There are two ways of yarn numbering system. Direct system
and indirect system.
Direct System (Denier)
In direct system (fixed length), yarn number wqual to the
weight of yarn in a certain length of yarn (…gram/9000 m = denier, or text = ….
Gram/1000 m). in this system, the higher the number means, the coarse the yarn.
This system is used for filament yarn. Denier system is more popular than tex
system in practice.
Td = weight(gram)/length (9000 m) tex=weight (gram)/length (1000 m)
Indirect system
a.
English cotton system (Ne1)
In English system, yarn
count = number of yarn length ( in hank) which equal to one pounds weight of
yarn. (1 hank = 840 yards; 1 pound (lb) = 453.6 gram)
Ne1 =Length (hank=840 yds)/Weight in pound (453.6 g)
b.
Metric yarn-count system (Nm)
Nm is an internationally used numbering
method for all spun yarn. This standard expresses the length of yarn ( in
Kilometers) per kilogram of weight
Nm=length (km/m)/weight (kg/g)
c.
Worsted Yarn Count system (Ne3)
Ne3 is used for worsted (wool and wool
blend) or wool yarns with longer finger length. The yarn is expressed in the
reverse order such as 1/50. Yarn count= number of yarn length ( in hank=560
yarn) which equal to one pounds weight of yarn. 1 count of worsted wool is
measured by 560 yards in one pound of yarn
Ne3=length (hank=560 yds)/weight in pound (453.6 g)
Ne1 (English sytem ) is more popular in
use than Nm (metric system)
Example ;for filament yarn, normally uses
direct system : Td= denier, or tex. Meanwhile for spun yarn using indirect
system: ne1 for cotton or cotton blended yarns, and Ne3 for worsted yarns. Nm
can be used for all spun yarns
Count Conversion
