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Manufacturing Process of Aramid Yarn for Optical Cables

The manufacturing process of aramid yarn for optical cables begins with the production of the polymer. The polymer is made by reacting a para-phenylenediamine with a terephthalic acid. The resulting polymer is then spun into fibers.
The fibers are then twisted together to form yarn. The yarn is then coated with a sizing material to make it easier to handle during the manufacturing process. The sizing material is typically made from a water-soluble polymer.
The yarn is then wound onto spools and shipped to manufacturers of optical cables. The manufacturers of optical cables use the aramid yarn to make strength members, buffer tubes, and jacketing materials.



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