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Rug Density
The rug's density is shows the number of knots on each unit of production. The more knots are tied on a quarter of a meter of a rug, the more they are smaller, and the thinner and better picture and dense rug.
To determine the density of a rug, you should consider the number of nodes in a given unit of length in the direction of first base and to multiply the two numbers. In Russia it is accepted measure the density of Persian carpets in knots per square meter. As Persian rug at the square, hundreds of thousands of door hinges, better to count on a minor-for example, 10 to 10 centimeters, with the result multiplied by 100.
A common measure density of a rug as knots per square inch. In one square meter of 1550 square inches, so to know the number of nodes square meter of the rug, it can be multiplied the number of nodes in the square inch to 1550.
For handmade carpets Chinese used a different rate-the number of lines (rows) on foot carpet (eg, "80 lines, 120 lines, etc.). The number of "lines" is the number of nodes on one foot (30.47 cm). In Chinese carpets number of nodes per unit length in longitudinal and lateral direction the same, so that the transfer of "lines" in the conventional indicators simple. It is built in "line" in the box and multiplied by 10.76 (it is so square feet in square metres). For example, 90 lines are running 90 x 76 = 87,156 knots per square meters.
Density is an important determinant of quality, and, accordingly, and the price of a rug, but not always. Among the exceptions of nomadic carpets or village shops. These rugs are estimated to other standards than rugs set up in urban manufacturing. From nomadic carpets used a simple looms, the figure is not a pattern established professional artist, and from memory, often used coarser materials (yarn). Moreover, the higher the density of the rug, the more time spent on its construction. Rugs, produced by nomadic, often have density of 40000 150000 nodes per square meter. These rugs are not valued density and naive art and tradition.
But for urban density of the rug - one of the most important indicators of quality and price. Manufacturing have better communications equipment (unless, of course, you can say so on the machines on which products performed entirely by hand), rugs befit created by skilled artists detailed drawings. Rug density is essential for creating a complex pattern of thin, in fact, the more door-to more subtle details can portray. Rugs made urban manufactures may density of a million and above knots per square meter. Rug's density of 1.5 million units more rare and expensive. Often they involve silk basis.
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