Light mesh technology with yarn and high elastic yarn

Abstract

The application relates to the technical field of textiles, and particularly discloses a yarn and high-elasticity filament light net process. The yarn and high-elasticity filament light net process comprises the following steps: S1, cotton fiber and polyamide fiber are blended to obtain yarn; S2, spandex filament subjected to plasma pretreatment is added into a soaking solution for treatment to obtain high-elasticity filament; and S3, the yarn and the high-elasticity filament are wound into a composite yarn after passing through a compressed air network device. The polyamide fiber comprises the following raw materials: polyamide, nano medical stone micro powder, modified nano titanium dioxide, maleic anhydride grafted polyamide, antioxidant and heat stabilizer. The light net process is simple in steps, low in cost and suitable for industrial production. The obtained composite yarn has excellent water absorption and air permeability, can relieve the hot and humid feeling, improve the crossbar phenomenon, form a bubble wrinkle effect, and has a wide market prospect.

Description

Technical Field

[0001] The present application relates to the field of textile technology, and more specifically, to a light mesh process of yarn and high-elastic yarn. Background Art

[0002] With the rapid development of economy, the market demand for spandex stretch fabric is increasing year by year. Spandex fabric can not only be used in swimwear, ski suits, gym suits, tight underwear, tights, etc., but is also developing towards fashion.

[0003] At present, CN116479580A discloses a warp-knitted double-comb spandex fabric and a weaving method thereof, wherein the warp-knitted double-comb spandex fabric comprises 40D / 12F matte nylon yarn and 40D spandex yarn with a 1-0 / 1-2 / / structure, wherein the 40D spandex yarn is covered with the 40D / 12F matte nylon yarn; the manufacturing method of the warp-knitted double-comb spandex fabric comprises the following steps: A. preparation: selecting nylon yarn, spandex yarn and a two-comb warp knitting machine; B. weaving; C. pre-dyeing treatment; D. dyeing; E. re-setting: the semi-finished product after dyeing is fed into a setting machine, the setting temperature of the setting machine is 160-180°C, 33 meters / minute, controlling a width of 152cm, and 165 grams / m 2 The obtained warp-knitted double-combed spandex fabric has a smooth surface and good hand feel. However, in the preparation process of the fabric, the problem of the large elasticity of spandex is ignored. During the weaving process, it is easy to have leaking, broken, reversed and double yarns, which will cause the fabric to have horizontal bars. In addition, the fabric is composed of two synthetic fibers, spandex and nylon, which have low water absorption and poor air permeability, and are entangled with static electricity accumulation, which will cause the fabric to have a "stuffy feeling". Therefore, it is urgent to improve the horizontal bar phenomenon and "stuffy feeling" of existing fabrics, make the fabric more comfortable to wear, have strong moisture absorption and good air permeability, give the fabric a diversified appearance and function, meet people's higher living needs, and expand the application range of spandex fabrics. Summary of the Invention

[0004] In order to solve the horizontal bar phenomenon and "stuffy feeling" problems of existing fabrics, the present application provides a light mesh process of yarn and high elastic yarn.

[0005] This application provides a light mesh process of yarn and high elastic yarn, using the following technical solutions:

[0006] The light mesh process of yarn and high elastic yarn includes the following steps:

[0007] S1, blending kapok fiber and polyamide fiber to obtain yarn;

[0008] S2, adding the plasma-pretreated spandex yarn into the soaking solution for treatment to obtain a high-elastic yarn;

[0009] S3, passing the yarn obtained in step S1 and the high elastic yarn obtained in step S2 together through a compressed air interlacing device, and then winding them to obtain a composite yarn;

[0010] The polyamide fiber comprises the following raw materials in parts by weight: 60-80 parts of polyamide, 4-9 parts of nano medical stone powder, 6-10 parts of modified nano titanium dioxide, 3-6 parts of maleic anhydride grafted polyamide, 2-3 parts of antioxidant, and 1-2 parts of heat stabilizer.

[0011] By adopting the above-mentioned technical scheme, the present application produces yarn with excellent hydrophilicity by blending kapok fiber and polyamide fiber; uses plasma to pretreat the spandex yarn, so that a large number of active groups appear on the surface of the spandex yarn; then uses soaking liquid treatment to obtain high-elastic yarn, which significantly improves the hydrophilicity of the spandex yarn; in the processing process of the air network device, the yarn is used as the wrapping yarn, and the high-elastic yarn is intertwined with the yarn, and the high-elastic yarn crosses through the yarn bundle many times, making it difficult for the high-elastic yarn to be pulled out from the entanglement knot, thereby obtaining a tightly structured composite yarn with excellent spinnability, and the woven fabric feels comfortable, effectively improving the horizontal bar phenomenon; at the same time, at non-network nodes, due to the retraction of the high-elastic yarn, the yarn will bend and curl up, forming a bubble wrinkle effect, making the style of the fabric more unique.

[0012] In addition, the raw materials of the polyamide fiber include polyamide, nano-medicinal stone powder, modified nano-titanium dioxide, maleic anhydride grafted polyamide, antioxidant, heat stabilizer, etc., and the weight proportions of each component are controlled within a certain range, which effectively promotes the interaction between the components, greatly improves the hydrophilicity of the polyamide fiber, and significantly improves the water absorbency and air permeability of the polyamide fiber; especially the addition of nano-medicinal stone powder and modified nano-titanium dioxide, the nano-medicinal stone powder is rich in many honeycomb micropores and a large number of secondary pores, and the modified nano-titanium dioxide is a microsphere with a large specific surface area. The different spatial structures of the two greatly increase the roughness of the polyamide fiber surface, thereby increasing the contact area between the polyamide fiber and water molecules. At the same time, the nano-medicinal stone powder and the modified nano-titanium dioxide have a large number of hydrophilic groups, which further improves the hydrophilicity of the polyamide fiber; the polyamide fiber of the present application can effectively improve the "stuffy feeling" of the fabric.

[0013] Preferably, the modified nano-titanium dioxide comprises the following raw materials in parts by weight: 10-15 parts of nano-titanium dioxide, 4-6 parts of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 5-8 parts of sodium 2,4-diaminobenzenesulfonate, 1-3 parts of glutaraldehyde, 0.05-0.1 parts of acetic acid, 50-100 parts of ethanol, and 4-6 parts of water.

[0014] Preferably, the modified nano titanium dioxide is prepared by the following method:

[0015] Step 1) ultrasonic dispersion of nano-titanium dioxide in 1 / 2 ethanol, addition of N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, stirring, heating to 60-70℃, reaction for 3-5h, filtration, washing, drying, grinding, to obtain aminated nano-titanium dioxide;

[0016] Step 2) addition of sodium 2,4-diamino benzene sulfonate and glutaraldehyde in 1 / 2 ethanol, condensation reflux at 70-80℃ for 1-2h, then addition of aminated nano-titanium dioxide obtained in step 1), stirring, dropwise addition of acetic acid, reaction for 2-3h, filtration, washing, drying, grinding, to obtain modified nano-titanium dioxide.

[0017] By using the above technical solution, in the process of preparing the modified nano-titanium dioxide, the hydrolysis of N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane is used to graft amino groups on the surface of nano-titanium dioxide, then glutaraldehyde is used to covalently connect the aminated nano-titanium dioxide and the hydrophilic substance sodium 2,4-diamino benzene sulfonate, and finally a highly cross-linked porous network structure is formed on the surface of nano-titanium dioxide, so that the modified nano-titanium dioxide has excellent hydrophilic performance and antibacterial performance.

[0018] Preferably, the antioxidant is obtained by mixing hydroxyphenyl benzotriazole and acetylcysteine in a mass ratio of 3:1-4.

[0019] Preferably, the heat stabilizer is dibutyltin dilaurate and / or zinc stearate.

[0020] Preferably, the polyamide fiber is prepared by the following method:

[0021] The polyamide, nano-microporous stone powder, modified nano-titanium dioxide, maleic anhydride grafted polyamide, antioxidant and heat stabilizer are uniformly mixed, extruded by a twin-screw blending extruder, and then melt spun to obtain the polyamide fiber.

[0022] Preferably, the temperature of the twin-screw blending extruder is 220-260℃.

[0023] Preferably, the temperature of the melt spinning is 250-290℃, the speed is 2000-4000m / min, the number of holes of the spinneret used is 36-144, the spinning draft ratio is 1.5-3.0 times, and the draft temperature is 90-120℃.

[0024] By using the above technical solution, the melt spinning method is used, and various process parameters are controlled, so that the components mutually assist each other, and the polyamide fiber with more excellent hydrophilic performance is obtained.

[0025] Preferably, the soaking solution is prepared by the following method:

[0026] According to parts by weight, 8-12 parts of chitosan, 2-5 parts of tea polyphenol, 4-6 parts of organic bentonite, 1-3 parts of hydrophilic ionic liquid, 5-8 parts of gamma-aminopropyl triethoxysilane and 0.6-1 part of sophorose are added into 40-60 parts of water, and then stirred uniformly to obtain the soaking solution.

[0027] By adopting the technical scheme, the soaking solution contains chitosan, tea polyphenol, organic bentonite, hydrophilic ionic liquid and gamma-aminopropyl triethoxysilane, and the components interact with each other to form a structure-tight hydrophilic film on the surface of the spandex yarn, thereby significantly improving the water absorption and air permeability of the spandex yarn.

[0028] Preferably, the hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazole acetate and 1-butyl-3-methylimidazole chloride in a mass ratio of 2-6:5.

[0029] By adopting the technical scheme, the hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazole acetate and 1-butyl-3-methylimidazole chloride, and the two are mixed in a specific mass ratio, thereby synergistically enriching the microstructure of the hydrophilic film and further improving the moisture absorption performance of the hydrophilic film.

[0030] Preferably, the mass ratio of the kapok fiber to the polyamide fiber in the step S1 is 2-3:6.

[0031] Preferably, the plasma treatment in the step S2 is performed under the following conditions: the gas source is a mixed gas of oxygen and nitrogen in a volume ratio of 1:2, the treatment frequency is 10-14 kHz, the treatment power is 40-60 W, the treatment time is 3-5 min, and the treatment temperature is 40-60℃.

[0032] Preferably, the soaking in the step S2 is performed under the following conditions: the solid-liquid ratio of the spandex yarn subjected to the plasma pretreatment to the soaking solution is 1:20-1:40 g / mL, the soaking temperature is 50-70℃, and the soaking time is 1-2 h.

[0033] Preferably, the yarn is 100-200D, and the high-elasticity filament is 60-80D.

[0034] Preferably, the parameters of the compressed air network device in the step S3 are set as follows: the gas source pressure is 0.4-0.8 MPa, and the network nodes are 60-100 / m.

[0035] In summary, the present application has the following beneficial effects:

[0036] 1. The light net process of the yarn and high-elasticity filament of the application first carries out blending with kapok fiber and polyamide fiber to obtain yarn; then the spandex filament pretreated by plasma is added into the soaking solution to obtain high-elasticity filament; finally, the yarn and the high-elasticity filament are wound into composite yarn after passing through the compressed air network device; and the application controls the process parameters, the steps are simple, the cost is low, and it is suitable for industrial production; the fabric spun from the composite yarn has excellent water absorption and air permeability, well relieves the "sweaty feeling", effectively improves the crossbar phenomenon, forms the unique effect of bubble wrinkles, and has broad market prospects.

[0037] 2. The raw material of the polyamide fiber of the application includes polyamide, nano medical stone powder, modified nano titanium dioxide, maleic anhydride grafted polyamide, antioxidant, and heat stabilizer; the surface of the modified nano titanium dioxide has a highly cross-linked porous network structure; the moisture absorption and air permeability of the obtained polyamide fiber is obviously improved, and the yarn with excellent hydrophilic performance is formed by blending with kapok fiber, thereby improving the hydrophilic performance of the composite yarn.

[0038] 3. The spandex filament of the application is treated by the soaking solution, and the components of the soaking solution include chitosan, tea polyphenol, organic bentonite, hydrophilic ionic liquid, γ-aminopropyl triethoxysilane, and sophorolipid; the components interact with each other, and can form a layer of hydrophilic film with compact structure on the surface of the spandex filament, which helps to improve the water absorption and air permeability of the fabric. DETAILED DESCRIPTION

[0039] The application will be further described in detail below in combination with examples.

[0040] Preparation Examples 1-5 provide the modified nano titanium dioxide and the preparation method thereof.

[0041] Preparation Example 1

[0042] The modified nano titanium dioxide includes the following raw materials: nano titanium dioxide 10 kg, N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane 4 kg, 2,4-diamino benzene sulfonic acid sodium 5 kg, glutaraldehyde 1 kg, acetic acid 0.05 kg, ethanol 50 kg, and water 4 kg.

[0043] The modified nano titanium dioxide is prepared by the following method:

[0044] Step 1) The nano titanium dioxide is added into 1 / 2 ethanol, ultrasonic dispersion for 5 min, N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane is added, stirring at a speed of 400 r / min for 0.5 h, then the temperature is raised to 60℃, and the reaction is carried out for 3 h, then filtration, washing, drying, and grinding are carried out to obtain aminated nano titanium dioxide;

[0045] Step 2) Sodium 2,4-diaminobenzenesulfonate and glutaraldehyde were added to 1 / 2 ethanol, and the mixture was refluxed under condensation at 70°C for 1 hour. Then, the amino-modified nano-titanium dioxide obtained in step 1) was added, and the mixture was stirred at a speed of 600 r / min for 20 minutes. Acetic acid was added dropwise, and the mixture was reacted for 2 hours. The mixture was filtered, washed, dried, and ground to obtain modified nano-titanium dioxide.

[0046] Preparation Example 2

[0047] The modified nano titanium dioxide comprises the following raw materials: 12 kg of nano titanium dioxide, 5 kg of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 6.5 kg of sodium 2,4-diaminobenzenesulfonate, 2 kg of glutaraldehyde, 0.08 kg of acetic acid, 70 kg of ethanol, and 5 kg of water.

[0048] Modified nano titanium dioxide is prepared by the following method:

[0049] Step 1) adding nano-titanium dioxide to 1 / 2 ethanol, ultrasonically dispersing for 8 minutes, adding N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stirring at a speed of 500 r / min for 0.75 hours, then heating to 65° C., reacting for 3.5 hours, filtering, washing, drying, and grinding to obtain amino-treated nano-titanium dioxide;

[0050] Step 2) Sodium 2,4-diaminobenzenesulfonate and glutaraldehyde were added to 1 / 2 ethanol, and the mixture was refluxed under condensation at 75°C for 1.5 hours. Then, the amino-modified nano-titanium dioxide obtained in step 1) was added, and the mixture was stirred at a speed of 700 r / min for 25 minutes. Acetic acid was added dropwise, and the mixture was reacted for 2.5 hours. The mixture was filtered, washed, dried, and ground to obtain modified nano-titanium dioxide.

[0051] Preparation Example 3

[0052] The modified nano titanium dioxide comprises the following raw materials: 15 kg of nano titanium dioxide, 6 kg of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 8 kg of sodium 2,4-diaminobenzenesulfonate, 3 kg of glutaraldehyde, 0.1 kg of acetic acid, 100 kg of ethanol, and 6 kg of water.

[0053] Modified nano titanium dioxide is prepared by the following method:

[0054] Step 1) adding nano-titanium dioxide to 1 / 2 ethanol, ultrasonically dispersing for 10 minutes, adding N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stirring at a speed of 600 r / min for 1 hour, then heating to 70° C., reacting for 5 hours, filtering, washing, drying, and grinding to obtain amino-treated nano-titanium dioxide;

[0055] Step 2) Sodium 2,4-diaminobenzenesulfonate and glutaraldehyde are added to 1 / 2 ethanol, and the mixture is refluxed under condensation at 80°C for 2 hours. Then, the amino-modified nano-titanium dioxide obtained in step 1) is added, and the mixture is stirred at a speed of 800 r / min for 30 minutes. Acetic acid is added dropwise, and the mixture is reacted for 3 hours. The mixture is filtered, washed, dried, and ground to obtain modified nano-titanium dioxide.

[0056] Preparation Example 4

[0057] The modified nano titanium dioxide comprises the following raw materials: 10 kg of nano titanium dioxide, 4 kg of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 25 kg of ethanol, and 4 kg of water.

[0058] Modified nano titanium dioxide is prepared by the following method:

[0059] Add nano-titanium dioxide to 1 / 2 ethanol, ultrasonically disperse for 5 minutes, add N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stir at a speed of 400 r / min for 0.5 hours, then heat to 60°C, react for 3 hours, filter, wash, dry, and grind to obtain amino-modified nano-titanium dioxide, which is modified nano-titanium dioxide.

[0060] Preparation Example 5

[0061] Modified nano titanium dioxide includes the following raw materials: 10 kg of nano titanium dioxide, 4 kg of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, and 5 kg of sodium 2,4-diaminobenzenesulfonate.

[0062] Modified nano titanium dioxide is prepared by the following method:

[0063] Step 1) adding nano-titanium dioxide to 1 / 2 ethanol, ultrasonically dispersing for 5 minutes, adding N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stirring at a speed of 400 r / min for 0.5 hours, then heating to 60° C., reacting for 3 hours, filtering, washing, drying, and grinding to obtain amino-treated nano-titanium dioxide;

[0064] Step 2) Sodium 2,4-diaminobenzenesulfonate and the amino-modified nano-titanium dioxide obtained in step 1) are stirred at a speed of 600 r / min for 20 minutes, filtered, washed, dried, and ground to obtain modified nano-titanium dioxide.

[0065] Preparation Examples 6-12 and Comparative Preparation Examples 1-4 provide polyamide fibers and preparation methods thereof.

[0066] Preparation Example 6

[0067] Polyamide fiber, including the following raw materials: polyamide 60kg, nano medical stone powder 4kg, modified nano titanium dioxide 6kg, maleic anhydride grafted polyamide 3kg, antioxidant 2kg, thermal stabilizer 1kg;

[0068] The modified nano-titanium dioxide is prepared according to Preparation Example 1; the antioxidant is prepared by mixing hydroxyphenylbenzotriazole and ethyl acetohydroxamate in a mass ratio of 3:1; the heat stabilizer is dibutyltin dilaurate;

[0069] Polyamide fiber, produced by the following process:

[0070] Polyamide, nano medical stone powder, modified nano titanium dioxide, maleic anhydride grafted polyamide, antioxidant, and heat stabilizer are stirred at a speed of 200 r / min for 10 minutes. After mixing evenly, they are extruded at a temperature of 220°C using a twin-screw blending extruder, and then melt-spun at a temperature of 250°C, a speed of 2000m / min, a spinneret hole number of 36, a spinning draft ratio of 1.5 times, and a drafting temperature of 90°C to obtain polyamide fiber.

[0071] Preparation Example 7

[0072] Polyamide fiber, including the following raw materials: polyamide 70kg, nano medical stone powder 7kg, modified nano titanium dioxide 8kg, maleic anhydride grafted polyamide 5kg, antioxidant 2.5kg, thermal stabilizer 1.5kg;

[0073] The modified nano-titanium dioxide is prepared according to Preparation Example 2; the antioxidant is prepared by mixing hydroxyphenylbenzotriazole and ethyl acetohydroxamate in a mass ratio of 3:2; the heat stabilizer is zinc stearate;

[0074] Polyamide fiber, produced by the following process:

[0075] Polyamide, nano medical stone powder, modified nano titanium dioxide, maleic anhydride grafted polyamide, antioxidant, and heat stabilizer are stirred at a speed of 300 r / min for 15 minutes. After being uniformly mixed, they are extruded at a temperature of 240°C using a twin-screw blending extruder, and then melt-spun at a temperature of 270°C, a speed of 3000m / min, a spinneret hole number of 100, a spinning draw ratio of 2.5 times, and a draw temperature of 110°C to obtain polyamide fiber.

[0076] Preparation Example 8

[0077] Polyamide fiber, including the following raw materials: polyamide 80kg, nano medical stone powder 9kg, modified nano titanium dioxide 10kg, maleic anhydride grafted polyamide 6kg, antioxidant 3kg, thermal stabilizer 2kg;

[0078] Among them, the modified nano-titanium dioxide is prepared by Preparation Example 3; the antioxidant is prepared by mixing hydroxyphenylbenzotriazole and ethyl acetohydroxamate in a mass ratio of 3:4; the heat stabilizer is prepared by mixing dibutyltin dilaurate and zinc stearate in a mass ratio of 1:1; and the polyamide fiber is prepared by the following method:

[0079] Polyamide, nano medical stone powder, modified nano titanium dioxide, maleic anhydride grafted polyamide, antioxidant, and heat stabilizer are stirred at a speed of 400 r / min for 20 minutes. After being uniformly mixed, they are extruded at a temperature of 260°C using a twin-screw blending extruder, and then melt-spun at a temperature of 290°C, a speed of 4000m / min, a spinneret hole number of 144, a spinning draw ratio of 3.0 times, and a draw temperature of 120°C to obtain polyamide fiber.

[0080] Preparation Example 9

[0081] Preparation Example 9 is different from Preparation Example 6 only in that the modified nano-titanium dioxide is prepared by Preparation Example 4.

[0082] Preparation Example 10

[0083] Preparation Example 10 is different from Preparation Example 6 only in that the modified nano-titanium dioxide is prepared by Preparation Example 5.

[0084] Preparation Example 11

[0085] Preparation Example 11 is different from Preparation Example 6 only in that the antioxidant is only hydroxyphenylbenzotriazole.

[0086] Preparation Example 12

[0087] Preparation Example 12 is different from Preparation Example 6 only in that the antioxidant is only ethyl acetohydroxamate.

[0088] Comparative Preparation Example 1

[0089] Compared with Preparation Example 1, the only difference from Preparation Example 6 is that the modified nano-titanium dioxide is replaced by an equal mass of nano-titanium dioxide.

[0090] Comparative Preparation Example 2

[0091] Comparative Preparation Example 2 is different from Preparation Example 6 only in that the modified nano-titanium dioxide is replaced by an equal mass of nano-medicinal stone powder.

[0092] Comparative Preparation Example 3

[0093] Comparative Preparation Example 3 is different from Preparation Example 6 only in that the same mass of modified nano-titanium dioxide is used to replace the nano-medicinal stone powder.

[0094] Comparative Preparation Example 4

[0095] Polyamide fiber, produced by the following process:

[0096] The polyamide was extruded at a temperature of 220°C using a twin-screw blending extruder, and then melt-spun at a temperature of 250°C, a speed of 2000m / min, a spinneret with 36 holes, a spinning draw ratio of 1.5 times, and a draw temperature of 90°C to obtain polyamide fiber.

[0097] Preparation Examples 13-17 and Comparative Preparation Examples 5-7 provide methods for preparing soaking solutions.

[0098] Preparation Example 13

[0099] The soaking solution is prepared by the following method:

[0100] Add 8 kg of chitosan, 2 kg of tea polyphenols, 4 kg of organic bentonite, 1 kg of hydrophilic ionic liquid, 5 kg of γ-aminopropyltriethoxysilane, and 0.6 kg of sophorolipid to 40 kg of water, and stir at 40°C and 400 r / min for 1 hour to obtain a soaking solution;

[0101] The hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium chloride in a mass ratio of 2:5.

[0102] Preparation Example 14

[0103] The soaking solution is prepared by the following method:

[0104] Add 10 kg of chitosan, 4 kg of tea polyphenols, 5 kg of organic bentonite, 2 kg of hydrophilic ionic liquid, 6 kg of γ-aminopropyltriethoxysilane, and 0.8 kg of sophorolipid to 50 kg of water, and stir at 50 ° C and 500 r / min for 1.5 hours to obtain a soaking solution;

[0105] The hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium chloride in a mass ratio of 4:5.

[0106] Preparation Example 15

[0107] The soaking solution is prepared by the following method:

[0108] Add 12 kg of chitosan, 5 kg of tea polyphenols, 6 kg of organic bentonite, 3 kg of hydrophilic ionic liquid, 8 kg of γ-aminopropyltriethoxysilane, and 1 kg of sophorolipid to 60 kg of water, and stir at 60 ° C and 600 r / min for 2 hours to obtain a soaking solution;

[0109] The hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium chloride in a mass ratio of 6:5.

[0110] Preparation Example 16

[0111] Preparation Example 16 is different from Preparation Example 13 only in that the hydrophilic ionic liquid is only 1-acetate benzyl-3-methylimidazolium salt.

[0112] Preparation Example 17

[0113] Preparation Example 17 is different from Preparation Example 13 only in that the hydrophilic ionic liquid is only 1-butyl-3-methylimidazolium chloride.

[0114] Comparative Preparation Example 5

[0115] Compared with Preparation Example 5, the only difference from Preparation Example 13 is that no hydrophilic ionic liquid is added.

[0116] Comparative Preparation Example 6

[0117] Compared with Preparation Example 6, the only difference from Preparation Example 13 is that no tea polyphenols are added.

[0118] Comparative Preparation Example 7

[0119] Comparative Preparation Example 7 is different from Preparation Example 13 only in that no organic bentonite is added.

[0120] Examples 1-9 provide a light web process with yarn and high stretch yarn.

[0121] Example 1

[0122] The light mesh process of yarn and high elastic yarn includes the following steps:

[0123] S1. Blending kapok fiber and polyamide fiber in a mass ratio of 1:3 to obtain yarn;

[0124] S2. First, the spandex yarn was plasma treated for 3 minutes under the conditions of a gas source of a mixture of oxygen and nitrogen with a volume ratio of 1:2, a frequency of 10 kHz, a power of 40 W, and a temperature of 40°C to obtain plasma-pretreated spandex yarn; then, the plasma-pretreated spandex yarn was added to an immersion solution at a solid-liquid ratio of 1:20 g / mL, immersed at 50°C for 1 hour, and then dried to obtain a high-elastic yarn;

[0125] S3, passing the 100D yarn and the 60D high-elastic yarn together through a compressed air interlacing device, controlling the air source pressure to 0.4 MPa and the interlacing nodes to 60 / m; then winding and forming to obtain a composite yarn;

[0126] Among them, the polyamide fiber is prepared by Preparation Example 6; and the soaking liquid is prepared by Preparation Example 13.

[0127] Example 2

[0128] The light mesh process of yarn and high elastic yarn includes the following steps:

[0129] S1, kapok fiber and polyamide fiber are blended in a mass ratio of 2.5:6 to obtain yarn;

[0130] S2. First, the spandex yarn was plasma treated for 4 minutes under the conditions of a gas source of a mixture of oxygen and nitrogen with a volume ratio of 1:2, a frequency of 12 kHz, a power of 50 W, and a temperature of 50°C to obtain plasma-pretreated spandex yarn; then, the plasma-pretreated spandex yarn was added to a soaking liquid at a solid-liquid ratio of 1:30 g / mL, soaked at 60°C for 1.5 hours, and then dried to obtain a high-elastic yarn;

[0131] S3, passing the 150D yarn and the 70D high-elastic yarn together through a compressed air interlacing device, controlling the air source pressure to 0.6 MPa and the interlacing nodes to 80 / m; then winding and forming to obtain a composite yarn;

[0132] Among them, the polyamide fiber is prepared by Preparation Example 7; and the soaking liquid is prepared by Preparation Example 14.

[0133] Example 3

[0134] The light mesh process of yarn and high elastic yarn includes the following steps:

[0135] S1. Blending kapok fiber and polyamide fiber in a mass ratio of 1:2 to obtain yarn;

[0136] S2. First, the spandex yarn was plasma treated for 5 minutes under the conditions of a gas source of a mixture of oxygen and nitrogen with a volume ratio of 1:2, a frequency of 14 kHz, a power of 60 W, and a temperature of 60°C to obtain plasma-pretreated spandex yarn; then, the plasma-pretreated spandex yarn was added to an immersion solution at a solid-liquid ratio of 1:40 g / mL, immersed at 70°C for 2 hours, and then dried to obtain a high-elastic yarn;

[0137] S3, passing the 200D yarn and the 80D high-elastic yarn together through a compressed air interlacing device, controlling the air source pressure to 0.8 MPa and the interlacing nodes to 100 / m; then winding and forming to obtain a composite yarn;

[0138] Among them, the polyamide fiber is prepared by Preparation Example 8; and the soaking liquid is prepared by Preparation Example 15.

[0139] Example 4

[0140] Example 4 is different from Example 1 only in that the polyamide fiber is prepared by Preparation Example 9.

[0141] Example 5

[0142] Example 5 is different from Example 1 only in that the polyamide fiber is prepared by Preparation Example 10.

[0143] Example 6

[0144] Example 6 is different from Example 1 only in that the polyamide fiber is prepared by Preparation Example 11.

[0145] Example 7

[0146] Example 7 is different from Example 1 only in that the polyamide fiber is prepared by Preparation Example 12.

[0147] Example 8

[0148] Example 8 is different from Example 1 only in that the soaking liquid is prepared by Preparation Example 16.

[0149] Example 9

[0150] Example 9 is different from Example 1 only in that the soaking liquid is prepared by Preparation Example 17.

[0151] In order to verify the performance of the light mesh process of the yarn and high elastic yarn provided by this application, the applicant set up comparative examples 1-9, in which:

[0152] Comparative Example 1

[0153] Comparative Example 1 is different from Example 1 only in that the polyamide fiber is prepared by Comparative Preparation Example 1.

[0154] Comparative Example 2

[0155] Comparative Example 2 is different from Example 1 only in that the polyamide fiber is prepared by Comparative Preparation Example 2.

[0156] Comparative Example 3

[0157] Comparative Example 3 is different from Example 1 only in that the polyamide fiber is prepared by Comparative Preparation Example 3.

[0158] Comparative Example 4

[0159] Comparative Example 4 is different from Example 1 only in that the polyamide fiber is prepared by Comparative Preparation Example 4.

[0160] Comparative Example 5

[0161] Comparative Example 5 is different from Example 1 only in that the soaking liquid is prepared by Comparative Preparation Example 5.

[0162] Comparative Example 6

[0163] Comparative Example 6 is different from Example 1 only in that the soaking liquid is prepared by Comparative Preparation Example 6.

[0164] Comparative Example 7

[0165] Comparative Example 7 is different from Example 1 only in that the soaking liquid is prepared by Comparative Preparation Example 7.

[0166] Comparative Example 8

[0167] The light mesh process of yarn and high elastic yarn includes the following steps:

[0168] S1, kapok fiber and polyamide fiber are blended in a mass ratio of 2:6 to obtain yarn;

[0169] S2. Pass the 100D yarn and the 60D spandex yarn together through a compressed air interlacing device, controlling the air source pressure to 0.4 MPa and the interlacing nodes to 60 / m; then winding and forming to obtain a composite yarn;

[0170] Among them, the polyamide fiber is prepared by Preparation Example 6.

[0171] Comparative Example 9

[0172] The light mesh process of yarn and high elastic yarn includes the following steps:

[0173] S1. Blending kapok fiber and polyamide fiber in a mass ratio of 1:3 to obtain yarn;

[0174] S2. First, the spandex yarn was plasma treated for 3 minutes under the conditions of a gas source of a mixture of oxygen and nitrogen with a volume ratio of 1:2, a frequency of 10 kHz, a power of 40 W, and a temperature of 40°C to obtain plasma-pretreated spandex yarn; then, the plasma-pretreated spandex yarn was added to an immersion solution at a solid-liquid ratio of 1:20 g / mL, immersed at 50°C for 1 hour, and then dried to obtain a high-elastic yarn;

[0175] S3. Use 60D high-elastic yarn as the core yarn and use 100D yarn for covering to form a core-spun yarn structure to obtain a composite yarn; wherein, the polyamide fiber is prepared by Preparation Example 6; and the soaking liquid is prepared by Preparation Example 13.

[0176] The main properties of the light mesh process of the yarns and high-elastic yarns in Examples 1-9 and Comparative Examples 1-9 were tested respectively, and the following result parameters were obtained, as shown in Table 1.

[0177] The composite yarns obtained in Examples 1-9 and Comparative Examples 1-9 were used to spin fabrics, the appearance of the fabrics was observed, and the water absorption was determined according to GB / T 21655.1-2008 "Evaluation of moisture management properties of textile fabrics", and the air permeability was determined according to GB / T 5453-1997 "Determination of air permeability of textile fabrics".

[0178] Table 1:

[0179]

[0180]

[0181] As shown by the data in Table 1, the composite yarns obtained in Examples 1-9 have much better comprehensive performance than the composite yarns obtained in Comparative Examples 1-9, have higher water absorption and air permeability, have excellent moisture absorption and air permeability, and the fabrics have no horizontal bar phenomenon, and the comprehensive performance of the fabrics is significantly improved, and has a broad application prospect.

[0182] As shown by Examples 1, 4, 5 and Comparative Example 1, the polyamide fiber used in Example 1 is prepared in Preparation Example 6, the modified nano-titanium dioxide is prepared in Preparation Example 1, the surface of the nano-silicon dioxide is first grafted with amino, and then connected with 2,4-diamino benzenesulfonic acid sodium through glutaraldehyde, the surface of the obtained modified nano-titanium dioxide has a porous network structure, the hydrophilic performance of the composite yarn obtained in Example 1 is greatly improved compared with Examples 4, 5 and Comparative Example 1, which shows that the porous network structure on the surface of the modified nano-titanium dioxide helps to improve the hydrophilic performance of the polyamide fiber.

[0183] As shown by Examples 1, 6 and 7, the polyamide fiber used in Example 1 is prepared in Preparation Example 6, the antioxidant is obtained by mixing hydroxyphenyl benzotriazole and acetyl hydroxamic acid ethyl ester, the performance of the composite yarn obtained in Example 1 is better than that of Examples 6 and 7, which shows that hydroxyphenyl benzotriazole and acetyl hydroxamic acid ethyl ester synergistically improve the hydrophilicity of the polyamide fiber.

[0184] As shown by Example 1 and Comparative Examples 2 and 3, the polyamide fiber used in Example 1 is prepared in Preparation Example 6, and the raw materials include nano-pitchstone powder and modified nano-titanium dioxide, the water absorption and air permeability of the fabric obtained from the composite yarn of Example 1 are higher than those of Comparative Examples 2 and 3, which shows that the nano-pitchstone powder and the modified nano-titanium dioxide promote each other and together improve the moisture absorption and air permeability of the polyamide fiber.

[0185] As shown by Example 1 and Comparative Example 4, the polyamide fiber used in Example 1 is prepared in Preparation Example 6, and the polyamide fiber used in Comparative Example 4 is only obtained by melt spinning of polyamide, and the moisture absorption and air permeability of the composite yarn obtained in Example 1 is greatly improved.

[0186] From Example 1 and Examples 8, 9, it can be seen that the soaking solution used in Example 1 is prepared from Preparation Example 13, in which the hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium chloride. Compared with Examples 8, 9, the water absorption and air permeability of the composite yarn obtained in Example 1 are superior to those of Examples 8, 9, indicating that 1-benzyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium chloride can jointly act on the spandex filaments, thereby improving the hydrophilic properties of the spandex filaments.

[0187] From Example 1 and Comparative Examples 5-7, it can be seen that the soaking solution used in Example 1 is prepared from Preparation Example 13, and the raw materials include tea polyphenols, organic bentonite, and hydrophilic ionic liquid. Compared with Comparative Examples 5-7, the water absorption and air permeability of the composite yarn obtained in Example 1 are improved, indicating that tea polyphenols, organic bentonite, and hydrophilic ionic liquid interact with each other, which helps to improve the hydrophilic properties of the spandex filaments.

[0188] From Example 1 and Comparative Example 8, it can be seen that the soaking solution used in Example 1 is prepared from Preparation Example 13. Compared with the spandex filaments not treated with the soaking solution of Comparative Example 8, the performance of the composite yarn obtained in Example 1 is more excellent.

[0189] From Example 1 and Comparative Example 9, it can be seen that Example 1 adopts the air network process, in which the yarn is used as the wrapping filament and is interlaced with the high-elasticity filament. Compared with Comparative Example 9 which adopts the core-spun yarn, the fabric obtained from the composite yarn of Example 1 does not have the phenomenon of horizontal bars and has better performance.

[0190] The specific embodiments are merely illustrative of the present application, and are not intended to limit the present application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, and the modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. The light mesh process of yarn and high elastic yarn is characterized by: The following steps are involved: S1, blending kapok fiber and polyamide fiber to obtain yarn; S2, adding the plasma-pretreated spandex yarn into the soaking solution for treatment to obtain a high-elastic yarn; S3, passing the yarn obtained in step S1 and the high elastic yarn obtained in step S2 together through a compressed air interlacing device, and then winding them to obtain a composite yarn; The polyamide fiber comprises the following raw materials in parts by weight: 60-80 parts of polyamide, 4-9 parts of nano medical stone powder, 6-10 parts of modified nano titanium dioxide, 3-6 parts of maleic anhydride grafted polyamide, 2-3 parts of antioxidant, and 1-2 parts of heat stabilizer; The modified nano-titanium dioxide comprises the following raw materials in parts by weight: 10-15 parts of nano-titanium dioxide, 4-6 parts of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 5-8 parts of sodium 2,4-diaminobenzenesulfonate, 1-3 parts of glutaraldehyde, 0.05-0.1 parts of acetic acid, 50-100 parts of ethanol, and 4-6 parts of water; The soaking liquid is prepared by the following method: By weight, add 8-12 parts of chitosan, 2-5 parts of tea polyphenols, 4-6 parts of organic bentonite, 1-3 parts of hydrophilic ionic liquid, 5-8 parts of γ-aminopropyltriethoxysilane, and 0.6-1 part of sophorolipid to 40-60 parts of water, stir evenly, and obtain a soaking solution; The hydrophilic ionic liquid is obtained by mixing 1-benzyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium chloride in a mass ratio of 2-6:

5.

2. The light mesh process of yarn and high elastic yarn according to claim 1, characterized in that The modified nano titanium dioxide is prepared by the following method: Step 1) Ultrasonic dispersion of nano-titanium dioxide in 1 / 2 ethanol, addition of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stirring evenly, heating to 60-70°C, reacting for 3-5 hours, filtering, washing, drying, and grinding to obtain amino-treated nano-titanium dioxide; Step 2) Sodium 2,4-diaminobenzenesulfonate and glutaraldehyde are added to 1 / 2 ethanol, and the mixture is refluxed under condensation at 70-80°C for 1-2 hours. The amino-modified nano-titanium dioxide obtained in step 1) is then added, stirred evenly, and acetic acid is added dropwise. The mixture is reacted for 2-3 hours, filtered, washed, dried, and ground to obtain modified nano-titanium dioxide.

3. The light mesh process of yarn and high elastic yarn according to claim 2 is characterized in that: The polyamide fiber is prepared by the following method: Polyamide, nano medical stone powder, modified nano titanium dioxide, maleic anhydride grafted polyamide, antioxidant and heat stabilizer are uniformly mixed, extruded through a twin-screw blending extruder and then melt-spun to obtain polyamide fiber.

4. The light mesh process of yarn and high elastic yarn according to claim 1, characterized in that: In step S1, the mass ratio of kapok fiber to polyamide fiber is 2-3:

6.

5. The light mesh process of yarn and high elastic yarn according to claim 1, characterized in that: The soaking conditions in step S2 are as follows: the solid-liquid ratio of the plasma-pretreated spandex yarn to the soaking liquid is 1:20-1:40 g / mL, the soaking temperature is 50-70° C., and the soaking time is 1-2 hours.

6. The light mesh process of yarn and high elastic yarn according to claim 1, characterized in that: The parameters of the compressed air network device in step S3 are set as follows: the air source pressure is 0.4-0.8 MPa, and the network nodes are 60-100 / m.

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