Patent ID: 8407869

Claim:
A method of making a carpet a back surface of which is formed of a raschel fabric, the method comprising: providing wefts made of inlay-yarns and warps made of chain-stitched yarns, each warp comprising at least one chain-stitched ground yarn and at least one pile yarn, the at least one pile yarn comprising at least two mono-filaments twisted together substantially uniformly along their length; knitting the wefts and the warps to make the raschel fabric in such a manner that at least one pile yarn is chain-stitched around the at least one ground yarn and forms a loop pile standing from one surface of the raschel fabric at every two or more courses along the respective warps so as to avoid having two loop piles in a same course on two adjacent warps, the at least two mono-filaments being twisted together at least one time along each of the loop piles; and performing one of following steps (a) and (b) before performing the other: (a) fixing the raschel fabric to the carpet so that a surface of the raschel fabric opposite to the one surface thereof from which the loop piles stand faces the back surface of the carpet; and (b) cutting each loop pile near the top thereof to form cut piles so that in each of the cut piles, the at least two mono-filaments are at least partially untwisted and extend in randomly inclined directions from the raschel fabric.