Rayon fiber
Rayon
fiber is a regenerated cellulosic fiber made from natural sources of cellulose
such as wood and related agricultural products with the same molecular
structure as cellulose. These fibers are used to make textiles for clothing and
other needs. Rayon fiber is the first manufactured cellulosic fiber. Count
Hilaire de Chardonnet is called the 'Father of Rayon', who was the first practical
commercial manufacturer of rayon fiber. It is available as filament, staple, and
tow and used in staple form.
Usually,
the range of rayon fiber is 1.5 to 15 deniers. Observed under a microscope, a
regular viscose rayon fiber shows a striated surface and a serrated
cross-section. It replaces chemicals that contain no more than 15% of the
hydrogens of the hydroxyl groups where 100% is a manufactured fiber consisting
of regenerated cellulose or regenerated cellulose. It is soft, comfortable, versatile, and mostly used woven fabric. Sometimes it is used in non-woven fabrics.
Properties of Rayon
i.
Rayon fiber is a regenerated cellulose fiber made from a natural cellulosic
source.
ii.
The extensibility of lyocell rayon fiber fabric is an effective parameter for
the development of excessive wet shrinkage or the presence of slack in the case
of clothing products.
iii.
Its fibers range from 1.5 to 15 deniers.
iv.
It is soft, comfortable, and versatile.
v.
It loses strength temporarily when wet.
vi.
It is naturally very bright fiber
vii. It can emulate the feel and texture of silk, wool, cotton, and linen.
viii.
These fibers are easily dyed in a wide range of colors.
ix.
Its fabrics are very soft, smooth, cool, comfortable, and highly absorbent, but
they do not always insulate body heat.
x.
The durability and appearance retention of regular viscose rayons are low,
especially when wet.
xi.
It has the lowest elastic recovery of any fiber.
xii.
High-wet-modulus rayon is much stronger and exhibits higher durability and
appearance retention.
xiii.
Regular viscose-rayon recommended care is dry-cleaning only.
xiv.
It is more moisture-absorbent than cotton and it does not build up static
electricity.
xv.
It is not resilient like other cellulosic fibers,
xvi.
It withstands ironing temperatures slightly less than those of cotton.
Uses of rayon
The
fabrics are made from rayons disposable diapers, hygienic and irregular
pads, and feature high absorption and moisture for medical supplies. Some
fibers are strengthened by showing versatility and the ability to blend easily
with many fibers. The modal is a high-wet modulus rayon, second-generation
technology that has virtually high wet strength and extra softness which makes
it especially effective for body contact garments such as lingerie and
underwear. It is wear-resistant and can be dried without being pulled from and
it is lustful. As with the modal, the unit volume is about 50% more
water-absorbing than other fiber cotton. The fibers are made to prevent
shrinkage, fading, and turning gray and color fastening. These are often blended
with cotton, wool, or synthetic fibers and the dyes hold and hold well.
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