Denier
Denier: a weight-per-unit-length measure of any linear material. Officially, it is the numberof unit weights of 0.05 Grams per 450-meter length. This is numerically equal to the weight in grams of 9,000 meters of the material. Denier is a direct numbering system in which the lower numbers represent the finer sizes and the higher numbers the coarser sizes. In the u.S., The denier system is used for numbering filament yarns (except glass), manufactured fiber staple (but not spun yarns), and tow. In most countries outside the u.S., The denier system has been replaced by the tex system. The following denier terms are in use:denier per filament (dpf): the denier of an individual continuous filament or an individualstaple fiber if it were continuous. In filament yarns, it is the yarn denier divided by the number of filaments.Yard denier: the denier of a filament yarn. It is the product of the denier per filament and thenumber of filaments in the yarn.Total denier: the denier of a tow before it is crimped. It is the product of the denier perfilament and the number of filaments in the tow. The total denier after crimping (called crimped total denier) is higher because of the resultant increase in weight per unit length.
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Author of the text: Extract from Textile glossary © 2001, Celanese Acetate LLC
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