From the course: Print Production: Folding
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The role of scoring
- It would be irresponsible to create a course about folding within dedicating time and energy to the topic of scoring. Paper is fiber-based, and the mechanical folding process causes a lot of stress to the sheet, so the fibers and the coding on the sheet can crack and expose and ugly, rough texture at the fold. This is most noticeable on a fold against the grain of a heavy sheet. And if there's solid ink coverage across that fold, you'll really notice it. Scoring is the best way to alleviate this problem. Scoring is the process of creasing the sheet of paper to compress the paper fibers and decrease stiffness, enabling a high quality fold. There are several ways to score. A Litho Score, or Press Score, allows the application of a score in line while the job is on press. A thin metal rule, kind of like the thickness of a cookie cutter, is adhered to the impression cylinder on the press. Metal rules can cut, crease, or perforate. In this case, the scoring rule creases the sheet as it…
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