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Melt Spinning
The melt spinning process melts polymer with heat until it reaches the correct viscosity for spinneret extrusion. As the name indicates, the chips of polymers are melted and extruded through the spinneret to obtain the fibers. It is used for the polymers not decomposed or degraded by temperatures necessary for extrusion to be melted and pumped through a spinneret in an air chamber. The extruded stream cools and solidifies into continuous filaments and is then drawn out of the chamber, twisted and/or processed further, and subsequently wound onto spools. This spinning process works for making polyamide, polyethylene terephthalate, and polypropylene fibers—common materials in many textiles.
PSF (Polyester Staple Fiber)
Main markets and application fields for Polyester staple fiber are:
–Automotive Industry: needle felt (soundproofing of the vehicle)
–Furniture: wall and floor covering, filling wadding for sofa
–Bedding: padding for quilt, pillow, cushion, mattresses
–Insulation material (sound and pure thermal or mix with natural fibers)
–Nonwoven Industry (Geotextiles, medical application)
–Filtration (foods and others)
–Hygienic