Multi-layer matte coated surface preparation process and product having multi-layer coated surface

Abstract

This invention relates to a method for producing a multilayer matte coated surface, in which a carrier (1) is coated with a layer (4) of coating containing an interlayer coating bond strength improving additive. The coating layer is exposed to excimer radiation at a wavelength of 172 nm, followed by treatment with an electron beam or UV radiation at a dose necessary to achieve gelatinization of the coating, thereby achieving the appropriate gelatinization effect. At least one other coating layer containing the bond strength improving additive is added to this first layer, which is then re-exposed to excimer radiation and the same dose as the first layer to electron beam or UV radiation. If this second layer is the outer or final layer (6), its entire surface is treated with an electron beam or UV radiation at a dose necessary to complete the polymerization process of all coating layers, thereby achieving the appropriate hardening effect. The invention also relates to furniture products having a multilayer matte coated surface obtained by this method.

Description

[Technical Field]

[0001] The subject of the present invention is a method for producing a multi-layer matte coated surface, as well as a product in which the multi-layer matte coated surface is on a paper foil or plastic carrier, in particular BOPP, CPP and PVC.

[0002] The present invention can be applied to furniture surfacing and can also be used to provide structure in the creation of melamine surfaces. [Background technology]

[0003] Decorative covering materials used on furniture surfaces include paper or plastic foils that are left unprinted or printed by intaglio, flexographic, digital printing, etc., and are covered with a colorless or colored covering.

[0004] Known examples include concave three-dimensional coated surfaces with a printed structure, for example with a special paint having anti-adhesion properties, and convex surfaces with a multi-printed structure made of paint and extender or varnish. Another classification of surfaces is synchronous surfaces, whose three-dimensional structure reflects the printed pattern, and asynchronous surfaces, whose three-dimensional structure does not reflect the printed pattern.

[0005] For practical reasons and in recognition of consumer aesthetic preferences, furniture manufacturers use matte-finish boards in furniture production. Currently known technology allows the use of water-based EB coatings (where the polymerization of the coating is achieved by electron beams) or UV coatings (where the polymerization of the coating is achieved by ultraviolet light) in combination with matting agents to produce a matte finish on the coated surface.

[0006] Examples of such finishes include Schattdecor products, such as the flat Smartfoil®, the three-dimensional concave Smartfoil® Real, and the three-dimensional convex Smartfoil® Evo and Smartfoil® 3D. Matting agents adversely affect the rheological properties (flowability) of the coating, complicating the coating process, especially when deposited on applicator devices such as paint rollers. The addition of matting agents to coatings used for three-dimensional structure printing also limits the creation of structures with high-resolution screen rulings (line rulings) due to the large size of the matting particles. In practice, achieving the chemical and mechanical standards for furniture foils with a gloss of less than 5° (measured at 60° geometric time) is extremely difficult.

[0007] A gloss of less than 6° can be achieved on a surface by known means by exposing a special type of UV or EB coating to excimer lamp radiation having a wavelength of 172 nm.

[0008] One method for creating such a matte surface is to apply an EB coating to paper, treat it with an excimer lamp, and then fully cure it with an electron beam (EB). However, this method only results in a flat, single-layer surface. It is not possible to apply other layers to the cured coating while maintaining the bond strength required for those layers in the furniture industry. Summary of the Invention [Problem to be solved by the invention]

[0009] It is an object of the present invention to develop a method for producing a multi-layer three-dimensional coated furniture surface in which at least one coating layer is exposed to an excimer, thus making it matte without the use of matting agents. [Means for solving the problem]

[0010] It has been discovered that by exposing the applied coating layer to light having a wavelength of 172 nm and then gelatinizing it with partial EB or UV curing, the process of application, excimer treatment, and gelatinization can be repeated to fully cure (fully polymerize) all coating layers. The resulting surface meets the furniture industry's requirements for resistance to delamination, resistance to the effects of liquids, and mechanical resistance.

[0011] The essence of the present invention is that the carrier is coated with a coating layer containing an additive that enhances the interlayer coating bond strength. The coating is applied using a coating system. The applied coating layer is then exposed to excimer radiation having a wavelength of 172 nm, followed by an electron beam exposure at a dose of 2-7 kGy, which is the dose required to gelatinize the coating. The degree of gelatinization was determined by FTIR testing, with a peak at 1191 cm -1 At wavelengths of 2922 and 2878 cm, the transmittance reaches 45% to 50% in the irradiation range of 3 to 5 kGy. -1 The transmittance difference between the two wavelengths reaches about 5%, and the transmittance difference between the two wavelengths reaches about 1100 cm -1 The transmittance at the wavelength is approximately 1160 cm -1 The transmittance of the first or final layer is lower than that of the first or final layer. Exposing the coating to UV radiation can also achieve a similar gelatinization effect. After this procedure, another coating layer with a bond strength-improving additive is applied over the first coating layer and is also exposed to excimer radiation and electron beam or UV radiation at the same dose as the first or final layer. If this layer, the second or final layer, is the outer or final layer, the entire surface is exposed to electron beam or equivalent UV radiation at a dose of at least 35 kGy to complete the polymerization process for the entire coating layer. If the second layer is not the final layer, it is exposed exclusively to excimer radiation and electron beam or UV radiation at the same dose as the first layer. Because the coating is gelatinized or partially cured, n coating layers can be applied to the entire surface or to portions of it. After complete polymerization, the transmittance value at a dose of 40 kGy is 1191 cm. -1At wavelengths of approximately 2922 and 2878 cm, the percentage is over 60%. -1 The transmittance difference between the two wavelengths is about 10%, and the transmittance difference between the two wavelengths is about 1100 cm -1 The transmittance at the wavelength is approximately 1160 cm -1 In selecting a coating bond strength improving additive, it is useful to choose from a group of additives based on ultra-high-sensitivity polyethylene and micronized wax with the addition of propoxylated glycerol triacrylate.

[0012] It is also beneficial to subject the coating to electron beam treatment with a dose of 2-6 kGy to ensure interlayer bond strength.

[0013] The desired structure can be produced online in a single pass through a coating or printing / coating machine, or offline on several machines or multiple passes through a single machine, although online methods are preferred for this process.

[0014] The essence of this product with a multilayered surface is that it has at least one carrier coated with a multilayered matte coating obtained by one of the above-mentioned methods, the surface of which is coated with at least one coating containing 5-30% by weight of a bonding strength improving additive, thereby ensuring the bonding strength between the layers. The three-dimensional effect of this furniture product is the result of the individual structure of the various layers.

[0015] Advantageously, the carrier material is paper or petroleum-based foil, or chemical foil, or wood-based board.

[0016] It may also be beneficial to provide the carrier with a printed layer.

[0017] It may also be beneficial for subsequent layers to exhibit different gloss levels after being cured to a complete degree of polymerization.

[0018] The subject matter of the present invention will be described with reference to various embodiments. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 shows a cross section of an effected furniture foil obtained with synchronous positive molding as described in Example 1a. [Figure 2] FIG. 1 shows the effect obtained with asynchronous positive as described in Example 1b. [Figure 3] FIG. 1 is a cross-sectional view of a foil with a synchronization effect obtained in a negative mold. [Figure 4] FIG. 10 shows that with asynchronous effect. [Figure 5] FIG. 1 shows a cross section of a multilayer foil with overprinting on a carrier. [Figure 6] FIG. 1 shows a cross section of a furniture foil obtained in positive form, with two coating layers, with the color effect provided by the unprinted paper. [Figure 7] FIG. 1 shows a cross section of a similar foil having three coating layers. DETAILED DESCRIPTION OF THE INVENTION

[0020] [Example 1a...Positive type, synchronous effect] This foil production process is based on rotary intaglio printing. A woodgrain design (2) is applied to a carrier (1) made of paper foil. The design is transferred onto the band by pressing it against a printing cylinder with a special roller covered with rubber of the appropriate hardness. The cylinder is dipped into a rotating toner container with a feed roller. Excess paint is removed with an adjustable scraper blade on the printing cylinder. The painted band is then dried in a hot air chamber before being transferred to the next printing unit. The carrier passes through three printing stations. This process is carried out using water-soluble paint.

[0021] The next step is to coat the carrier 1 with a protective layer 3. This is achieved by a special intaglio cylinder for applying primer 3717.212. The cylinder provides a density of approximately 6 g / m 2The primer is applied and cured in a gas dryer at a temperature of 140°C, just like the paint.

[0022] The next step is to apply the first layer, EB coating 4, using a 3WS coating system. At this stage of the process, the composition of coating A is ·FL27692 …1 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0023] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: ·Irradiation dose 5kGy High voltage 100kV Let's say.

[0024] The resulting surface has a 60° geometric gloss of less than 6°.

[0025] The carrier band is then transferred to a station having an intaglio cylinder with synchronized patterns relating to the various elements of the main design. The composition of coating B used to imprint structure 6 is: ·FLE27800 …1 part ·FZ2720 …0.15 parts Let's say.

[0026] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0027] The resulting foil has the cross section shown in Figure 1, which provides a tactile impression in addition to the visual effect of the imprinted design. Its "porous" structure correlates with the various elements of the main design and has a 60° geometric gloss of 1-2°.

[0028] The composite coatings in both addition units are characterized by special additives that improve the bond strength between the individual layers. An additional condition for achieving good bond strength is that the coatings are subjected to prepolymerization (gelatinization) of the coating layers during the preparation of the first matte surface coating.

[0029] [Example 1b...Positive, asynchronous effect] On a carrier 1 made of paper foil, a design and a protective layer are added in the same manner as that presented in Example 1a.

[0030] The next step is to apply the first layer, EB coating 4, using a 3WS coating system. In this part of the process, the composition of coating A is ·FL27692 …1 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0031] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: ·Irradiation dose 5kGy High voltage 100kV Let's say.

[0032] The resulting surface has a 60° geometric gloss of less than 6°.

[0033] The carrier band is then transferred to a station containing an intaglio cylinder with asynchronous patterns relating to the various elements of the main design. The composition of coating B used to imprint structure 6 is: ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0034] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0035] The resulting foil has the cross section shown in Figure 2, which provides a tactile impression in addition to the visual effect of the imprinted design. Its "porous" structure does not correlate with the various elements of the main design, and it has a 60° geometric gloss of 1-2°.

[0036] The composite coatings in both addition units are characterized by special additives that improve the bond strength between the individual layers. An additional condition for achieving good bond strength is that the coatings are subjected to prepolymerization (gelatinization) of the coating layers during the preparation of the first matte surface coating.

[0037] [Example 2a...Negative type, synchronization effect] A design 2 and a protective layer 3 are applied to a carrier 1 made of paper foil in the same manner as presented in Example 1a.

[0038] The next step is to apply the first layer, EB coating 4, using a 3WS coating system. In this part of the process, the composition of coating A is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0039] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0040] The surface obtained after this step is characterized by a 60° geometric gloss of 1-2° and an 85° geometric gloss of more than 8°.

[0041] The next step in the production process is to add synchronous structure to the various elements of the main design.

[0042] The composition of the coating agent B,6 used for imprinting the structure is ·FL27692 …1 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0043] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0044] The coating applied with a negative intaglio cylinder and cured has a 60° geometric gloss of less than 6°. A cross section of this type of foil is shown in FIG.

[0045] [Example 2b...Negative, asynchronous effect] The procedure is the same as that of Example 2a, with the generator parameter settings for prepolymerization (gelatinization) being: ·Irradiation dose 5kGy High voltage 100kV Let's say.

[0046] The surface obtained after this step is characterized by a 60° geometric gloss of 1-2° and an 85° geometric gloss of more than 8°.

[0047] The next step in the production process is to add asynchronous structures 6 to the various elements of the main design.

[0048] The coating B,6 used to apply this structure has the same composition as in Example 2a. The subsequent steps are also the same as in Example 2a. The gloss parameters of the resulting product are similar to those of Example 2a. A cross section of this type of foil is shown in Figure 4.

[0049] [Example 3...n coating layers] The procedure is the same as that of Example 1a, with the generator parameter settings for prepolymerization (gelatinization) being: Irradiation dose 3kGy High voltage 100kV Let's say.

[0050] The resulting surface has a 60° geometric gloss of less than 6°.

[0051] The carrier band is then transferred to a station having an intaglio cylinder with synchronized patterns according to the various elements of the main design. The composition of the coating C used to apply structure 5 is: ·FLE27800 …1.0 part ·FL27692 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0052] The resulting structure has a basis weight of 3 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0053] The carrier band is then transferred to a station with an intaglio cylinder. The composition of the coating agent B used to imprint the structure 6 is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0054] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0055] The result is a three-dimensional structure with a matte effect, the corresponding cross section of which is shown in Figure 5.

[0056] [Example 4a... Offline printing, asynchronous, positive type] On a carrier 1 made of paper foil, a design 2 and a protective layer 3 are applied in the same manner as presented in Example 1a. In the following technological cycle, the first layer, an EB coating 4, is applied in a coating machine by a 3WS coating system.

[0057] In this part of the process, the composition of Coating A is ·FL27692 …1 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0058] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0059] The resulting surface has a 60° geometric gloss of less than 6°.

[0060] The carrier band is then transferred to a station containing an intaglio cylinder with a pattern 6 that is asynchronous with the various elements of the main design. The coating B,6 used to imprint the structure has the following composition: ·FLE27800 …1.0 part ·FZ2720 …0.05 parts Let's say.

[0061] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0062] The resulting foil has a cross section as shown in Figure 2, which provides a tactile impression in addition to the visual effect of the imprinted design. Its "porous" structure does not correlate with the various elements of the main design, and it has a 60° geometric gloss of 1-2° and an 85° geometric gloss of more than 8°.

[0063] The composite coatings in both addition units are characterized by special additives that improve the bond strength between the individual layers. An additional condition for achieving good bond strength is that the coatings are subjected to prepolymerization (gelatinization) of the coating layers during the preparation of the first matte surface coating.

[0064] [Example 4b... Offline printing, asynchronous negative type] To the carrier 1, consisting of paper foil, a design 2 and a protective layer 3 are applied in the same manner as presented in Example 1a. In the following technological cycle, the first layer, an EB coating 4, is applied in a coating machine by a 3WS coating system.

[0065] In this part of the process, the composition of Coating A is ·FLE27800 …1.0 part ·FZ2720 …0.1 part Let's say.

[0066] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0067] The surface obtained after this step has a 60° geometric gloss of 1-2° and an 85° geometric gloss of more than 8°.

[0068] In the next offline technology cycle, another cladding machine adds asynchronous structures 6 to the various elements of the woodgrain design.

[0069] At this stage of the process, the composition of coating B.6 ·FL27692 …1 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts FZ2720 …0.2 parts Let's say.

[0070] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0071] The coating applied with an intaglio cylinder and cured has a 60° geometric gloss of less than 6°. A cross section of this type of foil is shown in Figure 4.

[0072] [Example 5a... Offline printing, multi-layer, asynchronous, positive type] The procedure is the same as that of Example 4a, and the composition of coating agent A,4 is ·FL27692 …1.0 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0073] The resulting coating weight is 8 g / m2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose 3kGy High voltage 100kV Let's say.

[0074] The resulting surface has a 60° geometric gloss of less than 6°.

[0075] The carrier band is then transferred to a station containing an intaglio cylinder with asynchronous patterns according to the various elements of the main design. The composition of the coating C used to apply structure 5 is: ·FLE27800 …1.0 part ·FL27692 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0076] The resulting coating weight is 3 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0077] The carrier band is then transferred to a station with an intaglio cylinder. The composition of the coating agent B used to imprint the structure 6 is ·FLE27800 …1.0 part ·FZ2720 …0.30 parts Let's say.

[0078] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0079] The final coating layer has a 60° geometric gloss of 1 to 2°.

[0080] The result is a three-dimensional mat structure, the cross section of which can be seen in FIG.

[0081] [Example 6...2 layers, no coating on carrier] To the carrier 1, consisting of paper foil, a protective base coating 3 consisting of primer 3717.212 is applied in the same manner as described in Example 1a.

[0082] The next step is to apply the first layer, EB coating 4, using a 3WS coating system. At this stage of the process, the composition of coating A is ·FL27692 …1.0 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0083] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: ·Irradiation dose 5kGy High voltage 100kV Let's say.

[0084] The resulting surface has a 60° geometric gloss of less than 6°.

[0085] The carrier band is then transferred to a station with an intaglio cylinder. The composition of the coating B,6 used for imprinting the structure is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0086] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0087] The added "porous" structure has a 60° geometrical gloss of 1 to 2°. The cross section is shown in Figure 6.

[0088] [Example 7...Offline coating, 3 layers, no coating on carrier] To the carrier 1, consisting of paper foil, a protective base coating 3 consisting of primer 3717.212 is applied in the same manner as described in Example 1a.

[0089] The next step is to apply the first layer, EB coating 4, using a 3WS coating system. At this stage of the process, the composition of coating A is ·FL27692 …1.0 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0090] The resulting coating weight is 10 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose 3kGy High voltage 100kV Let's say.

[0091] The resulting surface has a 60° geometric gloss of less than 6°.

[0092] The carrier band is then transferred to a station with an intaglio cylinder. The composition of the coating C used to apply structure 5 is ·FLE27800 …1.0 part ·FL27692 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0093] The resulting coating weight is 3 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0094] In the next offline technological cycle, the structure 6 is added to the carrier band in a station with an intaglio cylinder.

[0095] The composition of the coating agent B,6 used for imprinting the structure is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0096] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0097] The final coating layer has a 60° geometric gloss of 1 to 2°.

[0098] The result is a three-dimensional structure with a matte effect, the cross section of which is shown in FIG.

[0099] [Example 8...BOPP foil, positive type, synchronization effect] This foil production process is based on rotary intaglio printing. A woodgrain design (2) is applied to a carrier (1) made of BOPP foil. A special roller covered with rubber of the appropriate hardness presses it against a printing cylinder, transferring the design onto the band. The cylinder is dipped into a rotating toner container by a feed roller. An adjustable scraper blade on the printing cylinder removes excess paint. The painted band is then dried with IR radiation before being transported to the next printing unit. The carrier passes through three printing stations. This process is carried out using water-soluble paint.

[0100] The next step is to apply the first layer, EB coating 4, using a 3WS coating system. At this stage of the process, the composition of coating A is ·FL27692 …1.0 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0101] The resulting coating weight is 10 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: Irradiation dose: 4kGy High voltage 100kV Let's say.

[0102] The resulting surface has a 60° geometric gloss of less than 6°.

[0103] The carrier band is then transferred to a station containing an intaglio cylinder with synchronized patterns according to the various elements of the main design. The composition of the coating B.6 used for imprinting the structure is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0104] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0105] The resulting foil, besides the visual effect of the imprinted design, also gives a three-dimensional impression: its "porous" structure correlates with the various elements of the main design and has a 60° geometric gloss of 1-2°.

[0106] The composite coatings in both addition units are characterized by special additives that improve the bond strength between the individual layers. An additional condition for achieving good bond strength is that the coatings are subjected to prepolymerization (gelatinization) of the coating layers during the preparation of the first matte surface coating.

[0107] [Example 9... Offline printing, PML coating... Rotodecor™ coating machine, positive type, asynchronous effect] A first layer of EB coating 4 is applied by the DKR™ Coating System to a carrier 1 previously imprinted with a design 2 and treated with primer 3717.212 as in Example 1a. At this stage of the process, the composition of Coating A is ·FL27692 …1.0 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0108] The resulting coating weight is 7 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: ·Irradiation dose 5kGy High voltage 100kV Let's say.

[0109] The resulting surface has a 60° geometric gloss of less than 6°.

[0110] The carrier band is then repositioned on the unwinder of a coating machine equipped with a single unit containing an excimer device and EB. In the next cycle, the band is transferred to a station equipped with an intaglio cylinder with a pattern asynchronous to the various elements of the main design. The composition of the coating B.6 used for imprinting the structure is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0111] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0112] The resulting foil provides a three-dimensional impression in addition to the visual effect of the imprinted design. Its "porous" structure does not correlate with the various elements of the main design and has a 60° geometric gloss of 1-2°.

[0113] The composite coatings in both addition units are characterized by special additives that improve the bond strength between the individual layers. An additional condition for achieving good bond strength is that the coatings are subjected to prepolymerization (gelatinization) of the coating layers during the preparation of the first matte surface coating.

[0114] [Example 10... Offline digital imprinting, positive, asynchronous effect] A first layer of EB coating 4 is applied by a 3WS coating system to a carrier 1 that has previously been imprinted with a design 2 by a Palis™ digital printer and treated with primer 3717.212. At this stage of the process, the composition of coating A is ·FL27692 …1.0 part FLE27800 …0.1 parts ·FZ2711 …0.07 parts ·FZ2720 …0.15 parts Let's say.

[0115] The resulting coating weight is 8 g / m 2 After exposure to an excimer lamp, it is subjected to a prepolymerization process (gelatinization) in a PCT EB generator. The generator parameters are set as follows: ·Irradiation dose 5kGy High voltage 100kV Let's say.

[0116] The resulting surface has a 60° geometric gloss of less than 6°.

[0117] The carrier band is then transferred to a station containing an intaglio cylinder with asynchronous patterns relating to the various elements of the main design. The composition of the coating B.6 used for imprinting the structure is ·FLE27800 …1.0 part ·FZ2720 …0.15 parts Let's say.

[0118] The surface is exposed to an excimer lamp and then cured by electrons in an EB generator over the total thickness of the entire coating layer, the curing parameters being: Irradiation dose: 40kGy High voltage 110kV Let's say.

[0119] The resulting foil provides a three-dimensional impression in addition to the visual effect of the imprinted design. Its "porous" structure does not correlate with the various elements of the main design, and its 60° geometric gloss is 1-2°.

[0120] The composite coatings in both addition units are characterized by special additives that improve the bond strength between the individual layers. An additional condition for achieving good bond strength is that the coatings are subjected to prepolymerization (gelatinization) of the coating layers during the preparation of the first matte surface coating. [Explanation of symbols]

[0121] 1 carrier, 2 impression layer, 3 protective layer, 4 first excimer coating layer A, 5 next excimer coating layer C, 6 final excimer coating layer B.

Claims

1. 1. A method for producing a multi-layer matte coated surface on a carrier, comprising: a method for coating the carrier (1) with a coating layer (4) containing a bond strength improving additive, exposing the added coating layer (4) to excimer radiation having a wavelength of 172 nm, and then treating the added coating layer (4) with an electron beam having a dose of 2 to 7 kGy or with equivalent UV radiation; adding at least one other coating layer with the bond strength improving additive to this first layer, and exposing the other at least one other coating layer to excimer radiation having a wavelength of 172 nm and an electron beam having a dose of 2 to 7 kGy or equivalent UV radiation; and if this second layer is the outer or final layer (6), treating its entire surface with an electron beam having a dose of at least 35 kGy or equivalent UV radiation; The method, wherein the bond strength improving additive comprises propoxylated glycerol triacrylate.

2. 2. A method according to claim 1, characterized in that the coating layer (4) is treated with an electron beam having a dose of 2 to 6 kGy.

3. 1. A method of making a furniture article having a multi-layer matte coated surface and a carrier, comprising: and coating the carrier (1) with at least one coating layer (4) containing 5 to 30% by weight of the bonding strength improving additive to produce a carrier (1) coated with a multi-layer matte coating surface obtained by the method of claim 1 or 2, A method characterized in that the three-dimensional effect of the furniture product results from the individual construction of the different layers.

4. 4. The method according to claim 3, characterized in that the carrier (1) is a paper or petroleum-based foil, or a chemical foil, or a wood-based board.

5. 4. The method according to claim 3, characterized in that the carrier (1) comprises an impression layer (2).

6. 4. A method according to claim 3, characterized in that the subsequent layers (4, 6) exhibit different degrees of gloss after being cured to their final degree of polymerization.

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