Fibre composition:

Regenerated cellulose

Diameter: Can be made to any diameter
Very fine: < 10 μm, Fine: < 20 μm, Medium: 20-50 μm, Course: > 50 μm

Length: Filament

Staple length: continuous filament
short < 26 mm, medium 26-29 mm, long: 30-38 mm, extra long: 39 mm and over

Natural fibre colour: Off white

Microscopic Images (Cross sectional and SEM):

Comment:

Smooth surface with lengthwise lines called striations, naturally bright luster.

Mechanical Properties

Tensile strength (cN/dtex) : 1.5-2.0 dry, 0.7-1.1 wet

Chemical Properties

Hydrophobicity: Hydrophilic

Moisture regain (%): 13%

Thermal Properties

Flammability: Ignites quickly, burns with a bright yellow frame, sometimes more rapidly than cotton. Odour is like burning paper. Ash is light grey feathery.

different methods of production determine its sustainability potential. Alway check the source of wod pulp is not from old grow forests but instead from renewable resources. It is a water intensive manufacturing porcess. In the past methods used toxic carbon disulfide that were released into the environment. Newer technologies are able to capture the carbon disulfide and recover most of the sulfur to recycle it through a closed loop manufacturing process.

Apparel: Mainly apparel (as silk-like) and used in blends to reduce cost

• Swatch 005 Single Jersey Weft knit – 54% Cotton 46% Rayon – Pink
• Swatch 015 – Double Jersey Weft knit – 100% Viscose Rayon – Pale Olive Green
• Swatch 027 – Double Jersey Weft knit – 72% Polyester 23% Viscose rayon, 5% Spandex – Charcoal grey

Taylor MA, 2004. Technology of Textile Properties. Third edition. Forbes Publications, London, UK.

Zhong Z and Xiao C, 2008. Fabric composition and testing. In: Fabric Testing. Ed: Hu, J. Woodhead Publishing Limited, Cambridge, UK.

ISO/TR 11827:2012 Textiles — Composition testing — Identification of fibres.

Houck, Max M. Identification of Textile Fibers. Cambridge : Boca Raton: Woodhead Pub. in Association with The Textile Institute ; CRC, 2009. Print.