Viscose Filament Yarn (VFY)

Viscose Filament Yarn (VFY) is a continuous-filament regenerated cellulose textile yarn, made by dissolving wood pulp (cellulose) in a viscose solution and extruding it through spinnerets into continuous filaments. It is used for high-lustre fabrics and saris. Its wastewater generation benchmark is the highest of the textile sub-categories at 500 m³ per tonne of product — a striking figure that flags it as exceptionally water-intensive.

The viscose process is chemically intensive, using caustic soda, carbon disulphide and sulphuric acid, and its effluent carries sulphate, zinc, sulphide and high organic and chemical load along with the enormous water volume. The carbon disulphide and zinc make it a notable pollution concern, and the 500 m³/tonne water use makes it a prime target of the wastewater generation standards.

For recyclers, VFY is relevant mainly as context within the regenerated-cellulose and textile group and as an example of an extremely water-intensive process. It is not a recycling process itself, but it sits in the same wastewater-benchmark family as viscose rayon and viscose staple fibre, and connects to the broader textile recycling and cellulose-fibre theme. Textile waste recycling and the recovery of cellulosic fibres relate to this material class.

The practical relevance for the recycling reader is to recognise VFY as the benchmark for textile water intensity and as a member of the viscose/regenerated-cellulose group in the standards. For anyone in textile or fibre recycling, it illustrates how virgin synthetic-cellulose production carries an extreme water and chemical footprint — strengthening the environmental case for textile recycling and fibre recovery as lower-impact alternatives. For most recyclers it is simply useful to know as one of the named water-intensive industries in the wastewater generation standards.