JP6006076B2 - Semi-solid skin cleansing composition - Google Patents

Description

The present invention relates to a semi-solid skin cleanser, and more specifically, by adding a higher fatty acid salt and a polyether-modified silicone, a high makeup-removing effect is imparted, and a smooth wash-off and soiling are provided. High detergency can be obtained by preventing reattachment. In addition, when blended with polyether-modified silicone, the foam quality is enhanced when the product is used, but especially when the soap is made by neutralizing the fatty acid, it has excellent defoaming properties during production. Heating time at the time of manufacture can be reduced, and an excellent product quality skin cleanser that is easy to manufacture and stable can be obtained.

In daily skin care, it is very important to clean and cleanse the skin. Excessive sebum and skin stains, and the accumulation of greasy residues such as everyday cosmetics and makeup products on the skin can lead to rough skin and formation of pimples, so it is necessary to remove these stains with a cleaning agent It is desirable that the process be as easy and efficient as possible.

In formulating cleansing facial cleansers, polyhydric alcohols and nonionic surfactants are generally used to give makeup-removing effects to detergents mainly composed of high-foaming and high-cleansing fatty acid potassium salts. Add agent, oil agent. However, it is well known that when a large amount of a nonionic surfactant or oil is blended for a high makeup removal effect, foaming becomes weak due to their defoaming effect.
In addition, in a cleaning agent having a cleansing effect, it is a well-known practice to use a surfactant having a high foaming property in order to enhance the cleaning power and improve the feeling of use.
For example, Patent Document 1 discloses a creamy face wash combining a carbobetaine-type amphoteric surfactant with a higher fatty acid salt and an anionic surfactant, and Patent Document 2 discloses an acyl amino acid salt, an acylmethyl taurine salt and a polyhydric alcohol. Cleansing composition combining acyl lactylate and acylmethyl taurate salt, alkyl ether sulfate, etc. Patent Document 3 is a cleansing composition combining acyl amino acid salt and ether carboxylate Agent composition, Patent Document 5 discloses a low-irritant detergent composition in which an amidopropyl betaine having a specific alkyl chain and an ether carboxylate are combined. It is shown. However, a detergent containing a large amount of a highly foaming surfactant is prone to the phenomenon of air smearing due to the mixing of external force during production and the reaction of fatty acid soap with a large amount of air at high temperatures. In many cases, this causes a quality defect, which is a manufacturing problem.

If air stains occur, the specific gravity and viscosity are greatly affected, and not only filling and quality control after production become difficult, but there is also a concern about appearance defects and influence on the feeling of use. In order to solve these problems, it is required to completely deaerate before becoming a normal product.
In order to solve the air stain of this product, in the case of other than the cleaning agent, for example, at the time of production of the emulsion, a method of eliminating the air stain by introducing an antifoaming agent at a high temperature is taken. .
However, since foaming detergents require rich foaming, foam quality, and foam persistence, the same method cannot be taken. Also, in the case of liquid compositions among foaming detergents, there is a tendency for air to gradually escape in a stationary state because it is fluid after production, but in the case of a semi-solid composition, In this process, since the fatty acid salt crystallizes and solidifies, it is almost impossible to remove air after production.
Therefore, conventionally, a method called negative pressure defoaming has been adopted when producing a semi-solid skin cleansing material having foaming properties. This utilizes the fact that bubbles are likely to become unstable when fluid at high temperatures, and by reducing the pressure, the volume of air inside the bubbles is increased, and thinning the membrane makes it easier to cause bubble breakage. It is a defoaming operation. However, in the case of a formulation with very high foaming, this process may take a long time, and the bulk is exposed to high temperatures for a long time. Wake up.

In recent years, as a trend, there is a tendency that a richer bubble performance is required than before. In order to improve the foam performance, methods such as adding a lot of highly foaming surfactants as foaming agents and foam increasing agents, or blending water-soluble polymers as foam stabilizers are taken. ing.
For example, Patent Document 6 discloses a cleaning composition containing a secondary amide type N-acylamino acid salt and a cationized polymer, and the composition is excellent in foamability, foam quality, and foam persistence. It has been shown that there is less irritation. Patent Document 7 discloses a cleaning composition containing an N-acyl-N-methyltaurine salt and a polysaccharide polymer, and the composition has low foaming and high foaming properties and good foam quality. It is shown that the feeling of use and usability are good. Patent Document 8 discloses a cleaning composition containing polyquaternium 39. In the composition, polyquaternium 39 exerts an effect of preventing defoaming, so that once formed foam has its form for a long time. It has been shown that, in order to maintain, it is easier to form a mass of soft and bulky bubbles.

Among these, the increase in the amount of the surfactant is a method that can be taken relatively easily except when the stability of the preparation is impaired, and can significantly improve the foaming power.
In addition, the blending of the water-soluble polymer stabilizes the arrangement of the surfactant at the gas-liquid interface of the foam, and the foam quality, foaming and foam sustainability can be improved in total without increasing the surfactant. In addition, since the stability and safety of the preparation are often improved, it has recently become one of the major components of semi-solid skin cleansing materials.
However, the more you try to improve the foam performance with these techniques, the stronger the foaming power of the cleaning material and the more stable the foam. Defoaming becomes very difficult. Therefore, it has been a big problem both in terms of formulation development and establishment of the manufacturing method.

JP 2011-213893 A JP-A-62-226921 JP-A-6-40850 JP-A-6-25695 JP-A-8-183993 JP-A-5-156299 Japanese Patent No. 4916626 JP 2005-162703 A

An object of the present invention is to provide a semi-solid skin cleansing agent that can easily eliminate air stains without taking a special manufacturing method or process while being rich in foaming.
That is, since the cleaning agent is a preparation in which the foam performance is regarded as the most important, it is not possible to add an antifoaming agent that is usually used for extracting air during the production of the emulsion. Moreover, in the case of a semi-solid skin cleanser composition, there is almost no air bleed after the production, so that air contamination during production is a big problem. In addition, in recent years, in order to improve the performance of the foam, the blending of a surfactant having higher foaming power and the blending of a water-soluble polymer for enhancing the sustainability of the foam have become general-purpose technologies. For this reason, the problem of air smearing at the time of manufacture is becoming more serious, and a technique for solving them is desired.

As a result of intensive studies to solve the above problems, the present inventors have enhanced foaming during use by blending a specific polyether-modified silicone with a semi-solid skin cleanser containing a higher fatty acid salt. In addition, the present invention has found that it can provide a high makeup-removing effect, and even if it contains a large amount of a highly foaming surfactant and a water-soluble polymer, air smearing during production is easily eliminated. It came to complete.

Accordingly, the present invention provides the following inventions.
(A) Highly fatty acid salt (B) Semi-solid skin cleansing composition characterized by containing polyether modified silicone characterized by 3-12 HLB.

According to the present invention, it is possible to provide a semi-solid skin cleansing composition that can easily eliminate air smearing during production, and is rich in foaming and highly effective in removing makeup when used.

The component (A) of the present invention is a higher fatty acid salt and can be used alone or in combination of two or more. By using a fatty acid salt as a cleaning base material, the foaming and rinsing feeling are good, and at the same time, in combination with the specific polyether-modified silicone of component (B), smooth and smooth skin after cleaning You can get a feel.

(A) The higher 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. , Fatty acid salts 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 etc. Can be used. Among these, from the point of foaming, C8-C18, More preferably, a C12-C18 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 fatty acid salt, fatty acid salt itself may be mix | blended and a fatty acid and an alkali may be neutralized and used at the time of manufacture.

(A) As for the compounding quantity of a higher fatty acid salt, 2-50 mass% is preferable in a semi-solid skin cleansing composition, More preferably, it is 10-45 mass%. In this blending amount, rich foaming unique to fatty acid salts and a refreshing feeling after use can be imparted. However, if the blending amount is less than 2% by mass, a sufficient foam amount may not be obtained at the time of washing. On the other hand, if the blending amount exceeds 50% by mass, foaming may be delayed, rinsing may feel slippery, or the degreasing power may become strong, causing irritation such as drying on the skin. In addition, excessive fatty acid salt precipitation is likely to occur under low temperature conditions, and there is a great concern that it will become hard and cannot be removed from the container.

The semi-solid skin cleanser composition of the present invention has a fast foaming property by adjusting the proportion of laurate to 5% by mass or more, more preferably 5 to 25% by mass in the fatty acid salt composition of component (A). The good foaming can be further improved.
On the other hand, if the proportion of laurate in the fatty acid salt exceeds 80% by mass, the stability of the composition may be impaired, and people with sensitive skin may feel irritation to the skin during and after washing. is there.
Fatty acid salts other than laurate are not particularly limited. However, since the foam quality at the time of washing is improved, the fatty acid salt having 14 or more carbon atoms is added in an amount of 20 to 70 mass in the composition of (A) fatty acid salt. %, More preferably 30 to 60% by mass.

(B) The polyether-modified silicone is a silicone surfactant obtained by polyetherizing a part of the alkyl group of silicone, and can be used alone or in combination of two or more. When blended with component (B), the composition is rich in foaming when used compared to a composition blended with a water-insoluble oil such as dimethyl silicone, although it is superior in air removal during production. Can be obtained. The superior air release during production is that the molecular movement becomes intense at high temperatures, so the bond between the modifying group polyether and water molecules is broken, and the main chain silicone is insoluble in water and oil. This is presumed to be a mechanism that facilitates bubble breakage by entering the surfactant array on the foam surface and destabilizing the foam. On the other hand, the excellent foaming at the time of use is that the polyether is in a sufficiently bonded state with water molecules at low temperature, so the hydrophilicity and lipophilicity of the polyether function as a surfactant and the main chain silicone It is presumed that this is due to a mechanism that not only destabilizes the foam and does not destabilize the foam but also exhibits an improvement effect such as foam quality.
In addition, blending with component (B) improves familiarity with highly water-resistant makeup blended with silicone, enhances the makeup-removing effect, and prevents skin roughness after use. It will greatly improve.

(B) As polyether modified silicone, it is preferable that HLB is 3-12, More preferably, it is 4.5-11. Within this range, it is possible to obtain a semi-solid skin cleansing composition that is excellent in air removal during production and rich in foaming during use. However, if the HLB is less than 3, the lipophilicity is too high and the foaming during use may worsen. On the other hand, if the HLB exceeds 12, the foaming during use is rich, but air is lost during production. May get worse.

Among components (B), those having particularly high effects include dimethicone copolyol, bis (PEG / PPG-16 / 16) PEG / PPG-16 / 16 dimethicone, and PEG / PPG-20 / 20 dimethicone. Specific examples of bis (PEG / PPG-16 / 16) PEG / PPG-16 / 16 dimethicone include ABIL CARE 85 (trade name: manufactured by Degussa), specific examples of PEG / PPG-20 / 20 dimethicone. Is SH3749 (trade name: Toray Dow Corning).

(B) 0.01-5 mass% is preferable in a semi-solid skin cleansing composition, as for the compounding quantity of a component, More preferably, it is 0.1-3 mass%, More preferably, it is 0.1-2 mass%. . When the amount of component (B) is less than 0.01% by mass, a smooth skin feel after use cannot be obtained sufficiently. On the other hand, when the blending amount exceeds 5% by mass, defoaming at the time of production is completed in a short time, but foaming at the time of use may be deteriorated, or there may be a strong feeling of luster when rinsing.

Usually, a foaming detergent may contain a water-soluble polymer to improve foam quality or maintain foam. On the other hand, when the water-soluble polymer is blended, the air escape of the preparation is significantly worsened.
However, in the present invention, air can be smoothly extracted even if a water-soluble polymer is blended.
(C) The water-soluble polymer is not particularly limited as long as it is used in ordinary detergents, and is selected from anionic water-soluble polymers, cationic water-soluble polymers, and nonionic water-soluble polymers. 1 type can be used individually or in combination of 2 or more types as appropriate. Examples of the anionic water-soluble polymer include acrylic acid alkyl methacrylate copolymers, carboxymethyl cellulose, and carboxy vinyl polymers. Examples of the cationic water-soluble polymer include synthetic polymers such as cationized cellulose, cationized guar gum, cationized starch, polyquaternium-7, polyquaternium-39, and polyquaternium-51. Nonionic water-soluble polymers include cellulose polymer compounds such as methylcellulose, ethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, thickening polysaccharides such as xanthan gum, guar gum, carrageenan, hydrolyzed hydrogenated starch, and ethylene glycol. There is polyethylene glycol which is a polymer, and for polyethylene glycol, PEG-6, PEG-20, PEG-32, PEG-75, PEG-400, PEG-2M, PEG-5M, PEG-7M, PEG-9M, etc. are suitable Used for.

(C) Although the compounding quantity of a component is not prescribed | regulated in particular, 0.01-5 mass% is preferable in a semi-solid skin cleansing composition, More preferably, it is 0.02-3 mass%. If the blending amount exceeds 5% by mass, the luster may be strongly felt during rinsing.

In the semi-solid skin cleansing composition of the present invention, other appropriately selected other components can be used alone or in combination of two or more as long as the effects of the present invention are not impaired.
As other components, a polyol is preferably blended, and one kind can be used alone, or two or more kinds can be used in appropriate combination. 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 in the semisolid skin cleansing composition. Within this range, a composition having excellent stability and usability can be obtained. When the blending amount of the polyol is less than 10% by mass, precipitation from the fatty acid salt may occur at a low temperature and the contents may become very hard. Moreover, even if it mix | blends exceeding 30 mass%, low temperature stability does not improve any more drastically, and it may become easy to raise | generate water separation etc. in room temperature-high temperature area | region.

  In addition to polyols, anionic surfactants, amphoteric surfactants, surfactants such as nonionic surfactants, 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, metal sequestering agents, ultraviolet absorbers, animal and plant extracts or their derivatives, dyes, fragrances, pigments Inorganic powders, clay minerals, water-soluble polymers, water-insoluble polymer powders such as nylon and polyethylene, and the like.

Among these, surfactants such as anionic surfactants, amphoteric surfactants and nonionic surfactants, and water-soluble polymers, as described in the background art, are used for foaming semi-solid skin cleansing compositions. -It is a component mix | blended in order to improve foam quality and the amount of foam. Mixing these components within a range that does not impair the stability of the preparation has become a general-purpose technique in the development of prescriptions for recent semi-solid skin cleansing agents.

The anionic surfactant is not particularly limited as long as it is used for a normal detergent, and examples thereof 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 surfactant include sulfosuccinic acid type, taurate type, isethionate type and α-sulfonic acid type, and examples thereof include sodium N-cocoylmethyl taurate and sodium polyoxyethylene alkylsulfosuccinate. 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. Carboxybetaine surfactants include lauryldimethylaminoacetic acid betaine, coconut oil fatty acid amidopropylbetaine, and sulfobetaine surfactants include coconut oil fatty acid dimethylsulfopropylbetaine, lauryldimethylaminohydroxysulfobetaine, and the like. 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 thereof 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.

The semi-solid skin cleanser composition of the present invention is preferably a smooth cream-like composition generally called cleansing foam. As a physical property, it is a solid state with a low yield value. Cleansing foam is a soap whose main component is an alkali neutralized fatty acid, but unlike so-called solid soap, it has a high water content and is characterized by being deformed with a weak force. Therefore, when it is used by mixing with foamed water in the palm and using it, it is easy to dissolve in water at a high concentration, and a feature is that rich foaming can be easily obtained. Moreover, if the property before coloring is creamy, it may be colored when it becomes a product.

The semi-solid skin cleanser composition of the present invention can be housed in conventional containers used in pasty, creamy, and gel-like products. Examples of containers include tubes and jars. The material of the container can be selected from any resin used in semi-solid product containers such as polyethylene, polypropylene, polyethylene terephthalate, laminated films of aluminum and resin, glass, metal, and the like.

  The semi-solid skin cleansing composition of the present invention has a viscosity of 30 ° C. using a Rion viscometer (Rion Co., Ltd.) 2, 10 Pa · s or more and 50 Pa · s or less are preferable under the condition after 10 seconds, and more preferably in the range of 10 Pa · s or more and 35 Pa · s or less. If the viscosity under this condition is less than 10 mPa · s, the viscosity is significantly reduced at high temperature, fluidity is generated, and the usability may be greatly adversely affected by dripping from the container when used in a bathroom or the like. On the other hand, if the viscosity exceeds 50 Pa · s, foaming may be delayed, or it may become harder at low temperatures and cannot be removed from the container.

  The pH of the semi-solid skin cleanser composition of the present invention may be in the range of 8 to 11 when a 10% aqueous solution is measured at 20 ° C. with a glass electrode type pH meter (HORIBA, F-51, etc.). More preferably, it is the range of 9-11. When the pH is lower than 8, a very hard composition can be formed and the usability may be inferior. On the other hand, when the pH is higher than 11, skin irritation may become stronger.

In the present invention, “water-soluble” is defined by obtaining a uniform solution 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.

There is no restriction | limiting in particular as a manufacturing method of the semi-solid skin cleaning composition of this invention except taking a heating process, According to the objective, it can select suitably. It can be obtained by mixing the above components (A) to (B), optional components, and water (the remainder blended so that the total amount of the semi-solid skin cleanser composition is 100% by mass). In order to sufficiently obtain the effect of air removal, it is necessary to heat the whole preparation to 40 to 50 ° C. or higher, which has fluidity. Moreover, there is no restriction | limiting in particular as an apparatus which prepares a semi-solid 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. A stirrer equipped with is preferred.

EXAMPLES The present invention will be specifically described below with reference to examples, but the technical scope of the present invention is not limited by these examples. A compounding quantity is the mass% with respect to the composition whole quantity.

First, the evaluation method used in this example will be described.

[Evaluation method of air leakage]
When preparing a semi-solid skin cleansing composition, the air is most likely to be smeared at the time of saponification, when the foaming surfactant is added, and after the water-soluble polymer is added. In particular, if a water-soluble polymer is present during saponification, the degree of air smearing becomes worse, and therefore, there is often a production method in which the water-soluble polymer is introduced at the time of cooling after saponification. However, in the present invention, since an excellent air removal effect can be obtained regardless of the presence or absence of the water-soluble polymer, this test was performed in a state where all raw materials to be blended were mixed.
First, A to G were put into a beaker and dissolved by heating with stirring. After confirming that all raw materials were dissolved and mixed at 80 ° C. or higher, saponification was performed, and then air cooling was performed to 80 ° C. Then, high-speed stirring was performed 200 times while maintaining the temperature of the composition in an 80 ° C. thermostatic bath, and air was intentionally caused to stand, and then left in the thermostatic bath and taken out after 2 minutes. Take the ratio of the air stagnation part in the beaker at that time and the transparent liquid part from which air escaped,
The smaller the ratio, the better the air escape. Tables 1 to 3 show the test results.
The height of the air streaks in the beaker at that time was (a), and the transparent liquid part from which the air escaped was (b).
The value obtained by dividing (a) by (b) was 0 or more and less than 1, ◎, 1 or more and less than 3, and ○ or 3 or more.

[Evaluation method of foaming]
1 g of the preparation was taken and bubbled for 2 minutes while adding 9 g of water in 3 portions, and then the entire amount of the foam was sampled on a plastic board. The length (cm), width (cm), and height (cm) of the foam were measured, and the product was calculated as an index of good foaming.
Judgment was as follows: ：: product 120 or more, ◯: product 70 or more and less than 120, x: product 70 or less.

As is clear from the results of Tables 1 to 3, the semi-solid skin cleansing compositions of the examples were excellent in foaming and had good results with less air bubbles during production. Each of these items was inferior.

<Example 13>
Compounding ingredients Compounding amount (% by mass)
Potassium laurate 6.35
Potassium myristate 14.15
Potassium palmitate 3.0
Potassium stearate 9.2
Bis (PEG / PPG-16 / 16) PEG / PPG-16 / 16 dimethicone 0.15
(* HLB 10)
Polyquaternium-7 0.6
Hydrolyzed hydrogenated starch 0.73
PEG-6 0.2
PEG-32 0.5
Glucosyl trehalose 1.2
1.3-Butylene glycol 2.0
Diglycerin 18.0
Glycerin 1.0
Sorbitol 1.5
Polyglyceryl distearate-3 methyl glucose 1.0
Polyglyceryl laurate-10 4.3
Alkyl (8-16) glucoside 15.0
Lauroyl silk amino acid potassium 0.15
Purified water remaining total 100.0

Each component was mixed and dissolved by heating with stirring. After confirming that all raw materials are dissolved and mixed at 80 ° C. or higher, saponification is performed, and then cooled and taken out.
The present example was excellent in foaming and had good results with less air bubbles during production.

<Example 14>
Compounding ingredients Compounding amount (% by mass)
Potassium laurate 8.0
Potassium myristate 8.0
Potassium palmitate 3.8
Potassium stearate 12.8
Palm oil fatty acid potassium 5.20
PEG / PPG-20 / 20 dimethicone (HLB 8) 0.20
Polyquaternium-39 0.3
Polyquaternium-7 0.3
Hydrolyzed hydrogenated starch 0.6
PEG-9 Diglyceryl 3.5
Glycerin 7.0
Dipropylene glycol 7.0
PEG-20 glyceryl triisostearate 4.0
Lauryl hydroxysultain 2.0
Lauroylmethylalanine Na 6.75
Purified water remaining total 100.0

Each component was mixed and dissolved by heating with stirring. After confirming that all raw materials are dissolved and mixed at 80 ° C. or higher, saponification is performed, and then cooled and taken out.
The present example was excellent in foaming and had good results with less air bubbles during production.

<Example 15>
Compounding ingredients Compounding amount (% by mass)
Potassium laurate 5.0
Potassium myristate 14.6
Potassium stearate 15.3
Palm fatty acid potassium 3.8
Bis (PEG / PPG-16 / 16) PEG / PPG-16 / 16 Dimethicone 1.0
(* HLB10)
Hydroxypropyl cellulose 0.1
Alkyl (8-16) glucoside 5.0
Polyoxyethylene hydrogenated castor oil 1.0
Dipropylene glycol 17.0
Glycerin 2.0
Sorbitol 4.0
Sequestering agent appropriate amount purified water remaining total 100.0

Each component was mixed and dissolved by heating with stirring. After confirming that all raw materials are dissolved and mixed at 80 ° C. or higher, saponification is performed, and then cooled and taken out.
The present example was excellent in foaming and had good results with less air bubbles during production.

<Example 16>
Compounding ingredients Compounding amount (% by mass)
Potassium laurate 3.0
Potassium myristate 14.6
Potassium stearate 15.3
Palm fatty acid potassium 5.8
Bis (PEG / PPG-16 / 16) PEG / PPG-16 / 16 Dimethicone 1.0
(* HLB10)
Xanthan gum 0.1
Alkyl (8-16) glucoside 5.0
Polyoxyethylene hydrogenated castor oil 1.0
Dipropylene glycol 17.0
Glycerin 2.0
Sorbitol 4.0
Sequestering agent appropriate amount purified water remaining total 100.0

<Example 17>
Compounding ingredients Compounding amount (% by mass)
Potassium myristate 14.6
Potassium stearate 15.3
Palm fatty acid potassium 8.8
Bis (PEG / PPG-16 / 16) PEG / PPG-16 / 16 Dimethicone 1.0
(* HLB10)
Alkyl (8-16) glucoside 5.0
Polyoxyethylene hydrogenated castor oil 1.0
Dipropylene glycol 17.0
Glycerin 2.0
Sorbitol 4.0
Sequestering agent appropriate amount purified water remaining total 100.0

Each component was mixed and dissolved by heating with stirring. After confirming that all raw materials are dissolved and mixed at 80 ° C. or higher, saponification is performed, and then cooled and taken out.
The present example was excellent in foaming and had good results with less air bubbles during production.

An object of the present invention is to provide a semi-solid skin cleanser that can easily eliminate air stains without taking a special manufacturing method or process, despite its rich foaming.

Claims (2)

(A) Higher fatty acid salt having 8 to 22 carbon atoms and a counter ion of potassium (B) Bis (PEG / PPG-20 / 5) PEG / PPG-20 / 5 Dimethicone, Bis (PEG / PPG-16 / 16) One or more selected from PEG / PPG-16 / 16 dimethicone and HLB 4.5-11
(C) 0.02 to 3% by mass of polyethylene glycol
A semi-solid skin cleansing composition comprising:
The semisolid skin cleansing composition according to claim 1, comprising 0.1 to 2% by mass of the component (B).