Method of application of nanoparticles

FIELD: nanotechnology.

SUBSTANCE: invention relates to methods of applying nanoparticles to the surface for creation of a layer with embedded nanoparticles of the photocatalyst, and also to a method of obtaining a uniform distribution of nanoparticles in the upper layer of plates and panels. The method of manufacturing a sheet comprising photocatalytic nanoparticles comprises the steps of impregnating (41, 42) the sheet (10) with polymeric resin, preferably comprising abrasion resistant particles; spraying (43, 40) on the sheet (10) new-impregnated with the polymer resin in an uncured and moist state, the impregnating liquid composition comprising dispersed photocatalyst nanoparticles; drying and/or at least partial curing (44, 45) of the said impregnated sheet comprising the polymeric resin and the impregnating liquid.

EFFECT: application of photocatalytic particles by more rational method and improvement of the distribution of photocatalytic nanoparticles, thereby improving the photocatalytic effect.

18 cl, 2 dwg, 1 tbl

 

The technical field TO WHICH the INVENTION RELATES

The invention mainly relates to methods of applying the nanoparticles on the surface to create a layer with embedded nanoparticles of photocatalyst. In addition, the invention relates to a method of producing a uniform distribution of nanoparticles in the upper layer circuit boards and panels.

The LEVEL of TECHNOLOGY

It is well known obtaining a laminated structural panels with a surface containing laminated sheets of paper. Also known is a new type of panel called wood fiber flooring (MDF), which is disclosed in WO 2009/065769, which shows the products and the ways to obtain such a product, which is also used nanoparticles. In addition, in WO 2009/062516 described deposition of nanoparticles on a laminated surface or on the paper overlay.

The documents below describe some ways of handling paper or impregnated paper before final drying and before the paper can be used in laminated upholstery cardboard.

In US 2009/0208646 A1 describes a coating type coating wet composition on the wet material, impregnated overlay through an inlet channel for coating. Control the thickness of the layer is achieved by wiping devices which remove the excess coating. The document shows a� method of obtaining overlay in particular for laminates, comprising impregnation of paper, with the following stages of the method:

the unwinding of the overlay paper from the roll to receive the paper web (10);

the moistening of the paper web (10) on one side of the impregnating medium (14);

the wicking paper web (10) impregnating medium (18);

the application in the form of a wet composition on the wet material is coarse-grained corundum dispersion and resin (27) on one side of the paper fibers (10);

on the contrary, the application in the form of a wet composition on the wet material covering substances (29) in the form of resin and finely ground corundum on the paper web (10);

dosing of the applied coating substance (29) using a wiping device (32) to achieve the desired coating mass;

drying the paper web (10) using the inlet duct.

In US 3798111 described the intrusion of particles into the paper machine, where the particles can be distributed throughout the paper, entangled in the fibers.

In WO 2007144718 disclosed coarse suspension of nanoparticles deposited on pre-treated carrier sheet of resin. In this method, it is specified that the suspension contains a resin. The method comprises adding a suspension by means of a wire doctor roller and/or the raster roller, or other methods involving the use of rollers and/or blades. And �also air blades.

Summary of the INVENTION

Variants of embodiments of the invention relate to the method of applying nanoparticles to the surface to create a layer of sheet or surface with photocatalytic nanoparticles. The task consists in increasing the effect of photocatalytic nanoparticles at the introduction of particles into the layer of sheet or surface, i.e. in the maintenance activity at a high level and in maintaining the desired properties of the sheet or layer with embedded particles.

In WO 2009/062516 A2 shows the use of photocatalytic nanoparticles in the surface layer to enhance, for example, cleansing abilities. In addition, the disclosed method for coating nanoparticles. Method according to the variants of embodiment of the invention provides increased transparency, increased endurance, and increased distribution of nanoparticles.

The first aspect of the invention consists in the method of manufacturing a sheet containing photocatalytic nanoparticles, the method comprises the steps:

impregnation of the polymer resin sheet, preferably containing wear-resistant particles;

spraying the leaf that is impregnated with a polymer resin in uncured and wet, impregnating with a liquid composition containing dispersed photocatalytic particles;

drying and/or at least partial curing of the aforementioned impregnated sheet comprising a polymeric resin and impregnating liquid.

A worksheet can contain cellulose fibers.

Is preferable for impregnating a liquid composition containing a solvent containing water.

The method may include the stage between the stage of impregnation and stage of sputtering, in which the polymer resin is partially dried.

By applying photocatalytic nanoparticles on a wet surface, in particular, increases the distribution of the particles.

Impregnating liquid composition may contain photocatalyst particles and the solvent, and the said solvent is selected from water, ethylene glycol, butyl ether, aliphatic linear, branched or cyclic or mixed aromatic-aliphatic alcohols, such as methanol, ethanol, propanol, isopropanol, butanol, Isobutanol, benzyl alcohol or methoxypropanol, or combinations thereof.

A second aspect of the invention is a method of producing laminated boards or upholstery cardboard by setting the sheet obtained according to the first aspect, the core preferably panel KVP, and the application of heat and pressure.

The third aspect of the invention is a method of manufacturing a sheet containing photocatalytic nanoparticles, the method comprises the steps:

mixing the photocatalytic particles in the polymer resin, to obtain the impregnated mixture

applying the impregnated mixture on the sheet, preferably by spraying.

The fourth aspect of the invention is a method of producing a sheet of paper containing photocatalytic nanoparticles introduced in a paper installation, preferably prior to wrapping paper.

The fifth aspect of the invention is a method of producing panels WFF containing photocatalytic particles, the method comprises the steps:

1. Scattering of dry mixture containing the wood fibers, termomaterialy resin, preferably melamine resin, and wear resistant particles on the core.

2. Applying organic solvent to the mixture on the core.

3. Spray impregnation fluid composition comprising dispersed photocatalytic nanoparticles, preferably dispersed in water.

4. The application of heat and pressure.

Stage 2 and 3 of the method can be applied in any of the ways disclosed in WO 2009/065769 and WO 2009/124704 to obtain fiberboard panels.

It is preferred that the method was carried out in the order listed 1-4.

It is preferred that an organic solvent containing a ketone, such as acetone and methyl ethyl ketone and/or alcohol, such as ethanol, propanol and methanol, and/or acetate such as butyl acetate, ethyl acetate. Preferable embodiments of the organic Sol�the sideh is ethanol.

In another embodiment, the method include the step of applying, preferably before stage 2, the liquid from the wetting agent to the mixture, preferably in the form of water containing 1 wt.% BYK-348 from the company BYK Chemie. Liquid with a wetting agent and an organic solvent can also be applied together.

It is well known that a nanomaterial is not exactly a nanomaterial, and is characterized embedded in nanoparticles that are important for its characteristics and, for example, the properties of the said Board or upholstery cardboard. In a particular preferred embodiment according to any of aspects embedded nanoparticles have the size of the primary particles or the size of the crystal <50 nm, such as <30 nm, preferably the size of the primary particles or the size of the crystal <20 nm. Thus, the efficiency of the nanoparticles increases and/or to achieve a specific effect requires a smaller nanoparticles.

Primary particles are rarely present in the form of separate primary particles, and are present in more or less aggregated forms. Effective control of agglomerate size and/or cluster is particularly preferred. Therefore, in preferred embodiments the embodiment of the embedded nanoparticles have a size of the cluster or unit of <100 nm, for example <80 nm, and preferably, the cluster size or the components�and < 60 nm, for example <40 nm, and even more preferably, the size of the cluster or unit of <30 nm, e.g. <20 nm. Thus, these nanoparticles can be easier to evenly disperse on the overlying layer and the layer becomes more optically transparent.

In any embodiment of the present invention, the concentration of the said nanoparticles in said impregnation fluid can be >1 wt.%, for example >5 wt.%, preferably, the concentration of mentioned nanoparticles >10 wt.%, for example >15 wt.%, and even more preferably the concentration of mentioned nanoparticles >20 wt.%, for example >25 wt.%.

In addition, in either embodiment the nanoparticles in said impregnation fluid composition may have a cluster size or the unit <100 nm, for example <80 nm, preferably the size of the cluster or unit of <60 nm, for example <40 nm, and even more preferably, the size of the cluster or unit of <30 nm, e.g. <20 nm.

According to all the aspects of the invention, the amount of impregnating liquid composition per square meter of the covering sheet (sheets) may be in the range 1-200 ml/m2for example , in the range 5-100 ml/m2and preferably in the range 10-50 ml/m2, for example 20-40 ml/m2mentioned impregnating liquid composition per square meter of the covering sheet (l�ists), want to impregnate.

The polymer resin used for the above-mentioned polymer resin composition containing nanoparticles, it is possible to select from the group consisting of melamine-formaldehyde resin, phenol formaldehyde resin, urea-formaldehyde resin, melamineformaldehyde resin, polyacrylamide resin, urethane resin, epoxy resin, silicone resin, acrylic resin, vinyl resin or mixture thereof.

In the variants of embodiment of the invention photocatalytic nanoparticles in said polymer resin composition of the nanoparticles can be introduced in the form of a dry powder, as a paste or in the form of a slurry, and then dispersed in the polymeric resin.

In the variants of embodiment of the invention, the mentioned solvent suspension with photocatalytic nanoparticles, dispersed in the polymeric resin, selected from water, ethylene glycol, butyl ether, aliphatic linear, branched or cyclic or mixed aromatic-aliphatic alcohols, such as methanol, ethanol, propanol, isopropanol, butanol, Isobutanol, benzyl alcohol or methoxypropanol or combinations thereof.

Variants of embodiment of the invention can be achieved according to the sixth aspect of the invention by means of a method of manufacturing boards or upholstery cardboard, and the method includes:

about�AspectJ the upper surface of the base or composed of laminated boards or upholstery cardboard with a coating in the form of a covering liquid composition, containing photocatalytic nanoparticles; and

drying and/or curing the above-mentioned base or laminated boards or upholstery cardboard following the said step of coating.

Covering the liquid according to any one of the above aspects apply to the surface of the above-mentioned material by spraying, dipping, rolling, spraying, brushing or other conventional methods of application. The covering number of liquid composition per square meter of surface of the above-mentioned material may be in the range 1-200 ml/m2for example , in the range 5-100 ml/m2and preferably in the range 10-50 ml/m2, for example 15-25 ml/m2mentioned covering the liquid composition per square meter of surface mentioned material.

Some combinations of ingredients can be transformed into fully functioning products. Below are three examples showing three functional variant embodiment of the invention.

BRIEF description of the DRAWINGS

The disclosure will be further described with reference to preferred options of the incarnation, and in more detail with reference to the accompanying exemplary drawings, in which:

Fig.1 illustrates a production line for receiving paper overlay;

Fig.2 illustrates a processing line to obtain securities� overlay, contains the installation for spraying.

DETAILED DESCRIPTION of EMBODIMENTS

The present invention relates to the manufacture of the overlay or boards, or upholstery cardboard, for example of the laminate planks or sheets paperboard, containing various types of photocatalytic nanoparticles that make manufactured products of photocatalytic active. Each layer and stage of technology can be chosen from other, for example, depending on the cost of the laminate planks and upholstery cardboard (product low/high cost) and equipment supplied by the manufacturers of the laminate.

Laminated boards and upholstery are usually made of a cardboard base fibrous cardboard (namely cardboard high density, KVP) and three or more sheets: decorative sheet, the surface sheet of cellulose on top and one or more sheets of substrates placed on the opposite side of the base fibrous cardboard to cardboard and trim protect it from warping. Between fibrous paperboard and a decorative sheet is often placed on other leaves. The decor sheet can be monochromatic or patterned to look, for example, as wood, cork, stone, tiles or a more abstract pattern. Surface sheet typically contains the wear-resistant particles, as a rule, ODA�divided by the number of aluminum oxide (Al 2O3), giving the best laminate abrasion resistance. Furthermore, the surface sheet impregnated with a polymer resin, usually a melamine-formaldehyde resin. Other leaves, often sheets of paper, also impregnated with resin. The decor sheet is usually impregnated with melamine-formaldehyde resin, whereas the phenol-formaldehyde resin is often used in the core of the laminate. Laminated Board or upholstery cardboard put together by applying heat and pressure, causing the resin to polymerize in the reaction of termootdelenija. After laminating polymerized surface sheet and paper decor make up the top layer of laminated Board or cardboard and, thus, it needs to be optically transparent, starting right from the top surface of the laminate and through the decorative print paper decoration.

In one embodiment of the invention (Fig.2) photocatalytic nanoparticles is sprayed coatings by type of coating wet composition on the wet material (43, 40) on the upper and/or lower surface of paper (10), after the implementation of the first (42) and/or the second (41) impregnation of the paper (10) resin, and wear resistant particles, preferably aluminium oxide. The paper can be dried (44, 45) after each soak. Is preferable that the photocatalytic nanoparticles were deposited on�Le stage of impregnation, but before the drying stage. In one embodiment, the paper (10) in the first stage (46) is moistened with resin and/or impregnated in the resin. This method of spraying the photocatalytic nanoparticles can be integrated in any production line to obtain a paper overlay or decorative paper, as well as in the processing line shown in Fig.1 and described above under US 2009/0208646. Sputtering of photocatalytic nanoparticles, as shown in Fig.1, can be implemented on the production line at any stage, after the stage of hydration (14) of the paper web (10).

A suitable type of spray nozzle for coating by sputtering of photocatalytic nanoparticles is installation with electronic control Autojet Pulsejet B10000jjau.

The preferred deposition rate paper overlay or decorative paper can be >1 m/s, e.g. >2 m/s, preferably >5 m/s, for example >8 m/s, and even more preferably >10 m/s.

In another embodiment, the photocatalytic nanoparticles is applied by coating by spraying type wet on dry, upper and/or lower surface of the paper overlay and/or decorative paper, after the first or second impregnation of the paper in the resin, and wear resistant particles, preferably aluminium oxide. The paper is usually dried by�Le each soak.

In a preferred embodiment of the invention the photocatalytic nanoparticles may be mixed with a wetting agent and/or alcohol, before the step of coating by spraying, to improve the wetting ability of the impregnating liquid on the surface of the surface and/or decorative sheet.

In another embodiment of the invention the photocatalytic nanoparticles can be applied a method that combines the coating material spraying type wet on wet and wet on dry.

In another embodiment of the invention photocatalytic nanoparticles applied in the form of a polymer mixture at the stage of impregnation of the resin.

In another embodiment of the invention photocatalytic nanoparticles injected in the surface sheet, for example, in the decorative sheet of paper before impregnation in the polymeric resin. Thus, the use of said photocatalytic surface sheet or decorative paper for photocatalytic layer can be easily applied existing methods of application used for the manufacture of the laminate planks or upholstery cardboard, i.e. the permeation photocatalytic surface sheet or decorative paper in a polymeric resin, followed by manufacturing laminated boards at the stage of laminating by hot pressing./p>

Mentioned stage of impregnation of the photocatalytic nanoparticles and drying/curing can be integrated into your current production line directly before impregnation mentioned surface sheet or decorative paper in a polymeric resin, or mentioned photocatalytic impregnated and cured surface sheet or decorative paper can be stored until they are needed.

Appropriate type of nanoparticles for use in covering the liquid composition is titanium dioxide. Nanoparticles of titanium dioxide can according to certain aspects of the present invention further contain other elements. In some embodiments, embodiments such elements can be entered in the said nanoparticles with the aim of improving the photocatalytic activity of mentioned nanoparticles by changing the range of absorption mentioned photocatalytic nanoparticles of titanium dioxide.

The solvent mentioned covering the liquid composition may contain water, methanol, ethanol or isopropanol, or combinations thereof, or may even be water.

The concentration mentioned photocatalytic nanoparticles in manufactured Board or cardboard can be increased by repeating the above-mentioned step of applying the coating several times.

The preferred embodiment for�scientists impregnated paper assumes the presence of discrete photocatalytic nanoparticles on and in said surface sheet or sheets of decorative paper. The said nanoparticles or clusters of nanoparticles in many applications according to the present invention can have virtually the same size as the effective size of the particles in said impregnation fluid composition.

The obtained impregnated paper containing the photocatalytic nanoparticles can be used in all known technologies, to obtain a laminated building panel, preferably a floor boards, wall panels and lids kitchen tables.

Photocatalytic composition, dispersed in the polymeric resin may preferably comprise photocatalytic active nanoparticles of titanium dioxide (TiO2). In a preferred embodiment, the said nanoparticles contain crystalline forms of titanium dioxide in form of anatase and/or rutile and/or brookite, or combinations thereof. In addition, the photocatalytic active nanoparticles according to the present invention are present in the composition predominantly in their final crystalline form, i.e. to convert the mentioned particles in their active form does not require any heat treatment. It is preferred that the average primary particle size or crystallite size of the nanoparticles, such as titanium dioxide, expressed as equivalent spherical diameter, could be less than 30 nm, n�example less than 20 nm, and preferably less than 15 nm, e.g., less than 10 nm. The average primary particle size or crystallite size can be measured by x-ray diffraction using Scherer formula. Further, it is preferable that the distribution of mentioned nanoparticles size was relatively narrow.

Photocatalytic composition, dispersed in the polymeric resin, regardless of whether administered it in the form of powder, paste or suspension, can be added to the polymer resin at any given time. In one embodiment of the invention photocatalytic composition diffuses through the polymeric resin immediately before the impregnation of the surface of the leaves or sheets of decorative paper polymer resin. Referred to the scattering process can be accelerated by using a specially designed machine or device.

EXAMPLES

Having described the basic aspects of the invention, we turn now to the examples given to illustrate specific embodiments.

Example 1 - applying wet on wet

This example illustrates the creation of a polymer surface containing embedded nanoparticles. Particles were through the spray system applied in the form of dispersion on svejepoimannuyu polymer surface, when it was still wet.

As raw material was used followed by�th variance. A 30% dispersion of TiO2in water containing agglomerates of particles of size not more than 80 nm, as determined using the method of Particle Matriz Nanotrack NPA 252. The mother liquor was then sprayed on svejepoimannuyu melamine paper immediately after the paper was impregnated on bumagodel clip. The dispersion was coated on paper using a system of automatic jet spray, to discharge fluid into the nozzle through a tank of low pressure, with a pressure of 1.8 bar. The nozzle was a jets for pulsating jets, with tips for pneumatic spraying (at atmospheric pressure 1.5 bar) placed at 35 cm above svezhepriobretennoy of paper directly in front of the first oven.

Automatic jet spray was configured to feed the paper fluid in an amount of 30 ml/m2; the paper was then dried in two consecutive heating furnaces. This led to the release of melamine paper with embedded agglomerates TiO2very small size, penetrating approximately through the first few hundred microns of melamine paper.

Example 2 - applying wet to dry

This example illustrates the creation of a polymer surface containing embedded nanoparticles. The particles were plotted in the form of a dispersion using a spray system n� polymer surface, after it was dried in a heating furnace.

In this experiment there was used the same system spraying liquid as that in example 1.

Example 3 - application of wet raw material

This example illustrates the preparation of polymer surface containing embedded nanoparticles.

Particles were through the spray system applied in the form of dispersion on rough paper before the paper was impregnated with melamine.

The test results

The table below shows the results of various methods of applying the photocatalytic particles:

Test I: applying a photocatalytic top layer by soaking paper overlay using a spray-type wet deposition of the composition on a wet material.

Test II: applying a photocatalytic top layer by soaking paper overlay using a spray-type wet deposition of the composition on a dry material.

Test III: applying a photocatalytic top layer by soaking the paper overlay on the type of wet deposition of the composition on a dry material by spraying on rough paper overlay, before impregnation in melamine.

Evaluation of the appearance, stability and distribution:

ProcessingAppearance (a)Stability (b)Distribution (C)
Colorless - standard11-
Test I: - Wet111
Test II: Wet to dry213
Test III: Wet to dry442

(a) appearance on a scale of 1-5, judging by the transparency and turbidity, where 1 is no visible differences from the laminate in which there is no embedded particles, and 5 - very muddy.

(b) the stability of the process was evaluated on a scale of 1-5, judging by the durability and flexibility of the material, where 1 is no visible differences from the laminate in which there is no embedded particles, and 5 is very sensitive to changes in the process.

(c) Distribution of embedded particles was evaluated on a scale of 1-5, where 1 is completely uniform distribution of the photocatalytic nanoparticles.

1. A method of manufacturing a sheet containing potoka�litijska nanoparticles, which includes stages:
- soak (41, 42) of the sheet (10) of polymeric resin, preferably containing wear-resistant particles;
- spraying (43, 40) on the sheet (10), svezhepriobretenny polymer resin in the uncured and wet impregnation fluid composition comprising dispersed photocatalytic nanoparticles;
- drying and/or at least partial curing (44, 45) of the said impregnated sheet comprising a polymeric resin and impregnating liquid.

2. A method according to claim 1, wherein the sheet comprises cellulose fibers.

3. A method according to claim 1 or 2, in which the impregnating liquid composition contains a solvent containing water.

4. A method according to claim 1 or 2, comprising a stage between the stages of soaking and spraying, in which a polymer resin is partially dried.

5. The method of producing a laminated Board or cardboard (1) by compositing the sheet obtained according to any one of the preceding claims, at the core, preferably fibrous cardboard, high density, and the application of heat and pressure.

6. A method according to claim 5, in which the Board is a floor Board.

7. The method of producing a fiberboard plate, containing photocatalytic nanoparticles, which includes stages:
1) scattering of dry mixture containing the wood fibers, termomaterialy resin such as polymer resin, preferably melamine�formaldehyde resin, and wear-resistant particles onto the core;
2) applying organic solvent to the mixture on the core;
3) spray impregnation fluid composition comprising dispersed photocatalytic nanoparticles, preferably dispersed in water; and
4) application of heat and pressure.

8. A method according to claim 7 in which the organic solvent contains a ketone, such as acetone and methyl ethyl ketone and/or alcohol, such as ethanol, propanol and methanol, and/or acetate such as butyl acetate, ethyl acetate.

9. A method according to claim 7 in which the organic solvent is an ethanol.

10. A method according to any one of claims.7 to 9, comprising the step of applying, preferably before stage 2, the liquid from the wetting agent to the mixture, preferably in the form of water containing 1 wt.% BYK-348 from the company BYK Chemie.

11. A method according to claim 10, comprising the step of applying the liquid with the shaft, together with an organic solvent.

12. A method according to any one of claims.7 to 9, comprising the step of applying together impregnating liquid and the organic solvent.

13. A method according to any one of claims.7-9, in which the mentioned photocatalytic nanoparticles have a degree of crystallinity of at least 50%.

14. A method according to any one of claims.7-9, in which the said nanoparticles have a primary particle size <50 nm, e.g. <30 nm, preferably a primary particle size comp�things like < 20 nm, for example <10 nm.

15. A method according to any one of claims.7-9, in which the concentration mentioned impregnating liquids with photocatalytic nanoparticles is >1 wt.%, for example >5 wt.%, the preferred concentration of mentioned nanoparticles is >10 wt.%, for example >15 wt.%, and even more preferred the concentration of mentioned nanoparticles is >20 wt.%, for example >25 wt.%.

16. A method according to any one of claims.7-9, in which the quantity of impregnating liquid composition per square meter of applied surface is in the range 1-200 ml/m2for example , in the range 5-100 ml/m2and preferably in the range 10-50 ml/m2, for example 20-40 ml/m2.

17. Upholstery cardboard, obtained by the method according to any one of the preceding claims, in which the mentioned photocatalytic nanoparticles embedded uniformly in the upper layer of the cardboard.

18. Upholstery cardboard according to claim 17, in which the mentioned photocatalytic nanoparticles embedded uniformly in a finite upholstery cardboard on the thickness of >0.1 µm; >1 μm; >10 µm; >50 μm; >100 μm; >500 μm; >1000 microns.



 

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16 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: proposed method comprises the steps that follow. Making the multiple first layers (1a, 1b, 1c, 1d) of impregnated cellulose fibres. Making the multiple second layers (2a, 2b, 2c, 2d) of impregnated cellulose fibres. Making the wood chipboard (3). Making the set (4) of layers with top facing layer (4a) including first layers (1a, 1b, 1c. 1d) of cellulose fibres with central board (4b) abutting on top facing layer (4a) by its top surface (4b.1) including chipboard (3) and bottom facing layer (4c) abutting on bottom surface (4b.2) of central boars (4b) including second layers (2a, 2b, 2c, 2d) of cellulose fibres. Note here that top facing layer (4a) and/or bottom facing layer (4c) is made so that after escaping out of hot press (5) it features thickness of at least 2 mm. Displacement of said set (4) of layer in hot press (5). Pressing of said set (4) of layer in hot press (5) at increased pressing force and temperature for making multilayer board (6) and discharging said board (6) from hot press (5).

EFFECT: lower products costs.

18 cl, 2 dwg

FIELD: decorative art.

SUBSTANCE: for simplification of the method the relief is produced by sticking of deceptive material over the contour of the applied image, and the required amount of plastic compound is applied by small sections uniformly on the image surface sections that a free of deceptive material.

EFFECT: simplified procedure.

1 cl

FIELD: construction industry; methods of production of decorative tiles with a grainy coating.

SUBSTANCE: the invention is pertaining to the field of construction industry, in particular, to the method of production of decorative tiles with a grainy coating to increase their water-resistance. The method provides, that the base before application of an adhesive underlayer is subjected to a water-repelling process and in the capacity of an adhesive underlayer use a 8-I2 % water solution of sodium salt of carboxymethylcellulose.

EFFECT: the invention ensures production of decorative tiles with a grainy coating.

4 cl

FIELD: decorative-lining sheet material for producing of material simulating natural or artificial stone or various kinds of wood.

SUBSTANCE: method involves providing thermal vacuum forming of thermoplastic sheets having thickness of 0.5-8 mm and comprising on its face side decorative-protective polymeric film.

EFFECT: wider range of decorative and lining materials and increased efficiency in simulating structure of natural or artificial materials.

2 cl, 1 dwg

FIELD: ceramic decorations.

SUBSTANCE: method of making ceramic decorative art wall panel comes to the following: tiles are placed on backing secured vertically with tilting of 10-15° successively, starting from lower horizontal row, tiles of which are placed on corresponding limiting step of backing.

EFFECT: improved quality of wall panels.

5 cl, 1 tbl, 4 dwg

FIELD: construction industry; methods of manufacture of the architectural-decorative products.

SUBSTANCE: the invention is pertaining to the method of manufacture of the architectural-decorative products. To increase the quality the products the method provides for laying of the color mixtures in the mold for casting of the product is conducted with usage of a vibration process on the vibration exciter.

EFFECT: the invention allows to improve quality of manufacture of the architectural-decorative products.

6 cl, 3 dwg

FIELD: papermaking.

SUBSTANCE: pre-impregnate is manufactured by impregnation of crude paper with thermosetting formaldehyde-free resin until content thereof 10 to 70%. Residual moisture content in pre-impregnate is 2-3%. Resin contains: at least one radical-polymerization polymer with less than 5% of α,β-ethylenically unsaturated mono- or dicarboxylic acid; at least one radical-polymerization polymer containing more than 5% of α,β-ethylenically unsaturated mono- or dicarboxylic acid; and at least one alkanolamine with at least two hydroxyl groups; or resin contains at least one radical-polymerization polymer with 5-100%, particularly 5-50%, or more particularly 10-40% of α,β-ethylenically unsaturated mono- or dicarboxylic acid and at least one above alkanolamine.

EFFECT: improved quality of surface, printing properties, delamination resistance, and varnishing capacity.

16 cl, 3 dwg, 2 tbl, 2 ex

FIELD: construction industry; domestic appliances; electrical engineering; motor-car industry; methods of production and application of the laminated composite materials with the different layers of a resin.

SUBSTANCE: the invention is pertaining to the method of production and application of the laminated composite material with the different layers of a resin and may used in construction industry, domestic appliances, electrical engineering, motor-car industry. The laminated composite material contains the carrier made out of the thermoplastic polymeric compound, the located on it intermediate layer also made out of the thermoplastic polymeric compound and the applied on the intermediate layer of the thermoreactive layer. Between the carrier and the intermediate layer there is a layer of the resin (a) with the rate of consolidation of at least 20 %. Between the intermediate layer and the thermoreactive layer there is the layer of the resin (c) with the rate of consolidation of at least 60 %. The materials of the layers are laid as the flat sheets and at the temperature of 150-300° C link to the carrier. The material possess the high degree of stiffness and impact toughness, the high quality of the surface, the fast and easy solidification.

EFFECT: the invention ensures the high degree of stiffness and impact toughness, the high quality of the surface, the fast and easy solidification.

13 cl, 1 ex

FIELD: construction materials industry; production of the moldable decorative laminated material.

SUBSTANCE: the invention is pertaining to the moldable complicated decorative laminated material, which contains the polymer impregnated decorative layer made out of the bilateral expansible decorative paper and the core polymer impregnated layer formed out of the bilateral extendable kraft-paper. The laminated material is used for production of the different products requiring the molding concerning the surface of the complicated form, in particular, to the packet made out of the laminated material. The board made out of the laminated material has the moldable base in addition to the decorative layer. The method of manufacture of the moldable decorative laminated material includes the following operations: treatment of the decorating paper, its impregnation, the treatment and impregnation of the kraft-paper, the layer by layer stacking and joining of the layers of the decorative and kraft-paper under pressure with their preliminary impregnation with the phenol-formaldehyde polymeric compound. The technical result of the invention is improvement of the surface properties of the decorative laminated material.

EFFECT: the invention ensures improvement of the surface properties of the decorative laminated material.

37 cl, 8 dwg

FIELD: construction.

SUBSTANCE: method comprises applying a lining material on the surface of the panel, gluing the lining material to the surface of the panel, pressing, and conditioning. Before applying the lining material, the panel is dampened and treated with steam. Pressing is performed at a temperature 127-132°C and at a pressure of 170 bar for 4-6 min.

EFFECT: enhanced efficiency.

3 cl

FIELD: manufacture of decorative panels.

SUBSTANCE: prior to delivery of PVC blank to working area, its surface is subjected to loosening for increase of surface activity and for enhancing adhesion by applying solution of primer; use is made in working area of contra-shaft for holding-down the blank to drive guide transporting wheels and for rolling-on the facing material and connecting it with front surface; used as hold-down device is hold-down shaft with its own program-controlled shaft which is made from soft elastic material for copying the configuration of front and side surfaces of blank at the moment of connection with facing material at simultaneous stretching of it for avoidance of folds; its longitudinal axis is located at angle of from 0 to 90° relative to delivery of blank.

EFFECT: improved quality of facing; simplified construction of device; increased productivity of process.

5 cl, 3 dwg

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