Date of Award

6-1995

Degree Name

Master of Science

Department

Paper Engineering, Chemical Engineering and Imaging

First Advisor

Dr. Raymond L. Janes

Second Advisor

Dr. Brian Scheller

Third Advisor

Dr. Dennis Darling

Fourth Advisor

Tom Spotts

Access Setting

Masters Thesis-Open Access

Abstract

The print quality of 24 different coating formulations was studied when printing with both water- and solvent-based rotogravure ink. Coating was done on a Cylindrical Laboratory Coater (CLC). The coated paper samples were supercalendered to achieve a smooth surface which is necessary when printing with rotogravure. The supercalendered coated paper samples where tested for optical and surface properties and also printed with water-based and solvent-based ink on a Moser Gravure Proof Press. The print quality of the printed samples was quantified by image analysis. The results showed that fine ground calcium carbonate gave the lowest percent bridging between ink dots, the highest brightness and opacity followed by calcined clay. Using styrene-butadiene latex as a binder gave increased percent bridging and increased the contact angle. Acetate latex as a binder reduced percent bridging. Calcium Stearate slightly reduced the optical and surface properties for coatings and raised the contact angle of the supercalendered coatings.

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