摘要:
The phase change ink a viscosity of from about 4 mPa-s to about 50 mPa-s at a first temperature and has a viscosity of from 104 mPa-s to about 109 mPa-s at a second lower temperature. The second temperature may be below the first temperature by at least 10° C. but by no more than 50° C. The first temperature may be from about 60° C. to about 110° C. and the second temperature may be from about 20° C. to about 70 ° C. A curve of log10 viscosity of the phase change ink plotted against temperature in degrees Celsius may have a slope having an absolute value less than 0.02 at the first temperature and have a slope having an absolute value greater than 0.08 for at least a region second temperatures.
摘要:
A radiation curable phase change ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one gellant comprised of a curable polyamide-epoxy acrylate component and a polyamide component, and at least one colorant. The use of the gellant enables the ink to form a gel state having a viscosity of at least 103 mPa·s at very low temperatures of about 25° C. to about 100° C. The ink may thus be jetted at very low jetting temperatures of, for example, about 40° C. to about 110° C. The ink may be used to form an image by heating the ink to a first temperature at which the ink may be jetted, jetting onto a member or substrate maintained at a second temperature at which the ink forms a gel state, and exposing the ink to radiation energy to polymerize curable components of the ink.
摘要:
An ink jet ink includes an ink vehicle, wherein the ink vehicle includes at least one wax monomer functionalized to include in the chain at least one reactive group curable upon exposure to radiation. The reactive group is preferably curable via cationic or free radical polymerization. In a preferred embodiment, the ink vehicle includes a wax monomer having a structure: wherein C represents a cationically curable group and R represents a radically curable group. The inks may be used to form an image by jetting the ink onto a transfuse member surface, increasing the viscosity of the ink upon the transfuse member surface, subsequently transferring the ink from the transfuse member surface to an image receiving substrate, and exposing the ink to radiation following the transfer to the image receiving substrate to effect reaction of the at least one reactive group.
摘要:
Curable trans-1,2-cyclohexane bis(urea-urethane) compounds of the formulae wherein R1 and R′1 each, independently of the other, are alkylene, arylene, arylalkylene, or alkylarylene groups, R2 and R′2 each, independently of the other, are alkyl, aryl, arylalkyl, or alkylaryl groups, R3 and R′3 each, independently of the other, are hydrogen atoms or alkyl groups, R4 and R′4 each, independently of the other, are hydrogen atoms, fluorine atoms, alkyl groups, or phenyl groups, n is an integer of 0, 1, 2, 3, or 4, and R5 is an alkyl, aryl, arylalkyl, or alkylaryl group, or a substituent other than an alkyl, aryl, arylalkyl, or alkylaryl group, provided that at least one of R1, R′1, R2, R′2, R3, R′3, R4, R′4, or one or more of R5 is an alkyl, alkylene, arylalkyl, arylalkylene, alkylaryl, or alkylarylene group containing an ethylenic unsaturation rendering the compound curable upon exposure to heat and/or actinic radiation.
摘要:
Phase change inks comprising a phase change ink carrier and one or more curable trans-1,2-cyclohexane bis[urea-urethane] compounds of the formulae wherein R1 and R′1 are alkylene, arylene, arylalkylene, or alkylarylene groups, R2 and R′2 are alkyl, aryl, arylalkyl, or alkylaryl groups, R3 and R′3 are hydrogen atoms or alkyl groups, R4 and R′4 are hydrogen atoms, fluorine atoms, alkyl groups, or phenyl groups, n is an integer of 0, 1, 2, 3, or 4, and R5 is an alkyl, aryl, arylalkyl, or alkylaryl group, or a substituent other than an alkyl, aryl, arylalkyl, or alkylaryl group, provided that at least one of R1, R′1, R2, R′2, R3, R′3, R4, R′4, or one or more of R5 is an alkyl, alkylene, arylalkyl, arylalkylene, alkylaryl, or alkylarylene group containing an ethylenic unsaturation rendering the compound curable upon exposure to heat and/or actinic radiation.
摘要翻译:相变油墨,其包含相变油墨载体和一种或多种下式的可固化的反式-1,2-环己烷双[尿素 - 氨基甲酸酯]化合物,其中R 1和R 2 < R 2是亚烷基,亚芳基,芳基亚烷基或烷基亚芳基,R 2和R“2是烷基,芳基,芳基烷基或烷基芳基, R 3和R 3'是氢原子或烷基,R 4和R“4是氢原子,氟原子,烷基 或苯基,n是0,1,2,3或4的整数,并且R 5是烷基,芳基,芳基烷基或烷基芳基,或除烷基以外的取代基 ,芳基,芳基烷基或烷基芳基,条件是R 1,R'1,R 2,R 2,R',SUB中的至少一个 R 2,R 3,R 4,R 4,或者R 3,R 3, R 5中的一个或多个是含有烯属不饱和键的烷基,亚烷基,芳基烷基,芳基亚烷基,烷基芳基或烷基亚芳基,使得c 在暴露于热和/或光化辐射下可固化。
摘要:
A radiation curable phase change ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one curable epoxy-polyamide gellant, and at least one colorant. The use of the gellant enables the ink to form a gel state having a viscosity of at least 103 mPa·s at very low temperatures of about 25° C. to about 100° C. The ink may thus be jetted, for example onto an intermediate tansfer member surface or directly to an image receiving substrate, at very low jetting temperatures of, for example, about 40° C. to about 110° C. In a preferred method of forming an image with the ink, the ink is heated to a first temperature at which the ink may be jetted, jetted onto an image receiving or intermediate transfer member surface maintained at a second temperature at which the ink forms a gel state, if appropriate subsequently transferred from the intermediate transfer member surface to an image receiving substrate, and exposed to radiation energy to cure the curable components of the ink.
摘要:
Disclosed is a phase change ink comprising a colorant, an initiator, and a phase change ink carrier, said carrier comprising (A) a urethane which is the reaction product of a mixture comprising (1) an isocyanate; and (2) an alcohol selected from the group consisting of 1,4 butanediol vinyl ether, 2-allyloxy ethanol, 1,4-cyclohexanedimethanol vinyl ether, ethylene glycol vinyl ether, di(ethylene glycol) vinyl ether, and mixtures thereof; (B) a compound which is the reaction product of a mixture comprising (1) an isocyanate; and (2) a component comprising (a) an amine having at least one ethylenic unsaturation; (b) an acid having at least one ethylenic unsaturation; (c) a mixture of an amine having at least one ethylenic unsaturation and an alcohol having at least one ethylenic unsaturation; (d) a mixture of an acid having at least one ethylenic unsaturation and an alcohol having at least one ethylenic unsaturation; or (e) mixtures thereof; or (C) a mixture of (A) and (B); said ink being curable upon exposure to ultraviolet radiation.
摘要:
An ink that may be used in ink jet devices is a photochromic ink comprising an ink vehicle that includes at least one radiation curable component, at least one photochromic material and at least one photoinitiator. The ink is cured via exposure to radiation that cures the at least one radiation curable component of the ink. A radiation curable ink capable of exhibiting photochromatic color changes, which may be used to indicate a document's authenticity, is thus achieved.
摘要:
Disclosed is a compound of the formula wherein R1 and R1′ each, independently of the other, is an alkyl group having at least one ethylenic unsaturation, an arylalkyl group having at least one ethylenic unsaturation, or an alkylaryl group having at least one ethylene unsaturation, R2, R2′, and R3 each, independently of the others, are alkylene groups, arylene groups, arylalkylene groups, or alkylarylene groups, and n is an integer representing the number of repeat amide units and is at least 1.