Twisted polyester yarn is a type of yarn that is made by twisting two or more polyester yarns together. The twisting process combines the individual yarns into a single, stronger yarn that has increased durability and resistance to abrasion.

Twisted polyester yarn is commonly used in a variety of textile applications, including clothing, home furnishings, and industrial fabrics. It is often used in garments that require strength and durability, such as athletic wear, workwear, and outdoor clothing. It can also be used in upholstery fabrics and carpeting.

The twisting process can be done in several ways, such as S-twist, Z-twist, or a combination of the two. The direction of the twist affects the appearance and properties of the yarn. S-twist yarns have a left-hand twist, while Z-twist yarns have a right-hand twist. The direction of the twist can affect the way the yarn drapes, the way it feels, and the way it behaves during the knitting or weaving process.

Twisted polyester yarn can be produced in a wide range of deniers (thickness) and filament counts (number of individual filaments within the yarn), which allows manufacturers to create yarns that meet specific requirements for strength, texture, and color. It can also be produced in different finishes, such as bright, dull, or semi-dull, which can affect the yarn’s appearance and texture.