Abstract
Purpose - Colour digital electrophotographic printing is currently in high demand. The provision of a large colour gamut depends on appropriate selection of precise colorants to produce toner capable of producing a thin layer on paper. This study reports on production of the colour digital printing toners cyan, magenta and yellow. Design/methodology/approach - Printing toner were synthesized by the emulsion aggregation method, and then evaluated for chemical constitution and effects of the colorant substituents. Findings - Results demonstrated that increasing the polarity of a pigment produced better dispersion and lower particle size with narrower distribution and even better colour reproduction. While changing a pigment’s characteristics did not affect the toner shape or its thermal properties.Practical implications - The developed method provides a simple way to synthesise colour printing toner. Originality/value - Evaluations of the influence of solid-state parameters and physicochemical properties of the pigments on printing toner characteristics were done for the first time.
Purpose - Colour digital electrophotographic printing is currently in high demand. The provision of a large colour gamut depends on appropriate selection of precise colorants to produce toner capable of producing a thin layer on paper. This study reports on production of the colour digital printing toners cyan, magenta and yellow. Design/methodology/approach - Printing toner were synthesized by the emulsion aggregation method, and then evaluated for chemical constitution and effects of the colorant substituents. Findings - Results demonstrated that increasing the polarity of a pigment produced better dispersion and lower particle size with narrower distribution and even better colour reproduction. While changing a pigment’s characteristics did not affect the toner shape or its thermal properties.Practical implications - The developed method provides a simple way to synthesise colour printing toner. Originality/value - Evaluations of the influence of solid-state parameters and physicochemical properties of the pigments on printing toner characteristics were done for the first time.
