Patent ID: 9669421
Date: 2017-06-06
CPC Classifications: B05C,B41F

Claim:
1. A gravure kiss coater comprising: a cylindrical small-diameter gravure roll having an outside diameter in a range of 45-150 mm, and having an outer circumferential surface including a coating portion; and a paint feeder extending along the small-diameter gravure roll and feeding paint to the coating portion, wherein while rotation of the small-diameter gravure roll is controlled, a sheet-like substrate is coated with paint by pressing the coating portion against the substrate traveling while being stretched linearly, the paint feeder includes the distal end of the doctor blade is located so as to contact the coating portion from a direction opposite to a direction of rotation of the small-diameter gravure roll, the small-diameter gravure roll is capable of contacting the substrate within a range of rotation angles equal to or less than 90° from the distal end of the doctor blade, when the paint feeder is horizontally oriented, at least any one of uppermost and lowermost ends of the paint feeder is located between a pair of tangent lines being each tangent to a corresponding one of upper and lower ends of the small-diameter gravure roll when viewed along a rotation axis of the small-diameter gravure roll, the case includes the paint feed path includes an inside diameter of each of the liquid feed pipe and the at least one liquid return pipe is set at a value greater than or equal to ½ of a distance between the downstream wall portion and the upstream wall portion, the paint passes through a portion of the paint feed path at a higher level than that of the storage space, and returns to a storage tank, and at least one paint guide wall having an L-shaped cross section is provided in the storage space to separate the connection port of the liquid feed pipe from the connection port of the at least one liquid return pipe.