Rubbing apparatus with an even number of rubbing rollers with pile yarn on half inclining in the opposite direction to that of the other half

摘要

A rubbing apparatus is provided with an even number of, e.g., two, rubbing rollers. The two rollers are provided with rubbing clothes wound thereabout and each planted with pile yarn so that the standing directions with inclination of the pile yarn of the two rubbing rollers are parallel to the rotating direction of the rollers and mutually opposite to each other. A plurality of substrates each having an alignment control film thereon are successively rubbed by the rubbing rollers while the rotating direction of the rollers is changed for each substrate. As a result, the substrates are provided with a uniform alignment power free from irregularity. At the same time, the inclination of the pile yarn during the rubbing treatment is prevented, whereby the rubbing cloth can be used for an extended period.