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    Common physical properties of flexible packaging material
      Barrier properties strength function
    Water and gas oxygen general Stiff Hypothermia high temperature Transparent forming Sealing print Paul Shannon
    paper   × × × × × ×◎ ×
    metal AL × × × ×
    film OPP × × US ×
    CPP × × ×
    PET × ×
    ONY × ×
    CNY × ×
    LDPE × ×△ × ×
    HDPE × △〇 ×
    PVDC × ×〇 W ×
    PVC × W
    PVA × ×
    EVOH × ×
    OPS × ×
    PVDC KOP ×
    Coating KPET ×

    ◎:excellent 〇:good△:general×:badUS:Ultrasonic SutureW:High Frequency Sealing

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