JPH047459A - Decoration panel - Google Patents

Abstract

PURPOSE:To improve designing properties and strength by laminating a ceramic sheet in which inorganic particles are distributed inside on a platelike main body made of clay, baking it, and generating natural wrinkles on a decoration surface by using difference of shrinkage. CONSTITUTION:A platelike main body 1 made of solid or hollow material containing clay as a main ingredient is formed. Then, a ceramic sheet 3 having different shrinkage from that of a main body 2 at the time of baking is provided. Thereafter, inorganic particular material 4 made of main component of the body 2 is formed, and dispersively adhered to one side surface of the sheet 3. The sheet 3 in which the adhered surface of the material 4 is used as a bonding surface, is laminated on the body 2 through a crude drag layer 5. This laminate is baked in a baking furnace to generate wrinkles 3a and protrusions 3c. Thus, a beautiful decoration surface can be easily and inexpensively formed, and impact resistance, waterproofness, freezing resistance can be strengthened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a decorative panel that utilizes as a pattern protrusions formed by wrinkles caused by shrinkage of ceramics during firing and molten lumps of inorganic powder.

[Conventional technology]

Exterior wall materials made primarily of clay, such as tiles, have a smooth surface with a glazed appearance, and cement extrusion products include siding and roof tiles, and the decorative surfaces of these exterior materials have glazed patterns, Alternatively, there is an embossing process during extrusion, for example, as disclosed in Japanese Utility Model Application Publication No. 59-106929, or a member having a decorative surface engraved in a plitter style (not shown).

[Problem to be solved by the invention]

However, on decorative surfaces formed with embossing and extrusion dies, embossing with hollow bodies is impossible due to the press dies forming method, and patterns □ formed with extrusion dies are limited to straight patterns. was.

In addition, in this type of member, the color of the fabric serves as the base for producing the color of the decorative surface, and the appearance of the decorative surface changes significantly depending on the fabric, making it difficult to obtain the originally required color. Furthermore, when engraving, there are restrictions on the patterns available, making it expensive, and requiring the body itself to be thick.

Of course, all conventional techniques are artificial and lack a natural feel.

[Means to solve the problem]

In order to eliminate these drawbacks, the present invention utilizes the difference between the shrinkage rate of porcelain during firing (approximately 10%) and the shrinkage rate of an unfired ceramic sheet with inorganic powder particles distributed inside (back side). By making use of the natural "wrinkles" that occur on the decorative surface during firing, the design of the decorative surface is greatly improved, and there are no restrictions on the color of the base of the ceramic plate, thereby reducing costs.
Moreover, the present invention proposes a decorative panel with improved waterproofness, freeze-thaw resistance, and impact resistance.

〔Example〕

EMBODIMENT OF THE INVENTION Below, one Example of the decorative panel based on this invention is described in detail using drawings. That is, FIG. 1 is a perspective view showing an example of a decorative panel according to the present invention. It is formed in one piece. To explain further, the main body 2 is a plate-like body, either dense or hollow, with a thickness of 4 to 100+ nm, and a size of (width) 200 to 1000 x (vertical) 30 to 4000 m.
It is rank m. As for its specific cross-sectional shape, for example, the raw material mainly composed of clay can be shaped into an arbitrary shape using an extruder (not shown), for example, in FIGS. 2(a) to (e), and in FIGS.
It is formed into a cross section as shown in h). Examples of the main components of the main body 2 include those obtained by crushing pottery stone, feldspar, kaolinite, halloysite, metahalloysite, Honbushi clay, Frogme clay, Shigaraki clay, etc., and kneading the clay by adding water. In addition, this clay may be iron-removed using a magnet if necessary. The ceramic sheet 3 has inorganic powder particles 4 distributed on the inside, of course, on the back surface, and this surface is integrally fixed to the decorative surface 2a of the main body 2 via, for example, a glaze layer 5. It is useful for strengthening impact resistance, waterproofness, and frost damage resistance, and it is also useful for greatly relaxing the color of the decorative surface 2a of the main body 2, the color condition of the so-called clay raw material, and it is also useful for improving the decorative surface 2a after firing. This is effective for forming natural "wrinkles" on the decorative panel 2a and enhancing the design and strength of the decorative panel.

To explain further, the ceramic sheet 3 is a flat material,
Either embossing material or printing material may be used, and the material is one or more of alumina sheet, calcium carbonate sheet, calcium silicate sheet, rock wool sheet, and other mineral fiber sheets. The shrinkage rate is different 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 type of component, but is made into a sheet by mixing several types of components and mineral fibers, and has a thickness of about 0.1 to 2 mm. The width corresponds to the size of the decorative surface 2a of the main body 2. Furthermore, as shown in FIG. 4, the pitch P, height h, straight line, curve, or direction of the wrinkles 3a is not clear depending on the firing temperature and shrinkage rate. In addition, the inorganic powder particles 4 are distributed on the back surface of the ceramic sheet 3, for example, as shown in FIG.
As shown in a) and (c), it is crimped, glued (with glaze 5a) embedded, or formed as shown in, for example, Fig. 6 (a) to (d), especially Fig. 6 (d). , subject 2
A recessed portion is formed by embossing, and this portion is filled with inorganic powder 4, which is melted and integrated with the ceramic sheet 3 during firing. To explain further, the inorganic powder 4 consists of one or more types of granules with a size of 30 to 250 meshes or 1 to 2 mm, and is mainly composed of the ceramic sheet 3.
It has the function of making wrinkles and unevenness closer to a natural look. The material of the powder material 4 includes the main component of the main body 2, frit, and the like. In addition, the glaze layer 5 functions as an adhesive or an underglaze, and is
It serves as a surface flattening agent, an adhesive between the ceramic sheet 3 and the main body 2, and a support for the difference in shrinkage rate or as a relaxation layer. Of course, it is useful for improving waterproofness and reducing frost damage.

Next, the manufacturing method will be briefly explained. Therefore, in order to manufacture the decorative panel top as shown in FIG. 1, the raw materials for the main body 2 include, for example, silica sand waste and several types of melts.

Prepare clay mixed with point depressant and fiber minerals.

The weight percentage is 65% silica sand sludge, 25% melting point depressant (Kamado feldspar, sericite minerals, etc.), 1 wollastonite.
To 100% by weight of this main raw material, 20% by weight of water and 0.3% by weight of sodium pyrophosphate as a deflocculant were mixed, and this was mixed in a clay kneading machine (MP-100 model manufactured by Miyazaki Iron Works Co., Ltd.). )
It was kneaded with In addition, ceramic sheet 3 is made of a mixture of unfired calcium carbonate and alumina, and has a shrinkage rate of 9%.
A sheet material having a thickness of 0.5 mm and embossed thereon and fired at a temperature of 1300''C is prepared.In addition, as the inorganic powder 4, 300" The mesh-sized powder was pressed into a lump as shown in Fig. 5(a).Furthermore, the glaze layer 5 was made of frit No. 331 (80 parts by weight), metallic chromium powder (70 parts by weight), and clay (5 parts by weight). 13 parts by weight), sodium nitrite (0.05 parts by weight) and water (50 parts by weight).
Can be fired at 00°C, with a glaze layer of 0.63 to 0.1
I prepared something for the torso. Therefore, a glaze 5a is applied to the decorative surface 2a of the main body 2 which has been dried to a moisture content of 1% or less to form a glaze layer 5, and the inorganic powder 4 of the unfired ceramic sheet 3 is adhered to this layer 5. The surface (inside) was placed and fixed together, and then fed to a firing furnace (not shown) and fired at 1350°C. Therefore, on the surface of the decorative panel taken out from the furnace after cooling, there are protrusions 3C having wrinkles 3a with a height of about 0.1 to 1 mm due to shrinkage of the ceramic sheet 3 itself and wrinkles 3b due to melting and hardening of the inorganic material. It was formed naturally. Of course, the main body 2 and the ceramic sheet 3 were bonded together, and the glaze layer 5 was enameled. The physical properties on this decorative panel were significantly stronger than those of the fired body with only main component 2, and it did not penetrate even from 1 meter above the eggplant type (1 kg), and no change was observed in frost damage even after 100 cycles. .

〔Effect of the invention〕

As mentioned above, according to the decorative panel according to the present invention,
Natural "wrinkles" and artificial "wrinkles" can be formed on the cosmetic surface, resulting in excellent design. ■Strong mechanical strength such as impact resistance.

■Because the color of the main body has no effect on the color of the decorative surface, it is possible to easily form a beautiful decorative surface at low cost. ■No frost damage. It has the following characteristics and effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the decorative panel according to the present invention, FIGS. 2(a) to (e), and FIGS. 3(a) to (h).
is a sectional view showing an example of the main body, Fig. 4 is an explanatory drawing showing a part of the decorative surface extracted, Figs.
) to (d) are explanatory diagrams showing enlarged portions of the decorative surface. Top: decorative panel, 2: main body, 3: ceramic sheet, 4: inorganic powder, 5: glaze layer. Patent applicant: IG Technical Research Institute Co., Ltd. 1 ・ ・ 2 ・ ・ 3 ・ ・ 3a ・ ・ 4 ・ 5 ・ ・ Decorative panel, main body, ceramic seam, wrinkles, inorganic powder, glaze layer diagram (b-C Force (e) Figure 1 Figure 1 (α) <b>

Claims (1)

[Claims] (1) A ceramic sheet with one or more types of inorganic powder particles distributed inside is integrally formed on a main body mainly made of clay, and the ceramic sheet has wrinkles that occur during firing due to a shrinkage rate different from that of the main body. and a molten mass of the inorganic powder material appear on the decorative surface.