JP3079057B2 - Non-slip mat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat to be spread, and more particularly to a non-slip mat to be laid and used in order to prevent a floor such as a carpet or a tatami mat from being dirty by eating and drinking when a baby eats and drinks. It is.

[0002]

2. Description of the Related Art Infants often eat and drink food and drinks, thereby soiling clothes and dining tables,
In addition, it is common to see spills on the floor such as carpets and tatami mats. Dirty clothes will be washed, and the table will be relatively easy to wipe and clean with a cloth, but it will be difficult and often bulky to remove dirt attached to the floor due to spills. Antifouling measures may be taken on the floor.

[0003] As an example of floor antifouling means performed in ordinary households, there is a cheap and easy method of laying papers such as old newspapers or synthetic resin films on the floor. Paper often absorbs and permeates liquids, and therefore stains up to the floor surface.In this regard, synthetic resin films such as pail garbage bags are waterproof and do not transmit liquids.
The film laid on the floor is quite slippery on the surface and the contact surface with the floor, and there is a risk of falling over. In addition, when a child's chair or table is placed on the laying, it often breaks or tears due to partial pressure or torsion, making it impossible to achieve the antifouling purpose.

[0004] Therefore, a so-called leisure sheet, which is simply used as a rug in the outdoors, such as a picnic, an excursion, a cherry blossom viewing, and an athletic meet, is sometimes laid on an indoor floor. This is a synthetic resin woven or knitted fabric, non-woven fabric, etc. as a base material, with a synthetic resin layer provided on one or both sides thereof, which is effective in that it is waterproof, high-strength, and excellent in durability. Because it is a resin sheet body with a relatively smooth surface, it does not have elasticity and is slippery when a person behaves on the leisure sheet, and it also has poor cushioning when kicking action is added, and the leisure sheet slides on the floor surface etc. , Which also risks falling.

[0005]

SUMMARY OF THE INVENTION In the present invention, there is provided a mat which is effectively used as an antifouling means for floors, particularly when eating and drinking for infants, and has high strength and durability.
An object of the present invention is to provide a mat that has appropriate elasticity and cushioning property, and is provided with excellent anti-slip performance and high safety.

[0006]

Means for Solving the Problems The present invention as a means for technically solving the above problems is to provide a sheet-like material made of a fibrous body made of a thermoplastic resin as a base material, and to waterproof the front side of the base material. A JIS film is formed on at least the lower surface of a laminate in which a conductive film layer is formed and an elastic foam sheet material is bonded on the back side.
Flexural rigidity measured by -K7106 is 100MPa
The gist of the present invention is a non-slip mat that is formed by laminating a non-slip layer of a polyolefin resin having a dynamic friction coefficient of 0.6 or less. Further, the polyolefin-based resin constituting the anti-slip layer is an ethylene-ethyl acrylate copolymer, which is a mat having slip resistance.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The base material used for the mat of the present invention, which is the main component of the physical strength of the mat, is a woven fabric, a knitted fabric, a fibrous body made of a thermoplastic resin, or the like.
It is a sheet-like material such as a nonwoven fabric or a felt base.

[0008] Here, the thermoplastic resin can be made of ethylene, propylene, 1-butene, 4
-In addition to polyolefin resins composed of homopolymers or mutual copolymers of α-olefins such as -methyl-1-pentene or copolymers of these α-olefins and other comonomers, polyamide resins such as nylon, Polyester resins such as polyethylene terephthalate, polystyrene resins, polyacrylonitrile resins, polyvinyl chloride resins, polyvinylidene chloride-vinyl copolymers and the like, and the form of the fibrous body is obtained by slitting and stretching the film. Single layer or multilayer type such as flat yarn, split yarn obtained by splitting flat yarn, monofilament obtained by drawing a filament extruded from a circular or irregular nozzle, or multifilament obtained by converging low fineness filament, core-sheath type, parallel Unlimited use of composite yarns such as molds Used.

The form and texture of the fibrous sheet is not limited. For example, a woven cloth, a typical plain weave, a twill weave, an entangled weave, a woven weave, or the like. For nonwoven fabrics, spunbonded nonwoven fabrics, flash-spun nonwoven fabrics, meltblown nonwoven fabrics, etc. It may be a laminate reinforced by a bonding method or the like or a combination thereof.

In this sheet-like material, a waterproof film layer is formed on the front side. However, if it is the least expensive method for forming the sheet-like material, the sheet-like material is coated with a molten resin by direct extrusion lamination and cooled. It can be a waterproof film layer. In this case, since it is basically plain or monochromatic, if it is assumed that the design is enhanced by applying the design as a mat to be spread, a polyvinyl chloride resin, a vinyl acetate resin,
Acrylic resin, gravure printing or the like is performed using a known printing ink using a vehicle such as urethane resin as a vehicle, and the printed surface is placed inside and affixed in contact with a sheet-like material to protect the printed surface. This is the preferred method.

In the latter method of forming a waterproof film layer, the film used is a polyester-based, polypropylene-based or polyethylene-based film which is durable and excellent in transparency, has good workability and is inexpensive. Is preferably subjected to a uniaxial or biaxial stretching treatment, and is preferably subjected to a surface treatment such as a corona treatment or an ozone treatment in order to firmly and clearly attach printing.
In addition, known methods such as a melt extrusion lamination method, a dry lamination method, and a thermocompression lamination method can be employed for laminating the printed film and the sheet-like material, but the extrusion lamination method is preferred in terms of continuous productivity and resin workability. preferable.

The method of laminating two members by the extrusion laminating method involves sandwiching a sand resin for bonding in a molten state between the two members, and a polyolefin having a polar group in order to firmly join both layers as a sand resin. Synthetic resin of the same type as the resin or both layers, the same type of synthetic resin is preferably used, for example, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, maleic anhydride-modified low-density polyethylene, low-density polyethylene, Linear low-density polyethylene, ethylene-propylene copolymer and the like can be mentioned.

Next, an elastic foam sheet material is positioned on the back side of the sheet-like material having the waterproof film layer formed on the front side.
This elastic foam sheet material is for imparting elasticity and cushioning to the mat, and is, for example, polypropylene, polyethylene, ethylene-vinyl acetate copolymer, ethylene-
Acrylic acid copolymer, ethylene- (meth) alkyl acrylate copolymer, polystyrene, polyester, polyurethane or synthetic resin foam such as various elastomers,
Rubber foams such as styrene butadiene rubber, urethane rubber, chloroprene rubber, and natural rubber are exemplified.

The elastic foam sheet material needs to have flexibility and cushioning property, and preferably has a density of 10 to 50 kg / m ³ and a thickness of 0.5 to 10 mm. This is inferior in compression recovery and wear resistance when the density is low, and is unsuitable because the density is low in flexibility when the density is high.
Those thinner than 0.5 mm are inferior in elasticity and 10 mm thick
This is because, if it exceeds, it is assumed that a problem arises because the roll becomes too large and the workability and workability deteriorate.

As a method of bonding the elastic foam sheet material to the back side of the sheet material, a method using various adhesives such as urethane type, vinyl type, acid type, epoxy type, powder thereof or hot melt web, heat sealing. A known method such as an extrusion lamination method using a sand resin or the like can be employed, but it is preferable to use an extrusion lamination method in the same manner as in the case of laminating the printed film on the front side of the sheet-like material.

The waterproof film layer / sheet thus configured
An anti-slip layer made of a specific polyolefin-based resin is laminated on the lower surface of the laminated body of the sheet-like material / elastic foam sheet material, that is, on the exposed surface of the elastic foam sheet material in the laminate. This is because the formation of the slip-proof layer on the lower surface of the laminate is an absolute condition, and the formation of the slip-proof layer on the lower surface and the upper surface of the laminate may be performed.

The polyolefin resin serving as the anti-slip layer has a flexural rigidity of 1 as measured according to JIS-K7106.
It is important that the dynamic friction coefficient is less than 00 MPa and the dynamic friction coefficient is 0.6 or more. That is, since the coating has elasticity and a large dynamic friction coefficient, excellent anti-slip properties can be added to the mat.

As the polyolefin resin for the anti-slip layer,
For example, ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate, ethylene-vinyl acetate copolymer,
An ethylene-propene copolymer or a mixture thereof can be suitably used, and a material satisfying the range of the flexural rigidity and the dynamic friction coefficient may be selected. Among these, ethylene-ethyl acrylate copolymer is most preferable from the viewpoint of heat resistance, processability, and the like.

As a method for providing the anti-slip layer, it is most preferable to form the above-mentioned polyolefin resin directly into a laminate by a melt extrusion lamination method with good stability and production efficiency. It can also be formed by a method or a thermocompression lamination method. Here, the thickness of the anti-slip layer depends on the type of the laminate, but is preferably 20 to 200 μm, more preferably 35 to 80 μm. That is, when the thickness is less than 20 μm, the abrasion resistance is poor and the elasticity is not utilized, so that the adhesion is insufficient. When the thickness exceeds 200 μm, the rigidity increases, folding becomes difficult, and the weight increases, which is uneconomical.

The mat obtained in this way is cut to a predetermined size, the peripheral portion is turned over, or a rim is processed by a rim tape, and if necessary, eyelets are finished at a predetermined interval.

[0021]

【Example】

Test method 1. Flexural rigidity: JIS-K7106 compliant 2. Dynamic friction coefficient: ASTM-D1894 compliant 3. Tensile strength: JIS-L1096A compliant 4. Tear strength: JIS-L1096A compliant 5. Sliding friction resistance: Sample sheet cut And 10cm x 10cm
Is fixed with a double-sided adhesive tape on a flat plate, and it is inverted and placed on a synthetic resin plate with the sample side down. With a 1 kg weight placed near the center on the flat plate to which the sample sheet is fixed, the end of the sample sheet is gently pulled in the horizontal direction, and the balanced tension at that time is measured by a spring balance.

Example 1 A high-density polyethylene (MFR = 1.0 g / 10 mi) was used as a thermoplastic resin.
n., density = 0.96 g / cm ³ ), put into an extruder, extruded in a molten state from a circular die by inflation method, cooled, formed a film, slit it into a tape shape, and contacted a hot plate It is stretched at a stretching temperature of 115 ° C., an annealing temperature of 120 ° C., and a stretching ratio of 5 times according to the formula stretching method.
00dr flat yarn was formed. Using this flat yarn as the warp yarn, weaving density 8 ×
The base substrate 2 was formed into a flat yarn cloth having a plain weave structure of 8 yarns / inch. Next, a film obtained by subjecting the surface of a biaxially stretched polypropylene film having a thickness of 40 μm to corona treatment and printing the design by gravure printing (printing section 7) as a material to be used for forming the waterproof film layer 4 was prepared. A polypropylene foam having a thickness of 2.2 mm and a density of 25 kg / m ³ was prepared as the sheet material 3. In laminating these base material, film, and elastic foam sheet material, first, a film printed on the front side of the base material 1 is laminated, and an extrusion laminating method is employed, with the printed surface of the film facing inward. Ethylene-vinyl acetate copolymer (MFR = 8.0 g / 10) as a sand resin between both layers
min., VA content = 5% by weight).
A waterproof film layer 4 was formed on the front side of the base substrate 2 via an adhesive layer 6 having a thickness of m. In the same manner, the elastic foam sheet 3 was bonded to the back side of the base substrate 2 via the adhesive layer 6 '.

Subsequently, an ethylene-ethyl acrylate copolymer (MFR = 5.0 g / 10 min., EA content = 9% by weight, flexural rigidity) was formed on the lower surface of the obtained laminate, that is, on the surface of the elastic foam sheet material. = 65 MPa, kinetic friction coefficient = 0.75), and was directly coated with a thickness of 40 μm by an extrusion lamination method to form an anti-slip layer 5 to obtain a mat 1. The section of the mat 1 of this embodiment is shown in FIG.

The tensile strength of the mat of this embodiment is 24 kg / 2
The tear resistance was 5 mm, the tear strength was 7.5 kg, and the sliding friction resistance value on the anti-slip layer side was 880 g. When this mat was laid on tatami mats, flooring, and carpets, and people actually put it on the floor and used it, there was little slippage on the contact surface with the floor, and it had sufficient antiskid properties. Was confirmed.

Comparative Example 1 In Example 1, low-density polyethylene (MFR =) was used in place of the ethylene-ethyl acrylate copolymer used for the anti-slip layer.
7.0g / 10min., Density = 0.916g / cm ³ , flexural rigidity = 110MPa,
The mat was covered with a coefficient of dynamic friction = 0.40). The sliding friction resistance of the low density polyethylene layer side of this mat is
It was 480 g and had a slippery feeling in actual use as a mat.

Comparative Example 2 A mat was prepared in the same manner as in Example 1 except that the anti-slip layer was not covered. The sliding friction resistance of the lower surface (the surface of the elastic foam sheet material) of this mat was 420 g, and the mat had a feeling of slipperiness in actual use as the mat.

[0027]

As described above, the mat of the present invention has a strength and durability that can withstand repeated use and washing by using a sheet made of a fibrous body made of a thermoplastic resin as a base material. The waterproof film layer on the front side provides anti-fouling properties as covers, and the elastic foam sheet material on the back side provides appropriate elasticity and cushioning as a rug, and furthermore, a polyolefin-based material having a specific property. By forming a non-slip layer of resin, slipping with the floor surface is suppressed, and a mat with high safety is obtained.

[Brief description of the drawings]

FIG. 1 is a schematic partial cross-sectional view of a mat according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spread mat 2 Base base material 3 Elastic foam sheet body 4 Waterproof film layer 5 Anti-slip layer 6, 6 'Adhesive layer 7 Printing part

Claims (2)

(57) [Claims] 1. A laminate in which a sheet-like material made of a fibrous body made of a thermoplastic resin is used as a base material, a waterproof film layer is formed on the front side of the base material, and an elastic foam sheet material is adhered on the back side. A mat having a non-slip layer made of a polyolefin resin having a flexural rigidity of less than 100 MPa and a dynamic friction coefficient of 0.6 or more as measured by JIS-K7106. 2. The mat according to claim 1, wherein the polyolefin resin constituting the anti-slip layer is an ethylene-ethyl acrylate copolymer.