JP6064335B2 - Laminate for floor surface - Google Patents

Description

  The present invention relates to a floor surface layer material formed by bonding to the surface of a member such as a base material using natural wood, plywood, laminated material, aluminum material, steel plate material, stone material, inorganic material, asphalt, concrete, etc. alone or in combination, and The present invention relates to a laminate for a floor material surface, which can be bonded to a floor surface or a floor surface member.

  Conventionally, as the above-mentioned use, a wood base material such as plywood is pasted with a natural wood veneer, or a paper or a synthetic resin sheet is pasted with decorative paper or a decorative sheet printed on the design. In addition, materials based on resin materials such as PVC tiles and PVC cushion floors are used. In such a member for floor surface, durability performance against various environments, antifouling property, antibacterial property, etc. are required as well as those used for wall surfaces and ceilings. Scratch resistance and anti-slip properties can be cited as performances that are characteristically required for what is used. Scratch resistance is included in the durability in various environments in a broad sense, but on the floor surface, various scratches such as scratches, push wounds, and stab wounds are caused by various external factors in the environment in which they are used. It may be attached. In addition, especially in the case of wood-based flooring such as plywood, consideration should be given to scratches caused by rubbing the front and back surfaces of the stacked flooring or the surfaces when they are transported. Is also needed. However, in general, considering the effect on the surface condition, most of the stacking methods are such that the surfaces come into contact with each other (hereinafter referred to as “stacking”). When the surfaces are slid finely due to vibrations at the surface, it is required to cope with the occurrence of scratches on the surface or the occurrence of powder spray.

  In woody base materials such as plywood, natural wood veneer laminated together is a natural material, so it is excellent in design, but has limited performance such as durability, antifouling and antibacterial properties. . Using PVC tiles and PVC cushion floors can provide durability, antifouling properties, antibacterial properties, etc. for various environments, but they are inferior to those with natural wood veneer or decorative sheets on design. . A laminate made of a wood base material such as plywood has a good balance between design and durability, and can also be given functions such as antifouling and antibacterial properties. There is a feature that flooring can be made just by sticking to. Therefore, in recent years, the amount of flooring using decorative sheets has been increasing.

  As described above, the number of flooring materials using decorative sheets has been gradually increased, but as a part of providing functionality, it is desired to provide anti-slip performance. This is because the anti-slip property, that is, the non-slip property, allows physically weak persons such as elderly people and children, and pets such as indoor dogs to live safely without slipping unexpectedly indoors. In order to impart anti-slip performance to a decorative sheet, a system in which anti-slip performance is imparted by adding resin beads in the surface protective layer has been studied (see Patent Document 1).

  The present inventor has conducted intensive studies in order to obtain verification experiments and further optimum conditions with reference to the contents described in Patent Document 1. As a result, it came to discover the further suitable conditions for providing surface performance (slipperiness, scratch resistance).

JP 2009-96179 A

  The subject of the present invention is a resin laminate that is laminated to a woody base material such as plywood and used on the floor surface. It is to set specifications for a laminate for a flooring material surface and a flooring material using the same so that high slip resistance can be obtained while ensuring scratch resistance on the surface of the body.

As a result of intensive studies to solve such problems, the present inventor has found that a resin laminate satisfying the following conditions solves the problems. That invention according to its first aspect, the surface of a flooring surface laminate having a surface protective layer for a main material of an acrylic resin, a laminated structure of the surface protective layer is 2 or more layers Yes, and only to the outermost layer contains a resin bead, the outermost layer of thickness H is in the range of 1μm or more 6μm or less, and the average particle size α of the resin beads, the outermost layer The laminate for a flooring surface is characterized in that H ≦ α ≦ 1.5H with respect to the thickness H of the flooring material.

The invention according to claim 2 is the laminate for a flooring surface according to claim 1 , wherein the resin beads are made of urethane material.

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The invention according to its third aspect, the outermost layer, it is flooring surface for laminate according to claim 1 or 2, characterized in that hollow glass based beads are added.

The invention according to claim 4 is the floor surface laminate according to any one of claims 1 to 3 , wherein olefin resin beads are added as a wax component to the outermost layer. is there.

The invention according to claim 5 is the laminate for a flooring surface according to claim 4 , wherein H ≦ h <α, where h is an average particle diameter of the olefin resin beads. is there.

The invention according to claim 6 is the laminate for flooring surfaces according to claims 1 to 5 , wherein the acrylic resin of the surface protective layer has a crosslinked structure.

  According to the first aspect of the present invention, it is possible to suppress the resin-based beads from falling off the surface protective layer when various external loads are applied. Moreover, since resin-based beads can be unevenly distributed in the outermost layer, a great effect can be obtained with a small amount of use. As a result, it is possible to provide anti-slip performance without greatly degrading the performance of the surface protective layer.

Further, if the particle diameter of the resin beads contained in the outermost layer or the outermost layer of the thickness, that resin beads become embedded in the surface protective layer can proof Gukoto, the resin beads particle diameter by setting the upper limit, it is also possible to suppress the dropping of resin beads.
However, the particle size of the resin beads is not uniform, there with some distribution, with respect to the average particle size, since those higher particle size present a certain number, a large portion among the particle size distribution for, in a state in which easily fall off from the relatively surface protective layer, which is ing the cause of such slip resistant reduced and gloss changes in the time over.
Therefore, the surface protective layer and the laminated structure of a plurality of layers, when adding only resin beads the outermost surface layer, thinning the outermost layer of the thickness, and extent of the outermost layer of thickness less 6μm than 1μm in particular doing, it is possible to select an average particle diameter of the resin-based beads is small. Average particle diameter is small no longer, the variation value defined like the standard deviation of its particle size distribution, because inevitably small, that Do is possible to further suppress the falling tree fat based beads.

Therefore, by defining the average particle diameter α of the resin-based beads within the range of H ≦ α ≦ 1.5H with respect to the thickness H of the outermost layer, it is possible to add a smaller amount. Anti-slip performance can be obtained effectively. Thus, without hardly changing the performance of the surface protective layer has, it is possible to impart non-slip performance.
Also, in addition to the effect of suppressing the dropping of the resin beads, the effect of increasing the contact surface area between the sliding piece can be expected. Thereby, by making an average particle diameter in the range of an upper limit, compared with the case where it is set as the average particle diameter exceeding an upper limit, higher slip prevention performance can be obtained.

The street of the invention of claim 2, wherein, by using those urethane material to resin beads, a moderate grip with urethane resin, it is possible to express a high anti-slip performance.

In addition, according to the invention of claim 3, by adding hollow glass-based beads to the outermost layer, for scratches (such as scratches due to steel wool) rubbing the surface layer of the laminate for flooring surface, it is possible to impart the scratch resistance. In addition, as in the present invention, even in a test in which the surfaces are rubbed together by forming a hollow shape (hereinafter abbreviated as “surface-to-surface sliding test”), the glass beads are gently plastically deformed, so that they are scratched. It becomes difficult. Moreover, in this invention, since the surface protective layer is multilayered and added only to the outermost layer, a sufficient effect can be obtained with a small amount of addition.

Further, as described in claim 4 , by adding olefin resin beads as a wax component to the outermost surface layer, by improving the slip property of the surface layer, both the anti-slip property and the slip property can be achieved at the same time. Can do. And even in the steel wool test and every one alignment sliding test, it is possible to impart high resistance.

In particular, according to the invention of claim 5 , the average particle diameter of the olefin resin beads is equal to or more than the thickness H of the outermost surface layer of the surface protective layer having a multilayer structure, and the average particle diameter of the resin beads By making it into the range of α or less, the anti-slip performance of the resin beads is not inhibited more than necessary.

Further, according to the invention of claim 6 , the acrylic resin of the surface protective layer has a cross-linked structure, so that the toughness is increased and the effect of improving the resistance to various scratches and the contamination property can be obtained. The effect of suppressing bleed-out of functional additives such as added UV absorbers and light stabilizers can also be obtained. With these effects, the initial performance can be maintained permanently.

It is explanatory drawing which shows the structure of the cross section of one Example of the laminated body for flooring surfaces of this invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows a cross-sectional structure of an embodiment of a laminate for a flooring surface according to the present invention. The surface layer has a surface protective layer 1 mainly composed of an acrylic resin, and the surface protective layer has a multilayer structure. In FIG. 1, a three-layer structure is formed from the outermost layer to the surface protective layer 1 (1), the surface protective layer 1 (2), and the surface protective layer 1 (3). . Further, as shown in FIG. 1, the laminate for a floor material surface is usually composed of a laminated structure of a surface protective layer 1, a transparent resin sheet layer 2, a pattern pattern layer 4, and an underlayer 5, but is not limited to this. Is not to be done. Resin-based beads 3 are added to the surface protective layer 1 (1).

  As an acrylic resin as a main raw material used for the surface protective layer 1 in the present invention, a thermoplastic acrylic resin may be laminated and provided, but a (meth) acrylate material may be cross-linked and cured with an isocyanate curing agent, Crosslinking and curing using ultraviolet irradiation, electron beam irradiation, or the like is preferable because a harder and tougher surface protective layer can be obtained. As the (meth) acrylate-based material, for example, when it is desired to impart appropriate flexibility and improve handling properties, a urethane (meth) acrylate material or the like is also preferably used. For example, in the case of crosslinking using an isocyanate curing agent, a hydroxyl group is added to the (meth) acrylate resin in order to react with isocyanate, and in the case of reaction using ultraviolet irradiation, a photopolymerization initiator is appropriately added. Is done.

  The molecular weight of the (meth) acrylate material is not particularly limited, and monomers, oligomers, prepolymers and the like can be arbitrarily selected. It is also possible to use a mixture of a plurality of these.

  Since the surface protective layer 1 is mainly made of an acrylic resin, the surface protective layer 1 has higher weather resistance than the original, but addition of an ultraviolet absorber and a radical scavenger is preferably used for imparting further performance. As organic UV absorbers, there are benzotriazoles, benzophenones, benzoates, hydroxyphenyltriazines, etc., as well as inorganic UV-blocking agents, organic UV Used as an additive that acts like an absorbent. As the radical scavenger, those having a specific structure among hindered phenols and hindered amines have an effect of detoxifying the growth of free radicals that are caused by photoexcitation and cause material deterioration. In particular, the hindered amine-based radical scavenger has the characteristics that the effect is large and the effect lasts for a long period of time. Therefore, by adding an appropriate amount, the weather resistance is not impaired without impairing the performance as the surface protective layer 1. Performance can be imparted. In addition, since an ultraviolet absorber has the characteristics in an absorption wavelength range etc. according to the structure, multiple types of combined use is also performed suitably and a synergistic effect can be anticipated sometimes. Similarly, radical scavengers are sometimes suitable for use in combination of a plurality of types.

  In particular, in the present invention, resin-based beads 3 to be described later are added to the surface protective layer 1 (1), and the resin over time due to external physical load, weather resistance deterioration, etc. in long-term use. There is a possibility that the system beads 3 will fall off. However, the addition of the organic and inorganic ultraviolet absorbers and the hindered amine and hindered phenol radical scavengers makes it possible to suppress deterioration over time, and accordingly the resin beads 3 It is also possible to suppress the dropout of the material over time.

  When the surface protective layer has a multilayer structure as in the present invention, the effect of the additive can be obtained more effectively by changing the formulation of the additive in each layer. The same applies to the case of the present invention, and the anti-slip performance can be imparted more effectively by adding resin-based beads only to the surface protective layer 1 (1) present in the outermost layer.

For example, considering that the surface protective layer 1 shown in FIG. 1 is not a laminated layer but a single layer, in order to effectively exhibit the anti-slip performance, the particle size of the resin beads Most of them need to be larger than the thickness of the surface protective layer. In that case, the resin-based beads having a large particle size that are not intentionally mixed due to the variation in the particle size are placed in a state in which they easily fall out of the surface protective layer. However, as in the present invention, when the surface protective layer has a multi-layered structure and resin beads are inserted only in the outermost layer, the average particle diameter of the outermost resin beads can be reduced. Therefore, it is possible to select beads having a small particle size variation. As a result, it is possible to suppress the dropout resulting from the excessively large resin beads.

  As materials other than resin-based beads, for example, the aforementioned ultraviolet absorbers may be effective when the formulation is changed in each layer. For example, by adding a grade having a high ultraviolet absorbing ability to the outermost layer at a concentration as high as possible, the ultraviolet ray cutting effect can be maximized. In addition, since an ultraviolet absorber that is not highly compatible with the main resin may precipitate due to bleed-out, it is possible to consider not using it as the outermost layer.

  The method for laminating the surface protective layer 1 is not limited in any way. For example, if the raw material is liquid, it may be laminated using a known coating method. However, for example, in a known gravure coating method including reverse coating, it may be difficult to efficiently transfer a large particle size to a printing substrate. In addition, improvement of the coated surface state with a smoothing bar or the like may scrape off the outermost resin beads. In addition, the use of known coating methods may be limited.

  The total thickness of the surface protective layer 1 is desirably 10 μm or more and 50 μm or less from the balance of weather resistance, flexibility (including ease of handling such as handling properties and wrapping suitability), and scratch resistance. . When the thickness is less than 10 μm, sufficient weather resistance and scratch resistance cannot be obtained, and when it exceeds 50 μm, flexibility is hindered.

  In the surface protective layer 1, various additives are appropriately added in order to further impart functionality. For example, antibacterial agents, antifouling agents, matting agents, anti-settling agents, waxes, antistatic agents, flame retardants, various pigments, various dyes, heat shields, organic fillers, inorganic fillers and the like are preferably used. Of course, when isocyanate crosslinking is selected as the crosslinking method of the surface protective layer 1, addition of a curing agent is essential, and when ultraviolet crosslinking is selected, addition of a photopolymerization initiator is essential. In addition, although a well-known thing may be used for an isocyanate hardening | curing agent, it is desirable to select suitably from the thing of a non-yellowing type or a non-yellowing type considering the use use.

  Various known materials can be used as the resin-based beads in the present invention. However, when a urethane-based material is selected, a high anti-slip performance can be exhibited due to the grip property derived from the urethane material. As a material other than the urethane material, a material having a low glass transition point, such as an olefin, is preferably used in order to impart anti-slip properties. On the other hand, when a so-called hard material having a high glass transition point such as an acrylic resin or a polyester resin is selected, a slip property due to the anchor effect may be expected instead of a grip property derived from the material.

  Some of the olefin resin beads have a function as a wax that improves the lubricity of the surface. The addition of an appropriate amount of this can improve the resistance to surface scratches, and therefore the addition is suitable. However, caution is necessary for excessive addition to cause a decrease in anti-slip properties, and it is appropriately determined in view of physical properties, cost, etc., but the range of about 0.1 to 10% by weight is appropriate. There are many.

  Also, various inorganic materials are preferably added for the purpose of reinforcing the hardness of the surface protective layer. In particular, when hollow glass beads are added, resistance to scratches is improved to make the surface hard, and further, cushioning properties are exerted against pressing wounds to make the surface harder, making it difficult to be damaged. .

The upper limit of the average particle diameter of the resin beads in the present invention is preferably 1.5 H or less with respect to the thickness H of the outermost layer. When the average particle diameter exceeds 1.5H, the anti-slip performance is not substantially changed, but the resin-based beads are likely to fall off, and it is somewhat difficult to maintain the anti-slip performance over time. Further, among the various coating methods for providing the surface protective layer 1, in the gravure coating method, which is one of the preferred methods, the result is that the spherical resin beads 3 are difficult to enter the gravure plate. Another problem is that it is difficult to transfer resin-based beads due to gravure coating. In order to avoid these problems, it is preferable that the average particle size is in the range of 1.5 H or less. In addition to these effects, the average particle size is desirably 1.5 H or less from the viewpoint of suppressing design deterioration due to irregular reflection on the surface. On the other hand, the lower limit of the average particle diameter is desirably H or more. In the case of an average particle size of H or less, since many resin beads are buried in the surface protective layer, it is difficult to effectively exhibit anti-slip performance.

  Hereinafter, the transparent resin sheet layer 2 corresponding to the adherend of the surface protective layer 1 will be described. In the present invention, the material of the transparent resin sheet is not particularly limited, but preferably has both weather resistance and scratch resistance in consideration of the intended use. Furthermore, it is more preferable that it has solvent resistance and chemical resistance, and it is still more preferable if the raw materials are economically available such as being inexpensive and stably available. From the viewpoint of environmental problems, those not using halogen elements such as chlorine are desirable. As a typical material having these conditions, a material based on a polyolefin material or a polyester material subjected to various weathering prescriptions is desirable. If the emphasis is placed on flammability (flame retardant) rather than the environmental impact of halogens, fluorine-based materials and vinyl chloride-based materials are also candidates (however, when vinyl chloride-based materials are used) Has only a limited effect on solvent resistance). In addition, when the weather resistance is regarded as the most important, acrylic materials are also candidates. However, in the comprehensive evaluation including the economy, it is desirable to use an olefin material, particularly a polypropylene material. So far, we have touched on the performance as a transparent resin sheet, but it is not always necessary to be transparent, it may be colored to give design or various functions, and may be translucent or opaque. .

  For the purpose of improving design properties or providing concealability, the application of the pattern layer 4 to the laminate comprising the surface protective layer 1 and the transparent resin sheet layer 2 is preferably used. When the surface protective layer 1 is provided on one side of the transparent resin sheet layer 2 and the pattern layer 4 is provided on the other side, the transparent resin sheet layer 2 has a protective layer role for the pattern layer 4. You can also. The material of the pattern layer 4 is not particularly limited, but a colorant such as a dye or pigment or an extender pigment is added to a binder such as acrylic, olefin, ester, urethane, and vinyl acetate. Further, those obtained by arbitrarily adding plasticizers, stabilizers, waxes, greases, drying agents, curing agents, thickeners, dispersants, fillers and the like are suitably used. Prepare a coating solution prepared by sufficiently kneading the above materials with a solvent, diluent, etc., and use a known printing method such as gravure printing, intaglio printing, flexographic printing, silk printing, electrostatic printing, inkjet printing, or spraying or brushing. It can provide by laminating | stacking by the well-known coating method using etc. A method of providing a primer coat layer (not shown) between the pattern pattern layer 4 and the transparent resin sheet layer 2 as needed is also suitably used.

  Further, in order to mitigate the influence of the concealability improvement and the unevenness (unevenness) of the base portion, a lamination of the base layer 5 is also preferably used as necessary.

  The laminate for the surface of the floor material produced in this way is bonded to a wood material, asphalt, concrete, metal material, inorganic material, etc., while maintaining a high design property, durability and anti-slip property. It is possible to provide a floor member that has both the scratchability of the surface of the resin laminate when it is transported in this state and the handling property. When wood, wood, asphalt, concrete, metal, inorganic materials, etc. have patterns, letters, designs, etc., the flooring laminate provides anti-slip properties, and at the same time, patterns, letters, It will play a role to protect the symbols and the like.

(1) Production of Transparent Resin Sheet Layer 2 With respect to 99% by weight of ethylene random polypropylene resin “Prime Polypro Y-2045GP” (manufactured by Prime Polymer Co., Ltd.), “Tinuvin 326” (BASF Japan) 0.5% by weight, “Kimasorb 2020” (BASF Japan Ltd.) 0.5% by weight, and a single-screw extruder with a T-die (screw diameter 65 mm, screw length / screw diameter = 28) was used to prepare a transparent resin sheet layer 2 having a width of 430 mm and a thickness of 300 μm. The produced transparent resin sheet layer 2 was cut into A4 size and subjected to corona treatment on both sides using a corona discharge device.

(2) Primer coating solution coating solution Polyester-based medium coating solution: “Lamister” (manufactured by Toyo Ink Manufacturing Co., Ltd.) in terms of solid content, 100 parts by weight, and hexamethylene diisocyanate in solid content 5 parts by weight were added and diluted with a methyl ethyl ketone solvent so that the solid content was 30% by weight, and stirred to prepare a primer coating solution.

(3) Coating solution preparation for pattern layer 4 Polyester-based media coating solution: 100 parts by weight in terms of solid content of a solution in which an indigo pigment is dispersed in “Lamister” (manufactured by Toyo Ink Manufacturing Co., Ltd.) Then, 10 parts by weight of isophorone diisocyanate was similarly added in terms of solid content, adjusted to a solid content ratio of 20% by weight with a methyl ethyl ketone solvent, diluted and stirred to prepare a coating solution for the pattern layer 4.

(4) Coating liquid preparation of surface protective layer 1 50 parts by weight of methyl methacrylate prepolymer provided with a hydroxyl group by synthesis in terms of solids and 50 parts by weight of methyl acrylate oligomer in terms of solids, isocyanate curing agent Then, 10 parts by weight of adduct-modified hexamethylene diisocyanate was added and stirred. Then, the additive component was mix | blended with respect to 110 weight part of the stirred sample as Table 1, and also stirred, and the coating liquid of the surface protective layer 1 was produced.

(5) Coating liquid preparation of surface protective layer (1) of outermost layer A part of the coating liquid of surface protective layer 1 was sampled, and the resin as shown in Table 2 with respect to 124 parts by weight of the coating liquid. System beads, glass beads, and olefin beads were added and stirred to prepare a coating solution used for the outermost surface protective layer (1).

(6) Lamination of each layer A primer prepared in (2) using a coating tool (hereinafter referred to as a Mayer bar) in which a metal wire is wound around a metal rod on one side of an A4 size transparent resin sheet layer 2. The coating solution was applied so that the thickness after evaporation of the solvent was 1.5 μm, and then dried in an oven at 60 ° C. for 3 minutes to volatilize the solvent. Then, on the primer coat layer, using the same Mayer bar, the coating liquid of the pattern layer 4 produced in (3) was laminated and applied so that the thickness after volatilization of the solvent was 1.1 μm. Drying was carried out in an oven at 60 ° C. for 3 minutes to volatilize the solvent. The surface protective layer 1 prepared in (4) is formed on the surface opposite to the surface on which the primer coat layer and the pattern layer 4 laminated on the transparent resin sheet layer 2 have a thickness of 3 μm after solvent evaporation. The coating was carried out by adjusting the plate depth of the Meyer bar and the solid content of the coating solution. By repeating this operation three times, a layer having a coating thickness of 9 μm was provided, and then the ultraviolet ray was irradiated using a D bulb UV lamp (manufactured by Fusion UV Systems Japan Co., Ltd.) to cure the coating film.

On the surface of the coated UV cured film, the coating liquid used for the outermost surface protective layer (1) prepared by the formulation shown in Table 2 was similarly applied at a thickness of 5 μm using a Mayer bar, The outermost surface protective layer (1) was provided by curing with the UV lamp. Thus, to produce a flooring surface for laminates of Examples 1-7 and Reference Example 1.

<Comparative Examples 1-2>
Instead of the formulation shown in Table 2, laminates for flooring material surfaces of Comparative Examples 1 and 2 were produced in the same manner as in Examples except that the formulation shown in Table 3 was applied.

<Comparative Example 3>
The coating solution for the outermost layer produced in Example 1 was coated in such a way that the thickness after solvent evaporation was 12 μm to obtain a surface protective layer. A laminate for a flooring surface was prepared.

<Comparative example 4>
The coating solution for the outermost layer produced in Example 8 was coated in such a manner that the thickness after evaporation of the solvent was 12 μm to obtain a surface protective layer. A laminate for a flooring surface was prepared.

<Performance evaluation>
The laminates for floor material surfaces of Examples and Comparative Examples thus produced were bonded to a wooden base material via an aqueous emulsion adhesive to produce a floor material. The physical properties of the produced floor surface material were evaluated as follows, and the superiority or inferiority of the performance was confirmed.

<Slip resistance>
About each flooring material which used an Example, a reference example, and a comparative example, the static friction coefficient by the surface protective layer coating surface side was measured. The static friction coefficient is measured using a portable tribometer: Tribogear Muse TYPEi-II (manufactured by Shinto Kagaku Co., Ltd.). The values of the static friction coefficient were calculated by selecting only the central 10 points in order and taking the average value. The coefficient of static friction is one of numerical values expressing anti-slip properties, and it is recognized that the higher the numerical value, the higher the anti-slip performance.

<Slidability of surface layer>
After the various floor materials of Examples and Reference Examples and Comparative Examples were cut to a size of 150 mm × 30 mm and a 15 mm square, a laminate was formed on the upper surface of 150 mm × 30 mm with a load of 850 g applied to the 15 mm square. They were set so that they touched each other, and a 5000 reciprocating test was conducted with an automatic sliding tester. The surface layer on the side cut to 150 mm × 30 mm after the test was visually observed to confirm the change in gloss and the presence or absence of ejection of the powdery substance. “◎” indicates no change at all, “○” indicates almost no change (slightly seen), “△” indicates slight change, and large change is observed. Was judged as “×”.

<Steel wool resistance>
Using steel wool # 0000 (manufactured by Bonstar Sales Co., Ltd.), this was affixed to a 20 mm × 20 mm jig using a double-sided tape and reciprocated 50 times with a load of 850 g. Observe gloss and scratches on the surface, “◎” if there is no change at all, “○” if there is almost no change (slightly seen), and some change observed. The determination was made as “Δ”, and “X” when a large change was observed.

As is apparent from Table 4, the resin laminates of Examples 1 to 7 and Reference Example 1 of the present invention have higher anti-slip properties than the resin laminates of Comparative Examples 1 to 3. . For example, in Comparative Examples 1 and 2, since resin-based beads are not added, only a small value is obtained as compared with Examples and Reference Examples . Further, in Comparative Example 3, anti-slip properties comparable to the Examples are obtained, but the slidability is deteriorated. This is presumably because the performance of the surface protective layer was lowered because resin beads for imparting anti-slip properties were dispersed throughout the surface protective layer. On the other hand, in the examples and reference examples , both slip resistance and slidability are compatible.

  Since the laminate for a flooring surface of the present invention does not use any vinyl chloride, there is no concern about environmental problems. Furthermore, since anti-slip performance is imparted, it can be used as a floor material and a laminate for a floor material surface with less risk of a pedestrian falling.

DESCRIPTION OF SYMBOLS 1 ... Surface protective layer 2 ... Transparent resin sheet 3 ... Resin-type bead 4 ... Pattern pattern layer 5 ... Underlayer

Claims (6)

Surface a flooring surface laminate having a surface protective layer for a main material an acrylic resin, the surface protective layer have a laminated structure of two or more layers, only the outermost surface layer, a resin It includes a system beads,
The thickness H of the outermost layer is in the range of 1 μm to 6 μm, and the average particle diameter α of the resin-based beads is H ≦ α ≦ 1.5H with respect to the thickness H of the outermost layer. A laminate for a surface of a flooring material. The laminate for a flooring surface according to claim 1, wherein the resin beads are urethane material. The laminate for a flooring surface according to claim 1 or 2 , wherein hollow glass-based beads are added to the outermost layer. The laminate for a flooring surface according to any one of claims 1 to 3 , wherein olefin resin beads are added as a wax component to the outermost layer. The laminate for a flooring surface according to claim 4 , wherein H ≦ h <α, where h is an average particle diameter of the olefin resin beads. The laminate for a flooring surface according to any one of claims 1 to 5 , wherein the acrylic resin of the surface protective layer has a crosslinked structure.