WO2006035945A1 - 化粧シート - Google Patents
化粧シート Download PDFInfo
- Publication number
- WO2006035945A1 WO2006035945A1 PCT/JP2005/018186 JP2005018186W WO2006035945A1 WO 2006035945 A1 WO2006035945 A1 WO 2006035945A1 JP 2005018186 W JP2005018186 W JP 2005018186W WO 2006035945 A1 WO2006035945 A1 WO 2006035945A1
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- WO
- WIPO (PCT)
- Prior art keywords
- decorative sheet
- layer
- surface protective
- protective layer
- oligomer
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2479/00—Furniture
Definitions
- the present invention relates to a decorative sheet provided with an effective pattern as a surface decoration material for building materials such as furniture and joinery, and to a decorative board on which the decorative sheet is laminated.
- a decorative sheet is used by adhering to the surface of an adherend for the purpose of protecting the surface of the adherend such as a wooden board or decorating.
- the decorative panel obtained by sticking a decorative sheet to an adherend is used for various building materials and furniture.
- the decorative sheet is provided with a surface protective layer in order to protect the outermost surface.
- the surface protective layer must be excellent in wear resistance, scratch resistance and the like.
- the surface protective layer must have anti-staining (antifouling) properties against dirt from the outside!
- a decorative sheet excellent in abrasion resistance, stain resistance, etc. for example, a layer (2) containing a colorant, a synthetic resin layer (3), There is a decorative sheet obtained by laminating a synthetic resin layer (4) different from the synthetic resin layer (3) in this order (Patent Document 1).
- the antifouling cosmetic material has an antifouling layer provided on a base material, and the antifouling layer is a silicone-modified acrylic urethane in which an organopolysiloxy group is introduced into a side chain of an talylurethane resin.
- a stain-resistant cosmetic material characterized by being made of rosin (Patent Document 2).
- Patent Document 1 Japanese Patent Laid-Open No. 11-58614
- Patent Document 2 Japanese Patent Application Laid-Open No. 2004-17617
- the decorative sheet of Patent Document 1 uses a silicone resin having a low surface tension, fluorine resin, etc. as the outermost synthetic resin layer. Therefore, there is a problem in terms of durability.
- the decorative sheet is generally stored in a roll or laminated state. At this time, if a large amount of silicone resin is bleed on the surface of the decorative sheet, the decorative sheet is attached to the back surface of one decorative sheet. It becomes easy to wear.
- the decorative sheet of Patent Document 1 may cause a relatively large amount of silicone resin to bleed. If the back surface of the decorative sheet is stained with silicone resin, the predetermined adhesiveness may not be obtained when the decorative sheet is attached to a plywood or the like.
- the decorative sheet of Patent Document 2 uses a silicone-modified coagulant as an antifouling layer, and bleeds the silicone-modified coagulant on the surface of the decorative sheet (especially against stains caused by writing instruments, food stains, etc.) Resistance). Therefore, as in Patent Document 1, there is a problem due to bleeding of the silicone-modified resin.
- the decorative sheet of Patent Document 2 maintains the stain resistance for a long period of time because the silicone-modified resin forming the antifouling layer on the surface is wiped off at the same time by wiping the surface. It is difficult to do.
- a main object of the present invention is to provide a decorative sheet having excellent repellency (contamination resistance) and durability.
- the present invention relates to the following decorative sheet.
- the sheet has at least a base sheet, a pattern layer, a transparent resin layer, and a surface protective layer in this order,
- the surface protective layer is formed of a composition comprising a) an ionizing radiation polymerizable oligomer and b) a reactive silicone phthalate.
- a decorative sheet characterized by that.
- the decorative sheet further has a primer layer between the transparent resin layer and the surface protective layer,
- the primer layer contains an antistatic agent
- the surface protective layer is formed by a composition comprising a) an ionizing radiation polymerizable oligomer, b) a reactive silicone acrylate, and c) an apparent specific gravity of 0.3 to: LgZcm 3.
- Item 2 The decorative sheet according to Item 1 above.
- the ionizing radiation-polymerizable oligomer comprises (A) a urethane (meth) acrylate oligomer having at least two radical polymerizable unsaturated groups in one molecule, and (B) 3 to 1 in one molecule.
- a decorative board in which the sheet is laminated on an adherend so that the surface protective layer of the decorative sheet according to any one of Items 1 to 9 is an outermost surface layer.
- the surface protective layer is formed of a composition containing an ionizing radiation-polymerizable oligomer and a reactive silicone acrylate, so that excellent repelling can be achieved while avoiding the problem of bleeding. Demonstrate performance (contamination resistance) and durability.
- the decorative sheet of the present invention has a long-lasting effect because the surface protective layer is accompanied by contaminants (excellent so-called repelling properties), and has excellent anti-staining properties over a long period of time. And demonstrates durability.
- the decorative sheet of the present invention can exhibit more excellent design properties (in particular, various wrinkle levels) when a matting agent is used.
- the decorative sheet of the present invention is a decorative sheet for use by being laminated on an adherend
- the sheet has at least a base sheet, a pattern layer, a transparent resin layer, and a surface protective layer in this order,
- the surface protective layer is formed of a composition comprising a) an ionizing radiation polymerizable oligomer and b) a reactive silicone phthalate.
- the base sheet for example, paper, non-woven fabric, thermoplastic resin sheet, or a composite material thereof is used.
- Examples of the paper include thin paper, craft paper, high-quality paper, linter paper, nouter paper, sulfuric acid paper, and Japanese paper.
- non-woven fabric examples include non-woven fabric made of fiber such as polyester resin, acrylic resin, nylon, vinylon, and glass.
- the basis weight of the paper or nonwoven fabric is usually 20 ⁇ lOOgZm 2 about.
- paper or non-woven fabric is added with a resin such as acrylic resin, styrene butadiene rubber, melamine resin, urethane resin, etc. (It may be impregnated with grease after paper making, or embedded during paper making). Note that a decorative sheet using paper (or non-woven fabric) as a base sheet becomes decorative paper.
- thermoplastic resin sheet examples include acrylic resin, polyester resin, polyolefin resin, polyvinyl resin, polystyrene, ABS resin, polycarbonate resin, polyamide resin, and the like. Specifically, the following (1) to (4) may be mentioned.
- polyethylene high density, medium density, low density
- polypropylene isotactic type, syndiotactic type
- polybutene ethylene propylene copolymer
- ethylene propylene-butene copolymer ethylene propylene-butene copolymer
- olefin-based thermoplastic elastomer First class polyolefin resin
- the olefin-based thermoplastic elastomer includes a hard segment made of crystalline polyolefin resin, ethylene propylene rubber, ethylene propylene rubber, atactic polypropylene, styrene butadiene rubber, hydrogenated 3 ⁇ 41 styrene-butadiene rubber, etc.
- the elastomer component is crosslinked by a known crosslinking agent such as sulfur or hydrogen peroxide.
- Polyester resin such as polyethylene terephthalate, polybutylene terephthalate, ethylene-terephthalate one-to-isophthalate copolymer, polyethylene naphthalate, polyester-based thermoplastic elastomer, amorphous polyester
- polyester-based thermoplastic elastomer a block polymer using a high crystalline and high melting point aromatic polyester for the hard segment, and an amorphous polyether having a glass transition temperature of 70 ° C or less for the soft segment.
- Etc polybutylene terephthalate is used as the highly crystalline aromatic polyester having a high melting point
- polytetramethylene glycol is used as the amorphous polyether, for example.
- a typical example of an amorphous polyester is ethylene glycol 1,4-cyclohexanedimethanol terephthalic acid copolymer.
- polycarbonate resin polyvinyl chloride resin, polyamide resin, polyphenylene sulfide, polyether ether ketone and the like can be mentioned.
- the base sheet can be used by laminating the above-mentioned paper, non-woven fabric, thermoplastic resin sheet or the like into a single layer or two or more layers.
- the thickness of the base sheet (total thickness in the case of a laminate) is not limited, but is generally about 25 to 500 ⁇ m. [0040] Pattern layer
- the pattern layer includes characters, symbols, drawings and the like in addition to the patterns of natural materials such as wood grain and joints.
- the pattern layer forming method, material, pattern type, etc. are not particularly limited.
- the pattern layer can be formed by gravure stamp J, silk screen stamp J, offset stamp J, gravure printing, ink jet printing, etc. using ink.
- Examples of the pattern include a wood grain pattern, a stone pattern, a grain pattern, a cloth pattern, a tile-like pattern, a brick-like pattern, a leather pattern, a letter, a symbol, and a geometric pattern. You can combine two or more of these patterns.
- the ink used for the pattern layer is: 1) a vehicle that can be used as a binder, 2) a colorant such as a pigment and a dye, 3) an extender pigment, a stabilizer, a plasticizer, a catalyst, and a curing agent that are appropriately added as optional components. And various other additives.
- the resin used as the binder may be appropriately selected from thermoplastic resins, thermosetting resins, ionizing radiation curable resins, and the like according to required physical properties, printability, and the like.
- senolose-based rosin such as nitrosenololose, cenololose acetate, cenololose acetate propionate
- Acrylic resin such as butyl acrylate- (meth) acrylic acid 2-hydroxyethyl copolymer; urethane resin, salt resin butyl acetate copolymer, polyester resin, alkyd resin, etc.
- Mixtures containing can be used.
- organic pigments such as titanium white, carbon black, iron black, petal, yellow lead, ultramarine blue, etc .
- organics such as alin black, quinacridone red, isoindolinone yellow, phthalocyanine blue, etc.
- bright pigments such as pigments; titanium dioxide-coated mica and aluminum, various dyes can be used.
- the decorative sheet of the present invention preferably has an adhesive layer between the pattern layer and the transparent resin layer.
- the adhesive can be appropriately selected from known adhesives according to the components constituting the pattern layer or the transparent resin layer.
- thermosetting resins such as polyester resins, polyurethane resins, and epoxy resins can be used.
- a urethane-based resin adhesive is preferable in that heat resistance and the like can be further improved.
- the urethane-based resin adhesive include a two-component curable urethane resin having a polyol as a main component and an isocyanate as a crosslinking agent (curing agent).
- the polyol has two or more hydroxyl groups in the molecule.
- polyethylene glycol, polypropylene glycol, acrylic polyol, polyester polyol, polyether polyol, polycarbonate polyol and the like are used.
- isocyanate a polyvalent isocyanate having two or more isocyanate groups in the molecule is used.
- aromatic isocyanates such as 2,4-tolylene diisocyanate, xylene diisocyanate, 4,4-diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated carbonate ⁇
- Aliphatic (or alicyclic) isocyanates such as lylene diisocyanate and hydrogenated diphenylmethane diisocyanate are used.
- adducts or multimers of the above isocyanate can also be used. For example, adducts of tolylene diisocyanate, trimers of tolylene diisocyanate and the like can be mentioned.
- the adhesion surface can be subjected to known easy adhesion treatment such as corona discharge treatment, plasma treatment, degreasing treatment, and surface roughening treatment.
- the bonding method can be selected according to the type of adhesive used.
- a polyolefin resin such as polyethylene or polypropylene
- heat is applied to the pattern layer by melt-extrusion (etastrument coating method), polyester resin, polyurethane resin, epoxy resin, etc. It requires a crosslinking agent such as isocyanate and amine, a polymerization initiator such as methyl ethyl ketone peroxide, hydride peroxide, azabisisobutyoxy-tolyl, and a polymerization accelerator such as cobalt naphthenate and dimethylarine.
- a method of applying an adhesive added by the above method and dry laminating can be employed.
- the pattern layer and the transparent resin layer are laminated by thermocompression bonding using an adhesive capable of thermocompression bonding.
- the thickness of the adhesive layer varies depending on the type of the transparent protective layer, the type of the adhesive used, and the like, but is usually about 0.1 to 30 / ⁇ ⁇ .
- the transparent resin layer is not limited as long as it is transparent. Therefore, it includes any of colorless and transparent, colored and transparent, translucent and the like.
- the transparent resin layer is preferably formed of thermoplastic resin. Specifically, soft, semi-rigid or rigid polyvinyl chloride, polyethylene terephthalate, polyethylene terephthalate, polyamide, polyethylene, polypropylene, ethylene vinyl acetate copolymer, ethylene acrylic acid copolymer, ethylene acrylic acid ester copolymer, Examples include ionomers, acrylic acid esters, and methacrylic acid esters.
- a polyolefin resin such as polypropylene is particularly preferable as the transparent resin layer.
- the transparent resin layer may be colored as necessary. It can be colored by adding a coloring material (pigment or dye) to thermoplastic rosin.
- a coloring material pigment or dye
- known pigments or dyes can be appropriately used. One or more of these can be selected. Further, the addition amount of the colorant may be set as appropriate in accordance with the desired shade or the like.
- a filler for the transparent resin layer, a filler, a matting agent, a foaming agent, a flame retardant, a lubricant, an antistatic agent, an antioxidant, an ultraviolet absorber, a light stabilizer, a radical, if necessary.
- Various additives such as scavengers and soft ingredients (such as rubber) may be included.
- the flame retardant is added to impart flame resistance.
- chlorinated paraffin tritaredyl phosphate, chlorinated oil, tetrachlorophthalic anhydride, tetrabromophthalic anhydride, tetrabromobisphenol A, dibromopropinorephosphate, tri (2,3 dibromopropyl) phosphate, antimony oxide, hydrous Alumina, barium borate and the like can be preferably used.
- the anti-oxidation agent is added to suppress or prevent oxidative degradation.
- alkylphenols, amines, quinones and the like are suitable.
- the ultraviolet absorber absorbs ultraviolet rays in a wavelength range of 280 to 450 nm that causes deterioration of the resin (especially polyolefin resin).
- the resin especially polyolefin resin.
- examples thereof include benzophenone-based, salicylate-based, benzotriazole-based, and acrylonitrile-based ultraviolet absorbers.
- the radical scavenger improves weather resistance by preventing discoloration, cracking, whitening, strength deterioration, and the like due to sunlight.
- Radical scavengers include bis (2,2,6,6-tetramethyl-1,4 pipettes). Rigid) Sebaketo, for example, a hindered amine radical scavenger and a piperidyl radical scavenger disclosed in JP-B-4-82625 are used.
- the transparent resin layer is adjacent by, for example, a method of laminating a preformed sheet or film on an adjacent layer, or melt-extruding a resin composition capable of forming a transparent resin layer. Either a method of coating on a layer or a method of laminating together with an adjacent layer can be employed. In the present invention, it is particularly preferable to form a transparent resin layer by melt extrusion. In particular, the transparent resin layer is preferably coated with a polyolefin resin by melt extrusion.
- a transparent resin layer is suitably formed by previously forming an adhesive layer on the pattern layer, and melt-extruding a polypropylene-based thermoplastic elastomer on the adhesive layer. It can.
- a method of melt extrusion for example, there is a known method using a T die or the like.
- the thickness of the transparent resin layer can be appropriately set depending on the use of the final product, the method of use, etc. 3 ⁇ 4Typical is 50 ⁇ 250 ⁇ m, Ushidera is 20 ⁇ 200 ⁇ m.
- the surface (front surface) and Z or the back surface of the transparent resin layer may be subjected to corona discharge treatment as necessary in order to enhance the adhesion to the adjacent layer.
- the “corona discharge treatment method” condition may be a known method.
- the material for forming the primer layer includes, for example, polyester resin, polyurethane resin, acrylic resin, polycarbonate resin, salt butyl acetate acetate copolymer, polyvinyl butyral resin, nitrocellulose It is also possible to use compounds such as alkyl titanate, ethyleneimine, etc.
- the primer layer is preferably a two-component urethane urethane resin! /.
- an isocyanate such as fatty acid isocyanate (aliphatic isocyanate) such as hexamethylene diisocyanate (HMDI) as an isocyanate and an acrylic polyol as a polyol, more excellent weather resistance, adhesion and the like can be obtained.
- the primer layer is prepared by dissolving or dispersing the above materials as they are or in a solvent. And can be formed according to a known printing method, coating method or the like.
- the primer layer formed between the transparent resin layer and the surface protective layer preferably contains an antistatic agent.
- an antistatic agent a primer layer containing a strong antistatic agent will be described.
- the antistatic agent is not limited, but categorized by ionic species includes cationic, cation-based, non-ionic, and amphoteric. In addition to classification by molecular weight, in addition to so-called low molecular weight antistatic agents, there are high molecular weight antistatic agents called antistatic resins which are polymers such as copolymers. The antistatic agent is appropriately selected according to the required physical properties and applications.
- antistatic agents cationic ones are preferable in that strong antistatic properties are easily obtained.
- examples of the cationic system include quaternary ammonium salts.
- the high molecular type is preferable to the low molecular type in that, for example, physical properties such as compatibility can be easily adjusted by appropriately selecting a copolymerization monomer.
- a cationic polymer type antistatic agent having a quaternary ammonium salt, which is preferably a cationic polymer type is preferable.
- the addition amount of the antistatic agent can be appropriately set according to the use, the required physical properties, the type of the antistatic agent, and the like.
- the polymer type is added in a larger amount than the low molecular type.
- the addition amount of the antistatic agent is, for example, 30 to 120% by weight with respect to the fat content.
- the viewpoint power to provide antistatic performance is also a conductive agent, carbon powder and the like have a problem that the appearance of the decorative sheet is darkened and the design is impaired.
- Antimony-doped tin oxide (ITO) ITO
- Powder, tin oxide-treated titanium oxide powder, etc. have problems of cloudiness and high cost. These inorganic compounds are generally not preferred as antistatic agents for decorative sheets.
- Addition of a specific extender pigment as an inorganic filler together with an antistatic agent to the primer layer can further improve the antistatic property.
- the amount of antistatic agent added can be reduced and the amount of grease can be reduced, realizing the desired performance at a lower cost. it can.
- the extender pigment (antistatic aid) for example, barium sulfate is preferable. When barium sulfate is included, not only antistatic properties but also weather resistance adhesion can be improved. On the other hand, the extender calcium carbonate is charged Although the prevention property is improved, it is difficult to use it for the decorative sheet because the weather resistance adhesion is lowered.
- the amount of barium sulfate added is not limited, but is usually about 50 to 500 wt% with respect to the fat content. If the amount added is too large, the primer layer surface may be roughened and the adhesion may be reduced.
- the thickness of the primer layer varies depending on the application and the like.
- the surface protective layer is provided as the outermost surface layer.
- the surface protective layer may be colored as long as it is transparent. It may be translucent as long as the pattern layer is visible.
- the surface protective layer covers the ease of scratching on the surface of the decorative sheet and improves the scratch resistance.
- the surface protective layer is formed of a composition containing a) an ionizing radiation polymerizable oligomer and b) a reactive silicone acrylate.
- ionizing radiation-polymerizable oligomer those used in known ionizing radiation curable resins can be applied. Specific examples include polyester acrylate, epoxy acrylate, polyurethane acrylate, polyether acrylate, polyol acrylate, and the like.
- the ionizing radiation polymerizable oligomer includes (A) a urethane (meth) acrylate oligomer having at least two radical polymerizable unsaturated groups in one molecule and (B) 3 in one molecule. And preferably containing an aliphatic urethane (meth) acrylate oligomer having ⁇ 15 radically polymerizable unsaturated groups.
- the urethane (meth) acrylate oligomer (A) is one having two radically polymerizable unsaturated groups in one molecule (so-called bifunctional urethane acrylate oligomer).
- This includes, for example, a) a diisocyanate, b) a polyhydric alcohol having two or more hydroxyl groups in one molecule (preferably a weight average molecular weight of 500 to 2000), c) a hydroxyl group at the terminal and a radically polymerizable non-polymerizable group.
- Examples include oligomers formed by binding of (meth) atalytoi compounds having a saturated group.
- the oligomer preferably has a weight average molecular weight of 1000 to 4000.
- the urethane (meth) acrylate is used in the cured resin layer. There is a possibility that the flexibility of the cart cannot be fully exhibited. In addition, workability at the time of bending and embossing such as V-cutting and wrapping carriage is reduced. Furthermore, when the molecular weight force exceeds 000, there is a possibility that characteristics such as contamination resistance may be deteriorated.
- the diisocyanate a) is an aliphatic, alicyclic or aromatic isocyanate having two or more isocyanate groups in one molecule, for example, 2, 4 tolylene diisocyanate, 4, 4 ' -Diphenol-methanemethane diisocyanate, 1,6 hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated diphenylmethane diisocyanate, and the like.
- Examples of the polyhydric alcohol b) include a polyester polyol having a hydroxyl group at both ends, a polyether polyol, a polycarbonate polyol, and an acrylic polyol.
- polyester polyol examples include (i) an addition reaction product of a diioly compound having an aromatic or spiro ring skeleton and a ratatoni compound, a derivative thereof, or an epoxy compound, There are condensation products of basic acids and alkylene glycols, and (c) ring-opening polyester compounds derived from cyclic ester compounds, which can be used alone or in admixture of two or more.
- adipic acid is used as the polybasic acid in the above (mouth), and is obtained as a condensation product with alkylene glycol.
- Polyester diol having hydroxyl groups at both ends especially weight average molecular weight 500 to 2000) Therefore, it is preferably used.
- polyether polyol examples include polytetramethylene ether glycol, polyethylene glycol, and polypropylene glycol.
- the (meth) acrylate (c) is acrylic acid or methacrylic acid, and is an ester compound of these derivatives, and has a hydroxyl group at the terminal. Specifically, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 4-hydroxycyclohexyl (meth) acrylate, 5- (Meth) acrylic acid ester compounds having one polymerizable unsaturated group such as hydroxycyclooctyl (meth) acrylate and 2-hydroxy 3 phenoxypropyl acrylate, or other non-polymerizable groups in one molecule Examples thereof include (meth) acrylic acid ester compounds having two or more saturated groups.
- the urethane (meth) acrylate oligomer (A) is preferably a polyhydric alcohol.
- the polyester component is a polyester polyol having a weight average molecular weight of 500 to 2000 formed from alkylene glycol and adipic acid, the diisocyanate component is isophorone diisocyanate, and the acrylate component is hydroxyethyl (meth) acrylate.
- An oligomer having a weight average molecular weight of 1000 to 3000 obtained by reacting these is desired.
- the aliphatic urethane (meth) acrylate copolymer (B) has a radically polymerizable unsaturated group such as 3 to 15 (meth) atalyloyl groups in one molecule. This is obtained by reacting ( a ) an aliphatic diisocyanate, (b) a polyfunctional polyol, (c) a (meth) acrylate having a hydroxyl group at the terminal and having a radically polymerizable unsaturated group. ⁇ 15 functional) urethane acrylate.
- Examples of the aliphatic diisocyanate a) include 1, 6 hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated tolylene diisocyanate, and hydrogenated diphenylene diisocyanate. Can be mentioned.
- polyfunctional polyol b those having the polyhydric alcohol as a basic skeleton and having a plurality of functional groups can be used.
- urethane (meth) acrylate oligomer having at least two radical polymerizable unsaturated groups in one molecule 40 to 80 weight 0/0 and
- an aliphatic urethane (meth) Nozomu be used Atari rate oligomeric 60-20 mixture consisting by weight 0/0 in l molecule having 3-15 radical polymerizable unsaturated group Better ,.
- the compounding amount of the urethane (meth) acrylate oligomer (A) and the aliphatic urethane (meth) acrylate oligomer (B) is as follows. It represents the weight percentage of each component with respect to the total weight of the oligomer (A) and the oligomer (B) in the coating composition for forming the chemical resin layer.
- the reactive silicone acrylate is not particularly limited, but is preferably one that reacts with the electron beam radiation polymerizable oligomer.
- the above silicone acrylate is one having a dimethylsiloxane structure and a 1 structure.
- Types of functional groups In particular, when considering EB curing (electron beam irradiation), methacrylic groups, acrylic groups, and mercapto groups are preferred.
- the above-mentioned silicone acrylate may be present as it is in a mixture with the electron beam-curing polymerizable oligomer, but may be copolymerized with the above-mentioned oligomer to some extent.
- the present invention may also include such an embodiment.
- the content of the reactive silicone acrylate is a force that can be appropriately determined according to the type of ionizing radiation polymerizable oligomer, etc. Usually, it is 5% by weight or less in the above mixture, and 0.1 to 3.0% by weight is 0.1 to 3.0% by weight. The range of 0.5 to 2.0% by weight is more preferable.
- composition for forming the surface protective layer preferably further contains spherical particles.
- the surface protective layer can be sufficiently scratch-resistant.
- the apparent specific gravity of the spherical particles in the present specification is a value measured by a method based on JIS K 5101.
- the average particle size of the spherical particles is not limited! / ⁇ , but in general, the average particle size is preferably 5 ⁇ m or less.
- the spherical particles preferably have an oil absorption of 50 mlZlOOg or less. That is, it is easy to improve the scratch resistance by using higher-density spherical particles.
- the specific surface area (BET specific surface area) of the spherical particles is usually preferably about 0 to 50 m 2 Zg.
- the pore volume of the spherical particles is usually preferably 0.5 mlZg or less, more preferably about 0.1 to 0.4 mlZg. In other words, it is easy to increase the scratch resistance by using higher density particles. Become.
- the spherical particles are not limited as long as the material has the above-mentioned physical properties.
- inorganic particles such as silica, wollastonite, alumina, and the like
- grease particles such as acrylic are also used. Can do.
- silica particles can be preferably used, and it is preferable to set so that part or all of the spherical particles become silica particles.
- the content of the spherical particles is not particularly limited, and can be appropriately determined according to the type of ionizing radiation polymerizable oligomer, etc., but usually about 1 to 10% by weight in the above mixture is preferable, especially 3 to 5% by weight. % Is preferred.
- the decorative sheet of the present invention may contain an optional additive in the surface protective layer.
- an optional additive in the surface protective layer.
- a known matting agent may be included in order to enhance the matte feeling on the outermost surface of the cosmetic sheet.
- Examples of the matting agent include inorganic particles such as silica and silicone resin (powder, beads); crosslinked alkyl, crosslinked styrene, inzoguanamine resin, urea formaldehyde resin, phenol resin, polyethylene, nylon, and the like. Organic material powder, beads and the like. Among these, silica can be particularly preferably used. It is also preferable to use untreated silica. The reason is that the organically treated silica treated with wax may bleed the sheet surface force when used in combination with a liquid repellent material.
- the matting agent includes particles having an oil absorption of lOOmlZlOOg or more (especially 200 to 400 mlZl00g), particles having a pore volume of 0.6 ml / g or more (especially 1 to 1.7 ml / g), and an apparent specific gravity of 0.08. particles of ⁇ 0. 4gZcm 3 is preferable. By using such relatively low density particles, a desired matte feeling can be imparted to the decorative sheet surface.
- the particle size of the matting agent can also be determined as appropriate according to the intended use. In general, a particle size of about 0.1 to 30 ⁇ m is preferable, and a particle size of 3 to 6 ⁇ m is particularly preferable.
- the content of the matting agent is not limited, but is preferably 3 to 20 parts by weight, particularly 5 to 15 parts by weight with respect to 100 parts by weight of the mixture.
- the composition can be prepared by uniformly mixing these components.
- the method of forming the surface protective layer by this composition may be in accordance with a known method. For example, if a coating film is formed from the above composition and the coating film is crosslinked and cured by irradiation with an electron beam under known use conditions. good.
- an electron beam source of ionizing radiation various electron beams such as Cockcroft-Walton type, Bandegraft type, resonant transformer type, insulated core transformer type, linear type, dynamitron type, and high frequency type are used. 100-1000keV, and preferably ⁇ 200-300keV energy irradiating electrons can be used.
- the ultraviolet light source for example, a light source such as an ultrahigh pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc lamp, a black light, a metal nitride lamp may be used.
- the surface protective layer (that is, the outermost surface of the decorative sheet) is preferably provided with an uneven pattern by embossing or the like. More preferably, the embossed concave portion is subjected to a wiping process in which ink is filled, and the surface is coated with a two-component curable urethane-based resin (primer layer) and an ionizing radiation-polymerizable oligomer (overcoat treatment). To do.
- Embossing is performed to give the decorative sheet a desired texture such as the surface of a wood board.
- a desired texture such as the surface of a wood board.
- the decorative sheet olefin resin
- it is further heated to 160 to 180 ° C with an infrared radiation heater and applied with an embossed plate provided with a concavo-convex pattern of a desired shape. It is formed by pressing and cooling.
- embossing a known single-wafer or rotary embossing machine may be used.
- Examples of the concavo-convex pattern include a wood grain conduit groove, a float pattern (a concavo-convex pattern of a raised annual ring), a hairline, a grain, a satin, and the like, and a desired pattern can be appropriately selected from these.
- the wiping force is a process in which ink is filled in a recess provided with an embossing force while the surface is being forceful by a doctor blade.
- an ink having a two-component curable urethane urethane copolymer resin as a binder can be used as the wiping ink.
- the product value can be increased by expressing the design closer to the actual grain, especially by performing it on the unevenness of the grain conduit groove.
- the adherend to which the decorative sheet is applied can be the same as that of a known decorative sheet that is not limited.
- wood materials, metals, ceramics, plastics, glass and the like can be mentioned.
- the decorative sheet of the present invention can be suitably applied to a wood material.
- wooden materials include veneer made of various materials such as cedar, firewood, firewood, pine, lawan, teak, and melapie, wood Single wood, wood plywood, particle board, medium density fiberboard (MDF), etc.
- the decorative sheet is laminated on various adherends and becomes a decorative board.
- the laminating method is not limited.
- the laminating sheet can be laminated by sticking the decorative sheet to the adherend with an adhesive.
- the adhesive can be selected from known adhesives depending on the type of the adherend.
- polyacetic acid butyl, polychlorinated butyl, chlorinated butyl butyl acetate copolymer, ethylene acrylic acid copolymer, ionomer, and the like include butadiene-acrylic-tolyl rubber, neoprene rubber, natural rubber, and the like.
- the decorative panel includes, for example, interior decoration materials for buildings such as walls, ceilings, and floors, surface decorative panels for furniture such as window frames, doors, and handrails, and decorative decorative panels for furniture or light electrical appliances, cabinets for office equipment, etc. It can be suitably applied to.
- a polypropylene resin film (thickness 60 ⁇ m, transmittance 10%) was prepared as a base sheet. After the corona discharge treatment was applied to the front and back surfaces, a woodgrain pattern layer was formed on the front surface by gravure printing. On the other hand, a primer layer was formed on the back surface by gravure printing.
- an adhesive layer (thickness 3 ⁇ m) was formed on the pattern layer by applying a coating solution comprising a two-component curable urethane resin. Furthermore, a transparent thermoplastic resin layer (thickness 80 ⁇ m) was formed by melt extrusion coating a polypropylene thermoplastic elastomer made of ethylene / propylene / butene copolymer with a T-die.
- a two-component curable urethane resin consisting of acrylic urethane block polymer (main agent) and hexamethylene diisocyanate (curing agent) was applied, and the primer layer (thickness) 2 m) was formed.
- 'Oligomer (A) Urethane (meth) acrylate oligomer having at least two radically polymerizable unsaturated groups in one molecule
- Oligomer (B) Aliphatic urethane (meth) acrylate oligomer having 3 to 15 radically polymerizable unsaturated groups in one molecule
- a cosmetic sheet was prepared in the same manner as in Example 1 except that the surface protective layer was formed according to the composition shown in Table 1.
- the decorative sheet was tested according to JIS-B-7350 as an accelerated weather resistance test. Using a sunshine carbon arc lamp type weather resistance tester, a black panel temperature of 63 ° C, an irradiation amount of 25.5 mWZcm 2 (365 nm), and a rainfall time of 18 minutes during 120 minutes of irradiation were conducted for a total of 200 hours. After the test, the above test (2) was performed on the surface. The state where the ink was completely wiped was evaluated as “ ⁇ ”, and the state where the ink was not wiped off and maintained the same state as before the wiping was evaluated as “X”. The results are shown in Table 1.
- the decorative sheet of the present invention is remarkably excellent in repelling performance (contamination resistance) and durability.
- a polypropylene resin film (thickness 60 ⁇ m, transmittance 10%) was prepared as a base sheet. After the corona discharge treatment was applied to the front and back surfaces, a woodgrain pattern layer was formed on the front surface by gravure printing. On the other hand, a primer layer was formed on the back surface by gravure printing.
- a coating solution composed of a two-component curable urethane resin was applied on the pattern layer to form an adhesive layer (thickness 3 ⁇ m). Furthermore, it consists of an ethylene / propylene / butene copolymer.
- a polypropylene resin layer (thickness 80 IX m) was formed by melt extrusion coating a polypropylene thermoplastic elastomer with a T-die.
- a primer layer was formed on the transparent resin layer.
- the primer layer is composed of acrylic mono-urethane block polymer (main agent) and hexamethylene diisocyanate (curing agent), a two-component curable urethane-based resin, and 25% by weight of antistatic agent (quaternary ammonia). ) And 30% by weight of an antistatic aid (barium sulfate) were applied to form a primer layer (thickness 2 m).
- a surface protective layer was formed using a composition containing the components shown in Table 2.
- the weight ratio of each oligomer when the total weight of both is 100% by weight is shown.
- the numerical values of the silicone and spherical particles indicate the content ratio in the coating composition.
- Oligomer (A) Urethane (meth) acrylate oligomer with at least two radically polymerizable unsaturated groups in one molecule
- Oligomer (B) Aliphatic urethane (meth) acrylate oligomer with 3 to 15 radical polymerizable 'unsaturated groups in one molecule
- the surface protective layer was obtained by crosslinking and curing the coating film by irradiation with an electron beam under the conditions of 175 keV and 5 Mrad (50 kGy). 5 ⁇ m) was formed.
- the surface force of the surface protective layer is immediately increased by embossing by heat pressure.
- the predetermined decorative sheet was obtained by shaping the concavo-convex pattern of the wood grain conduit groove pattern.
- a decorative sheet was prepared in the same manner as in Example 4 except that a surface protective layer was formed according to the composition shown in Table 2 and Comparative Examples 6 and 7 did not use an antistatic agent and an antistatic aid.
- the surface of the decorative sheet was reciprocated 20 times with steel wool (load: 300 g / cm 2 ), and the presence or absence of damage was visually confirmed. Non-scratch items were evaluated as good ( ⁇ ), and those that were damaged were evaluated as poor (X).
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
Claims
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JP (1) | JP4848640B2 (ja) |
KR (1) | KR100889673B1 (ja) |
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- 2005-09-30 CN CN2009101295911A patent/CN101519018B/zh not_active Expired - Fee Related
- 2005-09-30 CN CNB2005800333136A patent/CN100569506C/zh active Active
- 2005-09-30 WO PCT/JP2005/018186 patent/WO2006035945A1/ja active Application Filing
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010228140A (ja) * | 2009-03-26 | 2010-10-14 | Dainippon Printing Co Ltd | 化粧シート及びこれを用いた化粧板 |
JP2010228139A (ja) * | 2009-03-26 | 2010-10-14 | Dainippon Printing Co Ltd | 化粧シート及びこれを用いた化粧板 |
JP2016145368A (ja) * | 2011-06-29 | 2016-08-12 | 大日本印刷株式会社 | コーティング剤 |
CN102493618A (zh) * | 2011-12-15 | 2012-06-13 | 李志强 | 软体石材及其生产工艺 |
CN102493618B (zh) * | 2011-12-15 | 2013-10-30 | 李志强 | 软体石材及其生产工艺 |
JP2013014146A (ja) * | 2012-10-25 | 2013-01-24 | Dainippon Printing Co Ltd | 化粧シート及びこれを用いた化粧板 |
JP2013056549A (ja) * | 2012-10-25 | 2013-03-28 | Dainippon Printing Co Ltd | 化粧シート及びこれを用いた化粧板 |
US11148403B2 (en) | 2015-09-04 | 2021-10-19 | Toppan Printing Co., Ltd. | Decorative sheet |
US10899117B2 (en) * | 2016-11-29 | 2021-01-26 | Toppan Printing Co., Ltd. | Decorative sheet and method of producing decorative sheet |
EP3369794B1 (en) * | 2017-03-02 | 2023-12-27 | Anglian Windows Limited | Laminated structure |
Also Published As
Publication number | Publication date |
---|---|
CN101519018B (zh) | 2013-04-10 |
JP4848640B2 (ja) | 2011-12-28 |
CN100569506C (zh) | 2009-12-16 |
KR20070065409A (ko) | 2007-06-22 |
CN101031418A (zh) | 2007-09-05 |
JP2006123495A (ja) | 2006-05-18 |
CN101519018A (zh) | 2009-09-02 |
KR100889673B1 (ko) | 2009-03-19 |
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