JP2001055826A - Decorative material for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold the same various performance as a vinyl chloride cushion floor by laminating a pattern layer and a transparent resin protective layer on a cushioning layer using a polyolefinic resin as a material. SOLUTION: A transparent resin protective layer 5 by curing a pattern layer 4 and a curing resin is laminated in this order via a coloring layer 7 on a cushioning layer 3 composed of a polyolefinic resin and/or rubber layer, a foaming layer composed of these materials or a latex impregnated fiber sheet. A backing layer 2 is laminated on an under surface of the cushioning layer 3. The cushioning layer 3 desirably includes 0.1 to 40% of an inorganic filler or 0.1 to 40% of an organic filler composed of natural fiber of wood flour or bamboo flour. Thus, even if the polyolefinic resin is used as the material, various performance held by a conventional vinyl chloride cushion floor can be held.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative floor material mainly made of a polyolefin resin, which is made with a cushioning layer made of a polyolefin resin or / and rubber.

[0002]

2. Description of the Related Art Various kinds of floor decorative materials are known as a finishing material to be applied as a finishing material on a concrete surface or a floor of a plywood for flooring. A so-called PVC cushion floor having layers is known. The PVC cushion floor uses asbestos, glass cloth, etc. as a backing material, applies a foamable sol of polyvinyl chloride resin, heats it, forms a foam layer,
It has been subjected to pattern printing and surface coating, and has irregularities as required, and is commercially available as a long sheet having a width of about 1 m to 4 m and a length of several tens of meters. Although this PVC cushion floor has disadvantages such as not always suitable for parts where walking frequency is intense, and the point where burning cigarettes causes scorching and difficult to repair, it has water resistance, It is used for floor finishing of houses and stores because it has the advantages of suppressing walking sounds, having excellent decorative properties, and being capable of uniform construction with few seams.

[0003] The polyvinyl chloride resin used as the material is flame-retardant, the degree of hardness and softness can be adjusted by adding a plasticizer, and the texture of the surface can be freely formed by embossing. Although it has advantages such as being able to be used and the price being stable because it is widely used, recently chlorine and polyvinyl chloride resin have a portion derived from phthalate ester as a plasticizer, Reactive under high temperature during incineration, highly toxic 2,3,7,8-tetrachloro-dibenzodioxin and similar compounds with different substitution numbers and substitution positions of chlorine (generally called dioxin) Is considered a problem. Therefore, with regard to products made of polyvinyl chloride resin, various materials in the living environment, such as interior and exterior of buildings, surface materials of furniture, and miscellaneous goods, are being actively replaced with other materials.

[0004] As a synthetic resin other than the polyvinyl chloride resin, a polyolefin resin containing no chlorine is attracting attention, and a floor decorative material using a general-purpose resin such as a polypropylene resin or a polyethylene resin has been studied. Is underway. In contrast to wall and ceiling cosmetics, which are not subjected to extreme loads, floor cosmetics are different from wall and ceiling cosmetics when used in people and lightweight vehicles ( (Strollers, shopping carts, wheelchairs, etc.), as well as dynamic loads such as back and forth, as well as static loads such as furniture and other items being placed in the same position for a long period of time. Requirements. Depending on the part used,
The main requirements are, for example, cushioning and good walking feeling, low walking sound, no roll-up of seams that cause stumbling (= no surface shrinkage), usage conditions Abrasion resistance suitable for a long time, and that an article is hard to be left after being placed for a long time. Although the above-mentioned PVC cushion floor has been almost completely eliminated as a result of improvements made by use in other years, the polyvinyl chloride resin used in the PVC cushion floor was simply replaced with a polyolefin resin. However, these requirements are not always satisfied, and improvements are being made.

[0005]

In the present invention, a floor covering material such as a PVC cushion floor is mainly made of a polyvinyl chloride resin, but instead of a polyvinyl chloride resin, it is mainly made of a polyolefin resin. It is an object of the present invention to provide a floor decorative material having at least various performances that a conventional PVC cushion floor retains when used as a material.

[0006]

For this reason, the conventional foamed layer of polyvinyl chloride resin is replaced with a foamed layer of polyolefin-based resin and / or rubber, and the surface is preferably made of a curable resin. With regard to traces, by providing a colored layer, a reinforcing layer, and a transparent resin protective layer on the cushioning layer to cope with the problem, it is possible to provide a floor decorative material having various performances held by the conventional PVC cushion floor. did it.

In the first invention, a pattern layer and a curable resin are cured on a polyolefin resin or / and rubber layer, a foamed layer composed of these materials, or a cushioning layer composed of a latex-impregnated fibrous sheet. The present invention relates to a decorative material for floors, wherein transparent resin protective layers are laminated in this order. The second invention relates to the decorative material for floors according to the first invention, wherein a pattern layer is laminated on the cushioning layer via a coloring layer. The third invention relates to the decorative material for floors according to the first invention, wherein a pattern layer is laminated on the cushioning layer via a reinforcing layer. 4th
The invention according to the first aspect, on the cushioning layer,
The present invention relates to a decorative material for floors, wherein a pattern layer is laminated via a reinforcing layer and a coloring layer. The fifth invention relates to the decorative material for floors according to the first invention, wherein a pattern layer is laminated on the cushioning layer via a reinforcing layer and a coloring layer. The sixth invention is the floor for a floor according to any one of the first to fifth inventions, wherein the transparent resin protective layer is formed by crosslinking and curing a thermosetting resin composition or an ionizing radiation-curable resin composition. It is related to cosmetic materials. In a seventh aspect, in any one of the first to fifth aspects, a transparent synthetic resin layer made of a thermoplastic resin having a transparent resin protective layer provided on a pattern layer, and a thermosetting resin composition or ionizing radiation cured The present invention relates to a decorative material for floors, comprising a cured coating film obtained by crosslinking and curing a reactive resin composition. An eighth invention relates to the decorative material for floors according to the sixth or seventh invention, wherein the surface of the transparent resin protective layer has irregularities.
A ninth invention relates to the decorative material for floors according to any one of the first to eighth inventions, wherein a backing layer is laminated on a lower surface of the cushioning layer.

[0008]

1 to 5 are sectional views showing examples of the structure of a floor decorative material according to the present invention. Since there are many common parts, differences will be mainly described. The floor decorative material 1 shown in FIG. 1 has a backing layer 2, a cushioning layer 3, a pattern layer 6, and a transparent resin protective layer 5 having irregularities on the surface sequentially laminated from below. The backing layer 2 is for ensuring adhesiveness with the base, and also contributes to improvement of dimensional stability. The cushioning foam layer 3 is for imparting cushioning properties to the floor covering material 1, improving walking feeling, and reducing walking sounds. The pattern layer 4 is provided in order to improve the appearance design of the floor decorative material 1, and is commonly provided by printing or transfer. The transparent resin protective layer 5 has a function of ensuring the abrasion resistance of the surface and of easily removing dirt when contaminated, and is configured using a curable resin. The transparent resin protective layer 5 has a coloring layer 7 and a reinforcing layer
At the same time, it also has the function of suppressing elongation and making it hard to leave traces. In addition, the unevenness 6 formed on the surface of the transparent resin protective layer 5 has a change in appearance, improves the texture, and controls the slip property during walking or the like.

The floor decorative material 1 shown in FIG. 2 is obtained by laminating a colored layer 7 between the cushioning layer 3 and the pattern layer 6 shown in FIG. The first role of the coloring layer 7 is to conceal the base and give an intended color. In this configuration, the pattern layer 4 may be formed after the coloring layer 7 is laminated on the foam layer 3, but rather, the pattern layer 4 is formed by printing on another coloring film to be the coloring layer 7. Further, forming the transparent resin protective layer 5 on the cushioning layer 3 is easier to handle than printing or transferring to a thick foamed layer. Further, the coloring layer 7 has a function of suppressing elongation together with the transparent resin protective layer 5 so as to make it difficult to leave traces.

The floor decorative material 1 shown in FIG. 3 has a reinforcing layer 8 laminated between the cushioning layer 3 and the pattern layer 4 instead of the coloring layer 7 shown in FIG. The reinforcing layer 8 is for suppressing the occurrence of traces that occur when furniture and the like are placed on the floor decorative material 1 for a long period of time, and is made of a material having high tensile strength. A material having such a property that even if it is locally expanded, it returns to its original state when the load is removed.

The floor decorative material 1 shown in FIG. 4A has a reinforcing layer 8 and a colored layer 7 on the cushioning layer 3 shown in FIG.
Are sequentially laminated, and the pattern layer 4 is laminated. The layer configuration is the most multilayered, but there is an advantage that each layer can share its function. The floor decorative material 1 shown in FIG. 4B also has a structure for giving high abrasion resistance although it is also a multilayer, and the decorative layer 1 and the transparent resin protective layer 5 shown in FIG. Another transparent resin layer 5 'is interposed between them.

The floor decorative material 1 shown in FIG. 5 is the same as that shown in FIG. 4 except that the reinforcing layer 8 and the coloring layer 7 serve as one layer 7 (8). 4 has the same functions as those shown in FIG. 4, but has a simplified layer configuration. The material of each layer, the forming method, and the like will be described below.

The cushioning layer 3 is made of a polyolefin resin or / and rubber layer, a foamed layer made of these materials, or a rubber-impregnated fibrous sheet.

Polyolefin resins suitable for applications such as floor decorative materials are roughly classified into two types: non-elastomer polyolefin resins and polyolefin thermoplastic elastomers.

As one type of non-elastomer, specifically, polyethylene (low density or high density),
Highly crystalline ones such as polypropylene (isotactic type, syndiotactic type, or a mixture thereof), polymethylpentene, polybutene, ethylene / propylene copolymer, and propylene / butene copolymer are available.

The other type of polyolefin-based thermoplastic elastomer includes the following (1) to (8).

(1) The main raw material is made of high-density polyethylene or isotactic polypropylene as a hard segment, and further contains an elastomer as a soft segment and, if necessary, an inorganic filler.
Here, as the elastomer, a diene rubber, a hydrogenated diene rubber, an olefin elastomer or the like is used. Examples of the diene rubber include isoprene rubber, butadiene rubber, butyl rubber, propylene / butadiene rubber, acrylonitrile / butadiene rubber, acrylonitrile /
Examples include isoprene rubber and styrene / butadiene rubber.
The hydrogenated diene rubber is obtained by adding a hydrogen atom to at least a part of the double bond of the diene rubber molecule, and suppresses crystallization of the polyolefin resin (high-density polyethylene or polypropylene in the present invention).
It has improved flexibility. The olefin elastomer is an elastic copolymer to which at least one polyene copolymerizable with two or three or more olefins is added, and the olefin is ethylene, propylene, α
An olefin or the like is used;
Hexadiene, cyclic dienes, norbornene and the like are used. Preferred olefin copolymer rubbers include, for example, elastic copolymers containing an olefin as a main component, such as ethylene / propylene copolymer rubber. In addition, these elastomers may be appropriately cross-linked by using a cross-linking agent such as an organic peroxide or sulfur, if necessary.

(2) Those in which the hard segment is isotactic polypropylene and the soft segment is atactic polypropylene, and preferably those in which the ratio of the latter is less than 5% by weight (described in JP-B-6-23278).

(3) A copolymer of ethylene / propylene / butene containing one of three structural isomers of 1-butene, 2-butene or isobutylene as butene. The following (3a) to (3c) are typical. (3a) A ternary random copolymer of ethylene / propylene / butene, in which propylene in the monomer is preferably 90% by weight (described in JP-A No. 9-111055). (3b) An amorphous material comprising a terpolymer of ethylene / propylene / butene and a crystalline polypropylene having a propylene component content of 50% by weight or more (described in JP-A-5-77371). . (3c) The content of propylene and / or 1-butene is 5
0% by weight or more of low-crystalline and crystalline polyolefin such as isotactic polypropylene,
One containing 0.5% by weight of an oil gelling agent (Japanese Patent Laid-Open No. 7-3)
No. 16358).

(4) The hard segment is polyethylene,
A crystalline rubber such as polypropylene or polymethylpentene, and a monoolefin copolymer rubber such as an ethylene / propylene non-conjugated diene terpolymer rubber having a soft segment partially cross-linked (described in JP-B-53-21021) ).

(5) An olefin copolymer (crystalline) as a hard segment and an uncrosslinked monoolefin copolymer rubber as a soft segment are heated and subjected to a shear stress while being partially crosslinked (particularly). Kosho 53-34
No. 210).

(6) A peroxide-decomposable olefin polymer, such as isotactic polypropylene, propylene / ethylene copolymer, or propylene / butene, which has a reduced molecular weight and increased fluidity when mixed and heated with peroxide. 1
A copolymer as a hard segment, a peroxide-crosslinked monoolefin polymer whose fluidity is reduced by the same operation, for example,
Ethylene / propylene copolymer rubber, ethylene / propylene / non-conjugated diene terpolymer rubber, etc. are used as soft segments. Hydrogen rubber, etc., obtained by mixing and heating in the presence of a peroxide (JP-B-56
No. 15741).

(7) Ethylene / styrene / butadiene copolymer (described in JP-A-2-139232).

(8) The olefin elastomer of the above (1) to (7) having a hydroxyl group or a carboxyl group.

The rubber constituting the cushioning layer 3 includes natural rubber, recycled rubber, styrene-butadiene rubber,
Examples include acrylonitrile-butadiene rubber, chloroprene rubber, butyl rubber, polysulfide rubber, silicone rubber, polyurethane rubber, stereo rubber (synthetic natural rubber), ethylene propylene rubber, or block copolymer rubber (SBS, SIS, SEBS, etc.).
These rubbers may be a layer of rubber alone, a foamed layer, a layer blended with a polyolefin resin, or a foamed layer of a Brent product, or a rubber-impregnated fibrous sheet in which a fibrous sheet is impregnated with rubber latex. The cushioning layer of the floor decorative material of the present invention can be constituted, and as the fibrous sheet impregnated with rubber latex, a sheet made of a fibrous metal, an asbestos sheet,
Woven or non-woven fabric of glass fiber, woven or non-woven fabric of natural fiber or synthetic fiber, paper, flame-retardant paper, and the like are preferable, and long fiber is preferable. The impregnation rate is 10 to 6
It is about 0%. The thickness of the cushioning layer 3 is 0.5 mm
About 5 mm is preferable.

In order to form a foamed sheet using the above-mentioned polyolefin resin, rubber, or latex, a coloring agent, a stabilizer, an antioxidant, a filler and the like may be blended as necessary, or After forming a sheet containing a foaming agent so as to obtain a magnification, the sheet is heated and foamed, or foamed while being formed into a sheet to form a foamed layer, and the cushioning layer having a thickness of about 0.5 mm to 5 mm. 3 is assumed. When the foaming ratio is too large, the strength of the floor decorative material is reduced and a trace is easily formed, and when the foaming ratio is too small, cushioning does not occur. Double is preferred. In addition, when used indoors or in a place where walking is not frequently performed, the walking speed is generally slow, and the impact brought by the pedestrian is relatively small. It may be soft. On the other hand, in the passages, corridors, stairs, store floors and the like inside and outside a highly public building, since the walking speed is high and the impact of the shoes is large, a hard sheet which is not foamed is used as the cushioning layer 3. It is more suitable for walking feeling and durability. The cushioning layer 3 can be colored without laminating a coloring layer 7 described later, but when foamed, the surface becomes rough and the intended color may not be obtained.

The cushioning layer 3 is made of a polyolefin resin or / and rubber layer, a foamed layer made of these materials, or a rubber-impregnated fibrous sheet. If necessary, an inorganic filler (for example, Aluminum hydroxide) may contain 0.1 to 40%, more preferably 30% or less, or 0.1 to 40%, more preferably 30% or less, an organic filler composed of natural fibers of wood flour or bamboo flour. . If the content is less than the lower limit, the effect of the content is not exhibited, and if it exceeds the upper limit, the mechanical strength of the cushioning layer 3 decreases. Any of the fillers can save the material of the main component constituting the cushioning layer 3 and can improve the dimensional stability of the cushioning layer 3. In particular, since the cushioning layer 3 containing bamboo powder has an antibacterial effect and a fungicide effect, it can impart antibacterial and fungicidal properties to the floor covering material.

If necessary, the cushioning layer 3 may be subjected to a corona discharge treatment or an ozone treatment on one or both surfaces to improve the adhesiveness. Also, in the same gist, preferably on the surface after the corona discharge treatment,
A primer layer may be formed beforehand. As a resin constituting the primer layer, a polyester resin, a polyurethane resin, an acrylic resin, a polycarbonate resin, a polyvinyl butyral resin, a nitrocellulose resin, or the like can be used, and an alkyl titanate-based or ethyleneimine-based compound can also be used. These resins and compounds are used alone,
Or mixed and made into a paint composition or an ink composition,
The primer layer is formed using an appropriate coating means or printing means.

The colored layer 7 is a colored film made of a synthetic resin formed separately or a colored coating film obtained by applying a synthetic resin paint using a synthetic resin as a binder. In the case of the former synthetic resin colored film, a film composed of the above-mentioned polyolefin-based resin is preferable, but a film mainly composed of a polypropylene resin, which is a typical polyolefin resin, or a film mainly composed of a polyethylene resin is preferred. However, any of them can be used. However, when a material mainly composed of a polyethylene resin is used, for example, when the lower layer is made of a heat-fusible resin such as an EVA resin, there is an advantage that heat fusion with the lower layer can be performed. is there. The colored layer 7 may be made of a plastic other than polyolefin, and may be composed of, for example, the following resins; specifically, polyvinyl alcohol resin, ethylene-vinyl acetate copolymer resin, ethylene -Vinyl alcohol copolymer resin, polyethylene terephthalate resin, polybutylene terephthalate resin, polyethylene naphthalate-isophthalate copolymer resin, polymethyl methacrylate resin, polyethyl methacrylate resin, polybutyl acrylate resin, nylon 6 or nylon 66, etc. Polyamide resin, cellulose triacetate resin, cellophane, polystyrene resin, polycarbonate resin, polyarylate resin, polyimide resin and the like. In addition, a polyvinyl chloride resin, a polyvinylidene chloride resin, or a vinyl chloride-vinyl acetate copolymer resin may also form a colored layer in the decorative material for flooring of the present invention, but a problem during incineration remains. It is preferable to avoid using a resin containing chlorine in the structure, such as a polyvinyl chloride resin, or a phthalate ester plasticizer from each layer constituting the cosmetic material.

The colored layer 7 may be a colored coating film obtained by applying a synthetic resin paint using a synthetic resin as a binder. Examples of the synthetic resin that can be used as a binder include rosin-modified maleic resin, nitrocellulose, cellulose acetate, cellulose butyrate acetate, ethyl cellulose, polyamide resin, chlorinated rubber, cyclized rubber, polyamide resin, polyvinyl chloride resin, vinyl chloride / acetic acid. Vinyl copolymer resin,
Thermoplastic resin such as ethylene / vinyl acetate copolymer resin, chlorinated polypropylene or acrylic resin, polyurethane resin, phenolic resin, resorcinol resin, furan resin, epoxy resin, unsaturated polyester resin, polyimide, polyamideimide, polybenzimidazole Or a thermosetting resin such as polybenzothiazole.

The thickness of the colored layer 7 is about 10 to 500 μm for a colored film, and 1 to 50 μm for a colored film.
It is about μm. As described above, the colored layer 7 may be a separately formed synthetic resin colored film, or a colored coating film obtained by applying a synthetic resin paint using a synthetic resin as a binder. , Respectively. When the colored layer 7 is formed of a synthetic resin colored film separately formed, the pattern layer 4 can be formed by directly applying the synthetic resin colored film to a printing machine, and the object to be printed is thin and printed at high speed. There is an advantage that is easy to do. When the coloring layer 7 is composed of a colored coating film of a synthetic resin paint, it is usually applied on the cushioning layer 3, so that during subsequent printing, the cushioning layer (which may be accompanied by a backing layer) and the coloring Since the layered body of the layers is to be printed, the printing target is thick and is not suitable for high-speed printing. In general, a separately formed film is stronger in strength than a coating film, and is advantageous in that the occurrence of traces can be suppressed. When the coloring layer is a film separately formed, a low foaming sheet having a low foaming ratio may be used.

As described above, the reinforcing layer 8 is used for the purpose of preventing the floor decorative material 1 of the present invention from being left behind and is made of a material having a high tensile strength. It is made of a material having the property of returning to its original state when the load is removed even if it is locally expanded when furniture or the like is placed. The reinforcing layer 8 is preferably a separately formed film or a glass fiber non-woven fabric (= glass paper) having high dimensional stability. In the case of a formed film, a cross-linked film is more preferable. When constituted by a coating film, it is preferable that a thermosetting resin or an ionizing radiation-curable resin is cured.

As described above with reference to FIG. 4, the reinforcing layer 8 and the coloring layer 7 may be overlapped with each other to have their respective functions. However, as shown in FIG. And the reinforcing layer 8
It is also possible to use the reinforcing layer and the colored layer 7 (8) which also has the function of the colored layer 7. When the above-mentioned reinforcing layer 8 is formed, a coloring agent such as a pigment or a dye is blended to obtain a reinforcing layer / colored layer 7 (8).

The pattern layer 4 is for imparting an appearance design value to the floor decorative material of the present invention, and is usually formed by a direct printing method using ink or printed on a release sheet. Is formed by a transfer method using a transfer sheet obtained as described above. However, when the layer immediately below the pattern layer 4 (usually the cushioning layer 3 or the coloring layer 7) is colored, the pattern layer 4 may be omitted or only the pattern may be replaced with mere coloring. May be performed. As a printing method, a gravure printing method, which has a wide selection range of a binder in consideration of adhesiveness, is suitable, but other methods may be used. In addition, an electrophotographic method, an ink jet, or the like can be used in principle as a means for forming the pattern layer 4. The pattern of the pattern layer 4 may be arbitrary, and is selected according to the application. Tile patterns, marble and other stone patterns, fabrics, cork patterns,
Wood grain is preferred. As for the wood grain, a pattern in which narrow boards are arranged and a parquet pattern are preferred from the customary flooring convention, but are not limited to these patterns.
In the case of using the transfer method and using a pattern having left and right sides, it is preferable to print using a so-called reverse plate created by reversing the left and right sides. When the coloring layer 7 or the reinforcing layer / coloring layer 7 (8) is not provided below the pattern layer 4, the lower layer of the pattern layer 4 is uniformly colored, and the pattern layer 4 is formed thereon.
Should be formed.

As the binder of the ink used for forming the pattern layer 4, an acrylic resin, a polyurethane resin, a polyamide resin, or the like is preferable, and these are used alone or in combination. When the pattern layer 4 is formed of ink, a coloring agent such as a pigment or a dye contained in the ink tends to have a negative effect on the adhesiveness.
Is coated with a colorless reducer (also referred to as extender, medium, etc.) containing the same binder as the ink used to form the pattern layer 3 and containing no coloring agent, to form a transparent resin layer. If you form it,
The adhesion on the pattern layer 4 is improved, which is preferable. The transparent resin layer is for improving the adhesiveness. However, if it is desired to further improve the adhesiveness, an adhesive such as a polyurethane resin may be applied. The transparent resin layer provided for improving the adhesiveness is usually sufficient if it has a thickness of several μm, but in a more positive sense, it is about the same as the colored layer 7 (especially equivalent to the case where the colored layer is formed of a colored film). Thickness, i.e., 10
A transparent resin film having a thickness of about 500 μm, preferably about 50 to 200 μm may be used. By laminating a thick transparent resin layer on the pattern layer, abrasion resistance is improved. Even with such a thick transparent resin layer, further lamination of the following transparent resin protective layer 5 can further improve the abrasion resistance. In the case of so-called heavy walking, a thick coating is formed on the pattern layer 4 in this way.

The transparent resin protective layer 5 is for imparting abrasion resistance, stain resistance and the like to the surface of the decorative material 1 for a floor, and can be made of a thermoplastic resin. It can also be made of a polyolefin resin in line with the material of No. 7, and when it is made of a polyolefin resin, it is made by melting and extruding the resin, so it is a multilayer sheet composed of a plurality of layers having different properties. Is also good. For example, the lower layer is made of a resin having good adhesiveness to a lower sheet to be coated, while being made of a hard resin as a whole. When it is desired to improve the surface properties of the floor decorative material, the transparent resin protective layer 5 is preferably formed using a curable resin. In addition, the transparent resin protective layer 5 also has a function of suppressing elongation and hardly leaving traces together with the coloring layer 7 and the reinforcing layer 8, and further has irregularities 6 on the surface, and Is to improve the texture and to control the slip property during walking or the like. As the binder constituting the transparent resin protective layer 5, a thermosetting resin composition using a thermosetting resin, or an ionizing radiation-curable resin composition that cures by irradiation of ultraviolet rays or electron beams is used. Irradiation with ionizing radiation for crosslinking and curing further improves physical and chemical properties.

The thermosetting resin constituting the thermosetting resin composition includes polyurethane resin, phenol resin, resorcinol resin, furan resin, epoxy resin, unsaturated polyester resin, polyimide, polyamideimide, polybenzimidazole, or Polybenzothiazole and the like can be used.

As the ionizing radiation-curable resin composition for forming the transparent resin protective layer 5, a prepolymer, an oligomer and / or a monomer having a polymerizable unsaturated bond or an epoxy group in a molecule are appropriately mixed. It was done. Ionizing radiation refers to electromagnetic waves or charged particle beams having energy quanta that can polymerize or crosslink molecules, and usually use ultraviolet rays or electron beams. Among ionizing radiations, electron beams have a high property of penetrating the material, and if there is a resin containing chlorine such as polyvinyl chloride resin in the lower layer, it tends to turn yellow, but other resins, especially polyolefin-based resins When a resin is used, a disadvantage that the color is easily changed to yellow hardly occurs.

Examples of the ionizing radiation-curable resin composition used as a binder constituting the transparent resin protective layer 5 include unsaturated polyesters such as a condensate of an unsaturated dicarboxylic acid and a polyhydric alcohol, polyester methacrylate, polyether methacrylate, and the like. Methacrylates such as polyol methacrylate and melamine methacrylate, polyester acrylate, epoxy acrylate, urethane acrylate, polyether acrylate, polyol acrylate, acrylate such as melamine acrylate,
Cationic polymerization type epoxy compounds are exemplified.

Examples of monomers in the ionizing radiation-curable resin composition include styrene monomers such as styrene and α-methylstyrene, methyl acrylate, and acrylic acid-2-
Acrylic esters such as ethylhexyl, methoxyethyl acrylate, butoxyethyl acrylate, butyl acrylate, methoxybutyl acrylate, phenyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, methoxyethyl methacrylate, methacrylic acid Methacrylic esters such as ethoxymethyl, phenyl methacrylate and lauryl methacrylate; 2- (N, N-diethylamino) ethyl acrylate; 2- (N, N-dimethylamino) ethyl acrylate; -2 acrylic acid -(N, N-dibenzylamino) methyl, unsaturated substituted substituted alcoholic esters such as 2- (N, N-diethylamino) propyl acrylate, unsaturated carboxylic acid amides such as acrylamide and methacrylamide, ethylene Guri Diacrylate, propylene glycol diacrylate, neopentyl glycol diacrylate, 1,6-hexanediol diacrylate, triethylene glycol diacrylate, and other compounds, dipropylene glycol diacrylate, ethylene glycol diacrylate, propylene glycol dimethacrylate, diethylene glycol Polyfunctional compounds such as dimethacrylate and / or polythiol compounds having two or more thiol groups in the molecule, for example, trimethylolpropane trithioglycolate, trimethylolpropane trithiopropylate, pentaerythritol tetrathioglycolate, etc. Is mentioned.

Usually, as the monomer in the ionizing radiation-curable resin composition, one or a mixture of two or more of the above compounds may be used, if necessary. In order to provide suitability, it is preferable that the content of the prepolymer or oligomer is 5% by weight or more and the content of the monomer and / or polythiol compound is 95% by weight or less.

When flexibility is required when the ionizing radiation-curable resin composition is applied and cured, the amount of the monomer may be reduced, or an acrylate monomer having one or two functional groups may be used. . When abrasion resistance, heat resistance, and solvent resistance when applying and curing an ionizing radiation-curable resin composition are required, use ionizing radiation such as using an acrylate monomer having three or more functional groups. It is possible to design a curable resin composition. Here, the functional group is 1
Examples thereof include 2-hydroxyacrylate, 2-hexyl acrylate, and phenoxyethyl acrylate. Examples of those having two functional groups include ethylene glycol diacrylate and 1,6-hexanediol diacrylate. Examples of the compound having three or more functional groups include trimethylolpropane triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, and dipentaerythritol hexaacrylate.

When the ionizing radiation-curable resin composition is cured by irradiation with ultraviolet rays, a photopolymerization initiator or a photopolymerization accelerator is added. As the photopolymerization initiator, in the case of a resin system having a radically polymerizable unsaturated group, acetophenones, benzophenones, thioxanthones, benzoin, benzoin methyl ether or the like is used alone or as a mixture. In the case of a resin system having a cationically polymerizable functional group, an aromatic diazonium salt, an aromatic sulfonium salt, an aromatic iodonium salt, a metaceron compound, a benzoin sulfonic acid ester, or the like is used alone or as a mixture as a photopolymerization initiator. . The addition amount of the photopolymerization initiator,
0.1 parts by weight based on 100 parts by weight of the ionizing radiation-curable resin composition.
It is 1 to 10 parts by weight.

In order to improve the abrasion resistance of the surface of the transparent resin protective layer 5, the transparent resin protective layer 5 preferably contains spherical particles which are inorganic and have higher hardness than the crosslinked and cured resin. The addition of high hardness spherical particles achieves further surface strengthening. Here, the spherical particles need not be true spheres,
The surface should just be smooth. The role of the spherical particles is to prevent a part of the surface protective layer from protruding from the surface of the surface protective layer, to receive the external force that causes abrasion on the surface of the spherical particles, and to prevent the wear of the lower layer by gradually wearing the spherical particles themselves. It is. Examples of the spherical particles include α-alumina, silica, chromium oxide, iron oxide, diamond, graphite, and the like.
Spherical α-alumina (spherical alumina AS-10 to AS50 manufactured by Showa Denko KK) can be recommended because of its high hardness and many spherical ones. The average particle diameter of the spherical particles is preferably 5 to 100 μm. When inorganic spherical particles are used for the surface protective layer, they may be treated in advance with a silane coupling agent or the like in order to increase the adhesion in the resin constituting the surface protective layer.

The transparent resin protective layer 5 may contain a matting agent or the like for adjusting the gloss of the surface as long as the transparency of the lower layer is not hindered. The matting agent is, for example,
There are silica or calcium carbonate, shirasu balloon, resin beads and the like. As the antiwear agent or matting agent, a material having a small difference in the refractive index of light from the resin and high transparency is selected and used, or the addition amount is not excessive.

In the present invention, since the transparent resin protective layer 5 is formed on the pattern layer 4, at least a part of the pattern constituting the pattern layer 4 is coated with a resin composition for forming a transparent resin protective layer. If it is made of a liquid-repellent pattern that has the property of being repelled when it is made, a concave portion is formed because the transparent resin protective layer is not formed on the liquid-repellent pattern substantially, or it is formed very thin compared to the surroundings And unevenness corresponding to the pattern can be formed on the surface. In addition, irregularities may be formed on the surface of the transparent resin protective layer 5 by embossing, and there are irregularities in a pattern conforming to the pattern of the pattern layer 4, irregularities in the texture, uniform irregularities such as satin, and the like. .

Since the floor decorative material of the present invention is mainly composed of a polyolefin resin, there is an adverse effect due to ultraviolet rays such as sunlight and fluorescent lights when actually used. This adverse effect is accompanied by a decrease in the adhesiveness between the laminated layers and, in severe cases, peeling, and therefore, it is good to take measures for this. Add an additive composed of an ultraviolet absorber and a light stabilizer. The layers to be added are the transparent resin protective layer 5 and the pattern layer 4. Additives are better than adding to one layer
The addition to the two layers has the effect of adding the decorative material as a whole, and may further increase the layer to which the additive is added.

To apply an additive consisting of an ultraviolet absorber and a light stabilizer, an appropriate amount is kneaded or dispersed in a resin composition, a coating composition or an ink composition for forming a target layer. Thereafter, film formation, application or printing is performed using them. When adding an additive to the transparent layer or the colored layer, the additive was heated and melted together with the resin pellets or mixed, or the additive was previously melt-mixed in a small amount of resin pellets. Alternatively, a method of melt-mixing the material with a required amount of resin pellets may be used.

As the ultraviolet absorber, the following (1) to
Something like (5) can be used. (1) Benzophenones; 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxy-benzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-methoxy-benzophenone-5-sulfonic acid. (2) benzotriazole type; 2- (2′-hydroxy-5′-methylphenyl) benzotriazole,
(2′-hydroxy-3′-t-butyl-5′-methylphenyl) -5-chlorobenzotriazole, 2-
(2′-hydroxy-3 ′, 5′-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2′-
Hydroxy-3 ', 5'-dicumylphenyl) phenylbenzotriazole, 2- (2'-hydroxy-3'-
Dodecyl-5'-methylphenyl) benzotriazole, 2,2'-methylenebis [4- (1,1,3,3-
Tetramethylbutyl) -6- (2H-benzotriazol-2-yl) phenol]. (3) Acrylate; ethyl-2-cyano-3,3 ′
-Diphenyl acrylate, 2-ethylhexyl-2-
Cyano-3,3'-diphenyl acrylate. (4) salicylate; phenyl salicylate, 4-t
-Butylphenyl salicylate. (5) oxanilide type: 2-ethoxy-2′-ethyloxalic acid bisanilide, 2-ethoxyxin-5
t-Butyl-2'-ethyloxalic acid bisanilide. The ratio of adding these ultraviolet absorbers is preferably in the range of 0.1 to 2% by weight based on the resin content of the layer to be added. If less than 0.1% by weight, the effect of addition is poor,
Even if it exceeds 2% by weight, no improvement in the effect is observed.

As a light stabilizer, a hindered amine light stabilizer (Hindered Amine Light) is used.
Take the initials of the English name of Stabilizer, H
The following compounds, commonly referred to as ALS, can be used.
Bis- (2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis- (N-methyl, 2,2,6,
6, -tetramethyl-4-piperidinyl) sebacate,
[Dimethyl succinate-1- (2-hydroxyethyl)-
4-hydroxy-2,2,6,6, -tetramethylpiperidine] condensate, poly {[6- (1,1,3,3-tetramethylbutyl) imino] -1,3,5-triazine-
2,4-diyl [(2,2,6,6-tetramethyl-4
-Piperidyl) imino] hexamethylene [(2,2,
6,6-tetramethyl-4-piperidyl) iminol]}. The ratio of adding these light stabilizers is preferably in the range of 0.1 to 2% by weight based on the resin content of the layer to be added. If it is less than 0.1% by weight, the effect of addition is poor, and if it exceeds 2% by weight, no improvement in the effect is observed.

Although the ultraviolet absorber and the light stabilizer are effective even when used alone, it is not clear why they are used together, but the effects are synergistically improved. Things are desirable. In addition, the ultraviolet absorber and the light stabilizer are inevitable for bleeding during use, and various measures have been taken. However, for the above-mentioned HALS, for example, 4-acryloyloxy is used for the resin constituting the layer. −
2,2,6,6-tetramethylpiperidine, or 4
-Practical use of technology to prevent bleeding by graft copolymerizing a cyclic amine compound having a (meth) acryloyloxy group such as methacryloyloxy-2,2,6,6-tetramethylpiperidine has been started. Good to use.

Since the floor decorative material of the present invention is used by bonding it to concrete or plywood for flooring using an adhesive, when the adhesive is used, the adhesive is applied to the floor. Backing layer 2 to make it easier to adhere to the back of
Are preferably laminated. As the material constituting the backing layer 2, the fibrous sheet mentioned in the description of the rubber-impregnated fibrous sheet can be used in principle, but the asbestos sheet is dusty and may be inhaled by humans. Those using fibers are preferred. The backing layer 2 and the cushioning layer 3 can be laminated by lamination using an adhesive, press-fitting under pressure, and coating the cushioning layer forming composition on the backing layer 2. The backing layer 2 laminated on the cushioning layer 3 also has a function of improving the dimensional stability of the floor decorative material 1. When the backing layer 2 is made of the above-described material, the rigidity of the entire floor decorative material 1 is increased. Therefore, if the rigidity is excessively increased, it is bent when the long decorative floor material 1 is rolled when handled. In some cases, the floor covering material 1 may not return to its original state or may be cracked while being bent. When flexibility is required for the decorative material for floor 1, a resin film such as a polyester resin film (for example, a biaxially stretched film having a thickness of about 12 μm) having an extremely thin and high tensile strength is used. May be used instead of In addition to the polyester resin film, a polyolefin resin film such as a polyethylene resin film or a polypropylene resin film may be used.

The floor decorative material of the present invention can be produced by various procedures. Although various modes have been described for each layer, the most preferable and simplified configuration is to form the backing layer 2, the cushioning layer 3, the pattern layer 4, and the irregularities 6 on the surface from below as shown in FIG. The transparent synthetic resin layer 5 is laminated. With reference to FIG. 2, the procedure of their manufacture will be described. First, as a material, a colored synthetic resin film constituting the colored layer 7 and a foam sheet constituting the cushioning layer 3 are prepared. For colored synthetic resin films,
Printing is performed on the upper surface, and an electron beam curable paint is applied on the printing surface, and the surface is hardened by irradiating with an electron beam, and irregularities such as satin finish are applied. Further, a primer is previously applied to the lower surface of the colored synthetic resin film in order to improve the adhesiveness. Both sheets thus prepared are bonded together by dry lamination using a polyurethane resin adhesive or the like so that the foamed sheet overlaps the lower surface of the colored synthetic resin film on which the primer is applied. afterwards,
A glass cloth or a polyester film is adhered to the lower surface of the foamed sheet using a polyurethane resin-based adhesive or the like, depending on the use, to obtain a product. In other words, a sequential laminating method or a two-stage laminating method is used. In addition,
Lamination of both sheets may be performed by lamination by melt extrusion of any of the sheets, preferably lamination by melt extrusion of a foamed sheet, instead of dry lamination. In addition, a method for forming a pattern layer on a transfer sheet is performed, and a resin layer (for example, a colored layer or a transparent resin protective layer) is formed thereon, and the pattern layer is transferred at the same time. Can also.

Another method is to laminate the above-mentioned colored synthetic resin film, foamed sheet, and backing layer simultaneously with the melt extrusion of the foamed sheet to be the core, and the other is the same as the above-described two-stage lamination. Then, a primer layer is previously formed on the side of the colored synthetic resin film and the backing layer, which is in contact with the foam sheet, to enhance the adhesiveness.

The floor decorative material of the present invention has a structure in which a pattern layer is sandwiched between a colored layer and a transparent resin layer, in particular, each of the colored layer and the transparent resin layer is constituted by a sheet having a thickness of about 50 μm to 200 μm. The doubling sheet may be formed as a “doubling sheet”, and a backing layer may be attached to the lower surface (the surface on the colored layer side) of the doubling sheet. The backing layer may be attached by lamination using an adhesive or by a method using heat fusion. Since the floor covering material dislikes "slipping", as an example, a sheet formed by a combination of a press with heating at 130 ° C. for 10 minutes at a pressure of about 10 kg / cm ² and a press with no heat applied for 10 minutes. It is performed by a leaf press (= meaning a press performed one by one). The floor decorative material of the present invention may have irregularities on the outermost surface, but may have irregularities when forming the outermost surface, or may have irregularities simultaneously when laminating the backing layer,
Alternatively, the unevenness may be formed in another step. Also,
When a foamed sheet is used as the backing layer, either a foamed backing layer may be laminated, or an unfoamed sheet may be laminated and then foamed.

[0056]

(Example 1) Colored sheet made of polyethylene resin having a thickness of 0.9 mm (F-2, manufactured by Tatsuno Chemical Co., Ltd.)
After a corona treatment is performed on the upper surface of 1) so that the wetting index is 40 dyn / cm or more, a primer paint (AFS, manufactured by Showa Ink Industries, Ltd.) using a polyurethane resin as a vehicle is applied to the corona treated surface. Apply to the entire surface using
A primer layer was formed. On the formed primer layer, an ink for forming a colored solid layer (Showa Ink Industry Co., Ltd.)
, UE) and a pattern layer forming ink (EX-5000, manufactured by Showa Ink Industries Co., Ltd.), respectively, to sequentially form a colored solid layer and a pattern layer to obtain a print sheet.
An adhesive mainly composed of a polyurethane resin (Seikabond E295L, manufactured by Dainichi Seika Kogyo Co., Ltd.) was applied onto the printing surface of the obtained printing sheet so that the coating amount was 15 g / m ² (when dried). A transparent polypropylene resin (manufactured by Nippon Polychem Co., Ltd., TX-1950) was melted on the adhesive layer, and extruded using a T-die to a thickness of 150 μm. Laminated on the printed sheet through the formed adhesive layer,
A multi-layer decorative sheet having a printed surface covered with a transparent polypropylene resin layer was obtained. After applying a corona treatment to the upper surface of the transparent resin layer of the obtained multilayer decorative sheet so that the wetting index becomes 40 dyn / cm or more, a primer paint containing an acrylic urethane resin as a resin component on the corona treated surface ( The·
A primer layer is formed by applying the whole surface using Inktec Co., Ltd., EBP3), and then an ionizing radiation-curable resin paint (Dainichi Seika Kogyo Co., Ltd.) is formed on the primer layer.
SEIKA BEAM EBF-03) is applied on the entire surface at an amount of 15 g /
m ² (at the time of drying), and immediately after application, an electron beam (acceleration voltage; 125 KV, irradiation dose; 5 Mrad)
To cure the coating film to obtain a decorative sheet having a surface coated with the cured coating film. The structure of the obtained sheet is such that, in order from the bottom, a colored sheet made of polyethylene resin / primer layer / colored solid layer / picture layer / adhesive layer / transparent polypropylene resin layer / cured coating film is laminated. However, the symbol “/” means that the front and rear layers are stacked on each other.

The following various backing materials were laminated on the back surface of the decorative sheet whose surface was covered with the cured coating film obtained as described above to obtain a floor decorative material. Polypropylene resin sheet Ethylene / vinyl acetate copolymer resin sheet Ethylene / vinyl acetate copolymer resin and polyethylene resin blend resin sheet Foamed sheet of ethylene / vinyl acetate copolymer resin containing calcium carbonate Foamed sheet of ethylene / vinyl acetate copolymer resin Styrene / butadiene rubber foam sheet Laminated glass nonwoven fabric on back of above sheet Laminated glass nonwoven fabric on back of above sheet

The obtained decorative floor material has a walking sensation equivalent to that of a conventional PVC cushion floor even when any of the above-mentioned backing layers is laminated, and there is no problem in construction on the floor. The durability such as abrasion resistance was not inferior.

(Example 2) A colored polypropylene resin film having a thickness of 0.1 mm (manufactured by Mitsubishi Kasei Vinyl Co., Ltd.)
Was corona-treated in the same manner as in Example 1, and then a wood pattern was printed by gravure printing using a two-component curable ink of acrylic urethane resin to obtain a print sheet. The same ionizing radiation-curable resin coating as used in Example 1 was applied on the printing surface of the obtained printing sheet so as to have an application amount of 10 g / m ² (when dried), and immediately after application, , Electron beam (acceleration voltage; 125 KV, irradiation dose; 5 M
rad), immediately apply heat embossing,
A decorative sheet having irregularities on the surface and covered with a cured coating film was obtained. On the back surface (= the surface on the colored polypropylene resin film side) of the obtained decorative paper sheet, 1 mm thick S
A BR rubber foam sheet (= cushion layer) and a 12 μm-thick polyethylene terephthalate resin film (= backing layer) were sequentially laminated via a polyurethane resin-based adhesive to form a floor decorative material. Also, a 2 mm-thick SBR latex-impregnated paper was laminated on the back surface of the decorative sheet similar to the above using an adhesive, and a floor decorative material was similarly formed.

Example 3 A primer layer was formed on the surface of a foamed SBR rubber sheet having a thickness of 1 mm by gravure printing using a two-component curable ink of an acrylic urethane resin. A colored solid layer and a woodgrain pattern were printed using a two-part curable resin ink, and the same amount of ionizing radiation-curable resin paint as used in Example 1 was applied to the entire surface at a coating amount of 10 g / m ² ( (At the time of drying), and immediately after application, an electron beam (acceleration voltage: 12
5 KV, irradiation dose: 5 Mrad), and immediately subjected to heat embossing to obtain a floor decorative material having irregularities on the surface and covered with a cured coating film. As the foamed sheet, a sheet colored in a predetermined color was used, a wood grain pattern was printed without forming a colored solid layer, and the same appearance was obtained even when the other steps were performed in the same manner as above. .

(Example 4) After obtaining a print sheet in the same manner as in Example 2, the same operation was performed.
A decorative sheet having irregularities on the surface and covered with a cured coating film was obtained. A 15-fold foamed polyethylene resin foam sheet (1 mm thick) containing 30% by weight of bamboo powder was applied to the lower surface side of the obtained decorative sheet via a 30 g / m ² glass paper (manufactured by Olivet) using an adhesive. Laminating was performed to obtain a floor decorative material. In order to examine the antibacterial properties of the back surface of the obtained floor covering material, the voluntary standard on quality and safety of the antibacterial product technology council “Antibacterial Product Antibacterial Test Method I (1988 edition)
The antibacterial test was carried out with reference to "Film adhesion method".
However, the test was performed by Staphylococcus
ccus aureus IFO 12732). As a result of the test, the viable count of Staphylococcus aureus was 3.1 × 10 ⁻⁶ before the start of storage, but was 35 × 10 ^−6.
No viable bacteria were detected after storage at a temperature of 24 ° C. for 24 hours, confirming that there was an antibacterial effect.

[0062]

According to the first aspect of the present invention, since a polyolefin resin or / and rubber layer, a foamed layer made of these materials, or a rubber-impregnated fibrous sheet is provided in the lower layer, it has cushioning properties. In addition, there is no problem in terms of walking feeling and walking sound, and since it has a pattern layer on the foam layer, it has a decorative effect, and the outermost surface is covered with a transparent resin protective layer where the curable resin is cured. As a result, it is possible to provide a decorative material for flooring that has an advantage that the physical and chemical properties of the surface are excellent and that traces are relatively hard to adhere. According to the second aspect, in addition to the effects of the first aspect, since the colored layer is provided between the foam layer and the pattern layer, the floor concealing property is high and the decoration effect by the pattern layer is improved. Cosmetic materials can be provided. Further, there is an improvement in the reinforcing effect due to the presence of the colored layer. In the case where the pattern layer is formed by printing, the pattern layer can be formed on a synthetic resin film thinner than the foam layer, so that there is an advantage that high-speed printing can be performed at high speed. According to the third aspect, the first aspect
In addition to the effects of the invention of the first aspect, since the reinforcing layer is provided between the foam layer and the pattern layer, there is an advantage that it is possible to suppress the formation of a trace. According to the fourth invention, in addition to the effects of the first invention,
Since the reinforcing layer and the coloring layer are provided between the foam layer and the pattern layer, there are both advantages added by the second and third inventions. According to the fifth aspect, in addition to the effects of the first aspect, there are the same advantages as the fourth aspect. According to the sixth invention, in addition to the effects of any one of the first to fifth inventions, the transparent resin protective layer is specifically formed by using a thermosetting or ionizing radiation-curing material. There is an advantage that it is easy to make the surface excellent in physical and chemical properties. According to the seventh aspect, in addition to the effects of any of the first to fifth aspects, the transparent synthetic resin layer made of a thermoplastic resin is provided between the pattern layer and the cured coating film. It is possible to provide a decorative material for floors having high wear resistance. According to the eighth invention, in addition to the effects of the sixth or seventh invention, since the surface of the transparent protective resin layer has irregularities, there is also a change in appearance, and even when viewed physically, There is an advantage that danger during walking can be reduced by preventing slippage. According to the ninth invention, the first to first aspects
In addition to the effects of the seventh aspect, the backing layer is provided on the lower surface, so that the adhesiveness and dimensional stability during construction can be improved. Also, when the backing layer is made of a very thin film with high tensile strength, such as a polyester resin film, when winding a long decorative floor material, the drawbacks such as bending and cracking may occur. There is an advantage that can be suppressed. According to the tenth aspect, the first to ninth aspects
In addition to the effects of any of the inventions, the cushioning layer 3 has excellent dimensional stability, and the cushioning layer containing bamboo powder has an antibacterial effect and a fungicidal effect, and thus has antibacterial properties and fungicidal properties. A floor decorative material can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a basic configuration of a floor decorative material.

FIG. 2 is a cross-sectional view showing a configuration with a colored layer.

FIG. 3 is a cross-sectional view showing a configuration with a reinforcing layer.

FIG. 4 is a cross-sectional view showing a configuration including a reinforcing layer or a transparent resin layer and a coloring layer.

FIG. 5 is a cross-sectional view showing a configuration of a floor decorative material having a reinforcing layer and a coloring layer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor decorative material 2 Backing layer 3 Cushioning layer 4 Pattern layer 5 Transparent resin protective layer 6 Unevenness 7 Coloring layer 8 Reinforcement layer

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference) 4F100 AK01C AK03A AK04 AK07 AK07E AK42E AK51 AK68E AN01A AN02A AN02E BA04 BA05 BA07 BA10A BA10C BA10E CA23A DD01C DG01A DG03A DG15E DJ01A EH23 EBBJJE12HJB12 YY00A

Claims (10)

[Claims] 1. A transparent resin protective layer in which a pattern layer and a curable resin are cured on a polyolefin resin or / and rubber layer, a foam layer composed of these materials, or a cushioning layer composed of a latex-impregnated fibrous sheet. Are laminated in this order. 2. The decorative material for floors according to claim 1, wherein a pattern layer is laminated on the cushioning layer via a coloring layer. 3. The floor decorative material according to claim 1, wherein a pattern layer is laminated on the cushioning layer via a reinforcing layer. 4. The floor decorative material according to claim 1, wherein a pattern layer is laminated on the cushioning layer via a reinforcing layer and a coloring layer. 5. The floor decorative material according to claim 1, wherein a pattern layer is laminated on the cushioning layer via a reinforcing layer and a coloring layer. 6. The floor decorative material according to claim 1, wherein the transparent resin protective layer is formed by crosslinking and curing a thermosetting resin composition or an ionizing radiation-curable resin composition. 7. A transparent synthetic resin layer comprising a thermoplastic resin having a transparent resin protective layer provided on a pattern layer, and a cured coating film obtained by crosslinking and curing a thermosetting resin composition or an ionizing radiation-curable resin composition. 6. The method according to claim 1, wherein
The floor decorative material according to any one of the above. 8. The floor decorative material according to claim 6, wherein the surface of the transparent resin protective layer has irregularities. 9. The floor decorative material according to claim 1, wherein a backing layer is laminated on a lower surface of the cushioning layer. 10. The cushioning layer is made of an inorganic filler 0.1.
The floor decorative material according to any one of claims 1 to 9, further comprising 0.1 to 40%, or 0.1 to 40% of an organic filler composed of natural fibers of wood flour or bamboo flour.