I have more than twenty years experience in tissue paper industry as R&D manager and senior consultant. I have worked in Latif Paper Co., the producer of tissue from waste paper with deinking plant, as R&D manager and the manager of process engineering. In the Harir Paper Co., the producer of tissue from virgin Pulp, I had good experience as consultant. At the University, I have worked on many research projects on pulp and paper science especially mechanical treatment of recycled and virgin pulp.