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Latex Optimization for Emulsion Aggregation Toners with Design for Lean Six Sigma (DfLSS) Methodology

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Design for Lean Six Sigma (DfLSS) is a systematic methodology to design new products or processes so that quality is built into every phase of product design. It is also a proven process improvement methodology used for improving existing products through redesign, and currently widely being employed across chemical industry. This paper describes the application of DfLSS methodology for the formulation and process design of an improved emulsion latex for emulsion-aggregation toner application. A systematic IDOV process (Identification, Design, Optimization and Validation) was demonstrated from the point of view of the research scientist/engineer. The key customer requirements were “designed-in” via the latex key properties (Tg, Mw and particle size) and optimized through DOEs (design of experiment). The resulting latex process is more robust against several sources of variation (raw material quality, operation and equipment aging). This was accomplished through a robust design and implemented at the manufacturing scale.

Document Type: Research Article

Publication date: January 1, 2012

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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