Laid finish

A type of bond paper or book paper finish imprinter with evenly spaced parallel lines that are visible when the sheet is held up to the light.
This “laid finish” is produced in the same manner as a watermark; the lines are woven from wire and attached to the surface of the dandy roll in the forming section of the papermaking machine. At the wet paper plup passes beneath it, the laid design is printer into plup, decreasing the paper opacity in the image areas. Laid paper is commonly used for company letterhead. (See Dandy Roll and Watermark).