Covalent attachment of polymers onto macromolecular chromophores by nucleophilic substitution reaction for inkjet printing
申请人:Hewlett-Packard Company
公开号:EP0976798A1
公开(公告)日:2000-02-02
The present invention relates to ink-jet ink compositions that comprise macromolecular chromophores having functional groups covalently attached for water solubility. Moreover, the MMCs have polymer chains covalently attached to the pigments by nucleophilic substitution to provide enhanced smearfastness, enhanced print quality, improved bleed control, and improved resistance to water when applied to the media. These inks have good viscosity and surface tension, are more soluble in organic solvents and are, therefore, useful in ink-jet printing, including thermal ink jet printing, piezoelectric ink jet printing, and continuous ink jet printing.
本发明涉及由大分子发色团组成的喷墨墨水组合物,这些大分子发色团具有共价连接的官能团,可溶于水。此外,大分子发色团通过亲核取代的方式共价连接到颜料上的聚合物链可增强涂抹牢度,提高打印质量,改善渗色控制,并在应用于介质时提高耐水性。这些油墨具有良好的粘度和表面张力,更易溶于有机溶剂,因此适用于喷墨打印,包括热喷墨打印、压电喷墨打印和连续喷墨打印。