Protection
Protection against both high and low energy impacts may be provided by
non-textile materials. Rigid materials, which may be polymer plates with
or without textile components, are used to spread the load over a larger
area than the impact source. Both open-cell and closed-cell foams may
be used to absorb the energy of impact. Multi-layer textiles may be used
for similar purposes. Obviously garment/component design is important
to maintain mobility, possibly by segmentation to provide articulation,
whilst ensuring maximum protection.
Another area which is extremely important in a wider context is protection
from radiation, particularly ultra-violet radiation. Although protection
is necessary from the normally transmitted wavelengths, increased concern
is being expressed because of reduced protection caused by depletion of
the ozone layer. There is a great deal of interest at the moment in increasing
U.V. absorption using a combination of fibre and fabric constructions,
inherent U.V. absorbers incorporated at the fibre extrusion stage and
U.V. absorbing finishes.
Other areas of concern include flame retardency, heat resistance, anti-microbial
products and, in a wider context, resistance to a wide range of other
agencies, including chemicals, radiation, toxic gases and micro-organisms.
The distinction between sportswear, personal protective clothing and even
military clothing are becoming increasingly blurred.
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