PURPOSE: To prevent whitening phenomena (white looking) of a pile surface by providing the surface of polyester pile cloth with an organopolysiloxane, water-soluble polyacrylamide resin and methylol melamine resin.
CONSTITUTION: The surface of pile comprising polyester fiber is provided with 0.1-5wt.% calculated as resin content of an aqueous solution comprising (A) an organopolysiloxane, especially preferably organopolysiloxane containing hydroxyl groups at both ends and amino group at a side chain, (B) a water-soluble polyacrylamide resin and (C) a methylol melamine resin, especially hexamethylol melamine resin, dried, then treated with hot air at 110-200°C and the surface of pile is coated to actualize darkening in color and to prevent whitening phenomena. The blending ratio of the three components is preferably 10-70wt.% component A, 10-50wt% component B and 20-60wt.% component C.