Method and apparatus for treating meltblown filaments

Details Method and apparatus for treating meltblown filaments Method and apparatus for treating meltblown filaments

1990-10-11

1991-12-24

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

156167, 264115, 2642108, 26421112, 26421114, D01D 508, D01D 700

Patent

active

050750682

ABSTRACT:
A meltblowing die is provided with means for discharging crossflow air onto meltblown filaments to disrupt their shape and flow pattern between the die and the collector. The disruption enhances drag forces imparted by the primary meltblowing air and results in smaller diameter filaments.

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patent: 4904174 (1990-02-01), Moosmayer et al.
patent: 4925601 (1990-05-01), Vogt et al.

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