Classification of printing methods based on the relative position of the graphic and non-graphic areas on the plate
(1) Letterpress printing, the graphic part of the printing plate is convex, which is obviously higher than the blank part. The printing principle is similar to the seal. The early woodblock printing, movable type printing and later typeface printing are all letterpress printing.
(2) Gravure printing, the graphic part of the printing plate is lower than the blank part, and is often used for printing of securities such as banknotes and stamps.
(3) In lithographic printing, the graphic part and the blank part of the printing plate are almost in the same plane, and the printing is performed by the principle that the oil and water are incompatible.
(4) stencil printing, 【 Film Lamination Machine 】the graphic part of the printing plate is a hole, the ink is transferred to the surface of the substrate through the hole, and the common stencil printing has a hollow version and a screen version.
Sorting printing methods according to the paper feeding method of the printing press
Flat paper printing: also known as sheetfed printing. It is printed on flat paper.
Web printing: also known as rotary printing. It is a method of printing on a web.
Sort printing methods based on whether the plate is in contact with the substrate
Direct printing:【 Lamination Machine Manufacturer 】The ink on the plate is printed directly in contact with the substrate. Such as letterpress printing, gravure printing, screen printing.
Indirect printing: A printing method in which the printing plate ink is transferred onto a substrate by a blanket.
