Water-responsive shape memory wool fiber, fabric and textile comprising thereof, and method for preparing the same

A water-responsive, shape-memory wool fabric comprising:

• a plurality of yarns being plied at a first twisting frequency, each of the yarns being prepared by:
• a plurality of natural fibers being processed to remove scales thereon before being spun at a second twisting frequency;
• the plurality of plied yarns being knitted in a knitting pattern followed by setting at a first temperature for a first period of time and then drying thereof at a second temperature for a second period of time such that the resulting fabric possesses varying fiber and yarn diameter and length, and pores actuating according to change in water absorption level by the fabric.