# Textile Calculation

Problems and solutions of textile

## Different Formula for Yarn Count Calculation

Different Formula for Yarn Count Calculation
S. M. Hossen Uzzal
B.Sc. in Textile Technology
Noakhali Textile Engineering College
Email: uhossen@gmail.com

Yarn Count:
Count is a number which indicates the mass per unit length or the length per unit mass of yarn ……… According to Textile Institute.
Types of Yarn Count:
Yarn counts are two types.
1. Indirect system
2. Direct system
1. Indirect Count:
The count of yarn expresses the no. of length per units in one weight unit. Higher the count, finer the yarn. This system is generally used for cotton, worsted, linen etc.

Indirect count:

L × w
N = ……………
W × l

Where,

W = The weight of the sample

w = The unit weight of the system

L = The length of the sample

l = The unit length of the sample

2. Direct Count System:
The count of yarn expresses the no. of weight units in one length unit. Higher the count, coarser the yarn. This system is generally used for synthetic fiber, jute, silk etc.

Direct yarn count:

W × l
N = ……………..
w × L

Where,
N = The yarn number or count

W = The weight of the sample

L = The length of the sample

l = The unit of length of the system