Method for producing a fiber-spun yarn

A process for making a fiber-spun yarn of the type comprising an internal core formed of discontinuous fibers, said core being covered with an external sheath also formed of discontinuous fibers, of the type according to which:

• the fibers forming the inner core are subjected to a momentary false twist operation by a false twist spindle;
• and
• elementary fibers are projected onto the liner core upstream of the false twist spindle by means of a movable guiding surface onto which said elementary fibers are tangentially delivered and which has a tendency to exert a pulling force on a free end of said elementary fibers, said core being moved tangentially with respect to said guiding surface along a direction which converges with the direction in which the fibers are moved by said guiding surface, wherein the improvement comprises:
• drawing both the fibers which will make up the internal core and the fibers which will make up the external sheath with a common drawing system;
• and
• at an outlet of the drawing system, delivering a first part of the drawn fibers onto the movable guiding surface, and directing a second part of said fibers initially away from said movable guiding surface, but then directing said second part of the fibers into tangential contact with the moving guiding surface downstream of the location where the first part of the fibers is delivered to the movable guiding surface, said first part of the fibers thereby forming the external sheath and said second part the internal core.