From the Sector

Polyester and its applications are omnipresent in our everyday lives. Whether as beverage bottles, film packaging, high-tech sports shirts or safety belts, polyester excels with its excellent mechanical properties and inexpensive production. However, the constantly rising demand requires responsible handling of global resources. For this reason, it is not only ‘virgin polyester’ generated from crude oil that is exclusively the raw material for manufacturing, so too is polyester recycled from post-production and post-consumer waste. Processing production waste also helps cut raw material, disposal and transport costs, hence increasing efficiency.

BB Engineering has developed an innovative solution for the recycling of post-production polyester fibre waste, called VacuFil. Decades of experience in the areas of extrusion, filtration and spinning systems have been bundled into a new, innovative core component – the vacuum filter. It unites gentle large-scale filtration and controlled intrinsic-viscosity build-up for consistently outstanding melt quality. The attached vacuum swiftly and reliably removes volatile contamination and ensures a controlled IV-increase. Comprising an inline viscosity measuring unit connected with the vacuum unit the IV can be controlled continuously and reliably. Hence, producers are able to generate that specific kind of recycled polyester they need for their application.