Effect of atmospheric pressure plasma treatment on property of nylon 6 fibers

As to property improvement of fibers treated by plasma,the microscope was used to analyze dye diffusion in the fiber cross-section,and the effect of atmospheric pressure plasma jet treatment on nylon 6 fiber dyeability was investigated.The plasma treatments resulted in an average of 10°～20° decrease in the advancing contact angle and 20°～30° decrease in the receding contact angle measured by DCA322 tester.An increased dye diffusion rate of nylon 6 fibers was observed using optical microscope,fluorescent microscope and laser scanning confocal microscopy(LSCM),thus the improvement of wettability and dyeability of the fiber was confirmed.Scanning electron microscopy and X-ray photoelectron spectroscopic analysis showed that the fiber surfaces were roughened and the polar groups on the fiber surfaces increased after plasma treatments,facilitating the improvement of wettability and dyeability of the fiber.