Synthetic felt is a kind of non-woven fabric, and it is not like waving fabric. It can be made from polyester, polypropylene, viscose, acrylic, and polyamide. It could also be made from many kinds of fiber together. The technology of making synthetic felt called needle punched. The fluffy synthetic fiber is punched by millions of needles to achieve to a desired thickness and density. Then the felt will be processed in a high temperature to make a smooth surface. The difference between the pressed felt with the needle punched felt is that the fibers of pressed felt lay horizontally, but the fibers of needle punched felt lay vertically.
The synthetic felt could be used as materials of polishing, insulating, packing, and shockproof, dustproof, decoration, and gasket.