JPS59190239A - Production of glass wares having ceramic-like parts - Google Patents

Abstract

PURPOSE:Glassware is coated with a specifically composed and low-melting colored glass composition on its legs and base and baked to produce easily glassware with high decorative effects. CONSTITUTION:Glassware is coated with a low-melting colored glass composition having constitution described below on its legs or base and baked by heating at a temperature ranging from 500 to 700 deg.C at least for 1min to give glassware in which the bowl part is glass and the legs or base is like ceramic, thus giving excellent decorative effects. The colored glass composition is composed of 20-35wt% of SiO2, 40-55wt% of PbO, 5-30wt% of a pigment composed of a white pigment such as TiO2 and metal compounds of other colors and 1-20wt% of Na2O, K2O and other components which facilitates glassification, increases chemical resistance and controls the softening point.

Description

[Detailed description of the invention] The present invention relates to a method of manufacturing a glass product having a ceramic-like part.

Traditionally, glass products have been made by adding glass to the poles, legs, and immersion bases in order to diversify the items or to enhance their design effects. Although it was manufactured with careful attention to the shape, the main body was made of glass material itself, and the creation of shape changes could not be done using conventional printing methods alone. We are beginning to see the limits, and in terms of product
Rau - Ayumu, it wasn't added to the square, but it was 3.

The inventor of the present invention has discovered that glass has transparency 11. and Ceramic Rh have -) Glassware that combines opacity and opaque color in a design.ヅ１
In strong consideration of the need for Karasu products that have an unprecedented design effect similar to that of ceramics, we have developed a thermal expansion coefficient based on the large difference in thermal expansion coefficient in the characteristics of Karasu's ceramics. First of all, it is extremely difficult to thermally bond the glass and the ceramic itself! As a result of extensive research, we have completed a method that allows the production of desired glass products extremely simply and easily.

An object of the present invention is to provide a glass product in which the design effect of the joined body column with ceramics is further enhanced.

Furthermore, the main body 1, ν is made of a pole part or made of glass, legs and/or
Another object of the present invention is to provide a method by which a glass product having a ceramic-like shape, such as a glass Sudem 1 square, can be easily manufactured at low cost.

The gist of the present invention to effectively achieve the above object is to apply Si0. 20-35 Weight 96I)bo
40-55 weight% pigment 5-
A low melting point colored glass composition having a composition of 30% by weight and 1 to 20% by weight,
Bake under the following heat treatment conditions at a temperature range of 0.00"C for at least 1 minute."

Further, the glass products provided in the present invention are those made of ordinary soda lime silicate glass manufactured by a known manufacturing method, or glass products manufactured in the production process. 5i02 20-35 weight i at the desired location, such as the leg and 7' or the base.
jk QPbO40-55 Weight (111% Pigment 5-30 Weight Q.

Others A specific glass paint made by mixing a fine powder of a low melting point colored glass composition (hereinafter simply referred to as "glass composition") having a composition of 1 to 20 weight 'Q' with a vehicle and others, It is applied to the desired parts of the glass product, such as the legs and the base, and then introduced into a heating furnace, heated at 500 to 700°C for at least 1 minute, baked, and cooled. There is no reason why glass products are limited to soda lime silicate) or glass.

If the characteristics of the glass composition are further detailed, the coefficient of thermal expansion is 30 to 120 inches I O-'y'''C (5
The coefficient of thermal expansion of the glass of the glass product is 0 to 400°C), which is within the range of 0 to 15'', and its melting temperature is within the range of 500 to 650°C. It's convenient.

In addition, 1iif glass 'f11 composition (14-forming 5i
02 component 3・r-]ii1 is the ripe expansion of glass products and its melting! It is limited in relation to quality, etc., and if you exceed this range, it will be grilled ("i,,
The chemical resistance of the surface of the glazed coating is significantly lowered, and the softening point and expansion coefficient are increased, resulting in frequent occurrence of surface cracks.

J) [] The content of the ○ component is as specified by IUJ in 75 for the melting temperature of the ♀H product, the adjustment of glass viscosity during its melting, and the adjustment of white turbidity. The joint strength of the shingle decreases and surface cracks occur.

Is it raw on the surface? (ii) The formation of the coating may be difficult, and the surface light intensity may be reduced, or the chemical resistance may be reduced.

In addition, the h old component aims at the design effect of the ceramic V8 pottery Cl".
There are color-forming ingredients that make it look like a white colorant, and acids and
ratio titanium. One or more types of fluoride, such as difluoride, sodium fluoride, and JL sium, are generated components. The content is limited by the correlation between the thermal expansion coefficient of the glass ♀11 composition and its melting temperature, and if it deviates from this range, the bonding strength and chemical resistance of the coating will deteriorate. Not only does this result in a decrease in the quality of the product, but also cracks and surface water seepage occur in the coating itself, resulting in other inconveniences such as a deterioration in the quality of the product.

Other ingredients can be easily vitrified.

Used to improve chemical resistance and adjust soft 1 hit point.
They include Na2O, 20. B20-, Al2O3°Ca○2Mg○, ZrO2, etc. Also, in order to change the color of the ceramic-like parts and further improve the design effect, nickel oxide was added to some of the pigments.

Copper oxide, chromium oxide, cobalt oxide, iron oxide, manganese oxide + nonotomium 11111, selenium (Hika I,
A small amount of one or more different coloring agents such as aluminum, selenium, and cerium may be added.

The paint vehicle includes methanol (4 ethanol,
and ethyl cellulose, polyhinylbutyral, polyvinyl acetate, acetic acid rim ♀1 [Sumata nitric acid fiber ♀IE element.

Hinyl acecool, cochyl acrylate, polychloride Hinino L, alkyd (L) fat, silicone, gum arabic 9
One or two kinds of ceradine, turpentine oil, camphor oil, lavender oil, etc. can be effectively used, and 100 parts of the glass thread 11 composition is mixed with a weight of 10~ It is conveniently administered at the rate of 50 parts. The particular glass paint that has been adjusted has a viscosity of about 500 to 5000 centimeters per millisecond and a force to maintain the coefficient f1.

The condition 1 is determined by the correlation with the thermal transformation of the glass product, the bondability or surface condition of the FL covering. Below 500"CJ, sufficient bonding properties cannot be obtained, and above 700"C"2, the glass product itself deteriorates and the coating inevitably sag, resulting in a significant decrease in the product price. Uruko becomes seven.

In addition, the heat treatment time is limited by the correlation with the heat treatment temperature, and a heat treatment time of 1 minute or less will not provide sufficient bonding (η).A heat treatment time of 30 minutes or more is not particularly necessary. However, it is not preferable from the viewpoint of rijl, r-i, and ruki loss.

In the present invention, glass products gas and jiii 12
) Difference in thermal expansion coefficient between J lath composition: Is it smaller than that between ordinary porcelain and ceramics? J! ::η14
,+::,L;+J during heat treatment, especially during cooling.
'L' from ivy;i:54JJ 'J! It is possible to prevent this from occurring and to produce the desired product at a rate of 3.

Furthermore, it is not determined whether the method of applying the glass paint is a dipping method or a convenient method. Other well-known methods such as the Soufrui method and the handwriting method may also be used.

Next, one embodiment of the present invention will be described below.

(1) Si0.71.7 weight? 691,\l,o,],
1% by weight, CaO 108% by weight, Na; 0 14
, OLL'i'C%, K2O1,2 weight? . Tutara 1' No. 11 No. R-H Glass [Coefficient of thermal expansion -90 River 0-7. (゛〈100~450℃) Φ5
, (hi point -(-i38 ``C: :lΦy's stemware leg and stand 31; 5iO722 is 9 stones, I''
b○ 54% by weight, i"io, 12% by weight"Q.

A specific crow paint obtained by mixing 100 parts by weight of a white crow composition having 111 components of 5.3% by weight of B2O3 with 110 parts by weight of Hihikuno [-L-cinol 1-ethylcellulose] FB [Coefficient of thermal expansion -80Xi
O-7/”'C (I OCl-400”U)
Mr. Muraguchi ↓ 2 = 900 centipoise (22-C)] was applied using the dipping method, and then it was heated (introduced into the furnace and ladle f; 20
'C for 15 minutes.

Glass, the iJ1 parabolic coating has no surface water leakage, and the legs and base are ceramic-like, making it highly effective in design.

As described in detail above, the present invention can easily achieve the intended purpose of producing yM at low cost. The effect of being able to provide the most desirable crow products is particularly great.

Claims (1)

[Claims] (1) Apply a colored glass composition with the following composition to the legs and /...' or base of the glass product, and apply the following composition to the melting point colored glass composition, Baked under processing conditions for at least 1 minute (1!-J
Manufacture of glass products with ceramic-like parts characterized by
Z yen) 0 40-55 Weight Q pigment
5-30 Weight% Others 1-
20% by weight (2) Isu AI car J' i 0 = 1 temple N'l old approach and the range of ears and eyes (the method of writing).