Improved near infrared absorbers
SUBSTANCE: invention relates to a dyeing composition, including a marking component and reduced indium-tin oxide (r-ITO), wherein r-ITO in powder form has a median particle size ranging from 10 nm to 10 mcm, weight ratio In: Sn less than 12:1 and exhibits a lightness (L*) according to 1976 CIE (L*, a*, b*) space, of not more than 50, for use in marking purposes. Described also is a substrate, coated with dyeing composition, packaging material for liquid food products, method of marking coated substrate in packaging material for liquid food products and use of reduced indium-tin oxide for laser marking purposes.
EFFECT: technical result is providing dyeing compositions with good marking properties.
19 cl, 2 tbl, 4 dwg, 2 ex
FIELD: physics, optics.
SUBSTANCE: mix comprises first set of pigment scales oriented by magnetic field. Said scales can vary their colour from first to second colour at first change of the angle of vision. Second set of pigment scales not oriented by magnetic field that can vary their colour from said first to third colour at second change of the angle of vision other than the first one. Note here that said first, second and third colours are different colours. Scales of said first and second sets are applied on substrate in binder that makes the mix of scales. Note also that said scales have said first colour if seen on substrate at direct angle. Note also that scales oriented by magnetic field are oriented, in fact, in similar way differing from orientation of scales not oriented by magnetic field so that substrate inclination relative to first axis causes the change in seen colour from said first to said second colour. Substrate inclination relative to second axis perpendicular to first axis causes the change of colour from first colour to said third colour.
EFFECT: coat colouration changing.
8 cl, 10 dwg
SUBSTANCE: invention relates to novel active dyes, methods of their obtaining and their application in dyeing or printing textile fibrous materials. An active dye of formula in which B represents a radical of formula -CH2-CH(R12)- or -(R12)CH-CH2-, in which R12 represents C1-C4alkyl, R5 represents hydrogen or sulpho, Z1 represents a fibre-reactionable group of formula -SO2-Y (3a) or -NH-CO-(CH2)l-SO2-Y (3b), R7 represents amino, R8 represents C2-C4alkanoylamino or ureido, X1 and X2 represent, each independently on the other, fluorine or chlorine, k equals a number 2 or 3, l equals a number 2 or 3 and Y represents vinyl or β-sulphatoethyl.
EFFECT: invention makes it possible to obtain the improved active dyes with high reaction ability, chemical affinity, as well as with good dyeability with a high degree of fixation.
8 cl, 2 tbl, 8 ex
SUBSTANCE: invention relates to compositions for obtaining electroconductive coatings on substrates surface. Described is a printing composition for obtaining the electroconductive coatings based on silver particles dispersed in water. The composition contains: a) from 5 to 40 wt.p. of metal silver particles with an effective diameter from 10 to 150 nm, with the silver particles having bimodal distribution of particles by sizes; from 50 to 99.5 wt.p. of water and, if necessary, to 30 wt.p. of a solvent; c) from 0.01 to 15 wt.p. of a dispersing agent; d) from 0 to 5 wt.p of additives; e) from 0 to 5 wt.p. of electroconductive, if necessary, water-soluble, polymers; f) from o.5 to 5 wt.p. of a thickening agent; g) from 30 to 70 wt.p. of silver particles or silver-coated copper particles with an effective diameter from 500 nm to 10 mcm. The composition has a viscosity, at least, 1 Pa·s. Also described is the application of the composition for obtaining the electroconductive coatings, method of obtaining current-conductive paths and a polymer substrate with the electroconductive coating from the claimed composition.
EFFECT: invention provides an effective elctroconductivity of electroconductive structures on thermally stable surfaces with the application of offset printing and screen printing.
15 cl, 2 ex
SUBSTANCE: invention can be used for inkjet printing. A porphyrazine colorant or its salt is represented by formula (1), where rings A-D each independently represents a benzene ring or a 6-membered nitrogen-containing heteroaromatic ring. E represents alkylene, X represents sulfo-substituted group aniline or the like, which can additionally have a substituent, R1 represents C1-C6 alkyl group, b equals to 0.00 or more and less than 3.90, as the average value, c equals to 0.10 or more and less than 4, as the average value, and the sum of b and c equals to 1.00 or more and less than 4.00, as the average value. The composition of colorant for inkjet printing, which contains the porphyrazine colorant or its salt.
EFFECT: invention makes it possible to obtain the composition of a colorant, which has good shade, possesses excellent properties of various types of resistance, in particular, ozone resistance, provides a possibility of high density of printing, possesses properties which almost do not produce a bronze tint effect.
21 cl, 5 tbl, 17 ex
SUBSTANCE: invention relates to an ink set containing chromophoric metals for digital printing on ceramic materials. The ink set comprises liquid colouring compositions (A), (B), (C) and one from (D) and (E). The (A) comprises at least a compound of cobalt. The (B) comprises at least a compound of iron. The (C) comprises at least a compound of a metal selected from chromium, nickel and their mixtures. The (D) comprises at least a compound of cobalt and at least a compound of iron. The (E) comprises one or more compounds of zirconium. The said metal compounds decompose at a temperature of from 500 to 1300°C. When interacting with the ceramic material the metal compounds of compositions (A)-(D) form colured oxides or colured compounds. The compounds of zirconium from the composition (E) with the ceramic material form white oxides or white compounds. Also the method of decorating ceramic materials by digital printing using the specified set of ink and the decorated ceramic products produced using this method are described.
EFFECT: invention provides ceramic materials decorated with digital printing of wide range of colours with the effect of natural stone.
11 cl, 45 tbl, 5 ex
SUBSTANCE: invention relates to conductive pastes for forming metal contacts on the surface of substrates for photovoltaic cells. The conductive paste is substantially free of frit glass. According to one version of the invention, the conductive paste contains organometallic components which form a solid metal oxide phase upon firing and conductive material. The organometallic components are selected from a group which includes metal carboxylates or metal alkoxides, where the metal is boron, aluminium, silicon, bismuth, zinc or vanadium. According to another version, the conductive paste includes multiple precursors which form conductive elements upon firing or heating. The paste is adapted for adhesion to the surface of a substrate and upon firing, forms a solid oxide phase while forming an electrical conductor from conductive materials on the substrate.
EFFECT: use of said conductive paste in a line of a conductive array of photovoltaic cells provides high efficiency and fill factor of the photovoltaic cell.
14 cl, 2 tbl, 2 ex
SUBSTANCE: composition for making sensor coatings contains antimony-doped tin dioxide of the formula SbxSn1-xO2, where x=0.1-0.3, and water in ratio SbxSn1-xO2:H2O = 89-87:11-13 wt %. The method of preparing the composition involves hydrothermal treatment of tin and antimony hydroxides at 170°C for 48 hours. The tin and antimony hydroxides are obtained by dissolving Sn and Sb metal in concentrated hydrochloric acid, 18-20 wt %, while adding 3-5 wt % concentrated HNO3. The obtained solution is 2-3 times diluted with distilled water and a calculated amount of ammonia solution is added. Using a simple scheme, the disclosed method enables to obtain nanoparticles of said composition SbxSn1-xO2 with size of 30 nm and surface area of 154 m2/g, which can be used as the basic component of electroconductive ink for printing sensor arrays and microcontacts.
EFFECT: low labour and power consumption.
3 cl, 6 dwg, 3 ex
SUBSTANCE: conductive paste contains frit glass, a conductive material, an organic medium and one or more organometallic components which form metal oxides when burnt. The organometallic components are selected from a group comprising a metal carboxylate and a metal alkoxide, where the metal is boron, aluminium, silicon, bismuth, zinc or vanadium. When deposited on antireflecting coating on a substrate, the conductive paste is capable of penetrating the coating to form an ohmic contact with the substrate. Described also is a photovoltaic cell, having a semiconductor substrate, an antireflecting coating and lines of a conductive mesh formed from said conductive paste.
EFFECT: high efficiency of the photovoltaic cell, improved adhesion and ohmic contact between metallic elements and the substrate through antireflecting coatings.
10 cl, 1 tbl, 2 ex
SUBSTANCE: present invention relates to use of a composition which contains: a) 0.1-20 wt % binder which contains a polycarbonate derivative based on geminally disubstituted dihydroxydiphenyl cycloalkane, b) 30-99.9 wt % solvent, c) 0-10 wt %, with respect to dry mass, dye or mixture of dyes, d) 0-10 wt % functional material or mixture of functional materials, e) 0-30 wt % additives and/or auxiliary substances or a mixture thereof, as jet printing ink. The invention also relates to a method of producing a composite and a composite which contains a polymer layer on which there is a jet printing layer of said composition.
EFFECT: invention is aimed at producing agents which enable to use jet printing in making counterfeit protected documents and/or valuable documents based on polycarbonate layers, and which enable to deposit jet printing layers on layers which meet all optical requirements, which can be coloured, wherein lamination does not deteriorate optical properties of the layers and said layers do not act as a separating layer and facilitate formation of a monolithic composite.
31 cl, 2 tbl, 2 dwg, 8 ex
FIELD: physics, computer engineering.
SUBSTANCE: data medium includes a series of a substrate, a first ink-receiving layer which includes an inorganic particle, a water-soluble polymer having a hydroxyl group, a water-soluble polymer without a hydroxyl group and a boric acid mixture; and a second ink-receiving layer which includes an inorganic particle, a water-soluble polymer having a hydroxyl group and a boric acid mixture. The second ink-receiving layer does not include a water-soluble polymer without a hydroxyl group, or the second ink-receiving layer includes a water-soluble polymer without a hydroxyl group, but the content of the water-soluble polymer without a hydroxyl group relative to the content of the inorganic particle in the second ink-receiving layer is less than the content of the water-soluble polymer without a hydroxyl group relative to the content of the inorganic particle in the first ink-receiving layer.
EFFECT: more efficient operation of the device.
8 cl, 1 dwg, 2 tbl
SUBSTANCE: invention relates to printing material for inkjet printing and a method of manufacturing such printing material. The printed material comprises: a) a main layer having a first side and a back side; b) an absorption layer in contact with the first side of the main layer, at that the absorption layer has an absorption rate from 1×10-5 ms-0.5 to 1×10-3 ms-0.5, and/or the amount absorbed from 30 up to 95 vol. % relative to the total amount of the absorption layer; and c) a surface coating in contact with the absorption layer, at that the surface coating has permeability which is greater than 5.0×10-18 m2, and the surface coating comprises calcium carbonate.
EFFECT: improvement of the paper structure.
23 cl, 7 dwg, 4 tbl
SUBSTANCE: upper covering, suitable for printing or susceptible to printing, contains polyetherurethane, polyurethaneacrylate, cross-linking agent, where cross-linking agent is contained in amount from approximately 2 parts to approximately 15 parts per 100 parts of all solid substances and adhesion-preventive additive.
EFFECT: described is upper covering for front material, characterised by desired paint adhesion, resistance to formation of point defects, moisture/water resistance, optic characteristics and/or resistance to adhesion.
20 cl, 5 dwg, 7 tbl
FIELD: textiles, paper.
SUBSTANCE: invention relates to the pulp and paper industry and relates to the bases for printing with coating that provides improved printing quality and resolution capability at reduced consumption of ink. The product in the form of a paper substrate has on at least one of the first and second surfaces coating swelling under the influence of water, which thickness is less than 10 mcm. The base coating comprises some amount of pigment of coating, which is sufficient to impart at least one surface of the Parker surface evenness of about 4 and is dispersed in a binder matrix for the pigment of coating swelling under the influence of water, in a weight ratio of the coating pigment to the binder matrix of at least 2:1. The pigment of coating comprises larger porous coating pigment particles and smaller coating pigment particles in a weight ratio of at least 0.2:1. Coating of the base provides the porous surface receptive to ink.
EFFECT: invention provides enhanced printing quality and image resolution capability on paper base with coating on an inkjet printer at a reduced level of use of the ink.
57 cl, 4 dwg, 6 tbl, 3 ex
SUBSTANCE: invention relates to a method of manufacturing a smooth or ultra-smooth sheet material for overprinting. It comprises the following steps: manufacturing a multilayer structure consisting of a lower layer of plastic film, an intermediate anti-adhesive layer, and also an outer layer for overprinting, gluing one side of the substrate or the upper side of the layer for overprinting, placement of the substrate on the layer for overprinting with their laminating followed by removal of the plastic film from the layer for overprinting, and this layer for overprinting forms on the sheet of smooth or ultra-smooth side.
EFFECT: invention provides creation of an ultra-smooth sheet material suitable for overprinting and suitable for complete recycling, when possible.
25 cl, 6 dwg, 8 ex
SUBSTANCE: invention relates to information carriers. Claimed is an information carrier, successively including a substrate, selected from a polymer-covered paper, synthetic paper and plastic films, the first ink-receiving layer and the second ink-receiving layer, with the ink-receiving layer containing at least one substance, selected from aluminium oxide, aluminium oxide hydrate and highly dispersive silicon oxide, polyvinyl alcohol and boric acid, with a weight ratio of the boric acid and polyvinyl alcohol content in the first ink-receiving layer constituting 2.0 wt % or more and 7.9 wt % or less, with the second ink-receiving layer containing highly-dispersive silicon dioxide, polyvinyl alcohol and boric acid, and a weight ratio of the boric acid and polyvinyl alcohol content in the second ink-receiving layer constitutes 10.0 wt % or more and 30.0 wt % or less.
EFFECT: claimed carrier makes it possible to prevent cracking after the application of ink-receiving layers, possesses the high ink-absorbing ability and a resistance to cracking in bending.
6 cl, 4 tbl, 68 ex
SUBSTANCE: data storage device comprises a substrate and at least one ink receiving layer. The first ink receiving layer, which represents at least one ink receiving layer, comprises inorganic particles having an average primary particle size of 1 mcm or less, and the inorganic particles coated with the metal oxide. The inorganic particles covered with the metal oxide have an average primary particle size of 15.0 mcm or more. When the maximum value of the FLOP data storage device is represented as FLOPMax and the minimum value of FLOP is represented as FLOPMin, the FLOPMin is 2.5 or more and the value FLOPMin/FLOPMax is 0.80 or more and 1.00 or less.
EFFECT: proposed data storage device has a high degree of pearl lustre.
8 cl, 2 dwg, 3 tbl
SUBSTANCE: reversible thermosensitive medium for printing, comprising a base, a reversible thermosensitive layer for printing, provided on the base, and the antistatic layer, at that the antistatic layer is provided on at least a the reversible thermosensitive layer for printing or the substrate surface opposite to its surface on which the reversible thermosensitive layer for printing is provided, the antistatic layer comprises spherical fillers and a curable electroconductive polymer, and the spherical fillers satisfy the following expression (1): 4 ≤ the average diameter of particles of the spherical fillers/thickness of the antistatic layer ≤ 6… (1).
EFFECT: invention has improved antistatic properties.
12 cl, 15 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to method of tools marking. This method comprises provision of tool, its thermal treatment, provision of tool primer ply, printing on tool and application of electrolytic coat thereon. For printing of pattern at primer ply, a layer of dye is used. Layer of dye includes at least one ID element. Said ID element includes at least one ID zone with dye, background section around ID zone with no dye, and boundary line located around background section with dye. Electrolytic coating is applied to section without ID zone and boundary line. Note here that there a sharp contrast between coating and dye ply.
EFFECT: clear and stable mark.
14 cl, 11 dwg
FIELD: physics, computer engineering.
SUBSTANCE: recording medium successively includes a substrate, a first ink-receiving layer and a second ink-receiving layer, wherein content of boric acid in the first ink-receiving layer is 2.0 wt % or more and 7.0 wt % or less with respect to content of polyvinyl alcohol in the first ink-receiving layer, and content of boric acid in the second ink-receiving layer is 10.0 wt % or more and 30.0 wt % or less with respect to content of polyvinyl alcohol in the second ink-receiving layer; the outermost surface layer of the recording medium has particle content of 0.5 wt % or more and 5.0 wt % or less with respect to content of an inorganic pigment, said particles having secondary particle average size of 1.0 mcm or more and 20.0 mcm or less.
EFFECT: disclosed recording medium reduces cracking when bent.
5 cl, 6 tbl
FIELD: paper-and-pulp industry.
SUBSTANCE: when ground paper is manufactured, it is coated with ink-accepting coating. The latter contains latex binder, water-soluble binder, pigment mixture of amorphous silica with colloidal cationic silica and colloidal alumina, and ink-fixing agent. Coating operation is performed in two steps, weight ratio of coating applied in the first step to that in the second step ranging from 0.34:1 to 0.66:1. Reverse face of base paper is coated by detwisting coating. Further, coating is ennobled via superglazing at pressure in supercalender roll gap 30-75 bar.
EFFECT: improved workability of process and improved quality of paper due to increased surface strength.
4 cl, 7 ex