JPH0845302A - Gaslight mantle and its manufacture - Google Patents

Abstract

PURPOSE:To provide a gaslight mantle emitting reddish pink light and its manufacture. CONSTITUTION:Material containing thulium as a main component is supported with a mesh carrier 1 so as to form a gaslight mantle. Mesh carrier material is impregnated with the solution 3 of the material containing the thulium as the main component, and is dried. Thereafter, the same is fixed to a seating ring in an organic support-capping state, and is baked so that the organic support is burnt to ashes. Thereby, it is possible to provide beautiful reddish pink light generation. Further, its production process is simple so that the production cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mantle for a gas lamp which emits a pink red color, and a method for manufacturing the same.

[0002]

2. Description of the Related Art Heretofore, flower gas has been known as a method of decoratively coloring and emitting light of a gas flame. However, flower gas merely expresses a pattern with flames, and it is nothing more than what utilizes the so-called flame reaction, in which a color developing agent is put into the flame to directly develop color, and Coloring does not last forever without replenishment. In addition, a gas lamp mantle is also known as a device that uses flames indirectly to continue coloring and emitting light permanently. For example, it has been proposed that an organic fiber is impregnated with a thorium compound, and the organic fiber is fired, or a fiber having alumina and silica as a main component is formed into a net shape.

[0003]

However, in the case of using the former thorium compound, the main purpose is lighting rather than decorativeness, and there is a difficulty in manufacturing, so that in Japan, we rely solely on imports, and The cost is also high. Also,
The latter uses fibers containing alumina and silica as the main components, and therefore has a problem of high manufacturing cost. In addition, in all of these conventional gas lamp mantles, the emitted light is limited to almost yellowish white and is a little monotonous in terms of the aesthetic effect. Was required. Therefore, the present invention provides a mantle for a gas lamp, which is rich in decorativeness, can be expected to have a high degree of fashionability in combination with other colors, has low manufacturing cost, is safe, and has beautiful colored light. The purpose is to

[0004]

The present invention has been made to solve the above-mentioned problems, and the above-mentioned problems are solved by the means described below. That is, the present invention provides a mantle for a gas lamp, characterized in that a reticulated carrier is loaded with a substance containing thulium as a main component (emission center matrix). As the substance containing thulium as a main component, usually thulium oxide (Tm2O3) can be used. Furthermore, the present invention comprises impregnating a reticulated carrier material with a solution of a material containing thulium as a main component,
After drying this, it is fixed to a pedestal ring in a state of being capped on an organic support, and the organic support is ashed and burned off by burning the organic support to provide a method for manufacturing a gas lamp mantle. It is provided. As a solution of a substance containing thulium as a main component, thulium can be used as a solution in the form of a salt of an organic acid such as acetic acid or a salt of an inorganic acid such as nitric acid.

[0005]

According to the mantle for a gas lamp of the present invention, by heating the mantle to the incandescent temperature with a flame, it is possible to obtain a beautiful pink-red light emission which has never been seen.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to illustrated embodiments showing the manufacturing process of a gas lamp mantle. FIG.
FIG. 4 shows a manufacturing process of the mantle primary molded body 1 of the gas lamp mantle according to the present invention. That is, in the step of (a) of FIG. 1, a cotton thread as a carrier material is formed into a cylindrical shape by front knitting and cut into an appropriate length,
Then, as shown in FIG. 1B, one end thereof is ligated. Then, as shown in (c) of FIG. 1, the mantle primary molded body 1 is made by turning it over so that the ligated portion is hidden behind.

In this case, the thickness of the cotton yarn is appropriately selected in consideration of the mechanical strength of the mantle primary molded body 1 or the final product. Further, the method of knitting the cotton yarn is not limited to the front koshiko knitting, and can be arbitrarily selected as long as it can obtain an appropriate mechanical strength. Also, the mantle primary molded body 1
The shape of is not particularly limited, and may be any shape such as a dome shape and a conical shape.

This mantle primary molding 1 is shown in FIG.
As shown in FIG. 2, the container 2 is immersed in a solution (luminous solution) 3 of pure water in the form of an organic acid salt or an inorganic acid salt of thulium for a predetermined time, whereby thulium is added to the mantle primary molded body 1. Impregnate. The mantle primary molded body 1a impregnated with thulium (thulium impregnated in the form of an organic acid salt or an inorganic acid salt) is then applied to the shape-retaining body 6 which is previously fixed to the pedestal 5 as shown in FIG. Crowned, pedestal 5
Fixed to. This shape-retaining body 6 is used to retain the shape of the mantle primary molded body 1 without buckling in the firing step, and is shaped in a small size in advance to resemble the mantle primary molded body 1 in a later firing step. A material that can be burned out is used.

Oil paper can be used as an example of such a material, but other materials can also be used as long as they meet the above conditions. Then, these are baked in a furnace such as an electric furnace at a suitable temperature for a suitable time, and as a result,
A desired gas lamp mantle (mantle secondary molded body) can be obtained.

If necessary, the mantle secondary molding 1b taken out of the electric furnace as shown in FIG.
It is also possible to burn again by erasing etc. to completely burn off the remaining ash. Further, thereafter, in order to reinforce the mechanical strength of the gas lamp mantle, a reinforcing material may be coated by spraying or the like. In addition, it is preferable that the concentration of the organic acid salt or the inorganic acid salt of thulium in the luminescent liquid be as high as possible in order to enhance the emission intensity and the mechanical strength.

(Example 1) American cotton cone-shaped 60/2 count twin yarns were machine-knitted into a cylindrical shape by front knitting and were degreased with a dilute alkaline solution or dilute acid solution.
After drying this at 110 ° C., for example, it is cut to an appropriate length, for example, 10 cm, and one end is ligated,
A mantle primary molded body was obtained so that the inside-out ligated portion was hidden behind.

On the other hand, thulium nitrate or acetate (9
High purity of 9.9% or more) 0.1-0.5M with ultrapure water
(Mole concentration) to obtain a luminescent solution, transfer the luminescent solution to a container, and immerse the mantle primary molded body in the luminescent solution of the container for a predetermined time, thereby sufficiently filling the mantle primary molded body with the luminescent solution. Infiltrated. Then, the primary molded mantle was taken out of the container and naturally dried at room temperature.

On the other hand, a shape-retaining body was obtained by molding it in the shape of a light bulb using oil paper, and its base was fixed to a pedestal ring made of alumina or silica. The shape-retaining body 6 has a shape similar to that of the primary molding 1 of the mantle, and is formed to be slightly smaller in dimension. In this manner, the shape-retaining body previously fixed to the pedestal was capped with the naturally dried primary molding of the mantle, and its base was fixed to the pedestal 5 using the Fe—Ni steel wire.

Next, the surface of the primary molding of the mantle was coated with a brush or the like using a liquid having the same composition as the above luminescent liquid. Then, the whole of them was heated from room temperature to about 1000 ° C. in a furnace such as an electric furnace and baked at a temperature of about 1000 ° C. for an appropriate time, for example, 1 hour. During the temperature rising and firing, the mesh-shaped mantle primary molded body 1 was directly ceramicized in the form of an oxide (Tm2O3) (secondary molded body), and the shape-retaining body made of oil paper was burned off leaving ash.

After that, the secondary molding of the mantle was taken out of the furnace, the residual ash was burned off by, for example, a Bunsen burner flame, and after cooling to room temperature, the secondary molding of the mantle was sprayed with a binder from the outside. The binder is used to supplement the mechanical strength of the secondary molded mantle, and for example, a polymer material such as vinyl acetate emulsion is used. As a result, the target gas lamp mantle could be obtained. The reinforcement with the binder is made as needed and is not essential.

Next, a luminescence test was conducted on the obtained gas lamp mantle, and the following results were obtained. Emission color: pink red In XYZ color system: x = 0.5895; y = 0.
3334 Luminance: 2000 (cd / m2) Main wavelength: 611 (mm) As a result of a durability test, it was confirmed that light emission can be maintained for about 6 months under normal night lighting.

[0017]

As described above, according to the gas lamp mantle of the present invention, it is possible to obtain beautiful light emission of pink red which is not seen in the conventional gas lamp mantle. Further, the material is not particularly expensive, the process is simple, and the manufacturing cost is advantageous.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a manufacturing process of a primary molded body of a gas lamp mantle according to the present invention.

FIG. 2 is a diagram for explaining a process of impregnating a primary molded body of a gas lamp mantle with a luminescent liquid according to the present invention.

FIG. 3 is a diagram illustrating a manufacturing process of a secondary molded body for a gas lamp mantle according to the present invention.

FIG. 4 is a diagram illustrating a final manufacturing process of the gas lamp mantle according to the present invention.

[Explanation of symbols]

 1 ... Mantle primary molded body 2 ... Container 3 ... Solution (luminescent liquid) 5 ... Pedestal 6 ... Shape-retaining body

Claims (3)

[Claims] 1. A mantle for a gas lamp, comprising a reticulated carrier supporting a substance containing thulium as a main component. 2. The mantle for a gas lamp according to claim 1, wherein the substance contains thulium oxide as a main component. 3. A reticulated carrier substance is impregnated with a solution of a substance containing thulium as a main component, dried, and then fixed to a pedestal ring in a state of being capped on an organic support and baked. A method for producing a mantle for a gas lamp, which comprises ashing and burning out the organic support.