KR101240137B1 - Artificial stone having non-slip function and various designs, and process for preparing the same - Google Patents

Abstract

The present invention relates to an artificial stone having a non-slip function and various appearance designs, and a method for manufacturing the same, wherein in the manufacture of artificial stone, various combinations of chips are mixed in a cement base in a predetermined ratio, and then placed in a mold to which irregularities are given in advance. After artificial stone is formed by applying vibration, surface treatment process using brush provides artificial stone with the effect of giving non-slip function by forming various unevenness on the surface as well as more natural appearance design expression. .

Artificial Stone, Non-Slip

Description

Artificial stone having a non-slip function and various appearance designs and a method for manufacturing the same {Artificial stone having non-slip function and various designs, and process for preparing the same}

The present invention relates to an artificial stone used as a building exterior material or interior material and a method for manufacturing the same, and more particularly, to an artificial marble having a non-slip function by providing irregularities on the surface of the artificial stone and a manufacturing method thereof. .

In general, artificial stone, which is used as a building exterior material or interior material, has been provided with granite appearance by mixing various natural stone chips on a cement base and performing surface treatment after pressing.

In addition, the surface has been smoothly processed using abrasive stones to give the surface a beautiful appearance and a certain gloss.Some natural stone granite has a non-slip function by making the surface rough by using a burning method or a saw. That's the level.

Therefore, the existing artificial stone manufacturing method or natural stone processing method has a problem that has a technical limit to give a non-slip function at the same time to give a variety of appearance.

US Pat. No. 6,05543 discloses an artificial stone molded body in which a projection or a buried groove for a figure or a shape is integrally formed in the plane of the substrate, and wherein the main composition of the artificial stone molded body is composed of an inorganic aggregate and a resin. It is a luminous or fluorescent light emitting part, and at least a part of the inorganic aggregate includes a transparent inorganic aggregate in which a luminous or fluorescent material having luminescence accompanied with photoluminescence or ultraviolet absorption is baked on the surface, An artificial stone molded body characterized by containing a transparent inorganic aggregate having the luminous or fluorescent substance fired on its surface in a proportion of 5 to 65% by weight of the total amount of the light emitting portion composition is disclosed.

Korean Patent Laid-Open Publication No. 2003-59079 discloses an artificial stone containing an inorganic aggregate and a resin, and having an uneven surface on which the inorganic aggregate is exposed, wherein the average depth of the surface concave grooves is in the range of 0.02 to 1.0 mm, and the volume ratio of the inorganic aggregate. Nonsliptable artificial stones are disclosed which are 25% to 75%.

In Japanese Patent Laid-Open No. 193-125704, a walkway terrace having a structure of two pairs consisting of a plurality of rows of rows arranged at narrow intervals with shallow grooves having a narrow width on the surface, and provided with perforations installed on the surface such that the grooves are perpendicular to each other. A sidewalk terrace is disclosed.

Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to provide a natural natural stone appearance through the combination of natural stone chips having a variety of colors and sizes, and at the same time to form a variety of irregularities on the surface of the non-slip function Provides artificial stone and a method for producing the same.

The present invention, to achieve the above object, the step of forming a mold with irregularities; Blending the chip with the artificial stone raw material; Molding the artificial stone material blended with chips into a mold and then molding the chip; And curing the molded artificial stone and demolding and polishing the artificial stone having irregularities formed on the surface thereof.

In the present invention, the mold may be made of thermoplastic resin, thermosetting resin, metal, clay or loess, and ABS (Acrylonitrile Butadiene Styrene) which can withstand the molding and curing process of artificial stone is particularly preferable.

In the present invention, the forming step of the artificial stone by using a vibrator (Vibrator) to remove the air bubbles contained in the raw material at the same time the specific gravity of the chip is sinking to the lower portion of the natural stone exposed to the surface (the rate at which the chip is exposed to the surface) It is desirable to maximize.

In the present invention, it is preferable to use a brush in the polishing step of the artificial stone in consideration of defects such as dropping of unevenness, and the brush may be made of synthetic resin or abrasive metal containing abrasive stone particles, and especially used for repairing natural stone on the market. A polishing brush may be used, wherein the resin color of the brush is preferably not transferred to the product during the polishing process.

In the present invention, the brush can be variously adjusted according to the strength and shape and depth of the formed concave-convex, it is not possible if the material is strong enough to give a defect, such as dropping of the concave-convex formed on the surface of the artificial stone.

In addition, according to the present invention, after manufacturing a mold having an unevenness, the chip is blended with artificial stone raw materials, the artificial stone raw material containing the chips is put into a mold and then molded, and then the cured artificial stone is cured and demolded, and then the irregularities are formed on the surface. The artificial stone is formed by polishing the formed artificial stone, and the surface is provided with an uneven surface having an uneven function to provide an artificial stone.

In order to maximize the non-slip effect in the present invention, the depth of the irregularities formed on the surface of the artificial stone is preferably 1 to 3 mm, the width is 0.5 to 2 mm, the spacing is 2 to 5 mm. In the non-slip test, water is sprayed on the surface, which prevents the formation of water film on the surface of the product. In the present invention, referring to the sole shape of a general shoe (sneakers, shoes, etc.), it is possible to maximize the friction when forming the irregularities in the shape opposite to the shoe sole.

For natural natural stone appearance in the present invention, the attendance of the chip is preferably 65 to 95%, in particular 80 to 90%.

Artificial stone in the present invention is used as a building exterior material or interior material, it may be a cement artificial stone, or a resin artificial stone such as acrylic resin, unsaturated polyester resin, epoxy resin.

In the present invention, in the manufacture of artificial stone, by mixing various chips at a certain ratio and maximizing the attendance rate of the surface of the artificial stone using a vibrator, it is possible to express a more differentiated appearance closer to natural stone, and at the same time to form irregularities on the surface and the irregularities formed The non-slip function is given by polishing the surface to have a non-slip function, thereby providing a beautiful appearance to the user and providing a non-slip function, thereby improving the reliability of the product.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a manufacturing process diagram of the artificial stone according to the present invention, the manufacturing process is the raw material weighing and input, dry mixing, wet, mixing, mold making with irregularities, mold input, vibrator molding, curing, surface processing, cutting, inspection and packaging steps It consists of.

First, the mold in which the unevenness | corrugation was formed is produced.

The mold used for artificial stone molding is manufactured to have an arbitrary design in an intaglio and / or embossment in advance so that irregularities can be formed on the artificial stone surface.

It is preferable that the depth of the irregularities formed in the mold is 1 to 3 mm, the width is 0.5 to 2 mm, and the interval is 2 to 5 mm so as to correspond to the irregularities formed on the surface of the artificial stone.

The mold may be a thermoplastic resin such as polyvinyl chloride (PVC) or acrylonitrile butadiene styrene (ABS); Thermosetting resins such as epoxy, unsaturated polyester (UPE), urethane; Metal materials such as iron, aluminum, stainless steel, and the like; It may be made of a material such as clay or ocher, and any material that can be sculpted or molded into any intaglio and / or embossed may be used.

The mold must be able to withstand the molding process and curing process of the artificial stone, so ABS is preferred as the material.

Next, two or more kinds of chips having different particle size distributions are manufactured.

As chips, resin chips such as acrylic (PMMA), glass chips, colored glass chips, natural stone chips obtained by pulverizing natural stones, and colored natural stone chips made by coloring the pulverized natural stones can be used. In addition, the colored chip is preferably manufactured in two or more colors for various appearance.

In particular, the chips are made of two or more kinds in particle size, specifically, 3 to 9 mm for the large chip and 1 to 3 mm for the small chip, and the ratio is 7: 3 to 6: 1. It is desirable to mix at a higher rate than the chips.

Next, the chip produced above is blended with the artificial stone raw material.

Base Binder Paste may be a resin (acrylic or the like) or cement paste used for manufacturing ordinary artificial stone, and may be selected in various colors according to a user's taste.

In the case of cement paste, for example, 100 to 3 parts by weight of cement, 170 to 250 parts by weight of 3 to 9 mm of natural stone chips (large chips), 70 to 100 parts by weight of 1 to 3 mm of natural stone chips (small chips), natural stone powder ( 100 to 350 mesh) 30 to 100 parts by weight, 25 to 35 parts by weight of water, may be composed of 1 to 3 parts by weight of the water reducing material.

The color and design of the artificial stone can be made of various products according to the taste of the user.

Next, the artificial stone material in which the chip is blended is put into the mold having the unevenness, and then the artificial stone is molded while vibrating using a vibrator (vibrator).

The vibrator removes air bubbles contained in the artificial stone material and at the same time sinks a heavy chip into the bottom of the mold to maximize the attendance rate of natural stone exposed to the surface. That is, by increasing the exposure frequency of the chip on the surface it can form a more natural appearance.

The attendance rate is only about 50% when the vibrator is not used, but when using the vibrator, the attendance rate is increased by at least 65%, as much as 95%, usually 80 to 90%.

The vibration is preferably applied for 1 to 10 minutes at least 3,000 rpm or more.

When looking at the effects of vibration, first of all, when using two chips of different sizes, first, the larger chips sink to the bottom of the mold due to the vibration, and there is a space between the larger chips. The space between them becomes larger, and by filling the space with small chips, the bottom of the mold is filled tightly with the chip, so the attendance rate of natural stone can be increased.

In the press method, unlike the effect of applying vibration, the chip and the cement paste are simply pressed, thereby limiting the attendance rate of the chip.

Finally, after curing and demolding the molded artificial stone, the surface is polished to form irregularities on the surface to complete the artificial stone having various appearance designs.

Curing is carried out for at least 10 hours at a temperature of 40 to 50 ° C. and a condition of keeping humidity.

When polishing the surface of the artificial stone, it is not possible to use a conventional artificial stone or a natural stone polishing tool, and it is preferable to use a brush-type polishing tool containing abrasive stone particles. In the case of using a conventional abrasive stone, not only the surface irregularities are ground, but also the non-slip function, which is a natural purpose, cannot be imparted.

The brush used for polishing the artificial stone surface may be made of a synthetic resin material prepared to contain abrasive stone particles, or may be made of a metal material such as iron. In particular, it is possible to use a polishing brush used for repairing natural stones on the market, wherein it is preferable that the resin color of the brush does not transfer to the product during the polishing process.

The brush may be variously adjusted according to the strength and shape and depth of the formed convex-concave, but if the material is strong enough to give a defect, such as the fall of the concave-convex formed on the surface of the artificial stone.

The design of the non-slip function of the non-slip function applied to the artificial stone can be variously selected according to the user's taste, and the type of natural stone chips used in the cement paste can be variously selected.

Figure 2 is a planar photograph of a conventional artificial stone, there is no surface irregularities to provide a non-slip function.

3 is a planar photograph of the artificial stone according to the present invention, Figure 4 is a cross-sectional photograph, irregularities are formed on the surface to provide a non-slip function.

[Example]

Cement artificial stone was manufactured using natural stone chips.

First, a mold with irregularities was produced using ABS. The unevenness was formed at a depth of 2 mm, a width of 2 mm, and a gap of 2 mm.

Next, the cement paste used as the artificial stone binder was put into the mold. At this time, the cement paste used is 210 parts by weight of natural stone chips (large chips) of 3 to 9 mm, 85 parts by weight of natural stone chips (small chips) of 1 to 3 mm, 100 parts by weight of cement (100 to 350 mesh) 65 parts by weight of water, 30 parts by weight of water, 2 parts by weight of the water reducing material.

Next, the cement paste is placed in the mold and vibrated at 3,000 rpm for 5 minutes to remove bubbles in the cement paste, while the natural stone chips are settled to the bottom of the mold to maximize the attendance rate. Cured for 12 hours under conditions maintained.

Next, after curing is completed, the uneven artificial stone is removed from the mold, and the back surface of the artificial stone is ground to a predetermined thickness using a conventional abrasive stone to adjust the level and thickness, and then a commercially available polishing brush (abrasive powder-containing synthetic resin brush) After polishing the surface in the range that does not harm the unevenness formed on the surface of the artificial stone using a), the artificial stone of 400mmL x 400mmW x 17mmT was obtained through a cutting process.

[Comparative Example]

In the same manner as in Example, a mold having no unevenness was used to form unevenness on the surface and no vibrator was used.

[Test Example]

The attendance rate and the non-slip property of the flooring material of Examples and Comparative Examples were measured, and the results are shown in Table 1.

Example Comparative example Attendance rate 80-90% 50-60% Non-slipness (friction coefficient) 0.6 0.3

As can be seen from Table 1, in the case of Examples, irregularities were formed on the surface, and the vibrator was used while mixing small chips and large chips, and the attendance rate and the non-slip properties were superior to those of the comparative examples.

1 is a manufacturing process of the artificial stone according to the present invention.

2 is a plane photograph of a conventional artificial stone.

3 is a plan view of the artificial stone according to the present invention.

Figure 4 is a cross-sectional picture of the artificial stone according to the present invention.

Claims (9)

Manufacturing a mold having irregularities formed thereon; Blending the chip with the artificial stone raw material; Molding the artificial stone material blended with chips into a mold and then molding the chip; And Curing the molded artificial stone and demolding and polishing the artificial stone having the uneven surface formed thereon; The method of manufacturing artificial stone having the attendance rate of the chip 60 to 95%. The method of claim 1, wherein the mold is made of thermoplastic resin, thermosetting resin, metal, clay or loess. The artificial stone according to claim 1, wherein in the forming step, a vibrator is used to remove bubbles contained in the artificial raw material, and at the same time, a large specific chip is settled downward to maximize the attendance rate of the natural stone exposed to the surface. Manufacturing method. The method of manufacturing artificial stone according to claim 1, wherein a brush is used in the polishing step. The method for producing artificial stone according to claim 4, wherein the brush is made of a synthetic resin containing abrasive stone particles. The method of manufacturing artificial stone according to claim 4, wherein the brush is made of metal. After manufacturing the mold with concavo-convex, the chip is blended with the artificial stone material, the artificial stone material with the chip is put into the mold, and then molded. Characterized in that to be manufactured, An artificial stone, comprising a chip, having a non-slip function by forming irregularities on a surface of which the attendance rate of the chip is 60 to 95%. The artificial stone according to claim 7, wherein the depth of the unevenness is 1 to 3 mm, the width is 0.5 to 2 mm, and the spacing is 2 to 5 mm. delete

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