Type: Man-made fibres | Classification: Organic | Sub-classification: Artificial fibre, from cellulose

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Fibre structure & physical properties

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: White

Microscopic Images (Cross sectional and SEM):

Image source: Caption:

Its cross section determined by the spinneret. Usually irregular multi-lobal shape, but can be flat or Y-shaped.

(CC) Sebastian Nordstrom
(CC) Sebastian Nordstrom
(CC) Sebastian Nordstrom
(CC) Sebastian Nordstrom


Uniform in width with a few distinct longitudinal striations

Fibre properties (Mechanical, Chemical and Thermal)

Mechanical Properties

Tensile strength (cN/dtex) :

Chemical Properties

Hydrophobicity: Hydrophilic

Moisture regain (%): 6%

Thermal Properties

Flammability: Burn and melts. Material will continue to burn after it has been removed from the flame. Odour is acidic or vinegary. Ash is a hard black bead.

Sustainability considerations

End uses

Apparel: dresses, linings and knitwear.


Production and technical process of cellulose acetate [1m 16s]
Mazzucchelli 1849 Acetate Production [3m 17s]

Materials using this fibre

Additional resources

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.