JP2023002734A - Floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor material which is excellent in a fouling-proof and contamination removal capacity and a skid-proof capacity as well.

SOLUTION: In the floor material having a floor material body including a resin layer, and a surface protection layer on the floor material body, the surface protection layer comprises a hardening product of an ionization radiation hardening resin composition and the ionization radiation hardening resin composition comprises at least one type selected from an ionization radiation hardening silicone modified urethane (meth) acrylate resin and an ionization radiation hardening fluorine modified urethane (meth) acrylate resin, and skid-proof capacity particles.

SELECTED DRAWING: None

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to flooring.

Conventionally, various floor materials have been widely used. In particular, floor materials containing a resin layer are easily damaged and soiled when stepped on by the soles of feet or shoes. For this reason, scratch resistance and antifouling properties are required as characteristics of flooring materials including a resin layer. Scratch resistance refers to the resistance to scratching on the surface of the flooring material, and stain resistance refers to the resistance to staining or the ability to easily remove stains.
each mean. Ionizing radiation-curable resins have excellent scratch resistance properties, and are therefore used to coat various substrates, such as floor coatings.

For example, in Patent Document 1, on a substrate sheet made of a non-chlorine thermoplastic resin, one or more layers of a non-chlorine thermoplastic resin are formed via a pattern printed layer, and the surface thereof is an electron beam. Alternatively, a floor sheet characterized by being provided with a transparent resin layer having repaintability with an ultraviolet curable resin has been disclosed, and the impartation of abrasion resistance and durability, etc. is being studied.

Further, in Patent Document 2, (A) a photocurable (meth)acrylate resin, (B) a photocurable polysiloxane-based urethane (meth)acrylate resin, (C) a photocurable silicone block (meth)acrylate A photocurable (meth)acrylate resin composition having excellent decontamination properties is disclosed, which comprises a resin and (D) a photopolymerization initiator.

JP-A-2003-13587 Japanese Patent No. 3945628

However, the floor sheet of Patent Document 1 does not have sufficient antifouling properties and decontamination properties, and further improvements are required. On the other hand, the photocurable resin composition of Patent Document 2,
Although it is said that the decontamination property is superior to conventional photocurable resin compositions, the photocurable resin composition of Patent Document 2 has high slidability and is not suitable for flooring applications that require anti-slip properties. Absent.

An object of the present invention is to provide a floor material that is excellent in antifouling properties and decontamination properties, as well as in slip resistance.

The present invention relates to a flooring material comprising a flooring material body including a resin layer, and a surface protective layer on the flooring material body, wherein the surface protective layer comprises a cured product of an ionizing radiation-curable resin composition, The ionizing radiation-curable resin composition contains at least one selected from ionizing radiation-curable silicon-modified urethane (meth)acrylate resins and ionizing radiation-curable fluorine-modified urethane (meth)acrylate resins, and anti-slip particles. Regarding flooring.

ADVANTAGE OF THE INVENTION According to this invention, while being excellent in antifouling property and decontamination property, a flooring material excellent in slip resistance can be provided.

It is a top view showing one embodiment of the flooring of the present invention. FIG. 2 is a cross-sectional view of the floor material of FIG. 1 cut in the thickness direction; It is a sectional view showing one embodiment of the flooring of the present invention. It is a coating image of anti-slip particles. It is a test result of antifouling property and decontamination property.

As a result of studying the above problems, the surface protective layer contains at least one selected from ionizing radiation-curable silicon-modified urethane (meth)acrylate resins and ionizing radiation-curable fluorine-modified urethane (meth)acrylate resins, and anti-slip particles. It was found that by using a cured product of an ionizing radiation curable resin composition containing, it is excellent in antifouling property, decontamination property, and antislip property.

The mechanism by which the flooring material of the present invention is excellent in antifouling property, decontamination property, and anti-slip property can be presumed as follows. In the flooring material of the present invention, at least one selected from ionizing radiation-curable silicon-modified urethane (meth)acrylate resins and ionizing radiation-curable fluorine-modified urethane (meth)acrylate resins is added to the ionizing radiation-curable resin composition having excellent antifouling properties. Due to the slidability and water/oil repellency of the functional groups of silicon and fluorine, it is difficult for contaminants to adhere to the surface of the ionizing radiation curable resin, and contaminants adhered can be easily removed.
In addition, with regard to anti-slip properties, fine unevenness is formed by the anti-slip particles on the surface of the surface protective layer, so that when a person steps on it, it sinks into the sole of the foot or the sole of the shoe, providing appropriate anti-slip properties. It is estimated to be. Since the resin containing silicon and fluorine is ionizing radiation-curable, the ionizing radiation-curable resin composition is integrally and firmly fixed to the surface of the anti-slip particles that form fine irregularities when the ionizing radiation-curable resin composition is cured. It will be done. In addition, since the ionizing radiation curable resin is the main component, the ionizing radiation curable resin composition adhered to the surface of the anti-slip particles and the surface of the anti-slip particles will not affect the soles of the feet or It becomes difficult to peel off on the sole. By this,
It is possible to prevent both the deterioration of the anti-slip properties due to the peeling of the surface of the anti-slip particles and the deterioration of the antifouling properties due to the peeling of the resin containing silicon and fluorine. In addition, unlike the case where a silicone and fluororesin composition such as silicone oil or fluororesin is mixed with an ionizing radiation curable resin, the anti-slip property does not deteriorate due to bleeding.

The flooring material of the present invention has a flooring material body and a surface protective layer on the flooring material body. In this specification, the upper side refers to the side farther from the floor surface when the floor material is laid on the floor surface, and is also referred to as the front side. In addition, the lower side refers to the side closer to the floor surface when the floor material is laid on the floor surface, and is also referred to as the back side.

FIG. 1 is a plan view showing one embodiment of the flooring material of the present invention, and FIG. 2 is an enlarged sectional view of the flooring material cut in the thickness direction. The floor material 1 in the illustrated example is formed in a long strip shape in a plan view. A long strip is a rectangular shape in which the length in one direction is sufficiently longer than the length in the other direction (the other direction is a direction perpendicular to the one direction). more than twice the length of the direction,
It is preferably four times or more. The long belt-shaped flooring 1 is usually wound into a roll for storage and transportation, and cut into a desired shape for use at a construction site. However, the flooring material of the present invention is not limited to a long belt shape, and may be formed in a sheet shape such as a square shape in plan view (not shown).

In the present invention, the floor material main body 2 is the main part that constitutes the strength and weight of the floor material.
In the present invention, the floor material body 2 includes a resin layer 22 containing a synthetic resin component.
As the floor material body 2, any material known in the art can be used as long as it includes a resin layer 22. For example, as shown in FIG. 23, cosmetic layer 2
4, a structure in which layers such as the surface layer 3 are arbitrarily combined.

The synthetic resin component of the resin layer 22 is not particularly limited, but a thermoplastic resin is preferable. Examples of thermoplastic resins include vinyl chloride resin, olefin resin, vinyl acetate resin,
Examples include acrylic resins, amide resins, ester resins, various elastomers, and rubbers. Vinyl chloride resins are preferred from the viewpoints of workability, flexibility, cost, and the like. The synthetic resin component may be used alone or in combination of two or more.

As the vinyl chloride resin, a paste vinyl chloride resin, a suspension vinyl chloride resin, or the like is used.

The paste vinyl chloride-based resin is, for example, a paste-like vinyl chloride-based resin obtained by an emulsion polymerization method, and the viscosity can be appropriately adjusted with a plasticizer. The paste vinyl chloride resin is a fine powder having a particle size of 0.1 to 10 μm (preferably 1 to 3 μm) consisting of a large number of fine particle aggregates. Preferably, the surface of the fine powder is coated with a surfactant. ing. The average degree of polymerization of the paste vinyl chloride resin is preferably about 1,000 to 2,000.

A suspension vinyl chloride resin is, for example, a vinyl chloride resin obtained by a suspension polymerization method. Suspension vinyl chloride resin preferably has a particle size of 20 μm to 100 μm
is a fine powder of The average degree of polymerization of the suspension vinyl chloride resin is 700 to 1500
about 700 to 1,100 is more preferable, and about 700 to 1,000 is even more preferable. However, the particle diameter is the median diameter (D ₅₀ ) in the volume-based particle size distribution
is.

Each vinyl chloride resin preferably has a K value of about 60 to 95, more preferably about 65 to 80.

The content of the synthetic resin component in the resin layer 22 is not particularly limited, but may be, for example, 5
It can be ~100% by mass

The resin layer 22 can optionally contain additives such as fillers, plasticizers, flame retardants, stabilizers, antioxidants, lubricants, colorants, and foaming agents.

The resin layer 22 may be non-foamed or foamed. When the resin layer 22 is foamed, the foaming ratio is preferably 1.05 times or more, more preferably 1.1 times or more, from the viewpoint of imparting good cushioning properties to the floor material, and prevents the resin layer 22 from becoming too soft. From the viewpoint, it is preferably 10 times or less, more preferably 5 times or less. That is, the foaming ratio of the resin layer 22 is from 1.05 to
Ten times is preferable, and 1.1 to 5 times is more preferable.

When there are a plurality of resin layers 22, the physical properties of the resin layers 22 (material, presence or absence of foaming, thickness, etc.) may be the same or different.

The base material layer 21 is the lowest layer of the floor material, and increases the adhesive strength with an adhesive (hereinafter referred to as a floor adhesive) that adheres the floor material to the floor surface when laying. This layer is intended to suppress warping of the material. The base material layer 21 is not particularly limited, but for example, nonwoven fabric,
Conventionally known sheet materials such as woven fabric, paper, and felt can be used. The material of the fibers constituting the non-woven fabric or woven fabric is not particularly limited, and examples thereof include synthetic resin fibers such as polyester and polyolefin; inorganic fibers such as glass and carbon; and natural fibers.

The shape-stabilizing layer 23 is a layer for suppressing dimensional changes of the floor material due to shrinkage and expansion over time. The surface protective layer 4 of the flooring 1 shrinks during curing and molding of the ionizing radiation-curable resin composition. Since the floor material 1 is made of resin, it tends to warp when it shrinks, unlike floor materials made of other materials such as wood, stone, and ceramics. Furthermore, in order to increase the antifouling property, it is desirable to coat the surface of the anti-slip particles 5 with the resin of the surface protective layer 4. In order to sufficiently cover the anti-slip particles 5, the layer thickness of the surface protective layer 4 is increased. There is a need to. FIG. 4 shows a coating image of anti-slip particles. Layer thickness T of the surface protective layer
When the thickness is increased, the surface protective layer 4 shrinks more when hardening, so that the floor material 1 is more likely to warp. If the floor material is warped, it may become difficult to lay it on the floor surface, and if the joint side surface is exposed, it may become difficult to walk, or the joint may become dirty. In order to prevent these problems, it is desirable to provide the shape stabilization layer 23 .

It is preferable to provide the shape stabilizing layer 23 at a position substantially in the center of the entire thickness of the flooring 1 . By providing the shape stabilizing layer 23 at this position, the dimensional stability of the flooring material 1 can be enhanced, and the end portions of the flooring material 1 can be prevented from warping. From the viewpoint of effectively suppressing warpage due to curing shrinkage of the surface protective layer 4, it is preferable to provide two or more shape stabilizing layers. FIG. 3 shows an embodiment having two or more shape stabilizing layers. In the example shown in FIG. 3, the shape stabilizing layer 23 is a first shape stabilizing layer 231
, and a second shape stabilizing layer 232. A first resin layer 221, a second resin layer 222 and a third resin layer 223 are laminated with the shape stabilizing layers 231 and 232 interposed therebetween. For example, the distance between the first shape stabilizing layer 231 and the second shape stabilizing layer 232 is 1.0 to 2.0 mm,
Preferably, it is 1.2 to 1.6 mm. In order to suppress warping of the floor material, the first shape stabilizing layer 231 is positioned slightly below the center of the entire thickness of the floor material, and the two layers of the second shape stabilizing layer 232 It is preferably located above the center of the entire thickness.

Examples of the shape-stabilizing layer 23 include non-woven fabrics and woven fabrics. The material of the fibers constituting the non-woven fabric or woven fabric is not particularly limited, but examples thereof include synthetic resin fibers, inorganic fibers, and natural fibers. Examples of synthetic resin fibers include polyester and polyolefin, examples of inorganic fibers include glass and carbon, and examples of natural fibers include pulp. From the viewpoint of dimensional stability, a glass sheet containing glass fiber is preferably used. Examples of the glass sheet include glass fiber nonwoven fabric such as glass mat, or
A glass fiber woven fabric such as glass cloth is preferred. The fiber material may be used singly or in combination of two or more such as a mixture of glass fiber and pulp. The basis weight of the non-woven fabric or woven fabric is not particularly limited, but from the viewpoint of improving the dimensional stability of the floor material, it is 10
g/m ² or more is preferable, 20 g/m ² or more is more preferable, and from the viewpoint of ensuring appropriate flexibility and processability, 100 g/m ² or less is preferable, and 50 g/m ² or less is more preferable. That is, the basis weight of the non-woven fabric or woven fabric is preferably 10-100 g/m ^{2 , more preferably 20-50 g/m 2 .}

In the glass fiber nonwoven fabric, a plurality of glass fibers are randomly stacked or entangled in the vertical direction (thickness direction) and bound with a binder such as an adhesive or bound by themselves to form a layer. Alternatively, a plurality of glass fibers are stacked or entangled in the vertical direction with a certain degree of regularity and are bound with a binder such as an adhesive or are bound by themselves to form a layer. .

As the binder, a binder having high bondability to glass fibers is preferable, and a binder having high bondability to glass fibers and a bonding resin to be described later is more preferable. Such binders include, for example, one-component adhesives, two-component adhesives, thermosetting adhesives, hot melt adhesives, and electron beam curing adhesives such as ultraviolet curing adhesives. . Specific examples include one or a mixture of two or more selected from urethane resins, vinyl acetate resins, styrene-butadiene copolymer resins, acrylic resins, vinyl chloride resins and epoxy resins. The thickness of the glass fiber is, for example, 5 μm to 30 μm in diameter, preferably 8 μm in diameter.
˜20 μm and the length is, for example, 10 mm to 30 mm.

The basis weight of the glass sheet is not particularly limited, but preferably 10 g/m ² to 10 g/m 2
0 g/m ² , more preferably 20 g/m ² to 50 g/m ² . If the thickness or basis weight of the glass sheet is too small, the tensile strength and dimensional stability of the flooring material 1 cannot be sufficiently improved. There is Although the density of the glass sheet is not particularly limited, for example, 0.1 g/cm
³ to 0.5 g/cm ³ .

Glass sheets such as the non-woven and woven glass fiber fabrics have numerous openings between the glass fibers. Conceptually, each opening is formed by continuously connecting gaps between adjacent glass fibers in the thickness direction of the glass sheet.

Since the glass sheet has a myriad of openings, a ventilation path is secured in the plane of the glass sheet to lead from the surface side to the back side of the glass sheet. When the aperture ratio of the glass sheet is large, the glass sheet has high air permeability, and conversely, when the aperture ratio is small, the glass sheet has low air permeability. In this specification, considering such points, the aperture ratio is evaluated by measuring the air permeability of the glass sheet. The aperture ratio refers to the total aperture area per unit area of the surface of the glass sheet.

In order to improve bondability, it is preferable to use a glass sheet with high air permeability, that is, a glass sheet with a relatively large aperture ratio. On the other hand, in order to give the flooring material 1 the strength and dimensional change suppressing effect of the glass sheet, there is a certain upper limit to the aperture ratio of the glass sheet. From this point of view, the air permeability of the glass sheet is preferably 100 ml/c
m ² ·sec to 550 ml/cm ² ·sec, more preferably 200 ml/cm ²
・sec to 450 ml/cm ²・sec.

In addition, the air permeability of the glass sheet is measured using a Frazier air permeability tester manufactured by Toyo Seiki Seisakusho Co., Ltd. in accordance with the air permeability test method of JIS L 1096. The state in which three glass sheets to be measured are stacked. is a value measured in The reason for measuring with three sheets stacked is that, in the case of a glass sheet with a suitable aperture ratio, the air permeability is too high. This is because it may be difficult to measure

In addition, when a so-called “glass sheet with resin” in which a bonding resin is attached to the glass sheet is used as the shape stabilizing layer 23, the layers adjacent to the back surface and the front surface are separated through the bonding resin of the glass sheet. It is preferable because it can be strongly bonded. The bonding resin is
It may be attached to the entire surface of the glass fibers, or it may be attached to the entire surface of many glass fibers and attached to a portion of the surface of the remaining glass fibers. Also, the bonding resin may be uniformly adhered to the surface of the glass fiber, or may be adhered non-uniformly.

The preferable range of the air permeability of the resin ^- coated glass sheet is smaller ^than that of the glass sheet without the resin. It is preferable to set the flow rate to be in the range of ² ·sec to 400 ml/cm ² ·sec.

The bonding resin for the resin-coated glass sheet is not particularly limited as long as it bonds to both the glass fiber and the resin layer in contact with the glass fiber, and conventionally known resins can be used. Specifically, it is desirable to use the same type of resin as the resin layer in contact with the glass fiber, and when the resin layer in contact with the glass fiber contains a vinyl chloride resin as the main component resin, it preferably contains a vinyl chloride resin. .

The thickness of the shape stabilizing layer 23 is not particularly limited, but is preferably 0.1 mm or more from the viewpoint of suppressing warping of the floor material and improving dimensional stability. It is preferably 1.0 mm or less, more preferably 0.8 mm or less, and even more preferably 0.7 mm or less, from the viewpoint of preventing the amount of the resin component contained in the flooring material from decreasing. That is, the thickness of the shape-stabilizing layer is preferably 0.1 to 1.0 mm, more preferably 0.1 to 0.8 mm, even more preferably 0.1 to 0.7 mm. When the shape stabilizing layer 23 is a resin-coated glass sheet, the thickness is not limited to this, and can be, for example, 0.4 to 1.0 mm.

As described above, the layer thickness T of the surface protective layer 4 must be sufficient to cover the anti-slip particles 5 . However, as the layer thickness T of the surface protective layer 4 increases, the contractile force of the surface protective layer 4 increases, so that the flooring 1 tends to warp. In particular, if the particle diameter of the anti-slip particles 5 is increased in order to provide a floor material with excellent anti-slip properties, the layer thickness T of the surface protective layer 4 must be increased, so the floor material 1 is more likely to warp. By configuring the shape stabilizing layer 23 of the flooring material 1 as described above, the layer thickness T of the surface protective layer 4 of the present invention is set to a sufficient layer thickness to cover the anti-slip particles. However, it is possible to suppress the warp of the floor material 1 and maintain the flatness. In general, in the case of ordinary flooring that is constructed with an adhesive, the flooring is fixed to the floor surface with an adhesive, so warping of the flooring can be suppressed. However, in the case of simple laying floor materials that are constructed with adhesive,
Since it is difficult to suppress the warp of the floor material with an adhesive, if the end portion warps upward after laying, the aesthetic appearance is impaired, and the joints become uneven, causing dirt to accumulate and degrade the antifouling property. Since the floor material 1 having the shape stabilizing layer 23 can suppress warpage, it can be suitably used not only as a floor material that is applied with a normal adhesive, but also as a simple laying floor material.

The decorative layer 24 is a layer for imparting a design to the flooring 1 . The decorative layer 24 is the floor material main body 2
is preferably provided on the front side of the The decorative layer 24 is not particularly limited as long as it imparts a design property, but for example, it is formed of a thermoplastic resin, etc., and has a design printed on its surface, or is colored. is preferred. Examples of thermoplastic resins include vinyl chloride resins, olefin resins, vinyl acetate resins, acrylic resins, amide resins, ester resins, various elastomers, and rubbers.

The surface layer 3 is a layer that imparts durability, abrasion resistance, scratch resistance, and the like to the flooring material 1 . The surface layer 3 serves to prevent wear of the floor material body 2 when the surface protective layer 4 wears, and to make the surface protective layer 4 difficult to peel off. The surface layer 3 is not particularly limited, but is formed of, for example, a thermoplastic resin and a plasticizer. Examples of the thermoplastic resin include vinyl chloride resin,
Examples include olefin resins, vinyl acetate resins, acrylic resins, amide resins, ester resins, various elastomers, and rubbers. Vinyl chloride resins are preferred from the viewpoints of flexibility, workability, durability, and cost. As the vinyl chloride resin, a paste vinyl chloride resin, a suspension vinyl chloride resin, or the like is used. Thermoplastic resins may be used alone or in combination of two or more. As the plasticizer, a benzoic acid ester plasticizer, a phthalic acid ester plasticizer, or the like is used. Plasticizers may be used alone or in combination of two or more.

The surface protective layer 4 is a layer located on the frontmost side of the flooring material 1 and protects the flooring material body 2 . The surface protective layer 4 may be transparent or opaque, but is preferably transparent so that the design of the decorative layer 24 provided on the back side of the surface protective layer 4 can be seen. The thickness of the surface protective layer 4 is preferably 2 to 50 μm, more preferably 5 to 35 μm, because the surface protective layer 4 exhibits scratch resistance, does not become brittle as a whole, and has excellent impact resistance. is more preferable. In particular, when the layer thickness is 3 μm or more, sufficient scratch resistance can be obtained, and when the layer thickness is 35 μm or less, the rigidity of the flooring material as a whole does not become too high, it is hard to crack, and workability is easy.

In the present invention, the surface protective layer 4 contains a cured product of an ionizing radiation-curable resin composition, and the ionizing radiation-curable resin composition comprises an ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and an ionizing radiation-curable It contains at least one selected from fluorine-modified urethane (meth)acrylate resins and anti-slip particles.

The ionizing radiation curable resin used in the surface protective layer 4 of the present invention has energy quanta capable of cross-linking and polymerizing monomers in charged particle beams or electromagnetic waves. It refers to a resin crosslinked and cured by , and can be obtained by irradiating an ionizing radiation-curable resin composition with an electron beam or light by a known method. An ionizing radiation-curable resin is, for example, a resin obtained by curing a curable monomer or oligomer by ionizing radiation. The curable monomer or oligomer is not particularly limited as long as it can be cured by ionizing radiation. , conventionally known monofunctional monomers, bifunctional monomers, and trifunctional or higher polyfunctional monomers suitable for coating can be used singly or in combination of two or more. As the curable oligomer, bisphenol A-type, novolac-type, and polybutadiene-type epoxy (meth)acrylates suitable for coating and having properties such as hardness, gloss, and stain resistance required for the surface protective layer 4, 1 Oligomer such as polyether type urethane (meth) acrylate
The seeds can be used alone or in combination of two or more. It is preferable to use a curable monomer or oligomer that is cured by ultraviolet rays, because it can form a relatively strong surface protective layer 4 and is versatile.

Curable monomers or oligomers include (meth)acrylate groups, (meth)
A monomer or oligomer having a polymerizable unsaturated bond group such as an acryloyloxy group or an epoxy group can be used.

Specific examples of the curable monomer include styrenic monomers such as α-methylstyrene,
Methyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol penta(meth)acrylate, urethane(meth)acrylate, two or more thiol groups in the molecule and polyol compounds having Specific examples of the curable oligomer include urethane (meth)
Monofunctional ( meth)acrylates or polyfunctional (meth)acrylates, unsaturated polyesters, epoxies, and the like.

Among these, urethane can form a floor material 1 that has moderate flexibility and is excellent in heat resistance, chemical resistance, and durability, and has excellent adhesion to the floor material body 2. (Meth)acrylates are preferably used.

Although the molecular weight of the curable monomer or oligomer is not particularly limited, for example, 200
Within the range of up to 10000.

The ionizing radiation-curable resin composition used in the present invention is selected from ionizing radiation-curable silicon-modified urethane (meth)acrylate resins and ionizing radiation-curable fluorine-modified urethane (meth)acrylate resins polymerized. and anti-slip particles, and if necessary, other components. Other components include an ionizing radiation curable resin not modified with silicon, an ionizing radiation curable resin not modified with fluorine, a polymerization initiator, and various other additives. As the resin that is cured by ionizing radiation, it is preferable to use a photocurable resin, and it is more preferable to use an ultraviolet curable resin, because of its good workability and versatility.

For example, when using a mixture of ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and non-silicon-modified ionizing radiation-curable resin, select photo-curing resin or UV-curing resin for both. Therefore, it is preferable because it is excellent in workability at the time of manufacturing. The same applies when an ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin and a non-fluorine-modified ionizing radiation-curable resin are used in combination.

Ionizing radiation-curable silicone-modified urethane (meth)acrylate resin is silicone-modified, so it does not bleed out and can be firmly bonded to anti-slip particles, suppressing peeling after curing, and can be used as a flooring material. Excellent durability.

The ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and the ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin may contain one or more, preferably two or more, functional groups that can be used in the curing reaction. can be done. In particular, it may be a polyfunctional (meth)acrylate having two or more functionalities. The polyfunctional (meth)acrylates may contain epoxy groups, hydroxy groups, amino groups, sulfonic acid groups or isocyanate groups.

The combined content of the ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and the curable resin obtained by polymerizing the ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin is 0.1 mass in the ionizing radiation-curable resin composition. % to 5% by mass is preferred, and 0.3% to 3% by mass
% by mass is more preferred. If it is 0.1% by mass or more, the antifouling property can be secured, and if it is 0.1% by weight or less, the anti-slip property of the floor material is not impaired.

As the polymerizable monomer for the ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin and the ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin, a (meth)acrylate monomer having a radically polymerizable unsaturated group in the molecule is It is preferable to use a monomer because it has good polymerizability.

The ionizing radiation-curable silicon-modified urethane (meth)acrylate resin is one of ionizing radiation-curable silicon-modified urethane (meth)acrylate resins made of polysiloxane and having (meth)acryl groups introduced at one or both terminals. The ionizing radiation-curable silicon-modified urethane (meth)acrylate resin is, for example, an ionizing radiation-curable polysiloxane-based urethane (meth)acrylate resin, in which the functional group in the polysiloxane and the functional group in the urethane (meth)acrylate resin are It refers to chemically reacted and bonded substances. The (meth)acrylic group preferably has 1 to 6, depending on the bonding position of the substituted organic group, side chain type,
Although it is roughly classified into double-end type, single-end type, and side chain double-end type, there is no particular limitation on the bonding position of the organic group.

As the silicon-modified urethane (meth)acrylate resin used in the present invention, an ionizing radiation-curable polysiloxane-based urethane (meth)acrylate resin is suitable, and one or more polydialkylsiloxane-based urethane (meth)acrylates are used. can be used. Polydimethylsiloxane-based urethane (meth)acrylate is preferred,
For example, it is synthesized by reacting isocyanates, silicone polyols and hydroxyalkyl (meth)acrylates, and acryloyl groups (
CH ₂ ═CH—CO—) or a methacryloyl group (CH ₂ ═C(CH ₃ )—CO—),
It has a urethane bond (--NH--COO--) and a polydialkylsiloxane bond, preferably a polydimethylsiloxane bond (--(--Si(CH ₃ ) ₂ --O--)n--). These can be synthesized by known methods. In the present invention, "(meth)acrylate" is
A generic term for acrylates and methacrylates.

On the other hand, the fluorine-modified (meth)acrylate used in the present invention can be produced by reacting a compound having a perfluoro group with (meth)acrylate. For example, the curable fluorine-based compound includes a perfluoro group such as a perfluoropolyol, a perfluoropolyether polyol, a perfluoropolyether dibasic acid having a carboxylic acid, and a perfluoropolyether epoxy compound having an epoxy group. A polyfunctional (meth) acrylate such as a modified (meth) acrylate having a carboxylic acid, a (meth) acrylate having an epoxy group, and a (meth) acrylate having an isocyanate group. (meth)acrylates, 2-(perfluorodecyl)ethyl (meth)acrylate, 3-perfluorooctyl-2-hydroxypropyl (meth)acrylate, 3-(perfluoro-9-methyldecyl)-1,2- Oligomers or prepolymers such as epoxypropane, 2,2,2-trifluoroethyl (meth)acrylate, and 2-trifluoromethyl (meth)acrylate can be included.

The ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and the ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin used in the present invention are simultaneously cured and integrated when the ionizing radiation-curable resin composition is cured. to form a photocurable resin layer having a high surface hardness. Therefore, a good and durable antifouling surface can be obtained without bleeding out silicon or fluorine on the surface. Furthermore, since these modified urethane (meth)acrylate resins have urethane bonds in their molecules, they have moderate toughness due to hydrogen bonds and are excellent in bending resistance necessary for floor materials.
In addition, the surface of the surface protective layer 4 of the present invention can be given lubricity to improve scratch resistance and the like. At the same time, there arises a problem that it becomes slippery.

Conventionally known ionizing radiation curable resins that are not modified with silicon and ionizing radiation curable resins that are not modified with fluorine can be used. These ionizing radiation curable resins contain electron radiation curable resins that are formed by polymerizing at least one of monomers and oligomers that are cured by ionizing radiation, and if necessary, other components. It's okay.

Examples of ionizing radiation-curable monomers or oligomers include monomers or oligomers having a polymerizable unsaturated bond group such as a (meth)acrylate group or a (meth)acryloyloxy group, an epoxy group, or the like in the molecule. . Specific examples of ionizing radiation-curable monomers include styrene-based monomers such as α-methylstyrene, methyl (meth)acrylate, (meth)
Examples include 2-ethylhexyl acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol penta(meth)acrylate, urethane(meth)acrylate, and polyol compounds having two or more thiol groups in the molecule. Specific examples of ionizing radiation-curable oligomers include acrylates such as urethane (meth)acrylates, polyester (meth)acrylates, and epoxy (meth)acrylates; unsaturated polyesters; and epoxies. These ionizing radiation-curable monomers or oligomers can be used alone, or two or more of them can be used in combination. It is preferable to use a curable monomer or oligomer that is cured by ultraviolet light because it is versatile and has excellent workability.

In particular, as the ionizing radiation-curable monomer or oligomer, a monomer or oligomer having a (meth)acrylate group in the molecule is preferably used, and urethane (meth)acrylate is more preferably used.

Although the molecular weight of the ionizing radiation-curable monomer or oligomer is not particularly limited, it is preferably in the range of 200 to 10,000, for example.

Ionizing radiation curable monomers or oligomers are usually used with the addition of polymerization initiators. Examples of polymerization initiators include 2,2-dimethoxy-2-phenylacetophenone, acetophenone, benzophenone, xanthone, 3-methylacetophenone, 4-chlorobenzophenone, 4,4′-dimethoxybenzophenone, benzoinpropyl ether, and benzyldimethylketal. , N,N,N',N'-tetramethyl-4,4'-diaminobenzophenone, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1-one, other thioxanth compounds, etc. is mentioned.

The anti-slip particles 5 are particles that impart anti-slip properties to the surface protective layer 4 . By blending in the surface protective layer 4 , fine irregularities are generated on the surface of the surface protective layer 4 and run on the surface protective layer 4 . The soles of your feet become slippery. As the anti-slip particles 5, for example, one or two or more inorganic particles can be used. Examples of inorganic particles include powders such as silica, alumina, glass, calcium carbonate, barium sulfate, zirconium oxide, silicon nitride, silicon carbide, zeolite, shirasu balloon, diatomaceous earth, silicon dioxide, and diamond. Alumina is preferred from the viewpoint of In the flooring material 1 of the present invention, the surface protective layer 4 preferably does not contain photocatalyst particles. The photocatalyst particles are particles which are composed of titanium oxide, zinc oxide, tin oxide, iron oxide, copper oxide, etc., and which generate active oxygen such as hydrogen peroxide and hydroxyl radicals. The flooring material 1 of the present invention is oxidized and
It is decomposed and the durability is lowered, the anti-slip particles 5 are easily peeled off from the surface protective layer 4, and the antifouling property,
The anti-slip property tends to decrease. Therefore, the content of the photocatalyst particles in the ionizing radiation-curable resin composition is preferably 4% by mass or less, more preferably 3% by mass or less.

The shape of the anti-slip particles 5 includes spherical shapes such as ellipsoids and spheres, polygonal shapes, scaly shapes, and irregular shapes. preferred from The average particle size of the anti-slip particles 5 is preferably 2 μm to 100 μm, more preferably 5 μm.
~80 μm, more preferably 15 μm to 60 μm. From the viewpoint of imparting anti-slip properties but not inhibiting antifouling properties, the ratio of the average particle diameter of the anti-slip particles 5 to the thickness of the surface protective layer 4 (
Particle diameter μm/thickness μm) is preferably 0.1 to 10, more preferably 0.5 to 5
and more preferably 0.8 to 3. The average particle size of the anti-slip particles 5 in this specification refers to that measured by particle size distribution measurement using a laser beam diffraction method. As a result, fine unevenness is formed on the surface of the surface protective layer 4, and both antifouling properties and anti-slip properties can be achieved.

Moreover, as shown in FIG. 4, the anti-slip particles 5 are preferably embedded in the surface protective layer 4 from the viewpoint of antifouling properties. It is preferable that a covering portion 5a covered with a thin protective layer 4 is formed. If the anti-slip particles 5 are exposed from the surface protective layer 4, stains easily adhere to the exposed portions, resulting in deterioration of anti-staining properties. For example, the thickness of the covering portion 5a is 1 μm to 10 μm, preferably 4 to 8 μm.
μm. If the thickness of the covering portion 5a is less than the lower limit, the covering portion 5a is likely to come off.

From the viewpoint of workability such as viscosity, the content of the anti-slip particles 5 in the ionizing radiation-curable resin composition is
It is preferably 5 to 60% by mass, more preferably 10 to 45% by mass, still more preferably 12 to 30% by mass. The content of the anti-slip particles 5 refers to the total amount when two or more kinds of the anti-slip particles 5 are used.

An ionizing radiation polymerization initiator is preferably added to the ionizing radiation curable resin composition. Examples of ionizing radiation polymerization initiators include benzoin-based ionizing radiation polymerization initiators, acetophenone-based ionizing radiation polymerization initiators, benzophenone-based ionizing radiation polymerization initiators, and thioxanthone-based ionizing radiation polymerization initiators.

Benzoin ionizing radiation polymerization initiators include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether.

As an acetophenone-based ionizing radiation polymerization initiator, benzyl dimethyl ketal (also known as
2,2-dimethoxy-2-phenylacetophenone), diethoxyacetophenone, 4-phenoxydichloroacetophenone, 4-t-butyl-dichloroacetophenone, 4-t-butyl-trichloroacetophenone, 2-hydroxy-2-methyl-1- Phenylpropan-1-one, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1-one, 1-(4-dodecylphenyl)-2-hydroxy-2-methylpropan-1-one , 4-(2-hydroxyethoxy)-phenyl(2-hydroxy-2-propyl)ketone, 1-hydroxycyclohexylphenylketone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropane-1 benzyl dimethyl ketal and 1-hydroxycyclohexyl phenyl ketone are preferably used.

Benzophenone-based ionizing radiation polymerization initiators include benzophenone, benzoylbenzoic acid, methyl benzoylbenzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylated benzophenone, 4-benzoyl-4'-methyldiphenylsulfide, 3,3'-
dimethyl-4-methoxybenzophenone and the like.

Thioxanthone-based ionizing radiation polymerization initiators include thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, 2,4-dimethylthioxanthone, isopropylthioxanthone, 2,4-dichlorothioxanthone, 2, 4-diethylthioxanthone, 2,4-diisopropylthioxanthone and the like.

The amount of the ionizing radiation polymerization initiator is 0.00 per 100 parts by mass of the entire ionizing radiation-curable resin composition.
It is used in a proportion of 1 to 10 parts by mass, preferably 1 to 8 parts by mass, more preferably 2 to 6 parts by mass.

In addition, the ionizing radiation curable resin composition may optionally contain additives within a range that does not impair the object of the present invention. Fine particles, fillers, dispersants, plasticizers, UV absorbers, surfactants, antioxidants, thixotropic agents, polymerization inhibitors, reactive diluents, non-reactive diluents, matting agents, antifoaming agents, Anti-settling agents, heat stabilizers, (meth)acrylate monomers, compositions containing curable resins, and the like.

Examples of solvents include alcohols, ketones, esters, ethers, glycols, cellosolves, aliphatic hydrocarbons, aromatic hydrocarbons and the like. A solvent may be used individually and may use 2 or more types.

Specific examples of (meth)acrylate-based monomers used as necessary in the present invention include esters of alkylene polyols or polyether polyols with a low polymerization rate and (meth)acrylic acid, and 1,4-butane. diol diacrylate, 1,6-hexanediol diacrylate, neopentyl glycol diacrylate, 2(2-ethoxyethoxy)ethyl acrylate, tetrahydrofurfuryl acrylate, 2-phenoxyethyl acrylate, diethylene glycol diacrylate, tetraethylene glycol diacrylate, 1,3-butylene glycol diacrylate, tripropylene glycol diacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, neopentyl glycol hydroxypivalate diacrylate, and the like.

The ionizing radiation-curable resin composition of the present invention is applied onto the floor material body 2 of the floor material 1 using a coating machine such as a rubber or sponge roll coater, spray, or vacuum coater. A cured coating film (coating film) having excellent decontamination properties can be obtained by curing the coating film in a wet state, preferably by irradiating ultraviolet rays. The number of times of application of the ionizing radiation-curable resin composition of the present invention is not particularly limited, and may be once or twice or more.

Irradiation with ionizing radiation can be performed by a conventionally known irradiation method. For example 2
The coating film can be cured by electron beam irradiation under conditions of 00 kV and 3 to 10 Mrad. Moreover, the light for the light irradiation is ultraviolet rays or visible light, and the light irradiation can be performed by a conventionally known irradiation method. For example, a high-pressure mercury lamp has a power of 80 to 120 W/cm1 and a belt speed of 5 to 20 m/min. By increasing the number of lamps, the belt speed can be increased. Also, the belt speed can be increased by increasing the W/cm capacity.

The hardness of the surface protective layer 4 can be evaluated by the pencil hardness of the ionizing radiation-curable resin composition used for forming the surface protective layer 4 applied to a glass plate in a thickness of 25 μm and cured. , preferably 6B to 4H from the viewpoint of durability, scratch resistance, and impact resistance. The measurement of pencil hardness is evaluated according to the pencil hardness test (JIS K 5600-5-4).

The hardness of the surface protective layer 4 is achieved by appropriately designing the crosslink density of the ionizing radiation-curable resin composition, and it is preferable to set the crosslink density to achieve the above hardness.

The surface roughness of the surface protective layer 4 preferably has the following values of Ra, Ry, and Rpk from the viewpoint of having both anti-slip properties and antifouling properties. Ra is preferably 1.85-13, more preferably 1.9-8, still more preferably 1.9-5. Ry is preferably 9-70, more preferably 10-50, still more preferably 10-30. Rpk is preferably 2-30, more preferably 3-20, still more preferably 3.5-12. The surface roughness in this specification is JIS B0601-1994
It is calculated from what is measured by a surface roughness measuring machine according to When each value of Ra, Ry, and Rpk is at least the lower limit value, the antifouling property can be enhanced, and when the value is at or below the upper limit value, there is no uncomfortable feeling when walking, and the anti-slip property is good.

The surface protective layer 4 may be embossed from the viewpoint of imparting anti-slip properties. Embossing is performed to give the surface of the floor material 1 a desired uneven shape. For example, after the surface protective layer 4 is heated and softened, it is pressurized and shaped with an embossing plate having a desired uneven shape, and is cooled and fixed to impart a texture. Embossing can be carried out on a known sheet-fed or rotary embossing machine. The uneven shape of embossing is not particularly limited, and examples include wood grain conduit grooves, embossed patterns (uneven patterns of embossed annual rings), hairlines, sand grains, pear-skinned surfaces, and regular protrusions (not shown). Alternatively, there are those that are protruded in an irregular arrangement, and those in which irregular-shaped protrusions are protruded in an irregular arrangement. A non-slip pattern is preferable because it can uniformly exhibit anti-slip properties in any direction. The embossing depth is, for example, 0.01 to 0.5 mm, more preferably 0.05 mm to 0.3 mm, and still more preferably 0.1 mm to 0.2 mm, from the viewpoint of imparting anti-slip properties.
is preferred.

The surface protective layer 4 may be transparent or opaque, but is preferably transparent enough to allow the design of the floor material body 2 to be visually recognized.

The thickness T of the surface protective layer 4 is not particularly limited, but is preferably 5 to 150 μm, more preferably 10 to 70 μm, even more preferably 15 to 40 μm. In the present specification, the thickness of the surface protective layer does not include the thickness of the portion raised by the anti-slip particles 5 as shown in FIG.

[Preparation of ionizing radiation curable resin composition]
Examples 1-8
Ionizing radiation curable resin "UV No. 119LT-DX (manufactured by Chugoku Paint Co., Ltd.)" containing ionizing radiation curable silicon-modified urethane (meth)acrylate resin, and alumina listed in Tables 4 to 6 are listed in Tables 4 to 6. was added so as to have a mass ratio of , to prepare an ionizing radiation-curable resin composition.

Comparative example 1
Ionizing radiation-curable urethane (meth)acrylate resin “UV No. 146B (manufactured by Chugoku Paint Co., Ltd.)” that does not contain ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin was used as the ionizing radiation curable resin composition.

Reference example 1
Ionizing radiation-curable urethane (meth)acrylate resin “UV No. 118LT (manufactured by Chugoku Paint Co., Ltd.)” that does not contain ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin was used as the ionizing radiation curable resin composition.

Comparative example 2
It was prepared in the same manner as in Example 2 except that no alumina was added.

Reference example 2
Instead of ionizing radiation-curable resin "No. 119LT-DX (manufactured by Chugoku Paint Co., Ltd.)" containing ionizing radiation-curable silicon-modified urethane (meth)acrylate resin, ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and Prepared in the same manner as in Example 2 except that an ionizing radiation-curable urethane (meth)acrylate resin “U1102 (manufactured by Dainichiseika Co., Ltd.)” containing no ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin was used.

[Fabrication of flooring]
Examples 1, 2, 3, 4, 5, 8, Comparative Examples 1, 2, Reference Examples 1, 2
A floor material intermediate product excluding the surface protective layer from composition table 1 is produced by applying heat and pressure by a known method,
A mirror finish or embossing was applied to the surface of this intermediate flooring product. Here, pressing the mirror surface refers to pressing with a mirror-like flat plate or roll, and pressing emboss refers to pressing with a plate or roll in which unevenness is formed. Next, the ionizing radiation curable resin composition prepared as described above is applied to the surface layer of the intermediate flooring material by a natural roll coating method to a uniform thickness, and then immediately irradiated with ultraviolet rays in the air with an electroded ultraviolet lamp. Thus, a surface protective layer was formed. For Examples 2 to 5 and Comparative Example 2, two types of samples were produced, one having a mirror finish and the other having an embossed finish. The glass sheets used in Table 1 have a basis weight of 30 g/m ² and an air permeability of 299 ml/cm 2 .
² ·sec, and the embossing depth in the embossing finish was 0.1 mm. note that,
This air permeability is a value measured by stacking three glass sheets.

Example 6
A flooring material was produced in the same manner as in Example 8, except that Table 2 was used instead of Table 1.

Example 7
A flooring material was produced in the same manner as in Example 8, except that Table 3 was used instead of Table 1. The glass sheets used in Table 3 are the same as those used in Table 1.

<BHM test>
The floor materials of Example 1, Comparative Example 1, and Reference Example 1 were cut into rectangular shapes of length×width=18 cm×28 cm, and three samples were prepared for each. The surface of the three samples opposite to the surface protective layer was attached to the inner wall of a cubic hollow container of length×width×height=52 cm×52 cm×45 cm. In this hollow container, 6 pieces of cubic rubber pieces of length and width = 5 cm x 5 cm x 5 cm were placed, and this container was rotated clockwise for 15 minutes (rotation speed: 63 rpm), and then,
It was rotated counterclockwise for 15 minutes (rotation speed: 63 revolutions/minute). After the rotation was stopped, the sample was taken out, and the dirt on the surface was visually observed and photographed.
Next, wipe the surface of each sample dry with paper (dry wipe) and wet with water (water wipe), and the time required to finish wiping the dirt (wipe off anything that cannot be wiped off within 10 minutes. ), and the state of dirt after wiping was visually observed and photographed.
The antifouling property and decontamination property of the surface after cleaning were visually evaluated according to the following criteria. Table 4 shows the results. In addition, FIG. 5 shows the state of each example immediately after the test and after wiping.
◎: There is no heel mark ○: A heel mark is attached, but it can be wiped off in a short time with a paper or wet wipe △: A heel mark is attached, but it can be wiped off with a paper or wet wipe over time ×: Paper wipe・Slight heel marks remain even after wiping with water

<Slip resistance>
The flooring materials of Examples 2 to 5, Comparative Example 2, and Reference Example 2 were subjected to sensory evaluation of slipperiness with various types of shoes shown in Table 5. Based on the following criteria, the test results were averaged from the measurement results of 8 people. Table 5 shows the results. In addition, "dry" in the table refers to the anti-slip property of the sample in a dry state.
"Water" refers to anti-slip properties in a wet state in which water is evenly sprinkled over the sample surface.
1: Slippery
2: Slightly slippery 3: Slightly slippery 4: Not slippery 5: Not slippery

<Warp test>
Regarding the floor materials of Examples 6 to 8, the warp was measured using a floor material with dimensions of 450 mm×450 mm for Examples 6 and 7 and 500 mm×500 mm for Example 8. Measurement of warpage, 5 ° C.,
The warp at 23°C and 35°C was measured according to JIS A1454-14. Specifically, the sample was placed face up on a polished glass plate and allowed to stand in a temperature-controlled room (5, 23, 35±2°C, humidity 50±10%) for 24 hours. The sample was placed on a plate, and the gap between the four corners of the sample and the glass plate was measured using a loupe with a scale of 1/10 mm to measure the warp value, and the average value was taken as the warp value. In addition, the plus of the warp value is the value that the end warps upward (upward warp value),
Minus indicates a downward warp value of the end portion (warp value). Table 6 shows the results.

<Surface roughness>
For Examples 2 to 5, Comparative Example 2, and Reference Example 2, the surface roughness was measured under the following conditions using a surface roughness measuring machine (Surfcom 130A (manufactured by Tokyo Seimitsu Co., Ltd.)) according to JIS B0601-1994. bottom. Each value of Ra, Ry, and Rpk is obtained by calculating the values in the vertical direction and the horizontal direction of the sample, respectively, and calculating the average value. Further, the antifouling property and decontamination property were evaluated according to the same criteria as above. Table 7 shows the results. In Table 7, the sandals in a dry state are evaluated as ⊚ when exceeding 3.0, ∘ when between 2.5 and 3.0, and x when less than 2.5.
Measurement length: 12.5mm
Cutoff: 2.5mm
Measurement speed: 1.5mm/s
Measurement range: ±40 μm (some range over is ±400 μm)

From Example 1, Comparative Example 1, and Reference Example 1, it can be seen that when the surface protective layer contains the ionizing radiation-curable silicon-modified urethane (meth)acrylate resin, the antifouling property and the decontamination property are excellent. .

From Examples 2 to 5 and Comparative Example 2, it can be seen that when the surface protective layer contains anti-slip particles, the anti-slip properties are excellent.

It is preferable that the warpage of the floor material is moderately negative, but when Examples 6 to 8 were compared, Example 8, in which two glass sheets were included in the main body of the floor material, was particularly preferable.

From Table 7, Examples 2 to 5, which satisfy the ranges of Ra of 1.85 to 13, Ry of 9 to 70, and Rpk of 2 to 30, have antifouling and decontamination properties, anti-slip properties, and It can be seen that the balance of Among these, Example 3 was particularly preferable.

The present invention is not limited in any way by the embodiments and examples described above. Various embodiments can be adopted without departing from the gist of the present invention.

1 floor material 2 floor material body 21 base material layer 22 resin layer 221 first resin layer 222 second resin layer 223 third resin layer 23 shape stabilizing layer 231 first shape stabilizing layer 232 second shape stabilizing layer 24 makeup Layer 3 Surface layer 4 Surface protective layer 5 Anti-slip particles 5a Coating part T Thickness of surface protective layer

Claims (2)

A flooring material having a decorative layer containing vinyl chloride resin on a resin layer containing vinyl chloride resin and a surface layer containing vinyl chloride resin; and a flooring material having a surface protective layer on the flooring material body, The surface protective layer contains a cured product of an ionizing radiation-curable resin composition, and the ionizing radiation-curable resin composition comprises an ionizing radiation-curable silicon-modified urethane (meth)acrylate resin and an ionizing radiation-curable fluorine-modified urethane (meth)acrylate resin. ) a flooring material containing at least one selected from acrylate resins, the surface protective layer having a surface roughness Ry of 10 or more and less than 50, and the surface layer and the surface protective layer being transparent (however, a flooring material containing wood except for). 2. The flooring material according to claim 1, wherein the flooring material body includes a plurality of resin layers, and all of the resin layers include vinyl chloride resin.

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