Rayons yarn properties

Union Carbide, and now Amoco, are producing pitch carbon-fibres as continuous filament yarn and as fibre mat. The two forms are primarily differentiated by the spinning technique but differ significantly in appearance, properties and cost potential. The continuous fibres (Thornel P Series) are round and have a diameter of about 7.8 pm and a density of 1.958 gcm . They have mechanical properties comparable to PAN in rayon carbon-fibres, their strength being somewhat lower. But they have very good electrical properties which can be further enhanced by intercalation. 

Uses Wetting, penetrating, leveling agent for dyeing cotton and rayon with direct colors dispersant, penetrant for vat and naphthol colors emulsifier for self-scouring fiber and yarn lubricants Properties Liq. 78% cone. 

---