A novel approach for sulphur test on viscose based materials

When the fiber consumption rates are considered, consumption of viscose fibers is gradually increasing in connection with the increasing demand and trends. Regenerated fibers with cellulosic base and different properties are produced in order to fulfil every kind of need with the aid of new production techniques developed especially in the last years. However, certain problems are confronted in repeatability in finishing processes because of the differences in production methods, and most of these problems are projected to be sourced from sulphur present on the viscose fabrics. In spite of all of these, there is no standard sulphur indication method in the market that is widely accepted. To determine the sulphur content, a practical test system for sulphur indication was developed and a sulphur scale like "TEGEWA Violet Scale" to evaluate the starch desizing degrees was formed in scope of this study. With the aid of this scale, the presence of sulphur on viscose and the amount can be determined practically, even though it is a subjective method.