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This technique produces blue lines on a white background. The drawings are also called blue-lines or bluelines. [12] [13] Other comparable dye-based prints were known as blacklines. Diazo prints remained in use until they were replaced by xerographic print processes. Xerography is standard copy machine technology using toner on copy paper.
After exposure, the paper is developed by washing in cold running water: the water-soluble iron(III) salts are washed away. The parts that were exposed to ultraviolet turn blue as the non-water-soluble Prussian blue pigment remains in the paper. This is what gives the print its typical blue color. [22] The blue color darkens upon drying.
Cornelis Norbertus Gijsbrechts, Trompe l'oeil with letters and a roll of blue paper. Blue paper (known in Italian as carta azzurra, carta cerulea, and carta turchina) has often been used as a support for drawings and prints by artists. [1] With its inherent middle tone, blue paper is a particularly effective material for rendering the effects ...
Non-photo blue (or non-repro blue) is a common tool in the graphic design and print industry, [1] [2] being a particular shade of blue that cannot be detected by graphic arts camera film. This allows layout editors to write notes to the printer on the print flat (the image that is to be photographed and sent to print) which will not show in the ...
Toilet paper sold on a cardboard roll appeared in the 1890s, and in 1928, Wisconsin's Hoberg Paper Co. started producing and selling a softer version of this paper. ... and "blue jeans" as we know ...
Whiteprint plan copy. USSR whiteprints. 70s. Whiteprint describes a document reproduction produced by using the diazo chemical process. [1] It is also known as the blue-line process since the result is blue lines on a white background.
When piecing together a vintage-inspired color palette, she suggests shades such as classic steely blue, eggplant, nostalgic forest and olive greens, muddy browns, and creamy off-whites.
The blue discharge was created in 1916 to replace two previous discharge classifications, the administrative discharge without honor and the "unclassified" discharge. [1] The discharges were printed on blue paper, hence the name. They were also sometimes called "blue tickets". [2]