JPH0442826A - Production of glass having pattern - Google Patents

Abstract

PURPOSE:To make it possible to form a pattern of complicated from by arranging two or more kinds of glass grain bodies having different colors and glass sheet bodies in a mold to form a laminate and integrate the laminate by heating and then cut the resultant fused body. CONSTITUTION:Two or more kinds of glass grain bodies 1a, 2a and 3a having different colors and glass sheets 1b, 2b and 3b having 2-15cm thickness are arranged in a mold 6 so as to have a proper space 5 to form a laminate 5. Then the laminate 5 is softened by heating and deformed so as to fill up the space 5, and fused and crystallized to provide a fused body 7. Then the fused body 7 is cut.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing patterned glass, particularly patterned crystallized glass, suitable for architectural and decorative purposes, furniture materials, and the like.

[Conventional technology]

Conventionally, as a manufacturing method of this type, glass granules obtained by crushing crystalline glass that does not contain a nucleating agent are placed in a mold and heat treated to fuse and crystallize.
JP-A-48-78217, JP-A-50-1165
17, etc., and a production method of forming into a plate shape by a roll-out method and crystallizing by heat treatment is disclosed in JP-A-6027622 etc.; JP-A-1-18940 discloses a method of creating a granite-like mottled pattern by mixing and filling the mixture into a mold.

[Problem to be solved by the invention]

Crystalline glass granules that do not contain a nucleating agent are produced using the fact that crystals form only from the surface of the granules to reveal the pattern of the granules. It is difficult to make, and if you use a partition plate,
There is a drawback that the pattern collapses when the partition plate is pulled out after accumulation, and the method of forming it into a plate shape using the roll-out method and crystallizing it contains a nucleating agent, so it crystallizes homogeneously. , it is difficult to create large and complex patterns.

In addition, the technique disclosed in JP-A-1-18940 uses only granular crystallized glass, so only fine patterns can be obtained, and it is difficult to obtain large and complex patterns. There is.

The purpose of the present invention was to eliminate the above-mentioned drawbacks of the prior art, and to provide a method for easily manufacturing aesthetically pleasing patterned glass having a complex patterned appearance. be.

[Means to solve the problem]

In the present invention, glass granules and/or powders and glass plates of two or more colors are placed in a mold, deformed by heating, and then integrated by fusing or fusing/crystallizing. , is a method for manufacturing patterned glass, characterized in that a patterned surface is obtained by cutting, and thereby the above object can be achieved.

The glass granules and/or powder (hereinafter abbreviated as glass granules/powder) and glass plates used in the present invention may be made of any material such as crystallized glass, crystalline glass, ordinary glass. Crystallized glass refers to glass in which crystals have already precipitated, and crystallized glass refers to glass in which crystals can be precipitated but have not yet precipitated. is plate glass,
Refers to common glass such as colored glass.

In addition, products made by arranging these glass grains/powder and glass plates in a mold (hereinafter referred to as laminates) are fused together or fused/crystallized by heat treatment. (hereinafter referred to as the fused body), and the final product is
Although it may be crystallized glass, crystalline glass, or ordinary glass, it is preferable for aesthetics to include at least crystallized glass.

In the present invention, two or more colors are used in these glass particles/powder and the glass plate. In the present invention, the glass grains/powder and the glass plate have different colors. Furthermore, the glass grains/powder itself may be of different colors, and the same applies to the glass plate.

Here, the term "different colors" includes not only ordinary colored colors such as red and orange, but also differences in shading or transparency of the same color, or a combination thereof. The color of the present invention means the color when the product is made, and does not necessarily match the color of the glass grains/powder or the glass plate.

Further, in the present invention, any color can be used for the glass particles/powder and the glass plate.

The shape and size of the glass plate are not particularly limited as long as they are larger than the glass particles/powder.

The particle size of the glass particles/powder used in the present invention is as follows:
In the case of granular materials, the range is preferably from 0.5 to 1Qmm, and in the case of powdered materials, those of 0.5+nm or less are used.

The size of the glass plate is preferably selected from a range of 2 cm to 15 cm.

The structure of the laminate made of glass grains/powder and the glass plate must be such that at least a desired pattern appears at the cutting position of the fused body.

In addition, if the laminate is configured with a space gap between the glass plate and the glass grains/powder, the glass grains/powder and glass plate will undergo large deformations during heating, resulting in complex and subtle changes. This makes it easier to form patterns.

The heat treatment conditions for the laminate in the present invention can be appropriately set depending on the type of glass grains/powder used and the material of the glass plate, but for crystalline glass, the temperature is usually in the range of 50 to 800°C. The temperature was maintained at a constant temperature selected from the range of 950 to 1100 degrees Celsius for 0.5 to 5 hours, then raised at a temperature of 50 degrees to 1,100 degrees. Examples include a process of holding for 5 to 4 hours and then slowly cooling.

Specifically, the crystals generated in the heat treatment of the present invention include β-wollastonite (Can-3in2), forsterite (2MgO・5in2) β-spodumene (Li20・Al1[]3・4SI [12), ureimite (2ZnO-5in2), gahnite (
ZnO・A1203) and the like.

There are many composition systems for crystalline glasses that precipitate such crystals, but among them, the main one that is in practical use is Li20-A.
1203-3i02, Na20-A1203-5IO2
, MgO-A12113-5i02, Na, (]-Ca
b-Mg[]-5■(]2, PbO-ZnO-8203
, ZnO-82[13-3in2 system, etc., among which a suitable one is selected. A nucleating agent for crystallization may be added to these crystalline glasses, and in that case, the nucleating agent includes TlO3, ZrO2, Fe2O3, V
Many materials are known, including oxides such as 2O5, NiD, and Cr2O3, fluorides such as CaF2, sulfides, and noble metals such as Pt and Au.

In addition, the composition system of ordinary glass is Na20-CaO-3i02, Na2O-8203-3
i02, CaD A1203-8102, K2OCaO
-5t02, K2O-PbO-3i02 systems, etc.

To make these glasses colored, colorants are added. In addition to metal colloids such as gold, silver, and copper, N
13 (brown, two-color page), MnO2 (green, reddish brown),
C00 (dark blue), Fe2O, (blue, blue-green, brown)
, Cr2D3 (orange, yellow, green, dark green), Cub (green,
oxides such as red), ZnO・Cr203 (pale yellow),
Zn0/Cr2O3/T102 (row type/four-row color), Zn
O・5n02” Cr2O3 (loess/Shijo yellow), (
Spinel pigments such as MnSOa -4H20) -Cr2[13 (cream color), Mll[12''Al□[13 (light yellowish white)], etc. can be used.The amount of the coloring agent added is 0.1 to 5% by weight. % is preferred.

[Effect]

In the present invention, a laminate is created by combining glass grains/powder of different colors and sizes with a glass plate, so when this is heated, the glass plate deforms and the pattern inside the fused body changes at the mold contact area. Since the pattern is more complicated than that shown in the figure, it is possible to obtain a complex pattern by cutting this part.

Examples of preferred embodiments of the present invention include the following methods. This will be explained below with reference to the drawings.

FIG. 1 is a diagram showing a cross section of a laminate formed according to the present invention.

Formation of the laminate will be described below.

As a constituent material of the laminate 5, black crystalline glass granules 1
a, plate-shaped black crystalline glass plate 1b;

Spherical black crystalline glass plate ICN beige crystalline glass granules 2a, plate-shaped beige crystalline glass plate 2
b, spherical beige crystalline glass plate 2C1 white crystalline glass granular body 3a, plate-shaped white crystalline glass plate 3b
A laminate 5 is prepared by arranging each of these materials in a mold 6 so as to have an appropriate space 4 between each material.

Next, this laminate is softened by heating, and each material is deformed and fused so as to fill the space 4, or is integrated by fusion, crystallization, and black crystallized glass as shown in FIG. 1. Obtain a fused body 7 consisting of Page dichroic crystallized glass 2 and white crystallized glass 3.

By cutting this fused body along A in Fig. 2,
A product having a complex pattern on its surface as shown in FIG. 3 is obtained.

When creating the above laminate, by assuming the planned cutting surface of the fused body in the laminate, the vicinity of the planned surface is constructed with a particularly concentrated complex pattern, and the other parts are made of monochromatic glass grains/powder. A product of desired thickness can be obtained by simply depositing the bodies.

〔Example〕

Hereinafter, specific examples of the present invention will be described, but the present invention is not limited thereto.

Example laminate forming material black crystalline glass granules 1as plate-shaped black crystalline glass plate 1b, spherical black crystalline glass plate 1cs beige crystalline glass granules 2a, plate-shaped beige crystalline glass plate 1cs A glass plate 2b, a spherical beige crystalline glass plate 2C1, a white crystalline glass granule 3a, and a plate-shaped white crystalline glass plate 3b were used. Table 1 shows the composition of each crystalline glass.

Table 1 Next, a laminate 5 as shown in FIG. 1 is prepared in a mold 6 using the crystalline glass material of each shape described above, and placed in an electric furnace. The temperature was raised at a rate of 100°C/hr, held at 750°C for 2 hours, and further raised at a rate of 100°C/hr until 10
A heat treatment was performed at 70° C. for 2 hours to form a fused body 7 shown in FIG. 2.

Next, the fused body 7 was cut along line A shown in FIG.
A crystallized glass having a complex pattern consisting of black crystallized glass 1, beige crystallized glass 2 and white crystallized glass 3 was obtained on its surface.

〔Effect of the invention〕

According to the present invention, it is possible to easily and inexpensively obtain glass having a complex pattern and having high aesthetic value.

[Brief explanation of drawings]

1 to 3 are diagrams for explaining the present invention in detail, with FIG. 1 being a cross-sectional view of the laminate, FIG. 2 being a side view of the fused product, and FIG. 2 is a sectional view taken along line A in FIG. 2, showing a pattern on the surface of the crystallized glass product. Explanation of symbols 1: Black crystallized glass 1a: Black crystalline glass granules 1b: Plate-shaped black crystalline glass plate IC: Spherical black crystalline glass plate 2: Beige crystallized glass 2a: Beige crystals Glass granules 2b: Plate-shaped beige crystalline glass plate 2C Two spherical beige crystalline glass plates 3: White crystallized glass 3a: White crystalline glass granules 3b: Plate-shaped white crystalline glass Plate body 4; Space 5: Laminated body 6: Mold 7: Fusion body Fig. b; Plate-shaped white crystalline glass plate body

Claims (1)

[Claims] Glass granules and/or powders and glass plates of two or more colors are placed in a mold, deformed by heating, fused or fused/crystallized to be integrated, and then cut. A method for producing patterned glass characterized by obtaining a patterned surface.