Abstract: The present technology discloses smart labels to monitor physical parameters, and for traceability and authentication of objects, documents or people. This active and multifunctional label is based on spectrally and spatially multiplexed Quick Response (QR) codes (A). Spectrally selectivity is achieved using luminescent materials and spatially multiplexing is achieved using different patterns (B) combining both to design improved QR codes able to store information at different layers of accessibility. This brings advantages over the actual scenario of QR codes wherein the amount of storage information increases up to three times, adding the capability to sense physical parameters and allow to control the provided information, creating public and restricted access. To access and read the content of each layer, different illumination is used (C) to (E) and is processed using a device or via dedicated applications.

Abstract: The present invention relates generally to using upconverting inks for producing highly-resolved patterns for inter alia, security applications. More specifically, the present invention relates to the use of sols (inks) and printing processes that produce well-defined printed features consisting of polymers impregnated with luminescent upconversion nanocrystals. The patterns printed using such inks and processes may exhibit defined shapes, characters of text, and various other types of images.

Abstract: A fluorescent oxygen sensing ink includes at least one organic solvent, at least one polymer binder disposed in the organic solvent, and an oxygen-sensitive fluorescent dye disposed in the organic solvent. The oxygen-sensitive fluorescent dye and the at least one polymer can interact to form a moisture-resistant film. The fluorescent oxygen sensing ink can be incorporated into an oxygen sensing wound dressing.

Abstract: An input device, such as a stylus, can include a piezoelectric device for providing haptic feedback and/or detecting user input. The piezoelectric device can be coupled to an inner surface of a housing of the stylus. The piezoelectric device can provide haptic feedback with a force to the housing when an electric voltage is applied to the piezoelectric device. The haptic feedback can provide information to the user relating operation of the stylus with an external device. The piezoelectric device can also produce an electric voltage when an input force is applied to an outer surface of the housing and transmitted to the piezoelectric device. The electric voltage can be used to detect tactile input from a user.

Abstract: An ink jet printing ink includes a colorant selected from acid dyes and reactive dyes, an organic solvent, and water. The organic solvent has a solubility parameter value greater than or equal to 11 and less than or equal to 13.5. The organic solvent also has a viscosity, at 20° C., greater than or equal to 10 mPa·s and less than or equal to 180 mPa·s.

Abstract: An ink composition including: a microcapsule having: a shell having a three-dimensional cross-linked structure including at least one of a urethane bond or a urea bond; and a core encapsulated by the shell; a colorant selected from the group consisting of a colorant having an ionic group and a colorant at least a part of a surface of which being covered with a dispersant having an ionic group; and water, a content ratio of an acidic group-containing compound having at least an acidic group, an acid dissociation constant of 5 or less, and a molecular weight of 2000 or less, relative to a total mass of the ink composition, is 0.5 mass % or less; an ink set, a method for producing an ink composition, and an image recording method.

Abstract: An input device, such as a stylus, can include a piezoelectric device for providing haptic feedback and/or detecting user input. The piezoelectric device can be coupled to an inner surface of a housing of the stylus. The piezoelectric device can provide haptic feedback with a force to the housing when an electric voltage is applied to the piezoelectric device. The haptic feedback can provide information to the user relating operation of the stylus with an external device. The piezoelectric device can also produce an electric voltage when an input force is applied to an outer surface of the housing and transmitted to the piezoelectric device. The electric voltage can be used to detect tactile input from a user.

Abstract: Disclosed herein are methods and systems for controlled ejection of desired material onto surfaces including in single cells using nanopipettes, as well as ejection onto and into cells. Some embodiments are directed to a method and system comprising nanopipettes combined with an xyz controller for depositing a user defined pattern on an arbitrary substrate for the purpose of controlled cell adhesion and growth. Alternate embodiments are directed to a method and system comprising nanopipettes combined with an xyz controller and electronic control of a voltage differential in a bore of the nanopipette electroosmotically injecting material into a cell in a high-throughput manner and with minimal damage to the cell. Yet other embodiments are directed to method and system comprising functionalized nanopipettes combined with scanning ion conductance microscopy for studying molecular interactions and detection of biomolecules inside a single living cell.

Abstract: The present invention relates generally to using upconverting inks for producing highly-resolved patterns for, inter alia, security applications. More specifically, the present invention relates to the use of sols (inks) and printing processes that produce well-defined printed features consisting of polymers impregnated with luminescent upconversion nanocrystals. The patterns printed using such inks and processes may exhibit defined shapes, characters of text, and various other types of images.

Abstract: An aqueous penetrating ink includes a pigment and a water-soluble dye. The ink also includes a humectant in which the water-soluble dye is to be at least partially dissolved. The humectant is present in the ink between 20 percent by weight and 70 percent by weight. This amount of humectant results in a slow evaporation rate. The ink also includes water, making it suitable for use with some inkjet printers. Because the pigment is not dissolved in the humectant or the water, it forms an image on the surface of a printed side of a substrate. The slow evaporation rate of the humectant allows it to carry the ink through a thickness of a substrate so that it is visible on a non-printed side of the substrate.

Abstract: What is disclosed is a method for encoding liquid ink with a biomarker which can be traced back to a specific inkjet printer. In one embodiment, an aqueous solution containing a biomarker is combined with a volume of liquid ink. The biomarker comprises a nucleic acid. An ordering of nucleobases forming that nucleic acid has a code sequence. In one embodiment hereof, the nucleic acid is constructed using a code sequence which contains, at least in part, the device specific serial number of the inkjet printer. The encoded liquid ink is added to an inkjet printer and the code sequence encoded in that ink is associated with that particular inkjet printer. The inkjet printer is then used to deposit the encoded ink onto a media substrate. In other embodiments, a fluorescent marker is also added with the volume of liquid ink such that the ink fluoresces under an ultraviolet light.

Abstract: A method of illuminating an ornament having a light emitting source, a battery power source and a control circuit energizing the light source at desired intensities over desired durations of time. Light from the right source travels through an ornament wall. The method repeats the steps of increasing the light intensity from a low to a high intensity during a rise time period; decreasing the light intensity to a low intensity during a fall time period which is not less than the rise time period; and, maintaining the low intensity of light during a remaining time period which is not less than the combined rise and fall time periods. The low intensity of light is less than one third the high intensity. The light intensity decreased and maintained briefly at zero intensity during an off time period between the remaining and rise time periods in an imperceptible manner.

Abstract: The invention relates to a layer or article comprising cholesteric liquid crystal polymer particles, which are optionally dispersed in a continuous phase, to cholesteric polymer particles for use in such a layer or article, to methods of preparing such a layer or article, and to the use of such a layer or article as optical element, in windows or electrooptical devices like liquid crystal displays (LCDs).

Abstract: The present invention is the security element for sensitive documents characterized in that it includes at least one graphene layer arranged on a polymer layer where the graphene layer is heterogeneous and forms a pattern characterized by different levels of absorption of electromagnetic radiation, especially infrared radiation, visible light radiation or ultraviolet light passing through the pattern at its various points.

Abstract: Provided is an ink composition including the following components (A), (B), and (C). The component (A) is an anthracene derivative represented by the following formula (A1). The component (B) is an aromatic amine derivative represented by the following formula (B1). The component (C) is a solvent represented by the following formula (C1) and having a boiling point of 110° C. or higher and a solubility of 1 wt % or less in water. where one or more of Ar1 to Ar4 are a heterocyclic group represented by a formula (B1?).

Abstract: A thermal ink jet ink composition includes one or more volatile organic solvents, wherein the one or more volatile organic solvents are selected from C1-C4 alcohols, C3-C6 ketones, C3-C6 esters, C4-C8 ethers, and mixtures thereof; one or more binder resins; and one or more dyes. The ink composition is suitable for use in a thermal ink jet printer and the ink composition has a slow rate of kogation such that it is capable of being printed at least 10 million drops per nozzle from the thermal ink jet printer before drop weight of the ink composition is reduced by more than 10%.

Abstract: A drop detection method comprises ejecting an ink drop that includes a fluorescent agent, illuminating the ink drop in flight with excitation light to excite the fluorescent agent, detecting fluorescence emitted by the drop in flight, having a longer wavelength than a wavelength of the excitation light, and, prior to such detecting, filtering out light having a shorter wavelength than the fluorescence wavelength; and a printer with drop detection assembly for performing the method.

Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; an optional synergist; an optional dispersant; and a white colorant having a volume average particle size of from about 25 nanometers to less than 200 nanometers.

Abstract: Disclosed herein is a quantum dot ink composition for inkjet printing. The quantum dot ink composition comprises a highly viscous polymeric additive. Quantum dots can be ejected by inkjet printing and the concentration of the quantum dots in the quantum dot ink composition can be freely controlled. In addition, the loading amount of the quantum dots can be reduced. Based on these advantages, the quantum dot ink composition can be used as a material for light-emitting layers of a variety of electronic devices. Also disclosed herein is an electronic device fabricated using the quantum dot ink composition.

Abstract: A system for printing and emissive image on a substrate that includes red, green, and blue additive-color emissive inks configured to be printed to a substrate using an ink printer device intended for use with subtractive-color ink. An image to be printed can be converted to color negative form prior to printing using the subtractive-color ink printer. The system may include a subtractive-color ink printer intended for use with subtractive-color ink cartridges. The system may also include a computer device programmed to convert an image to a color negative form.

Abstract: Luminescent lanthanide complex and inks containing the complex as well as its method of production and article including the complex, wherein the complex includes the formula: wherein M is chosen from the alkali cations Li+, Na+, K+, Rb+ and Cs+ and mixtures thereof and is present to neutralize charge of the complex; wherein Ln is chosen from the trivalent rare-earth cations of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb and mixtures thereof; wherein R is a C5 to C6 heteroaryl: wherein Y is an optionally substituted C3-C8 heterocycloalkyl moiety linked to R by an N atom; wherein n is an integer of 3 or 5; and wherein x is an integer of 0 or 1.

Abstract: Aqueous thermal inkjet ink composition for the printing of security documents comprising at least one luminescent water-soluble lanthanide complex.

Abstract: Organic additives are used to improve the lifetimes of organic electronic devices, such as electroluminescent devices fabricated from polymer luminescent ink. These additives include moisture getters, thermally-activated organic/inorganic hybrids, radical scavengers, antioxidants, UV stabilizers, and photoretarders. For water and oxygen scavengers, activation at elevated temperatures or through another activation method is preferred. This allows for the handling of the device materials containing the scavenger under a lower temperature condition in air where higher levels of ambiently-supplied water or oxygen may also be present. The invention also improves operational lifetimes as getters, scavengers and similar acting additives serve to reduce detrimental reactive species that transport into the device, are generated during operation, or become reactive during operation due to the presence of excited states or external stimulation by electrical, optical or other means.

Abstract: A security marker material comprising emissive particles selected from at least two groups with different size distributions and the size distributions satisfy the formula: [(x?z)2/(Sx2+Sz2)]1/2>1 wherein x and z are the volume-weighted mean equivalent-spherical diameters of the two particle distributions and Sx and Sz are the standard deviations of the same two distributions.

Abstract: Phosphor and fluorescent compositions and methods of producing them are provided.

Abstract: A system, method and apparatus is disclosed for coloring a substantially wicking substrate comprising applying to a substantially wicking substrate an ink comprising a first dye and a second dye to define a region of reference; applying a first solvent to the substantially wicking substrate to move the first dye and the second dye within the body of the substantially wicking substrate; moving the two dyes in a defined direction to carry the two dyes outside of the defined region to color an area of the wicking substrate; coloring at least a portion of the substantially wicking substrate by allowing the first solvent to move through a portion of the first dye for a first distance from the defined point of origin of the ink and the second dye a second distance from the defined point of origin of the ink wherein the first distance is sufficiently different from the second distance to recognize a separation between the first dye and the second dye thereby coloring the substantially wicking substrate outside of th

Abstract: A fluorescent solid ink, and a method for making such ink, including an ink vehicle and a fluorescent particle. The fluorescent particle includes a fluorescent pigment, such as a trans-dicarboxylic-indenofluorenone, and at least one stabilizing wax chemically attached to the fluorescent pigment. The stabilizing wax includes an amine group at its terminal end and the fluorescent pigment includes at least one carboxylic acid group, where the amine group reacts with the carboxylic acid group to form an amide bond.

Abstract: A method for labeling a UV-fluorescing substrate includes positioning a UV-fluorescing substrate adjacent to an inkjet material dispenser, and selectively jetting an edible, invisible, non-UV fluorescing ink onto the UV-fluorescing substrate with the inkjet material dispenser.

Abstract: A system, method and apparatus is disclosed for coloring a substantially wicking substrate comprising applying to a substantially wicking substrate an ink comprising a first dye and a second dye applying a first solvent to the substantially wicking substrate to move the first dye and or the second dye in a defined direction coloring at least a portion of the substantially wicking substrate by allowing the first solvent to move through a portion of the first dye for a first distance from the point of origin of the ink and the second dye a second distance from the point of origin of the ink wherein the first distance is sufficiently different from the second distance to visualize a separation between the first dye and the second dye shaping a portion of the colored wicking substrate into a form and affixing the form onto a support for display.

Abstract: Described are new custom postage printing stocks, coating compositions, processes for preparing and utilizing these and resulting postage products. Disclosed ink formulations comprise: invisible fluorescent dye and/or pigment (preferably red-fluorescent dye), which is fluorescent in the range of 580 to 640 nm when illuminated with light at 254 nm; water-soluble binder; substrate penetrant, fluorescence stabilizer; substrate anticurl agent and water. The inks, when coated on substrates and dried, can improve the quality and color of images printed as compared to images printed without the aid of the invention.

Abstract: The invention relates to a composition for coding having at least one pair of mutually associated luminescent substances having first and second luminescent substances which emit in a joint emission range located outside the visible spectral range. The emission spectra of the first and second luminescent substances overlap in at least a subrange of the stated emission range such that the emission spectrum of the first luminescent substance is complemented by the emission spectrum of the second luminescent substance.

Abstract: A particulate luminescent composition is disclosed that, when excited by electromagnetic radiation at a first frequency, emits electromagnetic radiation at a second frequency equal to or within 1500 cm?1 of the first frequency. The luminescent composition comprises substantially spherical particles having a weight average particle size of less than about 10 ?m and a particle size distribution such that at least about 90 weight percent of the particles are not larger than twice the average particle size.

Abstract: Disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum which are high in intensity and high in persistence.

Abstract: Disclosed is a radiation curable ink containing a fluorescent material that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process printing the disclosed radiation curable ink.

Abstract: A mailing ink, an ink tank for mailing, an ink jet recording method for mailing and an ink jet recording apparatus for mailing that can reconcile preferable tint and visibility as indicia with readability by a 2-D bar code reader. The ink is a mailing ink used in ink jet recording. In the mailing ink, the ink tank, the ink jet recording method, and the ink jet recording apparatus, the ink provides an ‘a*’ of from ?10 to 15 and a ‘b*’ of from ?50 to ?15 according to the CIE L*a*b* color system in a printed portion obtained by applying the ink to a recording medium so as to give an application amount of ink of 4.5 mg per square inch, and provides an integrated value of reflection spectrum of 90 or lower in a wavelength region of from 380 nm to 730 nm in the printed portion.

Abstract: Aqueous thermal inkjet ink composition for the printing of security documents comprising at least one luminescent water-soluble lanthanide complex.

Abstract: An article is marked with image indicia for authentication, information, or decoration by providing a plurality of inks having a plurality of fluorescence colors when exposed to excitation energy, separating colors of the image indicia into a plurality of image levels in accordance with the fluorescence colors of the inks, and printing each image level in mutual registration on the article using the corresponding ink. The image printed with each ink may be substantially invisible under illumination within the visible spectrum. The invisibly printed images have multiple authentication features, including the use of covert UV-fluorescent materials, IR-fluorophores, microparticles, and other chemical taggants. Ink compositions, methods for making the inks, and methods and apparatus for using the inks are also disclosed.

Abstract: The invention relates to a composition for a coding forming at least part of a coding system having a luminescent basic substance and at least one luminescent additive, the composition of the coding being formed by the presence or absence of a luminescent additive and/or the type of additives and/or the number of additives.

Abstract: A fluorescent ink composition comprising functionalized fluorescent nanocrystals, an aqueous-based ink carrier comprising water or a water-based solution, and a binder. Also provided are methods of providing an image or a security mark on a substrate for subsequent identification by applying a fluorescent ink composition onto the substrate.

Abstract: The present disclosure provides Benzoxazinone compounds represented by the formula: wherein each R1, R2, R3, and R4 is independently selected from hydrogen, alkyl of 1-12 carbon atoms, substituted alkyl, aryl of 6-12 carbon atoms, substituted aryl, halo, and alkoxy; and R5 is selected from alkyl of 1-12 carbon atoms, substituted alkyl, aryl of 6-12 carbon atoms, substituted aryl, halo, and alkoxy; wherein each of the substituted alkyl and the substituted aryl groups have a substituent selected from alkyl, aryl, halo, and alkoxy. The present disclosure provides a mark having a benzoxazinone compound, and a method for applying the mark onto an article. Also provided is a process for preparing benzoxazinone compounds.

Abstract: The present invention relates to an red luminescent ink composition exhibiting adequate and stable emission intensity under irradiation of ultraviolet rays and high solubility for a resin and an organic solvent. The ink composition of the present invention contains a luminous compound represented by the following formula (1): wherein R is a perfluoroalkyl group having 2 to 20 carbons, L1 and L2 are the same or different and are sulfoxide having a substituted or unsubstituted aryl group or a substituted or unsubstituted an alkyl group.

Abstract: A marking liquid which contains a polymer dispersion with particles which are colored with marking agent, optionally further dyes and marking agents, one or more salts of a polyvalent, in particular bi- or trivalent cation, water and optionally moisture retaining agents and further usual additives, wherein the polymer forming the polymer particles is selected from the group of polyesters, polyester amides, polymers and copolymers based on acrylate or methacrylate with a proportion of free carboxylic acid groups of less than 10% by weight, melamine-formaldehyde-sulfonamide resins and mixtures thereof.

Abstract: The invention provides dyes, biosensors, and methods for using the dyes and biosensors to detect selected target molecules. The biosensors have a binding domain and a dye, or a dye which is attached directly to the target of interest. Binding domains contemplated by the invention include biomolecules or fragments of biomolecules that interact with target molecules of interest and can be specific to a given conformational state or covalent modification of the molecule (e.g. phosphorylation). In one embodiment, the binding domain of a biosensor is a single chain variable fragment (scFv) with a dye of the invention linked to a CDR3 region. The invention also provides environmentally sensitive dyes useful for detecting changes in the binding, conformational change, or posttranslational modification of the selected target.

Abstract: A fluorescent image-printed article including a substrate, and an image formed on the substrate, wherein the image is formed from a fluorescent ink containing a binder, and a fluorescent substance which is dispersed in the binder, is capable of emitting fluorescence when irradiated with ultraviolet rays, and is substantially transparent to visible light, the fluorescent substance being formed of a rare earth complex containing, as a ligand, a compound represented by the following formula (1):

Abstract: A method for laser marking a substrate which method comprises exposing a composition comprising a tetrabenzodiazadiketoperylene pigment to laser radiation to produce a fluorescent marking readily apparent under UV light is disclosed. Many of the tetrabenzodiazadiketoperylenes herein are novel. This method can yield fluorescent markings which are not readily apparent under ambient light. A method for producing non-fluorescent laser marked substrates containing tetrabenzodiazadiketoperylene dyes is also disclosed.

Abstract: Photoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as display devices and lighting elements, incorporating the phosphor powders.

Abstract: The present disclosure provides Benzoxazinone compounds represented by the formula: wherein each R1, R2, R3, and R4 is independently selected from hydrogen, alkyl of 1-12 carbon atoms, substituted alkyl, aryl of 6-12 carbon atoms, substituted aryl, halo, and alkoxy; and R5 is selected from alkyl of 1-12 carbon atoms, substituted alkyl, aryl of 6-12 carbon atoms, substituted aryl, halo, and alkoxy; wherein each of the substituted alkyl and the substituted aryl groups have a substituent selected from alkyl, aryl, halo, and alkoxy. The present disclosure provides a mark having a benzoxazinone compound, and a method for applying the mark onto an article. Also provided is a process for preparing benzoxazinone compounds.

Abstract: Described are new custom postage printing stocks, coating compositions, processes for preparing and utilizing these and resulting postage products. Disclosed ink formulations comprise: invisible fluorescent dye and/or pigment (preferably red-fluorescent dye), which is fluorescent in the range of 580 to 640 nm when illuminated with light at 254 nm; water-soluble binder; substrate penetrant, fluorescence stabilizer; substrate anticurl agent and water. The inks, when coated on substrates and dried, can improve the quality and color of images printed as compared to images printed without the aid of the invention.

Abstract: The invention is to provide an aqueous ink, a recorded image and a recording method capable of improving an image fastness and a color-developing property of a recorded image, and is featured in that components of the aqueous ink are so prepared as to realize, at least on a surface portion of a recording medium, a fixed state of an ink droplet in which a contour portion of a second coloring material is formed around a central portion in which a first coloring material is fixed.

Abstract: The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.