What are differences between OPP plastic bags and PE plastic bags? Let’s answer this question with Hanpak.
1/ OPP plastic bags: Oriented polypropylene
Features: most transparent, hard, tensile strength is same at every point, can not be stretched (two-way stretch), easy to tear on both sides of the seal.
2/ PP plastic bags: Polypropylene
Features: transparence and hardness are lower than OPP’s, can be stretched (two-way stretch), tough and flexible and have good resistance.
3/ PE plastic bags: Polyethylene
Features: transparence is lower and softer than PP’s.
HDPE: high density polyethylene – feel crisp, tensile strength is higher, slightly harder, more heat resistant and more opaque than LDPE.
LDPE: low density polyethylene – feel soft, tensile strength is lower, and resilience is higher than HDPE.
(Source: Hanpak)