Abstract: A process for the production of a face-to-face carpet fabric on a double pile loom having at least two filling insertion planes, uses filling yarns, stuffer warp yarns, and chain warp yarns to form two back cloths. The filling yarns are inserted into each back cloth as back fillings and inner fillings. Groups of chain warp yarns, individual yarns of which between their respective last binding to an inner filling and the succeeding last binding to a back filling form a holding length, are assigned to each back cloth. All patterning pile loops are stretched over back fillings. and the pattern repeat of a group of chain warp yarns is selected to be greater than six. The holding lengths of a chain warp yarn extend over at least three filling insertion cycles.

Abstract: The invention relates to a process for the production of a face-to-face carpet fabric on a double pile loom having at least two filling insertion planes, using filling yarns (SR, SI), stuffer warp yarns (FK), and chain warp yarns (B) to form the two back cloths (OW, UW), whereby the filling yarns (SR, SI) are inserted into each back cloth as back fillings (SR) and inner fillings (SI) and whereby groups of chain warp yarns (B) whose individual yarns between their respective last binding to an inner filling (SI) and the succeeding last binding to a back filling (SR) form a holding length (Y), are assigned to each back cloth. With the object of achieving an always vertical tie-in of the pile loops in the back cloth, a high pile density, and a saving of chain warp yarns, all patterning pile loops (PM) are stretched over back fillings (SR) and the pattern repeat (R) of a group of chain warp yarns (B) is selected to be greater than six.