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Pierce yarn diameter

Updated: Jan 8, 2021

The formula of the yarn diameter developed by pierce. He concluded that the specific volume of cotton yarn under moderate pressure is 1.1 cm/gm.

Yarn is circular in c/s according to pierce.


Let count of yarn is Ctex

Vy be the specific volume of yarn in cc/gm

d be the yarn diameter in cm

l be the length of yarn in cm


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