Back to articles
Volume: 17 | Article ID: art00056_1
Reimageable Offset Master - A Close Look to the DICO Process Parameters
  DOI :  10.2352/ISSN.2169-4451.2001.17.1.art00056_1  Published OnlineJanuary 2001

The laser induced thermal transfer enables the first commercial available reimageable offset process in MAN Roland's DICOweb. Main steps of the cycle are: imaging, fixing, conditioning and de-imaging after the print run.Two surface conditions of this closed loop are of particular importance: ready to image and ready to print. To obtain good adhesion of the image the surface has to be cleaned thoroughly. That means neither any remains of the previous image nor any other contamination should be present on the substrate. In this context we investigated the influence of the de-imaging step on the surface energy and thus the adhesion. Good lithographic properties in wet offset may be characterised by a sufficient contrast of image and background concerning ink and water reception. The DICO process comprises a special conditioning step to ensure that contrast.An important parameter of a printing master is its run length stability. We examined the imaged print forms with a white light interferometer and developed a consistent model describing the connection of transfer parameters and achieved run length. Laser induced thermal transfer needs a well defined nip between donor ribbon and substrate. A configuration was developed in which appearing problems like dust and gas bubbling are solved in the DICO cycle.

Subject Areas :
Views 3
Downloads 0
 articleview.views 3
 articleview.downloads 0
  Cite this article 

Michael Schönert, Alfons Schuster, Josef Schneider, "Reimageable Offset Master - A Close Look to the DICO Process Parametersin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP17),  2001,  pp 263 - 266,

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2001
NIP & Digital Fabrication Conference
nip digi fabric conf
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA