acrylic is better, it is more cost-effective.
acrylic is better, because the color of polypropylene will change over a period of time, and the line is crispy.
Of course the pattern will have a certain impact on the human sense, polypropylene fiber is better than acrylic, because the molecular density of acrylic is bigger than polypropylene, but PP carpet is not bright enough, so from the sense it may be slightly worse than acrylic. no matter what the acrylic carpet is, it is more wear resistant
