or thickness ofyarn. in the case of long staple yarns, whose technology is derived from one of the processes for making yarn out of wool, a hank is often defined as yds. ofyarn, and in this case, the symbol nw will be used to describe count. threads are usually made up of several single strands twisted...
polymers/elastomers: rubbers of all types (natural and synthetic), acrylic, vinyl, urethane, silicone, ptfe,... the list goes on and on. many techniques are used: yarn coating spread coating - many variants dipping/impregnating calendaring extrusion coating/laminating film to substrate bonding combinations...