JP2003245992A - Wall surface protective material and wall surface protective structure. - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall surface protective material having good executability (easiness of an execution) by simultaneously providing design properties and a surface strength as a wall surface material, providing a required impact absorbing performance and an injury preventing performance at an impact time, detouring from the surface of a wall surface panel to a side edge, or easily following to a complicated shape part not flat of a projected corner, a recessed corner of the wall surface, a door or a door frame, a cabinet or the like. <P>SOLUTION: The wall surface protective material A comprises a laminate obtained by integrally laminating a thermoplastic resin surface layer 2 on a thermoplastic resin foamed layer 1 so that a thickness is 1.0 to 5.0mm, a maximum acceleration is 135 G or less, and the puncture impact strength of the layer 1 is 35 to 75Nmm. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall protection material for sticking to an inner wall surface of a corridor or a living room in a building to protect the wall surface, and at the same time, to improve the design and design (appearance) of the wall surface. And a wall protection structure using the wall protection material, particularly, a wall protection material suitable for being applied to a wall surface of a facility such as a hospital, a health facility, or a cell of a prison where there is a risk of injury if it hits. The present invention relates to a wall protection structure using the wall protection material.

[0002]

2. Description of the Related Art Wall materials that have been conventionally provided as a wall material to be attached to an inner wall surface of a building are often made of a relatively thin synthetic resin sheet or film called a so-called wallpaper. The wall material made of this thin synthetic resin sheet / film is designed mainly for the purpose of design, surface antifouling property, and surface scratch resistance. It is possible to wrap around to the side edge, easily follow the protruding and entering corners of the wall surface, the door or door frame, the side and back of the retractable (storage) bed, or a complex shape such as a cabinet Therefore, the workability (ease of construction) was good, but the impact absorption performance and the injury prevention performance when hitting were insufficient.

On the contrary, the wall protection material designed mainly for the shock absorbing performance and the injury preventing performance has a sufficient shock absorbing performance and the injury preventing performance as a matter of course. However, there is a problem that the property is significantly reduced. In particular, it may not be possible to even follow the complicated shapes that are not flat, such as the protruding and entering corners of the wall surface, the door or door frame, or the cabinet, and in some cases even construction cannot be performed. In addition, this type of wall surface material has a weak surface strength as a wall surface protection material and is liable to be broken by scratching or impact.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation as described above, and has a design property and a surface strength as a wall material to be attached to an inner wall surface of a building, and at the same time, has a required impact. It has absorption performance and injury prevention performance when it hits it, and it also wraps around from the surface of the wall panel to the side edge or the back side, and it is not flat and complicated such as the protruding and entering corners of the wall surface and doors or door frames or cabinets. The purpose of the present invention is to provide a wall surface protecting material that easily follows the shape portion and has good workability (easy to build). Here, the surface strength means, for example, the ability to prevent the surface from being scratched or broken even when a child hits a toy or the like or scratches it with a spoon or the like. Still another object of the present invention is to provide a wall surface protection structure using the above wall surface protection material.

[0005]

A wall protection material of the present invention which achieves the above object is a wall protection material in which a thermoplastic resin surface layer is integrally laminated on a thermoplastic resin foam layer, and the thickness thereof is Is 1.0 mm to 5.0 mm, the maximum acceleration is 13
It is characterized by being 5 G or less (Claim 1). At this time, when more surface strength is required as the wall surface protection material, it is desirable that the puncture impact strength of the thermoplastic resin surface layer be 35 to 75 N · mm (claim 2). Further, it is preferable that the thermoplastic resin surface layer comprises a thermoplastic resin transparent layer and a thermoplastic resin printed layer (claim 3). Further, the wall surface protection structure according to the present invention, when the wall surface protection material is attached to the surface of the wall surface,
It is characterized in that it is made to wrap around at least the side edges of the wall surface and is bonded (claim 4).

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of a wall surface protecting material and a wall surface protecting structure according to the present invention will be described in detail with reference to the drawings, but the present invention is limited to these embodiments. Not a thing.

The wall surface protecting material A according to the present invention is basically composed of a laminated body in which a thermoplastic resin surface layer 2 is integrally laminated on a thermoplastic resin foam layer 1, and the surface of an inner wall surface or wall surface panel of a building. By attaching to the wall surface, the wall surface is provided with not only a design property but also a shock absorbing performance, an injury preventing performance and a surface strength, and at the same time, excellent workability (ease of construction) is exhibited. In addition, as the wall surface B to which the wall surface protection material A according to the present invention is applied, not only the existing inner wall surface but also the inner wall surface of a building including movable or fixed partitions and partitions is used. Plates (wall panels) molded into flat plates such as metal plates such as iron plates, gypsum boards, slate plates, synthetic resin plates, particle boards, etc., and doors, door frames, foldable types (Storing) This includes the side and back surfaces of the bed, the cabinet, and the like, and these are collectively referred to simply as the wall surface.

The thermoplastic resin foam layer 1 is mainly for improving the impact absorption performance and the injury prevention performance of the wall surface protection material A, and is formed by foaming a thermoplastic resin or rubber, or those foams. A laminated body or the like can be used. As the thermoplastic resin forming the foam layer 1,
For example, high-density polyethylene, low-density polyethylene, linear low-density polyethylene, homopolypropylene, random polypropylene, block polypropylene, polybutene-1, copolymer resin of ethylene and α-olefin having 3 or more carbon atoms, ethylene-propylene rubber, Copolymer of ethylene and vinyl monomer such as ethylene-propylene-diene rubber, ethylene-butene rubber, ethylene-vinyl acetate copolymer resin, ethylene-acrylic acid ester copolymer resin, ethylene-methacrylic acid copolymer resin, olefin-based thermoplastic elastomer , One kind or a mixture of two or more kinds of synthetic resins such as amorphous α-olefin resin can be used.
The expansion ratio of the foam layer 1 is preferably about 2 to 40 times. That is, when the expansion ratio is lower than 2 times, the desired shock absorbing performance cannot be obtained, and when the expansion ratio is higher than 40 times, the shock absorbing performance is deteriorated.
The expansion ratio is about 30 to 30 times, and the compression strength thereof is 5 to 70 kPa, further 10 to 50 kPa when measured by JIS K 6767 5.7 [compression hardness].
It is preferable that At this time, the form of foaming may be either open-cell or closed-cell, but the closed-cell type is preferable if more excellent shock absorbing performance is exhibited. By the way, the expansion ratio of the foam layer 1 differs depending on whether the thermoplastic resin as a raw material is a soft resin or a hard resin. For example, when a soft thermoplastic resin such as vinyl chloride is used, it is 2 to 5 The expansion ratio is about double, and when a hard thermoplastic resin such as polyethylene is used, the expansion ratio is about 25 to 30 times. By doing so, it becomes possible to exhibit the required compressive strength described above.

The thickness of the foam layer 1 is determined according to the foaming ratio, but normally 1.0 mm to 5.0 mm is appropriate, and the thicker the foam layer 1, the lower the bending workability during construction. Since the workability deteriorates, 1.0 mm to 3.
The thickness is preferably about 0 mm. As a result of the experiment, in consideration of the balance between the impact absorption performance as the wall surface protection material A and the workability, the thickness of the foam layer 1 made of a soft thermoplastic resin such as vinyl chloride is 2.0 mm to 2.5 m.
The expansion ratio is 2 to 5 times in m, and the thickness of the foam layer 1 made of a hard thermoplastic resin such as polyethylene is 2.0 mm.
By setting the expansion ratio to be 2.5 to 30 mm and the foaming ratio to be 25 to 30, the foam layer 1 having excellent impact absorption performance and workability was obtained as the wall surface protective material A.

In the present invention, the impact absorption performance is evaluated in accordance with the method defined in JIS-A-6519 [Steel floor base component for gymnasium] 8.6 [Floor hardness test]. I did it. This test method evaluates the hardness of the floor by measuring the maximum acceleration (G value) when the head model is dropped on the floor. The smaller the G value, the more shock is absorbed. Therefore, it can be said that the shock absorption performance is high and the safety (collision prevention performance) when hit is high. As the impact absorption performance required by the wall surface protection material A according to the present invention, the hardness of the floor defined in JIS-A-6519 8.6 is assumed, assuming that the user falls down and hits his head. The maximum acceleration in the test is 135
It is preferably G or less, more preferably 120 G
It is the following. By the way, among the floor finishing materials on the market that have a maximum acceleration of about 160 G for concrete floors and comply with JIS A5705 [Vinyl floor materials] standard, a 2.0 mm thick vinyl floor sheet without a foam layer ( JIS A 5705 [Vinyl flooring material] code: N
C) has a maximum acceleration of about 142 G and also has a foam layer and is a 2.8 mm thick vinyl floor sheet (JIS A 5
The maximum acceleration of 705 [vinyl-based floor material]: DC) is about 125G. Also, newspaper (0.07 mm thick)
The maximum acceleration is about 135 G when the ten sheets are stacked and folded four times, and the maximum acceleration is about 120 G when the sheet is folded eight times.

The impact absorption performance and workability of the wall surface protection material A are not determined only by the foam layer 1, but are also influenced by the thermoplastic resin surface layer 2 described later.
That is, the impact absorption performance of the wall surface protection material A is determined by the repulsive force of the resin foam layer 1 and the resin surface layer 2 covering the surface of the resin foam layer 1.
Strength (surface hardness, elasticity, etc.) and the thickness of the resin surface layer 2,
It is determined by

The thermoplastic resin surface layer 2 covering the surface of the foam layer 1 is for imparting a design property as the wall surface protective material A and at the same time imparting surface strength and the like. Examples of the thermoplastic resin used as the resin surface layer 2 include high-density polyethylene, low-density polyethylene, linear low-density polyethylene, homopolypropylene, random polypropylene, block polypropylene, polybutene-
1, a copolymer resin of ethylene and an α-olefin having 3 or more carbon atoms, a copolymer of ethylene and a carboxyl group-containing monomer, an olefin-based thermoplastic elastomer, styrene-
Olefin block copolymer, styrene elastomer, amorphous α-olefin resin, polyamide, polycarbonate, polystyrene, polyoxymethylene, polyphenylene oxide, polysulfone, polyacrylate, acrylic resin, methacrylic resin, polyester, polyurethane, polyester elastomer, polyurethane -Based elastomers and other thermoplastic resins or thermoplastic elastomers, or butyl rubber, acrylic rubber, isoprene rubber, styrene-butadiene rubber, acrylonitrile-
Examples include synthetic rubbers such as butadiene rubber and acrylic-styrene rubber, and natural rubber and hydrogenated products thereof such as one kind or a mixture of two or more kinds of synthetic resins. Agents, fillers, colorants, flame retardants, antibacterial agents, fungicides, antistatic agents, processing aids, etc. may be added.

The surface strength of the resin surface layer 2 is obtained by adding the thickness to the surface hardness and scratch resistance related to the surface scratching performance, and the tear strength and puncture impact strength related to the tear strength. To be evaluated. The thickness of the resin surface layer 2 is usually preferably in the range of 0.1 mm to 1.5 mm. If the thickness of the resin surface layer 2 is less than 0.1 mm, the surface strength required for the resin surface layer 2, particularly scratch resistance, cannot be maintained, and if the thickness is greater than 1.5 mm, the flexibility becomes poor. The bending process becomes difficult and the workability deteriorates.

The surface hardness of the resin surface layer 2 is ASTM D
2240-86 [Test Method for Rubber Property-
Durometer Hardness], the surface hardness (20 ° C,
15 seconds later), the range of 30 to 50 is preferable, and 3
The range of 5 to 45 is more preferable. When the surface hardness of the surface layer 2 is increased, the surface scratching performance is improved, but on the other hand, as the surface hardness is increased, the flexibility becomes poor, and bending work becomes difficult and the workability deteriorates. When the surface hardness (20 ° C., after 15 seconds) is lower than “30”, the surface scratching performance is remarkably deteriorated, and the wall protecting material A cannot function. By the way, when a vinyl chloride resin is used as the resin surface layer 2, 10 to 60 parts by weight, preferably 30 to 5 parts by weight of a plasticizer is added to 100 parts by weight of a vinyl chloride resin having a polymerization degree of 1000.
When 0 parts by weight was added to form a sheet by calendering,
The surface hardness (20 ° C., after 15 seconds) was in the range of 35 to 45, and both requirements of surface scratching performance and ease of bending could be satisfied.

The scratch resistance of the resin surface layer 2 was evaluated according to JIS-K-5400 8.4.1 [Testing machine method]. This test method
The surface of the resin surface layer 2 formed into a film is scratched and measured by a pencil. The scratch resistance of the resin surface layer 2 is preferably a hardness B or higher, more preferably a hardness H or higher in terms of pencil scratching value. Is good. If the hardness is B or less, the surface scratching performance required as the resin surface layer 2 cannot be exhibited, and the function as the wall surface protection material A cannot be achieved.

The tear strength of the resin surface layer 2 is a strength required when a shock or the like is excessively applied to other portions such as the corners of the wall surface.
-K-6301 9. [Tear test] was performed. In this test method, a resin molded into a sheet or film was torn from a right angle portion by [B type] specified in JIS-K-6301 [9.2.1 Shape and size of test piece]. The strength is measured, and the tear strength of the present resin surface layer 2 is preferably in the range of 65 to 100 N / mm, more preferably in the range of 75 to 95 N / mm. When the tear strength of the resin surface layer 2 was in the range of 65 to 100 N / mm, the resin surface layer 2 was obtained that was excellent in tear resistance and easy to bend during construction.

The puncture impact strength of the resin surface layer 2 is intended to measure the crack resistance strength due to the impact required when the impact or the like is excessively applied to other parts such as the corners of the wall surface. The one and ASTM D 25
6-84 [Test Methods for Impact Resistance of Pla
stics and Electrical Insulating Materials] test method. This test method measures impact puncture resistance and stiffness by a puncture tester, and the relative contribution of crack resistance and stiffness can be determined. The unit of strength is represented by [N · mm]. The puncture impact strength of the resin surface layer 2 according to the present invention is preferably in the range of 35 to 75 N · mm, further 4
The range of 0 to 70 N · mm is more preferable. Resin surface layer 2
When the puncture impact strength is in the range of 35 to 75 N · mm, the wall protection material has excellent crack resistance and is easily bent during construction.

Further, the resin surface layer 2 may be formed as a single layer which is transparent, opaque or semi-transparent as shown in FIG. 1, and as shown in FIG. For the purpose, a transparent or semitransparent transparent layer 21 made of a thermoplastic resin in which the printed pattern of the printed layer 22 is easily visible may be integrally formed on the printed layer 22 to form a composite layer. The term "transparent or translucent" as used herein includes milky white, colored transparent, and transparent layers mixed with fibers and the like. Then, by embossing the surface of the resin surface layer 2 or the surface of the transparent layer 21, it is possible to obtain the wall surface protection material A with more excellent design.

Further, the transparent layer 21 of the resin surface layer 2 is mixed with an inorganic or organic antibacterial agent or antifungal agent to give an antibacterial property.
It is also possible to impart antifungal properties, and in order to prevent dust adhesion due to static electricity, antistatic properties can be obtained by general techniques such as mixing an antistatic agent in the transparent layer 21 or applying an antistatic paint. It is also possible to add. As a measure of antistatic property, JIS-K-6911 5.
The surface resistivity by the test method of 3 [resistivity] is 10 ¹³ Ω
The following is preferable, and 10 ¹⁰ Ω or less is preferable.

When the resin surface layer 2 is integrally laminated on the resin foam layer 1, the method is not particularly limited, and examples thereof include a thermal laminating method, a dry laminating method using an adhesive, a wet laminating method, a hot melt method. It is possible to laminate by a method such as a laminating method. In this case, when the resin surface layer 2 and the resin foam layer 1 are made of the same type of resin, the resin surface layer 2 can be sufficiently laminated by thermal lamination.
When the resin foam layer 1 and the resin foam layer 1 are made of different resins, it is preferable to use an adhesive. At this time, for example, when the resin surface layer 2 made of vinyl chloride resin and the resin foam layer 1 made of olefin resin are laminated with an adhesive (conversely, the resin foam layer 1 made of vinyl chloride resin is made of olefin resin). Resin surface layer 2
It is preferable that the laminated surface of the olefin resin foam layer (or the surface layer) is subjected to corona treatment or primer treatment. Examples of the primer include nitrile butadiene (NBR), styrene butadiene rubber (SBR), polyester type and urethane type.

In order to attach the wall surface protective material A according to the present invention to the surface of the wall surface B or to wrap around the side surface or the back side of the wall surface B to fix the same, a conventional vinyl copolymer resin,
Vinyl acetate resin system, EVA resin system, acrylic resin system, S
BR type, chloroprene type, nitrile rubber type, epoxy resin type, polyurethane resin type, hot melt type (EVA
Adhesives such as resin, polyester, and synthetic rubber) can be used, but especially in the case of sticking to the protruding / incoming corners of the wall surface B, doors or door frames, or non-flat and complicated shapes such as cabinets. Since the conformability to the shape during the sticking work is important, the initial adhesive force is required. Therefore, as adhesives for complex shaped parts, chloroprene type, nitrile rubber type, polyurethane resin type, hot melt type (EVA type, polyester type, synthetic rubber type)
Among them, chloroprene-based and nitrile rubber-based adhesives are more preferable.

As the wall protection material A having excellent workability, it is possible to follow the complicated shape of the projected / inner corners of the wall, the door, the door frame, the cabinet, etc., and especially the side edge or back side of the wall panel. It is particularly important that it can be easily rolled up, that is, easily bent. Workability of the wall protection material A, that is, the wall protection material A
The following test method was used to evaluate whether or not the product can be easily bent. [Evaluation method of workability] 100 mm x 25 on a glass plate
A test piece having a size of mm is folded in two, and a weight of 500 g is applied to the folded portion for 30 seconds. Then 50
After removing the 0 g weight, a 50 g weight is placed on the tip portion of the test piece folded in two, and the time in which the weight is maintained without falling (holding time) is measured. Bending is performed in both front and back bending directions,
A total of 4 points in the vertical and horizontal directions were set as one sample. Moreover, the curing of the test piece is 20 ± 2 ° C., 60 ± 5
The test was carried out by leaving it in a constant temperature and humidity room at% RH for 24 hours. When the above-mentioned test is carried out, those having a holding time of 15 seconds or more are easy to bend and have excellent workability, and the holding time is 30
Those of more than a second were easier to bend and had excellent workability. If the holding time is less than 15 seconds, it is difficult to apply the product to the 90-degree corner portion of the wall surface during actual construction, and wrinkles occur when it is bent. Further, when the holding time was 15 seconds or more and less than 30 seconds, it was possible to bend and manage to stick it to the 90-degree corner portion of the wall surface. When the holding time was 30 seconds or more, the bending process could be easily performed and the product could be easily attached to the 90 ° corner portion of the wall surface.

[0023]

EXAMPLES Next, the present invention will be described in more detail with reference to specific examples and comparative examples, but the present invention is not limited to these examples.

Example 1 A coloring pigment is added to 45 parts by weight of a plasticizer, 15 parts by weight of a filler, 4 parts by weight of a stabilizer, and 100 parts by weight of a vinyl chloride resin having a degree of polymerization of 1000. The vinyl chloride resin composition is rolled by a calender molding machine at a processing temperature of 175 ° C. into a sheet having a thickness of 0.8 mm to form a resin surface layer 2, and at the same time, the resin surface layer 2 is made to have a thickness of 2.0 mm by 30 The sheet was laminated on a double-layered polyethylene resin sheet (resin foam layer 1) to obtain a wall protection material A.

<Example 2> The same vinyl chloride resin composition as in Example 1 was used, and the processing temperature was 17 using a calender molding machine.
A sheet of vinyl chloride resin (resin foam layer 1) obtained by rolling a sheet having a thickness of 0.8 mm at 5 ° C. to form a resin surface layer 2 and foaming the resin surface layer 2 to have a thickness of 2.0 mm. Layered on top, a wall protection material A was obtained.

<Example 3> Using the same vinyl chloride resin composition as in Example 1, a calendering machine was used to obtain a processing temperature of 17
A sheet having a thickness of 0.55 mm is rolled at 5 ° C., and a print pattern is formed on the upper surface of the sheet by a surface gravure printing machine to form a printed layer 22, and the upper surface of the printed layer 22 has a polymerization degree of 100.
A vinyl chloride resin composition containing 20 parts by weight of a plasticizer and 3 parts by weight of a stabilizer per 100 parts by weight of a vinyl chloride resin consisting of 0 is processed by a calendering machine at a processing temperature of 175 ° C.
Then, a transparent layer 2 formed by rolling into a sheet having a thickness of 0.25 mm.
1 is laminated to form a resin surface layer 2, and the resin surface layer 2
A wall surface protective material A was obtained by laminating a polyethylene resin sheet (resin foam layer 1) which was foamed 30 times as thick as 2.0 mm on the lower surface of the above.

Example 4 A polyolefin resin composition containing 30 parts of low-density polyethylene (LLDPE) and a coloring pigment to 70 parts by weight of a partially crosslinked thermoplastic olefin elastomer was processed with a calender molding machine at a processing temperature of 17
At 5 ° C., it is rolled into a sheet having a thickness of 0.8 mm to form a resin surface layer 2, and the resin surface layer 2 is laminated on a polypropylene resin sheet foamed 30 times as thick as 2.0 mm,
A wall protection material A was obtained.

Comparative Example 1 A coloring pigment is added to 65 parts by weight of a plasticizer, 15 parts by weight of a filler, 4 parts by weight of a stabilizer, and 100 parts by weight of a vinyl chloride resin having a degree of polymerization of 1000. The vinyl chloride resin composition was rolled by a calender molding machine at a processing temperature of 175 ° C. into a sheet having a thickness of 0.1 mm to form a resin surface layer 2, and at the same time, the resin surface layer 2 was formed into a sheet having a thickness of 1.0 mm. The sheet was laminated on a polyethylene resin sheet (resin foam layer 1) which was double foamed to obtain a wall surface protective material A.

With respect to Examples 1 to 4 and Comparative Example 1, the obtained wall protection material A was evaluated for impact absorption performance, surface strength and workability. The evaluation results are shown in Table 1. The evaluation criteria are as follows. (Evaluation Criteria) <Shock Absorption Performance> Measurement method: Maximum acceleration was measured according to JIS-A-6519 8.6. ◎ = G value is 120 or less ○ = G value is more than 120 and 135 or less × = G value is more than 135 <Surface strength> (1) Surface hardness measurement method: Rubber hardness meter based on ASTM D 2240 (Shore D type Surface hardness (20 ℃,
After 15 seconds) was measured. ◯ = Surface hardness of 35 or more × = Surface hardness of less than 35 (2) Scratch resistance measurement method: Measured according to JIS-K-5400 8.4.1 Tester method. ○ = Pencil scratch value is hardness H or more × = Pencil scratch value is hardness B or less (3) Tear strength measurement method: JIS-K-6301 9. It measured based on the tear test method. ⊚ = 75 to 95 N / mm ○ = 65 to less than 75 N / mm, 95 N / mm over to 100
N / mm × = less than 75 N / mm, over 100 N / mm (4) Puncture impact strength measurement method; ASTM D 256 test method ◎ = 40 to 70 N · mm ○ = 35 to less than 40 N · mm, 70 N · mm over 75N
-Mm or less x = less than 35 N-mm, over 75 N-mm <Construction property> The retention time was measured by the evaluation method of construction property. ◎ = 30 seconds or more ○ = 15 seconds or more and less than 30 seconds × = less than 15 seconds

[0030]

[Table 1]

From the evaluation results in Table 1 above, the shock absorption performance,
Wall protection material A with surface strength and workability
When the above is comprehensively evaluated, it can be said that those of Examples 1 to 4 are preferable as the wall surface protective material A, and Examples 1 to 3 are more preferable. Among them, it can be said that the example 2 is preferable when the impact absorbing property is emphasized as the wall surface protecting material A, and the example 1 or the example 3 is preferable when the workability is emphasized.

[0032]

EFFECTS OF THE INVENTION According to the wall surface protective material of the present invention, the wall surface material has a design property and surface strength as a wall material to be attached to the inner wall surface of a building, and at the same time, it has a required shock absorbing performance and an injury prevention at the time of hitting. It will be equipped with performance. Moreover, it can be made to wrap around from the surface of the wall panel to the side edge or the back side, and easily follow the uneven shape of the wall surface and the complicated shape parts such as doors or door frames or cabinets, etc. (Ease of construction) is also good.

Further, according to the wall surface protecting material of the third aspect, the thermoplastic resin surface layer is composed of the thermoplastic resin transparent layer and the thermoplastic resin printed layer, so that it is superior to the conventional wall material. While exhibiting excellent designability that is not inferior,
It is a wall protection material that has excellent shock absorption performance, injury prevention, and workability.

According to the wall surface protection structure of the fourth aspect, the wall surface protection material is fixed to the surface of the wall surface panel by wrapping around to at least the side edge. Therefore, the wall surface protection structure using the wall surface protection material. It is possible to obtain a wall protection structure that can be easily fixed by a construction method that uses affixing technology such as flooring and wallpaper, and has excellent surface strength, shock absorption performance, and injury prevention performance. it can. Moreover, by sticking the above wall protection material to the upper surface of the wall surface, the shock absorption performance is reduced (maximum acceleration G value is reduced by 25 G or more) compared to the conventional wall surface, and the injury prevention performance can be greatly improved. .

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of an embodiment in which a wall surface protective material according to the present invention is attached to a wall surface.

FIG. 2 is a schematic cross-sectional view showing another embodiment of the wall surface protecting material according to the present invention.

[Explanation of symbols]

A: Wall protection material B: Wall surface 1: Resin foam layer 2: Resin surface layer 3: Adhesive for fixing 21: Transparent layer 22: Printing layer

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshio Kamigori             Ronsea, 4-15-3 Midori, Sumida-ku, Tokyo             Within Le Industry Co., Ltd. F-term (reference) 4F055 AA15 BA19 CA06 CA15 CA18                       DA08 FA05 FA06 FA08 FA38                       GA20 GA26 GA32                 4F100 AK01A AK01B AK15 BA02                       CA05 CA13 CA23 DJ01A                       GB08 HB00B JB16A JB16B                       JK03 JK10 JK12 JL01 YY00

Claims (4)

[Claims] 1. A wall protection material comprising a thermoplastic resin foam layer integrally laminated with a thermoplastic resin surface layer, wherein the wall protection material has a thickness of 1.0 to 5.0 mm and a maximum acceleration of 135 G or less. Characteristic wall protection material. 2. The wall surface protecting material according to claim 1, wherein the thermoplastic resin surface layer has a puncture impact strength of 35 to 75 N · mm. 3. The wall surface protecting material according to claim 1, wherein the thermoplastic resin surface layer comprises a thermoplastic resin transparent layer and a thermoplastic resin printed layer. 4. A wall surface protection structure comprising the wall surface protection material according to any one of claims 1 to 3 attached to the surface of a wall surface so as to wrap around at least side edges.