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Preparation of Nanoscale Phthalocyanine Blue Pigment Dispersion for Inkjet Printing Inks With Polymerizable Dispersant

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Nanoscale phthalocyanine blue pigment dispersion was prepared using allyloxy Nonyl-phenoxy propanol polyoxyethylene ether ammonium sulfate (ANPS) as dispersant, the effect of amount of ANPS and milling time on particle size were investigated, the further performance of the prepared dispersion was also measured. The results showed that the optimal process condition was that the weight ratio of dispersant to pigment 20%, milling speed 1800r/min for 2 hours. The dispersion which prepared as these conditions had small particle size and narrow particle size distribution, the particle size changed small when the dispersion was treated below 60°C and almost remained the same when pH value was in the range of 6 to 10. The absorbance changed little when the dispersion was centrifuged below 4000r/min for 30min. The fluidity of the dispersion shows shear thinning behavior.

Document Type: Research Article

Publication date: January 1, 2009

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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