The five types of printing presses used for flexographic printing are the stack type, central impression cylinder (CIC), in-line, newspaper unit, and dedicated 4-, 5-, or 6-color unit commercial publication flexographic presses. All five types employ a plate cylinder, a metering cylinder known as the anilox roll that applies ink to the plate, and an ink pan. Some presses use a third roller as a fountain roller and, in some cases; a doctor blade for improved ink distribution is applied.
Enclosed doctor blade systems (sometimes called chambered doctor blade systems) improve print quality and provide environmental benefits. With the use of these systems also is a tremendous economic and environmental compliance advantage.
All containers should be kept closed at all time unless adding or removing contents. This is a requirement when handling regulated wastes (hazardous, non-hazardous and universal wastes). It is also an EPA Air Emission Control requirement. Reference 40 CFR 262.34(c), 40 CFR 273.13, 40 CFR 273.33, and 40 CFR Part 63-70.
All containers must be labeled. Reference 29 CFR 1910.1200(g).
Unless exempted by the regulation, every container of hazardous chemicals to be used in the workplace must have the chemical identity, physical and health hazards, together with the name and address of the manufacturer, importer, or distributor. OSHA requires that manufacturers, importers or distributors label containers in a manner that will not conflict with DOT marking and labeling requirements.