Safety
and Energy Challanges fibres
The
early 1970's saw a wave of consumer protection demands, most notably
one for a mandated Federal flammability standard for children's sleepwear.
The artificial fibre industry spent $20 million on flammability research
and development in 1972 and 1973, and artificial fibre fabrics became
predominant in this market. Flammability standards were also issued
for carpet and other products. In the U.S. carpet market, 99% of all
surface fibres are now manufactured fibres.
In late 1973, when the U.S. was struck by a severe energy crisis,
the manufactured fibre industry reduced the energy required to produce
a pound of fibre by 26%. By then, the industry was using but 1% of
the Nation's petroleum supply to provide two-thirds of all fibres
used by American textile mills.
Today innovation is the hallmark of the manufactured fibre industry.
fibres more numerous and diverse than any found in nature are now
routinely created in the industry's laboratories.
Nylon variants, polyester, and olefin are used to produce carpets
that easily can be rinsed clean - even 24 hours after they've been
stained. Stretchable spandex and machine-washable, silk-like polyesters
occupy solid places in the U.S. apparel market. The finest microfibres
are remaking the world of fashion.
Industrial Safety
For
industrial uses, manufactured fibres relentlessly replace traditional
materials in applications from super-absorbent diapers, to artificial
organs, to construction materials for moon-based space stations.
Engineered non-woven products of manufactured fibres are found in
applications from surgical gowns and apparel interfacing to roofing
materials, road bed stabilizers, and floppy disk envelopes and liners.
Non-woven fabrics, stiff as paper or as soft and comfortable as
limp cloth, are made without knitting or weaving.
Fire Safety
Just
about everything will burn under the proper conditions. However,
most synthetic fibres resist ignition because they melt and shrink
away from heat sources. This is why synthetic fibres are used so
extensively for children's sleepwear, which must pass a demanding
flammability test to be sold in the U.S. Synthetics are also widely
used in upholstery fabrics for furniture, especially when the strict
California flammability standard for public occupancies must be
met.
For some high-risk uses, the inherent ignition resistance of synthetics
is not enough to provide adequate fire protection. Flame retardants
may be added during manufacturing to impart a higher degree of fire
resistance. There are also special fibres, such as the aramids,
PBI and sulfar, which provide a very high degree of protection.
These fibres are made from heat-stable polymers that do not melt
or burn.
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