JPS61688A - Production of nonslip floor-covering material - Google Patents

Abstract

PURPOSE:Solid particles are dispersed so that they sink inside the surface layer of an uncured paste resin, then the resin is cured to give a nonslip floor-covering material which does not lose its nonslip properties, even when the surface layer is worn. CONSTITUTION:Solid particles of more than 2 density such as stones or pebbles are allowed to fall intermittently on the surface of a paste resin with an uncured surface layer, e.g., a polyvinyl chloride resin paste (1.2 density) and the particles sink from the surface layer 200 to disperse in it. They are heated to effect curing to form a resin-particle mixed layer 300 in which the particles are included in full depth of the layer. Then, the surface layer 200 is backed with, e.g., a nonwoven fabric 400 to give the objective nonslip floor-covering material.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application) The present invention relates to a method for manufacturing a non-slip flooring material that is laid on stair treads and slopes to prevent slipping.

(Prior Art) As the above-mentioned type of non-slip flooring materials, there are those in which a surface layer formed by molding and hardening a synthetic resin is provided with convex portions at appropriate locations, or in which the entire surface of the surface layer is made uneven. However, in such non-slip flooring materials, the convex portions and uneven rough surfaces of the surface layer may disappear due to wear during use, and if this happens, there is a problem that the non-slip function is no longer achieved.

- (Problem to be Solved by the Invention) The problem to be solved by the present invention is to provide a method for manufacturing a non-slip flooring material in which the non-slip function does not deteriorate or disappear even if the surface layer is worn away. be.

(Means for solving the problem) A means for solving the above problem is to sink and scatter solid particles inside an uncured surface layer made of paste resin, and then harden the solid particles. It is.

(Function) According to the above means, a non-slip flooring material in which solid particles are scattered inside the hardened surface layer can be obtained. The non-slip function of such non-slip flooring materials is achieved by the solid granules exposed on the surface layer.As long as the solid granules do not disappear even when the surface layer is worn out, they are always exposed on the surface. Functionality will not deteriorate or disappear.

(Example) Figure 2 schematically shows an apparatus for manufacturing non-slip flooring, in which (1) is a feeding device that runs intermittently, and (2) is a predetermined location on the endless belt of the feeding device (1). (3) is a hopper for storing solid particles (100), and its bottom plate 6υ is equipped with a plurality of drop ports (to) as illustrated in Fig. 8. ing.

Further, (4) indicates a thickness regulating device such as a bar coater or a roll coater.

In such manufacturing equipment, solid particles are deposited onto the surface layer (200) made of paste resin, which is intermittently fed in the direction of the arrow in the figure by the action of the feeding device (1), while the feeding device (1) is stopped. (100) is dropped. As shown in detail in Figure 1, the solid particles (100) dropped from the droplet Q of the hopper (3) sink into the uncured surface layer (200) made of paste resin and are scattered inside. The resin-granule mixed layer (SO
O) is formed. In this case, as shown in detail in FIG. 1, the mixed layer (aOO) changes depending on the total height of the solid particles (100) scattered inside the surface layer (200).
200) to form a bulge (801). A predetermined amount of solid particles (100) are added to the surface layer (200
), the surface layer (200) is fed by a certain distance in the direction of arrow A by restarting the feeding device Wl(1), and the same operation as described above is repeated. On the other hand, the surface layer (2) where the above mixture @ (800) is formed
00) is then intermittently fed into a heating furnace (not shown) to be cured into a semi-gel state, and then subjected to necessary treatments, such as top coat treatment.

A backing layer (400) made of asbestos nonwoven fabric, woven fabric, foam, etc. is laminated on the thus obtained surface layer (200) in a subsequent step. Furthermore, as a pretreatment for forming the mixed layer (aOO), the surface is smoothed using a thickness regulator (4).

In the non-slip flooring material manufactured by the above method, as shown in Fig. 4, a mixed layer (800) is formed over the entire thickness of the surface layer (200) laminated on the backing layer (400). It becomes. Further, a portion of the solid particles in the mixed layer (800) remain exposed on the surface of the surface layer (200).

Therefore, the solid particles exposed on the surface of the surface layer (200) exhibit a non-slip function. In this case, if the bulge (801) shown in FIG. 1 is formed, an even better non-slip function will be exhibited due to the synergistic action of the solid particles and the bulge (801). Furthermore, even if the surface layer (200) is worn, a part of the solid particles is always exposed on the surface unless it disappears, so the non-slip function will not deteriorate or disappear due to wear during use.

In addition, applying vibration by operating the vibrator (2) when sinking the solid particles (100, 1 to the surface layer (200)) not only makes it possible to complete this process in a short time, but also makes it possible to It is useful for uniformly scattering the particles (100).Also, when the mixed layer (800) is used as a dotted pattern or other patterns as described above, it improves the aesthetic appearance of the area where the non-slip flooring is installed. The above is beneficial.

In the above, a polyvinyl chloride resin paste can be used as the paste resin forming the uncured surface layer. In this case, it is preferable to use stones, gravel, sand, etc. as the solid particles. Specifically, they are basalt, andesite, etc. Further, the specific gravity of the solid particles depends on the specific gravity of the paste resin, but when it is a polyvinyl chloride resin paste (specific gravity 1.2), it is preferably 2 or more. This is because if the specific gravity is less than 2, the process of sinking and scattering the solid particles inside the surface layer cannot be performed smoothly and takes a long time. The frequency and time of vibration to be applied in this step may be selected within a range that allows the solid particles to be uniformly dispersed.

It is desirable to determine the particle size of the solid particles in relation to the thickness of the surface layer, etc. For example, when the thickness of the surface layer is 2ff, solid particles having a particle size of about 0.2 to 9.4 HM may be used. Further, the time from scattering the solid particles to curing the surface layer needs to be set to a short time such that the scattering state is not disturbed.

(Effect of the invention)

Claims (1)

[Claims] (1) A method for producing a non-slip flooring material, which comprises sinking and scattering solid particles inside an uncured surface layer made of paste resin, and then curing the solid particles.