JP5064659B2 - Pearl agent composition and cosmetics containing the same - Google Patents

Description

  The present invention relates to a pearl composition, a method for producing the same, and a cosmetic comprising the pearl composition, and more particularly, an ester of a polyoxyalkylene polyhydric alcohol and an unsaturated or branched fatty acid; The present invention relates to a pearl agent composition containing ceramides, a polyhydric alcohol and the like, a production method thereof, and a cosmetic containing the pearl agent composition.

   BACKGROUND ART A pearl agent or a pearl agent composition has been conventionally used as a substance that imparts pearly luster by blending in cosmetics, bathing agents, hair cosmetics, skin external preparations, skin protection agents, and the like. And as a pearl agent, natural products such as fish scale foil and mica and inorganic flaky crystals have been used for a long time, but these are often expensive or cannot obtain a uniform composition, On the other hand, as an organic pearl agent, for example, a technique for imparting pearl luster has been provided by blending, for example, a glycol fatty acid ester into a shampoo or the like. As this organic pearl agent, ethylene glycol dihigher fatty acid ester and aliphatic diethanolamide, olefin sulfonate, water, and inorganic electrolyte have a specific ratio composition, and heated above the melting point of the active ingredient pearl agent to obtain a uniform solution. Thereafter, a method for producing a high-concentration pearling agent dispersion in which crystals having a pearly luster are precipitated by cooling (see, for example, Patent Document 1), an ethylene glycol difatty acid ester having a specific fatty acid composition, and an isethionate anion interface A face wash composition having a pearly luster containing an activator and N-acyl glutamate or N-acyl aspartate (for example, see Patent Document 2), an alkyl glycoside, a higher alcohol, and a surfactant. A lotion having a blended pearly luster (for example, see Patent Document 3) is known.

    Further, a pearl brightener comprising an ether represented by the general formula R1-O-R2 (wherein R1 and R2 are the same or different and represent a hydrocarbon group having 16 to 36 carbon atoms) (for example, patents) Reference 4) and (A) one or two or more kinds of pearl agent selected from higher fatty acid glycol ester, higher fatty acid and higher alcohol 0.005 to 10% by weight (B) basic substance 0.001 to 5% by weight (C) A keratin soft cosmetic containing 0.01 to 10% by weight of an ether type nonionic surfactant (for example, see Patent Document 5) is known.

  Furthermore, it is a gel composition containing a carboxyvinyl polymer and / or an acrylic acid / alkyl methacrylate (C10-30) copolymer and a fatty acid, wherein at least a part of the fatty acid is a fine flake, A gel-like composition having a feeling (for example, see Patent Document 6), a linear fatty alcohol having 14 to 22 carbon atoms and a pearlized product mixed with water, and 8 to 12 carbon atoms The skin containing 50.0 / 50.0 to 98.0 / 2.0 by mass ratio (linear fatty alcohol / polyglycerin fatty acid ester) of polyglycerin fatty acid ester having at least one of these linear alkyl groups A composition for external preparation (for example, see Patent Document 7) is also known.

  By the way, the skin that covers the human body is a very important function as a barrier film that avoids the loss of microorganisms, chemical substances, living organisms such as ultraviolet rays, chemical and physical invasion from the outside, and the loss of essential biological components such as moisture. Is running. This barrier membrane functions as a stratum corneum with a thickness of about 20 μm located in the outermost layer of the epidermis. A strong membrane is formed in such a way that intercellular lipids connect keratinocytes stacked in a brick shape like mortar. Forming. Ceramide plays a central role in the formation of a barrier film as a main component of the keratin intercellular lipid, and forms a lamellar structure together with other lipid components and has a barrier function. Ceramides found in human keratinocyte lipids are classified into 7 types of free ceramides (Type 1 to 7) and 2 types of membrane protein-bound ceramides (Type A and B). The importance of ceramide has become widely recognized, and there are a wide variety of products named “ceramide”, which are generally classified into natural ceramide, synthetic ceramide, and pseudoceramide (for example, non-patented). Reference 1). Moreover, human ceramides are classified into seven types. For example, type 1 ceramide is also called O-acyl ceramide because linoleic acid is ester-bonded at the end of ω hydroxyl group, and is specific to the stratum corneum. Since it is a ceramide, large-scale extraction is particularly difficult, and recently, type 2, natural type 3 and type 4 natural ceramides have been developed in combination with fermentation methods, organic synthesis methods, and the like (see, for example, Non-Patent Document 2).

  Various techniques for effectively using ceramides as external skin products such as cosmetics are increasing. However, since ceramide has high crystallinity and there are few oils to dissolve, if it is blended in a large amount in cosmetics, crystals may precipitate and hinder product stability, or depending on the oil that dissolves ceramides. From the viewpoints of safety and stability, the amount added to the cosmetic amount was naturally limited. In order to effectively use ceramides in cosmetics, for example, a mixture of ceramides and a substance such as polyoxyethylene cholesteryl ether can exhibit excellent improvement and prevention effects on skin roughness, , Cosmetics comprising an oil-in-water emulsion that has good storage stability as an external preparation (see, for example, Patent Document 8) and that allows ceramide and the like to penetrate well into the skin and hair ( For example, see Patent Document 9), and a ceramide-containing transparent dispersion (for example, a gel-like product composed of an oil containing ceramide and a polyoxyalkylene glyceryl monoalkyl ester and water is dispersed in an aqueous medium transparently (for example, Patent Document 10), long chain fatty acids having 12 to 24 carbon atoms and nonionic surfactants, and further sterols and polyvalents as necessary. An aqueous transparent composition containing 1.0 to 5.0% by weight of ceramides (for example, patents) by blending water with a lipid composition containing at least one compound selected from the group consisting of alcohols 11), a nonionic surfactant having an HLB in the range of 9-20, and a ceramide solubilization method using a liquid polyhydric alcohol (see, for example, Patent Document 12), or a carbon number of 12-32. The oily base material containing the fatty acid is heated to 70 to 95 ° C. and melted, and the ceramides are added and dissolved in the oily base material while maintaining the temperature. The aqueous solution in which the surfactant is dissolved is separately prepared and added to form a W / O emulsion, and then the aqueous solution in which the surfactant is further dissolved is added to the prepared W / O emulsion. W / O emulsion Method for producing the ceramide analog-containing emulsion to vary the O / W emulsion (e.g., see Patent Document 13) are known.

  On the other hand, as a pearling agent composition that can be blended in cosmetics and the like to impart pearly luster, an activator having an unsaturated or branched chain fatty acid, a polyoxyalkylene group, a ceramide, and a polyhydric alcohol No composition containing was known.

JP 57-156410 A Japanese Patent Laid-Open No. 06-157292 JP 08-217632 A Japanese Patent Laid-Open No. 10-298031 JP-A-11-322570 JP 2003-231612 A JP 2003-063922 A JP 7-33633 A JP-A-8-127526 JP 2001-139796 A JP 2001-316217 A Japanese Patent Laid-Open No. 2002-338459 JP 2004-161655 A "FRAGRANCE JOURNAL" 1999-10, p75-83, especially p75-76 “FRAGRANCE JOURNAL” 1999-10, p9-15, especially p14-15, FIG. 9 and FIG.

  The problem of the present invention is that, unlike conventional organic pearl agents, ceramides that are extremely safe and useful for the skin are used, and when used in cosmetics, the pearl luster is stably exhibited over a long period of time. An object of the present invention is to provide a pearl agent composition capable of imparting an original barrier function, a method for producing the same, and a cosmetic containing the pearl agent composition.

  Usually, pearl agents used in cosmetics are required to have excellent optical glossiness due to crystals, temperature stability and storage stability of pearl luster, safety to the skin, and the like. Among these demands, the present inventor places importance on the safety to the skin, and has focused on ceramide that plays a central role in forming a barrier film as a main component of lipids between keratinocytes of the skin. However, many techniques for effectively using ceramides as an external skin product such as cosmetics have been made so as not to precipitate ceramide crystals, and the ceramide crystals are stable in temperature (˜60 ° C.). It has not been known whether or not it has storage stability and whether or not uniform crystals can be obtained by recrystallization. Therefore, earnest research to make effective use of the crystallinity of ceramides, dissolve ceramides in polyhydric alcohol, and use specific amounts of specific active agents to give pearl luster to cosmetics, etc. The pearl agent composition was found to be a pearl agent composition that can be applied to the skin, and it was confirmed that this composition is an extremely stable pearl agent composition while maintaining not only the pearly luster but also the barrier function against the skin. It came to be completed.

  That is, the present invention comprises (1) the following components (a) to (d): (a) an ester of a polyoxyalkylene polyhydric alcohol and an unsaturated or branched fatty acid, (b) ceramides, (c) A pearl agent composition characterized by containing polyhydric alcohol, (d) water and producing ceramide crystals, and (2) component (a) is twice as much as component (b) ( The pearlescent agent composition according to (1), wherein (3) component (a) is a polyoxyethylene sorbite fatty acid ester, a polyoxyethylene hydrogenated castor oil fatty acid ester, The pearl agent composition according to the above (1) or (2), which is an oxyethylene glycerin fatty acid ester or a polyoxyethylene sorbitan fatty acid ester, or (4) a higher alcohol or And at least one compound selected from the group consisting of long-chain fatty acids, and the pearl agent composition according to any one of (1) to (3) above, 5) The crystal | crystallization of ceramides is the pearl agent composition in any one of said (1)-(4) characterized by the average particle diameter being 1-30 micrometers.

  The present invention also includes (6) (a) an ester of a polyoxyalkylene polyhydric alcohol and an unsaturated or branched fatty acid, (b) a ceramide, and (c) a polyhydric alcohol. A method for producing a pearl agent composition, characterized by mixing and stirring a solution that has been uniformly dissolved by heating, and warmed water or an aqueous medium, and cooling to room temperature to produce ceramide crystals, (7) Component (a) is blended so that component (b) is twice (mass) or more, and the method for producing a pearl agent composition according to (6) above, or (8) component (A) is characterized by being polyoxyethylene sorbite fatty acid ester, polyoxyethylene hydrogenated castor oil fatty acid ester, polyoxyethylene glycerin fatty acid ester or polyoxyethylene sorbitan fatty acid ester The method for producing the pearl agent composition according to (6) or (7) above, and (9) at least one compound selected from the group consisting of higher alcohols and / or long chain fatty acids is further blended. The method for producing the pearl agent composition according to any one of (6) to (8) above, and (10) a ceramide crystal having an average particle diameter of 1 to 30 μm. It is related with the manufacturing method of the pearl agent composition in any one of said (6)-(9) characterized.

  Furthermore, the present invention provides (11) a cosmetic comprising the pearl agent composition according to any one of (1) to (5), and (12) the above (1) to (5). The present invention relates to a cosmetic comprising the pearl agent composition according to any one of the above.

  According to the present invention, unlike conventional organic pearl agents, optically excellent pearl luster due to ceramide crystals also present in human interstitial lipids, temperature stability and storage stability of pearl luster, Therefore, it is possible to provide a pearl agent composition having safety against the safety, a cosmetic material having a pearly luster having a high level of safety and storage stability, and the like.

  The pearl agent composition of the present invention includes (a) an ester of a polyoxyalkylene polyhydric alcohol and an unsaturated or branched fatty acid, (b) ceramides, (c) a polyhydric alcohol, (d) water, And a pearl agent composition in which a ceramide crystal is produced is not particularly limited, and the method for producing the pearl agent composition of the present invention includes (a) polyoxyalkylene. A solution in which an ester of a polyhydric alcohol and an unsaturated or branched fatty acid, (b) ceramides, and (c) a polyhydric alcohol are blended, heated and uniformly dissolved, and heated The method is not particularly limited as long as it is a method of mixing and stirring water or an aqueous medium and cooling to room temperature to form ceramide crystals, and the component (c) is used to dissolve ceramides, Ingredient (a) Used as active agents for producing the crystals from the aqueous dispersion of the solution of the ceramide analog.

  The component (a) used in the present invention is not particularly limited as long as it is an ester of a polyoxyalkylene polyhydric alcohol and an unsaturated or branched fatty acid. For example, as component (a), 1) Polyoxyethylene sorbite fatty acid ester, 2) polyoxyethylene hydrogenated castor oil fatty acid ester, 3) polyoxyethylene glycerin fatty acid ester, or 4) polyoxyethylene sorbitan fatty acid ester. Two or more of these may be used in combination. Polyoxyalkylene hydrogenated castor oil does not correspond to component (a).

  Specifically, as 1), polyoxyethylene sorbite monooleate, polyoxyethylene sorbite tetraoleate, polyoxyethylene sorbite pentaoleate, polyoxyethylene sorbite monolaurate, polyoxyethylene sorbite monostearate, etc. Examples of 2) include polyoxyethylene hydrogenated castor oil isostearic acid ester and polyoxyethylene hydrogenated castor oil triisostearic acid ester. Examples of 3) include polyoxyethylene glycerin monoisoester. Examples thereof include stearate and polyoxyethylene glycerin triisostearate. Examples of 4) include polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan tetraoleate. , Polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monolaurate can be exemplified. In the present invention, polyoxyethylene sorbitol tetraoleate, polyoxyethylene hydrogenated castor oil isostearate, polyoxyethylene glycerin monoisostearate, polyoxyethylene sorbitan monooleate can be preferably exemplified.

  As the ceramides of component (b) used in the present invention, known ceramides can be used, and any of natural ceramides, synthetic ceramides, pseudoceramides (synthetic pseudo ceramides) can be used. Natural ceramides cannot avoid problems in terms of price and purity, and it is not easy to use high-purity products in large quantities. Therefore, it is preferable to use synthetic ceramides or pseudoceramides. Specific examples include N-acyl sphingosine, N-hydroxyacyl phytosphingosine, N-acyl phytosphingosine, and types 1 to 4 of ceramide. In the present invention, ceramides as described above can be used alone or in combination of two or more, and it is particularly preferable to use N-stearoyl sphingosine (ceramide 2) and N-stearoyl phytosphingosine (ceramide 3).

  Examples of the polyhydric alcohol of component (c) used in the present invention include 1,3-butylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, sorbitol, maltitol, polyethylene glycol and the like. In the present invention, the above polyhydric alcohols can be used singly or in combination of two or more, but dipropylene glycol or 1,3-butylene glycol is particularly preferably used.

  In the pearl agent composition of the present invention, in order to precipitate crystals with excellent pearly luster, the component (a) as the active agent is 1.5 times (mass) or more, preferably 2 times the component (b). It is highly desirable to add more (mass). For example, when ceramide 2 is used as the ceramide and polyoxyethylene sorbitol tetraoleate (60E.O.) is used as the activator, the blending ratio of equal amount or less is too small with respect to the ceramides of the activator, When mixed and dispersed with water or an aqueous medium in a subsequent step, ceramides cannot be precipitated as fine crystals to the extent that they can function as a pearling agent. Crystals of ceramides that function as a pearling agent are more excellent in pearly luster when the average particle size is 1 to 30 μm. Here, the average particle diameter of the crystal is obtained by observing the sample with an optical microscope, measuring the major axis and minor axis of each crystal, calculating the average value for 50 crystals, and further calculating the average value. Say things. The pearl agent composition of the present invention contains water, and the amount of water varies depending on the type and form of the cosmetic to which the pearl agent composition of the present invention is applied.

  The pearl agent composition of the present invention uses sterols (including cholesterol, phytosterol and derivatives thereof) in addition to higher alcohols and / or long chain fatty acids (higher fatty acids), particularly higher alcohols or It is preferable to use long chain fatty acids. Higher alcohols and long-chain fatty acids have a solvent effect of dissolving ceramides, and these higher alcohols and long-chain fatty acids have the effect of controlling the crystallization rate of ceramide, compared to the case where they are not blended, Depending on the cooling method and the like, larger crystals of ceramide can be obtained, and it is often easier to produce a pearl composition.

  Examples of the higher alcohol include aliphatic alcohols having usually 10 to 32 carbon atoms, preferably 14 to 30 carbon atoms. Specific examples include lauryl alcohol, cetanol, cetostearyl alcohol, stearyl alcohol, Examples include oleyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, hexyl decanol, and octyldodecanol. In the present invention, it is particularly preferable to use stearyl alcohol. By blending such a higher alcohol in an amount usually in the range of 0.1 to 20 parts by weight, preferably 0.5 to 15 parts by weight, with respect to the total amount of the resulting composition (100 parts by weight). Further, the dissolution stability of ceramides is remarkably improved, and the rate of ceramide crystal precipitation can be controlled. These higher alcohols can be used alone or in combination.

  Examples of the long-chain fatty acids (higher fatty acids) preferably include fatty acids having 12 to 32 carbon atoms, preferably 14 to 30 carbon atoms. Specifically, myristic acid, palmitic acid, stearic acid, Examples include oleic acid, behenic acid, undecylenic acid, linoleic acid, linolenic acid, lanolin fatty acid, isostearic acid, arachidic acid and the like. In the present invention, it is particularly preferable to use isostearic acid. By blending such a long-chain fatty acid in an amount usually in the range of 0.1 to 5 parts by mass, preferably 0.2 to 3 parts by mass with respect to the total amount (100 parts by mass), ceramides The dissolution stability of the ceramide is remarkably improved, and the ceramide crystal precipitation rate can be controlled. These higher fatty acids can be used alone or in combination.

  The sterols (including cholesterol, phytosterol and derivatives thereof) are blended as a solvent for ceramides. By using this sterol, the dispersion stability of ceramides in the composition is improved, and it has an excellent protective effect on the skin. Such sterols are usually blended in an amount in the range of 0.01 to 10 parts by mass, preferably 0.1 to 5 parts by mass with respect to the total amount of the composition to be obtained (100 parts by mass).

  The pearl agent composition of the present invention can be obtained by the method for producing the pearl agent composition of the present invention. That is, (a) an ester of a polyoxyalkylene polyhydric alcohol and an unsaturated or branched fatty acid, (b) a ceramide, and (c) a polyhydric alcohol, 60 to 90 ° C., preferably A solution (hereinafter sometimes referred to as a “ceramide solution”) heated to around 70 ° C. and uniformly dissolved, and water or an aqueous medium heated to around 60-90 ° C., preferably around 70 ° C. It can be obtained by a method of producing a crystal such as a flaky crystal of ceramide having a pearly luster by mixing and stirring, preferably gently mixing and stirring, cooling to room temperature, preferably gradually cooling to room temperature. The mixing stirring is not particularly limited as long as it is capable of forming ceramide crystals having a pearly luster by cooling in the subsequent step. For example, a ceramide solution is gradually added to water or an aqueous medium. It is preferable to gradually add water or an aqueous medium to the ceramide solution and stir gently at a relatively low speed, for example, to cool to room temperature. The cooling is not particularly limited as long as it is capable of generating crystals, and it is preferable to gradually cool to room temperature, for example, by cooling to room temperature. Specifically, cooling from 60 ° C. to 40 ° C. takes about 15 to 120 minutes.

  In preparing the ceramide solution, ceramide 2 or ceramide 3 is selected as the ceramide, and polyoxyethylene sorbitol tetraoleate, polyester is used as an ester of polyoxyalkylene polyhydric alcohol and unsaturated or branched fatty acid. Select oxyethylene hydrogenated castor oil isostearic acid ester, polyoxyethylene glycerol monoisostearic acid ester or polyoxyethylene sorbitan monooleic acid ester, select dipropylene glycol or 1,3-butylene glycol as polyhydric alcohol, and long chain fatty acids As isostearic acid or oleic acid can be advantageously selected.

  The pearl agent composition of the present invention obtained by mixing, stirring and cooling the ceramide solution and the heated water is mixed with a cosmetic base material, whereby ceramide crystals having pearly luster are obtained. The cosmetics of the present invention having the following can be prepared. Further, the pearl agent composition of the present invention obtained by mixing and stirring the ceramide solution and the heated aqueous medium and cooling, the cosmetic base material component is dissolved or dispersed in advance in the aqueous medium, The pearl agent composition having a crystal of ceramide having pearly luster can be used as it is as the cosmetic of the present invention, but by mixing this with another cosmetic base material, the crystal of ceramide having pearly luster can be obtained. It can also be set as the cosmetic of the present invention having

  Examples of the cosmetics of the present invention include skin care cosmetics, makeup cosmetics, body care cosmetics, hair care cosmetics, and oral cosmetics. Specifically, skin lotions, astringents, cosmetic liquids, milky lotions, face washes. Examples include cream foams, liquid cleaning agents, bath preparations, shampoos, rinses, hair treatments, hair restorers, and hair tonics. Among these, from the viewpoint of aesthetics, liquid cosmetics such as lotions, astringents, and cosmetic liquids are preferable. In addition, the liquid state here refers to that whose viscosity at 30 ° C. is 1 to 2000 mPa · s as measured by a Brookfield rotary viscometer. In addition, as components constituting known cosmetic base materials used in these cosmetics, various dispersants, solubilizers, humectants, swelling agents, thickeners, film agents, pigments, perfumes, preservatives, Examples include pH regulators, UV absorbers, sequestering agents, skin nutrients, antioxidants, and the like. These include water-soluble polymers, saccharides, amino acids, organic amines, vitamins, liquid fats and oils, solids It is comprised from fats and oils, waxes, hydrocarbons, esters, silicone, cationic surfactants, amphoteric surfactants and the like.

  EXAMPLES Hereinafter, although an Example demonstrates this invention more concretely, the technical scope of this invention is not limited to these illustrations.

[material]
As a compounding component of each sample in Examples and Comparative Examples, for example, for ceramide, ceramide TIC-001 (manufactured by Takasago Inc.) as ceramide 2 and ceramide 3 (manufactured by Degussa) as ceramide 3 were used. As other raw materials, commercially available general-purpose raw materials were used.

[Appearance test]
The sample was filled in a 100 mL transparent glass container, and the pearl feeling was visually observed. “Precipitation” in the evaluation means that the particle diameter can be confirmed visually and there is no pearl feeling, specifically, the particle diameter is 0.1 mm to 3 mm, and “slight turbidity” is the average of crystals The particle size is about 0.5 μm or less, which is smaller than 1 to 30 μm showing a pearl feeling and means slightly cloudy to translucent. In any case, these do not exhibit a pearl feeling.

[Storage stability test]
After storing the sample put in a 100 mL transparent glass container for 1 month in a 5 degreeC and 50 degreeC thermostat, respectively, the change of the pearl appearance was compared on the passage of both samples. Evaluation was based on a sample stored at 5 ° C., a sample stored at 50 ° C. was compared to this, and evaluation was performed according to the following evaluation criteria.
(Evaluation criteria)
A: There is no change compared to the standard product.
○: A slight change is seen compared to the standard product, but it is a level with no problem.
X: There is a clear change compared with the reference product, which is a problem.

[Average particle diameter of crystal]
The sample was observed with an optical microscope, the major axis and minor axis of each crystal were measured, and the average value was calculated for 50 crystals. Furthermore, the average value was computed and it was set as the average particle diameter of the crystal | crystallization.

[Examples 1 to 4 and Comparative Examples 1 to 5]
Table 1 shows the blending components of these samples of Examples 1 to 4 and Comparative Examples 1 to 5 and blending ratios thereof (the same applies to the following examples, which refers to parts by mass). In each sample, components 1 to 13 shown in Table 1 were heated to 70 ° C. and uniformly dissolved, and then component 14 (purified water) heated to 70 ° C. was added little by little and mixed and stirred. After cooling to room temperature (cooling to a constant rate of 60 to 40 ° C./15 to 60 minutes), an appearance test (n = 3) was performed, and an average particle size (n = 3) of the crystal was determined. . Further, a storage stability test was performed on the samples subjected to the appearance test (n = 3). The results are shown in Table 1 (downward). Moreover, the average particle diameter of each sample of Examples 1-4 is 1-30 micrometers, and as shown in Table 1, the average particle diameter of Comparative Examples 1 and 2 is precipitation (0.1 mm-3 mm), slight cloudiness (about about 0.5 μm or less).

  As shown in Table 1, in Examples 1 to 4, an ester of a polyoxyalkylene polyhydric alcohol, which is an essential component of the present invention, and an unsaturated or branched fatty acid is used, and Comparative Examples 1 to 4 are used. 5, other active agents such as polyoxyethylene hydrogenated castor oil (80 EO), polyoxyethylene hydrogenated castor oil (60 EO), polyoxyethylene hydrogenated castor oil (40 EO), mono Using glyceryl stearate and glyceryl monooleate in the samples of the present invention (Examples 1 to 4), the use of the above-mentioned active agent gives a pearly luster to the appearance. None of the example samples exhibited a pearly luster.

[Examples 5 to 8 and Comparative Examples 6 and 7]
Table 2 shows the blending components of these samples of Examples 5 to 8 and Comparative Examples 6 and 7, and blending ratios thereof. In each sample, components 1 to 4 shown in Table 2 were heated to 70 ° C. and uniformly dissolved, and then component 5 (purified water) heated to 70 ° C. was added little by little and mixed and stirred, gradually. After cooling to room temperature (cooling to a constant rate of 60 to 40 ° C./15 to 60 minutes), an appearance test (n = 3) was performed, and an average particle size (n = 3) of the crystal was determined. . Further, a storage stability test was performed on the samples subjected to the appearance test (n = 3). The results are shown in Table 2 (lower). Moreover, the average particle diameter of each sample of Examples 5-8 is 1-30 micrometers, the average particle diameter of the comparative example 6 is about 0.5 micrometer or less (slight cloudiness), and the average particle diameter of the comparative example 7 is 0 1 mm to 3 mm (precipitation).

  As shown in Table 2, when the amount of ceramide 2 was constant (0.2% by mass) and the amount of tetraoleic acid polyoxyethylene sorbite (60EO) was compounded in various proportions, etc. When the amount was less than the amount, the appearance was not pearly, and the storage stability was clearly inferior in change.

[Examples 9 to 12 (cosmetics)]
Depending on the components shown in Table 3 and the blending amounts thereof, the blending components and blending ratios of the cosmetics of Example 9 (skin lotion), Example 10 (astringent), and Examples 11 and 12 (beauty liquid) are shown in Table 3. Shown in Each cosmetic was heated to 70 ° C. and uniformly dissolved in components 1 to 5 shown in Table 3, and components 6 to 8 heated to 70 ° C. were added little by little and gently mixed and stirred. Gradually cooled to room temperature, first a pearl agent composition was prepared, and in this pearl agent composition, components 16 and 17 were swollen with component 18 heated to 70 ° C., and a homogeneous solution of components 9-15 It was manufactured by adding.

  The cosmetics containing the pearl agent composition obtained by the above production method at the blending ratio of the components and the components shown in Table 3 had a pearly luster and a good storage effect.

[Example 13 (shampoo)]
The shampoo was manufactured with the manufacturing method mentioned later using the compounding component (1)-(12) of the following compounding ratios.
(1) Ceramide 2 0.2
(2) Cholesterol 0.1
(3) Isostearic acid 0.2
(4) Tetraoleic acid polyoxyethylene sorbit (60EO) 1.0
(5) Dipropylene glycol 5.0
(6) Purified water 30.0
(7) Cationized guar gum 0.2
(8) Polyoxyethylene (3E.O.) sodium alkyl ether sulfate
15.0
(9) Edetate disodium 0.2
(10) Preservative appropriate amount (11) perfume appropriate amount (12) remaining amount of purified water

  The shampoo was prepared by warming the above components 1 to 5 to 80 ° C and uniformly dissolving them, adding the component 6 heated to 80 ° C little by little, mixing and stirring, and gradually cooling to room temperature. An agent composition was prepared, and the pearl agent composition was prepared by adding component 7 swollen with component 12 heated to 80 ° C. and a uniform solution of components 8-12. The obtained shampoo had a pearly luster and had a good storage effect.

Claims (8)

The following components (a) to (e):
(A) Esters of polyoxyalkylene polyhydric alcohols and unsaturated or branched fatty acids (b) Ceramides (c) Polyhydric alcohols (d) Water (e) Higher alcohols and long chain fatty acids At least one compound selected from the above, and the component (a) is blended 1.5 times (mass) or more with respect to the component (b), and the components (a), (b), (C) and (e) are blended, heated and uniformly dissolved, and the heated (d) water or aqueous medium is mixed and stirred, cooled to room temperature, and the average particle size is reduced. Pearl agent composition characterized in that the crystals of ceramides were made fresh 1 to 30 [mu] m. The pearl agent composition according to claim 1, wherein component (a) is blended twice or more (mass) with respect to component (b). The component (a) is polyoxyethylene sorbite fatty acid ester, polyoxyethylene hydrogenated castor oil fatty acid ester, polyoxyethylene glycerin fatty acid ester or polyoxyethylene sorbitan fatty acid ester, pearl according to claim 1 or 2 Agent composition. (A) an ester of polyoxyalkylene polyhydric alcohol 1.5 times (mass) or more with respect to component (b) and an unsaturated or branched fatty acid, (b) ceramides, and (c) polyvalent A solution in which alcohol is mixed with (e) at least one compound selected from the group consisting of higher alcohols and long-chain fatty acids, and heated and uniformly dissolved, and heated water or aqueous solution A method for producing a pearl agent composition, comprising mixing and stirring a medium and cooling to room temperature to produce crystals of ceramides having an average particle size of 1 to 30 μm . The method for producing a pearl agent composition according to claim 4, wherein the component (a) is blended so as to be twice (mass) or more with respect to the component (b). The pearl according to claim 4 or 5 , wherein the component (a) is a polyoxyethylene sorbite fatty acid ester, a polyoxyethylene hydrogenated castor oil fatty acid ester, a polyoxyethylene glycerin fatty acid ester or a polyoxyethylene sorbitan fatty acid ester. A method for producing an agent composition. Cosmetics containing the pearl agent composition in any one of Claims 1-3 . A cosmetic comprising the pearl agent composition according to any one of claims 1 to 3 .