Water and heat are only part of the equation. To achieve deep cleaning, you need the right PET washing chemicals. In a professional hot wash cycle, two main components are used to transform dirty plastic into high-value raw material.

  1. 苛性钠（氢氧化钠 – NaOH）： 通常以1%到2%的浓度添加。其主要作用是皂化油脂并溶解用于标签的粘合剂。它有效地“去除”PET表面的污染物。
  2. 专用洗涤剂/表面活性剂： 虽然苛性钠承担了主要工作，但表面活性剂有助于悬浮松动的污垢和油脂在水中，防止它们重新附着在碎片上。

Proper dosing of these cleaning additives is critical. Too little, and the flakes remain oily; too much, and you increase your wastewater treatment costs. If you are interested in the PET bottle recycling process, feel free to contaact us, our engineer will ensure you use exactly what you need for maximum efficiency.