Foundations in Graphic Communications: Checking Color Proofs

New York City College Of Technology
Advertising Design & Graphic Arts: NYCCT

The Course At A Glance

Foundations In Graphic Communications
Patrick Henry     (p) 718.847.9430     (c) 917.647.0590     (e)


"Good printing means controlling an array of production variables more complex than anything known to most other kinds of manufacturing."

• Paper is always a question mark.

• There can be defects and
inconsistencies in sheet and roll stock (e.g., flaws that cause web breaks).

• Humidity, temperature, and dirt can reduce the "runnability" paper.

• The "weather" in the pressroom could be different from the "weather" where the paper was stored. Sheet edges become wavy or tight as moisture is absorbed or lost at press-side. This can threaten registration. Paper should always be "conditioned" before running.

• Every litho press run is still a chemistry experiment.

• Ink and fountain problems: scratch-off or rub-off from poor mixing... "scumming," i.e., adhesion in non-image areas... "emulsification" turns ink to sludge when the pH of the fountain solution is too acidic...algae in the water: yuck!

• Plates can fracture or become scratched; blankets get "smashed."

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