Web offset press

Web Heat-Set Publication and Commercial Inks. Almost all heat-set inks are now printed on web offset presses, and are based on vehicles containing synthetic resins and/or some natural resins. These are dissolved in hydrocarbon solvent fractions which are specially fractionated for use in the ink industry. They vary in boiling range between 180 and 300 °C. Small percentages of alkyd resins (qv) may be contained in these inks. They dry in less than one second by means of solvent evaporation in a heatset oven. These ovens utilize high velocity hot air to raise the web temperature to 120-150 °C. 

G. R. Lester, andJ. C. Summers "Poison-Resistant Catalyst for Purification of Web Offset Press Exhaust," presented at Air Pollution Control... 

Low-voltage EB equipment on web offset press. (Courtesy of PCX Engineered System, LLC). 

The poisoning of a Pt/Pd catalyst by phosphorus deposition in an application for the oxidation of solvent hydrocarbons in the exhaust from a web offset press was reported by Lester and Summers. ... 

Offset lithography is the most common process used for printing on paper. It is used for folding carton stock and for can and bottle labels. Most lithographic presses are sheet fed, although there are some web-fed presses. A particular application of offset lithography is the printing of flat metal sheets that are then... 

Uses Coating binder for paper/paperboard, size press, wallpaper applies., esp. mod. gloss level publication grades and matte and dull grades Features Outstanding wet and dry pick resist. exc. blister resist, for web offset grades... 

EB curing/drying systems have been successfully integrated into multicolor web offset printing presses for printing of liquid packaging and folding carton stock. Other commercial applications include... 

Better print fidelity and sharper images attained on offset (both sheet and web fed), letterpress, and rotogravure printing presses... 

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