Abstract
The complex research for the changes in the properties of the printing plates’ printing and gap elements influenced by the printing process was conducted, that allowed to determine the change of printing and gap elements’ surface microgeometry, also to determine the change of the oxide layer stability, and to explain the decrease of the ink receptivity coefficient. The mathematical regression equation model of the printing plates’ elements’ impact onto the imprints’ optical density in offset printing was developed, that allows estimating and predicting properties of modern brand of printing plate.
Highlights
In the printing industry the demands to the quality of printed products are constantly increas ing, so the solution to ensure sta ble printing process parameters over the entire printrun is especial ly important
Referring to the stated above, the model the printing form sur face structure is characterized by a certain primary hyperfine oxide layer which forms the printing technical properties of the gap elements, and provides the adhe sive strength for fixing the printing elements [2,3,4,5,6]
The chemical analysis of the non printing gap elements surface on the offset printing plates was explored by X ray spectral analy sis method on X ray spectral unit JOL Super Probe 733, tempera ture programmed desorption mass spectrometry on mass spectrometer MX 7304
Summary
In the printing industry the demands to the quality of printed products are constantly increas ing, so the solution to ensure sta ble printing process parameters over the entire printrun is especial ly important. In the last decade, there are virtually no studies on the current range of printed forms surface interaction with a wide range of the develop ing and washout substances; the impact of the printing contact parameters and consumables on the printing elements properties and on the stability of gap ele ments is not researched as well Research in this area reveals the nature and mechanism of these phenomena in printing contact, allowing to develop technological instructions for the rational use of specific modern material types according to the requirements of printed products, while stabilizing their production [1, 2]. Referring to the stated above, the model the printing form sur face structure is characterized by a certain primary hyperfine oxide layer which forms the printing technical properties of the gap elements, and provides the adhe sive strength for fixing the printing elements [2,3,4,5,6]
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