Only small ink adjustments should be made at press make-ready, balancing the sheet for color that can be maintained during the run of the job. In addition to the finite color adjustments, the person charged with approving the sheet should watch for crisp reproduction of the |
dot structure to assure clean printing. And a check of the inks on the sheet will reveal if the ink “tack” (thickness or density) is high enough to achieve the desired ink gloss on the paper. Too low an ink tack will result in a washed-out look. However, if the ink
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tack is too high, the ink might not dry fast enough to give the proper gloss. Longer ovens, which allow more drying time, are now available on newer web presses thus minimizing this potential problem.
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