With the worldwide paper shortage, printers are resorting to using more accessible paper that can be lower in quality and/or brighter paper that often contains higher amounts of calcium carbonate (which is a filler used to whiten paper). Once this calcium carbonate mixes with the fountain solution salts it creates a calcium glaze over the ink rollers, plates, and blankets that is insoluble to water, solvent and oil. Certain inks also contain calcium which further compounds the issue.
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