Abstract:
Microfluidic devices are prepared by providing a substrate material having a solid adhesive thin sheet, printing solid ink on the substrate using a conventional printer, selectively etching the substrate using a wax masking layer to obtain a desired pattern, removing the masking layer from the substrate, aligning and bonding together the pattern of the substrate to a pattern of a second substrate to form a layer of substrates, and curing the layer of substrates to result in a three-dimensional microfluidic device.
Abstract:
A microfluidic device includes a first substrate, and a phase change ink deposited on a surface of the first substrate. The phase change ink includes a non-polar polymeric material and an optional colorant, wherein the phase change ink is solid at room temperature but is liquid at a jetting temperature of from about 60 to about 150° C., and a water contact angle on the deposited phase change ink is from 90° to about 175°.
Abstract:
A microfluidic device includes a first substrate, and a phase change ink deposited on a surface of the first substrate. The phase change ink includes an ink vehicle including a polymeric material having one or more acidic groups, and an optional colorant, wherein the phase change ink is solid at room temperature but is liquid at a jetting temperature of from about 60 to about 150° C., and an acidic group mass percentage, measured as a total mass of acid groups to an entire weight of the ink, is from about 1% to about 35%.
Abstract:
Methods form a multi-color electrophoretic display. The methods include providing microcapsules, wherein the microcapsules have an electrostatic charge, and wherein the microcapsules comprise, a shell that is transparent and a display medium within the shell, wherein the display medium is comprised of either (a) at least two sets of differently colored particles in a substantially clear fluid, or (b) at least one set of colored particles in a differently colored fluid. The methods include transferring the microcapsules to a substrate, wherein the electrostatic charge of the microcapsules attracts the microcapsules to the substrate, wherein a display layer of microcapsules is formed on the substrate. The methods include positioning a conductive substrate adjacent to the substrate, wherein the substrate is located between the display layer and the conductive substrate. In use, the conductive substrate applies an electric field to the display layer, and wherein the sets of particles within each microcapsule in the display layer are moveable within the microcapsule by the electric field.
Abstract:
An electrophoretic ink includes fluid having either (a) at least two sets of differently colored particles with the fluid been a substantially clear fluid, or (b) at least one set of colored particles with the fluid been a differently colored fluid than the colored particles, wherein at least one set of colored particles includes at least one electrophoretic particle having a core-shell structure. The at least one electrophoretic particle includes a shell and a core located within the shell, wherein the core includes a colorant and a fluorescent compound. An electric field may be applied adjacently to the fluid of the ink, and the at least one set of colored particles having the core-shell structure is movable within the fluid of the ink by the electric field.
Abstract:
Microfluidic devices are prepared by providing a substrate material having a solid adhesive thin sheet, printing solid ink on the substrate using a conventional printer, selectively etching the substrate using a wax masking layer to obtain a desired pattern, removing the masking layer from the substrate, aligning and bonding together the pattern of the substrate to a pattern of a second substrate to form a layer of substrates, and curing the layer of substrates to result in a three-dimensional microfluidic device.
Abstract:
Exemplary embodiments provide an aluminum image drum and method of its formation such that the aluminum image drum can have a surface texture to provide desirable surface oil consumption and high print quality for solid ink jet marking systems.
Abstract:
Methods form multi-color electrophoretic displays. The method includes providing a solution containing microcapsules, wherein the microcapsules comprise a shell that is transparent and a display medium within the shell, wherein the display medium comprised of either (a) at least two sets of differently colored particles in a substantially clear fluid, or (b) at least one set of colored particles in a differently colored fluid. The method includes dispensing the solution onto a substrate, wherein a display layer of microcapsules is formed on the substrate. The method includes positioning a conductive substrate adjacent to the substrate, wherein the substrate is located between the display layer and the conductive substrate, wherein the conductive substrate applies an electric field to at least one microcapsule of the display layer, wherein the sets of particles of each microcapsule in the display layer are movable within the microcapsule by the electric field to be displayed.
Abstract:
A microfluidic device includes a first substrate, and a phase change ink deposited on a surface of the first substrate. The phase change ink includes an ink vehicle including a polymeric material having one or more hydroxyl groups, and an optional colorant, wherein the phase change ink is solid at room temperature but is liquid at a jetting temperature of from about 60 to about 150° C., and a hydroxyl group mass percentage, measured as a total mass of hydroxyl groups to an entire weight of the ink, is from about 1% to about 35%.
Abstract:
An aperture plate coated with a composition including a first monomer, a second monomer, a fluorinated compound, such as fluorosilane, fluoroalkyl amide, fluorinated ether and the like, and a photoinitiator, where the first and second monomer are different. A process of coating an aperture plate includes applying the compositions to a base film, such as a polyimide film, and curing the compositions on the base film.