Conversion Method of Aramid Yarn Density in Optical Cable

Aramid fiber is the most used strength component for making optical cables. We will see that the specification of aramid fiber is expressed by linear density, and the unit is D, Tex, Dtex.

D: Denier, refers to the weight in grams of a 9000m long fiber at a given moisture regain.

Tex: Tex, refers to the weight in grams of 10,000-meter-long fibers at a given moisture regain.

Dtex: Defensive Tex, refers to the weight in grams of 1000-meter-long fibers at a given moisture regain.

What needs to be explained here is that the linear density of the aramid yarn is divided into the linear density under the actual moisture resurgence and the linear density after the sample is dried. Keep this prerequisite in mind when making comparisons.

The conversion of the three units is as follows:

Tex=D/9=10Dtex

The expression method of water-blocking yarn is a little different from that of aramid fiber, which is expressed by yarn count. For example ZS-6.0 1500D, ZS-3.0 3000D. Yarn count: the length in meters of 1 gram of yarn (silk).

Example: ZS-6.0 1500D

The yarn count is: 9000/1500=6.0