New Solvent Dyes with High Chroma and High Light Stability for Dye Sublimation Thermal Transfer Printer

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  • SHINTOU Taichi
    Products Technology Development Center 1, R&D Headquarters, CANON INC.
  • Shirota Koromo
    Products Technology Development Center 1, R&D Headquarters, CANON INC.
  • YASHIMA Masataka
    Products Technology Development Center 1, R&D Headquarters, CANON INC.
  • NODA Tomoyuki
    Products Technology Development Center 2, R&D Headquarters, CANON INC.
  • SANTO Tsuyoshi
    Products Technology Development Center 1, R&D Headquarters, CANON INC.

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Other Title
  • 新規な昇華転写プリンタ用高彩度高耐光油性色素

Abstract

<p>Wide-gamut printed images are desired to support vibrant displays such as quantum dot (QD) and organic light emitting diode (OLED). Developing new dyes that satisfy the characteristics of the dye sublimation transfer printer is difficult and has not changed for several decades. We here report about the development of the new solvent dyes that is high chroma and high light stability for the wide color gamut dye sublimation thermal transfer printers. In other words, we designed and synthesized azamethine magenta dye (AZD-70), azomethine cyan dye (CAZ-19), and azo yellow dye (PAY-161) as main MCY color materials. By applying the newly developed dyes to the sublimation transfer ink ribbon, a color gamut volume equivalent to that of an IJ printer could be expressed. In print tests, we observed an improvement in the general chroma of true images of morpho butterfly, lemon, and strawberry and a remarkable improvement in the black density of a true image of a betta. Each dye gave a negative Ames test result. Besides, we can utilize these development dyes for toner design, and for the supercritical carbon dioxide dyeing of polypropylene fibers.</p>

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