a hot quantity of soft or molten polymer (or glass) that is partly blown or formed into a shape before its final shaping in a mold.
(French, paraison) gather, on the end of a blowpipe, which is already partly inflated.
in blow molding, the hollow tube of plastic melt extruded from the die head, and expanded within the mold cavity by air pressure to produce the molded part.
The first small bubble at the end of a blowpipe.
A hollow plastic tube in the blow molding process into which air pressure is introduced to form a container.
The preliminary shaped red hot glass that hangs from the neck rings as the blank molds open. The parison is also called "pattern" or "blank."