Direct count system|Tex|Denier|Decitex|Millitex|Ktex|Jute count

 

Direct Count System

In this system, the count of the yarn is the number of units of weight per unit length of yarn. This system is mostly used for silk, jute, etc.

We can work in this system by following the categories;

1. Tex
2. Denier
3. Decitex
4. Millitex
5.  Ktex
6. Jute Count

 Tex

It can be defined as the weight present in 1000 meters of yarn in grams, where the length of the yarn is fixed. It means that, for example, if there is 1000 meters of yarn and it has a weight of 20 grams, then the yarn count will be 20 tex because tex refers to the weight in grams of a unit length.

Here is the equation for determining the yarn count in Tex;

                              Weight in grams

          Tex =....................................................                                                

                             Length in 1000 meters

                       Sample weight in gm * Unit length (1000m)

          Tex =..........................................................................

                             Sample length in meters

An extra qualification of the Tex system is that it is known as the universal process of yarn count, which was introduced by the International Standard Organization (ISO) with several textile scientists, technologists, and manufacturers.

 Denier

 It is defined as the weight of a yarn thread in grams, presented in grams per 9000 meters of that yarn. It is just like the Tex system, only has to change the unit length from 1000m to 9000m, and then the equation of denier becomes:;

                        Sample weight in gm * Unit length (9000m)

          Den = .....................................................................

                             Sample length in meters

As an example, we can say about 454 meters of yarn containing 5 grams of weight, then the count in Den will be

                              6 * 9000

          Den   =............................

                               454

                   = 118.9 den

Decitex (dtex)

Weight in grams of 10,000 meters of yarn.

                                       Weight in grams

          Decitex   =...............................................

                                        Length in 10 km

 Millitex (mtex)

Weight in milligrams of 1000 meters of yarn.

Used for very fine yarns (filaments).

 

Ktex

Weight in kilograms of 1000 meters of yarn.

Used for very coarse yarns, like ropes or jute.

 

Jute Count

 The weight of 1 lb of yarn present in 14400 yds (1 spindle) of length of yarn is known as jute count or pounds per spindle.

Formula:                   Length in yards                        1

          Jute Count =................................   X   ..............................

                                       14440                            Weight in lbs

Here, higher jute count = finer yarn (similar to cotton count Ne system).