SEJARAH

Blow molding is a manufacturing process to make hollow products (bottle) which parison is made from extrusion process who improved on mold by gas pressure. Basicly, blow molding is development from extrusion process pipe with extra mechanism mold and blowing.

Blow molding process:
~ Parison is extruded down between mold hollow (mold)
~ Mold is close so that parison will clamped by mold
~ Parison is blown by high pressure gas then push the plastic out to the wall of mold and match the mold hollow
~ The product has cooled and ejected from the mold.

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