210 Knots Per Square Inch Carpet
Inch of the rug.
210 knots per square inch carpet. Buyers should be wary of jufti knots. That means it would take a skillful weaver 6 480 hours to weave a 9 12 foot rug with a density of 150 knots per square inch. To tie a carpet is a time consuming work a 300x400 cm large carpet with a knot density of or 500 000 knots per square metre takes about 600 workdays. Example of a senneh knot a rug employing the senneh knot with 16 knots along an inch on the vertical axes and 16 knots along an inch on the horizontal axes has 256 knots per square inch.
A skillful weaver is able to tie a knot in about ten seconds meaning 6 knots per minute or 360 knots per hour. The knot density is the number of knots per square metre. The two most common knots are called symmetrical knot and asymmetrical knot. A 12x12 rug would have 144 kpsi.
The carpet shown in the images above therefore has a total of 242 knots per square inch 11 22 or 11x22 using the ghiordes weave. A rug can consist of 25 to over 1 000 knots per square inch. However because of the time it takes for the artisan to individually wrap every knot and the amount of wool used in the process knot count per square inch kspi is one of the largest determinants of value. This is typically measured by counting the knots on the back of a rug across a vertical and horizontal inch and multiplying the two numbers.
Kpsi can also be referred to as knot density. These are false knots which are tied in the same way as true knots but instead of one knot utilizing two warp threads it utilizes four. The main measurement is kpsi knots per square inch similar to the pixels on a tv or computer screen the more pixel or knots the clearer and sharper the image. Below is a basic chart converting raj to knots per square inch.
Knots per square inch explained how knots per inch is counted. A skilled weaver can accomplish. These knots also have different names which will be explained in the following pages. Most but not all of the best rugs have a square knot construction or the same number of knots in both width and length.
Multiply the number of knots in each direction with each other and then multiply the result with 100. Knot density is a traditional measure for quality of handmade or knotted pile carpets it refers to the number of knots or knot count per unit of surface area typically either per square inch kpsi or per square centimeter kpsc but also per decimeter or meter kpsd or kpsm number of knots per unit area is directly proportional to the quality of carpet. It is obtained by counting the knots on the backside of the carpet 10 cm in the direction of the warp and 10 cm in the direction of the weft. There can be between 500 and 1000 kspi knots per square inch in the very finest persian rugs.
Different varieties of oriental rugs use different types of knotting techniques as well as different knots per square inch which ultimately determine the quality of the finished product.