Quality Analysis on Vegetable Oil-Based Offset Printing Ink
This research was aimed to examine the quality of the vegetable oil-based offset printing ink. In the experiment,
the yellow vegetable oil-based offset printing ink was tested their various attributes including 1)Tack 2)Spread flow, and 3)
Gloss. The obtained results were examined to locate the printing quality executed on 70-gram matte papers. Density and
Tone value increase on 10 papers were measured to obtain their average values. According to the test result, tack, spread
flow and gloss of the yellow vegetable oil-based offset printing ink was similar to those of commercial ink. Additionally, the
tone value increase of the yellow vegetable oil-based offset printing ink was at the maximum of 15.1, which was at 50%
screen of the dot gain value.
Keywords - Quality analysis, Vegetable oil-based, Offset printing ink.