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Summary: Influence of Pigment Particle Size and Packing
Volume on Printability of Glossy Inkjet Paper
Coatings
Hyun-Kook Lee, Margaret K. Joyce, and Paul D. Fleming
Department of Paper Engineering, Chemical Engineering and Imaging
Western Michigan University
Kalamazoo, Michigan 49008
Abstract
The optical properties and printability of ink jet coated
papers are influenced by smoothness, surface chemistry and
pore structure of the surface coating layer. To control these
properties, the coating formulator must select the proper
pigment(s) and binder(s), the two main components of any
coating. For glossy ink jet papers, small particle, large
surface area fumed silica and aluminum pigments have been
shown to provide the desired properties for high quality
glossy ink jet coated papers. However, their high cost and
low make-down solids, in comparison to conventional
pigments, has limited their use by the industry to these
specialty grades.
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