1. Replace the traditional acidic leveling agent by adding ammonium sulphate or glacial acetic acid for full speed coloring process, only need to add leveling agent to achieve leveling effect.
2. Heat up to dyeing temperature at 2℃ per minute and keep the holding temperature, greatly shorten the dyeing time and simplify the process.
3. Excellent performance in helping dyestuff to dissolve and disperse, good leveling performance.