In general, all fabrics that have a dense, flat surface, positioned perpendicularly to the armor, smooth, compact, brilliant. False velvets are known as those obtained with simple armor, whose velvety hair comes from threading, wrapping, grinding, brushing (for example, beaver, velor carder for female wool, fusion varieties, etc.). True velvets are instead of thick fabrics, characteristic of the presence of protruding rings or hairs. They can be manufactured with two basic weaving systems: either irons or double height. In the first case, in addition to a bottom fabric (ligature), there is an additional warp: during the weaving, a rod of iron is introduced into the warp step, which, upon extraction, may leave the additional ringed arched rings (curly velvet ) Or cut them to the top of the ring by creating the characteristic hair. In the second system there are two overlapping fabrics, which are maintained at a certain distance and tied by an extra warp common to both. After the weave, the two tissues are divided by cutting the extra threads in the center, thus creating the effect of the hair. In all these processes, the coat appears united, compact, smooth. Another variant is the velvet, which can be obtained either by weaving, brushing, waxing, calendering, etc. Here, too, there are many varieties: Broad, Medium, 500 Rows, 1000 Rows, etc. Other velvets are printed, worked, calendered etc. Cotton velvet is now a classic, always fashionable. However, velvets are made in all fibres and for all uses, from furnishings to clothing.