GCM 111 Lecture Notes - Lecture 7: Screen Printing, Rotary Printing Press, Offset Printing

• School: Ryerson University
• Department: Graphic Communications
• Course: GCM 111
• Professor: Jason Lisi

Document Summary

Requires: printing plate, pressure asserted to transfer image from the plate to substrate. Only produces static sheets: every sheet in a press run is identical. Generally better for longer press runs: makeready is expensive and time consuming; longer the press run more profitable, typical conventional press runs can range from 500 sheets to over a million sheets. There are four (4) different types of conventional printing processes: planographic printing. Image area and non-image area are on the same plane. E. g. lithography, offset litho: relief printing. Image area is raised above the non-image area on the plate. Image area is recessed below the non-image area on the plate. Another term for conventional printing is impact printing: the plate (or blanket) impacts with the substrate to transfer the image. 4000 bc babylonians printing by impression with seals or stamps into moist clay. 3000 bc papyrus paper invented from the papyrus plant, used in egypt, greece, rome.