Patent ID: 8020510

Claim:
A liquid applicator comprising: a guide roll for guiding a sheet; and a slit die, having a slit with an opening extending in an axial direction of the guide roll, for applying a liquid to a surface of the sheet guided by the guide roll; wherein the slit die further includes a front lip placed on the rear side of the opening in a rotating direction of the guide roll, the front lip having a concave surface corresponding to the guide roll, the front lip opposes the guide roll by such a length in the rotating direction of the guide roll as to have a central angle θ of 0.94° to 2.83° about an axis of the guide roll, the slit die further includes a back lip placed on the front side of the opening in the rotating direction of the guide roll, the back lip having a concave surface corresponding to the guide roll, and the back lip opposes the guide roll by such a length in the rotating direction of the guide roll as to have a central angle φ which is smaller than θ about the axis of the guide roll.