Patent ID: 7337809
Filing Date: 2008-03-04
Classification: D03C,D03D

Abstract:
1. Method for weaving fabrics ( 501 , 502 , 601 , 602 ) on a weaving machine, comprising in successive weft insertion cycles two weft yarns ( 505 , 506 , 605 , 606 ) simultaneously inserted at different weft insertion levels between pile warp yarns ( 520 , 530 , 620 , 630 ) which are positioned with respect to the welt insertion levels by means of a three-position-non-open-shed Jacquard machine, wherein the Jacquard machine is provided to maintain one or several pile warp yarns ( 503 , 504 , 603 , 604 ) in successive operating cycles of the waving machine in an upper and/or a lower position, wherein the said pile warp yams ( 503 , 504 , 603 , 604 ) in their upper or in their lower position are positioned between the welt insertion levels, wherein for face-to-face weaving, at least a first part of the said pile warp yarns ( 503 , 603 ) are positioned in their upper position between the weft insertion levels, and at least a second part ( 504 , 604 ) of the said pile warp yarns are positioned in their lower position between the weft insertion levels, and wherein to form zones ( 511 ) with floating pile across several weft yarns ( 518 ) at the back of the upper fabric ( 501 ), at a first weft the pile warp yarns of the second part ( 503 ) are positioned in a central position which corresponds with a position of the pile warp yarns ( 503 ) above the weft insertion levels, and at a second weft are positioned in an upper position which corresponds with an uppermost position of the pile warp yarns ( 503 ) with respect to the weft insertion levels.