Environment-friendly curtain fabric with mosquito-preventing and insect-repelling effects and preparation method of environment-friendly curtain fabric

Abstract

The invention discloses an environment-friendly curtain fabric with mosquito-preventing and insect-repelling effects and a preparation method thereof, and belongs to the technical field of fabric processing.The preparation method comprises the following steps that modal fibers and nylon fibers are blended to obtain warp yarns, and tencel fibers and nylon fibers are blended to obtain weft yarns; weaving warp yarns and weft yarns by adopting a plain structure to obtain plain grey cloth; and adding plain grey cloth into the antibacterial and insect-repelling finishing liquid for dipping, dipping twice and rolling twice, baking and shaping, washing and drying to obtain the environment-friendly curtain fabric with the mosquito-repelling and insect-repelling effects. Wherein the antibacterial insect repellent finishing liquid is prepared from a microencapsulated antibacterial insect repellent, 1, 2-bis (trimethoxysilyl) ethane, sodium poly [(naphthaleneformaldehyde) sulfonate] and water. The prepared curtain fabric is environment-friendly, simple and convenient in process, stable in performance, easy to clean, comfortable and durable, and has excellent anti-mosquito, insect-repelling and antibacterial properties.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric processing, and in particular relates to an environmentally friendly curtain fabric with mosquito and insect repellent effects and a preparation method thereof. Background Art

[0002] As an important part of interior decoration, curtain fabrics not only provide shading, privacy protection and indoor temperature regulation for the room, but also greatly enrich the visual effect and artistic expression of the interior space through the diversity of its materials, patterns and colors. With the improvement of people's living standards and the diversification of aesthetic concepts, the types and materials of curtain fabrics are becoming increasingly rich. From traditional cotton, linen, silk to modern polyester, nylon, bamboo fiber, etc., each fabric has its unique texture, color and pattern, which can meet the needs of different groups of people. In the selection of curtain fabrics, in addition to considering its decorative effect, people will also pay attention to its functionality, such as breathability, wear resistance, stain resistance, antibacterial and mildew resistance, mosquito repellent, and whether it is easy to clean and maintain, etc. In addition, the environmental protection of curtain fabrics is also increasingly valued. People gradually tend to choose curtain fabrics produced with green and environmentally friendly materials and processes to reduce the impact on the environment and are safer and healthier. With the advancement of science and technology and the changes in people's needs, the development trend of curtain fabrics will pay more attention to environmental protection, functionality and personalized design to meet people's pursuit of a healthy, comfortable and beautiful living environment.

[0003] There are many kinds of curtain fabrics. According to the different materials, they can be divided into two categories: natural fiber fabrics and synthetic fiber fabrics. Natural fiber fabrics include cotton, linen, silk, wool, etc. They usually have good breathability and comfort, but may be slightly inferior in durability and easy cleaning. Synthetic fiber fabrics include polyester, nylon, acrylic, etc., which are widely popular for their wear resistance, easy cleaning, and not easy to fade. Among them, cotton fabrics are favored for their softness, breathability, and good moisture absorption, which are suitable for making warm and comfortable curtains; linen fabrics are rough in texture and have good breathability, which are suitable for modern and simple style interior decoration; silk fabrics are smooth and have high gloss, which are suitable for light luxury and elegant indoor environments; polyester fabrics are wear-resistant and easy to clean, and are one of the most common curtain fabrics, but their breathability is relatively poor; linen fabrics are hard in texture and have good breathability, which are suitable for natural style interior decoration; bamboo fiber fabrics are environmentally friendly and breathable, which meets the requirements of natural and green environmental protection. When choosing curtain fabrics, it is necessary to comprehensively consider factors such as interior style, functional requirements, durability, maintenance convenience, and budget. Durability and ease of maintenance are also factors to consider when choosing curtain fabrics. Choose wear-resistant and washable fabrics to extend their service life. At the same time, choose fabrics that are easy to clean and maintain to reduce the trouble of daily maintenance.

[0004] Chinese patent CN107254735A discloses a curtain fabric and a preparation method thereof, comprising the following steps: preparing fiber raw materials consisting of 30-50 parts of tencel fiber, 10-30 parts of hemp fiber, 10-30 parts of synthetic fiber and 10-30 parts of regenerated fiber into fiber raw strips, combining the raw strips on a blending machine to prepare raw strips, drafting and twisting the raw strips on a roving machine, and then passing through a spinning machine, a winding machine, a doubling machine and a twisting machine to prepare blended yarns, and finally adopting a rapier loom weaving method to prepare the curtain fabric; the curtain fabric of the patent is mixed and woven by rationally matching different fibers, so that they can play their respective advantages, have stable dimensions, small shrinkage, and have the characteristics of not easy to wrinkle, easy to wash and quick drying, and the use of artificial fibers can reduce costs.

[0005] Chinese patent CN108486886A discloses an insect repellent and mosquito-proof fabric, which is prepared by the following method: sending a blank into a No. 1 cylinder and a No. 2 cylinder for treatment in sequence, wherein the No. 1 cylinder is a mixed solution of pure water, hydrogen peroxide, soda ash, an anti-wrinkle agent and a degreasing agent, and the No. 2 cylinder is a mixed solution of a softener and pure water, washing and drying the blank after the above treatment, and then drying after being immersed in a primary impregnation liquid and a secondary impregnation liquid, wherein the primary impregnation liquid contains latex, polyvinyl alcohol, acrylic resin, natural chrysanthemum, patchouli, clove, angelica dahurica, notopterygium, melamine, and water, and the secondary impregnation liquid contains pyrethroids, propane, ethylene glycol, chlorpyrifos, cis-cypermethrin, sodium benzoate, polyvinyl formal, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, corn oil, and water, washing and drying, cutting, and packaging to obtain the insect repellent and mosquito-proof fabric; the fabric of this patent has a certain mosquito repellent effect, can emit fragrance, and clean the air. However, the curtain fabric disclosed in the above patent cannot take into account both functionality and durability at the same time, and its functionality will be significantly reduced with the increase in the number of uses and washings. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides an environmentally friendly curtain fabric with anti-mosquito and insect repellent effects. The grey cloth is woven with environmentally friendly renewable green fiber modal fiber, Tencel fiber and nylon fiber as raw materials, and then impregnated with antibacterial and insect repellent finishing liquid. While ensuring the basic properties of the fabric such as wear resistance, breathability, firmness and easy cleaning, it also has excellent anti-mosquito and insect repellent and antibacterial properties, stable performance, comfort and durability, and still has good insect repellent and antibacterial properties after multiple washings.

[0007] The technical solution adopted by the present invention is:

[0008] In a first aspect, the present invention provides a method for preparing an environmentally friendly curtain fabric with mosquito and insect repellent effects, comprising the following steps:

[0009] Step I: blending modal fiber with nylon fiber to obtain warp yarn, and blending tencel fiber with nylon fiber to obtain weft yarn;

[0010] Step II, taking the warp yarn and weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain grey cloth;

[0011] Step III, adding the plain fabric obtained in step II into the antibacterial and insect repellent finishing liquid for dipping, double dipping and double rolling, baking for finalizing, washing and drying after completion, thus obtaining the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect.

[0012] The present invention uses environmentally friendly renewable green fiber modal fiber, tencel fiber and nylon fiber as raw materials, and after blending, weaving and finishing, the final curtain fabric has the advantages of environmental protection, wear resistance, breathability, firmness and easy cleaning. Among them, tencel fiber is produced by solvent spinning technology, avoiding harmful chemicals used in traditional viscose fiber production, making tencel fiber more environmentally friendly, and the high rigidity of tencel fiber gives the fabric good structural stability, beautiful luster, soft feel and good drape; modal fiber is also a natural plant cellulose fiber, known for its softness, smoothness and silky feel, low washing shrinkage rate, good breathability, and its good glossiness and wear resistance make the fabric look elegant and durable.

[0013] Tencel fiber and Modal fiber are both environmentally friendly fiber materials extracted from natural plant cellulose. They each have unique physical and chemical properties. When these two fibers are blended with nylon fiber, they can complement each other, combining the environmental protection and comfort properties of natural fibers with the wear resistance and firmness of synthetic fibers. The addition of nylon fiber improves the strength and durability of curtain fabrics while maintaining the breathability and easy cleanability of the fabrics.

[0014] Preferably, a method for preparing an environmentally friendly curtain fabric with anti-mosquito and insect repellent effects comprises the following steps:

[0015] Step I: blending 50-70 parts by weight of modal fiber with 10-20 parts by weight of nylon fiber to obtain warp yarn, and blending 30-50 parts by weight of tencel fiber with 10-30 parts by weight of nylon fiber to obtain weft yarn;

[0016] Step II, taking the warp yarn and weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain grey cloth;

[0017] Step III, adding the plain fabric obtained in step II into the antibacterial and insect repellent finishing liquid for dipping, double dipping and double rolling, and then baking and shaping, and then washing and drying to obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect.

[0018] Preferably, the preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0019] The microencapsulated antibacterial and insect repellent, 1,2-bis(trimethoxysilyl)ethane, sodium polynaphthaldehyde sulfonate and water are uniformly mixed to obtain an antibacterial and insect repellent finishing liquid.

[0020] Preferably, the preparation method of the microencapsulated antibacterial insect repellent is as follows:

[0021] Add vanillin and 2-(2-aminoethyl)-3H-4-quinazolinone to chloroform, mix evenly, and reflux to obtain a hydroxy antibacterial Schiff base; add (±) trans-dichloropermethrin acid, hydroxy antibacterial Schiff base and sodium bisulfate to chloroform, mix evenly, and heat to obtain an antibacterial insect repellent;

[0022] The peppermint oil, the antibacterial insect repellent and isophorone diisocyanate are uniformly mixed, and then Tween 60, Span 80 and water are added for emulsification to obtain a microemulsion; then an ethylenediamine aqueous solution is added dropwise to the microemulsion to perform an interfacial polymerization reaction, and the mixture is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent.

[0023] The microencapsulated antibacterial insect repellent prepared by the present invention utilizes isophorone diisocyanate and ethylenediamine interfacial polymerization to generate a polyurea capsule material, and an active composition consisting of peppermint oil and the antibacterial insect repellent is encapsulated therein to achieve microencapsulation, thereby achieving a good anti-mosquito and insect repellent effect. When used in fabrics, the active composition can be slowly released during the use process, thereby giving the fabrics a long-lasting and stable anti-mosquito and insect repellent and antibacterial effect. The invention firstly reacts the aldehyde group in vanillin (containing hydroxyl) with the amino group in 2-(2-aminoethyl)-3H-4-quinazolinone to obtain a hydroxyl antibacterial Schiff base, and then reacts with the carboxyl group in chlorpyrifos under catalysis to obtain a quinazolinone / Schiff base / pyrethroid antibacterial insect repellent, which has excellent antibacterial and insect repellent effects; the peppermint oil can not only effectively repel mosquitoes, flies and other flying insects, but also refresh indoor air and improve air quality. The active compounds contained in the peppermint oil have strong lethality to pests and can drive them away, and have certain antibacterial and antiviral effects. When used together with the homemade antibacterial insect repellent, the synergistic effect is enhanced, and the mosquito-proof, insect-repellent and antibacterial effects of the fabric are significantly improved.

[0024] In addition, the sodium polynaphthaldehyde sulfonate used in the antibacterial and insect repellent finishing liquid of the present invention as a diffusion penetrant can effectively promote the microencapsulated antibacterial and insect repellent to be fully dispersed and immersed in the fiber tissue of the fabric, and 1,2-bis(trimethoxysilyl)ethane as a disilane crosslinking agent can covalently crosslink with active groups such as hydroxyl groups on the surface of the fabric fiber, play a bridging auxiliary role, and improve the bonding strength and bonding durability of the microencapsulated antibacterial and insect repellent to the fabric fiber. The isocyanate group contained in the polyurea capsule material of the microencapsulated antibacterial and insect repellent can also crosslink with the hydroxyl groups in the fabric fiber during baking and shaping, further improving the washability and durability of the fabric.

[0025] Preferably, the blending process in step I includes cleaning, carding, drawing, roving, spun yarn and winding.

[0026] Preferably, in step I, the warp yarn count is 60-80S and the weft yarn count is 50-70S.

[0027] Preferably, the plain woven fabric in step II has a warp density of 100-130 strands / inch and a weft density of 80-100 strands / inch.

[0028] Preferably, the bath ratio of the plain grey fabric to the antibacterial and insect repellent finishing liquid in step III is 1kg:15-25L.

[0029] Preferably, the immersion conditions in step III are: immersion at 30-40° C. for 30-50 min, and a rolling rate of 75-85%.

[0030] Preferably, the baking and shaping conditions in step III are: baking and shaping at 130-140° C. for 200-300 seconds.

[0031] Preferably, the preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0032] 10-20 parts by weight of vanillin and 10-30 parts by weight of 2-(2-aminoethyl)-3H-4-quinazolinone are added to 100-200 parts by weight of chloroform, mixed evenly, and refluxed at 60-70° C. and nitrogen atmosphere for 2-5 hours. After the reaction, the solvent is recovered to obtain a hydroxy antibacterial Schiff base; 10-20 parts by weight of (±) trans-dichloropermethrin, 10-15 parts by weight of hydroxy antibacterial Schiff base and 0.3-0.6 parts by weight of sodium bisulfate are added to 100-200 parts by weight of chloroform, mixed evenly, and reacted at 150-180° C., 0.2-0.4 MPa and nitrogen atmosphere for 6-8 hours. After the reaction, the solvent is recovered to obtain an antibacterial insect repellent;

[0033] 5-10 parts by weight of peppermint oil, 10-15 parts by weight of antibacterial insect repellent and 2-5 parts by weight of isophorone diisocyanate are uniformly mixed, and then 1-1.5 parts by weight of Tween 60, 0.5-1 parts by weight of Span 80 and 100-150 parts by weight of water are added for emulsification treatment for 10-30 minutes to obtain a microemulsion; then 20-50 parts by weight of a 10-15wt% ethylenediamine aqueous solution are added dropwise to the microemulsion at 60-70° C. and 100-300 rpm for 0.2-0.8 hours, and the interfacial polymerization reaction is continued for 3-6 hours. After completion, the mixture is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent;

[0034] 5-8 parts by weight of microencapsulated antibacterial and insect repellent, 1-3 parts by weight of 1,2-bis(trimethoxysilyl)ethane, 1-2 parts by weight of polynaphthaldehyde sulfonic acid sodium salt and 120-180 parts by weight of water are uniformly mixed to obtain an antibacterial and insect repellent finishing liquid.

[0035] Preferably, the conditions of the emulsification treatment are: temperature 40-50°C, rotation speed 8000-12000rpm.

[0036] Preferably, the particle size of the microencapsulated antibacterial and insect repellent is less than 6 μm; more preferably, the particle size is 2-5 μm.

[0037] In a first aspect, the present invention further provides an environmentally friendly curtain fabric with mosquito and insect repellent effects prepared by the above method.

[0038] Beneficial technical effects of the present invention:

[0039] The invention provides an environment-friendly curtain fabric with anti-mosquito and insect repellent effects. The grey cloth is woven by combining two environment-friendly renewable green fibers, modal fiber and tencel fiber, and nylon fiber as raw materials, and then is impregnated with an antibacterial and insect repellent finishing liquid composed of microencapsulated antibacterial and insect repellent agent, 1,2-bis(trimethoxysilyl)ethane, sodium polynaphthalene formaldehyde sulfonate and water. The obtained curtain fabric is not only wear-resistant, breathable and easy to clean, but also has excellent anti-mosquito and insect repellent and antibacterial properties, stable performance, and still has good insect repellent and antibacterial properties after repeated washing. DETAILED DESCRIPTION

[0040] The following will be combined with the specific 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.

[0041] Example 1

[0042] An environmentally friendly curtain fabric with anti-mosquito and insect repellent effects, the preparation method of which specifically comprises the following steps:

[0043] Step I, blending 60 parts by weight of modal fiber with 15 parts by weight of nylon fiber to obtain warp yarn, the warp yarn count is 70S; blending 40 parts by weight of tencel fiber with 20 parts by weight of nylon fiber to obtain weft yarn, the weft yarn count is 60S; the blending process includes cleaning, carding, drawing, roving, spun yarn and winding;

[0044] Step II, taking the warp yarn and the weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain weave fabric; wherein the warp density is 120 strands / inch and the weft density is 90 strands / inch;

[0045] Step III, add the plain fabric obtained in step II to the antibacterial and insect repellent finishing liquid at a bath ratio of 1kg:20L, immerse at 35°C for 45min, immerse twice and roll twice, the rolling rate is 80%, and then bake and shape at 135°C for 270s, wash and dry after the end, and obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect. Among them, the linear density of modal fiber is 1.0dtex and the length is 39mm, which is purchased from Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd.; the linear density of Tencel fiber (Tencel A100) is 1.4dtex and the length is 38mm, which is purchased from Lenzing (Nanjing) Fiber Co., Ltd.; the linear density of nylon fiber (nylon 6) is 1.67dtex and the length is 38mm.

[0046] The preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0047] 15 parts by weight of vanillin (CAS: 121-33-5) and 20 parts by weight of 2-(2-aminoethyl)-3H-4-quinazolinone (CAS: 437998-07-7) are added to 150 parts by weight of chloroform, mixed evenly, and refluxed at 65° C. in a nitrogen atmosphere for 3 hours. After the reaction is completed, the solvent is recovered to obtain a hydroxy antibacterial Schiff base; 15 parts by weight of (±) trans-dichloropermethrin (CAS: 55701-07-0), 12 parts by weight of hydroxy antibacterial Schiff base and 0.45 parts by weight of sodium bisulfate are added to 150 parts by weight of chloroform, mixed evenly, reacted at 160° C., 0.3 MPa and a nitrogen atmosphere for 7.5 hours. After the reaction is completed, the solvent is recovered to obtain an antibacterial insect repellent;

[0048] 8 parts by weight of peppermint oil (CAS: 8006-90-4), 12 parts by weight of antibacterial insect repellent and 3 parts by weight of isophorone diisocyanate are uniformly mixed, and then 1.25 parts by weight of Tween 60, 0.75 parts by weight of Span 80 and 125 parts by weight of water are added for emulsification treatment for 20 minutes to obtain a microemulsion; the emulsification treatment conditions are: temperature 46° C., rotation speed 10000 rpm; then 30 parts by weight of 12wt% ethylenediamine aqueous solution are added dropwise to the microemulsion at 65° C. and 200 rpm stirring conditions for 0.5 h, and the interfacial polymerization reaction is continued for 4.5 h. After the reaction is completed, the microencapsulated antibacterial insect repellent is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent;

[0049] 6.5 parts by weight of microencapsulated antibacterial and insect repellent, 2 parts by weight of 1,2-bis(trimethoxysilyl)ethane, 1.5 parts by weight of polynaphthaldehyde sulfonic acid sodium salt (CAS: 9084-06-4) and 150 parts by weight of water were uniformly mixed to obtain an antibacterial and insect repellent finishing liquid.

[0050] Example 2

[0051] An environmentally friendly curtain fabric with anti-mosquito and insect repellent effects, the preparation method of which specifically comprises the following steps:

[0052] Step I, blending 60 parts by weight of modal fiber with 15 parts by weight of nylon fiber to obtain warp yarn, the warp yarn count is 70S; blending 40 parts by weight of tencel fiber with 20 parts by weight of nylon fiber to obtain weft yarn, the weft yarn count is 60S; the blending process includes cleaning, carding, drawing, roving, spun yarn and winding;

[0053] Step II, taking the warp yarn and the weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain weave fabric; wherein the warp density is 120 strands / inch and the weft density is 90 strands / inch;

[0054] Step III, add the plain fabric obtained in step II to the antibacterial and insect repellent finishing liquid at a bath ratio of 1kg:20L, immerse at 35°C for 45min, immerse twice and roll twice, the rolling rate is 80%, and then bake and shape at 135°C for 270s, wash and dry after the end, and obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect. Among them, the linear density of modal fiber is 1.0dtex and the length is 39mm, which is purchased from Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd.; the linear density of Tencel fiber (Tencel A100) is 1.4dtex and the length is 38mm, which is purchased from Lenzing (Nanjing) Fiber Co., Ltd.; the linear density of nylon fiber (nylon 6) is 1.67dtex and the length is 38mm.

[0055] The preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0056] 15 parts by weight of vanillin (CAS: 121-33-5) and 20 parts by weight of 2-(2-aminoethyl)-3H-4-quinazolinone (CAS: 437998-07-7) are added to 150 parts by weight of chloroform, mixed evenly, and refluxed at 65° C. in a nitrogen atmosphere for 3 hours. After the reaction is completed, the solvent is recovered to obtain a hydroxy antibacterial Schiff base; 15 parts by weight of (±) trans-dichloropermethrin (CAS: 55701-07-0), 12 parts by weight of hydroxy antibacterial Schiff base and 0.45 parts by weight of sodium bisulfate are added to 150 parts by weight of chloroform, mixed evenly, reacted at 160° C., 0.3 MPa and a nitrogen atmosphere for 7.5 hours. After the reaction is completed, the solvent is recovered to obtain an antibacterial insect repellent;

[0057] 20 parts by weight of an antibacterial insect repellent and 3 parts by weight of isophorone diisocyanate are uniformly mixed, and then 1.25 parts by weight of Tween 60, 0.75 parts by weight of Span 80 and 125 parts by weight of water are added for emulsification treatment for 20 minutes to obtain a microemulsion; the emulsification treatment conditions are: temperature 46° C., rotation speed 10000 rpm; then 30 parts by weight of a 12 wt% ethylenediamine aqueous solution are added dropwise to the microemulsion at 65° C. and 200 rpm stirring conditions for 0.5 h, and the interfacial polymerization reaction is continued for 4.5 h. After the reaction is completed, the microencapsulated antibacterial insect repellent is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent;

[0058] 6.5 parts by weight of microencapsulated antibacterial and insect repellent, 2 parts by weight of 1,2-bis(trimethoxysilyl)ethane, 1.5 parts by weight of polynaphthaldehyde sulfonic acid sodium salt (CAS: 9084-06-4) and 150 parts by weight of water were uniformly mixed to obtain an antibacterial and insect repellent finishing liquid.

[0059] Example 3

[0060] An environmentally friendly curtain fabric with anti-mosquito and insect repellent effects, the preparation method of which specifically comprises the following steps:

[0061] Step I, blending 60 parts by weight of modal fiber with 15 parts by weight of nylon fiber to obtain warp yarn, the warp yarn count is 70S; blending 40 parts by weight of tencel fiber with 20 parts by weight of nylon fiber to obtain weft yarn, the weft yarn count is 60S; the blending process includes cleaning, carding, drawing, roving, spun yarn and winding;

[0062] Step II, taking the warp yarn and the weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain weave fabric; wherein the warp density is 120 strands / inch and the weft density is 90 strands / inch;

[0063] Step III, add the plain fabric obtained in step II to the insect repellent finishing liquid at a bath ratio of 1kg:20L, immerse at 35°C for 45min, immerse twice and roll twice, the rolling rate is 80%, and then bake and shape at 135°C for 270s, wash and dry after the end, and obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect. Among them, the linear density of modal fiber is 1.0dtex and the length is 39mm, which is purchased from Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd.; the linear density of Tencel fiber (Tencel A100) is 1.4dtex and the length is 38mm, which is purchased from Lenzing (Nanjing) Fiber Co., Ltd.; the linear density of nylon fiber (nylon 6) is 1.67dtex and the length is 38mm.

[0064] The preparation method of the insect repellent finishing liquid is as follows:

[0065] 20 parts by weight of peppermint oil (CAS: 8006-90-4) and 3 parts by weight of isophorone diisocyanate are mixed evenly, and then 1.25 parts by weight of Tween 60, 0.75 parts by weight of Span 80 and 125 parts by weight of water are added for emulsification treatment for 20 minutes to obtain a microemulsion; the conditions of the emulsification treatment are: temperature 46° C., rotation speed 10000 rpm; then 30 parts by weight of 12wt% ethylenediamine aqueous solution are added dropwise to the above microemulsion at 65° C. and 200 rpm stirring conditions, the dropping time is 0.5 h, and the interfacial polymerization reaction is continued for 4.5 h. After the reaction is completed, it is filtered, washed and dried to obtain a microencapsulated insect repellent; 6.5 parts by weight of microencapsulated insect repellent, 2 parts by weight of 1,2-bis(trimethoxysilyl)ethane, 1.5 parts by weight of polynaphthaldehyde sulfonic acid sodium salt (CAS: 9084-06-4) and 150 parts by weight of water are mixed evenly to obtain an insect repellent finishing liquid.

[0066] Example 4

[0067] An environmentally friendly curtain fabric with anti-mosquito and insect repellent effects, the preparation method of which specifically comprises the following steps:

[0068] Step I, blending 60 parts by weight of modal fiber with 15 parts by weight of nylon fiber to obtain warp yarn, the warp yarn count is 70S; blending 40 parts by weight of tencel fiber with 20 parts by weight of nylon fiber to obtain weft yarn, the weft yarn count is 60S; the blending process includes cleaning, carding, drawing, roving, spun yarn and winding;

[0069] Step II, taking the warp yarn and the weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain weave fabric; wherein the warp density is 120 strands / inch and the weft density is 90 strands / inch;

[0070] Step III, add the plain fabric obtained in step II to the antibacterial and insect repellent finishing liquid at a bath ratio of 1kg:20L, immerse at 35°C for 45min, immerse twice and roll twice, the rolling rate is 80%, and then bake and shape at 135°C for 270s, wash and dry after the end, and obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect. Among them, the linear density of modal fiber is 1.0dtex and the length is 39mm, which is purchased from Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd.; the linear density of Tencel fiber (Tencel A100) is 1.4dtex and the length is 38mm, which is purchased from Lenzing (Nanjing) Fiber Co., Ltd.; the linear density of nylon fiber (nylon 6) is 1.67dtex and the length is 38mm.

[0071] The preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0072] 15 parts by weight (±) of trans-dichloropermethrin (CAS: 55701-07-0), 12 parts by weight of vanillin (CAS: 121-33-5) and 0.45 parts by weight of sodium bisulfate are added to 150 parts by weight of chloroform and mixed evenly, and reacted at 160° C., 0.3 MPa and nitrogen atmosphere for 7.5 hours, and after the reaction, the solvent is recovered to obtain an antibacterial insect repellent;

[0073] 8 parts by weight of peppermint oil (CAS: 8006-90-4), 12 parts by weight of antibacterial insect repellent and 3 parts by weight of isophorone diisocyanate are uniformly mixed, and then 1.25 parts by weight of Tween 60, 0.75 parts by weight of Span 80 and 125 parts by weight of water are added for emulsification treatment for 20 minutes to obtain a microemulsion; the emulsification treatment conditions are: temperature 46° C., rotation speed 10000 rpm; then 30 parts by weight of 12wt% ethylenediamine aqueous solution are added dropwise to the microemulsion at 65° C. and 200 rpm stirring conditions for 0.5 h, and the interfacial polymerization reaction is continued for 4.5 h. After the reaction is completed, the microencapsulated antibacterial insect repellent is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent;

[0074] 6.5 parts by weight of microencapsulated antibacterial and insect repellent, 2 parts by weight of 1,2-bis(trimethoxysilyl)ethane, 1.5 parts by weight of polynaphthaldehyde sulfonic acid sodium salt (CAS: 9084-06-4) and 150 parts by weight of water were uniformly mixed to obtain an antibacterial and insect repellent finishing liquid.

[0075] Example 5

[0076] An environmentally friendly curtain fabric with anti-mosquito and insect repellent effects, the preparation method of which specifically comprises the following steps:

[0077] Step I, blending 60 parts by weight of modal fiber with 15 parts by weight of nylon fiber to obtain warp yarn, the warp yarn count is 70S; blending 40 parts by weight of tencel fiber with 20 parts by weight of nylon fiber to obtain weft yarn, the weft yarn count is 60S; the blending process includes cleaning, carding, drawing, roving, spun yarn and winding;

[0078] Step II, taking the warp yarn and the weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain weave fabric; wherein the warp density is 120 strands / inch and the weft density is 90 strands / inch;

[0079] Step III, add the plain fabric obtained in step II to the antibacterial and insect repellent finishing liquid at a bath ratio of 1kg:20L, immerse at 35°C for 45min, immerse twice and roll twice, the rolling rate is 80%, and then bake and shape at 135°C for 270s, wash and dry after the end, and obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect. Among them, the linear density of modal fiber is 1.0dtex and the length is 39mm, which is purchased from Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd.; the linear density of Tencel fiber (Tencel A100) is 1.4dtex and the length is 38mm, which is purchased from Lenzing (Nanjing) Fiber Co., Ltd.; the linear density of nylon fiber (nylon 6) is 1.67dtex and the length is 38mm.

[0080] The preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0081] 15 parts by weight of vanillin (CAS: 121-33-5) and 20 parts by weight of 2-(2-aminoethyl)-3H-4-quinazolinone (CAS: 437998-07-7) are added to 150 parts by weight of chloroform, mixed evenly, and refluxed at 65° C. in a nitrogen atmosphere for 3 hours. After the reaction is completed, the solvent is recovered to obtain a hydroxy antibacterial Schiff base; 15 parts by weight of (±) trans-dichloropermethrin (CAS: 55701-07-0), 12 parts by weight of hydroxy antibacterial Schiff base and 0.45 parts by weight of sodium bisulfate are added to 150 parts by weight of chloroform, mixed evenly, reacted at 160° C., 0.3 MPa and a nitrogen atmosphere for 7.5 hours. After the reaction is completed, the solvent is recovered to obtain an antibacterial insect repellent;

[0082] 6.5 parts by weight of an antibacterial insect repellent, 2 parts by weight of 1,2-bis(trimethoxysilyl)ethane, 1.5 parts by weight of polynaphthaldehyde sulfonic acid sodium salt (CAS: 9084-06-4) and 150 parts by weight of water were uniformly mixed to obtain an antibacterial insect repellent finishing liquid.

[0083] Example 6

[0084] An environmentally friendly curtain fabric with anti-mosquito and insect repellent effects, the preparation method of which specifically comprises the following steps:

[0085] Step I, blending 60 parts by weight of modal fiber with 15 parts by weight of nylon fiber to obtain warp yarn, the warp yarn count is 70S; blending 40 parts by weight of tencel fiber with 20 parts by weight of nylon fiber to obtain weft yarn, the weft yarn count is 60S; the blending process includes cleaning, carding, drawing, roving, spun yarn and winding;

[0086] Step II, taking the warp yarn and the weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain weave fabric; wherein the warp density is 120 strands / inch and the weft density is 90 strands / inch;

[0087] Step III, add the plain fabric obtained in step II to the antibacterial and insect repellent finishing liquid at a bath ratio of 1kg:20L, immerse at 35°C for 45min, immerse twice and roll twice, the rolling rate is 80%, and then bake and shape at 135°C for 270s, wash and dry after the end, and obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect. Among them, the linear density of modal fiber is 1.0dtex and the length is 39mm, which is purchased from Tangshan Sanyou Group Xingda Chemical Fiber Co., Ltd.; the linear density of Tencel fiber (Tencel A100) is 1.4dtex and the length is 38mm, which is purchased from Lenzing (Nanjing) Fiber Co., Ltd.; the linear density of nylon fiber (nylon 6) is 1.67dtex and the length is 38mm.

[0088] The preparation method of the antibacterial and insect repellent finishing liquid is as follows:

[0089] 15 parts by weight of vanillin (CAS: 121-33-5) and 20 parts by weight of 2-(2-aminoethyl)-3H-4-quinazolinone (CAS: 437998-07-7) are added to 150 parts by weight of chloroform, mixed evenly, and refluxed at 65° C. in a nitrogen atmosphere for 3 hours. After the reaction is completed, the solvent is recovered to obtain a hydroxy antibacterial Schiff base; 15 parts by weight of (±) trans-dichloropermethrin (CAS: 55701-07-0), 12 parts by weight of hydroxy antibacterial Schiff base and 0.45 parts by weight of sodium bisulfate are added to 150 parts by weight of chloroform, mixed evenly, reacted at 160° C., 0.3 MPa and a nitrogen atmosphere for 7.5 hours. After the reaction is completed, the solvent is recovered to obtain an antibacterial insect repellent;

[0090] 8 parts by weight of peppermint oil (CAS: 8006-90-4), 12 parts by weight of antibacterial insect repellent and 3 parts by weight of isophorone diisocyanate are uniformly mixed, and then 1.25 parts by weight of Tween 60, 0.75 parts by weight of Span 80 and 125 parts by weight of water are added for emulsification treatment for 20 minutes to obtain a microemulsion; the emulsification treatment conditions are: temperature 46° C., rotation speed 10000 rpm; then 30 parts by weight of 12wt% ethylenediamine aqueous solution are added dropwise to the microemulsion at 65° C. and 200 rpm stirring conditions for 0.5 h, and the interfacial polymerization reaction is continued for 4.5 h. After the reaction is completed, the microencapsulated antibacterial insect repellent is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent;

[0091] 6.5 parts by weight of the microencapsulated antibacterial and insect repellent were uniformly mixed with 153.5 parts by weight of water to obtain an antibacterial and insect repellent finishing liquid.

[0092] Test Example 1

[0093] According to the Technical Specifications for Disinfection (2002 Edition), the safety of the antibacterial and insect repellent finishing liquid prepared in Example 1 was evaluated. The test result of the sample on the rabbit's complete skin irritation test was non-irritating; the test result of the sample on the rabbit's acute eye irritation test was non-irritating.

[0094] Test Example 2

[0095] According to GB / T 20944.3-2008 "Evaluation of antibacterial properties of textiles Part 3: Oscillation method", the environmentally friendly curtain fabrics obtained in the above examples were tested for antibacterial properties, and the test bacteria were: Escherichia coli (ATCC 8739) and Staphylococcus aureus (ATCC6538). Five groups of each example were tested in parallel and the average value was taken.

[0096] Table 1. Antimicrobial test results

[0097]

[0098] Test Example 3

[0099] According to GB / T 30126-2013 "Testing and Evaluation of Mosquito-Repellent Performance of Textiles", the environmentally friendly curtain fabrics obtained in the above examples were tested for mosquito repellency (repellent tester). Among them, the repellency rate>70% is Class A, the repellency rate 50-70% is Class B, and the repellency rate 30-50% is Class C. Five groups of each example were tested in parallel and the average value was taken.

[0100] Table 2. Mosquito repellent test results

[0101]

[0102]

[0103] It can be seen that the environmentally friendly curtain fabric prepared by the present invention has excellent mosquito-proof and antibacterial effects, and maintains good effects after multiple washings, and is durable. In particular, the curtain fabric corresponding to Example 1 has the best performance. The polynaphthalene formaldehyde sulfonic acid sodium salt used in the antibacterial and insect repellent finishing liquid is used as a diffusion penetrant, which can effectively promote the microencapsulated antibacterial and insect repellent to be fully dispersed and immersed in the fiber tissue of the fabric. 1,2-Bis(trimethoxysilyl)ethane is used as a disilane crosslinking agent, which can covalently crosslink with active groups such as hydroxyl groups on the surface of the fabric fiber, play a bridging auxiliary role, and improve the bonding strength and bonding durability of the microencapsulated antibacterial and insect repellent to the fabric fiber. The isocyanate group contained in the polyurea capsule of the microencapsulated antibacterial and insect repellent can also bond with the surface during baking and shaping. The hydroxyl groups in the fiber of the material are cross-linked, so as to further improve the washability and durability of the fabric. The present invention utilizes the interfacial polymerization of isophorone diisocyanate and ethylenediamine to generate a polyurea capsule material, and encapsulates the active composition composed of peppermint oil and an antibacterial insect repellent to achieve microencapsulation. When used in the fabric, the active composition can be slowly released during the use process, so as to give the fabric a long-lasting and stable anti-mosquito and anti-insect and antibacterial effect. Compared with Examples 2-3, when peppermint oil and a homemade antibacterial insect repellent are used together in Example 1, the synergistic effect is enhanced, and the anti-mosquito and antibacterial effect of the fabric is significantly improved.

[0104] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A method for preparing an environmentally friendly curtain fabric with mosquito and insect repellent effects, characterized in that: The steps include: Step I: blending modal fiber with nylon fiber to obtain warp yarn, and blending tencel fiber with nylon fiber to obtain weft yarn; Step II, taking the warp yarn and weft yarn obtained in step I and weaving them in a plain weave structure to obtain a plain grey cloth; Step III, adding the plain fabric obtained in step II into the antibacterial and insect repellent finishing liquid for immersion, double immersion and double rolling, baking and shaping, washing and drying to obtain the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect; the antibacterial and insect repellent finishing liquid is composed of microencapsulated antibacterial and insect repellent, 1,2-bis(trimethoxysilyl)ethane, polynaphthalene formaldehyde sulfonic acid sodium salt and water.

2. The method for preparing the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect according to claim 1, characterized in that: The warp yarn in step I is obtained by blending 50-70 parts by weight of modal fiber and 10-20 parts by weight of nylon fiber, and the weft yarn is obtained by blending 30-50 parts by weight of tencel fiber and 10-30 parts by weight of nylon fiber.

3. The method for preparing the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect according to claim 1, characterized in that: The preparation method of the microencapsulated antibacterial insect repellent is as follows: Add vanillin and 2-(2-aminoethyl)-3H-4-quinazolinone to chloroform, mix evenly, and reflux to obtain a hydroxy antibacterial Schiff base; add (±) trans-dichloropermethrin acid, hydroxy antibacterial Schiff base and sodium bisulfate to chloroform, mix evenly, and heat to obtain an antibacterial insect repellent; The peppermint oil, the antibacterial insect repellent and isophorone diisocyanate are uniformly mixed, and then Tween 60, Span 80 and water are added for emulsification to obtain a microemulsion; then an ethylenediamine aqueous solution is added dropwise to the microemulsion to perform an interfacial polymerization reaction, and the mixture is filtered, washed and dried to obtain a microencapsulated antibacterial insect repellent.

4. The method for preparing the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect according to claim 1, characterized in that: The blending process described in step I includes cleaning, carding, drawing, roving, spinning and winding.

5. The method for preparing the environmentally friendly curtain fabric with anti-mosquito and insect repellent effect according to claim 1, characterized in that: In step I, the warp yarn count is 60-80S and the weft yarn count is 50-70S.

6. The method for preparing the environmentally friendly curtain fabric with anti-mosquito and insect repellent effects according to claim 1, characterized in that: The plain woven fabric in step II has a warp density of 100-130 strands / inch and a weft density of 80-100 strands / inch.

7. The method for preparing environmentally friendly curtain fabric with anti-mosquito and insect repellent effects according to claim 1, characterized in that: The bath ratio of the plain grey fabric to the antibacterial and insect repellent finishing liquid in step III is 1kg:15-25L.

8. The method for preparing environmentally friendly curtain fabric with anti-mosquito and insect repellent effects according to claim 1, characterized in that: The conditions for the impregnation in step III are: impregnation at 30-40° C. for 30-50 min, and a rolling rate of 75-85%.

9. The method for preparing environmentally friendly curtain fabric with anti-mosquito and insect repellent effects according to claim 1, characterized in that: The baking and shaping conditions in step III are: baking and shaping at 130-140° C. for 200-300 seconds.

10. An environmentally friendly curtain fabric with mosquito and insect repellent effects, characterized in that: Prepared according to the method according to any one of claims 1 to 9.

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