JPS59197502A - Aromatic metal material and preparation thereof - Google Patents

Abstract

PURPOSE:To simply prepare a gradually releasable aromatic metal material adaptable as various metal product materials, by allowing a porous metal substrate obtained by a powder metallurgical method to absorb a non-aqueous perfume solvent solution while volatilizing a non-aqueous solvent from said substrate. CONSTITUTION:A metal such as nickel or copper or an alloy such as brass or a gun metal is melted, atomized and solidified in cooling water to be granulated and spherical particles each having a particle size of about 0.02-1.0mm. are further sorted to obtain a substrate stock material which is, in turn, subjected to compression molding in a mold while the molded one is sintered to obtain a porous metal substrate. Subsequently, this substrate is immersed in a non- aqueous perfume solvent solution prepared by dissolving about 20-30% of a perfume component in an alcohol solvent to easily absorb the perfume solution. In the next step, the above mentioned perfume solution-containing material is dried to volatilize the non-aqueous solvent and a gradually releasable aromatic metal material wherein the perfume component is held to the inner surface of each fine pore of the porous metal substrate can be easily obtained within a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sustained-release aromatic metal material that can be used as a material for various metal products, and a method for producing the same.

More specifically, aromatic metals can be obtained by taking advantage of the relatively strong properties of porous metals obtained by powder metallurgy and the absorbency and air permeability of their pores for non-aqueous perfume liquids. Regarding materials.

Conventional aromatic materials include those obtained by molding the aromatic agent itself into a predetermined shape, and those obtained by soaking and incorporating fragrance liquid into paper materials, synthetic resin materials, etc., but both are weak in strength. In addition, since the aromatic substance itself is exposed or leached on the surface of the product, it is not suitable for use as a contact member, and its uses are widely limited.

An object of the present invention is to provide an aromatic product component that exhibits properties that eliminate the drawbacks of these conventional aromatic materials.

Regarding porous metals obtained by powder metallurgy, a composition suitable as a basis for the aromatic metal 4J according to the present invention is obtained by the following method. That is, a predetermined metal material is dropped in a molten state, and while it is falling, air is blown from the side to atomize it, causing the metal material to scatter and solidify into large and small particles. These large and small particles further fall into cooling water (approximately 5° C.) and are rapidly cooled and hardened. The granules obtained in this way include those of various shapes and sizes, but among them, those exhibiting a particularly spherical shape are selected and further sieved to a fine grain (with a diameter of 0.02 mm).
The diameter of the base material is approximately 1.0 mmφ.

Next, the base material raw material is put into a predetermined mold and pressed into a predetermined shape. The molded product is sintered under predetermined conditions to obtain a metal base material. The metal base material thus obtained has a form in which the spherical particles of the base material raw material are attached to each other, and It has air pores that extend between each village. Note that if the granules do not have a spherical shape, the pores will be blocked at the corresponding portions and the air permeability will be lost.

The present invention is an aromatic metal material based on the porous metal described above, and has a structure in which a fragrance component is retained in an adhered form on the inner surface of each pore of the porous metal base. It is characterized by

In the present invention having the above-mentioned structural characteristics, the fragrance component is retained in each pore of the RHa, that is, in the metal matrix, while maintaining the high strength of the metal base material itself. There is no moist feeling on the surface due to the fragrance ingredients, so there is no moisture on the surface)
It can be used as a strong member and maintains its metallic luster. In addition, since the fragrance component is adhered to the inner surface of each of the air-permeable pores, it is possible to release the fragrance sufficiently and stably with sustained release.

In addition, raw metal materials for the aromatic metal material according to the present invention include, for example, nickel, copper, gold, etc., which can be produced as the above-mentioned porous metal base material by applying the above-mentioned powder metallurgy method. , a single metal such as silver, or an alloy such as brass or gunmetal can be used as appropriate depending on the purpose.Next, the method for manufacturing a double-stranded aromatic metal material will be explained. The above-mentioned powder metallurgy method (absorbing a non-aqueous solvent perfume liquid from the surface of the porous metal base material obtained from the above-mentioned powder metallurgy method (g), and then volatilizing the non-aqueous solvent of the above-mentioned non-aqueous solvent perfume liquid. The special feature is

In the manufacturing method according to the present invention having the constitutional feature 1, the non-aqueous solvent perfume liquid can be applied by dissolving a suitable perfume component in an alcohol solvent, for example, 20 to 60% of the perfume component, It can be used by mixing 70% ethyl alcohol and 0.6% glycerin as a humectant to form a solution.

This non-aqueous solvent perfume liquid such as an alcohol solvent is almost instantaneously absorbed into each of its pores from the surface of the porous metal substrate. Therefore, in the process of absorbing the perfume liquid, the specific means to be applied is not only the dipping method, but also simple means such as a dropper or an atomizer.

In addition, the operation time Vh required for the absorption process of the above perfume liquid is
In the conventional aromatic materials mentioned above, especially those based on synthetic resins,
This is a significant difference compared to the several hours required to absorb the perfume liquid, and since the perfume liquid is absorbed in such a short time, there is no residue left on the surface of the porous metal substrate. Therefore, as described above, the surface of the obtained aromatic metal material can maintain its original metallic luster without being wetted by the perfume liquid.

In addition, in the above-described perfume liquid absorption step, the perfume liquid permeates throughout the +FJ porous metal substrate based on the air permeability of each pore. Therefore, the fragrance component is effectively distributed to the porous metal substrate, and this effectively affects the sustained release properties and fragrance persistence of the resulting aromatic metal material.

Next, for the above-mentioned perfume liquid-containing material, when the non-aqueous component of the perfume liquid is volatilized by natural drying, heat drying, etc., the perfume components in the perfume liquid are removed and adhered to the inner surface of each pore. At the same time, each of the pores is again ensured to be air permeable.

Thus, as described above, the obtained aromatic metal material produces a sustained, sufficient, and stable fragrance.

Note that the fragrance period varies depending on the concentration of fragrance components in the applied fragrance liquid, and the fragrance can usually be maintained for 10 days.

As mentioned above, the method for producing aromatic metal materials according to the present invention uses simple equipment and can be carried out in a short time with simple operations. It can also be used to restore fragrance.

As described above, the aromatic metal material according to the present invention has a wide range of applications because its aromatic property is extremely easy to maintain continuously.

The aromatic metal material constructed as described above can be used as a component material for door knobs, umbrella handles, various switch buttons, etc., which require relatively high toughness and contactability. It is used as parts for accessories such as pendants, brooches, tie pins, and cufflinks.

Example 1 Spherical particles with a diameter of 0.02 to 1.0 mm obtained by atomization were selected, and each of these particles was compression-molded using a press, and then molded at a temperature of 900°C. Sintered over time to create porous plate material (20X10X0.5 (Kaku))
I got it.

For this plate material, 1 cc of mixed fragrance liquid containing 30% fragrance ingredients, about 70% ethyl alcohol, and 0.3% glycerin
was instantly absorbed from the surface using a dropper, and then air-dried for about 30 minutes to volatilize the ethyl alcohol content to obtain an aromatic metal material. This aromatic metal material retains a stable fragrance for more than 10 days. It was shown freely.

Example 2 Spherical particles of copper with a size of 0.02 to LQmmφ obtained by atomization were selected, and each of these particles was compression molded using a press at a temperature of 800°C for 2 hours. Sintered, porous plate material (20X10X0.5 (mm)
) was obtained.

This plate-shaped material contains 30% fragrance ingredients and approximately 70% ethyl alcohol. % and glycerin 0.3% mixed fragrance liquid j
The cc was instantly absorbed from the surface using an atomizer, and then the ethyl alcohol content was volatilized by heating and drying at 40° C. for 115 minutes to obtain an aromatic metal material.

This aromatic metal material exhibited a stable fragrance for 10 days in a sustained manner.

Claims (2)

[Claims] (1) An aromatic metal material characterized by a structure in which a fragrance component is adhered to the inner surface of each pore of a porous metal base material obtained by a powder metallurgy method. (2) Absorbing a non-aqueous solvent perfume liquid from the surface of the porous metal base material obtained by a powder metallurgy method, and then volatilizing the non-aqueous solvent of the non-aqueous perfume liquid. A method for producing an aromatic metal material characterized by: