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CN-121992523-A - Nylon-simulated hand feeling polyester fiber and preparation method thereof, and fabric and preparation method thereof

CN121992523ACN 121992523 ACN121992523 ACN 121992523ACN-121992523-A

Abstract

The invention provides nylon-imitated polyester fiber and a preparation method thereof, and a fabric and a preparation method thereof, and belongs to the technical field of textile fabrics. The preparation method of the polyester fiber comprises the steps of blending a polyester master batch body with polyester resin according to a proportion, and then carrying out melt spinning, wherein the polyester master batch body is prepared by blending polyester resin, a dispersing agent, sodium polyacrylate and nano inorganic powder. The preparation method of the fabric comprises the steps of preparing polyester fibers by the method, weaving, dyeing and finishing to obtain the cool quick-drying antibacterial polyester nylon-like hand fabric. The core of the invention realizes the synergistic integration and high-efficiency exertion of four core functions of cool feel, quick drying, bacteriostasis and nylon-imitated hand feeling of polyester fiber and fabric through accurate raw material proportion, key parameter limitation and innovative process design, and effectively solves the technical problems of single function, poor hand feeling, insufficient function durability, poor production stability and the like of the traditional polyester material.

Inventors

  • SHEN FEI
  • SHI WENJUN
  • GUO HONG
  • HUANG XUESONG
  • He Zhige
  • Zhou Depin

Assignees

  • 苏州梵丝新材料科技有限公司

Dates

Publication Date
20260508
Application Date
20260311

Claims (10)

  1. 1. A preparation method of cool feeling quick-drying antibacterial nylon-imitated polyester fiber is characterized in that the cool feeling quick-drying antibacterial nylon-imitated polyester fiber is obtained by blending a polyester master batch body with polyester resin according to a proportion and then carrying out melt spinning; Wherein the weight percentage sum is 100%, the raw materials are 3.5-10% of the polyester master batch body, and 90-96.5% of the polyester resin; The polyester master batch body is prepared by blending, by weight, 63-79% of polyester resin, 1-2% of a dispersing agent, 5-10% of sodium polyacrylate and 15-25% of nano inorganic powder, wherein the sum of the weight percentages is 100%; The intrinsic viscosity of the polyester resin is 0.60-0.68 dL/g; The number average molecular weight of the sodium polyacrylate is 5000-20000 Da, and the solid content is more than or equal to 98%.
  2. 2. The method for preparing the cool feeling quick-drying antibacterial nylon-imitated polyester fiber according to claim 1, wherein the dispersing agent is at least one of polyethylene wax, zinc stearate, calcium stearate, ethylene bis stearamide and polyvinylpyrrolidone.
  3. 3. The preparation method of the cool feeling quick-drying antibacterial nylon-simulated handfeel polyester fiber according to claim 1, wherein the nano inorganic powder is at least one of nano aluminum oxide, nano aluminum nitride, nano boron nitride, nano silicon dioxide, nano zinc oxide, nano magnesium oxide, nano boehmite, nano titanium dioxide, nano silver-loaded silicon dioxide, nano silver-loaded zeolite, nano silver-loaded aluminum oxide, nano silver-loaded diatomite, nano silver-loaded montmorillonite and silver-loaded sepiolite, and the particle size is 50 nm-5 mu m, and the silver content of the nano silver-loaded silicon dioxide, the nano silver-loaded zeolite, the nano silver-loaded aluminum oxide, the nano silver-loaded diatomite, the nano silver-loaded montmorillonite or the silver-loaded sepiolite is 0.1-3%.
  4. 4. The preparation method of the cool feeling quick-drying antibacterial nylon-imitated polyester fiber according to claim 1, which is characterized in that the polyester master batch body and the polyester resin are blended by adopting a single screw extruder, the blending time is controlled to be 5-25 min, the screw rotating speed is controlled to be 20-80 r/min, and the blending temperature is controlled to be 250-295 ℃; And/or the polyester master batch body is proportionally put into a low-speed mixer at the rotating speed of 50-150 r/min for 20-35 min under nitrogen protection, and is uniformly mixed and granulated by adopting a double-screw extruder, the mixing temperature is controlled to be 230-280 ℃, the rotating speed of the screw is controlled to be 80-150 r/min, the metering section of the extruder of the double-screw extruder needs vacuumizing, and the vacuum degree is-0.08 to-0.1 Mpa.
  5. 5. The preparation method of the cool quick-drying antibacterial nylon-like hand feeling polyester fiber according to claim 1 is characterized in that the process parameters of melt spinning are that the spinning temperature is 270-290 ℃, the aperture of a spinneret plate is 0.15-0.45 mm, the rotating speed of a metering pump is 10-25 r/min, the cooling air temperature is 20-30 ℃, the cooling air speed is 0.8-1.5 m/s, the first drafting speed is 1800-1850 m/min, the temperature is 80-85 ℃, the second drafting speed is 4000-4030 m/min, the temperature is 120-125 ℃, and the winding speed is 4000-5000 m/min.
  6. 6. The preparation method of the cool feeling quick-drying antibacterial nylon-like polyester fiber according to any one of claims 1-4, which is characterized in that the polyester master batch body comprises, by weight, 76-79% of polyester resin, 1-2% of dispersing agent, 5-6% of sodium polyacrylate and 15-18% of nano inorganic powder, wherein the sum of the weight percentages is 100%; Or the polyester master batch body comprises 73-76% of polyester resin, 1-2% of dispersing agent, 6-7% of sodium polyacrylate and 16-20% of nano inorganic powder by weight percent; or the polyester master batch body comprises, by weight, 69-72% of polyester resin, 1-2% of dispersing agent, 8-9% of sodium polyacrylate and 17-22% of nano inorganic powder, wherein the sum of the weight percentages is 100%; Or the polyester master batch body comprises, by weight, 63-66% of polyester resin, 1-2% of dispersing agent, 9-10% of sodium polyacrylate and 22-25% of nano inorganic powder, wherein the sum of the weight percentages is 100%.
  7. 7. The preparation method of the cool feeling quick-drying antibacterial nylon-like polyester fiber according to any one of claims 1-4, which is characterized in that the polyester master batch body comprises 73-77% of polyester resin, 1-2% of dispersing agent, 5-7% of sodium polyacrylate and 16-21% of nano inorganic powder, wherein the sodium polyacrylate is compounded by sodium polyacrylate with a number average molecular weight of 5000-800 Da and sodium polyacrylate with a number average molecular weight of 12000-15000 Da according to a mass ratio of 1:1-1:2, wherein the sum of the weight percentages is 100%; or the total weight percentage is 100%, the polyester master batch body comprises 69-73% of polyester resin, 1-2% of dispersing agent, 7-9% of sodium polyacrylate and 18-22% of nano inorganic powder, wherein the sodium polyacrylate is compounded by sodium polyacrylate with the number average molecular weight of 5000-8000 Da and sodium polyacrylate with the number average molecular weight of 18000-20000 Da according to the mass ratio of 1:2-1:3; or the total weight percentage is 100%, the polyester master batch body comprises 63-69% of polyester resin, 1-2% of dispersing agent, 8-10% of sodium polyacrylate and 20-25% of nano inorganic powder, wherein the sodium polyacrylate is compounded by sodium polyacrylate with the number average molecular weight of 5000-8000 Da, 12000-15000 Da and 18000-20000 Da according to the mass ratio of 1:1:1-1:2:2.
  8. 8. The cool feeling quick-drying antibacterial nylon-simulated handfeel polyester fiber prepared by the preparation method of any one of claims 1-7.
  9. 9. The preparation method of the cool feeling quick-drying antibacterial polyester nylon-imitated hand feeling fabric is characterized by firstly adopting the cool feeling quick-drying antibacterial nylon-imitated hand feeling polyester fiber prepared by the preparation method of the cool feeling quick-drying antibacterial nylon-imitated hand feeling polyester fiber according to any one of claims 1-7, then knitting the cool feeling quick-drying antibacterial nylon-imitated hand feeling polyester fiber by using a knitting machine, and dyeing and finishing to obtain the cool feeling quick-drying antibacterial polyester nylon-imitated hand feeling fabric.
  10. 10. The cool feeling quick-drying antibacterial polyester nylon-imitated fabric prepared by the preparation method of the cool feeling quick-drying antibacterial polyester nylon-imitated fabric according to claim 9.

Description

Nylon-simulated hand feeling polyester fiber and preparation method thereof, and fabric and preparation method thereof Technical Field The invention relates to the technical field of textile fabrics, in particular to nylon-imitated polyester fiber and a preparation method thereof, and a fabric and a preparation method thereof. Background Polyester (polyester fiber) is widely used due to high strength, good wear resistance and good wrinkle resistance, but the traditional polyester fabric lacks the soft and fine characteristics of nylon (nylon fiber), has low thermal conductivity, is stuffy when worn, and influences wearing experience. Therefore, the antibacterial and hygroscopic researches of terylene become industrial research hot spots. In the prior art, the surface treatment is usually improved by adding a softener or a cool bacteriostasis auxiliary agent. For example, china patent application (name: surface treatment Process of polyester industrial yarn fabric; publication No. CN 106758137A; publication No. 20170531) discloses a surface treatment process of polyester industrial yarn fabric, which comprises the following steps of 1, placing the polyester industrial yarn fabric in a water bath at 100 ℃ for treatment for 1h, placing the treated polyester industrial yarn fabric in a constant-temperature drying oven, drying for 10min, 2, placing the dried polyester industrial yarn fabric in an alkali solvent mixed solution, treating for 50-20 min in a bath ratio of 1:80 according to the thickness of the industrial yarn fabric at 35-70 ℃, and 3, placing the alkali solvent mixed solution in boiling water at 100 ℃ for cleaning after the alkali solvent mixed solution is treated, and improving the moisture absorption performance of the polyester industrial yarn fabric by the treatment industry, so that the product is not easy to generate electrostatic reaction, the product is not easy to pill, and the quality of the product is also improved. However, the polyester fabrics are usually washed (including hand washing or machine washing) after being used, so that the treatment effect of the softener or the cool antibacterial auxiliary surface treatment and other means is gradually lost. Disclosure of Invention The invention provides a nylon-like hand feeling polyester fiber and a preparation method thereof, a fabric and a preparation method thereof, and a full-chain technical system from polyester master batch preparation, fiber spinning to fabric molding is constructed through synergistic cooperation, so as to solve the problem that the effects of polyester fabrics such as improved hand feeling, hygroscopicity and the like are not durable. The core realizes the synergistic integration and high-efficiency exertion of four core functions of cool feeling, quick drying, bacteriostasis and nylon-like hand feeling of polyester fibers and fabrics through accurate raw material proportioning, key parameter definition and innovative process design, effectively solves the technical pain points of single function, poor hand feeling, insufficient function durability, poor production stability and the like of the traditional polyester materials, ensures the consistency of the product batch-to-batch performance, realizes the customized regulation and control of the functions, widens the application scene of the products, and finally forms the industrial technical scheme of the cool feeling quick drying bacteriostasis nylon-like hand feeling polyester fibers and fabrics with high performance, high stability and high practicability, remarkably improves the comprehensive performance and market competitiveness of the products, and has wide application prospect and industrialization value. The technical scheme adopted by the invention is as follows: A preparation method of cool quick-drying antibacterial nylon-like polyester fiber comprises the steps of blending polyester master batch bodies with polyester resin according to a proportion, and carrying out melt spinning; Wherein the weight percentage sum is 100%, the raw materials are 3.5-10% of the polyester master batch body, and 90-96.5% of the polyester resin; The polyester master batch body is prepared by blending, by weight, 63-79% of polyester resin, 1-2% of a dispersing agent, 5-10% of sodium polyacrylate and 15-25% of nano inorganic powder, wherein the sum of the weight percentages is 100%; The intrinsic viscosity of the polyester resin is 0.60-0.68 dL/g; The number average molecular weight of the sodium polyacrylate is 5000-20000 Da, and the solid content is more than or equal to 98%. The beneficial effects of the invention are as follows: The invention provides a preparation method of a cool feeling quick-drying antibacterial nylon-simulated handfeel polyester fiber, which is characterized in that a specific weight percentage ratio and a matched number average molecular weight range of a polyester master batch body and polyester resin are creatively limited, and meanwhile, the