Nouvelle 14++ Pretreatment Process
Nouvelle 14++ Pretreatment Process. Typical multimetal pretreatment processes table ii: Among the pretreatment process, hydrothermal treatment is an environmentally friendly pretreatment process, compared with chemical pretreatment, because it uses only water for reaction medium, without additional chemicals. Natural fibers and synthetic fibers contain primary impurities that are contained naturally, and secondary impurities that are added during spinning , knitting and weaving processes.textile pretreatment is the series of cleaning operations.