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Charge Impartation Capability of CCA Nano-particles Deposited on the Surface of Core-shell Type Chemical Toner

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For the purpose of controlling the amount of tribo-charge on core-shell type toner, the charge impartation capability of a charge control agent (CCA) particles in the shell layer was investigated. Spherical acryl cores (Ac-core) having a particle size of 10 μm or Ac-cores having a styrene-acryl particle shell on their surface (St-Ac/Ac-cores) were used as core particles. As the CCA particles, Trianilino-triphenyl methane sulfate (TATPM, positive type CCA) particles were used. Nanometer sized TATPM particles and St-Ac particles were coprecipitated onto a core particle surface to form a positive charge imparting shell. The amount of tribo-charge q/m generated between the core-shell type particles and carrier particles was measured by the blow-off method. It was confirmed that a shell which contained an extremely small number of CCA particles shows remarkable positive charge impartation capability. The result suggests a promising manufacturing process for new types of chemical toners that realizes control of the amount of tribo-charge easily and accurately.

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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