Plastic, in the from of celluloid, was first introduced
in the late 19th century. The disadvantage was that it was
flammable, so after World War Ⅱ it was replaced by
thermoplastics.
The raw material for plastic is petroleum,
which undergoes a number of processes to
become plastic material.
Gasoline used in automobiles is the same raw
material is used for manufacturing plastic.
Some plastics soften when heated
(in the same way that chocolate soften when heated)
and other types of plastics harden when heated
(think of how eggs "harden" when they are heated).
Sanko can process any type of plastic.
Plastic does not conduct electricity, so it is easy to charge. In other words, clothes made from resin fibers are prone to generate static electricity.