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Offset ink is a specific type of ink used in conjunction with offset printing presses, such as those used to produce letterpress or lithography prints. Such ink must be specially formulated to resist other chemicals it will come in contact with on the printing press.
A composition roller is a tool used in letterpress printing to apply ink to a bed of type in a printing press. It consists of a cylinder made of a substance known as "roller composition" or simply "composition", a mixture of hide glue and sugar (in the form of molasses or treacle ), with various additives such as glycerin depending on the ...
Cooperative efforts from press, ink and paper manufacturers helped to support the product, and the overall market acceptance was very good. The first North American demonstration of the waterless process was at Print '80, and with the introduction of the negative (TAN) type plate in 1982 this market could be seriously pursued.
The diameter of the powder used is relative to the density (g/m 2) of the stock (paper or board) being printed. For 150 g/m 2 paper the ideal anti-set-off spray powder would be 15 μm in diameter, for 200 g/m 2 20 μm, through to 70 μm for heavy board (700 g/m 2). Most manufactures of spray powder offer both coated and uncoated powders.
Thinner traps are less visible. Therefore, the trap width is set to a strict minimum, dictated by the maximum amount of misregistration of the entire workflow up to the press. When printing at 150 lpi, traps are usually between 1/150 and 1/300 inch (0.48 pt and 0.24 pt, 0.16 mm and 0.08 mm). These values are usually multiplied by 1.5 or 2 when ...
Thermal-transfer printing is done by melting wax within the print heads of a specialized printer. The thermal-transfer print process utilises three main components: a non-movable print head, a carbon ribbon (the ink) and a substrate to be printed, which would typically be paper, synthetics, card or textile materials.
Zink (stylised as ZINK, a portmanteau of zero and ink) is a full-color printing technology [1] for digital devices that does not require ink cartridges and prints in a single pass. [ 2 ] The printing technology and its thermal paper are developed by Zink Holdings LLC, a U.S. company, with offices in Edison, New Jersey , and Billerica ...
Solid ink technology utilizes solid ink sticks, crayons, pearls or granular solid material instead of the fluid ink or toner powder usually used in printers. Some types of solid ink printers use small spheres or pucks of solid ink, which are stored in a hopper before being transferred to the printing head by a worm gear or melted as needed.