Page 2 - LN
P. 2

PROCESS OF MAKING SYNTHETIC FIBRES:

              The chemicals substances are heated at first, so that they melt down.
              Now, the  melted substance is forcibly passed through spinnerets that have fine pores in
               them.
              The long threads that come out from these pores are allowed to cool and solidify.
              These threads are then twisted together to form a yarn.
              These yarns are then woven to make fabrics.



        DIFFERENCE BETWEEN NATURAL AND SYNTHETIC FIBRES:

                               Natural Fibre                                   Synthetic Fibre
         1.  Natural  fibres  are  fibres  that  are  found  in  These  fibres  are  man-made  or  simply
              nature.                                            prepared in lab.
              Ex: Wool, Silk and Cotton etc.                     Ex: Nylon, Rayon etc.
         2.  They are good absorbents and so, are able to  They  do  not  have  such  air  pores  as  they
              absorb  heat,  temperature,  cold,  sweat  etc.  are  made  up  of  chemical  substances and
              depending on conditions and nature of fibres.  so do not act as good absorbents.
         3.  Comfortable in use.                                 Not as comfortable as natural fibres.
         4.  Their length is naturally obtained and it is not  Their lengths can be controlled by man and
              possible to change the fibre structure.            the  fibres  can  easily  be  changed  to
                                                                 different structures.


        BLENDED FIBRES:

              Blended fibres are the fibres which are made when synthetic fibres are mixed or blended
               with other natural fibres, to enhance the property of the product.
              E.g.:   Polyester + Cotton = Polycot
                       Polyester + Wool = Polywool
                       Terylene + Cotton = Terrycot







                                                                                                                2
   1   2