WO2019098155A1 - Stratifié, procédé de fabrication de stratifié et dispositif de fabrication de stratifié - Google Patents

Stratifié, procédé de fabrication de stratifié et dispositif de fabrication de stratifié Download PDF

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Publication number
WO2019098155A1
WO2019098155A1 PCT/JP2018/041836 JP2018041836W WO2019098155A1 WO 2019098155 A1 WO2019098155 A1 WO 2019098155A1 JP 2018041836 W JP2018041836 W JP 2018041836W WO 2019098155 A1 WO2019098155 A1 WO 2019098155A1
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WIPO (PCT)
Prior art keywords
resin
base sheet
laminate
decorative base
degrees
Prior art date
Application number
PCT/JP2018/041836
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English (en)
Inventor
Yoshiki Yanagawa
Original Assignee
Ricoh Company, Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2018185369A external-priority patent/JP2020023141A/ja
Application filed by Ricoh Company, Ltd. filed Critical Ricoh Company, Ltd.
Priority to EP18816269.7A priority Critical patent/EP3710246A1/fr
Priority to US16/640,095 priority patent/US20210129516A1/en
Priority to CN201880073712.2A priority patent/CN111433024A/zh
Publication of WO2019098155A1 publication Critical patent/WO2019098155A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/24—Layered products comprising a layer of synthetic resin characterised by the use of special additives using solvents or swelling agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/26—Layered products comprising a layer of synthetic resin characterised by the use of special additives using curing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/08—Coating on the layer surface on wood layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/12—Coating on the layer surface on paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Definitions

  • the present disclosure relates to a laminate, a method of manufacturing a laminate, and a device for manufacturing a laminate.
  • Low-pressure melamine decorative boards and high-pressure melamine decorative boards are known as decorative boards used for wall materials and floor materials.
  • Low-pressure melamine decorative boards are manufactured by, for example, laminating substrates such as decorative base sheets and medium density fiberboards (MDF) which are impregnated with a melamine resin and adhering to each other via the melamine resin upon application of heat and pressure.
  • High-pressure melamine decorative boards are manufactured by, for example, laminating a decorative base sheet impregnated with a melamine resin, a core base sheet impregnated with a phenolic resin, etc. followed by applying heat and pressure to obtain a laminar object, and gluing the laminar object to a substrate with an adhesive.
  • Designability of the decorative base sheet used for these decorative boards is known to be controlled by a method such as gravure printing, flexographic printing, and offset printing. Also, unlike the above-described printing methods using plates, technologies of inkjet printing is also known to enable a small quantity of printing.
  • a technology is disclosed in WO 2014/084280, which includes printing on a decorative base sheet by inkjet method to obtain printed matter and impregnating the printed matter with a melamine resin-impregnating liquid to produce a decorative board.
  • JP-2005-1146-A1 A technology is disclosed in JP-2005-1146-A1, which includes bearing a thermocurable resin on a decorative sheet, heating the thermocurable resin to remove an organic solvent and water, and forming a print layer by inkjet printing to produce a decorative board.
  • JP-2015-86373-A1 A technology is disclosed in JP-2015-86373-A1, which includes forming a primer layer on the surface of a decorative material base sheet containing a melamine resin and applying a polymerizable ink reactionable with the primer layer by inkjet printing to produce a decorative material.
  • the present disclosure is to provide a laminate having a high interlayer adhesiveness.
  • a laminate includes a substrate, a decorative base sheet, a print layer containing an alcohol having a boiling point of 180 degrees C or higher, and a cross-linked resin.
  • the laminate of the present disclosure has excellent adhesiveness between layers.
  • FIG. 1A is a schematic diagram illustrating a device for manufacturing a laminate according to an embodiment of the present disclosure.
  • FIG. 1B is a schematic diagram illustrating a device for manufacturing a laminate according to another embodiment of the present disclosure.
  • FIG. 2A is a schematic diagram illustrating a device for manufacturing a laminate according to another embodiment of the present disclosure.
  • FIG. 2B is a schematic diagram illustrating a device for manufacturing a laminate according to another embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram illustrating a device for manufacturing a laminate according to another embodiment of the present disclosure.DETAILED DESCRIPTION OF THE EMBODIMENTS
  • a laminate includes a substrate, a decorative base sheet, a print layer containing an alcohol having a boiling point of 180 degrees C or higher, and a cross-linked resin.
  • the decorative base sheet contains a resin.
  • the laminate according to (3) mentioned above, wherein the resin in the decorative base sheet is an amino resin.
  • the laminate according to (4) mentioned above, wherein the resin contained in the overlay layer is an amino resin.
  • a method of manufacturing a laminate includes jetting an ink containing an alcohol having a boiling point of 180 degrees C or higher as a solvent to a decorative base sheet to form a print layer; applying a resin-containing liquid to the decorative base sheet; laminating the decorative base sheet to a substrate to obtain a laminar object; and applying heat and pressure to the laminar object to form the laminate.
  • a method of manufacturing a laminate includes jetting an ink containing an alcohol having a boiling point of 180 degrees C or higher as a solvent to a decorative base sheet to form a print layer, laminating an overlay layer on the surface of the print layer, laminating the decorative base sheet to a substrate to obtain a laminar object, and applying heat and pressure to the laminar object to form the laminate.
  • a device for manufacturing a laminate includes a conveying device to convey a decorative base sheet along a conveyance path, an inkjet device to form a print layer on the decorative base sheet, an application device to apply a resin-containing liquid to the decorative base sheet, a laminating device to laminate the decorative base sheet to a substrate to obtain a laminar object, and a heating and pressurizing device to apply heat and pressure to the laminar object to obtain the laminate, wherein the inkjet device and the application device are continuously disposed along the conveyance path.
  • a device for manufacturing a laminate includes a conveying device to convey a decorative base sheet along a conveyance path, an inkjet device to form a print layer on the decorative base sheet, an overlay layer-laminating device to laminate an overlay layer containing a resin on the surface of the print layer, a laminating device to laminate the decorative base sheet to a substrate to obtain a laminar object and a heating and pressurizing device to apply heat and pressure to the laminar object to obtain the laminate, wherein the inkjet device and the overlay layer-laminating device are continuously disposed along the conveyance path.
  • the laminate of the present disclosure includes a substrate, a decorative base sheet, a print layer containing an alcohol having a boiling point of 180 degrees C or higher, and a cross-linked resin.
  • the laminate of the present disclosure can be applied to a decorative board (or panel) used as a wall material, floor materials, etc.
  • Substrates for use in a laminate such as a decorative board (panel) impart mechanical strength, good handling property, etc. to the laminate.
  • the substrate can be a general material, typically wood.
  • MDF medium density fiberboard
  • OSD oriented strand board
  • the substrate is not limited to materials mainly made of wood but can be an article having the features mentioned above.
  • Decorative Base Sheet a structure capable of holding a resin-containing liquid inside such as a fibrous structure or a porous structure can be the decorative base sheet.
  • typical decorative base sheet for use in the process of typical printing such as gravure printing, flexographic printing, offset printing, etc. can be used.
  • the decorative base sheet contains pulp, synthetic fiber, etc.
  • the decorative base sheet is a paper material suitably containing additives such as titanium oxide, talc, clay, kaolin, calcium carbonate, a coloring agent, a wet strength enhancer, a coagulant, and a pH regulator. It is preferable to produce the decorative base sheet by a paper-making machine such as a Fourdrinier machine.
  • the ash proportion in the decorative base sheet is generally preferably in the range of from 20 to 40 percent by mass.
  • the basis weight of the decorative base sheet is not particularly limited but is preferably from 50 to 150 g/m 2 .
  • the decorative base sheet can be any article capable of holding a resin-containing liquid, for example, a film having a fibrous structure, a porous structure, etc.
  • the print layer contains an alcohol having a boiling point of 180 degrees C or higher and optionally other components such as a coloring material, other organic solvents, and additives.
  • a liquid (ink) forming the print layer is caused to contain an alcohol having a boiling point of 180 degrees C or higher. Due to the inclusion of an alcohol having a boiling point of 180 degrees C or higher in the print layer, a laminate having a cross-linked structure in which the resin is cross-linked is obtained.
  • an alcohol having a boiling point of 180 degrees C or higher in the liquid (ink)
  • sharp drying of the ink around the nozzles of an inkjet head and clogging in the nozzles can be prevented during discharging even for a long period of time, thereby achieving good discharging stability and image quality.
  • an alcohol having a boiling point of 180 degrees C or higher can also reduce production of bubbles caused by vaporization occurring in the step of applying heat and pressure to manufacture a decorative board, which is described later. This makes it possible to reduce degradation of adhesiveness in the decorative board.
  • the decorative base sheet constituting the laminate of the present disclosure may optionally furthermore contain a resin or a cross-linked resin.
  • a resin-containing liquid containing a resin or a precursor of the resin is applied to a medium such as a decorative base sheet to obtain a decorative base sheet containing the resin or the cross-linked resin.
  • amino resins are good in terms of adhesiveness between the decorative base sheet and a member disposed adjacent thereto. Also, amino resins are preferable because it is sufficiently reactive with the alcohol contained in the print layer for cross-linking, thereby achieving excellent adhesiveness.
  • the resin-containing liquid permeates the print layer and undergoes a cross-linking reaction with the alcohol contained in the print layer to form a cross-linked structure in the print layer and at the interface between the print layer and the decorative base sheet, which is inferred to enhance adhesiveness between the print layer and the decorative base sheet.
  • the overlay layer is a protection layer to enhance durability of the print layer of the decorative base sheet and can be suitably used to suit to a particular application.
  • This overlay layer can impart mechanical strength, heat resistance, chemical resistance, etc. to the surface of a decorative board. It is possible to use an article in which paper or film is impregnated with a resin such as a melamine as the overlay layer.
  • Transparent paper containing little or no ash is preferable as paper.
  • the paper for example, wood pulp fiber paper containing a large amount of ⁇ -cellulose components, linter cotton fiber paper, polyester film, etc. can be used.
  • the melamine resin permeates the print layer in the step of heating and pressurizing and cross-links with alcohol contained in the print layer to form a cross-linked structure at the interface between the print layer and the overlay layer, which is inferred to enhance adhesiveness between the print layer and the overlay layer.
  • the laminate of the present disclosure includes a cross-linked structure in which the resin is cross-linked.
  • the resin is applied to a decorative base sheet to which the print layer containing an alcohol having a boiling point of 180 degrees C or higher is provided to obtain a constitution of the decorative base sheet including the resin.
  • a substrate is laminated to this structure to obtain a laminar object, which is thereafter heated under pressure to obtain the laminate of the present disclosure.
  • the decorative base sheet is impregnated with a resin-containing liquid to apply the resin to the decorative base sheet.
  • the print layer can be formed by jetting (discharging) ink by an inkjet method.
  • the printed decorative base sheet contains liquid such as a solvent contained in the resin-containing liquid
  • this liquid may be dried (evaporated) and removed.
  • an overlay layer in which paper or film is impregnated with a resin such as a melamine resin is used, it is possible to provide a process of impregnating a decorative base sheet with a resin-containing liquid.
  • the alcohol having a boiling point of 180 degrees C or higher contained in the print layer and the resin such as a melamine resin contained in the overlay layer form a cross-linked structure as the laminate of the present disclosure.
  • the method of manufacturing a laminate of the present disclosure includes applying an ink to a decorative base sheet for printing.
  • the print layer formed during the printing is formed on or in the decorative base sheet and contains alcohol having a boiling point of 180 degrees C or higher.
  • an ink containing an alcohol having a boiling point of 180 degrees C or higher and other optional component such as a coloring material and water is used to form the print layer in the present disclosure.
  • the ink for use in the present disclosure contains an alcohol having a boiling point of 180 degrees C or higher as an organic solvent and other optional materials such as a coloring material, water, and an additive.
  • organic solvents other than alcohol can be used in combination.
  • Alcohol has a hydroxy group as a functional group cross-linkable (reactive) with the resin contained in the resin-containing liquid or the overlay layer.
  • Cross-linkable (reactive) means forming a covalent bond between the organic solvent (alcohol) and at least one of the resin and the resin precursor contained in the resin-containing liquid. As a consequence, a laminate including a crosslinked structure can be obtained.
  • the resin-containing liquid contains precursors of amino resins such as melamine resins, guanamine resins, and benzoguanamine resins
  • hydroxy group as the functional group in the alcohol having a boiling point of 180 degrees C or higher reacts with the resins, thereby forming a cross-linked structure.
  • the alcohol having a boiling point of 180 degrees C or higher for use in the present disclosure include, but are not limited to, the following.
  • the alcohol in the present disclosure has a hydroxyl group and is used as an organic solvent. It may contain an ether bond in its molecule.
  • the print layer may contain an alcohol having a boiling point lower than 180 degrees C in addition to the alcohol having a boiling point lower than 180 degrees C or higher.
  • Straight-chain alcohols such as lauryl alcohol (boiling point of 259 degrees C), cetyl alcohol (boiling point of 190 degrees C), stearyl alcohol (boiling point of 210 degrees C), behenyl alcohol (boiling point of 180 degrees C), myristyl alcohol (boiling point of 260 degrees C or higher), oleyl alcohol (boiling point of 207 degrees C), and cetostearyl alcohol (about 350 degrees C), and higher alcohols such as branched chain alcohols such as monostearyl glycerin ether (batyl alcohol, boiling point of 471 degrees C), 2-decyltetradecinol (boiling point of 271 degrees C.), lanolin alcohol, cholesterol (boiling point of 360 degrees C), phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol (boiling point of 223 degrees C),
  • Dihydlic alcohols such as ethylene glycol (boiling point of 197 degrees C), propylene glycol (boiling point of 188 degrees C), trimethylene glycol (boiling point of 287 degrees C), 1,2-butanediol (boiling point of 194 degrees C), 1,3-butanediol (boiling point of 207 degrees C), tetramethylene glycol, tetraethylene glycol (boiling point of 328 degrees C), 2,3-butanediol (boiling point of 183 degrees C), pentamethylene glycol (boiling point of 239 degrees C), 2-butene-1,4-diol (boiling point of 235 degrees C), hexylene glycol (boiling point of 197 degrees C), and octylene glycol, trihydric alcohols such as glycerin (boiling point of 290 degrees C) and trimethylolpropane
  • Polyol polymers such as diethylene glycol (boiling point of 244 degrees C), dipropylene glycol (boiling point of 231 degrees C), triethylene glycol (boiling point of 276 degrees C), polypropylene glycol, tetraethylene glycol (boiling point of 328 degrees C), diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, and polyethylene glycol monomethyl ether.
  • Divalent alcohol alkyl ethers such as ethylene glycol monophenyl ether (boiling point of 237 degrees C), ethylene glycol monohexyl ether (boiling point of 205 degrees C), ethylene glycol mono 2-methylhexyl ether (boiling point of 229 degrees C), ethylene glycol isoamyl ether, and ethylene glycol benzyl ether (boiling point of 256 degrees C),
  • Dihydlic alcohol alkylethers such as diethylene glycol monomethyl ether (boiling point of 193 degrees C), diethylene glycol monoethyl ether (boiling point of 196 degrees C), diethylene glycol monobutyl ether (boiling point of 230 degrees C), triethylene glycol monomethyl ether (boiling point of 248 degrees C), triethylene glycol monoethyl ether(boiling point of 255 degrees C), propylene glycol monomethyl ether (boiling point of 121 degrees C), propylene glycol isopropyl ether, dipropylene glycol methyl ether (boiling point of 188 degrees C), dipropylene glycol ethyl ether, and dipropylene glycol butyl ether (boiling point of 222 degrees C), sugar alcohols such as sorbitol (boiling point of 296 degrees C), mannitol (boiling point of 290 degrees C),
  • diethylene glycol monobutyl ether (butane diol (boiling point of 230 degrees C), 1,3-butanediol (boiling point of 207 degrees C), dipropylene glycol monomethyl ether (boiling point of 188 degrees C), and polyethylene glycol monomethylether are preferable and polyethylene glycol monomethylether are particularly preferable.
  • These alcohols can be used alone or in combination. The combination of two or more kinds and the ratio in the combination can be suitably selected to suit to a particular application.
  • the alcohol preferably accounts for 60 percent by mass or more, more preferably 65 percent by mass or more, furthermore preferably 80 percent by mass or more, and particularly preferably 90 percent by mass or more of the total amount of ink.
  • the ratio of the cross-linked structure can be increased. Due to this, in the step of manufacturing a laminate by applying heat and pressure described later, production of bubbles ascribable to vaporization of the uncross-linked liquid can be reduced. As a consequence, deterioration of interlayer adhesiveness in the laminate can be reduced. Therefore, all of the organic solvent components contained in ink may be alcohol.
  • such an alcohol has a boiling point of 180 degrees C or higher, preferably 200 degrees C or higher, more preferably 230 degrees C or higher, and furthermore preferably 290 degrees C or higher. Due to inclusion of this alcohol having a boiling point of 180 degrees C or higher in ink, sharp drying of the ink around the nozzles of an inkjet head and clogging in the nozzles can be prevented for discharging even for a long period of time, thereby achieving good discharging stability and image quality.
  • an alcohol having a boiling point of 180 degrees C or higher can also reduce production of bubbles caused by vaporization occurring in the step of applying heat and pressure to manufacture a laminate, which is described later. This makes it possible to reduce degradation of adhesiveness in the laminate.
  • the alcohol contained in the ink relating to the present disclosure preferably has a viscosity of 40 mPa-s or less and preferably 15 mPa-s or less at room temperature (25 degrees C).
  • viscosity is 40 mPa-s or less
  • the viscosity of the prescribed ink belongs to the viscosity range suitable for discharging in an ink jet head, thereby obtaining good discharging stability and image quality.
  • coloring material pigments and dyes can be used.
  • Known inorganic pigments and organic pigments are preferable in terms that good coloring on a decorative printing sheet is required even after the step of heating and pressurizing.
  • the inorganic pigment and the organic pigment for example, the following is usable: inorganic pigments such as carbon black manufactured by a furnace method or a channel method, a sulfate of an alkaline earth metal such as barium sulfate, a carbonate of an alkaline earth metal such as calcium carbonate, silicas such as fine powder silicic acid and synthesized silicate, calcium silicate, alumina, alumina hydrate, titanium oxide, zinc oxide, talc, and clay, and organic pigment such as azo-based pigments, phthalocyanine-based pigments, quinacridone-based pigments, perylene-based pigments, nitroso-based pigments, nitro-based pigments, isoindolinone-based organic pigments, pyranthrone-
  • Known methods such as a gravure method, a flexo method, an offset method, and an inkjet method can be used to form the print layer, and an ink containing a coloring material is applied to the decorative base sheet by these methods.
  • a method of forming the print layer inkjet methods are preferable.
  • the proportion of water in the ink is not particularly limited and can be suitably determined to suit to a particular application. and can be 0 to 90 percent by mass.
  • the proportion of water in the ink is preferably from 0 to 40 percent by mass, more preferably from 0 to 30 percent by mass, and particularly preferably from 0 to 25 percent by mass.
  • the proportion of water is decreased, the proportion of alcohol is increased. Therefore, sharp drying of the ink around the nozzles of an inkjet head and clogging in the nozzles can be prevented during discharging even for a long period of time, thereby achieving good discharging stability and image quality.
  • the proportion of water is preferably in the above range.
  • the ink does not necessarily contain water.
  • Additive Ink may further optionally include a surfactant, a defoaming agent, a preservative and fungicide, a corrosion inhibitor, a pH regulator, etc.
  • surfactant examples include silicone-based surfactants, fluorochemical surfactants, amphoteric surfactants, nonionic surfactants, anionic surfactants, etc.
  • the silicone-based surfactant has no specific limit and can be suitably selected to suit to a particular application. Of these, preferred are silicone-based surfactants which are not decomposed even in a high pH environment. Specific examples include, but are not limited to, side-chain-modified polydimethylsiloxane, both-distal-end-modified polydimethylsiloxane, one-distal-end-modified polydimethylsiloxane, and side-chain-both-distal-end-modified polydimethylsiloxane.
  • a silicone-based surfactant having a polyoxyethylene group or a polyoxypropylene group as a modification group is particularly preferable because such an agent demonstrates good properties as an aqueous surfactant. It is possible to use a polyether-modified silicone-based surfactant as the silicone-based surfactant.
  • a specific example is a compound in which a polyalkylene oxide structure is introduced into the side chain of the Si site of dimethyl siloxane.
  • fluorochemical surfactants include, but are not limited to, perfluoroalkyl sulfonic acid compounds, perfluoroalkyl carboxylic acid compounds, ester compounds of perfluoroalkyl phosphoric acid, adducts of perfluoroalkyl ethylene oxide, and polyoxyalkylene ether polymer compounds having a perfluoroalkyl ether group in its side chain. These are particularly preferable because they do not easily produce foams.
  • perfluoroalkyl sulfonic acid compounds include, but are not limited to, perfluoroalkyl sulfonic acid and salts of perfluoroalkyl sulfonic acid.
  • perfluoroalkyl carboxylic acid compounds include, but are not limited to, perfluoroalkyl carboxylic acid and salts of perfluoroalkyl carboxylic acid.
  • polyoxyalkylene ether polymer compounds having a perfluoroalkyl ether group in its side chain include, but are not limited to, salts of sulfuric acid ester of polyoxyalkylene ether polymer having a perfluoroalkyl ether group in its side chain and salts of polyoxyalkylene ether polymers having a perfluoroalkyl ether group in its side chain.
  • Counter ions of salts in these fluorochemical surfactants are, for example, Li, Na, K, NH 4 , NH 3 CH 2 CH 2 OH, NH 2 (CH 2 CH 2 OH) 2 , and NH(CH 2 CH 2 OH) 3 .
  • Specific examples of the amphoteric surfactants include, but are not limited to, lauryl aminopropionic acid salts, lauryl dimethyl betaine, stearyl dimethyl betaine, and lauryl dihydroxyethyl betaine.
  • nonionic surfactants include, but are not limited to, polyoxyethylene alkyl phenyl ethers, polyoxyethylene alkyl esters, polyoxyethylene alkyl amines, polyoxyethylene alkyl amides, polyoxyethylene propylene block polymers, sorbitan aliphatic acid esters, polyoxyethylene sorbitan aliphatic acid esters, and adducts of acetylene alcohol with ethylene oxides.
  • anionic surfactants include, but are not limited to, polyoxyethylene alkyl ether acetates, dodecyl benzene sulfonates, laurates, and polyoxyethylene alkyl ether sulfates. These can be used alone or in combination.
  • the silicone-based surfactant has no particular limit and can be suitably selected to suit to a particular application. Specific examples include, but are not limited to, side-chain-modified polydimethyl siloxane, both distal-end-modified polydimethylsiloxane, one-distal-end-modified polydimethylsiloxane, and side-chain-both-distal-end-modified polydimethylsiloxane.
  • a polyether-modified silicone-based surfactant having a polyoxyethylene group or a polyoxyethylene polyoxypropylene group is particularly preferable because such a surfactant demonstrates good property as an aqueous surfactant. Any suitably synthesized surfactant and any product available on the market is suitable.
  • the polyether-modified silicon-based surfactant has no particular limit and can be suitably selected to suit to a particular application.
  • a compound is usable in which the polyalkylene oxide structure represented by the following Chemical formula S-1 is introduced into the side chain of the Si site of dimethyl polysiloxane.
  • Chemical formula S-1 In the Chemical formula S-1, “m”, “n”, “a”, and “b” each, respectively independently represent integers, R represents an alkylene group, and R’ represents an alkyl group.
  • Specific examples of polyether-modified silicone-based surfactants include, but are not limited to, KF-618, KF-642, and KF-643 (all manufactured by Shin-Etsu Chemical Co., Ltd.), EMALEX-SS-5602 and SS-1906EX (both manufactured by NIHON EMULSION Co., Ltd.), FZ-2105, FZ-2118, FZ-2154, FZ-2161, FZ-2162, FZ-2163, and FZ-2164 (all manufactured by Dow Corning Toray Co., Ltd.), BYK-33 and BYK-387 (both manufactured by BYK Japan KK.), and TSF4440, TSF4452, and TSF4453 (all manufactured by Momentive Performance Materials Inc.).
  • a fluorochemical surfactant in which the number of carbon atoms replaced with fluorine atoms is 2 to 16 is preferable and, 4 to 16, more preferable.
  • Specific examples of the fluorochemical surfactants include, but are not limited to, perfluoroalkyl phosphoric acid ester compounds, adducts of perfluoroalkyl ethylene oxide, and polyoxyalkylene ether polymer compounds having a perfluoroalkyl ether group in its side chain. Of these, polyoxyalkylene ether polymer compounds having a perfluoroalkyl ether group in its side chain are preferable because they do not foam easily and the fluorosurfactant represented by the following Chemical formula F-1 or Chemical formula F-2 is more preferable.
  • Chemical formula F-1 In the compound represented by Chemical formula F-1, “m” is preferably 0 or an integer of from 1 to 10 and “n” is preferably 0 or an integer of from 1 to 40.
  • Y represents H or C m F 2m+1 , where m represents an integer of from 1 to 6, or CH 2 CH(OH)CH 2 -C m F 2m+1 , where m represents an integer of from 4 to 6, or C p H 2p+1 , where p is an integer of from 1 to 19.
  • n represents an integer of from 1 to 6.
  • a represents an integer of from 4 to 14.
  • fluorochemical surfactant products available on the market may be used.
  • SURFLON S-111 SURFLON S-112, SURFLON S-121, SURFLON S-131, SURFLON S-132, SURFLON S-141, and SURFLON S-145
  • FLUORAD FC-93, FC-95, FC-98, FC-129, FC-135, FC-170C, FC-430, and FC-431 all manufactured by SUMITOMO 3M
  • MEGAFACE F-470, F-1405, and F-474 all manufactured by DIC CORPORATION
  • ZONYL TBS, FSP, FSA, FSN-100, FSN, FSO-100, FSO, FS-300, UR, and Capstone TM , FS-30, FS-31, FS-3100, FS-34, and FS-35 (all manufactured by The Chemours Company); FT-110, FT-250, FT-251, FT-400S,
  • the proportion of the surfactant in the ink is not particularly limited and can be suitably selected to suit to a particular application.
  • it is preferably from 0.001 to 5 percent by mass and more preferably from 0.05 to 5 percent by mass in terms of excellent wettability and discharging stability and improvement on image quality.
  • the defoaming agent has no particular limit.
  • silicon-based defoaming agents, polyether-based defoaming agents, and aliphatic acid ester-based defoaming agents are suitable. These can be used alone or in combination. Of these, silicone-based defoaming agents are preferable in terms of the effect of foam breaking.
  • Preservatives and Fungicides are not particularly limited.
  • a specific example is 1,2-benzisothiazoline-3-one.
  • Corrosion Inhibitor has no particular limitation. Specific examples include, but are not limited to, acid sulfites and sodium thiosulfates.
  • the pH regulator has no particular limit as long as it can control pH to not lower than 7. Specific examples include, but are not limited to, amines such as diethanol amine and triethanol amine.
  • the method of manufacturing the laminate of the present disclosure may include applying a resin-containing liquid containing a resin to a base sheet (decorative base sheet) after the printing described above.
  • a method of applying the resin-containing liquid include a method of immersing the decorative base sheet in the resin-containing liquid and a method of spray-coating the resin-containing liquid onto the decorative base sheet.
  • the former is preferable. It is because, due to this immersion of the decorative base sheet in the resin-containing liquid, the resin-containing liquid is uniformly applied, which has a good impact on mutual interaction between the components in the resin-containing liquid described later and the component in the ink. In addition, due to this immersion, the resin-containing liquid sufficiently permeates the inside of decorative base sheet, thereby obtaining a decorative base sheet having a strength suitable for a decorative board.
  • the resin-containing liquid contains a resin or a resin precursor and optionally contains other components.
  • the resin-containing liquid includes both of a case of containing a resin and a case of containing no resin but a resin precursor.
  • the resin precursor is a component producing a resin via a polymerization reaction and includes a monomer, an oligomer (dimer, trigomer, etc.), and a prepolymer.
  • the precursor of a melamine resin includes a composition containing a melamine compound such as the component represented by the following Chemical formula 1 and an aldehyde compound having an aldehyde group (-CHO) in a molecule such as formaldehyde.
  • R 1 , R 2 , and R 3 each, independently represent hydrogen atoms or hydrocarbon groups having 1 to 4 carbon atoms which may have substituents. It is preferable that both R 1 , R 2 , and R 3 be hydrogen atoms at the same time.
  • the resin and the resin precursor are preferably an aqueous resin or an aqueous resin precursor.
  • Aqueous means a state in which a resin is dissolved in water, a state in which a resin is dispersed or suspended in water, or a state in which a resin precursor is dispersed or a suspended in water.
  • Specific examples of the resins include, but are not limited to, thermocurable resins such as amino resins, unsaturated polyester resins, diallyl phthalate resins, phenolic resins, urea resins, and epoxy resins, and water-soluble resins such as polyvinyl alcohols, cellulose derivatives, and polyvinyl pyrrolidones.
  • the resin precursors include, but are not limited to, those of thermocurable resins such as amino resins, unsaturated polyester resins, diallyl phthalate resins, phenolic resins, urea resins, and epoxy resins, and water-soluble resins such as polyvinyl alcohols, cellulose derivatives, and polyvinyl pyrrolidones. These resins and resin precursors may be used alone or in combination.
  • thermocurable resins such as amino resins, unsaturated polyester resins, diallyl phthalate resins, phenolic resins, urea resins, and epoxy resins
  • water-soluble resins such as polyvinyl alcohols, cellulose derivatives, and polyvinyl pyrrolidones.
  • the resin and the resin precursor cause the decorative base sheet and other members, for example, a substrate and an overcoat, which are described later, to adhere to each other in the step of applying heat and pressure to form a laminate, which is described later. Therefore, cross-linkable resins and cross-linkable resin precursors are preferable, amino resin precursors are more preferable, and melamine resin precursors are furthermore preferable.
  • cross-linkable means that a resin or a resin precursor cross-links with or without a cross-linking agent. Cross-linking without a cross-linking agent is preferable.
  • the resin-containing liquid may contain a solvent or a dispersion medium.
  • the solvent is a liquid dissolving at least one of the resin and the resin precursor contained in a resin-containing liquid.
  • the dispersion medium is a liquid dispersing at least one of the resin and the resin precursor contained in a resin-containing liquid.
  • Specific examples of the solvent and the dispersion medium include, but are not limited to, organic solvents such as alcohols and ketones and water, which is preferable.
  • the proportion of the resin and the resin precursor in the resin-containing liquid is not particularly limited, can be suitably selected to suit to a particular application. Preferably, it is from 5.0 to 6.0 percent by mass.
  • the proportion of the solvent or the dispersion medium in the resin-containing liquid is not particularly limited and can be suitably selected to suit to a particular application. Preferably it is from 30.0 to 98.0 percent by mass.
  • the resin-containing liquid may contain the specified-above additives of an ink as the other optional components.
  • the method of manufacturing a laminate of the present disclosure may include a step of applying a resin-containing liquid containing a resin to a decorative base sheet after printing.
  • At least one of the resin and the resin precursor applied to the decorative base sheet reacts with alcohol having a boiling point of 180 degrees C or higher as a component of the ink to form a covalent bond for cross-linking (solidification) to obtain a laminate.
  • the method of removing (drying) the liquid contained in the decorative base sheet for example, preferred are a method of heating the decorative base sheet by a heating device, a method of irradiating the decorative base sheet with ultraviolet rays by an ultraviolet ray irradiation device, a method of irradiating the decorative base sheet with electron beams by an electron beam irradiation device.
  • the method of heating is preferable. This is because the method of heating does not impair productivity since it does not require any new additional step to a typically general manufacturing process.
  • due to the method of heating by a heating device it is possible to vaporize and remove the liquid, i.e., solvent and water, contained in the decorative base sheet, thereby enhancing adhesiveness of the laminate.
  • the heating device is not particularly limited as long as it is a known device.
  • a heated air blowing device using hot air an infrared drying device using an infrared lamp, a heating roller on which a decorative base sheet is caused to pass, and a dielectric heating device utilizing dielectric heating can be used.
  • the amount of the liquid present at the interface of the laminate is decreased when the decorative base sheet is laminated with a member such as the substrate and the overlay layer, thereby reducing degradation of adhesiveness in the laminate (decorative board).
  • the coloring material contained in ink applied to the decorative base sheet is simultaneously taken in. Due to this, the position of the coloring material is fixed in the decorative base sheet, so that a laminate (decorative printing sheet, a decorative board) having a print layer with a high image density can be obtained.
  • the laminate has a cross-linked structure
  • alcohol having a boiling point of 180 degrees C or higher forms a covalent bond and cross-links (solidifies) with at least one of the resin and the resin precursor applied to the decorative base sheet.
  • Production of bubbles ascribable to vaporization can be diminished in the step of preparing a laminate by heating and pressurizing, which is described later. This makes it possible to reduce degradation of adhesiveness in the laminate.
  • the device for manufacturing a laminate relating to the present disclosure may include a device for printing onto a medium such as a decorative base sheet and a device for applying a resin-containing liquid containing a resin to a medium such as a decorative base sheet. Also, in such a case, it can furthermore optionally include a drying device such as a heater.
  • a drying device such as a heater.
  • FIG. 1A is a schematic diagram illustrating the device for manufacturing a laminate according to an embodiment of the present disclosure.
  • a manufacturing device 1 for manufacturing a laminate illustrated in FIG. 1A includes a decorative base sheet supplying device 10, a conveyor roller (conveying device) 11, a resin containing liquid immersion tank 12, a liquid discharging head 13, and a laminating device 16..
  • the decorative base sheet supplying device 10 rotates to supply a decorative base sheet along the conveyance direction indicated by the arrow A.
  • the decorative base sheet supplying device 10 does not necessarily rotate on its own but can be rotationally driven by another drive member to convey the decorative sheet.
  • the conveyor roller 11 rotates to convey the decorative base sheet supplied to the manufacturing device 1 for manufacturing a laminate along a conveyance path 100 in the manufacturing device 1.
  • the conveyor roller 11 does not necessarily rotate on its own but can be rotationally driven by another drive member to convey the decorative sheet.
  • the resin containing liquid immersion tank 12 carries a resin-containing liquid 110 inside and the decorative base sheet passes on the conveyance path 100 where the decorative base sheet is immersed in the resin-containing liquid 110. Due to this, the resin-containing liquid is applied to the decorative base sheet.
  • the resin-containing liquid 110 containing a resin is applied to a medium such as a decorative base sheet.
  • the resin-containing liquid 110 is not necessarily used when the resin-containing liquid 110 is not applied to a medium such as a decorative base sheet.
  • the liquid discharging head 13 includes multiple nozzle lines each of which has multiple nozzles.
  • the liquid discharging direction from the nozzles is oriented to the conveyance path 100 of the decorative base sheet.
  • Each liquid discharging head sequentially discharges liquid of ink of magenta (M), cyan (C), black (K), and yellow (Y) in this order onto the decorative base sheet to form a print layer.
  • the liquid discharging head 13 may discharge the liquid by a pressure generated by a pressure generating device.
  • a piezoelectric actuator which may include a laminated piezoelectric element
  • a thermal actuator using an electrothermal transducer such as a heat element
  • an electrostatic actuator including a plate and a counter electrode
  • FIG. 1B is a diagram illustrating an embodiment in which the heating device 14 is disposed upstream of the laminating device 16 to apply a substrate for the device illustrated in FIG. 1A.
  • the heating device 14 heats the decorative base sheet on which the print layer is formed. As a result, the liquid contained in the decorative base sheet is evaporated.
  • the manufacturing device 1 for manufacturing a laminate illustrated in FIG. 2A further includes a laminating device 15 for laminating the overlay layer and a heating and pressurizing device 17 to laminate the base sheet, the substrate, the overlay layer, etc., and heat them under a pressure against the device illustrated in FIG. 1A.
  • FIG. 2B is a diagram illustrating an embodiment in which the heating device 14 is added to the device illustrated in FIG. 2A.
  • FIG. 3 is a diagram illustrating an embodiment excluding the resin-containing liquid immersion tank 12 from the configuration illustrated in FIG. 2A. To laminate the overlay layer containing the resin, it is possible to use the device illustrated in FIG. 3.
  • percent means “percent by mass” unless otherwise specified.
  • Inks 2 to 7 were prepared in the same manner as in Preparation of Ink 1 except that the compositions and the proportions (percent by mass) were changed to those shown in the following Table 2.
  • Decorative Base Sheet KSH-801P (basis weight of 80 g/m 2 , ash proportion of 32 percent, manufactured by KJ Specialty Paper Co., Ltd.) was used as the decorative base sheet.
  • Resin-Containing Liquid 2 Water-soluble melamine (Nika-resin S-176, methylolmelamine, manufactured by NIPPON CARBIDE INDUSTRIES CO., INC.) as a melamine resin precursor was mixed with water in such a manner that the solid content concentration was 20 percent by mass to prepare Resin-containing Liquid 2.
  • Resin-Containing Liquid 3 Water soluble resole phenolic resin (IG-1002, manufactured by DIC Corporation) and water-soluble melamine (Nika-resin S-176, methylol melamine, manufactured by NIPPON CARBIDE INDUSTRIES CO., INC.) as a melamine resin precursor were mixed with water in such a manner that the solid content concentration was 25 percent by mass and the molar ratio of the water-soluble resole phenolic resin to water-soluble melamine was 5 to 4 to prepare Resin-containing Liquid 3.
  • IG-1002 Water soluble resole phenolic resin
  • water-soluble melamine Naika-resin S-176, methylol melamine, manufactured by NIPPON CARBIDE INDUSTRIES CO., INC.
  • the decorative base sheet was immersed in the resin-containing liquid, and it was visually confirmed that the resin-containing liquid sufficiently permeated the decorative base sheet. Thereafter, the decorative base sheet was hot-air dried again (110 degrees C, two minutes) to obtain a decorative base sheet containing a resin.
  • an MDF laminated material having a thickness of 15 mm, the thus-obtained decorative base sheet containing a resin, and an overlay base paper (OL-25 containing a melamine resin, manufactured by Ota Industry Co., Ltd.) were laminated in this order and inserted into a hot press and heated at 190 degrees C at a pressure of 40 kg/cm 2 for a pressing time of 30 seconds to obtain Decorative board 1.
  • Examples 2 to 9 and Comparative Examples 1 to 4 Decorative boards of Examples 2 to 9 and Comparative Examples 1 to 4 were manufactured in the same manner as in Example 1 except that the inks, whether the resin-containing liquid was used, and whether the overlay layer was provided were changed as shown in Table 3.
  • the decorative boards of Examples 1 to 9 and Comparative Examples 1 to 4 were evaluated for adhesiveness and inkjet discharging stability according to the following methods and evaluation criteria.
  • Adhesiveness The obtained decorative boards were evaluated for adhesiveness according to the cross-cut test (old standard) of JIS K 5400 format.
  • an adhesiveness value of 100 means a state in which there is no peeling-off even at a single position of the cross-cut portions cut to 100 pieces.
  • An adhesiveness value of 70 means a state in which the area of the non-peeled-off portion is 70 percent.
  • Rated A or B means evaluated as practical. The results are shown in Table 3. Evaluation Criteria A: Adhesiveness from 80 to 100 B: Adhesiveness from 70 to less than 80 C: Adhesiveness less than 70
  • the decorative boards of Examples 1 to 9 had good adhesiveness. As to adhesiveness, it was confirmed that Examples 2 to 7 using a cross-linkable resin were good. Further, inclusion of an alcohol-based solvent having a boiling point of 200 degrees C or higher contributed to enhancement of discharging stability. Examples 1, 2, 3, 8, and 9 using polyethylene glycol monomethyl ether, which was an alcohol-based solvent having a boiling point of 290 degrees C or higher, were particularly excellent regarding discharging stability. In addition, good adhesiveness was also obtained in the decorative board (Example 9) in which the overlay layer was laminated without the treatment of a resin-containing liquid. For the decorative boards of Comparative Examples 1 to 3, practical applicability was expected for adhesiveness.
  • Example 2 Confirmation of Reactivity of Alcohol and Melamine (Amino Resin)
  • reactivity between melamine and polyethylene glycol monomethyl ether used as an alcohol in Example 2 was tested to confirm the reactivity.
  • 10 parts of water-soluble melamine Naika-resin S-176, methylolmelamine, manufactured by NIPPON CARBIDE INDUSTRIES CO., INC.
  • 0.2 part of polyethylene glycol monomethyl ether (boiling point of from 290 to 310 degrees C, Himole PM, manufactured by Toho Chemical Industry Co., Ltd.), and 10 parts of water were thoroughly stirred and stored at 80 degrees C for two weeks.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

Un stratifié comprend un substrat, une feuille de base décorative, une couche d'impression contenant un alcool ayant un point d'ébullition de 180°C ou plus, et une résine réticulée. La résine réticulée est obtenue de telle manière que la résine contenue dans la feuille de base décorative ou une couche de recouvrement forme une structure réticulée à l'aide de l'alcool contenu dans la couche d'impression en tant que composant de réticulation.
PCT/JP2018/041836 2017-11-15 2018-11-12 Stratifié, procédé de fabrication de stratifié et dispositif de fabrication de stratifié WO2019098155A1 (fr)

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EP18816269.7A EP3710246A1 (fr) 2017-11-15 2018-11-12 Stratifié, procédé de fabrication de stratifié et dispositif de fabrication de stratifié
US16/640,095 US20210129516A1 (en) 2017-11-15 2018-11-12 Laminate, method of manufacturing laminate, and device for manufacturing laminate
CN201880073712.2A CN111433024A (zh) 2017-11-15 2018-11-12 叠层体，制造叠层体的方法，以及制造叠层体的装置

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005001146A (ja) 2003-06-10 2005-01-06 Sumitomo Bakelite Co Ltd 化粧層用材料と化粧板
WO2014084280A1 (fr) 2012-11-27 2014-06-05 Ｋｊ特殊紙株式会社 Papier support pour stratifié décoratif, et stratifié décoratif
WO2014109700A1 (fr) * 2013-01-11 2014-07-17 Floor Iptech Ab Encre sèche pour impression numérique
JP2015086373A (ja) 2013-09-24 2015-05-07 Toto株式会社 プライマー組成物
EP2894044A1 (fr) * 2014-01-10 2015-07-15 Agfa Graphics Nv Fabrication de stratifiés décoratifs par impression à jet d'encre
EP2905376A1 (fr) * 2014-02-06 2015-08-12 Agfa Graphics Nv Fabrication de stratifiés décoratifs par impression à jet d'encre
JP2017219676A (ja) 2016-06-07 2017-12-14 コニカミノルタ株式会社 画像形成システム
JP2018141823A (ja) 2017-02-27 2018-09-13 キヤノンファインテックニスカ株式会社 定着装置及び画像形成装置
JP2018185369A (ja) 2017-04-24 2018-11-22 凸版印刷株式会社 表示装置および表示装置の製造方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005001146A (ja) 2003-06-10 2005-01-06 Sumitomo Bakelite Co Ltd 化粧層用材料と化粧板
WO2014084280A1 (fr) 2012-11-27 2014-06-05 Ｋｊ特殊紙株式会社 Papier support pour stratifié décoratif, et stratifié décoratif
WO2014109700A1 (fr) * 2013-01-11 2014-07-17 Floor Iptech Ab Encre sèche pour impression numérique
JP2015086373A (ja) 2013-09-24 2015-05-07 Toto株式会社 プライマー組成物
EP2894044A1 (fr) * 2014-01-10 2015-07-15 Agfa Graphics Nv Fabrication de stratifiés décoratifs par impression à jet d'encre
EP2905376A1 (fr) * 2014-02-06 2015-08-12 Agfa Graphics Nv Fabrication de stratifiés décoratifs par impression à jet d'encre
JP2017219676A (ja) 2016-06-07 2017-12-14 コニカミノルタ株式会社 画像形成システム
JP2018141823A (ja) 2017-02-27 2018-09-13 キヤノンファインテックニスカ株式会社 定着装置及び画像形成装置
JP2018185369A (ja) 2017-04-24 2018-11-22 凸版印刷株式会社 表示装置および表示装置の製造方法

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