Knife Folders
A knife folder works by striking the paper with a knife between two rollers. This knife is not sharp enough to cut through the paper and simply strikes and creases the paper along the line where the fold is required. Ideally, knife folding is used with thick paper, for "cross folds" (commonly employed for maps and also known as a "French fold") or if the paper has been stitched during the folding process; stitched sheets can ruin high friction rollers.
Read more about this topic: Folding Machine
Famous quotes containing the words knife and/or folders:
“I loved. And a man will guard when he loves.
Their white-gowned democracy was my fair lady.
With her knife lying cold, straight, in the softness of her sweet-flowing sleeve.”
—Gwendolyn Brooks (b. 1917)
“I have known the inexorable sadness of pencils,
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All the misery of manilla folders and mucilage,
Desolation in immaculate public places,”
—Theodore Roethke (1908–1963)