Teijin Frontier Co. Ltd., the Teijin Group's fibers and products converting company, developed 'OctaⓇsf', a polyester spun yarn that provides a soft, gentle feel, fluffiness, light weight, moisture absorption and heat retention for textiles used in sportswear and outerwear.
To create this novel spun yarn, Teijin Frontier developed an ultra-fine staple fiber with a hollow, 8-fin modified cross-section, processed using special spinning and drawing technologies. 'OctaⓇsf' overcomes softness limitations of existing staple fiber made of modified filament yarn, addressing demand for new materials that combine high performance with desirable tactile feel.
The gaps created by the fiber's 8-fin modified cross-section, combined with the softness of the extremely fine-spun yarn, provide a gentle feel, natural fullness and warmth. 'OctaⓇsf' yarn also delivers practical functionality such as water absorption and diffusion thanks to its eight hollow fins; bulkiness and lightness due to the gaps between fibers; and heat retention from the presence of dead air. The modified cross-sectional shape and large gaps between the staple fibers make it easy to blend them with other natural fibers such as wool, as well as synthetic fibers such as lyocell.
Teijin Frontier is currently developing special structure fabrics utilizing 'Octa' yarn, primarily for outerwear and mid-layer applications, and is also developing related materials for base layers and innerwear requiring a softer texture. Previously, it was difficult to develop ultra-fine staple fiber that maintains a hollow 8-fin cross-sectional shape, but Teijin Frontier succeeded using its own special spinning and drawing technology.
The company will begin selling textiles made from 'OctaⓇsf' yarn for outdoor wear and sportswear in the fall/winter of 2025, subsequently expanding into other applications such as fashion apparel, aiming for sales of 100,000 meters in fiscal 2025 and 500,000 meters by fiscal 2028.
Source: www.teijin.com
