Recent content by Liz Scherer

Issue is the viscosity range which can be measured by the Zahn. A #1 Zahn range is 7.5 to 60 cps. The viscosity of water at room temperature is about 1 cps, IPA about 2. If the fountain solution is lower in viscosity than 7.5 cps, the Zahn won't be able to give you an accurate reading.

And in answer to your question about gravure and magazines, yes, that is very common, especially in Germany.

This is most definitely gravure. In publication gravure printing, presses are equipped with electrostatic assist, which utilizes electrostatic force to pull the ink up out of the cell and onto the paper. The inks are very low in viscosity. Surface tension will cause a meniscus to form in...

Spectrodensitometer A densitometer uses a light source and three filters to measure the amount of light reflected from a sample. A sphere spectrophotometer uses a light source and a reflecting sphere, equipped with a detector, to measure the percent reflectance across the whole visible...

Hold out as it relates to paper is a function of the type and amount of coating. Because it affects how much the ink penetrates into the sheet, it can also affect dry rate, and adhesion of the ink to the paper.