RU200070U1 - RESIN COATED OUTER LAYER AND PLYWOOD PRODUCT CONTAINING THE LAYER SPECIFIED - Google Patents

Abstract

A coated plywood article (200) comprising a plywood (90) coated with an outer layer (100). The outer layer (100) contains a layer (10) of the carrier coated with a resin coating (20), and a barcode (QR1) located between the layer (10) of the carrier and the resin coating (20), and the barcode (QR1) contains a plurality darker elements (E1) and a lot of lighter elements (E2), with darker elements (E1) having the first average reflection coefficient (R1), lighter elements (E2) having a second average reflection coefficient (R2), the relative difference (( R2-R1) / R2) between the first average reflection coefficient (R1) and the second average reflection coefficient (R2) is greater than or equal to 40%, and the values of the first and second reflection coefficients (R1, R2) of the elements (E1, E2) are determined for the combination barcode (QR1) and resin layer (20) in white incident light. 5 ill.

Description

FIELD OF TECHNOLOGY

This invention relates to a resin coated outer layer intended to be adhered to a hard surface. In particular, the present invention relates to a plywood product that contains a resin coated outer layer.

LEVEL OF TECHNOLOGY

Resin coated plywood products are known to resist wear and tear and moisture. The resin-coated plywood product can be used, for example, as a recyclable concrete mold.

From US 20020182429, a coated plywood article is known which is a wear-resistant decorative sheet comprising a carrier layer coated with a resin coating and a pattern located between the carrier layer and the resin coating layer. Such a sheet serves a purely decorative function.

ESSENCE OF THE USEFUL MODEL

The purpose of the utility model is to obtain a resin coated outer layer. The aim is also to obtain a plywood product containing the specified outer layer.

In one aspect, there is provided an outer layer (100) comprising a carrier layer (10) coated with a resin coating (20) and a barcode (QR1) positioned between the carrier layer (10) and the resin coating (20), wherein the barcode (QR1) contains many darker elements (E1) and many lighter elements (E2), with darker elements (E1) having a first average reflectance (R1), lighter elements (E2) having a second average reflectance (R2) , the relative difference ((R2-R1) / R2) between the first average reflection coefficient (R1) and the second average reflection coefficient (R2) is greater than or equal to 40%, and the values of the first and second reflection coefficients (R1, R2) of elements (E1, E2) are defined for a combination of a bar code (QR1) and a resin coating (20) in incident white light.

According to an aspect of the invention, there is provided a plywood product comprising said outer layer.

The barcode can be a two-dimensional barcode (2D barcode), such as a QR code according to ISO / IEC 18004. The barcode can be a one-dimensional barcode (1D barcode), i.e. a linear barcode -the code. The resin-coated outer layer can be configured to function as a storage medium, wherein the data can be enclosed in a barcode. The specified data can be encoded in the barcode in the form of darker elements and lighter elements of the barcode. The barcode can be coated with resin. The resin layer can be substantially continuous over the entire surface of the article. The resin layer can effectively protect the data from wear and tear. What's more, data tampering can be difficult or impossible, as the person who tries to change the data will need to remove the entire layer of resin from the surface, make the changes, and apply a new layer of resin to the entire surface area.

The outer layer can be permanently bonded to the article. In particular, the resin coated plywood article may include an outer layer containing a barcode. The data stored in the outer layer can then be read using an optical reader. The data may contain, for example, a website address and / or an identifier. The data can be used, for example, to identify a product and / or to retrieve product related data from a database.

The formation of a barcode under the resin layer maintains the advantageous technical properties of the resin coated outer layer. The barcode can be printed on the paper layer of the resin-coated outer layer so that the barcode does not adversely affect the technical properties of the outer layer. In particular, the barcode can be obtained without adversely affecting the release properties, weather resistance, wear resistance and / or chemical resistance of the outer layer.

BRIEF DESCRIPTION OF DRAWINGS

In the following examples, several options will be described in more detail with reference to the attached drawings, in which:

FIG. 1a shows an example of a barcode formed on a carrier layer in cross-section,

FIG. 1b shows an example of an outer layer that contains a resin coated carrier layer in cross section,

FIG. 2a shows an example of a 2D barcode in top view,

FIG. 2b shows an example of a one-dimensional barcode in top view,

FIG. 2c shows an example of the reflectivity of barcode elements,

FIG. 3 shows an example of the production of a coated plywood product in three dimensions,

FIG. 4 shows an example of reading a barcode from a coated plywood product, and

FIG. 5 shows an example of an outer layer containing a barcode.

DETAILED DESCRIPTION OF THE UTILITY MODEL

As shown in FIG. 1a, the QR1 barcode can be printed on the carrier layer 10 prior to coating the carrier layer 10 with resin. The QR1 barcode can be formed on the media layer 10. For example, the QR1 barcode may be formed on the first main surface SRF1 of the medium layer 10 by printing with INK1 ink. The carrier layer 10 can be, for example, paper.

The QR1 barcode may be formed on the first major surface SRF1 of the carrier layer 10 or on the second major surface SRF2 of the carrier layer 10. The first major surface SRF1 and barcode QR1 can be seen through the resin layer 20. The first major surface SRF1 can be directed towards the optical reader CAM1 during the barcode reading (FIG. 4). The barcode formed on the first major surface SRF1 can be easy to read.

On the other hand, a barcode formed on the second major surface of SRF2 is located under the carrier layer 10 so that the carrier layer can provide additional protection against wear and tampering.

As shown in FIG. 1b, the outer layer 100 may comprise a carrier layer 10 coated with a resin layer 20. The QR1 barcode can be located on the carrier layer under the resin layer 20.

The first major surface SRF1 of the carrier layer 10 may be coated with the first resin layer 20. The resin layer 20 may be substantially transparent, thus allowing the QR1 barcode to be optically read through the resin layer 20. The QR1 barcode can also be visually detected through the resin layer. The resin can contain, for example, a phenolic resin. The second major surface SRF2 of the carrier layer 10 may be coated with the second resin layer 30. The carrier layer 10 can be impregnated with resin. The carrier layer 10 can be saturated with resin.

The QR1 barcode can be a two-dimensional barcode. A two-dimensional barcode can also be called, for example, a matrix code. The two-dimensional barcode can be generated, for example, according to the ISO / IEC 18004 standard. The two-dimensional barcode can be, for example, a QR code.

The QR1 barcode can be a one-dimensional barcode. A one-dimensional barcode can also be called, for example, a linear barcode. A one-dimensional barcode can be defined, for example, in accordance with the EAN-13 standard.

A two-dimensional barcode can contain more data per unit area than a one-dimensional barcode. In particular, a QR code can provide significant freedom in choosing the information content of the data stored in the code.

The QR1 barcode can be read through the resin layer. The barcode can be machine readable. The QR1 barcode image can be captured by the camera, and the data stored in the barcode can be determined by analyzing the captured QR1 barcode image. Data can be decoded from the captured image.

As shown in FIG. 2a and 2b, the QR1 barcode contains a plurality of first elements E1 and a plurality of second elements E2. The first E1 elements may have a first color, and the second E2 elements may have a different second color. The first E1 elements may have a first darker color, and the second E2 elements may have a second lighter color. The QR1 barcode may contain many darker E1 elements and many lighter E2 elements.

The QR1 barcode can be printed with ink on unbleached paper. Unbleached paper can be brown in color, for example. Printing ink can be white or gray, for example. The color of the printed ink layer can be selected so that areas covered with print ink can serve as lighter barcode features, while areas not covered with print ink can serve as darker barcode features. Such an embodiment can provide low manufacturing costs.

The thickness and / or specific gravity of the printed ink layer can be selected such that the barcode can be read through the resin layer.

w1 can denote the minimum width of the elements E1, E2. The minimum width w1 can be chosen so as to facilitate error-free reading of the code, for example in a situation where the color of the printed elements E2 is not uniform. The printed lighter elements E2 may contain, for example, darker areas due to defects caused by printing and / or due to defects obtained when the outer layer is attached to the plywood 90. The minimum element width w1 can be, for example, from 1, 0mm to 5.0mm. Width w1 may mean the minimum size of elements E1, E2 in the SX direction.

The minimum height of the elements E1, E2 of the two-dimensional barcode QR1 can be substantially equal to the size w1. The minimum height of elements E1, E2 of a two-dimensional QR1 barcode can be equal to the size w1. The height of the elements E1, E2 can mean the size of the elements E1, E2 in the SY direction.

The QR1 barcode can be generated by printing so that the barcode can be read through the resin layer with a mobile phone camera when the resin coated plywood product is illuminated with white light.

The color, thickness and / or specific gravity of the printed ink layer can be selected such that the contrast between adjacent elements can be, for example, greater than or equal to 40%.

As shown in FIG. 2c, the darker elements E1 of the QR1 barcode have a lower R reflectance, and the lighter elements E2 have a higher R reflectance. Reflectance R means the ratio of the reflected light intensity to the incident light intensity. The reflectance R can be measured for incident white light. The term "incident white light" can mean light that has a blackbody spectrum at 6000 K at wavelengths from 400 nm to 760 nm.

The reflection coefficient R can be defined as a function of R (x, y) of coordinates (x, y). The reflectance R (x, y) may indicate the reflectance of the combination of the resin layer 20 and the QR1 barcode located under the resin layer 20 at a spatial position (x, y). The x coordinate can indicate the position in the SX direction and the y coordinate can indicate the position in the SY direction. The reflection coefficient R can range from 0% to 100%. E2 elements have a lighter CLR2 color, and E1 elements have a darker CLR1 color compared to the lighter CLR2 color (Fig. 5). The average reflection coefficient R1 of E1 elements is significantly higher than the average reflection coefficient R2 of E2 elements.

R1 may represent the average spatial reflection coefficient R (x, y) of the darker E1 elements of the QR1 barcode. R2 may represent the average spatial reflection coefficient R (x, y) of the lighter elements E2 of the QR1 barcode.

The outer layer 100 may include paper 10 coated with resin coating 20 and a QR1 barcode located between the paper 10 and resin coating 20, wherein the QR1 barcode contains many darker elements E1 and many lighter elements E2, with darker elements E1 have the first average reflectance R1, the lighter elements E2 have the second average reflectance R2, the relative difference (R2-R1) / R2 between the first average reflectance R1 and the second average reflectance R2 is greater than or equal to 40%, and the values of the first and the second coefficient R1, R2 of the reflections of the elements E1, E2 are determined for the combination of the QR1 barcode and the resin layer 20 in white incident light.

FIG. 2c shows an example of the reflection coefficient R (x, y) as a function of the horizontal x coordinate along the line LIN1. Line LIN1 can be located, for example, at the y = yLIN1 coordinate. The reflection coefficient R (x, y) can be measured, for example, along the LIN1 line. The R (x, y) reflection coefficient can be measured as a function of the x coordinate along the LIN1 line. The center of the element E2 can be, for example, at the point (x1, yLIN1). The center of the element E1 can be, for example, at the point (x2, yLIN1). The QR1 barcode can have a total width of wQR1.

The R2-R1 difference can be higher than the preset value to ensure that QR1 barcode is read without error. The difference R2-R1 can be normalized, for example, by dividing the difference R2-R1 by the value of the average reflectance R2 of the lighter elements E2. The relative difference between the first average reflectance R1 and the second average reflectance R2 may mean the ratio (R2-R1) / R2.

The QR1 barcode can be read, for example, by capturing an image of the QR1 barcode with a mobile phone camera and analyzing the pixels of the captured image. The QR1 barcode can be read, for example, in the case where the QR1 barcode is illuminated with a substantially white light. The camera can automatically adjust operating parameters based on the measured brightness of the areas within the camera's field of view. The captured image can be processed using an image processing algorithm. The image processing algorithm can change the pixel values of the captured image based on the measured brightness of the areas falling into the captured image.

As shown in FIG. 3, the resin coated outer layer 100 may comprise a carrier layer 10, wherein a first major surface SRF1 of the carrier layer may be coated with a first resin layer 20, and a second major surface SRF2 may be coated with a second resin layer 30. The carrier layer 10 may contain or be composed of cellulosic fibers. The carrier layer 10 may contain or be composed of glass fibers. The carrier layer 10 may comprise or be comprised of a textile layer. Textiles can be woven or non-woven.

The carrier layer 10 is preferably a paper layer. The paper layer can be called, for example, base paper. The base paper can contain cellulosic fibers, or mainly consist of them. The base paper can be, for example, kraft paper or sack paper. The base paper can be bleached or unbleached. Unbleached kraft paper can be brown in color. For example, unbleached kraft paper can be used to create darker barcode elements by printing lighter barcode elements with printable ink. The ink color for printing can be, for example, white or gray.

The base paper has a first major surface SRF1 and a second major surface SRF2. The first major surface SRF1 can remain visible after the outer layer is attached to the plywood.

The specific gravity of the resin applied to the first major surface of the base paper may, for example, be greater than or equal to 10 g / m ² , preferably more than 20 g / m ² . The specific gravity of the resin applied to the first major surface of the base paper may, for example, be from 10 g / m ² to 200 g / m ² .

The resin can be a thermosetting resin and / or a thermoplastic resin. The resin can contain, for example, a phenolic resin. The resin may optionally contain wax, for example, to improve anti-adhesive properties. The relative proportion of wax can be, for example, from 1% to 50%.

The resin layer 20 applied to the first major surface can, for example, effectively protect the barcode from wear and / or moisture.

The resin layer 20 can effectively prevent the generation of a counterfeit barcode after the resin layer 20 has been applied to the paper 10. It may be difficult or impossible to change the QR1 barcode after it has been coated with the resin layer 20. The resin layer 20 can be substantially continuous over the entire (flat) surface of the resin coated plywood article 200.

The outer layer 100 can be attached to the plywood member 90. The outer layer 100 can be attached to the plywood 90, for example, by pressing the outer layer onto the plywood 90 at an elevated temperature. Said elevated temperature may be, for example, from 110 ° C to 190 ° C, preferably from 120 ° C to 150 ° C, and preferably from 130 ° C to 145 ° C.

The outer layer resin can be partially cured before the outer layer 100 is attached to the substrate 90.

The resin of the outer layer may be partially uncured before the outer layer 100 is attached to the substrate 90.

The specific gravity of the resin applied to the second major surface SFR2 of the base paper may, for example, be greater than or equal to 10 g / m ² , preferably more than 20 g / m ² . The specific gravity of the resin applied to the second major surface SFR2 of the base paper may be, for example, 10 g / m ² to 200 g / m ² . A layer of resin applied to the second major surface of the base paper can bond the outer layer to the plywood.

Plywood 90 may comprise multiple layers 91, 92, 93, 94, 95 of wood bonded together. Plywood 90 may contain, for example, multiple layers of softwood. Plywood can contain, for example, multiple layers of birch wood. The layers of wood in plywood can be bonded together, for example with resin. Plywood can contain, for example, three or more layers of wood. The thickness of each layer of wood can be, for example, from 0.5 mm to 4.0 mm. The total thickness D200 of the plywood element after both sides have been coated with the outer resin layer may for example be from 2 mm to 60 mm, preferably from 4 mm to 30 mm. The length L200 of the article 200 can be, for example, 0.2 m to 20 m and the width W200 of the article can be, for example, 0.2 m to 4 m.

Plywood 90 can contain three or more layers of wood. Plywood can contain, for example, five or more layers of wood. Plywood can contain, for example, seven or more layers of wood. Plywood can have different fiber directions in the layers. For example, the first layer 91 can be attached to the second layer 92 such that the orientation of the wood fibers of the second layer 92 is substantially perpendicular to the orientation of the wood fibers of the first layer 91. The second layer 92 can be attached to the first layer 91 and to the third layer 93 such that the orientation of the wood fibers of the second layer 92 is substantially perpendicular to the orientation of the wood fibers of the layers 91, 93.

The specific gravity of the base paper may be, for example, from 15 g / m ² to 300 g / m ² , preferably from 20 g / m ² to 250 g / m ² and more preferably from 30 g / m ² to 100 g / m 2. ² . Specific gravity means mass per unit area.

The specific gravity of the base paper may be, for example, substantially equal to 40 g / m ² .

The basis weight of the base paper may, for example, be substantially equal to 80 g / m ² .

In an embodiment, the basis weight of the outer layer is 25% to 55% based on the specific gravity of the outer layer.

In an embodiment, the basis weight of the outer layer is between 30% and 45% of the specific gravity of the outer layer.

In an embodiment, the basis weight of the outer layer is between 25% and 55% of the outer layer, with the outer layer having a specific gravity of 60 g / m ² to 400 g / m ² .

In an embodiment, the basis weight of the outer layer is from 30% to 45% of the specific gravity of the outer layer, the specific gravity of the outer layer being in the range from 60 g / m ² to 400 g / m ² .

In an embodiment, the basis weight of the outer layer is 25% to 55% of the outer layer, the outer layer has a specific gravity of 75 g / m ² to 300 g / m ² .

In an embodiment, the basis weight of the outer layer is from 30% to 45% of the specific gravity of the outer layer, the specific gravity of the outer layer being in the range from 75 g / m ² to 300 g / m ² .

In an embodiment, the basis weight of the outer layer is between 25% and 55% of the outer layer, the outer layer has a specific gravity in the range of 100 g / m ² to 250 g / m ² .

In the most preferred embodiment, the basis weight of the outer layer is from 30% to 45% of the outer layer, the specific gravity of the outer layer being in the range from 100 g / m ² to 250 g / m ² .

A second outer ply 102 may be attached to the other side of plywood 90. The resin coated plywood article 200 may comprise a plywood member 90, a first outer ply 100 attached to a first side of plywood 90, and a second outer ply 102 attached to a second side of plywood 90. The second outer layer 102 may comprise a carrier layer 10 coated with resin layers 20, 30.

As shown in FIG. 4, the barcode of the outer layer 100 can be read with an optical reader CAM1. The QR1 barcode can be illuminated by the incident light LB0 at the moment the QR1 barcode is read. The incident light LB0 can be, for example, white light from a lamp, flash lamp or sun. When illuminated with LB0 light, QR1 barcode can reflect LB1 light. The CAM1 reader may comprise a camera that may be configured to capture an image of a barcode, for example by focusing the reflected light LB1 on an image sensor. The CAM1 reader may be configured to decode DATA1 data from a captured QR1 barcode image.

The resin-coated outer layer 100 can serve as a storage medium. The DATA1 data stored in the QR1 barcode can be read and used, for example, for product tracking, item identification and / or document management. For example, DATA1 data stored in a barcode can contain a uniform resource locator (URL, Internet address). The data stored in the barcode can contain an identifier. The URL and / or identifier may optionally be converted to, for example, an alphanumeric string. The barcode of a resin coated product can be read, and the URI can be used, for example, to obtain additional DATA2 product information, product manuals and / or product certification.

The barcode of the resin coated article can be read, and the identifier can be used, for example, to retrieve additional DATA2 information from the DBASE1 database. The identifier can be used, for example, to obtain additional information about the product 200, the instruction manual for the product 200, the production series of the product 200, the date of manufacture of the product 200, the owner of the product 200, and / or a certificate for the product 200.

As shown in FIG. 5, the background color of the media layer 10 can be used as the CLR1 color for the E1 barcode elements. In particular, resin-impregnated kraft paper can have, for example, a dark brown color, which can be used as the CLR1 color for the darker E1 elements of the QR1 barcode. The lighter E2 elements can be printed with inks that have the lighter CLR2 color.

The QR1 barcode may optionally be surrounded by a B1 border to facilitate reading the QR1 code. The width wB1 of the border can be, for example, greater than or equal to 50% of the width w1 of the elements E1, E2. The width wB1 of the border can be, for example, from 50% to 1000% of the width w1 of the elements E1, E2.

The barcode can also be printed with the first ink and other second ink. The first ink may be darker and the second ink may be lighter. Such an embodiment can provide high contrast, however, at a higher cost.

In an embodiment, the barcode can be printed with fluorescent ink. Fluorescent ink can be largely invisible when illuminated with white light that does not contain ultraviolet light. Fluorescent ink can emit visible fluorescent light when illuminated with ultraviolet light.

SX, SY and SZ can denote orthogonal directions. The QR1 barcode can be located in the SX and SY directions. The first major surface of the carrier layer 10 may be, for example, in a plane defined by directions SX and SY.

The resin coated plywood article 90 can be used, for example, as a reusable concrete mold. The resin coated plywood article 90 can be used, for example, in the skin of a vehicle interior. The vehicle can be, for example, a van or a truck. The resin coated plywood article 90 can be used, for example, as a vehicle floor. The resin coated plywood article 90 can be used, for example, as a scaffolding site.

The resin coated plywood product can have a predominantly smooth outer surface or a textured outer surface. The outer surface may have a raised surface structure, for example, to reduce the risk of slipping in situations where coated plywood is used as a walking platform. The minimum element width w1 may, for example, be greater than or equal to the width of the raised portions of the embossed surface structure of the resin-coated article to facilitate error-free reading of the QR1 barcode.

The outer layer 100 can be substantially permanently attached to the solid substrate. The substrate can be wood based substrate. The substrate can be, for example, plywood 90, as described above. The substrate can be, for example, particle board, wafer board or oriented strand board.

The outer layer 100 may contain a phenolic resin, for example, to provide sufficient weather resistance and / or mechanical properties at a low cost. Alternatively, the outer layer 100 may contain, for example, an amine resin.

Printing a barcode on unbleached (brown) paper can be environmentally friendly. Unbleached paper can have high tear strength. The color of unbleached paper can remain substantially unchanged by exposure to sunlight.

Alternatively, the carrier layer 10 can also be, for example, bleached paper. The carrier layer 10 can be, for example, predominantly white paper. The QR1 barcode can be applied to the substrate layer 10, for example by printing. The outer layer 100 may comprise a resin coated carrier layer 10. Plywood 90 can then be coated with an outer layer 100.

In an embodiment, substantially the entire major surface SRF1 and / or SRF2 of the carrier layer 10 may be dyed prior to forming the QR1 barcode on the carrier layer 10. The carrier layer 10 can be colored with pigment and / or dye prior to printing the QR1 barcode on the carrier layer 10. The color of the painted surface can be gray, for example. The color of the painted surface may differ from white and brown. The dyed substrate layer 10 can be coated with resin after the QR1 barcode is printed on the substrate layer 10. The outer layer 100 may comprise a colored carrier layer 10 coated with a phenolic resin. The outer layer 100 may comprise a colored carrier layer 10 coated with an amine resin. The resin may contain pigment, or the resin may be substantially unpainted. The resin can be substantially colorless.

In an embodiment, the QR1 barcode may be formed directly on the surface of the plywood 90. The QR1 barcode may be formed directly on the wood surface of the plywood 90, for example by printing. The plywood 90, together with a QR1 barcode formed on the surface of the plywood 90, may then be coated with an outer layer 100. The outer layer 100 may comprise a resin coated carrier layer 10. The resin can, for example, contain a phenolic resin. The outer layer 100 can be substantially transparent or light-transmitting to allow the QR1 barcode to be read through the outer layer 100 after the outer layer 100 has been applied to the plywood 90.

In the case where the QR1 barcode is read through the outer layer 100, the relative difference (R2-R1) / R2 between the values of the average reflection coefficients R1 and R2 may be greater than or equal to 40%, for example.

In an embodiment, a QR1 barcode or a mirror image of a QR1 barcode may be formed on the surface of the outer layer 100, for example, by printing. The printed surface of the outer layer 100 may then be attached to the plywood 90 such that the QR1 barcode is protected by the outer layer 100. The outer layer 100 may comprise a resin coated carrier layer 10. The resin can, for example, contain a phenolic resin. The outer layer 100 can be substantially transparent or light-transmitting to allow the QR1 barcode to be read through the outer layer 100 after the outer layer 100 has been applied to the plywood 90.

In an embodiment, the barcode can be formed directly on the surface of the plywood. The barcode can be generated directly on the wood surface of the plywood, for example by printing. The plywood, together with the barcode formed on the surface of the plywood, can then be coated with a layer of thermoplastic material. The layer of thermoplastic material may be substantially transparent or light-transmitting to allow the barcode to be read through the outer layer after the outer layer has been applied to the plywood.

In an embodiment, a barcode or a mirror image of a barcode may be formed on the surface of the thermoplastic material layer, for example, by printing. The surface of the printed thermoplastic material layer can then be bonded to the plywood so that the barcode is protected by the material layer. The layer of material can be substantially transparent or light-transmitting to allow the barcode to be read through the layer of material after the layer of material is applied to the plywood.

In an embodiment, an adhesive label containing a barcode may be attached to the plywood. The adhesive label and plywood can then be coated with an outer layer. The adhesive label and plywood can then be coated with a layer of thermoplastic material.

In an embodiment, a transparent or light-transmitting adhesive label containing a mirror image of a barcode may be attached to an outer layer or to a layer of thermoplastic material. The outer layer or thermoplastic layer can then be attached to the plywood so that the label is sandwiched between the plywood and the cover layer, whereby the barcode can be read through the cover layer and through the label.

For a person skilled in the art it will be clear that various modifications and variations can be created according to this invention. The graphic materials are schematic. The specific embodiments described above with reference to the accompanying drawings are for illustration only and are not intended to limit the scope of the utility model as defined by the attached utility model claims.

Claims (9)

1. A coated plywood article (200) comprising a plywood (90) covered with an outer layer (100), where the outer layer (100) contains a carrier layer (10) coated with a resin coating (20), while the outer layer (100 ) contains a barcode (QR1) located between the layer (10) of the carrier and the resin coating (20), and the barcode (QR1) contains many darker elements (E1) and many lighter elements (E2), with darker elements (E1) have a first average reflectance (R1), lighter elements (E2) have a second average reflectance (R2), the relative difference ((R2-R1) / R2) between the first average reflectance (R1) and the second average the reflection coefficient (R2) is greater than or equal to 40%, and the values of the first and second reflection coefficients (R1, R2) of the elements (E1, E2) are determined for a combination of a barcode (QR1) and a resin coating (20) in white incident light, where the outer layer (100) is a data carrier and contains protected data, x barcode (QR1), and the data is encoded as darker elements (E1) and lighter elements (E2) of the barcode (QR1). 2. Coated plywood product (200) according to claim 1, wherein the barcode is a two-dimensional barcode according to ISO / IEC 18004. 3. Coated plywood product (200) according to claim 1, wherein the barcode is an EAN-13 linear barcode. 4. Product (200) of coated plywood according to any one of paragraphs. 1-3, in which the carrier layer (10) is unbleached kraft paper. 5. Product (200) of coated plywood according to any one of paragraphs. 1-4, in which the lighter elements (E1) are obtained by printing on the media layer (10) with a light color (CLR2). 6. Product (200) of coated plywood according to any one of paragraphs. 1-5, in which the minimum width (w1) of the elements is in the range from 1.0 mm to 5.0 mm. 7. Product (200) of coated plywood according to any one of paragraphs. 1-6, in which the resin coating (20) contains phenolic resin, and the specific gravity of the outer layer (100) is in the range from 60 g / m ² to 400 g / m ² , preferably in the range from 75 g / m ² to 300 g / m ² and preferably in the range from 100 g / m ² to 250 g / m ² . 8. Product (200) of coated plywood according to any one of paragraphs. 1-7, in which the specific gravity of the carrier layer (10) is in the range from 25% to 55% of the specific gravity of the outer layer, preferably in the range from 30% to 45%. 9. Product (200) of coated plywood according to any one of paragraphs. 1-8, in which the barcode (QR1) contains data (DATA1) that includes a uniform resource locator (URL) or identifier.

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