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Concept
Knotted-pile carpet
Summary
A knotted-pile carpet is a carpet containing raised surfaces, or piles, from the cut off ends of knots woven between the warp and weft. The Ghiordes/Turkish knot and the Senneh/Persian knot, typical of Anatolian carpets and Persian carpets, are the two primary knots. A flat or tapestry woven carpet, without pile, is a kilim. A pile carpet is influenced by width and number of warp and weft, pile height, knots used, and knot density.
"The structural weft threads alternate with supplementary weft that rises from the surface of the weave at a perpendicular angle. This supplementary weft is attached to the warp by one of three knots... to form the pile or nap of the carpet." Knots are tied in rows, one to each pair of warp threads, which may then be pushed down to make the rug more solid: "the interwoven warp and weft threads form the carpet's foundation, and the design comes from the rows of knots." "In the knotted-pile...the arrangement of rows of weft is the dominant consideration."
Diagonal, or offset, knotting has knots in successive rows occupy alternate pairs of warps. This feature allows for changes from one half knot to the next, and creates diagonal pattern lines at different angles. It is sometimes found in Kurdish or Turkmen rugs, particularly in Yomuds. It is mostly tied symmetrically.
The Ghiordes knot, symmetrical knot or Turkish knot is one of the two most-used knots employed in knotted-pile carpets. In the Ghiordes knot, the colored weft yarn passes over the two warp yarns, and is pulled through between them and then cut to form the pile. The Ghiordes knot has a symmetrical structure. The Ghiordes knot is the knot used in the oldest surviving pile carpets, the fragments found in Pazyryk kurgan burial mounds, in the Altai of Central Asia. The Ghiordes knot is also used in Turkeywork textiles of the Early Modern period.
To tie a Ghiordes knot, the yarn is passed between two adjacent warps, brought back under one, wrapped around both forming a collar, then pulled through the center so that both ends emerge between the warps.
Official source
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