申请人:Xerox Corporation
公开号:US20030105185A1
公开(公告)日:2003-06-05
Disclosed is a phase change ink composition comprising a colorant and an ink vehicle, the ink being a solid at temperatures less than about 50° C. and exhibiting a viscosity of no more than about 20 centipoise at a jetting temperature of no more than about 160° C., wherein at a first temperature hydrogen bonds of sufficient strength exist between the ink vehicle molecules so that the ink vehicle forms hydrogen-bonded dimers, oligomers, or polymers, and wherein at a second temperature which is higher than the first temperature the hydrogen bonds between the ink vehicle molecules are sufficiently broken that fewer hydrogen-bonded dimers, oligomers, or polymers are present in the ink at the second temperature than are present in the ink at the first temperature, so that the viscosity of the ink at the second temperature is lower than the viscosity of the ink at the first temperature.
本发明涉及一种相变墨水组合物,包括颜料和墨水载体,该墨水在低于约50℃的温度下为固体,并在不超过约160℃的喷射温度下表现出不超过约20厘泊的粘度。在第一温度下,墨水载体分子之间存在足够强度的氢键,以使墨水载体形成氢键二聚体、寡聚体或聚合物,而在第二温度下,该墨水载体分子之间的氢键被充分破坏,使得在第二温度下墨水中存在的氢键二聚体、寡聚体或聚合物比在第一温度下少,因此墨水在第二温度下的粘度低于在第一温度下的粘度。