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 9000 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. = Total Denier / Total Filaments]
The denier system of measurement is used on tow and single filament fibers. Some common calculations are as follows:
| 1 denier | = 1 gram per 9000 meters |
| = .05 grams per 450 meters (1/20th of above) |
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.
External references
- http://www.numei.com/aboutmicrofiber.htm
- http://www.members.optusnet.com.au/ncrick/converters/mass.html
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