The biggest advantage of triexta (common noun, no caps) over polyester is texture retention (i.e., less crimp-loss). Based on reports of both Hexapod and contract walker testing, triexta performs a little better than polyester, but short of nylon. Both are oleophilic, so routine cleaning (at least annual) is required to maintain appearance.
The primary problem is that the triexta is sold as bullet-proof; so end-users purchase white carpet and expect it not to soil, or to clean miraculously. Ground-in soil on a white carpet takes a lot of extra effort in applying the principles of cleaning – especially using anionic detergents for soil separation and suspension, good agitation (preferably mechanical) and at least 30 minutes of dwell time before hot, hot! water extraction.
Shaw has dropped its triexta lines in favor of nylon; whereas, Mohawk is promoting SmartStrand (esp. with Invista Sorona) with a vengeance.
BTW, Bob Shaw is back in business selling highly price competitive polyester lines in any color you want – as long as it’s a shade of brown!
Anyone can join us in our Senior Inspector Course for mill tours on Tuesdays, with advance notice.