FOERFARANDE Foer FRAMSTAELLNING AV ETT SOEMLOEST ROERFORMIGT FILTER ELEMENT OCH ETT SOEMLOEST ROERFORMIGT FILTER ELEMENT

摘要

A process is provided for the continuous production of modular tubular filter elements using nonwoven webs in cylindrical or sheet form spun from thermoplastic fibers, spinning the fibers continuously from a melt onto a rotating internal tubular core for the filter element, serving as a mandrel, and winding them up on the core to form a wound tube.