The invention discloses a
nylon wool top
dyeing process capable of improving nylon
spinning operation conditions. The
nylon wool top
dyeing process comprises the following steps: step one,
wool top
dyeing: loading
nylon wool balls into a dye vat, adding a
penetration enhancer,
acetic acid and a leveling agent at
room temperature, operating for 10 minutes, then adding a dye, and operating for 10 minutes, then raising the temperature to 98 DEG C at the speed of 0.5-1 DEG C / min, keeping the temperature for 30-60 minutes, reducing the temperature to 80 DEG C, and draining water; step two, soaping:adding a soaping agent at
room temperature, operating for 10 minutes, raising the temperature to 60 DEG C, keeping the temperature for 30 minutes, and draining water; and step three, color fixing: adding a color fixing agent and
acetic acid at
room temperature, operating for 10 minutes, raising the temperature to 70 DEG C, keeping the temperature for 20 minutes, and draining water. The nylon fibers are subjected to color fixing treatment, so that various wet treatment fastnesses such as friction,
water washing and sweat
stain of the nylon fibers are improved; and meanwhile, through a reasonable high-temperature
pickling process, the adhesion effect of the nylon fibers is improved, the operation condition during nylon blended
spinning is improved, and the production efficiency is improved.