84results about "Inks" patented technology

The present invention relates to both a system and method for product and document authentication. The system used herein comprises one or more inks, at least one of which is either invisible to the naked eye or is fluorescent or luminescent, an optical (2, 3, 8) scanning component capable of detecting the signals emitted by all of said inks, and an information technology component for analyzing said signals. Given the large number of combinations of dyes, sizes and shapes of the markings made with said dyes, the ability to change the type, size and shape for the marking (5) for a given product, and the ability to keep track of the dyes and markings used for a given product, the system allows a nearly foolproof system for product authentication. The method involves the above system, or other combinations of inks, for authenticating a given product.

Described are pigmented inks comprising a liquid medium, a pigment, and a polyurethane dispersant, the pigment being stabilized by the polyurethane dispersant, and the ink being suitable for use in an ink jet printer.

A method for authenticating a product where the product is composed of a plurality of components is described. The method for authenticating the product comprises providing a liquid compound, e.g. paint, that comprises at least one invisible market, e.g. nucleic acid, in which the compound is associated with a first entity. The method then proceeds to apply the compound to the surface of the product at the juncture of at least two components. The method also comprises associating the application of the compound to the at least two components with the first entity.

The present invention is an ink set for ink-jet recording using at least two kinds of inks comprising a first ink containing at least a pigment, a water-soluble solvent and water, and a second ink containing at least a pigment, a coagulant, a water-soluble solvent and water and having the absolute value of ζ-potential of not less than 10 mV. The present invention also provides an ink-jet recording method using the ink set for ink-jet recording, wherein an image is formed by applying the first ink and second ink on a recording medium so as to contact to each other. The present invention further provides an ink-jet recording apparatus comprising a recording head for ejecting at least the first ink and second ink.

According embodiments of the present disclosure, a water-based ink set for ink-jet recording is provided. The ink set may contain a black ink, a cyan ink, a magenta ink and a yellow ink. Each ink may contain a polyoxyethylene alkyl ether sulfonate.

The present invention belongs to the field of ink, and in particular relates to highly wear-resistant PU ink for silicone rubber surface. The raw materials comprise hydroxyl-terminated polyurethane resin, curing agent, and mixed solvent. Moreover, the raw materials still comprise wear-resistant additives. The wear-resistant additives can be one of or the mixture of a plurality of polytetrafluoroethylene, polypropylene, polyethylene, polyethylene oxide, zinc oxide, alumina oxide, iron oxide, zirconium oxide, magnesium oxide, calcium carbonate, talc, silica aluminum, and magnesium silicate. With the proposal of the present invention, the suitable polyhydroxylated PU resin, curing agents and filler are used to prepare PU ink for silicone rubber of convenient construction, reduction of priming payer of middle coating, good adhesion and excellent wear resistance.

An inkjet recording ink set, which contains at least: a black pigment ink; and a color pigment ink, wherein the black pigment ink contains a black pigment treated with an anionic surfactant, and a black pigment coated with a resinous polymer, and water, and the black pigment ink is a pigment dispersion liquid where the black pigment treated with the anionic surfactant and the black pigment coated with the resinous polymer are dispersed in the water, and wherein the color pigment ink contains a color pigment, a nonionic surfactant, and water, and the color pigment ink is a pigment dispersion liquid where the color pigment is dispersed in the water with assistance of the nonionic surfactant.

The present invention relates to an infrared reflecting black pigment which comprises a composite oxide containing Fe, Co and at least one metal selected from the group consisting of Al, Mg, Ca, Sr, Ba, Ti, Zn, Sn, Zr, Si and Cu; has an average plate surface diameter of 0.02 to 5.0 μm, a blackness (L* value) of not more than 30, an average reflectance of not more than 10% in a visible light wavelength range of 250 to 780 nm and an average reflectance of not less than 35% in an infrared wavelength range of 780 to 2500 nm. There is provided an infrared reflecting black pigment which is capable of producing a heat-shielding paint containing no harmful elements and exhibiting an excellent infrared reflecting property.

The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in aqueous and non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions. The dispersant is a compound of the formula

wherein CY is selected from the group consisting of aliphatic monocyclic compounds having one double bond and aliphatic polycyclic compounds with or without one double bond, or with or without bridge carbons; (n+x+y+z)>1; and R=—H, —SO₃M, —CO₂M, —PO₃M, —OCR′ wherein M=H, or Na, K, Li, Ca, Mg, NH4, NH(R₁)₂, NH₂R₁, N(R₁)₃ where R₁ is selected from the group consisting of C₁-C₆ alkyl and C₁-C₆ hydroxyalkyl; and R′=C₂-C₂₂ alkyl or alkenyl.

The present invention provides a temperature sensitive paint for low-temperature use which shows durability at low temperatures, has a high light emission intensity, and makes it possible to perform precise temperature measurements of surface temperature fields by applying the paint to the surface of an object and measuring the light emission even in cases where the measurement distance is long in, for example, a large cryogenic wind tunnel or the like. The temperature sensitive paint for low-temperature use contains a ruthenium complex having a high light emission intensity as a temperature sensitive luminophore, a urethane type polymer as a binder, and an alcohol organic solvent as a solvent. Use of an alcohol organic solvent makes it possible to dissolve a temperature sensitive luminophore at a high solubility and to increase the light emission intensity by raising the temperature sensitive luminophore concentration in the coating film, so that more precise temperature measurements can be performed. By using the urethane type polymer having the durability at low-temperature, it is possible to obtain durability where no cracks occur at low temperatures even when the film thickness is increased. Therefore, adjustment of the light emission intensity and surface treatment such as surface polishing and the like can be performed by using this temperature sensitive paint for low-temperature use.

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):

The invention relates to an ink resin composite used for plastic gravure printing and a preparation method thereof. The ink prepared from the ink resin composite is suitable for the non-polar substrates biaxially oriented polypropylene laminated polyethylene (BOPP) and polyethylene (PE) and the polar substrate polyethylene terephthalate (PET). The preparation method of the ink resin composite is as follows: the in-situ polymerization blending method is adopted to introduce alcohol-soluble polyurethane resin in a reaction system of the ink resin composite. The ink resin composite comprises the following components by weight percent: 30-50% of acetic ether, 8-25.5% of acrylate polymer, 8-25% of vinyl acetate polymer, 2.2-4.5% of styrene polymer, 1.5-2.5% of active functional polymer, 0.5-40% of alcohol-soluble polyurethane resin, 0.1-0.6% of initiator and 6-10% of alcohol diluent. The ink resin composite of the invention has simple preparation method, is green and environmentally friendly and has wide application prospect in the gravure printing ink.

A water-based ink set for ink-jet recording is provided which is capable of: reducing graininess in a low-density printed part in a cyan direction without reducing the color reproduction range in the cyan direction in a high-density printed part; extending the color reproduction range in a blue direction and/or a green direction; improving the vividness of the blue color and/or the green color; and improving gas resistance in a printed part in the cyan direction. The water-based ink set for ink-jet recording includes a cyan pigment ink employing pigment as a coloring agent and a blue dye ink employing dye as a coloring agent and/or a green dye ink employing dye as a coloring agent. The cyan pigment ink is a light cyan pigment ink having a lightness (L*) of about 60 or more in the L*a*b* colorimetric system.

An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which a kogation problem in a thermal inkjet printer can be decreased.

The invention provides a thermal vanishing ink, which consists of the following components by weight: 10-80 parts of water; 0-30 parts of a cosolvent; 1-75 parts of a colorant; 0.01-1 part of a bactericide; 0.1-5 parts of a thickening agent; 0.1-2 parts of a pH regulator; 0.01-1 part of a corrosion inhibitor; 0.1-3 parts of an inorganic oxide; and 1-30 parts of a film-forming agent. The thermal vanishing ink provided by the invention can be applied to all materials of different colors, and can show silver gray on white and other light color materials and show silver white on black and other dark materials. The color can vanish through any heating mode, and the vanished ink trace is transparent or colorless, and has irreversibility. Being environment-friendly and non-toxic, the ink has uniform and stable solution system, is difficult to delaminate and is favorable of storage, thus being widely applicable in leather products, clothing products, stationery commodities and other fields to meet the demands of showing colors clearly on all ground color materials with different dark and light colors and irreversible vanishing after heating.

The present invention relates to formulations comprising aluminum nitride nanoparticles, at least one dispersant and at least one aqueous solvent, to the method for obtaining said formulations as well as to their use for obtaining a leveling barrier layer.

The invention discloses edible printing ink which comprises the following raw materials in parts by weight: 20-45 parts of a natural edible colorant, 10-30 parts of water, 80-90 parts of plant oil, 1-10 parts of sucrose, 5-20 parts of shellac, 0.1-1.5 parts of an edible additive and 1-5 parts of nano maize starch, wherein the natural edible colorant is one or a mixture of several of orange yellow, black bean red, black currant red and rosa laevigate michx brown, and the plant oil is one or a mixture of several of peanut oil, linseed oil and rapeseed oil. Due to the adoption of the natural colorant, the plant oil, the additive and the nano material, the edible printing ink has excellent performances of high lustrousness, high tinting strength and the like, and completely meets the safety and health requirements of national edible products.

The invention provides a temperature change ink for printing a drink label, consisting of the following components in percentage by weight: 35-55% of water-soluble acrylic resin, 15-25% of temperature sensitive powder, 1-3% of dispersing agent, 10-20% of organic solvent and 15-20% of water. According to the new formula of the temperature sensitive ink for printing the drink label, provided by the invention, when the label is at normal temperature, the ink is colorless; after the drink is stored in a refrigerator or a cold room at a storage temperature below a certain temperature, the ink on the label comes in different colors for an anticounterfeiting function; and when the temperature raises again, the ink on the label become colorless again. The ink is suitable for printing labels of beer, juice, and the like, and is easily identified by customers; meanwhile, the ink is a water-soluble material which does not produce any pollution to products.

An electrically conductive composition and a fabrication method thereof are provided. The electrically conductive structure includes a major conductive material and an electrically conductive filler of an energy delivery character dispersed around the major conductive material. The method includes mixing a major conductive material with an electrically conductive filler of an energy delivery character to form a mixture, coating the mixture on a substrate, applying a second energy source to the mixture while simultaneously applying a first energy source for sintering the major conductive material to form an electrically conductive composition with a resistivity smaller than 10×10⁻³Ω·cm.

The invention discloses a method for printing double smooth surfaces at one time and a matting agent for printing ink. The matting agent is prepared from the following raw materials in part by weight: 90 to 95 parts of polyethylene paraffin scattered in a fluffy state, 2 to 4 parts of hydrogenated castor oil and 0.4 to 1 part of polyacrylamide. The preparation method comprises the following step of uniformly mixing the three substances in a high speed mixer. The method for printing double smooth surfaces at one time comprises the following steps: uniformly mixing gravure ink and the matting agent in a ratio of 1:(2-4); printing matted patterns on parts of a base material requiring a matting effect through gravure equipment by using the mixed matting gravure ink; and printing bright patterns on parts of the base material requiring a bright effect by using gravure ink without the matting agent, or reversing the sequence to achieve the same effect.

An ink composition contains resin particles, a pigment, glycol ether, and water, wherein the resin particles satisfy the condition defined by Relational Expression (1)

1.0≤(ϕ2/ϕ1)≤12.5  (1)

(where ϕ1 represents the volume average particle size of the resin particles in a solution containing 20 mass % of the resin particles and 80 mass % of water, and ϕ2 represents the volume average particle size of the resin particles in a solution containing 90 mass % of the resin particles and 10 mass % of water).

(Problem) Providing an ink composition, particularly an ink composition for use in inkjet recording, which can form an image with good adhesion and high quality and which is excellent in storage stability, and an inkjet recording method and a printed matter using it, as well as a lithographic plate which can record an image with no blot, high sensitivity and high adhesion to a recording medium and a method for making such plate. (Solving Means) The foregoing problem may be achieved by an ink composition comprising: (a) A cationically polymerizable compound; (b) a compound generating an acid by irradiation of radiant ray; and (c) plasticizer, particularly at least one ester compound selected from the group consisting of phosphate ester, dicarboxylic acid ester and tricarboxylic acid ester.

The invention provides a preparation method of organic tin-free vinyl chloride-isobutyl vinyl ether copolymer resin (chlorine ether resin for short). The preparation method comprises the steps of adding the materials including deionized water, an emulsifying agent, a buffer agent and the like into polymerizing kettle, heating to a specified temperature, adding an emulsified mixture of the materials including vinyl chloride, isobutyl vinyl ether, deionized water, an emulsifying agent, a buffer agent, stabilizers and the like and materials including an initiator and the like in a batch or continuous manner to generate polymerization, and adding the stabilizers in the later period of the reaction, so as to obtain the organic tin-free chlorine ether resin, wherein the stabilizers are substances containing non-organic tin stabilizers with epoxy groups. The prepared organic tin-free chlorine ether resin has good thermal stability and can be applied to the fields of ink, coatings and the like of tools, foods and medical products. The preparation method has the advantages that the chlorine ether resin does not contain organic tin and has good thermal stability.

The invention belongs to the technical field of printing ink manufacturing and discloses waterborne printing ink for food package printing and a preparation method of the printing ink. The printing ink is prepared from, by weight, 20-40% of pigment, 13-30% of acrylic acid resin, 12-30% of acrylic acid emulsion, 0.5-1.5% of flatting agent, 0.1-0.2% of defoaming agent, 3-10% of ethyl alcohol and 15-50% of water. The preparation method includes the steps that water, acrylic acid resin, acrylic acid emulsion, pigment and ethyl alcohol are added into a dispersion machine to be pre-dispersed, then the mixture is heated to 25-60% to be evenly stirred and dispersed, and a mixed solution is obtained; the mixed solution is added into a ball mill to be ball-milled till the fineness reaches 10-25 micrometer, then the flatting agent and the defoaming agent are added, and the waterborne printing ink for food package printing is obtained. The waterborne printing ink is safe, environmentally friendly, simple in preparation method, controllable in printing ink printing parameter and wide in application prospect.