria, and have poor antibacterial properties. They are usually finished by adding antibacterial agents. Due to the poor binding force between the antibacterial agent and the fabric, the antibacterial performance of the fabric is low and it is not resistant to washing. At the same time, the free antibacterial agent is potentially toxic to the human body. Therefore, preparing an antibacterial and anti-wrinkle fabric has broad market value and application prospects. Summary of the invention

[0004] The object of the present invention is to provide a preparation process of antibacterial and wrinkle-resistant fabrics, comprising the steps of interweaving polyester honeycomb fiber / viscose fiber blended yarn and cotton fiber / ramie fiber blended yarn into fabrics, and then treating the fabrics with an alkali solution to obtain pretreated fabrics, wherein the fabrics have hydroxyl groups on their surfaces after being treated with the alkali solution, thereby providing reaction sites for subsequent reactions; combining the pretreated fabrics in step S1 with an antibacterial agent to obtain antibacterial fabrics, thereby enhancing the binding force between the antibacterial agent and the pretreated fabrics, improving the antibacterial properties of the fabrics, and providing hydroxyl groups for subsequent grafting ...2 with an antibacterial agent to obtain antibacterial fabrics, thereby enhancing the antibacterial properties of the fabrics, and providing hydroxyl groups for subsequent grafting reactions; combining the pretreated fabrics in step S3 with an antibacterial agent to obtain antibacterial fabrics, thereby enhancing the antibacterial properties of the fabrics, and providing hydroxyl groups for subsequent grafting reactions; combining the pretreated fabrics in step S4 with an antibacterial agent to obtain antibacterial fabrics, thereby enhancing the antibacterial properties of the fabrics, and providing hydroxyl groups for subsequent grafting reactions. In step S2, the antibacterial fabric is immersed in the anti-wrinkle modifier, immersed twice and rolled twice, and baked to finally obtain the antibacterial anti-wrinkle fabric, which enhances the binding force between the anti-wrinkle modifier and the fabric and improves the anti-wrinkle performance of the anti-wrinkle modifier on the fabric; the plant essential oil is encapsulated by the cavity of α-cyclodextrin and then oxidized to obtain the anti-wrinkle modifier, which not only plays a synergistic antibacterial role with the antibacterial agent, but also improves the anti-wrinkle performance, mechanical properties and washability of the fabric, thereby generally improving the comprehensive performance of the fabric and extending the service life of the fabric.

[0005] Technical problem to be solved by the present invention: In the prior art, polyacids are usually used to cross-link and recombine with hydroxyl groups on the surface of fabrics to achieve anti-wrinkle performance, but directly reacting the carboxyl groups of the polyacids with the hydroxyl groups on the surface of the fabrics results in a weak cross-linking effect, which in turn causes the fabric to have a weak anti-wrinkle performance; cotton and linen fibers are dense and highly absorbent, easily breed bacteria, and have poor antibacterial properties, and are usually finished by adding antibacterial agents. Due to the poor binding force between the antibacterial agents and the fabrics, the antibacterial properties of the fabrics are low and they are not resistant to washing. At the same time, free antibacterial agents are potentially toxic to the human body. Therefore, preparing an antibacterial and anti-wrinkle fabric has broad market value and application prospects.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A preparation process of an antibacterial and wrinkle-resistant fabric comprises the following steps:

[0008] S1: interweaving polyester honeycomb fiber / viscose fiber blended yarn and cotton fiber / ramie fiber blended yarn into fabric, and then treating with an alkaline solution to obtain a pretreated fabric;

[0009] S2: combining the pretreated fabric in step S1 with an antibacterial agent to obtain an antibacterial fabric;

[0010] S3: immersing the antibacterial fabric in step S2 into the anti-wrinkle modifier, performing double immersion and double rolling, and finally obtaining the antibacterial anti-wrinkle fabric after baking;

[0011] The preparation method of the anti-wrinkle modifier comprises the following steps:

[0012] A1: Inclusion of plant essential oil through the cavity of α-cyclodextrin to obtain cyclodextrin inclusion complex;

[0013] A2: The cyclodextrin inclusion complex is subjected to oxidation treatment to obtain an anti-wrinkle modifier.

[0014] Further, step S1 is specifically:

[0015] The fabric is woven by machine, with polyester honeycomb fiber / viscose fiber blended yarn as warp and cotton fiber / ramie fiber blended yarn as weft, and then the fabric is placed in an alkaline solution, heated to 95-105°C and stored for 25-35 minutes, then washed with deionized water, and finally dried at 70-90°C for 20-30 minutes to obtain a pretreated fabric.

[0016] Furthermore, the polyester honeycomb fiber / viscose fiber blended yarn and the cotton fiber / ramie fiber blended yarn are interwoven into fabrics in a mass ratio of 20-30:50-65.

[0017] Furthermore, the polyester honeycomb fiber / viscose fiber blended yarn is blended by polyester honeycomb fiber and viscose fiber in a mass ratio of 5-10:15-20.

[0018] Furthermore, the cotton fiber / ramie fiber blended yarn is blended by cotton fiber and ramie fiber in a mass ratio of 25-30:25-35.

[0019] Furthermore, the polyester honeycomb fiber has a linear density of 1.67-3.3 dtex and a length of 38-51 mm.

[0020] Furthermore, the viscose fiber has a linear density of 1.1-3.3 dtex and a length of 38-51 mm.

[0021] Furthermore, the cotton fiber has a linear density of 1.25-1.54 dtex and a length of 33-45 mm.

[0022] Furthermore, the linear density of the ramie fiber is 0.4-0.91 tex, and the length is 55-65 mm.

[0023] Furthermore, the weaving is performed by weaving warp threads and weft threads into a fabric in an up-down plain weave.

[0024] Furthermore, the bath ratio of the fabric and the alkaline solution is 1 g: (25-35) mL.

[0025] Furthermore, the alkaline solution is a sodium hydroxide solution with a mass concentration of 0.5 mol / L.

[0026] Furthermore, step S2 is specifically as follows:

[0027] The antibacterial agent is dissolved in deionized water to obtain an antibacterial agent aqueous solution, the pretreated fabric is immersed in the antibacterial agent aqueous solution for 20-30 minutes, dried at 70-90° C. for 15-25 minutes, then cured at 185-195° C. for 3-7 minutes, rinsed with deionized water, and finally dried at 50-70° C. for 1.5-2.5 hours to obtain the antibacterial fabric.

[0028] In the above reaction process, the surface of the pretreated fabric has hydroxyl groups, and the antibacterial agent has epoxy groups. The epoxy groups in the antibacterial agent combine with the hydroxyl groups on the surface of the pretreated fabric through a ring-opening reaction, and the antibacterial agent is grafted onto the pretreated fabric to finally obtain the antibacterial fabric.

[0029] Furthermore, the antibacterial agent is an epoxidized quaternary ammonium salt or glycidyl trimethyl ammonium chloride.

[0030] Furthermore, the preparation method of the epoxidized quaternary ammonium salt comprises the following steps:

[0031] N, N-dimethyldodecylamine and methanol were mixed at a mass ratio of 9.3:5 to obtain system A, epichlorohydrin and methanol were mixed at a mass ratio of 4.8:5 to obtain system B, system B was added to system A at a mass ratio of 1:1.5, and then kept at 45°C for 2 hours, cooled to room temperature, and the methanol was evaporated under reduced pressure at 70°C / 10mmHg, washed five times with ether (the mass of ether each time was 5 times the mass of methanol), and vacuum dried at 40°C for 24 hours to obtain an epoxidized quaternary ammonium salt.

[0032] Furthermore, the antibacterial agent is dissolved in deionized water at a mass ratio of 4-6:90-110.

[0033] Furthermore, the bath ratio of the pretreated fabric and the antibacterial agent aqueous solution is 1 g: (45-55) mL.

[0034] Furthermore, step S3 is specifically as follows:

[0035] The antibacterial fabric in step S2 is immersed in the anti-wrinkle modifier, immersed twice and rolled twice, each immersion time is 25-35 minutes, each rolling rate is 60-80%, pre-baked at 120-140°C for 2-6 minutes, and then baked at 60-80°C for 6-8 hours, finally obtaining the antibacterial and anti-wrinkle fabric.

[0036] In the above reaction process, the antibacterial fabric has a hydroxyl group and the anti-wrinkle modifier has a carboxyl group. The hydroxyl group in the antibacterial fabric can be combined with the carboxyl group in the anti-wrinkle modifier through an esterification reaction, and the antibacterial fabric and the anti-wrinkle modifier are combined together to finally obtain the antibacterial and anti-wrinkle fabric.

[0037] Furthermore, the bath ratio of the antibacterial fabric and the anti-wrinkle modifier is 1 g: (15-25) mL.

[0038] Furthermore, the preparation method of the anti-wrinkle modifier comprises the following steps:

[0039] A1: dissolving α-cyclodextrin in deionized water to obtain an α-cyclodextrin solution, then adding plant essential oil to the α-cyclodextrin solution and mixing well, and then ultrasonically treating the mixture for 5-15 minutes to obtain a cyclodextrin inclusion complex;

[0040] A2: Add the cyclodextrin inclusion complex to a hydrogen peroxide solution and oxidize for 15-17 hours until the pH value of the system is 2.5-3.5, cool the mixture to room temperature, then add catalase to decompose the hydrogen peroxide, and finally obtain an anti-wrinkle modifier.

[0041] During the above reaction process, the cavity in α-cyclodextrin can include the plant essential oil, combining the plant essential oil with α-cyclodextrin to obtain a cyclodextrin inclusion complex; the surface of α-cyclodextrin in the cyclodextrin inclusion complex has hydroxyl groups, and after oxidation treatment with a hydrogen peroxide solution, the hydroxyl groups on the surface of α-cyclodextrin are oxidized into carboxyl groups, and finally an anti-wrinkle modifier is obtained.

[0042] Furthermore, the plant essential oil is one of lemon essential oil, rosemary essential oil and salvia miltiorrhiza essential oil.

[0043] Furthermore, the plant essential oil is stirred with 10 mL of Tween 80 emulsifier for 24 hours before being added to the α-cyclodextrin solution.

[0044] Beneficial effects of the present invention:

[0045] (1) In the technical scheme of the present invention, polyester honeycomb fiber / viscose fiber blended yarn and cotton fiber / ramie fiber blended yarn are interwoven into fabrics, and then treated with an alkaline solution to obtain a pretreated fabric; the polyester honeycomb fiber / viscose fiber blended yarn has a large number of honeycomb micropores on the surface and inside, has excellent moisture absorption and moisture conduction properties, excellent air permeability, good cooling, antibacterial and UV resistance, and plays a role in human health; the cotton fiber / ramie fiber blended yarn can effectively control the adhesion caused by sweating during exercise, has good wearing comfort, and has certain antibacterial and deodorizing properties; the fabric has hydroxyl groups on its surface after being treated with an alkaline solution, providing reaction sites for subsequent reactions; the pretreated fabric in step S1 is combined with an antibacterial agent to obtain an antibacterial fabric; the antibacterial agent has epoxy groups, which not only enhances the binding force between the antibacterial agent and the pretreated fabric, improves the antibacterial properties of the fabric, but also provides hydroxyl groups for the subsequent grafting reaction, so that the antibacterial fabric and the anti-wrinkle modifier are effectively combined.

[0046] (2) In the technical scheme of the present invention, the antibacterial fabric in step S2 is immersed in the anti-wrinkle modifier, immersed twice and rolled twice, and baked to finally obtain the antibacterial anti-wrinkle fabric; the antibacterial fabric and the anti-wrinkle modifier are combined together through an esterification reaction, thereby enhancing the binding force between the anti-wrinkle modifier and the fabric and improving the anti-wrinkle performance of the anti-wrinkle modifier on the fabric; the anti-wrinkle modifier is prepared by encapsulating plant essential oil through the cavity of α-cyclodextrin and then performing an oxidation treatment; by encapsulating the plant essential oil with α-cyclodextrin, the hydrophobic groups with smaller polarity in the plant essential oil enter the cavity of cyclodextrin, while the hydroxyl groups in the essential oil are It stays outside and the formed cyclodextrin inclusion complex has good stability. It can not only play a synergistic antibacterial role with the antibacterial agent, reduce the amount of antibacterial agent used while ensuring the antibacterial performance, but also improve the antibacterial durability of the fabric. The cyclodextrin inclusion complex is grafted onto the antibacterial fabric after oxidation treatment, which increases the dispersibility of the cyclodextrin inclusion complex and enhances its compatibility with the fabric. The cyclodextrin inclusion complex forms a cross-linked network inside the fabric, which limits molecular movement and improves the anti-wrinkle performance and anti-wrinkle durability of the fabric. At the same time, the anti-wrinkle modifier also enhances the mechanical properties and water wash resistance of the fabric.

[0047] (3) In the technical solution of the present invention, the antibacterial and anti-wrinkle fabric is prepared by treating the fabric with an alkaline solution, combining it with an antibacterial agent, and then immersing it in an anti-wrinkle modifier, performing two immersions and two rollings, and baking it. The binding force between the antibacterial agent and the anti-wrinkle modifier and the fabric is relatively strong, which further improves the antibacterial property, anti-wrinkle property, mechanical property and washability of the fabric. The prepared antibacterial and anti-wrinkle fabric has good comprehensive performance and extends the service life of the fabric. DETAILED DESCRIPTION

[0048] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the following embodiments and comparative examples, the woven fabric is formed by interweaving the warp and weft into a fabric in an up-down plain weave; the linear density of the polyester honeycomb fiber is 2.2 dtex and the length is 38 mm; the linear density of the viscose fiber is 2.2 dtex and the length is 38 mm; the linear density of the cotton fiber is 1.3 dtex and the length is 33 mm; the linear density of the ramie fiber is 0.7 tex and the length is 55 mm.

[0050] The preparation method of epoxidized quaternary ammonium salt comprises the following steps:

[0051] N, N-dimethyldodecylamine and methanol were mixed at a mass ratio of 9.3:5 to obtain system A, epichlorohydrin and methanol were mixed at a mass ratio of 4.8:5 to obtain system B, system B was added to system A at a mass ratio of 1:1.5, and then kept at 45°C for 2 hours, cooled to room temperature, and the methanol was evaporated under reduced pressure at 70°C / 10mmHg, washed five times with ether (the mass of ether each time was 5 times the mass of methanol), and vacuum dried at 40°C for 24 hours to obtain an epoxidized quaternary ammonium salt.

[0052] The preparation process of the antibacterial and wrinkle-resistant fabric comprises the following steps:

[0053] S1: Weaving is carried out to weave polyester honeycomb fiber / viscose fiber blended yarn as warp and cotton fiber / ramie fiber blended yarn as weft in a mass ratio of 20:50, and the fabric is placed in a sodium hydroxide solution with a mass concentration of 0.5 mol / L according to a bath ratio of 1 g:25 mL, heated to 95°C and stored for 25 min, then washed with deionized water (the mass of deionized water is twice the mass of the sodium hydroxide solution), and finally dried at 70°C for 20 min to obtain a pretreated fabric, wherein the polyester honeycomb fiber / viscose fiber blended yarn is blended by polyester honeycomb fiber and viscose fiber in a mass ratio of 5:15, and the cotton fiber / ramie fiber blended yarn is blended by cotton fiber and ramie fiber in a mass ratio of 25:25;

[0054] S2: Dissolve the quaternary ammonium epoxide salt in deionized water at a mass ratio of 4:90 to obtain an aqueous solution of the quaternary ammonium epoxide salt, soak the pretreated fabric in the aqueous solution of the quaternary ammonium epoxide salt at a bath ratio of 1 g:45 mL without shaking for 20 min, dry at 70°C for 15 min, then cure at 185°C for 3 min, rinse with deionized water (the mass of the deionized water is equal to the mass of the aqueous solution of the quaternary ammonium epoxide salt), and finally dry at 50°C for 1.5 h to obtain the antibacterial fabric;

[0055] S3: According to the bath ratio of 1g:15mL, the antibacterial fabric in step S2 is immersed in the anti-wrinkle modifier, and the immersion time is 25min each time, and the rolling rate is 60% each time. The antibacterial and anti-wrinkle fabric is pre-baked at 120℃ for 2min, and then baked at 60℃ for 6h to obtain the antibacterial and anti-wrinkle fabric.

[0056] The preparation method of the anti-wrinkle modifier comprises the following steps:

[0057] A1: α-cyclodextrin was dissolved in deionized water at 55°C for 25 min at a mass ratio of 0.5:15 to obtain an α-cyclodextrin solution. Lemon essential oil (previously stirred with 10 mL of Tween 80 emulsifier for 24 h) was added to the α-cyclodextrin solution at a mass ratio of 0.3:4 and mixed evenly. The mixture was then ultrasonically treated for 5 min (ultrasonic power of 500 W, ultrasonic frequency of 20 kHz, amplitude of 40%) to obtain a cyclodextrin inclusion complex.

[0058] A2: According to the mass ratio of 0.4:8, the cyclodextrin inclusion compound was added to a 30wt% hydrogen peroxide solution at 55°C and oxidized for 15 hours until the pH value of the system was 2.5. The mixture was cooled to room temperature, and catalase (the mass of catalase was 1wt% of the mass of the cyclodextrin inclusion compound) was added to decompose hydrogen peroxide at 90°C to finally obtain an anti-wrinkle modifier.

[0059] The preparation process of the antibacterial and wrinkle-resistant fabric comprises the following steps:

[0060] S1: Weaving is carried out according to a mass ratio of 25:60, with polyester honeycomb fiber / viscose fiber blended yarn as the warp and cotton fiber / ramie fiber blended yarn as the weft to form a fabric, and the fabric is placed in a sodium hydroxide solution with a mass concentration of 0.5 mol / L according to a bath ratio of 1 g:30 mL, heated to 100°C and stored for 30 minutes, then washed with deionized water (the mass of deionized water is twice the mass of the sodium hydroxide solution), and finally dried at 80°C for 25 minutes to obtain a pretreated fabric, wherein the polyester honeycomb fiber / viscose fiber blended yarn is blended by polyester honeycomb fiber and viscose fiber in a mass ratio of 8:17, and the cotton fiber / ramie fiber blended yarn is blended by cotton fiber and ramie fiber in a mass ratio of 28:32;

[0061] S2: Dissolve the quaternary ammonium epoxide salt in deionized water at a mass ratio of 5:100 to obtain an aqueous solution of the quaternary ammonium epoxide salt, soak the pretreated fabric in the aqueous solution of the quaternary ammonium epoxide salt at a bath ratio of 1g:50mL without shaking for 25min, dry at 80°C for 20min, then cure at 190°C for 5min, rinse with deionized water (the mass of the deionized water is equal to the mass of the aqueous solution of the quaternary ammonium epoxide salt), and finally dry at 60°C for 2h to obtain the antibacterial fabric;

[0062] S3: According to the bath ratio of 1g:20mL, the antibacterial fabric in step S2 is immersed in the anti-wrinkle modifier, and the antibacterial fabric is immersed twice and rolled twice, each immersion time is 30min, each rolling rate is 70%, and the antibacterial fabric is pre-baked at 130℃ for 4min, and then baked at 70℃ for 7h, and finally the antibacterial anti-wrinkle fabric is obtained;

[0063] The preparation method of the anti-wrinkle modifier comprises the following steps:

[0064] A1: α-cyclodextrin was dissolved in deionized water at 60°C for 30 min at a mass ratio of 1:20 to obtain an α-cyclodextrin solution, rosemary essential oil (previously stirred with 10 mL of Tween 80 emulsifier for 24 h) was added to the α-cyclodextrin solution at a mass ratio of 0.4:5 and mixed evenly, and then the mixture was ultrasonically treated for 10 min (ultrasonic power of 500 W, ultrasonic frequency of 20 kHz, amplitude of 40%) to obtain a cyclodextrin inclusion complex;

[0065] A2: According to the mass ratio of 0.5:10, the cyclodextrin inclusion compound was added to a 30wt% hydrogen peroxide solution at 60°C and oxidized for 16 hours until the pH value of the system was 3. The mixture was cooled to room temperature, and catalase (the mass of catalase was 1wt% of the mass of the cyclodextrin inclusion compound) was added to decompose hydrogen peroxide at 95°C to finally obtain an anti-wrinkle modifier.

[0066] The preparation process of the antibacterial and wrinkle-resistant fabric comprises the following steps:

[0067] S1: Weaving is carried out according to a mass ratio of 30:65, with polyester honeycomb fiber / viscose fiber blended yarn as the warp and cotton fiber / ramie fiber blended yarn as the weft to form a fabric, and the fabric is placed in a sodium hydroxide solution with a mass concentration of 0.5 mol / L according to a bath ratio of 1 g:35 mL, heated to 105°C and stored for 35 minutes, then washed with deionized water (the mass of deionized water is twice the mass of the sodium hydroxide solution), and finally dried at 90°C for 30 minutes to obtain a pretreated fabric, wherein the polyester honeycomb fiber / viscose fiber blended yarn is a blend of polyester honeycomb fiber and viscose fiber at a mass ratio of 10:20, and the cotton fiber / ramie fiber blended yarn is a blend of cotton fiber and ramie fiber at a mass ratio of 30:35;

[0068] S2: Dissolve glycidyl trimethyl ammonium chloride in deionized water at a mass ratio of 6:110 to obtain a glycidyl trimethyl ammonium chloride aqueous solution, soak the pretreated fabric in the glycidyl trimethyl ammonium chloride aqueous solution at a bath ratio of 1g:55mL without shaking for 30min, dry at 90°C for 25min, then cure at 195°C for 7min, rinse with deionized water (the mass of deionized water is equal to that of the glycidyl trimethyl ammonium chloride aqueous solution), and finally dry at 70°C for 2.5h to obtain the antibacterial fabric;

[0069] S3: According to the bath ratio of 1g:25mL, the antibacterial fabric in step S2 is immersed in the anti-wrinkle modifier, and the immersion time is 35min each time, and the rolling rate is 80% each time. The antibacterial and anti-wrinkle fabric is pre-baked at 140℃ for 6min, and then baked at 80℃ for 8h, and finally the antibacterial and anti-wrinkle fabric is obtained;

[0070] The preparation method of the anti-wrinkle modifier comprises the following steps:

[0071] A1: α-cyclodextrin was dissolved in deionized water at 65°C for 35 min at a mass ratio of 1.5:25 to obtain an α-cyclodextrin solution. Salvia miltiorrhiza essential oil (first stirred with 10 mL of Tween 80 emulsifier for 24 h) was added to the α-cyclodextrin solution at a mass ratio of 0.5:6 and mixed evenly. The mixture was then ultrasonically treated for 15 min (ultrasonic power of 500 W, ultrasonic frequency of 20 kHz, amplitude of 40%) to obtain a cyclodextrin inclusion complex.

[0072] A2: According to the mass ratio of 0.6:12, the cyclodextrin inclusion compound was added to a 30wt% hydrogen peroxide solution at 65°C and oxidized for 17 hours until the pH value of the system was 3.5. The mixture was cooled to room temperature, and catalase (the mass of catalase was 1wt% of the mass of the cyclodextrin inclusion compound) was added to decompose hydrogen peroxide at 100°C to finally obtain an anti-wrinkle modifier.

[0073] Comparative Example 1

[0074] The difference between this comparative example and Example 3 is that when preparing the anti-wrinkle modifier, the mass of the cyclodextrin inclusion compound in step A2 is replaced by α-cyclodextrin, and the remaining steps and raw materials are the same as those in Example 3.

[0075] Comparative Example 2

[0076] The difference between this comparative example and Example 3 is that, when preparing the anti-wrinkle modifier, the cyclodextrin inclusion compound in step A2 is not subjected to oxidation treatment with hydrogen peroxide solution, and the remaining steps and raw materials are the same as those in Example 3.

[0077] Comparative Example 3

[0078] The difference between this comparative example and Example 3 is that step S3 is specifically as follows:

[0079] According to the bath ratio of 1g:25mL, the antibacterial fabric in step S2 was immersed in the α-cyclodextrin solution, and the mixture was immersed and rolled twice, with each immersion time being 35min and each rolling rate being 80%. The mixture was pre-baked at 140°C for 6min and then baked at 80°C for 8h to obtain the antibacterial and wrinkle-resistant fabric. The remaining steps and raw materials were the same as those in Example 3.

[0080] Comparative Example 4

[0081] The difference between this comparative example and Example 3 is that the mass of glycidyl trimethylammonium chloride in step S2 is replaced by dodecyl dimethyl benzyl ammonium chloride, and the remaining steps and raw materials are the same as Example 3.

[0082] The antibacterial and wrinkle-resistant fabrics prepared in Examples 1-3 and Comparative Examples 1-4 were tested for antibacterial properties, anti-wrinkle properties, mechanical properties and washability. The antibacterial properties were measured according to GB / T 20944.3-2008, and the test bacteria were Gram-negative bacteria-Escherichia coli (AATCC 29522), Gram-positive bacteria-Staphylococcus aureus (AATCC 6538) and fungi-Candida albicans (ATCC 10231); the anti-wrinkle properties were measured according to GB / T 3819-1997 for the folding recovery angle; the mechanical properties were measured according to GB / T The breaking strength retention rate is determined according to the GB / T 3932.1-1997 standard; the wash resistance test is performed as follows: the antibacterial and wrinkle-resistant fabrics prepared in Examples 1-3 and Comparative Examples 1-4 are placed in a 5g / L standard detergent aqueous solution at a bath ratio of 1g:40mL at 40°C, washed in a household washing machine, washing for 10 minutes each time, and dried in an oven at 80°C, washed a total of 50 times, and the antibacterial performance of the antibacterial fabrics after washing 50 times is tested according to the GB / T 20944.3-2008 standard.

[0083] The test results are shown in Tables 1 and 2 below:

[0084] Table 1 Antibacterial properties, anti-wrinkle properties and mechanical properties parameters of the antibacterial and anti-wrinkle fabrics prepared in Examples 1-3 and Comparative Examples 1-4

[0085]

[0086] Table 2 Washing resistance performance parameters of the antibacterial and wrinkle-resistant fabrics prepared in Examples 1-3 and Comparative Examples 1-4

[0087]

[0088] It can be seen from the data in Table 1 and Table 2 above that, by comparing Comparative Examples 1-2 with Example 3, it can be seen that the anti-wrinkle modifier is prepared by oxidation treatment of α-cyclodextrin alone or the cyclodextrin inclusion compound is not subjected to oxidation treatment with hydrogen peroxide solution. The test results are worse than those of Example 3, indicating that the anti-wrinkle modifier prepared by inclusion of plant essential oil through the cavity of α-cyclodextrin and then oxidation treatment can not only have a synergistic antibacterial effect with the antibacterial agent, but also can provide carboxyl groups for subsequent combination with antibacterial fabrics, thereby increasing the grafting rate of the anti-wrinkle modifier on the antibacterial fabric, and further improving the antibacterial performance, water washability, mechanical properties and anti-wrinkle performance of the antibacterial and anti-wrinkle fabric;

[0089] From the comparison between Comparative Example 3 and Example 3, it can be seen that the test result of the antibacterial and wrinkle-resistant fabric prepared by directly combining the antibacterial fabric with α-cyclodextrin is worse than that of Example 3, which shows that combining the antibacterial fabric with the wrinkle-resistant modifier not only makes the combination effect between the wrinkle-resistant modifier and the antibacterial fabric better, but also increases the dispersibility of the wrinkle-resistant modifier on the fabric, further improving the antibacterial performance, wrinkle resistance and water washability of the antibacterial and wrinkle-resistant fabric;

[0090] By comparing Comparative Example 4 with Example 3, it can be seen that the test result of the antibacterial fabric prepared by combining the pretreated fabric with dodecyl dimethyl benzyl ammonium chloride is worse than that of Example 3, indicating that combining the pretreated fabric with glycidyl trimethyl ammonium chloride can not only increase the binding force between glycidyl trimethyl ammonium chloride and the pretreated fabric, but also provide hydroxyl groups for the subsequent grafting of the anti-wrinkle modifier, so that the antibacterial fabric and the anti-wrinkle modifier are effectively combined, further improving the antibacterial performance, water washability and anti-wrinkle performance of the antibacterial and anti-wrinkle fabric.

[0091] It can be seen from Table 1 and Table 2 above that the antibacterial and wrinkle-resistant fabrics prepared in Examples 1-3 are compared with Comparative Examples 1-4. The antibacterial and wrinkle-resistant fabrics are prepared by treating the fabrics with an alkaline solution, combining them with an antibacterial agent, and then immersing them in an anti-wrinkle modifier, performing two immersions and two rollings, and baking them to finally obtain the antibacterial and wrinkle-resistant fabrics. The antibacterial and wrinkle-resistant fabrics have overall improved antibacterial properties, water washing resistance, mechanical properties and wrinkle resistance, and meet the test performance requirements. The antibacterial and wrinkle-resistant fabrics prepared in Comparative Examples 1-4 did not meet the performance requirements. This shows that the antibacterial and wrinkle-resistant fabrics prepared by the present invention not only have good antibacterial and wrinkle-resistant properties, but also have good water washing resistance and mechanical properties, thereby improving the comprehensive performance of the fabric and extending the service life of the fabric.

[0092] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A preparation process of an antibacterial and wrinkle-resistant fabric, characterized in that: The following steps are involved: S1: interweaving polyester honeycomb fiber and viscose fiber blended yarn, cotton fiber and ramie fiber blended yarn into fabric, and then treating with an alkaline solution to obtain a pretreated fabric; S2: combining the pretreated fabric in step S1 with an antibacterial agent to obtain an antibacterial fabric; S3: immersing the antibacterial fabric in step S2 into the anti-wrinkle modifier, performing double immersion and double rolling, and finally obtaining the antibacterial anti-wrinkle fabric after baking; The antibacterial agent is an epoxidized quaternary ammonium salt or glycidyl trimethyl ammonium chloride; The preparation method of the anti-wrinkle modifier comprises the following steps: A1: dissolving α-cyclodextrin in deionized water to obtain an α-cyclodextrin solution, then adding the plant essential oil to the α-cyclodextrin solution and mixing well, and ultrasonically treating the mixture for 5-15 minutes to obtain a cyclodextrin inclusion complex; A2: Add the cyclodextrin inclusion complex to a hydrogen peroxide solution and oxidize for 15-17 hours until the pH value of the system is 2.5-3.5, cool the mixture to room temperature, then add catalase to decompose the hydrogen peroxide, and finally obtain an anti-wrinkle modifier.

2. The preparation process of the antibacterial and wrinkle-resistant fabric according to claim 1, characterized in that: Step S1 is specifically: The fabric is woven by machine, with polyester honeycomb fiber and viscose fiber blended yarn as warp and cotton fiber and ramie fiber blended yarn as weft, and then the fabric is placed in an alkaline solution, heated to 95-105°C and stored for 25-35 minutes, then washed with deionized water, and finally dried at 70-90°C for 20-30 minutes to obtain a pretreated fabric.

3. The preparation process of the antibacterial and wrinkle-resistant fabric according to claim 2, characterized in that: The polyester honeycomb fiber and viscose fiber blended yarn, and the cotton fiber and ramie fiber blended yarn are interwoven into fabrics according to a mass ratio of 20-30:50-65.

4. The preparation process of the antibacterial and wrinkle-resistant fabric according to claim 2, characterized in that: The bath ratio of the fabric and the alkaline solution is 1g: (25-35)mL.

5. The process for preparing an antibacterial and wrinkle-resistant fabric according to claim 1, characterized in that: Step S2 is specifically as follows: The antibacterial agent is dissolved in deionized water to obtain an antibacterial agent aqueous solution, the pretreated fabric is immersed in the antibacterial agent aqueous solution for 20-30 minutes, dried at 70-90° C. for 15-25 minutes, then cured at 185-195° C. for 3-7 minutes, rinsed with deionized water, and finally dried at 50-70° C. for 1.5-2.5 hours to obtain the antibacterial fabric.

6. The process for preparing an antibacterial and wrinkle-resistant fabric according to claim 1, characterized in that: Step S3 is specifically as follows: The antibacterial fabric in step S2 is immersed in the anti-wrinkle modifier, immersed twice and rolled twice, each immersion time is 25-35 minutes, each rolling rate is 60-80%, pre-baked at 120-140°C for 2-6 minutes, and then baked at 60-80°C for 6-8 hours, finally obtaining the antibacterial and anti-wrinkle fabric.

7. The process for preparing an antibacterial and wrinkle-resistant fabric according to claim 6, characterized in that: The bath ratio of the antibacterial fabric and the anti-wrinkle modifier is 1g:(15-25)mL.

8. An antibacterial and wrinkle-resistant fabric obtained by the preparation process according to any one of claims 1 to 7.

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