A method for manufacturing a gravure plate includes, setting a certain measurement area on a surface of the gravure plate, finding at least one of a spatial volume that is the total of the volume of a space formed by a plurality of cells located in the measurement area and an average depth obtained by dividing the spatial volume by a surface area of the measurement area, and adjusting, based on a relationship between at least one of the spatial volume and the average depth and an application thickness of a printing material after printing, at least one of the spatial volume and the average depth so as to fall within at least one of a specified value range for the spatial volume and a specified value range for the average depth determined in accordance with a target value range for the application thickness.

Provided are a functional cylinder body, including a plurality of layers having magnetic patterns and non-magnetic patterns formed adjacently, and a manufacturing method therefor. The functional cylinder body comprises at least: a cylinder main body; a first functional pattern part, which includes first patterns and first functional patterns, the first patterns having first recess patterns and first non-recess patterns formed by forming recesses on a first material layer made of any one of a magnetic material and a non-magnetic material, the first functional patterns being made of any one of the magnetic material and the non-magnetic material embedded in the first recess patterns; and a second functional pattern part, which is formed in a position of the cylinder main body shallower than a position of the first recess patterns and has magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material formed adjacently.

A gravure printing plate and a method of manufacturing a gravure printing plate, which are capable of increasing a density range as compared to the conventional case to enable suppression of moire as well as to achieve rich gradation and enable fine tone settings. The gravure printing plate includes FM screen cells and AM screen cells which are concurrently formed in a plate surface thereof, and the FM screen cells and the AM screen cells are different in depth. It is preferred that, of the cells which are different in depth, shallower cells correspond to subcells and deeper cells correspond to main cells.

Provided are a functional cylinder body, including a plurality of layers having magnetic patterns and non-magnetic patterns formed adjacently, and a manufacturing method therefor. The functional cylinder body comprises at least: a cylinder main body; a first functional pattern part, which includes first patterns and first functional patterns, the first patterns having first recess patterns and first non-recess patterns formed by forming recesses on a first material layer made of any one of a magnetic material and a non-magnetic material, the first functional patterns being made of any one of the magnetic material and the non-magnetic material embedded in the first recess patterns; and a second functional pattern part, which is formed in a position of the cylinder main body shallower than a position of the first recess patterns and has magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material formed adjacently.

Provided is a cylinder etching apparatus, which is capable of performing etching more uniformly than in the prior art and is also capable of solving a problem in that a remaining etching solution in an etching solution supply tube flows down therefrom. The cylinder etching apparatus includes: a processing bath; chuck means; at least one etching solution supply tube; and a plurality of ejection nozzles juxtaposed in the etching solution supply tube and configured to eject an etching solution from the etching solution supply tube. The etching solution ejected from the ejection nozzles through the etching solution supply tube is caused to impinge against a surface of the cylinder to be processed, to thereby etch the surface of the cylinder to be processed. The ejection nozzles are oriented obliquely upward with respect to a horizontal direction. An ejection direction of the ejection nozzle is oriented toward a rotation center of the cylinder to be processed from a position that is obliquely downward of the cylinder to be processed. The ejection nozzles are arranged so as to be brought closer to and away from the surface of the cylinder to be processed.