Apparatus and process for polygonal melt-blowing die assemblies

Details Apparatus and process for polygonal melt-blowing die assemblies Apparatus and process for polygonal melt-blowing die assemblies

1996-02-20

1997-07-08

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

156433, 156441, 26421114, 425 722, 425464, D01D 508, D04H 303

Patent

active

056457901

ABSTRACT:
There is disclosed a novel apparatus and process for melt-blowing fiberforming thermoplastic polymers at high rates to form high-loft, low density fine fiber webs suitable for insulation applications. The high rates are achieved by mounting melt-blowing spinnerettes on the surfaces of a polygonal cylinder and spinning fibers in a radial fashion, then deflecting the fiber streams 90 degrees by a secondary stream of cold air.

REFERENCES:
patent: 4048364 (1977-09-01), Harding et al.
patent: 4380570 (1983-04-01), Schwarz
patent: 5326241 (1994-07-01), Rook et al.
patent: 5476616 (1995-12-01), Schwarz

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