摘要:
A phase change ink composition includes an ink vehicle and at least one pigment, wherein the ink composition is substantially solid at room temperature and includes at least one dispersant for the at least pigment and at least one synergist.
摘要:
A synergist for pigment in a solid ink having the following formula: where n is 1, 2, 3, or 4, X represents a metal, ammonium, or quaternary ammonium, R1, R2, and R3 independently represent H, C1-C20 alkyl, C1-C20 alkoxy, and halogen, A solid ink including the synergist having the above formula.
摘要:
A method of making a phase change ink composition includes adding to a device with a stirring element at least one pigment, at least one dispersant and at least one synergist, processing the device at an elevated temperature and at a stirring rate to wet the at least one pigment to obtain an ink concentrate, and mixing the ink concentrate with an ink vehicle to obtain the ink composition. The device may be an extruder, an attritor or the like. The method allows for the reduction in the amount of dispersant to include in the ink.
摘要:
A phase change ink having an ink vehicle, at least one colorant and dispersants, such as at least one polyalkylene succinimide, at least one triamide and/or at least one rosin ester. The dispersants assist in dispersing colorants, such as pigments like carbon black, in non-polar ink vehicles. Also, disclosed are methods of making such phase change inks.
摘要:
A light-cyan solid ink including an ink vehicle and a colorant. The colorant includes a cyan colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 500 to about 600 run, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm.
摘要:
A light-magenta solid ink including an ink vehicle and a colorant. The colorant includes a magenta colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 600 to about 700 nm.
摘要:
The present disclosure provides for the process for preparing a solid inkjet ink using a pigment flush. One process includes applying a first mixing step to a pigment and a flushing agent to flush the pigment from am aqueous phase to a non-aqueous phase to form a pigment dispersion, adding at least one other ink ingredient, and incorporating the other ink ingredient in the pigment dispersion by applying a second mixing step to form a solid inkjet ink. Another process disclosed includes adding at least one ink ingredient directly to a pigment dispersion and mixing by applying a high shear mixer.