Attendee Jeff Toepfler, design and prepress partner from Imageworx, commented, "The exceptional quality and ultra-fine adjustment capabilities of the MPS EF press have allowed us to stretch the already formidable capabilities of flexography into the, before now, unachievable realms of security, lenticular and exceptionally high line
screen ruling print."
The ink transfer in roto-gravure is governed by parameters such as nature of substrate, ink viscosity, pressure, press speed, hardness, types of doctor blades used,
screen ruling, etc.
These shapes have a high dot gain in printing, so they are not to be recommended for high
screen ruling. Therefore the authors recommend them for the area visible to the human eye.
These shapes have a high dot gain in printing, so they are not to be recommended for high
screen ruling. Therefore we recommend them for the area visible to the human eye.
Allen Press is known for print quality and uses a 175-line
screen ruling as its standard.
For scanning an image, however, there is a general consensus among publishing gurus today that a proper scanning resolution is between 1.5 and 2.0 times the
screen ruling (times any enlargement factor).
A rough
screen ruling of 3 lpi is used in all the examples in order to observe the parameter mutation development in the best possible way.
The viewer shows dots, patterns, and platemaking artifacts, and reports percentage dot (the CCD scanning array counts pixels rather than reading density),
screen ruling and angle.
Plates are imaged at 1016 dpi for an 85-line
screen ruling, processed, bent and vertically stacked.