<p>The hygroscopicity and stability of aqueous dye inks are critical factors influencing ink performance. This study systematically investigates these factors through experimental and analytical methods. Low-field nuclear magnetic resonance (LF-NMR) technology is utilized to detect changes in the state of water molecules within solutions, and the variation in T2 relaxation times provides a rapid screening method for inks with superior hygroscopicity. Additionally, changes in the peaks of the UV–visible spectroscopy are analyzed to assess the inks dispersibility. Therefore, LF-NMR and UV–visible spectroscopy not only serve as a basis for designing high-performance dye inks but also effectively evaluate ink quality. The results show that under appropriate viscosity and surface tension conditions, Ink 2 exhibits better hygroscopicity and dispersibility.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Research and preparation of low-volatility, high-stability dye inks

  • Yuyan Ren,
  • Ruyan Li,
  • Zhen Tian

摘要

The hygroscopicity and stability of aqueous dye inks are critical factors influencing ink performance. This study systematically investigates these factors through experimental and analytical methods. Low-field nuclear magnetic resonance (LF-NMR) technology is utilized to detect changes in the state of water molecules within solutions, and the variation in T2 relaxation times provides a rapid screening method for inks with superior hygroscopicity. Additionally, changes in the peaks of the UV–visible spectroscopy are analyzed to assess the inks dispersibility. Therefore, LF-NMR and UV–visible spectroscopy not only serve as a basis for designing high-performance dye inks but also effectively evaluate ink quality. The results show that under appropriate viscosity and surface tension conditions, Ink 2 exhibits better hygroscopicity and dispersibility.