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It is a shaded watermark first used in 1848 that incorporates tonal depth and creates a greyscale image. Instead of using a wire covering for the dandy roll, the shaded watermark is created by areas of relief on the roll's own surface. Once dry, the paper may then be rolled again to produce a watermark of even thickness but with varying density.
Modern papermaking techniques use a dandy roll to create the laid pattern during the early stages of manufacture, similar to the way a watermark is added to handmade papers. While in the wet state, the paper stock (a dilute dispersion of the cellulose fibers in water) is drained on a wire mesh to de-water the stock.
1 Addition plz: digital watermark. 1 comment. 2 Money. 1 comment. 3 Did John Marshall invent the Dandy Roll? 4 @Nixxx:https: ...
Crayola is making colorful history! For the first time in the company’s more than 120-year history, the brand is bringing back eight previously retired colors. Dandelion, Blizzard Blue, Magic ...
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The U.S. Surgeon General's warning of an increased risk of cancer from drinking alcohol may end up resonating most with younger Americans - who in recent years were already turning to mocktails ...
Beloved ESPN basketball commentator Dick Vitale will make his return to broadcasting on Jan. 25 for Duke vs. Wake Forest basketball, the network announced Friday.. Vitale, 85, has battled four ...
True watermark. A true watermark is a recognizable image or pattern in paper that appears lighter or darker than surrounding paper when viewed with a light from behind the paper, due to paper density variations. A watermark is made by impressing a water coated metal stamp or dandy roll onto the paper during manufacturing.