Air-jet, also known as cold fluid, alongside with false-twist and bulk continuous filament (BCF) constitutes the three major yarn texturing processes employed by the textile industry. Texturing imparts bulk to the flat continuous filament yarns, improving the comfort-in wear as well as the cover of the final fabric .Air-jet texturing uses a supersonic (turbulent) cold air flow to produce a deformation mainly in the form of loops, along the overfed filaments of the yarn, surrounding the entangled and rather straight parts of the filaments in the core (main body) of the air-jet textured (bulked) yarn. Air-jet textured yarns resemble spun yarns and enjoy a special surface frictional effect, thanks to the loop form structure, making them suitable for seat coverings, floor covering and a wide range of clothing. Volume, core diameter, overall diameter, average loop length and loop frequency constitute the basic characteristics of an air-jet textured yarn. Although, several
