With 75 years of experience in fiber production, the Lenzing Group is the only company worldwide combining under one roof the manufacturing of all three man-made cellulose fiber generations on a large industrial scale– from the classic viscose to modal and lyocell (TENCEL®) fibers. Due to the infusibility of cellulose, production of cellulose fibres for textile and non-woven applications needs to dissolve the cellulose to obtain spinning dopes. Dissolving of cellulose means to break up the strong hydrogen bonds between the cellulose chains and to replace them by interactions with a solvent, by derivatization or by complexation of the cellulose OH-groups. During this dissolution process, depending on the solvent used, degradation might occur. As examples LiCl/DMAc, ionic liquids and viscose solutions are compared in terms of desired and undesired degradation reactions and their impact on processability.<br/>

Cellulose degradation during deformation processing and analytics

249th National Meeting (2015)

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