August 3rd, 2012

Nippon Nozzle Co., Ltd., Kobe, Japan recently installed a new, state of the
art melt blown system at Kochi Prefecture, Paper Industrial Center for
producing nonwoven fabrics with filaments from 1~5 microns in diameter.
This technology was developed at Nippon Nozzle over a period of years and is
expected to be used to produce nonwoven fabrics for a variety of
applications requiring micro denier fibers. Among them are medical, high
tech battery separators, industrial high performance filters, etc.

Nonwoven fabrics can be made of polyethylene, polypropylene, etc. which are
melted under high temperature 250~350 degree centigrade. Melt blown fibers
are air quenched, drawn and blown at a speed of 100 meters per minute onto a
conveyer belt from a 60 cm wide spinneret with 1200 micro holes at 100
meters per minute. Lines up to two meters wide can be made.