Back to articles
Articles
Volume: 19 | Article ID: art00046_1
Image
The Influence of Pigment Selection on Particle Size and Migration Stability in Aqueous Inkjet Inks
  DOI :  10.2352/ISSN.2169-4451.2003.19.1.art00046_1  Published OnlineJanuary 2003
Abstract

The aqueous pigmented inkjet ink formulator is faced with a large number of potential commercially available grades of organic pigment. This paper presents data that explores the link between the properties of some commercially available organic pigments and (i) the particle size achievable in dispersed form and (ii) the subsequent effects on the stability of the dispersion to particle migration. Different grades of the same organic pigments from several manufacturers were dispersed under equivalent conditions and particle sized using Photon Correlation spectroscopy. Ink jet inks were formulated from these dispersions and the propensity to settling was measured using a Turbiscan stability analyser. The results show a clear correlation between rate of sedimentation and particle size. The effects of particle size are less pronounced as ink viscosity increases. Correlation with the available physical parameters of the pigment powder is not always clear, however the study shows the importance of selection of the appropriate grade of pigment in optimising the achievable particle size. Examples are shown that illustrate the colouristic advantages of reduced particle size.

Subject Areas :
Views 8
Downloads 1
 articleview.views 8
 articleview.downloads 1
  Cite this article 

Peter Rose, Nick Walker, "The Influence of Pigment Selection on Particle Size and Migration Stability in Aqueous Inkjet Inksin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP19),  2003,  pp 190 - 193,  https://doi.org/10.2352/ISSN.2169-4451.2003.19.1.art00046_1

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2003
72010410
NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA