摘要:
A document includes paper having an average surface roughness of at least about 0.5 microns and including one or more optical brighteners, and includes at least one image thereon wherein the at least one image includes clear binder and light absorbing material that absorbs light only at wavelengths below 350 nm. The image is substantially not detectable to a naked human eye through differential gloss or exposure to light having wavelengths of 365 nm or more, but may be revealed to the naked human eye by exposing the document to light having a wavelength at which the light absorbing material absorbs light.
摘要:
A document includes a paper substrate having an average surface roughness of at least about 0.5 microns, wherein the paper substrate includes encoded information printed thereon, and wherein the encoded information is printed with an ink comprised of light absorbing material that absorbs light only at wavelengths below 350 nm and an optional clear binder in a solvent. The encoded information is substantially not detectable to a naked human eye through differential gloss or exposure to light having wavelengths of 365 nm or more, and is only revealed upon exposing the document to light having a wavelength at which the light absorbing material absorbs light, which is less than 350 nm.
摘要:
A method of displaying an image in an electrophoretic display device includes charging each of the sets of differently colored particles to have a different charge through application of an electric field to the display fluid or the device, and then applying an electric field to selected ones of the multiplicity of reservoirs to effect movement of one or more of the differently colored sets of particles in the display fluid therein to display a desired color derived from among the sets of differently colored particles. The colors are shown by way of the particle set or sets moved to be closet to the viewing side conductive substrate of the device. The device may include at least one display layer, including a multiplicity of individual reservoirs containing a display fluid, between conductive substrates, at least one of which is transparent and thus may be a viewing side substrate, wherein the display fluid includes at least two sets of particles in a liquid medium, the at least two sets of particles exhibiting a different color.
摘要:
A process for printing conductive metal markings directly on a substrate under an ambient condition, including the steps of synthesizing or providing conductive the ink on a substrate to form conductive metallic nanoparticles into an ink; and printing the ink on a substrate to form conductive metallic markings on the substrate. The printed conductive metallic markings may form wires that behave as resonant RFID antenna applications.
摘要:
A method of printing chipless RFID tags with unique features, includes printing a RFID antenna pattern precursor using a first printing process, wherein the RFID antenna pattern precursor includes a plurality of disconnected wire segments; and printing a conductive ink using a second print process to interconnect at least two of the plurality of disconnected wire segments, to produce a final RFID antenna with a unique antenna geometry.
摘要:
An electrophoretic display device includes a display layer comprised of a multiplicity of individual reservoirs containing a display medium over a conductive substrate, wherein the display medium comprises one or more set of colored particles dispersed in a dielectric fluid, the display medium having an electrical conductivity of about 1031 11 to about 10−15 S/m. The device further includes either or both a color filter layer over the display layer, wherein the color filter layer comprises each of a red tinted transparent portion, a blue tinted transparent portion and a green tinted transparent portion, and a dark colored light absorptive backplane under the display layer.
摘要翻译:电泳显示装置包括显示层,该显示层由在导电基底上包含显示介质的多个单独储存器组成,其中显示介质包括分散在介电流体中的一组或多组有色颗粒,显示介质具有导电性 约10 11 11至约10 -15 S / m。 该设备还包括显示层上的滤色器层中的一个或两个,其中滤色层包括红色着色透明部分,蓝色着色透明部分和绿色着色透明部分中的每一个以及深色光吸收背板 显示层。
摘要:
A toner including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×104 J/m3. The magnetic nanoparticle may be a ferromagnetic nanoparticle, such as FePt. The toner includes a magnetic material that minimizes the size of the particle, resulting in excellent magnetic pigment dispersion and dispersion stability, particularly in emulsion/aggregation toner processes. The smaller sized magnetic particles of the toner also maintains excellent magnetic properties, thereby reducing the amount of magnetic particle loading required in the toner.
摘要翻译:包括稳定的磁性单晶纳米颗粒的调色剂,其中磁性纳米颗粒的磁各向异性的值大于或等于2×104J / m 3。 磁性纳米颗粒可以是铁磁性纳米颗粒,例如FePt。 调色剂包括使颗粒尺寸最小化的磁性材料,导致优异的磁性颜料分散和分散稳定性,特别是在乳液/聚集调色剂方法中。 调色剂的较小尺寸的磁性颗粒还保持优异的磁性,从而减少调色剂中所需的磁性颗粒负载量。
摘要:
A process for printing a metal wire pattern on a substrate, including: printing a first salt solution including a metal ion that will undergo a reduction half-reaction; printing a second salt solution containing an oxidizing agent that will undergo an oxidation half-reaction in contact with the first salt solution, resulting in the reduction of the metal ions of the first salt solution; and allowing the first and second salt solutions to react by a galvanic reaction, causing reduced metal ions of the first salt solution to precipitate as a solid, on the substrate.
摘要:
A system integrating a digital press with an ink jet device to form a security document, which includes a xerographic portion and an invisible ink portion, produces documents in a continuous inline process.
摘要:
Metal nanoparticles with a stabilizer complex of a carboxylic acid-amine on a surface thereof is formed by reducing a metal carboxylate in the presence of an organoamine and a reducing agent compound. The metal carboxylate may include a carboxyl group having at least four carbon atoms, and the amine may include an organo group having from 1 to about 20 carbon atoms.