Easy cationic dyeable polyester chip,also called low-temperature easy cationic dyeable section, is a cationic polyester that can be dyed at atmospheric pressure.By modifying CDP and adjusting its glass transition temperature, we reduced the coloring point temperature to below the boiling point of water,which overcame the disadvantage that conventional sections need to be stained at high temperature and pressure.This slice retains all the characteristics of conventional CDP in terms of performance, but the dyeing conditions are greatly reduced,which not only reduces the production cost, but also reduces the energy consumption and pollution of the dyeing process.It is a replacement product of CDP slice.