Advanced preform base geometry to improve the blow moulding process Injection moulding with preforms - does it always have to be this way?

摘要

The injection moulding process has its limits, in terms of design to produce tailor made preforms, especially in regards to the base wallthickness and undercuts. Blow moulding systems can not manufacture perfect bottle bases with the available preforms on the market. Reality is that these two facts results in blown bottles where almost on all bottle bases a waste rate of 2-10% of PET material appears. Mahir Aktas, CEO Creative Packaging Solutions (CPS), Turkey, therefore came to the conclusion that the base area has to be formed outside the tool and invented the minting of the preform base geometry in the post mould cooling station.