Spun yarn definition and its type depends on some criteria of fiber. Here we are giving a brief description of spun yarn and it types.
Textile yarn spun from staple-length fiber, a little rope or stuff shaped of two or additional rope yarns loosely twisted and used for seizings particularly on board ship is named small stuff. Spun yarn may be a yarn that is fabricated from short, staple fibers closely plain-woven along. it’s sometimes terribly fuzzy and tends to figure best. Spun yarns are a unit made of the staple fibres. That area unit twisted along. Spun yarns area characterized by sticking fibre ends. Spun yarns strength depends on the cohesive or the clinging power of the fibre and on the points of contact ensuing on pressure of the twist. The larger the amount of points of contact, the larger is that the resistance to the fibre slippage among the yarn. They are suited to consumer goods cloth during which permeability, bulk, heat or cotton like or wool like textures is desired. Once worn fibre ends hold the yarns removed from shut contact from the skin, so materials fabricated from small stuff is softer on a hot wet day than a cloth of sleek filament yarns. sticking ends contribute to a boring fuzzy look, to the shedding of lit and to the formation of pills on the surface of the material. They additionally get dirted promptly, small stuff may be given differing types of twist supported the top use as off-guard twist.
Types of Spun Yarn
Napping twist: this kind of yarn is termed as low twist, yarn. It has 2.3 turns per in. such low twist ends up in lofty yarns which permit for off-guard of cloth. so brushed materials area unit large and provides heat once employed in clothes.
Average Twist: it’s ofttimes used for yarns fabricated from staple fibres and is extremely rarely used for filament yarns. the number of twist that provides warp yarns most strength is cited as normal warp twist.
Hard twist (Voile twist): once yarns area unit given 30-40 turns per in., they’re known as hard/voile twisted yarns. The hardness of the yarn results once twist brings fibres nearer along and a lot of compact.
Crepe Yearns: Crepe yarns area unit fabricated from with either staple or filament fibre. Crepe could be a French sense crinkle. they’re created with a high variety of turns per in. (40-80) inserted in yarns. This makes the yarn therefore spirited and kinky that the twist should be set before it may be plain-woven or unwoven filament crepe yarns area unit employed in materials like cloth and chiffon.