JP6413699B2 - Synchronous gloss mat decorative sheet, synchronous gloss mat decorative material, and method of manufacturing synchronous gloss mat decorative sheet - Google Patents

Description

  The present invention relates to a decorative sheet used in a detached house, an apartment, an apartment, a store, a hotel, etc., and in particular, is a synchronized non-combustible material that is excellent in design especially for use in a nursing care health facility / senior residence market. The present invention relates to a gloss mat decorative sheet, a synchronized gloss mat decorative material, and a method for producing a synchronized gloss mat decorative sheet.

  Currently, wood-patterned and abstract-patterned decorative sheets have been used as the decorative sheets in nursing care facilities for the elderly and senior residences.

  As such a decorative sheet, a grain pattern printing layer is provided on one side of a transparent polyvinyl chloride sheet, and on the other side, a gloss adjusting layer having heat resistance and a grain pattern synchronized with the grain pattern printing layer on the gloss adjustment layer. There has been an application such as a decorative sheet (see Patent Document 1) in which a conduit ink section is provided, and a colored polyvinyl chloride sheet is laminated on the wood grain print layer surface of the transparent polyvinyl chloride sheet and laminated by thermal lamination. .

  However, this decorative sheet uses a polyvinyl chloride sheet as a base material and has a problem in environmental properties.

  As described above, the nursing care facilities for senior citizens and senior residences have a problem that they have a high-class feeling and do not see a decorative sheet as a non-combustible material.

JP-A-6-115299 JP-A-7-119281 Japanese Patent Laid-Open No. 9-156064 Japanese Unexamined Patent Publication No. 2000-043223 JP 2011-083908 A

  The present invention has been made in order to solve the above-mentioned problems, and the problem is that there is a high-class feeling for health care facilities for senior citizens and senior residences, and a decorative sheet that is a non-combustible material is not found. An object of the present invention is to provide a tuned gloss mat decorative sheet.

  The present invention solves the above-mentioned problems, that is, the invention according to claim 1 is a transparent thermoplastic resin layer provided with an emboss on one surface, and an emboss provided with the emboss of the transparent thermoplastic resin layer. A pattern layer having a pattern synchronized with an embossed pattern on a non-embossed surface opposite to the surface; a matte layer provided on the embossed surface provided with the embossed surface of the transparent thermoplastic resin layer; and the matte layer A synchronized gloss mat decorative sheet comprising a glossy negative pattern layer having a negative pattern of the pattern of the pattern layer in a pattern synchronized with a convex portion of the emboss pattern.

  The invention described in claim 2 is a synchronous gloss mat decorative sheet in which a base material layer is bonded to the pattern layer surface of the synchronous gloss mat decorative sheet according to claim 1 via an adhesive layer.

  According to a third aspect of the present invention, there is provided a synchronized gloss mat decorative sheet comprising a primer layer provided on the back surface of the base layer of the synchronized gloss mat decorative sheet according to the second aspect.

  The invention according to claim 4 is characterized in that the transparent thermoplastic resin layer according to any one of claims 1 to 3 is any one of a polyolefin resin, a polybutylene terephthalate resin, and a polyester resin. It is a gloss matte decorative sheet.

  The invention according to claim 5 is a synchronized gloss mat decorative sheet, wherein the transparent thermoplastic resin layer according to any one of claims 1 to 4 has a thickness of 0.025 mm to 0.1 mm. .

  The invention described in claim 6 is a synchronized gloss mat decorative material, wherein a base material is further bonded to the primer layer according to any one of claims 3 to 5.

  In the invention according to claim 7, when embossing is provided on the transparent thermoplastic resin layer according to any one of claims 1 to 5, polypropylene laminated paper or polyethylene terephthalate is provided on the surface opposite to the surface on which embossing is provided. Is a method for producing a tuned gloss matte decorative sheet, characterized in that embossing is provided at the same time as extruding.

  In the invention of claim 8, when embossing is provided in the transparent thermoplastic resin layer, on the surface opposite to the surface on which embossing is provided, polypropylene laminate paper or polyethylene terephthalate is extruded and simultaneously provided with embossing. The method for producing a synchronized gloss mat decorative sheet according to claim 7, wherein an embossed plate having a width direction reduced by 0.05 to 0.01% and a flow direction reduced by 0.5% to 0.1% is used. It is.

  This is a synchronized gloss mat decorative sheet which is a decorative sheet having an atmosphere close to a real wood, and further has a tone expression.

  Furthermore, it is a decorative sheet that passes the application for non-combustible materials.

Specifically, the total calorific value for 20 minutes after the start of heating is 7.2 MJ / m ² or less, and the heat generation rate for 20 minutes after the start of heating does not exceed 200 kW / m ² for 10 seconds or more. The front and back synchronized gloss mat decorative sheet is characterized in that there is no crack reaching the back surface and no harmful deformation for fire prevention within 20 minutes after the start of heating.

  Also, when embossed simultaneous embossing is provided on the transparent thermoplastic resin layer, the width direction of the embossed plate is obtained by laminating polypropylene laminated paper or polyethylene terephthalate on the surface opposite to the surface on which embossing is provided to provide simultaneous embossing. Is reduced from 0.05 to 0.01% and the flow direction is reduced from 0.5% to 0.1%, the dimensional change of the printed sheet becomes 0.2% or less, and the emboss reproducibility and the synchronism between the pattern and the emboss are improved. effective.

It is explanatory drawing which shows the structure of the cross section of one Example of the synchronous gloss mat | matte decorative sheet of this invention. It is explanatory drawing which shows the structure of the cross section of one Example of the synchronization gloss mat | matte decorative sheet which does not provide the glossy negative pattern layer. It is a measurement result of performance evaluation. It is a measurement result of a dimensional change.

  Hereinafter, embodiments of the present invention will be described in detail.

  The one shown in FIG. 1 synchronizes with the embossed pattern on a transparent thermoplastic resin layer 5 provided with an emboss on one surface and a non-embossed surface which is the opposite surface of the embossed surface provided with the emboss of the transparent thermoplastic resin layer 5. The pattern layer 4 having a pattern, the matte layer 6 provided on the embossed surface provided with the embossing of the transparent thermoplastic resin layer 5, and a pattern synchronized with the convex portion of the embossed pattern on the matte layer 6 This is a synchronized gloss matte decorative sheet comprising a glossy negative pattern layer 7 having a negative pattern of the pattern layer 4.

  Moreover, it is a synchronous gloss mat decorative sheet in which the base material layer 2 is bonded to the pattern layer 4 surface of the synchronous gloss mat decorative sheet via the adhesive layer 3.

  In addition, the synchronized gloss mat decorative sheet is characterized in that a primer layer is provided on the back surface of the base layer 2 of the synchronized gloss mat decorative sheet.

  In this case, the primer layer 1 is applied as necessary in order to improve adhesion to an adhesive used for bonding to a substrate (not shown) to which the synchronized gloss mat decorative sheet of the present invention is bonded. It is what is done.

  For example, vinyl acetate emulsion type or two-component curable urethane type adhesives are widely used as adhesives to the most common wood substrates as substrates, so the primer layer 1 is matched to these general-purpose adhesives. It is desirable to have a resin design.

  Specifically, for example, urethane-based, acrylic-based, ethylene-vinyl acetate copolymer, vinyl chloride-vinyl acetate copolymer system, polyester-based and the like can be mentioned. Among them, two liquids by blending polyester polyol and isocyanate compound A curable urethane primer is effective. Further, for example, addition of inorganic powder such as silica, barium sulfate, calcium carbonate, etc. is effective for preventing blocking during winding and storage, and improving adhesive force due to anchoring effect.

  The base material layer 2 in the present invention may be a paper base material, a laminate of paper and a thermoplastic resin layer, or an ordinary thermoplastic resin layer, but a colored resin sheet is bonded to the pattern layer surface of the synchronized gloss mat decorative sheet. A colored thermoplastic resin layer formed by bonding via an agent layer is preferable, for example, polyethylene, polypropylene, polymethylpentene, polybutene, ethylene-propylene copolymer, ethylene-α-olefin copolymer, propylene-α-olefin. In polyolefin resin such as copolymer, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene- (meth) acrylic acid (ester) copolymer, ethylene-unsaturated carboxylic acid copolymer metal Polyolefin resins such as olefin copolymer resins such as Japanese (ionomer) and polyethylene tele Phthalate, polybutylene terephthalate, polytetramethylene terephthalate, polyethylene naphthalate, polyethylene terephthalate-isophthalate copolymer, 1,4-cyclohexanedimethanol copolymerized polyethylene terephthalate, polyarylate, polycarbonate and other polyester resins, poly (meth) Acrylic resins such as acrylonitrile, polymethyl (meth) acrylate, polyethyl (meth) acrylate, polybutyl (meth) acrylate, polyacrylamide, polyamide resins such as 6-nylon, 6,6-nylon, 6,10-nylon, polystyrene Styrene resins such as AS resin and ABS resin, polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, polyvinyl acetal, polyvinyl butyral, etc. Nyl resin, polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, ethylene-perfluoroalkyl vinyl ether copolymer, etc., or a mixture of two or more thereof Copolymers, composites, laminates and the like can be used.

  Among the above-mentioned various thermoplastic resins, in view of the increasing social interest in environmental problems in recent years, it is not desirable to use a resin containing chlorine (halogen) such as polyvinyl chloride resin. It is desirable to employ a halogen-based thermoplastic resin. Among these, from the viewpoints of various physical properties, processability, versatility, economy, etc., it is most desirable to use polyolefin resin or polyester resin (amorphous or biaxial stretching).

  As the above-mentioned polyolefin resin, many types are known as already listed, and it may be used by appropriately selecting from them according to the purpose of use of the glittering decorative sheet. The most suitable for typical use is a polypropylene resin, that is, a propylene-based single or copolymer, specifically, for example, a homopolypropylene resin, a random polypropylene resin, a block polypropylene resin, etc. In addition, a resin or the like in which atactic polypropylene is appropriately blended with them can be used. Further, it may be a copolymer containing an olefin monomer other than propylene, for example, an α-olefin having a polypropylene crystal part and having 2 to 20 carbon atoms other than propylene, preferably ethylene, butene- Examples thereof include a propylene-α-olefin copolymer containing 15 mol% or more of one or more comonomers of 1,4-methylpentene-1, hexene-1 or octene-1. In addition, low density polyethylene, ethylene-α-olefin copolymer, ethylene-propylene copolymer rubber, ethylene-propylene-nonconjugated diene copolymer rubber, styrene-butadiene copolymer, which are usually used for softening polypropylene resins. A modifier such as a coalescence or a hydrogenated product thereof can be appropriately added.

  As the colored thermoplastic resin, a resin such as a polybutylene terephthalate resin, a copolymer type polyester resin (commonly known as PET-G), or an amorphous polyester resin (commonly known as A-PET) can be used. These resins can be used for non-flammable applications because their calorific value during combustion is lower than that of olefin resins.

  For the base material layer 2, for example, a colorant, a filler (silica, talc, titanium oxide, barium sulfate, etc.), an ultraviolet absorber, a light stabilizer, a heat stabilizer, an antioxidant, an antistatic agent, and a lubricant as necessary. One or more selected from various additives such as (stearic acid, metal soap, etc.), flame retardants, antibacterial agents, antifungal agents, lubricants, light scattering agents, gloss adjusting agents, and the like may be added.

  In addition, the base material 1 is often used in order to conceal the color variation or defects on the surface of the substrate or the like to which the glittering decorative sheet is attached, but the substrate 1 is opaquely colored. In order to make use of the surface texture, a transparent or translucent material may be used.

  The thickness of the substrate 1 is preferably about 50 to 100 μm, although it depends on the application. In particular, when applying for non-combustibility, the resin system, thickness, calorific value, etc. are considered.

  The adhesive layer 3 in the present invention is provided as necessary to adhere the base material layer 2 and the transparent thermoplastic resin layer 5, and the adhesiveness of other layers can be used. Can be omitted.

Although there is no restriction | limiting in particular in the kind of adhesive agent used for the adhesive bond layer 3, It is most desirable to use the 2 liquid curing type urethane adhesive which uses an isocyanate type hardening | curing agent. Specifically, for example, polyester polyol or polyether polyol can be used as the main agent, and tolylene diisocyanate, diphenylmethane diisocyanate, xylylene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, or the like can be used as the curing agent.

  The pattern layer 4 in the present invention is provided for imparting design properties by a pattern. A solid layer made of colored solid ink or glitter pigment ink may be provided. In addition, various printing methods such as gravure printing method and offset printing method are used, for example, printing ink or paint obtained by dissolving or dispersing a colorant such as dye or pigment in an appropriate diluent solvent together with an appropriate binder resin. In general, it is formed by various coating methods such as a gravure coating method or a roll coating method.

  As the binder resin, for example, urethane resin, acrylic resin, vinyl chloroacetate resin, polyimide resin, nitrified cotton, or a mixture thereof is often used, but it is not limited thereto. The type of the pattern is arbitrary as desired, for example, a wood grain pattern, a stone pattern, a cloth pattern, an abstract pattern, a geometric pattern, a character or a symbol, a combination thereof, etc., and may be a solid color.

  As what is used for the transparent thermoplastic resin layer 5 of the synchronized gloss mat decorative sheet of the present invention, basically the same one used for a conventional general decorative sheet can be used. Examples of the resin include polyolefin resins such as polyethylene, polypropylene, polymethylpentene, polybutene, ethylene-propylene copolymer, ethylene-α-olefin copolymer, propylene-α-olefin copolymer, and ethylene-vinyl acetate copolymer. Olefin copolymer resins such as polymers, ethylene-vinyl alcohol copolymers, ethylene- (meth) acrylic acid (ester) copolymers, ethylene-unsaturated carboxylic acid copolymer metal neutralized products (ionomers), etc. Polyolefin resin, polyethylene terephthalate, polybutylene terephthalate, polytetramethylene terephthalate, polyethylene naphthalate, polyethylene terephthalate-isophthalate copolymer, 1,4-cyclohexanedimethanol copolymer polyethylene terephthalate Rate, polyarylate, polyester resins such as polycarbonate, poly (meth) acrylonitrile, polymethyl (meth) acrylate, polyethyl (meth) acrylate, polybutyl (meth) acrylate, acrylic resins such as polyacrylamide, 6-nylon, 6, Polyamide resins such as 6-nylon, 6,10-nylon, styrene resins such as polystyrene, AS resin, ABS resin, vinyl resins such as polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, polyvinyl acetal, polyvinyl butyral, Fluorine resins such as polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, ethylene-perfluoroalkyl vinyl ether copolymer, etc., or two or more thereof Mixtures, copolymers, can be used complex, a laminate or the like.

  Among the above-mentioned various thermoplastic resins, in view of the increasing social interest in environmental problems in recent years, it is not desirable to use a resin containing chlorine (halogen) such as polyvinyl chloride resin. It is desirable to employ a halogen-based thermoplastic resin. Among these, from the viewpoints of various physical properties, processability, versatility, economy, etc., it is most desirable to use polyolefin resin or polyester resin (amorphous or biaxial stretching). Of these, polyolefin resins have been pointed out to be conspicuously poor in machinability, although they have been adopted as glittering decorative sheet materials that replace polyvinyl chloride resins. It is a material that can remarkably improve the machinability and exhibits the effect of the present invention most remarkably.

  As the above-mentioned polyolefin resin, many types are known as already listed, and it may be used by appropriately selecting from them according to the purpose of use of the glittering decorative sheet. The most suitable for typical use is a polypropylene resin, that is, a propylene-based single or copolymer, specifically, for example, a homopolypropylene resin, a random polypropylene resin, a block polypropylene resin, etc. In addition, a resin or the like in which atactic polypropylene is appropriately blended with them can be used.

  Further, it may be a copolymer containing an olefin monomer other than propylene, for example, an α-olefin having a polypropylene crystal part and having 2 to 20 carbon atoms other than propylene, preferably ethylene, butene- Examples thereof include a propylene-α-olefin copolymer containing 15 mol% or more of one or more comonomers of 1,4-methylpentene-1, hexene-1 or octene-1. In addition, low density polyethylene, ethylene-α-olefin copolymer, ethylene-propylene copolymer rubber, ethylene-propylene-nonconjugated diene copolymer rubber, styrene-butadiene copolymer, which are usually used for softening polypropylene resins. A modifier such as a coalescence or a hydrogenated product thereof can be appropriately added.

  For the transparent thermoplastic resin layer 5, for example, a filler (silica, talc, titanium oxide, barium sulfate, etc.) UV absorber, light stabilizer, heat stabilizer, antioxidant, antistatic agent, lubricant (as required) 1 type or more chosen from various additives, such as a stearic acid, a metal soap, a flame retardant, an antibacterial agent, an antifungal agent, an anti-friction agent, a light scattering agent, and a gloss adjusting agent, may be added.

  The matte gloss mat decorative sheet of the present invention has a matte layer 6 for adjusting surface gloss, versatility of bonding with various transparent thermoplastic resin layers, and multilayer glossy decorative sheet in the conduit groove. From the viewpoint of deformation followability when bending and scratch resistance, a two-component curable urethane resin is selected as the resin component (binder resin), and a gloss adjusting agent (matting agent) is selected according to the desired luster. Alternatively, it is obtained by applying a composition with or without addition of a delustering agent. When making the surface highly glossy, no gloss adjusting agent is added. Moreover, when making it low glossiness, it adds.

  Examples of the gloss adjusting agent include inorganic substances such as silica, alumina (α-alumina, etc.), calcium carbonate, barium sulfate, kaolinite, aluminosilicate, and organic (resin) fine particles such as polycarbonate, nylon, and urethane resin. The average particle size of the gloss adjusting agent is preferably about 1 to 10 μm, and the addition amount is appropriately selected according to the desired gloss, but is usually about 30% by mass at maximum.

  The two-component curable urethane resin is a urethane resin mainly composed of polyol and isocyanate as a crosslinking agent (curing agent). As the polyol, one having two or more hydroxyl groups in the molecule, for example, polyethylene glycol, polypropylene glycol, acrylic polyol, polyester polyol, polyether polyol, polycarbonate polyol, polyurethane polyol and the like are used. As the isocyanate, a polyvalent isocyanate having two or more isocyanate groups in the molecule is used.

  For example, aromatic isocyanate such as 2,4-tolylene diisocyanate, xylene diisocyanate, 4,4′-diphenylmethane diisocyanate, or 1,6-hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated diphenylmethane diisocyanate, etc. Aliphatic (or alicyclic) isocyanates are used. Alternatively, adducts or multimers of the above various isocyanates can be used. For example, there are tolylene diisocyanate adducts, tolylene diisocyanate trimers, and the like.

  Of the above isocyanates, aliphatic (or alicyclic) isocyanates are preferred from the viewpoint that weather resistance and heat-resistant yellowing can be improved. Specifically, for example, 1,6-hexamethylene diisocyanate can be used. When the particle size of the inorganic pigment in the transparent gloss adjusting layer is 2 to 3 [mu] m and 3 to 4 [mu] m, and the particle size of the convex inorganic pigment is 10 to 15 [mu] m, a more realistic feeling is obtained.

  It is preferable in terms of design that each gloss adjusting agent is added so that the gloss of the mat portion is about 3 to 5 in terms of reflection gloss coefficient.

  When the transparent thermoplastic resin layer 5 is extruded and simultaneously embossed, embossing synchronized with the pattern layer 4 and the glossy negative pattern layer 7 is applied. Simultaneous extrusion embossing has the effect of facilitating embossing because it is difficult for the sheet to stretch or shrink.

  As the glossy negative pattern layer 7 of the present invention, it is desirable to synchronize with the pattern of the pattern layer 4 (see FIGS. 1 and 2). The ionizing radiation curable resin of the material has an energy quantum that can crosslink and polymerize molecules in electromagnetic waves or charged particle beams, that is, a resin composition that crosslinks and cures when irradiated with ultraviolet rays or electron beams. Refers to things. Specifically, it can be appropriately selected from polymerizable monomers and polymerizable oligomers or prepolymers conventionally used as ionizing radiation or ultraviolet curable resin compositions.

  Typically, a (meth) acrylate monomer having a radical polymerizable unsaturated group in the molecule is suitable as the polymerizable monomer, and among them, a polyfunctional (meth) acrylate is preferable. Here, “(meth) acrylate” means “acrylate or methacrylate”. The polyfunctional (meth) acrylate is not particularly limited as long as it is a (meth) acrylate having two or more ethylenically unsaturated bonds in the molecule. Specifically, ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) ) Acrylate, polyethylene glycol di (meth) acrylate, hydroxypivalate neopentyl glycol di (meth) acrylate, dicyclopentanyl di (meth) acrylate, caprolactone modified dicyclopentenyl di (meth) acrylate, ethylene oxide modified diphosphate ( (Meth) acrylate, allylated cyclohexyl di (meth) acrylate, isocyanurate di (meth) acrylate, trimethylolpropane tri (meth) acrylate, ethylene oxide modified trimethylo Propane tri (meth) acrylate, dipentaerythritol tri (meth) acrylate, propionic acid modified dipentaerythritol tri (meth) acrylate, pentaerythritol tri (meth) acrylate, propylene oxide modified trimethylolpropane tri (meth) acrylate, tris ( Acryloxyethyl) isocyanurate, propionic acid modified dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, ethylene oxide modified dipentaerythritol hexa (meth) acrylate, caprolactone modified dipentaerythritol hexa (meth) acrylate, etc. Is mentioned. These polyfunctional (meth) acrylates may be used singly or in combination of two or more.

In the present invention, a monofunctional (meth) acrylate can be used in combination with the polyfunctional (meth) acrylate as long as the object of the present invention is not impaired, for the purpose of lowering the viscosity. Examples of monofunctional (meth) acrylates include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, cyclohexyl ( (Meth) acrylate, 2-ethylhexyl (meth) acrylate,
Examples include lauryl (meth) acrylate, stearyl (meth) acrylate, and isobornyl (meth) acrylate. These monofunctional (meth) acrylates may be used alone or in combination of two or more.

  Next, as the polymerizable oligomer, an oligomer having a radical polymerizable unsaturated group in the molecule, for example, epoxy (meth) acrylate, urethane (meth) acrylate, polyester (meth) acrylate, polyether (meth) acrylate The system etc. are mentioned.

  Here, the epoxy (meth) acrylate oligomer can be obtained, for example, by reacting (meth) acrylic acid with an oxirane ring of a relatively low molecular weight bisphenol type epoxy resin or novolak type epoxy resin and esterifying it. . Further, a carboxyl-modified epoxy (meth) acrylate oligomer obtained by partially modifying this epoxy (meth) acrylate oligomer with a dibasic carboxylic acid anhydride can also be used.

  The urethane (meth) acrylate oligomer can be obtained, for example, by esterifying a polyurethane oligomer obtained by reaction of polyether polyol or polyester polyol and polyisocyanate with (meth) acrylic acid. Examples of polyester (meth) acrylate oligomers include esterification of hydroxyl groups of polyester oligomers having hydroxyl groups at both ends obtained by condensation of polycarboxylic acid and polyhydric alcohol with (meth) acrylic acid, It can be obtained by esterifying the terminal hydroxyl group of an oligomer obtained by adding an alkylene oxide to a carboxylic acid with (meth) acrylic acid. The polyether (meth) acrylate oligomer can be obtained by esterifying the hydroxyl group of the polyether polyol with (meth) acrylic acid.

  Furthermore, other polymerizable oligomers include polybutadiene (meth) acrylate oligomers with high hydrophobicity that have (meth) acrylate groups in the side chain of polybutadiene oligomers, and silicone (meth) acrylate oligomers that have polysiloxane bonds in the main chain. In a molecule such as an aminoplast resin (meth) acrylate oligomer modified with an aminoplast resin having many reactive groups in a small molecule, or a novolak epoxy resin, bisphenol epoxy resin, aliphatic vinyl ether, aromatic vinyl ether, etc. There are oligomers having a cationic polymerizable functional group.

As the transparent thermoplastic resin layer 5, a film having a thickness of 70 μm and a mass of 63.0 g / m ² (transparent polypropylene resin 99.85% by weight, inorganic pigment 0.15% by weight) is extruded simultaneously embossed with the pattern layer 4 and the pattern synchronized. The pattern layer 4 has an inorganic pigment, a bright pigment (pearl pigment) 18.8% by weight, an organic pigment 0.1% by weight, a urethane resin, and an organic resin 17 as the pattern layer 4 on one side opposite to the embossed surface. An ink composed of 0.5% by weight was printed with a dry weight of 4.2 g / m ^{2 and a} woodgrain pattern. Next, 9.6% by weight of inorganic pigment silica and 90.4% by weight of urethane resin are applied as the matte layer 6 on the other surface of the transparent thermoplastic resin layer 5 to a coating amount of 2.5 g / m ² after drying. So that it was coated. The reflection gloss coefficient was 4. Subsequently, as a glossy negative pattern layer 7, an inorganic pigment silica of 0.6% by weight and a urethane resin of 99.4% by weight are applied with a coating amount of 2.7 g / m ² after gravure printing so that the pattern layer 4 and the pattern are synchronized. did.

After drying, a film having a thickness of 60 μm and a mass of 53.8 g / m ² (polypropylene resin 92.2% by weight, inorganic pigment 7.8% by weight) is used as the colored thermoplastic resin layer 2, and a primer layer on one surface thereof As a result, 30.3% by weight of inorganic pigment silica and 69.7% by weight of urethane resin were applied with a dry weight of 1.2 g / m ² gravure. Next, the surface on the opposite side to which the primer layer 1 of the colored thermoplastic resin layer 2 is applied and the pattern layer 4 side of the transparent thermoplastic resin layer 5 are dried on the adhesive layer 3 made of a two-component urethane resin. By coating 5.6 g / m ^{2 by} weight and dry laminating, the front and back synchronized gloss mat decorative sheet 10 of the present invention was prepared.

As the base material layer 2 of Example 1, a colored thermoplastic resin layer having a thickness of 73 μm and a mass of 91.3 g / m ² (polybutylene terephthalate resin 93.7 wt%, inorganic pigment 5.3 wt%) was used. Except for the above, the tuned gloss mat decorative sheet 10 was obtained.

The polypropylene side of the polypropylene laminated paper was laminated and extruded on the side opposite to the resin to be extruded of the base material layer 2 of Example 1, and the polypropylene laminated paper was peeled off immediately after extrusion. The polypropylene laminated paper had a thickness of 78 μm and a mass of 60.8 g / m ² . Otherwise, a front and back synchronized gloss mat decorative sheet 10 produced according to the specifications of Example 1 was obtained.

  Except that the glossy negative pattern layer 7 was deleted, the same front and back synchronized gloss mat decorative sheet 11 as in Example 3 was obtained.

<Performance evaluation>
In Example 1, Example 2 and Example 3, the pattern layer 4 and the glossy negative pattern layer 7 were synchronized to form a front and back synchronized gloss mat decorative sheet 10 having a real feeling close to real wood. In addition, JAS specially processed decorative plywood (Japanese Agricultural Standard for Plywood_Japan Plywood Inspection Association_Established February 2003) Various surface properties (acid resistance, contamination resistance, weather resistance, formaldehyde emission, etc.) In addition, a glossy matte decorative sheet that can be used for building materials with good V-cutting properties is shown in Fig. 4.

  In addition, the dimensional change of the printing sheet was measured. The 1297 mm between the registration marks in the printing plate width direction was reduced by 1.5 mm to 1295.5 mm after printing, but the embossing plate was reduced by 0.06% in the width direction and the flow direction was changed. Since it was reduced by 0.6%, there was no problem with the design. The measuring instrument used was a C-type JIS first grade manufactured by SHINWA, a 2000 mm straight ruler.

  The measurement results are shown in FIG.

DESCRIPTION OF SYMBOLS 1 ... Primer layer 2 ... Base material layer 3 ... Adhesive layer 4 ... Picture layer 5 ... Transparent thermoplastic resin layer 6 ... Matte layer 7 ... Glossy negative picture layer 8 ... Tuning 10 ... Tuning gloss mat decorative sheet 11 ... Tuning gloss Matte decorative sheet

Claims (8)

  A transparent thermoplastic resin layer having an embossed surface on one surface, and a pattern layer having a pattern synchronized with the embossed pattern on a non-embossed surface opposite to the embossed surface having the embossed surface of the transparent thermoplastic resin layer; A matte layer provided on the embossed surface of the transparent thermoplastic resin layer provided with the embossing, and a negative pattern of the design layer on the matte layer in a pattern synchronized with the convex portion of the embossed pattern. A glossy gloss matte decorative sheet comprising a glossy negative pattern layer.   A synchronized gloss mat decorative sheet, wherein the substrate layer is bonded to the pattern layer surface of the synchronized gloss mat decorative sheet according to claim 1 via an adhesive layer.   A synchronized gloss mat decorative sheet comprising a primer layer on the back surface of the base layer of the synchronized gloss mat decorative sheet according to claim 2.   4. The synchronized gloss mat decorative sheet, wherein the transparent thermoplastic resin layer according to claim 1 is any one of a polyolefin resin, a polybutylene terephthalate resin, and a polyester resin.   5. A synchronized gloss mat decorative sheet, wherein the thickness of the transparent thermoplastic resin layer according to claim 1 is 0.025 mm to 0.1 mm.   6. A synchronized gloss mat decorative material, wherein a base material is further bonded to the primer layer according to any one of claims 3 to 5.   When embossing is provided on the transparent thermoplastic resin layer according to any one of claims 1 to 5, an embossing is provided at the same time as extruding and laminating polypropylene laminated paper or polyethylene terephthalate on the surface opposite to the surface on which embossing is provided. A method for producing a tuned gloss matte decorative sheet.   When embossing is provided on the transparent thermoplastic resin layer, the width direction is set from 0.05 to 0.01 when the embossing is provided at the same time as the lamination of the polypropylene laminated paper or the polyethylene terephthalate on the surface opposite to the surface on which the embossing is provided. 8. A method for producing a tuned gloss matte decorative sheet according to claim 7, wherein an embossed plate having a shrinkage of 0.1% and a flow direction of 0.5% to 0.1% is used.