The Dry SPUN PROCESS produces a fiber with a bone shaped cross section with a
rounded surface. This aspect enables the fiber to have a reduced bending
modulus (recovery), a uniform breaking elongation, with excellent tenacity and
resiliency. These characteristics are particularly useful when manufacturing
garments and household textiles.
When observed under the microscope, the differences between dry and wet spun
fiber can be easily observed:
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HIGHER BULK / VOLUME |
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The bone-shape characteristic of dry spun fiber prevent
individual filaments to agglomerate (fitting), resulting in a higher and better
loft, compared to that produced by the wet spun fiber whose cross section is
round.
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BETTER THERMAL INSULATION |
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A larger amount of air gets trapped in the yarn due to the
bone-shaped cross section of the fiber, reducing garment heat loss.
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HIGHER CONVERING FACTOR |
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The bone-shape of our fiber allows for the yarn to have a
higher surface/volume ratio than that which can be achieved with a round cross
section fiber. This advantage enables manufacturers to produce a fabric with
fewer yarns per square meter and obtain a garment of less weight.
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PLEASANT DRY FEEL |
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The capillary space between the fibers absorb humidity
generating a pleasant sensation of dryness, which is particularly advantageous
in socks and stockings.
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SMOOTH FEEL(HAND) |
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The smooth surface of the filaments obtained with dry spun
acrylic, allows the fiber to bend more easily (lower bending modulus), compared
to wet processed fibers, providing a gentle and much more pleasant touch.
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DIMENSIONAL STABILITY |
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The characteristics of dry spun acrylic together with it's
uniform elongation and tenacity properties gives the fiber a greater
dimensional stability and resiliency (very important in carpets and knitted
products).
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RESISTANCE TO THE ABRASION AND PILLING |
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The excellent tensile strength and resiliency of "Drytex®"
allow yarns to have a higher resistance both to abrasion and pilling.
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CLEAR AND INTENSE COLOURS |
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The shape of the fiber together with the co-monomer present,
gives off a higher level of light reflection, greatly improving the intensity
of the colours in the finished product.
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MINIMUM MACHINE CALIBRATION |
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A single machine calibration is all that is necessary to
process the different dTex's of our fiber avoiding the need to constantly
change settings. It is possible to regulate the stretch breaking machine with
different drafts and temperatures in order to achieve a variety of fiber
shrinkages, resulting in a variety of products with different characteristics,
and thus enabling the manufacturer to produce a wide variety of products.
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EASE OF DYEING |
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The speed rate of the dyeing process is much slower than with
wet spun acrylic fibers. Therefore, the dying process is much safer and
requires the use of less retarding agents.
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