IFJ_012021_techspotlight_Figure1 Ken Norberg February 16, 2021 30 Views Figure 1. Typical VacuFil process including Visco+ to upcycle fiber production waste and feed it back into the PET main melt stream for spinning. Photo courtesy of BB Engineering Figure 1. Typical VacuFil process including Visco+ to upcycle fiber production waste and feed it back into the PET main melt stream for spinning. Photo courtesy of BB Engineering