Denier (measure)
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Denier is a unit of measure for the linear mass density of fibers. Denier is defined as the mass in grams per 9 000 meters.
One can distinguish between Filament and Total denier. Both are defined as above but the first only relates to a single filament of fiber (also commonly known as Denier per Filament or D.P.F) whereas the second relates to an agglomeration of filaments.
The following relationship applies to straight, uniform filaments:
- D.P.F. = TotalDenier / QuantityofUniformFilaments
The denier system of measurement is used on two and single filament fibers. Some common calculations are as follows:
| 1 denier | = 1 gram per 9 000 meters |
| = 0.05 grams per 450 meters (1/20th of above) |
This unit of measure is not in the International System of Units: dtex should be used instead.
[edit] Examples
- A fiber is generally considered a microfiber if it is 1 denier or less.
- A 1-denier polyester fiber has a diameter of about 10 micrometres.
- Denier is used as the measure of density of weave in tights and pantyhose, which defines their opaqueness.
[edit] See also
[edit] External links
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