... and neutralizing PH value of cotton, polyester, wool, and acrylic. Product outlineTasteless acid JL - S - 1 is a kind of special components ... every lot dyed fabric. 2. Suitable for polyester, cotton, wool, acrylic, viscose glue, garment washing, ECT. 3. Suitable for the pretreatment ... , precipapition, and will not effect by hard water Tasteless acid JL - S - 1