JPH0733549A - Production of container of aromatic - Google Patents

Abstract

PURPOSE:To produce a large amount of containers of an aromatic having regulated size and shape. CONSTITUTION:Powder obtained by drying a dolomite-based substance is added to an olefinic resin, kneaded, uniformly dispersed and injection molded into a shape of container. The molded articles are baked at a high temperature and a gas generated by thermal decomposition of the olefinic resin is volatilized to give porous containers. Containers having regulated size and shape can be produced due to the injection molding.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for producing a fragrance container.

[0002]

2. Description of the Related Art Generally, an fragrance container is used in which a stored liquid fragrance is soaked in because it is necessary to promote volatilization of the fragrance and to satisfactorily aroma it. A conventional fragrance container uses a dolomite-based substance as a raw material, and after the dolomite-based substance is formed into a container shape, it is heated to 900 to 1000 ° C. and baked. By such firing, the dolomite-based substance is thermally decomposed to generate carbon dioxide gas. The volatilization of this gas causes the entire container to become porous, allowing the perfume to permeate due to the capillary phenomenon.

[0003]

The conventional fragrance container has a difficulty in forming the container shape, and there is a limit in improving productivity. Further, the size and shape of the container are likely to vary, it is difficult to make the shape and size uniform according to the standard, and the yield is also poor.

The present invention has been made in consideration of the above circumstances, and can be rapidly molded into a container shape, and the shape,
An object of the present invention is to provide a method for producing an air freshener container that can be molded in a uniform size.

[0005]

[0006]

According to the method for producing a fragrance container of the present invention, a dried dolomite material and an olefin resin are kneaded, and the kneaded product is injection molded into a container shape,
It is characterized by firing at high temperature.

[0007]

The dolomite-based substance used in the present invention is in a dried state, and is mixed with the olefin-based resin in a pellet form or a pulverized powder form. As the olefin resin, one or more of ethylene vinyl acetate copolymer, polyethylene and the like are mixed and used. The olefin resin is granular and the dried dolomite material is put into the resin and mixed. The mixing ratio is 5 to 20% by weight of the olefin resin, and 80 to 95% by weight of the dolomite material. The mixing is performed in a room temperature atmosphere, for example, for about 10 to 20 minutes to uniformly disperse the olefin resin.

Next, this mixture is injection-molded into a predetermined shape. The injection molding can use normal injection molding, and after injection into the cavity of the mold, it is cured and taken out. The molded body taken out is conveyed into a sintering furnace and fired. The firing temperature is preferably 800 to 1000 ° C., and the olefin resin is thermally decomposed by being exposed to this temperature atmosphere for about 60 minutes to be gasified and volatilized. The volatilization of this gas and the carbon dioxide gas volatilized by the thermal decomposition of the dolomite-based substance volatilize the molded body to allow the permeation of the fragrance due to the capillary phenomenon.

With such a construction, a dolomite-based substance mixed with an olefin resin is injection-molded to form a container-shaped molded body, so that a large amount of molding can be performed in a short time. Further, since the injection molding is performed in the cavity, the supply amount becomes constant, the variation in weight is reduced, and the shape can be made uniform.

[0010]

[Example] As a dolomite-based substance, a product name "Hakuneite" is selected, and this dolomite-based substance is heated at a temperature of 150 to 200 ° C.
It was dried by air-drying underneath. The dried dolomite type substance 1 was pulverized into a powdery state having a particle size of about 1 to 5 liters, and this dolomite type substance was put into an ethylene vinyl acetate copolymer. This ethylene-vinyl acetate copolymer was a powder, and the ethylene-vinyl acetate copolymer was uniformly dispersed by mixing it with a dolomite-based substance. In this case, the compounding ratio of the dolomite-based substance is 85 to 95.
The ethylene vinyl acetate copolymer is 5 to 5% by weight.
It was 20% weight ratio.

After the mixing was completed, the mixture was put into a filling machine of an injection molding machine and injection molding was performed. By this injection molding, a container-shaped molded body 1 having a diameter of 40 〓 and a height of 50 〓 is molded. The weight of the injection-molded body 1 is 112.3 g.
Within the range of ± 112.6 g, there was little variation in weight. Further, all the molded bodies 1 had the same size and the same shape.

The injection-molded body 1 is then fired.
For firing, the compacts are arranged in a sintering furnace such as an electric furnace, and the temperature is raised to 950 ° C. at a temperature rising rate of 0.5 ° C./sec.
The heating was carried out for 60 minutes in an atmosphere of ℃ ± 960 ℃. By such firing, the ethylene-vinyl acetate copolymer is thermally decomposed to become carbon dioxide gas and volatilizes from the molded body, and together with the volatilization of carbon dioxide gas that thermally decomposes and volatilizes the dolomite-based substance itself, the entire molded body 1 is formed. Became porous. The porosity was measured and found to be 20%. The weight is 89.
It was 2 g ± 89.6 g, and there was no weight variation due to firing.

On the lower part of the container fired in the above steps, the filler 2 is applied from the bottom to a depth of 15 ㎓, and heated again in the sintering furnace in the atmosphere of 1100 to 1200 ° C for 30 to 4
It was performed for 0 minutes, and a honey portion was formed by this firing. And
When the liquid alcohol-based aromatic fragrance 3 was filled to a depth of 10 〓 and the lid 4 was closed and the fragrance was inspected, the fragrance 4
Diffused inside the container and diffused uniformly from the whole. Therefore, the fragrance was in a good state.

[0015]

As described above, according to the present invention, a dolomite material is kneaded with an olefin resin and molded into a container shape by injection molding. Therefore, rapid molding is possible and mass production is possible. The container can have a well-formed shape such as thickness.

[Brief description of drawings]

FIG. 1 is a perspective view of a container according to the present invention.

FIG. 2 is a sectional view of the same.

[Explanation of symbols]

 1 molded body 2 Yuyu 3 fragrance 4 lid

Claims (1)

[Claims] 1. A method for producing an aromatic container, which comprises kneading a dried dolomite-based substance and an olefin-based resin, injection-molding the kneaded product into a container shape, and then firing at a high temperature.