A device that applies adhesive on one side of a continuous sheet that travels, by acting air discharged from an air discharge hole of a head on the adhesive discharged from an adhesive discharge hole of the head. The device includes a first air curtain forming member positioned at a location on a downstream side of the head in a direction of travel of the continuous sheet, to oppose the head with a space therebetween, and forms a first air curtain by emitting air toward the one side of the continuous sheet. The device includes a pair of second air curtain forming members positioned at locations at outer sides from head in a width direction of the continuous sheet, to respectively oppose the head with spaces therebetween, and forms second air curtains by emitting air toward the one side of the continuous sheet.
