EP2983922A1 - Method for the manufacture of digitally printed substrates - Google Patents
Method for the manufacture of digitally printed substratesInfo
- Publication number
- EP2983922A1 EP2983922A1 EP14716795.1A EP14716795A EP2983922A1 EP 2983922 A1 EP2983922 A1 EP 2983922A1 EP 14716795 A EP14716795 A EP 14716795A EP 2983922 A1 EP2983922 A1 EP 2983922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- overlay
- reactive composition
- basic layer
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 51
- 238000007639 printing Methods 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 229920002522 Wood fibre Polymers 0.000 claims abstract description 5
- 239000002557 mineral fiber Substances 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims abstract description 5
- 239000002025 wood fiber Substances 0.000 claims abstract description 5
- 239000007859 condensation product Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- 239000004922 lacquer Substances 0.000 claims description 6
- 239000000123 paper Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000004848 polyfunctional curative Substances 0.000 claims description 4
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004640 Melamine resin Substances 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 229920001002 functional polymer Polymers 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 239000000976 ink Substances 0.000 description 31
- 239000002245 particle Substances 0.000 description 7
- 239000011094 fiberboard Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000032798 delamination Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229920003180 amino resin Polymers 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003139 biocide Substances 0.000 description 2
- 239000006172 buffering agent Substances 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 125000002348 vinylic group Chemical group 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- -1 defoamers Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
- B41M5/0017—Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0076—Digital printing on surfaces other than ordinary paper on wooden surfaces, leather, linoleum, skin, or flowers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
Definitions
- the present invention concerns a method for manufacturing decorative substrates, notably panels and boards, in particular based on wood fibers or mineral fibers such as wood particles boards, MDF (Medium Density Fiberboard) or HDF (High Density Fiberboard) substrates on which a decor is formed by digital printing.
- wood fibers or mineral fibers such as wood particles boards, MDF (Medium Density Fiberboard) or HDF (High Density Fiberboard) substrates on which a decor is formed by digital printing.
- the invention further relates to substrates such as panels and boards, notably useful as flooring, that are obtainable by such methods.
- Digital printing refers to methods of printing from a digital based image directly to the substrate. It usually refers to professional printing where small run jobs from desktop publishing and other digital sources are printed using large format and/or high volume laser or inkjet printers. Digital printing has a higher cost per printed object than traditional offset printing methods but this price is usually offset by the cost saving achieved by avoiding all the technical steps in between needed to make printing plates. It also allows for on demand printing, short turn around, and even a modification of the image with each printed copy. The savings in labour and the increased capability of digital presses means digital printing is reaching a point where it could match or supersede offset printing technology's ability to produce larger print runs of several thousand copies at a low price.
- the decor is generally still printed on a separate support of paper or fleece which is applied onto the substrate.
- a basic layer may be applied in order to ensure sufficient adherence of the applied inks, such basic layers may affect the printing quality.
- a porous layer may absorb the ink leading to insufficient covering while a non porous basic layer may lead to their coalescence and affect color quality.
- the use of a separate support for printing however makes the process more costly and complex.
- the international patent application WO 2010/084386 thus proposes to use several printing devices and to expose the print portion deposited by one printing unit to forced drying before activating the following printing unit. Such process is expensive as it requires special equipment. Further, the quality of the decor depends on the precision of the printing unit alignment.
- the technical problem underlying the present invention is thus to provide a method for the manufacture of substrates comprising a decor formed directly on the substrate by digital printing which overcomes one or more of the above indicated drawbacks.
- the invention aims to provide a method for the manufacture of such substrates which allows for a good image quality.
- the invention aims to provide such a method which does not require the procurement of special equipment.
- the invention aims to provide such a method which yields substrates which show an improved resistance to delamination under stress.
- the invention resides in particular in the finding that a basic layer coating made using a liquid reactive composition as specified below forms, after evaporation of volatile components such as solvents, a coating with a porosity such that any condensation products such as water formed later on, upon curing of the ink or the subsequent layers may be adsorbed without forming bubbles which could impair the print quality and/or the cohesion between the different layers, thus acting as an appropriate primer for this application. Finally, after curing, the composition reinforces cohesion between the decor and the substrate, thus acting as an adhesive and preventing delamination under stress.
- the invention thus concerns a method for the manufacture of wood fiber or mineral fiber based decorative substrates, comprising the steps of:
- step (d) and (e) drying the reactive composition coated onto the substrate so as to form a basic layer having a permeability such that it may adsorb and release any condensation products formed during step (d) and (e); c) digitally printing a decor onto the basic layer using a liquid ink ;
- the substrates may be in particular panels or boards and more specifically wood particles boards such as MDF or HDF panels or mineral fiber boards such as calcium silicate boards or fiber cement boards.
- the liquid reactive composition may be formulated as a one-component composition or a two-component composition.
- the liquid reactive composition may be water-based or may contain organic solvents.
- liquid reactive composition is a two- component composition.
- the first component of such a two-component composition may comprise amine-, hydroxy- or carboxy-functionalized acrylates, polyester, polyether polyols or vinylic polymers.
- the second component of such a two-component composition may comprise isocyanate and/or aziridine hardeners.
- the liquid reactive composition is water based.
- the reactive composition preferably has a viscosity in the range from 1 to 3 Pa s.
- the reactive composition is applied in step (a) using a roller, a jetting device or a spraying device.
- Step (b) may be carried out notably by heating the coated substrate to a temperature of 50 to 80 °C.
- step (c) is carried out using water-based ink.
- the digital printing in step (c) is carried out using a Drop-on-Demand (DOD) inkjet system.
- DOD Drop-on-Demand
- Step (d) may be carried out by heating the substrate having the digitally printed decor printed thereon to a temperature of 70 to 250 °C, preferably for a period of 2 to 30 seconds.
- the overlay applied in step (e) is transparent.
- it is in the form of a melamine resin or a melamine sheet or paper.
- step (e) is carried out by pressing at a temperature in the range of 100 to 300 ' ⁇ , with a pressure comprised between 20 to 60 kg/cm 2 and/or for a period of 2 to 30 seconds.
- the method of the invention may also comprise further the step of providing the back side of the panel with a balance paper or a layer of lacquer.
- the invention also concerns a decorative floor panel obtainable and obtained by a method as indicated above.
- the method according to the invention will be described more in details below.
- the method of the invention aims to manufacture wood fiber based decorative substrates, notably for use as flooring.
- the substrates used within this process can notably be high density fiberboards
- the substrates used in this process may alternatively be based on massive, veneer, plywood, particle or MDF boards.
- the printed fiberboards obtained in the process are cut to form a final floor panel that preferably has a surface of less than 0.5 m 2 , or of even less than 0.3 m 2 .
- the thickness of such floor panels may vary between 4 and 25 mm, or still better between 6 and 15 mm.
- the surface of the substrates Prior to applying the method according to the invention, the surface of the substrates may be filled with a material layer comprising a filler in order to obtain an even surface.
- step (a) of the method according to the invention the substrate is coated with a liquid reactive composition so as to form a basic layer.
- the liquid reactive composition preferably used within the method of the invention is a two-component system, in particular a water-based two-component system.
- the first component of the two-component composition may include OH functionalized acrylates, polyester, polyether polyols or vinylic polymers.
- the second component of the two-component composition may include isocyanate or aziridine hardeners.
- the reactive composition typically has a content in active ingredient comprised between 50 and 70 % by weight.
- the pH of the reactive composition, with the two components mixed is typically in the range of 6 to 10.5. In some embodiments, the pH is in the range of 7.0 to 9.9.
- a pH adjuster e.g., acids or bases
- the pH can be adjusted using various bases or buffering agents. Suitable bases or buffering agents include, for example, borax, sodium hydroxide, alkali phosphates, alkali silicates, alkali carbonates, ammonia, and amines such as diethanolamine or triethanolamine.
- the individual components can also contain other ingredients such as polyvalent metal compounds, alkali-soluble resins, solvents, waxes, reactive or non-reactive acrylic compositions, reactive or non-reactive polyester compositions (such as polyester polyols), surfactants, permanent and fugitive plasticizers, defoamers, wetting agents, and biocides. Additionally or alternatively, any optional ingredients may be added after the reactive composition has been formed by the mixing of the two individual components.
- the polyvalent metal compound provides crosslinking of the polymers in the film and increases the detergent resistance of the finish. Plasticizers or coalescing agents can be added to lower the temperature of film formation. Surfactants can be added to aid leveling and wetting. Solvents can be added to aid the coatability of the reactive composition. Biocides help minimize the formation of molds or mildew in the coating. Antifoamers and defoamers minimize the formation of bubbles in the coating.
- Water-based two component reactive compositions useful in the method according to the invention are available on the market, for example from Friedrich Klumpp GmbH, Germany, under the trade name Hydroplast® Printing Sealer.
- the two components may be mixed using conventional means such as pneumatic hand-held agitator.
- the reactive composition can be applied to the substrate.
- the reactive composition is formulated as a liquid. It may be applied using conventional means such as one or more rollers, and/or jetting or spraying devices.
- the reactive liquid composition typically has a viscosity of 1 - 3 Pa-s, and usually 1 ,5-2,5 Pa-s.
- the composition is usually easy to apply, and readily flows to even out low spots.
- the reactive composition typically provides a thin, easily managed coating.
- the reactive composition coated onto the substrate is dried in step (b) so as to evaporate any volatile components.
- volatile components may be in particular any solvents such as water or organic solvents.
- the drying in step (b) is merely a physical process and any chemical curing of the reactive composition should be avoided as much as possible.
- the drying can be effected under ambient conditions or optionally be accelerated using conventional means such as a heater or a fan.
- the time required for the basic layer to dry depends on a number of factors such as the specific individual components used in the composition, its water content, the coating thickness, and of course, temperature of the surface, temperature and humidity of the surrounding air, and the amount of air circulation in the immediate area of the applied reactive composition.
- any heat applied during the drying step be moderate, that is lower than ⁇ ' ⁇ , and better lower than ⁇ ' ⁇ , so as to prevent or reduce any curing of the basic layer at this stage.
- the thickness of the coated reactive composition after drying is usually comprised between 25 and 150 ⁇ , preferably between 50 to 100 ⁇ .
- the basic layer formed can be digitally printed on.
- the basic layer preferably has a permeability which allows the adsorption and the release of products such as water that may be formed subsequently, notably upon curing of the overlay.
- the dried basic layer has a good affinity towards most inks, notably water-based inks, and therefore ensures good adhesion of the ink. Further, it has a porosity which ensures that the ink is not absorbed in notable quantities while still preventing the drops from coalescing.
- step (c) the substrate coated with a basic layer is submitted to digital printing to form the decor.
- the printed decor represents a wood pattern.
- Other patterns such as stone patterns or fantasy patterns are however also possible.
- digital printing is very versatile, any pattern may be printed, even for small quantities and within short time and without requiring an exterior provider such as a printing company.
- the dried reactive composition provides a particularly good adherence for water- based inks. Water-based inks are also less expensive than solvent-based inks. Water- based inks are thus preferred for said digital printing. However, solvent-based inks are not excluded.
- said digital printing techniques are of the type which can deposit ink droplets in a point-wise manner, such as this is the case, for example, with Drop-on- Demand (DOD) inkjet systems.
- DOD Drop-on- Demand
- the substrate has during printing a speed of more than 30 m/min and better of more than 80 m/min or in particular up to 150 m/min.
- the substrate is standing still and the printhead of the inkjet system are passing over the substrate.
- step (d) the ink forming the printed decor is dried or cured. Drying of the ink may be effected under ambient conditions or optionally be accelerated using conventional means such as a heater or a fan. The time required for the ink to dry depends on a number of factors such as the composition of the ink, its water content, the drop size, and of course, temperature of the surface, temperature and humidity of the surrounding air, and the amount of air circulation in the immediate area of the printed decor.
- the suitable temperature range for drying or curing the ink may vary with the ink used. However, generally, a temperature in the range of 70 to 250 °C is generally appropriate. A heating for a period comprised between 2 to 30 seconds is generally sufficient to induce the drying and the degree of cross-linking required.
- the ink may also be dried at ambient conditions and ink curing may be effected during step (e) where the overlay is applied at a temperature suitable for the curing of the basic layer and of the overlay.
- step (e) the printed substrate is covered with an overlay or finishing layer at a temperature which ensures curing of the overlay, as well as possibly of the ink.
- the heat also cures the basic layer, essentially by way of cross-linking reactions of the remaining reactive groups in the basic layer.
- the conditions required to ensure curing of the basic layer and of the overlay include in particular the temperature range, duration and pressure. Suitable temperature range, duration and pressure for curing the reactive composition and the overlay may vary as they are function notably of the specific polymer and hardener used. However, generally, a temperature in the range of 100 to 300 ⁇ €, preferably 120 ⁇ € to 250 °C is appropriate. A heating for a period comprised between 2 seconds to 10 minutes, preferably 2 to 30 seconds is generally sufficient to induce the degree of cross-linking required. Further, a pressure of 20 to 60 kg/cm 2 is preferred.
- the curing confers to the basic layer novel properties.
- it provides the layer with durable elastic and adhesive properties. Therefore, the basic layer may contribute to ensure the mechanical stability of the substrate.
- the adhesive properties of the cured basic layer enforce the cohesion between the different layers of the panel and thereby reduce the risk of delamination of the substrate when submitted to exterior forces.
- the basic layer has a permeability with regard to liquids, notably water, which allows the diffusion of products such as water formed during curing. Thereby, the accumulation of such products in form of bubbles may be prevented, and the cohesion between the overlay and the printed substrate is improved.
- the overlay is based on an amino resin, such as a melamine provided in the form of a resin or sheet.
- an amino resin such as a melamine provided in the form of a resin or sheet.
- translucent or transparent lacquers may also be used.
- the overlay is coated onto the board in liquid form, for example, by means of one or more rollers.
- the overlay is coated onto the board by using melamine sheets.
- a press operation may be applied.
- a structure can be obtained at the surface of the respective board.
- the pressed design is combined with the printing operation in order to obtained an Embossed in Register (EIR) design.
- EIR Embossed in Register
- Said overlay further may also comprise hard particles, such as aluminum oxide, by which an improved wear resistance is obtained at the surface of the final substrate.
- This overlay shows an improved abrasion resistance than a lacquer.
- such particles are provided on the still wet overlay.
- the final thickness of the overlay is generally comprised between 2 and 100, preferably between 5 and 50 ⁇ .
- the back of the substrate may be protected by a balance paper or by a layer of lacquer.
- the invention preferably is directed to the manufacture of substrates such as floor panels or boards and/or panels or boards of which said substrate material comprises or substantially consists of wood particles boards, MDF or HDF material.
- the method according to the invention may also comprise the step of forming profiled edge regions at the panels; such profiled edge regions preferably comprise coupling means allowing the interconnection of two or more of such floor panels at their edges.
- the invention further relates to a substrate, notably a floor panel or board, which is obtained by means of the method according to the invention described above.
- Figure 1 schematically represents a substrate manufactured using a preferred embodiment of the method according to the invention.
- a panel 1 is manufactured as follows.
- a substrate 2 made of a high-density fiberboard (HDF) is coated on the top side with a reactive composition such as Hydroplast® Printing Sealer (manufactured and sold by Friedrich Klumpp GmbH, Germany) which forms a basic layer 3. More specifically, the two components are mixed in a ratio of 95:5 and then applied in three application steps onto the substrate 2 by a suitable means, for instance by way of a roller. After drying each applied layer for 1 minute at 70 q C, the basic layer 3 has a preferred thickness of 20 to 40 ⁇ .
- a reactive composition such as Hydroplast® Printing Sealer (manufactured and sold by Friedrich Klumpp GmbH, Germany) which forms a basic layer 3. More specifically, the two components are mixed in a ratio of 95:5 and then applied in three application steps onto the substrate 2 by a suitable means, for instance by way of a roller. After drying each applied layer for 1 minute at 70 q C, the basic layer 3 has a preferred thickness of 20 to 40 ⁇ .
- the substrate 2 thus coated with a basic layer 3 is then provided with a decor 4 using digital printing and water-based ink, using for instance a Drop-on-Demand (DOD) inkjet system.
- DOD Drop-on-Demand
- the specific properties of the basic layer 3 improve adherence of the ink on the substrate 2 while preventing excessive absorbing or on the contrary coalescence of the ink drops forming the decor 4.
- the panel 1 After printing the decor 4, the panel 1 is introduced into an oven and heated to a temperature of 70 to 250 ' ⁇ , for a period of 2 to 30 seconds in view of drying and/or curing the ink drops forming the decor 4.
- the decor applied onto the panel 1 is protected by application of an overlay 5, notably based on an amino resin, in particular a melamine resin.
- an overlay 5 notably based on an amino resin, in particular a melamine resin.
- Such resin may be coated onto the panel 1 in liquid form, notably by means of one or more rollers.
- the overlay is provided onto the panel 1 in solid form, notably by means of one or more sheets.
- the dimensions of the overlay sheet are chosen according to the dimensions of the panel. As an example, the overlay sheet has a length of 2620 mm, a width of 2070 mm and a grammage of 150 gr/m 2 .
- the overlay After drying, if a resin is used, the overlay is submitted to a press operation under a pressure of about 60 kg/cm 2 at a temperature of between 100 and 300 °C for a period of 10 seconds.
- This step induces a curing of the basic layer 3 and the overlay 5 by cross- linking of the polymers.
- the water based ink may also be cured during this step.
- the basic layer 3 After curing, the basic layer 3 has notable adhesive properties while however maintaining its elasticity and flexibility. Thereby, cohesion between the different layers of the panel 1 is reinforced and the risk of delamination, notably under stress, is reduced.
- the final thickness of the overlay 5 is generally comprised between 2 and 100, preferably between 5 and 50 ⁇ .
- profiled edge regions may be formed at the panels, either before or after applying the process of the invention.
- the back of the panel may further be protected by application of a suitable protection layer 6 such as a balance paper or of a suitable lacquer.
- a suitable protection layer 6 such as a balance paper or of a suitable lacquer.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Paper (AREA)
- Floor Finish (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI201431347T SI2983922T1 (en) | 2013-04-09 | 2014-04-08 | Method for the manufacture of digitally printed substrates |
PL14716795T PL2983922T3 (en) | 2013-04-09 | 2014-04-08 | Method for the manufacture of digitally printed substrates |
EP14716795.1A EP2983922B1 (en) | 2013-04-09 | 2014-04-08 | Method for the manufacture of digitally printed substrates |
HRP20191575 HRP20191575T1 (en) | 2013-04-09 | 2019-09-02 | Method for the manufacture of digitally printed substrates |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13305458.5A EP2789476A1 (en) | 2013-04-09 | 2013-04-09 | Method for the manufacture of digitally printed substrates |
EP14716795.1A EP2983922B1 (en) | 2013-04-09 | 2014-04-08 | Method for the manufacture of digitally printed substrates |
PCT/EP2014/057084 WO2014166961A1 (en) | 2013-04-09 | 2014-04-08 | Method for the manufacture of digitally printed substrates |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2983922A1 true EP2983922A1 (en) | 2016-02-17 |
EP2983922B1 EP2983922B1 (en) | 2019-06-12 |
Family
ID=48326220
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13305458.5A Withdrawn EP2789476A1 (en) | 2013-04-09 | 2013-04-09 | Method for the manufacture of digitally printed substrates |
EP14716795.1A Active EP2983922B1 (en) | 2013-04-09 | 2014-04-08 | Method for the manufacture of digitally printed substrates |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13305458.5A Withdrawn EP2789476A1 (en) | 2013-04-09 | 2013-04-09 | Method for the manufacture of digitally printed substrates |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP2789476A1 (en) |
DK (1) | DK2983922T3 (en) |
ES (1) | ES2744807T3 (en) |
HR (1) | HRP20191575T1 (en) |
PL (1) | PL2983922T3 (en) |
PT (1) | PT2983922T (en) |
SI (1) | SI2983922T1 (en) |
WO (1) | WO2014166961A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1021674B1 (en) * | 2013-04-12 | 2016-01-05 | Unilin Bvba | METHOD FOR MANUFACTURING PANALS AND PANEL OBTAINED HEREBY |
US9725911B2 (en) | 2014-08-18 | 2017-08-08 | Congoleum Corporation | Resilient articles and methods of manufacturing thereof |
RU2711683C2 (en) * | 2015-03-31 | 2020-01-21 | Таркетт Гдл С.А. | Mineral synthetic surface coating element |
ES2929707T3 (en) * | 2015-10-19 | 2022-12-01 | Tarkett Gdl Sa | Procedure for the manufacture of embossed and digitally printed substrates |
WO2020047350A1 (en) | 2018-08-30 | 2020-03-05 | Interface, Inc. | Digital printing for flooring and decorative structures |
CN109941026B (en) * | 2019-04-04 | 2023-05-16 | 谭宏伟 | Floor surface digital printing archaizing processing technology |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5962574A (en) * | 1997-07-25 | 1999-10-05 | Bee Chemical Company | Wet-on-wet primer with low film build U.V. light protection |
US6720042B2 (en) * | 2001-04-18 | 2004-04-13 | 3M Innovative Properties Company | Primed substrates comprising radiation cured ink jetted images |
US20040086678A1 (en) * | 2002-11-01 | 2004-05-06 | Chen Hao A. | Surface covering panel |
DE202006004493U1 (en) * | 2006-03-22 | 2006-06-08 | Fichtner, Renate | Decorative coated fire protection board |
JP4903618B2 (en) * | 2006-09-25 | 2012-03-28 | 富士フイルム株式会社 | Inkjet recording method and inkjet recording apparatus |
BE1018630A5 (en) | 2009-01-20 | 2011-05-03 | Flooring Ind Ltd Sarl | METHODS FOR MANUFACTURING PANELS AND PANEL OBTAINED HEREBY |
-
2013
- 2013-04-09 EP EP13305458.5A patent/EP2789476A1/en not_active Withdrawn
-
2014
- 2014-04-08 DK DK14716795.1T patent/DK2983922T3/en active
- 2014-04-08 ES ES14716795T patent/ES2744807T3/en active Active
- 2014-04-08 PL PL14716795T patent/PL2983922T3/en unknown
- 2014-04-08 PT PT14716795T patent/PT2983922T/en unknown
- 2014-04-08 WO PCT/EP2014/057084 patent/WO2014166961A1/en active Application Filing
- 2014-04-08 SI SI201431347T patent/SI2983922T1/en unknown
- 2014-04-08 EP EP14716795.1A patent/EP2983922B1/en active Active
-
2019
- 2019-09-02 HR HRP20191575 patent/HRP20191575T1/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2014166961A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2744807T3 (en) | 2020-02-26 |
EP2789476A1 (en) | 2014-10-15 |
PL2983922T3 (en) | 2020-01-31 |
HRP20191575T1 (en) | 2019-11-29 |
SI2983922T1 (en) | 2019-10-30 |
WO2014166961A1 (en) | 2014-10-16 |
EP2983922B1 (en) | 2019-06-12 |
PT2983922T (en) | 2019-09-26 |
DK2983922T3 (en) | 2019-09-09 |
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