申请人:Hewlett-Packard Company
公开号:EP1029902A1
公开(公告)日:2000-08-23
The properties of ink-jet inks containing a colorant (pigment, macromolecular chromophore, or dye) are improved by adding thereto an additive, specifically, one or more polymers derived from unsaturated surfactants. The unsaturated surfactant(s) has at least one carbon-carbon double bond (C=C). The polymer may be simply an polymer of the unsaturated surfactant. Alternatively, the polymer may be co-polymerized with one or more vinyl monomers or one or more polymers based on the vinyl monomers may be mixed with the unsaturated surfactant polymer. The vinyl monomer(s) or polymer(s) are used to adjust or "tweak" the properties of the resultant polymer. For example, the more hydrophobic the polymer or the higher its molecular weight, then the greater the water-fastness afforded the ink-jet ink. The polymeric additive of the invention improves bleed control, water-fastness, and smear-fastness of ink-jet inks, particularly thermal ink-jet inks.
在含有着色剂(颜料、大分子发色团或染料)的喷墨墨水中加入添加剂,特别是一种或多种由不饱和表面活性剂衍生的聚合物,可改善喷墨墨水的性能。不饱和表面活性剂至少有一个碳碳双键(C=C)。聚合物可以只是不饱和表面活性剂的聚合物。或者,该聚合物可与一种或多种乙烯基单体共聚,或者一种或多种基于乙烯基单体的聚合物可与不饱和表面活性剂聚合物混合。乙烯基单体或聚合物可用于调整或 "调整 "所得聚合物的特性。例如,聚合物的疏水性越强或分子量越大,喷墨墨水的耐水性就越强。本发明的聚合物添加剂可改善喷墨墨水,特别是热喷墨墨水的渗色控制、耐水性和耐涂抹性。