Flow Chart of Polyester Filament Yarn (PFY)

Polyester filament yarn:

Polyester filament yarn (PFY) is a long chain or synthetic polymer composed of an ester of a substituted aromatic carboxylic acid such as terephthalic acid. It’s manufactured in a wide range of deniers and properties to suit virtually all textile requirements. A flowchart of polyester filament yarn is given below.

Polyester Filament Yarn

Flow Chart of Polyester Filament Yarn (PFY)

Prepared Melt

15 Mtr Booster Pump

4-Way Valve

Manifol Line

Melt Spinning





Finish Guide




Main Intermingling



Polyester Filament Yarn has been one of the good textile products in more demand. Because of its malleable capacity. Somewhat oriented tow or partially oriented yarn is made by winding the filament accepting cylinder winds at a speed marginally higher than the speed of expulsion. Filaments from a huge number of spinning positions are gathered to form a tow, which can later be cut into staples.

If the fiber is to be utilized as constant fiber yarn, the filaments are wound onto metal barrels, paper tubes, or bobbins. The diameter or fineness of spun yarn, filament yarn, or monofilament is assigned by the term denier that is the weight in grams of 9,000 meters of yarn or filament. Yarns for apparel and home furniture usually have deniers ranging from 80 to 160.

Polyester fiber spinning and drawing tools can usually be utilized to deliver other melt-spun fibers for example nylon 6 and nylon 66, with a generally minor change. Waste polyester polymer or fiber is sold, reprocessed, consumed, or covered depending generally on the purity. Some of the main licensors of polyester fiber technology are Zimmer, DuPont/Chemtex, Inventa, Karl-Fischer, and NOY. Polyester fibers are delivered by expelling liquid polyethylene terephthalate (PET) through a metal plate or thimble with fine opening holes called a spinnerette (“spinning”).

Author of this Article:
Mustaque Ahammed Mamun
Quality Assurance Officer,
Lamisa Spinning Ltd. Tongi, Gazipur 
Cell: +8801723300703
Email: [email protected]

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