摘要:
A light-cyan radiation-curable gel ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, 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 nm, 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 radiation-curable gel ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, 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:
A pigment dispersion includes a pigment and a dispersant, wherein an as formed curable phase change ink having the pigment dispersion added thereto, when filtered using a 1 micron filter at a temperature of 85° C., has a slope of ≧5 g/s and a T2/T1 of ≦1.6, wherein T2 represents a time to filter the last 25 g of a 100 g sample of the phase change ink through the 1 micron filter at 85° C., while T1 represents the time it takes to filter the first 25 g of the 100 g sample of the phase change ink through the 1 micron filter at 85° C.
摘要:
Disclosed herein are methods of using inks with gellants, that can form a gel state, as receivers for particle materials. The inks are liquid when jetted, but quickly enter a tacky/semi-solid/gel state when cooled below ink gel temperature on a substrate and prior to curing. Dry powders and solid particulate substances of various types are then applied to the jetted inks and locked in place when the ink is cured.
摘要:
A system and method for creating an authentication mark on a recording medium by depositing marking material on a medium in an image area to create a marking material image and to create a marking material authentication image. The method comprises (a) depositing marking material directly onto a recording medium in an image area to create a marking material image and in an authentication image area to create a marking material authentication image, wherein the marking material is an ultraviolet curable phase change ink composition comprising an optional colorant and a phase change ink vehicle comprising a radiation curable monomer or prepolymer; a photoinitiator; a reactive wax; and a gellant; (b) depositing a predetermined amount of additional marking material upon the authentication image area to increase an amount of marking material associated with the marking material authentication image in the authentication image area; and (c) curing the marking material upon the recording medium such that the fixed marking material associated with the authentication image area is a tactilely perceptible authentication mark, the fixed marking material associated with the tactilely perceptible authentication mark having a first height, the first height being tactilely perceptible.
摘要:
Disclosed herein are amide gellant compositions with aromatic end-caps consisting of a blend of oligomers (dimer, trimer, tetramer and pentamer) that may be optimized to stable gelling viscosity and controlled showthrough of printed inks.
摘要:
Curable, phase-change compositions and inks used for printing three-dimensional objects including a curable monomer, a photoinitiator, a wax and a gellant, where the composition of the cured formulation has a room temperature modulus of from about 0.01 to about 5 Gpa. The curable monomer includes acrylic monomer, polybutadiene adducted with maleic anhydride, aliphatic urethane acrylate, polyester acrylate, 3-acryloxypropyltrimethoxysilane, or acryloxypropyl t-structured siloxane.
摘要:
Curable solid inks and low shrinkage curable solid inks which are solid at room temperature and molten at an elevated temperature at which the molten ink is applied to a substrate. In particular, the solid inks of the present embodiments retain the advantages of handling, safety, and print quality usually associated with conventional solid phase change inks but provide additional breakthrough performance characteristics such as enhanced robustness, lower jetting temperature, and ultra-low shrinkage upon crystallization, which allow the inks to be used as novel materials in inkjet-based Braille and raised print applications.
摘要:
Curable phase change inks contain an ink vehicle, a pigment and a dispersant. A base ink set is of colored phase change inks that utilize the same dispersant, and also desirably contain the same amount of the dispersant. This allows the different color curable phase change inks to be mixed together while avoiding incompatibilities between each other, resulting in custom colors and a reliable expanded color gamut for the base ink set. Also, a method of forming images with the custom color curable phase change inks is disclosed.
摘要:
Curable solid ink compositions, which include a curable wax having a melting point under 40° C. as part of the ink vehicle, and are suitable for ink jet printing in applications that require high and/or variable levels of gloss. In particular, there is provided a novel high gloss, ultraviolet (UV) curable, phase change ink composition that includes a colorant and an ink vehicle that further includes a gellant, a reactive diluent, a photoinitiator package, and a curable acrylate wax.