The great increase in demand of “Seamless” tubular products made out of POLYESTER yarn required the development of a specific hot air pre.setting machine for this type of material but also capable of processing any kind of fiber. Precision in high temperature control required by this material, by hot air tunnel, allows an appropriate heat setting of this yarn. Revolution, with its distinctive and revolutionary features, gives the fabric a high level of softness, stability and a superior presentation,finally solving all problems concerning the side lines, shading and curved edges.