JPH049885Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to an anti-slip material that is interposed between a smooth floor surface and a mat such as an entrance mat placed on the floor surface. .

<Prior Art> The most common anti-slip materials of this type are rubber or rubberized products that utilize rubber viscoelasticity, and sponge sheet products that have an uneven surface formed by bubble marks. In addition, Japanese Patent Application Laid-open No. 62-110980 discloses a slippery material in which loop piles with a height of 0.5 to 2 mm are densely planted on the surface of a fabric, and the surface of the loop piles is coated with a resin or resin composition having rubber viscoelasticity. A stopper material is disclosed. The publication states that resins exhibiting rubber viscoelasticity include natural rubber, synthetic rubbers such as SBR and NBR, and emulsions of synthetic resins such as ethylene-vinyl acetate copolymer resins, acrylic resins, and polyurethane resins.・It must be a latex or organic solvent solution, and in order to prevent the voids in the loops from being filled with resin and the loop piles from clumping together, it is necessary to foam the resin solution and apply it. It is stated that it is good.

<Problems to be solved by the invention> In the case of the anti-slip material described in the above-mentioned publication, the anti-slip material between the material and the rug placed on it is sufficiently prevented by the resin coating with rubber viscoelasticity on the surface of the loop pile. Even if the product is satisfied, the anti-slip effect between the material and the smooth floor surface depends solely on the rubber viscoelasticity of the resin composition on the back side of the fabric, which is a non-pile surface, so it is still easy to slip, and there is room for improvement in this respect. was left behind.

The purpose of this invention was to provide an anti-slip material that has a further improved anti-slip effect on smooth floor surfaces.

<Means for solving the problem> This invention uses a needle-punched nonwoven fabric as a core material, and a foamed sheet-like material obtained by impregnating and solidifying a resin exhibiting rubber viscoelasticity into this core material. It is made by slicing at layer locations, and the sliced surface has many minute depressions that are air bubble traces, and the cut ends of the fibers that make up the nonwoven fabric protrude in minute lengths in a raised shape. The above object can be achieved by arranging them with a slight inclination in the direction of.

<Function> Needle-punched nonwoven fabric is produced by slicing a foamed sheet-like material whose core material is a nonwoven fabric whose fibers are arranged in a relatively vertical direction due to needling at the intermediate layer. When cutting, the fibers are pushed by the blade and escape through the soft foam layer, resulting in so-called uncut parts. Later, these uncut parts stand up due to their own elasticity, so the sliced surface looks like it has been raised. The cut ends of the microscopic fibers protrude. Moreover, the raised fibers are tilted in the direction in which they are sliced, as can be seen by microscopic observation and also by the tactile sensation when the sliced surface is rubbed with a fingertip. This is probably
This phenomenon is thought to be caused by the thermal effect during fiber cutting by slicing. In any case, the fact that the fine protruding fibers are arranged on the slice surface with an inclination in a certain direction creates a resistance force against the sliding force from the same direction as the arrangement direction. This drag, together with the rubber viscoelasticity of the resin film, significantly enhances the anti-slip effect.

<Example> The drawing shows an enlarged view of a part of the anti-slip material according to this invention. This anti-slip material is made by slicing a foamed sheet-like material 3 obtained by impregnating and solidifying a needle-punched nonwoven fabric 1 with a resin exhibiting rubber viscoelasticity into the core material at the intermediate layer. 2 is a fiber constituting the nonwoven fabric 1, 4 is a bubble trace, 5 is a sliced surface, and 6 is a micro recess that is a large number of bubble traces that appear on the sliced surface 5. Regarding resins that exhibit rubber viscoelasticity,
As mentioned above. In addition, to make cellular products, we use resin with fine bubbles blown into it,
There is no problem with the method used, such as foaming the added foaming agent.

Generally, the fibers 2 constituting the nonwoven fabric 1 are arranged in the longitudinal direction by needle ring, so the nonwoven fabric 1
The terminal portions 2a and loop-shaped portions 2b of the fibers 2 exposed on the surface are also relatively upright, and these surface exposed fiber portions 2a, 2b are covered with the resin film 7 of the resin exhibiting rubber viscoelasticity described above. .

Due to the above-mentioned reason, the cut end portions 2c of the fibers 2 are formed on the slice surface 5 where a large number of micro-concave portions 6 are formed.
The slices protrude in a nape-like manner and are arranged slightly tilted in the direction of the slice indicated by the arrow. The cut ends 2c of the fibers 2 are covered with a resin film 7 made of a resin exhibiting rubber viscoelasticity.

This anti-slip material is used by placing the sliced surface 5 on a smooth floor surface and placing a mat such as a door mat on top of it.

<Effects of the invention> Just because the minute recesses 6, which can have a suction cup effect, are formed on the bottom surface, it is no different from conventional sponge sheet products.Also, just because the minute naps are formed on the bottom surface, This does not lead to much improvement in the anti-slip effect. However, in this invention, by slicing, the cut ends 2c of the fibers, which protrude in minute lengths in a nap-like manner, are slightly tilted in the direction of slicing, thereby reducing the sliding force from the same direction as the orientation direction. Because it creates a drag force against
Together with the rubber viscoelasticity provided by the resin film 7, these both greatly contribute to improving the anti-slip effect. In addition, the fact that two products can be obtained by dividing the product into two by slicing has a great practical effect.

[Brief explanation of drawings]

The figure is an enlarged sectional view showing the main parts of the anti-slip material according to this invention. 1... Needle punched nonwoven fabric, 2...
Fibers constituting the nonwoven fabric, 2a...terminal portion of fiber, 2b...loop portion of fiber, 2c...cut portion of fiber, 3...foamed sheet-like material of resin exhibiting rubber viscoelasticity, 4...bubble traces , 5... Slice surface, 6
...Minute recess, 7...Resin film.

Claims (1)

[Scope of utility model registration request] It is made by slicing a foamed sheet-like material obtained by impregnating and solidifying a resin exhibiting rubber viscoelasticity into the core material using a needle-punched nonwoven fabric as a core material, and slicing it at the middle layer. On the surface,
An anti-slip material characterized by forming a large number of minute concave portions that are air bubble traces, and in which the cut ends of the fibers constituting the nonwoven fabric protrude in minute lengths in a raised manner and are arranged at a slight inclination in the direction of slicing. .