JP2947524B2 - Decorative panel - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel that uses wrinkles caused by a difference in shrinkage rate generated during firing on a ceramic plate as a pattern.

[Conventional technology]

Clay-based outer wall materials, for example, tiles have a smooth surface and glaze-appeared appearance, and siding and tiles are known as cement extruded products. Alternatively, there is embossing at the time of extrusion, for example, Japanese Utility Model Application Laid-Open No. Sho 59-106929, or a member (not shown) having a decorative surface engraved in a brick tone.

[Problems to be solved by the invention]

However, on the decorative surface formed by the embossing and the extrusion die, it is impossible to emboss the hollow body due to the method of forming the press die in the embossing, and the pattern formed by the extrusion die is limited to a linear pattern. I was Further, in this kind of member, the color of the fabric becomes a base for producing the color of the decorative surface, and the appearance of the decorative surface changes greatly depending on the fabric, and it is difficult to obtain the original required color. Furthermore, when engraving, the pattern is limited and expensive, and the body itself must be formed thick. Of course,
The conventional techniques are all artificial and lack natural feeling.

[Means for solving the problem]

In order to eliminate such disadvantages, the present invention provides a difference between the shrinkage during firing of a porcelain plate (about 10%) and the shrinkage ratio of an unfired ceramic sheet in which inorganic powdery material that partially melts at 1000 ° C. or more is distributed on the surface. "Wrinkles" that occur during baking on decorative surfaces
A decorative panel that improves the design of the decorative surface, eliminates any restrictions on the color of the base of the porcelain plate, reduces costs, and improves waterproofness, freeze-thaw resistance, and impact resistance. Is what you do.

〔Example〕

Hereinafter, an embodiment of a decorative panel according to the present invention will be described in detail with reference to the drawings. That is, FIG. 1 is a perspective view showing a decorative panel according to the present invention, and 1 is a decorative panel in which a plate-shaped main body 2, a ceramic sheet 3 and a glaze layer 5 are integrally formed, and Clay is formed into an arbitrary shape by an extruder (not shown), for example, into a cross section as shown in FIGS. 2 (a) to 2 (e) and 3 (a) to 3 (h). In addition, as an example of the main component of the main body 2, porcelain stone, feldspar, kaolinite, halloysite,
Metahaloysite, Kibushi clay, Frogme clay, Shigaraki clay, etc. are crushed and kneaded with water. The clay may be iron-removed by a magnet if necessary. The ceramic sheet 3 has an inorganic powdery material 4 which is melted at a temperature of 1000 ° C. or higher on the front surface, and a glaze layer 5 on the back surface.
The ceramic sheet 3 mainly serves to enhance the impact resistance, waterproofness, and frost damage resistance, and the color of the decorative surface 2a of the main body 2 is fixed. , Helps to significantly reduce the color conditions of so-called clay raw materials, and after firing, natural wrinkles 3a on the decorative surface 2a
To enhance the design and strength of the decorative panel 1 . More specifically, the ceramic sheet 3 may be any of a flat material, an embossed material, and a printing material, and may be made of at least one of an alumina sheet, a calcium carbonate sheet, a calcium silicate sheet, a rock wool sheet, and other mineral fiber sheets. The shrinkage rate during firing differs from that of the main body 2, and this difference is expressed as wrinkles 3a after firing. Note that the ceramic sheet 3 is not necessarily formed from only one kind of component, but is formed into a sheet by mixing several kinds of components and mineral fibers, and has a thickness of 0.1 to 2 mm.
The position and width correspond to the size of the decorative surface 2a of the main body 2. Further, as shown in FIG. 4, the wrinkles 3a have a pitch P, a height h, or a straight line, a curve,
Or the direction is not clear. The inorganic powder 4 is at least partially melted at about 1000 ° C. or higher, and is composed of at least one of frit pieces, pottery stone, feldspar, kaolinite, halloysite, metallite, and the like, and has a particle size of 3 or more.
It is about 0.5 mm or about 28 to 250 mesh, and is fixed by embedding, laying, and glaze 5a as shown in FIGS. 5 (a) to 5 (d), for example. The glaze layer 5 functions as a lower glaze, and serves as a flattening of the surface of the main body 2, an adhesive between the ceramic sheet 3 and the main body 2, and a promotion of a difference in shrinkage, or as a moderating layer. . Of course, it is useful for improving waterproofness and reducing frost damage.

Next, the manufacturing method will be briefly described. In order to manufacture the decorative panel 1 as shown in FIG. 1 , as the raw material of the main body 2, for example, clay mixed with silica sand sludge, several kinds of melting point depressants, and fiber minerals is prepared. The weight percentage is 65% silica sand sludge, melting point depressant (Kamado feldspar, sericite mineral, etc.)
25%, wollastonite 10%, 100% by weight of this main material, 20% by weight of water, sodium pyrophosphate as peptizer
0.3% by weight was mixed and kneaded with a clay kneading machine (MP-100, manufactured by Miyazaki Iron Works Co., Ltd.). The ceramic sheet 3 is a mixture of unfired calcium carbonate and alumina, embossed with a shrinkage of 9% and a thickness of 0.5 mm, and has frit fragments on its surface, about 1-2 mm in diameter.
A sheet material having a sintering temperature of 1300 ° C. which is distributed at 5 pieces / cm ² and compressed is prepared. Frit No.3 is used for glaze layer 5
31 (80 parts by weight), a mixture of chromium metal powder (70 parts by weight), clay (5 parts by weight), sodium nitrite (0.05 parts by weight) and water (50 parts by weight) which can be fired at 1300 ° C A glaze layer of 0.63-0.1 mm was prepared. Therefore, a glaze layer 5 is formed by applying a glaze to the decorative surface 2a of the main body 2 dried to a moisture content of 1% or less, and an unsintered ceramic sheet 3 is placed on the glaze layer 5 and fixed integrally thereto, and thereafter not shown. Send to firing furnace 13
Fired at 50 ° C. Therefore, wrinkles 3a having a height of about 0.1 to 1 mm were naturally formed on the surface of decorative panel 1 taken out of the furnace after cooling. Of course, the main body 2 and the ceramic sheet 3 were integrally bonded, and the glaze layer 5 was enameled. The physical properties of the decorative panel 1 were much stronger than those of the fired body having only the main body 2, and the decorative panel 1 did not penetrate even from an eggplant type (1 kg) 1 m above. .

〔The invention's effect〕

As described above, according to the decorative panel of the present invention,
Natural "wrinkles" and protrusions of granular materials can be formed on the decorative surface, and the design is excellent. High mechanical strength such as impact resistance. Since the color of the main body has no effect on the color of the decorative surface, a beautiful decorative surface can be easily formed at low cost. No frost damage. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a decorative panel according to the present invention, FIGS. 2 (a) to (e), and FIGS. 3 (a) to (h) are cross-sectional views showing an example of a main body. FIG. 4 is an explanatory diagram showing a part of the decorative surface portion extracted, and FIGS. 5 (a) to 5 (d) are explanatory diagrams showing a fixed state of the inorganic particles. 1 ... decorative panel, 2 ... main body, 3 ... ceramic sheet, 4 ... inorganic powder, 5 ... glaze layer.

Claims (1)

(57) [Claims] 1. A ceramic sheet is integrally formed on a main body mainly composed of clay with a glaze layer interposed therebetween, and the ceramic sheet has an inorganic powdery material which partially melts at 1000 ° C. or more on its surface. A decorative panel characterized in that wrinkles generated during firing due to the difference in shrinkage ratio with the main body appear on the decorative surface.