In a successive rubbing treatment for providing a large number of substrates each having an alignment control layer with a uniaxial alignment axis for aligning a liquid crystal, a plurality of substrates are rubbed alternately with one or the other side of pile yarn planted on a rubbing cloth wound about...http://www.google.se/patents/US5221981?utm_source=gb-gplus-sharePatent US5221981 - Production of liquid crystal device including aligning treatment by rubbing
