JP2005139797A - Building material with warm touch, paste and method for manufacturing building material with warm touch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building material with warm touch effectively. <P>SOLUTION: A tile with warm touch comprises a base part 1b made of a ceramic and a surface layer 10b integrally provided with the base part 1b on a surface side of the base part 1b. In the surface layer 10b, the first to third thermal insulation layers 3b, 4b, 5b including silica-based hollow particles B are directly laminated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a warm building material, a paste for producing the warm building material, and a method for producing the warm building material.

  A general tile which is a kind of building material includes a ceramic base and a surface layer provided integrally with the base on the surface side of the base. When this tile is manufactured by a screen printing method, a rotocolor printing method, or the like, first, a paste having a pigment and poly and / or monoalkyl glycol in which the pigment is dispersed is prepared. Moreover, the base before baking a base part is obtained with ceramic raw materials, such as clay. Then, one or a plurality of pre-fired heat insulating layers are formed on the surface side of the base before firing the base or the base by a screen printing method using a paste to obtain a pre-fired product. Thereafter, the pre-fired product is fired. A protective layer which is a transparent glaze layer is also formed on the most surface side. Thus, a tile can be manufactured.

  Moreover, what was obtained by baking the product before baking is still used as a base, and one or a plurality of heat-insulating layers before baking are formed on the surface side of the base by a screen printing method using a paste to obtain the product before baking. Thereafter, this pre-fired product may be fired. Also in this case, a protective layer, which is a glaze layer, is formed on the most surface side, whereby a tile can be manufactured.

  The tile thus obtained has a base made of ceramics and exhibits excellent durability due to excellent heat resistance, chemical resistance and the like as a building material such as an interior material. In particular, this tile exhibits excellent design properties because the surface layer is decorated by a screen printing method or the like. In the tile provided with the protective layer, the durability of the surface layer is maintained by the protective layer which is amorphous or crystalline glassy.

  However, this kind of general ceramic product is in the shade in the winter, feels cold when a person touches the surface, it is in the sun in the summer, and the person on the surface When touched, there is a problem of feeling hot.

  For this reason, Patent Document 1 proposes a warm sensation tile in which the surface layer is made porous. This warm sensation tile has a porous surface layer that reduces thermal conductivity, so it is in the shade in winter, and it is hard to feel cold when people touch the surface. There is a warming effect that it is hard to feel heat even when a person touches the surface.

Japanese Patent Laid-Open No. 5-17271

  However, since the conventional warm tile has a porous surface layer by adopting a glaze containing a gas generating component such as silicon carbide, the porosity of the surface layer is not always sufficient and an effective temperature is achieved. It is difficult to achieve a feeling effect.

  This invention is made | formed in view of the said conventional situation, Comprising: It is set as the problem which should be solved to provide the warm feeling building material which can show | play an effective warm feeling effect.

  The warm building material of the present invention comprises a ceramic base and a surface layer provided integrally with the base on the surface side of the base, the surface layer comprising a plurality of heat insulating layers containing silica-based hollow particles. It is characterized by being laminated.

  Since the surface layer is formed by laminating a plurality of heat insulating layers including hollow particles, the warm building material has a high porosity of the surface layer. Therefore, this warm feeling building material can have an effective warm feeling effect.

  The hollow particles are particles having pores in a non-water-absorbing spherical or substantially spherical shell. The pores may be filled with a gas such as air or a vacuum. As the silica-based hollow particles, glass balloons, silica balloons, quartz glass balloons, fly ash balloons, shirasu balloons and the like can be employed. These preferably have a particle size of about several tens of μm.

  The heat insulation layer containing hollow particles may be directly laminated, or may be laminated via an adhesion layer which is a normal glaze layer not containing hollow particles. In the latter case, it is preferable to make the thickness of the adhesion layer thinner than the heat insulation layer.

  The warm building material of the present invention preferably has a lower fire resistance as the heat insulating layer on the surface side. In this case, the surface property of the warm building material is clean. In order to lower the fire resistance of the heat insulating layer on the surface side, not only means for reducing the amount of hollow particles but also means for lowering the fire resistance of other components excluding the hollow particles can be adopted. As means for lowering the fire resistance of the other components excluding the hollow particles, at least one of the means for increasing the alkaline component, the means for increasing the alkaline earth metal component such as lime and talc, and the means for increasing boric acid is used. Can be adopted.

  In the warm sensation building material of the present invention, the surface layer preferably has an adhesion layer that causes the heat insulation layer on the most base side to be in close contact with the base. In this case, the heat insulating layer can be firmly adhered to the base portion, and excellent durability can be exhibited. As the adhesion layer, a normal glaze layer that does not contain hollow particles can be employed.

  In the warm building material of the present invention, the surface layer preferably has a protective layer on the most surface side. In this case, the protective layer protects the heat insulating layer, and the durability of the surface layer is maintained. A normal transparent glaze layer can be employed as the protective layer.

  Each thermal insulation layer can have a different color. In this case, decoration can be performed simultaneously.

  The paste of the present invention is characterized by having silica-based hollow particles and poly and / or monoalkyl glycol in which the hollow particles are dispersed. According to this paste, the heat-insulating layer before firing can be formed by a screen printing method, a rotocolor printing method or the like, and the warm building material of the present invention can be produced. This paste can include pigments, feldspar, silica sand, frit and the like.

  The method for producing a warm building material of the present invention is a screen printing method using the above paste, and forms a plurality of pre-fired heat-insulating layers on the base or the surface side of the substrate before firing the base to obtain a pre-fired product. It is characterized by comprising a first step and a second step of firing the pre-fired product to obtain a warm building material. With this manufacturing method, the warm building material of the present invention can be manufactured.

  In addition, the manufacturing method of the warm building material of the present invention, when n is a natural number and m is n + 1, is formed on the surface side of the base or the base before firing the base by the screen printing method using the paste. 1 a first step of forming a heat-insulating layer before firing to obtain a first fired product, a second step of firing the first fired product to obtain a first fired product, and a screen printing method using the paste To form a heat insulation layer before m-th firing on the surface side of the n-th fired product, to obtain a product before m-th firing, and to obtain a warm building material by firing the product before m-th firing. And a process.

  That is, this manufacturing method forms a pre-fired heat insulating layer on the surface side of the base before firing the base or the base by a screen printing method using a paste to obtain a pre-fired product. Thereafter, the pre-fired product is fired to form a substrate again. Then, a pre-firing heat insulation layer is formed on the surface side of the substrate again by a screen printing method using a paste to obtain a pre-firing product. Thereafter, the pre-fired product is fired. What is obtained in this way can be used as a substrate again. Finally, a protective layer that is a transparent glaze layer may be formed on the most surface side. Thereby, the warm building material of the present invention can be manufactured.

  Embodiments 1 to 3 embodying the present invention will be described below with reference to the drawings.

  First, as shown in FIG. 1, a tile base 1a that becomes a base portion is obtained by sintering with a ceramic material such as clay. Further, a commercially available fly ash is poured into water, and the fly ash balloon that floats after stirring is referred to as a hollow particle B. The hollow particles B have a specific gravity of about 0.4 kg / l and an average particle size of about 10 μm.

  And the glaze for contact | adhesion layers which shows a mixing | blending in Table 1, and shows a component in Table 2, the 1st-3rd paste, and the glaze for protective layers are prepared. The first to third pastes contain hollow particles B, but the adhesion layer glaze and the protective layer glaze do not contain hollow particles B.

  Then, as a first step, the adhesive layer 2a before firing is formed by first applying a glaze for the adhesive layer on the surface of the tile substrate 1a by a normal glazing method and drying it. Also, the first pre-firing heat insulating layer 3a is formed by applying the first paste to the surface of the pre-firing adhesion layer 2a by screen printing and drying. At this time, the mesh of the screen is set to 15 mesh. Further, the second pre-firing heat insulating layer 4a is formed by applying a second paste to the surface of the first pre-firing heat insulating layer 3a by screen printing and drying. At this time, the mesh of the screen is set to 30 mesh. Moreover, the 3rd paste is apply | coated to the surface of this 2nd pre-baking heat insulation layer 4a with a screen printing method, and the 3rd pre-baking heat insulation layer 5a is formed by making it dry. At this time, the mesh of the screen is set to 30 mesh. Then, the glaze for protective layers is apply | coated to the surface of this 3rd heat insulation layer 5a before baking by the spray method, and the protective layer 6a before baking is formed by making it dry. In this way, the product before baking is obtained. These pre-firing adhesion layers 2a, first to third heat-insulating layers 3a, 4a, 5a and pre-firing protective layer 6a are pre-firing surface layers 10a.

  Thereafter, as a second step, the pre-fired product is fired at 1220 ° C. for 35 minutes. Thereby, the warm tile of Example 1 shown in FIG. 2 is obtained.

  Since this warm tile consists of a ceramic base 1b and a surface layer 10b provided integrally with the base 1b on the surface side of the base 1b, it has excellent heat resistance and chemical resistance as a building material such as an interior material. Exhibits excellent durability due to its properties. In particular, in this warm tile, since the colors of the first to third heat insulating layers 3b, 4b, and 5b are different, excellent design properties are exhibited.

  Moreover, in this warm tile, the surface layer 10b is directly laminated with the first to third heat insulating layers 3b, 4b, and 5b including the hollow particles B. For this reason, this warm tile has the high porosity of the surface layer 10b, and can exhibit an effective warm feeling effect. For this reason, when this warm tile is embodied as a floor tile, even if a person is barefoot on the tile, it is possible to spend well by the warm effect.

  Furthermore, in this warm tile, the third heat insulating layer 5b has a lower fire resistance than the second heat insulating layer 4b on the back side by means for lowering the fire resistance of the other components excluding the hollow particles B. The heat insulation layer 4b has a lower fire resistance than the first heat insulation layer 3b on the back side. Thus, this warm sensation tile is extremely excellent in surface properties.

  Moreover, in this warm tile, the surface layer 10b has the adhesion layer 2b which makes the 1st heat insulation layer 3b which is the most base 1b side closely_contact | adhered to the base 1b, and has the protective layer 6b on the most surface side. ing. For this reason, in this warm tile, the 1st-3rd heat insulation layers 3b, 4b, and 5b adhere firmly to the base 1b, and can exhibit excellent durability. In this warm tile, the protective layer 6b protects the first to third heat insulating layers 3b, 4b, and 5b, and the durability of the surface layer 10b is maintained.

  In Example 1 above, the first to third pre-fired heat insulating layers 3a, 4a, and 5a are sequentially formed on the surface side of the substrate 1a by the screen printing method using the first to third pastes, and the pre-fired product obtained thereby is obtained. In Example 2, the following manufacturing method was adopted.

  That is, first, the first pre-firing heat insulating layer 3a is formed on the surface side of the substrate 1a by the screen printing method using the first paste to obtain a pre-firing product. Thereafter, the pre-fired product is fired to form the substrate 1a again. And the 2nd heat-insulating layer 4a before baking is formed in the surface side of the base 1a by the screen-printing method using a 2nd paste, and the product before baking is obtained. Thereafter, this pre-fired product is fired to make the substrate 1a again. And the 3rd heat insulation layer 5a before a baking is formed in the surface side of the base 1a by the screen-printing method using a 3rd paste, and the product before baking is obtained. Thereafter, the pre-fired product is fired. Other conditions are the same as those in the first embodiment.

  By doing so, the same warm tile as in the first embodiment can be obtained. In Examples 1 and 2, it is also possible to form the first pre-fired heat insulating layer 3a and the like on the base 1b formed by firing the base 1a.

  In Example 3, the adhesive layer glaze, the first to third pastes, and the protective layer glaze, whose formulations are shown in Table 3 and whose components are shown in Table 4, are prepared.

  And the pre-baking goods shown in FIG. 3 are obtained by performing a 1st process similarly to Example 1. FIG. The pre-firing adhesive layer 2a, the first to third pre-firing heat insulating layers 13a, 14a, and 15a and the pre-firing protective layer 6a are the pre-firing surface layer 20a. Next, the second step is performed in the same manner as in Example 1 to obtain the warm tile shown in FIG.

  The warm tile also includes a ceramic base 1b and a surface layer 20b provided integrally with the base 1b on the surface side of the base 1b. As for the surface layer 20b, the 1st-3rd heat insulation layers 13b, 14b, and 15b containing the hollow particle B are laminated | stacked directly. Therefore, this warm tile can also have the same effects as the first and second embodiments.

  Further, in this warm tile, the third heat insulating layer 15b has a lower fire resistance than the second heat insulating layer 14b on the back side by means for reducing the amount of the hollow particles B, and the second heat insulating layer 14b is on the back side. The fire resistance is lower than that of the first heat insulating layer 13b. Thus, this warm tile is also excellent in surface properties. Other functions and effects are the same as those of the first and second embodiments.

  The warm building material of the present invention can be embodied in floor tiles, wall tiles and the like. In particular, the warm building material is preferably embodied in floor tiles. If this floor tile is constructed in an indoor living room, kitchen, bathroom, etc., even if a person is barefoot on it, it is possible to spend a good time due to the warmth effect.

It is a schematic cross section of the product before baking for manufacturing the warm tile of Example 1,2. It is a schematic cross section of the warm tile of Examples 1 and 2. 6 is a schematic cross-sectional view of a pre-firing product for producing the warm tile of Example 3. FIG. 6 is a schematic cross-sectional view of a warm tile of Example 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1b ... Base part 10b ... Surface layer 3b, 4b, 5b, 13b, 14b, 15b ... Heat insulation layer (3b, 13b ... 1st heat insulation layer, 4b, 14b ... 2nd heat insulation layer, 5b, 15b ... 3rd heat insulation layer)
2a ... adhesion layer 6b ... protective layer

Claims (8)

A ceramic base and a surface layer provided integrally with the base on the surface side of the base;
The heat-sensitive building material, wherein the surface layer includes a plurality of heat insulating layers containing silica-based hollow particles.   The warm building material according to claim 1, wherein the heat resistance of the heat insulating layer on the surface side is lower.   3. The warm building material according to claim 1, wherein the surface layer has an adhesion layer that closely contacts the heat insulating layer on the base side to the base. 4.   The warm building material according to any one of claims 1 to 3, wherein the surface layer has a protective layer on the most surface side.   The warm building material according to any one of claims 1 to 4, wherein each of the heat insulating layers has a different coloration.   A paste comprising silica-based hollow particles and poly and / or monoalkyl glycol in which the hollow particles are dispersed. A first step of obtaining a pre-firing product by forming a plurality of pre-firing heat-insulating layers on the surface side of the base before firing the base or the base by a screen printing method using the paste according to claim 6;
And a second step of obtaining a warm building material by firing the pre-fired product. When n is a natural number and m is n + 1,
A first step of obtaining a first pre-fired product by forming a first pre-fired heat-insulating layer on the surface of the base before firing the base or the base by a screen printing method using the paste according to claim 6;
A second step of firing the first pre-fired product to obtain a first fired product;
A third step of forming a heat insulation layer before m-th baking on the surface side of the n-th fired product by a screen printing method using the paste, and obtaining a product before m-th firing;
A method for producing a warm-sensitive building material, comprising: a fourth step of firing the pre-m-th fired product to obtain a warm-sensitive building material.

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