Acoustic characterisation of film splitting in a HSWO printing nip
Date
2007
Authors
Voltaire, Joakim
Mattila, Ulla
Fogden, Andrew
Nieminen, Susanna
Journal Title
Journal ISSN
Volume Title
Publisher
AB SVENSK PAPPERSTIDNING
Abstract
An acoustic technique for investigation of ink film splitting was further developed and applied to monitor printing of light weight coated (LWC) papers on a heat-set web offset (HSWO) press. The acoustic average power from the nip exit was found to decrease with decreasing ink amount and ink tack and increasing fountain solution amount. When printing on the lower side, the average power increased with surface pore area of the LWC papers, presumably connected to tack build during the extended contact time with the blanket. The method is non-destructive, statistical, and readily automatable, with applications both as on-line sensor and research tool for probing dynamic interactions during ink transfer.
Description
Keywords
Keywords: Acoustic emissions; Ink; Printing; Acoustic average power; Thin films; Film Splitting; Fountain Solutions; Ink; Printing Acoustic emission; Film splitting; Fountain solution; HSWO; Ink; LWC; Tack
Citation
Collections
Source
Nordic Pulp and Paper Research Journal
Type
Journal article