RU2548963C2 - Step-lens coating and method to manufacture specified coating - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: this invention relates to a decorative surface coating and may be used in printing devices. The decorative surface coating (1) comprises a support layer (2), a decorative layer (3) with a lenticular decorative ornament and a transparent working layer (4) with a lenticular surface (5), comprising a linear grid of longitudinal lenticular lenses. The continuous method to manufacture a decorative surface coating (1) having lenticular effect includes a support layer (2). Besides, the method provides application of the decorative layer (3) onto the support layer (2), comprising a lenticular decorative pattern. The transparent working layer (4) is applied onto the decorative layer (3). Then the upper surface of the transparent working layer (4) is stamped to form the lenticular surface (5) containing longitudinal lenticular lenses. A varnish layer (8) is applied onto the surface of the transparent layer (4). Then layers are heated to form a surface coating (1).

EFFECT: simplified manufacturing of a surface coating and provision of the possibility of simple care of the produced coating.

15 cl, 6 dwg, 1 tbl, 1 ex

Description

FIELD OF TECHNOLOGY

The present invention relates to a surface coating with a lenticular effect and to a method for manufacturing such a surface coating.

BACKGROUND

Synthetic surface coatings are known in the art, in particular coatings for floors and walls.

Homogeneous (or baseless) surface coatings or multilayer surface coatings containing a lower layer called a “backing layer” and a top layer known as a “working layer” differ from other polymeric sheet materials in their special properties - good acoustic characteristics, elasticity, resistance to mechanical and chemical influences, as well as moisture resistance and stain resistance.

There is a need for surface coatings with the effect of three-dimensional or three-dimensional image.

Patent Document WO 2010/018096 describes a homogeneous surface coating with a relief-like pattern containing unevenly distributed, unsintered, separate colored polymer particles that are unevenly embedded in a substantially transparent or translucent polymer matrix and are preferably surrounded by this matrix.

However, even if a surface-like image is obtained in such surface coatings, their decorative pattern is visually perceived as static, and when the viewing angle is changed, the effect of a changing or moving image does not occur.

On the other hand, prior art methods for producing visual effects in magazines, newspapers, brochures or packaging materials such as three-dimensional image, animation, vario effect, morphing, zooming, zooming out, stereoscopic effect, or combinations of the above effects. These visual effects are usually obtained by the method of lenticular printing, a technology that provides the formation of lenticular effects, i.e. visual effects created by many images.

Lenticular printing technology typically involves the step of printing lenticular information elements, typically two-dimensional information elements, such as words, pictures, and / or graphics, on a supporting surface. Lenticular information usually contains at least two different pieces of information.

For example, a lenticular image may comprise a plurality of image strips corresponding to a plurality of images, each stripe being made up of a plurality of adjacent lines of image segments arranged side by side. Then, a lenticular raster is superimposed on the lenticular information elements or on the image, and a single cylindrical lens is applied to each information element or image strip.

The lenticular raster through which the lenticular information is visible is usually made of plastic, for example polyester, polyvinyl chloride (PVC), polycarbonate, polyethylene terephthalate (PET), amorphous polyethylene terephthalate (APET) and similar materials.

As a rule, modern methods of manufacturing a lenticular product include several separate technological steps, during which lenticular information is printed on a supporting surface, and then a separately made lenticular raster is applied to the indicated supporting surface, while the raster can also be connected to the supporting surface by lamination .

US Pat. No. 4,816,319 describes a surface coating comprising a substrate material, an impermeable coating containing a decorative pattern that is part of an impermeable coating, and embossed transparent or translucent elements printed on said impermeable coating. The relief elements are made in the form of convex lens elements and contain thixotropic plastic with particles of solid material. However, the manufacturing process of such a coating is complicated and does not allow to obtain a surface coating, providing for the possibility of simple care for such a coating.

OBJECT OF THE INVENTION

An object of the present invention is to provide a surface coating with a lenticular effect that does not have the disadvantages of coatings known in the art, as well as a method for manufacturing such a surface coating.

An additional object of the invention is the provision of an alternative surface coating with a lenticular effect and a method of manufacturing such a surface coating.

In addition, the present invention is the provision of a surface coating with a lenticular effect, providing for the possibility of simple care of this coating.

SUMMARY OF THE INVENTION

The present invention relates to a decorative surface coating comprising a support layer, a decorative layer with a lenticular decorative pattern, and a substantially transparent working layer with a lenticular surface containing a linear array of longitudinal lenticular lenses.

In accordance with specific embodiments of the proposed decorative surface coating may contain one of the following features or any combination of these features:

lenticular lenses have a width "p" of the central part equal to 0.1-1 mm, a radius "r" of curvature equal to p / 1-p / 10, a thickness "e" of the lenticular lens equal to 0.3-6 mm, and a thickness "h" equal to r / 0.2-r / 5;

the frequency of arrangement of lenticular lenses is 10-200 lenses / inch (4-80 lenses / cm),

the length of the longitudinal lenticular lenses corresponds essentially to the width or length of the specified working layer;

a decorative surface coating comprises a lacquer layer covering a substantially transparent working layer;

a decorative surface coating contains an underlying layer;

the decorative layer comprises a printable layer coated with at least one ink;

the backing layer, the decorative layer and / or the substantially transparent working layer are made of a material based on polyvinyl chloride.

The present invention also relates to a continuous method for manufacturing the proposed decorative surface coating, and this method includes the following steps:

provide a support layer;

a decorative layer comprising a lenticular decorative pattern is applied to said support layer;

a substantially transparent working layer is applied to said decorative layer;

embossing the upper surface of the specified essentially transparent working layer with the formation of a lenticular surface containing longitudinal lenticular lenses;

on the surface of the essentially transparent working layer on which the embossing is made, a varnish layer is applied; and

heating said layers to form a surface coating.

In accordance with specific embodiments of the proposed continuous method may include one of the following features or any combination of these features:

the length of the longitudinal lenticular lenses corresponds essentially to the width or length of the specified working layer;

if the support layer is porous, then this method further includes the step of coating said support layer with a polymer composition;

the step of applying a decorative layer includes the step of applying a printable layer to the backing layer and a printing step of said printable layer of the lenticular decorative pattern;

the step of heating these layers is performed before the embossing step and the step of applying the varnish layer;

a support layer and / or a decorative layer and / or a transparent working layer are made of a material based on polyvinyl chloride;

The lenticular effect is selected from the group of effects, including: transition from one pattern to another, transition from one pattern to many patterns, multi-color change, three-dimensional image effect, animation, vario effect, morphing, zooming, zooming out, stereoscopic effect, or a combination of these effects.

The term “application” and “applied” should be understood as the execution of a step or steps of any suitable manufacturing process, during which another layer is formed on one layer, or one layer is brought into contact with another layer.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 schematically shows a first embodiment of the proposed multilayer surface coating;

figure 2 schematically shows a second embodiment of the proposed multilayer surface coating;

figure 3 schematically shows a third embodiment of the proposed multilayer surface coating;

figure 4 schematically shows a fourth embodiment of the proposed multilayer surface coating;

figure 5 schematically shows part of the upper surface of the working layer in accordance with the first embodiment of the proposed multilayer surface coating;

6 schematically shows the various steps of the proposed continuous process.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a decorative surface coating, preferably a multilayer surface coating 1, in particular, to a floor or wall coating comprising a backing layer 2, a decorative layer 3 and a substantially transparent working layer 4, as shown in FIG.

As the support layer 2, any suitable layer can be used. Preferably, such a layer is an endless web bearing other layers constituting a multilayer surface coating 1, and provides dimensional stability of the finished product. This layer is preferably made of a fibrous material, for example fiberglass, textile, paper or cardboard made from cellulose or mineral fibers.

If the support layer 2 is made of a porous fibrous material, then an impregnation layer can be applied to it, which can be made of any polymer material, for example PVC or polyolefin with or without filler. If fillers are present in the impregnation layer, their amount is 100-400 phr (parts per hundred), preferably 100-200 phr (mass fraction with respect to the base polymer). Fillers may be selected from the group consisting of calcium carbonates, chalk, kaolin and talc.

According to another embodiment, the backing layer 2 is a polymer based material layer. It may include PVC resin or polyolefin resin or a combination of polyolefin resins. The material of the backing layer 2 may be sealed or foamed. It may contain fillers in an amount of 100-400 phr, preferably 100-200 phr. The support layer 2 may further comprise additives, for example, a plasticizer, a viscosity regulator, a heat stabilizer, dyes and other additives used in PVC pastes.

In all embodiments, the thickness of the backing layer 2 is 0.1-3 mm, preferably 0.2-2 mm, most preferably about 0.4 mm.

The decorative layer 3 contains one layer or several layers, each layer containing one or more paints, this layer or layers are applied to the upper surface of the support layer 2 or to the impregnation layer.

Preferably, the decorative layer 3 is applied over any suitable primer layer deposited on the upper surface of the backing layer 2, or on the upper surface of the impregnation layer.

In the preferred embodiment (FIG. 3), the decorative layer 3 comprises a printable layer 6, sealed or foamed, made from a polymer composition on which one layer or several layers of paint or several paints are applied.

Preferably, the printable layer 6 is made of a composition based on PVC or a polyolefin with or without filler, suitable for bonding and fixing the printed ink or paints. Preferably, the thickness of the printable layer 6 is 0.01-2 mm, more preferably about 0.25 mm. Preferably, the amount of filler is 0-400 phr, more preferably 100-200 phr.

In all embodiments of the decorative layer 3, the specified decorative layer 3 contains a lenticular decorative pattern, which in the proposed surface coating when changing the angle of view, under which the observation of lenticular lenses, is perceived as changing or moving. The decorative pattern preferably contains at least two alternating decorative patterns that are visible from at least two viewing angles. Further, at least two decorative patterns are made up, segmented, alternated and applied so as to obtain a lenticular decorative pattern. Such a composite decorative pattern may contain information elements of the same type, for example, colors, words, drawings, drawings, images or graphics, or may contain information elements of different types, and may be, for example, a combination of colors, words, drawings, drawings, pictures and / or graphics.

In a preferred embodiment, the lenticular decorative pattern contains at least two alternating colors, which allows for a lenticular effect in the form of a color change. However, the lenticular decorative pattern may also contain several alternating colors to provide multi-color changes.

The substantially transparent working layer 4 is a layer essentially free of pigment and fillers and having a composition based on PVC, polyethylene terephthalate (PET), or a composition containing an acidic polymer, neutralized or partially neutralized, to form an ion-containing polymer.

According to a preferred embodiment, the composition of the transparent working layer 4 is a plastisol-based composition. Such a composition may further comprise a plasticizer, a heat stabilizer, an additive or a mixture of these substances. For example, DINP diisononyl phthalate (DINP), dioctyl terephthalate (DOTP) or isononyl benzoate (INB) can be used as a plasticizer. As a thermal stabilizer, for example, zinc oxide ZNO, a barium-zinc (Ba-Zn) complex or a calcium-zinc (Ca-Zn) complex can be used. As an additive, a viscosity regulator, for example, glycol ester, aromatic and aliphatic hydrocarbons, may act.

Essentially transparent working layer 4 may contain a matting agent, pigment or filler in a very low concentration, however, to create a lenticular effect, it is necessary to ensure transparency. The pigment or filler content is 0-3 phr. Preferably, the transparent working layer 4 forms a continuous layer with a thickness of 0.1-2 mm, preferably 0.3-0.4 mm, on the decorative layer 3.

On the upper surface of the substantially transparent working layer 4 there is a lenticular surface 5 playing the role of a lenticular raster, as shown in FIGS. 1-5. The lenticular surface 5 contains bulges forming a thin linear lattice of longitudinal lenticular lenses, extending along the entire width and length of the working layer 4. Each lens is a section in the form of a long convex cylinder, which provides focusing and extends essentially along the entire length of the lenticular decorative pattern. However, it is possible to use lenses of other shapes or profiles, such as, for example, pyramidal, trapezoidal, parabolic and the like.

The lenticular lenses of the lenticular surface 5 are selected so as to match the lenticular decorative pattern with the distance at which the lenticular pattern will be observed. In the ideal case, the indicated distance is equal to the average height of a person.

Preferably, the central part “p” or the width of the lenticular lenses (FIG. 5) is 0.10-1 mm, the radius “r” of the lens curvature is p / 1-p / 10, and the thickness “e” of the lens is 0.3-6 mm, and the thickness "h" of the working layer under the curved surface of the lens is r / 0.2-r / 5.

The length of the longitudinal lenticular lenses corresponds to either the width or the length of the surface coating, depending on the direction of the convexity. Preferably, the length of the longitudinal lenticular lenses corresponds to the width of the working layer 4.

According to another embodiment, the length of the longitudinal lenticular lenses is less than either the width or the length of the surface coating, depending on the direction of the convexity. Thus, the lenticular surface 5 does not extend over the entire surface of the substantially transparent working layer 4. Therefore, layer 4 may contain one or more boundary zones or free areas not containing lenticular lenses.

The frequency of arrangement of lenticular lenses is 10-200 lenses / inch (4-80 lenses / cm), preferably 30-80 lenses / inch (12-32 lenses / cm).

As shown in figure 4, the proposed multilayer surface coating 1 may additionally contain an underlying layer 7, which is a compacted (not foamed) or foamed polymer-based layer that improves the physicomechanical properties of the multilayer surface coating 1, in particular soundproofing or heat-insulating properties. It may contain a PVC resin or a polyolefin resin or a combination of polyolefin resins. Preferably, said layer may contain any suitable filler in an amount of 0-400 phr, more preferably 100-200 phr.

The thickness of the underlying layer 7 is 0.1-4 mm

As shown in FIG. 2, the multilayer surface coating 1 may further comprise a varnish layer 8 deposited and cured on the lenticular surface 5 of a substantially transparent working layer 4.

Preferably, the lacquer layer 8 has a heat-resistant composition comprising a non-thermoplastic polymer, which is a polymer that is cured by ultraviolet (UV) or thermal radiation. Such a polymer can be, for example, aliphatic, anionic or UV-curable polyurethane dispersions, for example, sold under the brand name Bayhydrol® UV XP 2721.

Preferably, the lacquer layer 8 has a thickness of 0.001-0.2 mm, more preferably 0.005-0.02 mm.

Preferably, the maximum thickness of the finished multilayer surface coating 1 is 11.2 mm, more preferably 0.5-10 mm, more preferably 2-4 mm, even more preferably about 3 mm.

The resulting lenticular effect consists in either switching from one pattern to another, or to several other patterns, multicolor changes, three-dimensional image effect, animation, vario effect, morphing, zooming, zooming out, stereoscopic effect, or a combination thereof.

The present invention also relates to a method for manufacturing the proposed surface coating.

As shown in FIG. 6, this method is a continuous process including the steps of feeding the backing layer 2, for example fibrous material in the form of a roll 8, to a continuous conveyor 7 that moves the backing layer 2 to several coating or laminating devices 9, 10, 12, 14 and 17, providing a continuous process. In a preferred embodiment, the support layer 2 is used as the continuous conveyor 7.

Since usually the material of the support layer 2 is supplied in the form of rolls, the proposed method may further include, as a first step, the stage where the unwinding device unwinds the support layer 2, providing a continuous process by creating an endless web.

In embodiments in which the support layer 2 is porous, the method of the invention may include, as a first step, the step of coating the layer with an impregnating device 9 by a polymer-based composition, with or without fillers, for example, a PVC-based composition. However, either laminating the polymer-based sheet material on the backing layer 2 or laminating the backing layer 2 on the polymer-based sheet material can also be used.

In embodiments where the backing layer 2 is a densified layer, a similar impregnation step is optional.

The method further includes the step of applying a decorative layer 3 containing a lenticular decorative pattern, performed either by applying at least one ink to the upper surface of the support layer 2 using any suitable printing device 11, or by applying a printable layer 6 using the device 10 prior to application on the specified layer 6 of at least one ink by the printing device 11.

The printing device 11 may be, for example, an intaglio printing device or a digital printing device.

Preferably, the ink or inks used to print the lenticular decorative pattern can be any suitable ink that dries quickly from liquid to solid. This paint or paints are preferably paints that cure under the influence of temperature or ultraviolet radiation.

Preferably, a paint or several paints is applied to the upper surface of the backing layer 2 or impregnation layer or to a printable layer 6, which is an intermediate layer located between the backing layer 2 and the working layer 4, and / or on the lower surface of the substantially transparent working layer 4 More preferably, the layer or layers on which the paint or paints are applied are pre-gelled to form a substantially solid rather than liquid form.

As the printing device 11, any suitable printing device may be used comprising a plurality of printheads providing high-quality printing of a multicolor lenticular pattern.

Preferably, the lenticular decorative pattern is printed at a density of 200-2000 dpi (DPI) (79-790 dots / cm), more preferably 600-1500 dpi (236-591 dots / cm).

Optionally, a primer suitable for printing may be applied before the application of the decorative layer 3.

The proposed method further includes the step of applying over the decorative layer 3 a substantially transparent working layer 4 using the device 12. The device is a coating device, calender, or extruder.

The lenticular surface 5 on the transparent layer 4 is obtained using any suitable means, preferably by means of an embossing means 13 configured to form a linear lattice of longitudinal convex lenses extending over the entire width and length of the working layer 4.

The specified method further includes the step of applying to the lenticular surface 5 of the working layer 4 of the varnish layer 8, carried out using a varnishing machine 14 by any suitable method of applying varnish. Preferably, the lacquer layer 8 is applied by rolling or spraying, followed by curing by ultraviolet radiation or heating.

The lacquer layer 8 is applied before the heating step in order to protect the lenticular surface 5 from deformation and destruction of the shape of the lenses during exposure to heat in the heating device 15.

The heating step is carried out using the heating device 15 at a temperature of 170 ° C-210 ° C, preferably about 195 ° C for 1-4 minutes, preferably for 2-2.5 minutes.

As a heating device 15, either a furnace or cylinders used in gelatinization are used.

During the heating step, all layers forming the proposed decorative surface stick together, as well as foaming the corresponding layers to form the structure and ensure the integrity of the finished product.

For embodiments containing at least one layer, preferably several layers, based on PVC, which are applied in liquid form, the heating step is the step of gelatinization of the composition or compositions based on PVC.

In those embodiments in which the decorative surface according to the invention comprises one or more layers sensitive to heat and / or pressure and which may collapse during the embossing step, which relates in particular to the foamed printable layer 6, the embossing step and the step applying the lacquer layer 8 is performed after the heating or gelatinization step.

The embossing means 13 or 16 are essentially the same and relate to mechanical means. Preferably, the means 13 or 16 comprise an embossing roller or a plurality of rollers, for example, engraved cylinders containing grooves (negative shapes) corresponding to lenticular lenses to create a transparent working layer 4 on the upper surface.

As the embossing roller, it is preferable to use a steel roller with a protective chrome coating having a diameter of 150-550 mm, preferably 350-400 mm. The embossing is carried out at a temperature of 140 ° C-200 ° C, preferably at 175 ° C, while the linear pressure between the tape-guiding roller and the embossing roller should be 20-100 kg / cm, preferably 50 kg / cm.

The proposed method may further comprise a step on which the surface coating performed in accordance with this invention is cut into segments of a certain length to form tiles or rolls of surface coating.

In all embodiments, the terms “application” or “applied” should be understood to mean the implementation of any suitable process step in which one layer is formed on another layer or brought into contact with another layer. Thus, these layers can be made by coating another layer with an appropriate composition or by forming from any suitable composition a layer that is applied to another layer by calendaring or extrusion.

Examples

Example 1

In one example, glass fabric (40 g / m ² ) is coated with a liquid-based PVC composition, thereby forming an impregnation layer on the glass fabric. After gelatinization, the thickness of the impregnated fiberglass is about 0.5 mm. Before carrying out preliminary gelation, a decorative layer 3 of a thickness of 0.3 is applied to the impregnated base in liquid form. On the specified decorative layer 3, a lenticular decorative pattern is printed, forming a wood or tile pattern with a varie effect, and then a working layer 4 of 0.3 mm thickness is applied in liquid form. After gelatinization, layer 4 is embossed, thus forming a lenticular surface 5. Then, a polyurethane (PU) varnish is applied to the embossed surface 8. A base foam material of about 1.3 mm thickness is applied to the back side of the surface coating as an insulating layer. The total thickness of the finished surface coating containing the underlying foam material is about 3 mm.

Example 2

In another example, glass fabric (40 g / m ² ) is coated with a liquid-based PVC composition, thereby forming an impregnation layer on the glass fabric. After gelatinization, the thickness of the impregnated fiberglass is about 0.5 mm. Before carrying out the preliminary gelatinization, a decorative layer 3 of 0.2 mm thickness is applied to the impregnated base in liquid form. On the specified decorative layer 3, a lenticular decorative pattern with a thickness of about 0.3 mm is printed in liquid form, and then a working layer 4 of a thickness of 0.3 mm is applied in liquid form. On the reverse side of the impregnated fiberglass fabric as a reinforcing layer, a densified undercoat is applied with a thickness of about 1 mm. After gelatinization and processing in the furnace 15, the working layer 4 is embossed, forming a lenticular surface 5. Then, a polyurethane varnish 8 is applied to the embossed surface. The total thickness of the finished surface coating containing a densified undercoat is about 2 mm.

The thickness of the lacquer layer 8 was evaluated in accordance with EN 429, and the stain resistance was determined according to EN 423.

Abrasion was evaluated by testing (using the Taber method (TWE method) to assess abrasion resistance), which was carried out by placing a surface coating sample, usually a sample with a diameter of about 105 mm, on a Taber Abraser with Micro Fine abrasive material 1500 (13 mm wide) glued to rubber rollers. The first test cycle of the sample consisted of 20 abrasions, after which tar was applied to the abraded area. After 30 minutes, tar was removed with cotton moistened with ethyl or isopropyl alcohol, and a residual spot was visually assessed. A point “1” evaluated the state of the sample in which the tar spot remained visible, and a score of “5” evaluated the state in which the tar spot was not visible. Abrasion cycles were performed until the sample received a rating of "5" points. The wear resistance of the sample was determined by the number of abrasion cycles.

The test results are shown in table 1.

Table 1 Test Test method Standard surface finish without varnish The proposed surface coating with a layer of varnish The thickness of the varnish film, microns EN429 0 8 microns Abrasion of the varnish film, the number of cycles on Taber abrasimeter Taber Abrasimeter Method (TWE) twenty 80 Stain Resistance, Points EN423 3,5 4.14

Claims (15)

1. A decorative surface coating (1) comprising a backing layer (2), a decorative layer (3) with a lenticular decorative pattern, and a substantially transparent working layer (4) with a lenticular surface (5) containing a linear array consisting of longitudinal lenticular lenses . 2. The coating according to claim 1, in which these lenticular lenses have a width "p" of the central part equal to 0.1-1 mm, a radius "r" of curvature equal to p / 1-p / 10, a thickness "e" of the lenticular lens equal to 0.3-6 mm and a thickness "h" equal to r / 0.2-r / 5. 3. The coating according to claim 1 or 2, in which the frequency of placement of lenticular lenses is 10-200 lenses / inch (4-80 lenses / cm). 4. The coating according to claim 1, in which the length of the longitudinal lenticular lens essentially corresponds to the width or length of the specified working layer (4). 5. The coating according to claim 1, in which a substantially transparent coating layer (4) is coated with a varnish layer (8). 6. The coating according to claim 1, additionally containing an underlying layer (7). 7. The coating according to claim 1, in which the decorative layer (3) contains a printable layer (6) coated with at least one ink. 8. The coating according to claim 1, in which the support layer (2), the decorative layer (3) and / or essentially transparent working layer (4) is made of a material based on polyvinyl chloride. 9. A continuous method for manufacturing a decorative surface coating (1) having a lenticular effect, comprising the following steps:
provide the presence of a support layer (2);
on the specified support layer (2) apply a decorative layer (3) containing a lenticular decorative pattern;
a substantially transparent working layer (4) is applied to said decorative layer (3);
embossing the upper surface of the specified essentially transparent working layer (4) with the formation of a lenticular surface (5) containing longitudinal lenticular lenses;
on the surface of the essentially transparent working layer (4) on which the embossing is made, a varnish layer (8) is applied;
these layers are heated to form a surface coating (1). 10. The method according to claim 9, in which the length of the longitudinal lenticular lenses corresponds essentially to the width or length of the specified working layer (4). 11. The method according to claim 9, in which the support layer (2) is porous, wherein the method further includes a step on which the specified support layer (2) is coated with a polymer-based composition. 12. The method according to claim 9 or 10, in which the step of applying the decorative layer (3) includes the step of applying a printable layer (6) to the backing layer (2) and the printing step of the indicated printable layer (6) of the lenticular decorative pattern . 13. The method according to claim 9, in which the step of heating these layers is performed before the embossing step and the step of applying the varnish layer (8). 14. The method according to claim 9, in which the support layer (2), and / or the decorative layer (3), and / or the transparent working layer (4) is made of a material based on polyvinyl chloride. 15. The method according to claim 9, in which the lenticular effect is selected from the group of effects, including: transition from one pattern to another, transition from one pattern to other patterns, multi-color change, three-dimensional image effect, animation, vario effect, morphing, zoom, zoom out, stereoscopic effect, or a combination of these effects.

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