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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   × × 〇 ◎ ◎ ◎ × × × ×◎ ×
metal AL ◎ ◎ × × ◎ ◎ × 〇 × ◎ ◎
film OPP 〇 × ◎ ◎ △ △ ◎ × US ◎ ×
CPP 〇 × 〇 〇 × △ ◎ ◎ ◎ 〇 ×
PET 〇 〇 ◎ ◎ ◎ ◎ ◎ × × ◎ ◎
ONY △ 〇 ◎ 〇 ◎ ◎ ◎ × × 〇 〇
CNY × △ ◎ △ 〇 ◎ 〇 ◎ × △ 〇
LDPE 〇 × △ ×△ 〇 × 〇 ◎ ◎ △ ×
HDPE 〇 × 〇 △〇 〇 △ △ 〇 〇 △ ×
PVDC ◎ ◎ ◎ × 〇 〇 ◎ ×〇 W 〇 ×
PVC 〇 × 〇 △ 〇 △ ◎ ◎ W 〇 〇
PVA × ◎ ◎ 〇 〇 〇 ◎ 〇 × △ 〇
EVOH × ◎ ◎ 〇 〇 △ ◎ 〇 × △ 〇
OPS △ × ◎ ◎ 〇 〇 ◎ ◎ 〇 〇 ×
PVDC KOP ◎ ◎ ◎ ◎ △ △ ◎ × 〇 ◎ 〇
Coating KPET ◎ ◎ ◎ ◎ ◎ ◎ ◎ × 〇 ◎ ◎

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