Polyester Making Process:
The principle ingredient used in the manufacture of Polyester Making is Ethylene,
which is derived from Petroleum. In this process, Ethylene is the polymer,
the Chemical Building Block of Polyester Making, and the Chemical process that
produces the finished Polyester Making is called Polymerization.
Manufacturing Polyester Making:
Most Polyester Makings are made from Petroleum from which the constituent acids
and alcohols are derived. The types of processes that manufacturers use vary,
and little is known about specific Manufacturing processes, because the companies
want to keep them a secret in order to remain competitive.
Here is a general description of how Polyester Making is synthesized:
1) Polymerization:
Condensation Polymerization occurs when the acid and alcohol are reacted in a vacuum at high temperatures.
The polymerized material is extruded in the form of a ribbon onto a casting trough or cooling wheel.
After the ribbon hardens, it is cut into chips.
2)Spinning:
The chips are dried and then put into hopper resevoirs for melting. Polyester Making is a "melt spun" Fiber,
which means that it is heated, extruded through the spinnerets, and cools upon hitting the air.
From there it is loosely wound around cylinders.
3)Drawing:
The Fibers are then hot stretched until they are about five times their original length in order
to decrease their width. The Fiber is then wound onto cones as Filaments or is crimped and
then is cut into staple lengths.
1) Adding a delusterant: Polyester Making is a
naturally bright Fiber, but can be made dull or semi-dull by the addition of
a delusterant.
2) Changing the shape of the spinneret: The simplest
and most common shape is a circle, but by changing ths shape of the spinneret, square,
oval, and bean-shaped Fibers can be formed. One can even create a hollow Fiber.
The different shapes affect the hand and strength of the Fiber.
3) Drawing it out more: Drawing out the Fiber
to five times its orginal length is normal, but Polyester Making can be stretched even
further to create the now-popular microFiber. Drawing it out may also affect
the strength, elasticity, and Dyeability.
4) Adding Dye: In its natural state,
Polyester Making is a slightly transparent off-white. Adding Dye at the Manufacturing
stage can create brilliant colors like electric blue and atomic red.
5) Crimping: When the Fiber is drawn out
it is long and smooth. Crimping can give the Fiber more texture and bulk and
can increase its insulation properties, as well as its elasticity.
Making Yarns: After the Fiber itself is created,
it is made into a Yarn. There are two types of Polyester Making Yarns: filament and spun.
Filament Yarns are made by taking the long Polyester Making Filaments, grouping them
together, and then twisting them to make them thicker and stronger. A monofilament
Yarn has just one, long Polyester Making Fiber that is not twisted.
Spun Yarns are produced: In much the same way
that a cotton or wool Yarn is produced. The long Filaments are fist cut into short
pieces called staples (see photograph.) These are then combined together and spun
to create a Yarn made up of thousands of short Filaments.
Blends: At this stage, Polyester Making can also
be combined with other Fibers to produce a variety of effects. Polyester Making and
cotton is probaby the most famous and popular blend. The Polyester Making helps the
fabric retain its shape and resist stains and wrinkles. The cotton makes the
fabric more absorbent and comfortable.
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