Effect of Dispersing Agents on the Quality of Water Based Inkjet using Black Pigment

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Abstract:

Objective of the present research was to study some dispersing agents for carbon black pigment in an aqueous based inkjet ink. The experiment tested on 6 different surfactants which were alcohol ethoxylate, ethylenediamine ethyleneoxide propyleneoxide blockcopolymer, polypropylene glycol blockcopolyme, sodium dodecyl sulphate, sodium polycarboxylate and polymerized naphthalene sulfonate having CMC in a range of 0.01 to 1 %wt studied by measuring surface tension and conductivity of their solution. The black pigment sediment was observed by leaving on a shelf for 30 days. The amorphous particle of the carbon black pigment had a size average in a range of 0.14-0.24 μm dispersed in the inks. The pigmented inks prepared from polymeric dispersants: alcohol ethoxylate and polymerized naphthalene sulfonate gave a high optical density. The pigmented inks which had a small and narrow size distribution gave good inkjet printing runability comparatively.

Document Type: Research Article

Publication date: January 1, 2008

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  • 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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