You Should Know

What type of resin and technique is normally used in making plastic bottles

HDPE Bottes

HDPE stands for High Density PolyEthylene, which is one of the most commonly used resins in making containers for chemical, food, dairy, pharmaceutical, and many other industries. HPDE offers mild stiff impact resistance and moisture barrier. Natural HDPE is translucent when uncolored but is often white-matched when made into bottles. Your shower gel and hair shampoo bottles are almost all made of HDPE.

EBM Bottles

Extrusion blow molding is recognizable by the hollow tube that is extruded from the machine to create the parts. This tube is referred to as a parison. A hollow mold then closes around the parison and cycles to the blow station. When at the blow station, the parison within the mold is molded through utilizing air pressure while another parison is being extruded from the machine.

Pros

  • Lower mold cost than ISBM & IBM
  • Lower production cost
  • Lower machinery cost
  • High productivity
  • Allow varity of products for purpose and shape
  • Easy to adjust bottle weight and thickness

Cons

  • Demands for highly expeienced technician to get real good quality
  • Product have"Flash(extra pastic attached to prodct)" and needs to be removed
  • Up to 60-100% of waste (flashes) needs to be recycled which adds cost and quaity defective potential