X-ray Photoelectron Spectroscopy (XPS) technique was used to study four different types of regenerated cellulosic fibres; fibres regenerated form 100% plain woven waste cotton garment, fibres reclaimed from 100% indigo dyed waste denim, fibres regenerated from blend of wood pulp and waste garment pulp and fibres regenerated from high purity wood pulp. The fibres were regenerated from N-methyl N- morpholine oxide (NMMO) solution and then analysed using XPS. The high resolution spectra of the analysed fibres indicated that the fibres regenerated from cotton waste garments were affected by oxidative degradation either during its first life cycle or during the purification and regeneration processes. The fibres reclaimed from indigo dyed waste denim revealed presence of traces of dyes on the surface
University of Dar es Salaam