Your Area Rug resource online
Machine-made rugs are not actually knotted. A machine puts the
wool into place, and then is held in place with latex backing. This makes the
back rough to the touch and creates a grid appearance on the back of the rug.
Creating a rug one knot at a time allows the design to be more elaborate and
consequently takes much longer to produce than a machine-made one. The result is
better rug density and a tighter, higher quality of weave. A finely woven rug
will have over 180 hand tied knots per square inch. An experienced rug maker
will be able tie about 800 knots an hour (a 9 x 12 rug takes over 3,500 hours of
labor); this is why they are so expensive to produce.
When looking for a quality hand-knotted rug, inspect the quality of the wool
look at the length, the springiness and the luster of the wool fiber. When
evaluating rug quality the thickness of the rug does not matter. When you flip
over the rug the image of the rug's frontal design should be clear. A rug that
has a design that is less defined on the reverse side has not been as tightly
knotted. Finer knots indicate higher quality.
But even hand-knotted rugs come in a variety of different qualities. One of the
fastest-growing types of rug falls between hand-knotted and machine-made it is
called handgun-tufted. The handgun forces the yarns into a grid, and then the
backs are covered with latex or a fabric backing. This makes the process much
faster than hand knotting, but still maintains the handcrafted look.