Ink glazes for digital printing

FIELD: printing.

SUBSTANCE: invention relates to ink glazes for digital printing, method of their manufacturing and the use of the noted glaze composition for the functional and/or decorative coating of ceramic and/or metallic material. Ink glazes for digital printing include a solid component obtained from organic and/or inorganic materials and dispersed in a polar and/or the aqueous liquid component. The solid component, where the particulates size is less than 40 microns, is from 10 to 70% of the total ink weight, and comprises: at least a charge material (flux), frit or ceramic raw material and the deposition preventing agent. The liquid component includes: water of at least 5% of the total ink weight, and at least 2% of one or more nonaqueous polar solvents of the total weight and additives.

EFFECT: invention provides producing ink glazes for highly-productive digital printing.

16 cl, 1 tbl

 



 

Same patents:

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

FIELD: chemistry.

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

FIELD: chemistry.

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

FIELD: chemistry.

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

FIELD: printing.

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

Conductive pastes // 2509789

FIELD: chemistry.

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

FIELD: chemistry.

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

PRINTING PRODUCT AND METHOD OF ITS MANUFACTURING

FIELD: chemistry.

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

FIELD: chemistry.

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: chemistry.

SUBSTANCE: invention relates to an enamel coating for coating the metal surface of an article. Disclosed is enamel coating material for coating the metal surface (5) of an article, which comprises a mixture of 5-50 vol % of catalytic enamel and 50-95 vol % of at least one of normal and pyrolytic enamel. Percentage composition of catalytic enamel and at least one of normal and pyrolytic enamel in said material is selected such that surface roughness according to average roughness coefficient (Ra) of the end enamel coating (7) ranges from 2 to 8 mcm and is suitable for further coating (8) by mechanical adhesion. Also disclosed are an article having a metal surface (5), at least partially coated with said enamel coating material, and a method of coating the metal surface of the article.

EFFECT: obtaining an enamel coating with surface roughness suitable for interaction by mechanical adhesion with a protective or easy-to-clean coating material or coating.

17 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to mass for obtaining enamel coating. Mass for obtaining enamel coating contains the following components, wt %: frit 70.0-72.0; mullite 11.0-15.0; gaize 14.0-19.0.

EFFECT: increased thermal stability of enamel coating.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to methods of depositing coloured decorative wear- and corrosion-resistant coatings on the surface of stone-cast construction and art articles. In the method of obtaining a coloured decorative coating on a stone-cast article, involving depositing frit on the surface of the article and subsequent heat treatment, the frit used is dry powder of silicate enamel with particle size of 0.01-0.03 mm with thermal coefficient of linear expansion close to that of the material of the stone-cast article. The frit is deposited by dispersing onto the open surface of the melt immediately after pouring the melt into an open mould of the article. Subsequent heat treatment is carried out in two steps, involving cooling to 600°C at a rate of 20-30°C/h and cooling to 60°C at a rate of 45-50°C/h. The most positive effect is achieved when using as frit silicate enamels FPvBS, FPvOS, FPvTSS, FPvOYAS, FPOYAS, FPTSS (GOST R 52569-2006).

EFFECT: low labour input and power consumption of the method while improving quality of the obtained coating on stone-cast articles.

2 cl

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for making enamel coating on ceramic articles, including ceramic articles for general use. The mixture for making enamel coating contains the following in wt %: frit 43.0-51.0; mullite 25.0-30.0; quartzite 15.0-20.0; kaolin 2.0-5.0; borax glass 2.0-5.0. The mixture has heat endurance of not less than 25 thermal cycles (heating to 450°C - cooling on air).

EFFECT: high heat resistance of the enamel coating.

1 tbl

Glase // 2452700

FIELD: chemistry.

SUBSTANCE: glase contains the following components, wt %: kaolin 3.0-8.0; feldspar 20.0-25.0; quartz sand 10.0-15.0; chalk 3.0-4.0; tin oxide 3.0-4.0; barium carbonate 3.0-4.0; cobalt sulphate 1.0-2.0; lead oxide 3.0-4.0; spodumene concentrate 41.0-47.0.

EFFECT: high frost resistance of the glase.

1 tbl

Glase // 2449958

FIELD: chemistry.

SUBSTANCE: invention relates to glase compositions for applying on face ceramic tiles. The glase contains the following components in wt %: quartz sand- 71-74; potash - 8-10; cobalt oxide - 0.4-0.6; copper oxide - 0.4-0.6; ground natural barite - 15-20.

EFFECT: obtaining environmentally safe glase.

1 tbl

FIELD: technological processes.

SUBSTANCE: invention relates to lighting technology, namely, manufacturing of glassy products, semiconductor light-radiating instruments, and also to a method of soldering without hydrogen. Mineral glass that contains oxides of elements of the II and/or III group of the periodic system are thermally treated in a nitric atmosphere at 500-1200°C in a container for dissociation of oxides. After transition of these elements' oxides on the glass surface into nitrides, the produced glassy composition becomes electroconductive and light-radiating during application of electric current. Additionally elements of the V and/or VI group of the periodic system may be added to the glassy light-radiating composition. The container for thermal treatment of the glassy composition comprising a fireproof shell includes an oxygen absorber in the inner volume. The length of the gap developed by the container parts from the external space into the inner cavity is more than the thickness of the gap 500 times and higher to the condition of full tightness. It is possible to increase the area of radiation by application of the specified compositions as a melted coating onto heat-resistant substrates. Mechanical and/or electric contacts to the light-radiating composition are produced by direct melting-in of the contact into the glassy composition, or by metallisation of the required areas with subsequent soldering by fusible solders.

EFFECT: giving electroconductivity and light radiation properties to glass as electric current flows through it.

4 cl, 1 dwg

Glase // 2428399

FIELD: chemistry.

SUBSTANCE: invention relates to a glase composition which can be used in making facade tiles. The glase contains the following in wt %: SiO2 18.35-21.05, CaO 1.0-2.0, K2O 4.0-6.0, BaO 4.0-6.0, Sb2O3 0.2-0.3, Al2O3 4.0-6.0, MgO 4.0-6.0, B2O3 55.0-60.0, Cr2O3 0.05-0.1, Fe2O3 0.05-0.1, Na2O 0.5-1.0, SO3 0.05-0.1, TiO2 0.05-0.1.

EFFECT: high frost resistance.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials and glase compositions for applying on ceramic tiles. The lustreless black glase contains the following in pts.wt: clay 15-20; quartz sand 67-70; pyrolusite 13-15.

EFFECT: obtaining environmentally safe glase with a lustreless black colour.

1 tbl

Glasing // 2420497

FIELD: construction.

SUBSTANCE: glasing contains the following components, wt %: feldspar 20-24; quartz sand 20-24; kaolin 3-5; heavy spar 48-51; soda ash 2-3.

EFFECT: production of environmentally safe glasing.

1 tbl

FIELD: printing.

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

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