#DOES POLYESTER STRETCH SERIES#

The windup speed of the entire process can be anywhere from 300-500 mi (482.7-804.5 km) per minute depending on the thickness of the fibers.

#DOES POLYESTER STRETCH SERIES#

Then the fibers are transferred through a series of rollers onto a spool. The fibres are treated with magnesium stearate or poly(dimethyl-siloxane). Usually, the fibres of spandex consisted of many smaller fibres which stick to one another because of natural stickiness.

Afterwards, a precise amount of the solid strands are bundled together to produce the essential thickness. Through a compressed air device, the fibers exit the cell. The spinning solution is pumped into a cylindrical spinning cell where it is cured and converted into fibres. It can then be pumped into the fiber production cell. The resulting solution is diluted with a solvent to produce the spinning solution and the solvent helps make the solution thinner and more easily handled. A recommended ratio of macro-glycol to diisocyanate is 1:2.Дuring dry spinning, the prepolymer is then reacted with the same amount of diamine, and this forms achain extension reaction. The process starts with the production of prepolymer through mixing macro-glycol with a diisocyanate monomer. There are 4 different ways to produce the fiber, melt extrusion, reaction spinning, solution dry spinning, and solution wet spinning. The production process passes through 3 phases and 6 steps.

After almost a decade later, in 1959 he perfected the fiber, and it firstly called Fiber K, then DuPont decided to use the trade name вЂLycraвЂ™.ДЇull-scale manufacturing started in 1962 by DuPont, and they are currently the world leader in elastane production. Shivers was motivated to replace rubber-based fibers. Other than this, rubber was a highly important material during the war to build various equipment, and its price was fluctuating. The production of Elastane started during WW2, since rubber-based fibres such as latex were not lightweight, durable and strong enough. When a force is removed, the amorphous sectors recoil and the fibers become relaxed. After reaching the maximum length, rigid sectors bond to each other, and amorphous sectors remain stretched. herefore, the amorphous sections straighten out and become longer. When fibres are forced to stretch, bonds between the rigid sections are broken. These segmentsвЂ™ features explain how the fibre stretches and recoils when released, and they together make the fibres soft. The chemical composition of Elastane makes it capable of stretching up to 600% of its original length.Д®lastane fibres consist of many polymer strands, which are composed of two segments: long amorphous and short rigid segments.

Elastane fibers are strong, versatile and lighter than rubber which makes them superior. The fibre can be stretched to some degree and comes back to its shape when released. Background of ElastaneДЄs a synthetic polymer, Elastane is contains at least 85% polyurethane. It is made up of a long chain polymer called polyurethane.

The term вЂSpandexвЂ™ is used mostly in North America, however вЂElastaneвЂ™ and вЂLycraвЂ™ are used more in Europe, UK, Australia and Middle East.Д®lastane is a lightweight, synthetic fibre that is used to make stretchable clothing such as sportswear. The word itself is an anagram and comes from the verb вЂњexpandsвЂќ. What is Elastane?Д®lastane is also known as Lycra or Spandex. Ever wondered what makes sportswear so stretchy and elastic?В Here is everything you need to know about elastane.

Does polyester stretch