GRA 633 Lecture Notes - Lecture 5: Offset Printing, Prepress, White Point
16 Apr 2017
School
Department
Course
Professor
Document Summary
Press colour management press variables that affect consistency: mechanics slur or dot doubling from too much impression squeeze. Mottling from too little pressure paper: same surface characteristics (gloss, absorptivity, weight, thickness, colour (white point, obas. Press variables that affect consistency: ink. Colour management policies: all of these variables must stay the same to remain consistent. Optimizationg: ideally all of these variables should be optimized to print the best image quality and colour a press can produce, includes: Ink film thickness: the second of the 4 c"s of colour management, making sure a press. Specifies ink film l*a*b* and recommends calibration methods based on gray balance (g7) For type 3 *& 5, web offset papers (specific white points) Iso 12647 2 international organization for standardization: specifies ink aim points for cmyl solids in l*a*b* and recommends calibration methods based on tvi. First flexographic image reproduction specifications and tolerances: for flexography methods for creating optimized aim points.
