May remain in ink fountains for long periods without drying. Eliminate set off, thus avoiding the need for anti-offset sprays. Eliminate ventilated storage of sheets during oxidative drying. Uses less solvent than heat-set inks. IPA emissions can cause air pollution problems and may require the installation of pollution control equipment.
Substitutes are available.
Operation adjustments may be required to make low-IPA solutions work well, but the alternative cost of air pollution control equipment installation can make the effort economically worthwhile. Waste Solvents Rags become contaminated with ink and solvent. Depending on the solvent used, contaminated, non-saturated rags amy not be considered hazardous waste by the federal and state government if they are laundered and reused. However, contaminated rags to be disposed may be considered hazardous. These diposable rags must be stored separately from municipal trash and transported according to hazardous waste regulations.