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    • 4. 发明申请
    • Emulsion Ink
    • 乳液墨水
    • US20110113977A1
    • 2011-05-19
    • US12946261
    • 2010-11-15
    • John Hamilton
    • John Hamilton
    • B41M1/12C09D11/10
    • C09D11/0235
    • The present invention is directed to a water-in-oil (w/o) emulsion ink comprising an oil phase and an aqueous phase. The oil phase comprises a liquid resin having a viscosity in the range of from about 1000 to about 10000 centipoise (cP) in an amount of about 0.1 to about 10 weight % as based upon the total mass of the ink. The aqueous phase comprises pigment. When the pigment comprises carbon black, all of the carbon black pigment contained within the ink has a pH of at least about 5. The invention is also directed to a process for the preparation of a w/o emulsion ink, which comprises adding an aqueous phase to an oil phase. The oil phase comprises a resin which, during manufacture of the ink, is added to the oil phase as a liquid having a viscosity in the range of from about 1000 to about 10000 cP, and the ink comprises pigment which, during manufacture of the ink, is added to the aqueous phase. When the pigment comprises carbon black, all of the carbon black pigment has a pH of at least about 5. The inks find particular use in stencil printing, and in particular in digital duplication.
    • 本发明涉及包含油相和水相的油包水(w / o)乳液油墨。 油相包含基于油墨总质量的约0.1至约10重量%的粘度在约1000至约10000厘泊(cP)范围内的液体树脂。 水相包含颜料。 当颜料包含炭黑时,墨水中所含的所有炭黑颜料的pH值至少约为5.本发明还涉及一种制备喷墨乳液的方法,其包括将水相 到油相。 油相包括在制造油墨期间作为粘度在约1000至约10000cP范围内的液体加入到油相中的树脂,并且油墨包括在油墨的制造期间的颜料 ,加入到水相中。 当颜料包含炭黑时,所有炭黑颜料的pH至少约为5.该油墨特别用于模版印刷,特别是在数字复制中。