JPH09255347A - Glass ware with pattern and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the color development of patterns and to make the patterns distinct and to prevent the exposure of the heavy metals in colors contg. the heavy metals (lead, cadmium, etc.) on the surface of glass ware by expressing the patterns by using these colors. SOLUTION: The patterns 5 are formed by the colors contg. the heavy metals on the mating surface 2 of the one glass plate 1 of two sheets of the glass plates 1, 3 to be superposed (a). These glass plates 1, 3 do not contain the heavy metals, such as lead and cadmium. In succession, the glass plates 1, 3 are superposed at the mating surfaces and are heated to a prescribed temp. and are pressed. Both glass plates 1, 3 are then tightly adhered at the softened mating surfaces 2, 4, by which the integral base material glass plate 6 is formed (b). The softened base material glass plate 6 is pressed and molded to form the glass ware 11 (c). Fine air bubbles are interposed between the mating surfaces 2 and 4 if the glass (figured glass, polished glass, etc.) formed with the rugged surfaces on the mating surfaces is used for one or both of the glass plates 1, 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glassware having a pattern formed by using a paint containing a heavy metal and a glassware having a pattern formed therein.

[0002]

2. Description of the Related Art Conventionally, in a patterned glassware, one surface of a glass plate having a predetermined shape is drawn or printed with a paint,
Alternatively, it was transferred with a transfer paper to form a pattern.

[0003]

In the past, when paints containing heavy metals (lead, cadmium, etc.) were used, harmful heavy metals were poured out from the paints during use, so such paints could not be used. . It could not be used for tableware.

[0004]

SUMMARY OF THE INVENTION However, the present invention solves the above problems because the pattern represented by the paint containing heavy metal is sandwiched between two glass plates and sealed.

That is, the invention of a glassware is a glassware in which two glass plates are stacked, and a pattern represented by a paint containing a heavy metal is hermetically interposed between both glass plates. It is a glassware. Further, it is a patterned glassware in which bubbles are interposed between the two glass plates described above.

The above-mentioned paints containing heavy metals are lead,
It is a paint that contains heavy metals such as cadmium. The glass plate in the above is made of a material that does not contain heavy metals such as lead and cadmium.

Further, in the method for manufacturing a glassware, a pattern is displayed on the mating surface of at least one of the two glass plates, the both glass plates are overlapped, and the two glass plates are pressed and brought into close contact while being heated. A glass substrate with a pattern is produced by forming a glass substrate with a base material and press-molding the glass substrate with a predetermined shape to produce a glass container with a pattern. Furthermore, the method for producing a patterned glassware is characterized in that, of the mating surfaces of the glass plates used in the manufacturing method, at least one of the glass plate mating surfaces is formed as a rough surface.

The bubbles mentioned above include both small bubbles (about 1 to 5 mm) and fine bubbles (about 0.01 to 1.0 mm).

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Among two glass plates, a pattern represented by a paint containing a heavy metal is shown on a mating surface of one of the glass plates. Both glass plates are overlapped with each other on a mating surface, and the glass plates are heated and pressed against each other to form a base glass plate. Then, the glass substrate is pressure-molded into a predetermined shape to manufacture a glassware. If at least one of the glass plates is a template glass, it is possible to manufacture a glass device in which fine bubbles are interposed between the two glass plates.

The pattern is formed by the paint by drawing, transfer paper or other conventional methods.

[0011]

Embodiment 1 An embodiment of the present invention will be described with reference to FIG.

Of the two glass plates 1 and 3 to be overlapped, patterns 5 and 5 are shown on the mating surface 2 of one of the glass plates 1 with paint containing a heavy metal (lead, cadmium, etc.) (FIG. 1 (a)). The glass plates 1 and 3 are made of a material containing no heavy metals such as lead and cadmium.

Subsequently, the two glass plates 1 and 3 are stacked on the mating surfaces 2 and 4. Then, when heated and pressed at a predetermined temperature, the two glass plates 1 and 3 are brought into close contact with each other by the softened mating surfaces 2 and 4 to form an integral base glass plate 6 (FIG. 1 (b)). In the above, for example, when glass plates 1 and 3 having a thickness of 2 to 3 mm are used, the maximum temperature is about 800 ° C., and heating is performed for about 60 minutes in total including pre-heating and post-heating.

Subsequently, the softened base glass plate 6 is formed.
Is sandwiched between a lower mold 7 having a predetermined molding concave portion 8 and an upper mold 9 having a molding convex portion 10 and pressed to mold a predetermined glassware 11 (FIG. 1C).

In the above embodiment, a pattern is drawn on the mating surface 2 of one glass plate 1 of the glass plates 1 and 3, but it is the same on the mating surface 4 of the other glass plate 3 or both glass plates 1 and 3. Alternatively, different patterns can be represented (not shown).

Further, in the above embodiment, the glass plates 1, 3
Bubbles may be trapped in the mating surfaces 2 and 4 when they are superposed. In order to eliminate bubbles, the glass plates 1 and 3 can be heated and pressed under a reduced pressure condition. Alternatively, the space between the mating surfaces 2 and 4 of the glass plates 1 and 3 can be forcibly degassed by radially pressing and heating and pressing. Further, when the glass plates 1 and 3 are pressed, the glass plates 1 and 3 can be pressed sequentially from the center toward the peripheral portion (none of them is shown).

Further, in the above embodiment, the glass plates 1, 3
It is also possible to use template glass in which one or both of them are provided with an uneven pattern on the mating surfaces 2 and 4. In this case,
Although it depends on the size and shape of the unevenness, fine bubbles of about 0.01 to 1.0 mm can be enclosed (not shown). Also,
In this case, on the contrary, it is possible to prevent the generation of relatively large bubbles between the mating surfaces 2 and 4. Further, instead of the template glass described above, a glass plate having rough mating surfaces 2 and 4 (for example,
Polished glass, etc. The same effect can be obtained by using () (not shown).

Further, in the above embodiment, the glass plates 1, 3
It is also possible to press the upper mold 9 and the lower mold 10 while heating, to bring both glass plates 1 and 3 into close contact with each other, and at the same time form the glass device 11 (not shown).

[0019]

[Embodiment 2] Another embodiment of the present invention will be described with reference to FIG. This example is an example in which a glass plate formed in advance by bending is used.

A mating surface 1 of one of the bent glass plates 13
In FIG. 4, patterns 5 and 5 are represented by paints containing a heavy metal as in Example 1 before or after bending the glass plate 13 into a predetermined shape. In addition, the mating surface 16 of the other glass plate 15
Is formed into a curved surface that substantially corresponds to the mating surface 14 of the glass plate 13 (FIG. 2A).

Similar to the first embodiment, two glass plates 13 and 1 are used.
5, the mating surfaces 14 and 16 are heated and softened, and pressed by the lower mold 7 and the upper mold 9 to bring the glass plates 13 and 15 into close contact with each other to mold the glassware 11 (FIG. 2 (b )).

Similar to the first embodiment, the glass plates 13 and 15
It is also possible to enclose fine air bubbles between the mating surfaces 14 and 16 of the glass plates 13 and 15 by using one or both of the glass plates as a template glass or the mating surface as a rough surface.

[0023]

EFFECTS OF THE INVENTION Since a pattern made of paint containing a heavy metal is enclosed between two glass plates, a vivid pattern can be expressed with good color due to the heavy metal, and the heavy metal component is poured onto the surface of the glassware. There is an effect that can provide a safe glassware. Further, since two glass plates are used, glass plates of different colors can be used for the upper and lower surfaces, which has the effect of expanding the design range of the glassware.

[Brief description of drawings]

1A to 1C are schematic vertical cross-sectional views for explaining a manufacturing process of a glassware according to an embodiment of the present invention.

2 (a) and 2 (b) are schematic vertical sectional views for explaining a manufacturing process of a glassware according to another embodiment of the present invention.

[Explanation of symbols]

 1 glass plate 2 mating surface 3 glass plate 4 mating surface 5 pattern 6 base material glass plate 11 glassware 13 glass plate 14 mating surface 15 glass plate 16 mating surface

Claims (4)

[Claims] 1. A glassware formed by stacking two glass plates and integrally molding the glassware, wherein a pattern represented by a paint containing a heavy metal is hermetically interposed between the glass plates. . 2. The patterned glassware according to claim 1, wherein air bubbles are interposed between the two glass plates. 3. A base glass plate is formed by presenting a pattern on the mating surface of at least one of the two glass plates, stacking the two glass plates, and pressing and contacting the two glass plates while heating them. Then, the glass substrate with a pattern is manufactured by press-molding the substrate glass plate into a predetermined shape. 4. The method for producing a patterned glassware according to claim 3, wherein the mating surface of at least one of the glass plates is formed to be uneven.