Application of Polyolefin Dispersions in Paper Coatings
Abstract:The quality of inkjet printed color is significantly influenced by the substrate coating structure, which strongly affects ink-setting performance. Small amounts of coating additives are necessary and play an essential function, which in turn affects the substrates final surface structure, optical properties and printed color. The main objective of this study was to evaluate the performance of various polyolefin dispersions in paper coatings for inkjet papers and their effects on paper properties, inkjet printability and color. The polyolefin dispersions were added to a typical silica based coating formulation, and then compared to a control coating without a polyolefin additive. The coatings were applied to base sheets by a cylindrical laboratory coater. Coated papers were then calendered. To ascertain the mechanism underlying the effects of tested additives coating rheology, surface properties, optical properties, and print quality were measured. Based on the results, these additives provide increased paper brightness due to enhanced OBA efficiency, better lightfastness, and the potential for improved coating application.
Document Type: Research Article
Publication date: January 1, 2009
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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