Plastic bag
device · 1965 · Digital age
A polyethylene bag (Thulin).
What it is made of
- Plastic film — has part. A thin polyethylene film.
- Heat-sealed seams — has part. Heat-sealing of the bottom and sides.
- Handles — has part. Cut-out handles.
Principles and materials it uses
- Polyethylene — is made of. Polyethylene.
- Plastic — is made of. A plastic bag is a thin polyethylene film.
History: what it evolved from and what it influenced
- Paper bag — evolved from. A replacement for paper.