JPH0664933A - Production of decorative glass article - Google Patents

Abstract

PURPOSE:To enable the reutilization of a glass article such as an unnecessary glass vessel and to easily and economically regenerate an unnecessary glass article to a new decorative glass article having attractive colors without using a forming mold by using a formed glass article and glass powder produced e.g. by crushing a glass article. CONSTITUTION:A number of glass powder particles are placed on or included in a formed glass article 1 or a softened glass article heated at 600-900 deg.C. The glass powder has a thermal expansion coefficient nearly equal to that of the glass article. The product is softened at 600-900 deg.C to fuse the glass powder 2 onto the glass article.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses an already molded glass product such as a glass container and glass powder obtained by crushing a glass product, for example, to produce a new glass ornament without using a molding die. Regarding the method.

[0002]

2. Description of the Related Art Heretofore, various techniques have been known for making glass crafts (part de veil), building materials and ornaments by using powder, lump or granular glass.
No. 151,236, No. 52-78211, No. 52-72714, No. 3-177323, No. 3-218934, No. 3-205319).

[0003]

However, all of them are methods of forming into a predetermined shape by using only powdery or lumpy or granular glass, and for that purpose a molding die of metal, plaster or the like is required. However, it takes time and effort for molding, and the cost is high, and a decorative effect with a rich color sense cannot be obtained.

The object of the present invention is to reuse a glass product such as a glass container which is no longer needed, and to use a mold using a molded glass product and, for example, a glass powder obtained by crushing the glass product. The purpose of the present invention is to make it possible to easily and economically recycle unnecessary glass products as new glass ornaments rich in color.

[0005]

The method for producing a glass decorative article according to the present invention comprises a molded glass article, or a material which is once softened at a temperature of 600 to 900 ° C., on or in the surface thereof and thermally expanded. A large number of glass powders having almost the same glassy rate are stacked or put and softened at a temperature of 600 to 900 ° C. to fuse the glass powders onto the glass product.

When a glass container is used as a glass product, a large number of glassy glass powders having substantially the same thermal expansion coefficient as that of the glass container are put in the glass container and softened at a temperature of 600 to 900 ° C. to form the glass container. Along with crushing, glass powder can be fused so as to be sandwiched between crushed glass containers.

[0007]

Since the glass product has already been molded, it is not necessary to newly mold it. When a large number of colorless and transparent or differently colored glass powders are superposed on or on the surface of the glass product and softened at a temperature of 600 to 900 ° C., As glassware deforms,
Glass powder is welded to it to form a pattern. Since glass powder has almost the same coefficient of thermal expansion as glass products, the glass products do not crack or break during cooling.

[0008]

EXAMPLES Examples of the present invention will be described in detail below. 1
A molded (off-the-shelf) glass container is placed on a heat resistant material (for example, ceramic fiber paper or board) that can withstand a high temperature of 000 ° C. or more. The glass container may be left standing, slanted, or laid sideways. Further, the glass container may be in the original shape, may be partially cut or broken, or may be further softened by heat and deformed. It is economical to use used recovered glass containers or defective glass containers.

In such a glass container, a large number of glass powders are put as a decoration material, or placed on the outer surface of a softened and deformed material. At this time, it is necessary that the coefficient of thermal expansion of the base glass container and that of the glass powder are almost the same, and if the difference in coefficient of thermal expansion is large, distortion will occur during the cooling process and the glass container will crack or break. It will be lost. To avoid this, it is preferable to use, as the glass powder, the same glass container as the base glass container or a crushed glass container of the same kind of glass raw material.
Commercially available glass bottles are colorless and transparent, as well as brown, green, blue, dark green, yellowish green, etc.Glass powder as a decoration material is easy and inexpensive if crushed used or damaged glass bottles. Available at.

As described above, a large number of glass powders of arbitrary colors are superposed on the inner surface or the outer surface of the glass container, and 1 to 1 is placed in the heating furnace.
The temperature was raised to 750 to 850 ° C over 3 hours, and then 3
After holding for about 0 minutes to 3 hours, it is gradually cooled to room temperature over half a day to 3 days. The holding temperature and time are arbitrarily determined depending on the type of glass container and the intended use of the glass ornament to be obtained. The higher the temperature and the longer the time, the more the original shape of the glass container and glass powder is lost. Usually, it is held at 800 ° C. for about 1 hour. Also, the rate of slow cooling depends on the size of the product, and the larger it is, the longer it needs to be.

By changing the size of the glass powder,
It is possible to change the color tone, for example, if you make it 1-3 mm in size, you can give a transparent feeling, and 0.5
If it is less than mm, opacity can be provided. Also,
The present invention is applicable not only to glass containers but also to other glass products.

Example 1 A large number of glass powders obtained by crushing a brown beer bottle and sieving it into 1 to 3 mm were placed in a colorless and transparent dressing glass bottle, and the temperature was set to 800 ° C. in a heating furnace.
The temperature was maintained for 1 hour and 30 minutes for processing.

FIG. 1 shows the glass ornament obtained in Example 1,
It is an actual photograph taken by arranging a colorless and transparent dressing glass bottle before and after processing side by side. Further, FIG. 2 is a front photograph of the glass ornament, FIG. 3 is a side photograph, and FIG. 4 is a schematic sectional view thereof. As shown in FIG. 4, the glass bottle 1 is flatly deformed, and the glass powder is melted and sandwiched between the flattened glass bottles 1 to form an intermediate layer 2. The intermediate layer 2 is as shown in FIG. A dark brown internal pattern was formed.

(Example 2) A dark green whiskey bottle was crushed in a colorless and transparent dressing glass bottle, and the mixture was crushed for 1 to 3 times.
A large number of glass powders sieved to mm were put therein, and treated at a temperature of 800 ° C. for 1 hour and 30 minutes in a heating furnace in the same manner as above. FIG. 5 is a front view photograph of the glass ornament thus obtained.

(Example 3) In a colorless and transparent glass bottle,
A colorless transparent glass bottle was crushed, and a large number of glass powders sieved to 0.5 mm or less were put therein, and the temperature was kept at 800 ° C. for 1 hour and 30 minutes in a heating furnace for treatment. FIG. 6 is a front view photograph of the glass ornament thus obtained. In this case, the glass powder, which was colorless and transparent, was fused to the inner surface of the deformed glass bottle to become opaque and formed a substantially white pattern.

Example 4 A colorless and transparent glass bottle was once softened at 800 ° C. and gradually cooled, and then a dark green whiskey bottle was crushed into a large number of glass powders sieved to 1 to 3 mm. Was placed in the heating furnace and held again at 800 ° C. in the heating furnace for 1 hour. FIG. 7 is a plan view photograph of the glass ornament thus obtained. In this case, the glass powder was melted and adhered to the inner surface of the deformed glass bottle to form a green pattern having numerous irregularities.

(Embodiment 5) Two colorless and transparent jam bottles softened once and a dark green whiskey bottle were crushed to
Combine with many glass powders sieved to 3 mm and repeat 8
It was softened at 00 ° C. FIG. 8 is a front view photograph of the glass ornament thus obtained.

[0018]

The effects of the present invention are listed below. (1) It is possible to process various glass products such as glass containers into patterned glass ornaments made of fused glass powder regardless of their colors or shapes.

(2) Using a molded glass product and glass powder obtained by crushing a glass product without using a molding die, a glass product that is no longer needed is a new glass ornament with a rich color sense ( For example, it can be easily and economically recycled as a figurine or a wall material for buildings.

(3) A glass product that has become a defective product can be used as a base as it is, or even if it cannot be used as a base as it is, it can be crushed and used as a decorative material (glass powder), which can contribute to resource saving and energy saving.

(4) The tint can be changed even by changing the particle size of glass powder of the same color. (5) Glass powders of a plurality of colors can be freely combined and used.

(6) Since a glass product is used as a base and glassy glass powder having substantially the same coefficient of thermal expansion as that of the glass product is welded as a decoration material, cracks and breakages during cooling can be prevented.

(7) If the same glass product is placed in the same direction and heated, a glass ornament having substantially the same shape can be obtained, so that the same workability is obtained without using a molding die. (8) Only glass products and glass powder can be placed in a heating furnace for processing, so workability is good.

[Brief description of drawings]

FIG. 1 is an actual photograph of a glass decorative article obtained in Example 1 of the present invention and a colorless transparent glass bottle before processing, which are taken side by side.

FIG. 2 is a front view photograph of the glass ornament.

FIG. 3 is also a side view photograph.

FIG. 4 is a schematic sectional view of the above.

FIG. 5 is a front view photograph of the glass decorative article obtained in Example 2 of the present invention.

FIG. 6 is a front view photograph of a glass decorative article obtained in Example 3 of the present invention.

FIG. 7 is a plan view photograph of a glass decorative article obtained in Example 4 of the present invention.

FIG. 8 is a front view photograph of the glass decorative article obtained in Example 5 of the present invention.

[Explanation of symbols]

 1 glass container 2 intermediate layer of molten glass powder

Claims (3)

[Claims] 1. A plurality of glass powders of glassy material having substantially the same thermal expansion coefficient as that of the molded glass product, 60
A method for producing a glass decorative article, which comprises softening at a temperature of 0 to 900 ° C. to deposit glass powder on a glass product. 2. A molded glass product at 600 to 900 ° C.
After softening at a temperature of, a large number of vitreous glass powders having almost the same coefficient of thermal expansion as that of the glass powder are superposed thereon, and 600
A method for producing a glass decorative article, which comprises softening the glass powder on a glass product by softening at a temperature of from 900 ° C. 3. A glass container containing a large number of vitreous glass powders having substantially the same thermal expansion coefficient as that of 600 to 900.
A method for producing a glass decorative article, which comprises softening at a temperature of ℃ to crush a glass container and fusing glass powder such that the glass powder is sandwiched between crushed glass containers.