Teweixian Paper selected PET non-woven fabric, PTF breathable film, PE breathable film multi-layer composite material, and made by flexographic water-based ink printing process, it has the characteristics of smoothness, high strength, tear resistance, high air permeability, high moisture permeability, double leakage prevention, not easy to seep back, good heat sealing, etc., suitable for calcium chloride, magnesium chloride, dehumidification bags and other product packaging.