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首页> 外文期刊>Journal of Imaging Science and Technology >Preparation of Waterborne Nanoscale Pigment Dispersions for Formulation of Ink Jet Inks
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Preparation of Waterborne Nanoscale Pigment Dispersions for Formulation of Ink Jet Inks

机译：水性纳米颜料分散体的制备用于喷墨油墨的配制

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Textile ink jet printing as a new dyeing method with higher resolution, lower pollution, and shorter run length has attracted more and more people's attention. Pigment inks have become one of the main colorant materials in this technology for their excellent light fastness and their suitability to all sorts of textiles. However, most organic pigments of low polarity are hard to wet and disperse in aqueous media, therefore the organic pigments must be modified before their application. In this research, waterborne nanoscale pigment dispersion including Copper Phthalocyanine blue (P.B.15:3), Quinacridone Red pigment (PR.122), and Monoazo Yellow pigment (P. Y 14) have been prepared by the phase separation method and by the method of direct milling with dispersants, respectively. The properties (stability, particle size, and apparent viscosity) of dispersions prepared by the different methods were compared. The results show that the pigment dispersion has higher stability to alcohols, temperature, and storage, and also lower viscosity; the phase separation method was more suitable to preparation of pigment dispersion for formulations of ink jet inks than the method of direct milling with dispersants; TEM images indicated that the pigment particles were uniformly distributed in aqueous media, and the x-ray diffraction spectra indicated that the pigment crystal structure was unchanged after encapsulation in the phase separation method.
机译：纺织喷墨印刷作为一种高分辨率，低污染，运行时间短的新型染色方法，越来越受到人们的关注。颜料油墨具有出色的耐光性和对各种纺织品的适用性，已成为该技术中的主要着色剂之一。但是，大多数低极性的有机颜料很难润湿和分散在水性介质中，因此，在使用前必须对其进行改性。在这项研究中，通过相分离法和该方法制备了包括酞菁铜铜（PB15：3），喹ac啶酮红颜料（PR.122）和单偶氮黄颜料（P. Y 14）的水性纳米级颜料分散体。分别与分散剂直接研磨。比较了通过不同方法制备的分散体的性质（稳定性，粒度和表观粘度）。结果表明，颜料分散体对醇，温度和储存的稳定性更高，粘度也较低。相分离法比直接用分散剂研磨的方法更适合于制备用于喷墨油墨配方的颜料分散体。 TEM图像表明，颜料颗粒均匀地分布在水性介质中，X射线衍射光谱表明，相分离法包封后，颜料晶体结构没有变化。

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