High light fastness disazo dyes for inkjet printing

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Water-soluble dyes have good solubility, brightness and long shelf life, but higher penetration, poor water and light fastness compare with pigment colorant on printing paper. How to increase light fastness of dyes is always an important issue on inkjet printing for photo. Dye containing carboxyl groups could improve water fastness had been studied but lacked off light fastness information [1,2,3].

In this paper, a series of disazo dyes which diazonium group contained carboxyl groups and methoxyl groups included navy blue, red and yellow components were synthesized and evaluated showing good light fastness and high color strength.

These diazo compositions form deep black shade and have been approved with high color strength and light fastness performance compared with commercial market product. This range of product is easy dissolved in aqueous and has good printing performance on inkjet application.

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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