Lu Zhang, DuPont
With the increasing awareness of contaminants
in air streams, customers today are
demanding more stringent filtration apability.
DuPont’s Hybrid Membrane Technology
(HMT) offers a unique synthetic nanofiber-
based media with superior barrier flux
property and non-diminishing efficiency. It
is tailored to meet the requirements of a
variety of air filtration applications, including
industrial HVAC and cabin air. The many
benefits to end-users include enhanced air
quality, reduced energy cost, and longer
service life. Hear about the uniqueness of
HMT media and filter performance.
Advances in Spunmelt
Technology for Fine
Fiber Filtration
Pierre Grondin, PGI Nonwovens
Nonwovens made with synthetic fibers
comprise a major share of the filtration
market. Changing industry standards, new
industry initiatives, and consumer awareness
are challenging the nonwovens industry
to provide new products with improved
mechanical filtration efficiency. Recent
advances in conventional spunmelt quipment
technology and process innovations
have successfully demonstrated the economical
production of fine fibers excellent
for improved mechanical filtration.
Adsorptive and Reactive
Nanofiber Structures
Andrew Dallas, Ph.D., Donaldson
Company, Inc.
Nanofibrous substrates have been used
extensively for the removal of particles
from airstreams. Recently, these materials
have been applied to a wide range of
unique filtration and separation systems.
Also, nanofibers combined with adsorptive
and reactive particles are finding uses in
chemical and biological protective textile
and filtration applications. Hear how the incorporation of adsorptive and reactive
species with polymeric nanofibers can
provide unique chemical and particle filtration
structures.
Variations in Meltblown
Apparatus/Process
and Resultant Web
Characteristics
Edward McNally, Oerlikon Neumag
Nonwovens
Review of meltblown apparatus and
processes and the associated web characteristics
generated by varying such
configurations. Included are: polymer and
polymer ratio variations, post spinning
quench methods and meltblown die tip
hole densities. Technology, process review
and results described.
Program subject to change. The opinions expressed at
Filtration 2007 are those of the speakers and not necessarily
that of INDA or its Board of Directors.
Photos courtesy of Filtration Group, Inc. and Freudenberg
Nonwovens