The viscose process

Cellulose pulp out of wood plantations is used as the main raw material to produce Viscose fibres.

FSC certified foresting and continuous improvement is a prerequisite for our pulp supplier.

The cellulose is ground up and reacted with caustic soda. After an aging waiting period, the ripening process during which depolymerisation occurs, carbon disulphide is added. This forms an orange crumb known as cellulose xanthate, which is further dissolved in more caustic soda to end up in a viscous orange solution. This solution is pumped through a spinneret, which contains hundreds of holes, into a dilute sulphuric acid bath where the cellulose is regenerated as fine filaments as the xanthate decomposes.

The viscose process

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