JPH0442823A - Production of glass having pattern - Google Patents

Abstract

PURPOSE:To readily form natural pattern such as wooden pattern by laminating grain bodies of glass on an irregular face formed on a membrane body, smoothing the irregular face and integrating the laminate by heating. CONSTITUTION:Pressure in a vessel 5 consisting of a box body 4 obtained by combining a flame resistant frame 2 with a rubber membrane body 3 having high modulus and strength is reduced by a pressure control device 6, and simultaneously, the membrane body 3 is pushed up by a contact member 7 to form an irregular face. Then the contact member 7 is fixed and gas in the vessel 5 is kept constant, and then plural kinds of glass grain having mutually different colors are laminated on the irregular face of membrane body 3 in layered forms 8a and 8e. Then, pressure in the vessel 5 is gradually increased, and simultaneously, the contact member 7 is lowered to smooth the irregular face of membrane body 3 and form a laminate 9 having layers 9a to 9e corresponding to said layers 8a to 8e. Then the glass grain bodies are packed in same height as the mold frame 2, then a bottom mold 12 is put on the mold frame 2 and the mold frame 2 is reversed. said membrane body 3 is removed, and the laminate 9 are heated, fused, or fused and crystallized to integrate the laminate 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a patterned glass suitable for architectural, decorative, furniture, etc., and in particular to a method for producing patterned crystallized glass.

[Conventional technology]

Conventionally, this type of manufacturing method uses crystalline glass that does not contain a nucleating agent, and the patterning method involves heat-treating the crystalline glass powder obtained by crushing molten crystalline glass with water cooling, etc. There are two methods: fusion bonding and crystallization, roll-out method to form a plate and crystallization, bonding of crystallized glass plates by heat treatment, and crystallized glass and crystalline glass powder. There is a method of creating a pattern by joining shapes by heat treatment.

For example, JP-A No. 63-144133 discloses a method in which crystalline glass powder of different colors is placed in a digit-shaped partition frame, and after the pattern is arranged, the partition frame is removed and fired. are doing.

Furthermore, in Japanese Patent Publication No. 53-196 [)7, convexities are formed on the surface of crystalline glass, the growth direction of the crystals on the convexities is changed, and then the convexes are shaved to form a flat surface, and the color tone of the traces of the convexes is changed. A method of changing is disclosed.

[Problem to be solved by the invention]

The method of using a partition frame has the disadvantage that fine patterns, curved patterns such as wood grain patterns, etc. cannot be produced well, and the pattern tends to collapse when the frame is punched out. Furthermore, in the method of forming the material into a plate shape using the roll-out method and crystallizing it, the material crystallizes homogeneously, making it difficult to create a large pattern.

Furthermore, it is difficult to cut the glass plate having a wood grain pattern by simply bonding the crystallized glass plates, and the manufacturing process is time-consuming.

In addition, the technique disclosed in Japanese Patent Publication No. 53-19607 uses the same crystalline glass, so there is little change in color tone, and it also has the disadvantage of requiring a great deal of effort to remove the convex parts by cutting or grinding. .

The purpose of the present invention was to eliminate the drawbacks of the prior art as described above, and by devising a glass accumulation method, it is possible to easily produce glass having natural patterns such as wood grain patterns. The purpose is to provide a method.

[Means to solve the problem]

The present invention provides a step of forming an uneven surface on a film body, a step of stacking glass particles and/or powder of different colors on the uneven surface in a layered manner, and a step of flattening the uneven surface to form a patterned surface. a step of forming a laminate on a film body to obtain a laminate;
A step of depositing glass particles and/or powder on the laminate to flatten the surface, a step of attaching a bottom mold to the flattened surface and inverting it, and a step of removing the membrane from the laminate. , a method for producing patterned glass, characterized by comprising a step of heating a laminate and integrating it by fusing or fusing/crystallizing, whereby the above object can be achieved.

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

In the present invention, these glass grains and powders having different colors are used. 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.

In the present invention, the laminate is formed so that a patterned surface appears on the film forming the uneven surface, and the pattern on the patterned surface is formed by forming a laminate formed of the glass grains/powder on the uneven surface. As a result of flattening the uneven surface, a patterned result can be realized by changing the layer structure. Therefore, since the pattern is determined by the shape of the uneven surface and the layer structure that is initially laminated, a laminate having a desired pattern surface can be formed by adjusting these conditions.

The shape of the uneven surface during the formation of the laminate is formed into a three-dimensional shape of peaks and valleys, but the shape of the peaks and valleys is not particularly limited, and may be any shape having depressions and depressions to obtain a desired pattern.

Further, there is no particular restriction on the shape of the first laminated layer.

The core layer may be a regular linear layer, an irregular curvilinear layer, a continuous or discontinuous layer, or a combination of these layers. In this case, the types of glass grains/powder forming each layer may be one type or a mixture of two or more types.

The pattern on the film body is determined by flattening the uneven surface, and there are no particular restrictions on the method of flattening the uneven surface. An example of this is to use an elastic member to flatten the unevenness.

In addition, since unevenness is formed on the upper part of the laminate due to the flattening of the film, a desired amount of glass grains/powder is added and deposited on the upper part before the heat treatment, and the desired laminate is formed by smoothing it. It can be done.

The laminate is manufactured by attaching a fire-resistant bottom mold and inverting the membrane body and the top cover. By removing , the laminate can be placed with a patterned surface on top.

During the above-mentioned inversion, the entire laminate must be held so that the glass grains and powder do not become disturbed or overflow.

Any method can be adopted without particular limitation as to the method of laminating the glass grains/powder to produce the initial lamination, but specifically, the glass grains/powder can be laminated into the formwork from above. Methods of forming the body by falling include, for example, manually dropping it or mechanically dropping it from a hopper or the like by controlling the moving speed and amount of fall.

Further, in this case, the inclination of the mold for receiving the falling glass grains/powder can be changed as appropriate.

The heat treatment conditions for the laminate in the present invention can be set as appropriate depending on the type of glass grain/powder material used, but
Crystalline glass is heated at a rate of 50 to 70 b/hr.
The temperature is maintained at a constant temperature selected from the crystal nucleus formation temperature range of 0 to 800°C for 0.5 to 5 hours, and then the temperature is raised at 50 to 50°C, and the temperature is maintained at a constant temperature selected from the range of 950 to 1100°C for 0.5 to 5 hours. An example of treatment is 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 (CaO-8102), forsterite (2MgO・Sin.), β-subodumene (Li20・Al2O3・4S102), and ureimite ( 22nO-8102), gahnite (ZnO・A12
03) etc.

There are many composition systems for crystalline glass that can precipitate such crystals, but among them, the main one that is in practical use is Li20-
AI, 03-3in2, Na20-A1203-3t
[12, MgD-A1203-5i02, Na, 0-C
an-MgO-3iO,, PbO-ZnO-8203,
These include ZnO-B2O3-5i02 series, among which a suitable one is selected. Nucleating agents for crystallization may be added to these glasses, in which case the nucleating agents include TlO2, ZrO2, Fe2O3, V2[IS,
Many materials are known, including oxides such as NiO and Cr2[]3, 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
iO2, Ca low A1203-3in2, K2O-C
There are aO5102, K2O-PbO-3+02 systems, etc.

To make these glasses colored, colorants are added. In addition to metal colloids such as gold, silver, and copper, N
10 (brown, beige bicolor), Mn02 (green, reddish brown),
Co0 (dark blue), Fe203 (blue, blue-green, brown),
Oxides such as Cr203 (orange, yellow, green, dark green), Cub (green, red), ZnO@Cr2O+ (light yellow),
ZnO・Cr2034+02 (row type/light brown), ZnO
・S, 102'Cr203 (loess/light brown yellow), (M
nSO4-4H20) ・Cr, 03 (cream color)
, Mn02e A1203 (pale yellowish white), etc., can be used. The amount of colorant added is 0.1
~5% by weight is preferred.

The particle size of the glass particles/powder used in the present invention is as follows:
In the case of granular materials, the preferred range is 15 to 10 mm, and in the case of powdered materials, Q is 5 mm or less.

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 schematic diagram showing an example of an apparatus applied to the present invention, and is a diagram showing a laminate forming apparatus 1 for controlling the shape of an uneven surface.

The laminate forming apparatus 1 includes a fire-resistant formwork 2 serving as a side wall, and a highly elastic and high-strength rubber membrane 3 forming the bottom surface of the formwork 2.
and a box body 4 for sealing the internal space in combination with the membrane body 3, and a pressure regulating device 6 connected to the vessel 5 to adjust the increase and decrease of the internal air pressure. . The contact member 7 is connected to the air cylinder and the membrane body 3
It comes into contact with the rubber membrane and moves up and down or further left and right, and cooperates with the pressure adjustment device 6 to give the rubber membrane a desired uneven shape.

Next, an example of a method for forming a laminate using the laminate forming apparatus described above will be specifically described.

The pressure in the container 5 is reduced by the pressure regulator 6, and the abutment member 7 having a desired shape is pushed up while abutting against the membrane body 3, thereby forming an uneven surface on the membrane body 3 corresponding to the shape of the abutment member. In this case, a plurality of contact members 7 can be used,
If a plurality of them are used, the amount of movement of each may be changed as appropriate.

Next, when the uneven surface of the desired shape is formed, the abutting member 7 is fixed and the air pressure of the container 5 is kept constant or the fishing machine is adjusted to maintain the desired uneven shape.

Then, to obtain a desired pattern, several kinds of glass grains/powder of different colors are deposited in layers on the uneven surface to form a laminated layer 8 consisting of layers 8a to 8e shown in FIG. Contact member 7
(not shown). After forming the laminated layer 8, the pressure inside the container 5 is gradually increased and the contact member 7 is moved downward away from the rubber membrane 3, so that the unevenness of the rubber membrane 3 is flattened due to its elasticity. do. As a result, the lamination 8
A laminate 9 as shown in FIG. 3 is formed having layers 9a-e corresponding to the layers 8a-e, and the bottom pattern is a wood grain pattern as shown in FIG.

The thickness of the laminate obtained in this way is not uniform, so after filling the glass particles and powder to the same height as the mold,
Place the bottom mold 12 on the mold 2, turn it over while holding the bottom mold 12 and the mold 2, remove the membrane 3, put the laminate 9 together with the mold into a furnace, and heat treat it to achieve the wood grain shown in Figure 4. Crystallized glass having a pattern corresponding to the pattern can be manufactured.

When inverting, it is preferable to pressurize the inside of the container 5 to prevent movement of glass grains and powder in the laminate.

[Effect]

In the present invention, a patterned surface having a complicated pattern such as a wood grain pattern can be formed in a two-dimensional manner by simply laminating glass grains/powder on the uneven surface of the film body and flattening the film body. It is possible to easily construct patterned glass that does not require a process such as cutting the surface to reveal the surface.

〔Example〕

The present invention will be described in detail below, but the present invention is not limited thereto.

Laminate forming apparatus 1 shown in Fig. 1 (film body 3: 2 m thick)
An example will be shown in which a laminate was formed using a m1 refractory formwork 2 (400 x 400 mm), and this was heat-treated to produce crystallized glass.

The glass granules shown in Table 1 below were used.

The film body 3 of the laminate forming apparatus 1 is provided with unevenness, and a layer 10 made of white crystalline glass granules is arranged on the uneven surface, as shown in FIG. 5, so that the thickness is about 5 mm at the thickest point. A layer 11 made of black crystalline glass granules is placed on top of the layer 11 so that the thickness is about 2 mm at the thickest point, and this is repeated until there are no irregularities, and then a layer 11 of white crystalline glass granules is placed on top of it to a thickness of about 20 mm. Further deposition was performed to form a laminated layer. Thereafter, at the same time as lowering the contact member 7, the pressure in the container 5 was returned to normal pressure, and the membrane body 3 was returned to a flat surface to form a laminate 9. At this time, some unevenness occurred on the upper surface, so this was further filled with white crystallized glass granules until it was at the same height as the upper surface of the mold 2. Next, as shown in FIG.
The formwork 2 and the bottom mold 12 are pressurized to about
After inverting and removing the film body 3, it was transferred to a furnace and heated at 100℃/
A heat treatment is performed in which the temperature is raised at a rate of 100 t/hr, held at 750°C for 2 hours, and then heated at a rate of 100t/hr and held at 1050°C for 2 hours to fuse and crystallize the laminate. A grain-like patterned crystallized glass 15 having a patterned surface of a white crystallized glass layer 13 and a black crystallized glass layer 14 shown in FIG. 7 was obtained.

〔Effect of the invention〕

The present invention can easily produce curved and complex patterns such as wood grain or ring patterns without the need for partition frames and without the hassle of cutting, grinding, etc., resulting in labor savings, cost reductions, etc.
: It is an extremely excellent manufacturing method that also contributes to

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view for explaining an example of a laminate forming apparatus to which the present invention can be applied, FIG. 2 is a sectional view of a laminate formed on the uneven surface of a film body of the laminate forming apparatus, and FIG. The figure is the second
FIG. 4 is a cross-sectional view of a laminate having a pattern formed from the laminate shown in the figure. FIG. 4 is a diagram showing a pattern formed on the bottom surface of the laminate when the laminate in FIG. 6 is a cross-sectional view for explaining the formation of the contact layer in the example, FIG. 6 is a cross-sectional view for explaining the example, and FIG. 7 is a plan view showing the patterned surface of the glass manufactured according to the example. be. Explanation of symbols 1: Laminate forming device 2: Fireproof formwork 3: Membrane body 4: Box body 5: Container 6: Pressure adjustment device 7: Contact member
8: Laminate 8a-e: Layer 9: Laminate 9a-e: Layer 10: Layer made of white crystalline glass granules 11: Layer 12 made of black crystalline glass granules: Bottom mold 13
; White crystallized glass layer 14: Black crystallized glass layer 15: Crystallized glass with wood grain pattern Fig. 1 Fig. 3 Fig. 2 Fig. 4 Fig. Fig. Fig. Fig.

Claims (1)

[Claims] A step of forming an uneven surface on the film body, a step of laminating glass particles and/or powder of different colors on the uneven surface in a layered manner, and a step of flattening the uneven surface to form a patterned surface on the film body. A step of depositing glass granules and/or powder on the laminate to obtain a laminate, a step of flattening the surface by depositing glass particles and/or powder on the laminate, and forming a bottom mold on the flattened surface. a step of inverting, a step of removing the membrane body from the laminate,
A method for manufacturing patterned glass, comprising a step of heating a laminate and fusing or fusing/crystallizing the laminate to integrate the laminate.