Method for preparing antibacterial fiber
An antibacterial fiber and fiber technology, applied in animal fiber, fiber treatment, plant fiber, etc., can solve the problems of low equipment requirements, low energy consumption, etc., and achieve the effect of improving hydrophilicity
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Embodiment 1
[0033] Wool fibers (purchased from Fabric City, Shanxi Road, Nanjing) were immersed in a solution of sodium alginate, the concentration of the solution was 12% owf, the pH of the solution was 7.0, the concentration of NaCl in the solution was 1.2g / L, and the temperature was 40 ℃, the bath ratio is 1:50, the immersion time is 2h, washed with water, and dried at 50°C; the wool fiber that has adsorbed sodium alginate is immersed in the ε-PL solution, the concentration of the solution is 12% owf, and NaOH is added to adjust the solution The pH is 8.0, the concentration of NaCl in the solution is 1.2g / L, the temperature is 50°C, the bath ratio is 1:50, the soaking time is 2h, washed with water, and dried at 50°C. The final result: the amount of ε-PL adsorbed on the surface of 1g wool fiber was 25.1mg, the bacteriostatic rate against Escherichia coli was 96.978%, and the bacteriostatic rate against Micrococcus luteus was 97.927%. At the same time, the interface contact angle formed ...
Embodiment 2
[0035] Wool fiber (purchased from Shanxi Road Fabric City, Nanjing City) was immersed in a solution of sodium alginate, the concentration of the solution was 4% owf, adding acetic acid to adjust the pH of the solution was 3, and the concentration of KCl in the solution was 0.5g / L. The temperature is 40°C, the bath ratio is 1:40, the immersion time is 2h, washed with water, and dried at 50°C; the wool fiber that has adsorbed sodium alginate is soaked in the ε-PL solution, the concentration of the solution is 8% owf, adding Adjust the pH of the solution to 3 with acetic acid, the concentration of KCl in the solution is 0.5g / L, the temperature is 50°C, the bath ratio is 1:30, the soaking time is 2h, washed with water, and dried at 50°C. The amount of ε-PL adsorbed on the surface of 1g wool fiber was 16.2mg, and the bacteriostatic rate against Escherichia coli was 96.937%, and the bacteriostatic rate against Micrococcus luteus was 97.912%. Repeat the above steps 10 times. The fin...
Embodiment 3
[0037]Cotton fibers (purchased from Fabric City, Shanxi Road, Nanjing) were immersed in the ε-PL solution, the concentration of the solution was 12% owf, adding NaOH to adjust the pH of the solution to be 10, the temperature was 80°C, and the bath ratio was 1:50. The immersion time is 2 hours, washed with water, and dried at 50°C; soak the cotton fiber that has absorbed ε-PL in a solution of sodium alginate, the concentration of the solution is 12% owf, add NaOH to adjust the pH of the solution to 10, and the temperature is 80°C , the bath ratio is 1:50, the soaking time is 2h, washed with water, and dried at 50°C. Repeat the above steps 3 times. The final result: the amount of ε-PL adsorbed on the surface of 1g cotton fiber was 9.4mg, the antibacterial rate against Escherichia coli was 96.929%, and the antibacterial rate against Micrococcus luteus was 97.897%.
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