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CN-121976358-A - Antistatic polyester cashmere-like fabric and preparation method thereof

CN121976358ACN 121976358 ACN121976358 ACN 121976358ACN-121976358-A

Abstract

The invention relates to the technical field of cashmere-like fabrics, and discloses an antistatic polyester cashmere-like fabric and a preparation method thereof. The cashmere-like fabric comprises, by weight, 70-80 parts of polyester chips, 4-6 parts of modified antistatic agents, 3-8 parts of modified ultraviolet-resistant agents, 0.5-1.5 parts of antioxidants, and 60-80% of polyester fibers, 10-25% of nylon fibers and 10-15% of viscose fibers. The modified antistatic agent provided by the invention has the advantages that the high-efficiency and durable antistatic performance is provided for the fabric, the surface resistance of the fabric is effectively reduced, the modified ultraviolet resistant agent can resist the corrosion of ultraviolet rays to polyester fibers, the aging reactions such as degradation, embrittlement and the like of fiber molecular chains caused by the ultraviolet rays are blocked, and the service life of the fabric is prolonged.

Inventors

  • TANG HUALIANG
  • YU LU
  • HUI LINTAO

Assignees

  • 浙江红绿蓝纺织印染有限公司

Dates

Publication Date
20260505
Application Date
20260126

Claims (10)

  1. 1. The antistatic polyester cashmere-like fabric is characterized by comprising, by weight, 70-80 parts of polyester chips, 4-6 parts of modified antistatic agents, 3-8 parts of modified ultraviolet-resistant agents and 0.5-1.5 parts of antioxidants; the weight percentage of the polyester fiber, the nylon fiber and the viscose fiber is 60-80 percent, 10-25 percent and 10-15 percent; the modified antistatic agent is prepared by the following steps: step A1, adding zinc oxide into absolute ethyl alcohol, carrying out ultrasonic treatment for 30min, adding KH-550, stirring in an oil bath at 80 ℃ for reaction for 12h, and centrifuging, washing and drying after the reaction is finished to obtain an intermediate product 1; And A2, adding the intermediate product 1 and hexadecyl trimethyl ammonium bromide into toluene, carrying out ultrasonic treatment for 5min, adding aniline and 3-sodium aminobenzene sulfonate, carrying out ultrasonic treatment for 5min, adding ammonium persulfate solution, stirring for 5min, standing for reaction for 24h, adding methanol to stop the reaction, washing, carrying out suction filtration, and drying to obtain the modified antistatic agent.
  2. 2. The antistatic polyester cashmere-like fabric according to claim 1, wherein the dosage ratio of zinc oxide, absolute ethyl alcohol and KH-550 in the step A1 is 6g:300-400mL:0.02-0.04mol.
  3. 3. The antistatic polyester cashmere-like fabric according to claim 1, wherein the amount ratio of the intermediate 1, cetyltrimethylammonium bromide, toluene, aniline, sodium 3-aminobenzenesulfonate, ammonium persulfate solution and methanol in the step A2 is 0.2 g/0.01-0.02 mol/100 ml/0.015-0.03 mol/40-60 ml/100 ml.
  4. 4. The antistatic polyester cashmere-like fabric according to claim 1, wherein the ammonium persulfate solution in the step A2 is formed by mixing ammonium persulfate and deionized water according to the dosage ratio of 0.03-0.04mol:40-60 mL.
  5. 5. The antistatic polyester cashmere-like fabric according to claim 1, wherein the modified ultraviolet-resistant agent is prepared by the steps of: Step B1, mixing 9-anthracene methanol, epichlorohydrin and butanone, adding sodium hydroxide and tetramethyl ammonium bromide, reacting for 7 hours in an oil bath at 60 ℃, and centrifuging, extracting, distilling and recrystallizing after the reaction is finished to obtain anthracene methyl glycidyl ether; step B2, mixing anthracene methyl glycidyl ether and 2-aminobenzimidazole, adding p-toluenesulfonic acid and toluene, carrying out reflux reaction for 4 hours at 120 ℃, and carrying out suction filtration and vacuum drying after the reaction is finished to obtain anthracene benzimidazole; Step B3, mixing nano titanium dioxide with toluene, performing ultrasonic dispersion for 30min, adding KH-560 and triethylamine, stirring at 50 ℃ under the protection of nitrogen for reaction for 24h, cooling to room temperature, washing, and performing vacuum drying to obtain modified titanium dioxide; And B4, mixing the anthryl benzimidazole, the modified titanium dioxide obtained in the step B3 and N-methylpyrrolidone, carrying out ultrasonic treatment for 10min, heating to 90 ℃, adding tetramethyl ammonium bromide, continuously heating to 100 ℃, reacting for 6h, and washing, separating and distilling under reduced pressure after the reaction is finished to obtain the modified anti-ultraviolet agent.
  6. 6. The antistatic polyester cashmere-like fabric according to claim 5, wherein the dosage ratio of 9-anthracene methanol, epichlorohydrin, butanone, sodium hydroxide and tetramethyl ammonium bromide in the step B1 is 0.8-1mol:8-10mol:4-5mol:2-2.5mol:0.01-0.015mol.
  7. 7. The antistatic polyester cashmere-like fabric according to claim 5, wherein the dosage ratio of anthracene methyl glycidyl ether, 2-amino benzimidazole, p-toluenesulfonic acid and toluene in the step B2 is 0.6-0.8mol:0.6-0.8mol:0.02-0.03mol:250-300mL.
  8. 8. The antistatic polyester cashmere-like fabric according to claim 5, wherein the dosage ratio of nano titanium dioxide, toluene, KH-560 and triethylamine in the step B3 is 10g:400-500mL:10-30mmol:1-3mL.
  9. 9. The antistatic polyester cashmere-like fabric according to claim 5, wherein the dosage ratio of anthracenyl benzimidazole in step B4, KH-560 in step B3, N-methylpyrrolidone and tetramethylammonium bromide is 1.25-3.75 mmol/10-30 mmol/150-250 mL/0.02-0.04 mmol.
  10. 10. A method for preparing the antistatic polyester cashmere-like fabric according to any one of claims 1 to 9, characterized in that the antistatic polyester cashmere-like fabric is prepared by the following steps: Step S1, weighing raw materials according to a polyester fiber formula, adding a polyester chip, a modified antistatic agent, a modified ultraviolet resistant agent and an antioxidant 1010 into a stirrer, mechanically stirring for 30-50min, then entering a double-screw extruder through a feeding port, controlling the temperature of each region to be 260-270 ℃, 270-280 ℃ in two regions, 280-290 ℃ in three regions, 290-300 ℃ in four regions and 290-300 ℃ in five regions, setting the screw rotating speed to 120-150rpm, and carrying out melt extrusion and granulating to obtain a mixture; S2, placing the mixture into a melt spinning machine, controlling the spinning temperature to be 270-280 ℃, controlling the screw rotating speed to be 400-500r/min and the winding speed to be 400-800m/min, carrying out melt spinning, and carrying out drawing and winding procedures to obtain polyester fibers; And S3, weighing the polyester fiber, the nylon fiber and the viscose fiber according to the weight percentage, spinning, weaving, dyeing and shaping, needling, napping and shaping to obtain the antistatic polyester cashmere-like fabric, wherein the needling comprises five needling processes, each needling process comprises three groups of needles, the three groups of needles are sequentially arranged along the cloth feeding direction, the three groups of needles are arranged in a staggered manner along the direction perpendicular to the cloth feeding direction, and the three groups of needles are different in number.

Description

Antistatic polyester cashmere-like fabric and preparation method thereof Technical Field The invention relates to the technical field of cashmere-like fabrics, in particular to an antistatic polyester cashmere-like fabric and a preparation method thereof. Background The cashmere is natural fine fluff growing below the goat epidermis layer and at the root of coarse wool, and only resists low-temperature growth in severe cold seasons, and belongs to rare special animal fibers. The fabric has the unique advantages of softness, skin friendliness, warmth retention, ventilation, luster and warmth, and simultaneously has good elasticity and drapability, and is a core raw material of high-end textile fabrics. However, the yield of cashmere is extremely limited, so that the price of the cashmere fabric is high, the demand of a few high-end consumer groups can be met, and the popularization of the cashmere fabric is difficult to realize. In order to make up for the short boards with scarce cashmere resources and high price, the research and development and application of the cashmere-like fabric become important development directions of the textile industry. At present, the cashmere-like fabric on the market is mainly prepared from acrylic fibers, polyester fibers, chinlon and other substitute fibers, and the polyester fibers gradually become high-quality candidate raw materials of the cashmere-like fabric due to the advantages of high strength, excellent wear resistance, good elastic recovery, strong chemical stability and controllable production cost. Compared with the traditional substitute fiber, the polyester fiber has stronger processing adaptability, the fineness and the shape of the fiber can be regulated and controlled through a spinning process, and the fine structure and the fluffy hand feeling of cashmere can be simulated. However, the polyester fiber is hydrophobic, surface charges are difficult to dissipate, so that the prepared cashmere-like fabric is easy to generate static accumulation, dust and hair are easy to adsorb when the cashmere-like fabric is worn, electric shock discomfort is likely to be generated when the cashmere-like fabric is rubbed with skin, and wearing experience is seriously affected. The patent with the application number 202410983429.0 discloses a flame-retardant antistatic composite modified polyester fiber and a preparation method thereof, wherein hyperbranched polyester is used as an antistatic functional agent to form a continuous conductive network in the polyester fiber, so that an antistatic effect is given to the polyester fiber, but the carbon nanotube is black and cannot be used for preparing light-colored fibers, and the antistatic function is single, belongs to permanent conduction, and does not have a moisture absorption antistatic function. Patent application number 201110276882.0 discloses a preparation method of polyester fiber with ultraviolet resistance and anti-pilling composite function, and a plurality of ultraviolet absorbers and light stabilizers are mixed to prepare the composite ultraviolet resistance agent, but physical mixing is free from chemical bond constraint, is easy to be incompatible with each component and phase-separated and separated out, and the complex synergistic effect is difficult to stabilize in practical application. Disclosure of Invention In order to solve the technical problems, the invention provides an antistatic polyester cashmere-like fabric and a preparation method thereof. The aim of the invention can be achieved by the following technical scheme: The antistatic polyester cashmere-like fabric consists of 70-80 parts by weight of polyester chips, 4-6 parts by weight of modified antistatic agent, 3-8 parts by weight of modified ultraviolet resistant agent and 0.5-1.5 parts by weight of antioxidant 1010; the weight percentage of the polyester fiber, the nylon fiber and the viscose fiber is 60-80 percent, 10-25 percent and 10-15 percent; the modified antistatic agent is prepared by the following steps: Step A1, adding zinc oxide into absolute ethyl alcohol, carrying out ultrasonic treatment for 30min, adding KH-550 (3-aminopropyl triethoxysilane), stirring in an 80 ℃ oil bath kettle for reaction for 12h, centrifuging, washing and drying after the reaction is finished to obtain an intermediate product 1; further, the dosage ratio of zinc oxide, absolute ethyl alcohol and KH-550 is 6g:300-400mL:0.02-0.04mol; in the step A1, zinc oxide and KH-550 are subjected to grafting reaction, amino groups are introduced into the system, reaction conditions are provided for subsequent polymerization reaction, zinc oxide is an n-type semiconductor, certain conductivity can be given to the material, a tiny conductive network can be formed in the fiber, a leakage path is provided for static charge, and in addition, zinc oxide has certain ultraviolet shielding performance. ‌ A Step A2, adding the intermediate product 1 and hexadecyl trimethyl ammoni