Patent ID: 7303804

Claim:
A pile fabric for cleaning comprising a woven or knitted base fabric and a plurality of pile yarns woven or knitted into the base fabric, a plurality of portions of the pile yarns being extended from at least one face of the base fabric to form a plurality of cut piles, thereby forming a pile layer, the pile yarns each having a core-in-sheath type composite structure, the core portion of each pile yarn being formed from at least one core-portion forming yarn composed of a plurality of thick fibers having a single fiber thickness of from 5 to 55 dtex, the sheath portion that surrounds the core portion being formed from at least one sheath portion-forming multifilament yarn composed of 100 to 1500 thin filaments having a single filament thickness of from 0.01 to 2.5 dtex, and the cut piles that extend from the base fabric face having a pile length of from 2 to 30 mm.