Method and system for magnetic actuated milling for pigment dispersions
First Claim
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1. A method for preparing a pigment dispersion, comprising:
- a) adding a pigment, a surfactant, and a solvent into an impellerless vessel;
b) adding magnetic particles into the impellerless vessel; and
c) applying a varying magnetic field in a circular motion on a micro or nano scale to move the magnetic particles to mill down pigment particle size, in the impellerless vessel.
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Abstract
A method for preparing a pigment dispersion includes a) adding a pigment, a surfactant, and a solvent into a vessel, b) adding magnetic particles into the vessel; and c) applying a varying magnetic field to move the magnetic particles to mill down pigment particle size. A system for preparing a pigment dispersion includes a) a vessel for holding a solution comprising pigment particles, a surfactant and a solvent, b) magnetic particles added to the solution, c) a source for applying a varying magnetic field to move the magnetic particles to mill down pigment particle size, and d) a collector for collecting the magnetic particles for re-using at a later time.
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Citations
19 Claims
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1. A method for preparing a pigment dispersion, comprising:
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a) adding a pigment, a surfactant, and a solvent into an impellerless vessel; b) adding magnetic particles into the impellerless vessel; and c) applying a varying magnetic field in a circular motion on a micro or nano scale to move the magnetic particles to mill down pigment particle size, in the impellerless vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for preparing a pigment dispersion, comprising:
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a) a vessel for holding a solution comprising pigment particles, a surfactant and a solvent; b) magnetic particles added to the solution; c) a source for applying a varying magnetic field in a circular motion on a micro or nano scale to move the magnetic particles to mill down pigment particle size; and d) a collector for collecting the magnetic particles for re-using at a later time; wherein the system lacks an impeller thereby allowing the vessel to take on any geometric design. - View Dependent Claims (17, 18, 19)
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Specification