摘要:
A printed mask derived from a composition comprised of at least one compound including at least one alkaline-hydrolyzable group, and at least one compound including at least one ethylene oxide group. The printed mask is removable using an alkaline solution in about 30 seconds or less.
摘要:
The invention encompasses a compound having the formula: wherein at least one Q1, Q2, Q3 and Q4 is a halogen atom and any of Q1, Q2, Q3 and Q4 which is not a halogen atom is a hydrogen atom; and wherein R comprises at least two carbon atoms. The invention further encompasses inclusion of such compound into phase change ink carrier compositions, as well as printing methods utilizing such compound.
摘要:
A phase change ink composition comprising a phase change ink carrier system in combination with a compatible colorant system, the colorant system comprising a combination of (1) a black colorant having an absorbance in the 475 nanometer region which is less than 80 percent of the absorbance at the 580 nanometer region and (2) a sufficient amount of at least one other colorant having an absorbance in the 475 nanometer region whereby the colorant has a ratio of absorbance in the 475 nanometer region to the 580 nanometer region from about 0.92:1.0 to about 1.01:1.0.
摘要:
A phase change ink composition is disclosed wherein the ink composition utilizes colorant in combination with a selected phase change ink carrier composition containing at least one hydroxy-functional fatty amide compound.
摘要:
The present invention preferably employs a phase change ink composition that includes a combination of different dye types such as an anthraquinone dye and a xanthene dye, which is most preferably a rhodamine dye. While each dye type is insufficiently soluble with respect to favored carrier compositions to preserve color saturation in reduced ink quantity prints, the dye type combination permits increased dye loading and maintains print quality. In a preferred embodiment of the invention, a favored carrier composition is adjusted to promote the colored form of a preferred rhodamine dye (C.I. Solvent Red 49) and mixed with a preferred anthraquinone dye (C.I. Solvent Red 172) whose concentration is kept below a critical level to prevent post printed blooming. The resulting preferred phase change ink compositions provide a magenta phase change ink with enhanced light fastness and color saturation, as well as good compatibility with preferred existing subtractive primary color phase change inks.
摘要:
Disclosed is a colorant compound of the formula wherein Y is a hydrogen atom or a bromine atom, n is an integer of 0, 1, 2, 3, or 4, R1 is an alkylene group, an arylene group, an arylalkylene group, or an alkylarylene group, provided that no oxygen atom creates a linkage, X is —O— or —NR3— wherein R3 is a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and R2 is a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group.
摘要:
A process for preparing a colorant of the formula which comprises preparing a first reaction mixture by admixing leucoquinizarin and, optionally, quinizarin, an aminobenzene substituted with an alcohol group of the formula —R1—OH, boric acid, and an optional solvent, and heating the first reaction mixture to prepare an alcohol-substituted colorant of the formula followed by converting the colorant thus prepared to either an ester-substituted colorant by reaction with an esterification compound which is either an anhydride of the formula or an acid of the formula R2COOH in the presence of an optional esterification catalyst or a urethane-substituted colorant by reaction with an isocyanate compound of the formula R4—N═C═O and brominating the colorant thus prepared, wherein either conversion to ester or urethane can be performed before bromination or bromination can be performed before conversion to ester or urethane.
摘要:
The invention encompasses a compound having the formula: wherein at least one Q1, Q2, Q3 and Q4 is a halogen atom and any of Q1, Q2, Q3 and Q4 which is not a halogen atom is a hydrogen atom; and wherein R comprises at least two carbon atoms. The invention further encompasses inclusion of such compound into phase change ink carrier compositions, as well as printing methods utilizing such compound.