JP2954650B2 - Decorative panel - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel using as a pattern projections formed between wrinkles generated by shrinkage during firing and a molten mass of inorganic particles on a ceramic plate.

[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 a member having a decorative surface which is embossed at the time of extrusion, for example, Japanese Utility Model Application Laid-Open No. 59-106929, or which is not shown but is engraved in a brick tone.

[Problems to be solved by the invention]

However, embossing, on a decorative surface formed by an extrusion die, embossing cannot be performed in a hollow body due to the method of forming a press die, and the pattern formed by an extrusion die is limited to a linear pattern. 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, all of the conventional techniques are artificial and lack natural feeling.

[Means for solving the problem]

In order to eliminate such defects, the present invention utilizes the difference in shrinkage (about 10%) during firing of porcelain and the shrinkage rate of an unsintered ceramic sheet in which inorganic particles are distributed inside (back side). Utilizing the natural "wrinkles" that occur during baking on the decorative surface,
It proposes a decorative panel that greatly improves the design of the decorative surface, eliminates any restrictions on the color of the base material of the porcelain plate, reduces costs, and improves waterproofness, freeze-thaw resistance, and impact resistance. It is.

〔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 an example of a decorative panel according to the present invention. 1 is a decorative panel comprising a plate-shaped main body 2, a ceramic sheet 3, inorganic powdery materials 4, and a glaze layer 5 provided as required. It is formed integrally. More specifically, the main body 2 is a plate-shaped body, either a solid body or a hollow body, and has a thickness of 4 to 100 mm and a size of (horizontal) 200 to 1000 × (vertical) 30 to 4000 mm. As a specific cross-sectional shape, for example, a raw material mainly composed of clay is shown in an arbitrary shape by an extruder (not shown), for example, as shown in FIGS. 2 (a) to (e) and FIGS. 3 (a) to (h). It is formed in such a cross section. 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. In the ceramic sheet 3, the inorganic powder 4 is distributed on the inner side and, of course, on the back side.
In addition, for example, the ceramic sheet 3 is integrally fixed via a glaze layer 5, and the ceramic sheet 3 mainly serves to enhance the impact resistance, waterproofness, and frost resistance, and the color of the decorative surface 2 a of the main body 2, It is useful for greatly relaxing the color conditions of so-called clay raw materials, and is effective for forming natural "wrinkles" on the decorative surface 2a after firing and for enhancing the design and strength of the decorative panel 1. It is. 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 parts.
The mm and width correspond to the size of the decorative surface 2a of the main body 2. Further, wrinkles 3a are formed at the firing temperature as shown in FIG.
The pitch P, the height h, or the straight line, the curve, or the directionality is not clear depending on the contraction rate. In addition, the inorganic particles 4 are distributed on the back surface of the ceramic sheet 3,
For example, as shown in FIGS. 5 (a) and 5 (b), crimping, bonding (with glaze 5a) and burying, or for example, FIGS.
FIG. 6 (d) shows that the main body 2 is provided with a recess by embossing, and this portion is filled with the inorganic powder 4, which melts during firing. And integrated with the ceramic sheet 3. More specifically, the inorganic powdery material 4 is made of at least one of 30 to 250 mesh, or 1 to 2 mmφ granular material, and mainly has a function of bringing “wrinkles” and “irregularities” of the ceramic sheet 3 closer to a natural feeling. Things. The material of the powder 4 is composed of a main component of the main body 2, a frit or the like. Also,
The glaze layer 5 functions as an adhesive or a lower glaze, and serves as a flattening surface of the main body 2, an adhesive between the ceramic sheet 3 and the main body 2, and promoting a difference in shrinkage rate, or serving as a moderating layer. It is. 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 prepared by mixing unfired calcium carbonate and alumina, embossing with a shrinkage of 9%, a thickness of 0.5 mm, and a firing temperature of 1300 ° C. .
Further, as the inorganic powdery material 4, the raw material of the main body 2 was dried.
Powder of about 300 mesh was pressed as a lump as shown in FIG. 5 (a). Frit No.3 is used for glaze layer 5
31 (80 parts by weight), metallic chromium powder (70 parts by weight), clay (5 parts by weight), sodium nitrite (0.05 parts by weight) and water (50 parts by weight) A glaze layer with a thickness of 0.63 to 0.1 mm was prepared. Therefore, glaze 5a is applied to decorative surface 2a of main body 2 dried to a moisture content of 1% or less to form glaze layer 5, on which inorganic powder 4 of unfired ceramic sheet 3 is adhered. The surface (inside) was placed and fixed integrally, and then fed to a firing furnace (not shown) and fired at 1350 ° C. Therefore, the surface of the decorative panel 1 taken out of the furnace after cooling is subjected to shrinkage of the wrinkles 3a having a height of about 0.1 to 1 mm due to shrinkage of the ceramic sheet 3 itself and the inorganic substance,
The projections 3c having wrinkles 3b due to curing were formed naturally. Of course, the main body 2 and the ceramic sheet 3 were integrally bonded, and the glaze layer 5 was enameled. This decorative panel
The physical properties of 1 are much stronger than those of the fired body consisting of only the main body 2. The eggplant type (1kg) does not penetrate even from 1m, and the frost damage is 100%.
No changes were seen at all during the cycle.

〔The invention's effect〕

As described above, according to the decorative panel of the present invention,
Natural "wrinkles" and artificial "wrinkles" can be formed on the decorative surface, and are excellent in design. 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 extracted and shown, FIGS. 5 (a), (b), and FIGS.
(D) is an explanatory view showing a part of the decorative surface in an enlarged manner. 1 ... decorative panel, 2 ... main body, 3 ... ceramic sheet, 4 ... inorganic powder, 5 ... glaze layer.

Claims (1)

(57) [Claims] A ceramic sheet in which at least one kind of inorganic powder is distributed inside is formed on a main body mainly composed of clay, and the ceramic sheet has a shrinkage rate different from that of the main body during firing. A decorative panel characterized in that wrinkles generated and a molten mass of the inorganic powder are formed so as to appear on a decorative surface.