JP2001157706A - Gel deodorant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a deodorant at a low cost, which solves the problem in a deodorant that absorbs and removes malodor component or a deodorant that removes malodor component by a chemical reaction. SOLUTION: Preferably, carbon or silica adsorbent which is finer than 100 meshes is dispersed in the gel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, many deodorants and deodorants have been proposed for removing bad odors generated in toilets, rooms, refrigerators, cars and the like. These are mainly divided into two types.

[0003] First, a deodorant of the type which stores granular materials having physical adsorption capacity such as activated carbon and zeolite in a breathable bag or container and adsorbs and removes malodorous components (hereinafter referred to as "adsorbent deodorant"). )It has been known. Although this adsorptive deodorant has an excellent deodorizing action, there is a problem that the life of the deodorant, that is, the end point of the deodorizing action is not known, and the time to replace the deodorant is forgotten. In addition, since this type of deodorant uses particulate matter as an adsorbing component, its form is limited, and it has never been good in terms of aesthetic appearance.

On the other hand, a deodorant which deodorizes a malodorous component such as a plant extract by a chemical reaction is known (hereinafter, referred to as a "reactive deodorant"). Since this type of deodorant is a liquid, it is used by impregnating filter paper, a porous body, or the like, or by using a gelling agent to form a gel. However, there are few deodorant components that are highly effective against both acidic and alkaline odors, and it is necessary to combine multiple deodorant components in order for a reactive deodorant to be effective against both odors. there were. Also, the reaction components used in this type of deodorant are generally expensive, and a large amount of deodorant components are required to obtain a sufficiently high deodorant effect, so that the cost of the deodorant product is high. There was a disadvantage of becoming.

The present applicant has developed a gel-type deodorant in which a composite adsorbent is dispersed in a gel as a solution to the above-mentioned problems of the adsorbent deodorant (Japanese Patent Laid-Open No. 9-187493).
issue). This gelled deodorant solves the problem that the end point of the deodorizing action of the adsorbent deodorant is not known and the problem that the form is limited, and the deodorizing effect was excellent, but the composite adsorbent itself was There is another problem that it is expensive and the cost of the product is unavoidable.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an inexpensive deodorant which has solved the disadvantages of an adsorbent deodorant and a reactive deodorant.

[0007]

Means for Solving the Problems The present inventors have made intensive studies on deodorants and deodorants in order to solve the above-mentioned problems. Therefore, the use of a gel preparation as a base material and a conventionally known adsorption type such as activated carbon as a deodorizing component described in the specification of JP-A-9-187493 was reexamined. As a result, the present inventors have found that a specific adsorbent and a gelling agent are selected, and that a gel deodorant produced by combining these can solve the above-mentioned problems, and finally completed the present invention.

That is, the present invention provides a gel-like deodorant obtained by dispersing a carbon-based or silica-based adsorbent in a gel.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As an active ingredient of the gel deodorizer of the present invention, a carbon-based or silica-based adsorbent is used.
Among them, examples of the carbon-based adsorbent include activated carbon such as coconut shell activated carbon, charcoal such as Bincho charcoal, and bamboo charcoal. Examples of the silica-based adsorbent include silica gel and various zeolites. These can be used alone or in combination of two or more. However, activated carbon alone or a combination of activated carbon and charcoal such as Bincho charcoal is preferable in terms of price and deodorizing ability.

As the carbon-based or silica-based adsorbent (hereinafter, abbreviated as "adsorbent"), those having a particle size of 100 mesh or more (finer than 100 mesh) are preferably used. If the particle size is larger than 100 mesh, it is difficult to form a gel, and even if a gel is formed, activated carbon particles precipitate, resulting in poor appearance and poor deodorizing performance.

The amount of the adsorbent used in the deodorizer of the present invention is not particularly limited as long as it does not affect the structure of the gel, and can be appropriately added according to the purpose of use.

On the other hand, gelling agents used in the production of the gelled deodorant of the present invention include carrageenan, gellan gum, agar, gelatin, guar gum, pectin, locust bean gum, xanthan gum, sodium alginate, cellulose derivatives and the like. Things can be used. Among these, those using carrageenan as a gelling agent,
It is particularly preferable because the deodorizing effect is higher than that using other gelling agents.

Further, in order to obtain the gelled deodorant of the present invention, since the adsorbent is in powder form, it is desirable to use a dispersant in the production thereof. Examples of the dispersant include glycols such as propylene glycol and ethylene glycol.

Various additives can be added to the deodorized gel of the present invention to such an extent that the formation of the gel is not affected. Examples of the various additives include alkali metal salts such as sodium chloride as a gel reinforcing agent, and alkaline earth metal salts such as calcium chloride. In addition, deodorant components such as preservatives, ultraviolet absorbers, organic acid salts, pigments, fragrances, and other plant extracts can be mentioned.

The gel deodorant of the present invention can be prepared by a known method. As a more preferable method, the following method is exemplified. That is, the adsorbent and the gelling agent, which are powdery substances, are first dispersed by the dispersant. Water is added to the mixture, and the mixture is heated and stirred to form a uniform solution. The gel deodorant of the present invention can be obtained by pouring this solution into a container and cooling. It is not preferable to prepare a gel-like deodorant without dispersing the gelling agent or the adsorbent, because a gel cannot be formed or the appearance and deodorizing effect of the gel become poor.

[0016]

The gel deodorizer of the present invention is obtained by dispersing the adsorbent in the gel, so that the odor is first deodorized by the adsorbent on the surface. The new adsorbent is exposed from the inside of the gel due to shrinkage and cracking of the gel.

The gel deodorizer of the present invention can use an adsorbent having a finer particle size than a conventional deodorant using a granular material, so that an excellent deodorizing effect can be obtained. . That is, since the adsorption type deodorant deodorizes a bad odor by physical adsorption of the adsorbent, the chance of contact with the bad odor is increased, that is, the larger the surface area, the greater the deodorizing effect. Since the conventional deodorant using granular material is used in a bag or a container as described above, an adsorbent having a small particle size such as a powdery material cannot be used. Although a deodorant with a coarse particle size of less than the mesh is used, in the present invention, since the gel is formed, an adsorbent with a fine particle size of 100 mesh or more can be used, and the deodorant has a higher deodorizing effect.

[0018]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention.

EXAMPLE 1 Powdered activated carbon (average mesh 300) 1.5 as an adsorbent
g, 2.5 g of carrageenan was used as a gelling agent and dispersed using 5.0 g of ethylene glycol. After adding 90 g of water to the dispersion, the mixture is heated to 80 ° C. and stirred.
0.5 g of sodium chloride was added as a gel strengthener. After sufficient stirring, the mixture was poured into a molding container on a cup and cooled to room temperature to obtain a gelled deodorant of the present invention. When this gelled deodorant composition was placed in a toilet room, the gel showed a deodorizing effect for about one month. After one month, the gel shrank and became firm, so that the end point of the deodorizing effect could be easily determined.

COMPARATIVE EXAMPLE 1 2.5 g of carrageenan was used as a gelling agent and dispersed using 5.0 g of ethylene glycol. Water 9
After adding 0 g, the mixture was heated to 80 ° C., and while stirring, 1.5 g of powdered activated carbon (average mesh 300) as an adsorbent and 0.5 g of sodium chloride as a gel reinforcing agent were added. After sufficient stirring, the mixture was poured into a molding container on a cup and cooled to room temperature to obtain a gel, but activated carbon precipitated at the bottom.

Comparative Example 2 Powdered activated carbon (average mesh 20) 1.5 as an adsorbent
g, 2.5 g of carrageenan was used as a gelling agent and dispersed using 5.0 g of ethylene glycol. After adding 90 g of water to the dispersion, the mixture is heated to 80 ° C. and stirred.
0.5 g of sodium chloride was added as a gel strengthener. After sufficient stirring, the mixture was poured into a molding container on a cup and cooled to room temperature to obtain a gel, but activated carbon was precipitated at the bottom.

Example 2 In accordance with Production Example 1, the products 1 to 5 of the present invention were prepared according to the compositions shown in Table 1.
Gel deodorizers No. 3 and Comparative products 1 and 2 were prepared.

[0023]

[Table 1]

Test Example 1 Deodorization test: 2 cm of the products 1 to 3 of the present invention, the comparative products 1 to 2 and the commercial product 1 (Sumisui Chemical Industry Co., Ltd. “Smell watch number”) prepared in Example 2 Each cube was cut and used as a sample. One sample was placed in a 3 liter desiccator, and ammonia and hydrogen sulfide were injected as malodorous gases. Concentration immediately after injection of odorous gas (initial concentration (ppm);
A) and the concentration after 30 minutes of air and 1 hour (the concentration over time (pp
m); B) was measured using a detector tube, and the deodorization rate was calculated using the following equation. Table 2 shows the results.

[0025]

[0026]

[Table 2]

As is clear from these results, the gel deodorant of the present invention exhibited a superior deodorizing effect as compared with the conventional gel deodorant using a plant extract.

Example 3 According to the composition shown in Table 3 in accordance with Production Example 1, the products of the present invention 4 to
A gel deodorant of No. 7 was prepared.

[0029]

[Table 3]

Test Example 2 Deodorizing Test: The deodorizing effects of the products 4 to 7 of the present invention prepared in Example 3 were examined in the same manner as in Test Example 1. Table 4 shows the results.

[0031]

[Table 4]

As a result, it was shown that each of the gel deodorants had an excellent deodorizing effect.

[0033]

The gel deodorizer of the present invention exhibits an excellent deodorizing effect on acidic and alkaline malodors, and the effect is stable and persistent throughout. Therefore, it is effective in a small amount as compared with other deodorants, and the end point of the deodorizing effect can be easily determined due to the decrease in the gel, which is convenient in use. that's all

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Naoyuki Nariyuki 1-4-10 Shimochirai, Shinjuku-ku, Tokyo ST Chemical Co., Ltd. F-term (reference) 4C080 AA05 BB02 CC04 CC08 CC13 HH05 HH06 JJ04 KK08 LL06 MM04 MM05 MM06 NN22 NN23 NN28

Claims (6)

[Claims] 1. A gel-like deodorant obtained by dispersing a carbon-based or silica-based adsorbent in a gel. 2. The gel deodorizer according to claim 1, wherein the carbon-based adsorbent is activated carbon, charcoal or bamboo charcoal. 3. The gel-like deodorant according to claim 1, wherein the silica-based adsorbent is silica gel or zeolite. 4. The particle size of the carbon-based or silica-based adsorbent is 1
The gel deodorizer according to any one of claims 1 to 3, wherein the gel deodorant has a size of at least 00 mesh. 5. The method according to claim 1, which is obtained by dispersing a carbon-based or silica-based adsorbent and a gelling agent with a dispersant, and adding water to cause gelation. Gel deodorant. 6. The gelled deodorant according to claim 5, wherein the gelling agent is carrageenan.