摘要:
This disclosure is generally directed to curable phase change inks, such as radiation-curable phase change inks, and their use in forming images, such as through inkjet printing. More specifically, this disclosure is directed to radiation-curable phase change inks, such as ultraviolet-light-curable phase change inks, that an ink vehicle and at least one crystalline polyester resin.
摘要:
Positive and negative stamp masters derived from UV curable ink molds comprising ultraviolet (UV) curable inks and methods for digitally preparing those stamp masters. In particular, the digitally prepared molds provide a method of printing micropatterns of fine variable features or images in a more efficient manner than the methods currently available.
摘要:
Disclosed is a process for preparing a compound of the formula wherein R1 and R1′, R2 and R2′, and R3 are as defined herein, said process comprising (I) reacting a diacid of the formula HOOC—R2—COOH with a diamine of the formula H2N—R3—NH2 to form an acid-terminated oligoamide intermediate of the formula HOOC—R2—CONH—R3—HNCO—R2′—COOH; and (II) reacting the acid-terminated oligoamide intermediate with a monoalcohol of the formula R1—OH in the presence of a tin or organic titanate catalyst, in the absence of a coupling agent, and in the absence of a solvent to form the product. Also disclosed is a composition prepared by the process.
摘要:
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 curable solid inks of the present embodiments retain the advantages of handling, safety, and print quality usually associated with conventional curable solid phase change inks but have replaced the petroleum-based materials generally used in the conventional inks with renewable “green” materials to provide a robust and environmentally-friendly curable solid 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:
A curable phase change ink composition that includes an ink vehicle including at least one isosorbide monomer having at least one functional group. Also described is an ink printing device that includes a curable phase change ink composition for printing onto a substrate, an ink jetting device, and a curing device providing radiation that cures the curable phase change ink composition. The curable phase change ink composition of the ink printing device includes an ink vehicle including at least one isosorbide monomer having at least one functional group.
摘要:
A process for preparing a radiation curable solid ink composition wherein a solid pigment and dispersant are added to a molten solid monomer including (a) heating a monomer that is solid at room temperature to a temperature above the monomer melting point to provide a molten solid monomer; (b) adding a curable component, a non-curable component, and a photoinitiator to the molten solid monomer to provide a molten ink base; (c) adding a dispersant to the molten ink base; and (d) a adding a pigment to the molten ink base with stirring to provide a curable pigmented ink composition. Included is a process for preparing a radiation curable solid ink composition wherein a liquid pigment concentrate or a solid pigment concentrate is added to an ink base.
摘要:
A radiation-curable gel ink with reduced syneresis. The inks include a curable monomer, an organic gellant, a gel-forming wax, an optional photoinitiator, and an optional colorant. Also disclosed are methods of making such inks, and methods of forming images with such inks.
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:
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.