Yarn Count: Definition and Types

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.”

What is yarn count

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.

                        Indirect yarn count            
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.

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.

Direct Count

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.

English System Count Formula

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

Metric Count Formula

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

Worsted Yarn Count

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

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

Denier yarn count formula

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

Pound per spindle count formula

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He is Abu Sayed, the founder of the blog site Textile Apex. He is a Textile Engineer having eight years plus practical experience in the Textile and Clothing industries. With a deep love for fashion and a keen eye for detail, he combines his creative flair with extensive knowledge to offer insightful and engaging content to his readers.
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