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Study of Sulfide Solutions as Inkjet Inks for Color-changeable Ag Films

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We have recently discovered a novel and easy method for preparing color-changeable Ag films using aqueous solutions of sulfides as coloring agents. In the presence of specific sulfides such as lime sulfur solutions, the color of Ag films, initially sliver, changes to yellow, red, blue and green depending on the preparation conditions such as the dipping time in the solutions and the temperature of the solution. One of the potential candidates is in the application as imaging materials. Assuming the imaging by inkjet devices, we have already investigated the ink receiving nature to Ag films. The focus of this present work is to explore the nature of sulfide solutions which act as inks for changing the color of Ag films in the inkjet system. We found that both the solubility of sulfides in water and the nature of the hydrolyzed constituents of sulfides are important parameters for obtaining successful color-changeable Ag films in this imaging system. For example, K2S solution works well as coloring agent due to its appropriate solubility in water and KSH, one of the hydrolyzed constituents of K2S, play an important role to change the color of Ag films.

Document Type: Research Article

Publication date: January 1, 2013

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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