Crepe Yarn

Crepe Yarn
CREPE YARN
Specially hard-twisted yams, containing from 30 to 70 turns per inch and produced in singles and doubled. The usual range is 40's to 100's single, 2/80's to 2/200's doubled. The yarns are used for voiles, crepe-de-Chines and fabrics where the aim is to produce crinkles through the strong tendency of the yarns to contract in length. In cotton, yams are made up to six- or nine-fold for special purposes. Crepe yarns are also produced in wool, silk and rayon. An official definition states : Silk, rayon, cotton or wool threads may be given a twist of a specific number of turns per inch. The thread contracts in the twisting, and the evenness of the twist, the type of twist, and the number of turns determines to a definite degree the character of the face of the texture for which the twisted yarn is used. The twist in the yam is set by a process of steaming. The twist co-incidently increases the strength of a thread to a limited extent. The twist may have a bearing upon the lustre of woven or knitted fabrics and upon the capacity of dye penetration and absorption. A crepe yarn may consist of a single thread twisted one way, or of several threads joined by throwing into one thread by a combination of twists.

Dictionary of the English textile terms. 2014.

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