JPH0442824A - Production of glass having pattern - Google Patents

Abstract

PURPOSE:To make it possible to form a pattern having clear boundary by arranging plural sheets of articles formed with glass fiber nonwoven fabrics having mutually different colors or appearances in a mold and integrating the formed articles by heating. CONSTITUTION:Formed articles 1a and 1b of glass fiber nonwoven fabrics of prescribed shape and one or two or more formed articles of glass fiber nonwoven fabric having different colors or appearances from said formed articles 1a, 1b or grain bodies 2a, 3a, 3b and 3d of glass having 0.5-10mm grain size are arranged in a mold 4 and fused or fused and crystallized by heating to integrate the formed articles 1a and 1b with other formed articles or the above-mentioned grain bodies.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing patterned glass used as an exterior material for architecture, an interior material, or a material for furniture.

(Prior art) Conventional methods for making patterns appear on glass include, for example, printing various patterns and colors on a transparent glass plate, printing them, etc., or forming them on the glass surface by etching, etching, etc. A method of creating unevenness is used.

Regarding crystallized glass, JP-A-63-144133 discloses a method for manufacturing crystallized glass architectural materials exhibiting patterns having various colors and tones.

This method is capable of precipitating wollastonite crystals, and uses pattern-forming glass powder and base-forming glass powder having a particle size composition of 70% by weight or more of powder of 200 mesophyles or less, and a large number of partitioned fillings. A partition frame having holes is attached to the mold, a template with the desired pattern holes formed therethrough is placed on the partition frame, and the filling holes directly below the pattern holes are filled with glass powder for pattern formation. In this method, the template is removed, glass powder for base formation is filled into the filling holes that are not filled with powder, the partition frame is removed, and after compaction, a crystallization heat treatment is performed.

(Problems to be Solved by the Invention) However, when printing or baking patterns or colors on conventional ordinary glass, or when adding uneven patterns by etching, etc., there is a drawback that the patterns are superficial and lack depth. In addition, the above-mentioned method of creating patterns on crystallized glass not only requires the step of removing the formwork and partitioning frames, which is time-consuming, but also requires the filling of glass grains when forming patterns using the formwork and partitioning frames. Not only is it difficult, but it is not possible to create detailed patterns such as the A pattern, and since glass particles are filled in both the base formation and the pattern formation, there are problems such as easy mixing of the two. Furthermore, the latter has the disadvantage that it cannot be mass-produced.

The present invention solves these problems, allows colors and patterns to be freely formed, and patterns with clear boundaries to be formed, and a method that allows for easy production of patterned glass through simple steps. The purpose is to provide the following.

[Failure to solve the problem] The present invention has achieved the above objects by the following means.

That is, the present invention provides one or more non-woven fabric molded bodies made of glass fibers having a predetermined shape, and one or more non-woven fabric molded bodies made of glass fibers having a predetermined shape different in color or appearance from the non-woven fabric molded bodies having a predetermined shape. A patterned glass characterized by being placed in a mold together with individual nonwoven fabric moldings or glass granules or powders having different colors or appearances, heated, fused or fused crystallized to be integrated. A nonwoven fabric made of glass fibers and at least one nonwoven fabric made of glass fibers with a different color or appearance are stacked together and put into a mold of a predetermined shape as is, or rolled from one end. This is a method for manufacturing patterned glass, which is characterized in that the glass is rolled to form a roll-shaped product and then heated to fuse or crystallize and integrate.

The present invention targets crystallized glass (glass on which crystals have already precipitated), crystalline glass (glass where crystals can precipitate but have not precipitated), and ordinary glass (general glass such as plate glass and colored glass). In the present invention, these are collectively referred to as glass.

Furthermore, in the present invention, different colors include different colors.

The present invention will be explained in detail below.

The present invention is characterized by using a nonwoven fabric molded body made of glass fibers and having a predetermined shape, and by using such a molded body, the boundaries can be clearly defined without causing the problems caused by the prior art described above. It is possible to easily obtain a product with a pattern.

Such a nonwoven fabric molded article can be obtained, for example, as follows.

Glass raw materials are heated and melted and formed into a nonwoven fabric (mantle) made of these fibers using a strand method, spinning method, etc.

In this case, organic binders such as polyester, epoxy, and phenol, or sodium silicate (water glass, etc.)
An inorganic binder such as , sodium aluminate, or ethyl millicate hydrolyzate is used.

As long as the nonwoven fabric has sufficient thickness, it can be used in one piece or in layers.

In the present invention, it is preferable to increase the density by pressing or the like during production of the nonwoven fabric (mat).

Next, the nonwoven fabric molded body was punched and pressed, laser cut,
Or cut it out to form a molded body into a predetermined shape.

In this case, the shape of the molded body will be explained in Examples below, and
As shown in the figure and Fig. 2, the shape may be cylindrical, ring-shaped, or have an appropriate space, and products with different patterns on the front and back can be made by arranging molded bodies with different cutout patterns. can. Furthermore, it may be a laminate made of a suitable number of non-woven fabrics of different colors, or a roll-like product made by stacking and winding them.

In the present invention, the above-mentioned nonwoven fabric molded article is placed in a mold, and the voids formed inside and outside the mold are filled with glass granules or powder having a different color or appearance of the nonwoven fabric, or A plurality of nonwoven fabric molded bodies with different colors are placed in a mold, and in this case, if there are spaces, they may be filled with particles or powder of different colors as described above), heated, fused, or The glass is fused and crystallized to obtain a patterned glass.

In the present invention, the expression "different in appearance" refers to a difference in the properties of the glass itself, such as transparent and opaque, which can be visually distinguished from each other.

Further, according to another aspect of the present invention, nonwoven fabrics having at least two different colors or appearances as described above are stacked,
This can be rolled up to form a roll, or put into a mold with a predetermined shape, pressed to form a predetermined shape if necessary, and heated and fused or fused to crystallize to obtain glass with a wood grain (annual ring) pattern. . Note that it is preferable that the roll-shaped molded product is placed in a mold of the same shape and heated.

In the present invention, as described above, an organic or inorganic binder is used when making a nonwoven fabric, but during the above heating, the organic binder thermally decomposes and disappears, and the inorganic binder is incorporated as a glass component. There is no problem.

Since the present invention is particularly suitable for manufacturing patterned crystallized glass, the following will be described in the case of manufacturing patterned crystallized glass.
Although we will discuss materials, heating processes, etc., it is easy to understand that the invention can also be applied to ordinary glass.

As the glass (crystalline glass) from which crystallized glass can be made in the present invention, any glass that has been known as a raw material for producing crystallized glass can be used. As the glass, β-wollastonite (
CaO・SiO, forsterite (2MgO-5i
O□), β-spodumene (Li, O・AlzOx・4
SiO2), ureimite (2ZnO・Sing),
It is capable of precipitating crystals such as gahnite (ZnO-A!zOx). There are a large number of basic glass systems for such glasses, but the main one that is in practical use is LizOA/20. -5ift, NazO-
^12Q3-5in2, MgOAlt(hSiO2, N
ano CaOMgO-5in□, PbO-ZnO-
Among these, a suitable one is selected. A nucleating agent for crystallization may be added to these glasses, and examples of the nucleating agent include TiOz, Zr(h, FezO:+, ν).
203, NiO, CrzO3, fluoride, sulfide, PL
Many materials are known, including precious metals such as and Au.

The above is a case where crystallized glass is made using non-woven fabric and granular or warp-like bodies of non-crystallized glass.
In the present invention, a nonwoven fabric, granules, or powder of crystallized glass can be used.

That is, a crystallized glass is produced by using the crystalline glass material described above and subjected to a heat treatment for crystallization as described later, and a nonwoven fabric, a granular material, or a powdered material can be produced from the crystallized glass.

When these glasses are made into colored glasses other than colorless, a coloring agent is added. Coloring agents include gold, silver,
In addition to metal colloids such as copper, Ni0 (brown, beige)
, MnO2 (green, reddish brown), co.

(dark blue), FezO+ (blue, blue-green, yellowish brown),
Oxides such as Cr, 03 (orange, yellow, green, dark green), Cub (green, red), ZnO/CrzO:+ (light yellow), Zn
O・CrzO:+・Tl02 (row type, light brown), Z
nO・Snug HCrgOs (loess, brown yellow)
, (MnSOn ・41120) ・CrzOz (
Spinel type pigments such as MnO2.IVg(h (pale yellowish white)) can be used.The amount of the coloring agent added is preferably 0.1 to 5% by weight.

When using crystallized vitrified granules or powder in the present invention, the particle size of the granules is 0.5 to 1.
A range of 0 is preferable, and in the case of powder, 0.5 nu++
Use the following:

As for the heat treatment conditions, when using crystalline glass,
For example, the temperature is raised from room temperature to 750"C over about 6 hours, maintained at this temperature for about 2 hours to promote the growth of crystal nuclei, and then raised to 1050"C over about 6 hours.
The temperature was gradually raised to 70°C, kept at this temperature for about 2 hours, and then slowly cooled.

When a crystallized glassy raw material is used, the operation of maintaining the temperature at 750'C for 2 hours under the above conditions may be omitted.

Although the present invention has been described above in the case of manufacturing patterned crystallized glass, the present invention can also be applied to the case of ordinary glass.

In this case, the material for the ordinary glass is, for example, Na
zOCaO5iOz series, NazOBz03SiOz series,
CaO-8l! 03 5iOz system, [2O-CaO-
3i02 series, K2OPbO-3iO□ series, B2O35i
nt system etc. are used.

The heat treatment is carried out at a temperature above the softening point and below the melting temperature, for example, by raising the temperature from room temperature to 850° C. in about 2 hours, maintaining this temperature for about 2 hours, and then slowly cooling.

〔Example〕

EXAMPLES Hereinafter, the present invention will be specifically explained with reference to Examples, regarding the case where patterned crystallized glass is manufactured using crystalline glass. However, it will be readily understood by those skilled in the art that the present invention is not limited to these examples, and can also be applied to cases where nonwoven fabrics or granules made of crystallized glass or ordinary glass are used. .

Note that polyester resin was used as a binder when making the nonwoven fabrics of each example.

Example 1 A cylindrical nonwoven fabric molded body 1a and a ring-shaped nonwoven fabric molded body 1b were formed using a nonwoven fabric having a thickness of 15a++n made of fibers having the black crystalline glass composition shown in Table 1 as shown in a plan view in FIG. .

In addition, ring-shaped nonwoven fabric molded bodies of white and haige crystalline glass shown in Table 1 (each thickness 15M) (2Mi)
2a, 2b and 3a, 3b were formed.

Note that 3b has a special shape that matches the mold 4, as shown in FIG.

These nonwoven fabric molded bodies were tied together, placed adjacent to each other in a mold 4 made of SiC, and heat-treated in a furnace as follows.

That is, the temperature was raised from room temperature to 750'C over 6 hours, kept at this temperature for 2 hours, and then heated to 1070'C over 6 hours.
The temperature was raised to 'C, kept at this temperature for 2 hours, and then slowly cooled.

As a result, each of the nonwoven fabric molded bodies was fused and crystallized to form a single piece of crystallized glass having a pattern as shown in FIG. 1.

Example 2 Nonwoven fabric 11 made of white crystalline glass fibers shown in Table 1 (200 mm x 200 mm x 5 nun)
As shown in the plan view in FIG. 2(a), five cavities 12 of various sizes with circular cross sections are punched out and placed in a mold 13, and the first cavity is placed in the cavity.
Black crystalline glass grains shown in the table (diameter 0.6-1.0mω
), and was heat-fused and crystallized in a furnace under the following heat treatment conditions to obtain crystallized glass with a clear circular pattern.

Note that FIG. 2(b) is a sectional view taken along line A--A of FIG. 2(a).

The heat treatment conditions were: temperature was raised from room temperature to 750°C over about 6 hours, held at this temperature for about 1 hour, then heated to 10"70°C over another 6 hours, and held at this temperature for 2 hours. After that, it was slowly cooled.

Example 3 Two sheets of nonwoven fabric (111104 cm, length 10
m, thickness 5 iun), and on top of that, one sheet of nonwoven fabric of the same size as above made of fibers with the black crystalline glass composition shown in the table to form three layers, and this is shown in Figure 3. As shown, the product was rolled from one end to obtain a roll-shaped molded product. This roll-shaped molded product was placed in a cylindrical mold of the same shape and heat-fused and crystallized in a furnace under the following heat treatment conditions to obtain a crystallized glass molded product with a built-in wood grain (annual ring) pattern.

The heat treatment conditions were to raise the temperature from room temperature to 750°C over 6 hours, maintain this temperature for about 2 hours, and then heat it for 1 hour over another 6 hours.
The temperature was raised to 070°C, maintained at this temperature for 2 hours, and then slowly cooled.

As shown in FIG. 4, this molded body has a plate-grained cross-section on the A side, a straight-grained cross-section on eight sides, and an annual-ring-like cross section on the zero side.

Example 4 Two pieces of nonwoven fabric (width: 400 x 400 x 5) made of fibers with a black crystalline glass composition shown in Table 1 and 2 pieces of nonwoven fabric made of fibers with a beige crystalline glass composition shown in Table 1 of the same shape. Four sheets of nonwoven fabric were prepared and laminated to form a black-beige-beige-black-beige-haige color.

This was placed in a saddle-shaped bottom mold as shown in FIG. 5, and was heat-fused and crystallized in a furnace under the following conditions to obtain crystallized glass.

The heat treatment conditions were as follows: temperature was raised from room temperature to 750°C over 6 hours, maintained at this temperature for about 2 hours, and then heated to 750°C over 6 hours.
The temperature was raised to 70°C, maintained at this temperature for 2 hours, and then slowly cooled.

As shown in FIG. 6, the resulting saddle-shaped laminate was cut along the A plane to obtain crystallized glass having a plate-like wood grain pattern.

〔Effect of the invention〕

According to the present invention, when manufacturing patterned glass,
Since a non-woven fabric made of glass fibers is used as at least one element, the filling operation is troublesome compared to the conventional case of using glass grains and powder of different colors, and Patterned crystallized glass or glass having clear boundaries can be obtained by a relatively simple operation without causing any mixing of comrades.

[Brief explanation of the drawing]

FIGS. 1 to 6 are explanatory diagrams showing each aspect of the present invention, respectively. 1a+ lb, 2a, 2b, 3a+ 3b, 1
1... Glass fiber nonwoven fabric, I2... Crystallized glass granules, 4.13... Type. X color crystallization

Claims (2)

[Claims] (1) One or more molded nonwoven fabrics made of glass fibers and having a predetermined shape, and one or more molded nonwoven fabrics that are made of glass fibers and have a predetermined shape that are different in color or appearance. 1. A method for producing patterned glass, which comprises placing glass granules or powders of different bodies, colors, or appearances in a mold, heating them, and melting or crystallizing them to integrate them. (2) A non-woven fabric made of glass fibers and at least one non-woven fabric made of glass fibers with a different color or appearance are superimposed and put into a mold of a predetermined shape as they are, or
A method for manufacturing patterned glass, which comprises rolling this into a roll from one end to form a roll-shaped product, and then heating it to fuse or crystallize it and integrate it.