Device for hydrodynamic supply of the fluid to fibers of a fiber web

摘要

A device is known in which the bulky nonwoven arriving on a continuous belt for water needling is slowly compressed between a needling drum and another belt and at the same time is wetted by a first water curtain from the nozzle bank; its water jets first flow through the continuous belt and then the fiber web and ultimately the needling drum. There is a simpler and thus more economically producible device of this type when instead of the needling drum this compacting unit consists only of two continuous belts which however should be guided such that at the inlet the two working sides of the continuous belts slowly compact and press the incoming nonwoven, and then the belts lying on one another are moved past the nozzle bank as they are held pressed. Additional deflection rollers are used for this purpose.