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The Study of the Relation Image Quality the Physical Properties of Inkjet Ink

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The optical density could be increased by controlling the ink viscosity during the imaging process in which inks were more concentrated and by controlling the dynamic surface tension. By using inks that showed a faster increase in viscosity during the imaging process, more pigments remained on the paper surface. The higher viscosity of the ink appeared to reduce the forces that caused the ink to penetrate deeply into the paper fibers. On the other hand, non-printed areas on the paper reduced when the dynamic surface tension of the ink was lower. It appeared that the lower dynamic surface tension of the ink increased the forces that caused the ink dot expansion on the paper. The dot size on the printed paper was found to have the correlation with the dynamic surface tension in short time range (10−3s range). However, no correlation could be seen between the static surface tension and the dot size. It is thought that the ink layer is formed in several micro seconds after the ink drops contact on paper.

Document Type: Research Article

Publication date: 2012-01-01

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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