InnoPET Blomax PH Series III: Preferential heating

Customized bottles for special applications – these are, for example, oval PET bottles for packaging of food, cosmetics and cleaning agents. "Exotic" bottles are frequently required for cosmetics – the highest-grade products offered in PET bottles thus far.

The combination of unusual design and optimized quality is a technical challenge. However, KHS Corpoplast engineers have faced this challenge with the development of the InnoPET Blomax PH. The affix PH stands for the selective preform heating (Preferential Heating) process developed by KHS Corpoplast. The orientated preform is heated in a pre-defined manner from two sides on a mandrel which can be locked into position with a guide. This results in a controlled, optimized and uniform material distribution. Cost-effective, light-weight oval bottles with perfect appearance and geometry can be produced which precisely comply with the stipulated specifications.

Using this technology, bottle designs which are aesthetic as well as technically demanding can be implemented.

Comparison of standard processes and Preferential Heating
Heating configuration:


Mandrel orientation blowing process