Last updated on August 4th, 2023 at 01:21 am

Yarn Count is an integral part of the Textile industry. The spinning mills or weaving mills can not run without this term. Because product costing fully depends on it. So, it is the most important term in the Textile sector. In this article we will learn the details about it.

**Definition of Yarn Count**

The yarn count is a numerical expression which defines its fineness or coarseness. It also expresses weather the yarn is thick or thin. A definition is given by the textile institute – “Count is a number which indicates the mass per unit length or the length per unit mass of yarn.”

**Types of Yarn Count**

**–** Indirect system- English, Metric, Worsted.

**–** Direct system- Tex, Denier, Lbs/Spindle.

**Indirect Count**

The count of yarn expresses the number of length units in one weight unit. Thus higher the count, finer the yarn. The system is generally used for cotton, worsted, linen (wet spun), etc.

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.

**Direct Count**

The count of yarn expresses the no. of weight units in one length unit. Thus higher the count, coarser the yarn. The system is generally used for synthetic fibre, jute, silk, etc.

Where,

N = The yarn number or, count.

W = The weight of the sample.

w = The unit weight of the sample.

L = The length of the sample.

l = The unit length of the sample.

**In Details**

**English system:** It is defined as the number of hanks (840 yds) per pound. count.

**Metric system:** It is defined as the number of hanks (1000m) per kg.

**Worsted system:** It is defined as the number of hanks (540yds) per pound.

**Tex system or Lea count:** It is defined as the weight in grams of 1000 m.

**Denier:** The number or, count in the denier system is the weight in grams of 9000 m.

**Pounds per spindle (Jute system):** Count in the pound per spindle system is the weight in pounds of 14400 yards of yarn.

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