WO2022254525A1

WO2022254525A1 - Hair conditioning agent composition in non-aerosol foamer container

Info

Publication number: WO2022254525A1
Application number: PCT/JP2021/020692
Authority: WO
Inventors: Ladawan SUMUNNEE; Chalouyluk PHOOPICHAYANUN; Yuuki YOKOTA
Original assignee: Kao Corporation
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-12-08

Abstract

Provided is a hair conditioning agent composition in a non-aerosol foamer container, comprising ingredients (A) to (C): (A) cationic surfactant; (B) nonionic surfactant; and (C) cationized cellulose, wherein the mass ratio of ingredient (C) to ingredient (B), (C)/(B) is 0.0005 or more and 0.40 or less.

Description

HAIR CONDITIONING AGENT COMPOSITION IN NON-AEROSOL FOAMER CONTAINER

Field of invention

The present invention relates to a hair conditioning agent composition in a non-aerosol foamer container.

Background of invention

In Southeast Asian countries such as Thailand, many women have long hair, and beauty of hair is of great concern to such women. These women aspire to have healthy, glossy and smooth hair, and are afraid of having their hair damaged by shampoo, and apt to limit the frequency of shampooing to about once every two to three days in general.

For imparting gloss and smoothness to hair, a hair conditioner is used, and the dosage form thereof is generally creamy. However, application of a high-viscosity creamy hair conditioner to the entire long hair requires a large amount of the agent and a large amount of time, and are likely to cause an uneven coating state.
Also, the applied conditioner is washed off using water at about 30℃. It takes much time to wash off the creamy agent, and rinsing is likely to be insufficient. It also takes much time for drying, and stickiness tends to be consistent even after the drying.

In this context, a hair conditioner is known which is applied to hair in a foam state. For example, Patent Literature 1 describes a hair rinse composition for a non-aerosol-type foam discharge container, comprising an ampholytic surfactant, a cationic surfactant and a higher alcohol at a specific quantitative ratio. The hair rinse composition enables discharge of stable foam, and is smoothly rinsed. Patent Literature 2 describes an aerosol hair rinse/treatment system comprising a mixture of a hair treatment or rinse-base composition and a low-boiling-point hydrocarbon. The aerosol hair rinse/treatment system can be applied to hair in a short time.

(Patent Literature 1) JP-A-2006-104149
(Patent Literature 2) DE-A-10304721

The present invention provides a hair conditioning agent composition in a non-aerosol foamer container, comprising ingredients (A) to (C):
(A) cationic surfactant;
(B) nonionic surfactant; and
(C) cationized cellulose,
wherein the mass ratio of ingredient (C) to ingredient (B), (C)/(B) is 0.0005 or more and 0.40 or less.

Detailed description of invention

Long hair is a desire of beauty, which comes with trouble to maintain it daily by process of shampooing, conditioning, and drying. The non-aerosol foam conditioner described in Patent Literature 1 still cause problem due to the uneven, unstable foam, which is unevenly applied on long hair therefore insufficient conditioning effect or excessive application. The aerosol foam conditioner described in Patent Literature 2 requires use of a low-boiling-point hydrocarbon as a propellant, and a container system including an aerosol dispenser, therefore is not simple yet lesser environmentally preferable.

Accordingly, the present invention relates to a hair conditioning agent composition which can be discharged as even and stable foam from a non-aerosol foamer container.

(Ingredient (A): cationic surfactant)
Examples of the cationic surfactant as ingredient (A) include (i) alkyltrimethylammonium salts, (ii) alkoxyalkyltrimethylammonium salts and (iii) dialkyldimethylammonium salts.

(i) Alkyltrimethylammonium salt
Examples of the alkyltrimethylammonium salt include those represented by formula (1):
R¹-N⁺(CH₃)₃ X^- (1)
wherein R¹ represents an alkyl group having 12 or more and 22 or less carbon atoms, and X^- represents a halide ion such as a chloride ion or a bromide ion; a methosulfate ion or a methocarbonate ion; or the like.

Specific examples thereof include cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride and behenyltrimethylammonium methosulfate.

(ii) Alkoxyalkyltrimethylammonium salts
Examples of the alkoxyalkyltrimethylammonium salt include those represented by formula (2):
R²-O-R³-N⁺(CH₃)₃ X^- (2)
wherein R² represents an alkyl group having 12 or more and 22 or less carbon atoms, R³ represents an ethylene group or a propylene group optionally substituted with a hydroxy group, and X^- represents a halide ion such as a chloride ion or a bromide ion; a methosulfate ion or a methocarbonate ion; or the like.

Specific examples thereof include stearoxypropyltrimethylammonium chloride, stearoxyethyltrimethylammonium chloride and stearoxyhydroxypropyltrimethylammonium chloride.

(iii) Dialkyldimethylammonium salt
Examples of the dialkyldimethylammonium salt include those represented by formula (3):
(R⁴)₂N⁺(CH₃)₂ X^- (3)
wherein R⁴s each independently represent an alkyl group having 12 or more and 22 or less carbon atoms, or a benzyl group, and X^- represents a halide ion such as a chloride ion or a bromide ion; a methosulfate ion or a methocarbonate ion; or the like.

Specific examples thereof include dilauryldimethylammonium chloride and distearyldimethylammonium chloride.

Of these, (i) alkyltrimethylammonium salts and (iii) dialkyldimethylammonium salts are preferable from the viewpoint of imparting an excellent feel to hair and the viewpoint of stability to decomposition in the presence of an alkaline agent.

These cationic surfactants can be used alone, or in combination of two or more thereof. The content of ingredient (A) in the hair conditioning agent composition is preferably 0.25% by mass or more, more preferably 0.80% by mass or more, still more preferably 1.0% by mass or more, and preferably 3.0% by mass or less, more preferably 2.80% by mass or less, still more preferably 2.50% by mass or less, from the viewpoint of reducing friction among hair strains and enhancing an excellent feeling of hair and stability of composition.

(Ingredient (B): nonionic surfactant)
Examples of the nonionic surfactant as ingredient (B) include polyoxyalkylene alkyl or alkenyl ethers, alkyl alkanolamides, alkyl polyglucosides and alkyl glyceryl ethers.

Examples of the polyoxyalkylene alkyl or alkenyl ether include polyoxyethylene alkyl or alkenyl ethers, polyoxypropylene alkyl or alkenyl ethers and polyoxyethylene polyoxypropylene alkyl or alkenyl ethers. Preferably, those represented by formula (4) can be used:

R⁵-O-[(CH₂)_x-O]_n-H (4)
wherein R⁵ represents a linear or branched alkyl group or alkenyl group having 8 or more and 22 or less carbon atoms, x represents a number of 2 or 3, and n represents an average number of 1 or more and 100 or less.

In formula (4), the number of carbon atoms of R⁵ is preferably 10 or more, more preferably 12 or more, and preferably 20 or less, more preferably 18 or less, from the viewpoint of enhancing stability of foam. Also, n is preferably 2 or more, more preferably 4 or more, and preferably 80 or less, more preferably 60 or less, still more preferably 45 or less. When as ingredient (B), those represented by formula (4) are used, one ingredient may be used alone, or two or more ingredient having different n values may be used.

Specific examples of the polyoxyalkylene alkyl or alkenyl ether include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxypropylene lauryl ether, polyoxypropylene cetyl ether, polyoxypropylene stearyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene cetyl ether and polyoxyethylene polyoxypropylene stearyl ether.

As the alkyl alkanolamide, those represented by formula (5) can be used:

wherein R⁶ represents a linear or branched alkyl group having 5 or more and 23 or less carbon atoms, and R⁷ and R⁸ each independently represent a hydrogen atom or an alkanol group having 1 or more and 4 or less carbon atoms, provided that both R⁷ and R⁸ are not hydrogen atoms at the same time.

The number of carbon atoms of R⁶ is preferably 8 or more, more preferably 10 or more, still more preferably 12 or more, and preferably 22 or less, more preferably 20 or less, still more preferably 18 or less, from the viewpoint of enhancing stability of foam.

Specific examples of the alkyl alkanolamide include coconut oil fatty acid monoethanolamide, coconut oil fatty acid diethanolamide, isopropanolamide laurate and diethanolamide oleate.

The alkyl polyglucoside is preferably one that has an alkyl group having 6 or more and 22 or less carbon atoms and has an average condensation degree of glucoside units of 1 or more and 7 or less, from the viewpoint of enhancing stability of foam. Specific examples thereof include octyl polyglucoside, 2-ethylhexyl polyglucoside, decyl polyglucoside, lauryl polyglucoside, myristyl polyglucoside, palmityl polyglucoside, isostearyl polyglucoside, stearyl lauryl polyglucoside, oleyl polyglucoside and behenyl polyglucoside. Of these alkyl polyglucosides are preferably those having an alkyl group with 8 or more and 18 or less carbon atoms and an average condensation degree of glucoside units of 1 or more and 7 or less, or even 1 or more and 2 or less.

Examples of the alkyl glyceryl ether include those in which the number of carbon atoms of the alkyl group is preferably 8 or more, more preferably 14 or more, and preferably 30 or less, more preferably 20 or less and the alkyl is preferably a branched alkyl group, from the viewpoint of enhancing stability of foam. Specific examples thereof include isodecyl glyceryl ether, diglyceryl isodecyl ether, 2-ethylhexyl glyceryl ether, isostearyl glyceryl ether and isostearyl pentaerythryl glyceryl ether.

Of these nonionic surfactants, alkyl polyglucosides, polyoxyalkylene alkyl or alkenyl ethers, particularly alkyl polyglucosides are preferable from the viewpoint of enhancing stability of foam.

The nonionic surfactants as ingredient (B) can be used alone, or in combination of two or more thereof.
Ingredient (B) is preferably a combination of two or more nonionic surfactants, and preferably include alkyl polyglucosides. The content of ingredient (B) in the hair conditioning agent composition is preferably 1% by mass or more, more preferably 1.2% by mass or more, still more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 7% by mass or less, still more preferably 4% by mass or less, from the viewpoint of enhancing stability of foam.

The total content of ingredient (A) and ingredient (B) in the hair conditioning agent composition of the present invention is preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 4% by mass or more, and preferably 13% by mass or less, more preferably 10% by mass or less, still more preferably 7%, further preferably 6.5%, still further more preferably 6% by mass or less, from the viewpoint of reducing friction among hair strains, enhancing an excellent feeling of hair and stability of foam.

(Ingredient (C): cationized cellulose)
Examples of the cationized cellulose PPG-2 hydroxypropyltrimonium cellulose commercially designated as SOFCARE C-HP2-W (Kao Corporation); 0-[2-hydroxy-3-(trimethylammonio)propyl]hydroxycellulose chloride (INCI name: Polyquaternium-10) commercially designated as POIZs C-60H and C-150L (Kao Corporation), LEOGARDs G and GP (Lion Corporation), POLYMER JRs-125, 400 and 30M (The Dow Chemical Company) and the like; and hydroxyethylcellulose dimethyldiallylammonium chloride (INCI name: Polyquaternium-4) commercially designated as CELQUATs H-100 and L-200 (Akzo Novel N.V.) and the like.

The content of ingredient (C) in the hair conditioning agent composition of the present invention is preferably 0.001% by mass or more, more preferably 0.003% by mass or more, still more preferably 0.020% by mass or more, and preferably 0.60% by mass or less, more preferably 0.50% by mass or less, still more preferably 0.30% by mass or less, from the viewpoint of stability of foam, appearance of foam, and enhancing an excellent feeling of hair.

The mass ratio of ingredient (C) to ingredient (B), (C)/(B) is 0.0005 or more, preferably 0.0010 or more, more preferably 0.0050 or more, still more preferably 0.0070 or more, and 0.400 or less, preferably 0.250 or less, more preferably 0.150 or less, still more preferably 0.145 or less, further preferably 0.130 or less, from the viewpoint of enhancing excellent feeling of hair, stability of foam, and storage stability.

The mass ratio of ingredient (C) to ingredient (A), (C)/(A) is preferably 0.0005 or more, more preferably 0.0010 or more, still more preferably 0.010 or more, even more preferably 0.020 or more, and preferably 0.300 or less, more preferably 0.200 or less, still more preferably 0.120 or less, even more preferably 0.100 or less, further even more preferably 0.070 or less, still further even more preferably 0.0240 or less, from the viewpoint of reducing friction among hair strains, enhancing excellent feeling of hair, and storage stability.

(Ingredient (D): ampholytic surfactant)
The hair conditioning agent composition of the present invention may further comprise an ampholytic surfactant as ingredient (D). Examples of the ampholytic surfactant include imidazoline, carbobetaine, amide betaine, sulfobetaine, hydroxysulfobetaine and amide sulfobetaine.
Betaine surfactants such as alkyldimethylaminoacetic acid betaines and fatty acid amidopropyl betaines are more preferable, and fatty acid amidopropyl betaines are still more preferable.

The ampholytic surfactants as ingredient (D) can be used alone, or in combination of two or more thereof. The content of ingredient (D) in the hair conditioning agent composition is preferably 0.50% by mass or more, more preferably 0.75% by mass or more, still more preferably 0.95% by mass or more, and preferably 1.5% by mass or less, more preferably 1.35% by mass or less, still more preferably 1.26% by mass or less, from the viewpoint of increasing volume of foam, and stably boosted foam.

(Ingredient (E): other conditioning ingredients)
The hair conditioning agent composition of the present invention may comprise a conditioning ingredient suitable for application to hair, and the conditioning ingredient is typically a polymer or oil soluble or dispersible in the hair conditioning agent composition, and sticks to hair during rinsing or when diluted with water or shampoo. Examples of the conditioning ingredient include cationic polymers other than ingredient (C), silicone, higher alcohols and organic conditioning oil.

- Cationic polymer other than ingredient (C)
The cationic polymer is a polymer having a cationic group or a group which can be ionized to a cationic group. The cationic polymers include ampholytic polymers which are generally cationic. That is, examples of the cationic polymer include those that contain an amino group or an ammonium group on the side chain of the polymer chain, or contain a diallyl quaternary ammonium salt as a constituent unit, e.g. cationic starch, cationized guar gum, polymers or copolymers of diallyl quaternary ammonium salts, and quaternized polyvinyl pyrrolidone.

Specific examples of the cationic polymer include dimethyldiallylammonium chloride polymers (polyquaternium-6, e.g. MERQUAT 100; Lubrizol Advanced Materials Inc.), dimethyldiallylammonium chloride-acrylic acid copolymers (polyquaternium-22, e.g. MERQUAT 280 and MERQUAT 295; Lubrizol Advanced Materials Inc.), dimethyldiallylammonium chloride-acrylamide copolymers (polyquaternium-7, e.g. MERQUAT 550; Lubrizol Advanced Materials Inc.) and quaternized polyvinylpyrrolidone (polyquaternium-11, e.g. GAFQUAT 734, GAFQUAT 755 and GAFQUAT 755N; Ashland Inc.).

These cationic polymers other than ingredient (C) can be used alone, or in combination of two or more thereof, and the content of the cationic polymer in the hair conditioning agent composition is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and preferably 4.0 mass% or less, more preferably 2.5% by mass or less, still more preferably 1.8% by mass or less from the viewpoint of enhancing feeling of hair, and storage stability of the composition.

- Silicone
Examples of the silicone include dimethylpolysiloxane, modified silicone (e.g. amino-modified silicone, fluorine-modified silicone, alcohol-modified silicone, polyether-modified silicone, epoxy-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, fatty acid-modified silicone and cationized silicone), cyclic dimethylpolysiloxane and methylphenylpolysiloxane, and dimethylpolysiloxane, polyether-modified silicone and amino-modified silicone are preferable. As such silicone, one diluted or dispersed with volatile silicone, non-volatile silicone or the like, or one dispersed in water can also be used.

More specific examples include BY11-026, BY22-19, FZ-3125 and SH200-1,000,000cs (Dow Toray Co., Ltd.) and TSF451-100MA (Momentive Performance Materials Japan LLC) [each of which is dimethylpolysiloxane]; TSF4440 (Momentive Performance Materials Japan LLC) and KF-6005 and KF-6011 (Shin-Etsu Chemical Co., Ltd.) [each of which is polyether-modified silicone]; SF8451C, SF8452C, SF8457C, SM8704C and SM8904 (Dow Toray Co., Ltd.) and KF-867 (Shin-Etsu Chemical Co., Ltd.) [each of which is amino-modified silicone]; and SILSOFT SILK (Momentive Performance Materials LLC) [cationized silicone].

These silicones can be used alone, or in combination of two or more thereof, and the content of the silicone in the hair conditioning agent composition is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and preferably 4.0% by mass or less, more preferably 2.5% by mass or less, still more preferably 1.8% by mass or less.

- Higher alcohol
The hair conditioning agent composition of the present invention may include a higher alcohol such as aliphatic alcohol having 8 to 22 carbon atoms for example cetyl alcohol, stearyl alcohol, behenyl alcohol. But since the stiffness of the gel network formed by higher alcohol and cationic surfactant may disrupt discharge of the non-aerosol foam, yet oiliness of higher alcohol may prevent to achieve clean feeling during the hair rinse, it is preferably substantially not included a higher alcohol. The content of higher alcohol in the hair conditioning agent composition is preferably 0.1% by mass or less, more preferably 0.01% by mass or less, still more preferably 0.001% by mass or less.

- Organic conditioning oil
It is also preferable that the hair conditioning agent composition contain organic conditioning oil for imparting excellent usability. The organic conditioning oil which is suitably used as a conditioning ingredient is preferably a low-viscosity water-insoluble liquid, and the viscosity of such organic conditioning oil as measured at 40℃ is preferably 1 mPa・s or more, more preferably 2 mPa・s or more, and preferably 200 mPa・s or less, more preferably 100 mPa・s or less, still more preferably 50 mPa・s or less.

Examples of the organic conditioning oil include hydrocarbon oil, fatty acid esters and mixtures thereof.
The content of the organic conditioning oil in the hair conditioning agent composition is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and preferably 0.1% by mass or less, more preferably 0.01% by mass or less.

Examples of the hydrocarbon oil include cyclic hydrocarbons, saturated or unsaturated linear aliphatic hydrocarbons and saturated or unsaturated branched aliphatic hydrocarbons, as well as polymers and mixtures thereof. The linear hydrocarbon oil has preferably from 12 to 19 carbon atoms. The branched hydrocarbon oil contains a hydrocarbon polymer, has preferably more than 19 carbon atoms, and also includes polyolefins which are synthetic hydrocarbon oil. The polyolefin is a polyolefin which is liquid at room temperature, more preferably a liquid poly-α-olefin, most preferably a liquid hydrogenated poly-α-olefin. The polyolefin to be used here is prepared by polymerizing an olefin monomer having from 4 to 14 carbon atoms, preferably from 6 to 12 carbon atoms.

Examples of the fatty acid ester include fatty acid esters having at least 10 carbon atoms. Examples of these fatty acid esters include esters having a hydrocarbon chain derived from a fatty acid and an alcohol (e.g. monoesters, polyhydric alcohol esters and di- and tricarboxylic acid esters). The hydrocarbon groups of these fatty acid esters may have other compatible functional groups such amide groups and alkoxy groups as substituents, or may be covalently bonded to the functional groups. More specifically, alkyl and alkenyl esters of fatty acids having an aliphatic chain having from 10 to 22 carbon atoms, aliphatic alcohol-carboxylic acid esters having an aliphatic chain derived from an alkyl and/or alkenyl alcohol having from 10 to 22 carbon atoms, and mixtures thereof are preferably used.

Specific preferred examples of the fatty acid ester include isopropyl isostearate, hexyl laurate, isohexyl laurate, isohexyl palmitate, isopropyl palmitate, decyl oleate, isodecyl oleate, hexadecyl stearate, decyl stearate, dihexadecyl adipate, lauryl lactate, myristyl lactate, cetyl lactate, oleyl stearate, oleyl oleate, oleyl myristate, lauryl acetate, cetyl propionate and dioleyl adipate.

(Medium)
The hair conditioning agent composition of the present invention may comprise water and/or an organic solvent as a medium, and water is preferable from the viewpoint of solubility of other ingredients and economic efficiency.
Examples of the organic solvent include lower alkanols such as ethanol, 1-propanol and 2-propanol; aromatic alcohols such as benzyl alcohol and 2-benzyloxyethanol; polyols such ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, pentylene glycol, hexylene glycol glycerin, diglycerin and polyglycerin; alkoxy alcohols such as ethoxyethanol, ethoxydiglycol and methoxyethanol; N-alkyl pyrrolidones such as N-methylpyrrolidone and N-ethylpyrrolidone; alkylene carbonates such as propylene carbonate; and lactones such as γ-valerolactone and γ-caprolactone. From the viewpoint of viscosity stability over time, one or more selected from the group consisting of ethanol, propylene glycol, 1-propanol, 2-propanol, benzyl alcohol, polyethylene glycol and glycerin are preferable, and in particular, one or more selected from the group consisting of ethanol and propylene glycol are more preferable.

The content of water in the hair conditioning agent composition of the present invention is preferably 75% by mass or more, more preferably 80% by mass or more, still more preferably 85% by mass or more, from the viewpoint of solubility of other ingredients and economic efficiency and preferably 98% by mass or less, more preferably 95% by mass or less, still more preferably 93% by mass or less, from the viewpoint of ease of drying.

The organic solvents can be used alone, or in combination of two or more thereof. The content of the organic solvent in the hair conditioning agent composition is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.3% by mass or more, from the viewpoint of improving solubility of other ingredients contained, antiseptic properties and viscosity stability, and preferably 4.0 mass% or less, more preferably 2.5% by mass or less, still more preferably 1.5% by mass or less, from the viewpoint of suppression of flammability and irritating property.

(Others)
Other ingredients which are typically used as cosmetic raw materials can be further added to the hair conditioning agent composition of the present invention as long as its stable liquid form and functions as a hair conditioning agent composition are not impaired.
Examples of such optional ingredients include penetration enhancers, pearl ingredients, antiseptic agents, sequestering agents, stabilizers, antioxidants, ultraviolet absorbers, moisturizing agents and flavoring agents. Examples of specific optional ingredients include higher fatty acids, protein hydrolysates, protein derivatives, amino acids, plant extracts, vitamins and flavors.

(pH)
The pH of the hair conditioning agent composition of the present invention (30℃) is preferably 3.0 or more, more preferably 3.3 or more, still more preferably 3.5 or more, from the viewpoint of suppression of irritation, and preferably 5.5 or less, more preferably 4.5 or less, from the viewpoint of suppression of irritation, preservation of formulation and long-term stability of pH.

(Viscosity)
The viscosity of the hair conditioning agent composition of the present invention as liquid form is preferably 1 mPa・s or more, more preferably 4.5 mPa・s or more, still more preferably 10 mPa・s or more, from the viewpoint of application properties to hair and prevention of falling from hands and hair, and preferably 300 mPa・s or less, more preferably 200 mPa・s or less, still more preferably 100 mPa・s or less, from the viewpoint of ease of application and spreading on hair. Here, in the present invention, the viscosity of the hair conditioning agent composition was measured at 30℃ by single cylinder rotational viscometer (spindle type, Model TVB-10MW, Manufactured by Toki Sangyo Co., Ltd.) with spindle M1 at 60 rpm for 1 minute. When the viscosity was 100 mPa・s or more, the measurement would be redone by spindle M3 at 30 rpm instead.

(Non-aerosol foamer container)
The non-aerosol foamer container is used for mixing air with the hair conditioning agent composition filled in the container without use of a spray, and discharging the mixture in a foam. Use of the foamer container also enables prevention of scattering of the discharged agent.
As compared to an aerosol-type container, a non-aerosol-type container enables production of products at lower cost, and allows products to be handled in distribution more safely because a spray of high-pressure gas is not required.

As a foamer container, a known pump foamer container having foam discharging means, a squeeze foamer container, an electric mixer, a pressure accumulation pump foamer container or the like can be used. Specific examples thereof include Pump Foamer Types E3 and F2 (DAIWA CAN COMPANY) described in "FOOD & PACKAGING" (vol. 35, No. 10, p 588-593 (1994); vol. 35, No. 11, p 624-627 (1994); vol. 36, No. 3, p 154 to 158 (1995)), Squeeze Foamer (DAIWA CAN COMPANY), Electric Mixer (Matsushita Electric Industrial Co., Ltd.) and Air Spray Foamer (Air Spray International Co., Ltd.). The foamer container used for the hair conditioning agent composition of the present invention is preferably a pump foamer container or a squeeze foamer container because it is inexpensive and convenient.

The pump foamer container or the squeeze foamer container has foam homogenizing means such as a net, preferably a thin net from the viewpoint of preventing occurrence of clogging. Here, the mesh of the net is of preferably from 50 to 400 mesh, more preferably from 70 to 350 mesh, still more preferably from 100 to 320 mesh. Here, the mesh refers to the number of meshes per inch. Use of a net whose mesh is in the above-mentioned range enables generation of creamy foam. As the material of such a mesh, nylon, polyester and the like can be preferably exemplified.

In the non-aerosol foamer container for storing the hair conditioning agent composition of the present invention, at least one, preferably two or more such nets are disposed. More preferably, two nets are disposed from the viewpoint of economic efficiency, fineness of from and resistance to clogging.

(Method of use)
The hair conditioning agent composition of the present invention is applied to hair, and then washed off.
Examples thereof include those used in bathrooms, such as hair rinses, hair conditioners, hair treatments and hair packs.

With regard to the embodiments described above, preferred aspects of the present invention will be further disclosed below.

<1>
A hair conditioning agent composition in a non-aerosol foamer container, comprising ingredients (A) to (C):
(A) cationic surfactant;
(B) nonionic surfactant; and
(C) cationized cellulose,
wherein the mass ratio of ingredient (C) to ingredient (B), (C)/(B) is 0.0005 or more and 0.40 or less.

<2>
The hair conditioning agent composition in a non-aerosol foamer container according to <1>, wherein ingredient (A) is preferably one or more selected from the group consisting of alkyltrimethylammonium salts, alkoxyalkyltrimethylammonium salts and dialkyldimethylammonium salts.

<3>
The hair conditioning agent composition in a non-aerosol foamer container according to <1> or <2>, wherein the content of ingredient (A) is preferably 0.25% by mass or more, more preferably 0.80% by mass or more, still more preferably 1.0% by mass or more, and preferably 3.0% by mass or less, more preferably 2.80% by mass or less, still more preferably 2.50% by mass or less.

<4>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <3>, wherein ingredient (B) preferably include alkyl polyglucosides.

<5>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <4>, wherein ingredient (B) is preferably a combination of two or more nonionic surfactants.

<6>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <5>, wherein the content of ingredient (B) is preferably 1% by mass or more, more preferably 1.2% by mass or more, still more preferably 2% by mass or more, and preferably 10% by mass or less, more preferably 7% by mass or less, still more preferably 4% by mass or less.

<7>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <6>, wherein the total content of ingredient (A) and ingredient (B) is preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 4% by mass or more, and preferably 13% by mass or less, more preferably 10% by mass or less, still more preferably 7%, further preferably 6.5%, still further more preferably 6% by mass or less.

<8>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <7>, wherein the content of ingredient (C) is preferably 0.001% by mass or more, more preferably 0.003% by mass or more, still more preferably 0.020% by mass or more, and preferably 0.60% by mass or less, more preferably 0.50% by mass or less, still more preferably 0.30% by mass or less.

<9>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <8>, wherein the mass ratio of ingredient (C) to ingredient (A), (C)/(A) is preferably 0.0005 or more, more preferably 0.0010 or more, still more preferably 0.010 or more, even more preferably 0.020 or more, and preferably 0.300 or less, more preferably 0.200 or less, still more preferably 0.120 or less, even more preferably 0.100 or less, further even more preferably 0.070 or less, still further even more preferably 0.0240 or less.

<10>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <9>, wherein the mass ratio of ingredient (C) to ingredient (B), (C)/(B) is preferably 0.0010 or more, more preferably 0.0050 or more, still more preferably 0.0070 or more, and preferably 0.250 or less, more preferably 0.150 or less, still more preferably 0.145 or less, further preferably 0.130 or less.

<11>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <10>, preferably further comprising, as component (D), ampholytic surfactant.

<12>
The hair conditioning agent composition in a non-aerosol foamer container according to <11>, wherein the content of ingredient (D) is preferably 0.50% by mass or more, more preferably 0.75% by mass or more, still more preferably 0.95% by mass or more, and preferably 1.5% by mass or less, more preferably 1.35% by mass or less, still more preferably 1.26% by mass or less.

<13>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <12>, wherein the content of higher alcohol is preferably 0.1% by mass or less, more preferably 0.01% by mass or less, still more preferably 0.001% by mass or less.

<14>
The hair conditioning agent composition in a non-aerosol foamer container according to any one of <1> to <13>, which is applied to hair, and then washed off.

Examples

Hereinafter, non-limiting Examples of the non-aerosol hair conditioning agent composition described herein will be shown below.

Examples 1 to 11 and Comparative Example 1
Ingredients of items 1 to 11 shown in Table 1 and deionized water were added to a 1,000 mL glass beaker and a propeller stirrer (3-bladed) that equipped with Eurostar Digital Mixing Stirrer (manufactured by IKA-Werke GmbH & Co.KG). The mixture was stirred in with the stirring speed 150 rpm at 70℃ in a water bath (Model: Advantech TBS271SA) for 1 hour. Upon completion, the beaker glass was taken out from the water bath for cooling down to 40℃. Thereafter, the ingredients of items 12 to 15 were added to the mixture, and the mixture was stirred with the stirring speed 150 rpm for 40 minutes to obtain a hair conditioning agent composition of each of Examples 1 to 11 and Comparative Example 1 shown in Tables 2 and 3. "-" indicates that the ingredient was not added.

(Method for measuring viscosity)
The viscosity of the composition of each Example was measured at 30℃ using a single cylinder rotational viscometer (spindle type, model: TVB-10 MW, manufactured by TOKI SANGYO CO., LTD.) with a spindle M1 at 60 rpm for 1 minute. When the viscosity was 100 mPa・s or more, measurement was performed over again using a spindle M3 at 30 rpm instead.

(Method for measuring pH)
The composition of each Example was diluted to a 5% by mass solution with deionized water in light of a concentration during actual use of the composition. The pH of each solution was measured at 30℃ using a pH meter with an Inlab ExpertPro-ISM probe (model: S220SevenCompact pH/Ion Meter, manufactured by Mettler-Toledo).

<Evaluation Method>
- Foam stability (30℃)
The composition of each Example was filled into a 250 mL bottle equipped with a pump dispenser (having mesh gaps of 200 and 350 therein) and was stored in a thermostatic water bath (model: BK500, manufactured by Yamato Scientific Co., Ltd.) at 30℃ for 30 minutes or more. Thereafter, the composition of each Example was pumped by the hand ten times to form foam in a 150 mL beaker glass. The beaker containing the foam of each Example was vertically knocked on a hard floor ten times to remove air voids, and the foam height was measured with a line gauge in centimeters (cm) after a lapse of 5 minutes and after a lapse of 10 minutes. This procedure was repeated three times, and an average of the foam heights was determined. Next, from the average of the foam heights, a difference (%) from the average (standard) in Example 1 was calculated in accordance with expression (1).
Expression (1)
difference (%) = [(standard average foam height - average foam height in Example)/standard average foam height] × 100

The foam stability was evaluated on the following five-point scale.
1: The difference from the standard is 0% or more and 10% or less.
2: The difference from the standard is more than 10% and 20% or less.
3: The difference from the standard is more than 20% and 25% or less.
4: The difference from the standard is more than 25% and 30% or less.
5: The difference from the standard is more than 30%.
In the case where it was not possible to discharge foam, "N/A" was written, which means that measurement data is not available.

- Appearance of foam
The composition of each Example was filled into a 250 mL bottle equipped with a pump dispenser (having mesh gaps of 200 and 350 therein) and was stored in a thermostatic water bath (model: BK500, manufactured by Yamato Scientific Co., Ltd.) at 30℃ for 30 minutes or more.
Thereafter, the composition of each Example was pumped by the hand four times to form foam in an experimental plastic tray of 6 ×6 cm. The appearance of foam was observed, and evaluated on the following five-point scale. The evaluation was repeated twice.
1: Uniform and fine foam.
2: One to five small bubbles (diameter: from 0.1 to 0.2 cm) are present.
3: One to five middle-sized bubbles (diameter: from 0.3 to 0.6 cm) are present.
4: One to five large bubbles (diameter: from 0.7 to 1.5 cm) are present.
5: Six or more large bubbles (diameter: from 0.7 to 1.5 cm) are present.
In the case where it was not possible to discharge foam, "N/A" was written, which means that measurement data is not available.

- Discharge property before storage (30℃)
The composition of each Example was filled into a 250 mL bottle equipped with a pump dispenser (having mesh gaps of 200 and 350 therein), and was stored in a thermostatic water bath (model: BK500, manufactured by Yamato Scientific Co., Ltd.) at 30℃ for 30 minutes or more.
Thereafter, the composition of each Example was pumped by the hand four times to form foam in an experimental plastic tray of 6 × 6 cm. The discharge property was evaluated on the following five-point scale. The evaluation was repeated twice.
1: Easy pumping (pumping can be done four times in 4 to 6 seconds).
2: Slightly easy pumping (pumping can be done four times in 7 to 9 seconds).
3: Moderate (pumping can be done four times in 7 to 9 seconds, and middle-sized bubbles (diameter: from 0.4 to 0.6 cm) are formed).
4: Slightly hard pumping (pumping can be done four times in 7 to 9 seconds, and one to five large bubbles (diameter: from 0.7 to 1.5 cm) are formed).
5: Hard pumping or clogging during discharge (pumping can be done four times in 7 to 9 seconds, and six or more large bubbles (diameter: from 0.7 to 1.5 cm) are formed and cause clogging).
In the case where it was not possible to discharge foam, "N/A" was written which means that measurement data is not available.

- Discharge property after storage for 1 week (10℃, 30℃ and 50℃)
The composition of each Example was filled into three 250 mL bottles each equipped with a pump dispenser (having mesh gaps of 200 and 350 therein), subsequently, one of the bottles was stored in an air atmosphere, one of the bottles was stored in a temperature control incubator (model: 3770, manufactured by Thermo Electron Corporation) at 10℃, and the other was stored in a temperature control incubator (model: 600, Memmert GmbH + Co. KG) at 50℃. After the storage conditions of one-week period, each Example was moved to store in a thermostatic water bath (model: BK500, manufactured by Yamato Scientific Co., Ltd.) at 30℃ for 30 minutes or more. The composition of each Example was pumped by the hand four times to form foam in an experimental plastic tray of 6 × 6 cm. The discharge property was evaluated on the following five-point scale. The evaluation was repeated twice.
1: Easy pumping (pumping can be done four times in 4 to 6 seconds).
2: Slightly easy pumping (pumping can be done four times in 7 to 9 seconds).
3: Moderate (pumping can be done four times in 7 to 9 seconds, and middle-sized bubbles (diameter: from 0.4 to 0.6 cm) are formed).
4: Slightly hard pumping (pumping can be done four times in 7 to 9 seconds, and one to five large bubbles (diameter: from 0.7 to 1.5 cm) are formed).
5: Hard pumping or clogging during discharge (pumping can be done four times in 7 to 9 seconds, and more than six large bubbles (diameter: from 0.7 to 1.5 cm) are formed and cause clogging).
In the case where it was not possible to discharge foam, "N/A" was written, which means that measurement data is not available.

Claims

A hair conditioning agent composition in a non-aerosol foamer container, comprising ingredients (A) to (C):
(A) cationic surfactant;
(B) nonionic surfactant; and
(C) cationized cellulose,
wherein the mass ratio of ingredient (C) to ingredient (B), (C)/(B) is 0.0005 or more and 0.40 or less.
The hair conditioning agent composition in a non-aerosol foamer container according to claim 1, wherein the mass ratio of ingredient (C) to ingredient (A), (C)/(A) is 0.0005 or more and 0.30 or less.
The hair conditioning agent composition in a non-aerosol foamer container according to claim 1 or 2, wherein ingredient (B) comprises an alkyl polyglucoside.
The hair conditioning agent composition in a non-aerosol foamer container according to any one of claims 1 to 3, wherein the content of ingredient (C) is 0.001 % by mass or more and 0.60 % by mass or less.
The hair conditioning agent composition in a non-aerosol foamer container according to any one of claims 1 to 4, wherein the content of ingredient (B) is 1% by mass or more and 10% by mass or less.
The hair conditioning agent composition in a non-aerosol foamer container according to any one of claims 1 to 5, wherein the total content of ingredient (A) and ingredient (B) is 2% by mass or more and 13% by mass or less.
The hair conditioning agent composition in a non-aerosol foamer container according to any one of claims 1 to 6, wherein ingredient (B) comprises a combination of two or more nonionic surfactants.
The hair conditioning agent composition in a non-aerosol foamer container according to any one of claims 1 to 7, which is applied to hair, and then washed off.