Vocabulary: May 20

20 May

PRESS
Acid: (1) In lithography, a dampering solution ingredient that enables gum arabic to cling to the nonimage areas of the plate. (2) Perchloride of iron used to etch gravure cylinders. Alternative Term: etchant

Antifoaming Agent: An additive that disperses bubbles that may form in offset dampening solutions or screen printing inks during printing. Antifoaming agents are also added to plate developers and processors.

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