Patent application number | Description | Published |
20080218540 | DUAL PRINTER FOR REGULAR AND RAISED PRINT - Disclosed is an ink jet printing device including an ink jet print head and a print region surface toward which ink is jetted from the ink jet print head, wherein a height distance between the ink jet print head and the print region surface is adjustable. The ink jet printing device is thus a dual printing device capable of printing both regular height and raised height images such as Braille. | 09-11-2008 |
20080264288 | Phase change ink compositions - Disclosed is a phase change ink composition comprising a colorant and a phase change ink vehicle comprising a compound of the formula | 10-30-2008 |
20080311489 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into a substrate, where the imaging layer is formed of an imaging composition that includes a solvent or a polymeric binder, and a photochromic material selected from substituted fulgides and substituted dithienylethenes, dissolved or dispersed in the solvent or polymeric binder, and where the imaging composition exhibits a reversible homogeneous-heterogeneous transition between a colorless state, an intermediate colorless or colored erasable state, and a final colored stable state, the photochromic material converting from the colorless state to the colored stable state upon irradiation with light of a first wavelength and converting from the colored stable state to the colorless state upon exposure to heat and light. | 12-18-2008 |
20080311490 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder, and where the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light. | 12-18-2008 |
20080311491 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate, and an imaging layer coated on or impregnated into the substrate, wherein the imaging layer includes a photochromic ploymer, optionally dispersed in a polymeric binder or a phase change binder, the photochromic polymer including a polymer having at least one photochromic unit grafted therein, wherein the imaging layer exhibits a reversible transition between a colorless state and a colored state in response to heat and light and wherein the imaging layer does not exhibit a transition from the colored state to colorless state when heated in the absence of light. | 12-18-2008 |
20080311492 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photobase generator and a coupling agent. In the image forming medium, irradiation of the imaging layer cause the photobase generator to generate a base that reacts with the coupling agent to produce an image. | 12-18-2008 |
20080311493 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or inpregnated into said substrate, where the imaging layer includes a photochromic material and an optional intermolecular hydrogen bond stabilizer, dispersed in a polymeric binder, where the photochromic material reversibly forms intramolecular hydrogen bonds or reversibly forms intermolecular hydrogen bonds with the intermolecular hydrogen bond stabilizer, and thereby exhibits a reversible transition between a colorless state and a colored state in response to heat and light. | 12-18-2008 |
20080311494 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a paper substrate and an imaging layer coated on or impregnated into a paper substrate, where the imaging layer is formed of an imaging composition that includes an alkoxy substituted diarylethene photochromic material dissolved or dispersed in a solvent or polymeric binder, and where the imaging composition exhibits a reversible transition between a colorless and a colored state. | 12-18-2008 |
20080311495 | PHOTOCHROMIC MATERIAL, INKLESS REIMAGEABLE PRINTING PAPER, AND METHODS - An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes as a photochromic material a spiropyran compound having a conjugated pathway, dispersed in a polymeric binder, wherein the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and light. | 12-18-2008 |
20080311516 | INKLESS PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photobase generator and coupling agent. In the image forming medium, irradiation of the imaging layer causes the photobase generator to generate base that reacts with the coupling agent to produce an image. | 12-18-2008 |
20080311517 | INKLESS PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photoacid generator and an acid-base indicator. In the image forming medium, irradiation of the imaging layer causes the photoacid generator to generate an acid that reacts with the acid-base indicator to produce an image. | 12-18-2008 |
20080311518 | INKLESS PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photobase generator and an acid-base indicator. In the image forming medium, irradiation of the imaging layer causes the photobase generator to generate a base that reacts with the acid-base indicator to produce an image. | 12-18-2008 |
20080311519 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state. | 12-18-2008 |
20080311521 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state. | 12-18-2008 |
20090258156 | PHOTO-ERASABLE INK FOR FULL COLOR PRINTING - An ink compatibility including a dye and surface functionalized photocatalytically active semiconductor nanoparticles is provided. This ink composition enables the reuse of a print substrate, because the surface functionalized photocatalytically active semiconductor nanoparticles bleach the dye under an activating radiation. | 10-15-2009 |