Disclosed is an intaglio printing process which comprises (a) forming an intaglio printing plate having groove patterns, (b) filling said groove patterns with an ink, (c) after drying said ink, forming a curable resin layer on the whole surface of the intaglio printing plate, (d) placing a body to be printed thereon without curing said resin layer, (e) curing the curable resin, and (f) stripping the body from the intaglio printing plate to form the ink patterns corresponding to the groove patterns of the intaglio on the body. There are also disclosed processes for producing a color filter, a black matrix and a circuit board.