Continuous Filament Nylon (CFN) : If you see on the back of a carpet sample a label that says "CFN" , or "BCF", that means this carpet is made from Continuous Filament Nylon.
Continuous Filament Nylon starts out as one long continuous strand before made into yarn. The other type is called "Staple Nylon", which means each fine filament is cut into strands about 7 inches long before it is spun into yarn and then tufted into carpet. As the short, unsecured pieces of staple nylon come loose from the yarn pile you get pilling on the surface of the carpet. This does not occur with a continuous nylon carpet.
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