Indirect count system|Cotton Count/English Count|Metric Count|Worsted count

 

Indirect Count System

 In this system, the count is the number of units of length per unit weight of yarn. In this case, yarn fineness is inverse to the yarn count; it means that the lower the yarn count, the finer the yarn. By this system, we can measure the count of cotton, wool, worsted, linen, etc.

This also has some sub-systems as follows;

          ·        Cotton Count/English Count

·        Metric Count &

·        Worsted count.

 

 ·        Cotton Count

Actually, the term cotton count can be defined as the number of hanks of 840 yds presented in 1 lb of yarn. This is also known as the British or English count. It is denoted by Ne.

The equation of cotton count measurement is as follows;

 

                                   Length in hanks of 840 yds

Count, Ne =   ...................................................                                                               

                                                Weight in lbs

                                  Sample length in yds * unit weight

 
 Ne =................................................................

                                 Sample weight in lbs * unit length

 Now, for example, if we consider a yarn sample of 2000 yds with a weight of 0.08 lbs, then the cotton count will be

                                       2000 * 1

..................................          Count, Ne =

                                      0.08 * 840

                          =            29.7 Ne

Metric Count

Metric count expresses the 1000 gm or 1 kg weight of yarn that can contain how many hanks of 1000 meters. It is denoted by Nm.

The formula for measuring metric count is;

                                                 Sample length in meters * unit weight     

..........................................................................................          Metric Count, Nm =

                                                Sample weight in kg * unit length

For example, if we consider a yarn of 2000m weighing 450g. So the count in the metric system will be

                                                2000 * 1

          Metric Count, Nm =............................

                                                0.45 * 1000

                                       =   4.4 Nm

 Worsted Count

 The number of hanks of 560 yds presented in 1 lb weight of yarn is known as worsted count, which is widely used for yarn composed of wool.