Coating method and apparatus utilizing controlled electrostatic charge

摘要

A coating method and coating apparatus with which layer surface defects caused by foreign matter such as dust particles and the like can be greatly reduced. The method and apparatus are characterized in that an static reducing device which reduces static charge on a support is provided. Before a coating solution for an emulsion layer is applied to the support web by a coating device, the static charge level of the support is reduced to 1 kV or less by a static eliminator. Thus, layer surface defects at a coated layer formed by coating are decreased.