The properties of plain woven fabrics made of Dref 3 yarns having staple fibre core-sheath yarn,twistless core component and hollow sheath component in weft and 2-ply cotton ring-spun yarn in warp have been studied.

The properties of plain woven fabrics made of DREF-Ⅲ yarns having staple viscose fibre core-sheath yarn,staple PVA-twistless viscose core component and staple viscose-PVA twistless core sheath component in weft and 2-ply cotton ring-spun yarn in warp have been studied Three different yarns were prepared on DREF-Ⅲ system using 50-50 core-sheath rtaio.

Influence of carding,drum and output speed of friction spinning on the strength of yarn;

Trial Analyses of Processing and Performance of Ramie Aramid Friction Spinning Core-spun Yarn;

DREF friction spinning and optimization of yarn characteristics;

The core-spun yarn of polyester as sheath,glass filament as core is produced by DREF-Ⅲ friction spinning machine used in industrial woven plain fabric and composites.

In this paper, a theoretical analysis was given to the FC board of DREF friction spinning machine, the main steps and the key points to adjust and repair the damaged FC boards were introduced.

The formation and the characteristics of the yarn structure resulted from friction spinning areanalyzed.

This paper presents the spinning of antistatic yarns using friction spinning system and eventually production of antistatic cut-pile carpets, paving the way for more methods in production of carpet pile yarns.