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首页> 外文期刊>Journal of Imaging Science and Technology >Novel Aqueous Ink Jet Technology Realizing High Imagequality And High Print Speed
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Novel Aqueous Ink Jet Technology Realizing High Imagequality And High Print Speed

机译：实现高图像质量和高打印速度的新型水性喷墨技术

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To obtain high quality color images on plain papers using ink jet printing, the authors studied a new marking technology, named "double-component liquid system (DCLS)." The DCLS technology, which uses an ink set comprising pigment inks and treatment liquid, is a design concept that achieves high speed and high image quality by utilizing pigment agglomeration and vehicle penetration. The authors found that optical density and drying time can be described by the increase in viscosity of the ink-treatment liquid combination on admixture, which simulates sequential application of these components to the substrate. They compared various agglomerating agents (organic amine, multivalent metal salt, and organic acid) in treatment liquid by this measuring method and found that both high speed and high image quality could be achieved at the same time regardless of the types of agglomerating agents. Organic acids were found to demonstrate relatively high performance. The functional mechanism of organic acids can generally be explained by pH, and it was possible to control DCLS behavior by acid dissociation constant (pKa), neutralization of organic acid, and molar concentration in treatment liquid. DCLS ink set showed high-speed drying performance of 0.6 s or less (equivalent of 100 ppm or higher) and high image quality (optical density of 1.3 or more) at the same time on a variety of plain papers without using a heater.
机译：为了使用喷墨打印在普通纸上获得高质量的彩色图像，作者研究了一种新的标记技术，称为“双组分液体系统（DCLS）”。 DCLS技术使用一种包含颜料墨水和处理液的墨水组，是一种通过利用颜料团聚和车辆渗透而实现高速和高图像质量的设计概念。作者发现，光密度和干燥时间可以通过油墨处理液组合物在混合物上的粘度增加来描述，这可以模拟将这些成分顺序施加到基材上。他们通过这种测量方法比较了处理液中各种凝聚剂（有机胺，多价金属盐和有机酸），发现无论凝聚剂的类型如何，都可以同时实现高速和高图像质量。发现有机酸表现出相对较高的性能。有机酸的功能机理通常可以通过pH值来解释，并且可以通过酸解离常数（pKa），中和有机酸和处理液中的摩尔浓度来控制DCLS行为。在不使用加热器的情况下，DCLS墨水组在各种普通纸上同时显示0.6 s或更少（等于100 ppm或更高）的高速干燥性能和高图像质量（1.3或更高的光学密度）。

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