| abstract |
The invention relates to a dyeing method for nylon/spandex blended fabrics. The method includes: pre-treating the nylon/spandex blended fabric; then dyeing in the same bath, adding acid dyes, leveling agents and acetic acid during the dyeing process, adjusting pH, heating up for heat preservation and dyeing, adding disperse dyes, dispersants and ammonium sulfate after cooling down, Adjust pH, heat up and keep warm for dyeing, cool down, wash with water; fix the color again. The method utilizes acid dyes and disperse dyes for one-bath and two-step dyeing, the process is simple, and the conventional dyeing equipment can be used for large-scale production. |