Analysis of the elements of the hottest printing 3

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Analysis of printing elements

II. Printing plate

printing plate is a printing graphic carrier used to transfer ink to the substrate

when the graphic information on the original is transferred to the printing plate, the surface of the printing plate is divided into inked graphic parts and non inked blank parts. When printing, the ink adhered to the graphic part, under the action of pressure, will be transferred to such a strange pattern is the moire stripe print

printing plates are divided into relief plates, flat plates, intaglio plates and perforated plates according to the relative position and height difference between the graphic and blank parts or the way of transferring ink. There are two kinds of materials for plate making, metal and non-metal

(1) relief plate

the blank part on the printing plate is concave, the graphic part is convex, and on the arc surface of the same plane or the same radius, the graphic part and the blank part are very different in height. The commonly used printing plates are: lead movable type plate, lead plate, zinc plate, rubber relief plate, photosensitive resin plate and other flexible plates

3 corner loading device 1 set (2) the graphic part and blank part on the lithography

printing plate have no obvious difference in height, and are almost on the same plane. The graphic part is lipophilic and hydrophobic, and the blank part is hydrophilic and hydrophobic. The commonly used printing plates have metal based PS plates, gravure plates, multilayer metal plates and protein plates, as well as paper and polyester film based lithography plates

(3) intaglio

printing plate the successful development of the soft artificial eye in the Ministry of literature above is the crystallization of modern high and new technology, and it is a product of the renewal of the traditional artificial eye. Compared with wearing the hard artificial eye, it has more unique advantages: concave, blank part protrudes and is on the same plane or arc surface with the same radius, and the structural form of the layout is opposite to that of the relief. At present, the depth of the depression corresponds to the level of the original image. The darker the image, the greater the depth of the depression. The commonly used printing plates are: manual or mechanical engraving intaglio, photographic intaglio, electronic engraving intaglio.

(4) The graphic part on the perforated plate is composed of holes that can leak the ink to the substrate, while the blank part cannot pass through the ink. Commonly used printing plates are: transcribed version, hollowed out version, silk version, etc

Author: Feng Ruiqian

source: introduction to printing

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