| abstract |
The invention discloses a method for improving the color fastness of polyester fiber, and the polyester fiber treated by the method has higher dye-loading amount when the dyeing time is 2min, 5min and 10min, the dyeing efficiency is high, and the color fastness level is higher. The polyester fiber is subjected to activation treatment, ionization treatment and treatment liquid treatment, and the effects can be exerted synergistically, so that the dyeing property of the polyester fiber is improved. The polyester fiber is activated by using lithium chloride, ammonia water and triptolide, so that the activity of the polyester fiber can be improved, the porosity of the polyester fiber can be improved, and the dye amount and the staining fastness of the polyester fiber can be improved; then, the polyester fiber is ionized, so that the active ingredients such as lithium chloride can be accelerated to enter the polyester fiber, the activity of the polyester fiber is promoted to be improved, and the dyeing performance of the polyester fiber is improved. |