Descriptive of fibres, yarns, or fabrics that have not been subjected to processes affecting their natural colour. A fabric containing rubber or other elastomeric fibres or threads, having recoverable extensibility in a direction parallel to the elastomeric threads, and characterized by a high resistance to deformation and a high capacity to recover its normal size and shape. A term used to describe fibres composed of natural or synthetic polyisoprene, or composed of one or more dienes polymerized with or without one or more vinyl monomers, which rapidly revert substantially to their original length after extension to three times that length. A yarn formed from an elastomer. Elastomeric yarn may either be incorporated into fabric in the bare state or wrapped with relatively inextensible fibres.
Examples are elastane and elastodiene yarns.
To produce a pattern in relief by passing fabric through a calendar in which a heated metal bowl engraved with the pattern works against a relatively soft bowl, built up of compressed paper or cotton on a metal centre. An individual warp thread. A fibre whose surface contains partially or wholly embedded particles that modify one or more of its properties, e.g., its electrical conductivity. A type of wild silk . An inherent fault in silk only apparent after degumming or dyeing.