JP2004052374A - Flooring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flooring capable of enhancing the cubic effect and increasing architectural design efficiency. <P>SOLUTION: The flooring 1 forms a groove section 10 in one side of a woody basic material 2, and a facing sheet 3 is stuck on the exposed surface in the one side except the groove section or part of the groove section. A strip shaped gradation design 30 consecutively varied from a dark color to a light color in the direction separating from each other by holding the groove section from both shoulder end edges 11 of the groove section on both sides of the groove section is formed in the facing sheet. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor portion having a groove portion and a chamfer portion used for a floor surface of a house or the like, and more particularly, to a groove portion or a chamfer portion having an excellent design property capable of visually enhancing a three-dimensional effect. The present invention relates to a floor material having the same.
[0002]
[Prior art]
Conventionally, for example, a decorative sheet formed by printing a picture in which a small split veneer is assembled in a parquet shape on a surface of a rectangular flat wooden base material measuring 1 × 6 and is cut into predetermined dimensions. Then, a groove having a V-shaped or U-shaped cross-section where the bottom is located on the wooden base material along the joining boundary line between the veneers of the pattern is formed by cutting, and if necessary, the groove is formed. Floor materials coated with a transparent paint or a colored paint are frequently used because of their excellent design and water resistance.
[0003]
However, the above-mentioned flooring material has a decorative sheet surface as compared with a flooring material in which a small veneer is assembled in a parquet shape on the surface of a wooden base material and a groove or the like is provided by cutting along a joining boundary line between the veneers. Is flat, the floor material itself looks flat, and the groove is still unsatisfactory in terms of three-dimensional effect (feeling of depth). Therefore, improvement has been demanded.
[0004]
[Problems to be solved by the invention]
Therefore, the present invention has been made to meet the above-mentioned demands, and provides a flooring material having a three-dimensional feeling (depth feeling) and excellent in designability by forming a groove part having a three-dimensional feeling (depth feeling). That is.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention according to claim 1 has a structure in which a groove is formed on one surface of a wooden base material, and the groove or a part of the groove is removed. In a flooring material in which a decorative sheet is stuck on the exposed surface of the surface, the decorative sheet is changed from dark to light in a direction in which the decorative sheet is separated from each other from both shoulder edges of the groove across the groove on both sides of the groove. It is characterized in that a band-like gradation pattern that changes continuously is formed.
[0006]
According to a second aspect of the present invention, in the flooring of the first aspect, each width of the band-shaped gradation pattern is 1 to 5 times the width of the groove. .
[0007]
By adopting the configuration according to any one of claims 1 and 2, a groove having a three-dimensional effect (a sense of depth) can be visually provided, and a floor having a three-dimensional effect (a sense of depth) and excellent in design. Material. In addition, the width of the groove portion should be appropriately determined in consideration of the size and design of the floor material, and it is needless to say that the width of the band-shaped gradation pattern is also considered in relation to the groove portion in consideration of the design property. The width of the band-shaped gradation pattern is generally 1/2 to 10 times, more preferably 1 to 5 times the width of the groove.
[0008]
According to a third aspect of the present invention, there is provided the flooring according to any one of the first and second aspects, wherein the plurality of linear grooves are provided at equal intervals, and a direction perpendicular to the vertical grooves. And the lateral groove portions adjacent to each other via the vertical groove portion are provided so as not to coincide with each other. With such a configuration, it is possible to obtain a design in which small veneers are assembled in a parquet shape, and a high-quality floor material can be obtained.
[0009]
According to a fourth aspect of the present invention, in the flooring according to any one of the first to third aspects, a surface protective layer formed of an ionizing radiation-curable resin is provided on a surface of the decorative sheet. It is characterized by the following. With this configuration, it is possible to provide a flooring material having excellent physical properties such as abrasion resistance, impact resistance, stain resistance, and scratch resistance.
[0010]
According to a fifth aspect of the present invention, in the flooring according to any one of the first to third aspects, a surface protective layer formed of an ionizing radiation-curable resin is provided on the surface. Things. With this configuration, it is possible to provide a flooring material which is excellent in physical properties such as abrasion resistance, impact resistance, stain resistance, and scratch resistance, and which is particularly excellent in water resistance of the groove.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described below in detail with reference to the drawings and the like.
FIG. 1 is a perspective view schematically showing a first embodiment of a floor material according to the present invention, FIG. 2 is an enlarged perspective view of a main part of FIG. 1, and FIG. 3 shows a second embodiment of the floor material according to the present invention. FIG. 4 is a view corresponding to FIG. 2, FIG. 4 is an enlarged plan view of a main part showing another embodiment of a decorative sheet used for flooring according to the present invention, and FIG. 5 is still another embodiment of a decorative sheet used for flooring according to the present invention. 1 is a floor material, 2 is a wooden base material, 3, 3 ', 3 ", 3"' are decorative sheets, 10, 10 'are grooves, 10 "in the figure. Is a grooved portion, 11 is a shoulder edge of the grooved portion, 30 is a band-shaped gradation pattern, 31 is a grain pattern, 32 is a grooved portion solid pattern, and 33 is a grooved portion banded gradation pattern.
[0012]
FIG. 1 is a perspective view schematically showing an embodiment of a flooring material according to the present invention. The flooring material 1 has a decorative sheet 3 adhered to the surface of a wooden base material 2, and from the decorative sheet 3 side. The wood-based substrate 2 is provided with a V-shaped groove section 10 at the deepest portion thereof by cutting, and the decorative sheet 3 has band-shaped gradation patterns on both sides of the V-shaped groove section 10. A pattern such as a grain pattern 31 is formed by printing on a portion other than 30 and the band-shaped gradation pattern 30.
[0013]
FIG. 2 is an enlarged perspective view of a main part of FIG. 1, wherein the band-shaped gradation pattern 30 is separated from both shoulder edges 11 of the V-shaped groove 10 with the V-shaped groove 10 interposed therebetween. The band-shaped gradation pattern 30 is configured to continuously change from dark color to light color in the direction and is not shown in FIGS. The lightness and / or saturation is configured to substantially match the lightness and / or saturation of a picture such as a wood grain pattern 31 adjacent to the band-shaped gradation pattern 30.
[0014]
FIG. 3 is a view corresponding to FIG. 2 showing a second embodiment of the flooring material according to the present invention, in which a flooring material 1 ′ has a V-shaped cross-section formed on one surface of a wooden base material 2. It is configured so as to have a substantially V-shaped groove portion 10 'having a cross section in which both shoulder edges are covered with a decorative sheet 3'. Other than this, the same as the decorative sheet 3 of the first embodiment shown in FIG. On the decorative sheet 3 ′, a band-shaped gradation pattern 30 is formed on both sides of the substantially V-shaped groove section 10 ′ and a pattern such as a wood grain pattern 31 is formed by printing on portions other than the band-shaped gradation pattern 30, and the band-shaped floor is formed. The pattern 30 changes continuously from dark color to light color in a direction away from both shoulder edges 11 of the substantially V-shaped groove portion 10 ′ across the substantially V-shaped groove portion 10 ′. Although not shown, the band-shaped gradation pattern 30 has a lightness and / or brightness in an area farthest from the substantially V-shaped groove portion 10 'in cross section. Is configured to chroma substantially coincides with the lightness and / or saturation of the picture, such as a grain pattern 31 adjacent to the strip gradation pattern 30. The flooring 1 ′ of the second embodiment configured as described above should make it more difficult for the decorative sheet to peel off from the wooden base material 2 even when external pressure is applied to the groove, as compared with the flooring 1 of the first embodiment. Can be.
[0015]
The flooring materials 1 and 1 'having such a band-shaped gradation pattern 30 can be visually formed as the groove portions 10 and 10' having a three-dimensional feeling (depth feeling) to provide a design property having a three-dimensional feeling (depth feeling). Excellent floor material can be obtained. The grooves 10 and 10 'may be coated with a transparent paint or a colored paint as needed for the purpose of further improving the design and providing water resistance. Further, the width of the grooves 10, 10 'should be appropriately determined in consideration of the size and design of the floor material, and as a result, the width of the groove 10, 10' in consideration of the design of the width of the band-shaped gradation pattern. Although it should be appropriately determined from the relationship with the width of 10 ′, judging from various prototypes, the width of the band-shaped gradation pattern 30 is generally 〜１０ to 10 times the width of the grooves 10, 10 ′, More preferably, it is 1 to 5 times.
[0016]
FIG. 4 is an enlarged plan view of a main part showing another embodiment of a decorative sheet used for a flooring material according to the present invention. When the decorative sheet 3 ″ is a flooring material, grooves 10 and 10 ′ (see FIGS. 2 and 3). Is the same as or darker than the dark color adjacent to the scheduled groove portion 10 "of the band-shaped gradation pattern 30 formed on both sides adjacent to the estimated groove portion 10". The color groove scheduled portion solid pattern 32 is formed by printing.
[0017]
FIG. 5 is an enlarged plan view of a main part showing still another embodiment of the decorative sheet used for the flooring material according to the present invention. When the decorative sheet 3 ′ ″ is used as a flooring material, the grooves 10 and 10 ′ (FIG. 2, 3)), from the dark color adjacent to the planned groove portion 10 ″ of the band-shaped gradation pattern 30 formed on both sides adjacent to the planned groove portion 10 ″. In FIG. 5, the band-shaped gradation pattern 33 that changes continuously to a darker color toward the center in the left-right direction of the portion 10 ″ is formed by printing.
[0018]
The floor material using the decorative sheets 3 ″, 3 ′ ″ shown in FIGS. 4 and 5 described above allows the band-shaped gradation pattern 30 and the grooves 10 and 10 ′ (not shown) (see FIGS. 2 and 3). The decorative sheet 3 shown in FIG. 4 and FIG. 5 is preferable because even if the positional relationship in the width direction is slightly deviated from the above, the designability is not deteriorated and the productivity of the flooring material is improved. By applying "3 '" to the flooring 1' of the second embodiment shown in FIG. 3, a groove having a more three-dimensional appearance (depth) can be obtained, and the three-dimensional appearance (depth) can be obtained. Feeling) can be obtained.
[0019]
Further, in the description so far, a floor material in which the groove 10 is provided in one direction (vertical direction) as the floor material 1 of the first embodiment shown in FIG. 1 is illustrated, but this vertical material is not shown. A horizontal groove is provided in a direction (lateral direction) orthogonal to the vertical groove (vertical groove) 10 through the groove (vertical groove) 10 so that the adjacent horizontal grooves do not coincide with each other. 5 may be adopted. By adopting such a configuration, it is possible to obtain a design as if a small veneer is assembled in a parquet shape, and it is possible to obtain a high-quality floor material. Further, although not shown, when the floor material 1 is laid on the floor surface at both ends parallel to the groove (vertical groove) 10 shown in FIG. 1 or at both ends orthogonal to the groove (vertical groove) 10, the groove is formed. The chamfered portion may be formed so that the chamfered portion may have the configuration described with reference to FIGS. The number of the grooves (vertical grooves) 10 is not limited to the two shown in FIG. 1 and should be appropriately determined in consideration of the size and design of the floor material. This is the same as the groove (vertical groove) 10. Also, the shape of the groove (vertical groove) 10 is not limited to the V-shaped cross-section, and a well-known cross-section provided on a floor material such as a U-shape can be appropriately adopted, and the cross-section of the horizontal groove The same applies to the groove (vertical groove) 10.
[0020]
Next, the material constituting the flooring material of the present invention will be described.
First, as the wood-based base material 2 constituting the flooring material 1, a material obtained by laminating one or more kinds of medium-density fiberboard, high-density fiberboard, plywood, particle board, and the like can be used. A female nut is provided on one side of the wooden base material 2, and a male nut capable of fitting with the female nut is provided on the other side.
[0021]
Next, the decorative sheets 3, 3 ′, 3 ″, 3 ′ ″ constituting the flooring 1 will be described.
As the base sheet used for the decorative sheets 3, 3 ', 3 ", 3'", any material can be used as long as a pattern such as the above-mentioned flat band-shaped gradation pattern 30 or wood pattern 31 can be formed by printing. Although not limited, for example, paper such as thin paper, high-quality paper, kraft paper, Japanese paper, titanium paper, resin-impregnated paper, paper between sheets, wood fiber, glass fiber, asbestos, polyester fiber, vinylon Use of woven or non-woven fabric made of fibers such as fibers and rayon fibers, or one or more kinds of laminates such as sheets made of synthetic resin such as polyolefin, polyester, polyacryl, polyamide, polyurethane, polystyrene, ABS, etc. The above-mentioned base sheet may be colored by adding a pigment or the like as necessary, or a necessary surface such as a corona discharge treatment, a plasma treatment, an ozone treatment or the like may be used. The synthetic resin sheet may be in a non-stretched state or a sheet in a uniaxially or biaxially stretched state. Accordingly, various additives such as well-known antioxidants, light stabilizers, ultraviolet inhibitors, and inorganic fillers for imparting flame retardancy can be appropriately added.
[0022]
The pattern such as the flat band-shaped gradation pattern 30 and the grain pattern 31 is formed by ink using a known printing method such as gravure printing, offset printing, silk screen printing, and printing is performed as the ink. The vehicle may be appropriately selected and used depending on the material of the base sheet. Examples of the vehicle include chlorinated polyolefins such as chlorinated polyethylene and chlorinated polypropylene, polyesters, polyurethanes composed of isocyanate and polyol, and polyurethanes. Acrylic, polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, cellulose-based resin, polyamide-based resin, etc. may be used as a mixture of one or more kinds, and pigments, solvents, various auxiliaries, etc. In addition, inks can be used, but in consideration of recent environmental issues, Non-chlorinated vehicles mixed with one or more of esters, polyurethanes composed of isocyanates and polyols, polyacryls, polyvinyl acetates, cellulose resins, polyamide resins, etc., especially polyesters, polyurethanes composed of isocyanates and polyols, poly A mixture of one or two or more of acrylic and polyamide-based resins is preferable. The pattern is not limited to the grain pattern 31, but may be a stone pattern, a cloth pattern, a leather pattern, a geometric figure, a character, a symbol, a solid pattern, or the like.
[0023]
Further, the decorative sheets 3, 3 ', 3 ", 3'" can be provided with an uneven pattern by embossing or the like as necessary, and the design is further improved by providing the uneven pattern. Examples of the concavo-convex pattern include a conduit groove provided on a conduit portion such as a wood grain pattern, a stone plate surface irregularity, a cloth surface texture, a satin finish, a grain, a hairline, and a linear groove.
[0024]
The decorative sheets 3, 3 ', 3 ", 3'" are usually provided with a surface protective layer on the outermost surface of the decorative sheets 3, 3 ', 3 ", 3'". Examples of the resin forming the surface protective layer include epoxy resins, acrylic resins, urethane resins, amide resins, ester resins, and polyolefins such as polyethylene, polypropylene, polybutene, polybutadiene, and polyisoprene. Species or copolymers of two or more olefins such as ethylene, propylene, butene, butadiene, isoprene, or copolymers of α-olefins having 4 or more carbon atoms (linear low-density polyethylene), ethylene-vinyl acetate copolymers Examples thereof include a polymer, an ethylene-vinyl alcohol copolymer, and a mixed resin composed of one or more of these. As a method for forming the surface protective layer, for example, the above-mentioned resin is turned into a solution or heated and melted, and a well-known coating means such as a gravure printing method, a roll coating method, or an extrusion coating method is appropriately used. It can be formed by applying and using, or can be formed by forming the above resin into a film and laminating it by a known lamination method such as a dry lamination method.
[0025]
However, a more preferable resin for forming the surface protective layer is an ionizing radiation-curable resin. This is because the surface hardness is high and the productivity is excellent. An ionizing radiation-curable resin is a resin that undergoes a cross-linking polymerization reaction upon irradiation with ionizing radiation and changes into a three-dimensional polymer structure. Ionizing radiation refers to electromagnetic waves or charged particle beams having energy quanta that can polymerize and crosslink molecules, and include visible light, ultraviolet light (near ultraviolet light, vacuum ultraviolet light, etc.), X-rays, electron beams, ion beams, and the like. is there. Usually, ultraviolet rays or electron beams are used, and as the ultraviolet rays, light sources of an ultra-high pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc lamp, a black light fluorescent lamp, and a metal halide lamp can be used. As the wavelength of the ultraviolet light, a wavelength range of usually 1900 to 3800 ° is mainly used. Further, as the electron beam, various electron beam accelerators such as Cockloft-Walton type, Bandecraft type, Resonant transformer type, Insulated core transformer type, or linear type, Dynamitron type, and high frequency type are used, and 100 to 1000 keV, Preferably, one that irradiates electrons having an energy of 100 to 300 keV can be used.
[0026]
Examples of the ionizing radiation-curable resin include a monomer having a radical polymerizable unsaturated group such as a (meth) acryloyl group and a (meth) acryloyloxy group, or a cationic polymerizable functional group such as an epoxy group in a molecule. It is composed of a polymer or a polymer (hereinafter, these are collectively referred to as a compound). These monomers, prepolymers and polymers may be used alone or as a mixture of two or more. In this specification, (meth) acrylate is used in the meaning of acrylate or methacrylate.
[0027]
Examples of the prepolymer having a radical polymerizable unsaturated group include polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, melamine (meth) acrylate, triazine (meth) acrylate, and polyvinylpyrrolidone. This prepolymer usually has a molecular weight of about 10,000 or less. When the molecular weight exceeds 10,000, the cured resin layer has insufficient surface properties such as scratch resistance, abrasion resistance, chemical resistance, and heat resistance. Although the above acrylate and methacrylate can be used in common, acrylates are faster in terms of the rate of crosslinking and curing by ionizing radiation. Therefore, acrylates are more advantageous for the purpose of efficiently curing at a high speed in a short time.
[0028]
Examples of the prepolymer having a cationically polymerizable functional group include bisphenol epoxy resins, novolak epoxy resins, epoxy resins such as alicyclic epoxy resins, aliphatic vinyl ethers, aromatic vinyl ethers, urethane vinyl ethers, and esters. And vinyl ether resins such as vinyl ethers, and prepolymers such as cyclic ether compounds and spiro compounds.
[0029]
The ionizing radiation-curable resin cures sufficiently when irradiated with an electron beam, but when it is cured by irradiating ultraviolet rays, a photopolymerization initiator can be added as a sensitizer. As a photopolymerization initiator in the case of a resin system having a radical polymerizable unsaturated group, acetophenones, benzophenones, thioxanthones, benzoin, benzoin methyl ether, Michler benzoyl benzoate, Michler ketone, diphenyl sulfide, dibenzyl disulfide, Diethyl oxide, triphenylbiimidazole, isopropyl-N, N-dimethylaminobenzoate and the like can be used alone or in combination. In the case of a resin system having a cationically polymerizable functional group, an aromatic diazonium salt, an aromatic sulfonium salt, a metallocene compound, a benzoinsulfonic acid ester, a freeloxysulfoxonium diallyliodosyl salt, or the like is used alone or as a mixture. be able to. The addition amount of these photopolymerization initiators is generally about 0.1 to 10 parts by weight based on 100 parts by weight of the ionizing radiation-curable resin. In addition, as a method of forming the surface protective layer with an ionizing radiation-curable resin, for example, a method of forming a solution by ionizing the radiation-curable resin and applying the solution by a well-known coating method such as a gravure coating method or a roll coating method is used. Can be. The amount of coating is suitably about 5 to 30 g / m ² as a solid content, and more preferably 15 to 25 g / m ² .
[0030]
Further, in order to further impart abrasion resistance and abrasion resistance to the surface protective layer formed of the ionizing radiation curable resin, powdery aluminum oxide, silicon carbide, silicon dioxide, calcium titanate, titanic acid It can be achieved by adding an abrasive such as barium, magnesium pyroborate, zinc oxide, silicon nitride, zirconium oxide, chromium oxide, iron oxide, boron nitride, diamond, gold sand and glass fiber. An appropriate ratio of the abrasive to 100 parts by weight of the ionizing radiation-curable resin is 1 to 80 parts by weight.
[0031]
So far, the flooring material 1 of the present invention has been described by providing a surface protective layer on the surface of the decorative sheet 3, 3 ', 3 ", 3'". The present invention is not limited to this. For example, cosmetics 3, 3 ', 3 ", 3'" which are not provided with a surface protective layer are adhered to the wooden base material 2, grooves are formed by cutting, and then the surface is roll-coated. It may be formed by coating by a known coating method such as a method. By forming the surface protective layer by such a method, the groove is also covered with the surface protective layer, and the physical properties such as the water resistance of the groove can be further improved.
[0032]
The adhesive for attaching the decorative sheets 3, 3 ', 3 ", 3'" to the wooden base 2 is the same as the adhesive for the decorative sheets 3, 3 ', 3 ", 3'". It is necessary to appropriately select the material according to the surface to be in contact with, but generally, a well-known material such as a vinyl acetate resin, a urea resin, or a urethane resin may be selected from an adhesive.
[0033]
【The invention's effect】
As described above, according to the present invention, it is possible to form a groove having a visually three-dimensional effect (a sense of depth), thereby providing a flooring material having a three-dimensional effect (a sense of depth) and excellent design. .
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing one embodiment of a flooring material according to the present invention.
FIG. 2 is an enlarged perspective view of a main part of FIG.
FIG. 3 is a view corresponding to FIG. 2 showing a second embodiment of the flooring according to the present invention.
FIG. 4 is an enlarged plan view of a main part showing another embodiment of a decorative sheet used for flooring according to the present invention.
FIG. 5 is an enlarged plan view of a main part showing still another embodiment of the decorative sheet used for flooring according to the present invention.
[Explanation of symbols]
1, 1 'flooring material 2 wood base material 3, 3', 3 ", 3 '" decorative sheet 10, 10' groove portion 10 "planned groove portion 11 shoulder edge of groove portion 30 band-shaped gradation pattern 31 wood pattern 32 Pre-groove solid pattern 33 Pre-groove band-like gradation pattern

Claims (5)

In a flooring material in which a groove is formed on one surface of a wooden base material and a decorative sheet is attached to an exposed surface of the one surface except for the groove or a part of the groove, the decorative sheet has the groove. A floor-shaped pattern that continuously changes from dark color to light color in a direction away from both shoulder edges of the groove with the groove interposed therebetween on both sides of the floor. The floor material according to claim 1, wherein each width of the band-shaped gradation pattern is 1 to 5 times the width of the groove. The groove portion includes a plurality of linear vertical groove portions provided at equal intervals, and a horizontal groove portion provided in a direction perpendicular to the vertical groove portion, provided so that the horizontal groove portions adjacent to each other via the vertical groove portion do not match. The flooring material according to claim 1, wherein the flooring material is provided. The flooring material according to any one of claims 1 to 3, wherein a surface protective layer formed of an ionizing radiation-curable resin is provided on a surface of the decorative sheet. The flooring material according to any one of claims 1 to 3, further comprising a surface protection layer formed of an ionizing radiation-curable resin on the surface.

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