JP2002004538A - Decorative material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive decorative material easy to manufacture, constructed between decorative panels excellent in constructibility. SOLUTION: The decorative material constructed between the decorative panels is characteristically provided with a recessed part having an approximately U-shaped cross section and a wall surface supporting body. The recessed part is located in the longitudinal direction of the approximately central part of a belt-like body composed of a synthetic resin extrusion molded item. The wall surface supporting body is formed of the bottom wall of the above recessed part and platy protruding pieces protruding tabularly on both sides of the bottom wall in such a manner as to contact the bottom wall continuously, be symmetric with respect to the above recessed part, and have a smaller dimension than the width-direction dimension of the belt-like body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material applied between wall panels, ceiling panels, and the like, and more particularly to an inexpensive decorative material which is lightweight, has elasticity and moderate rigidity, and has excellent workability. It is about materials.

[0002]

2. Description of the Related Art Decorative panels are frequently used as decorations on interior walls and ceilings of buildings. Among them, interior panels are particularly decorated for the purpose of giving a sense of quality and scratch resistance to the lower part (waist portion) of the interior walls. A waist wall is provided in which a decorated waist wall panel is provided at the lower part of a wall surface for the purpose of improving the property and stain resistance. The waist wall is a board that covers the area from the floor surface to the height of the adult's waist, or a decorative panel material according to the board is attached to improve the decorativeness. Usually, the decorative panel and the decorative panel are used. A vertical cut-off material used for abutting portions of the decorative panel, a lower edge material (usually called a baseboard) used for a boundary between the decorative panel, a lower end of the vertical cut-off material, and a floor surface, A panel and an upper edge material (usually referred to as a "kasagi", a waist-looking edge, etc.) used for an upper end portion of the vertical cutting material, and a portion corresponding to a corner portion (corner portion) of a wall surface as necessary. And the corner material and the like.

[0003] The decorative panel, the upper edge material, the lower edge material, the vertical cutout material, the corner material, the corner material, and the like constituting the waist wall are usually made of solid wood or MDF. What has been used, or a veneer or an MDF or the like with a veneer or a decorative sheet adhered to the surface thereof is appropriately used, and these are appropriately combined to form a waist wall. The decorative material, such as the vertical cutout material, the corner material, and the corner material, has a groove that engages with an end of the decorative panel, and adjusts the engagement depth of the decorative panel with the groove. Then, meandering or bending of the cut surface of the decorative panel or slight deviation of the dimensional accuracy of the decorative panel is absorbed, and the end of the decorative panel is covered so as not to impair the appearance.

[0004] In the current detached houses and condominiums, the indoor opening frames such as door frames, closet frames, blind frames and the like are generally formed so as to protrude by about 10 mm from the wall surface. This 10 considering the appearance of the room
It is stretched to fit within the thickness of mm. Therefore, the thickness of each member constituting the waist wall is usually (thickness) 7 mm =
Upper edge material, lower edge material> vertical cutout material, out corner material, in corner material> decorative panel> (thin). For this purpose, the above-mentioned vertical cut-out material, which is formed by cutting the above-mentioned solid material or MDF thinner than 7 mm thick, or by sticking a veneer or a decorative sheet to the surface of plywood or MDF, etc. The process of forming the groove by forming a groove on a decorative material such as a corner material or a corner material is quite a difficult operation, and a builder at a construction site may use the decorative material (usually 4-6
mm thickness) to the specified dimensions with high precision and without any breakage, or the work of attaching and fixing to the wall surface using fixing means such as nails or tuckers without cracking etc. requires skill in construction In addition, the work was poor in workability.

[0005] Also, solid wood or MDF cut out,
Alternatively, the decorative material such as the vertical cut-off material, the corner material, the corner material, etc., which is made by attaching a veneer or a decorative sheet to the surface of plywood, MDF, or the like, covers the gap between the decorative panels. It was rather expensive for the purpose of not damaging the appearance of the waist wall. Therefore, there has been a demand for an inexpensive decorative material that is easy to manufacture, does not require much skill at the time of on-site construction, and is excellent in workability. In particular, among the decorative materials, the vertical cutout material is used much more frequently than the outgoing corner material and the ingoing corner material, and has been mentioned as the first of the demands.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned needs, is easy to manufacture,
It is an object of the present invention to provide an inexpensive decorative material excellent in workability, and in particular, a vertical cutout material used for a lumbar wall.

[0007]

Means for Solving the Problems In order to achieve the above object, the present invention is directed to a decorative material constructed between decorative panels, which is an extruded product made of synthetic resin. A substantially U-shaped cross section in the longitudinal direction of a substantially central portion of the belt-shaped body, and a bottom wall of the concave portion and both sides of the bottom wall connected to the bottom wall and symmetrically with respect to the recess; And a wall-shaped support formed of a plate-shaped protruding piece that is shorter than the width direction dimension and protrudes in the shape of a flat plate. With this configuration, it is possible to obtain a lightweight decorative material having elasticity and moderate rigidity, so that it is easy to handle and cut, and that the wall support provided on the decorative material securely attaches to the wall or the like. It can be easily attached and fixed, and can be constructed on site without requiring much skill. Further, the concave portion may be a portion where a fixing means such as a nail or a tucker is provided. Furthermore, since the decorative material is made of a synthetic resin extruded product, the cost can be reduced.

[0008] The invention described in claim 2 is the first invention.
In the decorative material described in the above, the plate-shaped protruding piece is provided with a protruding body protruding toward the band-shaped body symmetrically with respect to the recess at an edge extending in a longitudinal direction of the plate-shaped protruding piece. L
It is a character-shaped plate-shaped projection. With such a configuration, the convex body functions as a reinforcing rib, and the L-shaped plate-shaped protrusion can be less likely to be warped or twisted than the plate-shaped protrusion.

According to a third aspect of the present invention, in the decorative material according to any one of the first and second aspects, the width of the recess is 5 to 10 mm and the width of the wall support is 20 to 25 mm. The length and the width of the strip are 35 to 50 mm. With such a configuration, it is possible to provide a decorative material having excellent design properties when used as a waist wall. In addition, it is possible to stably attach and fix it to a wall surface or the like, and it is possible to make fixing means such as nails or tuckers less noticeable. Furthermore, even if the decorative panel is out of dimensional accuracy, or if the cut surface of the decorative panel has meandering or bending, it can be a decorative material that sufficiently covers the end of the decorative panel and does not impair the appearance.

[0010] The invention described in claim 4 is the first invention.
The decorative material described in any one of Items 1 to 3, wherein at least the exposed surface is decoratively finished. With this configuration, it is possible to provide a decorative material having excellent surface design.

[0011] The invention described in claim 5 is the same as in claim 4.
Wherein the decorative finish is obtained by attaching a decorative sheet.
With such a configuration, it is possible to obtain a decorative material excellent in productivity and design.

[0012] The invention according to claim 6 is the same as the invention according to claim 5.
Wherein the decorative sheet is made of a synthetic resin sheet having a surface protective layer made of an ionizing radiation-curable resin on the outermost surface on the exposed surface side. With such a configuration, it is possible to provide a decorative material having excellent abrasion, abrasion, and contamination.
In particular, it is suitable for a vertical cut-off member constituting a waist wall.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The above-mentioned present invention will be described below with reference to the drawings and the like, taking a waist wall as an example. FIG. 1 is a schematic front view showing an example of a waist wall using a decorative material according to the present invention, FIG. 2 is a perspective view showing a first embodiment of a longitudinal cut-off material according to the present invention, and FIG. FIG. 4 is a perspective view showing a second embodiment of the longitudinal cut material according to the present invention, and FIG. 5 is a schematic layer configuration of a decorative sheet used for the longitudinal cut material according to the present invention. FIG. 6 is a cross-sectional view showing one specific example of a decorative sheet used for a longitudinal cut material according to the present invention, and FIG. 7 is a specific example of a decorative sheet used for a longitudinal cut material according to the present invention. FIG.
In the figure, 10 and 10 'are vertical cut-out members, 11 is a strip, 12 is a concave portion,
13, 13 'is a wall support, 14 is a space, 20 is a decorative panel, 30
Is an upper edge material, 40 is a lower edge material, 50 is a door frame, 60 is an indoor wall surface, 70, 70 ', 70''are decorative sheets, 71, 71', 71 '' are synthetic resin sheets, 72, 72. ', 72''is a primer layer, 73 is a surface protective layer, 74 is an uneven pattern, 75 is a wiping ink, 76
Is a picture printing layer, 77 is a solid printing layer, 78 is an adhesive layer, 100 is a waist wall, 121 is a bottom wall, 122 is a plate-shaped protruding piece, 122 'is an L-shaped plate-shaped protruding piece, and 123 is a convex strip. Are respectively shown.

FIG. 1 is a schematic front view showing an embodiment of a waist wall using a decorative material according to the present invention. Normally, a waist wall 100 has a vertical cutout material 10, a decorative panel 20, an upper edge material 30, and a lower edge material. Edge material 40
And is extended from the floor (not shown) below the indoor wall surface 60 in connection with the door frame 50. A wall covering material (not shown) such as a cloth is attached to an upper portion of the indoor wall surface 60. In FIG. 1, as the decorative material of the present invention, the above-described vertically cut material 10 corresponds to the decorative material. Hereinafter, the above-mentioned vertically cut material 10 will be described as an example.

FIG. 2 is a perspective view showing a first embodiment of a longitudinal cutting material according to the present invention, in which a longitudinal cutting material 10 is substantially in the longitudinal direction of a central portion of a strip 11 made of a synthetic resin extruded product. A concave portion 12 having a substantially U-shaped cross section, and the bottom wall 121 of the concave portion 12 and the band-shaped body 11 connected to the bottom wall 121 on both sides of the bottom wall 121 symmetrically with respect to the concave portion 12. A wall support 13 formed of plate-shaped protruding pieces 122, 122 shorter than the width direction dimension and protruding in a plate shape, and spaces 14, 14 formed by the strip 11 and the wall support 13 are formed. The end of the decorative panel 20 is configured to be stored therein, and the wall support 13 is configured to contact the wall 60 to support the wall. When the longitudinal cut material 10 is attached and fixed to the wall surface 60 as shown in FIG. 1, a decorative sheet 70, which is one mode of decorative finish, is provided on the exposed surface of the longitudinal cut material 10.
Are provided by lapping.

FIG. 3 is a sectional view taken along line XX of FIG.
It is sectional drawing at the time of using the longitudinal cut material of 1st Embodiment of this invention shown in FIG. Decorative panels 20, 20 are indoor wall surfaces 60
Is stretched on the front side through a vertical cut-off member 10. As shown in the figure, the decorative panels 20, 20 have their ends stored in spaces 14, 14 provided in the longitudinal cut material 10, and the decorative panels 20, 20 are covered with the longitudinal cut material 10. At the same time, the wall support 13 provided on the longitudinal cutting member 10 abuts the front surface of the indoor wall surface 60 in a stable state and is reliably supported. Although not shown, the longitudinal cutting member 10 is fixed to the interior wall surface 60 by driving a fixing means such as a nail or a tucker into a concave portion 12 provided in the longitudinal cutting member 10, or is fixed to the wall supporting member. A fixing means such as a double-sided adhesive tape is provided on the surface of the thirteen which is in contact with the indoor wall surface 60, and is fixed to the indoor wall surface 60, or is fixed to the indoor wall surface 60 by both of the fixing means described above.

The longitudinal cutting material 10 is a decorative sheet which is an embodiment of a synthetic resin extruded product as a decorative finish.
70 is provided by lapping process, it is lightweight and has elasticity and moderate rigidity, so it is easy to handle.In addition, cutting at site construction can be done easily with a cutter knife without using a jigsaw or electric saw. It can be cut, and when fixing it to the indoor wall surface 60 with nails or tuckers, it is not necessary to pay attention to cracks that need to be taken care of in the case of solid wood, medium density fiberboard (MDF), plywood, etc. Because it can be fixed, the workability is significantly improved. Further, since the vertical cutout 10 is made of an extruded product made of a synthetic resin, it can be manufactured at extremely low cost.

Incidentally, the widthwise dimension of the exposed surface of the longitudinal cutting material 10, that is, the band-shaped body 11 of the longitudinal cutting material 10
If the width is less than 35 mm, it lacks the presence (design) as a decorative material, and if it is wider than 50 mm, the decorative material will be overemphasized and the overall balance when it becomes a waist wall will be lost, which is preferable. Is 35-50 mm. Further, if the width of the concave portion 12 provided in the vertical cut-off material 10 is smaller than 5 mm, it impedes the driving work of fixing means such as nails and tuckers, and if it is wider than 10 mm, fixing means such as nails and tuckers become visible. The thickness is preferably from 5 to 10 mm, since it becomes easy and the design becomes negative. Also, if the width of the wall support 13 provided on the longitudinal cut material 10 is smaller than 20 mm, even if the longitudinal cut material 10 is attached and fixed to the indoor wall surface 60 using a double-sided adhesive tape or the like, it can peel off with time. If it is wider than 25 mm, the space for accommodating the end of the decorative panel 20 becomes narrower in relation to the width of the strip 11, and the dimensional accuracy of the decorative panel 20 becomes irregular, or the cut surface of the decorative panel meanders or Preferably, the thickness is 20 to 25 mm, because the end portion of the decorative panel 20 cannot be covered by absorbing the bend and the workability is deteriorated.

FIG. 4 is a perspective view showing a second embodiment of a longitudinal cutting material according to the present invention.
In the longitudinal cutting material 10 of the first embodiment shown in FIG. 1, the plate-shaped protruding pieces 122, 122 are symmetrically formed with respect to the recess 12 at the edges extending in the longitudinal direction of the plate-shaped protruding pieces 122, 122. body
L-shaped plate-like projections 122 ', 122' having a substantially L-shaped cross section and having protruding ridges 123, 123 projecting to the 11 side, and a bottom wall 121 of the recess 12 and the L-shaped plate-like projection. Wall support with pieces 122 ', 122'
13 ', and the rest is the same as the longitudinal cutout 10 described above. Thus, the L-shaped plate-shaped protruding pieces 122 ′, 12 ′
By setting it to 2 ', the plate-shaped projecting piece shown in the first embodiment
In comparison with 122, 122, the ridge acts as a reinforcing rib,
Warpage and twist can be hardly generated.

There is no particular limitation on the material of the longitudinal cutting material made of the synthetic resin extruded product as described above as long as it is a thermoplastic resin that can be extruded by a hot melt extruder. PVC resin, ABS resin, propylene resin, etc. can be cited in terms of the rigidity of ABS resin, but considering the recent environmental issues, ABS resin,
Alternatively, a propylene resin is suitable.

Next, a description will be given of a decorative sheet 70 provided by lapping, which is one mode of decorative finishing. Until now, as the decorative material of the present invention, the decorative material provided on the waist wall, that is, the vertical cutout material has been described as an example, but this vertical cutout material is an example of one use of the present invention. The decorative material of the present invention is not limited to this, and may be, for example, a decorative material provided between decorative panels provided on a ceiling. As described above, since the decorative material of the present invention has different surface physical properties depending on the place where the decorative material is used, the physical properties required for the decorative sheet naturally differ depending on the place where the decorative material of the present invention is used. When the decorative material of the present invention is used for a ceiling, since an external force is not applied so much on a daily basis, the decorative sheet 70 used for this is printed with an appropriate pattern on an olefin-based film such as vinyl chloride, polyethylene, or polypropylene. A well-known decorative sheet formed and the like and subjected to embossing or wiping as necessary can be used as appropriate, but it is desirable to avoid the vinyl chloride film in view of recent environmental problems. In addition, when the decorative material of the present invention is used for applications such as vertical cut-off materials described so far, collision damage during the import or movement of furniture, collision damage such as a wheelchair in a barrier-free house in recent years, Alternatively, scratches and the like by dogs and cats that tend to be kept indoors are likely to occur,
The decorative sheet 70 used for this purpose must have excellent surface physical properties such as abrasion resistance, abrasion resistance, and stain resistance. One face of the synthetic resin sheet 71 shown in FIG. It is preferable that a surface protective layer 73 made of an ionizing radiation-curable resin is provided via a primer layer 72.

Examples of the synthetic resin sheet 71 include low-density polyethylene (including linear low-density polyethylene), medium-density polyethylene, high-density polyethylene, ethylene α-olefin copolymer, homopolypropylene, polymethylpentene, polybutene, and ethylene. Olefinic thermoplastic resin such as propylene copolymer, propylene-butene copolymer, ethylene-vinyl acetate copolymer, saponified ethylene-vinyl acetate copolymer, or a mixture thereof, polyethylene terephthalate, polybutylene terephthalate , Polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, thermoplastic ester resin such as polycarbonate, polyarylate, polymethyl methacrylate, polyethyl methacrylate, polyethyl acrylate, poly Recently, acrylic thermoplastic resins such as butyl acrylate, polyamide thermoplastic resins such as nylon-6, nylon-66, and non-halogen thermoplastic resins such as polyimide, polyurethane, polystyrene, and acrylonitrile-butadiene-styrene resins have been used. It is appropriate considering the environmental issues. Further, the synthetic resin sheet 71 may be a single-layer sheet of these thermoplastic resins, or may be a multilayer sheet in which these thermoplastic resins are laminated. However, since the synthetic resin sheet 71 used for the decorative sheet 70 of the present invention is usually subjected to processing such as printing or embossing for providing a printed pattern or a concavo-convex pattern, these suitability are required and inexpensive. In view of these, an olefin-based thermoplastic resin is preferable.

The synthetic resin sheet 71 made of the olefin-based thermoplastic resin is in a non-stretched state or
The sheet may be in any state of being stretched in a uniaxial or biaxial direction, or may be a colored sheet to which a pigment or the like is added. Is preferably about 60 to 300 μm. If necessary, one or both surfaces of the synthetic resin sheet 71 may be subjected to an easy adhesion treatment such as a corona discharge treatment, a plasma treatment, and an ozone treatment. In addition, the olefin-based thermoplastic resin constituting the synthetic resin sheet 71 may have a well-known antioxidant, light stabilizer, ultraviolet ray inhibitor,
Alternatively, various additives such as an inorganic filler for imparting flame retardancy or a foaming agent for imparting design properties can be added. By the way, as the pigment used for the colored sheet, a known inorganic pigment is suitable in consideration of heat resistance and weather resistance.

The surface protective layer 73 is provided for improving the surface physical properties such as scratch resistance, abrasion resistance, and stain resistance, and is used as a resin for forming the surface protective layer 73. Are, for example, epoxy resin, acrylic resin, urethane resin, polyamide resin, polyester resin, polyethylene, polypropylene,
Copolymers of one or more polyolefins such as polybutene, polybutadiene, polyisoprene or 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), an ethylene-vinyl acetate copolymer, a saponified ethylene-vinyl acetate copolymer, or a mixed resin of one or more of these. Further, as a method of forming the surface protective layer, for example, a solution of the resin, or a heated and melted resin, a known gravure printing method, a roll coating method, or a coating method such as an extrusion coating method as appropriate. It can be formed by applying, or by laminating the above resin into a film by a well-known dry lamination method or the like, but it is particularly preferable to form the film by using an ionizing radiation curable resin. .

The ionizing radiation-curable resin is a resin which 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. Ultraviolet light sources, high pressure mercury lamps, low pressure mercury lamps, carbon arc lamps, black light fluorescent lamps, and metal halide lamp lamps can be used as the ultraviolet light source. As the wavelength of the ultraviolet light, a wavelength range of 1900 to 3800 通常 is mainly used, and as the electron beam source, a Cockloft-Walton type, a bande-graft type, a resonance transformer type, an insulating core transformer type, or a linear type is used. 100 to 1000 KeV, preferably 100 to 300 K, using various electron beam accelerators of dynamitron type and high frequency type lamps.
A device that irradiates electrons having energy of eV can be used.

The ionizing radiation-curable resin forming the surface protective layer 73 includes a radical polymerizable unsaturated group such as a (meth) acryloyl group and a (meth) acryloyloxy group, or a cationic group such as an epoxy group in a molecule. It is composed of a monomer, a prepolymer or a polymer having a polymerizable functional group (hereinafter, these are collectively referred to as a compound). These monomers, prepolymers, and polymers may be used alone or
Alternatively, a mixture of plural kinds is used. In this specification, (meta)
Acrylate means acrylate or methacrylate.

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. No. This prepolymer usually has a molecular weight of about 10,000 or less. If 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 shared, acrylate is faster in terms of the rate of crosslinking and curing by ionizing radiation.
Acrylates are more advantageous for the purpose of curing efficiently in a short time.

Examples of the prepolymer having a cationically polymerizable functional group include epoxy resins such as bisphenol type epoxy resin, novolak type epoxy resin and alicyclic type epoxy resin, aliphatic vinyl ether, aromatic vinyl ether, urethane vinyl ether, Vinyl ether resins such as ester vinyl ethers, cyclic ether compounds,
Prepolymers such as spiro compounds are exemplified.

Examples of the monomer having a radical polymerizable unsaturated group include monofunctional monomers of (meth) acrylate compounds such as methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, Methoxyethyl (meth) acrylate, methoxybutyl (meth) acrylate, butoxyethyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, N, N-
Dimethylaminomethyl (meth) acrylate, N, N-
Dimethylaminoethyl (meth) acrylate, N, N-
Diethylaminoethyl (meth) acrylate, N, N-
Diethylaminopropyl (meth) acrylate, N, N
-Dibenzylaminoethyl (meth) acrylate, lauryl (meth) acrylate, isobonyl (meth) acrylate, ethyl carbitol (meth) acrylate, phenoxyethyl (meth) acrylate, phenoxypolyethylene glycol (meth) acrylate, tetrahydrofurfuryl (meth) ) Acrylate, methoxypropylene glycol (meth) acrylate, 2- (meth) acryloyloxyethyl-2-hydroxypropyl phthalate, 2- (meth) acryloyloxypropyl hydrogen terephthalate and the like.

As the polyfunctional monomer having a radically polymerizable unsaturated group, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate,
Propylene glycol di (meth) acrylate, dipropylene glycol (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6 hexanediol di (meth) acrylate, 1,9-nonanediol di (meth) acrylate, tetraethylene Glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, bisphenol-A-di (meth) acrylate, trimethylolpropane tri (meth) acrylate, trimethylolpropane ethylene oxide tri (meth) acrylate, pentaerythritol tri ( (Meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acryl Over DOO, glycerin polyethylene oxide tri (meth) acrylate, tris (meth)
Acryloyloxyethyl phosphate and the like.

The monomer having a cationically polymerizable functional group is
Prepolymer monomers having a cationically polymerizable functional group can be used.

The above-mentioned ionizing radiation-curable resin cures sufficiently when irradiated with an electron beam, but when it is cured by irradiating ultraviolet rays, a photopolymerization initiator is added as a sensitizer. 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, triphenyl biimidazole, isopropyl-N, N-dimethylamino benzoate and the like can be used alone or in combination. In the case of a resin 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. Incidentally, the amount of the photopolymerization initiator added is generally 0.1 to 100 parts by weight of the ionizing radiation-curable resin.
It is about 1 to 10 parts by weight. As a method for forming a protective layer with the ionizing radiation-curable resin, for example, a solution of the ionizing radiation-curable resin, a gravure coating method,
It can be formed by coating by a known coating method such as a roll coating method. In this case, the coating amount is suitably about 5 to 30 g / m ² as a solid content, and more preferably 15 to 25 g / m ² .

When the surface protective layer 73 made of an ionizing radiation-curable resin is to be further provided with abrasion resistance and abrasion resistance, powdery aluminum oxide, silicon carbide,
Silicon dioxide, calcium titanate, barium titanate,
It can be achieved by adding an abrasive such as 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.

The primer layer 72 is formed of a resin comprising a copolymer of an acrylic resin and a urethane resin, and isocyanate. That is, the copolymer of acrylic resin and urethane resin is
An acrylic polymer component having a hydroxyl group at a terminal (component A),
A polyester polyol component (Component B) having hydroxyl groups at both ends and a diisocyanate component (Component C) are blended and reacted to form a prepolymer, and a chain extender such as diamine (Component D) is further added to the prepolymer. It is obtained by chain extension. By this reaction, a polyester urethane is formed and an acrylic polymer component is introduced into the molecule to form an acrylic-polyester urethane copolymer having a hydroxyl group at a terminal. The primer layer 72 is obtained by reacting the terminal hydroxyl groups of the acrylic-polyester urethane copolymer with the isocyanate and curing the same.

As the component A, a linear acrylate polymer having a hydroxyl group at a terminal is used. Specifically, linear polymethyl methacrylate (PMMA) having a hydroxyl group at a terminal is preferable because it has excellent weather resistance (particularly properties against light degradation) and is easily copolymerized with urethane and made compatible. . The component A is an acrylic resin component in the copolymer, and has a molecular weight of 5,000 to 70.
Those having a weight average molecular weight of 00 are preferably used because they have particularly good weather resistance and adhesiveness. The component A
May be only those having a hydroxyl group at both ends,
Those having a conjugated double bond remaining at one end may be used in combination with those having a hydroxyl group at both ends. A layer in contact with the primer layer 72 by mixing the acrylic polymer having a conjugated double bond remaining, for example, a surface protective layer
When an ionizing radiation-curable resin is used as the resin of 73, the adhesion between the ionizing radiation-curable resin and the ionizing radiation-curable resin is particularly improved because the conjugated double bond of the acrylic polymer reacts with the ionizing radiation-curable resin. be able to.

The component B reacts with diisocyanate to form a polyester urethane, and forms a urethane resin component in the copolymer. As the component B, a polyester diol having a hydroxyl group at both terminals is used. The polyester diol is derived from an addition reaction product of a diol compound having an aromatic or spiro ring skeleton and a lactone compound or a derivative thereof, or an epoxy compound, a condensation product of a dibasic acid and a diol, and a cyclic ester compound. And the like. As the diol, ethylene glycol,
Examples thereof include short-chain diols such as propylene glycol, diethylene glycol, butanediol, hexanediol, and methylpentanediol, and alicyclic short-chain diols such as 1,4 cyclohexanedimethanol. Examples of the dibasic acid include adipic acid, phthalic acid, isophthalic acid, terephthalic acid, and the like. Preferred as the polyester polyol are adipic acid or a mixture of adipic acid and terephthalic acid, particularly adipic acid as the acid component, and 3% as the diol component.
-Adipate-based polyester using methylpentanediol and 1,4-cyclohexanedimethanol.

In the primer layer 72, the urethane resin component formed by the reaction of the components B and C gives the primer layer 72 flexibility and contributes to the adhesion to the synthetic resin sheet 71. An acrylic resin component made of an acrylic polymer contributes to the weather resistance and the blocking resistance in the primer layer 72. In the urethane resin, the molecular weight of the component B may be within a range where a urethane resin capable of sufficiently exhibiting flexibility in the primer layer 72 can be obtained, and adipic acid or a mixture of adipic acid and terephthalic acid and 3-methylpentanediol In the case of polyester diols comprising 1,4-cyclohexanedimethanol and 1,4-cyclohexanedimethanol, the molecular weight is preferably from 500 to 5,000 (weight average molecular weight).

As the component C, an aliphatic or alicyclic diisocyanate compound having two isocyanate groups in one molecule is used. As the diisocyanate, for example, tetramethylene diisocyanate, 2,2,4 (2,4,
4) -1,6 Hexamethylene diisocyanate, isophorone diisocyanate, 4,4'dicyclohexylmethane diisocyanate, 1,4'cyclohexyl diisocyanate, and the like. As the diisocyanate component, isophorone diisocyanate is preferred because of its excellent physical properties and cost. The total hydroxyl groups (including amino groups) of the acrylic polymer, polyester polyol, and chain extender described below when reacting the above components A to C.
And the equivalent ratio of the isocyanate groups is such that the isocyanate groups become excessive.

The above three components A, B and C were mixed at 60-120 ° C.
When reacted for about 10 hours, the isocyanate group of the diisocyanate reacts with the hydroxyl group at the end of the polyester polyol to form a polyetherester urethane resin component, and the compound in which the diisocyanate has been added to the hydroxyl group at the acrylic polymer end is also mixed, and Is formed in a state where the isocyanate groups and hydroxyl groups remain.
As a chain extender to this prepolymer, for example, a diamine such as isophorone diamine or hexamethylene diamine is added, and an isocyanate group is reacted with the chain extender. By extending the chain, the acrylic polymer component is introduced into the polyester urethane molecule. An acrylic-polyester urethane copolymer having an introduced hydroxyl group at the end can be obtained.

To this acrylic-polyester urethane copolymer, isocyanate was added, and a coating liquid was adjusted to a necessary viscosity in consideration of a coating method and a coating amount (after drying). The primer layer 72 can be formed by applying a known coating method such as a coating method or a roll coating method. The primer layer
The coating amount after drying of 72, from 1 to 20 g / m ² are suitable, preferably from 1 to 5 g / m ^2. In addition, the primer layer 72 may be a layer to which additives such as a filler such as silica fine powder, a light stabilizer, and a coloring agent are added as required in addition to the resin. In addition, any isocyanate may be used as long as it can react with hydroxyl groups of the acrylic-polyester urethane copolymer to be cross-linked and cured,
For example, divalent or higher aliphatic or aromatic isocyanates can be used, and aliphatic isocyanates are particularly desirable from the viewpoint of preventing thermal discoloration and weather resistance. Specifically, tolylene diisocyanate, xylylene diisocyanate, 4,4′-dicyclohexylmethane diisocyanate, hexamethylene diisocyanate, a monomer of lysine diisocyanate, or a multimer such as a dimer or trimer thereof, or And polyisocyanates such as derivatives (adducts) obtained by adding these isocyanates to polyols.

The adhesive (not shown) for bonding the decorative sheet 70 and the extruded product made of synthetic resin is, for example, an adhesive made of an acrylic, vinyl acetate, urethane, epoxy resin or the like. By using the agent, both can be easily bonded.

Next, specific examples of the decorative sheet 70 used for the decorative material of the present invention, particularly, the vertical cutout material constituting the waist wall will be described. FIG. 6 is a cross-sectional view showing one specific example of the decorative sheet used for the vertical cutout material of the present invention,
The decorative sheet 70 'shows one specific embodiment of the decorative sheet 70, and embossing is performed on one surface of the synthetic resin transparent sheet 71' to form an uneven pattern 74, and After the wiping process is performed and the recesses of the uneven pattern 74 are filled with the wiping ink 75, a primer layer 72 is provided on the entire exposed surface, and a surface protective layer 73 made of an ionizing radiation-curable resin is formed on the primer layer 72. And a primer layer on the other surface of the synthetic resin transparent sheet 71 '.
A pattern printing layer 76 and a solid printing layer 77 are formed via 72 '. An adhesive (not shown) is applied to the exposed surface (the surface exposed in FIG. 1) of the synthetic resin extruded product so that the decorative sheet 70 'is exposed by the surface protective layer 73 of the decorative sheet 70'. 2), it is possible to obtain, for example, the longitudinal cut material of the present invention as shown in FIGS.

FIG. 7 is a cross-sectional view showing another specific example of a decorative sheet used for a longitudinal cut material according to the present invention. The decorative sheet 70 ″ is another specific example of the decorative sheet 70. After subjecting at least one surface of the synthetic resin sheet 71 '' to an easy-adhesion treatment such as a corona discharge treatment, a plasma treatment, and an ozone treatment, the surface (not shown) is subjected to the treatment. Provide a primer layer 72 '', the primer layer 72 ''
An adhesive layer formed by sequentially printing a solid printing layer 77 and a pattern printing layer 76 on the pattern printing layer 76 and further forming a known dry lamination adhesive such as a two-component curable urethane resin on the pattern printing layer 76.
A synthetic resin transparent sheet 71 ′ is bonded by a well-known dry lamination method via a synthetic resin transparent sheet 7 ′.
1 'surface is embossed to provide an uneven pattern 74,
Thereafter, similarly to the decorative sheet 70 ′ shown in FIG. 6, after wiping is performed from above the concave and convex pattern 74 to fill the concave portion of the concave and convex pattern 74 with the wiping ink 75, the primer layer 72 is provided on the surface, A surface protective layer 73 made of an ionizing radiation-curable resin is formed on the primer layer 72. The decorative sheet 70 ″ is bonded to the exposed surface (the surface exposed in FIG. 1) of the synthetic resin extruded product so that the surface protective layer 73 of the decorative sheet 70 ″ is exposed by an adhesive (see FIG. 1). By wrapping through a notch (not shown), for example, a longitudinal cut material of the present invention as shown in FIGS. 2 and 4 can be obtained. The synthetic resin sheet 71 ″ is generally a colored sheet, but may be a non-colored sheet.

Next, the primer layer 72 'provided on the other surface of the synthetic resin transparent sheet 71' shown in FIG. 6 is made of a synthetic resin transparent sheet 7 made of an olefin-based thermoplastic resin.
It is provided to improve the adhesiveness between 1 'and the print layer such as the pattern print layer 76 or the solid print layer 77, and it is preferable to use the same resin as the primer layer 72 described above, and the formation method is also preferred. It is the same as the method for forming the primer layer 72. A primer layer 72 '' provided on the synthetic resin sheet 71 '' shown in FIG. 7 is provided to improve the adhesiveness between the synthetic resin sheet 71 '' and a printing layer such as the solid printing layer 77. When the synthetic resin sheet 71 '' is made of an olefin-based thermoplastic resin, it is preferable to use the same resin as the primer layer 72 described above,
The forming method is the same as the forming method of the primer layer 72.

The concavo-convex pattern 74 can be formed by hot pressing or hairline processing. Examples of the concavo-convex pattern 74 include a conduit groove, a stone plate surface irregularity, a cloth surface texture, a satin finish, a grain, a hairline, and a linear groove.

The pattern printing layer 76 and the solid printing layer 77 generally include gravure printing, offset printing,
It can be formed using ink by a known printing method such as silk screen printing. As the picture printing layer 76,
For example, wood, stone, cloth, leather,
These are geometric patterns, characters, symbols, line drawings, and various abstract patterns. The solid print layer 77 is formed by solid printing with a colored ink having concealing properties. 6 and 7,
Although the configuration in which both the picture print layer 76 and the solid print layer 77 are provided has been shown, any one of the configurations may be used.

As the ink used for the pattern printing layer 76 and the solid printing layer 77, chlorinated polyolefins such as chlorinated polyethylene and chlorinated polypropylene, polyesters, polyurethanes composed of isocyanate and polyol, vehicles such as polyacryl, One or more kinds of polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, cellulose resin, polyamide resin, etc. are mixed and used, and pigments, solvents, various auxiliaries and the like are added thereto. Ink can be used, but in consideration of environmental issues, one or more of polyester, polyurethane composed of isocyanate and polyol, polyacryl, polyvinyl acetate, cellulose resin, polyamide resin and the like are mixed. Non-chlorine vehicles are suitable and more preferred Is a mixture of one or more of polyester, polyurethane composed of isocyanate and polyol, polyacryl, polyamide resin and the like.

By the way, with regard to the decorative material of the present invention, the vertical cut-off material used for the waist wall has been mainly described, but the decorative material of the present invention is not limited to this, and is used for the ceiling as described above. It is provided between decorative panels.
In addition, the examples used in the description exemplify typical examples of the decorative material of the present invention, and the present invention is not limited to these examples. Further, in the description so far, a decorative sheet has been described as an example of the decorative finish of the surface of the decorative material of the present invention. However, the decorative finish is not limited to this. The finish may be a transfer layer to which a pattern print layer or a surface protective layer for improving design properties or surface properties is transferred, or may be a coated layer.

[0049]

As has been described so far, the decorative material of the present invention is lightweight, has elasticity and moderate rigidity and is easy to handle, and can be used for cutting or the like during construction on site such as a jigsaw or an electric saw. This provides an excellent effect that the cutter can be easily cut without any loss without using a cutter knife. Also, when fixing it to the indoor wall surface with nails or tuckers, anyone can easily fix it without having to pay attention to cracks, etc. which had to be careful in case of solid wood, MDF, plywood etc. This has an excellent effect that the property is significantly improved. Further, the decorative material of the present invention,
It is an extruded product made of a synthetic resin, and has an excellent effect that a flexible shape can be produced at low cost and with high productivity. In particular, by using the decorative material of the present invention as a longitudinal cut-off material provided to a waist wall wrapped with a decorative sheet having a surface protective layer made of an ionizing radiation-curable resin, the decorative material of the present invention has a more excellent effect. To play.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing one embodiment of a waist wall using a decorative material according to the present invention.

FIG. 2 is a perspective view showing a first embodiment of a longitudinal cutting material according to the present invention.

FIG. 3 is a sectional view taken along line XX of FIG. 1;

FIG. 4 is a perspective view showing a second embodiment of a longitudinal cutting material according to the present invention.

FIG. 5 is a cross-sectional view showing a schematic layer configuration of a decorative sheet used for a longitudinal cutting material according to the present invention.

FIG. 6 is a cross-sectional view showing one specific example of a decorative sheet used for a longitudinal cutting material according to the present invention.

FIG. 7 is a cross-sectional view showing another specific example of the decorative sheet used for the longitudinal cutting material according to the present invention.

[Explanation of symbols]

 10, 10 'vertical cut-off material 11 strip 12 recess 13, 13' wall support 14 space 20 decorative panel 30 upper edge material 40 lower edge material 50 door frame 60 indoor wall surface 70, 70 ', 70' 'decorative sheet 71, 71 ', 71' 'synthetic resin sheet 72, 72', 72 '' primer layer 73 surface protection layer 74 uneven pattern 75 wiping ink 76 picture printing layer 77 solid printing layer 78 adhesive layer 100 waist wall 121 bottom wall 122 board L-shaped protruding piece 122 'L-shaped plate-shaped protruding piece 123

Claims (6)

[Claims] 1. A decorative material installed between decorative panels, comprising a concave portion having a substantially U-shaped cross section in a longitudinal direction of a substantially central portion of a belt-shaped body made of a synthetic resin extruded product, and a bottom wall of the concave portion. And a wall supporting body formed on both sides of the bottom wall and formed of a plate-shaped protruding piece that is connected to the bottom wall and symmetrically formed with respect to the recess and that is shorter than the width direction dimension of the band-shaped body and protrudes in a flat plate shape. A decorative material characterized by that. 2. An L-shaped section having a substantially L-shaped cross section, wherein the plate-shaped protrusion has a protrusion protruding symmetrically with respect to the recess toward the band-shaped body at an edge extending in the longitudinal direction of the plate-shaped protrusion. The decorative material according to claim 1, wherein the decorative material is a letter-shaped plate-shaped protruding piece. 3. The width of the recess is 5 to 10 mm long, the width of the wall support is 20 to 25 mm long, and the width of the strip is 35 to 50 mm.
The decorative material according to claim 1, wherein: 4. The decorative material according to claim 1, wherein at least the exposed surface is decoratively finished. 5. The decorative material according to claim 4, wherein said decorative finish is obtained by attaching a decorative sheet. 6. The decorative material according to claim 5, wherein the decorative sheet is a synthetic resin sheet having a surface protective layer made of an ionizing radiation curable resin on the outermost surface on the exposed side.