JP2003245332A - Deodorant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a deodorant which can deodorize both of acid malodorous substances and basic malodorous substances while making the deodorizing effects visually recognizable. <P>SOLUTION: A deodorant composition with pH 3 to 10 and containing a plant extract, a pH indicator and a humectant is carried by a porous substance. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a deodorant,
Specifically, it relates to a deodorant having a deodorant effect that can be visually observed.

[0002]

2. Description of the Related Art Conventionally, as a deodorant for deodorizing a bad odor generated at home such as a refrigerator, a room, a toilet, a shoe box, etc., and making it possible to visually check the deodorizing condition, Japanese Patent Application Laid-Open No. 61-26 has been disclosed.
There is known one using an acidic or basic substance and a pH indicator as described in JP-A No. 4258, JP-A No. 63-166433 and the like. Ammonia odor is generated in the above toilet, and acetic acid and isovaleric acid are generated in the shoe box. To deodorize these bad odors, it is sufficient to use only the above acidic substance or basic substance. It was

[0003]

However, for example, in a refrigerator, various odors are mixed, and in addition to the odor of the food itself, the odor caused by the spoilage of the food becomes a problem. In the case of spoilage of fish and meat, an amine odor such as ammonia and trimethylamine is produced, in the case of spoilage of eggs and milk, hydrogen sulfide is produced, and in the case of spoilage of vegetables, a mercaptan odor such as methyl mercaptan is produced. In addition, indoor smoke produces amine odors such as ammonia and pyridine from cigarette smoke, and organic acid odors such as butyric acid from sweat and body odor. Therefore, when both an acidic malodorous substance and a basic malodorous substance can be generated in the same space, a sufficient deodorizing effect cannot be obtained with only one of the acidic substance and the basic substance.

Therefore, an object of the present invention is to provide a deodorant capable of deodorizing both an acidic malodorous substance and a basic malodorous substance and making the deodorizing effect visible.

[0005]

The present invention has solved the above problems by supporting a deodorant composition having a pH of 3 to 10 containing a plant extract, a pH indicator and a humectant on a porous substance. .

Since a plant extract is used, various functional groups such as phenolic hydroxyl group, aldehyde group and carboxyl group contained in the plant extract cause a wide range of malodorous substances caused by organic acids, mercaptans, amines and the like. Deodorization becomes possible. Further, since the pH of the deodorant composition changes depending on the adsorbed malodorous substance, the deodorizing state can be visually recognized by the color tone change due to the pH indicator.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. The deodorant according to the present invention is a deodorant composition having a pH of 3 to 10 containing a plant extract, a pH indicator and a humectant, which is carried on a porous substance.

The above plant extract refers to an extract extracted from a plant, and an extract containing a component having a phenolic hydroxyl group, an aldehyde group and a carboxyl group is particularly preferable. When the above extract is used, deodorization becomes possible by inclusion of a phenolic hydroxyl group and an organic acid, addition reaction of an aldehyde group and a mercaptan odor, neutralization reaction of a carboxyl group and an amine odor, and the like. Even if these functional groups coexist, they hardly inhibit the respective reactions.

Examples of such plant extracts include extracts from conifers such as Pinaceae, Cryptomaceae, Taxus, and Oxaceae, angiosperms such as camellia and camphor trees, and monocotyledons such as lilies and hemp trees. And extracts from tea such as green tea and oolong tea. In addition, since the plant extract is a natural raw material, it is characterized by high safety.

The pH indicator clearly indicates a change in pH due to the plant extract adsorbing a malodorous substance, and may be any one whose color tone changes due to the change in pH. In particular, when the malodorous substance can generate both acidity and basicity, p that is discolored by acidity can be dealt with even when the pH is changed to either acidity or basicity.
It is preferable to use an H indicator in combination with a pH indicator that changes color due to basicity. At this time, as the pH indicator, it is possible to distinguish which malodor has been eliminated by selecting a color that changes color due to acidity and a color that changes color due to basicity.
Further, by combining two or more kinds of pH indicators, the color tone can be gradually changed with the deodorization, and the deodorization situation may be visually recognized in some cases. When the existing malodorous substance is clearly acidic or basic, a pH indicator that discolors only one of them may be used.

Specific examples of the pH indicator include bromophenol blue, bromocresol green, methyl red, bromocresol purple, m-cresol purple, bromothymol blue, phenol red, o-cresol red, neutral red, chlorophenol red, Examples include Congo Red, Nitrazine Yellow, Eriochrome Black T, and Xylenol Orange.

The moisturizer refers to a substance for retaining water in the deodorant. This water has the effect of helping the adsorption of malodorous substances and making the color tone change of the pH indicator clear. Examples of the moisturizer include ethylene glycol, propylene glycol, glycerin, polyhydric alcohols such as polyoxyalkylene glycol, hexaglycerin monostearate, glycerin ester such as hexaglycerin tristearate, dimethyl sulfoxide,
Polar solvents such as dimethylacetamide, gel-like substances such as agar, carrageenan, curdlan, inorganic salts such as calcium chloride and magnesium sulfate, organic acid salts such as sodium chondroitin sulfate and sodium lactate, amino acids such as serine and proline, urea, etc. And amines such as triethanolamine.

Stabilizers can be added to the deodorant according to the present invention as long as it does not affect discoloration. This stabilizer is for preventing the above pH indicator from being decomposed / denatured by light such as ultraviolet rays or infrared rays, oxygen gas, oxidizing gas, etc., and is a UV absorber, an antioxidant, a light stabilizer. Agents, infrared ray blocking agents and the like can be used. These stabilizers may be used alone or in combination of two or more.

Specific examples of the ultraviolet absorber include salicylic acid type ultraviolet absorbers such as phenyl salicylate, p-tert-butylphenyl salicylate and p-octylphenyl salicylate, 2,4-dihydroxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2
-Hydroxy-4-methoxybenzophenone-5-sulfonic acid, benzophenone-based UV absorbers such as 2,2'-dihydroxy-4-methoxybenzophenone, 2-
(2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-tert)
-Butylphenyl) benzotriazole, 2- (2'-
Hydroxy-3 ', 5'-di-tert-butylphenyl) benzotriazole, 2- (2'-hydroxy-
3'-tert-butyl-5'-methylphenyl) -5
-Benzotriazole-based UV absorbers such as chlorobenzotriazole, 2-ethylhexyl 2-cyano-3,
3'-diphenyl acrylate, ethyl 2-cyano-
Examples include cyanoacrylate-based ultraviolet absorbers such as 3,3′-diphenylacrylate.

Specific examples of the above antioxidant include 2,6
-Di-tert-butyl-p-cresol (BHT),
Butylated hydroxyanisole (BHA), 2,2'-
Methylenebis (4-methyl-6-tert-butylphenol), 4,4'-thiobis (3-methyl6-ter)
t-butylphenol) and other phenolic antioxidants,
2,2'-methylenebis (4-methyl-6-tert-
Butylphenol), 4,4′-thiobis (3-methyl-6-tert-butylphenol) and other bisphenol-based antioxidants, 1,1,3-tris (2-methyl-4)
Polymeric phenolic antioxidants such as -hydroxy-5-tert-butylphenyl) butane and α-tocopherol, sulfur such as dilauryl 3,3'-thiodipropionate and dimyristyl 3,3'-thiodipropionate Phosphorus-based antioxidants, such as antioxidants, triphenyl phosphate, diphenyl isodecyl phosphate,
Examples thereof include erythorbic acid, propyl gallate, nordihydroguaiaretic acid, isopropyl citrate and the like.

Specific examples of the light stabilizer include inorganic light stabilizers such as titanium oxide, zinc oxide, iron oxide and cerium oxide, and bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate. , 4-benzoyloxy-2,2
Examples thereof include hindered amine light stabilizers such as 6,6-tetramethylpiperidine and nickel compound light stabilizers such as nickel dibutyldithiocarbamate and nickel bis (octylphenyl) sulfide.

Specific examples of the infrared blocking agent include inorganic infrared blocking agents such as antimony-doped tin oxide and tin-doped indium oxide, and organic infrared blocking agents such as anthraquinone, cyanine and polymethine.

The deodorant composition preferably has a pH of 3 to 10,
4-9 are preferable. When the pH is out of this range, only the deodorizing ability of one of the acidic malodorous substance and the basic malodorous substance can be exerted.

In order to clarify the change in pH, p
An H regulator may be added. Specific examples of the pH adjuster include inorganic acids such as phosphoric acid, carbonic acid and boric acid, and salts thereof,
Aliphatic organic acids such as tartaric acid and citric acid and salts thereof, aromatic organic acids such as phthalic acid and phenylacetic acid and salts thereof, amino acids such as glycine and alanine, amines such as triethanolamine, bases such as sodium hydroxide And the like.

The above deodorant composition is used by supporting it on the above porous substance. The porous substance may be any substance as long as it can carry the deodorant composition and does not react with each component of the deodorant composition. In particular, it is preferably hydrophilic in order to increase the amount of the deodorant composition carried and to make the color development of the pH indicator clear.

Examples of the hydrophilic porous substance include cellulose, cellulose acetate, nitrocellulose, ethyl cellulose, carboxymethyl cellulose and like derivatives or derivatives thereof, starch, alginic acid, casein, collagen, polyvinyl alcohol, polyamide, polyacrylic acid and other hydrophilic substances. Inorganic substances such as organic polymers, silica gel, and zeolite are listed. The form of the hydrophilic porous material is not particularly limited, and any form can be selected. Examples thereof include porous particles having a spherical shape, a square shape, and a flat shape, a woven cloth, a non-woven cloth, a sheet, a mat, and the like.

The method of supporting the deodorant composition on the hydrophilic porous material is not particularly limited, and a method of immersing the hydrophilic porous material in a solution of the deodorant composition, a hydrophilic porous material Examples of the method include applying a solution of the deodorant composition to.

Further, the deodorant composition can be mixed with an embedding material and carried on the porous substance for use. The term "embedding material" as used herein refers to a substance that is solid at room temperature and that is used to shape the deodorant composition and that melts when heated. By mixing the embedding material, it is possible to suppress the escape of the deodorant composition. In addition, the above-mentioned stabilizer is made to function efficiently, that is, the ability to prevent the above pH indicator from being decomposed and denatured by light such as ultraviolet rays and infrared rays and oxygen gas and oxidizing gas in the atmosphere is improved. Can be made. Furthermore, it also contributes to prevention of fading.

Examples of the embedding material include gel-like substances such as agar, carrageenan, curdlan and alginate, petroleum waxes such as mineral wax, paraffin wax and microcrystalline wax, natural waxes such as carnauba wax and rice wax, Aliphatic alcohols such as stearyl alcohol, behenyl alcohol, tetradecanediol and hexadecanediol, fatty acids such as palmitic acid and stearic acid, fatty acid amides such as stearic acid amide, sucrose stearate ester, sucrose palmitate ester, stearic acid glyceride, behenin Fatty acid esters such as acid glyceride, polyethylene glycol,
An embedding material that is solid at room temperature such as high molecular weight polyoxyalkylene glycols such as polypropylene glycol can be used. These embedding materials may be used alone or in combination of two or more.

[0025]

EXAMPLES The present invention will be described more specifically with reference to Examples and Comparative Examples below. First, the chemicals used in Examples and Comparative Examples and the test method are described below. <Chemicals> (1) Plant extract / coniferous tree extract: manufactured by Matsushita Electric Industrial Co., Ltd .; Super Puriel A-10 • Tea extract: manufactured by Shiraimatsu Shinyaku Co., Ltd .; Fresh Shiraimatsu

(2) Cotton non-woven fabric Nisshinbo Co., Ltd .; Oikos PL2200

<Evaluation Test> 1 ml of the deodorant obtained in each of the Examples and Comparative Examples was filled in a heat-sealing non-woven fabric package and put in a 5 liter Tedlar bag. A malodorous substance was added into the Tedlar bag, and the residual gas concentration after 24 hours was measured with a detector tube. If the residual gas concentration was below the detection limit, a malodorous substance was further added. By repeating this operation, the amount of the malodorous substance deodorized per 1 liter of the sample at the time when the deodorization could not be performed
It is shown in Table 1 as l). The change in color was also visually observed. The results are shown in Table 1. In addition, as a malodorous substance,
80 ppm hydrogen sulfide gas or 400 ppm ammonia gas was used.

(Examples 1 to 7 and Comparative Examples 1 to 3) 20 g of the deodorant component shown in Table 1 and 6 m of the pH indicator shown in Table 1 were used.
10 g of the porous material shown in Table 1 was impregnated with a liquid prepared by kneading 2 g of the moisturizing agent and 2 g of the moisturizing agent and sufficiently dried in a dryer at 60 ° C. to prepare a deodorant, and the above test was conducted. . The results are shown in Table 1.

(Example 8) A liquid prepared by kneading 20 g of the embedding material shown in Table 1 which was heat-melted with 20 g of the deodorant component shown in Table 1, 6 mg of a pH indicator, and 2 g of a moisturizing agent is shown in Table 1. Immersion in 10 g of the described porous material and cooling to room temperature,
A deodorant was prepared and the above test was conducted. The results are shown in Table 1.
Shown in.

[0030]

[Table 1]

[0031]

Industrial Applicability According to the present invention, since a plant extract is used, organic acids, mercaptans, amines, etc. can be produced by the various functional groups such as phenolic hydroxyl group, aldehyde group and carboxyl group contained in the plant extract. It is possible to deodorize a wide range of malodorous substances caused by.

Further, since the pH of the deodorant composition changes depending on the adsorbed malodorous substance, the deodorizing condition can be visually recognized by the color tone change by the pH indicator.

Further, since the moisturizing agent is used, the change in color tone of the pH indicator can be made more clear.

Furthermore, the pH of the deodorant composition is 3-10.
Since the range is set to, it is possible to simultaneously adsorb both the acidic malodorous substance and the basic malodorous substance.

Further, since the porous substance is used as the carrier, the amount of the deodorant composition carried can be increased. Further, it is preferably hydrophilic in terms of affinity with a malodorous substance and making the color of the pH indicator clear.

Furthermore, the use of an embedding material can improve the ability to prevent the pH indicator from being decomposed and denatured.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hidenao Saito             1-8-10 Jiyugaoka, Kanazu-cho, Sakai-gun, Fukui Prefecture             No. Rengo Co., Ltd. Fukui Research Center F-term (reference) 4C080 AA06 BB02 CC01 CC04 CC08                       HH09 JJ05 KK08 LL08 LL10                       LL20 MM31 NN24

Claims (4)

[Claims] 1. A deodorant comprising a porous substance carrying a deodorant composition having a pH of 3 to 10 containing a plant extract, a pH indicator and a humectant. 2. The deodorant according to claim 1, wherein an embedding material is mixed with the deodorant composition, and the mixture is supported on a porous material. 3. The deodorant according to claim 1, wherein the porous substance is a hydrophilic porous substance. 4. The deodorant according to claim 1, wherein the hydrophilic porous substance is a substance made of cellulose or a derivative thereof.