... for whitening chemical fibers, such as the polyester fibre, nylon fiber, polypropylene fiber and so on.2. Suitable for whitening and brightening ... polypropylene plastic, hard PVC, ABS . EVA, polystyrene, polycarbonate, etc.3. Suitable ... every 1000kg materiel.1. The add-on amount of EVA, polypropylene, nylon and polycarbonate is 75 ~ 200g.2. The add-on ...