| 摘要 |
Disclosed is a phase change ink comprising an ink carrier which comprises a crystalline component and an amorphous rosin ester. In specific embodiments, the crystalline component can be a trans-cinnamic diester, a diester of tartaric acid, or a diurethane. In specific embodiments, the ink exhibits a peak melting point of no more than about 150° C., an onset crystallization temperature of no less than about 60° C., a melt viscosity within the temperature range of from about 100° C. to about 130° C. of from about 5 cps to about 22 cps, a peak solidification viscosity at about 50° C. of no less than about 1×106 cps, and a hardness at about 25° C. of at least about 70. |
| 主权项 |
1. A phase change ink comprising an ink carrier which comprises:
(a) a crystalline component which is a trans-cinnamic diester, a diester of tartaric acid, a diurethane, or a mixture thereof, wherein said diurethane is of the formulawherein R5 and R6 each, independently of the other, is benzyl, 2-phenylethyl, 2-phenoxyethyl, C6H5(CH2)4—, cyclohexyl, 2-methylcyclohexyl, 3-methylcyclohexyl, 4-methylcyclohexyl, 3-phenylpropanyl, cyclohexylmethyl, 2-methylcyclohexylmethyl, 3-methylcyclohexylmethyl, 4-methylcyclohexylmethyl or 4-ethylcyclohexyl, and
(b) an amorphous rosin ester. |
