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Article: Improving metallic ink printing through polarized densitometry.
- Article from:
- Ink World
- Article date:
- January 1, 2004
- Author:
CopyrightCOPYRIGHT 2004 Rodman Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Editor's Note: This article was first published in the 2002 TAGA Proceedings.
Metallic inks have long been used to enhance the value and convey quality of the printed piece. As with any ink, it is necessary to measure the optical density of the ink with a densitometer or spectrodensitometer to ensure correct color and print quality. It had been determined that densitometer readings for metallic inks among several instruments out on the market did not correlate well if the ink film thicknesses were varied.
Understanding the correct readings help in preventing set off in the stack, insufficient drying of ink in web presses, better control of ink and water ...