Page 2 - Lesson Notes
P. 2

  Rayon is a semi-synthetic fibre.

              As rayon is prepared by the chemical treatment of wood pulp in factories, they termed to be

























               as synthetic fibres, instead of natural fibres.

            Properties of Rayon:

                 When rayon is compared with silk, it is inexpensive but can be woven like silk fibres.

                 Rayon is chemically identical to cotton but it has a shine like silk.

                 Rayon can be dyed in a variety of colours.

            Uses of Rayon:

                 Used in textile industry for making clothes like sarees, blouses, dresses, socks, etc.

                 Used to make furnishings such as bed-sheets, curtains & blankets.
                 Used to make carpets.

                 Used for making bandages and surgical dressings.
                 Used in tyre industry for the manufacturing of tyre cord.


        NYLON:

                              st
              Nylon is the 1  fully synthetic fibre made by man without using any natural raw materials.
              It is made in 1913, by using coal, water and air.
              The chemical compounds used in making nylon are now obtained from petroleum products.

              Nylon is made up of the repeating units of a chemical called as “amide”.

              Therefore, Nylon is often regarded as “Polyamide”.
              Nylon can be melted on heating. So, molten nylon are forced to pass through the tiny holes

               of the spinneret to make nylon threads or cast fibres into desired shapes.











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