Role of Water in Air-Jet Texturing

Abstract

Polyester multifilament yams with different frictional characteristics have been air textured under both dry and wet texturing conditions. Wet textured yams are more stable and have higher bulk, and the surface structure of these yarns shows higher loop frequency, lower loop height, and a higher percentage of protrudes and closed and crossed loops for feeder yams with similar frictional characteristics. For comparable values of dry and wet friction, yams textured after prewetting are far superior in properties than yams textured in the dry state. The study clearly demonstrates that the effect of prewetting is not confined only to the lubricating action of water.