JP6520129B2 - Decorative sheet and method of manufacturing the same, and decorative plate and method of manufacturing the same - Google Patents

Description

  The present invention relates to a decorative sheet and a method of manufacturing the same, and a decorative plate and a method of manufacturing the same.

  Conventionally, the designability is calculated | required by the interior material used for the interior of a building, and a decorative board is used as such an interior material. In particular, on the surface of a decorative board used for a floor surface, scratch resistance as well as design is required.

  Further, in the European and American cultures, it is usual to walk on the ground in the indoor space such as a house, so in consideration of scratch resistance, low-pressure melamine floors are mainly used for indoor floors in the US and Europe. However, the low-pressure melamine floor has a problem that the sound is likely to be heard during walking, and the touch is hard and cold.

  In recent years, a floor (so-called hybrid floor) in which a vinyl chloride resin decorative sheet (vinyl chloride-based decorative sheet) is laminated to a chip board generally represented by cork is generally used instead of a low pressure melamine floor. ing. With chip board, wood chips, bark, small-diameter logs, construction wastes discarded at dismantling construction site, etc. discarded in lumber factory are mechanically crushed into chips, and compression molded with synthetic resin adhesive. It is a base material obtained by shaping | molding to a board | plate material.

  The above-mentioned hybrid floor is environmentally friendly by using a chip board as an adherend, is excellent in that it has sound insulation and heat insulation effects, and has a soft touch feeling, and by bonding decorative sheets, the color at the time of construction Variation is suppressed. However, it is necessary to use a backer layer made of a hard vinyl chloride resin, because sticking up of the vinyl chloride-based decorative sheet is worsened when the vinyl chloride-based decorative sheet is bonded to the adherend. In the sheet, the bonding to the adherend is limited to sheet bonding (that is, in the above-mentioned vinyl chloride-based decorative sheet, it is difficult to adopt roll lamination as the bonding to the adherend). Therefore, the vinyl chloride-based decorative sheet has a problem of poor productivity. Moreover, in Europe, regulations on vinyl chloride resins are in progress in consideration of environmental issues. As a countermeasure against these problems, a decorative board not using a vinyl chloride resin is required.

  On the other hand, in Japan, as a decorative board not using a vinyl chloride resin, for example, a decorative board in which a decorative sheet using an olefin resin is bonded to an adherend is used. However, when such a decorative sheet is attached to an adherend such as a chip board to make a decorative board, there is a problem that the surface irregularities of the chip board appear on the surface of the decorative sheet and the surface of the decorative board is not smooth. (In addition, the uneven | corrugated shape which exposes on the surface of a decorative sheet by the surface asperity shape of a chip board is also called "duct"). In addition, when the smoothness of the surface of the decorative plate is improved by increasing the thickness of the decorative sheet, the decorative sheet is thick and inferior to the embossing shapeability, and when the emboss shape is shallow, it is attached to the adherend At the same time, there is a problem that the embossing occurs and the designability is reduced. In addition, when the thickness of the decorative sheet is increased, when the decorative sheet is stored in a roll state, there is a problem that roll lamination becomes difficult due to rolling.

JP 2003-013587

  The present invention can also be used in Europe where the regulation of vinyl chloride resin is in progress, etc., and when the decorative plate is obtained by bonding to an adherend such as a chip board, the uneven shape of the adherend is a cosmetic It is suppressed to be exposed to the surface of the plate, excellent in embossing shape forming property, suppressed in the embossing collapse when attached to the adherend, excellent in curl resistance, and in a roll state It aims at providing a makeup sheet which can be rolled up.

  As a result of intensive researches by the present inventors, at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet. Specific surface sheet of the decorative sheet, the base sheet, the transparent resin layer and the surface protection layer containing the specific resin, and then including the specific resin by extrusion molding When laminating | stacking the backer layer which has thickness and hardness of (1), it discovers that the said objective can be achieved and came to complete this invention.

That is, the present invention relates to the following decorative sheet and its manufacturing method, and a decorative board and its manufacturing method.
1. Turn having at least a transparent resin layer and a surface protective layer on a substrate sheet, and, a decorative sheet having at least a backer layer on the back surface of the base sheet (1) ten-point average of the surface of the decorative sheet Roughness Rz _jis is 40 μm 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 all contain a non-halogen thermoplastic resin,
(4) The thickness of the backer layer is 120 to 250 μm,
(5) The Martens hardness of the backer layer is 50 to 80 N / mm ² ,
(6) said backer layer is a backer layer forming resin composition formed by arranging the rear surface of the base sheet,
A cosmetic sheet characterized by
2. The have a luster control layer on the transparent resin layer, and the luster control layer is Ru Tei adjacent to the surface protective layer, the decorative sheet according to item 1.
3. The roll-like thing of the decorative sheet as described in said 1 or 2.
4. A decorative board in which the decorative sheet according to Item 1 or 2 or the decorative sheet derived from a roll-like product according to Claim 3 is laminated on an adherend.
5. A method for producing a decorative sheet, wherein at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet, the following steps: 1-3:
(i) A laminated sheet having, in order, at least a transparent resin layer and a surface protective layer on a substrate sheet,
The surface protective layer contains an ionizing radiation curable resin,
Step 1 of obtaining a laminated sheet in which the base sheet and the transparent resin layer both contain a non-halogen thermoplastic resin,
(ii) Step 2 of _setting the ten-point average roughness Rz _jis of the surface of the laminated sheet to 40 μm or more by embossing the surface protective layer of the laminated sheet;
(iii) By extruding the backer layer-forming resin composition in a molten state with respect to the back surface of the base sheet,
The backer layer contains a non-halogen thermoplastic resin,
The thickness of the backer layer is 120 to 250 μm,
The Martens hardness of the backer layer is 50 to 80 N / mm ² .
Step 3 of laminating the backer layer
A method of producing a decorative sheet, comprising:
6. A method for producing a decorative sheet, wherein at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet, the following steps: 1 to 4:
(i) A laminate having at least a transparent resin layer on a substrate sheet,
Step 1 of obtaining a laminate in which the base sheet and the transparent resin layer both contain a non-halogen thermoplastic resin
(ii) a step 2 of embossing the transparent resin layer of the laminate;
(iii) By applying a resin composition for forming a surface protective layer containing an ionizing radiation curable resin on the transparent resin layer,
A laminated sheet having at least a transparent resin layer and a surface protective layer on a substrate sheet,
Step 3 of obtaining a laminated sheet having a ten-point average roughness Rz _jis of the surface of the laminated sheet of 40 μm or more;
(iv) By extruding a backer layer-forming resin composition in a molten state with respect to the back surface of the substrate sheet,
The backer layer contains a non-halogen thermoplastic resin,
The thickness of the backer layer is 120 to 250 μm,
The Martens hardness of the backer layer is 50 to 80 N / mm ² .
Step 4 of laminating the backer layer
A method of producing a decorative sheet, comprising:
7. The manufacturing method of the decorative board which laminates the said decorative sheet on a to-be-adhered material so that the surface protection layer of the decorative sheet obtained by the manufacturing method of the decorative sheet of said claim 5 or 6 turns into an outermost surface layer.

  In the decorative sheet of the present invention, the surface roughness of the decorative sheet is within a specific range, and the base sheet, the transparent resin layer, and the surface protective layer contain a specific resin, and then include a specific resin by extrusion. When laminating the backer layer which has the thickness and hardness of the case, it can be used even in Europe where the regulation of vinyl chloride resin is in progress, and when it is stuck on adherends such as chip board to obtain the decorative board In addition, it is suppressed that the concavo-convex shape of the adherend is exposed on the surface of the decorative plate, and excellent in emboss shapeability, and in the case where the decorative plate is obtained by bonding to the adherend to suppress the embossed crush is suppressed. It is excellent in curl resistance, and can be wound so as to be in a distortion-free roll state without cracking on the surface of the decorative sheet.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which showed an example of the decorative sheet of this invention typically. It is a figure which shows the measuring method of Martens hardness. Specifically, it is a view showing a diamond indenter (a) used in the measurement of Martens hardness in the present specification, a schematic view (b) of pressing operation, and an example (c) of pressing load and displacement. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which showed an example of the decorative sheet of this invention typically. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which showed an example of the decorative sheet of this invention typically. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which showed an example of the decorative sheet of this invention typically.

  Hereinafter, the manufacturing method of the decorative sheet of this invention, the manufacturing method of a decorative sheet, a decorative board, and a decorative board is demonstrated.

<< 1. Cosmetic sheet of the present invention >>
The decorative sheet of the present invention is a decorative sheet in which at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet, ,
(1) The ten-point average roughness Rz _jis of the surface of the decorative sheet is 40 μm 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 all contain a non-halogen thermoplastic resin,
(4) The thickness of the backer layer is 120 to 250 μm,
(5) The Martens hardness of the backer layer is 50 to 80 N / mm ² ,
(6) The backer layer is laminated on the back surface of the base sheet by extruding a backer layer-forming resin composition in a molten state,
It is characterized by

In the decorative sheet of the present invention, the surface roughness of the decorative sheet is in a specific range, and the base sheet, the transparent resin layer and the surface protective layer each contain a specific resin, and are identified by extrusion. When laminating the backer layer of (ie, when satisfying all the requirements of the above (1) to (6)), the following (a) to (f):
(a) It can also be used in Europe where regulations for vinyl chloride resins are in progress,
(b) When a decorative board is obtained by bonding to an adherend such as a chip board, the uneven shape of the adherend is suppressed from appearing on the surface of the decorative board (concave shape of the adherend Is suppressed to keep up with the
(c) Embossed formability is excellent
(d) Embossed crushing is suppressed when bonding to an adherend and obtaining a decorative board,
(e) Excellent curl resistance,
(f) It is possible to wind so as to be in a non-distorted roll state without cracking on the surface of the decorative sheet,
The effect is obtained.

  Hereinafter, the detail of each layer which comprises the decorative sheet of this invention, and the whole decorative sheet is demonstrated concretely.

In the decorative sheet of the present invention, at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet. There are no particular limitations on the layer configuration and resin components that constitute each layer, as long as the requirements of (6) to (6) are satisfied. As the layer configuration, for example, a colored masking layer, a patterned layer, a transparent adhesive layer, a transparent resin layer, a primer layer, and a surface protective layer are sequentially laminated on a substrate sheet, and a substrate sheet There is a decorative sheet in which a backer layer and a back surface primer layer are sequentially laminated on the back side of the layer (note that the backsheet layer has a backer layer, a base sheet, a colored masking layer, a pattern pattern layer, transparency). It can also be said that the adhesive layer, the transparent resin layer, the primer layer, and the surface protective layer are sequentially laminated.
Here, in the present specification, 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 backer layer is laminated as viewed from the base sheet. The direction is referred to as "down" or "back". The "front surface (side)" or the "surface of the surface protective layer (side)" of the decorative sheet or plate means a surface visually recognized after the application of the decorative sheet or plate.

Base sheet The decorative sheet of the present invention has a base sheet. The base sheet contains a non-halogen thermoplastic resin. In addition, it is preferable that the resin component which comprises a base material sheet is a non-halogen-type thermoplastic resin.

  As the non-halogen thermoplastic resin, low density polyethylene (the low density polyethylene includes linear low density polyethylene), medium density polyethylene, high density polyethylene, ethylene-α-olefin copolymer, polypropylene (the polypropylene Homopolypropylene), polymethylpentene, polybutene, ethylene-propylene copolymer, propylene-butene copolymer, ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer saponified product, or a mixture thereof Olefin thermoplastic resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, thermoplastic ester resins such as polycarbonate and polyarylate, polymeta Acrylic thermoplastic resins such as methyl acrylate, ethyl polymethacrylate, ethyl polyacrylate and butyl polyacrylate, polyamide thermoplastic resins such as nylon-6 and nylon-66, or polyimide, polyurethane, polystyrene, An acrylonitrile-butadiene-styrene resin etc. are mentioned. These non-halogen thermoplastic resins may be used alone or in combination of two or more. Among them, an olefin-based thermoplastic resin is preferable in that it is excellent in printability and embossing aptitude of the image pattern layer and is inexpensive.

  The substrate sheet may be colored. In this case, a coloring material (pigment or dye) can be added to the non-halogen thermoplastic resin as described above to color it. As the colorant, for example, inorganic pigments such as titanium dioxide, carbon black, iron oxide and the like, organic pigments such as phthalocyanine blue and the like, and various dyes can also be used. One or more of these may be selected from known or commercially available products. Further, the addition amount of the coloring material may be appropriately set according to the desired color tone and the like.

  The substrate sheet may contain, if necessary, various additives such as a filler, a matting agent, a foaming agent, a flame retardant, a lubricant, an antistatic agent, an antioxidant, an ultraviolet absorber, and a light stabilizer. It may be done.

  Although the thickness of a base material sheet is not specifically limited, 50-100 micrometers is preferable. When the thickness of the substrate sheet is within the above range, the unevenness appearing on the surface of the decorative plate can be further suppressed by the uneven shape of the adherend, and further, the winding is further suppressed when the decorative sheet is stored in a roll state. And roll lamination can be performed more properly.

  The substrate sheet may be subjected to a corona discharge treatment on the surface (front surface) in order to enhance the adhesion of the ink forming the design pattern layer. The method and conditions of the corona discharge treatment may be implemented according to known methods. Moreover, you may give a corona discharge treatment to the back surface of a base material sheet as needed.

Backer Layer The decorative sheet of the present invention has a backer layer on the back side of the base sheet. Here, the backer layer means a buffer layer for shock absorption etc. in the decorative sheet (and the decorative plate). The backer layer contains a non-halogen thermoplastic resin. In addition, it is preferable that the resin component which comprises a backer layer is a non-halogen-type thermoplastic resin.

  As said non-halogen-type thermoplastic resin, resin similar to each resin illustrated by the base material sheet is mentioned. The non-halogen type thermoplastic resins may be used singly or in combination of two or more. Among the non-halogen thermoplastic resins, olefin thermoplastic resins are preferable.

  The backer layer may be colored similarly to the base sheet. As a coloring method, the method similar to the coloring method by a base material sheet is mentioned. The backer layer is made of various additives (filler, matting agent, foaming agent, flame retardant, lubricant, antistatic agent, antioxidant, ultraviolet absorber, light stabilizer, etc.) as in the base sheet. It may be included.

  The backer layer is laminated on the back surface of the base sheet by extruding the backer layer-forming resin composition in a molten state. Specifically, a backer layer containing (1) a resin component (for example, a non-halogen thermoplastic resin etc.) constituting the backer layer, and (2) a colorant, the above-mentioned various additives, etc. as required By extruding the forming resin composition in a molten state, the composition is laminated on the back surface of the base sheet while forming a film. Thereby, a backer layer is formed on the back surface of the substrate sheet. The backer layer adheres to the substrate sheet by the heat of the molten resin during extrusion molding. In the present invention, since the backer layer is laminated by the above-mentioned extrusion molding, even if a recess is formed on the back surface of the substrate sheet by embossing or the like, air is not introduced into the recess and is laminated on the back surface of the substrate sheet with good adhesion. Ru. In addition, in this specification, a "melted state" means the state which can be shape | molded by "extrusion molding" mentioned later.

  A well-known extrusion method can be employ | adopted as extrusion molding. For example, extrusion molding by a T-die extruder, a cylindrical extruder or the like can be mentioned. As the T die, a multi manifold type or a feed block type may be mentioned.

  The thickness of the backer layer is 120 to 250 μm. If the thickness of the backer layer is less than 120 μm, it is not possible to sufficiently suppress the appearance of the adherend on the surface of the decorative plate of the uneven shape. Moreover, when the thickness of a backer layer exceeds 250 micrometers, when a decorative sheet is preserve | saved in a roll state, it will become difficult to roll, and roll lamination will become difficult. The thickness of the backer layer can be appropriately set depending on the use of the final product, the method of use, and the like if it is within the above-mentioned range, but 120 to 180 μm is preferable.

The Martens hardness of the backer layer is 50 to 80 N / mm ² . If the Martens hardness of the backer layer is less than 50 N / mm ^2, it is not possible to sufficiently suppress the appearance of the uneven shape of the adherend on the surface of the decorative plate. In addition, when the Martens hardness of the backer layer exceeds 80 N / mm ² , when the decorative sheet is stored in a roll state, cracks occur on the surface of the decorative sheet. The Martens hardness of the backer layer can be appropriately set depending on the use of the final product, the method of use, and the like if it is within the above-mentioned range, but 50 to 60 N / mm ² is preferable.

In the present specification, Martens hardness is a value measured using a surface film physical property tester (PICODENTOR HM-500, manufactured by Fisher Instruments Inc.), and a specific measuring method is as follows. . In this measurement method, using a diamond indenter (Vickers indenter) shown in FIG. 2 (a), as shown in FIG. 2 (b), the diamond indenter is pushed into the measurement sample, and the diagonal of the pyramidal depression formed on the surface. The surface area A (mm ² ) is calculated from the length of and the hardness is determined by dividing the test load F (N). The pushing conditions are as follows: at room temperature (laboratory environment temperature), as shown in FIG. 2 (c), a load of 0 to 5 mN is first applied for 10 seconds, then held for 5 seconds with a 5 mN load, and finally 5 Perform unloading up to 0 mN in 10 seconds. The hardness obtained by F / A (= F ÷ A) based on the surface area A and the test load F is the above-mentioned Martens hardness. In the present specification, in order to avoid the influence of the hardness of the layers other than the backer layer, the Martens hardness of the cross section of the backer layer was measured. In this case, the decorative sheet is embedded with a resin (cold-curing type epoxy two-component curing resin), allowed to stand at room temperature for 24 hours or longer and cured, and then the cured embedding sample is mechanically polished to form a backer layer. The cross section was exposed, and the Martens hardness of the cross section was measured by pressing the diamond indenter into the cross section.

  The Martens hardness of the backer layer can be appropriately set by 1) appropriately selecting a resin component, 2) mixing a plurality of resin components, 3) adding an elastomer to a resin, and the like.

  The backer layer may be subjected to known easy adhesion treatment such as corona discharge treatment, plasma treatment, degreasing treatment, surface roughening treatment and the like on the adhesive surface, if necessary. In addition, a primer layer (rear surface primer layer) may be further provided on the back surface of the backer layer in consideration of adhesion to the adherend.

  The back surface primer layer can be formed by applying a known primer agent to the backer layer. As a primer agent, for example, a urethane resin based primer consisting of an acrylic modified urethane resin (acrylic urethane based resin) etc., a urethane-cellulose based resin (eg a resin obtained by adding hexamethylene diisocyanate to a mixture of urethane and nitrified cotton) And a resin based primer comprising a block copolymer of acryl and urethane. Additives may be added to the primer if necessary. Examples of the additive include fillers such as calcium carbonate and clay, flame retardants such as magnesium hydroxide, antioxidants, lubricants, foaming agents, ultraviolet light absorbers, light stabilizers and the like. The compounding amount of the additive can be appropriately set according to the product characteristics.

Although the application amount of the primer agent is not particularly limited, it is usually about 0.1 to 100 g / m ² , preferably about 0.1 to 50 g / m ² .

  The thickness of the back surface primer layer is not particularly limited, but is usually about 0.01 to 10 μm, preferably about 0.1 to 1 μm.

Patterned layer The decorative sheet of the present invention may have a patterned layer on a substrate sheet.

  A picture pattern layer is a layer which gives a desired picture (design) to a decorative sheet, and the kind etc. of a picture are not limited. Examples include wood grain patterns, leather patterns, stone patterns, grain patterns, tile patterns, brickwork patterns, grain patterns, geometric figures, characters, symbols, abstract patterns, and the like.

  The formation method of the picture pattern layer is not particularly limited. For example, 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. It may be formed on the surface of the substrate sheet by a printing method. As the ink, an aqueous composition can also be used from the viewpoint of reducing the VOC of the decorative sheet.

  Examples of coloring agents include inorganic pigments such as carbon black, titanium white, zinc flower, red iron oxide, red iron oxide, azo pigments, lake pigments, anthraquinone pigments, quinacridone pigments, phthalocyanine pigments, isoindolinone pigments, dioxazine pigments And organic pigments such as aluminum powder and bronze powder; pearlescent pigments such as titanium oxide-coated mica and bismuth oxychloride; fluorescent pigments; nightlight pigments and the like. These colorants can be used alone or in combination 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.

  As the binder resin, in addition to polyester-based urethane resin subjected to hydrophilic treatment, polyester, polyacrylate, polyvinyl acetate, polybutadiene, polyvinyl chloride, chlorinated polypropylene, polyethylene, polystyrene, polystyrene-acrylate copolymer, rosin derivative An alcohol adduct of a styrene-maleic anhydride copolymer, a cellulose resin and the like can also be used in combination. More specifically, for example, polyacrylamide resin, poly (meth) acrylic acid resin, polyethylene oxide resin, poly N-vinyl pyrrolidone resin, water soluble polyester resin, water soluble polyamide resin, water soluble amino Water-soluble natural polymers such as base resins, water-soluble phenolic resins and other water-soluble synthetic resins; polynucleotides, polypeptides, polysaccharides, etc. can also be used. Further, for example, natural rubber, synthetic rubber, polyvinyl acetate resin, (meth) acrylic resin, polyvinyl chloride resin, polyurethane-polyacrylic resin, etc. modified or a mixture of the above-mentioned natural rubber etc., and the like Resins can also be used. The above binder resins can be used alone or in combination of two or more.

  Examples of the solvent (or dispersion medium) include petroleum-based organic solvents such as hexane, heptane, octane, toluene, xylene, ethylbenzene, cyclohexane and methylcyclohexane; ethyl acetate, butyl acetate, acetic acid-2-methoxyethyl, 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 and propylene glycol; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone Organic solvents; Ether solvents such as diethyl ether, dioxane, tetrahydrofuran, etc .; Dichloromethane, carbon tetrachloride, trichloroethylene, tetrachloroethylene, etc. Containing organic solvent; inorganic solvents such as water. These solvents (or dispersion media) can be used alone or in combination of two or more.

  As a printing method used for formation of a picture pattern layer, a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, an electrostatic printing method, an inkjet printing method etc. are mentioned, for example. In the case of forming a solid patterned pattern layer, for example, a roll coating method, a knife coating method, an air knife coating method, a die coating method, a lip coating method, a comma coating method, a kiss coating method, a flow coating method, dip Various coating methods such as a coating method can be mentioned. In addition, the hand-painting method, the ink flow method, the photography method, the transfer method, the laser beam drawing method, the electron beam drawing method, the partial vapor deposition method such as metal, the etching method, etc. Good.

  The thickness of the image pattern layer is not particularly limited and can be set appropriately according to the product characteristics, but the layer thickness at the time of coating is about 1 to 15 μm, and the layer thickness after drying is about 0.1 to 10 μm.

If necessary, a colored masking layer may be further formed between the colored masking layer substrate sheet and the pattern layer. The colored masking layer is provided when it is desired to hide the ground color of an adherend such as a wood-based substrate from the front surface of the decorative sheet. In the case where the substrate sheet is transparent, of course, it may be formed to stabilize the concealing property even when the substrate sheet is concealed and colored.

  As an ink which forms a coloring concealment layer, it is an ink which forms a pattern pattern layer, and what can be concealed coloring can be used.

  The formation method of a coloring masking layer is preferable the method which can be formed so that the whole base material sheet may be coat | covered (entire surface-like solid form). For example, the above-mentioned 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 method and the like are mentioned as preferable.

  The thickness of the color masking layer is not particularly limited and may be appropriately set according to the product properties, but the thickness at the time of coating is 0.2 to 10 μm, and the thickness after drying is about 0.1 to 5 μm.

Transparent Adhesive Layer In order to enhance the adhesion between the transparent resin layer and the patterned layer, the transparent adhesive layer may be formed on the patterned layer. The transparent adhesive layer is not particularly limited as long as it is transparent, and includes any of colorless and transparent, colored and transparent, and semitransparent.

  The adhesive is not particularly limited, and an adhesive known in the field of decorative sheets can be used. Examples of adhesives known 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. In addition, a two-part curable polyurethane resin or polyester resin having an isocyanate as a curing agent can also be applied.

  The thickness of the transparent adhesive layer is not particularly limited, but the thickness after drying is about 0.1 to 30 μm, preferably about 1 to 20 μm.

Transparent Resin Layer The decorative sheet of the present invention has a transparent resin layer on a substrate sheet.

  The transparent resin layer is not particularly limited as long as it is transparent, and includes any of colorless and transparent, colored and transparent, and semitransparent. The transparent resin layer contains a non-halogen thermoplastic resin. In addition, it is preferable that the resin component which comprises a transparency resin layer is a non-halogen-type thermoplastic resin.

  As said non-halogen-type thermoplastic resin, resin similar to each resin illustrated by the base material sheet is mentioned. The non-halogen type thermoplastic resins may be used singly or in combination of two or more. Among the non-halogen thermoplastic resins, olefin thermoplastic resins are preferable.

  The transparent resin layer may be colored as long as it has transparency, but it is preferable not to mix a colorant.

  The thickness of the transparent resin layer is preferably about 20 to 200 μm, and more preferably 80 to 120 μm. The above range may be exceeded depending on the use of the decorative sheet and the like.

Primer Layer The primer layer may be provided on the transparent resin layer.

  A primer layer can be formed by apply | coating a well-known primer agent to the single side | surface or both surfaces of a transparent resin layer similarly to the above-mentioned back surface primer layer. As a primer agent, the thing similar to the primer agent mentioned by the above-mentioned back surface primer layer can be used. In addition, the primer layer may be blended with an additive as needed. The type and blending amount of the additive are the same as the type and blending amount of the additive in the back surface primer layer.

Although the application amount of the primer agent is not particularly limited, it is usually about 0.1 to 100 g / m ² , preferably about 0.1 to 50 g / m ² .

  The thickness of the primer layer is not particularly limited, but is usually about 0.01 to 10 μm, preferably about 0.1 to 1 μm.

Gloss Adjusting Layer A gloss adjusting layer may be formed on the decorative sheet of the present invention. As a form of the decorative sheet in which the gloss adjustment layer is formed, the form of FIGS. 3-5 is mentioned, for example.

  When 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 a surface protective layer described later. More specifically, the back surface of the gloss adjusting layer is adjacent to the front surface of the transparent resin layer (or, when the decorative sheet of the present invention has the primer layer, the primer layer), and The front surface and / or the side surface of the gloss adjusting layer is adjacent to the surface protective layer.

  The gloss adjustment layer may be formed on a part of the surface of the front surface side (the surface side to be visually recognized after the application of the decorative sheet or the decorative plate) from the viewpoint of the design property, (2 2.) It may be formed on the entire surface (entire surface) of the front surface side. That is, the gloss adjusting layer may be partially formed on the basis of (1) the surface on the front side, and (2) formed over the whole on the basis of the surface on the front side It may be done.

When the (1) gloss adjusting layer is formed on a part of the surface on the front side, (a) the surface protective layer may be formed on a part of the surface on the front side, The (b) surface protective layer may be formed on the entire surface on the front side. When both the gloss adjusting layer and the surface protective layer are formed on a part of the surface on the front side (in the case of (a) of the above (1)), the surface adjusting layer is formed of the gloss adjusting layer It is formed in such a way as to fill the non-existing area (the non-existent area).
In the embodiment of FIG. 3, the gloss adjustment layer is formed on a part of the surface on the front surface side, and the surface protective layer is formed on the entire surface on the front surface side ((1) form of b)). In the embodiment of FIG. 4, the gloss adjusting layer is formed on a part of the surface on the front side, and the surface protective layer is formed on a part of the surface on the front side (above (1)) Form of (a)).

  On the other hand, when the (2) gloss adjusting layer is formed on the entire surface on the front surface side, the surface protective layer is formed on a part of the surface on the front surface side. In the embodiment of FIG. 5, the gloss adjustment layer is formed on the entire surface on the front side, and the surface protective layer is formed on part of the surface on the front side (the above-mentioned embodiment (2)) ).

Here, the gloss value of the gloss adjustment layer is G _A , and the gloss value of the surface protective layer is G _P. If the decorative sheet of the present invention have a luster control layer, the relationship between the gloss value G _P of the surface protective layer described below with gloss values G _A luster control layer is a G _P ≠ G _A. Here, the G _P and the G _A in the present specification is a value measured according to Japanese Industrial Standard JIS Z8741. Specifically, in the present invention, the gloss value is measured under the condition of an incident angle of 60 ° using PG-3D manufactured by Nippon Denshoku Kogyo Co., Ltd. as a gloss meter. In the present specification, the gloss value is also referred to as gloss value or gloss value.

Either (1) when the gloss adjustment layer is formed on a part of the surface on the front side, or (2) when the gloss adjustment layer is formed on the entire surface of the front side Even in the case where the decorative sheet or the decorative plate is viewed after application, both the gloss adjusting layer and the surface protective layer are visible, and the gloss value of each of the gloss adjusting layer and the surface protective layer The relationship is G _P ≠ G _A. Therefore, when the decorative sheet of the present invention is attached to an adherend, the influence of the uneven shape (duct) generated on the surface of the decorative sheet is further suppressed, and the designability of the decorative sheet or the decorative plate is improved. Therefore, the decorative sheet of the present invention in which the gloss adjusting layer is formed is a preferred embodiment of the present invention.

Next, the case where the (1) gloss adjusting layer is formed on a part of the surface on the front side (simply referred to as the case of the above (1)) will be described. In the case of the above (1), the ratio of the area of the area in which the gloss adjustment layer is formed to the area of 1 cm ² of the front surface of the decorative sheet or the decorative plate is preferably 20 to 80%. In this case, it is preferable that the gloss adjustment layer is formed so that the front surface (surface to be recognized) side of the gloss adjustment layer has a pattern. When the gloss adjustment layer is pattern-like and the ratio of the area is 20 to 80%, the gloss difference between the gloss adjustment layer and the surface protective layer becomes clearer, and as a result, the designability is further improved, and The influence of the uneven shape can be further suppressed. In addition, when a gloss adjustment layer is formed so that it may become the said pattern shape, the kind of said pattern is not specifically limited. As a specific type of the pattern, for example, those similar to various patterns exemplified in the above-mentioned pattern layer can be mentioned.

In the present specification, the ratio of the area of the area where the gloss adjustment layer is formed (the area where the gloss adjustment layer is present) to the area of 1 cm ² of the front surface of the decorative sheet or the decorative plate is It may be called an occupied area ratio. The occupied 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 also be calculated from the shape of the plate.

For the (1), in order to the uneven shape of the impact to further suppress (the further inconspicuous irregularities), the relationship between G _A and the G _P is G _{A <G P} is preferred. More preferably, G _A <G _P and G _A ≦ 5.

  Next, the case where the (2) gloss adjusting layer is formed on the entire surface on the front side (simply referred to as the case of the above (2)) will be described. In the case of the above (2), the surface protective layer is formed on a part of the surface on the front side. In this case, it is preferable that the surface protective layer be formed such that the front surface (surface to be viewed) side of the surface protective layer has a pattern. Thereby, the gloss difference between the gloss adjustment layer and the surface protective layer becomes clearer, and as a result, the designability can be further improved and the influence of the uneven shape can be further suppressed. When the surface protective layer is formed to have the pattern shape, the type of the pattern is not particularly limited. As a specific type of the pattern, for example, those similar to various patterns exemplified in the above-mentioned pattern layer can be mentioned.

For the (2), in order to the uneven shape of the impact of further suppressing (inconspicuous further the uneven shape), the relationship of G _A and the G _P | is preferably ≧ 2 _| G _P -G A _{, | G P -G a | ≧} 10 and more preferably (in other words, it is the difference in gloss values of gloss values luster control layer and the surface protective layer is 2 or more preferably, the difference is 10 or more preferable). The relationship between the _{G A} and the _{G P may} be a G A _{<G P,} or _may be a G P _{<G A.} That is, the gloss adjusting layer may have a lower gloss than the surface protective layer, and the surface protective layer may have a lower gloss than the gloss adjusting layer (note that G _A < _GP ). In the case where the gloss adjustment layer is a low gloss layer and the surface protective layer is a low gloss layer when G _P <G _A ). In the case of the above (2), it is preferable that the ratio of the area of the area where the low gloss layer exists to the area of 1 cm ² of the front surface of the decorative sheet or the decorative plate exceeds 50%.

In the present specification, the ratio of the area of the region where the surface protective layer is formed (the region where the surface protective layer is present) to the area of 1 cm ² of the front surface of the decorative sheet or the decorative plate is It may be called an occupied area ratio. The occupied area ratio of the surface protective layer is calculated from plate making data at the stage of producing a plate for forming the surface protective layer. The occupied area ratio of the surface protective layer can also be calculated from the shape of the plate. On the other hand, the ratio of the area of the area where the low gloss layer is exposed (the exposed area ratio of the low gloss layer) to the surface area of 1 cm ^{2 of} the decorative sheet or the decorative plate is (i) low When the glossy layer is a surface protective layer, the occupied area ratio of the surface protective layer becomes the occupied area ratio of the low gloss layer as it is, and (ii) the low gloss layer is a gloss adjustment layer, the above After calculating the occupied area ratio of the surface protective layer, it can be obtained by subtracting (minus) the occupied area ratio of the surface protective layer with respect to 100 (%).

  The method of forming the gloss adjusting layer is not particularly limited, and, for example, it is dissolved (or dispersed) in a solvent (or dispersion medium) together with a known coloring agent (dye, pigment, etc.), vehicle, etc. It can be formed by the ink obtained by As the coloring agent and the solvent, the same coloring agents and solvents as exemplified for the coloring agent and the solvent in the above-mentioned pattern layer can be used, respectively.

  As a vehicle of the ink which forms a gloss adjustment layer, what contains 50 mass% or more of urethane type resin and / or polyvinyl acetal type resin is preferable. The urethane resin includes, as a polyol component, a polyol such as acrylic polyol, polyester polyol and polyether polyol, and as an isocyanate component, an aromatic isocyanate such as tolylene diisocyanate, xylene diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, Listed are urethane resins (which may be crosslinked linearly or crosslinked) which may be reacted with an isocyanate such as an aliphatic or alicyclic isocyanate such as hydrogenated tolylene diisocyanate. be able to. Moreover, polyvinyl acetal type resin is obtained by condensation (acetalization) of polyvinyl alcohol and aldehydes. Examples of polyvinyl acetal resins include polyvinyl formal (formal resin), polyvinyl acetoacetal, polyvinyl propional, polyvinyl butyral (butyral resin), polyvinyl hexial and the like. Among them, polyvinyl butyral is particularly preferable because it is soluble in a solvent, is easy to be inked, and has a good expression of visual unevenness (being visually recognized as a recess) and the like.

  Moreover, in order to adjust a gloss value, you may mix and use gloss adjustment resin, such as unsaturated polyester-type resin, an acrylic resin, a vinyl chloride-vinyl acetate copolymer, as needed. When a gloss control resin is used, the mixing ratio is preferably in the range of 10 to 50% by mass with respect to the total amount of the vehicle. Further, the ink for forming the gloss control layer may be non-colored or may be colored by adding a colorant such as a pigment.

  In addition, an extender pigment may be blended in the ink for forming the gloss adjustment layer. In the case of blending an extender pigment, scattering of light can be promoted and the above-mentioned uneven shape (duct) eliminating effect can be further enhanced. The extender pigment is not particularly limited, but is suitably selected from, for example, silica, talc, clay, barium sulfate, barium carbonate, calcium sulfate, calcium carbonate, magnesium carbonate and the like. Among these, silica, which is a material having a high degree of freedom in material design such as oil absorbency, particle diameter, pore volume, etc., and excellent in designability, whiteness and coating stability as an ink, is preferable, in particular Silica is preferred. In addition, as for the content, when using an extender, 5-15 mass parts is preferable with respect to 100 mass parts of ink (ink composition) other than an extender.

Gloss values G _A luster control layer, vehicle described above, luster control resin, a method for selecting a type of each substance and coloring agent (including extender pigments); and the like; how to set the contents of the above materials properly , Can be adjusted.

  As a printing method used for formation of a gloss adjustment layer, a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, an electrostatic printing method, an inkjet method, for example like the printing method used for formation of the above-mentioned pattern pattern layer The printing method etc. are mentioned. Moreover, when forming a solid-like gloss adjusting layer entirely, the method similar to the various coating methods in formation of a pattern pattern layer is mentioned.

  When the gloss adjustment layer is formed on a part of the surface on the front side (in the case of the above (1)), it is preferable that the gloss adjustment layer is formed in a picture shape. In particular, it is more preferable that the gloss adjusting layer is formed in a dot shape, a lattice shape, a pattern shape of wood grain conduit pattern (shape) or the like. Since the gloss adjustment layer is formed in the above-mentioned pattern, the gloss of the area with the gloss adjustment layer is different from that of the area other than the gloss adjustment layer (the area without the gloss adjustment layer). It produces an illusion of an eye as if there is a recess and is viewed as a unique three-dimensional effect. Therefore, the uneven shape (duct) becomes even less noticeable.

  When the above-mentioned pattern layer is formed on the decorative sheet of the present invention, it is preferable to form the gloss adjusting layer so as to interlock (tune) with the pattern of the pattern layer. For example, when the design pattern layer is formed in a wood grain pattern tone, a decorative sheet having more excellent design can be obtained by forming a gloss adjustment layer by pattern printing in a wood grain conduit pattern tone.

  The thickness (film thickness) of the gloss adjusting layer is preferably 0.5 μm to 5 μm in consideration of the printability and the interaction with the resin composition for forming a surface protective layer.

Surface Protective Layer The decorative sheet of the present invention has a surface protective layer on the transparent resin layer.

  When the decorative sheet of the present invention has the above gloss adjusting layer, the surface protective layer is formed adjacent to the above gloss adjusting layer. Specifically, the back surface and / or the side surface of the surface protective layer are adjacent to the gloss adjusting layer. When the decorative sheet of the present invention has the above gloss adjusting layer, the surface protective layer is preferably transparent.

  The surface protective layer contains an ionizing radiation curable resin (that is, the resin component constituting the surface protective layer contains an ionizing radiation curable resin). The resin component constituting the surface protective layer is preferably an ionizing radiation curable resin.

  The ionizing radiation-curable resin is not particularly limited, and is a prepolymer (including an oligomer) and / or a monomer containing a radically polymerizable double bond capable of undergoing a polymerization crosslinking reaction by irradiation of ionizing radiation such as ultraviolet light and electron beam. Transparency resin which has as a main component can be used. These prepolymers or monomers can be used singly or in combination of two or more. The curing reaction is usually a crosslinking curing reaction.

  Specifically, as the prepolymer or the monomer, a compound having a (meth) acryloyl group, a radically polymerizable unsaturated group such as a (meth) acryloyloxy group, a cationically polymerizable functional group such as an epoxy group or the like in the molecule Can be mentioned. Also preferred is a polyene / thiol based prepolymer which is a combination of polyene and polythiol. Here, the (meth) acryloyl group means an acryloyl group or a methacryloyl group.

  As a prepolymer having a radically polymerizable unsaturated group, for example, polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, melamine (meth) acrylate, triazine (meth) acrylate, silicone (meth) acrylate Etc. As these molecular weight, about 250-100,000 are preferable normally.

  As a monomer which has a radically polymerizable unsaturated group, methyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, phenoxyethyl (meth) acrylate etc. are mentioned as a monofunctional monomer, for example. Moreover, as a polyfunctional monomer, for example, diethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylolpropane ethylene oxide tri (meth) acrylate, dipentaerythritol tetra ( Examples include meta) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate and the like.

  Examples of prepolymers having a cationically polymerizable functional group include prepolymers of epoxy resins such as bisphenol type epoxy resins and novolac epoxy compounds, and prepolymers of vinyl ether resins such as fatty acid vinyl ethers and aromatic vinyl ethers. Further, examples of the thiol include polythiols such as trimethylolpropane trithioglycolate and pentaerythritol tetrathioglycolate. As polyene, what added allyl alcohol to the both ends of the polyurethane by diol and diisocyanate is mentioned, for example.

  As ionizing radiation used to cure 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. Usually, ultraviolet rays or electron beams may be used, but visible light, X-rays, ion beams or the like may be used.

  The ionizing radiation curable resin can be used alone or in combination of two or more.

  Among the ionizing radiation curable resins, electron beam curable resins (EB resins) are preferred. Examples of the electron beam curable resin include urethane acrylate type electron beam curable resin.

  The surface protective layer may contain other resins in addition to the ionizing radiation curable resin. Examples of resins other than ionizing radiation curable resins include two-component curable urethane resins.

  The two-component curable urethane resin is not particularly limited, but among them, a polyol component having an OH group as a main component (acrylic polyol, polyester polyol, polyether polyol, epoxy polyol, etc.) and an isocyanate component as a curing agent component (tolylene) What contains isocyanate, hexamethylene diisocyanate, metaxylene diisocyanate etc. can be used.

  About the resin of the said illustration, 1 type (s) or 2 or more types can be used together and used.

  It is preferable to add an ultraviolet absorber such as benzotriazole, benzophenone, salicylate or triazine to the surface protective layer in order to improve the weather resistance. When the resin layer is cured by irradiation with ultraviolet light, acetophenones, benzophenones, Michler's benzoyl benzoate, α-aminoxime esters, tetramethylthiuram monosulfide, thioxanthones, aromatic diazonium salts as photopolymerization initiators Aromatic sulfonium salts, metallocenes, etc., and n-butylamine, triethylamine, tri-n-butylphosphine, etc. can be used as photopolymerization accelerators (sensitizers).

  Further, an antibacterial agent may be added to the surface protective layer in order to impart antibacterial properties. The antibacterial agents include inorganic antibacterial agents and organic antibacterial agents. In particular, inorganic antibacterial agents are desirable because they are generally safer than organic antibacterial agents, and excellent in durability and heat resistance. The inorganic antibacterial agent is one in which antibacterial metals such as silver and other copper, zinc and the like 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 constituting the surface protective layer.

  If necessary, various additives such as solvents, colorants such as dyes and pigments, fillers such as extenders, antifoaming agents, leveling agents, and agents imparting thixotropy can be added to the surface protective layer. .

  The surface protective layer is, for example, (1) an ionizing radiation-curable resin on a transparent resin layer or on a gloss adjusting layer, and (2) other resins, an ultraviolet absorber, an antibacterial agent, various additives described above, if necessary. The resin composition for forming a surface protective layer containing an agent, etc. may be coated by a known coating method such as gravure coating or roll coating, and then cured by curing the ionizing radiation curable resin. Here, when forming a surface protective layer in a part of surface of the face side of a decorative sheet, the resin composition for surface protective layer formation is partially applied (for example, in the shape of a pattern), and then the above The surface protective layer can be formed by curing the ionizing radiation curable resin in the resin composition. When the surface protective layer is formed on the entire front surface side of the decorative sheet, the resin composition for forming a surface protective layer is coated on the entire surface (over the entire surface), and then ionizing radiation in the resin composition is obtained. The surface protective layer can be formed by curing the curable resin.

The gloss value _GP of the surface protective layer is adjusted by a method of selecting the type of each substance such as a resin component or an additive contained in the surface protective layer; a method of appropriately setting the content of each of the above substances; Can.

  The thickness of the surface protective layer is not particularly limited and may be appropriately set depending on the properties of the final product, but is preferably 0.1 to 50 μm, and more preferably 1 to 30 μm.

Ten-point average roughness Rz _jis
The ten-point average roughness Rz _jis of the surface (surface protective layer surface) of the decorative sheet of the present invention is 40 μm or more. Therefore, the design of the decorative sheet is excellent. The ten-point average roughness Rz _jis is preferably 40 to 120 μm.

In the present invention, by performing (applying) the embossing described later, it is possible to obtain a decorative sheet surface having a ten-point average roughness Rz _{jis of} preferably 40 μm or more. In addition, as described later, embossing may be performed on (1) the transparent resin layer or the gloss adjustment layer, or may be performed on (2) the surface protective layer.

In the present specification, the ten-point average roughness Rz _jis (μm) is a value measured in accordance with JIS B 0601: 2001. Specifically, the ten-point average roughness Rz _jis is _extracted from the cross-sectional curve by the reference length L in the direction of the average line, and the elevation from the highest peak to the fifth highest peak from the average line of the extracted portion It is the sum of the average of the absolute values of (Yp) and the average of the absolute values of the lowest valley bottom to the fifth bottom (Yv).

In the present specification, the ten-point average roughness Rz _jis of the decorative sheet is determined as in the following (A) to (C).
(A) First, cut the decorative sheet into 15 cm x 15 cm.
(B) The surface roughness of the cut out decorative sheet is measured with a surface roughness shape measuring device: Surfcom FLEX 50A (Tokyo Seimitsu Co., Ltd.). The surface roughness measurement of the above-mentioned decorative sheet is a measurement distance of 2 cm, and in the direction in which the embossed pattern is perpendicular to the grain pattern if the embossed pattern is a grain pattern etc, the embossed pattern is arbitrary if the embossed pattern is other than a grain pattern Measure in the direction.
(C) Three Rz _jis values are obtained by performing the process of (B) at any three points, and the lowest value (lower limit value) of the three Rz _jis is determined. If the minimum value of this Rz _jis is 40 (μm) or more, the above requirement (1) in the present invention is satisfied.

The ten-point average roughness Rz _jis refers to the selection of the depth and shape of the embossing plate, the selection of the outermost surface layer (surface protective layer or transparent resin layer) to be embossed, and the heating temperature and pressure at the time of embossing. The adjustment can be made by setting of the pressure, selection of the resin component constituting the transparent resin layer or the surface protective layer, setting of the thickness, and the like.

Embossing In the present invention, a decorative sheet having a surface ten-point average roughness Rz _jis of 40 μm or more is _suitably obtained by embossing. In the present specification, the shape applied by embossing is also referred to as an embossed shape (pattern).

  The emboss shape may be formed by forming the above-mentioned transparent resin layer and then performing embossing from the transparent resin layer side (the manufacturing method 2 of a decorative sheet described later). Moreover, after laminating | stacking the said surface protection layer on the said transparent resin layer, embossing shape may be formed by embossing from the surface protection layer side (The manufacturing method of the decorative sheet mentioned later) 1).

  The embossing method is not particularly limited, and a preferable method is, for example, a method of heat-softening the front surface of the transparent resin layer or the surface protective layer, pressing and shaping with an embossing plate, and cooling it. For embossing, a known sheet-fed or rotary emboss machine is used. The embossed shape is, for example, a floating pattern (embossed pattern of embossed annual ring), a wood grain channel groove, a stone surface unevenness (granite cleavage surface etc.), a cloth surface texture, a satin, a grain, a hairline, a line streak groove Etc.

Roll-like Material of the Present Invention The decorative sheet of the present invention may be wound into a roll. That is, in the present invention, a roll is obtained by winding the decorative sheet of the present invention in a roll. The roll-like product of the present invention is a distortion-free circular roll-like decorative sheet, and the surface of the decorative sheet in the roll-like has no cracks. Furthermore, in the roll-like product of the present invention, curling is suppressed even when unrolled (unrolled). Thus, since the decorative sheet of the present invention can be suitably wound in a roll, it is easy to store as a roll.

  It does not specifically limit as method to wind up the decorative sheet of this invention in roll shape, For example, use of a winding machine, the winding by people, etc. are mentioned. The winding method when using a winding machine is also not particularly limited, for example, center winding, surface winding, center-surface winding. Both can be adopted.

  Although the roll diameter of the roll-shaped material of this invention is not specifically limited, 300 mm-1000 mm are preferable. Moreover, the width | variety (width of a decorative sheet) of the said roll-like thing is although it does not specifically limit, 400 mm-1240 mm are preferable.

  The roll of the present invention includes any of (1) a roll including a core at the center of a circular roll, and (2) a roll without the core at the center of a circular roll. Do. That is, the roll-like article of the present invention may have the above-mentioned core material, and may not have the above-mentioned core material. The material of the core material is not particularly limited, and paper, wood, metal, resin (for example, acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), polyethylene (PE), fiber reinforced plastic (FRP), etc.), etc. It can be mentioned. Moreover, the shape of the cross section of the said core material is not specifically limited, Any, such as circular, a square, a pentagon, a hexagon, etc. may be sufficient. The length of the core is preferably longer than the width of the roll.

<< 2. Manufacturing method 1 of the decorative sheet of the present invention ≫
In the method of producing a decorative sheet (production method 1) of the present invention, at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet. The manufacturing method of the decorative sheet currently made, Comprising: The following processes 1-3:
(i) A laminated sheet having at least a transparent resin layer and a surface protective layer in order on a substrate sheet,
The surface protective layer contains an ionizing radiation curable resin,
Step 1 of obtaining a laminated sheet in which the base sheet and the transparent resin layer both contain a non-halogen thermoplastic resin,
(ii) Step 2 of _setting the ten-point average roughness Rz _jis of the surface of the laminated sheet to 40 μm or more by embossing the surface protective layer of the laminated sheet;
(iii) By extruding the backer layer forming resin composition in a molten state with respect to the back surface of the base sheet,
The backer layer contains a non-halogen thermoplastic resin,
The thickness of the backer layer is 120 to 250 μm,
The Martens hardness of the backer layer is 50 to 80 N / mm ² .
Step 3 of laminating the backer layer
Are included in order. According to the said manufacturing method, the decorative sheet of this invention can be obtained suitably.

  In step 1, a laminate sheet having at least a transparent resin layer and a surface protective layer in order on a substrate sheet is obtained. The laminated sheet is an intermediate of the decorative sheet of the present invention and does not have a backer layer. About the detail of the said base material sheet in the said lamination sheet, a transparency resin layer, and a surface protective layer, the above-mentioned item 1., respectively. The same as the description for the base material sheet, the transparent resin layer, and the surface protective layer in the decorative sheet of the present invention.

  When the laminated sheet is obtained in Step 1, each layer such as a colored masking layer, a patterned layer, a transparent adhesive layer, a primer layer, and a gloss adjustment layer may be formed, if necessary. Regarding the details of each layer, the above-mentioned items 1. It is the same as the description of the color masking layer, the pattern pattern layer, the transparent adhesive layer, the primer layer, and the gloss adjusting layer in the decorative sheet of the present invention.

In step 2, the ten-point average roughness Rz _jis of the surface of the laminated sheet is _set to 40 μm or more by embossing the surface protective layer of the laminated sheet (thereby, the ten-point average roughness Rz _jis of the surface ₎ Is 40 μm or more). About the details of the ten-point average roughness Rz _jis of the surface of the above-mentioned embossing and lamination sheet, the above-mentioned item 1. The embossing and ten-point average roughness Rz _jis in the decorative sheet of the present invention are the same.

  In step 3, the backer layer is laminated on the back surface of the base sheet by extruding the backer layer forming resin composition in a molten state with respect to the back surface of the base sheet. About the details of the process of extruding the backer layer and the resin composition for forming the backer layer, the above-mentioned items 1 and 2 are respectively described. It is the same as the description in the backer layer in the decorative sheet of the present invention. After forming the backer layer, the above-mentioned back surface primer layer may be formed as needed. About the detail of the said back surface primer layer, the above-mentioned item 1. It is the same as the description in the back surface primer layer in the decorative sheet of the present invention.

<< 3. Manufacturing method 2 of the decorative sheet of the present invention >>
In the method of producing a decorative sheet (production method 2) of the present invention, at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet. The manufacturing method of the decorative sheet currently made, Comprising: The following processes 1-4:
(i) A laminate having at least a transparent resin layer on a substrate sheet,
Step 1 of obtaining a laminate in which the base sheet and the transparent resin layer both contain a non-halogen thermoplastic resin
(ii) a step 2 of embossing the transparent resin layer of the laminate;
(iii) By applying the resin composition for forming a surface protective layer containing an ionizing radiation curable resin on the transparent resin layer,
A laminated sheet having at least a transparent resin layer and a surface protective layer on a substrate sheet,
Step 3 of obtaining a laminated sheet having a ten-point average roughness Rz _jis of the surface of the laminated sheet of 40 μm or more;
(iv) By extruding the backer layer forming resin composition in a molten state with respect to the back surface of the base sheet,
The backer layer contains a non-halogen thermoplastic resin,
The thickness of the backer layer is 120 to 250 μm,
The Martens hardness of the backer layer is 50 to 80 N / mm ² .
Step 4 of laminating the backer layer
Are included in order. According to the said manufacturing method, the decorative sheet of this invention can be obtained suitably.

  In step 1, a laminate having at least a transparent resin layer on a substrate sheet is obtained. The laminate is an intermediate of the decorative sheet of the present invention and also an intermediate of a laminated sheet described later. The laminate does not have a backer layer and a surface protective layer. About the details of the above-mentioned substrate sheet and transparency resin layer in the layered product concerned, the above-mentioned item 1. It is the same as the description of the substrate sheet and the transparent resin layer in the decorative sheet of the present invention.

  When the laminate is obtained in Step 1, each layer such as a color masking layer, a pattern pattern layer, a transparent adhesive layer, a primer layer, and a gloss adjustment layer may be formed, if necessary. Regarding the details of each layer, the above-mentioned items 1. It is the same as the description of the color masking layer, the pattern pattern layer, the transparent adhesive layer, the primer layer, and the gloss adjusting layer in the decorative sheet of the present invention.

In step 2, embossing is performed on the transparent resin layer of the laminate. The ten-point average roughness Rz _jis of the surface of the laminate (according to the embossed shape) obtained in step 2 is not particularly limited, and the ten-point average roughness of the laminated sheet or decorative sheet surface after steps 3 and 4 described later _Embossing may be performed on the transparent resin layer so that Rz _jis is 40 μm or more.

In step 3, a laminate sheet having a surface ten-point average roughness Rz _jis of 40 μm or more is coated by applying a resin composition for forming a surface protective layer containing an ionizing radiation-curable resin on the transparent resin layer. obtain. About the detail of the process of coating a surface protection layer and the resin composition for surface protection layer formation, the above-mentioned item 1. It is the same as the description of the surface protective layer in the decorative sheet of the present invention. The laminated sheet is an intermediate of the decorative sheet of the present invention and does not have a backer layer.

  Before applying the resin composition for surface protection layer formation of process 3, you may form each layer, such as a primer layer and a gloss adjustment layer, as needed. Regarding the details of each layer, the above-mentioned items 1. It is the same as the description of the primer layer and the gloss control layer in the decorative sheet of the present invention.

  In step 4, the backer layer is laminated on the back surface of the base sheet by extruding the backer layer forming resin composition in a molten state with respect to the back surface of the base sheet. About the detail of the process of extruding the backer layer and the resin composition for backer layer formation, the above-mentioned item 1. It is the same as the description in the backer layer in the decorative sheet of the present invention. After forming the backer layer, the above-mentioned back surface primer layer may be formed as needed. About the detail of the said back surface primer layer, the above-mentioned item 1. It is the same as the description in the back surface primer layer in the decorative sheet of the present invention.

<< 4. Decorative panel of the present invention and method of manufacturing the same
By laminating the decorative sheet of the present invention on an adherend, a decorative board can be obtained. Moreover, it can also be set as a decorative board by laminating on the adherend the decorative sheet obtained by unwinding the roll-shaped material of this invention. The decorative board of the present invention is obtained by laminating the decorative sheet of the present invention on an adherend so that the surface protective layer of the decorative sheet of the present invention is the outermost surface layer.

  The adherend is not limited, and the same ones as those used for known decorative boards can be used. Examples of the adherend include wood materials, metals, ceramics, plastics, glass and the like. In particular, the decorative sheet of the present invention can be suitably used for wood materials. Specific examples of wood materials include veneers made of various materials such as cedar, mulberry, mulberry, pine, rawan, teak and melapy, wood veneer, wood plywood, particle board, medium density fiber board (MDF) , Chip board, or a composite substrate on which the chip board is laminated. As the wood material, it is preferable to use a chip board or a composite substrate on which the chip board is laminated.

  The lamination method of laminating the decorative sheet and the adherend is not limited, and for example, a method of adhering the decorative sheet to the adherend with an adhesive can be adopted. The adhesive may be appropriately selected from known adhesives according to the type of adherend and the like. For example, in addition to polyvinyl acetate, polyvinyl chloride, a vinyl chloride / vinyl acetate copolymer, an ethylene / acrylic acid copolymer, an ionomer, etc., butadiene / acryl nitrile rubber, neoprene rubber, natural rubber and the like can be mentioned. These adhesives are used individually or in combination of 2 or more types.

  The decorative board manufactured in this manner is, for example, an interior material of a building such as a wall, a ceiling, or a floor; an exterior material such as a balcony or a veranda; a surface decorative board or furniture of a fitting such as a window frame, a door or a handrail; Alternatively, it can be used as a surface decorative plate of a cabinet such as a weak electric power or an OA device. In particular, the decorative board can be suitably used as a floor decorative material.

  Hereinafter, the present invention will be specifically described by showing Examples and Comparative Examples. However, the present invention is not limited to the examples.

Example 1
A 2 μm-thick pattern-patterned layer was formed by printing on the front surface of a base sheet (art ply, manufactured by Mitsubishi Resins Co., Ltd.) made of a colored polypropylene (PP) film having a thickness of 60 μm. A 2 μm-thick transparent adhesive layer made of a urethane resin (Seika Bond E-263 / C-75N, manufactured by Dainichi Seika Kogyo Co., Ltd.) was formed on the patterned layer. A sheet of transparent polypropylene (PP) resin having a thickness of 100 μm (Novatec PP, manufactured by Nippon Polypropylene Corporation) was laminated on the adhesive layer by extrusion lamination to form a transparent resin layer.

  Next, after applying corona discharge treatment to the surface of the transparent resin layer, a two-component curable urethane resin is coated on the transparent resin layer to form a primer layer (a primer layer for forming a surface protective layer, 2 μm thick).

On the front surface of the primer layer, a surface protective layer-forming resin composition composed of a urethane acrylate electron beam curable resin (EB resin) is applied by gravure coating so that the thickness (layer thickness) after curing becomes 15 μm. Then, the electron beam-curable resin was cured by irradiating an electron beam under conditions of an acceleration voltage of 175 KeV and 5 Mrad using an electron beam irradiation apparatus in an environment with an oxygen concentration of 200 ppm or less. Thus, a surface protective layer was formed. The composition of the electron beam curable resin is as follows.
-Bifunctional urethane acrylate (Tg = 25 (° C), molecular weight 1500) 80 parts by mass · 6 -functional urethane acrylate (Tg = 200 (° C) or more, molecular weight 1500) 20 parts by mass The substrate sheet and the transparent resin layer are softened by heating with a heater and immediately embossed (specifically, the embossed pattern is formed by hot pressing with an embossed plate to which a wood grain pattern described later is attached). (The grain pattern (grain 1)) was formed.

  Next, a backer layer was formed on the back surface of the base sheet by laminating a resin layer made of homopolypropylene by a melt extrusion laminating method (specifically, melting a resin composition for forming a backer layer consisting of homopolypropylene) By extruding in the state, a backer layer was formed and laminated on the back surface of the base sheet).

  Furthermore, after performing corona discharge treatment on the back surface of the backer layer, a back surface primer layer (2 μm in thickness) was formed.

Thus, the decorative sheet of Example 1 was obtained.
<Each physical property of the decorative sheet of Example 1>
The ten-point average roughness of the decorative sheet surface (the ten-point average roughness of the embossed shape by the embossed pattern) Rz _jis is 71 μm, the thickness of the backer layer is 120 μm, and the Martens hardness of the backer layer is 50 to 60 N / It was ² mm. In addition, the measurement distance at the time of measuring said Rz _jis was 2 cm. The Martens hardness was measured in the cross-sectional direction of the backer layer. Moreover, when the gloss value (60 degrees of incident angles) of the surface protective layer was measured using PG-3D manufactured by Nippon Denshoku Kogyo Co., Ltd., the gloss value ( _Gp ) was 13.

Example 2
First, a substrate sheet, a pattern layer, an adhesive layer, a transparent resin layer and a primer layer were formed. Each of the layers was formed by the same method as in Example 1.
Then, the ratio of the area of the gloss adjustment layer per 1 cm ² of the surface on the surface protective layer side of the decorative sheet is 50% of the front surface of the primer layer (finally prepared makeup The gloss adjusting layer in a pattern was formed so that the occupied area ratio of the gloss adjusting layer when viewed from the front surface of the sheet was 50%. In addition, the said gloss adjustment layer is a printing ink which mix | blended 10 mass parts of silica particles with respect to 100 mass parts of polyester urethane type printing inks of a number average molecular weight 3000 and glass transition temperature (Tg) -62.8 degreeC of matting ink. The composition was formed by applying a wood grain conduit pattern so that the thickness of the gloss adjustment layer after drying was 2 μm by the gravure printing method.
Next, after forming a surface protection layer on the whole surface on the said gloss adjustment layer, the embossing pattern was further formed with respect to the said surface protection layer side. The surface protective layer and the embossed pattern were formed in the same manner as in Example 1, respectively.
Next, after forming a backer layer on the back surface of the base sheet, a back surface primer layer was formed on the back surface of the backer layer. The backer layer and the back surface primer layer were formed in the same manner as in Example 1, respectively.

  Thus, a decorative sheet of Example 2 was obtained.

Incidentally, prior to applying the surface protective layer-forming resin composition was measured for a gloss value when the light enters at an incident angle of 60 ° relative to the luster control layer, the luster value (G _A) 2 Met. In addition to the decorative sheet, a decorative sheet similar to the decorative sheet of Example 2 was produced for measuring the gloss value of the surface protective layer except that the gloss adjusting layer was not formed. The gloss value (G _P ) was 13 when the gloss value was measured when light was incident on the surface protective layer of the decorative sheet for measurement at an incident angle of 60 °. The gloss value (60 ° incident angle) of the gloss adjusting layer and the surface protective layer in the decorative sheet of Example 2 was determined with the above gloss value. The gloss value (60 ° incident angle) was measured using PG-3D manufactured by Nippon Denshoku Kogyo Co., Ltd.

Example 3
First, a substrate sheet, a pattern layer, an adhesive layer, a transparent resin layer and a primer layer were formed. Each of the layers was formed by the same method as in Example 1.
Next, a gloss adjusting layer (thickness after drying: 2 μm) was formed on the entire surface of the front surface of the primer layer. In addition, in the formation of the said gloss adjustment layer, the ink similar to the matte ink used in Example 2 was used.
Next, on the gloss adjustment layer, the ratio of the area of the surface protection layer per 1 cm ² of the surface protection layer side of the decorative sheet is 30% (in the area where the gloss adjustment layer is exposed) A patterned surface protective layer was formed such that the percentage of the area (the percentage of exposed area of the low gloss layer) was 70%. In addition, in the case of formation of the said surface protective layer, the resin composition similar to the surface protective layer formation resin composition used in Example 1 was used. Further, the curing of the electron beam curable resin was also performed by the same method as in Example 1.
Next, an embossed pattern was formed on the surface protective layer side. The embossed pattern was formed by the same method as in Example 1.
Next, after forming a backer layer on the back surface of the base sheet, a back surface primer layer was formed on the back surface of the backer layer. The backer layer and the back surface primer layer were formed in the same manner as in Example 1, respectively.

  Thus, the decorative sheet of Example 3 was obtained.

Incidentally, prior to applying the surface protective layer-forming resin composition was measured for a gloss value when the light enters at an incident angle of 60 ° relative to the luster control layer, the luster value (G _A) 2 Met. In addition to the decorative sheet, a decorative sheet similar to the decorative sheet of Example 3 was produced for measuring the gloss value of the surface protective layer except that the gloss adjusting layer was not formed. The gloss value (G _P ) was 13 when the gloss value was measured when light was incident on the surface protective layer of the decorative sheet for measurement at an incident angle of 60 °. The gloss value (60 ° incident angle) of the gloss adjusting layer and the surface protective layer in the decorative sheet of Example 3 was determined with the above gloss value. The gloss value (60 ° incident angle) was measured using PG-3D manufactured by Nippon Denshoku Kogyo Co., Ltd.

Examples 4 to 13
(1) The resin component constituting the backer layer, and / or (2) the thickness of the backer layer was suitably changed as shown in Tables 2 and 3. Further, as shown in Tables 2 and 3, (3) embossed patterns of embossed shapes were appropriately changed to grain 1 to 5 shown in Table 4. Furthermore, (4) Martens hardness of the backer layer was suitably changed as shown in Tables 2 and 3. The cosmetic sheets of Examples 4 to 13 were prepared in the same manner as Example 1 except for the above. In addition, the martens hardness of a backer layer can be changed by changing the resin component which comprises (1) backer layer. In Tables 1 to 3, resins A, C and D are homopolypropylenes, and resin B is polyethylene terephthalate (PET).

Comparative Examples 1 to 4
A decorative sheet of Comparative Examples 1 to 4 was obtained in the same manner as Example 1, except that (1) the resin component constituting the backer layer and / or (2) the thickness of the backer layer was appropriately changed. In addition, the martens hardness of a backer layer can be changed by changing the resin component which comprises (1) backer layer.

« Evaluation method 1: Surface condition of decorative board part 1 (Surface unevenness on the adherend evaluation evaluation) »
Apply 6 to 7 g of a water-based emulsion adhesive (Likabond BA-10L (main agent): BA-11B (hardening agent) manufactured by Chuo Rika Kogyo Co., Ltd.) on a cork board, and laminate the decorative sheet, A decorative board was produced by curing for a day. The surface condition of the decorative board was visually observed and evaluated according to the following evaluation criteria. In addition, in the following evaluation criteria, if it is evaluation of A or more, it is a surface state without a problem in an actual use condition.
A: The uneven shape of the adherend was not exposed.
B: The uneven shape of the adherend is slightly exposed.
C: The concavo-convex shape of the adherend is clearly exposed.

« Evaluation method 2: Embossed state of decorative sheet (emboss shape evaluation) »
The state of the embossed pattern of the decorative sheet was visually observed and evaluated according to the following evaluation criteria. In addition, if it is evaluation of A or more in the following evaluation criteria, it is the embossing state which does not have a problem in an actual use condition.
A: The embossed pattern remains clear.
B: The embossed pattern has slightly disappeared.
C: The embossed pattern has almost disappeared.

« Evaluation method 3: Embossed state of decorative board (embossed evaluation) »
The embossed state of the decorative plate, that is, the embossed failure after laminating the decorative sheet to the adherend was evaluated. Specifically, 6 to 7 g of a water-based emulsion adhesive (Licabond BA-10L (main agent): BA-11B (hardening agent) manufactured by Chuo Rika Kogyo Co., Ltd.) is applied on a particle board, and a decorative sheet is laminated. Then, the decorative board was produced by curing at room temperature for 3 days. The embossed state of the decorative board was visually observed and evaluated according to the following evaluation criteria. In addition, in the following evaluation criteria, if it is evaluation of B or more, it is the embossing state which does not have a problem in an actual use condition.
A: The embossed pattern is not crushed.
B: The embossed pattern is slightly crushed.
C: The embossed pattern is almost crushed.

« Evaluation method 4: Curl resistance of decorative sheet »
The decorative sheet was wound around a 3 inch (= 76.2 mm) diameter paper tube and left at room temperature for 1 week. The decorative sheet was unwound, and the state of curl was visually observed and evaluated according to the following evaluation criteria. In addition, in the following evaluation criteria, if it is evaluation of A or more, it has the curling resistance which does not have a problem in an actual use condition.
A: Curling of the decorative sheet hardly occurred.
B: The decorative sheet is slightly curled.
C: The decorative sheet is clearly curled.

« Evaluation method 5: Roll state of decorative sheet (roll shape and evaluation of cracks on the surface of decorative sheet) »
A rolled decorative sheet was obtained by winding a sheet with a width of 3 bars (= 909.09 mm) for 100 m on a paper tube with a diameter of 3 inches (= 76.2 mm). The roll-shaped decorative sheet was visually observed and evaluated according to the following evaluation criteria. In addition, in the following evaluation criteria, if it is evaluation of B or more, there is no problem in an actual use condition.
A: The roll shape is circular without distortion, and the surface of the decorative sheet is free of cracks.
B: The roll shape is a slightly distorted circular shape, and there are no cracks on the surface of the decorative sheet.
C: (1) The roll shape is a distorted circle, (2) the decorative sheet surface has a crack even if the roll shape is not distorted, or (3) the decorative sheet is made into a roll shape I can not do it.

« Evaluation method 6: Surface condition of decorative plate 2 (Evaluation of surface roughness of the adherend with rougher surface roughness) »
An adherend having a surface roughness rougher than that of a cork board (adherent having a surface roughness Rz twice or more than that of a normal adherend) was prepared. Next, an aqueous emulsion adhesive (Likabond BA-10L (main agent): BA-11B (hardening agent) manufactured by Chuo Rika Kogyo Co., Ltd.) is applied on the adherend in an amount of 6 to 7 g / size and then Example Each decorative sheet was produced by laminating each decorative sheet of 1 to 3 and curing at room temperature for 3 days. The surface condition of each decorative board was visually observed and evaluated according to the following evaluation criteria. In addition, in the following evaluation criteria, if it is evaluation of B or more, it is a surface state without a problem in an actual use condition.
A +: The uneven shape of the adherend is not exposed.
A: The uneven shape of the adherend is slightly exposed.
B: The uneven shape of the adherend is slightly exposed.
C: The concavo-convex shape of the adherend is exposed more than in the case of the B evaluation.

« Evaluation method 7: Evaluation of decorativeness of decorative sheet »
First, each decorative board was produced by the method similar to the method as described in the above-mentioned evaluation method 6. Subsequently, 20 men and women observed the appearance of each said decorative board, and the following evaluation criteria evaluated whether the texture of wood could be expressed. In addition, in the following evaluation criteria, if it is evaluation of B or more, it is a surface state without a problem in an actual use condition.
A +: 90% or more of the adult male and female who judged that the texture of the tree could be expressed.
A: 70% or more of adult men and women who judged that the texture of wood could be expressed.
B: 50% or more of adult men and women who judged that the texture of wood could be expressed.
C: Less than 50% of adult men and women judged that the texture of wood can be expressed.

  The results are shown in Tables 1 to 3 below.

1. Cosmetic sheet 2. Base sheet 3. Pattern layer 4. Transparency resin layer5. Surface protective layer6. Backer layer 7. Gloss adjustment layer

Claims (7)

Turn having at least a transparent resin layer and a surface protective layer on a substrate sheet, and, a decorative sheet having at least a backer layer on the back surface of the base sheet,
(1) The ten-point average roughness Rz _jis of the surface of the decorative sheet is 40 μm 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 all contain a non-halogen thermoplastic resin,
(4) The thickness of the backer layer is 120 to 250 μm,
(5) The Martens hardness of the backer layer is 50 to 80 N / mm ² ,
(6) The backer layer is formed by arranging the rear surface of the substrate sheet, a backer layer forming resin composition,
A cosmetic sheet characterized by The have a luster control layer on the transparent resin layer, and the luster control layer is Ru Tei adjacent to the surface protective layer, the decorative sheet according to claim 1. The roll of the decorative sheet according to claim 1 or 2. The decorative sheet in which the decorative sheet of Claim 1 or 2 or the decorative sheet derived from the roll-shaped thing of Claim 3 was laminated | stacked on the adherend. A method for producing a decorative sheet, wherein at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet, the following steps: 1-3:
(i) A laminated sheet having, in order, at least a transparent resin layer and a surface protective layer on a substrate sheet,
The surface protective layer contains an ionizing radiation curable resin,
Step 1 of obtaining a laminated sheet in which the base sheet and the transparent resin layer both contain a non-halogen thermoplastic resin,
(ii) Step 2 of _setting the ten-point average roughness Rz _jis of the surface of the laminated sheet to 40 μm or more by embossing the surface protective layer of the laminated sheet;
(iii) By extruding the backer layer-forming resin composition in a molten state with respect to the back surface of the base sheet,
The backer layer contains a non-halogen thermoplastic resin,
The thickness of the backer layer is 120 to 250 μm,
The Martens hardness of the backer layer is 50 to 80 N / mm ² .
Step 3 of laminating the backer layer
A method of producing a decorative sheet, comprising: A method for producing a decorative sheet, wherein at least a transparent resin layer and a surface protective layer are sequentially laminated on a substrate sheet, and at least a backer layer is laminated on the back surface of the substrate sheet, the following steps: 1 to 4:
(i) A laminate having at least a transparent resin layer on a substrate sheet,
Step 1 of obtaining a laminate in which the base sheet and the transparent resin layer both contain a non-halogen thermoplastic resin
(ii) a step 2 of embossing the transparent resin layer of the laminate;
(iii) By applying a resin composition for forming a surface protective layer containing an ionizing radiation curable resin on the transparent resin layer,
A laminated sheet having at least a transparent resin layer and a surface protective layer on a substrate sheet,
Step 3 of obtaining a laminated sheet having a ten-point average roughness Rz _jis of the surface of the laminated sheet of 40 μm or more;
(iv) By extruding a backer layer-forming resin composition in a molten state with respect to the back surface of the substrate sheet,
The backer layer contains a non-halogen thermoplastic resin,
The thickness of the backer layer is 120 to 250 μm,
The Martens hardness of the backer layer is 50 to 80 N / mm ² .
Step 4 of laminating the backer layer
A method of producing a decorative sheet, comprising:   The manufacturing method of the decorative board which laminates the said decorative sheet on an adherend so that the surface protection layer of the decorative sheet obtained by the manufacturing method of the decorative sheet of Claim 5 or 6 turns into an outermost layer.