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CN105960332B 在附着在板材上的基底上印刷数字图像的方法和用于在基底上数字印刷的水基墨水 有权

在附着在板材上的基底上印刷数字图像的方法和用于在基底上数字印刷的水基墨水
摘要：
包含颜料混合物的水基墨水和用包含大颜料的颜料混合物和配有墨水循环系统的压电墨头在基底上形成数字印刷物的方法，所述方法包括：提供水基墨水，其包括含沉降颜料的水性颜料混合物、含丙烯酸树脂分散体的粘合剂和含二醇和/或甘油的增粘物质，提供所述颜料的位阻稳定化并调节所述颜料的尺寸和所述水基墨水的粘度以使所述颜料的沉降速度在25℃下超过大约0.001毫米/分钟，使所述水基墨水在所述至少一个压电印刷头内循环，和用所述至少一个压电印刷头通过在所述基底上施加所述水基墨水的墨滴印刷数字图像。
摘要（英）：

Water-based ink comprising a pigment mix and a method to form a digital print on a substrate with a pigment mix comprising large pigments and a Piezo ink head equipped with an ink circulation system, the method including: providing a water-based ink including an aqueous pigment mix including settling pigments, a binder including an acrylic resin dispersion, and a viscosity increasing substance including glycol and/or glycerine, providing a steric stabilization of the pigments and adapting the size of the pigments and the viscosity of the water-based ink such that a settling velocity of the pigments exceeds about 0.001 mm/min at 25° C., circulating said water-based ink within said at least one Piezo print head, and printing a digital image with said at least one Piezo print head by applying ink drops of said water-based ink on the substrate.

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