Pile product

A process for producing a pile product, which comprises mixing shrinkable staple fibers and non-shrinkable staple fibers to form sliver having a sliver strength of 3 g/g/m or more, and weaving or knitting ground fibers and the sliver to form a pile portion of shrinkable staple fibers and non-shrinkable staple fibers on a surface of a ground fabric of said ground fibers, wherein the sliver is obtained by passing preheated tow of shrinkable synthetic fibers through a push-in crimper, fixing the crimp form by drying the tow discharged from a crimper stuffing box of the push-in crimper in a dry heat treating machine while maintaining the density of the tow as filled in the crimper stuffing box, thereby obtaining a crimp tow, cutting the crimp tow, thereby obtaining crimp form-fixed shrinkable staple fibers having a shrinkage percent of 15% or more, having an average fiber length of 15 to 25 mm and containing 1 to 3/inch of secondary crimp, including primary crimps, mixing the crimp form-fixed shrinkable staple fibers and non-shrinkable staple fibers to form sliver containing 20 to 98% by weight of the crimp form-fixed shrinkable fibers, and subjecting the sliver to pile-processing to form a pile portion.