Synthetic fiber. Seventy percent of synthetic fibers are classified as either polyesters or polyamides. Winfield and Cickson of the Caloco Printer’s Association introduced the first polyester fiber in 1941; in 1963 DuPont launched Dralon. Polyester fibers are crease resistant, quick drying and keep their shape. They are resistant to chemicals, solvents, and microorganisms and absorb little moisture. They add shine, strength, and drape to wool, silk and cotton. They just need special treatment to allow them to be dyed, and to make them breathable and moisture repellent.