Antibacterial and anti-mosquito polyester fabric and preparation method thereof

Abstract

The present invention relates to the technical field of multi-layer composite fabrics, specifically to an antibacterial and anti-mosquito polyester fabric and a preparation method thereof. The preparation method comprises the following steps: reacting polyester fabric with methacrylic anhydride under alkaline conditions to obtain an olefin-modified polyester fabric; the olefin-modified polyester fabric and 3-phenyl acrolein, 4-allyl-2-methoxyphenol, and olefin-modified nano zinc oxide undergo vinyl free radical polymerization under ultraviolet light irradiation conditions and under the action of a photoinitiator to obtain a modified polyester fabric; using the modified polyester fabric as an outer layer fabric, and compounding it with an inner layer fabric in equal areas to obtain an antibacterial and anti-mosquito polyester fabric. The antibacterial and anti-mosquito polyester fabric has good antibacterial, anti-mosquito, outer layer water repellent, inner layer rapid moisture conduction, efficient vapor permeability and deodorization performance, and the antibacterial and anti-mosquito effect is released and retained for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of multi-layer composite fabrics, and in particular to an antibacterial and mosquito-proof polyester fabric and a preparation method thereof. Background Art

[0002] Polyester fabrics are widely used in clothing manufacturing and other fields due to their high strength, good elasticity, and good shape retention. However, if polyester fabrics are used to make summer clothing, due to the hot weather and high sweating, bacteria are easily bred, threatening human health. In addition, there are more mosquitoes in summer, which also puts forward requirements for the anti-mosquito and sweat-wicking properties of clothing fabrics. Therefore, it is necessary to modify the fabrics to be antibacterial and anti-mosquito.

[0003] Chinese patent application CN113174675A discloses a method for preparing polyester fabric, wherein the antibacterial mosquito repellent liquid is squeezed and adhered to the surface of the polyester long line, but the adhesion between the mosquito repellent liquid and the polyester is small, and it is easier to fall off from the surface of the polyester long line when washed; Chinese patent application CN113832727A discloses a method for preparing high-strength polyester fabric, wherein the polyester fabric is immersed in a coating liquid to obtain a coated fabric, the coated fabric is immersed in a drug solution, and then the immersed coated fabric is irradiated under an ultraviolet light device to obtain a high-strength polyester fabric; wherein the drug solution is one or more of wormwood, patchouli, mint, angelica, calamus or clove, and the drug solution plays an antibacterial and mosquito-proof role. However, the plant-derived antibacterial and mosquito-proof component is not easy to adhere to the polyester fabric, and due to its volatility, the antibacterial and mosquito-proof effect is short. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an antibacterial and anti-mosquito polyester fabric and a preparation method thereof, so as to solve the problem that the antibacterial and anti-mosquito effect of the polyester fabric in the prior art is poor.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0007] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun through a weaving process;

[0008] Adding polyester fabric to methacrylic anhydride, adding triethylamine to adjust the pH value to 7.5-8.5, reacting, and after the reaction is completed, draining, washing, and drying to obtain olefin-modified polyester fabric;

[0009] Step 2: Add 3-phenylacrolein (cinnamaldehyde) into ethanol and dissolve it to obtain a 3-phenylacrolein solution; add 4-allyl-2-methoxyphenol (eugenol) into ethanol and dissolve it to obtain a 4-allyl-2-methoxyphenol solution;

[0010] The 3-phenylpropenal solution and the 4-allyl-2-methoxyphenol solution are mixed, and olefin-modified nano zinc oxide and a photoinitiator are added, and ultrasonic dispersion is performed to obtain a composite finishing agent;

[0011] The olefin modified polyester fabric is immersed in a composite finishing agent, reacted, and after the reaction is completed, the composite finishing agent is rolled off, washed, and dried to obtain a modified polyester fabric;

[0012] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0013] The modified polyester fabric is used as the outer layer fabric and is compounded with the inner layer fabric in equal areas to obtain the antibacterial and mosquito-proof polyester fabric.

[0014] Preferably, in step 1, the warp density of the polyester fabric is 160-170 strands / cm, and the weft density is 80-90 strands / cm.

[0015] Preferably, in step 1, the mass ratio of polyester fabric to methacrylic anhydride is 1:(5-10), and the reaction conditions are 0-5° C. for 20-30 hours.

[0016] Preferably, in the step 2, when preparing the composite finishing agent, in the 3-phenylacrolein solution, the mass ratio of 3-phenylacrolein to ethanol is 1:(5-10), in the 4-allyl-2-methoxyphenol solution, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:(5-10), and the mass ratio of olefin-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol, and photoinitiator is (65-75):(132-140):(164-172):(4-12).

[0017] Preferably, the photoinitiator comprises benzoin dimethyl ether.

[0018] Preferably, the alkenyl-modified nano zinc oxide is prepared by the following steps:

[0019] Add γ-methacryloxypropyltrimethoxysilane to an ethanol aqueous solution, adjust the pH value to 4, add nano zinc oxide, react, filter, wash and dry after the reaction to obtain olefin-modified nano zinc oxide.

[0020] Furthermore, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and ethanol aqueous solution is 5:(5-7):(80-120), and the reaction conditions are stirring at a speed of 300-500 r / min and a temperature of 50-70° C. for 3-5 hours.

[0021] Furthermore, the ethanol aqueous solution is a 95wt% ethanol aqueous solution.

[0022] Preferably, in the step 2, when preparing the composite finishing agent, the ultrasonic dispersion is carried out under the following conditions: ultrasonic dispersion at a frequency of 40-60 Hz for 30-60 min under light-proof conditions.

[0023] Preferably, in the step 2, when preparing the modified polyester fabric, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent is 1:10.

[0024] Preferably, in the step 2, when preparing the modified polyester fabric, the reaction condition is to irradiate the fabric under ultraviolet light with a wavelength of 365 nm for 30 minutes.

[0025] Preferably, in step three, the warp density of the inner layer fabric is 160-170 strands / cm, and the weft density is 80-90 strands / cm.

[0026] Preferably, the microporous polyester filament is defined as a polyester filament with a fineness of 83D, a spinneret number of 144, and a single filament fineness of 6-15 μm.

[0027] Further, the microporous polyester filament is prepared by spinning polyester chips;

[0028] The parameters of the spinning process are: spinning temperature is 292-308°C; side blowing temperature is 22-30°C, humidity is 50%-75%RH, wind speed is 0.25-0.45m / s, the bunching oil position is set at 0.4-1.5m, the spinning tension is controlled at 0.1-0.2cN / dtex, the draft multiple is 1.05-1.18, and the winding speed is 2400-3000m / min.

[0029] The present invention also provides an antibacterial and anti-mosquito polyester fabric prepared by adopting the above-mentioned method for preparing the antibacterial and anti-mosquito polyester fabric.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] In the present invention, the composite finishing agent includes 3-phenylacrolein, 4-allyl-2-methoxyphenol and alkenyl-modified nano zinc oxide. 3-phenylacrolein and 4-allyl-2-methoxyphenol are used as aromatic antibacterial and mosquito-proof materials, and nano zinc oxide is used as an inorganic antibacterial material. The polyester fabric is modified together, and the antibacterial and mosquito-proof effect of the polyester fabric can be effectively improved.

[0032] When preparing the alkenyl-modified polyester fabric, methacrylic anhydride undergoes an esterification reaction with the hydroxyl group at the end of the polyester molecule under alkaline conditions, and an alkenyl group is introduced into the polyester molecule. Then, the alkenyl group reacts with 3-phenylacrolein, 4-allyl-2-methoxyphenol and alkenyl-modified nano zinc oxide, and a vinyl free radical polymerization reaction occurs under ultraviolet light irradiation conditions and under the action of a photoinitiator. While retaining the functional group phenolic hydroxyl group of 4-allyl-2-methoxyphenol and the functional group aldehyde group of 3-phenylacrolein, 3-phenylacrolein, 4-allyl-2-methoxyphenol and nano zinc oxide are connected to the polyester molecule through a stable chemical bond, thereby effectively improving the bonding strength of the nano zinc oxide and the polyester, and avoiding the problem of reduced antibacterial and mosquito-proofing effect caused by the high volatility of 3-phenylacrolein and 4-allyl-2-methoxyphenol. The antibacterial and mosquito-proofing effect of the polyester fabric is long-lasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a process flow chart of the preparation of the antibacterial and mosquito-proof polyester fabric of the present invention;

[0034] Figure 2 It is a bar graph showing the test results of the antibacterial rate of the antibacterial and mosquito-proof polyester fabrics prepared in Examples 1-6 of the present invention and Comparative Examples 1-2 when washed 0 times;

[0035] Figure 3 It is a bar graph of the test results of the antibacterial rate of the antibacterial and mosquito-proof polyester fabrics prepared in Examples 1-6 of the present invention and Comparative Examples 1-2 after washing 30 times;

[0036] Figure 4 It is a bar chart showing the test results of the antibacterial and anti-mosquito polyester fabrics prepared in Examples 1-6 of the present invention and Comparative Examples 1-2 for the anti-mosquito performance. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0040] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0041] Among them, the warp density of polyester fabric is 170 strands / cm, and the weft density is 90 strands / cm;

[0042] The polyester fabric is added to methacrylic anhydride, the mass ratio of the polyester fabric to the methacrylic anhydride is 1:5, triethylamine is added to adjust the pH value to 7.5, and the reaction is carried out at 0°C for 30 hours. After the reaction is completed, the fabric is drained, washed with deionized water for 5 times, and dried at 50°C for 10 hours to obtain an olefin-modified polyester fabric;

[0043] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:5, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:5, and a 4-allyl-2-methoxyphenol solution is obtained;

[0044] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and olefin-modified nano zinc oxide and a photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of olefin-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and a photoinitiator benzoin dimethyl ether was 65:132:164:4, and ultrasonically dispersed at a frequency of 40 Hz for 60 minutes under light-proof conditions to obtain a composite finishing agent;

[0045] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0046] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:5:80, and the mixture was reacted at a stirring speed of 300r / min and a temperature of 50°C for 5h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0047] The olefin-modified polyester fabric was immersed in a composite finishing agent, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent was 1:10, and the fabric was irradiated under ultraviolet light with a wavelength of 365 nm for 30 minutes for reaction. After the reaction was completed, the composite finishing agent was rolled off, the fabric was washed with ethanol for 3 times, and dried at 50° C. for 10 hours to obtain a modified polyester fabric.

[0048] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0049] Among them, the warp density of the inner layer fabric is 165 strands / cm, and the weft density is 120 strands / cm;

[0050] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0051] Example 2

[0052] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0053] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0054] Among them, the warp density of polyester fabric is 160 strands / cm, and the weft density is 80 strands / cm;

[0055] The polyester fabric is added to methacrylic anhydride, the mass ratio of the polyester fabric to the methacrylic anhydride is 1:10, triethylamine is added to adjust the pH value to 8.5, and the reaction is carried out at a temperature of 5°C for 20 hours. After the reaction is completed, the fabric is drained, washed with deionized water for 5 times, and dried at 50°C for 10 hours to obtain an olefin-modified polyester fabric;

[0056] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:10, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:10, and a 4-allyl-2-methoxyphenol solution is obtained;

[0057] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and olefin-modified nano zinc oxide and a photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of olefin-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and a photoinitiator benzoin dimethyl ether was 75:140:172:12, and ultrasonically dispersed at a frequency of 60 Hz for 30 minutes under light-proof conditions to obtain a composite finishing agent;

[0058] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0059] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:7:120, and the mixture was reacted at a stirring speed of 500r / min and a temperature of 70°C for 3h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0060] The olefin-modified polyester fabric was immersed in a composite finishing agent, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent was 1:10, and the fabric was irradiated under ultraviolet light with a wavelength of 365 nm for 30 minutes for reaction. After the reaction was completed, the composite finishing agent was rolled off, the fabric was washed with ethanol for 3 times, and dried at 50° C. for 10 hours to obtain a modified polyester fabric.

[0061] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0062] Among them, the warp density of the inner layer fabric is 175 strands / cm, and the weft density is 140 strands / cm;

[0063] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0064] Example 3

[0065] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0066] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0067] Among them, the warp density of polyester fabric is 165 threads / cm, and the weft density is 85 threads / cm;

[0068] The polyester fabric was added to methacrylic anhydride, the mass ratio of the polyester fabric to the methacrylic anhydride was 1:10, triethylamine was added to adjust the pH value to 8, and the reaction was carried out at a temperature of 1°C for 25 hours. After the reaction was completed, the fabric was drained, washed with deionized water for 5 times, and dried at 50°C for 10 hours to obtain an olefin-modified polyester fabric;

[0069] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:6, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:6, and a 4-allyl-2-methoxyphenol solution is obtained;

[0070] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and alkenyl-modified nano zinc oxide and photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of alkenyl-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and photoinitiator benzoin dimethyl ether was 67:133.5:165.5:6, and ultrasonically dispersed at a frequency of 50 Hz for 45 minutes under light-proof conditions to obtain a composite finishing agent;

[0071] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0072] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:6:120, and the mixture was reacted at a stirring speed of 400r / min and a temperature of 60°C for 4h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0073] The olefin-modified polyester fabric was immersed in a composite finishing agent, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent was 1:10, and the fabric was irradiated under ultraviolet light with a wavelength of 365 nm for 30 minutes for reaction. After the reaction was completed, the composite finishing agent was rolled off, the fabric was washed with ethanol for 3 times, and dried at 50° C. for 10 hours to obtain a modified polyester fabric.

[0074] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0075] Among them, the warp density of the inner layer fabric is 170 strands / cm, and the weft density is 130 strands / cm;

[0076] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0077] Example 4

[0078] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0079] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0080] Among them, the warp density of polyester fabric is 165 threads / cm, and the weft density is 85 threads / cm;

[0081] The polyester fabric was added to methacrylic anhydride, the mass ratio of the polyester fabric to the methacrylic anhydride was 1:10, triethylamine was added to adjust the pH value to 8, and the reaction was carried out at 2°C for 25 hours. After the reaction was completed, the fabric was drained, washed with deionized water for 5 times, and dried at 50°C for 10 hours to obtain an olefin-modified polyester fabric;

[0082] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:7, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:7, and a 4-allyl-2-methoxyphenol solution is obtained;

[0083] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and alkenyl-modified nano zinc oxide and photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of alkenyl-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and photoinitiator benzoin dimethyl ether was 69:135:168:7.5, and ultrasonically dispersed at a frequency of 50 Hz for 45 minutes under light-proof conditions to obtain a composite finishing agent;

[0084] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0085] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:6:90, and the mixture was reacted at a stirring speed of 400r / min and a temperature of 60°C for 4h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0086] The olefin-modified polyester fabric was immersed in a composite finishing agent, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent was 1:10, and the fabric was irradiated under ultraviolet light with a wavelength of 365 nm for 30 minutes for reaction. After the reaction was completed, the composite finishing agent was rolled off, the fabric was washed with ethanol for 3 times, and dried at 50° C. for 10 hours to obtain a modified polyester fabric.

[0087] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0088] Among them, the warp density of the inner layer fabric is 170 strands / cm, and the weft density is 130 strands / cm;

[0089] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0090] Example 5

[0091] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0092] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0093] Among them, the warp density of polyester fabric is 165 threads / cm, and the weft density is 85 threads / cm;

[0094] The polyester fabric was added to methacrylic anhydride, the mass ratio of the polyester fabric to the methacrylic anhydride was 1:10, triethylamine was added to adjust the pH value to 8, and the reaction was carried out at 3°C ​​for 25 hours. After the reaction was completed, the fabric was drained, washed with deionized water for 5 times, and dried at 50°C for 10 hours to obtain an olefin-modified polyester fabric;

[0095] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:8, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:8, and a 4-allyl-2-methoxyphenol solution is obtained;

[0096] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and olefin-modified nano zinc oxide and photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of olefin-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and photoinitiator benzoin dimethyl ether was 71:136.5:169:9, and ultrasonically dispersed at a frequency of 50 Hz for 45 minutes under light-proof conditions to obtain a composite finishing agent;

[0097] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0098] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:6:90, and the mixture was reacted at a stirring speed of 400r / min and a temperature of 60°C for 4h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0099] The olefin-modified polyester fabric was immersed in a composite finishing agent, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent was 1:10, and the fabric was irradiated under ultraviolet light with a wavelength of 365 nm for 30 minutes for reaction. After the reaction was completed, the composite finishing agent was rolled off, the fabric was washed with ethanol for 3 times, and dried at 50° C. for 10 hours to obtain a modified polyester fabric.

[0100] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0101] Among them, the warp density of the inner layer fabric is 170 strands / cm, and the weft density is 130 strands / cm;

[0102] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0103] Example 6

[0104] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0105] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0106] Among them, the warp density of polyester fabric is 165 threads / cm, and the weft density is 85 threads / cm;

[0107] The polyester fabric was added to methacrylic anhydride, the mass ratio of the polyester fabric to the methacrylic anhydride was 1:10, triethylamine was added to adjust the pH value to 8, and the reaction was carried out at 4°C for 25 hours. After the reaction was completed, the fabric was drained, washed with deionized water for 5 times, and dried at 50°C for 10 hours to obtain an olefin-modified polyester fabric;

[0108] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:9, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:9, and a 4-allyl-2-methoxyphenol solution is obtained;

[0109] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and alkenyl-modified nano zinc oxide and photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of alkenyl-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and photoinitiator benzoin dimethyl ether was 73:138:171:11, and ultrasonic dispersion was performed at a frequency of 50 Hz for 45 minutes under light-proof conditions to obtain a composite finishing agent;

[0110] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0111] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:6:90, and the mixture was reacted at a stirring speed of 400r / min and a temperature of 60°C for 4h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0112] The olefin-modified polyester fabric was immersed in a composite finishing agent, the mass ratio of the olefin-modified polyester fabric to the composite finishing agent was 1:10, and the fabric was irradiated under ultraviolet light with a wavelength of 365 nm for 30 minutes for reaction. After the reaction was completed, the composite finishing agent was rolled off, the fabric was washed with ethanol for 3 times, and dried at 50° C. for 10 hours to obtain a modified polyester fabric.

[0113] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0114] Among them, the fineness of microporous polyester filament is 30D;

[0115] The warp density of the inner fabric is 170 threads / cm, and the weft density is 130 threads / cm;

[0116] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0117] Comparative Example 1

[0118] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0119] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0120] Among them, the warp density of polyester fabric is 170 strands / cm, and the weft density is 90 strands / cm;

[0121] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:5, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:5, and a 4-allyl-2-methoxyphenol solution is obtained;

[0122] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and olefin-modified nano zinc oxide and a photoinitiator benzoin dimethyl ether were added, wherein the mass ratio of olefin-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol and a photoinitiator benzoin dimethyl ether was 65:132:164:4, and ultrasonically dispersed at a frequency of 40 Hz for 60 minutes under light-proof conditions to obtain a composite finishing agent;

[0123] Among them, the olefin-modified nano zinc oxide comprises the following steps:

[0124] γ-methacryloxypropyltrimethoxysilane was added to a 95wt% ethanol aqueous solution, 1mol / L hydrochloric acid aqueous solution was added to adjust the pH value to 4, nano zinc oxide was added, the mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and 95wt% ethanol aqueous solution was 5:5:80, and the mixture was reacted at a stirring speed of 300r / min and a temperature of 50°C for 5h. After the reaction was completed, the mixture was filtered, washed with ethanol for 3 times, and dried in a vacuum oven at 80°C for 10h to obtain olefin-modified nano zinc oxide;

[0125] The polyester fabric was immersed in the composite finishing agent, the mass ratio of the polyester fabric to the composite finishing agent was 1:10, and irradiated under ultraviolet light with a wavelength of 365nm for 30min to react. After the reaction was completed, the composite finishing agent was rolled off, washed with ethanol for 3 times, and dried at 50℃ for 10h to obtain a modified polyester fabric;

[0126] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0127] Among them, the warp density of the inner layer fabric is 165 strands / cm, and the weft density is 120 strands / cm;

[0128] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0129] Comparative Example 2

[0130] A method for preparing an antibacterial and mosquito-proof polyester fabric comprises the following steps:

[0131] Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun by shuttle weaving process;

[0132] Among them, the warp density of polyester fabric is 170 strands / cm, and the weft density is 90 strands / cm;

[0133] Step 2, adding 3-phenylacrolein to ethanol and dissolving it, the mass ratio of 3-phenylacrolein to ethanol is 1:5, and a 3-phenylacrolein solution is obtained; adding 4-allyl-2-methoxyphenol to ethanol and dissolving it, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:5, and a 4-allyl-2-methoxyphenol solution is obtained;

[0134] The 3-phenylacrolein solution and the 4-allyl-2-methoxyphenol solution were mixed, and nano zinc oxide was added, wherein the mass ratio of nano zinc oxide, 3-phenylacrolein and 4-allyl-2-methoxyphenol was 58:132:164, and ultrasonic dispersion was performed at a frequency of 40 Hz for 60 minutes under light-proof conditions to obtain a composite finishing agent;

[0135] The polyester fabric is immersed in the composite finishing agent, the mass ratio of the polyester fabric to the composite finishing agent is 1:10, the fabric is immersed at 50°C for 30 minutes, the composite finishing agent is rolled off, and the fabric is dried at 50°C for 10 hours to obtain a modified polyester fabric;

[0136] Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process;

[0137] Among them, the warp density of the inner layer fabric is 165 strands / cm, and the weft density is 120 strands / cm;

[0138] The modified polyester fabric is used as the outer fabric, and the outer fabric and the inner fabric are connected with equal areas by polyester yarn to obtain the antibacterial and mosquito-proof polyester fabric.

[0139] In the above embodiments and comparative examples:

[0140] The microporous polyester filament is homemade, and is obtained by spinning polyester (PET) slices. The specification of the obtained filament is 83D / 144F, and the fineness of a single filament is 10μm. The parameters of the spinning process are: spinning temperature is 295℃; side blowing temperature is 25℃, humidity is 50%RH, wind speed is 0.3m / s, the bundling oil position is set at 1m, the spinning tension is controlled at 0.15cN / dtex, the draft multiple is 1.1, and the winding speed is 2500m / min. Polyester chips were purchased from Dongguan Aoya Plastic Raw Materials Co., Ltd., model: FR531, melting point of 250-255°C, initial decomposition temperature of 306-316°C; polyester filament was purchased from Kaishi Group Co., Ltd., specification of 75D / 144F; nano zinc oxide was purchased from Darcin Nano Technology (Changzhou) Co., Ltd., model: DXN-HQ20W, particle size: 50nm; polyester yarn was purchased from Xingcai Industrial Co., Ltd., item number: S.Cafe, specification: 40S / 2.

[0141] Test example

[0142] The performance tests were conducted on the antibacterial and anti-mosquito polyester fabrics prepared in Examples 1-6 and Comparative Examples 1-2:

[0143] (1) Antibacterial performance test: The antibacterial properties of the polyester fabrics prepared in Examples 1-6 and Comparative Examples 1-2 were tested respectively. The test method was based on the standard GB / T20944.3-2008 "Evaluation of antibacterial properties of textiles Part 3: Oscillation method". The test results are shown in Table 1:

[0144] Table 1

[0145]

[0146] (2) Anti-mosquito performance test: The anti-mosquito performance of the polyester fabrics prepared in Examples 1-6 and Comparative Examples 1-2 was tested respectively. The test method was based on the standard GB / T30126-2013 "Testing and evaluation of anti-mosquito performance of textiles". The test results are shown in Table 2:

[0147] Table 2

[0148]

[0149] As shown in Table 1 and Table 2, the polyester fabric prepared by the present invention has good antibacterial and mosquito-proof properties. 3-phenylpropenal and 4-allyl-2-methoxyphenol are used as aromatic antibacterial and mosquito-proof materials, and nano zinc oxide is used as an inorganic antibacterial material to modify the polyester fabric together, which can effectively improve the antibacterial and mosquito-proof effect of the polyester fabric. 3-phenylpropenal, 4-allyl-2-methoxyphenol and alkenyl-modified nano zinc oxide are connected to the polyester molecule with a stable chemical bond through free radical polymerization, which effectively improves the bonding strength of nano zinc oxide and polyester, avoids the problem of reduced antibacterial and mosquito-proof effect caused by the high volatility of 3-phenylpropenal and 4-allyl-2-methoxyphenol, and the polyester fabric has a long-lasting antibacterial and mosquito-proof effect. After washing 30 times, the antibacterial rate is still above 90%, and the mosquito-proof repellent rate can reach above 85%. Compared with Example 1, in Comparative Example 1, the polyester fabric is not olefin-modified, and 3-phenylacrolein, 4-allyl-2-methoxyphenol and olefin-modified nano zinc oxide in the composite finishing agent undergo polymerization reaction, and the polymerization product can be entangled with the polyester molecular chain, but because the antibacterial and anti-mosquito component is not connected to the polyester molecule with a stable chemical bond, the bonding strength with the polyester fabric is reduced, and the antibacterial and anti-mosquito properties are both reduced. After multiple washings, the antibacterial and anti-mosquito component is further detached from the polyester fabric, and the antibacterial and anti-mosquito properties are greatly reduced. In Comparative Example 2, 3-phenylacrolein, 4-allyl-2-methoxyphenol and nano zinc oxide in the composite finishing agent are only adsorbed on the polyester fabric by adsorption, and the surface of the polyester fabric is flat and smooth, the adsorption effect is weak, and 3-phenylacrolein and 4-allyl-2-methoxyphenol are volatile, so the antibacterial and mosquito-proof properties of the modified polyester fabric are significantly reduced. After multiple washings, the antibacterial and mosquito-proof properties of the modified polyester fabric are reduced more significantly.

[0150] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing an antibacterial and mosquito-proof polyester fabric, characterized in that: The following steps are involved: Step 1: First, the polyester filaments are used as warp yarns and weft yarns respectively, and the polyester fabrics are spun into polyester fabrics through a weaving process; Adding polyester fabric to methacrylic anhydride, adding triethylamine to adjust the pH value to 7.5-8.5, reacting, and after the reaction is completed, draining, washing, and drying to obtain olefin-modified polyester fabric; The mass ratio of polyester fabric to methacrylic anhydride is 1:(5-10), and the reaction conditions are 0-5°C for 20-30h; Step 2: adding 3-phenylacrolein into ethanol and dissolving it to obtain a 3-phenylacrolein solution; adding 4-allyl-2-methoxyphenol into ethanol and dissolving it to obtain a 4-allyl-2-methoxyphenol solution; The 3-phenylpropenal solution and the 4-allyl-2-methoxyphenol solution are mixed, and olefin-modified nano zinc oxide and a photoinitiator are added, and ultrasonic dispersion is performed to obtain a composite finishing agent; Wherein, in the 3-phenylacrolein solution, the mass ratio of 3-phenylacrolein to ethanol is 1:(5-10), in the 4-allyl-2-methoxyphenol solution, the mass ratio of 4-allyl-2-methoxyphenol to ethanol is 1:(5-10), and the mass ratio of olefin-modified nano zinc oxide, 3-phenylacrolein, 4-allyl-2-methoxyphenol, and photoinitiator is (65-75):(132-140):(164-172):(4-12); The olefin-modified nano zinc oxide is prepared by the following steps: Adding γ-methacryloxypropyltrimethoxysilane to an ethanol aqueous solution, adjusting the pH value to 4, adding nano zinc oxide, reacting, filtering, washing, and drying after the reaction is completed to obtain olefin-modified nano zinc oxide; The mass ratio of nano zinc oxide, γ-methacryloxypropyltrimethoxysilane and ethanol aqueous solution is 5:(5-7):(80-120), and the reaction conditions are 300-500 r / min stirring speed and 50-70° C. temperature for 3-5 hours; The olefin modified polyester fabric is immersed in a composite finishing agent, reacted, and after the reaction is completed, the composite finishing agent is rolled off, washed, and dried to obtain a modified polyester fabric; Among them, the mass ratio of olefin-modified polyester fabric to composite finishing agent is 1:10; The reaction conditions were to irradiate the reaction under ultraviolet light with a wavelength of 365 nm for 30 min; Step 3, using the microporous polyester filaments as warp yarns and weft yarns respectively, and spinning them into inner layer fabrics through a weaving process; The modified polyester fabric is used as the outer layer fabric and is compounded with the inner layer fabric in equal areas to obtain the antibacterial and mosquito-proof polyester fabric.

2. The method for preparing an antibacterial and anti-mosquito polyester fabric according to claim 1, characterized in that: In the step 1, the warp density of the polyester fabric is 160-170 strands / cm, and the weft density is 80-90 strands / cm.

3. The method for preparing an antibacterial and anti-mosquito polyester fabric according to claim 1, characterized in that: In the step 2, when preparing the composite finishing agent, the ultrasonic dispersion conditions are: ultrasonic dispersion at a frequency of 40-60 Hz for 30-60 minutes in a light-proof environment.

4. The method for preparing an antibacterial and anti-mosquito polyester fabric according to claim 1, characterized in that: In the step 3, the warp density of the inner layer fabric is 165-175 strands / cm, and the weft density is 120-140 strands / cm.

5. An antibacterial and anti-mosquito polyester fabric prepared by the method for preparing the antibacterial and anti-mosquito polyester fabric as described in any one of claims 1 to 4.

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