What is polyester staple fiber (PSF)?
Among all the man-made synthetic fibers present in the world, Polyester Staple Fibre (PSF) has emerged as the fastest-growing fiber. Through the polymerization process, Purified Terephthalic Acid (PTA) and Mono Ethylene Glycol (MEG) are used as raw material to manufacture polyester fiber. Then the melt-spun method is used to obtain continuous filaments of polyester fiber which is known as tow. Many other processes are applied to this tow to further enhance their properties. And in the last stage, to get staple fibers these polyester filaments are cut in small fixed lengths similar to those of cotton fibers. These small fibers are called Polyester Staple Fibre (PSF).
Sometimes these polyester fibers are made from PET Chips or from Polyester waste from recycled post-consumer PET bottle flakes. The ones which are produced directly from PTA and MEG or PET Chips are known as Virgin PSF and the ones which are made from recycled PET Flakes are called Recycled PSF.
Polyester staple fibers are mainly used as fillings in cushions and sofa. Besides filling, polyester staple fibers are also spun into polyester yarns which are further knitted or woven into polyester fabrics. There are mainly two categories of PSF:
• Solid Polyester staple fiber
• Hollow Polyester staple fiber: This type of polyester staple fibers have properties like Conjugated, Siliconized, Slick, and Dry PSF
Considering the luster, PSF can be categorized into Semi Dull and Bright staple fibers.