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Please note that the Topic Hubs developed by this Center have been archived and are no longer being updated.
GLRPPR has converted several of its Topic Hubs to LibGuides, which allowed for integration of some social features. View the converted hubs, as well as other LibGuides related to pollution prevention and sustainability, in the University of Illinois' LibGuides Community.
Archived: P2Rx no longer updates this information, but it may be useful as a reference or resource.
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Printing-Flexography: Operations
This section describes the working process of printing and specifically that
of flexographic printing. Input/Output process diagrams are provided. Tables
provide typical material inputs and waste outputs based on the production process
and individual departments commonly found in a flexographic printing operation.
PREPRESS - Imaging Process (Overview):
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Inputs |
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Waste Outputs |
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Film |
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Exposed film, waste and out-of-date film |
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Paper |
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Scrap paper |
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Markers and Sprays |
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Air vapors and odors |
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Film Developer |
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Spent film developer |
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Film Developing Fixer |
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Spent film developing fixer and the silver from the film |
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Wash Water |
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Used rinse water containing film developer & fixer |
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Shop towels and other wipers |
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Rags containing solvents, waste paper from disposable towels |
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Cleaning Solutions |
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Waste solvents, air vapors, and odors |
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Chemical Storage |
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Empty chemical containers, full containers with the potential to
spill |
PREPRESS - Platemaking Process (Overview):
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Inputs |
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Waste Outputs
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Rubber, Neoprene, Nitrile, Buna-n Plates |
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Damaged or unusable plates, waste trim materials, paper and plastic
waste, waste silver halides from silver master plates |
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Water |
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Contaminated process wash water |
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Plate Processing Solvent or Water |
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Waste plate processing (washout) solvent or water |
PRODUCTION - Printing Process (Overview):
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Inputs |
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Waste Outputs
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Ink |
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Waste ink, hazardous waste, non-hazardous special waste (some states), air emissions |
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Water |
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Waste water used in cleaning, thinning inks (water based
only) |
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Paper |
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Off-quality specification printed material, trim scrap and make-ready waste paper |
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Plates |
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Outdated or exhausted impression plates |
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Solvents |
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Waste and dirty solvents, hazardous waste, non-hazardous special waste (some states), air emissions |
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Shop Towels |
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Rags containing inks, solvent, oils and grease, waste paper from disposable towels. Hazardous solid waste, non-hazardous special waste (some states) |
FINISHING - Post Press Operations (Overview):
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Inputs |
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Waste Outputs
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Paper |
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Reject prints and trim scrap |
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Adhesives/Glue |
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Overspill and emissions |
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Shipping Boxes |
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Used boxes, shipping materials |
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Shop Towels |
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Rags containing inks, solvent, oils and grease, waste paper from disposable
towels, hazardous solid waste, non-hazardous special waste (some states) |
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Water |
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Waste wash water containing adhesives and solvents, hazardous liquid waste, non-hazardous special waste (some states), non-hazardous process waste |
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Solvents |
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Waste and dirty solvents, hazardous waste, non-hazardous special waste (some states), air emissions |
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