D TEXTILES; PAPER
D02 YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
3/00 Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
D02G3/22 Yarns or threads characterised by constructional features; , e.g. blending, filament/fibre
D02G3/26 with characteristics dependent on the amount or direction of twist