IDENTIFICATION AND ANALYSIS OF INK SETTING AND DRYING IN SHEET-FED OFFSET AND DRY TONER BASED DIGITAL PRINTING PRESSES

Sheet-fed offset has been one of the most popular printing methods to print cellulosic based substrates. Dry toner based digital printing methods have come to exist recently and captured a significant market share especially for short run print jobs. But if the ink doesn’t dry on proper time, it may result into set-off and it may hamper press speed. Aim of this paper is to analyse and compare ink setting and drying capabilities of Sheet-fed offset and Dry Toner based Digital printing technologies. Uncoated, gloss coated and matte coated papers were taken to examine the inkdrying behaviour of both printing processes.