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Pigment Yellow 1 - a Viable InkJet Alternative to Pigment Yellow 74

机译：颜料黄1-颜料黄74的可行替代品

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摘要

Polymer-free inkjet dispersions, based on Pigment Yellow 74, cocrystallized with ionic synergists, allow for high pigment loading and formulation flexibility. However they suffer from sensitivity to various ink cosolvents and surfactants. Structural factors, responsible for such instability originate from the substitution pattern in the aromatic rings ofPY74. This pattern can be changed by using Pigment Yellow 1 and its analogs instead. The dispersions based on PY1 family show remarkable stability of particle size in presence of surfactants and micelle-forming solvents even at very high loadings. The color shade of these pigments can be changed from greenish-yellow to orange by cocrystallization. The prints, obtained with PY1-based inks have much better lightfastness than PY74 prints.
机译：基于颜料黄74的无聚合物喷墨分散体，与离子增效剂共结晶，可实现较高的颜料负载量和配方灵活性。但是，它们对各种油墨助溶剂和表面活性剂敏感。造成这种不稳定性的结构因素源自PY74芳香环中的取代模式。可以通过使用颜料黄1及其类似物来更改此模式。基于PY1家族的分散体即使在非常高的负载量下，在存在表面活性剂和形成胶束的溶剂中也表现出出色的粒径稳定性。通过共结晶，这些颜料的色泽可以从绿黄色变为橙色。使用基于PY1的油墨获得的印刷品具有比PY74印刷品更好的耐光性。

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