What are the main production processes for plastic bottles?

There are two common types of plastic bottle production processes:

The first is the extrusion process, that is, plastic raw materials into the extruder, after heating melting plastic extruded melting type blank, and then put into the bottle mold blowing molding, cooling after the formation from the mold, repair the waste edge after the finished product. This process is mainly used to produce polyethylene, PVC plastic bottles, such as milk bottles, soy sauce bottles.

The second is the injection blowing process, that is, plastic raw materials by injection molding machine injection tube-shaped blanks, and then put into the bottle mold by stretchblowing molding, cooling to get the finished product. This process is mainly used to produce PET plastic bottles, such as mineral water bottles, etc.