## Yarn count

It is a numerical expression that defines yarn's fineness or coarseness. It also expresses whether the yarn is thick or thin. It is also known as the linear density of the yarn. According to the textile institute, yarn count indicates the length per unit weight or weight per unit length of the yarn.

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## Types of Yarn count

- Indirect system
- Direct system

Yarn |

## Indirect system

## Calculation Formula of Indirect System

Indirect Count Calculation Formula©Textile Pad |

**English Count (Ne):**Number of hanks of 840 yards that weigh 1 pound.

Ne = {1 pound / 840 yards} ✕ {Sample Length (L) / Sample Weight (W)}

**Metric Count (Nm):**Number of hanks of 1000 meters that weigh 1 kg.

Nm = {1 kg / 1000 meters} ✕ {Sample Length (L) / Sample Weight (W)}

**French Count (Nf):**Number of hanks of 1000 meters that weigh 500 gm.

Nf = {500 gm / 1000 meters} ✕ {Sample Length (L) / Sample Weight (W)}

**Worsted count (Nw):**Number of hanks of 560 yards that weigh 1 pound.

## Direct System

In this system, the length unit is fixed.

## Calculation Formula of Direct System

Direct Count Calculation Formula©Textile Pad |

**Tex Count:**Weight of yarn in gm present in 1000 meters.

Tex Count = {1000 meters / 1 gm} ✕ {Sample Weight (W) / Sample Length (L)}

**Denier Count:**Weight of yarn in gm present in 9000 meters.

Denier Count = {9000 meters / 1 gm} ✕ {Sample Weight (W) / Sample Length (L)}

**Pound/Spindle Count:**Number of jute yarn of 1 pound presents in 14400 yards.

Pound/Spindle Count = {14400 yards / 1 pound} ✕ {Sample Weight (W) / Sample Length (L)}

**Problem Solving**

**Problem:** The weight of 100 km yarn is 1 kg. Find out the yarn count in Tex, Denier, and Jute Count?

__Solve:__

*Given,*

Sample Length (L) = 100 km = (100 ✕ 1000) meters

= (1000 meters / 1 gm) ✕ {1000 gm / (100 ✕ 1000) meters} = 10 Tex

= (9000 meters / 1 gm) ✕ {1000 gm / (100 ✕ 1000) meters} = 90 Denier