Project Report on PET Bottles [Eiri-1345]

While  PET bottle development was proceeding in the US,  a  large manufacturer of injection moulding machines in Japan, was leading a  project  to develop a machine to make  biaxially  oriented  PP (polypropylene)  containers. They recognized that  the  prototype machine  could  be used to produce the new PET  bottles  and,  in December  1975,  the  One-stage ASB-150  injection  stretch  blow moulding machine for making the new biaxial oriented PET  bottles was  unveiled.  All  one-stage injection  stretch  blow  moulding machines  derived  from  this original Stretch  Blow  design  are referred  to  as classic one-stage machines, as the  concept  has long since been extended into other PET developments. The classic one-stage machines design is extremely versatile in that the same basic  machine  design  can be used to make  a  wide  variety  of bottles and jars in all shapes and sizes, which was the  standard single-stage  machine in the early years, had eight cavities  for 1.5  litre  bottles.  Stretch  blow molding  is  best  known  for producing  PET  bottles  commonly used for  water,  juice  and  a variety of other products. Stretch  blow  molding  has  been used  since   the  early  1970's especially  for  packaging  detergent, and  has  grown  in  existence with the primary  use  for  making carbonated beverage bottles.