The theory of producing fancy yarn by fancy twisting machine is introduced in this paper. Besides, the structure, classification and winding of the fancy yarn is analysed.

Thearticle introduces the principle and methods of producing such yarn on ring fancy twister and hollow spindle fancy yarn spinning and twisting machine, and it also gives some tips onthe operation.

The utility model relates to a textile machine, in particular to a fancy twisted yarn spindle with a false twisting hollow spindle.