What is Micro fiber?
One of the most important developments in recent
years has been the technology to extrude extremely fine filaments (less
than 1.0 denier) while maintaining all of the strength, uniformity and
processing characteristics expected by textile manufacturers and
consumers. These “microfibers” are even finer than luxury natural
fibers, such as silk [#1]. This comparison, coupled with their
exceptional performance, has led some in the industry to refer to
micro fibers as “supernatural”. They live up to that name.
In many product lines, it is the luxurious feel and
look of the fabrics which makes microfiber so special. In others, it is
this unique physical and mechanical performance.
Consider, for example, the advantages of polyester
microfiber when used in outerwear. A raincoat or jacket made from 100%
microfiber will be much lighter and more comfortable than one made from
conventional fibers. [#2] Since the small filaments pack closely
together, they provide a wind barrier to prevent loss of body heat and
assuring comfort on chilly days. This close packing of fibers, together
with polyesters' natural resistance to wetting also gives the fabric the
ability to repel rain. [#4] The non-wetting surface of the fibers causes
water to form beads (like rain on a newly-waxed car). These beads are
much larger than the spaces between the yarns and water is effectively
locked out. And this is done without the need for chemical treatments or
coatings which can make the fabric heavier and less able to "breathe".
Fabrics from microfibers, on the other hand, breathe well. [#3] Although
the spaces between the yarns are too small to be penetrated by liquid
water, they are ample for the passage of moisture vapor, leaving the
wearer dry and comfortable.
This is only one example. Microfiber yarns are now
available for most major generic fibers. They can
bring their outstanding performance to a wide variety of end uses.