I described fabric terminologies like warp, weft, selvedge, Grain, fiber, Yarn & Yarn Count and its measurement according to the indirect of Fixed weight system. In this video, I shall explain the measurement of Yarn Count according to the direct of Fixed weight system.
As mentioned in the previous video, there are mainly two systems or ways of yarn count measurement, these are :(a) Indirect System / Fixed weight system ( length per unit mass )(b) Direct system / Fixed length system( mass per unit length ).
The direct system or fixed length system is the yarn count system where the count of a yarn is calculated by measuring the mass of a fixed / definite length. Here, the count number indicates the mass per unit length. So, higher the count, coarser the yarn.
In direct count system, the length of yarn is fixed and the mass of yarn varies according to its fineness. This system is commonly used for polyester, nylon, silk, acrylic & jute yarn. Some of the most commonly used direct systems include :Tex, Denier, Pounds per Spyndle, DeciTex (dtex) MilliTex (mtex) KilloTex (ktex) Tex :The yarn number or count in Tex system is the weight in grams of 1000 m of yarn.
For example, yarn count 30 Tex means that there are 30 grams of yarn per 1000 m or 1 km of that yarn (mass per length) . In other words, yarn count 30 Tex means 1000 m of that yarn will weigh 30 gm. Denier :The yarn number or count in Denier system is the weight in grams of 9000 m of yarn.
For example, yarn count 30 Denier means that there are 30 grams of yarn per 9000 m or 9 km of that yarn. In other words, yarn count 30 Denier means that 9000 m of that yarn will weigh 30 gm. The chart visible on your screen would help you in understanding the other units like Pound per Spyndle / Jute count, DeciTex (dTex), miliTex (mTex), KiloTex (kTex).