Knots per square inch is one determining factor of the quality of rugs, but should not be the sole factor that you consider. Other factors include the quality of the material and dyes, the origin (for example India, Pakistan and China are known for quality rugs),age, condition, and so on.

to answer your question, check out this link www.jacobsenrugs.com/dyes.htm on d...

Hey,

Thanks for the info about how to find quality of rugs. Great work.