I see so many people asking about SDN carpets. The thing is, there are many SDN carpet yarns that vary greatly in characteristics and performance, so its often hard to be sure what to expect from the carpets you may be looking at.
I found this link which promotes the benefits of one of the very best carpet yarns that is available, Antron Lumena 6,6 SDN yarn by INVISTA.
http://antron.net/pdf_files/literature/ ... _sheet.pdf
But I'm not sure just which of the many manufacturers here are using this yarn. So if you want a very good SDN carpet, I'd suggest you ask for carpet made with this yarn by name. It would be good to see what responses you get, and please let us all know here.
Cheers!
Ash.