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Pigment Yellow 1 – a Viable Inkjet Alternative to Pigment Yellow 74

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Polymer-free inkjet dispersions, based on Pigment Yellow 74, cocrystallized with ionic synergists, allow for high pigment loading and formulation flexibility. However they suffer from sensitivity to various ink cosolvents and surfactants. Structural factors, responsible for such instability originate from the substitution pattern in the aromatic rings of PY74. This pattern can be changed by using Pigment Yellow 1 and its analogs instead. The dispersions based on PY1 family show remarkable stability of particle size in presence of surfactants and micelle-forming solvents even at very high loadings. The color shade of these pigments can be changed from greenish-yellow to orange by cocrystallization. The prints, obtained with PY1-based inks have much better lightfastness than PY74 prints.

Document Type: Research Article

Publication date: January 1, 2010

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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