Process for obtaining a woven cloth
AssigneeCortex, LLC
InventorClaude Corbiere
Life of this patent
Estimating the term…
Abstract
The invention concerns a method for obtaining a woven fabric which consists in: continuously unwinding from a single warp beam, a set of parallel warp yarns; passing said set on a whip-roll; forming a shed using held means, said shed being defined in the forward movement direction of the warp, at the input through an opening stitch of the shed, and on the other side through a face stitch; inserting a weft yarn in the shed in the proximity of the face stitch to form a fabric; and finally uniformly pulling and batching the resulting fabric; method which consists, in the proximity of the shed opening stitch, in heating the warp yarns, and then cooling said warp yarns in the shed before they reach the held means, characterized in that only part (34) of the warp yarns is heated.
Claims15
A process for obtaining a woven cloth in which
- a sheet of parallel warp yarns (3) is continuously unwound from a single warp beam (1);
- said sheet is made to pass over a back-rest roller (4);
- a shed (9) is formed by means of healds (7, 8), said shed being defined, in the direction of advance of the warp, at the entrance of the shed by an opening point (15) and on the other side by a fell point (10);
- a weft yarn (16) is inserted into the shed in the vicinity of the fell point (10) in order to form a cloth;
- and
- finally, the cloth thus formed is pulled uniformly and wound up;
- and in which, in the vicinity of the opening point of the shed a heating operation is carried out on the warp yarns (3) and then said warp yarns are cooled in the shed before they reach the healds (7, 8), characterized in that the heating operation is carried out only on a portion of the warp yarns.
Dependencies are inferred from the claim text.