Chenille yarns has a velvet like appearance. This velvet like appearance is constructed by placing short cut fibers between two yarn strangs. The two yarns are then highly twisted together, clamping the fibers placed between the two yarns. To prevent the fibers from falling out, low melting yarns are sometimes used in the core as well.
Chenille yarns are not to be confused with flocked yarn that consists of one strang of yarn and the flock to be glued on it.