Department of polypropylene film easy residue hydrocarbon solvent, and hydroscopicity films, such as nylon, cellophane) is easy to alcohol solvent residue.

• 聚丙烯解薄膜便当残留碳氢解溶剂，而吸水性薄膜（如尼龙、玻璃纸）则便当残留醇解溶剂。