JP5687848B2 - Cleaning composition - Google Patents

Description

  The present invention relates to a cleaning composition.

  One of the top women's skin problems is the conspicuous pores. This is largely due to dirt (soft butter-like dirt and hard solid dirt (for example, square plugs)) formed in the pores. These pore dirt is harder to remove than the dirt on the skin surface. However, leaving the pores dirty causes not only the conspicuous pores but also acne and various skin problems. Therefore, removal of pore dirt is preferable in terms of beauty and skin health.

Conventionally, for the purpose of removing pore stains, clay pack cosmetics containing powders of clay minerals and the like (see Patent Document 1) and non-aqueous facial cleansers using a polyol that dissolves pore sebum have been proposed ( Patent Document 2). These cosmetics and face wash can remove liquid fat and soft butter-like sebum components stored in pores, but it is difficult to remove hard solid stains, especially horn plugs. It was.
As a method for removing hard solid stains formed on pores, particularly square plugs, a sheet agent is applied and a pack agent is applied (see Patent Documents 3 and 4).
Furthermore, as a method for removing the square plug, a method of massaging the skin using a cosmetic material having an oil component with a predetermined viscosity has been proposed (see Patent Document 5).

Japanese Patent Laid-Open No. 3-190810 JP-A-8-59455 JP-A-9-194325 JP-A-8-109119 Japanese Patent Laid-Open No. 2002-241260

However, the conventional methods have the following problems.
In Patent Document 3 and Patent Document 4, a sheet agent is applied to the skin, or pores are wrapped with a pack agent, and a square plug that is a dirt on the pores is adsorbed thereto, and then the sheet agent or pack agent is peeled off, At the same time, remove the plug. This method is troublesome in that pretreatment such as pre-watering the use site must be performed and drying is required before peeling.
In addition, the method described in Patent Document 5 utilizes the effect that the oil component of the main base dissolves the horn plug, and although there is a certain degree of horn plug removal effect, it is sufficient to remove the horn plug fundamentally. It was not satisfactory. Furthermore, when the oil agent is blended in a large amount, there is a problem in that the oily feeling remains on the washed-out skin, resulting in stickiness.
Thus, there was nothing that could be used easily and was excellent in the effect of removing hard solid stains formed on pores, particularly square plugs, and also had a good skin feel after washing.

  The present invention provides a cleaning composition that is easy to use, has an excellent effect of removing hard solid stains formed on pores, particularly square plugs, and has a good skin feel after washing. .

  The present inventor has (A) a nonionic surfactant, (B) an oil agent, (C) a compound having 2 or more and 6 or less carbon atoms and having 1 or 2 hydroxyl groups, (D) a specific water-soluble polymer, (E) It discovered that a specific phase state was taken and said subject could be solved by combining water and setting it as an O / W type emulsion composition.

That is, the present invention
The following components (A) to (E):
(A) It is composed of a mixed surfactant obtained by mixing one kind of nonionic surfactant or two or more kinds of nonionic surfactants, and one kind of the nonionic surfactant or the HLB of the mixed surfactant is Nonionic surfactant which is 10 or more and 15 or less 5% by mass or more and 50% by mass or less (B) Oil whose viscosity at 30 ° C. is 15 mPa · s or less 8% by mass or more and less than 39% by mass (C) Carbon number Is a compound having a hydroxyl group of 1 or 2 and 10 or more and 50 or less (D) (meth) acrylic acid as a structural unit, or acroylmethyl taurate vinyl One or more types selected from pyrrolidone copolymers in total include 0.01 mass% or more and 5 mass% or less (E) water 10 mass% or more and 52 mass% or less,
The present invention provides an O / W emulsion cleaning composition having a mass ratio represented by (A) / (B) of 3/7 or more and 3/1 or less.
Here, content of each component is a thing when the whole cleaning composition is set to 100. FIG.

  ADVANTAGE OF THE INVENTION According to this invention, the cleaning composition which is easy to use, is excellent in the removal effect of the hard solid stain | pollution | contamination formed in a pore, especially a square plug, and also has the favorable skin feel after washing | cleaning is provided. .

(A) is a phase diagram of the cleaning composition of the present invention. (B) is a phase diagram of a conventional cleaning composition. It is a phase state diagram of the cleaning composition of the present invention. FIG. 3 is a phase diagram of the cleaning composition of the present invention.

Hereinafter, this embodiment will be described.
The cleaning composition in the present invention is an O / W emulsion. Component (A) nonionic surfactant, (B) oil agent having a viscosity at 30 ° C. of 15 mPa · s or less, (C) a compound having 2 or more and 6 or less carbon atoms and having 1 or 2 hydroxyl groups, (E ) A detergent composition obtained by combining a water-soluble polymer containing component (D) (meth) acrylic acid as a monomer constituent unit or an acryloylmethyltaurate-vinylpyrrolidone copolymer with the composition of water. . The characteristic of this cleaning composition is that it changes in the order of three regions of an O / W type emulsion area, an adjacent isotropic one-liquid phase area, and an oil phase area as moisture decreases. Washing with these three phases is excellent in the effect of dissolving hard solid stains formed in pores, particularly horn plugs, and the effect of removing horn plugs is enhanced.
In addition, the compounding quantity of each component mentioned later is a thing when the whole cleaning composition is set to 100.

(Ingredient (A))
Component (A) is a nonionic surfactant, and is composed of one kind of nonionic surfactant or a mixed surfactant composed of two or more kinds of nonionic surfactants. The HLB of the agent or the mixed surfactant is 10 or more and 15 or less.
By setting the HLB of the mixed surfactant of component (A) to 10 or more and 15 or less, the cleaning composition can be made into an O / W emulsion.

Here, HLB (hydrophilic-lipophilic balance <Hydrophilic-Lypophilic Balance>) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant. For nonionic surfactants, Griffin ( Griffin).
The HLB of the mixed surfactant composed of two or more kinds of nonionic surfactants is obtained as follows. The HLB of the mixed surfactant is obtained by averaging the HLB values of the nonionic surfactants based on the blending ratio.
Mixed HLB = Σ (HLBx × Wx) / ΣWx
HLBx indicates the HLB value of the nonionic surfactant X.
Wx indicates the weight (g) of the nonionic surfactant X having a value of HLBx.

The nonionic surfactant of component (A) used in the present invention is not particularly limited as long as it satisfies the above conditions, and for example, a fatty acid ester having 8 to 22 carbon atoms or a higher grade having 8 to 22 carbon atoms. It consists of an ether of alcohol and has a hydroxyl group or an ethylene oxide group as a hydrophilic functional group.
Specifically, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, propylene glycol fatty acid ester, polyoxyethylene polyoxypropylene glycol, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit Fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid ester, polyalkyl glyceryl ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl ether fatty acid ester, sucrose fatty acid ester, alkyl Polyglucoside, (poly) alkyl glyceryl ether, etc. are mentioned.

Among them, from the viewpoint of detergency, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbit fatty acid ester, (poly) alkyl glyceryl ether, polyoxyethylene alkyl ether, sucrose fatty acid ester, Alkyl polyglucosides are excellent.
In particular, diglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbit fatty acid ester, (poly) alkyl glyceryl ether, and alkyl polyglucoside are preferable in terms of detergency against oily soil.

  Among them, diisoline monoisostearate (HLB8) contributes to the construction of an isotropic one-liquid phase made of components (A) to (E), and has high detergency against stab plug stains and a fresh feeling of use. , Polyoxyethylene (8) glyceryl monoisostearate (HLB9), tetraoleic acid polyoxyethylene sorbitol (HLB11), polyoxyethylene (7) coconut oil fatty acid glycerin (HLB13), monolauric acid (12) polyethylene glycol (HLB14) ), C8-C16 alkyl glucoside (HLB17), 2-ethylhexyl glyceryl ether (HLB7), monooleic acid diglycerin, and isostearyl glyceryl ether are preferred, and one or more can be used in combination. .

These components (A) are preferably used in combination of two or more nonionic surfactants having a high HLB and nonionic surfactants having a low HLB for the purpose of further improving the stability.
In other words, it is preferable that the difference between the highest HLB and the lowest HLB of the two or more kinds of nonionic surfactants mixed is 5 or more, particularly 7 or more, thereby improving the stability of the cleaning composition. Excellent to increase.

Content of a component (A) is 5 mass% or more and 50 mass% or less in all the compositions. By doing in this way, the specific phase state mentioned later can be taken.
Moreover, content of a component (A) is 5 mass% or more, Furthermore, 10 mass% or more, Preferably it is 16 mass% or more. By doing in this way, the familiarity with skin is good and pore dirt including a square plug can be lifted. Moreover, content of a component (A) is 50 mass% or less in the whole composition. Especially, it is preferable that content of a component (A) is 40 mass% or less, especially 33 mass% or less. By doing in this way, it can be washed away with no residual feeling.

(Ingredient (B))
The oil agent of component (B) used in the present invention is liquid at ordinary temperature and has a viscosity at 30 ° C. of 15 mPa · s or less. Here, the viscosity is measured with a BM viscometer (manufactured by Tokimec, measurement conditions: rotor No. 1, 60 rpm, 30 ° C.).
Such low-viscosity oils have high familiarity around the plugs clogged in pores and high solubility of dirt, so they are resistant to hard solid stains formed on the pores, especially dirt such as square plugs. Excellent detergency. Furthermore, it is not accompanied by a strong oily feeling and the feeling of use is good.
From the viewpoint of alleviating oiliness and providing an appropriate usability, it is preferable that the viscosity of the component (B) at 30 ° C. is as low as 10 mPa · s or less.

  As such an oil agent, among the liquid oils usually used in cosmetics, those satisfying the above conditions can be used. For example, hydrocarbon oils such as liquid paraffin, liquid isoparaffin, hydrogenated polyisobutene, squalane, isododecane; isostearic acid cholesteryl ester, isopropyl palmitate, isopropyl myristate, neopentyl glycol dicaprate, isopropyl isostearate, octadecyl myristate, 2- Ester oil such as cetyl ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, tri (2-ethylhexanoic acid) glycerin, tri (caprylic acid / capric acid) glycerin; alkyl-1,3-dimethylbutyl ether, nonylphenyl ether, etc. Ether oil: methylcyclopolysiloxane such as decamethylcyclopentasiloxane and octamethylcyclotetrasiloxane, methylpolysiloxane, Silicone oils such as Le phenyl polysiloxane; animal and vegetable oils such as olive oil; and the like can be used terpene oil.

  Of these, oil agents having a molecular weight of 300 or less are preferable because of their high detergency. Specific examples include hydrocarbon oils such as light liquid isoparaffin and hydrogenated polyisobutene, ester oils such as isopropyl myristate, isopropyl palmitate and isononanoyl isononanoate, and silicone oils such as octamethyltrisiloxane and octamethylcyclotetrasiloxane. It is done. In particular, branched hydrocarbon oils having 8 to 18 carbon atoms are preferred, and isododecane is preferred.

  Moreover, the oil agent of a component (B) may be formed with mixtures, such as hydrocarbon oil, ester oil, and silicone oil. In this case, isoparaffin is preferably contained in the component (B) in an amount of 30% by mass or more, preferably 42% by mass or more. From the viewpoint of odor, it is preferable not to contain hydrocarbons having 8 to 9 carbon atoms.

  As hydrocarbon oils, Marcazole R (Maruzen Petrochemical Co., Ltd.), IP Solvents 1620 and 2028 (Idemitsu Petrochemical Co., Ltd.), Isopar L, Isopar H (Exxon Chemical Co., Ltd.), Isosol 300 and 400 (trade names) are used. As mentioned above, Marcazole R is particularly preferably used because it contains isododecane with high purity.

The oil agent of component (B) is contained in the total composition in an amount of 8% by mass or more, further 10% by mass or more, and preferably 15% by mass or more. By doing in this way, sufficient detergency can be exhibited. Moreover, it is preferable that the oil agent of a component (B) contains 39 mass% or less in the whole composition, Preferably it is 30 mass% or less, Furthermore, 24 mass% or less is contained. By doing in this way, it can be washed away with no residual feeling.
Moreover, the specific phase state mentioned later can be taken by making content of the oil agent of a component (B) into 10 mass% or more and 39 mass% or less.

(Ingredient (C))
The compound of component (C) used in the present invention is a compound having 2 or more and 6 or less carbon atoms and having 1 or 2 hydroxyl groups. This contributes to the construction of an O / W type emulsion made from components (A) to (E) and an isotropic one-liquid phase. From the viewpoint of high detergency, specifically, monohydric alcohols having 2 to 6 carbon atoms such as ethanol, propanol, isopropanol, butanol, isobutanol; ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, Examples thereof include glycols having 2 to 6 carbon atoms such as 1,3-butylene glycol, 1,4-butylene glycol, hexylene glycol and isoprene glycol, and ethylene glycol alkyl ethers such as diethylene glycol monoethyl ether.
Among these, glycols such as 1,3-butylene glycol, isoprene glycol, propylene glycol, and dipropylene glycol are excellent in the construction of an isotropic one-liquid phase having a wide stable region.

  As the component (C), one or more compounds can be used, and it is preferable to contain 10% by mass or more in the total composition from the viewpoint of realizing sufficient detergency. Moreover, it is preferable from a viewpoint of usability to contain in the whole composition 50 mass% or less, 40 mass% or less, especially 30 mass% or less, and also 20 mass% or less. Furthermore, the specific phase state mentioned later can be taken by making content of a component (C) into 10 mass% or more and 50 mass% or less.

(Component (D))
Component (D) used in the present invention is a water-soluble polymer containing (meth) acrylic acid as a structural unit (water-soluble polymer containing a structural unit derived from (meth) acrylic acid), or acryloylmethyltaurate / vinylpyrrolidone copolymer One or two or more components selected from a combination can be used in combination.
The water-soluble polymer containing a structural unit of (meth) acrylic acid is synthesized using (meth) acrylic acid as a monomer, for example, an acrylic acid / alkyl methacrylate copolymer, and acrylic acid and alkyl (C10-10). 30) A cross-linked copolymer of methacrylic acid ester, and examples of commercially available products include PEMULEN TR-1, PEMULEN TR-2, Carbopol ETD2020 (manufactured by Lubrizol Advanced Materials) and the like.
The water-soluble polymer containing the component (D) (meth) acrylic acid as a constituent unit is preferably neutralized by using an alkali agent, all or part of the (meth) acrylic acid unit. The alkali agent to be neutralized is not particularly limited as long as it is an alkali agent that can be usually added to cosmetics. For example, potassium hydroxide, sodium hydroxide, and the like can be used. Alkaline agents can be used alone or in combination of two or more, and 0.01% by mass or more and 5% by mass or less are blended in the total composition, and the pH of the system is 5.5 to 9, particularly 6 to 6. It is preferable to adjust to 8.

  The acryloylmethyl taurate / vinylpyrrolidone copolymer of component (D) is, for example, an acryloyldimethyltaurine ammonium / VP copolymer, such as Aristoflex AVC (manufactured by Clariant), and the like. It is preferable to blend 0.01 mass% or more and 5 mass% or less and adjust the pH of the system to 4 to 8.5, particularly 5 to 7.

The water-soluble polymer containing the component (D) (meth) acrylic acid as a constituent unit of the monomer or the acryloylmethyltaurate / vinylpyrrolidone copolymer can be used alone or in combination of two or more.
In addition, as a component (D), an acrylic-methacrylic acid alkyl copolymer is especially preferable from a viewpoint of making an O / W emulsion composition.

Component (D) is an isotropic one-liquid phase made from components (A), (B), (C), and (E). Form a region. When the dosage form of the cleaning agent is an O / W type emulsion, it is possible to swell dirt around the pores and metabolites from the skin, thereby facilitating removal of the dirt on the surface layer and enhancing the effect of removing plugs. Is.
The content of the component (D) is preferably 0.01% by mass or more and 5% by mass or less in the total composition from the viewpoint of forming the above-described O / W emulsion region. Among these, by setting the content to 0.2% by mass or more, 4% by mass or less, and further 3% by mass or less, the effect of removing plugs is high, and a stable O / W emulsion and an isotropic one-liquid phase are constructed. It is excellent in that it contributes to

(Ingredient (E))
The component (E) water used in the present invention is contained in the total composition in an amount of 10% by mass to 52% by mass. In particular, it is preferably contained in an amount of 20% by mass or more and 50% by mass or less, and further 40% by mass or less. By doing in this way, it contributes to the construction of an O / W type emulsion and an isotropic one liquid phase, and can be washed away without feeling oily.

(Phases comprising components (A) to (E))
The cleaning composition in the present invention is an O / W emulsion. This will be described with reference to a phase diagram of a four-component system of components (A), (B), (C), and (E) (FIG. 1 (a)). The phase diagram shows that three regions of an O / W type emulsion area, an adjacent isotropic one-liquid phase area, and an oil phase area appear in order as the water content decreases. Washing with these three phases is excellent in the effect of dissolving hard solid stains formed in pores, particularly horn plugs, and the effect of removing horn plugs is enhanced.
Here, FIG. 1A is a diagram in the case where 1,3-butylene glycol is used as the component (C) and the mass ratio of water to the component (C) is 3: 1. Component (D) was an acrylic acid / alkyl methacrylate (C10-30) copolymer (PEMULEN TR-1 manufactured by Lubrizol Advanced Materials), which was 0.9% by mass. Furthermore, component (A) is monoisostearic acid diglycerin (HLB8) (Nisshin Oilio Group Cosmol 41V), tetraoleic acid polyoxyethylene sorbite (HLB11) (Kao Corporation's Rhedol 430), monolauric acid (12) polyethylene glycol (HLB14) (Emanon 1112HG manufactured by Kao Corporation), alkyl (C8-16) glucoside (HLB17) (40% by weight aqueous solution) (Mydol 10 manufactured by Kao Corporation), and a mass ratio of 10: 6: 22: 15 This is the case.

  In this invention, as shown to Fig.1 (a), in the state which apply | coated the cleaning composition to skin, a cleaning composition is an O / W type | mold emulsion and a continuous phase consists of an aqueous phase. By washing the skin in the O / W state (fatigue with the skin), dirt around the pores and metabolites from the skin can be swollen, thereby facilitating removal of dirt on the surface layer. Then, massage as needed. During this time, moisture evaporates from the cleaning composition and changes to an isotropic one-liquid phase.

The isotropic one-liquid phase generally includes a micellar solution, but the isotropic one-liquid phase referred to here is a state in which both an aqueous phase and an oil phase are solubilized. Both of these are solubilized so that each of the aqueous phase and the oil phase becomes a continuous phase, and an optically isotropic transparent or translucent liquid phase is called a bicontinuous phase.
A detergent composition comprising an isotropic single liquid phase in which both the water phase and the oil phase are solubilized has high wettability, the oil component and the water component are familiar with the skin, and the agent reaches the fine parts. Thereby, it is possible to cause the cleaning component to act deeper in the pores after the surface layer is removed. Furthermore, if necessary, massage is performed and the skin is familiarized. As a result, when moisture is evaporated from the cleaning composition, the continuous phase becomes an agent composed of an oil phase. This agent is further massaged as necessary to make it fit on the skin. The more solid sebum inside the pores is dissolved by the component (B), and the plugs clogged in the pores can be removed.

  After that, when the user rinses the skin with water, the cleaning composition changes in the order of an isotropic one-liquid phase in which the oil phase, the water phase and the oil phase are continuous phases, and an O / W type emulsion in this order. And easily removed from the skin.

  Thus, the three-component phase diagram of components (A), (B), (C), and (E) has three regions: O / W emulsion, isotropic one-liquid phase, and oil phase. To appear, the mass ratio of component (A) to component (B) is (A) / (B) = 3/7 to 3/1, so that the first O / W type emulsion area appears. In particular, by setting (A) / (B) = 1/1 to 7/3, it is possible to cleanly wash away with no residual feeling while having sufficient detergency of the square plug. By setting (A) / (B) to 3/1 or less, an O / W emulsion can be formed, and by setting (A) / (B) to 3/7 or more, O / A W-type emulsion can be easily formed, and at the same time, it can be changed into an oil phase through an isotropic one liquid phase.

  Further, in the cleaning composition, the mass ratio of the component (C) and the component (E) is (C) / (E) = 1/5 to 5/1, particularly 1/4 to 2/1. Sufficient detergency of the square plug can be realized. By setting (C) / (E) to 5/1 or less, phase separation can be prevented and an O / W emulsion can be formed, and (C) / (E) is set to 1/5 or more. Thus, it is possible to easily change the phase from an O / W emulsion to an isotropic one-liquid phase or an oil phase.

  By the above operation, the cleaning composition of the present embodiment is excellent in the effect of removing hard solid stains formed on pores, in particular, square plugs. Moreover, since the cleaning composition of this embodiment apply | coats and uses for skin and it only needs to wash | clean skin with water after use, it can be used simply. Moreover, there is little irritation compared with the type which sticks a sheet | seat etc. on skin. Furthermore, since the cleaning composition of this embodiment is an O / W emulsion and the continuous phase is an aqueous phase, the skin feel after washing is good.

  In addition, in FIG.1 (b), the phase-phase figure of the composition remove | excluding the component (D) from the cleaning composition of Fig.1 (a) is shown as a comparison. This composition is not an O / W type, but consists of an isotropic one-liquid phase in which each of the aqueous phase and the oil phase is a continuous phase. When the skin is massaged, a phase change occurs and an oil phase is formed. However, the composition shown in FIG. 1 (b) has a low effect of removing horn plugs. This can be understood from evaluation results of Examples and Comparative Examples described later.

The phase diagram shown in FIG. 1 uses 1,3-butylene glycol as the component (C). For example, as shown in FIG. 2, instead of 1,3-butylene glycol. Even when the other component (C) is used, the same phase state diagram can be drawn, and the same effect is obtained.
FIG. 2 (a) is a phase state diagram when diethylene glycol is used as the component (C), and FIG. 2 (b) is a phase state diagram when dipropylene glycol is used as the component (C). The mass ratio of water and the component (C) was 3: 1, and the component (D) was 0.9% by mass.

Further, FIGS. 3A to 3C show phase state diagrams in which the mass ratio of water and the component (C) is changed. From these, it can be seen that the same phase diagram can be drawn, and there are similar effects.
In FIG. 3A, 1,3-butylene glycol is used as the component (C), the mass ratio of water to the component (C) is 3: 1, and the component (D) is 0. It is a phase state figure at the time of setting it as 5 mass%.
FIG. 3B uses dipropylene glycol and 1,3-butylene glycol as the component (C), and the mass ratio of water to the component (C) is 1: 1. D) is a phase state diagram in the case of 0.5 mass%.
FIG. 3 (c) uses dipropylene glycol and 1,3-butylene glycol as the component (C), and the mass ratio of water to the component (C) is 2: 3, and the component (D) These are phase-phase diagrams at 0.5 mass%.
The part surrounded by the dotted circle in FIG. 3B shows the phase change of the composition of Example 10 described later. Moreover, the part enclosed with the dotted circle of FIG.3 (c) has shown the phase change of the composition of Example 11 mentioned later.

  In the present invention, (A) / (B), which is a mass ratio of the component (A) and the component (B), is set to 3/7 to 3/1 as described above. In addition to the content condition of (E), by setting (A) / (B) to 3/7 to 3/1, a detergent composition O / W type emulsion is obtained, and this O / W type This is because the emulsion can subsequently undergo a phase change with an isotropic one-liquid phase and an oil phase. The mass ratio of (A) / (B) is obtained from these phase phase diagrams by creating each phase diagram as shown in FIGS.

  The head part exposed on the skin surface of the horn plug is intricately intertwined with dirt around the pores and metabolites from the skin. This portion of dirt is harder to remove than other skin surface stains and hinders removal of the square plug. Further, the body part of the horn plug present inside the pores is hard and solid due to sebum inside the pores and metabolites from the skin, and the agent is difficult to remove because it is difficult to enter the pores. The cleaning composition of the present invention is suitable for removal of dirt on the head and body of the square plug by phase change in the order of O / W phase, isotropic one liquid phase, and oil phase during cleaning. Since it can be washed sequentially by phase, it is possible to easily remove hard solid pore stains, especially square plugs, which could only be removed with the conventional type of attaching a sheet or the like to the skin. Furthermore, when the skin is rinsed with water, the cleaning composition changes in the order of the oil phase, the isotropic one-liquid phase, and the O / W phase, and finally the continuous phase becomes an aqueous phase and is removed from the skin. , The skin feel after washing is good.

(Other ingredients)
The cleaning composition of the present invention further includes components usually used in cleaning agents, thickeners, bactericides, humectants, high-viscosity oils, wetting agents, coloring agents, preservatives, feel improvers, and fragrances. In addition, antioxidants, various extracts, and the like can be appropriately contained.

  In addition, the cleaning composition of this embodiment does not contain much ionic surfactant from the viewpoint of construction of a stable isotropic one-liquid phase, and is preferably less than 1.0%. Further, it is preferably 0.1% or less, and particularly preferably not contained.

  The detergent composition of the present invention can be used as a facial cleanser, makeup remover, body cleansing agent, massage agent, and keratin plug remover, and is particularly preferably used as a facial cleanser and keratin plug remover. It is preferable to use it as an agent.

  The cleaning composition of the present invention can be used for skin having pores with clogged plugs as use sites. As an example, it can be used for the pore part which is worrisome such as the whole body, the whole face, and the circumference (T zone) from the forehead to the nose. The removal of the horn plugs can be expected to improve pore conspicuousness, roughness, improve stickiness, and prevent acne.

  The cleaning composition of the present invention comprises a compound having 2 or more and 6 or less carbon atoms and a hydroxyl group of 1 or 2 (component (C)), a specific water-soluble polymer (component (D)), and water. (Component (E)) is mixed uniformly, neutralized by adding an alkali agent such as sodium hydroxide or potassium hydroxide, and then nonionic surfactant (component (A)), oil agent (component (B )) Is added. In the case of containing a raw material that is solid at normal temperature, it can be produced by uniformly mixing all components after heating and melting or dissolving in other components.

  It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.

Next, examples of the present invention will be described.
(Examples 1-20, Comparative Examples 1-7)

(Production method)
(Examples 1-20)
A cleaning composition having the composition shown in Table 1 was produced. The unit of each component in Table 1 is mass%. Specifically, moisturizers (sorbitol, glycerin) are added to components (C), (D), and (E) as needed, and polypropylene glycol and hydrogenated polyisobutene are added as necessary, and all components are stirred. Were mixed uniformly. The mixture was neutralized by adding potassium hydroxide. Next, a cleaning composition was obtained by uniformly dispersing the components (A), (B) and the fragrance.

When there was a solid component at room temperature or when a gel component was produced by mixing at room temperature, the mixture was heated at 70 to 75 ° C. with stirring to dissolve it. After fully dissolving, it returned to room temperature and obtained the cleaning composition.
(Comparative Examples 1-7)
A cleaning composition having the composition shown in Table 2 was produced. The unit of each component in Table 2 is mass%. Components (C), (D), and (E) are mixed (components (C) and (D) are added as necessary), and further, moisturizers (sorbitol and glycerin) are necessary. Depending on the situation, liquid paraffin was added and stirred to mix all components uniformly. The mixture was neutralized by adding potassium hydroxide. Then, a cleaning composition was obtained by uniformly dispersing components (A) and (B) (if necessary) and a fragrance.

About the detergent composition obtained by each Example and the comparative example, the phase state was confirmed by observation of an external appearance, observation with an optical polarization microscope, preparation of a phase state diagram, measurement of the self-diffusion coefficient by NMR, etc. The results are also shown in Table 1.
In addition, the value of the viscosity described in Tables 1 to 3 is measured with a BM viscometer (manufactured by Tokimec, measurement conditions: rotor No. 1, 60 rpm, 30 ° C.).

(Evaluation method)
(1) Square plug removal effect:
A test was conducted to wash the nose with the cleaning compositions prepared in the Examples and Comparative Examples using 5 healthy panels, and the number of horn plugs present in the nose before and after washing was measured. That is, 1 g of the cleaning composition prepared in Examples and Comparative Examples was applied only to the nose portion, massaged for 30 seconds, and then rinsed with water for 1 minute.
Next, the angular plug removal rate was determined and evaluated by (Equation 1).
Corner plug removal rate = 100− (number of horn plugs present in 1 cm ² on the nose after use) / (number of horn plugs present in 1 cm ² on the nose before use) × 100 (Formula 1)
(2) Washed-up skin feel With 8 female evaluation panels, sensory evaluation was performed on the washed-up skin feel according to the following criteria, and the total score of 8 people was obtained. The results are also shown in Table 1.
3: I felt that the skin was moist and moist.
2: I felt that it was slightly sticky or the skin was somewhat bulky.
1: I felt that there was much stickiness or the skin became bulky.

From the results shown in Table 1, the cleaning compositions of Examples 1 to 20 were excellent cleaning compositions satisfying both the effect of removing the plugs and the feeling of the washed-up skin.
Moreover, since the cleaning composition of Examples 1-20 was applied to skin, it could be used simply. Moreover, since it is what wash | cleans after apply | coating to skin, compared with what sticks a sheet agent on skin and peels, it was a thing with little irritation. On the other hand, in the comparative example, none satisfying any evaluation item was obtained. In the cleaning composition of Comparative Example 2, the surfactant is solubilized in the aqueous phase, and the phase does not change. In the cleaning compositions of Comparative Examples 5 and 7, the continuous phase is an isotropic one-liquid phase, but during the massage, the O / W emulsion, the isotropic one-liquid phase, and the oil phase change in this order. Therefore, as shown in Table 2, it can be seen that the effect of removing the plug is low.

(Example 21)
A cleaning composition having the formulation shown in Table 3 was prepared. The unit of each component in Table 3 is mass%. Specifically, components (C), (D), and (E) were mixed and stirred to uniformly mix all components. The mixture was neutralized by adding potassium hydroxide. Next, a cleaning composition was obtained by uniformly dispersing the components (A), (B) and the fragrance. About the obtained cleaning composition, the phase state was confirmed by observation of an external appearance, observation with an optical polarization microscope, preparation of a phase diagram, measurement of a self-diffusion coefficient by NMR, and the like. The resulting cleaning composition was an O / W type emulsion.

Example 21 was excellent in the effect of removing horn plugs and had a moist and moist feeling on the washed-out skin.
In addition, when the cleaning composition of Examples 1 to 21 of Examples 1 to 21 in which the continuous phase is an aqueous phase is applied to the skin, moisture is evaporated from this agent, and isotropic one-liquid phase (bicontinuous) It turns out that it becomes the agent which consists of an asphalt phase. Further, when moisture evaporates from the agent composed of an isotropic one-liquid phase, the continuous phase changes to the oil phase, and the continuous phase becomes the agent composed of the oil phase. Furthermore, when the skin is rinsed with water, the detergent composition changes in the order of the oil phase, the isotropic one-liquid phase, and the O / W phase, and finally the continuous phase becomes the aqueous phase.

Claims (4)

The following components (A) to (E):
(A) It is composed of a mixed surfactant obtained by mixing one kind of nonionic surfactant or two or more kinds of nonionic surfactants,
The nonionic surfactant is polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbit fatty acid ester, (poly) alkyl glyceryl ether, polyoxyethylene alkyl ether, sucrose fatty acid ester and One or more selected from alkylpolyglucosides,
One nonionic surfactant or mixed surfactant has a HLB of 10 or more and 15 or less. 5% by mass or more and 40 % by mass or less (B) The viscosity at 30 ° C. is 15 mPa · s or less oil agent 8% by mass or more and 39% by mass or less (C) Compound having 2 or more and 6 or less carbon atoms and having 1 or 2 hydroxyl groups 10% by mass or more and 50% by mass or less (D) (Meta) A water-soluble polymer containing acrylic acid as a structural unit, or a polymer selected from an acryloylmethyl taurate / vinylpyrrolidone copolymer 0.01% by mass to 5% by mass (E) water 10% by mass to 52% by mass Including
(A) / (B) weight ratio represented by the 3/7 or more state, and are 7/3 or less,
(C) / mass ratio represented by (E) is less than 1/5, 2/1 or less der Ru detergent composition of an O / W type emulsion. The cleaning composition according to claim 1 , wherein the water-soluble polymer (D) is an acrylic acid / alkyl methacrylate copolymer. The cleaning composition according to claim 1 or 2 , wherein (C) is a glycol. The cleaning composition according to any one of claims 1 to 3, comprising 30% by mass or more of isoparaffin in the component (B).

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