Electronic engraving machine engraving line number, the more the better
Electronic engraving machine engraving line to print image of the level of abundance, it will also affect other print quality.
In the process of intaglio engraving, usually through the important parameters to evaluate the quality of the gravure plate making, namely net hole width value, and through the proofing of important parameters to evaluate the quality of the printing, namely reflection density value test, to determine the number of for different cable carving gravure plate-making process specification, generally have: (
Carved screen density is inversely proportional to the net hole degree and depth, carved screen density is low, a single net hole width, depth is deep.
The opposite of a single net hole width is small, shallow depth;
In the highlight areas, engraving screen density high reflection density and screen density low reflection density difference is not big;
In the region of the dark color, engraving screen density low net hole is higher than carving screen density of net point is large and deep.
Net hole store large amount of ink, printing ink layer thick are the main factors influencing the reflection density, so dark color area carved screen density low reflection density;
Carved screen density low, printing plant, dark color levels are vulnerable, dark color and not easily.
And carved screen density high, in the dark color is compressed, although rich layers, but easy and level;
Carved screen density low, mesh point thick and thin, version roller with merkurtisk a. s. graphic have obvious jagged edges.
Line number is high, the mesh point fine, dense, version of the roll up the printed sheets with graphic no obvious serrated edge;
Adjacent nodes percentage difference between the two levels of mesh point value changing with carved screen density.
Carved screen density low, adjacent nodes percentage difference between the two levels of mesh point value is bigger, carved screen density is high, the adjacent nodes for smaller values of the percentage difference between the two levels of net point.