PROCESS AND APPARATUS FOR PRODUCING THERMOPLASTIC FIBRES

摘要

Multiple jet fiber attenuation, the jets converging to provoke mutual impact and create a combined jet flow, the jets comprising fuel and comburent components in proportions providing a combustible mixture in the combined jet flow, a stream of attenuable material being delivered into the combined jet flow and providing for ignition of the combustible mixture in a localized zone and thus for attenuation at elevated temperature in said zone.