Search results
Results from the WOW.Com Content Network
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 ...
A correction fluid is an opaque, usually white fluid applied to paper to mask errors in text. Once dried, it can be handwritten or handdrawn upon. It is typically packaged in small bottles, with lids attached to brushes (or triangular pieces of foam) that dip into the fluid. The brush applies the fluid to the paper.
The master is placed on the gelatin and spirits applied to transfer the ink from the master to the gelatin. After transfer of the image to the inked gelatin surface, copies are made by pressing paper against it. When a pad ceased to be useful, the gelatin could be soaked with spirits, the ink sponged away, and the pad left clean for the next ...
Through conduction from the paper, the powder temperature rapidly increases and starts melting. When the process is correctly adjusted, the center of the largest filmed areas reach sufficient quality level as the product exits the heater. The melted ink then solidifies as the product cools. This process is sometimes produced using manual powdering.
Tropical Storm Sara is "meandering" off the coast of Honduras, bringing heavy rain, “catastrophic” flooding and mudslides to portions of Central America, forecasters say.
A major problem with soy ink is that it takes more time to dry than petroleum-based inks, due to its lack of evaporative solvents in the form of VOCs. [4] This creates challenges for some printing presses, especially those that use coated papers (such as magazines) instead of porous, uncoated paper (such as newspapers) where the ink can dry via absorption or IR in-line heaters.