A method includes steps of carrying an air-permeable web while holding the first surface of the web on a carrying surface; dispensing powder particles onto the second surface of the web; and while drawing the first air from a plurality of suction holes in the carrying surface through the web, thereby holding the powder particles in a predetermined pattern on the second surface of the web, discharging the second air toward the web through a discharge hole open in a non-suction area, whereby the powder particles on non-suction areas are blown away by the second air, thus arranging the powder particles in a predetermined pattern on the web.