A sheathed yarn having a natural appearance comprises a core yarn and a sheath which is made from a thermoplastic material. The thermoplastic material of the sheath comprises less than 20 wt.-% of staple fibers, especially of natural origin. The sheathed yarn exhibits excellent mechanical properties and usage properties such as fire resistance, weatherability, resistance to sunshine, and an external appearance generating physically pleasant visual, tactile and olfactory sensations.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation of International Application PCT/FR03/00283 filed on Jan. 30, 2003, and published in French as International Publication WO 03/066944 on Aug. 14, 2003, and claims priority of French patent application number 02.01577 filed on Feb. 8, 2002, the complete contents of these applications being incorporated by reference herein.
A heat and flame resistant sewing thread having a core strand formed of glass material filaments is wrapped with a sheath of staple fibers spun about the core strand A lubricant is applied along the core strand to assist in the wrapping of the core strand with the sheath fibers. The sheath fibers include a series of microdenier fibers and generally will be ring spun about the core strand.
