GCM 800 Lecture Notes - Lecture 6: List Of Recurring Futurama Characters, Flexography, Dot Gain
31 Dec 2020
School
Department
Course
Professor
Document Summary
A flexo plate is a relief plate. Non-image areas are not raised (floor of the plate) The height difference is referred to as the relief or relief height . Line screen: t he physical dot size of the same do percentage (for example a 30% decreases as line screen increases. Dot shape: dot gain is minimized when round dots are used, especially in vignettes. When making flexo plates it is essential to apply a distortion factor around the plate cylinder (circumferentially) This is due to the thickness or caliper of the plate. The plates used at gcm and in most narrow-web shops is 0. 067 (67 thou) Why is plate distortion necessary? the same length x=y. When a plate is lying flat, the top (printing) surface and bottom (base) surface are. When the plate is wrapped around a plate cylinder, the printing surface becomes stretched because the distance around the top surface is greater than the bottom surface.
