JP2013170145A - Skin cosmetic composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cosmetic composition which takes the form of foam, is easily applicable to a wide area such as the body, and not sticky, and leaves the skin moist.SOLUTION: This composition includes (A) a specific water-soluble humectant, (B) a nonionic surfactant which is composed of an ester compound having not less than one polyol residue and not less than two 12-22C fatty acid residues in the molecule and has an HLB of 8-16 and, (C) a nonionic surfactant which is composed of an ester compound having one 12-22C fatty acid residue in the molecule and has an HLB of 12-20, and (D) water. The ratio of component (B) to component (C) by mass in the composition is (B):(C)=8:2-2:8. The total amount of component (B) and component (C) (B)+(C) is 0.1-10 mass%. The skin cosmetic composition is contained in a foam discharge container and used.

Description

  The present invention relates to a skin cosmetic composition.

  In general, an emulsion or cream emulsion is used to care for a large area such as the body. However, these preparations do not have sufficient spread over the area that the user wants to apply. As a result, the user repeats the operation of spreading the agent for the hand many times. In addition, creamy emulsions have a strong oily feeling and may be worried about stickiness after application. On the other hand, lotion-type solubilized preparations are suitable for giving fresh moisture, but because the viscosity is low, the amount that can be taken at one time is small, and it can be applied to a large area by hand. It is necessary to repeat the act of spreading.

  In response to such a problem, Patent Document 1 (Japanese Patent Laid-Open No. 2001-48742) proposes a cosmetic material that has light elongation and spread by making the oil and fat into a foam.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 10-273415) discloses a technology that achieves both good foaming and foam disappearance by putting a liquid containing a surfactant and a polymer into a discharge container to form a foam. ing.

JP 2001-48742 A JP-A-10-273415

  However, since the technique described in Patent Document 1 described above has a small amount of surfactant, the use of the former container is unsuitable, and it is considered that a technique centering on foamed aerosol products is described. Since aerosol products use a propellant, there may be restrictions on handling and disposal. Moreover, since many fats and oils are mix | blended with the cosmetics of patent document 1, an oily feeling is strong and the stain | pollution | contamination of the clothes after applying is worrisome for a user.

  Moreover, in the technique described in Patent Document 2, when an operation of sandwiching and expanding a bubble taken in both hands is performed, the bubble is crushed, and it is difficult to apply it over a large area in the actual application scene. In addition, there is a problem that the polymer is slippery.

  Therefore, the present inventor can take the composition in a state of increasing the volume by foaming a composition with little stickiness and a fresh feeling of use, so that it does not collapse even if sandwiching the foam with both hands We thought that if we were able to maintain the shape-retaining property of foam, we could easily spread it over a large area and save the time and effort to adapt it many times. Furthermore, it was considered that a thin and uniform coating could give a moist feel without stickiness.

  That is, the present invention relates to a skin cosmetic composition that can be easily applied to a large area such as a body in a foam shape, and can provide a odor that can prevent stickiness.

According to the present invention,
The following components (A) to (D):
(A) One or two selected from the group consisting of a polyol having two or more hydroxyl groups in an alkyl group having 3 to 6 carbon atoms and a sugar or sugar alcohol having two or more hydroxyl groups in a sugar skeleton of a monosaccharide or disaccharide More than water-soluble humectants,
(B) a nonionic surfactant of HLB 8-16 composed of an ester compound having one or more polyol residues and two or more fatty acid residues having 12 to 22 carbon atoms in one molecule;
(C) a nonionic surfactant of HLB 12-20 composed of an ester compound having one fatty acid residue having 12 to 22 carbon atoms in one molecule,
(D) a composition comprising water,
The ratio of the component (B) and the component (C) in the composition is (B) :( C) = 8: 2 to 2: 8 by mass ratio,
In the composition, the total amount (B) + (C) of component (B) and component (C) is 0.1 to 10% by mass,
There is provided a skin cosmetic composition for use in a foam discharge container.
Moreover, according to this invention, the usage method of the skin cosmetics which discharges the skin cosmetics containing the skin cosmetic composition in the said invention from a former container, and apply | coats to skin is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the skin cosmetic composition which can be easily apply | coated to large areas, such as a body in foam shape, and can give the moisture which can suppress stickiness can be obtained.

(Ingredient (A))
Component (A) is composed of a polyol having two or more hydroxyl groups on an alkyl group having 3 to 6 carbon atoms (C3 to C6), and a sugar or sugar alcohol having two or more hydroxyl groups on a monosaccharide or disaccharide sugar skeleton. One or more water-soluble humectants selected from the group.
The component (A) has a function of giving moisture to the skin.

Specific examples of the component (A) include, for example, ethylene glycol, dipropylene glycol, diethylene glycol, propylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,3-propanediol, isoprene glycol, 1,2 -Polyols such as pentanediol, hexylene glycol, octylene glycol, glycerin; and sugars or sugar alcohols such as xylitol, sorbitol, maltitol, mannitol, sucrose, erythritol, glucose and fructose. Among them, 1,3-butylene glycol, isoprene glycol, 1,3-propanediol, dipropylene glycol and 1,2-pentanediol are preferable as the water-soluble humectant of component (A). Since these polyols function not only as a humectant but also as a solvent, they have an effect of promoting foaming by promoting the dissolution of the component (B) that easily forms liquid crystals. Moreover, since these compounds have antibacterial properties, there is an advantage that an antiseptic system with less irritation to the skin can be constructed.

  Component (A) is, for example, 0.5% by mass or more, preferably 1% by mass or more, and more preferably 3% by mass or more in the skin cosmetic composition from the viewpoint of a moisturizing effect on the skin. On the other hand, from the viewpoint of suppressing heat sensation during use and stickiness when dried, the component (A) is, for example, 20% by mass or less, preferably 15% by mass or less, more preferably 10% by mass in the skin cosmetic composition. % Or less is blended.

(Ingredient (B))
Component (B) is an HLB 8-16 nonionic surfactant composed of an ester compound having one or more polyol residues and two or more fatty acid residues having 12 to 22 carbon atoms in one molecule. .
Specific examples of the component (B) include polyoxyethylene (hereinafter also referred to as “POE”) hydrogenated castor oil, POE glycerin fatty acid ester, polyglycerin fatty acid ester, POE sorbitol fatty acid ester, and POE sorbitan fatty acid ester. It is 1 type, or 2 or more types of hydrophilic nonionic surfactant which can be selected from these.
By containing the component (B), it is excellent in the solubilizing ability of these oily components even when blending fragrances, preservatives, etc., and it also remains on the skin and gives a moist feeling with little stickiness. it can. Among the components (B), a POE glycerin fatty acid ester and a polyglycerin fatty acid ester having a glycerin skeleton are particularly preferable because they are not sticky.

  The component (B) has a function of improving the stability of the foam film after being mixed with the later-described component (C) to generate foam and forming a foam film. By the action of the component (B), when the cosmetic composition is spread on the palm, the foam does not disappear and the shape retaining property is maintained, so that it can be applied to a large area such as the body. It also has the effect of maintaining a moist feeling.

  As the POE hydrogenated castor oil, those having an ethylene oxide (EO) polymerization degree of 20 (HLB9) to 80 (HLB15) are preferable, and those having an EO polymerization degree of 30 (HLB11) to 80 (HLB15) are particularly preferable.

Examples of the POE glycerin fatty acid ester include POE glycerin diisostearate, POE glycerin triisostearate, and POE glycerin trioleate having a degree of polymerization of EO of 20 (HLB10) to 80 (HLB16).
Among them, POE glycerin triisostearate and POE glycerin trioleate having an EO polymerization degree of 25 (HLB9) to 80 (HLB15) are preferable, and in particular, a POE having an EO polymerization degree of 30 (HLB10) to 80 (HLB15). Glycerin triisostearate and POE glycerol trioleate are preferred.

As polyglycerol fatty acid ester, di- or trilaurate having an average degree of polymerization of glycerol of 5 to 10;
Di- or trimyristate having an average degree of polymerization of glycerin of 10;
Dipalmitate having an average degree of polymerization of glycerin of 10;
Examples include disalerate, diolate or diisostearate having an average degree of polymerization of glycerol of 10. Particularly preferred are polyglyceryl-10 dioleate (HLB 11.9) and polyglyceryl-10 diisostearate (HLB 11.1) having an average degree of polymerization of glycerol of 10.

  Examples of the POE sorbitol fatty acid ester include tetrastearylate, tetraoleate or isostearylate having an EO polymerization degree of 20 (HLB9.5) to 60 (HLB14), and in particular, an EO polymerization degree of 30 (HLB9.5). ) To 60 (HLB14) tetrastearate, polyoxyethylene sorbitol tetraoleate (HLB11.2), and polyoxyethylene sorbitol tetraisostearate (HLB12.5) are preferred.

  Examples of the POE sorbitan fatty acid ester include tristearate, trioleate or triisostearate having a polymerization degree of EO of 20 mol. In particular, polyoxyethylene sorbitan trioleate and polyoxyethylene sorbitan triisostearate (each HLB11) are preferable.

  Ingredient (B) is, for example, 0.05% by mass or more, preferably 0.3% by mass or more in the skin cosmetic composition from the viewpoint of solubilization of preservatives, perfumes and the like, and improvement of foam stability. Is done. On the other hand, from the viewpoint of suppressing sliminess during use and an increase in liquid viscosity at low temperatures, the component (B) is blended in the skin cosmetic composition, for example, 5% by mass or less, preferably 3% by mass or less.

  Moreover, the HLB number of a component (B) is 8 or more from a soluble viewpoint, Preferably it is 10 or more. On the other hand, the HLB number of the component (B) is 16 or less, preferably 15 or less, from the viewpoint of giving a moist feeling without stickiness.

(Ingredient (C))
Component (C) is an HLB 12-20 nonionic surfactant composed of an ester compound having one fatty acid residue having 12 to 22 carbon atoms in one molecule.
Specifically, it is one or more hydrophilic nonionic surfactants selected from the group consisting of POE fatty acid esters, POE glycerin fatty acid esters, POE sorbitan fatty acid esters and polyglycerin fatty acid esters.
Component (C) functions as a foaming component.

  Examples of the component (C) include POE fatty acid esters such as monolaurate and monomyristate having an EO polymerization degree of 10 to 20. In particular, POE (12) monolaurate is preferable. In addition, in the above, the number in () represents the polymerization degree of EO.

  Examples of the POE glycerin fatty acid ester include laurate and myristate having an EO polymerization degree of 10 to 50. Alkyl groups derived from coconut oil fatty acids can also be used because myristate is mainly contained. In particular, POE (12) glycerol monolaurate (HLB15), POE (20) glycerol monolaurate (HLB16.5), and POE (7) glycerol monococoate (HLB13) are preferable. In addition, in the above, the number in () represents the polymerization degree of EO.

  Examples of the POE sorbitan fatty acid ester include monolaurate and monomyristate having a polymerization degree of EO of 5 to 30. In particular, POE (20) sorbitan monolaurate (HLB16.7), POE (20) sorbitan monomyristate (HLB15), POE (20) sorbitan monococoate (HLB15), POE (6) sorbitan monolaurate (HLB13) ) Is preferred. In addition, in the above, the number in () represents the polymerization degree of EO.

  Examples of the polyglycerol fatty acid ester include monolaurate, monomyristate, monococoate having an average degree of polymerization of glycerol of 5 to 10. In particular, polyglycerol (5) monolaurate (HLB16), polyglycerol (10) monolaurate (HLB16.3), polyglycerol (5) monomyristate (HLB15), polyglycerol (10) monomyristate (HLB15. 7) is preferred. In addition, in the above, the number in () represents the average degree of polymerization of glycerol.

  Among these, POE glycerin fatty acid ester and polyglycerin fatty acid ester are preferable because they are less sticky. Further, POE glycerin fatty acid ester and polyglycerin fatty acid ester having 12 to 14 carbon atoms of fatty acid are preferable from the viewpoints of stability and foamability.

  Component (C) is blended in the skin cosmetic composition in an amount of, for example, 0.05% by mass or more, preferably 0.1% or more from the viewpoint of foamability. On the other hand, from the viewpoint of maintaining gentleness to the skin, the component (C) is, for example, 8% by mass or less, preferably 5% by mass or less, in the skin cosmetic composition.

Moreover, the HLB number of a component (C) is 12 or more from a soluble viewpoint, Preferably it is 14 or more. On the other hand, from the viewpoint of foamability, the number of HLB of component (C) is 20 or less, preferably 18 or less. In addition, it is preferable that HLB of mixing when combining (B) component and (C) component is adjusted to 10 or more, and it is more preferable from a foaming point to adjust to 12 or more further.
The number of HLB of component (C) may be the same as or different from the number of HLB of component (B).

  Since it is important that a product intended to be applied to the skin does not irritate the skin, first, a material that is gentle to the skin is selected. At that time, the selection of the surfactant is particularly important, and generally a multi-chain ester nonionic surfactant having a high molecular weight is selected. These surfactants can be expected to have a high emulsifying ability and solubilizing ability and to give a moist feel by remaining on the skin. Therefore, these active agents are widely used in skin care products regardless of lotion and milky lotion. However, these surfactants have low critical micelle concentration (CMC) in water and have properties such as the formation of liquid crystals from a relatively low concentration. It is inappropriate.

On the other hand, even if it is a nonionic surfactant, a hydrophilic surfactant having a small molecular weight and a relatively short alkyl group will form a certain amount of foam when mixed with liquid and air in a foam discharge container. Can do. This is presumably because component (C) has a higher CMC than component (B) and has a relatively high ability to reduce dynamic interfacial tension when the interface is rapidly increased.
Here, when the component (B) that does not foam but can give a gentle and moist feeling to the skin and the foamable component (C) are combined, the component (C) alone cannot be obtained unexpectedly. A foam stabilizing effect was obtained, and moderate foaminess was developed. This makes it possible, for example, to maintain a good foam and quickly spread it over a wide area such as the body even after an operation such as sandwiching the foam taken in both hands and spreading it to the palm of both hands. It became possible to give a moist feeling with little stickiness.

  From such a viewpoint, the component (C) is blended in the cosmetic together with the component (B) at a ratio of the mass ratio (B) :( C) to the component (B) of 8: 2 to 2: 8. The Component (B) and component (C) may be mixed and blended in the cosmetic. When there are too many components (C), a bubble is easy to be crushed and it is inferior to elongation, and may become sticky after becoming familiar with skin. Moreover, when there are too many components (B), the property of the discharged foam may become non-uniform | heterogenous. From the viewpoint of further improving these balances, it is particularly preferable that (B) :( C) is 7: 3 to 4: 6. Furthermore, it is preferable to use an activator having a glycerin skeleton as the component (B) because the stickiness of the cosmetic composition can be further reduced.

  Further, the nonionic surfactant having a glycerin skeleton is effective even when applied to either the component (B) or the component (C). In that case, it is preferable that the nonionic surfactant having a glycerin skeleton occupies 50% or more based on the total amount of the component (B) and the component (C).

  The total amount (B) + (C) of component (B) and component (C) in the cosmetic composition is 0.1 to 10% by mass. When there are too few (B) + (C), the effect which gives a bubble and moisture may deteriorate. On the other hand, if there are too many (B) + (C), it may become sticky or strongly squeezed when stretched on the skin. From the viewpoint of further improving these balances, the blending amount of (B) + (C) is preferably 0.2 to 8% by mass, more preferably 1 to 5% by mass.

(Component (D))
In order for the surfactant to form bubbles, the presence of water as component (D) is essential. Water acts as a solvent in the composition. The ratio of the component (A) to the component (B) greatly affects the dissolved state of the surfactant and affects the foamability. Therefore, the component (D) preferably occupies a proportion of 50% by mass or more of the components excluding the component (B) and the component (C) in the cosmetic composition, and further occupies 70% by mass or more. It is preferable. Moreover, 98 mass% or less is preferable and 95 mass% or less is more preferable.

  The skin cosmetic composition in the present invention may contain components other than the components (A) to (D). Hereinafter, other components will be described.

(Ingredient (E))
Component (E) is a higher alcohol or fatty acid having 10 to 22 carbon atoms and solid at 25 ° C. When the component (E) is added to the foam-like skin care product of the present invention, it is felt that the familiarity with the skin is improved due to the squeaky feel of the solid fat. That is, by adding the component (E), it is possible to obtain a feeling that the foam like cream is firmly attached to the skin, and as a result, the skin care feeling is improved.

  As the component (E), higher alcohols having 12 to 18 carbon atoms such as lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, cetyl alcohol and the like and 12 to 18 carbon atoms such as lauric acid, myristic acid, palmitic acid and stearic acid. In particular, lauryl alcohol, myristyl alcohol, palmityl alcohol, lauric acid, myristic acid, and palmitic acid are preferable from the viewpoint of improving skin familiarity while avoiding low temperature precipitation.

  In the component (E), the ratio of the component (E) to the total of the component (B) and the component (C) is (E) / ((B) + (C)) = 1 in the skin cosmetic composition. It mix | blends in the ratio used as / 60-1 / 10. When the ratio of the component (E) to the sum of the component (B) and the component (C) is too small, there may be a case where the actual feeling of firmly attaching to the skin cannot be obtained. On the other hand, when the ratio of the component (E) to the total of the component (B) and the component (C) is too large, the entire system may be thickened and hardly form bubbles, or the stability may be deteriorated. From these balances, it is preferable that component (E) is further blended at a ratio of (E) / ((B) + (C)) = 1/50 to 1/20.

In the present invention, it is assumed that the skin cosmetic composition is discharged from the discharge container. In particular, the addition of the component (E) is highly likely to affect the viscosity. From the viewpoint of ensuring the operability of the discharge pump and maintaining foam formation, the viscosity of the component (E) is preferably 20 mPa · s or less. In order to discharge with better foam quality, it is preferably 15 mPa · s or less.
In addition, the viscosity of a component (E) and the component (F) mentioned later is specifically measured on the conditions mentioned later in the term of an Example.

(Ingredient (F))
Component (F) is an oil agent having an IOB of 0.3 or more and less than 0.8 and being liquid at 25 ° C. Ingredient (F) has a function to increase and maintain a moist feeling after coating, but on the other hand, addition of ingredient (F) may affect the foam performance of the composition. It is preferable to select the amount appropriately.

Here, IOB is an organic conceptual diagram (Akira Fujita, Prediction of organic compounds and organic conceptual diagram, Chemistry Vol.11, No.10, (1957) 719-725) It represents the ratio of the property values (Inorganic Organic Balance) and is obtained by the following formula.
IOB = inorganic value / organic value

  As the component (F), an oil agent generally used in skin care can be used, but since it is assumed to be foamed, it has good compatibility with a nonionic surfactant and is easily solubilized. Oil is chosen. From the above viewpoint, the IOB of the component (F) is 0.3 or more, preferably 0.4 or more, and the IOB is less than 0.8 and preferably 0.6 or less. If it is in this range, it is easy to solubilize and the influence on foam performance can be reduced.

  As the component (F), for example, olive oil (IOB 0.42, viscosity 73 cps), tri (capryl capric acid) glycerin (IOB 0.32, viscosity 27 cps), monoisostearate diglycerin (IOB 0.41, viscosity 860 cps), diisostearin Examples thereof include acid diglycerin (IOB 0.42, viscosity 940 cps), isostearyl glyceryl ether (IOB 0.52, viscosity 304 cps), isostearic acid (IOB 0.42, viscosity 1340 cps), and the like. In particular, in order to maintain a moist feeling after being applied to the skin, it is preferable to use an oil agent having a high viscosity even if it is liquid. Specifically, it is preferable to use an oil agent of 300 cps or more.

  The oil agent of component (F) is a skin cosmetic composition in which the ratio of component (F) to the total of component (B) and component (C) is (F) / ((B) + (C)) = 1/50 to 1/10 If the ratio of the component (F) to the sum of the component (B) and the component (C) is too small, it may not be possible to realize a moist feeling. Moreover, when there are too many ratios of the component (F) with respect to the sum total of a component (B) and a component (C), foaming property may fall remarkably. From these balances, the component (F) is more preferably combined at (F) / ((B) + (C)) = 1/30 to 1/20.

Further, in the obtained skin cosmetic composition, it is important that the skin cosmetic composition has a transparent to translucent appearance and looks visually as one liquid phase. Exhibiting a cloudy appearance means that the oil layer is separated, and the separated oily component is adsorbed on the foam film and defoamed.
The term “transparent” as used herein means that 90% or more is transmitted when 550 nm light is measured at a cell length of 10 mm, and translucent means that 10% or more is transmitted. In particular, when adding the oil component (F), it is preferable to consider keeping the appearance of a transparent to translucent one liquid phase.

Moreover, when foaming property falls, it is preferable to use a component (F) and a small amount of anionic surfactant together. In that case, in view of irritation to the skin and the like, the addition amount of the anionic surfactant is preferably about 0.05 to 2.0% by mass in the skin cosmetic composition. Furthermore, about 0.1 to 1.0% mass is optimal.
Specific examples of the anionic surfactant include alkyl ethoxy ether acetates having an alkyl chain having 12 to 14 carbon atoms, acylated glutamates, acylated glycine salts, and acylated taurates.

  The cosmetic of the present invention further contains components usually used in cosmetics, for example, surfactants other than those described above, water-soluble solvents other than those described above, thickeners, bactericides, moisturizers, wetting agents, colorants, preservatives. , Feel improvers, fragrances, anti-inflammatory agents, whitening agents, antiperspirants, ultraviolet absorbers, and the like can be appropriately contained.

  The skin cosmetic composition of the present invention can be produced by blending and mixing the components in a predetermined order. In the case of a skin cosmetic composition comprising component (E) or (F) together with components (A) to (D), specifically, component (B), (C), (E) or component (B) , (C), (F) are mixed, heated to 80 ° C., and stirred until uniform. Components (A) and (D) are mixed here, and the liquid heated to 80 ° C. is added little by little with stirring to make it uniform. Then, it cools to 25 degreeC, stirring, and manufactures.

The obtained cosmetic composition is filled in a foam discharge container. The foam discharge container has a porous film, and examples of the porous film include a sponge, a sintered body, and a net. Among these porous membranes, if the cosmetic composition remaining on the membrane dries and solidifies, clogging occurs by the flow of bubbles at the next discharge, which immediately dissolves the solidified material and eliminates clogging. Since it can do, the net | network which is thin is preferable. The net is preferably 50 to 500 mesh, and particularly preferably 200 to 400 mesh in order to produce good foam. Moreover, nylon, polyester, etc. are mentioned as a preferable material of such a mesh.
Further, the foam discharge container preferably has a plurality of such films, and in particular, from the viewpoints of economy, foam stability, and the like, it is preferably two.

Further, the foam discharge container may be any one as long as it mixes a certain amount of the cosmetic composition with a certain amount of air and discharges it as a foam state. Japanese Utility Model Publication No. 58-174272, Japanese Utility Model Publication 62. No. 42787, Japanese Patent Publication No. 52-16567, etc., and a squeeze foamer used by pressing the torso of a soft container with fingers; and Japanese Utility Model Publication No. 3-7963, Japanese Utility Model Publication 62- No. 103458, JP-A-7-315463, etc., and a pump former used by pressing a pump head (piston pressing portion) having a pump mechanism with a finger.
Moreover, the skin cosmetics containing the obtained skin cosmetic composition can be used, for example by discharging from a former container and apply | coating to skin.

The skin cosmetic composition according to the present invention can be easily spread regardless of the face or body, but it is particularly useful for body lotions applied to a large area, hand care agents applied to crowded parts, etc. It is useful as a cosmetic.
Further, the skin cosmetic composition according to the present invention can be easily applied to the body in the form of foam, and can give moisture without worrying about stickiness or dirt on clothes.
The skin cosmetic composition according to the present invention, for example, takes the foam discharged from the foam discharge container, applies it directly to the skin as it is without diluting with water, and spreads it quickly to make it fit well. Moreover, after apply | coating to skin, you may massage the composition well. Basically do not wash with water.

(Examples 1 to 23, Comparative Examples 1 to 6)
Compositions were prepared and evaluated with the formulations shown in Tables 1-5. The preparation method and evaluation method of the composition are shown below.

(Method for preparing composition)
When the components (A) to (D) were blended, the following procedure was used. That is, each component was weighed and heated to 80 ° C. or higher and stirred. When the solid component dissolved and became homogeneous, it was cooled to room temperature. Thereafter, the sample was put in a pump former (manufactured by Yoshino Kogyo Co., Ltd., 160 mL YF-9413, discharge amount 1 mL, expansion ratio 13 times, 300 mesh 2 sheets) as a sample.

  Moreover, it was set as the following procedures, when mix | blending component (A)-(E) or component (A)-(F). That is, components (B), (C), (E) or components (B), (C), (F) were weighed as oil phases, heated to 80 ° C. or higher and stirred. When the components were dissolved, a mixed solution of (A) and (D) heated to 80 ° C. was added little by little with stirring, the phase was changed, and then cooled to room temperature. Thereafter, a sample was obtained according to the method described above.

(Evaluation method)
Evaluation of foaming One push of foam was discharged onto the medicine wrapping paper with a pump former. The foam immediately after discharge was visually evaluated in the following 4 or 5 stages.
Foam evaluation criteria ○: Uniform and fine bubbles ○ △: Coarse bubbles are mixed with coarse bubbles Δ: Foam is coarse and watery ×: Does not become foam

Evaluation of foam stick (foam that does not collapse even if the palms are spread together) After taking the foam in one hand, it was evaluated assuming that it was sandwiched between both palms and spread in both hands. In this evaluation, it is important to be able to maintain a shape retaining property without being crushed even if it is sandwiched between palms. Therefore, the foam discharged on the medicine-wrapping paper was folded in half along the diagonal and sandwiched and opened, folded again in the opposite diagonal and then opened, and the sandwiched foam was evaluated according to the following evaluation criteria.
○: Bubbles are hardly crushed and there is almost no leakage of liquid.
○ △: Bubbles are slightly crushed and the liquid is slightly exuded.
(Triangle | delta): Most foams are crushed and there are many oozes of a liquid.
X: Bubbles were crushed and almost disappeared.

Evaluation of foam quality Five expert panelists ejected a single push of foam into the palm of the hand and evaluated the touch according to the following criteria.
(Double-circle): All evaluated it as creamy foam.
○: Four or more of five people evaluated it as creamy foam.
(Circle) (triangle | delta): Three out of five evaluated it as creamy foam.
(Triangle | delta): Two out of five people evaluated it as creamy foam.
X: 1 or less of 5 people evaluated it as creamy foam.

Evaluation of skin feel Five special panelists evaluated moist feeling, non-stickiness, and skin familiarity while discharging and spreading muscat-sized foam on the forearm. Moreover, the moist feeling after 1 hour of application was evaluated to maintain the moist feeling.
The evaluation criteria are as follows.
A: All members evaluated (moist, non-sticky, good skin fit).
○: Four out of five people evaluated it as being moist, non-sticky, or familiar with the skin.
(Circle) (triangle | delta): Three out of five people evaluated (moist, non-sticky, or skin familiarity was good).
(Triangle | delta): Two or less out of five people evaluated it as (moist, non-sticky, or skin familiarity).
X: 1 or less out of 5 people evaluated that it was moist, non-sticky or had good skin familiarity.

Measurement Method of Viscosity Using a B-type (Brookfield) viscometer (Digital TVR-10M, manufactured by Toki Sangyo Co., Ltd.) and a rotor M1, measurement was performed at 25 ° C. and 60 rpm for 1 minute.

Measuring method of transmittance Using a UV-1800 Shimadzu manufactured by Shimadzu Corporation, a sample was put in a cell having an optical path length of 10 mm, and the transmittance at a wavelength of 550 nm was measured.

In Tables 1 to 5, the following abbreviations were used in addition to those described above in this specification.
PEG: Polyethylene glycol

From Table 1 and Table 2, in Comparative Example 1 in which component (C) was not added, and in Comparative Example 3 in which a component having a small HLB was used instead of component (C), foaming was not sufficient. In, sufficient foaming can be obtained by adding the component (C).
Moreover, by using what has a glycerol skeleton as a component (C), it is especially excellent in the sticking suppression effect.
Moreover, in Comparative Example 2 in which the component (B) is not added, in each Example, the addition of the component (B) improves the foaminess and the skin feel when applied to the skin.

  As shown in Table 3, the composition (A) is a compound having a solvent effect such as 1,3-BG, so that a component that is relatively easy to form a liquid crystal is used as the component (B). It can suppress more effectively that a thing isolate | separates into a liquid crystal and an aqueous phase.

From Table 4, in addition to the components (A) to (D), the addition of the higher alcohol or fatty acid of the component (E) leads to an improvement in bubble elasticity and an improvement in skin familiarity.
Further, from Table 5, the addition of the component (F) is more effective in improving the moist feeling and maintaining it, and the addition of a small amount of anionic surfactant together with the component (F) The balance of performance is further improved.

(Example 24)
Composition for body lotion (A): 1,3-BG 5% by mass
Component (A): Glycerin 3% by mass
Component (B): POE25 hydrogenated castor oil (Emanon CH-25, manufactured by Kao Corporation) 1.5% by mass
Component (C): PEG 12 laurate (Emanon 1112, manufactured by Kao Corporation) 1% by mass
Component (D): Water Balance component (E): Cetanol (cetyl alcohol NX, manufactured by Higher Alcohol Industry Co., Ltd.) 0.2% by mass
Trimethylglycine 3% by mass
POE (2.6) lauryl ether carboxylic acid potassium salt 0.2% by mass
Phenoxyethanol 0.2% by mass
Methylparaben 0.1% by mass
Fragrance 0.01% by mass

Claims (8)

The following components (A) to (D):
(A) One or two selected from the group consisting of a polyol having two or more hydroxyl groups in an alkyl group having 3 to 6 carbon atoms and a sugar or sugar alcohol having two or more hydroxyl groups in a sugar skeleton of a monosaccharide or disaccharide More than water-soluble humectants,
(B) a nonionic surfactant of HLB 8-16 composed of an ester compound having one or more polyol residues and two or more fatty acid residues having 12 to 22 carbon atoms in one molecule;
(C) a nonionic surfactant of HLB 12-20 composed of an ester compound having one fatty acid residue having 12 to 22 carbon atoms in one molecule,
(D) a composition comprising water,
The ratio of the component (B) and the component (C) in the composition is (B) :( C) = 8: 2 to 2: 8 by mass ratio,
In the composition, the total amount (B) + (C) of component (B) and component (C) is 0.1 to 10% by mass,
A skin cosmetic composition used in a foam discharge container.   The component (A) water-soluble humectant is at least one selected from the group consisting of 1,3-butylene glycol, isoprene glycol, 1,3-propanediol, dipropylene glycol and 1,2-pentanediol. The skin cosmetic composition according to claim 1.   The component (B) nonionic surfactant is selected from the group consisting of polyoxyethylene hydrogenated castor oil, polyoxyethylene glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene sorbitol fatty acid ester and polyoxyethylene sorbitan fatty acid ester The skin cosmetic composition according to claim 1, wherein the skin cosmetic composition is one type or two or more types.   The component (C) nonionic surfactant is one or more selected from the group consisting of polyoxyethylene fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene sorbitan fatty acid esters and polyglycerin fatty acid esters. The skin cosmetic composition according to any one of claims 1 to 3.   The nonionic surfactant of the component (C) is selected from the group consisting of the polyoxyethylene glycerin fatty acid ester having 12 to 14 carbon atoms of fatty acid and the polyglycerin fatty acid ester having 12 to 14 carbon atoms of fatty acid. The skin cosmetic composition according to claim 4, which is one kind or two or more kinds. Component (E) A higher alcohol or fatty acid that is solid at 25 ° C. having 10 to 22 carbon atoms, and the ratio of component (E) to the total of component (B) and component (C) in the composition Is a skin cosmetic composition according to any one of claims 1 to 5, wherein (E) / ((B) + (C)) = 1/60 to 1/10 in terms of mass ratio. Component (F) IOB is 0.3 or more and less than 0.8, and further includes an oil agent that is liquid at 25 ° C., and the component (F) with respect to the total of the component (B) and the component (C) in the cosmetic ) Is a mass ratio of (F) / ((B) + (C)) = 1/10 to 1/50, the skin cosmetic composition according to any one of claims 1 to 6.   A method for using a skin cosmetic, wherein the skin cosmetic comprising the skin cosmetic composition according to any one of claims 1 to 7 is discharged from a former container and applied to the skin.