Laminated colour-forming composition

FIELD: chemistry.

SUBSTANCE: colouring composition includes a thermally activated acid generator and halochromic leuco dye. Thermally activated acid generator selected from the group consisting of salts of amines and organometallic compounds containing boron or silicon, and neutralized amine derivatives of polyalkyl naphthalene polysulfonic acid. The coated substrate also covers the thermoplastic polymer layer such that the dye composition is between the substrate and the thermoplastic polymer layer and/or in the thermoplastic polymer layer.

EFFECT: protecting the dye composition from discolouration during lamination by melt extrusion and increasing the impermeability of the substrate to liquids.

20 cl, 1 dwg, 3 tbl, 10 ex



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


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: packaging industry.

SUBSTANCE: packaging material (10a) comprises a core layer (11) of paper or cardboard, the first outer liquid-tight heat-sealable polyolefin layer (16), the second inner liquid-tight heat-sealable polyolefin layer (15) and a layer barrier for gas oxygen (12). The layer barrier for gas oxygen (12) is applied in the form of a liquid film coating of a liquid gas barrier composition directly on the inner side of the core layer (11), followed by drying. And the liquid composition comprises a polymer binder dispersed or dissolved in an aqueous medium or a solvent medium. The packaging multilayer material additionally comprises a vapor-deposited barrier layer (14) applied in the form of a coating on the polymeric film substrate. The barrier layer (14) is located between the layer barrier for gas oxygen (12) and the inner heat-sealable polyolefin layer (15) by an intermediate polymer layer (13).

EFFECT: packaging multilayer material according to the invention has good gas barrier properties suitable for long-term aseptic packaging, and good internal adhesion between the layers, providing a good integrity of the packaging container made of multilayer material, for long term storage of liquid food products while maintaining nutritional value in ambient conditions.

42 cl, 13 dwg, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: composition contains 55.5-86.2 pts.wt aqueous dispersion of a copolymer with particle size of not more 0.1 mcm, containing 35.5-38.0 wt % butyl acrylate, 16.5-18.0 wt % 2-ethylhexyl acrylate, 10.0-11.0 wt % methyl methacrylate, 13.5-15.0 wt % styrene, 14.0-15.0 wt % α-methyl styrene, 5.0-5.5 wt % methacrylic acid, and 13.8-44.5 pts.wt aqueous solution of isopropyl alcohol mixed with water in ratio 1:1-3:1. The aqueous acrylic dispersion can additionally contain triallyl isocyanurate and/or vinyl triethoxy silane. The primer composition can additionally contain a wetting agent, an antifoaming agent, complexing agents, adhesive and biocidal additives.

EFFECT: improved continuity and adhesion strength of a polymer coating on aluminium foil, which ensures strong adhesion of printing ink on foil.

4 cl, 2 tbl, 24 ex

FIELD: metallurgy.

SUBSTANCE: proposed article is made from polyethylene or propylene. Note here that article material contains volatile corrosion inhibitor "ВНХ-Л-20" dispersed in contact inhibitor "ФМТ" at the following ratio of components, wt%: %: "ВНХ-Л-20" - 1.2," ФМТ - 1", polyethylene or propylene - 97.8.

EFFECT: higher efficiency of metal protection.

6 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to films and packaging for a myoglobin-containing food product using a myoglobin blooming agent. The film for packing a myoglobin-containing food product has one or more layers which are in form of a sheet or bag and has a layer for contact with the food product which contains a myoglobin blooming agent, and an oxygen barrier layer. The packaging is meant for a myoglobin-containing food product which contains at least 5 wt % water, and has a container and a polymer film, having an oxygen barrier layer and a layer for contact with the food product.

EFFECT: myoglobin blooming agent enables to obtain the desirable appearance of a food product or preserves its appearance while also prolonging the shelf life and freshness of meat.

96 cl, 12 ex

FIELD: chemistry.

SUBSTANCE: polymeric film consists of a block-copolymeric peelable middle layer and at least one adhesive non-peelable surface layer. The middle layer makes up 95% of the thickness of the film. The surface layer contains a terpolymer of polyethylene/polypropylene/polybutylene and has thickness from approximately 0.1 mcm to approximately 1.5 mcm. An adhesive coating is deposited on the surface layer. The adhesive coating and/or surface layer is hot-sealable. The middle layer has at least one olefin component. The adhesive polymeric film has high adhesion capacity in a wide temperature range and peeling capacity. Bonded packaging is made from the polymeric film which contains a block-copolymeric substrate and adhesive coatings and/or surface layer are obtained on the substrate. The packaging is obtained by wrapping the packed article with the film such that at least one area for overlapping and hot-sealing is obtained.

EFFECT: adhesive region can be opened by manually separating overlapping sections of the film without breaking the film in or around the bonded region.

24 cl, 1 tbl, 1 ex

FIELD: personal use articles.

SUBSTANCE: unitised packaging container for sheet material containing several packs of paper wrapped into their own wrapper, which are placed into common protective wrapper, in which plastic, mixture of polymers or another suitable material that moderates penetration of moisture is added to at least the main paper layer of wrapper. At the same time unitised packaging container includes material of protective wrapper and wrapper material used for packs of paper, which are made by adding plastic, mixture of polymers or other suitable material to both in such an amount that speed of water vapours penetration through protective wrapper and wrapper as a whole makes less than approximately 50 g/m2/day, according to calculation as per ISO Standard 2528:1995.

EFFECT: development of cheap unitised packaging container, which provides good protection of sheets and is convenient to carry.

23 cl, 12 dwg

FIELD: textile, cotton.

SUBSTANCE: carton is intended for the packaging and can be used, for example, in the cellulose and cotton industry. On at least one of the carton's surface there are micro-lamellate cellulose particles. These particles have average volume size of the particles from approximately 20 micron to approximately 150 micron, average numerical size is from approximately 5 micron to approximately 20 micron and 95-percent average volume size not exceeding approximately 300 micron. This carton is used to produce package material. The mentioned carton can contain covering layer including the pigment. The covering layer is made of the composition containing the mentioned above micro-lamellate cellulose particles.

EFFECT: increases smoothness, toughness at the bend sides and improves the strength of the carton; it also increases its non-transparency and chalking of its covering.

24 cl, 8 dwg, 10 tbl

FIELD: technological processes; chemistry.

SUBSTANCE: package material with volatile corrosion inhibitor has a form of hose, half-hose or canvas with thickness of 80-250 mcm. It includes polyolefin or polyolefin mix and "ВНХ-Л-20" volatile corrosion inhibitor dispersed in "ФМТ" contact corrosion inhibitor at the following component rate, mass % : "ВНХ-Л-20" volatile corrosion inhibitor - 0.13-1.13; "ФМТ" contact corrosion inhibitor - 0.80-2.2; the rest is polyolefin or polyolefin mix. Package material can include both one and several layers due to co-extrusion, pasting, lamination. Tests proved ant-corrosion effect of the film, particularly in conservation of pipes, steel bridge fastening bolts, steel ball bearing pin rolls (without lubricant). Production conserved by this method is delivered to customer and can resist corrosion for 1 year at least, or can be stored at a heated/cold storehouse (at room temperature of over +5°C and under +55°C) resisting corrosion for up to 5 years.

EFFECT: increased product life span without corrosion.

8 tbl, 11 ex

FIELD: food industry.

SUBSTANCE: invention relates to agent and method for protection of foodstuffs from damage. Agent for protection of foodstuffs from damage represents birch bark extract as a liquid component wherein birch bark is dissolved or forms a dispersed system and wherein the content of birch bark extract and a liquid component is, wt.-%: birch bark extract, 0.01-40, and liquid component, 60-99.99. By other variant the agent used for protection of foodstuffs from damage represents package material comprising a base-forming component and a modifying agent wherein birch bark extract is used in the amount 0.01%, not less, of the base-forming component mass. Protection of foodstuffs from damage is provides by applying the indicated agent possessing high activity with respect to inhibition of growth of different pathogenic microorganisms on surface of foodstuffs or by packing the foodstuff into package material showing the same properties. Invention provides decreasing loss of foodstuffs in storage and transporting. Invention can be used for elevating storage time of sausage, cheese, fresh and processed meat, fish production, fruits, vegetables and so on.

EFFECT: valuable properties and enhanced effectiveness of agent.

7 cl, 13 ex

FIELD: chemical industry; other industries; production of the disposable containers with the latex coating.

SUBSTANCE: the invention presents the disposable molded thermoplastic container for example, the cup, the bowl made out of the foaming polystyrene particles has the latex coating, for example, made out of the latex of the interpolymer of methylmethacrylate and styrene, the latex of the interpolymer of methylacrylate and styrene, the latex of the interpolymer of the acrylic acid and styrene and the latex of the interpolymer of the butadiene and styrene applied on, at least, its internal surface by the dipping, paint-brushing or sputtering methods for the improved strength against leakage and-or the stains formation and-or durability at storage. The coating may be applied on the outer surface of the container for rising the anti-leakage strength and realization of patterning. The invention also considers the method of molding of the container, the article and usage of the container for improvement of the method of storage of the liquid and food substances.

EFFECT: the invention ensures, that the manufactured container, the article and the coating shall improve the storage of the liquid and food substances.

21 cl, 4 ex, 4 tbl

Composite film // 2554181

FIELD: chemistry.

SUBSTANCE: invention relates to polymer films for sealing containers and to a composite film. A composite film for sealing containers by sealing up a container with the composite film or a cover joined with a container on a peripheral sealing surface has a bearing layer made of metal foil and a sealing layer joined to the metal foil. The sealing layer includes a co-extruded layer with a cohesively decomposing middle layer and adhesion booster layers on both sides of the middle layer.

EFFECT: invention enables to produce a composite film which is suitable for sealing on a sealing surface of uncoated tin plate.

10 cl, 4 dwg