Apparatus for blow-extruding filaments for making a fleece

Details Apparatus for blow-extruding filaments for making a fleece Apparatus for blow-extruding filaments for making a fleece

1991-11-14

1993-09-28

Heitbrink, Jill L.

Plastic article or earthenware shaping or treating: apparatus

Continuous filament forming or film casting means with...

264518, 425 722, D01D 508

Patent

active

052482472

ABSTRACT:
In a apparatus of making a nonwoven mat wherein a multiplicity of filaments are extruded in a row and a pair of jets of compressed gas are played symmetrically from nozzles upon the filaments as same are extruded to stretch the filaments and deposit same on a substrate the compressed gas is made to flow from a source along respective paths to the nozzles and each of the flows and paths is branched upstream of respective flow-equalizing stations. The speed of the respective flows is decreased and their pressures are increased with at least one diffuser. The flows are then baffled and united between the flow-equalizing station and the respective nozzles in a flow guide.

REFERENCES:
patent: 3802817 (1974-04-01), Matsuki et al.
patent: 3970417 (1976-07-01), Page
patent: 4064605 (1977-12-01), Akiyama et al.
patent: 5080569 (1992-01-01), Gubernick et al.

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