JPH09187493A - Gel-like deodorizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently and always stably deodorize both acidic and alkaline malodors by preparing a gel-like deodorizer by dispersing a composite adsorbent carrying a laminar clay mineral on a powdered carrier in a water gel. SOLUTION: This deodorizer with excellent deodorizing effect to malodors such as ammonia and hydrogen sulfide is prepd. by dispersing a composite adsorbent carrying a laminar clay mineral on a powdered carrier in a water gel. As this laminar clay mineral, natural or synthetic laminar aluminosilicates are cited and e.g. montmorillonite, pyrophyllite, talc, kaolin, fraipontite, etc., are used. In addition, as the powdered carrier, finely powdered silica, finely powdered alumina, etc., are used. In addition, as the gelling agent, carageenan, gellan gum, agar-agar, gelatin, guargum, pectin, locust-beam gum, xanthanegum, sodium alginate or cellulose derivative is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gel deodorant, and more particularly to a gel deodorant having an excellent deodorizing effect against bad odors such as ammonia and hydrogen sulfide.

[0002]

2. Description of the Related Art Conventionally, a large number of deodorants and deodorants (hereinafter, both are collectively referred to as "deodorants / deodorants") for removing the malodors around us have been provided. It is divided into the following two types.

First, there is known a deodorizing agent which contains a component having a physical adsorption ability such as activated carbon in a breathable bag or container and removes a malodorous component by physical adsorption. However, this type of physically adsorbing deodorant has a drawback that the life of the deodorant, that is, the end point of the deodorizing action is difficult to understand.
In addition, this type of deodorant generally uses powdery components, and there is a problem that the form of the deodorant is limited.

On the other hand, there is also known a deodorant in which a component that reacts with a malodorous component such as a plant extract or an organic acid salt is mixed in the composition and gelled with a gelling agent. This type of chemical reaction type deodorant does not have the above-mentioned drawbacks and problems, but there is no deodorant component that is highly effective against both acidic and alkaline malodors, and a combination of multiple components is required. In addition, or in order to obtain a sufficiently high deodorizing effect, a large amount of deodorizing component is required, and there is a drawback that the cost becomes high.

[0005]

The object of the present invention is to solve the above-mentioned drawbacks of the physical adsorption type deodorant and the chemical reaction type deodorant, and to combine the advantages of both types of deodorant / deodorant. And to provide a new type of deodorant.

[0006]

Means for Solving the Problems In order to solve the above problems, the present inventor has conducted diligent research on a deodorant / deodorant, and as a result, a gel formulation was used as a base material and an adsorbing type deodorant component was used as the deodorant component. It was thought that a highly economical deodorant can be obtained by using the deodorant. However, conventionally-known adsorption-type deodorizing components such as activated carbon were not adsorbed by the adsorbed deodorant components such as gel preparations which were adsorbed first in a system containing water or oil.

[0007] Therefore, further searching was conducted for deodorant / deodorant components capable of exhibiting their action even in a solution. It was found that a specific composite material containing a layered clay mineral as an adsorbent component satisfies this condition. And completed the present invention.

That is, the present invention provides a gel deodorant obtained by dispersing a composite adsorbent in which a layered clay mineral is supported on a powder carrier in a water gel.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A composite adsorbent, which is an active ingredient of the deodorant of the present invention, is a layered clay mineral supported on a powder carrier.

Examples of the layered clay mineral include a natural or synthetic layered aluminosilicate in which several to several tens of layers each having a two-layer structure of an octahedral layer and a tetrahedral layer are stacked,
Examples thereof include montmorillonite, pyrophyllite, talc, kaolin, frypontite and the like. As this layered clay mineral, it is preferable to use one that has been miniaturized by grinding or the like.

As the powder carrier for supporting the layered clay mineral, fine powder silica, fine powder alumina and the like can be used.

In the production of this composite adsorbent, the layered clay mineral and the powder carrier are mixed, for example, in a ratio of about 1: 1 and, if necessary, an appropriate solvent is added, followed by sufficient stirring. Just mix.

As the composite adsorbent, a commercially available product, for example, a composite of metal aluminosilicate metal salt microcrystals and silica microparticles marketed under the trade name of Mizukanite HP may be used. This Mizukanite is, for example, 5 Zn
It is a composite of zinc-containing synthetic aluminosilicate called flypontite, which can be represented by O.Al ₂ O ₃ .3SiO ₂ .5H ₂ O, and amorphous silica.

The deodorant of the present invention is produced by mixing the above-mentioned composite adsorbent with an appropriate amount of water and a gelling agent, and gelling the mixture according to a conventionally known method. Specifically, it can be produced by heating and mixing a gelling agent, a composite adsorbent, and various additives as necessary with water, and then putting the mixture in a mold having a predetermined shape and cooling.

The compounding amount of the composite adsorbent in the gel is not particularly limited as long as it does not affect the gel structure, and can be appropriately compounded depending on the purpose of use.

On the other hand, known gelling agents such as carrageenan, gellan gum, agar, gelatin, guar gum, pectin, locust bean gum, xanthan gum, sodium alginate, and cellulose derivatives can be used as the gelling agent for forming a gel.

Examples of various additives in the gel include glycols such as ethylene glycol and propylene glycol as a dispersant, alkali metal salts such as sodium chloride as a gel strengthening agent, and alkalis such as calcium chloride. Examples include earth metal salts.

Further, as a preservative, a quaternary ammonium salt such as chloroisothiazole, a benzoate such as sodium benzoate, a benzophenone compound as an ultraviolet absorber,
Furthermore, other chemicals such as dyes, fragrances, and other deodorants such as plant extracts can be blended.

Although an oil-based gel in which a limonene or a paraffinic solvent is used as a carrier and which is gelled with a fatty acid is known, a water gel is more effective for the deodorant of the present invention. .

Since the deodorant thus obtained is a water gel, the composite adsorbent in the gel is exposed as the water contained in the gel evaporates and exerts its action, so that the deodorant is exerted over a long period of time. The effect lasts. When the water in the water gel is completely evaporated, the gel contracts and the gel color changes to whitish, so the life of the deodorant can be easily determined.

[0021]

The composite adsorbent used in the present invention physically and chemically adsorbs an acidic or basic malodorous substance due to the solid basic and solid acidic properties of the aluminosilicate two-layer structure. is there. Since the deodorant of the present invention has this composite adsorbent dispersed in a water gel, the composite adsorbent on the surface acts initially, but the water in the gel volatilizes with use, and the gel is When the gel shrinks or cracks, a new composite adsorbent is exposed from the inside of the gel, so that the deodorant effect is stable from beginning to end.

[0022]

EXAMPLES The present invention will be described in more detail with reference to Examples and Test Examples, but the present invention is not limited to these Examples and the like.

Examples Gel Deodorant: A gel deodorant having the composition shown in Table 1 below was prepared according to a conventional method.

[0024] * Mizukanite HP (pore volume 0.45 ml / g, specific surface area 300 m ² / g) ** Fresh Shiraimatsu FS-500M (Shiraimatsu Shinyaku Co., Ltd .; tea extract)

Test Example Deodorization Test: The present invention products 1 to 4 and the comparative product prepared in the example were cut into cubes of 2 cm square, which were used as test samples. One of the test samples was placed in a 3 liter desiccator, and ammonia and hydrogen sulfide were injected as a malodorous gas.

The concentration immediately after the malodorous gas was injected (initial concentration) and the concentration after 1 hour were measured using a detector tube, and the deodorizing rate was calculated by the following formula. Table 2 shows the results.

[0027]

[0028]

As is clear from these results, the gel deodorant using the conventional plant-extracting deodorant solution gives an insufficient deodorizing effect, but the deodorant of the present invention almost completely removes it. Adsorbed a foul odor.

[0030]

The gel deodorant of the present invention efficiently deodorizes and deodorizes both acidic and alkaline malodors, and its effect is stable and persistent all the time. Therefore, it is effective in a small amount as compared with other deodorizing / deodorizing agents, and since it is a gel-like deodorizing agent, the reduction of gel is a guideline for the end point, which is convenient in use. that's all

Claims (4)

[Claims] 1. A gel deodorant obtained by dispersing a composite adsorbent in which a layered clay mineral is supported on a powder carrier in a water gel. 2. The gel deodorant according to claim 1, wherein the layered clay mineral is a natural or synthetic layered aluminosilicate, and the powder carrier is fine powder silica or fine powder alumina. 3. The gel deodorant according to claim 1, which is obtained by mixing a composite adsorbent in which a layered clay mineral is supported on a powder carrier, water and a gelling agent, and gelling the mixture. . 4. The gelling agent is carrageenan, gellan gum, agar, gelatin, guar gum, pectin, locust bean gum, xanthan gum, sodium alginate or a cellulose derivative.
The gel deodorant according to any one of the items.