How Many Knots Per Square Inch In Persian Rug

A rug can consist of 25 to over 1000 knots per square inch. Whats in a Number.

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Most rugs fall between 100 and 200 KPSI.

How many knots per square inch in persian rug. How To Count Knots in Oriental Rugs. The type of rug knot is the main variation youll see in how hand-knotted rugs are made. Some rugs such as Heriz tribal rugs and lower quality towncity woven rugs fall under 100 knots and over 200 KPSI the rug starts to become fine.

A good rug will last 50 to 100 years. The large majority of Oriental and Persian rug dealers will have a special measuring tool on-hand to that makes the job easier which is essentially a square ruler with a 1-inch. Turkish knots are most common in rugs made in northwestern Iran Kurdistan Azerbaijan and of course Turkey.

Measurements for a rugs knots per inch is usually done by counting the number of knots per square inch on the back of the rug where they can be seen more clearly. This would depend on the type of rug as well as its size. For example 120 line is 120 x120 then divided by 144 or 100 knots per inch.

There can be between 500 and 1000 KSPI knots per square inch in the very finest Persian rugs. However Persian rugs are unarguably beautiful and respected all over the world for this art. Persian rugs come in anywhere from 60 knots per inch to 1000 knots per inch for very expensive almost extinct rugs.

Every single knot is tied by hand. A square inch measurement of a fine rug around 2020 or 2021 400KPSI. Knots Per Square Inch Rug KPSI When a rug begins to approach about 200 knots per inch the weave begins to be considered as fine.

A rugs knot count or knots per square inch KPI is the number of knots woven into it per square inch. This helps explain their longevity. Multiply the two numbers and you will have the knots per square inch measurement or KPSI.

Again a rug with a lower KPSI value would take less time to make as compared to a rug with a higher KPSI. So-called double Bokharas from Pakistan in qualities like 918 1020 1122 and 1224 are different. Note that the knotting in some rugs makes them look like they have twice as many knots horizontally than they actually have.

A rug with 10 knots horizontally and 10 knots vertically will have 100 KPSI. For example a 1618 quality Kashan has 16 X 18 weave or about 288 knots per sq. The inverse knot ratio is also used to compare characteristics.

Since the construction is square you multiply the number of pairs of warps or the line count by itself and divide by 144 for the number of knots per square inch. In Pakistan indicated qualities like 1616 or 1618 for rugs in Persian design represent the number of knots per linear inch across the warp and weft counted in the normal way. The finely woven area rugs may have as many as three or four hundred knots per inch but such a count is considered to be exceptionally and even unusually fine.

To determine knots per square inch KPSI count the number of knots within a one inch vertical and one inch horizontal area then multiply the two numbers. That means it would take a skillful weaver 6480 hours to weave a 912-foot rug with a. Many of the antique rugs in our collection are well over a century old.

A 12x12 rug would have 144 KPSI. The average rug has around 100 knots per square inch. To get a better perspective on the time taken to create a rug a Persian rug.

The Turkish knot also called a Ghiordes knot and the Persian knot also called a Senneh knot. 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. KPSI can also be referred to as knot density.

The finest rug weve seen at Little-Persia was a silk Chinese rug measuring around 2100 KPSI but most high quality silk rugs are 400-800 KPSI. Note that these rugs have strongly offset warps so you will only see one element of the knot on the back of the rug. For example a 1618 quality Kashan has 16 X 18 weave or about 288 knots per sq.

Time it takes to make one rug. There are two main types of knots youll see. A simple way to count knots in an oriental carpet is to lay a quarter on the back of the rug and count the knots along one side both of the width and height of the quarter.

Many traditional hand-knotted Persian rugs use high knots per square inch. Note that these rugs have strongly offset warps so you will only see one element of the knot on the back of the rug. A skillful weaver is able to tie a knot in about ten seconds meaning 6 knots per minute or 360 knots per hour.

It is a common misconception that if the knot count increases the quality of a rug increases. Density may vary from 25 to over 1000 kpsi or 4 to over 155 kpsc where 80 kpsi is poor quality 120 to 330 kpsi medium to good and 330 kpsi is very good quality. Buyers should be wary of jufti knots.

Most oriental rugs range from 77 knot count to 1616 with 99 being a popular average. 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. Number of knots per unit area is directly proportional to the quality of carpet.

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