Matching the Composition of Viscose to the Composition of the Spinning Bath in Production of Viscose Fibre

The existence of optimality criteria for viscose and spinning bath compositions is advanced as a working hypothesis. The degree of preparation of viscose for spinning is expediently characterized not only by the ripeness index and viscosity, but also by the chemical composition: the ratio of sodium trithiocarbonate (TTC)/NaOHfr. A ratio of ∼2.0-2.1 should be considered optimum. Specific conductivity on the level of 32-33 S·m−1 is the criterion of spinning bath activity.