The process of texturing yarns for the textile industry involves the transition of partially oriented yarn (POY) through a “texturing machine” where the POY is exposed to heat, air and tension to draw, stretch or elongate the yarn.
A textured yarn is commonly referred to as a Drawn Textured Yarn (DTY).
The texturing of a yarn gives a yarn characteristics that will enable the yarn to be knit or woven. Some yarns require the yarn to have a large amount of stretch. For example, a yarn designed for a sock or hosiery application requires a certain degree of stretch. To accomplish this, the yarn must pass through a heating system on the texturing equipment one time. Some other end uses, for example, narrow fabrics, require a yarn to be a ‘set’ yarn. A set yarn passes through two heating chambers on a texturing machine. In addition, a ‘dead-set’ yarn can be created with there is absolutely no stretch in the yarn at all.
In addition, the processing of yarns through a texturing machine a yarn can be given additional characteristics such as air tacks. Air tacks are commonly referred to as: nips, air entanglement points, with air – they all mean the same thing. Air tacks refer to tack points in a yarn. The end-use will determine if the yarn will have air tacks and if so, how many. Generally, with plied yarns (yarns with more than one parallel ‘end’) will be tacked together to enable the yarn to perform properly.
A textured yarn will generally be made from a synthetic product, such as: filament polyester, filament nylon, and filament polypropylene.