How Polyester Yarn is Made.
Who discovered Polyester.
Polyester began as a group of polymers in W.H. Carothers' laboratory. Carothers was working for Dupont at the time when he discovered that alcohols and carboxyl acids could be successfully combined to form fibres.
Polyester was put on the back burner, however, once Carothers discovered nylon. A group of Brittish scientists--J.R. Whinfield, J.T. Dickson, W.K. Birtwhistle, and C.G. Ritchie--took up Carothers' work in 1939. In 1941 they created the first polester fiber called Terylene. In 1946 Dupont bought all legal rights from the Brits and came up with another polyester fibre which they named Dacron.
Terylene - Dacron - Tetron - In India it is the monopoly of Reliance and is called "Recron"/
If you need this fiber for use in your mill it is not available in the lanes of Mumbai or in hi tech shops any where in India.You got to meet the agent in your area who will collect the money from you first and then the fibre is delivered to your mill direct and you need not pay any tax a special feature by Reliance Group in India who rule the country of India as the only manufacturers of Polyester Fibre for various applications in apparel, industrial and all forms of technical textiles in India.No country in the world is willing to start manufacture this wonder fiber on account of the high money and political power that rules the company that manufacturers this fibre in India.The textile Industries that use this fiber are also afraid to buy any other brand of polyester fibre .
If you are starting the manufacture of this fiber for the first time then you will get free technical help from this manufacturer,a tradition set up by ICI chemicals who were first to make this fiber in India under the name TERELENE. They imported the fibre TERELENE even before they started manufactured the fiber.There was only Viscose Fiber made by BIRLA'S at their plant in NAGDA & HARIHAR and in some place in KERALA.
Once Terelene entered the market there was a rush for the fiber and it is still the No.1 fiber in use in all textile mills in INDIA.It can be spun as 100% as yarn and has use as a blend in every fiber in the world.The 67% Polyester and 33% Cotton has now in so many combination's that a standard blend is still not available.What is comfortable in one blend for one particular fabric is not in use in another.
The first fine polyester was 1.5 denier and 3.0 denier for apparel use for shirts and pants.It was not long before it entered the saree in 1.2 denier and it is going strong in less than 1.0 denier in blend with any filament yarn that is available most popular being nylon and silk which has a craze for females as saree and as decorative fabric in furnishings for windows.
The manufacture of staple fibre polyester as yarn is similar to cotton with machinery specifications getting varied from one textile mill to another.For woollen blends it can be spun as in cotton with wool being cut to desired length equal to that of polyester.The spinning of polyester and wool can be similar to cotton system again with different machinery specifications.The problem with spinning is not the fibre or the machinery but with technology.
The fibre manufacturers being well aware of this lack of knowledge in the textile industry are ready to help mills in their problems in processing with highly qualified and experienced textile technologists in their service sections and no body will have any problems in processing polyester in their mills.On account of this the fibre is in heavy demand in any varieties that they are made in what ever form it is made.
Coloured fibre is another new addition in manufacture of the fibre. The.The process of dying the raw fibre polyester being highly sophisticated requiring high temperature and high pressure machines in the processing department of the mills.However our textile machinery manufacturers were ready to copy the machines and even improve on them soon.Still we have separate dying units processing polyester fabrics.The recent R&D has also developed such fine fibres which resemble even like pure silk with better features than natural silk.There are special types which come in such shapes in Fibres itself.that textile manufacturers have to keep changing their production planning and sales being planed by constant change and severe competition from other textiles manufacturers.The other benefit of long life helps people in low income group and others who travel extensively to several places carry very few clothes and there is sufficient natural fibres being preserved with cost increase being unnecessary as supply will be more than demand for raw materials.
Know Polyester it is here to stay for long in spite of high competitions from other FIBRES.