JPH0647866B2 - Cast floor and its manufacturing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cast floor having a laminated structure formed by sequentially casting a plurality of floor materials on a lower ground such as concrete,
More particularly, it relates to a cast floor having a characteristic of forming a multicolor pattern and a method for producing the same.

[Conventional technology]

Generally, synthetic resin floor materials such as long floors, tile floors, and painted floors are used as floor materials for maintaining the cleanliness of the room. Among these synthetic resin-based floor materials, those with a pattern are limited to upholstered floor materials such as long floors and tile floors. This is because the patterned flooring by the dry method can give a uniform and stable pattern by factory production, whereas the on-site coating flooring by the wet method lacks the stability of patterning. .

However, for factory floors and clean room floors that require a higher degree of cleanliness, coating floor materials with excellent seamlessness, high durability, and chemical resistance are widely used, especially cast floor coating floor materials. Since the floor has a single color and becomes monotonous, the appearance of a coated flooring material with a pattern has been desired.

On the other hand, in view of these requirements, a casting floor provided with a pattern is disclosed in, for example, Japanese Patent Publication No. 58-1293 or JP-A No. 58-160472.
The one described in Japanese Patent Publication is known.

In Japanese Patent Publication No. 50-1293, a synthetic resin adhesive 2 is applied onto a concrete surface 1 as shown in FIG. 4, and before the adhesive 2 dries, the surface of the adhesive 2 is colored mica. Piece 3
And dry thoroughly. Then, the transparent resin 4 is applied on the layer of the adhesive 2 and the colored mica piece 3 to form a protective layer, and finally the upper surface of the transparent resin 4 is flattened by grinder.

On the other hand, the one described in JP-A-58-160472 is a synthetic resin which has a smaller specific gravity than a synthetic resin coated flooring material and has a size of 0.5 to 5 mm, which is a flaky piece such as a scale-like membrane strip. It is mixed with the coated floor material. As a result, these flake pieces float on the surface of the coated floor material, and when the coated floor material is applied by casting, the flake pieces are aligned along the flow, so that a uniform patterned floor can be provided. Is.

[Problems to be Solved by the Invention]

By the way, in the case of the former, the pattern becomes a pattern closely adhered to the adhesive 2 due to the method of spraying the mica pieces 3, and uniform polishing cannot be performed. Therefore, not only mottled pattern does not occur, but also the adhesive layer forms a pattern. Irrelevant to. Further, the latter known technique is one in which flake pieces are kneaded and mixed, and when a large number of flake pieces are overlapped, it cannot be removed only by the flow rate of the floor covering by casting, and a uniform mottled pattern is obtained. There are cases where it cannot be.

Furthermore, both do not have a treatment layer for the foundation, the floor material can be cast directly onto the foundation such as concrete, or only a paint-based thin coating floor material is applied, so the performance of the foundation such as concrete can be improved. Because it depends, the pressure resistance is low,
If a load is applied to the floor material, the floor material may be depressed or cracked due to the depression or crack of the base. Further, since structural cracks or the like are likely to occur in the underlying concrete, the cracks also easily cause cracks in the surface layer of the floor material. Also,
Due to the influence of moisture and components contained in the underlayer, swelling and peeling are likely to occur, and the finished surface of the surface layer is inevitably in line with the surface shape of the underlayer, resulting in lack of flatness. .

Therefore, an object of the present invention is to provide a casting floor capable of obtaining a flat surface, less susceptible to the influence of the base, and a uniform pattern, and a method for producing the same.

[Means for Solving the Problems] The present invention is a casting floor formed by casting a floor material on a lower ground such as concrete, which is directly laminated on a substrate,
The surface-finished surface-treated layer and flakes of flakes are sprinkled on the adhesive layer, and after the bonding, a cleaning treatment is applied to form a pattern layer on the surface-treated layer, and on this pattern layer. It is characterized in that it is composed of a transparent resin layer having a surface smoothed by casting a transparent resin.

The present invention also directly laminates a base treatment layer on the lower surface of concrete or the like, finishes the surface thereof flatly, and applies an adhesive to the surface of the base treatment layer. After the flakes are adhered, the flakes are adhered and then subjected to a cleaning treatment to remove the flakes that are unstablely adhered to form a pattern layer, and the transparent resin is cast on the pattern layer at least once. Provided is a method for producing a cast floor, which comprises forming a transparent resin layer by using the above method.

[Action]

According to this configuration, the base treatment layer is directly laminated on the base,
Since the pattern layer and the transparent resin are formed on top of it, both layers are not easily affected by the groundwork. Also, the surface of the groundwork treatment layer is finished flat, so the surface finish is a flat surface along the surface. Can be formed into Further, as described above, since the surface is formed flat, it is possible to uniformly polish when performing general polisher polishing with paper, and therefore, the flakes pieces spread and applied to the adhesive are applied. The polishing treatment can be easily performed, and a uniform mottled pattern can be obtained. In addition, since the pattern layer has few irregularities due to the scouring treatment, if the transparent resin layer has a thickness of, for example, 0.5 mm or more from the adhesive layer, it can be a smooth protective layer on the surface layer. This transparent resin layer guarantees the characteristics of the coated floor material such as the seamlessness of the cast floor, high durability, and high cleanliness.

The above-mentioned floor coating material is obtained by directly laminating a base treatment layer on a base and finishing the surface flat. Next, an adhesive is applied to the surface of the base treatment layer, and a plurality of flaky flakes are scattered before the adhesive hardens, and after the flakes are adhered, unstable flakes are removed by polishing. Form a patterned layer. Finally, it can be manufactured by a simple process of casting a transparent resin on the pattern layer at least once to form a transparent resin layer.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a sectional view showing a laminated structure of a cast floor material.
In the figure, the casting floor 11 is a base treatment layer 13 directly laminated on the upper surface of a foundation layer 12 made of concrete or the like, and an adhesive layer 14 laminated on the upper surface of the foundation treatment layer 13. Flake pieces 15 scattered on the upper surface of the adhesive layer 14
And a transparent resin layer 16 laminated on the upper surface thereof.

As the undercoat layer 13, as shown in FIG. 2, epoxy resin mortar is cast on the upper surface of the underlayer 12 made of concrete. The epoxy resin used was Epicoat 828 (trade name) as the main component, the modified epoxy polyamine was used as the curing agent for the epoxy resin, and silica sand was used as the aggregate. Then, the weight ratio of the resin to the aggregate is set to about 1: 3 to 1:15, and the mixture is mixed and cast as mortar. If there is a pinhole for sucking the adhesive layer 14 to be laminated after casting and curing, the epoxy resin is thixotropically applied and applied to stop the epoxy resin. Further, before further filling, if further flatness is required, the epoxy resin mortar may be cleaned.

After the undercoating layer 13 is formed on the upper surface of the undercoating layer 12 as described above, an adhesive paint is applied to the upper surface of the undercoating layer 13 with a roller brush to form the adhesive layer 14. Immediately after application, the flake pieces 15 are sufficiently dispersed and adhered to the upper surface 4a of the adhesive layer 14 as shown in FIG. in this case,
Epoxy paint was used as the paint, Epicoat 1001 (trade name) as the main component was used as the epoxy resin, and modified aliphatic polyamine as the main component was used as the curing agent for the epoxy resin. As the flake piece 15, a plastic piece such as an acrylic resin or vinyl acetate resin, a mineral piece such as mica, or a metal piece such as aluminum, which is originally colored or colored, is used. The color pattern may be determined by a combination of the colors of the adhesive, the flakes, and the transparent resin layer.

After the flake pieces 15 are attached to the upper surface and the adhesive layer 14 is cured, a polishing treatment with a polisher with paper is performed. Roughness of about # 24 to 240 as paper is preferable in this case. By scouring in this manner, the flake pieces 15 that are not sufficiently adhered to the adhesive layer 14 are removed. By partially removing the flake pieces 15, the adhesive layer 14
After cleaning the upper surface 4a of the above, a flake piece 15 having a beautiful mottled pattern was obtained, and the adhesive layer 14 and the flake piece 15 formed a pattern layer.

Thus, as shown in FIG. 3, after the pattern layer is formed, the transparent resin is cast on the upper surface of the pattern layer to form a smooth transparent resin layer 16 as shown in FIG. ,
A cast floor 11 is created. The coating thickness of the transparent resin layer 16 is preferably 0.5 mm or more. An epoxy resin was used as the transparent resin. When the transparent resin layer 16 is thinly applied once or twice at first, the air in the flake piece 15 is released and the generation of bubbles can be eliminated. In this example, an epoxy resin containing Epicoat 828 (trade name) as a main component was used, and a modified alicyclic polyamine as a main component was used as a curing agent for the epoxy resin.

According to the example configured as described above, by directly placing the resin mortar undercoating layer 13 having sufficient strength on the underlayer 12, the flatness of the upper surface is improved, and ordinary concrete or the like is used. There is an irregularity of about 10 mm per 1 m on the underlayer of No. 1, but 1-2 mm per 1 m on this underlayer 13
It is possible to obtain a flat top surface shape that can be accommodated irregularly within, and that requires almost no buffing. This makes it possible to obtain a uniform pattern without causing unevenness on the polished surface when polishing with a polisher with paper. Further, since the undercoating layer 13 is formed of a resin mortar having a sufficient strength even though it has voids, it is very strong against depressions and cracks, and the voids absorb structural cracks such as concrete in the underlayer 12. Pattern layer and transparent resin layer 16
Does not affect. Since the void relieves the vapor pressure due to water, the pattern layer and the transparent resin layer 16 do not swell or peel off. In addition to the above-mentioned materials, the base treatment layer 13 may be the same as the transparent resin layer resin layer 16 on the surface, or a sheet may be laid on it by using polymer cement such as acrylic resin as an adhesive.

Furthermore, the flake pieces 15 having a weak strength can be thinned by forming a pattern layer so that the surface becomes less uneven. Since the pattern layer has a surface with less unevenness as described above, if the transparent resin layer 16 has a thickness of 0.5 mm or more from the adhesive layer 14, it becomes a smooth protective layer of the surface layer and the seamlessness of the casting floor. The characteristics of the floor coating agent such as high durability, chemical resistance, and high cleanliness can be guaranteed, and the pattern layer becomes flat and a thin transparent resin layer is formed on it, so It can give a three-dimensional depth and improve the aesthetics.

〔The invention's effect〕

As described above, the casting floor of the present invention is directly laminated on the base, and the surface-finished surface-treated layer and the adhesive layer are sprinkled with flaky flakes, and after the adhesion, the cleaning treatment is performed. A flat surface is obtained because it has a pattern layer formed by applying it to the undercoating layer and a transparent resin layer on which a transparent resin is cast to form a smooth surface. It is extremely easy to provide a casting floor which is not easily affected by the base and can obtain a uniform pattern.

In addition, a base treatment layer is directly laminated on the base, the surface is finished flat, an adhesive is applied to the surface, flakes are sprinkled on the adhesive, and after the flakes are bonded, they are unstablely bonded. The flakes present are removed by a scouring treatment, and a transparent resin is cast on the flakes, which can be manufactured without much skill and can be provided at a low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing the structure of an embodiment of the present invention, FIG. 2 is a vertical sectional view showing a state in which flakes are scattered, and FIG.
FIG. 4 is a vertical cross-sectional view showing a state in which the flakes are ground and cleaned, and FIG. 4 is a vertical cross-sectional view showing an example of a conventional casting bed. In the figure, 11 is a cast floor, 12 is a base layer, 13 is a base treatment layer,
Reference numeral 14 is an adhesive layer, 15 is a flake piece, and 16 is a transparent resin layer.

Claims (2)

[Claims] 1. A casting floor formed by casting a flooring material on a lower surface of concrete or the like, and a surface treatment layer which is directly laminated on the substrate and has a flat surface, and a thin piece for the adhesive layer. A flaky flake, a pattern layer formed on the base treatment layer by performing a cleaning treatment after adhesion,
A casting floor comprising a transparent resin layer on which a transparent resin is cast on the pattern layer and whose surface is finished to be smooth. 2. A base treatment layer is directly laminated on a lower surface of concrete or the like, the surface thereof is finished to be flat, and an adhesive is applied to the surface of the base treatment layer. Flake flakes are sprinkled, and after the flakes are adhered, a cleaning treatment is performed to remove the flakes that are unstablely adhered to form a pattern layer, and a transparent resin is formed at least once on the pattern layer. A method for producing a casting floor, which comprises casting a transparent resin layer to form a transparent resin layer.