Patent ID: 8158209

Claim:
A method for coating an entire surface of a work having a circular shape, with a thin and uniform photo-setting synthetic resin film suitable for use in a nano-imprinting apparatus for imprinting a pattern by impressing thereon a master pattern on a transfer surface of a mold, characterized in that said method comprises the steps of: providing an inkjet feed means having a horizontally arranged bar-shaped manifold nozzle assembly at a pendant shaft positioned vertically in alignment with a center rotation line of a spindle having the work set thereon, said nozzle assembly being arranged in such a way as to cover the entire surface of said work; feeding droplets of resin liquid for forming the resin film, from a plurality of inkjet nozzle holes of said nozzle assembly through a resin liquid supply passage provided in a center line of the vertical pendant shaft, onto said surface of said work during rotation of said work, so as to coat the thin and uniform photo-setting synthetic resin film on the entire surface of the work; and controlling drop feed timings from said inkjet nozzle holes in such a way that droplets of said resin liquid are fed onto said work at a shorter time interval in an outer peripheral side than in an inner peripheral side of said work, wherein a thin and uniform photo-setting synthetic resin film, used in a nano-imprinting apparatus for imprinting a pattern by impressing thereon a master pattern on a transfer surface of a mold, is provided.