Felt is a non-woven cloth that is produced by matting, condensing and pressing woollen fibres. While some types of felt are very soft, some are tough enough to form construction materials. Felt can be of any colour, and made into any shape or size. Many cultures have legends as to the origins of feltmaking. Sumerian legend claims that the secret of feltmaking was discovered byUrnamman of Lagash. The story of Saint Clement and Saint Christopher relates that while fleeing from persecution, the men packed their sandals with wool to prevent blisters. At the end of their journey, the movement and sweat had turned the wool into felt socks. Felt is made by a process called wet felting, where the natural wool fibre is stimulated by friction and lubricated by moisture (usually soapy water), and the fibres move at a 90 degree angle towards the friction source and then away again, in effect making little "tacking" stitches. Only 5% of the fibres are active at any one moment, but the process is continual, and so different 'sets' of fibres become activated and then deactivated in the continual process. This "wet" process uses the inherent nature of wool and other animal hairs, because the hairs have scales on them which are directional. The hairs also have kinks in them, and this combination of scales (like the structure of a pine cone) is what reacts to the stimulation of friction and causes the phenomenon of felting. It tends to work well with woolen fibres, as their scales, when aggravated, bond together to form a cloth.
Wet feltingFeltmaking is still practised by nomadic peoples in Central Asia and northern parts of East Asia, where rugs, tents and clothing are regularly made. Some of these are traditional items, such as the classic yurt, while others are designed for the tourist market, such as decorated slippers. In the Western world, felt is widely used as a medium for expression in textile art as well as design, where it has significance as an ecological textile.
