POLYPROPYLENE FIBER Manufacture
The polypropylene fibres or continuous filaments are produced by using melt -spinning process.
The polymer chips are heated above melting point temperature with the help of hot air or another heating arrangement.
In this way, molten polymer is obtained. Now this molten polymer is sent to the spinning system with the help of geared feeding pump, here the molten polymer is homogenised first and then it passes through a filter.
Now, the filtered molten polymer is fed to spinnerets. When the molten polymer comes out from thin holes of spinnerets, the newly formed filament is hot.
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