The Influence of Kaolin Aspect Ratio on Offset Printability, PaperCon 2010 Conference

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Maintaining quality in a cost focussed market is challenging, but for coated papers to have a future especially in the commercial printing and magazine sectors, they need to be able to maintain “quality” advantages over lower cost alternatives. Print quality and press runnability are especially important areas and issues here can really weaken a papers brand image. In this paper we show how different pigment concepts can influence printing, both in terms of quality and press related issues such as piling. Controlling porosity, topography and strength are critical to achieving good printability and in these studies we see that increasing pigment aspect ratio is powerful tool for influencing these parameters.