Polypropylene Air-Textured Yarn (PP ATY) is a type of polypropylene (PP) fiber processed through high-pressure air-jet texturing technology. Utilizing air-jet technology, it transforms originally smooth PP filaments into a permanent 3D crimped structure, endowing the yarn with bulkiness, softness and high elasticity while retaining PP's inherent advantages of lightweight, corrosion resistance and hydrophobicity.