• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    This invention relates to a multi-layer panel (1) comprising at least one glass plate (3), said multi-layer panel (1) also comprising at least a digitally printed substrate (10) and an adhesive layer (7) comprising said digitally printed substrate (10) and said glass plate (6) together, said digital printing (5) facing said adhesive layer (7). This invention further also relates to a method of manufacturing such a multilayer panel (1), said method comprising at least the steps of providing a digitally printed substrate (10) and a glass plate (6), and applying a layer of glass (6). adhesive layer (7) between said digitally printed substrate (10) and said glass plate (6), said digital printing (5) facing said adhesive layer (7).
    公开号:BE1021708B1
    申请号:E2012/0718
    申请日:2012-10-24
    公开日:2016-01-11
    发明作者:Duffel Antonius Wilhelmus Van；Duffel Bart Van
    申请人:Falco Technologies Bvba；
    IPC主号:
    专利说明:

    MULTI-LAYER PANEL AND
    METHOD FOR MANUFACTURING A MULTI-LAYER PANEL
    This invention relates to a multi-layer panel comprising at least one glass plate. This invention also relates to a method for manufacturing such a multi-layer panel.
    [02] As living standards improve, people pay more and more attention to decorating the inside and outside of windows, doors and outside walls of buildings and vehicles, among other things. Both single and multiple glass can be decorated. The provision of multi-layer glass plates also provides the glass with increased mechanical stability. Multi-layered glass panels also offer the option of applying decorative elements between the various glass layers.
    [03] There is considerable commercial interest in the manufacture of bespoke multi-layer glass panels with encapsulated colored decorations for use in architectural applications and in automobiles.
    [04] Because of its ceramic nature, however, glass is a very challenging substrate for decorating, coating and printing.
    [05] Various methods and approaches have already been described in the patent literature for the manufacture of decorated multilayer panels, in order to circumvent or attempt to solve the difficulty of decorating glass.
    Multilayer glass panels are made, for example, by using decorated films between different glass plates or other types of substrates.
    EP 2 030 778 describes a decorative laminated glass comprising two transparent substrates and an intermediate film containing two adhesive resin layers and between them a base layer on which an ink layer according to a predetermined pattern is printed. The intermediate film is applied between the transparent substrates to be combined with each other.
    US 2004/234735 describes a method and an apparatus for manufacturing an image-bearing laminated material. An image is printed on a polyvinyl butyral intermediate layer using a solvent based ink, paint or pigment system. The interlayer is used to join two sheets of material together to form the laminate.
    In DE 3232238, a laminated glass panel is made from two individual glass panels and a thermoplastic intermediate layer that are joined together. A special decorative effect is obtained by the fact that an individual glass panel is printed with narrow strips of a printable ink arranged parallel to each other on the surface which is connected to the thermoplastic intermediate layer.
    [10] Other patent documents describe decorative laminated safety glass using a decorated foil.
    [11] For example, US 2008/105371 describes a process for producing a decorative glass laminate, comprising a rigid thermoplastic interlayer, the process comprising printing an image on at least one of the surfaces of the interlayers.
    [12] In WO 2005/085371 and WO 2006/050536, the decorative laminated article comprises a thermoplastic intermediate layer on which an image has been applied, the image being printed on the intermediate layer using an inkjet printing process. The image additionally comprises a white pigment on the surface of the thermoplastic intermediate layer.
    [13] EP 1 651 434 describes a decorative glass laminate comprising a rigid intermediate layer on which a printed image has been applied which is printed on at least one of the intermediate layers. Furthermore, a process for manufacturing the decorative glass laminate is also described.
    [14] An alternative to the use of a decorative film is described in EP 1 462 423 which describes decorative multiple glass, showing a texture similar to the surface of a material that differs from glass such as wood or stone without such materials. Use is made in this invention of a double layer of glass between which a layer of paper is arranged which is printed on one side or on both sides, the whole being bonded to each other by a transparent adhesive. As a result, the printed motif, through the glass, has the same appearance as the material displayed.
    [15] Another alternative to a single film or a thermoplastic intermediate layer is to combine multiple films into a composite polymer film that is then laminated between two glass plates.
    [16] US 2006/078716 describes a plastic composite comprising colored images printed on a polymeric carrier film using UV ink. This polymeric carrier film layer can be attached to a polymer film selected from the group consisting of aliphatic polyurethane (aliphatic PU) and ethyl vinyl acetate (EVA). The combined laminate can then optionally be applied between two layers of plasticized polyvinyl butyral (PVB) that form the plastic composite. This plastic composite can then be placed between two glass plates that form the final laminated glass product.
    JP 8157239 discloses a sandwich glass comprising a plastic film from a polycarbonate system that is printed with ink, for example an ink based on chlorinated vinyl acetate, by means of offset printing, whereby a patterned foil provided with the pattern layer is formed. A plastic resin adhesive is applied to both sides of the patterned foil. Glass plates are laminated and bonded to both sides of the plastic resin adhesives, producing a sandwich glass.
    [18] Films are usually sheets of thermoplastic polymers or plastic sheets coated with a thermoplastic or pressure sensitive adhesive. To obtain sufficient adhesion between the film (s) and the glass, the contact must be improved under pressure and heat, which requires energy. Films applied as decoration on the outside of glass are exposed to weathering and wear, which greatly reduces their lifespan.
    [19] Another approach to decorating glass is to apply a glass frit to a glass substrate and bake it in the oven. Glass frit is a glass powder and has the same chemical nature as glass. A number of patent documents describe the application of glass frit or ceramic inks based on glass frit via printing methods such as screen printing or inkjet printing on the glass surface, after which these printed surfaces are baked in the oven, whereby the glass frit is melted on the glass surface.
    [20] For example, WO 2009/147676 describes a process for producing glass that is printed between two glass layers of a two-layer glass plate. This process includes the steps of printing a pattern on a first glass plate using an ink composition containing glass frit particles, inorganic pigment particles and organic polymer binders, pre-baking the pattern at a temperature of 350 to 450 degrees Celsius and then laying a second glass plate on top of the pre-baked pattern on the first glass plate to form a stack. The stack is then baked in the oven at a temperature of at least 575 degrees Celsius. Finally, a plastic spacer is provided between the first and second glass plates to produce a glass laminate.
    [21] The disadvantage of this approach, however, is that baking glass requires energy, special safety measures, and investment. Moreover, heating and cooling of the glass extends the production cycle of the glass panel considerably.
    [22] Yet another approach is described in US 5,891,520. Therein a method is described for decorating and / or labeling glass articles and similar ceramic goods by means of screen printing. This method comprises the following steps: - treating a glass article or the like with a silane-based adhesion promoter; and - applying a non-ceramic screen printing ink directly to the silane-treated glass article by means of screen printing.
    [23] Since screen printing requires a large preparation and adjustment, and requires a large amount of material, a large print volume is required to make decorating glass economically feasible using the above-mentioned method. This method is not suitable for manufacturing a single piece of multi-layer panel.
    [24] There is therefore a need for an improved multi-layer panel with at least one glass panel. Preferably, this improved multi-layer panel has the appearance of glass and has a high-quality decoration that is furthermore protected against wear, scratches, chemicals or dirt, and is shock-resistant. Moreover, it is desirable that the multi-layer panel is easy to clean, strong and light, and that it can be manufactured easily and at a low cost and in an energy-efficient manner. Finally, it is desirable that the improved multi-layer panel is light-fast and acoustically insulating.
    According to a first aspect of the invention there is provided a multi-layer panel comprising at least one glass plate, the multi-layer panel also comprising at least - a digitally printed substrate comprising a digital printing; and - an adhesive layer that glue the digitally printed substrate and the glass plate together; wherein the digital printing is directed to the adhesive layer.
    [26] A major advantage of using digital printing to decorate the substrate is that it is a very flexible and fast means to produce finished printed images since the setup time required to produce an image is minimal, with the cost and the overall lead time of a small series is reduced compared to traditional screen printing operations. Moreover, and in contrast to more traditional printing techniques such as screen printing, there are no intermediate steps between the image file and the print with digital printing. The advantage of this is that single-piece fabrications make economic sense.
    [27] Moreover, by applying digital printing between two layers, this digital printing is protected against abrasion, scratches, chemicals and contamination.
    [28] An inexpensive, shock-resistant, easy-to-clean, strong and light multi-layer panel is also obtained in this way.
    [29] In a first possible embodiment of a multilayer panel according to the invention, said digitally printed substrate comprises a directly digitally printed metal, polyvinyl chloride, polycarbonate, polypropylene, polyethylene, polyurethane or acrylic system. Examples of metal substrates are aluminum, steel and stainless steel. By "directly printed" is meant that no additional coating has to be applied to print the substrate. However, low-energy plastics such as polyethylene and polypropylene require standard pre-treatment, typically a corona treatment, to increase the surface energy of the substrate. Because the adhesion of inks to these substrates is generally better compared to glass, there is less or no adsorption competition with the adhesive, causing no disturbance of the digital printing during the bonding step when an adhesive layer on this digital printing is applied.
    [30] A problem that occurs with direct digitally printed glass is that, when a liquid glass adhesive is applied to this digital printing - this is a very attractive approach to obtaining a multi-layer panel since this results in a very strong multi-layer panel and the use of baking methods with low energy consumption is possible - the molecular components of the adhesive layer will compete with the ink polymer for adsorption on the glass surface and will also wet the cured ink droplets. In other words, this digitally printed layer is not compatible with these liquid glass adhesives. As a result, the ink droplets of the printed layer will come off the glass surface before and during the curing process thereof. At that time, the adhesive layer acts undesirably as a cleaning solvent. This process is called chemical release, resulting in a disruption of digital printing.
    [31] This problem can occur, for example, with the system for the manufacture of laminated artistic stained glass as described in ES 2050610. This describes a system based on glass panels which have figures on one of their surfaces which are imaged by any process are printed. On the side of the surface of the glass panel bearing the figure, a second glass panel is placed, which is transparent, of the same size, and does not bear a figure. The two panels are placed close and parallel with each other, with coincidental contours. The space delimited between the two panels is circumferentially covered to form a closed chamber that is filled with a solidified liquid adhesive of a transparent type. The stained glass thus obtained is thus composed of a layered structure formed by two outer glass panels and an intermediate layer of a solidified transparent adhesive substance.
    [32] This problem is solved by providing a second embodiment of a multi-layer panel according to the invention, wherein said digitally printed substrate: - a glass substrate, - said digital printing directed towards the adhesive layer; and a glass adhesion-promoting layer disposed between said glass substrate and said digital printing, said glass adhesion-promoting layer being adapted to prevent chemical release of said digital printing from said glass substrate when said adhesive layer is applied to said digital printing; includes.
    [33] The glass adhesion promoting layer is specifically chosen to adhere to the glass through both polar physical and chemical bonds and also to the ink of the digital printing.
    [34] In this way a quick and easy solution is obtained for digitally printing glass using standard digital printing equipment, without the problem of chemical release of the digital printing when the liquid adhesive layer is applied to it.
    [35] In a preferred embodiment of a multi-layer panel according to the invention, said glass adhesion promoting layer comprises a molecular adhesion promoting agent, a hybrid organic-inorganic coating and / or a self-assembled single layer.
    [36] More preferably, said glass adhesion promoting layer comprises one or more silane compounds.
    [37] In a favorable embodiment of a multi-layer panel according to the invention, the digital printing is printed using a UV-curable or a thermally-curable ink or an ink that can be sintered by means of xenon flash light or laser.
    [38] UV-curable ink has the advantage that it essentially does not contain any solvent that would otherwise have to evaporate during its curing phase.
    [39] In an advantageous embodiment of a multi-layer panel according to the invention, said digital printing is printed using functional inks comprising an electrically conductive ink, an insulating and / or luminous ink. It is possible to print digitally with these functional inks. These functional inks may be UV-curable, but are not necessarily limited thereto.
    [40] In a preferred embodiment of a multi-layer panel according to the invention, said adhesive layer comprises an adhesive selected from the acrylic type, epoxy type, polyurethane type, silicone type or polyester type.
    [41] In a possible embodiment of a multi-layer panel according to the invention, said multi-layer panel comprises one or more additional glass plates and / or one or more digitally printed substrates which are printed on said digitally printed substrate (substrates) and / or be glued to said additional glass plate (glass plates) by means of an adhesive layer.
    [42] In an advantageous embodiment of a multi-layer panel according to the invention, said adhesive layer comprises a UV-curable or heat-curable adhesive or a two-component adhesive.
    [43] According to a second aspect of the invention, a method is described for manufacturing a multi-layer panel according to the invention as described above, the method comprising at least the following steps: - providing a digitally printed substrate comprising a digital printing and a glass plate; and - applying an adhesive layer between said digitally printed substrate and said glass plate, said digital printing being directed towards the adhesive layer.
    [44] Preferably, applying said adhesive layer between said digitally printed substrate and said glass plate comprises the following steps: - adhering to the outside of said digitally printed substrate and said glass plate a self-adhesive film, the said self-adhesive film is larger than said digitally printed substrate and said glass plate, whereby a part of each of said self-adhesive films does not cover said digitally printed substrate or said glass plate; - applying a liquid adhesive between said digitally printed substrate and said glass plate; - joining said digitally printed substrate and said glass plate, wherein said liquid adhesive is trapped between said digitally printed substrate and said glass plate and at the same time sticking together said parts of both films containing said digitally printed substrate, respectively do not cover said glass plate; and - removing said foil from the formed multi-layer panel.
    [45] When the multi-layer panel according to the invention is a multi-stacked panel comprising more than two substrates that are stuck together, first two layers are glued together by the method as described above, after which a subsequent substrate is glued to the previously glued together substrate, also by using this method. If different substrates of such a multiple-stacked panel are to be provided with a digital printing, then first two substrates are glued together by means of the method as described above and then a digital printing is applied to the respective side thereof, after which a further substrate the two substrates that are already glued together are glued together, again by means of the method as described above. Further substrates are attached in the same manner.
    [46] In an advantageous method according to the invention, said digital printing is applied to said glass adhesion-promoting layer when this layer is wet or half-dry.
    [47] In a preferred method according to the invention, said glass adhesion promoting layer and said digital printing are cured in the same curing step.
    [48] Deposition of a liquid-glass adhesion-promoting layer can be carried out using any known deposition method for depositing liquid coatings such as spraying, plasma deposition such as vacuum or atmospheric plasma deposition, dip coating, roll coating or curtain coating.
    [49] The formation of a digitally printed glass substrate comprises the steps of: - providing a glass substrate; - applying to at least a part of said glass substrate a glass adhesion promoting layer; - applying to at least a part of said glass adhesion promoting layer of a digital printing; and curing said glass adhesion promoting layer and said digital printing, said glass adhesion promoting layer being applied preferably at the time said glass adhesion promoting layer is wet or half dry and preferably said glass adhesion promoting layer adhesion promoting layer and said digital printing are cured in the same curing step, this to provide a quick and easy solution for digital printing of glass, can also be applied only without the need to manufacture a multi-layer panel comprising at least one glass plate.
    The digitally printed glass substrate may also comprise - a glass substrate; - digital printing; and a glass adhesion promoting layer disposed between said glass substrate and said digital printing, said glass adhesion promoting layer preferably comprising a molecular adhesion promoting promoter, a hybrid organic-inorganic coating and / or a self-assembled single layer, and more preferably comprising one or more silane compounds can be applied per se without being present in a multi-layer panel comprising the at least one glass plate.
    [51] It has surprisingly been found that if the glass adhesion-promoting layer is still liquid or more or less liquid when printed on, a firm contact or even partial mutual penetration is possible between the ink and the glass-adhesion promoting layer. Moreover, if the polymerization chemistry of the digital printing ink and the glass adhesion promoter layer are capable of copolymerizing, then the ink and the glass adhesion promoter layer will chemically bond during the curing or sintering step. Consequently, a stronger adhesion is generated between the digital printing ink and the glass surface which helps to avoid chemical release from the digital printing when a liquid adhesive is subsequently applied to the digital printing.
    FIG. 1 illustrates a schematic exploded view of a digitally printed glass substrate that has been pretreated with a glass adhesion promoting layer before digitally printing the glass substrate; FIG. 2 illustrates a schematic exploded view of a multi-layer panel according to the invention, consisting of a directly digitally printed substance such as a metal, acrylic, polyvinyl chloride, polycarbonate, polypropylene, polyethylene or polyurethane substrate, an upper glass plate and an adhesive layer between the digitally printed substrate and the top glass plate; FIG. 3 illustrates a schematic exploded view of a multi-layer panel according to the invention, consisting of a lower digitally printed glass substrate that has been pre-treated with a glass adhesion promoting layer before being digitally printed, an upper glass plate and an adhesive layer between the top of the digitally printed substrate and the rear side of the upper glass plate; FIG. 4 illustrates a schematic exploded view of a multi-layer panel according to the invention, consisting of a lower directly digitally printed substrate, an intermediate digitally printed glass substrate that has been pre-treated with a glass adhesion-promoting layer before being digitally printed and an upper glass plate, an adhesive layer between the top of the lower digitally printed substrate and the back of the intervening digitally printed glass plate and an adhesive layer between the top of the intermediate digitally printed substrate and the back of the upper glass plate; FIG. 5 illustrates a schematic exploded view of a multi-layer panel according to the invention consisting of a lower glass plate, an intermediate substrate of which both the top and the back are directly digitally printed, an upper glass plate, an adhesive layer between the rear of the upper glass plate and the top of the directly digitally printed substrate and the back of the directly digitally printed substrate and the top of the lower glass plate; and [57] Figures 6a to 6d illustrate a schematic view of the successive steps of a method for gluing together a lower digitally printed glass substrate that has been pretreated with a glass adhesion promoting layer before being digitally printed, with an upper glass plate by means of of an adhesive layer.
    Figure 1 shows a digitally printed substrate (10) consisting of - a glass substrate (2); - a digital print (5); and - a glass adhesion promoting layer (4) provided between said glass substrate (2) and said digital printing (5).
    In addition, the glass adhesion promoting layer (4) is adapted to prevent chemical release of the digital printing (5) from the glass substrate (2) when an adhesive layer (7), as shown in Figure 2, on said digital printing ( 5).
    The digital printing (5) is preferably printed using a UV-curable ink. However, a heat-curable ink or an ink that can be sintered using Xenon flash light or laser can also be used.
    [60] The glass adhesion promoting layer (4) preferably comprises a silane compound, although other suitable glass adhesion promoting layers (4) are not excluded.
    [61] An example of a glass adhesion-promoting layer comprising one or more silane compounds is a glass adhesion-promoting promoter comprising a silane or a combination of silanes from the following non-limiting list: methacryloxypropyltrimethoxysilane, acryloxypropyltrimethoxysilane, methacryloxypropyltris (trimethylsiloxy) (trimethylsiloxy) , methacryloxypropyltriethoxysilane, acryloxypropyltriethoxysilane, methacryloxypropyltriisopropoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 5,6-epoxyhexyltrimethoxysilane-3-ethoxy-ethoxy-propane-3-ethoxy-ethoxy-ethoxy-ethyloxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxy-ethoxyl-ethoxyl-ethoxyl-ethoxyl-ethoxyl-ethoxyl-ethoxyl-ethoxyl-ethoxyl-propylene oxide. -glycidoxypropyl) dimethylethoxysilane, (3-glycidoxypropyl) bis (trimethylsiloxy) methylsilane, (3-glycidoxypropyl) trimethoxysilane.
    [62] Another example of a glass adhesion-promoting layer comprising one or more silane compounds is a primer coating composed of - a UV-curing resin or a mixture of UV-curing resins; - one or more radical or photo initiators; - a glass adhesion promoter as specified above; - and optionally other additives to optimize the performance of the primer coating.
    [63] The glass adhesion promoting layer (4) is also preferably UV-curable. For example, a UV-curable sol-gel coating can be used. However, other types of glass adhesion promoting layers (4) are not excluded.
    [64] The digital printing (5) is preferably applied to the glass adhesion promoting layer (4) when the latter is half dry or more preferably when the latter is still wet. The curing, preferably UV curing, of this glass adhesion promoting layer (4) and the digital printing (5) are preferably done in the same step, and more preferably during the digital printing step. UV curing has the advantage that the mechanical stress applied to the multi-layer panel (1) is very limited due to the absence of significant heating.
    [65] Figure 2 shows a multi-layer panel (1) according to the invention, consisting of: - a digitally printed substrate (10) consisting of: • a lower substrate (3) such as a metal, polyvinyl chloride (PVC), polycarbonate, polypropylene (PP), polyethylene (PE), polyurethane (PU) or acrylic substrate; • a digital print (5) printed directly on the substrate (3); - an upper glass plate (6); and - an adhesive layer (7) between the digitally printed substrate (10) and the upper glass plate (6).
    [66] Examples of metal substrates (3) are (anodized) aluminum, steel and stainless steel.
    Figure 3 shows a multi-layer panel (1) according to the invention, consisting of - a lower digitally printed substrate (10) as shown in Figure 1; - an upper glass surface (6); and - an adhesive layer (7) between the lower digitally printed substrate (10) and the upper glass plate (6).
    [68] Figure 4 shows an example of a three-layered multi-stacked panel consisting of - a lower digitally printed substrate (10) consisting of • a lower substrate (3) such as a metal, polyvinyl chloride (PVC), polycarbonate, polypropylene ( PP), polyethylene (PE), polyurethane (PU) or acrylic substrate; • a digital print (5) applied directly to the substrate (3); - an intermediate digitally printed substrate (10) as shown in Figure 1; - an upper glass plate (6); and - an adhesive layer (7) between the digitally printed substrate (10) and the intervening digitally printed substrate (10); and • the intermediate digitally printed substrate (10) and the top glass plate (6).
    Figure 5 shows another example of a three-layered multi-stacked panel consisting of - a lower glass plate (6); - an intermediate digitally printed substrate (10) consisting of • a lower substrate (3) such as a metal, polyvinyl chloride (PVC), polycarbonate, polypropylene (PP), polyethylene (PE), polyurethane (PU) or acrylic substrate; • a direct digitally printed print (5) on both the rear and front of this substrate (3); - an upper glass plate (6); and - an adhesive layer (7) between the intermediate digitally printed substrate (10) and the lower glass plate (6); and • the intermediate digitally printed substrate (10) and the upper glass plate (6).
    It is noted that a multi-stacked panel (1) according to the invention can be composed of any greater number than two layers and can consist of any desired possible combination of one or more digitally printed substrates (10), which either include a substrate (3) such as a metal, polyvinyl chloride (PVC), polycarbonate, polypropylene (PE), polyethylene (PE), polyurethane (PU) or acrylic substrate that can be directly printed, possibly pre-treated with a necessary standard pre-treatment not being an extra coating, or consisting of a glass substrate (2) that must be pre-treated with an additional glass adhesion-promoting layer (4) before being digitally printed, and one or more glass plates (6).
    Figures 6a - 6d show the different steps of a preferred method for applying an adhesive layer (7) between a lower digitally printed substrate (10) as shown in Figure 1 and an upper glass plate (6), namely. figure 6a: adhering to the outside of the digitally printed substrate (10) and to the glass plate (6) of a self-adhesive film (8), the self-adhesive film (8) being larger than the digitally printed substrate (10) and the glass plate (6) whereby a part of each self-adhesive film (8) does not cover the digitally printed substrate (10) and the glass plate (6), - figure 6b: applying a liquid adhesive (7a) between the digitally printed substrate ( 10) and the glass plate (6); figure 6c: bringing together the digitally printed substrate (10) and the glass plate (6), wherein the liquid adhesive (7a) is trapped between the digitally printed substrate (10) and the glass plate (6) and, at the same time, sticking together the parts (8a) of both films (8) that do not cover the digitally printed substrate (10) and the glass plate (6); and - figure 6d: removing the foil (8) from the formed multi-layer panel (1).
    [72] The same steps are performed for applying an adhesive layer (7) between the mutual printed substrates (10) and the mutual glass plates (6).
    [73] For each layer to be added to form a multi-stacked panel (1) comprising more than two layers, the steps described above are repeated until the desired multi-stacked panel (1) is obtained.
    Although this invention has been illustrated by reference to specific embodiments, it will be apparent to those skilled in the art that the invention is not limited to the details of the aforementioned illustrative embodiments, and that this invention may be practiced by various modifications and modifications thereto. without departing from the scope of the invention. These embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being determined by the appended claims rather than by the aforementioned description, and all modifications falling within the meaning and equivalence ranges of the claims. , are therefore intended to be contained in it. In other words, it is an object that all possible adaptations, variations or equivalents that fall within the scope of the underlying basic principles and whose essential properties are claimed in the claims of this patent application are contained therein. In addition, the reader of this patent application should understand that the words "comprising" or "include" exclude other elements or steps, the words "a" do not exclude a greater number, and that a single element, such as a computer system, a processor, or another integrated unit fulfills the functions of various means mentioned in the claims. No reference sign in the claims may be interpreted as limiting the respective claims. The terms "first", "second", third "," a "," b "," c ", and the like, when used in the description or in the claims, are used to distinguish between similar elements or steps and do not necessarily describe a sequential or chronological order. It is understood that the terms thus used are interchangeable under the appropriate circumstances and that embodiments of the invention are capable of operating in accordance with this invention in other sequences, or in orientations that differ from one or more of the above described or illustrated orders or orientations.
    权利要求:
    Claims (15)
    [1]
    A multi-layer panel (1) comprising at least one glass plate (3), characterized in that the multi-layer panel (1) also comprises at least - a digitally printed substrate (10) comprising a digital printing (5); and - an adhesive layer (7) which glue the digitally printed substrate (10) and the glass plate (6) together, wherein the digital printing (5) faces the adhesive layer (7).
    [2]
    A multi-layer panel (1) according to claim 1, characterized in that said digitally printed substrate (10) comprises a directly digitally printed metal, polyvinyl chloride, polycarbonate, polypropylene, polyethylene, polyurethane or acrylic substrate (3).
    [3]
    Multi-layer panel (1) according to claim 1 or 2, characterized in that said digitally printed substrate (10) - a glass substrate (2), - said digital printing (5) facing the adhesive layer (7) is targeted; and - a glass adhesion-promoting layer (4) disposed between said glass substrate (2) and said digital printing (5), said glass adhesion-promoting layer (4) being adapted to chemically release said digital printing (5) ) of said glass substrate (2) when said adhesive layer (7) is applied to said digital printing (5); includes.
    [4]
    The multi-layer panel (1) according to any one of claims 1 to 3, characterized in that said glass adhesion-promoting layer (4) comprises a molecular adhesion-promoting promoter, a hybrid organic-inorganic coating and / or a self-assembled single layer.
    [5]
    The multi-layer panel (1) according to claim 4, characterized in that said glass adhesion-promoting layer (4) comprises one or more silane compounds.
    [6]
    Multi-layer panel (1), according to one of claims 1 to 5, characterized in that said digital printing (5) is printed using a UV-curable or a thermally-curable ink or an ink that can be sintered by Xenon flash light or laser.
    [7]
    The multi-layer panel (1) according to one of claims 1 to 6, characterized in that said digital printing (5) is printed using a functional ink comprising an electrically conductive ink, an insulating and / or a luminous ink.
    [8]
    Multilayer panel (1) according to one of claims 1 to 7, characterized in that said adhesive layer (7) comprises an adhesive selected from the acrylic type, epoxy type, polyurethane type, silicone type or polyester type.
    [9]
    Multilayer panel (1) according to one of claims 1 to 8, characterized in that said multilayer panel (1) comprises one or more additional glass sheets (6) and / or one or more digitally printed substrates (10) that are glued to said digitally printed substrate (s) (10) and / or said additional glass plate (s) (6) by means of an adhesive layer (7).
    [10]
    The multi-layer panel (1) according to one of claims 1 to 9, characterized in that said adhesive layer (7) comprises an UV or heat-curable adhesive, or a two-component adhesive.
    [11]
    A method for manufacturing a multi-layer panel (1) according to any one of claims 1 to 10, characterized in that said method comprises at least the following steps: - providing a digitally printed substrate (10) comprising a digital printing (5) and a glass plate (6); and - applying an adhesive layer (7) between said digitally printed substrate and the glass plate (6), said digital printing being directed towards the adhesive layer (7).
    [12]
    A method for manufacturing a multi-layer panel (1) according to claim 11, characterized in that the application of said adhesive layer (7) between said digitally printed substrate (10) and said glass plate (6) has the following steps comprises: - adhering to the outside of said digitally printed substrate (10) and said glass plate (6) a self-adhesive film (8), said self-adhesive film (8) being larger than said digitally printed substrate (8) 10) and said glass plate (6), whereby a part of each of said self-adhesive films (8) does not cover said digitally printed substrate (10) or said glass plate (6); - applying a liquid adhesive (7a) between said digitally printed substrate (10) and said glass plate (6); - bringing said digitally printed substrate (10) and said glass plate (6) together, said liquid adhesive (7a) being trapped between said digitally printed substrate (10) and said glass plate (6) and simultaneously sticking together of said parts of both films (8a) which do not cover said digitally printed substrate (10) or said glass plate (6); and - removing said foil (8) from the formed multi-layer panel (1),
    [13]
    A method for manufacturing a multi-layer panel (1) according to claim 11 or 12, characterized in that forming a digitally printed glass substrate (10) comprises the following steps: - providing a glass substrate (2) ); - applying to at least a part of said glass substrate (2) a glass adhesion promoting layer (4); - applying a digital print (5) on at least a part of said glass adhesion promoting layer (4); said glass adhesion-promoting layer (4) being adapted to prevent chemical release of said digital printing (5) from said glass substrate (2) when said adhesive layer (7) is applied to said digital printing (5) ); and - curing said glass adhesion promoting layer (4) and said digital printing (5).
    [14]
    A method for manufacturing a multi-layer panel (1) according to claim 13, characterized in that said digital printing (5) is applied to said glass adhesion-promoting layer (4) at the time when said glass adhesion-promoting layer layer (4) is wet or half dry.
    [15]
    A method for manufacturing a multi-layer panel (1) according to claim 13 or 14, characterized in that said glass adhesion-promoting layer (4) and said digital printing (5) are cured in the same curing step.
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    公开号 | 公开日
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    WO2014048589A1|2014-04-03|
    BR112015006291A2|2017-07-04|
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    CN104661978A|2015-05-27|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP121859433|2012-09-25|
    EP12185943.3A|EP2711346A1|2012-09-25|2012-09-25|Multi-layered panel and method for manufacturing a multi-layered panel|
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