Method and weaving loom for producing a leno ground fabric
AssigneeLindauer Dornier Gesellschaft mbH
InventorsAdnan Wahhoud, Peter Czura, Josef Hehle
Life of this patent
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Abstract
A leno ground fabric is produced over the entire weaving width of a loom by using two heald frames each having a length corresponding to the weaving width. The heald frames are equipped with a multitude of lifting healds or heddles and with a multitude of half healds or heddles that move the leno warp thread and the ground warp threads for the shed formation over the entire loom width.
Claims16
A method for producing a leno ground fabric having a given weaving width, said method comprising the following steps:
- a) providing a weaving loom with at least two leno heald frame s each having a frame length corresponding to said weaving width and including a multitude of lifting healds or heddles cooperating with half healds or heddles for forming leno loom sheds extending entirely across said weaving width;
- b) supplying to said healds first warps for forming leno warp threads;
- c) supplying to said healds second warps for forming ground warp threads;
- d) operating said lifting healds and s aid half healds for moving said leno warp threads transversely and up and down so that each leno warp thread alternately crosses a respective ground warp thread from one side of said respective warp thread to the opposite side of said respective warp thread and back again, and for lifting said ground warp threads vertically up and down for repeatedly forming warp sheds, and
- e) inserting at least one weft thread into each of said warp sheds for weaving said leno ground fabric over the entire weaving width of said weaving loom.
A weaving loom for producing a leno ground fabric having a given weaving width, said weaving loom comprising:
- a leno thread supply first warp beam, means for driving said first warp beam, a ground thread supply second warp beam, means for driving said second warp beam, at least two heald frames including means for operating said heald frames, said heald frames having a length corresponding to said weaving width, said heald frames comprising a multitude of lifting healds or heddles and half healds or heddles cooperating with said lifting heddles for forming leno loom sheds extending entirely across said weaving width, a driven sley and a reed positioned for cooperation with said heald frame, weft insertion means positioned for inserting at least one weft thread into each of said leno loom sheds, sensors for sensing an actual warp tension in said leno warp threads and in said ground warp threads, and a central loom control including at least one comparator for comparing output signal values from said sensors with rated warp tension signal values to provide warp tension control signals.
Dependencies are inferred from the claim text.