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Features

Creating rub-resistant inks

Jul 1, 1995 12:00 AM, Scarlett, Terry

Nothing can spoil the effect of quality printed products more than the ink scuffing or rubbing off during shipping and handling. Rub resistance, therefore, is an important property to consider when formulating printing inks.The need for rub resistance extends to just about every printed product. Even that perennial complaint about newspaper ink coming off on consumers' hands has received some long

Dealing with ink dispersion.

May 1, 1995 12:00 AM, Scarlett, Terry

Having dealt with several ink properties relating primarily to an ink's performance on press, this month we examine an aspect that may be considered manufacturing related. However, it subsequently has considerable bearing on how well ink ultimately will behave during printing and afterward.The subject is dispersion. Inks are a complex mixture of pigments, varnishes, waxes, solvents and other additives.

Factors affecting ink performance

Feb 1, 1995 12:00 AM, Scarlett, Terry

Water pickup is probably one of the most controversial and misunderstood ink characteristics. The numbers obtained on water pickup and the resulting curves plotted from this data are open to a wide range of interpretations.Nevertheless, printers and inkmakers insist on conducting this test and trying to predict an ink's performance based on water pickup values. The reason? The idea of a water pickup

Painting the ink picture

Jan 1, 1995 12:00 AM, Scarlett, Terry

Watch for changes in ink pricing, consolidations and other developmentsThe fortunes of the printing ink industry are dictated primarily by events within the graphic arts industry it serves - and 1994 could not be considered a banner year for either one. The printing industry continued to consolidate as companies as struggled with ongoing overcapacity. This situation created fierce competition that