Pile discoloration is when a rug loses its real color and becomes faint, dull and unoriginal and the ornament loses its charm. Pile discoloration happens after the rug stays in the sun too long. Ultraviolet (UV) rays are harmful for the rug. Keep your rugs away from the sun! The second reason is when the rug is cleaned incorrectly or it’s cleaned by laypeople. Lots of modern cleaning agents nowadays might cause such damage, especially when we deal with silk or wool carpets. In some cases it’s enough just to color the nap and the carpet will look as it did. But sometimes it’s necessary to change the pile.
Pile deformation happens if there’s lots of physical impact from the furniture or spilt liquids. In pile deformation there are spots on the rug, as if it is sunken. In that case the pile is so misshapen that it’s impossible to make it look as it used to without being restored. If a silk rug is cleaned with a scotch-bright pad or a brush, the silk pile turns out of shape and gets mixed up. Unfortunately, in this case only rug restoration with a complete removal of the ruined pile and replacing it with the new one can help. It’s a hard restorer’s work.