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:
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:
Methods of controlling gloss of an image are disclosed. The methods may include forming an image over a substrate by applying an ink composition and optionally an overcoat composition at least partially over the substrate. The ink composition or overcoat composition may include at least one gellant, at least one curable monomer, optionally at least one curable wax and optionally at least one photoinitiator. The ink composition or overcoat composition may be curable upon exposure to radiation. The methods may further include providing a micro-roughness to one or more portions of the ink composition or overcoat composition by non-uniformly curing the ink composition or overcoat composition, and flood curing the ink composition or overcoat composition to complete a cure. The methods may thereby provide a controlled gloss level to the image.
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:
A system and method for preparing conductive features on a substrate including printing a radiation curable phase change gel masking material in a pattern of fillable channels on a surface of a substrate; curing the radiation curable phase change gel masking material; depositing a conductive material in the fillable channels; annealing the conductive material; and, optionally, removing the radiation curable phase change gel masking material. In embodiments, ultra-violet curable phase change gel is used to digitally prepare a pattern of dams for containing a thick layer of conductive material which is annealed to form an electronic structure.
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 are radiation curable phase change ink and overcoat compositions that contain a gellant, a cationically curable monomer, a cationic photoinitiator, and, optionally, a radically curable monomer and, further optionally, a free-radical photoinitiator. A phase change ink composition further contains a colorant. A phase change overcoat composition is free of colorant. The gellant may be an amide gellant. The cationically curable monomer may be selected from epoxides, vinyl ethers and oxetanes. The cationic photoinitiator may be selected from triarylsulphonium salts, diaryliodonium salts, aryldiazonium salts, triarylselenonium salts, dialkylphenacylsulphonium salts, triarylsulphoxonium salts, aryloxydiarylsulphonoxonium salts, and dialkylphenacylsulphoxonium salts, in which the salts are formed with ions selected from BF4−, PF6−, AsF6−, SbF6−, and CF3SO3−.
摘要:
An ink jet printing device including an ink jet print head and a print region surface toward which ink is jetted from the ink jet print head, wherein a height distance between the ink jet print head and the print region surface is adjustable; wherein the ink jet print head jets an ultra-violet 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; wherein a print deposited upon the print region surface is Braille, raised print, or a combination of regular print and one or both of Braille and raised print.
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.