Showing the left and right Senna knots and the Ghiordes knot both before and after the trimming of the pile
YOUTHFUL WEAVERS
In many cases the head weaver sings these symbols for the benefit of the other weavers. Among the Nomads the design is frequently kept in the brain, or roughly drawn on paper or in the sand. If they have another rug as a model they get the right design by simply counting on the back the number of knots of every color in each row. Beginning at the bottom and working towards the right, the wool yarn, which goes to form the pile, is looped around the warp threads by the aid of blunt pointed needles and then tied in such a way that by each knotting two of the warp threads are bound. When the Turkish knot is used, these two threads are bound side by side. When the Persian knot is used, if tied tightly, one is bound in front of the other. This process is repeated along the line with the proper colors required by the patterns and after each row of knots one or more weft threads are passed through between the warp threads and then beaten down with a sort of comb, the teeth of which pass between the warp threads. The pile is then trimmed off with the scissors to the desired length. The Caucasians and Kurds, as a rule, leave a long pile, while the Turkomans and Persians clip theirs quite short. Close trimming brings out more minutely the color variations. The number of knots to the square inch is determined by the closeness of the warp threads and the number of weft threads thrown across after each row, also by the thickness of these threads. The tighter and closer the knots are tied the more perpendicular the pile and more durable the fabric. In coarse fabrics, like the Kazak, there are usually four or five weft threads between each row of knots. In such fabrics the rows of pile yarn overlap, thus giving it ample opportunity to untwist and become more lustrous. This is why the loosely woven, long naped rugs have more sheen than do the tightly woven short naped ones. Uneven trimming of the pile or unskilled use of the comb will produce unevenness in the completed rug.
A Wooden Comb.
The fewer and the lighter the weft threads are, the more flexible is the rug. The great depth of pile is also a good feature in certain rugs, as the heavier the fabric is the better it will lie. Stronger warp threads are usually put on each side to strengthen and give better support to the weft and sometimes both warp and weft are dyed, either in toto or at the ends only, in order to give a colored webbing to the finished product.
