692 DRYING THE SHEETS. To ascertain whether a piece of paper is cut straight — that is, to the shape of a perfect rectangle — double it up diagonally, and, if the sides coincide, it is correct, but if not, the inaccuracy will be immediately apparent. If the sheet is crooked, work to the top and… … drying rack. be exposed to the atmosphere a sufficient length of time to let the ink set firmly. When dry paper and quick drying ink are used, the ex¬ posure each sheet gets on the heap before the next is placed on it is generally sufficient ; but if the forme is solid, the sheets may well be…
Printing · Color printing
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