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I often see the comparison of polypropylene BCF yarn and polyester BCF yarn, so which is more cost-effective?

In terms of hand feeling, polyester is better than polypropylene BCF yarn, but polypropylene wear resistance is better than polyester. Polyester is generally divided into filament and short yarn. It belongs to synthetic fiber. Polypropylene is chemical fiber. Now polypropylene BCF yarn is used in carpet. More on the point, because the texture is light, cheap, friction, and one point is very good care, especially compared to polyester carpet. The key to the best carpet is still to take care of it.

The two have their own merits and cannot be generalized. The key is to look at what requirements they are more concerned about.