JP2001348313A - Hair cosmetics - Google Patents

Abstract

(57) Abstract: A first acid dissociation index p at 25 ° C.
A hair cosmetic containing an organic dibasic acid and / or a salt thereof, wherein the difference between K ₁ and the second acid dissociation index pK ₂ is 1.7 or more. [Effect] The odor of amines, mercaptans, lower fatty acids and the like can be effectively removed, and it has an excellent deodorizing effect on tobacco odor and cooking odor attached to hair and sweat odor generated on the head.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic composition which is excellent in deodorizing unpleasant odors such as tobacco odor, cooking odor, and sweat odor on the head.

[0002]

2. Description of the Related Art It is important to maintain a beautiful and beautiful hair condition and to give a pleasant scent from the hair after washing the hair, in order to carry out daily life comfortably. Causes that hinder this include cigarette odors and cooking odors emitted into the space. These odors easily adhere to hair, and women with long hair in particular often felt very uncomfortable. In addition, sweat odor generated on the head also causes unpleasant odor. These unpleasant odors are mainly composed of amines such as trimethylamine, mercaptans such as methyl mercaptan, and lower fatty acids such as acetic acid, propionic acid and valeric acid. Conventionally, a method of using a hair colon, a styling agent, or the like to mask such tobacco odor, cooking odor, or sweat odor with a fragrance has been generally used.

[0003]

However, in any case, the hair colon and the styling agent used are mixed with an unpleasant odor, so that an unpleasant odor cannot be sufficiently eliminated or an unpleasant odor is not felt. However, when a hair colon or the like is used, there is a problem that a scent that is unpleasant to others is conversely received. Accordingly, an object of the present invention is to provide a hair cosmetic that effectively eliminates unpleasant odors such as tobacco odor, cooking odor, and sweat odor on the head that adhere to hair.

[0004]

Means for Solving the Problems The present inventors have found that hair cosmetics containing a specific organic acid can deodorize unpleasant odors such as tobacco odor, cooking odor, and sweat odor on the head which adhere to hair. Is superior.

According to the present invention, the difference between the _first acid dissociation index pK ₁ and the second acid dissociation index pK ₂ at 25 ° C. is 1.7.
An object of the present invention is to provide a hair cosmetic containing the above organic dibasic acid and / or a salt thereof.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The pK ₁ and pK ₂ of the organic dibasic acid used in the present invention are values that can be measured by a potentiometric titration method, for example, an automatic potentiometric titrator (AT310J manufactured by Kyoto Electronics Industry Co., Ltd.). Are commercially available and can be measured. Further, pK ₁ and pK ₂ are described in documents listing physical constants relating to various chemical substances (for example, “Chemical Handbook Basic Edition, Second Edition,” edited by The Chemical Society of Japan, published September 20, 1981, 993 Page, Maruzen Co., Ltd.) and open databases (Compudrug pkaBASE, etc.).

The organic dibasic acid used in the present invention, pK ₁ ,
pK ₂ requires that the difference be 1.7 or more. The organic dibasic acid may be contained as a salt, and as a salt such as an alkali metal salt, an alkaline earth metal salt, an ammonium salt, or an alkanolamine salt (preferably, a salt of an alkali metal such as potassium or sodium). Further, the salt may be a mono-, di- or mixed salt.

Tables 1 and 2 show more specific substances of these organic dibasic acids and their pK ₁ and pK ₂ .

[0009]

[Table 1]

[0010]

[Table 2]

The compound having a surfactant activity includes an alkyl or alkenyl succinic acid having 8 to 18 carbon atoms in an alkyl or alkenyl chain. Their pK ₁ is around 4.1 and pK ₂ is around 6.1.

In addition, a Diels-Alder reaction product of a diene compound such as isoprene, cyclopentadiene, and myrcene with a dienophile compound such as maleic acid and citraconic acid, and a hydrogenated product thereof, for example, 5-norbornene-2,3-dicarboxylic acid Can be used. Further, tartaric acid obtained by acetalization or ketalization with aldehyde or ketone can also be used.

Of these, those having a condensed ring structure are particularly preferable. For example, cis-1,2-cyclohexanedicarboxylic acid [HHPA], cis-1,2-cycloheptanedicarboxylic acid, cis-1,2-cyclooctane Dicarboxylic acid, cis-1,2-cyclopentanedicarboxylic acid, cis-1,2-cyclobutanedicarboxylic acid, trans-1,
2-cyclohexanedicarboxylic acid, trans-1,2-
Examples include cycloheptanedicarboxylic acid, trans-1,2-cyclooctanedicarboxylic acid, trans-1,2-cyclopentanedicarboxylic acid, trans-1,2-cyclobutanedicarboxylic acid, and the like.

The content of the organic dibasic acid in the hair cosmetic composition of the present invention is 0.001 to 50% by weight (hereinafter simply referred to as%), preferably 0.001 to 30%, and more preferably 0.01%.
〜１０10%. When it is contained as an organic dibasic acid salt, it is defined by the content in terms of organic dibasic acid.

The hair cosmetic composition of the present invention contains an organic dibasic acid or a salt thereof having a difference of pK ₁ and pK ₂ of 1.7 or more as a deodorant active ingredient, and further contains a fragrance to further deodorize the hair. Is enhanced and preferred. The content of the fragrance in the hair cosmetic is 0.001 to 2%, preferably 0.005 to 1%, particularly preferably 0.01 to 1%.

As the fragrance, a single fragrance may be used, but it is preferable to use a compounded fragrance. Specific flavor components constituting the prepared flavor include α-pinene, β-pinene, methyl anthranilate, isobutylquinoline, eugenol, aldehyde C-10, coumarin, vanillin, tripral, cis-3-hexenol, α-pinene Yonone, β-yonone, γ-yonone, α-isomethylyonone, allylyonone, α-methylyonone, β-methylyonone, γ-methylyonone, α-iron, β-iron, γ-iron, methylyonone-G, sandalmysol core, γ- Undecalactone, α-damascon, β-damascon, γ-damascon, α-dynascon, β-dynascon, lilial, tuberose, calanal, ambroxane, p
-Cresol, maracja, mossins, oribanam resinoid, geranyl nitrile, phenoxyethyl alcohol, florosa, heliotropin, anisyl acetate, anisyl acetone, acetyl eugenol, acetyl isoeugenol, pentalide, and cyclohexyl salicylate, peppermint oil, peppermint oil,
Spearmint oil, lemon oil, orange oil,
Lime oil, grapefruit oil, bergamot oil, lemongrass oil, eucalyptus oil,
Geranium oil, citronella oil, hinoki oil,
Natural essential oils such as cedar oil, pine oil, hiba oil, lavender oil, patchouli oil, l-carvone,
Examples include l-mentone, l-menthol, limonene, citral, dihydrosenol, methyl salicylate, thymol, 1,8-cineole, linalool, citronellol, geraniol, terpineol, camphor and the like.

Particularly, among these fragrances, α-pinene, β
-Pinene, methyl anthranilate, isobutyl quinoline, eugenol, aldehyde C-10, coumarin, vanillin, tripral, cis-3-hexenol, α-
Yonone, β-yonone, γ-yonone, α-isomethylyonone, allylyonone, α-methylyonone, β-methylyonone, γ-methylyonone, α-iron, β-iron, γ-
Iron, methylyonone-G, sandal mysole core,
Aldehyde C-14 peach, α-damascon, β-damascon, γ-damascon, α-dynascon, β-dynascon, lilial, tuberose, kalanal,
Ambroxane, p-cresol, malakja, moss synth, oribanam resinoid, geranyl nitrile, phenoxyethyl alcohol, florosa, heliotropin, anisyl acetate, anisyl acetone, acetyl eugenol, acetyl isoeugenol, pentalide, and cyclohexyl salicylate have a scalp odor. It has an excellent effect on masking, and is preferable in that it can add a function of masking scalp odors other than malodor such as cigarette odor and cooking odor attached to hair and head and sweat odor generated on head. . The compounding ratio is 0.001
It is preferably contained in an amount of 1 to 100%, particularly preferably 1 to 100%.

[0018] Among these fragrances alone, l-carvone, geraniol, citral, thymol, 1,8-cineole, ぺ permint oil, spearmint oil,
Lemongrass and Hiba oil have antibacterial effects,
It is a particularly preferred fragrance because it suppresses the generation of offensive odor due to the propagation of bacteria and the like from sebum and sweat components attached to hair and the like.
In the present invention, these fragrances alone can be blended in the compounded fragrance according to the degree of the effect. As the ratio, the fragrance alone having the antibacterial action is 0.0% of the total fragrance.
Preferably, it accounts for 01-100%, especially 1-100%.

The fragrance component can be used by adding another simple fragrance as needed and further diluting it with a diluent. In that case, the diluent used is 2-methyl-2,4-
Dihydroxybutane, 2-methyl-2,4-dihydroxypentane, 2,4-dihydroxybutane, propylene glycol, dipropylene glycol, tripropylene glycol, ethanol, liquid paraffin, 3-methoxy-3-methylbutanol, diethyl phthalate, IP
One or more compounds selected from solvents are preferred.

Further, the antibacterial agent other than the fragrance alone having an antibacterial effect is not particularly limited. For example, zinc pyrithione (2-pyridinethiol-1-oxide zinc salt), aluminum chloride, zinc oxide, isopropylmethyl Phenol, benzalkonium chloride, triclosan,
0.001 to 50%, preferably 0.01 to 30% of chlorhexidine hydrochloride, halocarban, benzethonium chloride, chlorohydroxyaluminum, allantoincloxyaluminum, zinc p-phenolsulfonate, etc.
It may be contained in the hair cosmetic of the present invention.

The hair cosmetic of the present invention may further contain a surfactant. These surfactants are added for the purpose of improving the hair styling effect of the hair cosmetics, exhibiting a sufficient washing effect, and having the effect of retaining bad odors such as tobacco odor, cooking odor, and sweat odor. Things are preferred. Specific examples of the surfactant include the following. First, as the anionic surfactant, for example, (1) glycolic acid N
-Alkyl (or alkenyl) amide sulfate salts,
(2) alkyl benzene sulfonate, (3) alkyl (or alkenyl) ether sulfate, (4) alkyl (or alkenyl) sulfate, (5) olefin sulfonate, (6) alkane sulfonate, (7) Saturated or unsaturated fatty acid salt, (8) alkyl (or alkenyl) ether carboxylate, (9) α-sulfonate or ester, (10) N-acylamino acid type surfactant, (1
1) Phosphoric acid mono- or diester-type surfactants, (12)
And sulfosuccinates.

Examples of the nonionic surfactant include, for example,
(13) polyoxyethylene alkyl (or alkenyl) ether, (14) polyoxyalkyl phenyl ether, (15) polyoxypropylene alkyl (or alkenyl) ether, (16) polyoxyalkylene alkyl (or alkenyl) ether, (18) ) Higher fatty acid alkanolamides or alkylene oxide adducts thereof, (19) sucrose fatty acid esters, and (20) glycerin fatty acid monoesters. Of these, polyoxyethylene (1 to 30) lauryl ether and glycerin fatty acid monoester are preferred because they do not exhibit a thickening effect.

As the cationic surfactant, a quaternary ammonium salt, particularly a mono- or di-long-chain quaternary ammonium, is preferred. Here, as the mono long chain or di long chain, an alkyl group, an alkenyl group, a hydroxyalkyl group, an alkylcarbonylaminoalkyl group, an alkenylcarbonylaminoalkyl group, an alkylaminocarbonylalkyl group, an alkenylaminocarbonylalkyl group, an alkoxyalkyl group, Examples include an alkenyloxyalkyl group, an aliphatic acyloxyalkyl group, an alkoxycarbonylalkyl group, an alkenyloxycarbonylalkyl group, and the like. Here, the alkyl portion and the alkenyl portion may be linear or branched. More specifically, JP-A Nos. 62-141176, 63-50574, 63-260991, 63-2609992, and 6
3-295765, JP-A-7-90773, 7-90773
No. 309723, No. 7-309724, No. 7-309
And quaternary ammonium salts used in hair cosmetics and softeners described in Japanese Patent No. 724 and the like. Preferred examples include mono-long (straight or branched) alkyl trimethyl ammonium salts, di-long (straight or branched) alkyl dimethyl ammonium salts, and mono-long (straight or branched) alkyl dimethyl benzyl ammonium salts And di-long-chain (linear or branched) alkylmethylbenzylammonium salts, and di-long-chain (linear or branched) alkylmethylhydroxyethylammonium salts.

Further, examples of the amphoteric surfactant include, for example, imidazoline type, amide amino acid salt, carbobetaine type, alkylbetaine type, alkylamidobetaine type, alkylsulfobetaine type and the like.

One or more surfactants can be used, and 0.05 to 30% by weight, especially 0.1 to 1% by weight in the total composition.
0% by weight is preferable in terms of foaming and the like.

Further, the hair cosmetic composition of the present invention can contain a silicone derivative, and can improve the feel and the lingering scent. Such silicone derivatives include dimethylpolysiloxane, methylphenylsiloxane, methylphenylpolysiloxane, amino-modified silicone, polyether-modified silicone, fatty acid-modified silicone, fluorine-modified silicone, cyclic silicone,
Alkyl-modified silicone, alcohol-modified silicone,
Examples include aliphatic-modified silicone and epoxy-modified silicone.

One or more silicone derivatives can be used, and 0.01 to 15% by weight, particularly 0.1% by weight, based on the total composition.
It is preferable to add 1 to 10% by weight.

Further, the hair cosmetic composition of the present invention can contain a cationic polymer, and can improve the slipperiness and fragrance. Examples of such a cationic polymer include a cationized cellulose derivative, a cationic starch, a cationized guar gum derivative, a diallyl quaternary ammonium salt polymer, a diallyl quaternary ammonium salt / acrylamide copolymer, and a quaternized polyvinylpyrrolidone derivative. Can be

The form of the hair cosmetic of the present invention is appropriately selected and used in a liquid form, a powder form, a gel form, a granule form, etc. In order to effectively exert the deodorizing effect, water or water is used as a solvent. A liquid using a lower alcohol, preferably an aqueous lower alcohol solution, and more preferably an aqueous ethanol solution is preferred. Although the pH of the hair cosmetic of the present invention is not particularly limited, the pH is 4.5 in terms of sufficiently exhibiting the deodorizing effect.
-9.0, particularly preferably 5.0-8.0.

In the hair cosmetic composition of the present invention, an organic dibasic acid or a salt thereof having a difference of pK ₁ and pK ₂ of 1.7 or more, which is used as an active ingredient, and the above-mentioned components used if necessary In addition, ingredients commonly used in hair cosmetics can be appropriately used. For example, oils and fats, oily substances such as esters, humectants, thickeners, solubilizers, pH adjusters, organic solvents other than lower alcohols, film-forming agents, fine polymer particles, antioxidants, chelating agents, Coloring materials can be used.

The deodorant effect of the hair cosmetic of the present invention is effective for all hair cosmetics such as hair cleansing agents, treatments used in bathrooms, hair styling, hair growth and the like. Liquid, hair foam,
Differences in pK ₁ and pK ₂ between hair styling agents such as styling agents, hair treatments, hair sprays, and hair growth and hair growth products are 1.7.
Use of the above-mentioned organic dibasic acids or salts thereof provides an excellent deodorizing effect.

The hair cosmetic composition of the present invention is preferably filled in a spray container.
As shown in FIG. 1, FIG. 3 or FIG. 4 of Japanese Patent Publication No. 9-37, a container with a mist type spray having a spray amount of about 0.2 mL to 0.5 mL at a time is shown in FIG. It is preferable to use a pressure accumulating trigger which is excellent in liquid dripping prevention and spray uniformity as shown in FIG.

[0033]

EXAMPLES Example 1 Hair cosmetics shown in Table 3 were prepared, and the deodorizing effect of the present invention was evaluated by the following method. 250 mg of a test object is added to a 4 cm diameter ammonia deodorizing petri dish, and 50 mg of a 1% aqueous ammonia solution is dropped thereon, and the petri dish is allowed to stand in a 2.5 L desiccator for 20 minutes. The ammonia concentration (S) was measured. The deodorization rate was determined according to the following equation.

[0034]

(Equation 1)

Methyl mercaptan odor A filter paper 7 cm in length and 0.5 cm in width was impregnated with 150 mg of an analyte, and the same filter paper was impregnated with 50 mg of a 0.0002% methyl mercaptan propylene glycol solution.
The filter paper is set up on the L beaker, wrapped, and after standing for 20 minutes, the odor filled in the beaker is organoleptically evaluated. The initial odor intensity of methyl mercaptan was set to 3, the odor after 20 minutes was evaluated by three panelists according to the following evaluation criteria, and the average value (rounded to the first decimal place) was regarded as the deodorizing effect, and 2 or less. Was judged to be good for deodorization. Score 0: No odor or no odor 1: Intensity of not knowing what odor but faintly feeling 2: Sense of what odor but weak odor 3: Obvious or strong odor

Lower fatty acid odor isovaleric acid, acetic acid and 3-methyl-2-hexenoic acid
Evaluation was made in the same manner as in the case of methyl mercaptan odor, except that a lower fatty acid mixture mixed at a ratio of / 60/20 was used as a 1% aqueous solution and 150 mg was used.

Hair attached odor (tobacco odor, cooking odor, sweat odor ) Preparation of tobacco odor hair attached sample 5 m × 5 m × 5 maintained at a temperature of 25 ° C. and a humidity of 65 HR
20 g (15 cm) of a hair bundle made of human hair was suspended vertically on the floor such that the height from the floor to the top of the hair bundle was 3 m on one wall of a closed smoking room having a length of m. . In this smoking room, 10 men smoked 3 cigarettes each for 2 hours. At this time, the hair bundle attached to the hair bundle was used as a test sample. Preparation of cooked odor hair attached sample 5 mx 5 mx 5 maintained at a temperature of 25 ° C and a humidity of 65 HR
20 g (15 cm) of a hair bundle made of human hair was suspended vertically on the floor so that the height from the floor to the top of the hair bundle was 3 m on one wall of a closed cooking room having a length of m. . In this cooking room, three types of fish and meat were cooked for 30 minutes. The cooking odor generated during the cooking was attached to the hair to obtain a test sample. Preparation of sweat odor hair-adhered sample: 10 mx 10 m, maintained at a temperature of 25 ° C and a humidity of 65 HR
In a closed training room of × 10m, hair bundle about 7g
(15cm) is tied to the head of each of five men and women in units of three,
After each one hour running training, sweating,
The test sample was a total of 10 hair bundles obtained by combining three hair bundles collected from the head into one hair bundle. -Deodorization test Deodorization method and evaluation After applying 1 g of the hair cosmetic of the present invention prepared by an ordinary method to a sample to be deodorized and spreading the whole with a brush,
Immediately after the treatment and on the following day (after 24 hours), the deodorizing / masking effect was evaluated by the change over time. Evaluation is 2
Ask the panelists of 10 men and women in their 0s and 40s (5 persons each) to smell the smell of the deodorant / masking object.
The evaluation was made according to the criteria of each stage, and the average score was obtained. Average score 0 or more 1
Less than ◎, average score of 1 or more and less than 2 was evaluated as ○, 2 or more and less than 3 was evaluated as Δ, and 3 or more was evaluated as x. Evaluation criteria 0. Odorless 1. 1. Completely deodorized or masked 2. Almost or masking smell 3. Has a faint smell. 4. Odor (slightly deodorant or insufficient masking) Odor smells clearly (deodorant or insufficient masking)

[0038]

[Table 3]

Table 3 shows the measurement results of the deodorizing effect on tobacco odor, cooking odor and sweat odor attached to the hair, and Table 4 shows the measurement results of the deodorizing effect on ammonia, methyl mercaptan and lower fatty acids.

[0040]

[Table 4]

Each of the products 1 and 2 of the present invention exhibited an excellent deodorizing effect on ammonia, methyl mercaptan and lower fatty acids. All of the products 1 to 4 of the present invention exhibited an excellent deodorizing effect on tobacco odor, cooking odor and sweat odor attached to hair.

A fragrance composition A having the following composition was prepared, and hair cosmetics of Examples 2 to 12 were produced.

[0043]

[Table 5]

Example 2 (Lotion Agent)% cis-1,2-cyclohexanedicarboxylic acid 1.0 Styrene / methyl methacrylate / dimethylpolysiloxane Grout copolymer 3.5 Methylpolysiloxane (Silicone KF-96A, Shin-Etsu Silicone) 1.0) Acrylic acid / alkyl methacrylate copolymer (manufactured by PEMULEN TR-1 BF Goodrich) 0.2 L-arginine 0.2 dl-α-tocopherol acetate 0.1 PEG600 1.0 l- Menthol 0.3 Ethanol 30.0 Ethyl parahydroxybenzoate 0.2 Perfume composition A 0.1 Purified water Total 100.0

Example 3 (Hair Restorative)% cis-1,2-cyclohexanedicarboxylic acid 1.0 nicotinamide 0.1 dl-α-tocopherol acetate 0.05 β-glycyrrhetinic acid 0.1 assembly extract 1. 2 Carrot extract 0.3 Hypericum extract 0.5 l-menthol 0.2 Yellow myth extract 0.3 Polyoxyethylene (25EO) hydrogenated castor oil 0.2 Stearyltrimethylammonium chloride (Coatamine 86W; manufactured by Kao Corporation) 0.5 Ethanol 50.0 Perfume composition A 0.1 Purified water Total 100.0 Carbon dioxide: propellant (undiluted solution / propellant) 98/2

Example 4 (tonic agent)% cis-1,2-cyclohexanedicarboxylic acid 1.0 Stearyltrimethylammonium chloride (Coatamine 86PC; manufactured by Kao Corporation) 0.2 Polyoxyethylene (25EO) hydrogenated castor oil 1.0 Polyoxyethylene / polyoxypropylene stearyl ether 0.7 dl-α-tocopherol acetate 0.05 Dipotassium glycyrrhizinate 0.1 Triclosan 0.1 Ethanol 60.0 Perfume composition A 0.1 Purified water Total 100.0

Example 5 (Shampoo composition)% cis-1,2-cyclohexanedicarboxylic acid 1.0 Sodium polyoxyethylene (3) lauryl ether sulfate 10.0 Sodium lauryl sulfate 5.0 Polyoxyethylene (15) lauryl Ether 1.0 lauric acid diethanolamide 1.0 lauric acid amidopropyl betaine 1.0 stearyltrimethylammonium chloride 0.1 fragrance composition A 0.4 purified water total 100.0

Example 6 (rinse)% cis-1,2-cyclohexanedicarboxylic acid 1.0 stearyltrimethylammonium chloride 1.1 cetanol 3.0 isopropyl palmitate 0.5 dimethylpolysiloxane emulsion 4.0 hydroxyethylcellulose 0. 1 Perfume composition A 0.3 Purified water Total 100.0

Example 7 (Spray)% cis-1,2-cyclohexanedicarboxylic acid 1.0 Glycerin 2.0 Cetanol 4.0 Light liquid isoparaffin (Nisseki Mitsubishi Isosol 400) 4.0 Polyoxyethylene (20EO) iso Cetyl ether 0.5 Isostearyl glyceryl ether 2.0 Dimethyl polysiloxane 1.0 95% ethanol 85.4 Fragrance composition A 0.1 Total 100.0

Example 8 (Hair Mist)% cis-1,2-cyclohexanedicarboxylic acid 1.0 Polyoxyethylene hydrogenated castor oil 0.2 Stearyltrimethylammonium chloride (28%) 0.5 Sophthalanol 0.1 Glycerin 3.0 95% ethanol 10.0 Perfume composition A 0.05 Purified water Total 100.0

Example 9 (Hair Cream)% cis-1,2-cyclohexanedicarboxylic acid 1.0 dimethylpolysiloxane 5.0 sorbitol 10.0 α-monoisosialyl glyceryl ether 1.0 higher alcohol (oleyl alcohol) 7.0 Propylene glycol 2.0 95% ethanol 2.0 Polyoxyethylene sorbitan monooleate 4.0 Glycerol monostearate 2.0 Fragrance composition A 0.1 Purified water Total 100.0

Example 10 (hair restorer)% cis-1,2-cyclohexanedicarboxylic acid 1.0 95% ethanol 60.0 l-menthol 0.15 nicotinamide 0.15 β-glycyrrhetinic acid 0.12 Suertianin 1 .5 Huanggai extract 0.95 Hypericum grass extract 0.09 Tactile enhancer 0.2 pH adjuster 0.2 Perfume composition A 0.1 Purified water Total 100.0

Example 11 (hair restorer)% cis-1,2-cyclohexanedicarboxylic acid 1.0 95% ethanol 74.0 1-menthol 0.7 decyltetradecyldimethylamine oxide 0.15 1,3-butanediol 0.12 pantothenyl ethyl ether 0.4 nicotinamide 0.1 benzyl nicotinate 0.01 β-glycyrrhetinic acid 0.2 l-dodecene 0.01 titanium oxide 0.5 pH adjuster 4.5 perfume composition A 0.1 Purified water 100.0

Example 12 (Hair Liquid)% cis-1,2-cyclohexanedicarboxylic acid 1.0 Acrylic amide / acrylic acid / methoxy methacrylate polyethylene glycol copolymer 2.0 Polyoxypropylene butyl ether phosphoric acid (21P. O.) 7.0 Polyoxyethylene hydrogenated castor oil 5.0 Dipropylene glycol 3.0 Polyoxyethylene isocetyl ether (20EO) 0.4 Diethylene glycol monoethyl ether 0.6 2-Hydroxy-4-methoxybenzophenone-5 -Sulfonic acid 0.1 perfume composition A 0.3 sodium hydroxide 3.0 95% ethanol 60.0 buffer 0.4 hair penetrant 0.2 purified water total 100.0

Each of the hair cosmetics of Examples 2 to 12 was excellent in deodorizing effect of tobacco odor attached to hair, cooking odor of yakiniku dishes, and sweat odor.

[0056]

EFFECTS OF THE INVENTION The odors of amines, mercaptans, lower fatty acids and the like can be effectively removed, and it has an excellent deodorizing effect on tobacco odor and cooking odor attached to hair and sweat odor generated on the head.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 8, 2000 (200.11.
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0037

[Correction method] Change

[Correction contents]

Hair attached odor (tobacco odor, cooking odor, sweat odor ) Preparation of tobacco odor hair attached sample 5 m × 5 m × 5 maintained at a temperature of 25 ° C. and a humidity of 65 HR
20 g (15 cm) of a hair bundle made of human hair was suspended vertically on the floor such that the height from the floor to the top of the hair bundle was 3 m on one wall of a closed smoking room having a length of m. . In this smoking room, 10 men smoked 3 cigarettes each for 2 hours. At this time, the hair bundle attached to the hair bundle was used as a test sample. Preparation of cooked odor hair attached sample 5 mx 5 mx 5 maintained at a temperature of 25 ° C and a humidity of 65 HR
20 g (15 cm) of a hair bundle made of human hair was suspended vertically on the floor so that the height from the floor to the top of the hair bundle was 3 m on one wall of a closed cooking room having a length of m. . In this cooking room, three types of fish and meat were cooked for 30 minutes. The cooking odor generated during the cooking was attached to the hair to obtain a test sample. Preparation of sweat odor hair-adhered sample: 10 mx 10 m, maintained at a temperature of 25 ° C and a humidity of 65 HR
In a closed training room of × 10m, hair bundle about 7g
(15cm) is tied to the head of each of five men and women in units of three,
After each one hour running training, sweating,
The test sample was a total of 10 hair bundles obtained by combining three hair bundles collected from the head into one hair bundle. -Deodorization test Deodorization method and evaluation After applying 1 g of the hair cosmetic of the present invention prepared by an ordinary method to a sample to be deodorized and spreading the whole with a brush,
Immediately after the treatment and on the following day (after 24 hours), the deodorizing / masking effect was evaluated by the change over time. Evaluation is 2
Ask the panelists of 10 men and women in their 0s and 40s (5 persons each) to smell the smell of the deodorant / masking object.
The evaluation was made according to the criteria of each stage, and the average score was obtained. Average score 0 or more 1
Less than ◎, average score of 1 or more and less than 2 was evaluated as ○, 2 or more and less than 3 was evaluated as Δ, and 3 or more was evaluated as x. Evaluation criteria 0. Odorless 1. 1. Completely deodorized or masked Almost deodorized or masked smell 3. Has a faint smell. 4. Odor (slightly deodorant or insufficiently masked) Smell badly (deodorant or insufficient masking) ────────────────────────────────────── ───────────────

[Procedure amendment]

[Submission date] November 8, 2000 (200.11.
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0037

[Correction method] Change

[Correction contents]

Hair attached odor (tobacco odor, cooking odor, sweat odor ) Preparation of tobacco odor hair attached sample 5 m × 5 m × 5 maintained at a temperature of 25 ° C. and a humidity of 65 HR
20 g (15 cm) of a hair bundle made of human hair was suspended vertically on the floor such that the height from the floor to the top of the hair bundle was 3 m on one wall of a closed smoking room having a length of m. . In this smoking room, 10 men smoked 3 cigarettes each for 2 hours. At this time, the hair bundle attached to the hair bundle was used as a test sample. Preparation of cooked odor hair attached sample 5 mx 5 mx 5 maintained at a temperature of 25 ° C and a humidity of 65 HR
20 g (15 cm) of a hair bundle made of human hair was suspended vertically on the floor so that the height from the floor to the top of the hair bundle was 3 m on one wall of a closed cooking room having a length of m. . In this cooking room, three types of fish and meat were cooked for 30 minutes. The cooking odor generated during the cooking was attached to the hair to obtain a test sample. Preparation of sweat odor hair-adhered sample: 10 mx 10 m, maintained at a temperature of 25 ° C and a humidity of 65 HR
In a closed training room of × 10m, hair bundle about 7g
(15cm) is tied to the head of each of five men and women in units of three,
After each one hour running training, sweating,
The test sample was a total of 10 hair bundles obtained by combining three hair bundles collected from the head into one hair bundle. -Deodorization test Deodorization method and evaluation After applying 1 g of the hair cosmetic of the present invention prepared by an ordinary method to a sample to be deodorized and spreading the whole with a brush,
Immediately after the treatment and on the following day (after 24 hours), the deodorizing / masking effect was evaluated by the change over time. Evaluation is 2
Ask the panelists of 10 men and women in their 0s and 40s (5 persons each) to smell the smell of the deodorant / masking object.
The evaluation was made according to the criteria of each stage, and the average score was obtained. Average score 0 or more 1
Less than ◎, average score of 1 or more and less than 2 was evaluated as ○, 2 or more and less than 3 was evaluated as Δ, and 3 or more was evaluated as x. Evaluation criteria 0. Odorless 1. 1. Completely deodorized or masked 2. Almost deodorized or masked 3. Has a faint smell. 4. Odor (slightly deodorant or insufficient masking) Odor smells clearly (deodorant or insufficient masking)

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Claims (5)

[Claims] 1. The first acid dissociation index p at 25 ° C.
A hair cosmetic containing an organic dibasic acid and / or a salt thereof, wherein the difference between K ₁ and the second acid dissociation index pK ₂ is 1.7 or more. 2. The second acid dissociation index p of an organic dibasic acid
The hair cosmetic composition of claim 1 wherein K ₂ is 6-8. 3. The hair cosmetic according to claim 1, which contains water or a lower alcohol. 4. The method according to claim 1, further comprising a fragrance.
The hair cosmetic according to the above item. 5. The hair cosmetic composition according to claim 1, further comprising a surfactant.