Abstract: Provided are a hygroscopic material which includes a resin layer, a hygroscopic layer, and a damp-proof layer in this order, in which the hygroscopic layer has a pattern structure having a first region that has a thickness A and a second region that is present at a peripheral edge of the first region and has a thickness smaller than the thickness A, and the damp-proof layer is provided on the first region and the second region; a method of producing the same; a packaging material; and a packaging item.

Abstract: According to the present invention, since the gravure roller with no load has a radial run out of 15 ?m or less in all places of a pattern part in which cells are formed (the gravure plate cylinder) on the surface of the gravure roller, liquid accumulations (beads) are hardly affected by the radial run out of the roller surface, thereby making it possible to prevent coating nonuniformity.