JPH06269347A - Slip preventing sheet - Google Patents

Abstract

PURPOSE:To improve the durability and slip preventive property by laying nonwoven fabric made of a thermoplastic elastomer fiber under a rug such as an entrance mat or tile carpet, etc. CONSTITUTION:Nonwoven fabric 1 made of thermoplastic elastomer fibers is laid on a floor 3, and a tile carpet or entrance mat 2 is laid on the top of it. There are various types of thermoplastic elastomers, but from the viewpoints of a laying 2 and the adhesion with the floor surface 3, polyurethane or styrene elastomer is preferable. Especially, a styrene elastomer which is obtained by hydrogenerating a copolymer between styrene and a conjugated diene compound can be made into superfine fiber nonwoven fabric easily. By this method, the adhesion with a floor surface is favorable, and the slip preventive effect can be improved, the installation is easy, and a replacement can also easily be done.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-slip sheet which is used as an anti-slip material for rugs such as tile carpets and entrance mats, and furniture, which is an alternative to adhesion.

[0002]

2. Description of the Related Art As a non-slip sheet for a rug that is inserted between a rug such as an entrance mat and a floor, a non-woven fabric or paper having a viscoelastic substance applied to one surface is used. For example, in Japanese Utility Model Publication No. 3-64079, a sheet in which a resin having a non-slip effect is applied to a surface of a non-woven fabric having an insect repellent function and a side to be joined with a rug is fluffed is disclosed in Japanese Utility Model Publication No. 4-9885. The publication proposes a sheet obtained by slicing a sheet obtained by impregnating a needle-punched nonwoven fabric with a resin having rubber viscoelasticity and foaming. In addition, anti-slip papers coated with vinyl chloride, polyurethane, etc., and rugs having anti-slip properties with a mesh-shaped sheet, polyurethane sponge, etc. attached to the back surface are also known. Tile carpet is not a conventional carpet that covers the entire floor surface, but a carpet that is processed into tile-like small pieces in any combination, and after changing the atmosphere, you can change the atmosphere. It is becoming popular because it can clean only dirty parts. As a construction method of such a tile carpet, conventionally, it is common to apply an adhesive agent having good removability onto a concrete slab, a wooden floor material, or a resin floor material, and fix it by adhering on it. It is the enforcement law that is being carried out.

[0003]

The conventional anti-slip sheet is generally thick, and when used as an anti-slip for a tile carpet, for example, the feeling of close contact with the floor surface is poor. Since the anti-slip paper lacks flexibility, it is difficult to fold or wind it up in a compact manner and the layability on the floor is not good. Also,
The crisp sound peculiar to paper is shunned. It is difficult to fold or roll up a bulky and compact product with a polyurethane sponge attached. Further, a rug such as a front door mat provided with anti-slip properties has a drawback that the anti-slip properties are likely to be deteriorated by repeated cleaning treatments and the like, and cannot be used for a long period of time. The conventional method of enforcing tile carpets is that the organic solvent may fill the room indoors and may be harmful to health, and the surface coated with the adhesive is difficult to walk, resulting in poor work efficiency. , It is difficult to peel off the tile carpet to clean the part that is partially soiled during use, and if the number of peeling times overlaps, the adhesive strength decreases and the adhesive is applied again to adhere. Had to do. The present invention eliminates these disadvantages.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a slip-resistant sheet made of a nonwoven fabric of thermoplastic elastomer fiber, and a rug is laid on the floor surface of the slip-resistant sheet made of the nonwoven fabric of thermoplastic elastomer fiber. It is a method of laying a rug, which is characterized in that.

[0005]

The anti-slip sheet of the present invention uses a non-woven fabric composed of thermoplastic elastomer fibers having a high friction coefficient with respect to floor surfaces and rugs, especially tile carpets, and the thermoplastic elastomer works together with elasticity to prevent slipping. The effect is high, and the close integration with the floor is good. Examples of the thermoplastic elastomer include polyurethane, styrene-based elastomer, polyester-based elastomer, and polyether-based elastomer. In the present invention, polyurethane or styrene-based elastomer is preferable from the viewpoint of adhesion to the rug and floor surface. Among them, a styrene-based elastomer obtained by hydrogenating a copolymer of styrene and a conjugated diene compound is particularly preferable because it can easily be made into an ultrafine fiber nonwoven fabric, has high adhesion to the floor surface, and has a high anti-slip effect.

As the conjugated diene used for the synthesis of the styrene elastomer, there are 1,3-butadiene, isoprene, pentadiene, hexadiene and the like, but isoprene is suitable for the purpose of the present invention. In addition, the ratio of hydrogenation is
It is 80% or more, preferably 90% or more of the isoprene double bond based on the conjugated double bond. When the hydrogenation ratio is low, thermal deterioration is likely to occur during melt molding, and the weather resistance of the resulting nonwoven fabric is also deteriorated. .

The non-woven fabric used in the present invention can be obtained by a method in which the elastomer fiber is made into a non-woven fabric by a conventionally known dry method or a wet method, or a method in which a thermoplastic elastomer is made into a non-woven fabric at the same time by a melt blown method or a spunbond method. it can. The non-woven fabric does not have to be an elastomer fiber alone, and non-elastomer fibers such as polyolefin, polyester, or polyamide may be compounded within a range not impairing the effects of the present invention for improving spinnability and the like. In addition, a mesh-like reinforcing sheet may be sandwiched between the nonwoven fabrics when they are formed. In the case of a mesh-like reinforcing sheet, the thermoplastic elastomer fiber easily self-melts through the voids of the mesh and does not require any special adhesion treatment.

The fibers constituting the non-woven fabric used in the present invention are ultrafine fibers from the viewpoints of flexibility and anti-slip property, and further, the adhesiveness that does not give a feeling of strangeness when used between the tile carpet and the floor surface. Is effective. The fiber diameter is preferably, for example, 20μ or less, and the basis weight is 50 to 200.
Those of g / m ² can be used. A nonwoven fabric having such a fiber diameter and a basis weight can be easily obtained by the melt blown method.

When the above styrene-based elastomer is made into a fiber alone, it has high tackiness, and if they are stacked as they are, they tend to stick to each other to form a nodule.
It is preferable to mix and melt-spin in the range of 30%. By changing the mixing ratio of the polyolefin, it is possible to change the adhesive force to the floor surface and the rug, and the adhesion between the non-woven fabrics is prevented, and the spinnability is improved. Increasing the amount of the polyolefin mixed is not preferable because the adhesion to the rug and the floor decreases and the texture becomes hard. Polyethylene or polybutylene may be used as the polyolefin to be mixed, but polypropylene has the best anti-sticking effect.

The above mixed polymer of the block copolymer and the polyolefin has excellent processability such as heat resistance and fluidity, and can be spun and molded with the same ease as a usual thermoplastic polymer such as polypropylene. And
In a usual melt spinning or melt blowing method, an arbitrary fiber or nonwoven fabric can be obtained by variously changing the melt viscosity, the polymer discharge amount, and the amount of the jetting fluid. The non-woven fabric is stored in a roll shape with a sheet of a releasable film or the like interposed therebetween to prevent sticking during storage, if necessary.

In the construction of rugs, the anti-slip sheet of the present invention is laid on the construction portion of the floor surface such as concrete slabs, wooden floors and resin floors, and rugs such as tile carpets and entrance mats are laid on it. Lay. In the case of partially laying a relatively small rug such as a front door mat, the anti-slip sheet of the present invention may be attached to the back surface of the rug and cut into a rug shape and then laid in a predetermined position. Is easy to do as a work.

[0012]

EXAMPLES The present invention will be described in more detail with reference to examples. The method for measuring the frictional resistance value shown in the examples is as follows. Non-woven fabric sample, width 5 cm, length 10
A flat plate made of vinyl chloride (abbreviated as B plate) is firmly fixed on a flat plate (abbreviated as A plate) of cm with double-sided adhesive tape so that the fixed non-woven fabrics face downward. put on top. Approximately 200g on A plate with non-woven fabric fixed
The weight of No. ² is placed, and the fixed non-woven fabric is adjusted so that a load of 44.2 kg per 1 m ² is applied by both the A plate and the weight. The A plate on which the nonwoven fabric was fixed was pulled in parallel on the B plate, and the frictional force at that time was determined.

Example 1 Pellets of hydrogenated block copolymer having a hydrogenation rate of 98% and MFR obtained by hydrogenating a styrene-isoprene-styrene type block copolymer having a styrene content of 27% by weight.
Homopolypropylene pellets having a melt flow rate of 230 ° C. and a load of 2160 g of 200 were mixed with each other in a weight ratio of 85:15 and melt-blown to give a basis weight of 70.
A non-woven fabric of g / m ² was obtained. The average fiber system of this non-woven fabric is 5
μm, and the frictional resistance value was 820 g / 5 cm.

This non-woven fabric is spread over the entire wooden floor surface,
When a tile carpet with a vinyl chloride backing was laid and fixed on it, the tile carpet could be laid close to the floor surface without sliding. The tile carpet was easily removable and could be refilled repeatedly several times.

Example 2, Comparative Example 1 The non-woven fabric of Example 1 was attached to the back surface in conformity with the shape of the entrance mat and laid on a wooden flooring for a practical test. The mat was cleaned every six months and used for 2 years, but during this period, no mat displacement occurred. For comparison, a non-slip doormat with dot-shaped vinyl chloride on the back side was laid directly on the wooden floor and tested. As a result, a gap easily occurs after one cleaning and after two cleanings. Almost no anti-slip effect was observed.

Example 3 Polyurethane pellets of [η] = 1.0 were melt-blown to obtain a nonwoven fabric having a basis weight of 70 g / m ² . This non-woven fabric has an average fiber system of 20 μm and a frictional resistance value of 45.
It was 0 g / 5 cm. When this non-woven fabric was tested in the same manner as in Example 1, a slight deviation occurred during use, but within half a year, it was not a practical problem.

[0017]

Since the non-slip sheet of the present invention uses a nonwoven fabric made of thermoplastic elastomer fiber, it has elasticity.
Since it is flexible, the feel of the rug is not impaired even when it is laid under the rug, and it has good adhesion to the rug and the floor surface, and has extremely high slip resistance. Especially when laying a tile carpet, the non-woven fabric layer made of elastomer fibers has excellent slip resistance but low tackiness,
Even when walking on a non-woven fabric at the time of construction, the construction is easy as compared with the conventional application of a tacky adhesive without adhering to the footwear, and naturally the work environment is good without volatilization of the organic solvent.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a usage state of an anti-slip sheet of the present invention.

[Explanation of symbols]

 1 Anti-slip sheet of the present invention 2 Tile carpet 3 Floor

Claims (2)

[Claims] 1. An anti-slip sheet made of a nonwoven fabric of thermoplastic elastomer fiber. 2. A method of laying a rug, which comprises laying an anti-slip sheet made of a nonwoven fabric of a thermoplastic elastomer fiber on a floor surface and then laying the rug.