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US 8,182,712 B1Granted
Methods and apparatus for dyeing material
AssigneeEmpire Technology Development LLC
InventorsMaki Maekawa, Takahisa Kusuura
Life of this patent
Estimating the term…
Abstract
Techniques for dyeing material are disclosed, including providing a magnetorheological fluid containing a coloring agent onto a contacting surface, applying a magnetic field to the magnetorheological fluid to increase viscosity of the magnetorheological fluid, and contacting the material with the magnetorheological fluid on the contacting surface to dye the material with the coloring agent.
Claims25
A method for dyeing material, the method comprising:
- providing a material to be dyed;
- providing a magnetorheological fluid onto a contacting surface, wherein the magnetorheological fluid comprises at least one coloring agent and magnetic particles;
- applying a magnetic field to the magnetorheological fluid to increase viscosity of the magnetorheological fluid;
- and
- contacting the material with the magnetorheological fluid on the contacting surface to produce a dyed material, wherein contacting the material with the magnetorheological fluid comprises positioning the material and the magnetorheological fluid between a pair of opposing rollers, wherein at least one of the rollers comprises the contacting surface.
2 more elements
An apparatus for dyeing material, comprising at least one providing device, at least one contacting surface and at least one opposing surface;
- wherein the providing device is configured to provide a magnetorheological fluid onto the contacting surface, wherein the magnetorheological fluid comprises at least one coloring agent and magnetic particles,
- wherein the contacting surface is configured to apply a magnetic field to the magnetorheological fluid, wherein the magnetic field is selected to increase the viscosity of the magnetorheological fluid,
- wherein the opposing surface is configured to keep the material in contact with the magnetorheological fluid on the contacting surface to dye the material with the coloring agent,
- wherein the contacting surface and the opposing surface are configured to position the material and the magnetorheological fluid between the contacting surface and the opposing surface, and
- wherein the apparatus further comprises a pair of rollers, wherein one of the rollers comprises the contacting surface on the side thereof and the other roller comprises the opposing surface on the side thereof.
2 more elements
Dependencies are inferred from the claim text.