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:
Systems and methods are provided for digital printing of Braille or other raised printing. In some embodiments, ink is printed directly from a print head onto a substrate, rather than onto a transfer drum that is later printed onto a substrate. In some embodiments, a plurality of layers of a curable, phase-change ink are printed onto the substrate, wherein pauses of a predetermined time are included in between of layers to enable the curable, phase-change ink to set up into a given shape and height. In some embodiments, temperatures of printing components are lowered from those used for traditional printing, so as to enable the curable phase change ink to set up into a given shape and height. In some embodiments, spacing of components are altered from those used for traditional printing, so as to enable the curable phase change ink to set up into a given shape and height.
摘要:
A method for fabricating a three-dimensional object including depositing a first amount of 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 upon a print region surface; successively depositing additional amounts of the ultraviolet curable phase change ink composition to create a three-dimensional object; and curing the ultraviolet curable phase change ink composition.
摘要:
A compound of the formula wherein R1 and R1′ are the same, and wherein R1 and R1′ are each aromatic groups; and wherein R2 and R2′ and R3 each, independently of the others, are alkylene groups, arylene groups, arylalkylene groups, or alkylarylene groups; or wherein, in embodiments, R1 and R1′ can be the same or different, and wherein R1 and R1′ each, independently of the other is an alkyl group having a least one ethylenic unsaturation, an arylalkyl group having at least one ethylenic unsaturation, an alkylaryl group having at least one ethylenic unsaturation, or an aromatic group, provided that at least one of R1 and R1′ is an aromatic group; and provided that neither of R1 or R1′ is a photoinitiator group.
摘要:
Disclosed is a phase change ink comprising a colorant, an initiator, and a phase change ink carrier, said carrier comprising at least one radically curable monomer compound and a compound of the formula wherein R1 and R1′ are the same, and wherein R1 and R1′ are each an aromatic group; and wherein R2 and R2′ and R3 each, independently of the others, are alkylene groups, arylene groups, arylalkylene groups, or alkylarylene groups; or wherein, in embodiments, R1 and R1′ can be the same or different, and wherein R1 and R1′ each, independently of the other is an alkyl group having a least one ethylenic unsaturation, an arylalkyl group having at least one ethylenic unsaturation, an alkylaryl group having at least one ethylenic unsaturation, or an aromatic group, provided that at least one of R1 and R1′ is an aromatic group; and provided that neither of R1 or R1′ is a photoinitiator group. Also disclosed herein is a method of printing with the phase change ink.
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:
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 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 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:
Disclosed is a phase change ink comprising a colorant, an initiator, and a phase change ink carrier, said carrier comprising at least one radically curable monomer compound and a compound of the formula wherein R1 and R1′ are the same, and wherein R1 and R1′ are each an aromatic group; and wherein R2 and R2′ and R3 each, independently of the others, are alkylene groups, arylene groups, arylalkylene groups, or alkylarylene groups; or wherein, in embodiments, R1 and R1′ can be the same or different, and wherein R1 and R1′ each, independently of the other is an alkyl group having a least one ethylenic unsaturation, an arylalkyl group having at least one ethylenic unsaturation, an alkylaryl group having at least one ethylenic unsaturation, or an aromatic group, provided that at least one of R1 and R1′ is an aromatic group; and provided that neither of R1 or R1′ is a photoinitiator group. Also disclosed herein is a method of printing with the phase change ink.