Viscose Quality Control and Testing
topic
Quality parameters monitored include: viscose solution viscosity (ball fall time 40-80 seconds), ripening degree (salt test, filtration index), spin bath composition (H₂SO₄ 8-12%, ZnSO₄ 18-22%), fibre tenacity and elongation (ASTM D2256), moisture regain (ASTM D2654), denier uniformity (Uster evenness), and dye uptake uniformity.
Role
Rigorous quality control ensures consistent fibre performance across production batches, critical for textile manufacturing efficiency and end-product quality.