FIBER REINCARNATED: RECYCLE POLYESTER STAPLE FIBER

Polyester Staple fiber (PSF) is a manmade staple fiber made up of PET (Polyethylene Terephthalate) Polymer, which is generally termed as Polyester in common language of the textile industry. Polyester Staple Fiber (PSF) can be made directly from PTA and MEG (Raw Material of PET CHIPS) through a continuous process (CP) plant or from PET CHPS or from the recycling of PET or Polyester waste. Polyester Staple fiber made up from recycling of PET waste is known as Recycle Polyester Staple Fiber (RPSF).

Manufacturing Process of Recycle Polyester Staple Fiber (RPSF)

Recycle Polyester Staple Fiber (RPSF) is being manufactured by recycling PET or Polyester waste. There are two types of recycling process i.e. Mechanical Recycling and Chemical Recycling.

Chemical Recycling:

After sorting, grinding and cleaning of PET waste, PET is chemically converted to the monomer or partially depolymerized to the oligomer. That depolymerized monomer or oligomer is further used in the polymerization process for manufacturing of Polyethylene Terephthalate.

Mechanical Recycling:

Mechanical recycling is a physical process in which there is no change in the basic structure of the polymer. After Sorting, cleaning, cutting, shredding and washing plastic waste is being converted in appropriate granules or Flakes. These Flakes or granules are melted to make a new product by extrusion.

Almost all drinking bottles (mineral water, cold drink, etc) are made up of PET (Polyethylene Terephthalate) and widely available. Today Post-consumer drinking bottles are widely being used for manufacturing of Recycled Polyester Staple Fiber by Mechanical recycling.

A brief process introduction is as follows:

After washing and crushing of Post-consumer bottles, PET bottles are being converted in PET Washed Flakes. Hot Washed PET flakes are being converted in Recycle Polyester Staple Fiber through spinning and drawing process. 

Application of Recycle Polyester Staple Fiber

Being manufactured from PET-based Plastic material, Recycle Polyester Staple fiber is gaining popularity due to its eco-friendliness and use of the same is increasing day by day. Today Recycled Polyester Staple Fiber is widely used for manufacturing of SPURN Yarn, which is being used in different Garments. Apart from conventional textile sector Recycle Polyester Staple Fiber is being used in the manufacturing of nonwoven and technical textile sector i.e. carpets, curtains, filters, geotextiles, automobiles, pillows, toys, cushions, quilts and many more.

Specification of Recycle Polyester Staple Fiber

Recycle Polyester Staple Fiber mainly can be classified into two categories i.e. SOLID and HOLLOW Polyester Staple Fiber. Hollow Polyester Staple Fiber has a different shaped cavity inside the cross-section whereas there is no cavity in solid polyester staple fiber. Solid Polyester Staple Fiber is being mainly used in the spinning sector whereas hollow polyester staple fiber is being used in non-woven and technical textile sectors.

Solid as well as hollow polyester staple fiber can be classified into on the basis of certain properties like denier, cut length, shade (color). Hollow Polyester Staple Fiber can be further classified based on the finish of the fiber i.e. siliconized, conjugated, slick or dry PSF.

Based on different properties, different types of Recycled Polyester Staple Fiber are available at JB ECOTEX LLP, which is as follows: 

TYPE SHADE/COLOR PROPERTIES
SOLID RPSF(UNIT 1) OFF WHITE NATURAL

VANILLA WHITE

MILKY WHITE (OPTICAL WHITE)

DOPE DYED BLACK

Denier: 1.2 D, 1.4D, 3D, 6D, 15DCut Length: 25, 32, 38, 44,51, 61, 76 mmTenacity: 1.2D, 1.4D >= 5.8 gms/denier

Elongation: 25 ± 2%

Crimps: 10 ± 2

Oil Pick Up: 350Kgs per Bale

HOLLOW RPSF(UNIT 2) WHITE NATURAL

DOPE DYED BLACK

Denier: 6.0 D Cut Length: 38, 51, 64, 76, 102 mm

Elongation: 50 ± 5

Tenacity: 3.0 ± 0.5

Hollowness: 17± 2.0

HOLLOW RPSF(UNIT 2) WHITE NATURAL

DOPE DYED BLACK

Denier: 15.0 D Cut Length: 38, 51, 64, 76, 102 mm

Elongation: 50 ± 5

Tenacity: 2.5 ± 0.5

Hollowness: 18 ± 2.0