Created through the wringing of individual threads of all known raw materials. The spinning process of staple fibers is: - the eventual cleaning or washing (e.g. wool) - the ordering (individual threads are placed in parallel) - the stretching (depending on the required yarn strength) and - the actual spinning (twisting)
The quality of the spun yarn depends on the - quality and type of the raw material used - length of the threads (the longer, the more uniform and durable the yarn is) - fineness of the threads (the finer, the more uniform, lighter, thicker, finer and smoother the yarn is) - twisting (lower, loose twisting results in softer, more voluminous, absorbable but less durable, and the other way round)
To determine the fineness (yarn strength), one uses a measuring system (e.g. Nm) or a weighting system (e.g. den / tex I dtex).
Nm The so-called metric number (or even number metric) means length in meters per 1 gram, e.g. nm 55 = 55 meters = 1 gram.
den The so-called titration system (den = Titre) always the same length = 9000 m and the weight in grams, e. g. 20 den = 20 grams with 9000 m yarn length.
Tex “ Modern“ weighting system I our common decimal system customized with regard to 1000 m and grams, e.g. 20 tex = 20 grams = 1000 meters.
Dtex (decitex) - for chemical continuous yarn and chemical staple fibers 1/10 of tex = grams per 10,000 m, e.g. 20 dtex 20 grams = 10,000 meters.
