Posted by Marla Mallett on July 27, 1999 at 15:51:19:
In Reply to: Re: Weft ease and a Senneh posted by Wendel Swan on July 27, 1999 at 07:56:25:
I think I've still not been clear about what "warp take-up" means--although I'm not sure that any of you should care!!! But here's a concrete example: If a rug 5 feet long actually required 5'4" of warp there would be 4" lost to "warp take-up." On a balanced-weave fabric there will always be some warp take-up (since both warps and wefts are slightly wavy), while on a weft-faced fabric there will be none or almost none. On a warp-faced fabric there would be considerable take-up (since the wefts are straight and taut, the warps are the only wavy elements), and a weaver who wants a finished fabric of a specific length needs to add a little extra length when preparing her warp.
None of this, of course, has anything to do with the extra warp length needed for tying onto the loom's front beam or for heddles and shed stick space at the other end of the rug.
Since this kind of thing rarely needs to concern non-weavers, it is not something I've gone into in the book, although I have explained how weft-faced fabrics and depressed-warp rug structures are produced. Anyway, just to be clear, "warp take-up" is purely a weaver's concern and is NOT a necessary or appropriate part of any carpet analysis..... How did we get into this anyway!!!?
Marla