JPWO2017208541A1 - Liquid skin cleanser composition - Google Patents

Abstract

(A) at least one selected from a higher fatty acid salt containing any of laurate, myristic acid, and palmitate, (B) dimethyldiallylammonium chloride polymer, and dimethyldiallylammonium chloride-acrylic acid copolymer Containing at least one selected from a cationic polymer of a kind, (C) a higher alcohol having 12 to 22 carbon atoms, jojoba oil, olive oil, a monohydric alcohol fatty acid ester, and a hydrocarbon; A liquid skin cleanser composition wherein the mass ratio (A / B) of the content (mass%) of the fatty acid salt and the content (mass%) of the cationic polymer of the component (B) is 5 to 130 provide.

Description

  The present invention relates to a liquid skin cleanser composition.

  Conventionally, liquid skin cleanser compositions such as hand soaps and body soaps have good foam performance such as a large amount of foam and creaminess of foam, and a good skin condition after washing. It is hoped to do. In particular, recently, there has been a strong demand for providing a liquid skin cleanser composition having a high moisturizing property that can impart a moist feeling to the skin after washing.

  In order to improve the condition of the skin after washing, for example, a liquid skin cleanser composition containing a fatty acid salt and a cationic polymer having a structural unit derived from dimethyldiallylammonium chloride has been proposed (for example, (See Patent Documents 1 and 2). However, the above proposals are not satisfactory for all of the moist feeling of the skin after towel drying, the persistence of moist feeling, and the smooth feeling of the skin after towel drying. A skin cleanser composition containing a fatty acid salt, a cationic polymer, and an N-acylamino acid has been proposed (see, for example, Patent Document 3). However, in the above proposal, the amount of foam, the creaminess of the foam, the moist feeling of the skin, the persistence of the moist feeling of the skin, and the smooth feeling after towel drying were not satisfactory. Furthermore, a skin cleansing composition containing laurate, a cationic polymer, and neopentyl glycol dicaprate has been proposed (see, for example, Patent Document 4). However, the above proposal is not satisfactory in terms of the amount of foam and the creaminess of the foam.

  Therefore, a liquid skin cleanser that satisfies all of the large amount of foam and the creaminess of the foam, the moist feeling of the skin after towel drying, the persistence of the moist feeling of the skin, and the smooth feeling of the skin after towel drying It is desirable to provide a composition.

JP 2006-56802 A Japanese Patent Laying-Open No. 2015-74621 Special table 2008-530152 gazette JP 2004-262838 A

  An object of the present invention is to solve the above-described problems and achieve the following objects. That is, the present invention is a liquid skin cleanser having a large amount of foam, good creaminess of foam, moist feeling of skin after towel drying, persistence of moist feeling of skin, and smooth skin feeling after towel drying An object is to provide a composition.

  In order to solve the above-mentioned problems, the present inventors have conducted extensive studies, and as a result, (A) a higher fatty acid salt, (B) a cationic polymer, (C) a higher alcohol having 12 to 22 carbon atoms, jojoba oil, olive oil. , A liquid skin cleanser composition containing at least one selected from monohydric alcohol fatty acid esters and hydrocarbons has a large amount of foam due to the synergistic effect of each component, foam creaminess, It was found that the moist feeling of the skin, the persistence of the moist feeling of the skin, and the smooth feeling of the skin after towel drying were excellent.

The present invention is based on the above findings by the present inventors, and means for solving the above problems are as follows. That is,
<1> (A) 10% by mass to 32% by mass of a higher fatty acid salt containing all of laurate, myristic acid, and palmitate
(B) 0.2 mass% to 3 mass% of at least one cationic polymer selected from dimethyldiallylammonium chloride polymer and dimethyldiallylammonium chloride-acrylic acid copolymer,
(C) 0.05 to 3% by mass of at least one selected from higher alcohols having 12 to 22 carbon atoms, jojoba oil, olive oil, monohydric alcohol fatty acid esters, and hydrocarbons,
The molar ratio of the structural unit derived from dimethyldiallylammonium chloride in the dimethyldiallylammonium chloride-acrylic acid copolymer of the component (B) is 65 mol% or more,
The mass ratio (A / B) of the content (mass%) of the higher fatty acid salt of the component (A) and the content (mass%) of the cationic polymer of the component (B) is 5 to 130. This is a liquid skin cleanser composition.
<2> The component (C) is cetyl alcohol, behenyl alcohol, isostearyl alcohol, hexyl decanol, stearyl alcohol, jojoba oil, isostearyl isostearate, octyldodecyl myristate, hexyldecyl isostearate, isodecyl neopentanoate, isostearyl neopentanoate And the liquid skin cleansing composition according to <1>, which is at least one selected from liquid paraffin.
<3> (D) further containing a nonionic surfactant and an amphoteric surfactant,
The nonionic surfactant is a polyoxyethylene alkyl ether having 12 to 22 carbon atoms in the alkyl group and an average addition mole number of ethylene oxide of 7 to 100, and an average addition mole number of ethylene oxide of 3 to 60. Selected from polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl diisostearate with an average addition mole number of ethylene oxide of 10 to 60, and polyoxyethylene glyceryl triisostearate with an average addition mole number of ethylene oxide of 10 to 60 Any one of <1> and <2>, wherein the amphoteric surfactant is at least one selected from an amino acid amphoteric surfactant and a betaine amphoteric surfactant. A liquid skin cleanser composition.
<4> The nonionic surfactant is a polyoxyethylene alkyl ether having an alkyl group having 12 to 16 carbon atoms and an average addition mole number of ethylene oxide of 7 to 25, and an average addition mole number of ethylene oxide of 3. At least selected from polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl diisostearate in which the average addition moles of ethylene oxide are 10, and polyoxyethylene glyceryl triisostearate in which the average addition moles of ethylene oxide is 10. One type of the amphoteric surfactant is the liquid skin cleansing composition according to <3>, wherein the amphoteric surfactant is a betaine amphoteric surfactant.
<5> (E) The liquid skin cleanser composition according to any one of <1> to <4>, further including a copolymer represented by the following general formula (2).
However, in the said General formula (2), n, m, and 1 show the molar ratio (mol%) of each structural unit, It is n + m + l = 100, The said n is 0-34, The said m is 26.5. 31, and l is 35 to 70.

  According to the present invention, the above-mentioned problems can be solved and the object can be achieved, the amount of foam is large, the foam is creamy, the skin is moist after drying, and the skin is moist. It is possible to provide a liquid skin cleanser composition having good properties and a smooth skin feeling after towel drying.

(Liquid skin cleanser composition)
The liquid skin cleansing composition of the present invention comprises (A) a higher fatty acid salt, (B) a cationic polymer, (C) a higher alcohol having 12 to 22 carbon atoms, jojoba oil, olive oil, a monohydric alcohol fatty acid ester, and carbonized. It contains at least one selected from hydrogen, and preferably contains (D) a nonionic surfactant, an amphoteric surfactant, and (E) a copolymer, and further contains other components as necessary. contains.

<(A) Higher fatty acid salt>
The higher fatty acid salt of the component (A) is contained in order to improve the amount of foam and the creaminess of the foam.
The higher fatty acid salt of the component (A) contains any of laurate, myristate, and palmitate, and may contain other higher fatty acid salts such as stearate as necessary. .

Examples of the counter ion of the higher fatty acid salt of the component (A) include alkali metal ions, ammonium ions, alkanolamines, and basic amino acids.
Examples of the alkali metal ions include sodium ions and potassium ions.
Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, 2-amino-2-methylpropanol, 2-amino-2-methylpropanediol, and the like.
Examples of the basic amino acid include lysine and arginine.
Among these, potassium ions are preferable from the viewpoint of the amount of foam and creamy properties of the foam.
The higher fatty acid salt of the component (A) is not particularly limited and can be blended as a higher fatty acid salt. However, higher fatty acid and salts such as potassium hydroxide, triethanolamine, monoethanolamine, etc. , May be added separately to the compounding tank and neutralized to give a higher fatty acid salt.

  As the content of the higher fatty acid salt of the component (A), from the viewpoint of the amount of foam, the creaminess of the foam, the moist feeling of the skin after towel drying, and the persistence of the moist feeling of the skin, It is 10 mass%-32 mass% with respect to the whole quantity of a skin cleansing composition, and 20 mass%-32 mass% is preferable. When the content is less than 10% by mass, the amount of foam and the creaminess of the foam may be insufficient. When the content exceeds 32% by mass, the skin feels dry after towel drying, In addition, the persistence of the moist feeling of the skin may be insufficient.

  As content of the said laurate, 3 mass%-12 mass% are preferable with respect to the whole quantity of the said liquid skin cleaning composition, and 7 mass%-12 mass% are more preferable. As content of the said myristic acid salt, 4 mass%-14 mass% are preferable with respect to the whole quantity of the said liquid skin cleansing composition, and 8 mass%-14 mass% are more preferable. As content of the said palmitate, 1 mass%-9 mass% are preferable with respect to the whole quantity of the said liquid skin cleaning composition, and 3 mass%-9 mass% are more preferable. When the content of the laurate, the myristate, and the palmitate is out of the numerical range, the amount of foam, the creaminess of the foam, and the moist feeling of the skin after towel drying, In addition, the persistence of the moist feeling of the skin may be insufficient.

The other higher fatty acid salts are not particularly limited as long as the effects of the present invention are not impaired, and can be appropriately selected according to the purpose, but stearates are preferable.
There is no restriction | limiting in particular as content of the said stearate, Although it can select suitably according to the objective, 20 mass% or less is from the point of many foams with respect to the whole quantity of the said higher fatty acid salt. Preferably, 10 mass% or less is more preferable. The lower limit of the stearate content is preferably 0% by mass.

<(B) Cationic polymer>
The cationic polymer of the component (B) is at least one selected from a dimethyldiallylammonium chloride polymer and a dimethyldiallylammonium chloride-acrylic acid copolymer, and moisturized skin after towel drying, and skin It is contained to improve the persistence of moist feeling.

Of the components (B), the dimethyldiallylammonium chloride-acrylic acid copolymer is represented by the following general formula (1).
However, in the said General formula (1), n and m show the molar ratio of each structural unit, it is n + m = 100, and the said m is 65 mol% or more.

  The molar ratio of the structural unit derived from dimethyldiallylammonium chloride in the dimethyldiallylammonium chloride-acrylic acid copolymer in the component (B) is the persistence of the moist feeling of the skin after towel drying and the moist feeling of the skin. From this point, it is 65 mol% or more, and 95 mol% is preferable. When the molar ratio is less than 65 mol%, the moist feeling of the skin after towel drying and the persistence of the moist feeling of the skin may be insufficient.

The molar ratio of the structural unit in the dimethyldiallylammonium chloride-acrylic acid copolymer in the component (B) can be determined by measurement under the following measurement conditions by nuclear magnetic resonance (NMR).
[Measurement condition]
Solvent: heavy water (D ₂ O)
Measuring instrument: JNM-LA300 (300 MHz, manufactured by JEOL Ltd.)

There is no restriction | limiting in particular as a weight average molecular weight of the cationic polymer of the said (B) component, Although it can select suitably according to the objective, The moist feeling of the skin after towel drying and the persistence of the moist feeling of the skin From the point of 10,000, 10,000-1,000,000 are preferable and 15,000-450,000 are more preferable.
The weight average molecular weight of the cationic polymer of the component (B) is, for example, SEC-MALLS-RI system (measurement condition: column: TSKgel α series α-M column 30 cm manufactured by Tosoh Corporation, solvent: 0.3 M aqueous solution of sodium nitrate) Can be measured.

The viscosity at 25 ° C. of the copolymer solution having a solid content of 30% by mass to 44% by mass in the cationic polymer of the component (B) is the persistence of the moist feeling of the skin after towel drying and the moist feeling of the skin. From the point, 10 mPa · s to 15,000 mPa · s is preferable, and 20 mPa · s to 12,000 mPa · s is more preferable.
The viscosity can be measured, for example, using a Brookfield viscometer LVF (manufactured by Brookfield).

As the cationic polymer of the component (B), those appropriately synthesized may be used, or commercially available products may be used. Examples of the commercially available products include the following.
Marcote 100 (component name: dimethyldiallylammonium chloride polymer, manufactured by Lubrizol Corporation, solid content 39 mass% to 44 mass%, viscosity at 25 ° C .: 8,000 mPa · s to 12,000 mPa · s, weight average molecular weight: 150,000). The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. Three rotors can be used and the measurement can be performed at a condition of 6 revolutions / minute.

  Marcoat 106 (component name: dimethyldiallylammonium chloride polymer, manufactured by Lubrizol Corporation, solid content of 30% to 36% by weight, viscosity at 25 ° C .: 20 mPa · s to 65 mPa · s, weight average molecular weight: 15,000) . The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. One rotor can be used and measurement can be performed at a condition of 60 revolutions / minute.

  Marquat 295 (component name: dimethyldiallylammonium chloride-acrylic acid copolymer, manufactured by Lubrizol Corporation, solid content 35 mass% to 40 mass%, viscosity at 25 ° C .: 3,500 mPa · s to 9,000 mPa · s, Weight average molecular weight: 190,000, n: m = 5: 95 (molar ratio) in the general formula (1), and the molar ratio of structural units derived from dimethyldiallylammonium chloride is 95 mol%. The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. Measurement can be performed at a condition of 30 revolutions / minute using four rotors.

  Marquat 280 (component name: dimethyldiallylammonium chloride-acrylic acid copolymer, manufactured by Lubrizol Corporation, viscosity at 25 ° C. with a solid content of 39 mass% to 43 mass%: 3,000 mPa · s to 6,000 mPa · s, Weight average molecular weight: 450,000, n: m in the general formula (1) = 35: 65 (molar ratio), and the molar ratio of structural units derived from dimethyldiallylammonium chloride is 65 mol%). The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. Measurement can be performed at a condition of 60 revolutions / minute using four rotors.

  Among these, from the viewpoint of the moist feeling of the skin after towel drying and the persistence of the moist feeling of the skin, as the cationic polymer of the component (B), Marcoat 100, Marcoat 106, and Marcoat 295 are preferable. Is more preferable.

  As the content of the cationic polymer of the component (B), the liquid skin cleanser composition from the viewpoint of a large amount of foam, a moist feeling of the skin after towel drying, and a persistence of the moist feeling of the skin It is 0.2 mass%-3 mass% with respect to the whole quantity of 0.3 mass%-1 mass%. When the content is less than 0.2% by mass, the moist feeling of the skin after towel drying and the persistence of the moist feeling of the skin may be insufficient. When the content exceeds 3% by mass, A large amount may be insufficient.

[Mass ratio (A / B)]
The mass ratio (A / B) between the content (mass%) of the higher fatty acid salt of the component (A) and the content (mass%) of the cationic polymer of the component (B) is the amount of foam. It is 5-130 from the point of many, the moist feeling of the skin after towel drying, and the persistence of the moist feeling of skin, and 20-85 are preferable. If the mass ratio is less than 5, the amount of foam may be insufficient, and if it exceeds 130, the moist feeling of the skin after towel drying and the sustainability of the moist feeling of the skin are insufficient. It may become.

<(C) At least one selected from higher alcohol, jojoba oil, olive oil, monohydric alcohol fatty acid ester, and hydrocarbon>
The component (C) is at least one selected from higher alcohols having 12 to 22 carbon atoms, jojoba oil, olive oil, monohydric alcohol fatty acid esters, and hydrocarbons. It is contained in order to improve the persistence of the moist feeling and the smooth feeling of the skin after towel drying.

As carbon number of the said higher alcohol, it is 12-22, and 16-20 are preferable.
Examples of the higher alcohol include cetyl alcohol, behenyl alcohol, isostearyl alcohol, hexyl decanol, stearyl alcohol and the like. These may be used individually by 1 type and may use 2 or more types together. Among these, behenyl alcohol is preferable from the viewpoint of the moist feeling of the skin after towel drying, the persistence of the moist feeling of the skin, and the smooth feeling of the skin after towel drying.

  Examples of the monohydric alcohol fatty acid ester include isostearyl laurate, hexyl laurate, methyl myristate, ethyl myristate, butyl myristate, cetyl myristate, myristyl myristate, isopropyl myristate, isostearyl myristate, myristine. Isocetyl acid, isotridecyl myristate, octyldodecyl myristate, decyl myristate, butyl myristate, isobutyl myristate, methyl palmitate, ethyl palmitate, isopropyl palmitate, isostearyl palmitate, cetyl palmitate, butyl palmitate, palmitate Isobutyl acid, octyl palmitate, octyl isopalmitate, ethyl stearate, butyl stearate, batyl stearate, Stearate, stearyl, octyl stearate, isocetyl stearate, isopropyl isostearate, ethyl oleate, decyl oleate, oleyl oleate, octyldodecyl oleate, ethyl linoleate, and the like linoleic acid isopropyl. These may be used individually by 1 type and may use 2 or more types together. Among these, isostearyl isostearate, octyldodecyl myristate, hexyldecyl isostearate, neopentane isostearic acid from the viewpoint of moisturized skin after towel drying, persistence of moisturized skin, and smooth skin feeling after towel drying Isodecyl acid and isostearyl neopentanoate are preferable, and octyldodecyl myristate is more preferable.

Examples of the hydrocarbon include liquid paraffin.
As the liquid paraffin, liquid paraffin which is liquid at 40 ° C. is preferable.
The kinematic viscosity of the liquid paraffin that is liquid at 40 ° C. is not particularly limited and may be appropriately selected depending on the intended purpose. However, the moist feeling of the skin after towel drying, the persistence of the moist feeling of the skin, and In light of the smooth feeling of the skin after towel drying, at 40 ° C., 12.8 mm ² s ^{−1 to} 70 mm ² s ⁻¹ is preferable, and 18.5 mm ² s ^{−1 to} 70 mm ² s ⁻¹ is more preferable.
As said liquid paraffin, what was synthesize | combined suitably may be used and a commercial item may be used. The commercially available product, trade name: 80-S (kinematic viscosity ^{12.8mm 2 s -1 ~14.8mm 2 s -1} ), product name: 90-S (kinematic viscosity 14.4 mm ² s ^-1 ~ 16 .4 mm ² s ⁻¹ ), trade name: 100-S (kinematic viscosity 16.0 mm ² s ^{−1 to} 20.0 mm ² s ⁻¹ ), trade name: 120-S (kinematic viscosity 18.5 mm ² s ^−1). ˜22.5 mm ² s ⁻¹ ), trade name: 150-S (kinematic viscosity 23.4 mm ² s ⁻¹ ˜27.4 mm ² s ⁻¹ ), trade name: 260-S (kinematic viscosity 46.0 mm ² s) ^{-1 to} 52.0 mm ² s ^-1 ), trade name: 350-S (dynamic viscosity 64.0 mm ² s ^{-1 to} 70.0 mm ² s ^-1 ) (manufactured by Sanko Chemical Industries, Ltd.) It is done. These may be used individually by 1 type and may use 2 or more types together. Among these, a brand name: 120-S, a brand name: 150-S, a brand name: 260-S, and a brand name: 350-S are preferable, and a brand name: 350-S is more preferable.

  Among these, as the component (C), behenyl alcohol, jojoba oil, octyldodecyl myristate, and liquid paraffin (trade name: 350-S) are preferable.

  As the content of the component (C), the amount of foam, creaminess of foam, moist feeling of skin after towel drying, persistence of moist feeling of skin, and smooth feeling of skin after towel drying From the point, it is 0.05 mass%-3 mass% with respect to the whole quantity of the said liquid skin cleaning composition, 0.2 mass%-1 mass% are preferable. When the content is less than 0.05% by mass, the moist feeling of the skin after towel drying, the persistence of the moist feeling of the skin, and the smooth feeling of the skin after towel drying may be insufficient. If it exceeds 3% by mass, the amount of foam and the creaminess of the foam may be insufficient.

  The component (C) is superior to the cationic polymer of the component (B) for the effect of improving the moist feeling of the skin after towel drying and the durability of the moist feeling of the skin.

<(D) Surfactant>
The surfactant as the component (D) is contained in order to improve storage stability.
The surfactant of the component (D) preferably contains a nonionic surfactant and an amphoteric surfactant.

Examples of the nonionic surfactant include polyoxyethylene alkyl ethers having an alkyl group having 12 to 22 carbon atoms and an average addition mole number of ethylene oxide of 7 to 100, and an average addition mole number of ethylene oxide of 3 to 3. 60 polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl diisostearate with an average addition mole number of ethylene oxide of 10 to 60, and polyoxyethylene triisostearate with an average addition mole number of ethylene oxide of 10 to 60 It is preferably at least one selected from glyceryl.
As carbon number of the alkyl group in the said polyoxyethylene alkyl ether, 12-22 are preferable from the point of storage stability, and 12-16 are more preferable.
The average added mole number of ethylene oxide in the polyoxyethylene alkyl ether is preferably 7 to 100, more preferably 7 to 25, from the viewpoint of storage stability.
The average added mole number of ethylene oxide in the polyoxyethylene glyceryl isostearate is preferably 3 to 60, more preferably 3 from the viewpoint of storage stability.
The average number of moles of ethylene oxide added in the polyisoethylene glyceryl diisostearate is preferably 10 to 60 and more preferably 10 from the viewpoint of storage stability.
The average added mole number of ethylene oxide in the polyoxyethylene glyceryl triisostearate is preferably 10 to 60 and more preferably 10 from the viewpoint of storage stability.

  Among these, as the nonionic surfactant, polyoxyethylene alkyl ether having an alkyl group having 12 to 16 carbon atoms and an average addition mole number of ethylene oxide of 7 to 25, and an average addition mole number of ethylene oxide. 3 selected from polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl diisostearate with an average addition mole number of ethylene oxide of 10, and polyoxyethylene glyceryl triisostearate with an average addition mole number of ethylene oxide of 10. More preferably, it is at least one kind.

  As content of the said nonionic surfactant, 0.1 mass%-2 mass% with respect to the whole quantity of the said liquid skin cleaning composition from the point of storage stability and the quantity of the foam. Preferably, 0.3 mass%-1 mass% are more preferable. When the content is less than 0.1% by mass, the storage stability may be insufficient, and when it exceeds 2% by mass, the amount of foam may be insufficient.

The amphoteric surfactant is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include amino acid amphoteric surfactants and betaine amphoteric surfactants. These may be used individually by 1 type and may use 2 or more types together. Among these, betaine amphoteric surfactants are preferable.
There is no restriction | limiting in particular as said amino acid type | system | group amphoteric surfactant, According to the objective, it can select suitably, For example, (beta) sodium lauryl amino propionate etc. are mentioned.
The betaine amphoteric surfactant is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include lauryldimethylaminoacetic acid betaine, lauric acid amidopropyl hydroxysulfobetaine, and myristic acid amidopropyl betaine. It is done. Among these, lauryldimethylaminoacetic acid betaine is preferable in terms of storage stability.

  The content of the amphoteric surfactant is preferably 0.5% by mass to 5% by mass with respect to the total amount of the liquid skin cleanser composition, from the viewpoint of foam creaminess and storage stability, More preferably, it is 8 mass%-3 mass%. When the content is less than 0.5% by mass, the storage stability may be insufficient, and when it exceeds 5% by mass, the creamy property of the foam may be insufficient.

<(E) Copolymer>
The copolymer of the component (E) is contained in order to improve the smoothness of the skin during rinsing. As the copolymer of the component (E), a copolymer represented by the following general formula (2) is used.
However, in the said General formula (2), n, m, and 1 show the molar ratio (mol%) of each structural unit, and is n + m + 1 = 100.
The n is preferably 0 to 34, the m is preferably 26.5 to 31, and the l is preferably 35 to 70.
Among these, n: m: l = (0:30:70) in the general formula (2) is preferable from the viewpoint of smoothness of the skin at the time of rinsing.

The molar ratio of each structural unit in the copolymer of the component (E) can be determined by measuring under the following measurement conditions by nuclear magnetic resonance (NMR).
[Measurement condition]
Solvent: heavy water (D ₂ O)
Measuring instrument: JNM-LA300 (300 MHz, manufactured by JEOL Ltd.)

  There is no restriction | limiting in particular as a weight average molecular weight of the copolymer of the said (E) component, Although it can select suitably according to the objective, 100,000-3,000,000 are preferable, 150,000-1 600,000 is more preferable. The weight average molecular weight of the copolymer of the component (E) is, for example, SEC-MALLS-RI system (measurement condition: column: TSKgel α series α-M column 30 cm, manufactured by Tosoh Corporation, solvent: sodium nitrate 0.3 M aqueous solution). Can be measured.

The viscosity at 25 ° C. of the copolymer solution having a solid content of 8% by mass to 45% by mass in the copolymer of the component (E) is not particularly limited and may be appropriately selected depending on the purpose. 1,500 mPa · s to 16,000 mPa · s, and more preferably 7,500 mPa · s to 15,000 mPa · s.
Among these, the viscosity of the component (E) is preferably 7,500 mPa · s to 15,000 mPa · s.
The viscosity can be measured, for example, using a Brookfield viscometer LVF (manufactured by Brookfield).

As the copolymer of the component (E), an appropriately synthesized product or a commercially available product may be used. Examples of the commercially available products include the following.
Marquat 550PR (component name: dimethylallyl ammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content of 8.8% by mass to 9.8% by mass, viscosity at 25 ° C .: 7,500 mPa · s to 15,000 mPa S, weight average molecular weight: 1,600,000, n: m: l = 0 in the general formula (2) = 0: 30: 70). The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. Measurement can be performed under the condition of 10 revolutions / minute using 4 rotors.

  Marquat 3330PR (component name: acrylic acid-dimethyldiallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content of 10.2% by mass to 11.5% by mass at 25 ° C .: 1,000 mPa · s— 6,000 mPa · s, weight average molecular weight: 1,500,000, n: m: l in the general formula (2) = 34: 31: 35). The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. Measurement can be performed under the condition of 30 revolutions / minute using 4 rotors.

  Marquat 3331PR (component name: acrylic acid-dimethyldiallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content 9.7% by mass to 10.7% by mass, viscosity at 25 ° C .: 2,000 mPa · s˜ 12,000 mPa · s, weight average molecular weight: 1,600,000, n: m: l = 22.5: 26.5: 51 in the general formula (2). The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. Measurement can be performed at a condition of 30 revolutions / minute using 5 rotors.

  Marcote 3940 (component name: acrylic acid-dimethyldiallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content 41 mass% to 45 mass%, viscosity at 25 ° C .: 1,500 mPa · s to 4,500 mPa · s, weight average molecular weight: 150,000, n: m: l in the general formula (2) = 31: 29: 40). The viscosity was measured using a Brookfield viscometer LVF (manufactured by Brookfield) at 25 ° C. with spindle no. 3 rotors can be used, and measurement can be performed under conditions of 10 revolutions / minute.

  Among these, as the copolymer of the component (E), Marcoat 550PR is preferable from the viewpoint of smooth skin during rinsing.

  The content of the copolymer of the component (E) is 0.2 with respect to the total amount of the liquid skin cleanser composition from the viewpoint of the amount of foam and the smoothness of the skin during rinsing. % By mass to 3% by mass is preferable, and 0.4% by mass to 2% by mass is more preferable. When the content is less than 0.2% by mass, the smoothness of the skin at the time of rinsing may be insufficient, and when it exceeds 3% by mass, the amount of foam becomes insufficient. There is.

<Other ingredients>
In addition to the components (A) to (E) described above, the liquid skin cleanser composition of the present invention may contain other components as necessary within a range not impairing the effects of the present invention. it can.
Examples of the other components include purified water, a cationic polymer other than the component (B), and a water-soluble polymer other than the copolymer of the component (E), almond oil, rice bran oil, rice germ oil, sesame oil. Oils other than the component (C) such as safflower oil, soybean oil, rapeseed oil, castor oil, palm oil, lower alcohols, alcohols such as higher alcohols other than the component (C), lanolin derivatives, protein derivatives, Acrylic resin dispersion, drugs such as vitamins, bactericides, preservatives, pH adjusters, viscosity adjusters, antioxidants, sequestering agents, UV absorbers, animal and plant extracts or their derivatives, dyes, fragrances, pigments, inorganic Examples thereof include powders, clay minerals; water-insoluble polymer powders such as nylon and polyethylene. These may be used alone or in combination of two or more.

-Manufacturing method-
There is no restriction | limiting in particular as a manufacturing method of the liquid skin cleansing composition of this invention, According to the objective, it can select suitably, Said (A)-(C) component, As needed, said (D) The component (E), the other components, and the purified water (remaining amount blended so that the entire liquid skin cleanser composition is 100% by mass) can be obtained by mixing.
Specifically, it can be produced as follows. The higher fatty acid salt of the component (A) and the oil component of the component (C) are dissolved in purified water heated to 70 ° C. to 80 ° C., cooled to 40 ° C. or lower, and then the cation of the component (B). It can be produced by adding a functional polymer, a surfactant of the component (D) and a copolymer of the component (E) as necessary.
The liquid skin cleanser composition may be prepared using a device. There is no restriction | limiting in particular as said apparatus, According to the objective, it can select suitably, For example, there exists a shearing force and the stirring apparatus provided with the stirring blade which can mix the whole etc. are mentioned.
There is no restriction | limiting in particular as said stirring blade, According to the objective, it can select suitably, For example, a propeller, a turbine, a disper, etc. are mentioned.

-PH-
The pH of the liquid skin cleansing composition at 25 ° C. is preferably 9.5 to 11.0, and more preferably 9.8 to 10.6, from the viewpoint of the amount of foam. When the pH value is in the numerical range, the amount of foam is good and there is no skin irritation.
The pH can be measured using, for example, a pH meter (HM-30R, manufactured by TOA DKK).

-Viscosity-
There is no restriction | limiting in particular as a viscosity in 25 degreeC of the said liquid skin cleaning composition, Although it can select suitably according to the objective, 1 mPa * s-6,000 mPa * s are preferable, 50 mPa * s-4, 000 mPa · s is more preferable.
The viscosity can be measured, for example, using a BM viscometer (manufactured by Tokyo Keiki Co., Ltd.) at a sample temperature of 25 ° C. under the following conditions. When the viscosity is 1 mPa · s to 3,000 mPa · s, a BM adapter, a rotation speed of 30 rpm, No. When the viscosity after 1 minute was measured using a rotor No. 3 and exceeded 3,000 mPa · s, a BM adapter, a rotation speed of 30 rpm, No. 3 was used. It can be measured by measuring the viscosity after 1 minute with a rotor of 4.

-Container-
The liquid skin cleansing composition of the present invention is not particularly limited, and is used by filling a normal container.
There is no restriction | limiting in particular as said container, According to the objective, it can select suitably, For example, a pump dispenser container, a tube, a former container, a bag-like container, etc. are mentioned. Among these, a pump dispenser container is preferable. Examples of the pump dispenser container include a pump dispenser container having a nozzle diameter (inner diameter) of 3.5 mm and a discharge amount of 3 mL manufactured by Yoshino Kogyo Co., Ltd.

-Use-
The liquid skin cleanser composition of the present invention has a large amount of foam, good creaminess of the foam, moist feeling of the skin after towel drying, long-lasting moist feeling of the skin, and smooth skin feeling after towel drying Therefore, it is used for, for example, face wash, hand soap, body soap, cleansing foam, makeup remover, etc., and particularly suitable for body soap.

  Hereinafter, the present invention will be described more specifically based on examples and comparative examples, but the present invention is not limited to the following examples. In addition, all the content of each component of description of an Example and a comparative example is the value converted into a pure part.

(Examples 1-27 and Comparative Examples 1-12)
Liquid skin cleansing compositions having the compositions and contents shown in Tables 1 to 7 below were prepared by a conventional method. Specifically, it was prepared by the following method.
Purified water in an amount of 95% by mass with respect to the total amount of the liquid skin cleanser composition finally obtained is heated to 70 ° C. to 80 ° C., and the higher fatty acid salt of component (A) and component (C) After dissolving the oil and cooling to 40 ° C. or lower, a liquid skin cleansing composition was prepared by adding the cationic polymer of component (B). After that, when the pH is less than the predetermined pH, the common component potassium hydroxide is added, adjusted to the predetermined pH, purified water is added so that the total amount becomes 100% by mass, and the intended liquid skin A cleaning composition was obtained. Moreover, a propeller was used as a stirring blade, and stirring was performed using a three-one motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.). The pH was measured at 25 ° C. using a pH meter (HM-30R, manufactured by TOA DKK).
The obtained liquid skin cleansing compositions of Examples 1 to 27 and Comparative Examples 1 to 12 were placed in a container with a pump dispenser [discharge amount 3 mL, nozzle diameter (inner diameter) 3.5 mm, manufactured by Yoshino Kogyo Co., Ltd.]. Filled.

  Next, for each of the obtained liquid skin cleansing compositions, “the amount of foam”, “the creaminess of foam”, “the moist feeling of the skin after towel drying”, “the skin” The “sustainability of moist feeling” and “smooth skin feeling after towel drying” were evaluated. The results are shown in Tables 1 to 7 below.

<The amount of foam, creamy nature of foam>
Ten expert evaluators wet the 40 ° C warm water and lightly damp nylon towel 2 pushes (about 6g) of the liquid skin cleansing compositions of Examples 1-27 and Comparative Examples 1-12. Then, when the nylon towel was rubbed 10 times and foamed, the amount of foam and the creaminess of the foam were observed and evaluated according to the following evaluation criteria. As a result, an average evaluation score of the 10 expert evaluators was obtained, and “a large amount of foam” and “a creamy property of foam” were evaluated. In addition, if the average evaluation score is 3.0 points or more, the “large amount of foam” and the “creamy property of foam” are good.
-Evaluation criteria for "large amount of foam"-
5 points: Foam overflows from nylon towel 4 points: 70% to 100% of nylon towel is covered with foam 3 points: 50% to less than 70% of nylon towel is covered with foam 2 points: Nylon 20% or more and less than 50% of towels are covered with foam 1 point: Less than 20% of nylon towels are covered with foam or almost no foam-Evaluation criteria for "creamy property of foam"-
5 points: Most bubbles are fine bubbles and very creamy 4 points: Large bubbles are mixed in a part of fine bubbles, but creamy 3 points: Large bubbles are half in fine bubbles 2 points: Larger and more rough bubbles than fine bubbles, not creamy 1 point: Only large and coarse bubbles stand, not at all creamy

<Moist skin after towel drying, smooth skin after towel drying>
Ten expert evaluators wet the 40 ° C warm water and lightly damp nylon towel 2 pushes (about 6g) of the liquid skin cleansing compositions of Examples 1-27 and Comparative Examples 1-12. After rubbed 10 times and foamed, the whole body was rubbed with the nylon towel, the liquid skin cleansing composition was rinsed with warm water at 40 ° C., and the water droplets were wiped off with a towel. Immediately after wiping off the water droplets, “moist skin feeling after towel drying” and “smooth skin feeling after towel drying” were evaluated according to the following evaluation criteria.
As a result, the average evaluation score of the 10 professional evaluators was obtained, and “the moist feeling of the skin after towel drying” and “the smooth feeling of the skin after towel drying” were evaluated. In addition, if the average evaluation score is 3.0 points or more, the “moist skin feeling after towel drying” and the “smooth skin feeling after towel drying” are good.
-Evaluation criteria for "moist skin feeling after towel drying"-
5 points: feels moist strongly 4 points: feels moist 3 points: feels moist a little 2 points: feels less moist 1 point: feels moist at all-“smooth skin after towel drying” Evaluation criteria for "feel"-
5 points: A strong feeling of smoothness 4 points: A feeling of smoothness 3 points: A slight feeling of smoothness 2 points: A little feeling of smoothness 1 point: A feeling of smoothness is not felt at all

<Durability of moist skin>
Ten expert evaluators wet the 40 ° C warm water and lightly damp nylon towel 2 pushes (about 6g) of the liquid skin cleansing compositions of Examples 1-27 and Comparative Examples 1-12. After rubbed 10 times and foamed, the whole body was rubbed with the nylon towel, the liquid skin cleansing composition was rinsed with warm water at 40 ° C., and the water droplets were wiped off with a towel.
Thereafter, the sample was rested for 3 hours in a room at 25 ° C. and 40% RH, and “sustainability of moist skin” after 3 hours was evaluated according to the following evaluation criteria. In addition, if the average evaluation score is 3.0 points or more, the “sustainability of the moist feeling of the skin” is good.
-Evaluation criteria for "sustainability of moist skin"-
5 points: feels moist strongly 4 points: feels moist 3 points: feels moist a little 2 points: feels less moist 1 point: does not feel moist at all

(Examples 28 to 37, Comparative Example 13)
Liquid skin cleansing compositions having the compositions and contents shown in Tables 8 and 9 below were prepared by a conventional method. Specifically, it was prepared by the following method.
Purified water in an amount of 95% by mass with respect to the total amount of the liquid skin cleanser composition finally obtained is heated to 70 ° C. to 80 ° C., and the higher fatty acid salt of component (A) and component (C) After dissolving the oil and cooling to 40 ° C. or lower, a liquid skin cleansing composition was prepared by adding the cationic polymer of component (B) and the surfactant of component (D). After that, when the pH is less than the predetermined pH, the common component potassium hydroxide is added, adjusted to the predetermined pH, purified water is added so that the total amount becomes 100% by mass, and the intended liquid skin A cleaning composition was obtained. Moreover, a propeller was used as a stirring blade, and stirring was performed using a three-one motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.). The pH was measured at 25 ° C. using a pH meter (HM-30R, manufactured by TOA DKK).
The obtained liquid skin cleansing compositions of Examples 28 to 37 and Comparative Example 13 were filled in a container with a pump dispenser [discharge amount 3 mL, nozzle diameter (inner diameter) 3.5 mm, manufactured by Yoshino Kogyo Co., Ltd.]. did.

  Next, for each of the obtained liquid skin cleansing compositions, in the same manner as in Example 1, “the amount of foam”, “the creaminess of the foam”, “the moist feeling of the skin after towel drying”, “Sustainability of moist skin” and “smooth skin feeling after towel drying” were evaluated. In addition to the above evaluation, “storage stability” was evaluated as follows. The results are shown in Tables 8 and 9 below.

<Storage stability>
50 mL of each liquid skin cleanser composition of Examples 28 to 37 and Comparative Example 13 was placed in a 50 mL transparent glass bottle (SV-50A, manufactured by Nidec Rika Glass Co., Ltd.), and the lid of the glass bottle was closed and sealed. And stored at 40 ° C. for 28 days (4 weeks). After storage, one expert evaluator observed the liquid skin cleanser composition and evaluated “storage stability” according to the following evaluation criteria. In addition, if the average evaluation score is “◯” or more, “storage stability” is good.
-Evaluation criteria-
◎: Not clouded or separated ○: Slightly clouded, but not separated or precipitated △: Small amount of separated or clouded, even when shaken in a glass bottle ×: Not completely dissolved Separated

(Examples 38 to 42 and Comparative Example 14)
A liquid skin cleanser composition having the composition and content shown in Table 10 below was prepared by a conventional method. Specifically, it was prepared by the following method.
Purified water in an amount of 95% by mass with respect to the total amount of the liquid skin cleanser composition finally obtained is heated to 70 ° C. to 80 ° C., and the higher fatty acid salt of component (A) and component (C) After dissolving the oil and cooling to 40 ° C. or lower, a liquid skin cleansing composition was prepared by adding the cationic polymer of component (B) and the copolymer of component (E). After that, when the pH is less than the predetermined pH, the common component potassium hydroxide is added, adjusted to the predetermined pH, purified water is added so that the total amount becomes 100% by mass, and the intended liquid skin A cleaning composition was obtained. Moreover, a propeller was used as a stirring blade, and stirring was performed using a three-one motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.). The pH was measured at 25 ° C. using a pH meter (HM-30R, manufactured by TOA DKK).
The obtained liquid skin cleansing compositions of Examples 38 to 42 and Comparative Example 14 were filled in a container with a pump dispenser [discharge amount 3 mL, nozzle diameter (inner diameter) 3.5 mm, manufactured by Yoshino Kogyo Co., Ltd.]. did.

  Next, for each of the obtained liquid skin cleansing compositions, in the same manner as in Example 1, “the amount of foam”, “the creaminess of the foam”, “the moist feeling of the skin after towel drying”, “Sustainability of moist skin” and “smooth skin feeling after towel drying” were evaluated. In addition to the above evaluation, “smoothness of the skin during rinsing” was evaluated as follows. The results are shown in Table 10 below.

<Smoothness of skin when rinsing>
Ten expert evaluators took 2 pushes (about 6 g) of the liquid skin cleansing compositions of Examples 38 to 42 and Comparative Example 14 in a nylon towel wetted with warm water of 40 ° C. and lightly dampened. Nylon towel was rubbed 10 times and foamed to wash the whole body. The smoothness of the skin when rinsed was evaluated according to the following evaluation criteria. As a result, an average evaluation score of 10 professional evaluators was obtained, and “smoothness of the skin during rinsing” was evaluated. In addition, if the average evaluation score is 3.0 points or more, the “smoothness of the skin at the time of rinsing” is good.
-Evaluation criteria for "skin smoothness during rinsing"-
5 points: I feel the smoothness at the time of rinsing 4 points: I feel the smoothness at the time of rinsing 3 points: I feel a little smoothness at the time of rinsing 2 points: I do not feel the smoothness at the time of rinsing 1 point: At the time of rinsing I do not feel smooth at all

(Examples 43 to 44)
A liquid skin cleanser composition having the composition and content shown in Table 11 below was prepared by a conventional method. Specifically, it was prepared by the following method.
Purified water in an amount of 95% by mass with respect to the total amount of the liquid skin cleanser composition finally obtained is heated to 70 ° C. to 80 ° C., and the higher fatty acid salt of component (A) and component (C) Liquid skin cleansing composition by dissolving the oil and cooling to 40 ° C. or lower, and then adding the cationic polymer (D) component surfactant and the (E) component copolymer. A product was prepared. After that, when the pH is less than the predetermined pH, the common component potassium hydroxide is added, adjusted to the predetermined pH, purified water is added so that the total amount becomes 100% by mass, and the intended liquid skin A cleaning composition was obtained. Moreover, a propeller was used as a stirring blade, and stirring was performed using a three-one motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.). The pH was measured at 25 ° C. using a pH meter (HM-30R, manufactured by TOA DKK).
The obtained liquid skin cleansing compositions of Examples 43 to 44 were filled in a container with a pump dispenser [discharge amount 3 mL, nozzle diameter (inner diameter) 3.5 mm, manufactured by Yoshino Kogyo Co., Ltd.].

  Next, for each of the obtained liquid skin cleansing compositions, in the same manner as in Example 1, “the amount of foam”, “the creaminess of the foam”, “the moist feeling of the skin after towel drying”, “Sustainability of skin moist feeling” and “Smooth skin feeling after towel drying” were set in the same manner as in Example 28, “Storage stability” was set in the same manner as in Example 38, and “Rinning skin washes” “Smoothness” was evaluated. The results are shown in Table 11 below.

(Example 45)
A liquid skin cleanser composition having the composition and content shown in Table 12 below was prepared by a conventional method. Specifically, it was prepared by the following method.
Purified water in an amount of 95% by mass with respect to the total amount of the liquid skin cleansing composition finally obtained is heated to 70 ° C. to 80 ° C., and (A) higher fatty acid salt and (C) oil content. , And other components (excluding phenoxyethanol, fragrance, potassium hydroxide, and purified water) and cooled to 40 ° C. or lower, then (B) a cationic polymer, (D) a surfactant, A liquid skin cleanser composition was prepared by adding a copolymer of component (E), phenoxyethanol, and a fragrance. After that, when the pH is less than the predetermined pH, the common component potassium hydroxide is added, adjusted to the predetermined pH, purified water is added so that the total amount becomes 100% by mass, and the intended liquid skin A cleaning composition was obtained. Moreover, a propeller was used as a stirring blade, and stirring was performed using a three-one motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.). The pH was measured at 25 ° C. using a pH meter (HM-30R, manufactured by TOA DKK).
Each liquid skin cleansing composition obtained in Example 45 was filled in a container with a pump dispenser [discharge amount: 3 mL, nozzle diameter (inner diameter): 3.5 mm, manufactured by Yoshino Kogyo Co., Ltd.].

  Next, in the same manner as in Example 1, the obtained liquid skin cleansing composition of Example 45 was “a large amount of foam”, “foam creaminess”, “moisturizing skin after towel drying” “Sensitivity”, “Durability of moist skin”, and “Smooth skin feeling after towel drying” were set in the same manner as in Example 28, while “Storage stability” was set in the same manner as in Example 38. The smoothness of the skin was evaluated. The results are shown in Table 12 below.

The details of the other components used in Example 45 are as follows.
・ Monoethanolamine (Nippon Shokubai Co., Ltd.)
・ Propylene glycol (Propylene glycol for cosmetics, ADEKA Corporation)
・ Phenoxyethanol (New Pole EFP, Sanyo Chemical Industries, Ltd.)
・ Methacrylic acid-ethyl acrylate-butyl acrylate copolymer (Leoar MS-200)
・ Ethylenediaminetetraacetic acid (Disolvin Z, manufactured by Lion Specialty Chemicals Co., Ltd.)
Perfume: Perfume having the composition shown in Table 13 below. Potassium hydroxide (liquid caustic potash, manufactured by Asahi Glass Co., Ltd.)

In addition, it shows in the following Table 14-Table 16 about the detail of the various components used by the said Example and the said comparative example.
* 1: Potassium laurate is 100% neutralized lauric acid (NAA-122, manufactured by NOF Corporation) using potassium hydroxide (liquid caustic potash, manufactured by Asahi Glass Co., Ltd.).
* 2: Potassium myristate is 100% neutralized myristic acid (NAA-142, manufactured by NOF Corporation) using potassium hydroxide (liquid caustic potash, manufactured by Asahi Glass Co., Ltd.).
* 3: Potassium palmitate is obtained by neutralizing palmitic acid (NAA-160, manufactured by NOF Corporation) with potassium hydroxide (liquid caustic potash, manufactured by Asahi Glass Co., Ltd.) 100%.
* 4: Potassium stearate is 100% neutralized stearic acid (NAA-180, manufactured by NOF Corporation) using potassium hydroxide (liquid caustic potash, manufactured by Asahi Glass Co., Ltd.).
Cationized cellulose is a polymer having a structural unit derived from glucose.

-(B) component-
* 1: Brookfield viscometer LVF (Brookfield), spindle no. 3, 6 rotations / minute, 25 ° C
* 2: Brookfield viscometer LVF (manufactured by Brookfield), spindle no. 4, 30 rotations / minute, 25 ° C
* 3: Brookfield viscometer LVF (manufactured by Brookfield), spindle no. 4, 60 rotations / minute, 25 ° C

-(E) component-
* 1: Brookfield viscometer LVF (Brookfield), spindle no. 4, 10 rotations / minute, 25 ° C
* 2: Brookfield viscometer LVF (manufactured by Brookfield), spindle no. 4, 30 rotations / minute, 25 ° C

  The liquid skin cleanser composition of the present invention has a large amount of foam, good creaminess of the foam, moist feeling of the skin after towel drying, long-lasting moist feeling of the skin, and smooth skin feeling after towel drying Therefore, it is preferably used for, for example, face wash, hand soap, body soap, cleansing foam, makeup remover, etc., and particularly preferably used for body soap.

Claims (5)

(A) 10% by mass to 32% by mass of a higher fatty acid salt containing all of laurate, myristic acid, and palmitic acid,
(B) 0.2 mass% to 3 mass% of at least one cationic polymer selected from dimethyldiallylammonium chloride polymer and dimethyldiallylammonium chloride-acrylic acid copolymer,
(C) 0.05 to 3% by mass of at least one selected from higher alcohols having 12 to 22 carbon atoms, jojoba oil, olive oil, monohydric alcohol fatty acid esters, and hydrocarbons,
The molar ratio of the structural unit derived from dimethyldiallylammonium chloride in the dimethyldiallylammonium chloride-acrylic acid copolymer of the component (B) is 65 mol% or more,
The mass ratio (A / B) of the content (mass%) of the higher fatty acid salt of the component (A) and the content (mass%) of the cationic polymer of the component (B) is 5 to 130. A liquid skin cleanser composition characterized by that.   The component (C) is cetyl alcohol, behenyl alcohol, isostearyl alcohol, hexyl decanol, stearyl alcohol, jojoba oil, isostearyl isostearate, octyldodecyl myristate, hexyldecyl isostearate, isodecyl neopentanoate, isostearyl neopentanoate, and fluid The liquid skin cleanser composition according to claim 1, which is at least one selected from paraffin. (D) further containing a nonionic surfactant and an amphoteric surfactant;
The nonionic surfactant is a polyoxyethylene alkyl ether having 12 to 22 carbon atoms in the alkyl group and an average addition mole number of ethylene oxide of 7 to 100, and an average addition mole number of ethylene oxide of 3 to 60. Selected from polyoxyethylene glyceryl isostearate, polyoxyethylene glyceryl diisostearate with an average addition mole number of ethylene oxide of 10 to 60, and polyoxyethylene glyceryl triisostearate with an average addition mole number of ethylene oxide of 10 to 60 At least one of
The liquid skin cleansing composition according to any one of claims 1 to 2, wherein the amphoteric surfactant is at least one selected from amino acid-based amphoteric surfactants and betaine-based amphoteric surfactants. The nonionic surfactant is a polyoxyethylene alkyl ether having 12 to 16 carbon atoms in the alkyl group and an average addition mole number of ethylene oxide of 7 to 25, and isostearic acid having an average addition mole number of ethylene oxide of 3 At least one selected from polyoxyethylene glyceryl, polyoxyethylene glyceryl diisostearate having an average addition mole number of ethylene oxide of 10 and polyoxyethylene glyceryl triisostearate having an average addition mole number of ethylene oxide of 10. Yes,
The liquid skin cleansing composition according to claim 3, wherein the amphoteric surfactant is a betaine amphoteric surfactant. (E) The liquid skin cleanser composition in any one of Claim 1 to 4 which further contains the copolymer represented by following General formula (2).
However, in the said General formula (2), n, m, and 1 show the molar ratio (mol%) of each structural unit, It is n + m + l = 100, The said n is 0-34, The said m is 26.5. 31, and l is 35 to 70.