WO2018062340A1 - 化粧シート及び化粧板 - Google Patents
化粧シート及び化粧板 Download PDFInfo
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- WO2018062340A1 WO2018062340A1 PCT/JP2017/035097 JP2017035097W WO2018062340A1 WO 2018062340 A1 WO2018062340 A1 WO 2018062340A1 JP 2017035097 W JP2017035097 W JP 2017035097W WO 2018062340 A1 WO2018062340 A1 WO 2018062340A1
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Definitions
- the present invention relates to a decorative sheet and a decorative board.
- an interior material used for the interior of a building is required to have a design property
- a decorative board is used as such an interior material.
- the surface of the decorative board used for the floor surface is required to have scratch resistance as well as design properties.
- low pressure melamine floors are mainly used for Western floors in consideration of scratch resistance.
- the low-pressure melamine floor has a problem that it is easy to resonate during walking, feels hard, and is cold.
- a floor (so-called decorative sheet of vinyl chloride resin) bonded to a chipboard typically represented by cork as an adherend (decorative board substrate) (so-called decorative sheet) Hybrid floor) is used.
- Chipboards are mechanically pulverized wood chips, bark, small-diameter logs and construction waste materials discarded at the site of demolition work, which are discarded at sawmills, and compressed into a plate with synthetic resin adhesive. It is a base material obtained by molding.
- the above-mentioned hybrid floor is excellent in that it is environmentally friendly, has sound insulation and heat insulation effects, and has a soft touch by using a chip board as an adherend. The variation of is suppressed.
- a decorative board that does not use a vinyl chloride resin is required in consideration of environmental problems.
- a decorative board in which a decorative sheet using an olefin resin is bonded to an adherend is used as a decorative board that does not use a vinyl chloride resin.
- an adherend such as a chipboard to make a decorative plate
- the uneven surface shape of the adherend appears on the surface of the decorative sheet, and the surface of the decorative plate does not become smooth and is designed.
- the uneven shape that appears on the surface of the decorative sheet due to the uneven surface shape of the adherend is also referred to as “duck”).
- the embossing property is inferior because the decorative sheet is thick, and the design property is lowered when the embossed shape is shallow. There is.
- Patent Document 1 states that “at least a transparent resin layer and a surface protective layer are sequentially laminated on a base material sheet, and at least a backer is provided on the back surface of the base material sheet.
- a decorative sheet in which layers are laminated (1) The ten-point average roughness Rzjis of the surface of the decorative sheet is 40 ⁇ m or more, (2)
- the surface protective layer contains an ionizing radiation curable resin, (3)
- the base sheet, the transparent resin layer, and the backer layer each include a non-halogen thermoplastic resin, (4)
- the backer layer has a thickness of 120 to 250 ⁇ m, (5)
- the Martens hardness of the backer layer is 50 to 80 N / mm 2 , (6)
- the backer layer is laminated by extruding the backer layer forming resin composition in a molten state with respect to the back surface of the base sheet.
- the decorative sheet described in Patent Document 1 is suppressed in the occurrence of duck when it is bonded to an adherend such as a chipboard to produce a decorative board, has excellent embossing properties, and is attached to the adherend. When combined, emboss crushing is suppressed.
- the embossed sheet is deeply embossed when bonded to the substrate even though it is excellent in design and feel in the state of the decorative sheet. There is a problem that the shape is crushed and desired design and feel cannot be obtained.
- the present invention provides a decorative sheet in which crushing of the embossed shape when bonded to an adherend is suppressed even when a deep embossed shape is formed to improve the design and feel of the decorative board, and the same
- An object of the present invention is to provide a decorative board using the.
- the inventor is a decorative sheet composed of a laminate including a base sheet, a transparent resin layer, and a surface protective layer in order in the thickness direction, and the surface protective layer
- a specific embossed concavo-convex pattern from the side it has been found that the above object can be achieved and the present invention has been completed.
- the present invention relates to the following decorative sheet and decorative plate.
- a decorative sheet composed of a laminate comprising a base sheet, a transparent resin layer, and a surface protective layer, (1)
- the decorative sheet has an embossed uneven pattern from the surface protective layer side, (2)
- the convex portion of the embossed concavo-convex pattern is a raised portion continuously connected to the concave portion, and the convex portion is based on the surface of the surface protective layer of the portion not having the embossed concavo-convex pattern as a reference plane.
- the maximum peak height Rp of the roughness curve defined in JIS B0601 (2001) on the surface of the surface protective layer is 30 ⁇ m or more.
- the decorative sheet according to Item 1, wherein the ten-point average roughness Rzjis defined in JIS B0601 (1994) on the surface of the surface protective layer is 50 ⁇ m or more.
- the surface protective layer is composed of a single layer
- the surface protective layer contains fine particles having a particle diameter larger than the thickness of the single layer, and 2) when the surface protective layer is composed of multiple layers.
- Item 5 The decorative sheet according to any one of Items 1 to 4, wherein the decorative sheet contains fine particles having a particle diameter larger than the thickness of the outermost layer constituting the multilayer. 6).
- Item 6 The decorative sheet according to Item 5, wherein the fine particles are vesicled by a supercritical reverse phase evaporation method. 7). Item 7.
- Item 8 The decorative sheet according to any one of Items 1 to 7, wherein the surface protective layer contains an ionizing radiation curable resin.
- the base sheet and the transparent resin layer contain a non-halogen thermoplastic resin.
- Item 10 The decorative sheet according to Item 9, wherein the non-halogen thermoplastic resin is an olefin-based thermoplastic resin. 11.
- a decorative board composed of a laminate comprising a decorative board substrate and a decorative sheet
- the decorative sheet is composed of a laminate including a base sheet, a transparent resin layer, and a surface protective layer in order in the thickness direction
- the decorative sheet has an embossed uneven pattern from the surface protective layer side
- the convex part of the embossed uneven pattern is a raised part continuously connected to the concave part, and the convex part is based on the surface of the surface protective layer of the part not having the embossed uneven pattern as a reference surface. Protruding from the surface, (4)
- the maximum peak height Rp of the roughness curve defined in JIS B0601 (2001) on the surface of the surface protective layer is 30 ⁇ m or more.
- the decorative board base material is a medium density wood fiber board, a high density wood fiber board, a particle board, a softwood plywood, a hardwood plywood, an early-wood plywood, a cork sheet, a cork-containing composite base material, and a thermoplastic resin base material.
- the decorative sheet of the present invention is a decorative sheet composed of a laminate including a base sheet, a transparent resin layer, and a surface protective layer in order in the thickness direction, (1)
- the decorative sheet has an embossed uneven pattern from the surface protective layer side, (2)
- the convex portion of the embossed concavo-convex pattern is a raised portion continuously connected to the concave portion, and the convex portion is based on the surface of the surface protective layer of the portion not having the embossed concavo-convex pattern as a reference plane. Protruding from the surface, (3)
- the maximum peak height Rp of the roughness curve defined in JIS B0601 (2001) on the surface of the surface protective layer is 30 ⁇ m or more. It is characterized by that.
- Such a decorative sheet and decorative plate of the present invention are useful as a decorative sheet and decorative plate used for flooring.
- FIG. 3 is a cross-sectional view schematically showing examples (a) to (d) of embossed uneven patterns of the decorative sheet of the present invention.
- the decorative sheet of the present invention is a decorative sheet composed of a laminate comprising a base sheet, a transparent resin layer, and a surface protective layer in order in the thickness direction, (1)
- the decorative sheet has an embossed uneven pattern from the surface protective layer side, (2)
- the convex portion of the embossed concavo-convex pattern is a raised portion continuously connected to the concave portion, and the convex portion is based on the surface of the surface protective layer of the portion not having the embossed concavo-convex pattern as a reference plane. Protruding from the surface, (3)
- the maximum peak height Rp of the roughness curve defined in JIS B0601 (2001) on the surface of the surface protective layer is 30 ⁇ m or more. It is characterized by that.
- the decorative sheet of the present invention having the above features suppresses the collapse of the embossed shape when bonded to the adherend even when a deep embossed shape is formed to improve the design and feel of the decorative plate. Yes. Therefore, not only in the state of the decorative sheet but also in the state of the decorative plate, the design and feel of the embossed uneven pattern are excellent.
- Such a decorative sheet and decorative plate of the present invention are useful as a decorative sheet and decorative plate used for flooring.
- the decorative sheet of the present invention is composed of a laminate including a base sheet, a transparent resin layer, and a surface protective layer in order in the thickness direction, and has an embossed concavo-convex pattern of a predetermined shape from the surface protective layer side. If it has, the specific configuration (layer configuration) is not limited.
- a pattern layer, a transparent adhesive layer, a transparent resin layer, a primer layer, and a surface protective layer are sequentially laminated on the base material sheet, and further, the back surface on the back surface of the base material sheet.
- a decorative sheet having a primer layer is exemplified (mode of decorative sheet 1 in FIG. 3).
- the direction in which the surface protective layer is laminated as viewed from the base sheet is referred to as “upper” or “front surface”, and the direction in which the back primer layer is laminated as viewed from the base sheet. It is called “bottom” or “back”.
- the “front (side) surface” or “surface protective layer (side) surface” of the decorative sheet or decorative plate means a surface visually recognized after the decorative sheet or decorative plate is applied.
- the “surface protective layer side” is also referred to as “surface protective layer side” for short.
- FIG. 1 is a cross-sectional view showing an example of the decorative sheet of the present invention.
- the decorative sheet 1 shown in FIG. 1 has a pattern layer 3, a transparent resin layer 4, and a surface protective layer (5, 6) laminated on a base sheet 2, and has an embossed uneven pattern from the surface protective layer side. is doing.
- the convex portion C is a raised portion continuously connected to the concave portion D, and protrudes from the reference surface with the surface (flat portion) of the surface protective layer as a reference surface.
- the surface protective layer may be a single layer or two or more layers. As shown in FIG. 1, the surface protective layer is divided into an upper layer and a lower layer (surface protective layers 5 and 6). It is.
- the lower limit / upper limit of the numerical range represented by “to” means “more than or less” (for example, ⁇ to ⁇ is ⁇ to ⁇ ).
- the base material sheet has a pattern layer or the like sequentially laminated on the surface (front surface) thereof.
- the material of a base material sheet is not limited, It is preferable to contain a non-halogen-type thermoplastic resin.
- Non-halogen thermoplastic resins include low density polyethylene (including linear low density polyethylene), medium density polyethylene, high density polyethylene, ethylene- ⁇ olefin copolymer, homopolypropylene, polymethylpentene, polybutene, ethylene- Olefin-based thermoplastic resins such as propylene copolymer, propylene-butene copolymer, ethylene-vinyl acetate copolymer, saponified ethylene-vinyl acetate copolymer, or mixtures thereof, polyethylene terephthalate, polybutylene terephthalate, Polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, polycarbonate, polyarylate, and other thermoplastic ester resins, poly (meth) acrylate, poly (meth) acrylate, polyethylacrylate, Thermoplastic acrylic resins such as Riakuriru butyl, nylon-6, polyamide-based thermoplastic resin such as nylon-66
- the base sheet may be colored.
- a coloring material pigment or dye
- a coloring material for example, inorganic pigments such as titanium dioxide, carbon black and iron oxide, organic pigments such as phthalocyanine blue, and various dyes can be used. These can be selected from one or more known or commercially available ones. Further, the addition amount of the colorant may be appropriately set according to the desired color tone.
- the base sheet contains various additives such as fillers, matting agents, foaming agents, flame retardants, lubricants, antistatic agents, antioxidants, UV absorbers, and light stabilizers as necessary. It may be.
- the thickness of the base sheet is preferably 40 to 100 ⁇ m.
- the thickness of the base sheet is less than 40 ⁇ m, when the decorative board base has a concavo-convex shape, there is a possibility that the unevenness on the decorative board surface cannot be sufficiently suppressed.
- the thickness of a base material sheet exceeds 100 micrometers, when a decorative sheet is preserve
- the thickness of the base sheet is more preferably 60 to 80 ⁇ m.
- the base sheet may be composed of a single layer or multiple layers.
- the base sheet may be subjected to corona discharge treatment on the surface (front surface) in order to enhance the adhesion of the ink forming the pattern layer.
- corona discharge treatment on the surface (front surface) in order to enhance the adhesion of the ink forming the pattern layer.
- What is necessary is just to implement the method and conditions of a corona discharge process according to a well-known method.
- Pattern pattern layer is an arbitrary layer that imparts a desired pattern (design) to the decorative sheet, and the type of the pattern is not limited. For example, a wood grain pattern, a leather pattern, a stone pattern, a grain pattern, a tiled pattern, a brickwork pattern, a cloth pattern, a geometric figure, a character, a symbol, an abstract pattern, and the like can be given.
- the method for forming the pattern layer is not particularly limited.
- an ink obtained by dissolving (or dispersing) a known colorant (dye or pigment) in a solvent (or dispersion medium) together with a binder resin is used. What is necessary is just to form on the base-material sheet
- an aqueous composition can be used from the viewpoint of reducing the VOC of the decorative sheet.
- colorants include inorganic pigments such as carbon black, titanium white, zinc white, dial, bitumen, cadmium red; azo pigments, lake pigments, anthraquinone pigments, quinacridone pigments, phthalocyanine pigments, isoindolinone pigments, dioxazine pigments.
- Organic pigments such as aluminum powder, metal powder pigments such as bronze powder, pearlescent pigments such as titanium oxide-coated mica and bismuth oxide chloride; fluorescent pigments; These colorants can be used alone or in admixture of two or more. These colorants may be used together with fillers such as silica, extender pigments such as organic beads, neutralizing agents, surfactants and the like.
- binder resin in addition to polyester-based urethane resin treated with hydrophilicity, polyester, polyacrylate, polyvinyl acetate, polybutadiene, polyvinyl chloride, chlorinated polypropylene, polyethylene, polystyrene, polystyrene-acrylate copolymer, rosin derivative
- an alcohol adduct of styrene-maleic anhydride copolymer, cellulose resin and the like can be used in combination. More specifically, for example, polyacrylamide resins, poly (meth) acrylic resins, polyethylene oxide resins, poly N-vinyl pyrrolidone resins, water-soluble polyester resins, water-soluble polyamide resins, water-soluble amino acids.
- water-based resins water-soluble phenolic resins, other water-soluble synthetic resins; water-soluble natural polymers such as polynucleotides, polypeptides, polysaccharides, and the like.
- water-soluble natural polymers such as polynucleotides, polypeptides, polysaccharides, and the like.
- natural rubber, synthetic rubber, polyvinyl acetate resin, (meth) acrylic resin, polyvinyl chloride resin, polyurethane-polyacrylic resin, etc. modified or a mixture of natural rubber, etc. Resin can also be used.
- the said binder resin can be used individually or in combination of 2 or more types.
- solvent examples include petroleum organic solvents such as hexane, heptane, octane, toluene, xylene, ethylbenzene, cyclohexane, and methylcyclohexane; ethyl acetate, butyl acetate, 2-methoxyethyl acetate, acetic acid-2 -Ester-based organic solvents such as ethoxyethyl; alcohol-based organic solvents such as methyl alcohol, ethyl alcohol, normal propyl alcohol, isopropyl alcohol, isobutyl alcohol, ethylene glycol, propylene glycol; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone Organic solvents; ether organic solvents such as diethyl ether, dioxane, tetrahydrofuran; dichloromethane, carbon
- Examples of the printing method used for forming the pattern layer include a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, an electrostatic printing method, and an inkjet printing method.
- a gravure printing method for example, roll coating method, knife coating method, air knife coating method, die coating method, lip coating method, comma coating method, kiss coating method, flow coating method, dip coating
- Various coating methods such as a coating method may be mentioned.
- the hand-drawn method, the ink-sink method, the photographic method, the transfer method, the laser beam drawing method, the electron beam drawing method, the metal partial evaporation method, the etching method, etc. may be used or combined with other forming methods. Good.
- the thickness of the pattern layer is not particularly limited and can be appropriately set according to product characteristics, but the layer thickness is about 0.1 to 15 ⁇ m.
- the transparent resin layer is not particularly limited as long as it is transparent, and includes any of colorless, transparent, colored, and translucent.
- the material of the transparent resin layer is not limited, but preferably contains a non-halogen thermoplastic resin.
- the thickness of the transparent resin layer is a thickness indicated by T1 in FIG. 2, and is an average value obtained by measuring the thickness of 10 transparent resin layers from a cross-sectional photograph of the decorative sheet. is there.
- Non-halogen thermoplastic resins include low density polyethylene (including linear low density polyethylene), medium density polyethylene, high density polyethylene, ethylene- ⁇ olefin copolymer, homopolypropylene, polymethylpentene, polybutene, ethylene- Olefin-based thermoplastic resins such as propylene copolymer, propylene-butene copolymer, ethylene-vinyl acetate copolymer, saponified ethylene-vinyl acetate copolymer, or mixtures thereof, polyethylene terephthalate, polybutylene terephthalate, Thermoplastic ester resins such as polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, polycarbonate, polyarylate, polymethyl methacrylate, polyethyl methacrylate, polyethyl acrylate, polyacrylate Thermoplastic acrylic resins such as Le butyl, nylon-6, polyamide-based thermoplastic resin such as nylon-
- the transparent resin layer may be colored as long as it has transparency.
- the transparent resin layer contains various additives such as flame retardants, lubricants, antistatic agents, antioxidants, ultraviolet absorbers, and light stabilizers as necessary as long as they have transparency. May be.
- the thickness of the transparent resin layer is not limited, but is preferably 40 ⁇ m or more and 300 ⁇ m or less, more preferably 80 ⁇ m or more and 200 ⁇ m or less, and most preferably 80 ⁇ m or more and 120 ⁇ m or less.
- the decorative sheet of the present invention has a surface protective layer formed on the surface.
- the thickness of the surface protective layer is the thickness indicated by T2 in FIG. 2, and the surface protective layer is composed of the surface protective layer 5 (lower layer) and the surface protective layer 6 (upper layer) as shown in FIG. In the case of layers, it is the total thickness of both layers.
- T2 is preferably 15 ⁇ m or more, and more preferably 20 to 40 ⁇ m.
- T2 is an average value obtained by measuring the thickness of a portion where fine particles having a particle diameter larger than the thickness of the surface protective layer described later are not present at 10 locations.
- the thickness of the surface protective layer can be specified from a cross-sectional photograph of the decorative sheet, as with the transparent resin layer.
- the total thickness of each thickness of these three or more layers is the thickness of a surface protective layer.
- the surface protective layer is formed adjacent to the gloss adjusting layer. Specifically, the back surface of the surface protective layer is adjacent to the gloss adjusting layer.
- the surface protective layer is preferably transparent.
- the surface protective layer preferably contains fine particles (fine particles A) having a particle size larger than the thickness of the surface protective layer.
- the fine particles A act as an additive for improving the scratch resistance of the surface protective layer.
- SEM scanning electron microscope
- the particle diameter of the fine particles A is larger than the thickness of the surface protective layer.
- the decorative sheet is cut in a direction perpendicular to the surface.
- the location of the surface protective layer of the obtained cross section can be confirmed by observing using SEM (scanning electron microscope).
- the fine particles A preferably have one or more fine particles A in the observation of a length of 200 ⁇ m in the confirmation by the SEM.
- the particle diameter of the fine particles A is not particularly limited as long as it is larger than the thickness of the surface protective layer. When the particle diameter of the fine particles A is equal to or smaller than the thickness of the surface protective layer, the surface protective layer has insufficient scratch resistance.
- the particle diameter of the fine particles A is preferably 15 to 50 ⁇ m, more preferably 20 to 45 ⁇ m. If the particle diameter of the fine particles A is too large, the fine particles A may be easily detached from the surface protective layer.
- the content of the fine particles A is preferably 5 to 30 parts by mass with respect to 100 parts by mass of the resin component of the surface protective layer.
- the content of the fine particles A is preferably 5 parts by mass or more and 30 parts by mass or less, and more preferably 10 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the resin component of the surface protective layer.
- the particle diameter of the fine particles A can be measured by SEM (scanning electron microscope).
- SEM scanning electron microscope
- the surface of the cross section obtained by cutting a decorative sheet in a direction perpendicular to the surface It can be measured by photographing an arbitrary portion of the protective layer using an SEM (scanning electron microscope) and averaging the particle diameter (diameter) of the reflected fine particles A.
- the surface protective layer may be composed of either a single layer or multiple layers.
- the layer A located on the most front side (outermost layer) contains fine particles A as shown in FIGS. 1 and 2, and has a particle diameter 2 to 10 ⁇ m larger than the thickness of the outermost layer. It is preferable to contain the fine particles A having.
- the content of the fine particles A is preferably 5 parts by mass or more and 30 parts by mass or less, and more preferably 10 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the resin component of the outermost layer.
- the surface protective layer may contain fine particles (fine particles B) having a particle diameter equal to or smaller than the thickness of the surface protective layer, in addition to the fine particles A, in order to suppress glossiness due to rubbing.
- the method for confirming the fine particles B in the surface protective layer and the method for measuring the particle diameter are the same as those for the fine particles A.
- the content of the fine particles B is preferably 5 parts by mass or more and 30 parts by mass or less with respect to 100 parts by mass of the resin component of the surface protective layer (the layer containing the fine particles B in the case of a multilayer).
- the fine particles A and B are not particularly limited as long as they can impart scratch resistance to the surface protective layer according to the particle size and can exhibit a matting effect, and conventionally known particles can be used.
- the fine particles A and B include inorganic particles such as silica fine particles and silicone resins; organic particles such as crosslinked alkyl, crosslinked styrene, benzoguanamine resin, urea-formaldehyde resin, phenol resin, polyethylene, and nylon. Among these, silica fine particles are preferable.
- the resin component contained in the surface protective layer is not limited, but preferably contains an ionizing radiation curable resin or a two-component curable urethane resin. Substantially those formed from these resins are preferred.
- the surface protective layer is formed from an ionizing radiation curable resin or a two-component curable urethane resin, it is easy to improve the wear resistance, impact resistance, stain resistance, scratch resistance, weather resistance, etc. of the decorative sheet. Among these, ionizing radiation curable resins are more preferable.
- the ionizing radiation curable resin is not particularly limited, and prepolymers (including oligomers) and / or monomers containing radically polymerizable double bonds capable of undergoing a crosslinking reaction upon irradiation with ionizing radiation such as ultraviolet rays and electron beams.
- a transparent resin containing as a main component can be used. These prepolymers or monomers can be used alone or in combination.
- the curing reaction is usually a cross-linking curing reaction.
- a compound having in the molecule a radically polymerizable unsaturated group such as a (meth) acryloyl group or (meth) acryloyloxy group, or a cationically polymerizable functional group such as an epoxy group.
- a polyene / thiol prepolymer based on a combination of polyene and polythiol is also preferable.
- the (meth) acryloyl group means an acryloyl group or a methacryloyl group.
- Examples of the prepolymer having a radically polymerizable unsaturated group include polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, melamine (meth) acrylate, triazine (meth) acrylate, and silicone (meth) acrylate. Etc. These molecular weights are usually preferably about 250 to 100,000.
- Examples of the monomer having a radical polymerizable unsaturated group include, as monofunctional monomers, methyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, phenoxyethyl (meth) acrylate, and the like.
- polyfunctional monomer examples include diethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylolpropane ethylene oxide tri (meth) acrylate, dipentaerythritol tetra ( And (meth) acrylate, dipentaerythritol penta (meth) acrylate, and dipentaerythritol hexa (meth) acrylate.
- Examples of the prepolymer having a cationically polymerizable functional group include prepolymers of epoxy resins such as bisphenol type epoxy resins and novolak type epoxy compounds, and vinyl ether type resins such as fatty acid type vinyl ethers and aromatic vinyl ethers.
- Examples of the thiol include polythiols such as trimethylolpropane trithioglycolate and pentaerythritol tetrathioglycolate.
- Examples of the polyene include those in which allyl alcohol is added to both ends of polyurethane by diol and diisocyanate.
- the ionizing radiation used for curing the ionizing radiation curable resin electromagnetic waves or charged particles having energy capable of causing a curing reaction of molecules in the ionizing radiation curable resin (composition) are used.
- electromagnetic waves or charged particles having energy capable of causing a curing reaction of molecules in the ionizing radiation curable resin (composition) are used.
- ultraviolet rays or electron beams may be used, but visible light, X-rays, ion rays, or the like may be used.
- the two-component curable urethane resin is not particularly limited.
- a polyol component (acrylic polyol, polyester polyol, polyether polyol, epoxy polyol, etc.) having an OH group as a main component and an isocyanate component (tolylene diene) which is a curing agent component.
- Isocyanate, hexamethylene diisocyanate, metaxylene diisocyanate and the like) can be used.
- the resins exemplified above can be used alone or in combination of two or more.
- a UV absorber such as benzotriazole, benzophenone, salicylate, or triazine
- photoinitiators include acetophenones, benzophenones, Michler benzoylbenzoate, ⁇ -aminooxime ester, tetramethylthiuram monosulfide, thioxanthones, aromatic diazonium salts
- n-butylamine, triethylamine, tri-n-butylphosphine and the like can be used as photopolymerization accelerators (sensitizers) such as aromatic sulfonium salts and metallocenes.
- an antibacterial agent may be added to the surface protective layer in order to impart antibacterial properties.
- Antibacterial agents include inorganic antibacterial agents and organic antibacterial agents.
- inorganic antibacterial agents are desirable because they are generally safer than organic antibacterial agents and are excellent in durability and heat resistance.
- Inorganic antibacterial agents are those in which antibacterial metals such as silver, copper and zinc are supported on various inorganic carriers.
- the addition amount of the antibacterial agent is preferably 0.1 to 10 parts by mass with respect to 100 parts by mass of the resin component.
- additives such as solvents, dyes and pigments, fillers such as extenders, antifoaming agents, leveling agents, thixotropic agents, and flame retardants are added to the surface protective layer as necessary. May be.
- the surface protective layer is, for example, after applying an ionizing radiation curable resin or a two-component curable urethane resin on a transparent resin layer or a gloss adjusting layer described later by a known coating method such as gravure coating, roll coating, It can be formed by curing the resin.
- the gloss value of the surface protective layer can be adjusted by a method of selecting the type of each material such as resin components and additives contained in the surface protective layer, a method of appropriately setting the content of each of the above materials, and the like.
- the decorative sheet of the present invention has an embossed concavo-convex pattern from the surface protective layer side, and the convex part is a raised part continuously connected to the concave part, and the convex part does not have the embossed concavo-convex pattern.
- the surface of the surface protective layer of the portion protrudes from the reference surface as a reference surface, and the maximum peak height Rp of the roughness curve defined in JIS B0601 (2001) in the measurement of the surface roughness of the decorative sheet is 30 ⁇ m or more is there.
- the decorative sheet of the present invention is premised on having an embossed concavo-convex pattern that satisfies the above conditions, but it is not necessary for all the embossed concavo-convex patterns to satisfy the above conditions, and an embossed concave pattern that does not have a convex portion. Partial inclusion is allowed.
- the cross-sectional shape of the embossed concavo-convex pattern depends on the type of concavo-convex pattern and the surface property of the embossed plate, but typical cross-sectional shapes can be schematically illustrated in (a) to (d) of FIG.
- the bottom of the embossed uneven pattern has a smooth shape.
- (B) has a shape in which the bottom of the embossed uneven pattern is rounded.
- the bottom of the embossed uneven pattern has a triangular shape.
- (d) has a shape in which the bottom of the embossed concavo-convex pattern is rounded, and a rounded spread is provided in the middle of the concave portion.
- Each of (a) to (d) has a convex portion (a raised portion continuously connected to the concave portion) protruding from the flat surface (reference surface) of the surface protective layer.
- the maximum peak height Rp defined in JIS B0601 (2001) in the surface roughness measurement on the surface of the surface protective layer is 30 ⁇ m or more. Among these, 30 micrometers or more and 100 micrometers or less are preferable.
- Rp is within such a range, even when a deep embossed shape is formed to improve the design and feel of the decorative board, the collapse of the embossed shape when bonded to the adherend is suppressed. . Therefore, not only in the state of the decorative sheet but also in the state of the decorative plate, the design and feel of the embossed uneven pattern are excellent.
- the ten-point average roughness Rzjis defined in JIS B0601 (1994) on the surface of the surface protective layer is preferably 50 ⁇ m or more, and more preferably 50 ⁇ m or more and 150 ⁇ m or less.
- Rzjis is within such a range, it is easy to obtain an effect that is excellent in design and touch.
- the thickness of the decorative sheet (as shown in FIG. 1, the distance from the base sheet to the flat surface of the surface protective layer) is t, and the depth of the embossed uneven pattern is d (where d is JIS B0601 ( 2001)), it is preferably within the range of 0.4 t ⁇ d ⁇ t, and more preferably within the range of 0.5 t ⁇ d ⁇ t.
- d JIS B0601
- the ratio RSm / Rzjis between the average length RSm of the roughness curve element defined in JIS B0601 (2001) on the surface of the surface protective layer and the Rzjis is 20 or less. Preferably, 5 or more and 15 or less are more preferable.
- RSm / Rzjis falls within such a range, it is easy to obtain an effect that the touch is more easily felt (the depth of the embossed uneven pattern and the interval between the uneven patterns are easily felt as the touch).
- the embossing method is not limited, and a preferable method is, for example, a method in which the front surface of the surface protective layer is heated and softened, and is pressed and shaped with an embossing plate and then cooled.
- a known single-wafer or rotary embossing machine is used.
- the concave shape include a wood grain plate conduit groove, a stone plate surface irregularity (such as granite cleaved surface), a cloth surface texture, a satin texture, a grain, a hairline, and a striated groove.
- Transparent adhesive layer A transparent adhesive layer may be formed on the pattern layer in order to enhance the adhesion between the transparent resin layer and the pattern layer.
- the transparent adhesive layer is not particularly limited as long as it is transparent, and includes any of transparent and colorless, colored and translucent.
- the adhesive is not particularly limited, and an adhesive known in the field of decorative sheets can be used.
- known adhesives in the field of decorative sheets include thermoplastic resins such as polyamide resins, acrylic resins and vinyl acetate resins, and thermosetting resins such as urethane resins. These adhesives can be used individually by 1 type or in combination of 2 or more types. Further, a two-component curable polyurethane resin or polyester resin using isocyanate as a curing agent can also be applied.
- the thickness of the transparent adhesive layer is not particularly limited, but the thickness is about 0.1 to 30 ⁇ m, preferably about 1 to 20 ⁇ m.
- a primer layer may be provided on the primer layer transparent resin layer.
- the primer layer can be formed by applying a known primer agent to the surface of the transparent resin layer.
- the primer agent include a urethane resin-based primer agent made of an acrylic-modified urethane resin (acrylic urethane resin), a urethane-cellulose resin (for example, a resin obtained by adding hexamethylene diisocyanate to a mixture of urethane and nitrified cotton) ), A resinous primer agent made of a block copolymer of acrylic and urethane, and the like. You may mix
- the additive examples include fillers such as calcium carbonate and clay, flame retardants such as magnesium hydroxide, antioxidants, lubricants, foaming agents, ultraviolet absorbers, and light stabilizers.
- the blending amount of the additive can be appropriately set according to the product characteristics.
- the thickness of the primer layer is not particularly limited, but is usually about 0.01 to 10 ⁇ m, preferably about 0.1 to 1 ⁇ m.
- a gloss control layer may be formed on the decorative sheet of the present invention.
- the gloss adjusting layer is formed on the decorative sheet of the present invention
- the gloss adjusting layer is formed on the transparent resin layer so as to be adjacent to the surface protective layer. More specifically, the back surface of the gloss adjusting layer is adjacent to the front surface of the transparent resin layer (or the primer layer when the decorative sheet of the present invention has the primer layer).
- the gloss adjusting layer may be formed on a part of the surface on the front surface side (surface side visually recognized after the decorative sheet or decorative plate is applied), and (2 ) It may be formed on the entire front surface side (entire surface).
- the gloss adjustment layer may be (1) partially formed with respect to the surface on the front surface side, and (2) over the entire surface with respect to the surface on the front surface side. It may be formed.
- the gloss value of the gloss adjustment layer is GA
- the gloss value of the surface protective layer is GP
- the relationship between the gloss value GA of the gloss adjusting layer and the gloss value GP of the surface protective layer is GP ⁇ GA.
- the GA and the GP in this specification are values measured in accordance with Japanese Industrial Standards JIS Z8741.
- the gloss value is also referred to as a gloss value or a gloss value.
- the gloss adjustment layer is formed on a part of the front surface side, or (2) the gloss adjustment layer is formed on the entire front surface side. Even so, both the gloss adjusting layer and the surface protective layer are visually recognized on the surface visually recognized after the decorative sheet or decorative plate is applied, and the gloss values of the gloss adjusting layer and the surface protective layer are the same.
- the relationship is GP ⁇ GA. Therefore, when the decorative sheet of the present invention is attached to the adherend, the influence of the uneven shape (duck) generated on the decorative sheet surface is further suppressed, and the design of the decorative sheet or decorative plate is improved. Therefore, the decorative sheet of the present invention in which the gloss adjusting layer is formed is a preferred embodiment as the present invention.
- the area ratio of the area where the gloss adjusting layer occupies per 1 cm 2 of the front surface area of the decorative sheet or decorative plate is preferably 20 to 80%.
- the gloss adjusting layer is formed so that the front surface (surface to be visually recognized) side of the gloss adjusting layer has a pattern shape.
- the gloss adjusting layer has a pattern shape and the ratio of the area is 20 to 80%, the gloss difference between the gloss adjusting layer and the surface protective layer becomes clearer, and as a result, the design is further improved, and The influence of the uneven shape can be further suppressed.
- the type of the pattern is not particularly limited. Specific examples of the pattern include those similar to the various patterns exemplified in the pattern pattern layer described above.
- the ratio of the area of the gloss adjusting layer (area where the gloss adjusting layer is present) occupying per 1 cm 2 of the front surface area of the decorative sheet or decorative plate is defined as the ratio of the gloss adjusting layer. It may be called an occupied area ratio.
- the occupation area ratio of the gloss adjusting layer is calculated from plate-making data at the stage of producing a plate for forming the gloss adjusting layer.
- the occupied area ratio of the gloss adjusting layer can be calculated from the shape of the plate.
- the relationship between the GA and the GP is preferably GA ⁇ GP in order to further suppress the influence of the uneven shape (make the uneven shape more difficult to see). More preferably, GA ⁇ GP and GA ⁇ 5.
- the method for forming the gloss adjusting layer is not particularly limited.
- it is dissolved (or dispersed) in a solvent (or dispersion medium) together with known colorants (dyes, pigments, etc.) and vehicles. It can form with the ink obtained.
- a coloring agent and a solvent the thing similar to the coloring agent and solvent which were illustrated by the coloring agent and solvent in the above-mentioned pattern pattern layer, respectively can be used.
- the ink vehicle for forming the gloss adjusting layer preferably contains 50% by mass or more of urethane resin and / or polyvinyl acetal resin.
- the urethane resin is a polyol component such as an acrylic polyol, a polyester polyol, or a polyether polyol, and an isocyanate component such as tolylene diisocyanate, xylene diisocyanate, diphenylmethane diisocyanate, or the like, isophorone diisocyanate, hexamethylene diisocyanate, Examples include urethane resins obtained by reacting with aliphatic or cycloaliphatic isocyanates such as hydrogenated tolylene diisocyanate (linearly cross-linked or network cross-linked).
- a polyvinyl acetal type resin is obtained by condensation (acetalization) of polyvinyl alcohol and aldehydes.
- the polyvinyl acetal resin include polyvinyl formal (formal resin), polyvinyl acetoacetal, polyvinyl propional, polyvinyl butyral (butyral resin), and polyvinyl hexyl.
- polyvinyl butyral is particularly preferable because it is soluble in a solvent, easily converted into an ink, and has a good appearance of visual unevenness (recognized visually as a recess).
- gloss adjusting resins such as unsaturated polyester resins, acrylic resins, and vinyl chloride-vinyl acetate copolymers may be mixed to adjust the gloss value.
- the mixing ratio is preferably in the range of 10 to 50% by mass with respect to the total amount of the vehicle.
- the ink for forming the gloss adjusting layer may be uncolored or may be colored by adding a colorant such as a pigment.
- an extender pigment may be blended in the ink for forming the gloss adjusting layer.
- the extender pigment is not particularly limited, and is suitably selected from, for example, silica, talc, clay, barium sulfate, barium carbonate, calcium sulfate, calcium carbonate, magnesium carbonate and the like.
- silica which is a material having a high degree of freedom in material design such as oil absorption, particle size, pore volume, etc., and excellent in designability, whiteness, and coating stability as an ink, is preferable.
- Silica is preferred.
- its content is preferably 5 to 15 parts by mass with respect to 100 parts by mass of ink (ink composition) other than the extender.
- the gloss value GA of the gloss adjusting layer is determined by a method for selecting the type of each substance such as the above-described vehicle, gloss adjusting resin, colorant (including extender pigment), a method for appropriately setting the content of each substance, and the like. Can be adjusted.
- the printing method used for forming the gloss adjusting layer for example, the gravure printing method, the offset printing method, the screen printing method, the flexographic printing method, the electrostatic printing method, the inkjet method, and the like, as in the printing method used for forming the above-mentioned pattern pattern layer.
- the printing method etc. are mentioned.
- the method similar to the various coating methods in formation of a pattern layer is mentioned.
- the gloss adjusting layer is preferably formed so as to have a pattern shape.
- the gloss adjusting layer is more preferably formed in a pattern such as a dot shape, a lattice shape, or a wood grain conduit pattern (shape). Since the gloss adjustment layer is formed in the above pattern, the gloss of the area with the gloss adjustment layer is further different from the gloss of the area other than the gloss adjustment layer (area without the gloss adjustment layer). An optical illusion appears as if there is a recess, and it is visually recognized as a unique stereoscopic effect. For this reason, the uneven shape (duck) becomes less noticeable.
- the gloss adjusting layer so as to be interlocked (tuned) with the pattern of the pattern pattern layer.
- the pattern layer is formed in a wood grain pattern
- a decorative sheet having a more excellent design can be obtained by printing the pattern in a wood conduit pattern to form a gloss adjusting layer.
- the thickness (film thickness) of the gloss adjusting layer is preferably 0.5 ⁇ m to 5 ⁇ m in consideration of printability and interaction with the resin composition for forming the surface protective layer.
- a back primer layer may be provided on the back surface of the back primer layer substrate sheet (the surface opposite to the surface on which the pattern layer is laminated). For example, it is effective when a base sheet and a decorative board base material are bonded to produce a decorative board.
- the back primer layer can be formed by applying a known primer to the base material sheet.
- the primer agent include a urethane resin-based primer agent made of an acrylic-modified urethane resin (acrylic urethane resin), a urethane-cellulose resin (for example, a resin obtained by adding hexamethylene diisocyanate to a mixture of urethane and nitrified cotton) ), A resinous primer agent made of a block copolymer of acrylic and urethane, and the like. You may mix
- the additive examples include fillers such as calcium carbonate and clay, flame retardants such as magnesium hydroxide, antioxidants, lubricants, foaming agents, ultraviolet absorbers, and light stabilizers.
- the blending amount of the additive can be appropriately set according to the product characteristics.
- the thickness of the back primer layer is not particularly limited, but is usually about 0.01 to 10 ⁇ m, preferably about 0.1 to 1 ⁇ m.
- Vesicleization of various additives contained in each layer of the decorative sheet Various additives (such as inorganic fillers added to the surface protective layer) added to the above-mentioned layers of the decorative sheet of the present invention are vesicled. It is preferable that The method for vesicleizing various additives is not particularly limited, and can be vesicled by a known method, and among them, the supercritical reverse phase evaporation method is preferable.
- the supercritical reverse phase evaporation method is water-soluble or hydrophilic in a mixture in which a substance that forms the outer membrane of a vesicle is uniformly dissolved in carbon dioxide under supercritical state or temperature or pressure conditions above the supercritical point.
- an aqueous phase containing various additives as an encapsulating substance is added to form a capsule-like vesicle including various additives as an encapsulating substance in a single layer.
- the carbon dioxide in the supercritical state means carbon dioxide in a supercritical state at a critical temperature (30.98 ° C.) and a critical pressure (7.3773 ⁇ 0.0030 MPa) or higher.
- Carbon dioxide under pressure means carbon dioxide under a condition where only the critical temperature or only the critical pressure exceeds the critical condition.
- a single layer lamellar vesicle having a diameter of 50 to 800 nm can be obtained.
- a vesicle is a general term for a substance containing a liquid phase inside a vesicle having a spherically closed membrane structure.
- a substance whose outer membrane is composed of a biological lipid such as phospholipid is called a liposome. .
- the phospholipid examples include phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidic acid, phosphatidylglycerol, phosphatidylinositol, cardiolipin, yolk lecithin, hydrogenated yolk lecithin, glycerophospholipid such as soy lecithin, hydrogenated soy lecithin, sphingomyelin And sphingophospholipids such as ceramide phosphorylethanolamine and ceramide phosphorylglycerol.
- a nonionic surfactant or a dispersing agent such as a mixture of this with cholesterol or triacylglycerol can be used.
- nonionic surfactant examples include polyglycerol ether, dialkyl glycerol, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, sorbitan fatty acid ester, polyoxyethylene polyoxypropylene copolymer, polybutadiene- One or two of polyoxyethylene copolymer, polybutadiene-poly-2-vinylpyridine, polystyrene-polyacrylic acid copolymer, polyethylene oxide-polyethylethylene copolymer, polyoxyethylene-polycaprolactam copolymer, etc. The above can be used.
- the cholesterols include one or more of cholesterol, ⁇ -cholestanol, ⁇ -cholestanol, cholestane, desmosterol (5,24-cholestadien-3 ⁇ -ol), sodium cholate, cholecalciferol, and the like. Can be used.
- the outer membrane of the liposome may be formed from a mixture of a phospholipid and a dispersant.
- the compatibility between the resin composition, which is the main component of each layer, and various additives can be improved by making the outer membrane liposomes formed from phospholipids.
- the decorative board of the present invention is a decorative board composed of a laminate including a decorative board substrate and a decorative sheet in order in the thickness direction, (1)
- the decorative sheet is composed of a laminate including a base sheet, a transparent resin layer, and a surface protective layer in order in the thickness direction, (2)
- the decorative sheet has an embossed uneven pattern from the surface protective layer side, (3)
- the convex part of the embossed uneven pattern is a raised part continuously connected to the concave part, and the convex part is based on the surface of the surface protective layer of the part not having the embossed uneven pattern as a reference surface. Protruding from the surface, (4)
- the maximum peak height Rp of the roughness curve defined in JIS B0601 (2001) on the surface of the surface protective layer is 30 ⁇ m or more. It is characterized by that.
- FIG. 3 shows an example of a decorative board in which the decorative sheet 1 of the present invention (the surface opposite to the surface protective layer side and the decorative board base material 10 are bonded together) is laminated in this order on the decorative board substrate 10.
- a decorative board base material for example, medium density wood fiber board, high density wood fiber board, particle board, softwood plywood, hardwood plywood, early-wood plywood, cork sheet, cork-containing composite base material, thermoplasticity
- resin plate a substrate mainly composed of polyvinyl chloride resin, polypropylene resin, polyethylene resin, acrylic resin, etc.
- examples of coniferous trees include Japanese pine, Karamatsu, Japanese pine, Japanese cedar, Japanese cypress, pine, Sequoia, and spruce.
- Examples of the broad-leaved tree include lawan, china, hippopotamus, sen, beech, oak, and meranti.
- Examples of early mature trees include poplar, falkata, acacia, chameleon, eucalyptus, terminaria and the like.
- the number of laminated wood plywood is not limited, but usually 3 to 7 is preferable, and 5 to 7 is more preferable.
- the adhesive agent used at the time of wood plywood preparation is not limited, either,
- the well-known adhesive for woodworking can be used widely.
- adhesives include, for example, polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ionomer, butadiene-acrylonitrile rubber, neoprene rubber, natural rubber and the like as active ingredients.
- thermosetting adhesives include melamine-based, phenol-based, urea-based (such as vinyl acetate-urea) adhesives.
- the cork sheet is not particularly limited as long as it can give a good walking feeling when a decorative material is used as a flooring material (floor material), for example, and various commercially available products are used for the cork sheet itself. Can do.
- cork sheet used in the present invention not only a so-called natural cork which is a material rich in elasticity obtained by peeling and processing a cork tissue of cork oak bark, but also a so-called synthetic cork made similar to cork is used. Can do.
- the density of the cork sheet is preferably about 0.1 ⁇ 0.5g / cm 3, more preferably about 0.2 ⁇ 0.5g / cm 3.
- the thickness of the cork sheet is preferably 1.5 mm or more and more preferably about 2.0 to 2.5 mm in terms of giving a good walking feeling to the decorative material.
- the cork sheet may be a single layer or a laminate of a plurality of cork sheets having different elastic moduli and densities.
- Examples of the cork-containing composite base material include a composite material obtained by laminating and bonding a cork sheet and another material (for example, medium density wood fiber board, high density wood fiber board).
- the thickness of the decorative board substrate is not limited, but is preferably about 2 to 15 mm, more preferably about 2 to 12 mm.
- the lamination method for laminating the decorative sheet and the decorative board substrate is not limited, and for example, a method of sticking each with an adhesive or the like can be employed. What is necessary is just to select an adhesive agent suitably from well-known adhesive agents according to the kind etc. of to-be-adhered material. Examples include polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ionomer, butadiene-acrylonitrile rubber, neoprene rubber, natural rubber, and the like. These adhesives are used alone or in combination of two or more.
- the present invention also includes an invention of a method for producing a decorative board having a step of laminating at least the decorative sheet of the present invention on the decorative board substrate so that the layer structure is in this order.
- the decorative board manufactured in this way includes, for example, interior materials for buildings such as walls, ceilings, and floors; exterior materials such as balconies and verandas; surface decorative boards and furniture for furniture such as window frames, doors, and handrails; Alternatively, it can be used for a surface decorative plate of a cabinet such as a light electric or OA device. In particular, the decorative board can be suitably used as a floor decorative material.
- Example 1 A polypropylene film having a thickness of 60 ⁇ m is prepared as a base sheet, a back primer layer (thickness: 2 ⁇ m) is formed on the back side of the base sheet, and a pattern is formed so that the thickness of the base sheet is 2 ⁇ m.
- the pattern layer was formed by gravure printing.
- a transparent adhesive layer was formed on the pattern layer using a urethane resin so as to have a thickness of 2 ⁇ m.
- a transparent polypropylene resin sheet was laminated by extrusion lamination so as to have a thickness of 100 ⁇ m to form a transparent resin layer.
- a two-component curable urethane resin was applied to form a primer layer (primer layer for forming a surface protective layer, thickness 2 ⁇ m).
- the urethane acrylate electron beam curable resin (EB resin) is cured on the front surface of the primer layer, it is multilayer coated by a gravure coating method so as to have a thickness of 30 ⁇ m (lower layer 15 ⁇ m, upper layer 15 ⁇ m).
- a surface protective layer was formed by irradiating an electron beam using an electron beam irradiation apparatus under conditions of an acceleration voltage of 175 KeV and 5 Mrad to cure the electron beam curable resin.
- the electron beam curable resin used for forming the lower layer contained 30 parts by mass of silica fine particles (particle diameter 6 ⁇ m) having a particle diameter equal to or smaller than the coating thickness with respect to 100 parts by mass of the electron beam curable resin.
- the electron beam curable resin used for forming the upper layer contains 10 parts by mass of silica fine particles (particle diameter: 12 ⁇ m) having a particle diameter equal to or smaller than the coating thickness with respect to 100 parts by mass of the electron beam curable resin, and 10 parts by mass of silica fine particles (particle diameter 20 ⁇ m) having a particle diameter larger than the coating film thickness was contained with respect to 100 parts by mass of the electron beam curable resin.
- the thickness after curing was 30 ⁇ m (lower layer 15 ⁇ m, upper layer 15 ⁇ m).
- the surface protective layer formed as described above is heated with an infrared non-contact heater to soften the base sheet and the transparent resin layer, and immediately embossed by hot pressure, and the surface protective layer An uneven pattern (wood grain 1) having a wood grain pattern was formed thereon to produce a decorative sheet.
- Example 2 A decorative sheet was prepared in the same manner as in Example 1 except that the embossing was made into a concavo-convex pattern (grain 2).
- Example 3 A polypropylene film having a thickness of 60 ⁇ m is prepared as a base sheet, a back primer layer (thickness: 2 ⁇ m) is formed on the back side of the base sheet, and a pattern is formed so that the thickness of the base sheet is 2 ⁇ m.
- the pattern layer was formed by gravure printing.
- a transparent adhesive layer was formed on the pattern layer using a urethane resin so as to have a thickness of 2 ⁇ m.
- a transparent polypropylene resin sheet was laminated by extrusion lamination so as to have a thickness of 100 ⁇ m to form a transparent resin layer.
- a two-component curable urethane resin was applied to form a primer layer (primer layer for forming a surface protective layer, thickness 2 ⁇ m).
- a urethane acrylate electron beam curable resin (EB resin) is cured and coated with a single layer by gravure coating so as to have a thickness of 15 ⁇ m, in an environment with an oxygen concentration of 200 ppm or less
- a surface protective layer was formed by irradiating an electron beam using an electron beam irradiation apparatus under conditions of an acceleration voltage of 175 KeV and 5 Mrad to cure the electron beam curable resin.
- the electron beam curable resin used in the above contains 10 parts by mass of silica fine particles (particle diameter: 12 ⁇ m) having a particle diameter equal to or smaller than the coating film thickness with respect to 100 parts by mass of the electron beam curable resin, and from the coating film thickness.
- the silica fine particles having a large particle diameter (particle diameter 20 ⁇ m) were contained in an amount of 10 parts by mass with respect to 100 parts by mass of the electron beam curable resin.
- the surface protective layer formed as described above is heated with an infrared non-contact heater to soften the base sheet and the transparent resin layer, and immediately embossed by hot pressure, and the surface protective layer An uneven pattern (wood grain 3) having a wood grain pattern was formed thereon to produce a decorative sheet.
- Example 4 A 100- ⁇ m-thick PET-G resin film is prepared as a base sheet, a back primer layer (thickness: 2 ⁇ m) is formed on the back side of the base sheet, and the thickness of the base sheet is 2 ⁇ m.
- the pattern layer was formed by gravure printing.
- a transparent adhesive layer was formed on the pattern layer using a urethane resin so as to have a thickness of 2 ⁇ m.
- a transparent PET-G resin film having a thickness of 100 ⁇ m was laminated on the adhesive layer by a laminating method to form a transparent resin layer.
- a two-component curable urethane resin was applied to form a primer layer (primer layer for forming a surface protective layer, thickness 2 ⁇ m).
- a urethane acrylate electron beam curable resin (EB resin) is cured and coated with a single layer by gravure coating so as to have a thickness of 15 ⁇ m, in an environment with an oxygen concentration of 200 ppm or less
- a surface protective layer was formed by irradiating an electron beam using an electron beam irradiation apparatus under conditions of an acceleration voltage of 175 KeV and 5 Mrad to cure the electron beam curable resin.
- the electron beam curable resin used in the above contains 10 parts by mass of silica fine particles (particle diameter: 12 ⁇ m) having a particle diameter equal to or smaller than the coating film thickness with respect to 100 parts by mass of the electron beam curable resin, and from the coating film thickness.
- the silica fine particles having a large particle diameter (particle diameter 20 ⁇ m) were contained in an amount of 10 parts by mass with respect to 100 parts by mass of the electron beam curable resin.
- the surface protective layer formed as described above is heated with an infrared non-contact heater to soften the base sheet and the transparent resin layer, and immediately embossed by hot pressure, and the surface protective layer An uneven pattern (wood grain 1) having a wood grain pattern was formed thereon to produce a decorative sheet.
- Comparative Example 1 A polypropylene film having a thickness of 60 ⁇ m is prepared as a base sheet, a back primer layer (thickness: 2 ⁇ m) is formed on the back side of the base sheet, and a pattern is formed so that the thickness of the base sheet is 2 ⁇ m.
- the pattern layer was formed by gravure printing.
- a transparent adhesive layer was formed on the pattern layer using a urethane resin so as to have a thickness of 2 ⁇ m.
- a transparent polypropylene resin sheet was laminated by extrusion lamination so as to have a thickness of 80 ⁇ m to form a transparent resin layer.
- a two-component curable urethane resin was applied to form a primer layer (primer layer for forming a surface protective layer, thickness 2 ⁇ m).
- a urethane acrylate electron beam curable resin (EB resin) is cured and coated with a single layer by gravure coating so as to have a thickness of 15 ⁇ m, in an environment with an oxygen concentration of 200 ppm or less
- a surface protective layer was formed by irradiating an electron beam using an electron beam irradiation apparatus under conditions of an acceleration voltage of 175 KeV and 5 Mrad to cure the electron beam curable resin.
- the electron beam curable resin used in the above contains 10 parts by mass of silica fine particles (particle diameter: 12 ⁇ m) having a particle diameter equal to or smaller than the coating film thickness with respect to 100 parts by mass of the electron beam curable resin, and from the coating film thickness.
- the silica fine particles having a large particle diameter (particle diameter 20 ⁇ m) were contained in an amount of 10 parts by mass with respect to 100 parts by mass of the electron beam curable resin.
- the surface protective layer formed as described above is heated with an infrared non-contact heater to soften the base sheet and the transparent resin layer, and immediately embossed by hot pressure, and the surface protective layer An uneven pattern (wood grain 4) having a wood grain pattern was formed thereon to produce a decorative sheet.
- Comparative Example 2 A decorative sheet was produced in the same manner as in Comparative Example 1 except that the embossing was made into a concavo-convex pattern (wood 5).
- Example 2 represents polypropylene.
- PET-G represents PET synthesized by replacing part of ethylene glycol, which is a raw material of PET (polyethylene terephthalate), with cyclohexanedimethanol.
- the decorative board substrate A had a hardness of 44 ⁇ m when a cylindrical metal having a diameter of 1 cm was pressed at 3 kg / cm 2 .
- a cork composite base material (a laminate of a cork sheet having a thickness of 1 mm and an MDF having a thickness of 4 mm) was prepared as a decorative board base material B.
- the hardness (cork sheet side) of the decorative board substrate B the amount of dent when a cylindrical metal having a diameter of 1 cm was pressed at 3 kg / cm 2 was 122 ⁇ m.
- each decorative board substrates A and B (B is a decorative sheet attached to the cork sheet side).
- each decorative sheet was roll laminated thereon, pressed at a pressure of 3 kg / cm 2 for 30 minutes, and cured at room temperature for 2 days to prepare a decorative board.
- Test example 1 Each decorative board was tested for appearance (crushing embossing, feel and finish (degree of occurrence of duck)), scratch resistance and slipperiness.
- the test method is as follows, and the test results are shown in Table 2 (decorative board substrate A) and Table 3 (decorative board substrate B).
- ⁇ Surface roughness measurement It was measured by SURFCOM FLEX-50A (manufactured by Tokyo Seimitsu Co., Ltd.).
- Rzjis is a ten-point average roughness (Rz94) described in JIS B0601 (1994), and measured according to JIS B0601 (2001) using the above measuring device.
- Rp is the maximum mountain height specified in JIS B0601 (2001).
- Rz is the maximum height specified in JIS B0601 (2001).
- RSm is an average length of roughness curve elements defined in JIS B0601 (2001).
- ⁇ Emboss crush ⁇ The crushing of the emboss was evaluated by the texture of the embossed uneven pattern on the decorative board. Specifically, 15 adult men and women in their 20s to 40s evaluated the embossed uneven pattern on each decorative board by touch.
- each decorative board using the decorative sheets of Examples 1 to 4 having the specific embossed uneven pattern defined by the present invention from the surface protective layer side has a deep embossed shape.
- the embossed shape is suppressed from being crushed when bonded to the adherend, so the feel based on the embossed shape is excellent, and the degree of occurrence of duck is acceptable for actual use. It is in range.
- the decorative sheet of Comparative Example 1 has an embossed shape that is shallow compared to Examples 1 to 4, the embossed shape is not crushed when bonded to the adherend. Due to the shallow embossed shape, the feel is lacking, and when it is bonded to the soft decorative board substrate B in that the maximum peak height Rp of the roughness curve is out of the specified range, the occurrence of duck is clearly recognized.
- the decorative sheet of Comparative Example 2 has a shallow embossed shape as compared with Examples 1 to 4, but Rzjis is 51 ⁇ m and is generally positioned in a deep embossed shape.
- the embossed shape is crushed when bonded to the hard decorative board base material A, and the touch is lowered. When it is bonded to the soft decorative board base B, the occurrence of duck is clearly recognized.
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Abstract
Description
(1)前記化粧シートの表面の十点平均粗さRzjisが40μm以上であり、
(2)前記表面保護層が電離放射線硬化型樹脂を含み、
(3)前記基材シート、前記透明性樹脂層及び前記バッカー層が、いずれも非ハロゲン系熱可塑性樹脂を含み、
(4)前記バッカー層の厚さが120~250μmであり、
(5)前記バッカー層のマルテンス硬さが50~80N/mm2であり、
(6)前記バッカー層は、前記基材シートの裏面に対してバッカー層形成用樹脂組成物を溶融状態で押出し成形することにより積層される、
ことを特徴とする化粧シート。」が開示されている。
1.厚さ方向において順に、基材シートと、透明性樹脂層と、表面保護層とを備える積層体から構成される化粧シートであって、
(1)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(2)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(3)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする化粧シート。
2.前記表面保護層の表面におけるJIS B0601(1994)に規定される十点平均粗さRzjisが50μm以上である、上記項1に記載の化粧シート。
3.前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線要素の平均長さRSmと前記Rzjisとの比RSm/Rzjisが20以下である、上記項2に記載の化粧シート。
4.前記化粧シートの厚さをtとし、前記エンボス凹凸模様の深さをdとした場合に、0.4t≦d≦tの範囲内である、上記項1~3のいずれかに記載の化粧シート。
5.前記表面保護層は、1)前記表面保護層が単層から構成される場合には当該単層の厚さより大きい粒子径の微粒子を含有し、2)前記表面保護層が多層から構成される場合には当該多層を構成する最表層の厚さより大きい粒子径の微粒子を含有する、上記項1~4のいずれかに記載の化粧シート。
6.前記微粒子は、超臨界逆相蒸発法によりベシクル化されている、上記項5に記載の化粧シート。
7.前記表面保護層は、総厚さが15μm以上である、上記項1~6のいずれかに記載の化粧シート。
8.前記表面保護層は、電離放射線硬化型樹脂を含有する、上記項1~7のいずれかに記載の化粧シート。
9.前記基材シート及び前記透明性樹脂層は、非ハロゲン系熱可塑性樹脂を含有する、上記項1~8のいずれかに記載の化粧シート。
10.前記非ハロゲン系熱可塑性樹脂は、オレフィン系熱可塑性樹脂である、上記項9に記載の化粧シート。
11.厚さ方向において順に、化粧板基材と、化粧シートとを備える積層体から構成される化粧板であって、
(1)前記化粧シートは、厚さ方向において順に、基材シートと、透明性樹脂層と、表面保護層とを備える積層体から構成され、
(2)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(3)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(4)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする化粧板。
12.前記化粧板基材は、中密度木質繊維板、高密度木質繊維板、パーティクルボード、針葉樹合板、広葉樹合板、早成樹合板、コルクシート、コルク含有複合基材及び熱可塑性樹脂基材からなる群から選択される少なくとも一種である、上記項11に記載の化粧板。
(1)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(2)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(3)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする。
上記特徴を有することにより、化粧板の意匠性や感触を向上させるために深いエンボス形状を賦型した場合でも、被着材に貼り合わせた際のエンボス形状の潰れが抑制されている。よって、化粧シートの状態だけでなく化粧板の状態でも、エンボス凹凸模様による意匠性及び感触に優れている。このような本発明の化粧シート及び化粧板は、床材用途に用いる化粧シート及び化粧板として有用である。
本発明の化粧シートは、厚さ方向において順に、基材シートと、透明性樹脂層と、表面保護層とを備える積層体から構成される化粧シートであって、
(1)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(2)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(3)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする。
基材シートは、その表面(おもて面)には絵柄模様層等が順次積層される。基材シートの材質は限定されないが、非ハロゲン系熱可塑性樹脂を含有することが好ましい。
絵柄模様層は、化粧シートに所望の絵柄(意匠)を付与する任意層であり、絵柄の種類等は限定的ではない。例えば、木目模様、レザー模様、石目模様、砂目模様、タイル貼模様、煉瓦積模様、布目模様、幾何学図形、文字、記号、抽象模様等が挙げられる。
透明性樹脂層は、透明性であれば特に限定されず、無色透明、着色透明、半透明等のいずれも含む。上記透明性樹脂層の材質は限定されないが、非ハロゲン系熱可塑性樹脂を含有することが好ましい。本発明の化粧シートにおいて、透明性樹脂層の厚さは、図2のT1で示される厚さであり、化粧シートの断面写真から10箇所の透明性樹脂層の厚さを測定した平均値である。
本発明の化粧シートは、表面に表面保護層が形成されている。本発明において、表面保護層の厚さは、図2のT2で示される厚さであり、図2のように表面保護層が表面保護層5(下層)と表面保護層6(上層)の二層で構成される場合には、両層の総厚さである。T2は15μm以上が好ましく、20~40μmがより好ましい。ここで、T2は、後述する表面保護層の厚さより大きい粒子径の微粒子が存在しない部分の厚さを10箇所測定した平均値である。かかる表面保護層の厚さは、前記透明性樹脂層と同様に化粧シートの断面写真から特定できる。なお、表面保護層が三層以上で構成される場合は、これら三層以上の各厚さの総厚さが表面保護層の厚さである。
本発明の化粧シートは、表面保護層側からエンボス凹凸模様を有し、その凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、化粧シートの表面粗さ測定におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である。
透明性樹脂層と絵柄模様層との密着性を高めるため、絵柄模様層上に透明性接着剤層を形成してもよい。透明性接着剤層は、透明性のものであれば特に限定されず、無色透明、着色透明、半透明等のいずれも含む。
透明性樹脂層の上には、プライマー層を設けてもよい。プライマー層は、公知のプライマー剤を透明性樹脂層の表面に塗布することにより形成できる。プライマー剤としては、例えば、アクリル変性ウレタン樹脂(アクリルウレタン系樹脂)等からなるウレタン樹脂系プライマー剤、ウレタン-セルロース系樹脂(例えば、ウレタンと硝化綿の混合物にヘキサメチレンジイソシアネートを添加してなる樹脂)からなるプライマー剤、アクリルとウレタンのブロック共重合体からなる樹脂系プライマー剤等が挙げられる。プライマー剤には、必要に応じて、添加剤を配合してもよい。添加剤としては、例えば、炭酸カルシウム、クレー等の充填剤、水酸化マグネシウム等の難燃剤、酸化防止剤、滑剤、発泡剤、紫外線吸収剤、光安定剤などが挙げられる。添加剤の配合量は、製品特性に応じて適宜設定できる。
本発明の化粧シートには、艶調整層が形成されていてもよい。
基材シートの裏面(絵柄模様層が積層される面と反対側の面)には、必要に応じて、裏面プライマー層を設けてもよい。例えば、基材シートと化粧板基材とを接着して化粧板を作製する際に効果的である。
本発明の化粧シートの上述の各層に添加される各種添加剤(表面保護層に添加される無機フィラー等)は、当該各種添加剤がベシクル化されていることが好ましい。各種添加剤をベシクル化する方法としては特に限定されず、公知の方法によりベシクル化することができ、中でも超臨界逆相蒸発法が好ましい。
本発明の化粧板は、厚さ方向において順に、化粧板基材と、化粧シートとを備える積層体から構成される化粧板であって、
(1)前記化粧シートは、厚さ方向において順に、基材シートと、透明性樹脂層と、表面保護層とを備える積層体から構成され、
(2)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(3)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(4)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする。
基材シートとして60μm厚のポリプロピレンフィルムを用意し、基材シートの裏面に裏面プライマー層(厚さ2μm)を形成して、基材シートのおもて面に、厚さ2μmとなるように絵柄模様層をグラビア印刷により形成した。絵柄模様層上にウレタン系樹脂を用いて厚さ2μmとなるように透明性接着剤層を形成した。接着剤層上に、厚さ100μmとなるように透明ポリプロピレン系樹脂のシートを押し出しラミネート方式で積層し、透明性樹脂層を形成した。
エンボス加工を木目模様の凹凸模様(木目2)とした以外は実施例1と同様にして化粧シートを作製した。
基材シートとして60μm厚のポリプロピレンフィルムを用意し、基材シートの裏面に裏面プライマー層(厚さ2μm)を形成して、基材シートのおもて面に、厚さ2μmとなるように絵柄模様層をグラビア印刷により形成した。絵柄模様層上にウレタン系樹脂を用いて厚さ2μmとなるように透明性接着剤層を形成した。接着剤層上に、厚さ100μmとなるように透明ポリプロピレン系樹脂のシートを押し出しラミネート方式で積層し、透明性樹脂層を形成した。
基材シートとして100μm厚のPET-G系樹脂フィルムを用意し、基材シートの裏面に裏面プライマー層(厚さ2μm)を形成して、基材シートのおもて面に、厚さ2μmとなるように絵柄模様層をグラビア印刷により形成した。絵柄模様層上にウレタン系樹脂を用いて2μm厚さとなるように透明性接着剤層を形成した。接着剤層上に、厚さ100μmの透明PET-G系樹脂フィルムをラミネート方式で積層し、透明性樹脂層を形成した。
基材シートとして60μm厚のポリプロピレンフィルムを用意し、基材シートの裏面に裏面プライマー層(厚さ2μm)を形成して、基材シートのおもて面に、厚さ2μmとなるように絵柄模様層をグラビア印刷により形成した。絵柄模様層上にウレタン系樹脂を用いて2μm厚さとなるように透明性接着剤層を形成した。接着剤層上に、厚さ80μmとなるように透明ポリプロピレン系樹脂のシートを押し出しラミネート方式で積層し、透明性樹脂層を形成した。
エンボス加工を木目模様の凹凸模様(木目5)とした以外は比較例1と同様にして化粧シートを作製した。
実施例2(木目2)及び比較例1(木目4)の断面写真(本明細書への添付は省略)によれば、実施例2はRz=151μmの深いエンボスが施されており、凹凸模様が明確に確認できる。他方、比較例1はRz=36μmのエンボス(実施例2よりも浅いエンボス)が施されており、凹凸模様は明確に確認できない。
2.5mmの中密度木質繊維板(以下、MDF)を化粧板基材Aとして用意した。化粧板基材Aの硬さは、直径1cmの円柱状の金属を3kg/cm2で押しつけた際のへこみ量が44μmであった。
各化粧板について、外観(エンボス潰れ、感触及び仕上がり(ダクの発生の程度))、耐傷性及び滑り性について試験を行った。試験方法は下記の通りであり、試験結果は下記表2(化粧板基材A)、表3(化粧板基材B)に示した。
≪表面粗さ測定≫
SURFCOM FLEX-50A(株式会社東京精密製)により測定した。
≪エンボス潰れ≫
化粧板のエンボス凹凸模様の手触りによりエンボスの潰れを評価した。具体的には、20代~40代の成人男女15人が各化粧板のエンボス凹凸模様を手触りで評価した。
×:上記○に該当しないもの。
≪感 触≫
化粧板のエンボス凹凸模様の感触を手触りにより評価した。具体的には、20代~40代の成人男女15人が各化粧板のエンボス凹凸模様の感触を手触りで評価した。
△:成人男女7~9人が凹凸感に優れると感じたもの、
×:上記○、△に該当しないもの。
≪仕上がり(ダクの発生の程度)≫
各化粧板の表面のダクの発生の程度を目視にて評価した。
△:化粧板基材の凹凸が若干認められるもの(許容範囲)、
×:化粧板基材の凹凸が明確に認められるもの。
≪耐傷性≫
JIS K 5600-5-5(1990)に準拠してクレメンス硬度を測定した。
△:60~80g(許容範囲)、
×:50g以下。
(滑り性)
ポータブル摩擦計 HEIDON トライボギア ミューズ TYPE:94i(新東科学株式会社 製)を用い、接触子を平織り綿で被覆した状態で試験片表面の静摩擦係数の実測値を測定した。
2.基材シート
3.絵柄模様層
4.透明性樹脂層
5.表面保護層(下層)
6.表面保護層(上層)
7.透明性接着剤層
8.プライマー層
9.裏面プライマー層
10.化粧板基材
11.化粧板
A.微粒子A
B.微粒子B
C.エンボス凹凸模様の凸部
D.エンボス凹凸模様の凹部
t.化粧シート厚さ
d.エンボス模様の深さ
T1.透明性樹脂層の厚さ
T2.表面保護層の厚さ
Claims (12)
- 厚さ方向において順に、基材シートと、透明性樹脂層と、表面保護層とを備える積層体から構成される化粧シートであって、
(1)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(2)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(3)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする化粧シート。 - 前記表面保護層の表面におけるJIS B0601(1994)に規定される十点平均粗さRzjisが50μm以上である、請求項1に記載の化粧シート。
- 前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線要素の平均長さRSmと前記Rzjisとの比RSm/Rzjisが20以下である、請求項2に記載の化粧シート。
- 前記化粧シートの厚さをtとし、前記エンボス凹凸模様の深さをdとした場合に、0.4t≦d≦tの範囲内である、請求項1~3のいずれかに記載の化粧シート。
- 前記表面保護層は、1)前記表面保護層が単層から構成される場合には当該単層の厚さより大きい粒子径の微粒子を含有し、2)前記表面保護層が多層から構成される場合には当該多層を構成する最表層の厚さより大きい粒子径の微粒子を含有する、請求項1~4のいずれかに記載の化粧シート。
- 前記微粒子は、超臨界逆相蒸発法によりベシクル化されている、請求項5に記載の化粧シート。
- 前記表面保護層は、総厚さが15μm以上である、請求項1~6のいずれかに記載の化粧シート。
- 前記表面保護層は、電離放射線硬化型樹脂を含有する、請求項1~7のいずれかに記載の化粧シート。
- 前記基材シート及び前記透明性樹脂層は、非ハロゲン系熱可塑性樹脂を含有する、請求項1~8のいずれかに記載の化粧シート。
- 前記非ハロゲン系熱可塑性樹脂は、オレフィン系熱可塑性樹脂である、請求項9に記載の化粧シート。
- 厚さ方向において順に、化粧板基材と、化粧シートとを備える積層体から構成される化粧板であって、
(1)前記化粧シートは、厚さ方向において順に、基材シートと、透明性樹脂層と、表面保護層とを備える積層体から構成され、
(2)前記化粧シートは、前記表面保護層の側からエンボス凹凸模様を有し、
(3)前記エンボス凹凸模様の凸部は、凹部と連続的につながる盛り上がり部分であり、当該凸部は前記エンボス凹凸模様を有していない部分の前記表面保護層の表面を基準面として当該基準面から突出しており、
(4)前記表面保護層の表面におけるJIS B0601(2001)に規定されている粗さ曲線の最大山高さRpが30μm以上である、
ことを特徴とする化粧板。 - 前記化粧板基材は、中密度木質繊維板、高密度木質繊維板、パーティクルボード、針葉樹合板、広葉樹合板、早成樹合板、コルクシート、コルク含有複合基材及び熱可塑性樹脂基材からなる群から選択される少なくとも一種である、請求項11に記載の化粧板。
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JP2019209499A (ja) * | 2018-05-31 | 2019-12-12 | 凸版印刷株式会社 | 化粧シート |
JP7187823B2 (ja) | 2018-05-31 | 2022-12-13 | 凸版印刷株式会社 | 化粧シート |
JP2020116772A (ja) * | 2019-01-21 | 2020-08-06 | 凸版印刷株式会社 | 化粧シート |
EP3950326A4 (en) * | 2019-03-27 | 2022-12-14 | Dai Nippon Printing Co., Ltd. | TRANSPARENT RESIN FILM, DECORATIVE MATERIAL AND METHOD FOR PRODUCTION OF DECORATIVE MATERIAL |
US11993063B2 (en) | 2019-04-18 | 2024-05-28 | Dai Nippon Printing Co., Ltd. | Transparent resin film, transparent resin film production method, and decorative material |
JP2020185768A (ja) * | 2019-05-17 | 2020-11-19 | 凸版印刷株式会社 | 化粧シート |
WO2021246470A1 (ja) * | 2020-06-03 | 2021-12-09 | 凸版印刷株式会社 | 化粧シート |
US20230087440A1 (en) * | 2020-06-03 | 2023-03-23 | Toppan Inc. | Decorative sheet |
JP7528543B2 (ja) | 2020-06-03 | 2024-08-06 | Toppanホールディングス株式会社 | 化粧シート |
WO2023176894A1 (ja) * | 2022-03-15 | 2023-09-21 | 凸版印刷株式会社 | 化粧シート及び化粧材 |
JP2023135272A (ja) * | 2022-03-15 | 2023-09-28 | 凸版印刷株式会社 | 化粧シート及び化粧材 |
JP2023141213A (ja) * | 2022-03-23 | 2023-10-05 | 凸版印刷株式会社 | 化粧シート及び化粧材 |
Also Published As
Publication number | Publication date |
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EP3521018A4 (en) | 2020-04-22 |
JP7103224B2 (ja) | 2022-07-20 |
EP3521018B1 (en) | 2022-01-19 |
US20190248100A1 (en) | 2019-08-15 |
PT3521018T (pt) | 2022-03-03 |
KR20190052714A (ko) | 2019-05-16 |
CN109789677A (zh) | 2019-05-21 |
JPWO2018062340A1 (ja) | 2019-07-11 |
US11207862B2 (en) | 2021-12-28 |
EP3521018A1 (en) | 2019-08-07 |
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