JPH11299878A - Deodorant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a property to sustain a removal effect by incorporating a hydrazide compd. and at least one anionic surfactant selected from a sulfate type anionic surfactant and sulfonic acid type anionic surfactant into the deodorant. SOLUTION: The deodorant is prepd. by compounding, for example, the monohydrazide compd. having one hydradize group in the molecule and the anionic surfactant. The anionic surfactant is used by selecting at least one from the group consisting of the sulfate type anionic surfactant and the sulfonic acid type anionic surfactant. For example, sodium polyoxyethylene alkyl ether sulfate is used for the sulfate type anionic surfactant and sodium alkylnaphthalene sulfonate is used for the sulfonic acid type anionic surfactant. The effect of removing aldehyde may be maintained for a long period with the constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a deodorant.
More specifically, the present invention relates to a deodorant having a characteristic of exhibiting an excellent effect of removing various malodorous components and maintaining the effect for a long period of time.

[0002]

It is a well-known fact that formaldehyde contained in tobacco smoke, paints for building materials, adhesives and the like has an adverse effect on the human body.
Particularly in newly-constructed buildings, formaldehyde emitted from paints, adhesives, and the like contained in building materials and the like causes sick house syndrome, which is a major social problem. Furthermore,
It has been confirmed that the emission of formaldehyde does not stop only at the time of new construction, but continues even after several years to ten and several years after construction.

On the other hand, it is also known that a hydrazide compound represented by adipic acid dihydrazide or the like has an effect of removing formaldehyde (Japanese Patent Application Laid-Open No. 8-280781).
And JP-A-10-36681). When processing building materials such as plywood using hydrazide compounds,
A method of dissolving or dispersing the hydrazide compound in water and applying it to building materials is generally employed. However, in such a method, the formaldehyde removal effect decreases with time, and an excellent removal effect cannot be exhibited for a long period of time.

[0004]

Means for Solving the Problems As a result of intensive studies to solve the above-mentioned problems, the present inventor has shown an excellent effect of removing various malodorous components, and the effect lasts for a long time. We have succeeded in developing a new deodorant with such characteristics. The present invention has been completed based on such findings.

That is, the present invention contains (a) a hydrazide compound and (b) at least one anionic surfactant selected from a sulfate ester type anionic surfactant and a sulfonic acid type anionic surfactant. Pertains to deodorants.

According to the present invention, by applying or impregnating the deodorant of the present invention to a building material such as plywood, a remarkable odor component such as formaldehyde which is radiated from the building material for a remarkably long period of time. The removal effect can be exhibited.

Further, according to the deodorant of the present invention, it is possible to uniformly apply or impregnate a deodorant component to a base requiring deodorization. Very little variation in odor performance.

Further, the deodorant of the present invention has an advantage that it has no influence on the performance of the substrate to be coated.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The deodorant of the present invention comprises (a) a hydrazide compound and (b) at least one anion selected from a sulfate ester type anionic surfactant and a sulfonic acid type anionic surfactant. It contains a surfactant.

The hydrazide compound as the component (a) is not particularly limited, and conventionally known compounds can be used. Examples thereof include a monohydrazide compound having one hydrazide group in a molecule and two hydrazide compounds in a molecule. And a polyhydrazide compound having three or more hydrazide groups in the molecule.

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. Examples of the substituent of the aryl group include, for example, a hydroxyl atom, a halogen atom such as fluorine, chlorine, and bromine, 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 group. A linear or branched alkyl group having 1 to 4 carbon atoms such as -butyl group.

As the monohydrazide compound of the above general formula (1), more specifically, lauric hydrazide, salicylic hydrazide, form hydrazide, acetohydrazide, propionic hydrazide, p-hydroxybenzoic hydrazide, naphthoic hydrazide, Examples thereof include 3-hydroxy-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 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 an arylene group, for example,
Phenylene group, biphenylene group, naphthylene group, anthrylene group, phenanthrylene group and the like,
Of these, a phenylene group and a naphthylene group are preferred. Examples of the substituent of the alkylene group and the arylene group include a hydroxyl group.

Specific examples of the dihydrazide compound represented by the general formula (2) include, for example, carbohydrazide, oxalic acid dihydrazide, malonic acid dihydrazide, succinic acid dihydrazide, adipic acid dihydrazide, azelaic acid dihydrazide, sebacic acid dihydrazide, dodecane compound. Dibasic acids such as dihydrazide such as acid dihydrazide, 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; No. 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 compound of the present invention.

Specific examples of the polyhydrazide compound include polyacrylic hydrazide.

Of these, dihydrazide compounds are preferred, and carbohydrazide and dibasic dihydrazide are particularly preferred. In dibasic acid dihydrazide, for example,
Adipic dihydrazide, sebacic hydrazide, dodecane diacid dihydrazide and the like are more preferred.

The above hydrazide compounds can be used alone or in combination of two or more.

The content of the dihydrazide compound in the deodorant of the present invention can be appropriately selected from a wide range depending on the type thereof, the type and content of the surfactant to be used in combination, and the like. It may be about 0.1 to 50% by weight, preferably about 0.5 to 20% by weight.

In the present invention, it is essential that a specific anionic surfactant (component (b)) is blended together with a hydrazide compound which is a specific deodorant component. The (b) component anionic surfactant is a sulfate ester type anionic surfactant and a sulfonic acid type anionic surfactant.
Anionic surfactants other than these, for example, a polyoxyethylene alkyl ether type nonionic surfactant, cannot solve the problem of the present invention (see Comparative Example 1 described later).

As the sulfate ester type anionic surfactant, known ones can be used. For example, a general formula (R ¹ OSO ₃ ) _n M (3) wherein R ¹ is an alkyl having 6 to 30 carbon atoms It represents an alkenyl group having 12 to 18 carbon atoms which may have a hydroxyl group as a group or a substituent. M represents a monovalent or divalent cation. n represents 1 or 2. However, when M represents a monovalent cation, n is 1, and when M represents a divalent cation,
n is 2. A higher alcohol sulfate salt represented by the general formula (R ² R ³ CHOSO ₃ ) _n M (4) wherein M and n are the same as above. R ² and R ³ are the same or different and represent an alkyl group having 1 to 20 carbon atoms. An olefin sulfate represented by the general formula (R ² R ³ CHO (CH ₂ CH ₂ ) _m SO ₃ ) _n M (5) wherein R ² , R ³ , n and M are the same as above. . m is 2-4
Indicates an integer. An alkyl ether sulfate represented by the general formula (R ⁴ O (CH ₂ CH ₂ O) _m SO ₃ ) _n M (6) wherein M, n and m are the same as above. R ⁴ has 6 or more carbon atoms
And a phenyl group which may have an alkyl group of 30 or an alkyl group having 7 to 10 carbon atoms as a substituent. And the like.

In the general formula (3), examples of the alkyl group having 6 to 30 carbon atoms represented by R ¹ include a hexyl group, an octyl group, a dodecyl group, a hexadecyl group, an octadecyl group, and a group —CH ₂ (CH _{2 2) 24} CH _3, group -CH
_A linear alkyl group such as ₂ (CH ₂ ) ₂₈ CH ₃ can be exemplified.
Among them, those having about 12 to 20 carbon atoms are preferable. In addition, carbon atoms having 1 or less carbon atoms which may have a hydroxyl group as a substituent
Examples of the alkenyl group of 2 to 18 include, for example, a group -CH
_{2 (CH 2) 7 CH =} CH (CH 2) 7 CH 3, group -CH ₂ (CH _2)
7 CH = CHCH ₂ CH (OH) (CH ₂ ) ₅ CH ₃ , group —CH _{2
(CH 2) 7 CH = CHCH} 2 CH = CH (CH 2) 4 CH 3, group _{-CH 2 (CH 2) 7 CH} = CHCH 2 CH = CHCH 2 CH
= A linear alkenyl group such as CHCH ₂ CH ₃ can be exemplified. Among these, groups _{-CH 2 (CH 2) 7 CH} = CH (C
H ₂ ) ₇ CH ₃ is preferred.

In the general formulas (4) and (5), examples of the alkyl group having 1 to 20 carbon atoms represented by R ² and R ³ include a methyl group, an ethyl group, an n-propyl group and an iso- propyl group, n- butyl group, iso- butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, group _{-CH 2 CH 2 C (C 2} H 5) H (CH 2) 3 CH 3, nonyl group, Examples thereof include linear or branched alkyl groups such as decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, and heptadecyl. In addition, as R ² and R ³ in the general formula (5), a linear alkyl group having 2 or more carbon atoms is preferable.

In the formula (6), examples of the alkyl group having 6 to 30 carbon atoms represented by R ⁴ include the same alkyl groups having 6 to 30 carbon atoms represented by R ¹ . Examples of the alkyl group having 7 to 10 carbon atoms which is a substituent of the phenyl group represented by R ⁴ include a heptyl group, an octyl group, a nonyl group, and a decyl group, and an alkyl group having 8 or 9 carbon atoms is preferable. .

In the above general formulas (3) to (6), examples of the monovalent cation represented by M include alkali metal ions such as sodium and potassium, and ammonium ions. Among these,
Sodium ions are preferred. Examples of the divalent cation represented by M include ions of alkaline earth metals such as magnesium and calcium, and zinc ions.

Specific examples of the higher alcohol sulfate of the general formula (3) include, for example, lauryl alcohol sulfate (eg, C ₁₂ H ₂₅ OSO ₃ Na) and lauryl alcohol sulfate (C ₁₂ H ₂₅ OSO). ₃ ^- -
NH ₄ ⁺ ), cetyl sulfate (eg, C ₁₆ H ₃₃ OS
O ₃ Na), stearyl sulfate (eg, C ₁₈ H
₃₇ OSO ₃ Na), oleyl sulfate (eg, C
₁₈ H ₃₅ OSO ₃ Na), Ziegler alcohol sulfates (eg C ₁₂ H ₂₅ OSO ₃ Na and C ₁₄ H ₂₉ OSO ₃
Na), oxo alcohol sulfates and the like.

Specific examples of the olefin sulfate of the general formula (4) include, for example, 7-ethyl-2-methyl-undecane-4-sulfate and undecane-6.
-Sulfate, tridecane-7-sulfate,
Pentadecane-8-sulfate, heptadecane-9
-Sulfate, nonadecane-10-sulfate, undecane-2-sulfate, tridecane-2
-Sulfate, pentadecane-2-sulfate, heptadecane-2-sulfate, nonadecane-
Examples thereof include 2-sulfate, pentadecane-2-sulfate, pentadecane-4-sulfate, pentadecane-6-sulfate, and pentadecane-8-sulfate.

Specific examples of the alkyl ether sulfate of the above general formula (5) include, for example, undecane-6
-Trioxyethylene sulfate, undecane-6
-Pentyloxyethylene sulfate, undecane-6-decyloxyethylene sulfate, tridecane-7-trioxyethylene sulfate, tridecane-7-pentyloxyethylene sulfate, tridecane-7-decyloxyethylene sulfate Salt, pentadecane-8-trioxyethylene sulfate,
Pentadecane-8-pentyloxyethylene sulfate, pentadecane-8-decyloxyethylene sulfate, heptadecane-9-trioxyethylene sulfate, heptadecane-9-pentyloxyethylene sulfate, heptadecane-9-decyloxy Examples thereof include ethylene sulfate, nonadecane-10-trioxyethylene sulfate, nonadecane-10-pentyloxyethylene sulfate, and nonadecane-10-decyloxyethylene sulfate.

Specific examples of the alkyl ether sulfate of the above general formula (6) include, for example, lauryl ether sulfate, trioxyethylene octadecyl ether sulfate, pentyloxyethylene octadecyl ether sulfate, decyloxyethylene Examples thereof include octadecyl ether sulfate and polyoxyethylene alkyl ether sulfate.

As the sulfonic acid type anionic surfactant, known ones can be used. For example, a general formula (R ¹ SO ₃ ) _n M (7) wherein R ¹ , M and n are the same as above . An alkyl sulfonate represented by the general formula (R ² R ³ CHSO ₃ ) _n M (8) wherein R ² , R ³ , M and n are the same as above. An alkyl sulfonate represented by the general formula:

[0032]

Embedded image

[Wherein R ¹ , M and n are the same as above. ]
An alkylbenzene sulfonate represented by the general formula

[0034]

Embedded image

[Wherein, M and n are the same as above. R ⁵ represents an alkyl group having 1 to 6 carbon atoms. l represents 1 or 2. An alkylnaphthalene sulfonate represented by the general formula

[0036]

Embedded image

Wherein M and n are the same as above. R ⁶ and R ⁷ are the same or different and represent an alkyl group having 1 to 15 carbon atoms. And the like, and the like.

In the general formulas (7) and (9), an alkyl group having 6 to 30 carbon atoms represented by R ¹ and a carbon atom having 12 to 18 carbon atoms which may have a hydroxyl group as a substituent.
Examples of the alkenyl group include those similar to those in the general formula (3).

In the general formula (8), examples of the alkyl group having 1 to 20 carbon atoms represented by R ² and R ³ are the same as those in the general formula (4).

In the general formula (10), examples of the alkyl group having 1 to 6 carbon atoms represented by R ⁵ include a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, Examples thereof include linear or branched alkyl groups such as an iso-butyl group, a tert-butyl group, an n-pentyl group, and an n-hexyl group. Among them, an alkyl group having 3 to 4 carbon atoms is preferable.

In the above general formula (11), R ⁶ and R ⁷
Examples of the alkyl group having 1 to 15 carbon atoms represented by are a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, an iso-butyl group, and tert.
-Butyl group, n-pentyl group, n-hexyl group, n-
Heptyl group, n-octyl group, n-nonyl group, 2-ethylhexyl group, 1-methyl-4-ethylhexyl group, 1
And straight-chain or branched-chain alkyl groups such as -methyl-4-ethyloctyl group.

In the above general formulas (7) to (11), the monovalent cation represented by M is, for example,
Examples thereof include alkali metal ions such as sodium and potassium, and ammonium ions. Among these, sodium ions are preferred. Examples of the divalent cation represented by M include ions of alkaline earth metals such as magnesium and calcium, and zinc ions.

Specific examples of the alkyl sulfonate represented by the general formula (7) include, for example, decyl sulfonate, dodecyl sulfonate, tetradecyl sulfonate, hexadecyl sulfonate, octadecyl sulfonate and the like. Can be mentioned.

Specific examples of the alkyl sulfonate of the general formula (8) include, for example, undecane-6-sulfonate, tridecane-7-sulfonate, and pentadecane-
8-sulfonate, heptadecane-9-sulfonate,
Nonadecane-10-sulfonate, undecane-2-sulfonate, tridecane-2-sulfonate, pentadecane-2-sulfonate, heptadecane-2-sulfonate, nonadecane-2-sulfonate, pentadecane-
2-sulfonate, pentadecane-4-sulfonate,
Pentadecane-6-sulfonate, pentadecane-8-
Sulfonates and the like can be mentioned.

Specific examples of the alkylbenzene sulfonate represented by the general formula (9) include, for example, dodecylbenzene sulfonate, decylbenzene sulfonate, tetradecylbenzene sulfonate, hexadecylbenzene sulfonate, octadecylbenzene Sulfonates, methylhexadecylbenzenesulfonate, methyltetradecylbenzenesulfonate, methyldodecylbenzenesulfonate, methyldecylbenzenesulfonate and the like can be mentioned.

Specific examples of the alkylnaphthalenesulfonate of the general formula (10) include, for example, 1,4-diisopropylnaphthalenesulfonic acid, 1,4-diisobutylnaphthalenesulfonate, 1,4-n-butylnaphthalene Sulfonate, isopropyl naphthalene sulfonate, di-n-octylnaphthalene sulfonate, di-n
-Dodecylnaphthalene sulfonate and the like.

Specific examples of the sulfosuccinate salt of the above formula (11) include, for example, di-sulfosuccinate.
2-ethylhexyl ester salt, dioctyl sulfosuccinate, di-n-pentyl sulfosuccinate, di-n-hexyl sulfosuccinate,
Di-n-heptyl sulfosuccinate, di-n-octyl sulfosuccinate, di-n-nonyl sulfosuccinate, monoethyl monododecyl sulfosuccinate, monobutyl monododecyl sulfosuccinate, sulfosuccinic acid Mono-2-ethylhexyl-mono-1-methylbenzyl ester salt, mono-2-ethylhexyl sulfosuccinate mono-1-methyl-4-ethylhexyl ester salt, di-1-methylbutyl sulfosuccinate, di-sulfosuccinate
1,3-dimethylbutyl ester salt and the like can be mentioned.

The content of the above-mentioned anionic surfactant in the deodorant of the present invention can be appropriately selected from a wide range according to the type thereof, the type and the content of the hydrazide compound to be used in combination. The total amount may be about 0.001 to 10% by weight, preferably about 0.005 to 1% by weight.

One embodiment of the deodorant of the present invention is the above (a)
The hydrazide compound as the component and the anionic surfactant as the component (b) are dissolved, dispersed, or emulsified in water and / or an organic solvent.

In the present invention, as a medium for dissolving, dispersing or emulsifying the hydrazide compound and the anionic surfactant, water, an organic solvent and a mixed solvent thereof can be used. The organic solvent is not particularly limited, and any known organic solvent can be used as long as it does not adversely affect the active ingredient. For example, a linear or branched aliphatic saturated having about 1 to 8 carbon atoms can be used. Alcohols, cyclopentanol,
Alicyclic alcohols such as cyclohexanol, polyhydric alcohols such as ethylene glycol, linear or branched or cyclic aliphatic hydrocarbons having about 1 to 8 carbon atoms, and aromatics such as benzene, toluene and xylene Hydrocarbons, dialkyl ethers in which the alkyl portion is a linear or branched alkyl having about 1 to 8 carbon atoms, diaryl ethers,
Cyclic ethers such as tetrahydrofuran and dioxane,
Examples thereof include ketones, esters, nitriles such as acetonitrile, polar solvents such as dimethylformamide and dimethylsulfoxide, and phosphate esters.
Among them, linear or branched aliphatic saturated alcohols having 1 to 4 carbon atoms and aromatic hydrocarbons are preferable. One of such organic solvents can be used alone, or 2
More than one species can be used together.

The deodorant of the present invention may optionally contain an antioxidant, an ultraviolet absorber, and the like, as long as the effects are not impaired.
General additives such as an antistatic agent, a flame retardant, a bactericide, a fungicide, an insect repellent, a pigment, a colorant, and a flavor may be blended.

The deodorant of the present invention can be prepared by ordinary mixing means.
It can be produced by mixing predetermined amounts of the components (a) and (b) with water and / or an organic solvent.

In applying the deodorant of the present invention to a substrate, a usual coating or impregnating method can be employed. The base material is composed of one or more of materials such as wood, paper, fiber, metal, ceramics, inorganic fiber, and synthetic resin. Specifically, the veneer board, MDF plywood (medium quality) Fiberboard), decorative board, nonwoven fabric, ceiling material, film, filter, synthetic resin sheet (eg, acrylic resin sheet) and the like.

In applying or impregnating the deodorant of the present invention to a substrate, known methods can be employed, for example, brush coating,
Examples of the method include spray coating and immersion. The amount of application or impregnation of the deodorant of the present invention is not particularly limited, and is wide depending on the type and content of the active components (a) and (b), the use of the substrate to be applied or impregnated, and the like. Although it can be appropriately selected from the range, the deodorant usually has a unit area (1 cm).
² ) per 1 mg to 1 g, preferably 10 mg to 1 g
What is necessary is just to apply or impregnate so that it may become about 00 mg.

After the deodorant of the present invention is applied or impregnated on a substrate, drying is carried out in accordance with a usual method such as air drying, drying using a drier or the like, and drying in a drier such as a thermostat. I just need.

[0056]

The present invention will be specifically described below with reference to examples and comparative examples.

Example 1 A carbohydrazide (a deodorant component) and the following sulfate or sulfonic acid type anionic surfactant were dissolved in water to produce a deodorant of the present invention.

The carbohydrazide concentration was 1% by weight,
The concentration of the sulfate ester type or sulfonic acid type anionic surfactant was 1% by weight.

No. 1: Sodium polyoxyethylene alkyl ether sulfate (sulfate ester type anionic surfactant, trade name; Newcalgen A-28B, manufactured by Takemoto Yushi Co., Ltd.) 2: Sodium alkylnaphthalene sulfonate (sulfonic acid type anionic surfactant, trade name; Newcalgen BX-C, manufactured by Takemoto Yushi Co., Ltd.).

Comparative Example 1 Polyoxyethylene alkyl ether (polyoxyethylene alkyl ether type nonionic surfactant, trade name; Newcalgen D-120) as an anionic surfactant
8, deodorant was produced in the same manner as in Example 1 except that Takemoto Oil & Fat Co., Ltd. was used.

Comparative Example 2 A deodorant was produced in the same manner as in Example 1 except that no anionic surfactant was used.

Test Example 1 Various deodorants obtained in Example 1 and Comparative Examples 1 and 2 were deodorized in accordance with the following method according to the measurement method of "Japanese Agriculture and Forestry Standard / Plywood / Formaldehyde Emission". The odor performance was evaluated.

(1) Preparation of Sample A commercially available plywood (plywood or MDF plywood) was used to prepare a sample
10 mm pieces each of a rectangular shape having a width of 0 mm and a width of 50 mm were cut out, immersed in various deodorants obtained in Example 1 and Comparative Examples 1 to 2 for 15 seconds, taken out, and air-dried overnight, and 10 pieces of samples each. It was created.

As for the veneer plywood, samples which were separately subjected to “spraying treatment” were prepared, and their formaldehyde emission concentrations (mg / liter) were measured. More specifically, a deodorant was spray-coated uniformly on the veneer plywood piece having the above-mentioned predetermined size with a sprayer to obtain a sample piece.

(2) Collection of formaldehyde A crystal dish having a diameter of 120 mm and a height of 60 mm containing 300 ml of distilled water was placed on the bottom of a 240 mm desiccator specified in JSI R 3503, and a support bracket was placed thereon. Each of the 10 test pieces was fixed so as not to come into contact with each other, and then at room temperature (20 to 25 ° C.) for 24 hours.
After leaving it for one month or three months, formaldehyde emitted from the plywood as a test piece was absorbed in distilled water to obtain a sample solution. In Table 1 below, the term “immediately after processing” in the term of the elapsed period means “left for 24 hours”. The same applies to the following tables.

(3) Determination of Formaldehyde Concentration Formaldehyde concentration in sample solution (mg / liter)
Was colorimetrically determined by the acetylacetone method using a spectrophotometer or a photoelectric colorimeter. The colorimetric determination was carried out according to the method described in detail in "Japanese Agricultural Standards, Normal Plywood, Formaldehyde Emission".

The results (formaldehyde concentration (mg / liter) = concentration of formaldehyde released from the plywood of the sample) are shown in Table 1.

The formaldehyde concentration released from the untreated plywood is also described as a blank.

[0069]

[Table 1]

From Table 1, it is apparent that the deodorant of the present invention containing a hydrazide compound and a specific anionic surfactant exhibits an excellent formaldehyde removing effect over a long period of time.

Example 2 A deodorant of the present invention was produced in the same manner as in Example 1 except that adipic dihydrazide was used instead of carbohydrazide as the deodorant component.

Comparative Example 3 Polyoxyethylene alkyl ether (polyoxyethylene alkyl ether type nonionic surfactant, trade name; Newcargen D-1208) was used in place of the sulfate or sulfonic acid type anionic surfactant. Except for the above, a deodorant was produced in the same manner as in Example 2.

Comparative Example 4 A deodorant was produced in the same manner as in Example 2 except that no surfactant was used.

Test Example 2 In the same manner as in Test Example 1, the formaldehyde release concentration (mg
/ Liter), and the deodorizing performance of the various deodorants obtained in Example 2 and Comparative Examples 3 and 4 was evaluated. Table 2 shows the results.

[0075]

[Table 2]

Claims (7)

[Claims] 1. A deodorant containing (a) a hydrazide compound and (b) at least one anionic surfactant selected from a sulfate ester type anionic surfactant and a sulfonic acid type anionic surfactant. 2. A method comprising adding (a) a hydrazide compound and (b) at least one anionic surfactant selected from a sulfate ester type anionic surfactant and a sulfonic acid type anionic surfactant to water and / or organic The deodorant according to claim 1, which is dissolved, dispersed or emulsified in a solvent. 3. The hydrazide compound of the component (a) is represented by the general formula H ₂ NHN—X—NHNH _{2 wherein} X represents a group —CO— or a group —CO—A—CO—. A represents an alkylene group or an arylene group. Or a dihydrazide compound represented by the formula:
The deodorant according to any one of the above. 4. The hydrazide compound of component (a) is at least one selected from the group consisting of adipic dihydrazide, sebacic hydrazide and dodecane diacid dihydrazide.
The deodorant according to claim 1 or 2, which is a seed. 5. The sulfate ester type anionic surfactant of the component (b) is represented by the general formula (R ⁴ O (CH ₂ CH ₂ O) _m SO ₃ ) _n M wherein R ⁴ has 6 to 30 carbon atoms. Or a phenyl group which may have an alkyl group having 7 to 10 carbon atoms as a substituent. m shows the integer of 2-4. M represents a monovalent or divalent cation. n represents 1 or 2. However, when M represents a monovalent cation, n is 1. When M represents a divalent cation, n is 2. The deodorant according to any one of claims 1 to 4, which is an alkyl ether sulfate represented by the formula: 6. The sulfonic acid type anionic surfactant of the component (b) has a general formula: [Wherein, M and n are the same as above. R ⁵ represents an alkyl group having 1 to 6 carbon atoms. l represents 1 or 2. The deodorant according to any one of claims 1 to 4, which is an alkyl naphthalene sulfonate represented by the following formula: 7. Component (a) is added in an amount of 0.1 to 5 in the total amount of the deodorant.
The deodorant according to any one of claims 1 to 6, comprising 0% by weight and 0.001 to 10% by weight of the component (b).