JP2008137904A - Liquid skin detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a liquid skin detergent composition that makes the skin smooth after cleaning, has an excellent foaming and an excellent refreshing feeling during rinsing and high-temperature and low-temperature storage stability. <P>SOLUTION: The liquid skin detergent composition comprises (A) 2-30 mass% of a fatty acid salt, (B) 0.1-3 mass% of a nonionic water-soluble polymer compound or anionic water-soluble polymer compound and (C) 0.3-5 mass% of a water-soluble silicone compound represented by general formula (1), (2), (3) or (4). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a liquid skin cleanser composition, and more particularly, a liquid skin cleanser composition having smooth and well-foamed skin after washing, excellent refreshing feeling during rinsing, and excellent stability at high and low temperatures. It is about.

  Liquid skin cleansers such as body soaps and hand soaps are known to contain oils such as dimethyl silicone, liquid paraffin, and squalane in order to reduce the roughness after washing and give a smooth skin feel. . However, the cleaning composition containing these oils has a problem that the oils are separated over time, foaming is deteriorated, and the slickness is felt during rinsing. From the above, there has been a demand for a liquid skin cleanser composition that has smooth skin and good foaming, and has a refreshing feeling during rinsing and excellent stability at high and low temperatures. In addition, the following is mentioned as a prior art document relevant to this invention.

JP-A-2005-272658 JP 2005-314651 A JP 2003-160797 A JP 2002-193789 A JP 2001-139990 A JP-A-9-124458 JP-A-9-87671

  The present invention has been made in view of the above circumstances, and provides a liquid skin cleanser composition having smooth skin after washing, good foaming, a refreshing feeling at the time of rinsing, and excellent stability at high and low temperatures. Objective.

  As a result of intensive studies to achieve the above object, the present inventor has (B) a nonionic water-soluble polymer compound or an anionic water-soluble polymer in (A) a liquid skin cleanser composition containing a fatty acid salt. By blending a specific amount of each of the compound and (C) a specific silicone compound, the liquid after washing is smooth and has good foaming, a refreshing feeling during rinsing, and excellent storage stability at high and low temperatures The inventors have found that a skin cleansing composition can be obtained, and have made the present invention.

（式中、ｍは１〜５０、ｎは１〜５０を示す。）
下記一般式（２）で表されるカチオン変性シリコーン、

（式中、Ｒ¹は炭素数８〜２２のアルキル基又はアルケニル基を示し、ｐは１〜５０を示す。）
下記一般式（３）、（４）又は（５）で表されるポリオキシアルキレン変性シリコーン

（式中、Ｒ²は炭素数１〜８のアルキレン基を示し、Ｒ³は水素原子、又は炭素数１〜２２のアルキル基もしくはアルケニル基を示す。ｑは１〜１００、ｒは１〜１００、ｓ１，ｓ２は独立に０〜５０、ｔ１，ｔ２は独立に０〜５０を示し、ｓ１、ｓ２、ｔ１、及びｔ２全てが０になることはない。）

（式中、Ｒ⁴は炭素数１〜８のアルキレン基を示し、Ｒ⁵は水素原子、又は炭素数１〜２２のアルキル基もしくはアルケニル基を示す。ｕは１〜１００、ｖは１〜１００、ｗは１〜５０、ｘは０〜５０を示す。）

（式中、ａは１〜５０、ｂは１〜５０、ｃは１〜５０、ｙは１〜５０、ｚは１〜５０を示す。）
[２]．（Ｃ）／（Ａ）で表される質量比が０．０２〜０．５０であることを特徴とする[１]記載の液体皮膚洗浄剤組成物。
[３]．（Ｂ）水溶性高分子化合物がヒドロキシプロピルメチルセルロースであることを特徴とする[１]又は[２]記載の液体皮膚洗浄剤組成物。
[４]．透明な組成物であることを特徴とする[１]〜[３]のいずれかに記載の液体皮膚洗浄剤組成物。 Accordingly, the present invention provides the following inventions.
[1]. A liquid skin cleanser composition containing the following components (A), (B), and (C).
(A) 2-30 mass% fatty acid salt
(B) Nonionic water-soluble polymer compound or anionic water-soluble polymer compound 0.1 to 3% by mass
(C) 0.3-5 mass% of silicone compounds represented by the following general formula (1), (2), (3), (4) or (5)
Betaine-modified silicone represented by the following general formula (1):

(In the formula, m represents 1 to 50, and n represents 1 to 50.)
A cation-modified silicone represented by the following general formula (2):

(In the formula, R ¹ represents an alkyl group or alkenyl group having 8 to 22 carbon atoms, and p represents 1 to 50.)
Polyoxyalkylene-modified silicone represented by the following general formula (3), (4) or (5)

(Wherein R ² represents an alkylene group having 1 to 8 carbon atoms, R ³ represents a hydrogen atom, or an alkyl or alkenyl group having 1 to 22 carbon atoms. Q is 1 to 100, and r is 1 to 100. , S1, s2 are independently 0-50, t1, t2 are independently 0-50, and s1, s2, t1, and t2 are not all 0.)

(In the formula, R ⁴ represents an alkylene group having 1 to 8 carbon atoms, R ⁵ represents a hydrogen atom, or an alkyl group or alkenyl group having 1 to 22 carbon atoms. U is 1 to 100, and v is 1 to 100. , W represents 1 to 50, and x represents 0 to 50.)

(Wherein, a represents 1 to 50, b represents 1 to 50, c represents 1 to 50, y represents 1 to 50, and z represents 1 to 50.)
[2]. The liquid skin cleanser composition according to [1], wherein the mass ratio represented by (C) / (A) is 0.02 to 0.50.
[3]. (B) The liquid skin cleanser composition according to [1] or [2], wherein the water-soluble polymer compound is hydroxypropylmethylcellulose.
[4]. The liquid skin cleanser composition according to any one of [1] to [3], which is a transparent composition.

  According to the present invention, it is possible to provide a liquid skin cleanser composition that has smooth skin and good foaming, and has a refreshing feeling during rinsing and excellent stability at high and low temperatures.

  (A) component of this invention is a fatty acid salt, and can be used individually by 1 type or in combination of 2 or more types. By using a fatty acid salt as a cleaning base material, the foaming and the refreshing feeling at the time of rinsing are good, and (B) a nonionic water-soluble polymer compound or an anionic water-soluble polymer compound, and (C) a silicone compound In combination with, a smooth and smooth skin feel after washing can be obtained.

  (A) The fatty acid salt is not particularly limited as long as it is used in a normal detergent composition, and examples thereof include saturated or unsaturated fatty acids having 8 to 22 carbon atoms such as lauric acid, myristic acid, and palmitic acid, Use a fatty acid salt such as coconut oil fatty acid, hardened coconut oil fatty acid, palm oil fatty acid, hardened palm oil fatty acid, beef tallow fatty acid, hardened beef tallow fatty acid and the like, such as potassium salt, sodium salt, triethanolamine salt, and ammonium salt. be able to. Among these, from the point of foaming, C8-C22, More preferably, a C12-C16 saturated or unsaturated fatty acid salt is preferable. In addition, it is particularly preferable to use a fatty acid potassium salt from the viewpoint of color change and odor alteration during long-term storage and low precipitation at low temperatures. In addition, when mix | blending a fatty acid salt, fatty acid salt itself may be mix | blended, and you may mix | blend a fatty acid and an alkali separately in a liquid skin cleaning composition, respectively, and may use it.

  In the composition of the fatty acid salt of the component (A), the liquid skin cleanser composition of the present invention preferably has a laurate ratio of 50% by mass or more, more preferably 60 to 80% by mass. If the proportion of laurate in the fatty acid salt is less than 50% by mass, the amount of foam at the time of washing may not be sufficiently obtained with a small amount of use, while the proportion of laurate in the fatty acid salt is 80% by mass. If it exceeds 50%, a person with sensitive skin may feel irritation to the skin during and after washing. Fatty acid salts other than laurate are not particularly limited. However, since the foam quality at the time of washing becomes good, saturated fatty acid salts having 14 or more carbon atoms are added in the composition of (A) fatty acid salt in the range of 20 to 50. It is preferable to contain it by mass%, More preferably, 30-50 mass%.

  (A) The compounding quantity of a fatty acid salt is 2-30 mass% in a liquid skin cleaning composition, Preferably it is 5-20 mass%. If the blending amount is less than 2% by mass, the amount of foam is too small. On the other hand, if the blending amount exceeds 30% by mass, foaming may be delayed or the rinse may feel wet. In this case, precipitation due to fatty acid salts is likely to occur, and the low-temperature storage stability deteriorates.

  The component (B) of the present invention is a nonionic water-soluble polymer compound or an anionic water-soluble polymer compound, and can be used singly or in appropriate combination of two or more. When a cationic polymer compound such as cationized cellulose or cationized guar gum is blended, it feels slippery at the time of rinsing and a refreshing feeling cannot be obtained.

  Examples of the nonionic water-soluble polymer compound include cellulose polymer compounds such as methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose, and thickening polysaccharides such as xanthan gum, guar gum, and carrageenan.

  Examples of the anionic water-soluble polymer compound include an acrylic acid alkyl methacrylate copolymer, carboxymethylcellulose, carboxyvinyl polymer, and the like.

  Among these, in the combination with the fatty acid salt of the component (A), separation and water separation hardly occur, and in the point that there is little luster when rinsing, a nonionic cellulose polymer compound, alkyl methacrylate methacrylate copolymer Coalescence is preferred, and hydroxypropylmethylcellulose is preferred because of its excellent effect of imparting a smooth skin feel after use.

Hydroxypropylmethylcellulose preferably has a methoxyl group ratio of 19 to 30%, a hydroxypropoxyl group ratio of 4 to 12%, and a weight average molecular weight in the range of 100,000 to 500,000. Specific examples include Metroze 60SH-10000 and Metroise 60SH-4000 manufactured by Shin-Etsu Chemical Co., Ltd. In addition, the measuring method of a weight average molecular weight is based on a gel permeation chromatographic analysis (GPC) method. Measurement conditions and apparatus are shown below.
[Measurement condition]
Column: Shodex SB-806MHQ 40 ° C
Eluent: 0.1 mol / L NaNO ₃ 1.0 mL / min
Solvent: 0.1 mol / L NaNO ₃
・ Injection volume: 200 μL
[apparatus]
-Liquid feed pump: Shodex DS-4 Showa Denko K.K.
-Light scattering detector (MALLS): DAWN DSP Wyatt Technology Corporation
Concentration detector: Shodex R1-71 Showa Denko K.K.

  (B) The compounding quantity of the nonionic water-soluble polymer compound or anionic water-soluble polymer compound of a component is 0.1-3 mass% in a liquid skin cleaning composition, 0.5-1.5 More preferred is mass%. When the blending amount of the component (B) is less than 0.1% by mass, a smooth skin feel after use cannot be obtained sufficiently. On the other hand, if the blending amount exceeds 3% by mass, foaming is poor and a refreshing feeling at the time of rinsing cannot be obtained, and further, the transparency is impaired, and the viscosity becomes too high and the usability as a liquid product is deteriorated. .

  Component (C) is a silicone compound represented by the following general formula (1), (2), (3), (4) or (5), and is used alone or in combination of two or more. Can do. By blending the specific water-soluble silicone compound of the present invention, a stable composition is obtained in which separation of oil components hardly occurs over time or under high temperature conditions. Furthermore, the combination of component (B) improves storage stability at higher temperatures and lower temperatures. When component (C) is blended, compared to a composition blended with a water-insoluble oil such as dimethyl silicone, This eliminates the disadvantages of being inferior in the prevention of sagging and imparting a smooth skin feel and greatly improves the smoothness of the skin after use.

（式中、ｍは１〜５０、ｎは１〜５０を示す。） The betaine-modified silicone represented by the general formula (1) is obtained by adding a betaine-type functional group to dimethyl silicone.

(In the formula, m represents 1 to 50, and n represents 1 to 50.)

  Specific examples of the betaine-modified silicone represented by the general formula (1) include ABIL B9950 (trade name: manufactured by Degussa).

  The cation-modified silicone represented by the general formula (2) is obtained by adding a cation group to the terminal of dimethyl silicone.

（式中、Ｒ¹は炭素数８〜２２のアルキル基又はアルケニル基を示し、ｐは１〜５０を示す。）

(In the formula, R ¹ represents an alkyl group or alkenyl group having 8 to 22 carbon atoms, and p represents 1 to 50.)

  Specific examples of the cation-modified silicone represented by the general formula (2) include a silicone compound registered as INCI name: QUATERNIUM-80, and ABIL QUAT 3272 (trade name; manufactured by Degussa). .

  The polyoxyalkylene-modified silicone represented by the following general formula (3) is a copolymer in which dimethylsiloxane and a polyoxyalkylene group are linearly bonded. Examples include polyoxyethylene / methylpolysiloxane copolymer and poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymer. From the point of smooth feel after use, poly (oxyethylene / oxypropylene) ) · Methylpolysiloxane copolymer is preferred.

（式中、Ｒ²は炭素数１〜８のアルキレン基を示し、Ｒ³は水素原子、又は炭素数１〜２２のアルキル基もしくはアルケニル基を示す。ｑは１〜１００、ｒは１〜１００、ｓ１，ｓ２は独立に０〜５０、ｔ１，ｔ２は独立に０〜５０を示し、ｓ１、ｓ２、ｔ１、及びｔ２全てが０になることはない。）

(Wherein R ² represents an alkylene group having 1 to 8 carbon atoms, R ³ represents a hydrogen atom, or an alkyl or alkenyl group having 1 to 22 carbon atoms. Q is 1 to 100, and r is 1 to 100. , S1, s2 are independently 0-50, t1, t2 are independently 0-50, and s1, s2, t1, and t2 are not all 0.)

A specific example of the polyoxyalkylene-modified silicone represented by the general formula (3) is a silicone compound registered as INCI name: BIS-PEG / PPG-20 / 20 DIMETHICONE, and ABIL B8832 (trade name; Degussa, R ² = C ₃ H ₆ , R ³ = H, s1, s2 = 20, t1, t2 = 20, q = 1, r = 1 to 50) and the like.

  The polyoxyalkylene-modified silicone represented by the general formula (4) is a copolymer of dimethylsiloxane and methylsiloxane having a polyoxyalkylene group in the side chain. Polyoxyethylene / methylpolysiloxane copolymer and poly (oxyethylene / oxypropylene) / methylpolysiloxane copolymer are selected from the viewpoint of smooth feel after use. -A methylpolysiloxane copolymer is preferred.

（式中、Ｒ⁴は炭素数１〜８のアルキレン基を示し、Ｒ⁵は水素原子、又は炭素数１〜２２のアルキル基もしくはアルケニル基を示す。ｕは１〜１００、ｖは１〜１００、ｗは１〜５０、ｘは０〜５０を示す。）

(In the formula, R ⁴ represents an alkylene group having 1 to 8 carbon atoms, R ⁵ represents a hydrogen atom, or an alkyl group or alkenyl group having 1 to 22 carbon atoms. U is 1 to 100, and v is 1 to 100. , W represents 1 to 50, and x represents 0 to 50.)

Specific examples of the polyoxyalkylene-modified silicone represented by the general formula (4) include trade names KF6011 (R ⁴ = C ₃ H ₆ , R ⁵ = CH ₃ , u =, manufactured by Shin-Etsu Chemical Co., Ltd.). 3~7, v = 5~15, w = 7~13, x = 0), KF6012 (R 4 = C 3 H 6, R 5 = C 4 H 9, u = 3~7, v = 5~15 , W = 7 to 13, x = 0), or trade name SH3749 manufactured by Toray Dow Corning (R ⁴ = C ₃ H ₆ , R ⁵ = H, u = 50 to 100, v = 1 to 20, w = 10~40, x = 10~40) , SH3771M (R 4 = C 3 H 6, R 5 = H, u = 1~10, v = 1~10, w = 10~20, x = 0) Etc.

  The polyoxyalkylene-modified silicone includes a structure represented by the general formula (3) in which a polyoxyalkylene group is linearly bonded to dimethylsiloxane, and a general formula (4) having a polyoxyalkylene group in the side chain of dimethylsiloxane. The polyoxyalkylene-modified silicone in which a polyoxyalkylene group is linearly bonded to the dimethylsiloxane represented by the general formula (3) has a smooth skin feel and low temperature stability. It is particularly preferred because of its superiority.

  The polyoxyalkylene-modified silicone represented by the following general formula (5) is a compound in which poly (oxyethylene / oxypropylene) and an amino group are added to dimethylpolysiloxane.

（式中、ａは１〜５０、ｂは１〜５０、ｃは１〜５０、ｙは１〜５０、ｚは１〜５０を示す。）

(Wherein, a represents 1 to 50, b represents 1 to 50, c represents 1 to 50, y represents 1 to 50, and z represents 1 to 50.)

  A specific example of the polyoxyalkylene-modified silicone represented by the general formula (5) is a silicone compound registered as an INCI name: METHOXY PEG / PPG-7 / 3 AMINOPROPYL DIMETHICONE, and ABIL SOFT AF100 (trade name) ; Manufactured by Degussa).

  (C) The compounding quantity of a component is 0.3-5 mass% in a liquid skin cleaning composition, Preferably it is 0.3-3 mass%, More preferably, it is 0.5-2 mass%. When the blending amount of the component (C) is less than 0.3% by mass, a smooth skin feel after use cannot be obtained sufficiently. On the other hand, when the blending amount exceeds 5% by mass, foaming is deteriorated or rinsed. Sometimes you may feel a lot of sliminess.

  In the present invention, the component (B) is particularly preferably hydroxypropylmethylcellulose, and the mass ratio (B) / (C) between the component (B) and the component (C) is preferably in the range of 0.1-9. When it is within this range, a liquid skin cleanser composition excellent in smooth skin feel after use can be obtained.

  In the present invention, the mass ratio represented by (C) / (A) is preferably 0.02 to 0.50, and a smooth skin feel after use can be obtained more in this range. On the other hand, if the above ratio exceeds 0.50, foaming may be slightly deteriorated, or a smooth skin feel may be obtained, but there may be a strong feeling of luster when rinsing. The ratio is more preferably in the range of 0.05 to 0.30.

  In the present invention, “water-soluble” is defined as a uniform solution obtained when dissolved in water. In some cases, it may not always be a clear appearance but may have a slightly turbid appearance, but it is defined as water-soluble when the solute is not separated and the uniformity is maintained.

  The liquid skin cleanser composition of the present invention is preferably a composition having a transparent appearance. Transparent means that a sample is placed in a cylindrical transparent glass bottle having an inner diameter of 35 mm and an outer diameter of 40 mm, and the five-point black Gothic characters can be read through the longest path length when viewed from the side of the cylinder. If it is transparent, it may be colored.

  The liquid skin cleansing composition of the present invention preferably contains a polyol, and can be used singly or in appropriate combination of two or more. Examples of the polyol include polyhydric alcohols such as propylene glycol, dipropylene glycol, hexylene glycol, 1,3-butylene glycol, glycerin and sorbitol. The blending amount of the polyol is preferably in the range of 10 to 30% by mass of the liquid skin cleanser composition. If the blending amount of the polyol is less than 10% by mass, precipitation and precipitation derived from the fatty acid salt may occur at low temperatures, and even if blended in excess of 30% by mass, the effect of inhibiting precipitation and precipitation from the fatty acid salt at low temperatures may occur. Has no effect.

  In the liquid skin cleansing composition of the present invention, other suitably selected components can be used alone or in combination of two or more as long as the effects of the present invention are not impaired. wear. The other components can be appropriately selected from those usually used in liquid skin cleanser compositions. For example, anionic surfactants, amphoteric surfactants and nonionic surfactants other than component (A) Surfactants such as liquid paraffin and squalane, ester oils, hydrocarbons, silicones, alcohols such as lower or higher alcohols, lanolin derivatives, protein derivatives, acrylic resin dispersions, drugs such as vitamins, bactericides, preservatives , PH adjusters, antioxidants, sequestering agents, ultraviolet absorbers, animal and plant extracts or derivatives thereof, pigments, fragrances, pigments, inorganic powders, clay minerals, nylon, polyethylene, and other water-insoluble polymer powders. It is done.

  Examples of the anionic surfactant other than the component (A) include carboxylic acid-based, sulfate-based, sulfonate-based, and phosphate ester-based surfactants. Examples of the carboxylic acid surfactant include alkyl ether carboxylates, N-acyl sarcosine salts, N-acyl glutamates, and the like, for example, sodium lauryl ether carboxylate, sodium N-lauroyl sarcosine, sodium N-lauroyl glutamate N-lauroyl-N-methyl-β-alanine triethanolamine and the like. Examples of sulfate surfactants include alkyl sulfates and polyoxyalkylene sulfates, and examples include sodium polyoxyethylene lauryl sulfate. Examples of the sulfonate-based surfactant include sulfosuccinic acid-based, taurate-based, isethionate-based, α-sulfonic acid-based and the like, and N-cocoylmethyl taurine sodium, sodium polyoxyethylene alkylsulfosuccinate and the like. Examples of phosphate ester surfactants include alkyl phosphates, and examples include trilauramine monolauryl phosphate and dipotassium monolauryl phosphate.

  The amphoteric surfactant is not particularly limited as long as it is used for a normal detergent, and examples thereof include carboxybetaine-based, sulfobetaine-based, imidazolium-betaine-based surfactants. Examples of carboxybetaine surfactants include lauryl dimethylaminoacetic acid betaine and coconut oil fatty acid amidopropyl betaine. Examples of sulfobetaine surfactants include coconut oil fatty acid dimethylsulfopropyl betaine and lauryl dimethylaminohydroxysulfobetaine. In addition, examples of the imidazolium betaine surfactant include coconut oil alkyl-N-hydroxyethyl imidazolinium betaine. In particular, a desalted one is preferably used.

  The nonionic surfactant is not particularly limited as long as it is used for a normal detergent, and is polyoxyethylene fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyglycerin fatty acid ester, poly Examples include oxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene glycol, coconut oil fatty acid alkanolamide, sucrose fatty acid ester, alkyl glycoside, alkyl glyceryl glycoside, methyl glucoside fatty acid ester and the like. In particular, polyoxyethylene alkyl ethers in which the alkyl group has a straight chain or branched chain structure having 16 to 22 carbon atoms and the average added mole number of ethylene oxide is 8 to 16 are preferred from the viewpoint of suppressing skin roughness.

  The liquid skin cleansing composition of the present invention can be contained in a normal container used for liquid products. Examples of containers include bottles, tubes, and bag-like containers. The material of the container can be selected from any resin used in liquid product containers such as polyethylene, polypropylene, polyethylene terephthalate, laminated film of aluminum and resin, glass, and metal. When storing a liquid skin cleanser composition in a bottle, a container that is equipped with a pump dispenser and can discharge a certain amount of contents during use is also a container that discharges the contents liquid by pushing the body of the bottle in an inverted or overturned state Can also be used.

  The liquid skin cleansing composition of the present invention can be used by filling a former container that discharges the content liquid in a foam state at the time of use. The former container is not particularly limited as long as the detergent composition can be mixed with air and discharged in a foamed state. For example, a squeeze foamer container and a nozzle that can discharge bubbles by squeezing the bottle body by hand Examples thereof include a pump former container that can discharge bubbles by pushing down the part, and can be appropriately selected according to the purpose. As such a former container, those manufactured by Daiwa Steel Co., Ltd., Yoshino Kogyo Co., Ltd., etc. can be used. In the liquid skin cleanser composition, the present invention is suitable for filling a former container which is likely to be clogged because precipitation at a low temperature is suppressed in the liquid skin cleanser composition, and the liquid skin cleanser composition is used as a former container. It is preferable to use a cleansing agent comprising a cleansing agent and a foam container filled with a liquid skin cleansing composition filled in the former container.

  The viscosity of the liquid skin cleanser composition of the present invention was measured at 25 ° C. using a B-type viscometer (Tokyo Instruments Co., Ltd.), rotor No. Under conditions of 2 to 4, 60 rpm and 60 seconds, 10 mPa · s or more and 2 Pa · s or less are preferable, and more preferably 1 Pa · s or less. If the viscosity is less than 10 mPa · s, precipitation of the fatty acid salt (A) may be likely to occur when stored at a low temperature, while foaming may be delayed if the viscosity exceeds 2 Pa · s. When the liquid skin cleansing composition is filled in the former container, the viscosity (25 ° C.) of the liquid skin cleansing composition is preferably in the range of 10 mPa · s to 30 mPa · s. When the viscosity exceeds 30 mPa · s, the foam quality when discharged from the former pump may be remarkably deteriorated or the pressing pressure may be increased. When the consumer uses the detergent by foaming with hands, sponges, towels, etc., the viscosity (25 ° C.) of the liquid skin detergent composition is preferably in the range of 100 mPa · s to 1 Pa · s. When the viscosity is less than 100 mPa · s, it may be easily spilled when taken on a hand or a towel.

  The pH of the liquid skin cleanser composition of the present invention is preferably in the range of 8 to 11 or less when measured with a glass electrode type pH meter (Toa DKK, HM-30G, etc.) at 25 ° C. Is in the range of 9-11. If the pH is lower than 8, the fatty acid salt may precipitate at a low temperature. On the other hand, when the pH is higher than 11, skin irritation may become stronger.

  It does not specifically limit as a liquid skin cleansing composition of this invention, It can be set as a face wash, a hand soap, a body soap, etc.

  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. It can be obtained by mixing the above components (A) to (C), optional components, and water (the balance is blended so that the entire liquid skin cleanser composition is 100% by mass). Moreover, there is no restriction | limiting in particular as an apparatus which prepares a liquid skin cleansing composition, According to the objective, it can select suitably, There is a shear force and the stirring blade (propeller, turbine, disper, etc.) which can mix the whole is used. An equipped stirring device is preferred.

  EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not restrict | limited to the following Example. In the following examples, unless otherwise specified, “%” in the composition indicates mass%, the ratio indicates the mass ratio, and the amount of each component in the table is an amount converted into a pure component.

[Examples 1 to 15 and Comparative Examples 1 to 10]
Each component shown to Tables 1-4 was mixed uniformly, pH was adjusted to 10 with potassium hydroxide, and the liquid skin cleansing composition (hand soap) was prepared. About the obtained hand soap, the external appearance was confirmed and evaluated by the following evaluation method. The results are also shown in the table.

Evaluation of actual use was carried out by five panelists specializing in evaluation methods for foaming, refreshing feeling during rinsing, and smoothness of skin feel .
After wetting both hands with water, 1 mL of the liquid skin cleansing composition was taken by hand and the hands were rubbed for 10 seconds, and then “good foaming” was evaluated. Subsequently, the foam covering the fingers and the washing solution were rinsed with running water, and the “fresh feeling during rinsing” was evaluated. From the feel of the hand skin after towel drying, the “smoothness of the skin feel” was evaluated. A result is shown based on the following evaluation criteria.

<Evaluation criteria>
◎: 5 out of 5 respondents: ○: 3-4 out of 5 respondents △: 1-2 out of 5 respondents: ×: Respondent good 0 out of 5

Evaluation Method of High-Temperature Stability After filling the liquid skin cleanser composition into a hard glass vial (45 mL) and leaving it at 50 ° C. for 1 week, observe the presence or absence of oil separation visually. And evaluated according to the following evaluation criteria.
<Evaluation criteria>
○: Good (separation of oil is not recognized)
Δ: Slightly poor (slight oil separation is observed)
X: Defect (separation of oil is recognized)

Evaluation Method of Low Temperature Stability 45 g of a liquid skin cleanser composition is filled into a hard glass vial (capacity: 50 mL) and left to stand for 1 week under storage conditions at 0 ° C., and then visually checked for precipitation or crystal precipitation. Observed and evaluated according to the following evaluation criteria.
<Evaluation criteria>
A: Good (no precipitation, precipitation, or cloudiness is observed)
○: Slightly poor (slight precipitation, precipitation, white turbidity is observed, but dissolves quickly and uniformly when returned to room temperature)
Δ: Slightly poor (precipitation, precipitation, and white turbidity are observed, but when the solution is returned to room temperature, it quickly dissolves uniformly)
X: Defect (precipitation, precipitation, cloudiness is observed)

* 1: Metrozu HPMC 60SH-10000 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Methoxyl group: 28 to 30%, hydroxypropyl group: 7 to 12%, weight average molecular weight: about 300,000 * 2: Reoar MS-200 (manufactured by Lion Chemical Co., Ltd.)
* 3: Metroles HPMC 60SH-4000 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Methoxyl group: 28-30%, hydroxypropyl group: 7-12%, weight average molecular weight: about 200,000 * 4: Metroles HPMC 60SH-50 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Methoxyl group: 28-30%, hydroxypropyl group: 7-12%, weight average molecular weight: about 80,000 * 5: Fujichemi HEC SZ-25 (manufactured by Sumitomo Seika Co., Ltd.)
* 6: ABIL B9950 (Degussa)
General name: Dimethicone propyl PG betaine INCI name: DIMETHICONE PROPYL PG-BETAINE
* 7: ABIL QUAT 3272 (Degussa)
General name: Cocamidopropyldimethylammoniohydroxypropyloxypropylsiloxane / methylpolysiloxane copolymer acetate INCI name: QUATERNIUM-80
* 8: ABIL B8832 (Degussa)
General name: Poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer INCI name: BIS-PEG / PPG-20 / 20 DIMETHICONE
* 9: SH3749 (Toray Dow Corning)
General name: Poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer INCI name: PEG / PPG-20 / 20 DIMETHICONE
* 10: SH3771M (manufactured by Toray Dow Corning)
General name: Polyoxyethylene methyl polysiloxane copolymer INCI name: PEG-12 DIMETHICONE
* 11: KF6011 (manufactured by Shin-Etsu Chemical Co., Ltd.)
General name: Polyoxyethylene methyl polysiloxane copolymer (general formula (4))
INCI name: PEG-11 METHYL ETHER DIMETHICONE
* 12: ABIL SOFT AF100 (Degussa)
Generic name: Metoshiki PEG / PPG-7 / 3 aminopropyl dimethicone INCI name: METHOXY PEG / PPG-7 / 3 AMINOPROPYL DIMETHICONE
* 13: ALSCOPE NS-230 (manufactured by Toho Chemical Industry Co., Ltd.)
Average number of moles of ethylene oxide added = 2
* 14: AOS-Na (manufactured by Lion Corporation)
* 15: Leoguard GP (manufactured by Lion Chemical Co., Ltd.)
* 16: BY22-007 (Toray Dow Corning Co., Ltd.)
* 17: Isopropylmethylphenol (Osaka Kasei Co., Ltd.)
* 18: EMALEX 611 (manufactured by Nippon Emulsion Co., Ltd.)
* 19: Triclosan (Ciba Specialty Chemical Co., Ltd.)
* 20: Amorgen SH (Daiichi Kogyo Seiyaku Co., Ltd.)
* 21: AX agent-S (manufactured by Lion Akzo Co., Ltd.)
* 22: Amisoft LK-11 (Ajinomoto Co., Inc.)
* 23: Sofudazoline LPB-R (manufactured by Kawaken Fine Chemical Co., Ltd.)
* 24: Camellia Liquid (Ichimaru Falcos Co., Ltd.)
* 25: Rosemary water (Maruzen Pharmaceutical Co., Ltd.)

  The following liquid skin cleansing composition was prepared based on a conventional method and evaluated in the same manner as in the above Examples.

[Example 15] Medicinal hand soap composition%
Potassium laurate 8
Potassium myristate 6
POE (11) stearyl ether * 18 1
Hydroxypropyl methylcellulose * 3 1
PEG / PPG methylpolysiloxane copolymer * 8 2
Isopropyl methylphenol * 17 0.1
Triclosan * 19 0.1
Lauryldimethylaminoacetic acid betaine * 20 1
Propylene glycol 15
Sorbit 5
Edetate tetrasodium tetrahydrate 0.2
Hydroxyethane diphosphonic acid 0.1
Blue No. 1 Trace Yellow No. 4 Trace Fragrance 0.4
Potassium hydroxide appropriate amount (adjusted to pH 10)
Purified water balance
Total 100.0
* (C) / (A) = 0.14
Evaluation / Appearance: Transparent in light green / Good foaming: ◎
-Refreshing feeling when rinsing: ◎
-Smooth skin feel: ◎
・ High temperature stability: ◎
・ Low temperature stability: ○

[Example 16] Medicinal body soap composition%
Potassium laurate 10
Potassium myristate 10
Potassium palmitate 2
Hydroxypropyl methylcellulose * 4 0.5
Alkyl acrylate copolymer * 2 0.5
PEG / PPG methylpolysiloxane copolymer * 8 2
POE (11) stearyl ether * 18 1
Lauryldimethylamine oxide * 21 1
Isopropyl methylphenol * 17 0.1
Propylene glycol 15
Edetic acid 0.1
Hydroxyethane diphosphonic acid 0.1
Fragrance 1
Potassium hydroxide appropriate amount (adjusted to pH 10)
Purified water balance
Total 100.0
* C / A = 0.10
Evaluation / Appearance: Light red, transparent / Good foaming: ◎
-Refreshing feeling when rinsing: ○
-Smooth skin feel: ◎
・ High temperature stability: ◎
・ Low temperature stability: ○

[Example 17] Medicinal body soap composition%
Potassium laurate 10
Potassium myristate 10
Potassium palmitate 2
Alkyl acrylate copolymer * 2 1.5
Hydroxyethyl cellulose * 5 0.5
PEG methylpolysiloxane copolymer * 11 2
POE (11) stearyl ether * 18 1
Lauryldimethylamine oxide * 21 1
Dipotassium glycyrrhizinate 0.1
Propylene glycol 15
Edetic acid 0.1
Hydroxyethane diphosphonic acid 0.1
Fragrance 1
Potassium hydroxide appropriate amount (adjusted to pH 10)
Purified water balance
* C / A = 0.10
Evaluation / Appearance: Light red, transparent / Good foaming: ◎
-Refreshing feeling when rinsing: ○
・ Smoothness of skin feel: ○
・ High temperature stability: ◎
・ Low temperature stability: ○

[Example 18] Liquid skin cleansing composition composition in former container
Potassium laurate 1
Potassium myristate 1
N-lauroyl-potassium L-glutamate * 22 3
Lauric acid amidopropyl betaine * 23 3
Hydroxypropyl methylcellulose * 4 0.5
Betaine-modified silicone * 6 0.5
Cationic modified silicone * 7 0.5
POE (11) stearyl ether * 18 2
Dipotassium glycyrrhizinate 0.1
Propylene glycol 10
Dipropylene glycol 10
Edetic acid 0.1
Hydroxyethane diphosphonic acid 0.1
Rosemary extract * 25 0.1
Potassium hydroxide appropriate amount (adjusted to pH 10)
Fragrance 0.4
Purified water balance
Total 100.0
* C / A = 0.50
Evaluation / Appearance: Transparent / Bubbling: ◎
-Refreshing feeling when rinsing: ○
-Smooth skin feel: ◎
・ High temperature stability: ◎
・ Low temperature stability: ○

Claims (4)

A liquid skin cleanser composition containing the following components (A), (B), and (C).
(A) 2-30 mass% fatty acid salt
(B) Nonionic water-soluble polymer compound or anionic water-soluble polymer compound 0.1 to 3% by mass
(C) 0.3-5 mass% of silicone compounds represented by the following general formula (1), (2), (3), (4) or (5)
Betaine-modified silicone represented by the following general formula (1):

(In the formula, m represents 1 to 50, and n represents 1 to 50.)
A cation-modified silicone represented by the following general formula (2):

(In the formula, R ¹ represents an alkyl group or alkenyl group having 8 to 22 carbon atoms, and p represents 1 to 50.)
Polyoxyalkylene-modified silicone represented by the following general formula (3), (4) or (5)

(Wherein R ² represents an alkylene group having 1 to 8 carbon atoms, R ³ represents a hydrogen atom, or an alkyl or alkenyl group having 1 to 22 carbon atoms. Q is 1 to 100, and r is 1 to 100. , S1, s2 are independently 0-50, t1, t2 are independently 0-50, and s1, s2, t1, and t2 are not all 0.)

(In the formula, R ⁴ represents an alkylene group having 1 to 8 carbon atoms, R ⁵ represents a hydrogen atom, or an alkyl group or alkenyl group having 1 to 22 carbon atoms. U is 1 to 100, and v is 1 to 100. , W represents 1 to 50, and x represents 0 to 50.)

(Wherein, a represents 1 to 50, b represents 1 to 50, c represents 1 to 50, y represents 1 to 50, and z represents 1 to 50.)   2. The liquid skin cleanser composition according to claim 1, wherein the mass ratio represented by (C) / (A) is 0.02 to 0.50.   3. The liquid skin cleanser composition according to claim 1 or 2, wherein the water-soluble polymer compound (B) is hydroxypropylmethylcellulose.   The liquid skin cleansing composition according to any one of claims 1 to 3, which is a transparent composition.