JP3029825B1 - Deodorant composition - Google Patents

Abstract

An object of the present invention is to provide a deodorant composition capable of efficiently removing aldehydes such as acetaldehyde and formaldehyde, which are malodorous components. SOLUTION: The deodorant composition of the present invention comprises at least one selected from hydrazides, azoles and azines.
And at least one selected from the group consisting of a seed and a weak acid metal salt as an active ingredient.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a deodorant composition. More specifically, the present invention relates to a deodorant composition capable of efficiently removing aldehydes such as acetaldehyde and formaldehyde, which are malodorous components.

[0002]

2. Description of the Related Art In recent years, with the remarkable improvement in living standards, more comfortable living environments and working environments have been demanded, and various problems have been raised. For example, one of the causes of the increasing anti-smoke movement is that a large number of odor components such as acetaldehyde, ammonia, trimethylamine, mercaptan, and hydrogen sulfide contained in cigarette smoke can cause hair, clothing, indoor walls, furniture, It adheres to the interior of vehicles such as carpets, automobiles, and trains, and remains as an odor. Also, in recent newly built houses, new building materials impregnated or coated with chemical substances such as formaldehyde are often used,
It is a serious problem that the chemical substance is vaporized and dispersed in a large amount to give a bad smell, deteriorating the living environment and further impairing the health of residents.

As a means for solving the above-mentioned problem, the present inventors have proposed a method of removing acetaldehyde, which accounts for a large proportion of the malodorous components of tobacco, and aldehydes such as formaldehyde, which are dispersed and vaporized from new building materials. Hydrazides, azoles and azines have been proposed as odorants (Japanese Patent Application Laid-Open No. 10-36681, Japanese Patent Application No. 10-1).
No. 11745).

[0004]

The hydrazides, azoles and azines themselves have excellent deodorizing performance, but the present inventors have found that these compounds can further improve the deodorizing efficiency. The use of various auxiliaries was examined for improvement, reduction of the addition amount, and rapid manifestation of the effect. as a result,
It has been found that the deodorizing efficiency can be remarkably improved by using a certain kind of auxiliary agent in combination, and it has been found that the addition amount is reduced and the effect is promptly exhibited, thereby completing the present invention.

[0005]

That is, the present invention provides (A)
The present invention relates to a deodorant composition comprising as active ingredients at least one selected from hydrazides, azoles and pyridazines and (B) at least one selected from weak acid metal salts.
The weak acid metal salt is a metal salt of an acid having an ionization constant of less than 0.01, for example, carboxylic acid, boric acid, phosphoric acid,
Metal salts such as carbonic acid are applicable.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION In the deodorant composition of the present invention, (A) at least one selected from hydrazides, azoles and azines (hereinafter sometimes simply referred to as component (A)) is effective. Used as an ingredient. Examples of the hydrazides include a monohydrazide compound having one hydrazide group in a molecule, a dihydrazide compound having two hydrazide groups in a molecule, and a polyhydrazide compound having three or more hydrazide groups in a molecule. Can be.

Specific examples of the monohydrazide compound include:
For example, in the general formula _{R-CO-NHNH 2 (1} ) [wherein, R represents an aryl group which may have a hydrogen atom, an alkyl group or a substituent. A monohydrazide compound represented by the formula:

In the general formula (1), examples of the alkyl group represented by R include a methyl group, an ethyl group, and an n group.
-A carbon number of 1 to 1 such as -propyl group, n-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group and n-undecyl group.
Twelve linear alkyl groups can be mentioned. Examples of the aryl group include a phenyl group, a biphenyl group, a naphthyl group and the like, and among these, a phenyl group is preferable. Further, as a substituent of the aryl group, for example, a hydroxyl group, fluorine, chlorine, a halogen atom such as bromine,
Examples thereof include a linear or branched alkyl group having 1 to 4 carbon atoms such as a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, a tert-butyl group, and an iso-butyl group. be able to.

More specifically, the hydrazide compound of the general formula (1) includes lauric hydrazide, salicylic hydrazide, form hydrazide, acetohydrazide, propionic hydrazide, p-hydroxybenzoic hydrazide, naphthoic hydrazide, 3 -Hydroxy-
Examples thereof include 2-naphthoic acid hydrazide.

Specific examples of the dihydrazide compound include, for example, a general formula H ₂ NHN—X—NHNH ₂ (2) wherein X represents a group —CO— or a group —CO—A—CO—. A represents an alkylene group or an arylene group. And a dihydrazide compound represented by the following formula:

In the above general formula (2), examples of the alkylene group represented by A include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, a heptamethylene group, and an octamethylene group. And a straight-chain alkylene group having 1 to 12 carbon atoms such as a nonamethylene group, a decamethylene group and an undecamethylene group. As the substituent of the alkylene group,
For example, a hydroxyl group etc. can be mentioned. Examples of the arylene group include a phenylene group, a biphenylene group, a naphthylene group, an anthrylene group, and a phenanthrylene group. Of these, a phenylene group, a naphthylene group, and the like are preferable. As the substituent of the arylene group,
The same substituents as those described above for the aryl group can be used.

The dihydrazide compound of the general formula (2) is specifically exemplified by, for example, oxalic acid dihydrazide, malonic acid dihydrazide, succinic acid dihydrazide, adipic acid dihydrazide, azelaic acid dihydrazide, sebacic acid dihydrazide, dodecane diacid dihydrazide. And dibasic acid dihydrazides such as maleic acid dihydrazide, fumaric acid dihydrazide, diglycolic acid dihydrazide, tartaric acid dihydrazide, malic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, dimer acid dihydrazide, and 2,6-naphthoic acid dihydrazide. . Further, various dibasic acid dihydrazide compounds described in JP-B-2-4607, 2,4-dihydrazino-6-
Methylamino-sym-triazine and the like can also be used as the dihydrazide of the present invention.

Specific examples of the polyhydrazide compound include polyacrylic hydrazide. Among these, dihydrazide compounds are preferred, dibasic dihydrazide is particularly preferred, and adipic dihydrazide is even more preferred. The above hydrazide compounds can be used alone or in combination of two or more.

As the azoles and azines, known 5- or 6-membered heterocyclic compounds having two or three nitrogen atoms as hetero atoms can be widely used.
These heterocyclic compounds include a linear or branched alkyl group having about 1 to 4 carbon atoms, an aryl group which may have one or more substituents, a hydroxyl group, an amino group, and an alkylamino group. And one or more substituents such as dialkylamino, arylamino, diarylamino, mercapto, ester, carboxyl, benzotriazolyl, 1-hydroxybenzotriazolyl, etc. You may. Here, as a linear or branched alkyl group having about 1 to 4 carbon atoms, for example, methyl, ethyl,
n-propyl, iso-propyl, n-butyl, iso
-Butyl, tert-butyl and the like. As the aryl group, for example, a phenyl group, a biphenyl group,
A naphthyl group, and these groups may be substituted with one or more substituents such as a hydroxyl group, a halogen atom, a sulfonic acid group, and a linear or branched alkyl group having 1 to 4 carbon atoms. Good. When the compound has a carboxyl group as a substituent, its ester is also included in the active ingredient of the present invention.

The azoles include, for example, diazoles, triazoles, thiadiazoles and the like, and diazoles and triazoles are preferably used.

Specific examples of diazoles include, for example, 3
-Methyl-5-pyrazolone, 1,3-dimethyl-5-pyrazolone, 3-methyl-1-phenyl-5-pyrazolone, 3-phenyl-6-pyrazolone, 3-methyl-1-
Pyrazolones such as (3-sulfophenyl) -5-pyrazolone, pyrazole, 3-methylpyrazole, 1,4-dimethylpyrazole, 3,5-dimethylpyrazole, 3,
5-dimethyl-1-phenylpyrazole, 3-aminopyrazole, 5-amino-3-methylpyrazole, 3-methylpyrazole-5-carboxylic acid, 3-methylpyrazole-5-carboxylic acid methyl ester, 3-methylpyrazole- Examples thereof include pyrazoles such as 5-carboxylic acid ethyl ester and 3,5-methylpyrazole dicarboxylic acid.

Specific examples of triazoles include, for example, 1,2,3-triazole, 1,2,4-triazole, 3-n-butyl-1,2,4-triazole,
5-dimethyl-1,2,4-triazole, 3,5-di-n-butyl-1,2,4-triazole, 3-mercapto-1,2,4-triazole, 3-amino-1,
2,4-triazole, 4-amino-1,2,4-triazole, 3,5-diamino-1,2,4-triazole, 5-amino-3-mercapto-1,2,4-triazole, 3- Amino-5-phenyl-1,2,4-triazole, 3,5-diphenyl-1,2,4-triazole, 1,2,4-triazol-3-one, urazole (3,5-dioxy-1, 2,4-triazole),
1,2,4-triazole-3-carboxylic acid, 1-hydroxybenzotriazole, 5-hydroxy-7-methyl-1,3,8-triazaindolizine, 1H-benzotriazole, 4-methyl-1H-benzo Examples thereof include triazole and 5-methyl-1H-benzotriazole.

Examples of the azines include diazines, triazines, pyridazines and the like. Of these, pyridazines are preferably used. Specific examples of pyridazines include, for example, 6-methyl-8-hydroxytriazolopyridazine, 4,5-dichloro-3
-Pyridazine, maleic hydrazide, 6-methyl-3
-Pyridazone and the like. Among these, azoles are preferable, and triazoles such as 1,2,4-triazole and 1,2,3-triazole,
Pyrazoles such as 3,5-dimethylpyrazole, and 3-
Pyrazolones such as methyl-5-pyrazolone are particularly preferred.

In the present invention, one of the above-mentioned azoles and azines can be used alone, or two or more can be used in combination.

(B) At least one kind (hereinafter sometimes referred to as component (B)) selected from weak acid metal salts includes:
For example, at least one selected from metal carboxylate, metal borate, metal hydrogen carboxylate, metal phosphate, metal carbonate and the like can be mentioned. Examples of the metal carboxylate include formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, decanoic acid, lauric acid, and stearic acid. Carboxylic acids, acrylic acid, methacrylic acid, propiolic acid, crotonic acid, isocrotonic acid, oleic acid, maleic acid, unsaturated fatty acids such as fumaric acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, suberic acid , Saturated dicarboxylic acids such as sebacic acid,
Benzoic acid, phthalic acid, isophthalic acid, terephthalic acid, 1
Sodium salts, potassium salts, lithium salts of carboxylic acids such as aromatic carboxylic acids such as naphthoic acid, toluic acid, atropic acid, and cinnamic acid, and heterocyclic carboxylic acids such as nicotinic acid, isonicotinic acid, furoic acid, and tenoic acid; Alkaline metal salts such as salts, barium salts, strontium salts, calcium salts, alkaline earth metal salts such as magnesium salts and chromium salts, manganese salts, aluminum salts, tin salts, zinc salts, copper salts, iron salts, cobalt salts, Nickel salts can be exemplified, and among them, alkali metal salts and alkaline earth metal salts are preferable. Examples of the metal borate include alkali metal borate and alkali metal tetraborate. These metal carboxylate and metal borate can be used alone or in combination of two or more.

Preferred specific examples of the compound which can be used as the component (B) include sodium acetate, sodium propionate, sodium benzoate, potassium hydrogen phthalate, sodium tetraborate, potassium dihydrogen phosphate and the like. .

The proportion of the component (B) to the component (A) of the present invention is as follows: component (A): component (B) = 1: 5
A range of 100: 1 (weight ratio) can be exemplified.

The deodorant composition of the present invention may contain other known deodorants (for example, perlite, zeolite, silica gel, activated carbon, urea, ferrous sulfate and L-ascorbin) as long as their effects are not impaired. Conjugate with an acid, etc.).

The deodorant composition of the present invention is usually used in the form of a powder, a solution or an emulsion. The powder of the composition of the present invention can be used in the same manner as a general powder.

After the powder of the composition of the present invention is dissolved in a suitable solvent such as an organic solvent or water, it is applied to, impregnated with, or mixed with the material to be treated. Here, known organic solvents can be used. For example, linear or branched aliphatic saturated alcohols having about 1 to 8 carbon atoms, cycloaliphatic alcohols such as cyclopentanol and cyclohexanol, Polyhydric alcohols such as ethylene glycol, linear or branched or cyclic aliphatic hydrocarbons having about 1 to 8 carbon atoms, and linear or branched alkyl having an alkyl moiety having about 1 to 8 carbon atoms. Cyclic ethers such as dialkyl ethers, diaryl ethers, tetrahydrofuran and dioxane, ketones, esters, nitriles such as acetonitrile, polar solvents such as dimethylformamide and dimethyl sulfoxide, phosphate esters, and two or more of these A mixed solvent and the like can be mentioned. Further, an appropriate amount of water can be contained in such an organic solvent. The concentration of the active ingredient at the time of preparation in the form of an organic solvent solution is not particularly limited and can be appropriately selected from a wide range depending on the use of the obtained solution and the like, but the total amount of both components (A) and (B) is Usually, it may be about 0.1 to 80% by weight, preferably about 0.5 to 60% by weight of the total amount of the solution.

An emulsion of the deodorant composition of the present invention can also be produced according to a known method, for example, by mixing appropriate amounts of the powder of the present composition, water and a surfactant. Furthermore, by mixing this emulsion and a synthetic resin emulsion, it can be used in the form of an emulsion. Here, as the synthetic resin emulsion, for example, vinyl acetate polymer emulsion, ethylene-vinyl acetate polymer emulsion, vinyl acetate-versatate copolymer emulsion, ethylene-vinyl acetate-vinyl chloride copolymer emulsion, ethylene-vinyl acetate-acrylic Emulsion polymerization and solution of acid ester copolymer emulsion, acrylic ester polymer emulsion, acrylate-styrene copolymer emulsion, vinyl chloride polymer emulsion, urethane polymer emulsion, silicone polymer emulsion, epoxy polymer emulsion, etc. Examples thereof include a synthetic resin emulsion produced by polymerization or an aqueous starch solution. The amount of the active ingredient used in producing the emulsion is not particularly limited and can be appropriately selected from a wide range.
The total amount of both components (A) and (B) is about 0.1 to 30 parts by weight, preferably 0.5 to 20 parts by weight, per 100 parts by weight.
What is necessary is just to adjust suitably so that it may become about a weight part.

Further, the composition of the present invention prepared in the form of a powder of the composition of the present invention or a solution or dispersion of the powder,
The deodorant resin composition can be prepared by mixing with an appropriate synthetic resin. The synthetic resin is not particularly limited and may be a known resin. Examples thereof include polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetoacetylated polyvinyl alcohol, ABS resin, vinylidene chloride resin, and acetic acid. Thermoplastic resin such as vinyl resin, polyamide, polyacetal, polycarbonate, modified polyphenylene ether polysulfone, polyphenylene sulfide, epoxy resin, xylene resin, guanamine resin, diallyl phthalate resin, vinyl ester resin, phenol resin, unsaturated polyester, furan resin, polyimide And thermosetting resins such as polyurethane, maleic acid resin, melamine resin, urea resin and urea resin. Among them, as the thermoplastic resin, polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetoacetylated polyvinyl alcohol, ABS resin and the like are preferable,
Polyvinyl chloride, polyolefin and the like are particularly preferred. Further, as the thermosetting resin, for example, a phenol resin,
Urea resins, urea resins, melamine resins, unsaturated polyesters, epoxy resins, silicon resins, polyurethanes and the like are preferable, and epoxy resins and polyurethanes are particularly preferable. In the deodorant resin composition of the present invention, the amount of the active ingredient is not particularly limited and can be appropriately selected from a wide range. However, (A) and (B) are usually used per 100 parts by weight of the synthetic resin.
The total amount of both components may be appropriately adjusted so as to be about 0.1 to 30 parts by weight, preferably about 0.5 to 20 parts by weight.

Further, a foaming agent may be added to the deodorant resin composition of the present invention. By heating and foaming the obtained composition, fine bubbles are uniformly dispersed in the coating film after foaming, molded articles, etc., the surface area in contact with air is significantly increased, and the deodorizing effect is further enhanced. improves. The foaming agent is not particularly limited, and may be appropriately selected from known organic foaming agents and inorganic foaming agents depending on the type of synthetic resin used, the purpose of use of the obtained deodorant foam, the place of use, and the like. Can be used. Examples of the organic blowing agent include azo compounds such as azodicarbonamide, azobisisobutyronitrile and azohexahydrobenzonitrile, benzenesulfonylhydrazide, p, p'-
Oxybis (benzenesulfonylhydrazide), p-toluenesulfonylhydrazide, diphenylsulfone-
Sulfonyl hydrazide compounds such as 3,3'-disulfonyl hydrazide, diphenyl oxide-4,4'-disulfonyl hydrazide, N, N-dinitrosopentamethylenetetramine, N, N'-dinitroso-N, N'-dimethyl terephthalate Examples include nitroso compounds such as amides, and azide compounds such as terephthalazide and p-tert-butylbenzazide. Among them, azo compounds are preferable, and azodicarbonamide is more preferable.
Examples of the inorganic foaming agent include sodium bicarbonate and ammonium carbonate. Further, gases such as carbon dioxide, freon, methylene dichloride, pentane, and air can also be used. For example, in order to foam polyurethane, when an appropriate amount of water is added to polyurethane, isocyanate, which is a component of polyurethane, and water react to generate carbon dioxide, thereby forming a foam. The amount of the foaming agent is usually 0.1 to 30 parts by weight, preferably 0.5 to 30 parts by weight, per 100 parts by weight of the synthetic resin.
It is preferable to use 20 parts by weight. If the amount is less than 0.1 part by weight, the amount of gas released from the decomposition of the foaming agent is small, or the amount of gaseous substances required for foaming or the amount of gas generated by the reaction is reduced. May not be obtained. On the other hand, when the amount exceeds 30 parts by weight, the amount of gas released from the decomposition of the foaming agent increases, and the gas pressure also increases. Defects such as coarseness, expansion of the resin due to swelling and collapse of air bubbles, and problems of environmental pollution and safety arise.

The expansion ratio of the obtained foam is preferably from 1.2 to 1.2 in consideration of its deodorizing effect and its durability.
It is good to be 60 times, more preferably 1.5 to 50 times.

Further, the deodorant resin composition of the present invention includes, for example, known antioxidants, ultraviolet absorbers, antistatic agents, flame retardants, coloring agents, fungicides, reinforcing materials, fillers and the like. Plastic additives may be added. Here, as the reinforcing material and the filler, for example, known inorganic fillers such as fused silica, crystalline silica, aluminum hydroxide, alumina, white carbon, carbon black, potassium titanate whisker, calcium silicate whisker, aluminum borate whisker And inorganic whiskers such as magnesium borate whiskers and zinc silicate whiskers.

When the composition of the present invention is in the form of a powder, it can be used, for example, as an additive for a synthetic resin to form a molded article of an appropriate shape such as a film or a sheet. Further, the powder of the composition of the present invention can be added to a surface finishing paint such as a building material.

Specific uses of the composition of the present invention used in the form of a solution include, for example, wood (mainly, building materials such as plywood, fiberboard and decorative board), paper, fiber, textiles, resin molding And the like. In order to treat paper, fiber, resin molded product (for example, film or sheet) and the like, a powder solution or dispersion of the composition of the present invention may be applied or impregnated. For example, if a nonwoven fabric is treated, it is useful as an air filter of an air conditioner or an air purifier.

Specific uses of the composition of the present invention used in the form of an emulsion include, for example, adhesives, papers (paper, wallpaper, etc.), fibers, wood (mainly plywood, decorative board and fiberboard). And surface treatment agents for resin molded products (mainly films and sheets), additives to synthetic resins, and the like.
The adhesive is a resin emulsion (particularly preferably a vinyl acetate resin emulsion, an acrylic resin emulsion,
A styrene-butadiene copolymer emulsion) or an aqueous starch solution may be mixed with an emulsion of the composition of the present invention, preferably an emulsion. fiber,
The treatment of paper, wood, resin molded articles and the like is performed by applying or impregnating an emulsion of the composition of the present invention.

More specifically, regarding application to wallpaper,
Taking a synthetic resin sheet (for example, a vinyl chloride resin sheet) and a noncombustible paper as an example, the composition of the present invention may be mixed with synthetic resin to form a sheet, or the surface of the synthetic resin sheet may be used. It can be applied or impregnated or applied to non-combustible paper. Further, the emulsion containing the composition of the present invention can also be used as an adhesive when laminating a vinyl chloride resin sheet and noncombustible paper. Further, if the non-woven fabric is coated or impregnated with the emulsion of the composition of the present invention, it can be used as a filter for an air conditioner or an air purifier.

The composition of the present invention used in the form of a resin composition can be, for example, a molded article having a desired shape. Specific examples of the molded product include, for example, an air filter, a film, and a sheet for an air conditioner or an air purifier. Preferred synthetic resins at this time are, for example, polyolefins such as polypropylene and polyethylene. Further, the composition of the present invention in the form of a resin composition,
It can also be used as an adhesive. Preferred synthetic resins at this time include, for example, thermosetting resins such as urea resins, phenol resins, and furan resins. The deodorant composition of the present invention can further be used as a paint, especially an indoor paint.

[0036]

The present invention will be described in more detail with reference to the following Examples, Comparative Examples and Test Examples.

Formulation Example 1 Adipic acid dihydrazide (ADH) and sodium acetate (AcONa) were dissolved in distilled water to prepare the deodorant of the present invention. The concentrations of adipic dihydrazide and sodium acetate were both 8% by weight.

Formulation Examples 2 to 6 Adipic dihydrazide and sodium acetate were dissolved in distilled water at the ratios shown in Table 1 to prepare the deodorant of the present invention.

Formulation Examples 7 to 11 Adipic dihydrazide and various compounds were dissolved in distilled water at the ratios shown in Table 2 to prepare the deodorant of the present invention.

Comparative Formulation Example 1 Only adipic dihydrazide was dissolved in distilled water to a concentration of 8% by weight to obtain a deodorant composition.

Comparative Preparation Example 2 Only sodium acetate was dissolved in distilled water to a concentration of 8% by weight to prepare a deodorant composition.

Test Examples Each of the deodorants obtained in the Examples and Comparative Examples is described in "JIS
The deodorizing performance was evaluated according to the following method in accordance with the method for measuring "5905 fiberboard formaldehyde emission amount".
As the MDF plywood, five kinds (MDF plywood AE) of different commercial lots were used.

Preparation of test pieces MDF plywood A to E (40 cm × 40 cm × 0.3 c each)
In m), each deodorant obtained in Formulation Example or Comparative Formulation Example was uniformly sprayed at a rate of 38.1 g / m ² using a sprayer. The samples were dried at room temperature, and each sample was placed in a plastic bag and cured for one week. After curing, 1 sample from each sample
A 5 cm × 5 cm × 0.3 cm rectangular test piece was
Cut one by one.

Measurement method Desiccator (size 2 specified in JIS R3503)
A crystal dish (diameter 120 mm, height 60 m) containing 300 ml of distilled water at the bottom of a 40 mm inner volume of about 10 l
m), place a porcelain plate on it, and place a test piece (15
cm × 5cm × 0.3cm) 11 pieces, 20-25
After leaving at 24 ° C. for 24 hours, the released formaldehyde was absorbed in distilled water to obtain a sample solution. The formaldehyde concentration in the sample solution was colorimetrically determined using a photoelectric colorimeter by the acetylacetone method.

The results are shown in Tables 1 and 2. The values in the table indicate the amount of formaldehyde released, and the values in parentheses indicate the percentage reduction in the amount of formaldehyde released from the corresponding untreated MDF plywood.

[0046]

[Table 1]

[0047]

[Table 2]

From the test results of Formulation Examples 1 to 6 and Formulation Comparative Example 1, the deodorant composition of the formulation example using adipic acid dihydrazide and sodium acetate in combination shows that of the comparative formulation example using adipic acid dihydrazide alone. It can be seen that the composition has excellent formaldehyde removing ability as compared with the deodorant composition.

The test results of Comparative Example 2 show that sodium acetate not only has no formaldehyde-removing ability even when used alone, but rather promotes the release of formaldehyde.

From the test results for Formulation Examples 7 to 11,
It can be seen that the deodorant composition of the present invention using various metal carboxylate or borate instead of sodium acetate also has good deodorant performance. Also, the results in Table 2 show that the deodorant composition of the present invention using sodium acetate has particularly good deodorant performance.

[0051]

As described above, the deodorant composition according to the present invention significantly improves the deodorant efficiency. Furthermore, the deodorant composition containing at least one selected from hydrazides and at least one selected from metal carboxylate and metal borate (particularly, sodium acetate) further improves deodorization efficiency.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-152459 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61L 9/00-9/22

Claims (4)

(57) [Claims] 1. A (A) hydrazides, azoles and pin
A deodorant composition comprising as active ingredients at least one selected from lidazines and (B) at least one selected from weak acid metal salts. 2. A deodorant composition comprising (A) at least one selected from hydrazides and (B) at least one selected from weak acid metal salts as active ingredients. 3. The deodorant composition according to claim 1, wherein the component (B) is at least one selected from metal carboxylate and metal borate. 4. The deodorant composition according to claim 1, wherein the component (B) is sodium acetate.