A method of manufacturing a two-layer plates with a protective and decorative coating
(57) Abstract:Use: wood processing, in particular in processes for the manufacture of wood-based materials with a protective and decorative coating. The inventive method provides for the formation of the Mat, which is pressed in the molds for 1 min at specific pressure of 2.5. . . 5.0 MPa. Then, on the surface of the partially formed of the base plate stack textured layer of granular quartz-containing material with thickness of 0.5-3 mm, for example granite. Produce a hot pressing plate at 160-180 With in the molds for 1.5 to 3.0 min 10 mm thick pressed wood carpet. Textured layer obtained two-layer plates upravlyaut flow of low-temperature plasma with plasma power cord 65. . . of 76.8 kW with a speed of movement of the products of 0.08. . . 0.17 m/s After plasma processing textured layer is formed vitreous decorative fire retardant coating. table 1. The invention relates to woodworking industry, namely to methods for protective and decorative coatings on wood and polymer-containing products.The purpose of the invention is improving the fire resistance of the coating.When short-VA, which instantly hardens, resulting is formed on the surface of the vitreous coating. The obtained glassy coating is more fire resistant than the core, represented by wood and polymer-containing materials. Furthermore, the vitreous coating has a protective and decorative properties and has a high strength of adhesion with the base.The invention is illustrated by the following examples.P R I m e R 1. The manufacture of wood-based panels with a protective and decorative coating is produced as follows. First from wood pulp form the carpet and partially podpisovat it.The formation of the Mat is carried out woodpulp (particle size up to 5.0 mm), the thickness of the bulk of the Mat 30 . . . 40 mm and humidity is not more than 5 % . The ratio of wood pulp of hardwood and softwood can be any. Knitting is missing.The prepressing wood carpet carried out in a cold way in the molds as the specific pressure of 2.5 . . . 5.0 MPa for 1 minNext, on the surface of the partially formed of the base plate stack textured layer of granite and produce hot pressing plate at 160 . . . 180aboutWith the molds in tece upravlyaut flow of low temperature plasma. In the plasma treatment of the surface textured layer is formed vitreous protective coating. The mineralogical composition of the textured layer, sealing and adhesive strength are shown in table.P R I m m e R 2. At the bottom of the pre-form is placed a layer of crushed quartz-containing component, for example steklokrom thickness of 0.5 . . . 3 mm, Then on the specified layer by known techniques is formed into a plate on the basis of wood chips and sawdust. The surface textured layer on said plates further upravlyaut low-temperature plasma in the modes specified in example 1, resulting on the surface of these products is formed vitreous coating with flame retardant, protective and decorative properties and high adhesion to the core (2.4GHz, MPa).P R I m e R 3. Analogous to example 2. Characterized in that as the basis, which is placed on a previously prepared textured layer is formed plate-based polymer-containing components (aminos). Astringent is aminoplast brand CFA-2 GOST 9359-30 in the amount of 30 . . . 50 % by weight. The surface textured layer plate upravlyaut low-temperature plasma under modes OBLASTNOE vitreous protective coating (adhesion strength with the base is 2.6 MPa).The use of the invention allows to create highly flammable slabs of wood and polymer-containing materials fire-resistant coating. When this coating are both decorative, which expands the scope of these materials. A method of MANUFACTURING a two-layer PLATES WITH a PROTECTIVE and DECORATIVE COATING, comprising forming the core layer of wood or polymer-containing materials and the creation on its surface textured layer, characterized in that, to improve the fire resistance of the coating, textured layer made of a granular quartz-containing material, followed by its melt flow of low temperature plasma.
FIELD: production of splint-slab plates.
SUBSTANCE: method comprises laying mould on the bottom, supplying mixture of waste with a binder, coating the mixture with a paper from above, and molding.
EFFECT: improved environmental protection.
1 dwg, 1 ex
FIELD: woodworking industry.
SUBSTANCE: method includes preparation of composition that contains wood particles and binder, and production of at least one mat of nonwoven material. Composite mat is formed using composition and mat of nonwoven material. Composite mat contains mat formed from composition, besides mat has the first side and the second side, and mat of nonwoven material which contacts with the first side of mat formed from composition. Sufficient heat and pressure are applied to composite mat in order to produce laminated product, which contains of lumber, having the first side, the second side and edges, with mat of nonwoven material fixed to the first side of board from lumber.
EFFECT: produced boards have higher strength and moisture resistance.
10 dwg, 1 tbl, 1 ex
FIELD: process engineering.
SUBSTANCE: invention relates to production of plate materials based on cellulose-containing particles impregnated with glue base on carbamide-formaldehyde resin to be used woodworking industry. Cellulose-containing particles are mixed with glue based on carbamide-formaldehyde resin and acid solidifier. Said cellulose-containing particles represent flax boon. Note here that said glue comprises additionally modifier butanol-1 in amount of 1.4…1.6% of carbamide-formaldehyde resin weight.
EFFECT: production of new structural material with increased physical and mechanical properties.
1 cl, 2 tbl, 2 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to wood composite material and method of its fabrication. Proposed wood material is produced from reprocessed wastes of sticky multilayer sheets containing material to be glued, glue and anti-adhesion material, and minced material processed in its turn into wood composite material. Note here that said wastes of multilayer gummy sheets are produced in fabrication of said sheets at devices for forming adhesive multilayer sheets and/or supplied by ultimate users of said sheets.
EFFECT: higher elastic properties, reduced production costs.
15 cl, 5 ex
SUBSTANCE: invention relates to a sealing unit designed for use on a line for manufacturing of building panels. In the specified line the mortar is transferred on a movable conveyor relative to the support frame, and cut fibres are placed onto the mortar. The device comprises the first and second extended shafts arranged as a whole. Both shafts are attached as capable of rotation to the support frame and comprise accordingly the first and second sets of discs spaced along the axis and axially attached to them. At the same time between the neighbouring discs on the first and second shafts there are grooves formed being an external peripheral edge of the appropriate shaft. Besides, the first shaft is arranged at one level along the horizontal line relative to the second shaft and so that the specified discs are located as alternating with each other, and when looking at it, peripheries of the discs of the first and second sets cover each other.
EFFECT: elimination of clogging and damage of a device with lumps or a hardening mortar.
9 cl, 8 dwg
SUBSTANCE: adhesive composition contains a polyfunctional isocyanate, polyether polyol and a catalyst. The catalyst consists of at least one organic compound of iron and at least one chelating ligand. The multicomponent adhesive composition is prepared in form of at least two inter-reacting chemical components. One of the at least two inter-reacting chemical components contains a polyfunctional isocyanate and a catalyst, and the other contains polyether polyol. The multicomponent adhesive composition is used to produce articles from bound lignocellulose composite based on a lignocellulose substrate, especially for making oriented fibre panels.
EFFECT: invention enables to obtain articles using filler with high moisture content, which are structured at low pressing temperatures without reducing efficiency of the press.
4 tbl, 1 ex, 17 cl
FIELD: process engineering.
SUBSTANCE: this invention relates to method of making laminar floor panels including substrate comprising wood-polymer composite (WPC) and top layer of laminate. Proposed method comprises the following stages: making granulates WPC wherein natural fibers are encased in polymer, making the layer of granulated material and its fusion, compacting fused layer in continuous mode, laying, at least, base layer on said fused granulated layer to compact both, attaching laminate top layer to base layer to produce a sheet and final and processing and cutting said sheet to make panels.
EFFECT: simplified process.
8 cl, 3 dwg
FIELD: process engineering.
SUBSTANCE: construction boards with homogeneous decorative surface with wear layer including fibers, binders and wear-resistant particles.
EFFECT: higher wear resistance.
26 cl, 17 dwg
SUBSTANCE: invention relates to wood and/or composite wood materials, in particular to wood-fibre boards, widely used as an initial material in many processing industries. Described is application of a material, selected from the group of phenol derivatives of formula IV, V, VI and their mixture as a mediator in production of lignocellulose-containing moulded articles, in particular the wood-fibre and/or composite materials. Especially preferable materials in the group of phenol derivatives of formula IV are: acetosyringone with R1, R2, R3 = methyl, and syringaldehyde with R1, R2 = methyl, R3 = H; in group of formula V - acetovanilone with R1, R2 = methyl, R3 = H, vanillin with R1 = methyl, R2, R3 = H and ethyl vanillin with R1 = ethyl, R2, R3 = H; in group of formula VI - methylsyringate with R1, R2=methoxy, R3=methyl and vanillic acid with R1, R3=H, R2=methoxy. The said material is applied together with, at least, one phenol-oxidising enzyme with ratio, equal ≥ 0.5 unit/ml of enzyme per 1 mmol of the mediator to ≤ 40 unit/ml of enzyme per 1 mmol of the mediator. Also described is a method of manufacturing the lignocellulose-containing moulded articles with application of the said material and the moulded article obtained thereby.
EFFECT: invention provides simplification of technology of the wood-fibre boards with preservation of their physical-chemical parameters.
9 cl, 2 dwg, 1 tbl, 6 ex
SUBSTANCE: claimed invention relates to a method of obtaining a lignocellulose composite product. Described is the method of obtaining the lignocellulose composite product, which includes the application of a masking-preventing additive on a lignocellulose composite substrate, obtained as a result of its processing with a polyfunctional isocyanate composition, which has free isocyanate groups, and/or on the moulding surface, with the masking-preventing additive containing more than approximately 50 wt % of the total weight of the masking-preventing additive of fatty amine alkoxylate, which has free hydroxyl groups; and the application of pressure to the lignocellulose composite substrate with the application of the moulding surface. Also described is the masking-preventing composition, characterised above, for the application on the moulding surface of an apparatus for obtaining lignocellulose composite products, where the masking-preventing composition contains a liquid carrier, selected from the group, consisting of water, a liquid hydroxyl-containing compound, which contains from 1 to 4 carbon atoms, and their mixtures; and the masking-preventing additive, dispersed in the liquid carrier, with the masking-preventing additive containing fatty amine alkoxylate, which has free hydroxyl groups.
EFFECT: achievement of reduced masking on the moulding surfaces.
17 cl, 1 dwg, 4 tbl, 1 ex
FIELD: protective coatings.
SUBSTANCE: composition contains perchlorovinyl resin, titanium dioxide filler, pigment , and solvent, wherein solvent is ethyl acetate or dichloromethane and ethyl acetate, or dichloromethane and acetone.
EFFECT: shortened drying time, simplified composition, and reduced toxicity.
FIELD: building material production, particularly to create facing articles for decorative outer wall finishing.
SUBSTANCE: production method involves manufacturing substrate having necessary shape and dimensions; selecting polymeric compositions having main and additional color shades corresponding to color spectrum of selected pattern; applying the selected compositions on substrate face in several layers; providing composition polymerization to obtain ready article. Article substrate is manufactured of galvanized metal sheet. The polymeric compositions are powder compositions, which are sprayed on substrate surface. Layers having additional color shades are applied on substrate surface with the use of forms provided with figured orifices corresponding to selected pattern. Each layer except for the last one is subjected to prior polymerization at 180-190°C for 5-7 min. After the last layer application all layers are polymerized at the same temperature for 20-25 min.
EFFECT: increased sharpness of pattern color boundaries and decreased article production time.
FIELD: household goods and personal effects.
SUBSTANCE: natural ornamental stone is coated with at least one layer of paste. Then paste is to be solidified. Paste includes cement and natural ornamental stone granules which are 0.1-1.0 mm in size. Cement and granules are taken at weight ratio 1:3 and water-cement ratio 0.6-0.8. After that stone is mechanically treated.
EFFECT: wide variety of individually designed inserts.
SUBSTANCE: present invention pertains to a layer with an image meant for use in absorbent fabrics. An image is made, for example, in the form of a text or picture. An image is formed with a number of dots. When the layer is in the first state, the dots have the first surface density, which form an identifiable and clear image. When the layer is in the second and then outspread state, the dots have a second surface density, which is below the first surface density in the first state. In this case the image goes into the second surface state essentially indecipherable or unclear to the observer at the given distance because of a lower surface density.
EFFECT: obtaining the effect of reduction in visibility of the image on the fabric.
9 cl, 10 dwg
SUBSTANCE: invention relates to construction and a method of maintaining curbs. The method involves painting curbs in dry weather at above-zero air temperature with an aqueous 50-70% solution of strong-hydraulic caustic lime, obtained from limestone.
EFFECT: invention increases preservation and aesthetic qualities of curbs.
FIELD: woodworking industry.
SUBSTANCE: material comprises fibrous base from craft paper with applied impression of desirable printing dye with impregnation by resin or mixture of resins coloured into a desired colour. Impregnation with resin or mixture of resins is carried out prior to application of impression or after application of impression. Fibre base is soaked with application of one or more layer of resin. Resin or mixture of resins is selected from group, which contains phenol, amine, acryl and/or other similar resins. Coating material is produced by method, where resin or mixture of resins is used, and craft paper is used as fibre base. Resin or mixture of resins are coloured using desired dye. Impression is applied onto craft paper, using desirable printing dye, and impregnated, using specified resin or mixture of resins.
EFFECT: improved strength of coating material and high colour resistance to light and temperature.
18 cl, 4 tbl, 2 ex
FIELD: woodworking industry.
SUBSTANCE: fixed surface of workpiece is processed with a wire grinding tool. The tool is moved uniformly along the workpiece and turned about its own axis. Rotation speed is approximately 2500 rpm. MDF workpiece is used as the above workpiece.
EFFECT: invention allows obtaining decorative surfaces on MDF workpieces, which imitate natural wood.
2 cl, 2 dwg
FIELD: printing industry, decorative art.
SUBSTANCE: invention relates to light industry and method for formation of decorative art object. A layer of transparent heat resistant varnish is applied onto glass base with thickness of 15-150 mcm. Then the object is exposed to annealing to produce light-golden or golden or golden-bronze or copper colour. Further a mixture of metals or alloys, in which at least 30% of mass is contributed by aluminium powder, is applied onto varnish layer by gas dynamic sputtering.
EFFECT: invention makes it possible to create decorative art object that has a property to imitate coating of plates with golden foil, to provide plates with spatial perspective, voluminousness and smoothness of spatial transition of light-reflecting effect.
5 cl, 1 ex
FIELD: printing industry, decorative art.
SUBSTANCE: invention relates to production of consumer goods, in particular, to technological processes to make art objects of wood with khokhloma ornament. Protective-decorative coating is formed by application of electroconductive composition on an object and application of single-colour or multi-colour powder paint onto electroconductive composition with its further polymerisation by method of electrostatic spraying at the temperature of 100-200°C for 3-30 min., drying of ornamented surface with art paints at the temperature of 80-120°C for 0.5-2.5 hr., colourless varnishing with polymer paint at the temperature of 100-180°C for 3-25 min.
EFFECT: improved technological process of khokhloma objects production with the purpose to reduce labour costs for their manufacturing and to improve paint and varnish coating under operating conditions, with long-term usage without deterioration of the object's art value.
SUBSTANCE: invention relates to production of artificial materials which imitate natural materials. The crude mixture for producing material which imitates natural stone contains, wt %: coal dust 5.0-10.0; ground mica 10.0-15.0; water 25.0-30.0; carbonate sand 15.0-20.0; quartz sand 10.0-15.0; portland cement 20.0-25.0.
EFFECT: high water resistance.