JPH07100991A - Manufacture of decorative material with natural stone pattern - Google Patents

Abstract

PURPOSE:To provide flakelike optical brightness indicated by a crystalline part peculiar for a natural stone with solid external drape of the stone. CONSTITUTION:Spraying material 2 containing synthetic resin emulsion and two or more colored aggregate 21 in a base material 1 and having high viscosity is sprayed by a spray gun 3 to form a coating film 4 of an uneven pattern of a large step. Before the coated spraying material is dried, one or two or more colored mica thin pieces 11 are scattered fixedly on its surface, and after it is dried, tops of protrusions of the pattern are ground by a sander 5 to be flatly cut. Then, a topcoat 9 of transparent paint 7 is formed by a paint gun 6 on an entire surface thereby to obtain a decorative material having solid external drape of natural stone having multicolored pattern cast pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a decorative material having a rich and deep natural stone-like multicolored composite pattern for decoration of interior and exterior walls or floors of a building.

[0002]

2. Description of the Related Art A spraying material containing a synthetic resin emulsion and a marble powder or other colored aggregate is sprayed onto a woven cloth or other suitable relatively coarse synthetic fiber fabric or an appropriate solid base material by an appropriate method. The decorative material coated with a natural stone-like pattern is used as a sheet for finishing the surface of a building such as for decorating the interior / exterior wall surface or floor surface of a building. (JP-A-4-
No. 76151, JP-A-3-279561) Various types are formed by forming a concavo-convex pattern on a vertical wall surface using a synthetic resin emulsion and a colored aggregate, and cutting the apex of the convex portion after drying to expose the cross section of the colored aggregate. A finishing method for expressing a natural stone pattern is also known. (Japanese Patent Laid-Open No. 57-2717
(No. 7)

[0003]

These conventional products are also wall surface finishing methods having an appearance texture close to that of natural stone, but when the natural stone peculiar to natural stone is cracked, the peculiar scales exhibited by the crystal part developed on the cleaved surface are obtained. There is no luster of the shape, the heavyness of the stone,
I couldn't express the depth enough.

The present invention solves these problems of the conventional products, has the appearance texture of natural stone, and has the scale-like brilliance of the crystal part peculiar to natural stone, and is a plate surface finishing material for buildings. It is an object of the present invention to provide a method for producing a decorative material having a natural stone pattern that is useful for objects and the like.

[0005]

In order to solve the above problems, the present invention has the following constitution. (1) A high-viscosity spray material containing a synthetic resin emulsion and aggregates of two or more colors is applied to the surface of a base material to form an uneven pattern with large steps, and before the spray material is dried. Mica flakes of one color or two or more colors are sprinkled and fixed onto the surface of the coated surface with the coating surface facing substantially upward, and after drying, the top of the convex portion is cut flat to expose the cross section of the colored aggregate, Next, a method for producing a decorative material having a natural stone pattern, characterized in that the entire surface is finished with a transparent top coat.

(2) The surface of the base material is coated with a high-viscosity spraying material containing a synthetic resin emulsion and aggregates of two or more colors to form an uneven pattern with large steps, and then the aggregates of different colors are used. A low-viscosity spray material composed of a toned synthetic resin emulsion is applied thinly on the whole, and the surface to be applied is substantially upward before drying the applied low-viscosity spray material. Apply mica flakes of two or more colors and fix them firmly. After drying, cut the tops of the convex parts to a flat surface to expose the high viscosity spray material layer cross section and the colored aggregate cross section, and then coat the entire surface with a transparent top coat. A method for producing a decorative material having a natural stone pattern characterized by finishing.

(3) The natural stone according to item (2), wherein a high-viscosity spraying material covers a part of the surface of the base material and a low-viscosity spraying material covers the entire surface of the base material. A method for manufacturing a decorative material having a pattern.

(4) The method for producing a decorative material having a natural stone pattern according to any of (1) to (3), wherein the size of the mica flakes is 0.1 mm or more. (5) The ratio of the area occupied by the entire slice of mica is 5 to 90.
%, The method for producing a decorative material having a natural stone pattern according to any one of the items (1) to (3).

(6) The natural stone pattern according to any one of items (1) to (3), wherein the aggregate is an aggregate selected from the group consisting of marble powder, granite powder, colored silica sand, and colored ceramic powder. A method for producing a decorative material having a.

(7) The method for producing a decorative material having a natural stone pattern according to any of (1) to (3) above, wherein the synthetic resin emulsion is an acrylic resin emulsion.

[0011]

[Action]

(1) According to the method for producing a decorative material having a natural stone pattern according to the item (1) of the present invention, a high-viscosity synthetic resin emulsion and two or more color aggregates are contained on the surface of a base material. A spray material is applied to form a concavo-convex pattern having a large level difference, and before the spray material applied is dried, the coated surface is directed substantially upward and one or more mica flakes of one or more colors are further applied on the surface. By spray-fixing the mica, the mica flakes are spray-fixed in a uniform dispersed state on almost the entire surface of the layer of the high-viscosity spraying material. Like the interior and exterior of the building, spraying a large flaky shape such as mica flakes against a vertical surface is difficult to attach, but in the present invention, at least in the step of spraying and fixing the mica flakes, Since the applied surface is placed in a state in which the applied surface is directed substantially upward before the applied spray material is dried, the mica flakes can be sprayed and fixed onto the surface of the high-viscosity spray material layer relatively easily. Next, this mica flakes are sprayed and fixed, and after drying the spray material, the tops of the convex parts are cut flat to expose the cross section of the colored aggregate, and the entire surface is finished with a transparent top coat. Since the aggregate cross section is exposed, natural stone-like patterns of various color layers appear on the cut surface, and the part where mica flakes are scattered and fixed remains in the recess left uncut, and this part is unique to natural stone By effectively exhibiting the scaly glittering property indicated by the crystal part, a decorative material having a thickness and a depth closer to that of natural stone can be manufactured by the composite pattern of the both. Incidentally, in the present invention, since the mica flakes are separately sprayed in the specific step without being mixed with other aggregates, the mica flakes are destroyed when mixed and used at the same time with other aggregates. It does not cause defects such as scratching or loss of surface luster.

(2) Further, a high-viscosity spraying material containing a synthetic resin emulsion and aggregates of two or more colors is applied to the surface of the base material to form an uneven pattern with large steps, and then a bone of a different color is formed. A low-viscosity spraying material consisting of a synthetic resin emulsion toned by a material is applied thinly on the whole, and the surface of the sprayed low-viscosity spraying material is further faced upward before drying. Mica flakes of 1 or 2 or more colors are sprinkled and fixed on, and after drying, the top of the convex portion is cut flat to expose the cross section of the high viscosity spray material layer and the cross section of the colored aggregate, and then the entire surface is transparent. By finishing with a coat, an uneven pattern with a large step made of a high-viscosity spraying material is formed, and then the low-viscosity spraying material is applied thinly overall, so that the high Viscosity spray material layer and low The sprayed material layer has a two-layer structure, and the mica flakes are sprayed and fixed, and then the top of the convex portion is cut flat, so that the flatly cut portion has a cross section of the colored aggregate of the high-viscosity sprayed material layer. The peripheral edge of the exposed portion becomes a natural stone-like multicolored composite pattern of various color layers surrounded by the exposed portion of the colored aggregate section of the low-viscosity spraying material layer, leaving a recess left uncut. The part to which the mica flakes are sprayed and fixed remains, and this part effectively exhibits the scaly glittering characteristic of the crystal part peculiar to natural stone, and due to the composite pattern of both, it is slightly different from the first invention. Natural stone patterns with different unique patterns are developed, and it is possible to manufacture a decorative material having a heaviness and a depth closer to those of natural stone. Also in the present invention, as in the first aspect, the mica flakes are separately sprayed in the specific step without being mixed with other aggregates. However, there is no defect that the mica flakes are broken or the surface luster is lost.

(3) In the invention of the second method for producing a decorative material, a part of the surface of the base material is covered with a high-viscosity spraying material, and a surface of the base material is covered with a low-viscosity spraying material. By adopting the method of hiding the entire surface, the same operation as that of the second invention is exhibited.

(4) The size of the mica flakes is 0.1.
With a preferred embodiment of the present invention of mm or more, it is possible to more effectively exhibit the scaly glittering characteristic of the natural stone-specific crystal portion of the mica flakes.

(5) Further, by adopting a preferred embodiment of the present invention in which the proportion of the area occupied by the entire portion of the mica flakes is 5 to 90%, it is possible to more effectively manifest the weight and depth closer to natural stone. The material can be manufactured. That is, if the proportion of the area occupied by the entire portion of the mica flakes is less than 5%, the effect of using the mica flakes is less likely to be exhibited sufficiently, so it is preferably at least 5%.
If it is more than 0%, the texture tends to be slightly monotonous, so 9
It is preferably 0% or less.

(6) Aggregate selected from the group consisting of marble powder, granite powder, colored silica sand, and colored ceramics powder provides a profound texture that is the same as natural stone by adopting the preferred embodiment of the present invention. It can be expressed more easily.

(7) When the synthetic resin emulsion is an emulsion of an acrylic resin in a preferred embodiment of the present invention, even if it is used as a sheet for finishing a building surface such as an interior / exterior wall surface or floor surface of a building, it is weather resistant. It is possible to provide a method for producing a decorative material having a natural stone pattern, which has excellent properties, water resistance, adhesiveness, flexibility and the like, has good durability, withstands long-term use, and is easy to process and construct.

[0018]

EXAMPLES In the present invention, the base material is not particularly limited as long as it can be applied with a spray material containing a synthetic resin emulsion and an aggregate, and for example, a surface finish of a building of this type which has been conventionally used. The base material and the like used in the production of the use sheet can be similarly used. Specifically, for example, a synthetic fibrous woven fabric, more preferably a relatively coarse synthetic fibrous woven fabric, for example, gauze made of acrylic fibers or polyester fibers having little or no water absorption, or woven to a degree greater than that. Preferred are those made of acrylic fiber and polyester fiber, and particularly preferred are ginseng and the like. A woven fabric having no or almost no water absorption is preferable. A woven fabric having a large water absorption tends to expand due to moisture and tend to shrink during drying, and the product after drying may be warped or deformed. Such a problem does not occur when a non-woven fabric or a non-woven fabric is used, which is preferable. Examples of the base material other than the woven fabric include concrete panel extrusion molded cement board, gypsum board, silica board (calcium silicate board), metal plate, metal wire mesh, expanded metal, rubber sheet, synthetic resin sheet and the like.

As the synthetic resin emulsion constituting the spraying material, for example, a synthetic resin emulsion satisfying weather resistance, alkali resistance, water resistance, adhesiveness, flexibility and water absorption resistance is preferable. -Including urethane resin emulsion), vinyl acetate resin emulsion, vinyl chloride resin emulsion, urethane resin emulsion and the like. Of these, acrylic resin emulsions are particularly superior in terms of weather resistance, and are preferred because they have long-term durability when used as a sheet for finishing building surfaces such as interior / exterior wall surfaces or floor surfaces of buildings.

As the aggregate, an inorganic material such as marble powder, granite powder or other natural stone powder, colored silica sand, colored ceramic powder (colored or colored means to include white) is preferably used. The size of the aggregate is not particularly limited, but a size (major axis) of about 0.01 mm to 2 mm is preferably used.

The high-viscosity spraying material has a solid content of 40 to 6 with respect to a total of 100 parts by weight of aggregates of two or more colors.
15 to 25 parts by weight of a synthetic resin emulsion of about 0% by weight, and if necessary, a film-forming aid, a thickener, a defoaming agent, etc. are added, and the pH is adjusted to around 9 to 10 to adjust to a high viscosity. Can be obtained. As the thickener, for example, a methylcellulose-based one (for example, “High Metroze 9
0SH-30000 ", manufactured by Shin-Etsu Chemical Co., Ltd., and as a film forming aid, for example, butyl carbitol acetate,
As the defoaming agent, for example, "Nopcosanto NXZ" (manufactured by San Nopcosan Co., Ltd.) and the like, and concentrated ammonia water and the like are preferably used as the pH adjusting agent, but the defoaming agent is not limited thereto. The viscosity is also not particularly limited, but when a highly viscous spray material is applied to the surface of the base material by spraying or another method to form an uneven pattern with large steps, the uneven pattern easily disappears. There is no particular limitation as long as it has a viscosity that does not include, for example, 17
The thing of about 0 to 190 poise is used.

The low-viscosity spraying material is mainly different from the high-viscosity spraying material in that the amount of a medium such as water to be added is adjusted to a low viscosity or the kind of the aggregate is changed. In other respects, substantially the same kind of raw material as the high-viscosity spray material is used. As for the aggregate, it is necessary to use an aggregate having at least one different color from the aggregate used when adjusting the high-viscosity spraying material, and it is not always necessary to mix two or more colors of aggregate. Alternatively, one-color aggregate may be used in the case of a low-viscosity spray material. The viscosity is also not particularly limited, but when applied on a high-viscosity spraying material, it is possible to form a coating film with a substantially uniform thickness along the uneven pattern with a large level difference and to reproduce the original level difference. The viscosity may be used, and it is not particularly limited, but for example, 90 to 10
Something about 0 poise is used.

The mica flakes have a size (major axis) of 0.
It is preferably 1 mm or more, and when it is too small, it becomes difficult to sufficiently exhibit the above-mentioned function using the mica flakes. In addition, those that are usually easily available are up to 10.
It is about 0 mm. As the mica flakes, crushed natural products such as muscovite, phlogopite, biotite or colored products thereof are used, and they have pearly or metallic luster. These sizes may be changed depending on the texture to be expressed. For example, when a granite-like texture is desired to be produced, for example, those having a size of about 2 to 3 mm are mainly used, or a texture in which larger crystals are present. When it is desired to express, a larger size of mica flakes, for example, 4 to 10 mm, may be used.

The mica flakes are sprayed and fixed by spraying and fixing one or more colors of mica flakes on the surface of the sprayed material before drying. Mica flakes can be transparent because of their unique luster. To spray mica flakes, apply a high-viscosity spraying material or a low-viscosity spraying material on top of the base material and place it with the surface with an uneven pattern with large steps facing almost upward. Done. A state in which the mica flakes are almost always upward does not necessarily have to be horizontal, and when the mica flakes are sprayed and adhered to the surface of the spray material when the mica flakes are sprayed, the mica flakes have an angle of, for example, about 60 degrees from the horizontal. However, when the mica flakes are sprayed, the inclination of efficiently adhering to and supplementing the undried spray material is naturally included in the gist of the invention, and is not a completely horizontal surface. In the present invention, such a case is also included in the category of the state in which the surface faces substantially upward. However, like the interior and exterior of the wall surface of a building, which is often done in this type of building surface finishing sheet, a large thin piece with a shape like a mica thin piece is blown against a vertical surface that has been sprayed on the wall surface in advance. It is not preferable to attach it because it is difficult to attach and the loss is large.

After drying the sprayed material with unevenness having steps with mica flakes scattered and fixed, the top of the projection is cut flat by using a sander or the like to expose the cross section of the colored aggregate. Since the colored aggregate cross-section is exposed in the flatly cut part in this way, natural stone-like patterns of various color layers appeared on the cut surface, and mica flakes were scattered and fixed in the recesses left uncut. The part remains, and this part effectively develops the scaly glittering characteristic of the crystalline part peculiar to natural stone, so that the composite pattern of the both allows the production of a decorative material having a heaviness and depth closer to that of natural stone. . Further, when the above-mentioned spraying material has a high-viscosity spraying material layer and a low-viscosity spraying material layer, a flatly cut portion is a portion where the colored aggregate cross section of the high-viscosity spraying material layer is exposed. A natural stone-like multicolored composite pattern of various color layers in which the peripheral edge portion is surrounded by the exposed portion of the colored aggregate section of the low-viscosity spraying material layer,
In the recess left uncut, a part where mica flakes are scattered and fixed remains, and this part effectively develops the scaly glittering characteristic of the crystal part peculiar to natural stone, resulting in a composite pattern of both. A natural stone pattern having a unique pattern slightly different from the case of only the above-mentioned high-viscosity spray material layer is developed, and it is possible to manufacture a decorative material having a heaviness and a depth closer to those of natural stone.

Thus, a transparent top coat is further applied on this, and the top coat resin used for the top coat is acrylic-silicone resin or acrylic-
Ordinary resins such as a urethane resin and a fluororesin, which are transparent top coat resins used in the production of this type of building surface finishing sheet, may be used. The application of the top coat resin is carried out for the purpose of protecting the mica flakes sprayed and fixed in the recesses and preventing them from falling off, as well as imparting functions such as antifouling, waterproofing, and gloss. The top coat resin may be applied after being applied to the wall surface or floor surface of a building.

The present invention will be further described below with reference to the drawings. FIG. 1 is a process sectional view showing a process of one manufacturing method of the present invention. As shown in FIG. 1A, an appropriate base material 1
Is sprayed on the entire surface of the base material 1 by a spray gun 3 with a highly viscous spray material 2 containing an appropriate synthetic resin emulsion such as an acrylic resin emulsion and two or more color aggregates 21 or not shown. Is a base material 1 using an appropriate iron etc.
By coating the spraying material on the top, a coating film 4 having an uneven pattern with a large step is formed. Then, as shown in FIG. After the mica flakes 22 of one color or two or more colors are sprinkled and fixed on the surface in a state of facing upward, after drying, FIG.
As shown in (c), the tops of the convex portions of the concave-convex pattern are ground by a sander 5 and cut flat, and then, as shown in FIG.
As shown in (d), a transparent top coat 9 is formed on the entire surface by using a transparent paint 7 with a paint gun 6 to provide a decorative material having a natural stone appearance with a multicolored cast pattern. obtain. Incidentally, reference numeral 8 in FIG. 1 denotes a cut surface of the convex portion.

Thus, in the surface of the obtained decorative material, the cut surface 8 shows cross sections of aggregates 21 of various hues (including achromatic colors), and the concave portion 10 has mica flakes 22.
As a result, a decorative material with a heavy texture and a natural stone pattern, which has a scaly glittering characteristic of the crystalline portion peculiar to natural stone, is obtained. In the decorative finishing material obtained as described above, the cut surface is based on the color of the matrix aggregate, and the concave portion adds scale-like glitter to the matrix aggregate to ferment the luxury and texture more than natural stone.

Various textures can be produced by changing the proportion of the entire cut surface. The proportion of the cut is about 10 to 95% in terms of the apparent area when it is assumed to be a plane viewed from above. When the ratio of the cut surface is 95% or more, it becomes like a polishing stone and the effect of sprinkling mica flakes becomes weak. If it is less than 10%, the entire surface will be covered with mica, and the effect of the aggregate will be diminished. That is, it is preferable that the ratio of the mica flakes scattered surface occupying the whole is about 5 to 90%.

When the above-mentioned synthetic fiber woven fabric (eg, gauze) is used as the base material, a spray material prepared by mixing an aggregate with a synthetic resin emulsion is usually formed into a sheet before solidification ( To form a sheet, for example, there is a method in which a peelable sheet such as a polyethylene film placed flat is placed, and the sheet-shaped spray material before solidification is placed thereon. Next, a synthetic fiber woven fabric is placed on the surface of the sheet-shaped spray material. In order to improve the bondability, it is preferable to press it with a roller or the like as necessary. In this way, the above-mentioned steps of the present invention are sequentially performed, for example, by spraying a high-viscosity spraying material or trowel coating on it to form the uneven pattern having a large step of the present invention. Is preferred.

Next, FIG. 2 is a process sectional view showing another manufacturing method of the present invention. First, as shown in FIG. 2 (a), an appropriate base material 1 was made to contain an appropriate synthetic resin emulsion such as an acrylic resin emulsion and two or more color aggregates 21 in the same manner as in FIG. 1 (a). Highly viscous spray material 2 spray gun 3
To cover the part of the base material 1 on the surface of the base material 1 by spraying so that the remaining base material surface is not covered, or by using an appropriate trowel or the like (not shown) in the same manner. By coating the spraying material on the top, a coating film 4 having an uneven pattern with a large step is formed, and then, as shown in FIG. 2 (b),
The above-mentioned low-viscosity spraying material 11 containing a synthetic resin emulsion and an appropriate aggregate is sprayed onto the entire surface from above.
2 is applied thinly on the whole to form the top coat film 13. Then, as shown in FIG. 2 (c), before the applied top coat film 13 is dried, one or more mica flakes 22 of one or more colors are formed on the surface of the top coat film 13 in a state in which the above coat film 13 is oriented substantially upward. After spraying and fixing, and after drying, as shown in FIG. 1 (d), the tops of the convex portions of the concavo-convex pattern are ground by a sander 5 to be cut flat, and then as shown in FIG. A transparent top coat 9 is formed on the entire surface by using a transparent paint 7 according to No. 6, and a decorative material having a natural stone appearance with a multicolor pattern cast pattern is obtained. In addition, 8'in FIG. 1 has shown the cut surface of a convex part. Also,
In this figure, as shown in FIG. 2 (a), a coating of an uneven pattern with a large step made of the high-viscosity spraying material is provided so as to cover a part of the base material 1 and not cover the remaining base material surface. Although the film 4 is formed, the coating film 4 having an uneven pattern with large steps may be formed on the entire surface of the base material as in the case of FIG.

Thus, in the surface of the obtained decorative material, cut surfaces 8'show cross sections of aggregates 21 of various hues (including achromatic colors), and the peripheral edge of the cut surface 8'has the low viscosity. Since the colored aggregate cross section of the spray material layer is surrounded by the exposed portion, a natural stone-like multicolored composite pattern of various color layers is formed, and since the mica thin piece 22 is fixed to the concave portion 10, (EN) A decorative material with a profound texture, which has a natural stone pattern and has a scaly glittering characteristic of a crystal part peculiar to natural stone. The cut surface of the decorative finishing material obtained as described above is based on the color of the matrix aggregate, and the peripheral edge of the cut surface 8'exposes the colored aggregate cross section of the low-viscosity spray material layer to expose the cross section of FIG. A natural stone pattern with a unique pattern, which is slightly different from the example, appears, and the recesses add scale-like luster to the matrix aggregate, and can ferment the luxury and texture more than natural stone.

The present invention will be further described below with reference to more specific examples, but the present invention is not limited to these examples. Example 1 20 parts of acrylic resin emulsion having a solid content of 50% by weight (parts by weight, the same applies hereinafter), 50 parts of marble powder of 6 to 200 mesh, 10 parts of granite powder of 40 to 200 mesh, 6 to 40 mesh as aggregate. White ceramic powder 10 parts, 20
~ 40 mesh black colored silica sand 30 parts and a concentration of 3% "High Metroses 90SH-3000"
0 "(manufactured by Shin-Etsu Chemical Co., Ltd.) 7.5 parts," Nopco Santo NXZ "(manufactured by San Nopco Co., Ltd.) as an antifoaming agent
0.02 parts and 0.2 parts of concentrated aqueous ammonia were mixed to obtain p
A highly viscous spray material having a viscosity of 180 poise at H9.5 is obtained.

This high-viscosity spray material was laid horizontally on a plane with a spray gun having a diameter of 10 mm, and the size was 60 cm × 60.
4.5-5.5 kg / m for cm extruded cement board
Spray so that it becomes ² to form a thin film with a large uneven surface and uneven surface, and completely hide the cement board that is the base.

Before the sprayed material solidifies, 0.2 to 0.5 kg / m ² of 4 to 20 mesh colorless and transparent mica flakes are applied.
As a whole, it is sprayed uniformly and adhered to the surface of the spray material.
After this coating film was dried and cured for 24 to 48 hours, the tops of the convex portions of the coating film were ground and cut with a sander so that the cut surface occupied about 60% of the whole. Then, after removing dust and other dust by grinding the sander, a transparent acrylic-silicone resin paint is applied twice using a paint gun with a 1.0 mm diameter to obtain a uniform 0.2 to 0.3 kg / m ^2. It was applied and finished. The finished product has a gorgeous natural stone pattern with a glittering granite appearance.

Example 2 Size 90 cm × 180 cm × 15 cm in which a high-viscosity spraying material made of the same material as in Example 1 was used and stood at an inclination of 60 degrees
PC board (precast concrete board) of 4.0 to 5.0 kg / so as to cover about 90% of its surface area
A coating film having an uneven pattern with large steps is formed with a required amount of m ² .

After drying this coating film for 3 hours, 20 parts of an acrylic resin emulsion having a solid content of 50% by weight (minimum film forming temperature: 3 ° C.), 40 parts of marble powder of 20 to 100 mesh as an aggregate, 10 parts of 40-60 mesh granite powder, 40-60 mesh pale yellow ceramic powder 10
Parts, 40 parts of 30-100 mesh brown-colored silica sand, and 7.5 parts of 3% concentration of "High Metroses 90SH-30000" (manufactured by Shin-Etsu Chemical Co., Ltd.) as a defoaming agent. "Nopco Santo NXZ"
P (obtained by adding and mixing 0.02 parts (manufactured by San Nopco Ltd.), 0.2 parts ammonia water, and 10 parts tap water.
A low-viscosity sprayed material with a viscosity of 90 poises in H9, diameter 4 mm
1.0 ~ 1.5kg / m by one application with the spray gun
Apply evenly over the entire surface to achieve ² .

Subsequently, the major axis of the size is 0.5 to 4.0 mm.
Biotite and muscovite having a major axis of 0.5 to 4.0 mm are mixed at a ratio of 1: 1 (weight ratio) to give a mica thin piece of 1.0 to 0.
About 3 kg / m ^{2 is} sprayed and sprayed uniformly over the entire surface, and the sprayed material having a low viscosity is applied to the surface of the coating film.

After drying this coating for 24-48 hours,
The top of the convex portion was ground by a sander so that the cut surface occupies about 30% of the whole, and cut flat. Further, a transparent acrylic-silicone resin paint (trade name: "Neosilica # 100" manufactured by Isamu Paint Co., Ltd.) is applied by the same method as in Example 1 to a finish of 0.2 to 0.3 kg / m ² for finishing. It was

It was possible to obtain a decorative surface having a solid appearance and texture of natural stone which cannot be obtained by the conventional spraying method in which crystals are accumulated in the recesses.

[0041]

According to the first production method of the present invention, a building surface finishing plate having a solid appearance texture of natural stone and having a scaly glittering characteristic of the crystal portion peculiar to natural stone It is possible to provide a method for producing a decorative material having a natural stone pattern, which is useful for objects and the like.

According to the second manufacturing method of the present invention, the flatly cut portion is the colored portion of the high-viscosity spraying material layer, and the peripheral edge of the portion where the cross section of the aggregate is exposed is the coloring of the low-viscosity spraying material layer. It becomes a natural stone-like multicolored composite pattern of various color layers surrounded by the exposed section of the aggregate, and the mica flakes are scattered and fixed in the recesses left uncut, showing the crystal part peculiar to natural stone By effectively exhibiting scaly glittering properties, a natural stone pattern of a unique pattern slightly different from that of the first invention is developed due to the composite pattern of the both, and is applied to a building surface finishing plate etc. It is possible to provide a method for producing a decorative material having useful natural stone-like weight and depth.

In the invention of the second method for producing a decorative material, a high viscosity spray material covers a part of the surface of the base material, and a low viscosity spray material covers the entire surface of the base material. By adopting the method described above, it is possible to provide a method for producing a decorative material having the same effect as the second invention.

Further, by adopting a preferred embodiment of the present invention in which the size of the mica flakes is 0.1 mm or more, it is possible to more effectively exhibit the scaly glittering characteristic of the natural stone-specific crystal part of the mica flakes. It is possible to provide a method for producing a decorative material that can be obtained.

Further, by adopting a preferred embodiment of the present invention in which the proportion of the area occupied by the whole mica flakes is 5 to 90%, a decorative material capable of more effectively expressing the solidity and depth closer to natural stone is produced. Can be provided.

Further, by adopting the preferred embodiment of the present invention in which the aggregate is an aggregate selected from the group consisting of marble powder, granite powder, colored silica sand, and colored ceramic powder, a profound texture similar to that of natural stone is obtained. It is possible to provide a method for producing a decorative material that can be easily expressed.

By adopting a preferred embodiment of the present invention in which the synthetic resin emulsion is an acrylic resin emulsion, the weather resistance and flexibility are particularly excellent, and the durability is good and it can withstand long-term use, and can be processed and processed. It is possible to provide a method of manufacturing a decorative material having a natural stone pattern that is easy to apply.

[Brief description of drawings]

FIG. 1 is a process sectional view showing a process of one manufacturing method of the present invention.

FIG. 2 is a process sectional view showing a process of another manufacturing method of the present invention.

[Explanation of symbols]

 1 Base Material 2 Highly Viscous Spraying Material 3 Spraying Gun 4 Uneven Pattern with Large Step 5 Sander 6 Paint Gun 7 Transparent Paint 8, 8'Convex Cut Surface 9 Topcoat 10 Recess 11 Low Viscosity Spraying Material 12 Spray gun 13 Top coat film 21 Aggregate 22 Mica flakes 23 Aggregate

Claims (7)

[Claims] 1. A high-viscosity spray material containing a synthetic resin emulsion and aggregates of two or more colors is applied to the surface of a base material to form an uneven pattern with large steps, and the spray material is dried. Before that, with the coating surface facing upwards, one or two or more colors of mica flakes were sprinkled and fixed on the surface, and after drying, the top of the convex portion was cut flat to expose the cross section of the colored aggregate. And then finishing the entire surface with a transparent top coat, which is a method for producing a decorative material having a natural stone pattern. 2. A high-viscosity spraying material containing a synthetic resin emulsion and aggregates of two or more colors is applied to the surface of a base material to form an uneven pattern having a large step, and then adjusted with different-colored aggregates. A low-viscosity spray material made of colored synthetic resin emulsion is applied thinly on the whole, and one color is further applied to the surface of the applied low-viscosity spray material in a state in which the applied surface is substantially upward before drying. Alternatively, mica flakes of two or more colors are sprinkled and fixed, and after drying, the tops of the convex portions are cut flat to expose the cross section of the high viscosity spray material layer and the cross section of the colored aggregate, and then the entire surface is finished with a transparent top coat. A method for producing a decorative material having a natural stone pattern, which is characterized by the above. 3. The natural stone pattern according to claim 2, wherein a part of the surface of the base material is covered with a high-viscosity spraying material and the entire surface of the base material is covered with a low-viscosity spraying material. Decorative material manufacturing method. 4. The method for producing a decorative material having a natural stone pattern according to claim 1, wherein the size of the mica flakes is 0.1 mm or more. 5. The method for producing a decorative material having a natural stone pattern according to claim 1, wherein the proportion of the area occupied by the whole mica flakes is 5 to 90%. 6. The aggregate is marble powder, granite powder, colored silica sand,
The method for producing a decorative material having a natural stone pattern according to claim 1, which is an aggregate selected from the group consisting of colored ceramic powder. 7. The method for producing a decorative material having a natural stone pattern according to claim 1, wherein the synthetic resin emulsion is an acrylic resin emulsion.