PURPOSE: To enable the changing of materials or colors between the obverse and reverse faces of pile or the unification of the colors of an obverse design and a reverse design in a single-piece warp-knit blanket.

CONSTITUTION: When a double layered knit material is produced, pulling yarns for pile yarns of an identical kind are threaded in the reverse side of a pair of base cloths. The spanned pile yarns are cut at their centers to produce a pair of single-piled woven cloths from the double layered knit material. The pulling yarn 7 of each of the single-piled cloth 8 is pulled out and the pile yarns of the identical kind are pulled out to the reverse side 5 of the base cloth.