In addition to selecting the appropriate substrates (paper or other substrates) and printing ink, print the final effect still need through the proper way to complete the printing. Printing types have much money, method is different, have different operation, cost and effect is also different. "
According to the use of plate is different, can be divided into letterpress printing methods, gravure printing, offset printing and printing four broad categories:
(1) the letterpress plate graphic part of the bump, significantly higher than the blank parts, printing principle is similar to the seal, the early xylograph, types of printing, and then the type of printing are letterpress printing.
(2) the intaglio printing, graphic part is lower than the blank part of the plate, often used for banknotes, stamps and securities printing ?
(3) the lithographic plate picture and text parts and blank almost in the same plane, using the principle of oil and water miscibility way of printing. Hole
(4) printing, graphic part of the plate for the hole hole, ink transfer through holes to the surface of substrates, common hole printing such as hollow out version and silk screen version. |
