KR20100133973A - Oily solid-form cosmetic - Google Patents

Abstract

An object of the present invention is to provide an oil-based solid cosmetic having excellent brittleness with fingers and spreadability during use, less stickiness after application, and excellent storage stability and moisturizing effect. The oil-based solid cosmetics are (a) 5 to 25% by mass of phospholipids having a phospholipid composition of 25 to 42% of phosphatidylcholine, 25 to 42% of phosphatidylethanolamine, and (b) having a kinematic viscosity of 1 to 100 mm 2 / s at 25 ° C. Silicone oil, (c) It contains a liquid ester oil at 25 degreeC, and the content mass ratio (b) / (c) of component (b) and component (c) is 0.006-0.4, It is characterized by the above-mentioned.

Description

OILY SOLID-FORM COSMETIC

The present invention provides a phospholipid (component (a)) having a phospholipid composition of 25 to 42% of phosphatidylcholine and 25 to 42% of phosphatidylethanolamine, and a silicone oil (component (b)) having a kinematic viscosity of 1 to 100 mm 2 / s at 25 ° C. Oily solid cosmetic composition containing a liquid ester oil (component (c)) at 25 ° C and a content ratio (b) / (c) of components (b) and (c) is 0.006 to 0.4 In more detail, it is excellent in taking on a finger (hereinafter also referred to as "fragility") and spreadability in use, less stickiness after application, and excellent storage stability. The present invention relates to an oily solid form cosmetic having a high moisturizing effect.

Phospholipids generally have excellent skin affinity as an ecological-related component and are widely used in the cosmetic field, and are particularly used as dispersants, emulsifiers, humectants, and antioxidants (see, for example, Non-Patent Document 1). In addition, silicone oils, especially low viscosity silicone oils, are used for various purposes from their excellent luster, tremendous, refreshing feeling, lubricity, water repellency, safety, and the like, and are widely used in cosmetics. See, for example, Non Patent Literature 2).

In general, the oil-based solid cosmetics are solidified by blending wax components, such as fats such as cacao fat and Japanese wax, waxes such as carnauba wax and spermatozoon, paraffin wax and microcrystalline wax. It is to let. Apart from these wax components, a technique using dextrin fatty acid ester as an oil gelling agent is also known. For example, a technique related to an oil-based solid cosmetic composition combining a liquid oil with a solid oil component such as dextrin fatty acid ester and paraffin wax (see Patent Document 1, for example), dextrin fatty acid ester, heavy flow isoparaffin and liquid There exists a technique (for example, refer patent document 2) which combines an oily component.

However, in the technique of Patent Literature 1, the blending of oil components in the solid form may not be preferable in view of usability. Moreover, in the technique of patent document 2, it may become a problem in usability and storage stability, and may feel the sticky feeling after application | coating. Moreover, in these techniques, cosmetics were bad to take on a finger, and even when spread | coated on the skin, the spreadability was bad or there was a feeling of stickiness.

On the other hand, as mentioned above, since silicone oil has various outstanding characteristics, the technique which contains silicone oil in oil-based solid cosmetics is examined. For example, the technique regarding solid cosmetics which combined dextrin fatty acid ester, a liquid chain hydrocarbon of 40-200 average carbon number, a sterol derivative, and methylphenyl polysiloxane (for example, refer patent document 3), a three-dimensional crosslinked structure Regarding the use of organopolysiloxane polymers, acrylic silicone graft copolymers (see, for example, Patent Documents 4 and 5), gel-based cosmetics in which a fluoric acid-containing amide compound is combined with a hydrocarbon oil and a silicone oil The technique (for example, refer patent document 6) is disclosed. Moreover, among the said phospholipids, the technique of using hydrogenated phospholipid as an oil gelling agent (for example, refer patent document 7), or the technique of using inulin stearic acid ester as a gelling agent of silicone oil (for example, refer patent document 8). There is.

However, in the technique of Patent Literature 3, similarly to Patent Literatures 1 and 2 above, problems in usability and storage stability such as brittleness and spreadability to a finger may occur, or a sticky feeling after application may be felt. In the technique of patent documents 4 and 5, since compatibility with silicone oil and other oily components was bad, sufficient thickening action was not obtained, and it was difficult to obtain stable gelling composition. In addition, although the technique of patent document 6 is a technique regarding a novel gelling agent, there exists a case where it is not enough about the brittleness to a finger. Moreover, although the moisture retention effect is excellent in the technique of patent document 7, the spreadability may be bad by using a large amount of phospholipid. In fact, when the phospholipid is 40% or less of all the components, a wax component for solidifying the oil system is required, which may result in worsening of getting the cosmetic onto the finger, and also for improving the feeling of stickiness. When oil was contained, storage stability might worsen. Moreover, although the technique of patent document 8 relates to the cosmetics which gelatinize a volatile silicone oil, there existed a case where it was excellent in usability but was not enough in the point of a moisturizing effect.

JP2004-51500 A JPH9-235210 A JPH11-222413 A JPH1-79106 A JPH2-132141 A JP2005-68198 A JPS60-226804 A JP2004-300094 A

 "Development and application of functional fat", CMC, March 2, 1992 issuance, p292  Cosmetic Handbook, Nikko Chemicals Co., Ltd., etc., issued October 30, 2006, p87.

In this way, the oil-based solid cosmetics in the prior art is to solidify the oil-based component mainly using a solid oil component or an oil gelling agent, and to improve the poor brittleness and spreadability of the finger as a cosmetic. It was difficult. In particular, when silicone oil is contained to improve the spreadability, depending on the type of oil component, the compatibility is poor, or the thickening action or gelling ability is not sufficient, so that the viscosity decrease of the formulation is observed over time, It is a present situation that a thing called "drainage" in which an oil component flows out of a gel is seen, and there is little thing effective. Moreover, although the gelling agent is also examined variously, the thing sufficient in terms of usability and storage stability is not obtained yet. Therefore, the development of oil-based solid cosmetics with excellent spreadability and excellent moisture stability and moisturizing effect can be obtained without satisfactory spreadability with silicone oil and without feeling sticky after application. It was requested.

The present invention has developed a method for stably blending silicone oil in an oil-based solid cosmetic, without using a solid oil component or the like, thereby excellent in brittleness and spreadability to the finger, and after applying the cosmetic An object of the present invention is to provide an oily solid cosmetic composition which is not sticky and is excellent in storage stability and moisturizing effect.

In this situation, as a result of intensive research, the present inventors have found that the odor is applied to the finger by combining a phospholipid having a specific composition with a silicone oil having a kinematic viscosity of 1 to 100 mm 2 / s at 25 ° C and a liquid ester oil at 25 ° C. It was found that oily solid cosmetics excellent in saturation and spreadability, which are non-sticky after applying cosmetics and excellent in storage stability and moisturizing effect have been obtained, and have completed the present invention.

In other words, the present invention provides the following components (a) to (c):

(a) 5-25 mass% of phospholipids whose phospholipid composition is 25 to 42% of phosphatidylcholine and 25 to 42% of phosphatidylethanolamine;

(b) silicone oils having a kinematic viscosity of 1-100 mm 2 / s at 25 ° C .; And

(c) liquid ester oil at 25 ° C

And the content mass ratio (b) / (c) of the component (b) and the component (c) is 0.006 to 0.4.

The component (c) is an oil-based solid cosmetic according to claim 6, which is a triester oil of a C6-C30 branched fatty acid and glycerin.

The component (c) relates to an oily solid cosmetic preparation characterized in that 2-ethylhexanoic acid glyceryl and / or triisostearic acid glyceryl.

Moreover, it is related with the oil-based gel cosmetics characterized by containing 5-20 mass% of N-acylicin as a component (d).

It relates to the oil-based solid cosmetics obtained by filling the container with the components (a) to (c) melted at 70 to 80 ° C and cooling them.

It relates to the oil-based solid cosmetics obtained by mixing the components (a) to (c) and the component (d) melted at 70 to 80 ° C, filling them in a container, and cooling them.

The oil-based solid cosmetics of the present invention are excellent in brittleness and spreadability to fingers, less sticky feeling, and excellent storage stability and moisturizing effect.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the shear stress of this invention 9 and the comparative product 15 in Example 2. FIG.
2 is a scanning electron micrograph of the invention 9;

Hereinafter, the present invention will be described in detail.

The phospholipid of the component (a) of the present invention is used as an oil solidifying agent in an oil-based solid cosmetic, and the type of phospholipid is not particularly limited as long as it is usually used in cosmetics. Derived hydrogenated phospholipids, egg yolk-derived phospholipids, egg yolk-derived hydrogenated phospholipids may be used. These phospholipids are generally mixtures of phosphatidylcholine (hereinafter abbreviated as "PC"), phosphatidylethanolamine (hereinafter abbreviated as "PE"), phosphatidylinositol (hereinafter abbreviated as "PI"), and the like. Although the composition varies depending on the origin of, the phospholipid used in the present invention is a phospholipid composition of 25 to 42% PC and 25 to 42% PE. If it exists in this range, it will become an oil-based solid cosmetics excellent in storage stability. In the phospholipid composition, less than 25% of PC has poor compatibility with the emulsion, and more than 42% does not function as an oil gelling agent. Further, in the phospholipid composition, less than 25% of PE is difficult to function as an oil gelling agent, and more than 42% of the phospholipid composition is poor in compatibility with the oil agent. As component (a) in this invention, it is possible to use 1 type, or 2 or more types of phospholipids, and when using 2 or more types, the average of a phospholipid composition should just be in this range. As a specific product of such a component (a), Resinol S-10 etc. which are provided by Nikko Chemicals Corporation are mentioned.

Content of the component (a) of this invention is 5-25 mass% (it abbreviates only as "%" hereafter), and 8-20% is preferable. If the content is less than 5%, it is difficult to solidify the oil, resulting in poor storage stability. Moreover, when it exceeds 25%, since spreadability worsens and the smell peculiar to a phospholipid becomes strong, it is not preferable as a cosmetics. If it is 5 to 25% of range, the oily solid cosmetics which have no stickiness, are excellent in brittleness and spreadability to a finger, have good skin affinity, excellent storage stability and high moisturizing effect can be obtained.

Silicone oil which has a kinematic viscosity of 1-100 mm <2> / s at 25 degreeC of the component (b) of this invention is a silicone oil which shows the liquid phase used for cosmetics, and molecular shapes, such as ring shape and a straight chain shape, are not specifically limited. . Specifically, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and dimethyl polysiloxane, methylphenyl polysiloxane, etc. are mentioned as a linear silicone oil. The silicone oil having a kinematic viscosity of 1 to 100 mm 2 / s at 25 ° C. can be used alone or in combination of two or more, and a linear silicone oil is particularly preferable from the viewpoint of being non-sticky in use and excellent in spreadability. In addition, the kinematic viscosity here is measured based on the crude oil and petroleum product-kinetic viscosity test method of the IS-K-2283 description, and the viscosity index calculation method.

As a component (b) of this invention, a commercial item can be used, For example, as linear silicone oil, KF96A-6cs, KF96A-100cs, KF56, KF50-100cs (above, Shin-Etsu Chemical Co., Ltd. product), As SH200C-6cs (above, product made by Toray Dow Corning Corporation), annular silicone oil, SH244, SH344, SH245, DC345, DC246 (more, product made by Toray Dow Corning Corporation), KF-995 (more, product made by Shin-Etsu Chemical Co., Ltd.) Although it is mentioned, it is not limited to this.

Although content of the component (b) of this invention is not specifically limited, 0.5-20% in the whole composition is preferable, and 5-15% is especially preferable. By setting it as this range, the oily solid cosmetics which do not have a sticky feeling and are excellent in storage stability and a moisturizing effect can be obtained.

There is no restriction | limiting in particular if it is a liquid ester oil normally used for cosmetics at 25 degreeC of the component (c) used by this invention, For example, 2-ethylhexyl palmitate, isopropyl palmitate, isopropyl myristate, Isotridecyl isononate, isononyl isononate, neopentylglycol dioctanoate, triisostearic acid glyceryl, tri-2-ethylhexanoic acid glyceryl, propylene glycol dicaprate And propylene glycol dicaprylate, tri (capryl capric) glycerine, and the like, and one or two or more thereof can be used.

Among these, the triester oil obtained from the ester bond of C6-C30 branched fatty acid and glycerin is preferable at the point which does not have a sticky feeling. Specifically, triisostearic acid glyceryl, tri-2-ethylhexanoic acid glyceryl, etc. are mentioned, As a commercial item, TIO (N), Sarakos 3318 (all are the Nisshin Orio company make), TRIFAT S-308 (made by Nikko Chemicals Co., Ltd.), etc. are mentioned.

Although content of the component (c) of this invention is not specifically limited, 30 to 90% in the whole composition is preferable, and 40 to 80% is especially preferable. By setting it as this range, it is possible to set it as the oil-based solid cosmetics excellent in spreadability, non-stickiness, storage stability, and moisturizing effect.

The mass ratio (b) / (c) of the components (b) and (c) in the oil-based solid cosmetics of the present invention is from 0.006 to 0.4. If the blending ratio is less than 0.006, there is stickiness during use, which is not preferable. Moreover, when a compounding ratio exceeds 0.4, it is unpreferable in terms of storage stability. More preferably, (b) / (c) is 0.01-0.2, and when it exists in this range, it is excellent in the spreadability at the time of use, and can obtain the oil-based solid cosmetics which are excellent in storage stability and moisturizing effect, without being sticky.

The oil-based solid cosmetics of the present invention may further contain N-acylicin as component (d) for the purpose of suppressing the sticky feeling after application and improving storage stability. As N-acylicin, if used for a normal cosmetics, it will not specifically limit. For example, Nε-laurolysine, Nε-cocoylysine, Nε-cured tallow fatty acid acyl lysine, N-α-caprylolysine, Nα-laurolysine, Nα-myristolysine, Nα- Oleolysine, N-behenolysine, and the like. These can be used individually or in mixture of 2 or more types. In particular, Nε-laurolysine, which is a water / oil repellent powder, is excellent in terms of suppressing a sticky feeling to the skin, and the shape thereof is preferably a board having a mean particle size of 1 to 30 µm. Amihof LL (made by AJINOMOTO Co., INC.) Etc. is mentioned as a commercial item of such N (epsilon) laurolysine.

Although content of the component (d) of this invention is not specifically limited, 5-20% is preferable in the whole composition, and 10-15% is more preferable. If it is this range, oily solid cosmetics with favorable affinity to skin and improved storage stability can be obtained.

Although the manufacturing method of the oil-based solid cosmetics of this invention is not specifically limited, It is preferable to manufacture by melt filling. For example, the component (a), the component (b), the component (c), and the component (d) are mixed as needed, uniformly melted, and then filled into a container to give an oil-based solid cosmetic with better storage stability. can do. The range of 70 degreeC or more and 80 degrees C or less of the temperature in melt filling is preferable, and dispersibility to the oil-based component of component (a) phospholipid may fall when it is less than 70 degreeC, and when it exceeds 80 degreeC, a component ( a) Phospholipid alteration and deodorization may occur, which is undesirable. It is possible to set it as an oil-based solid cosmetic by cooling what melt-filled in this temperature range to room temperature.

 In the oil-based solid cosmetics of the present invention, any component usually blended into cosmetics or the like, that is, an oil agent, powder, surfactant, or component (a) other than the component (b) and the component (c) within a range that does not interfere with the effects of the present invention. Oil gelling agents, organic modified clay minerals, resins, ultraviolet absorbers, preservatives, antibacterial agents, fragrances, antioxidants, humectants and the like can be added.

 The oil-based solid cosmetics of the present invention can be made into a solid form by using a specific phospholipid without using a solid oil, which is conventionally required. In addition, it may contain a solid oil. As content of the solid oil in that case, it is about 5% or less, Preferably it is 1% or less.

Although the cosmetics of this invention obtained in this way are a solid form, in this specification, a solid form is 35 degreeC by the rheometer (FUDOH RHEOMETER NRM-2002D: product made by Fudokogyo KK), for example. Intrusion load value measured under conditions of needle diameter 1.0 mmφ, penetration speed 6 cm / min, and penetration depth 2.0 mm was 20.0 g or more. And so-called gel form. Moreover, as an oil-based solid cosmetics of this invention, cosmetics, such as skincare, make-up, and hair, are mentioned. More specifically, eye creams, massage charges, pack ingredients, hand creams, body creams, lipsticks, gross, lip treatments, lip creams, lip bases, and the like, in particular, for eyes, lips, etc. It is preferable to use as partial use, and it is especially preferable that it is an eye cream. In addition, it is possible to use as a make-up cosmetics, such as sun creams, creams, essences, packs, haircuts, hair tonics, face, hands and feet, basic cosmetics for the body, foundation, eye shadow, eyeliner, mascara and the like. In addition, the usage is not specifically limited, The method of using a props, such as a spatula, the method of directly apply | coating with a hand and a finger, etc. are mentioned.

Example

Although an Example is given to the following and this invention is demonstrated in more detail, this invention is not limited by these.

Example  One

1-8 of this invention, and Comparative product  1 to 11: solid cream

Solid cream was prepared by the composition shown in Table 1 and Table 2, and the following manufacturing method. As the evaluation of the feeling of use, the panel was evaluated for (1) fragility to the finger, (2) good spreadability, and (3) no stickiness. As storage stability of a solid cream, it was left to stand for 1 month in a 50 degreeC thermostat, and visual evaluation was performed about the change of an external appearance (separation and drainage). The results are shown in Table 1 and Table 2 together.

(Production method)

A: The said component numbers 1-17 are heated to 80 degreeC.

B: The A is mixed and stirred in a disper mixer.

C: The above-mentioned B (80 degreeC) was filled into the container, and it cooled to room temperature, and obtained the solid cream.

(Evaluation method: Feeling)

20 female panelists in their 20s and 40s were allowed to use the solid cream of the present invention and the comparative product so that (1) brittleness to fingers, (2) good spreadability, and (3) no stickiness Or (b) Sensory evaluation using a five-stage evaluation standard, and the average value of the ratings of all panels was determined using the four-stage evaluation criteria.

(A) Five levels of evaluation criteria (fragility to finger)

 (Rating): (rating)

 Very good to take: 5 points

 Good to take: 4 points

 It is usually how to take: Three points

 Too bad to drink: 2 points

 Very difficult to take: 1 point

(B) Level 5 evaluation criteria (good spreadability, no stickiness)

 (Rating): (rating)

 Very good feeling: 5 points

 Somewhat felt: 4 points

 Normal: 3 points

 Not felt very much: 2 points

 Not felt: 1 point

(C) Fourth level criteria

 (Average rating of all panels): (Judgement)

 Average score 4.5 or more: ◎

 Average score 3.5 or above 4.5: ○

 Average score 2.5 or more and less than 3.5: △

 Average score less than 2.5: ×

(Evaluation method: solidification presence)

The appearance of the oil-based solid cosmetics prepared by the above method when cooled to room temperature was visually observed, and determined according to the following four steps of absolute determination criteria (d).

(D) Four-stage absolute determination criteria

 (Evaluation method: solidification presence): (judgment)

 No drainage at all, solidifying: ◎

 Slight drainage but no problem level: ○

 Some drainage is seen and some are not solidifying:

Obviously drainage visible and not solidifying: ×

Each sample was left to stand for 1 month in a 50 degreeC thermostat, and it observed visually about the change of the appearance (degree of drainage), and determined by the following (E) four stages absolute determination criteria.

(E) Fourth level absolute criteria

 (Drainage degree): (judgment)

 No drainage at all: ◎

 Slight drainage but no problem level: ○

 Somewhat drainage: △

 Clearly visible drainage: ×

As apparent from the results of Tables 1 and 2, the solid creams of the inventions 1 to 8 were excellent in brittleness, good spreadability, no stickiness, and storage stability to the fingers. On the other hand, in Comparative products 1 and 2 using hydrogenated phospholipids whose compositions of PC and PE are not included in the above ranges, the hydrogenated phospholipids cannot be uniformly melted in other components, and are solid even when charged and cooled. It was not in shape. Comparative products 3 and 4 using an oil gelling agent other than the phospholipid had poor compatibility between the oil gelling agent and the silicone oil, resulting in separation of the silicone oil without becoming a solid. Comparative product 5 using the stearic acid-cured castor oil which is a semi-solid ester oil at 25 ° C., and Comparative product 6 having a ratio of component (b) / component (c) outside the range of 0.006 to 0.4 did not become solid. Moreover, the comparative product 7 whose content of component (a) phospholipid is outside the range of 5 to 25% did not have enough solidification, and was very bad in storage stability. Comparative products 8 and 9 containing silicone oils having kinematic viscosity of 175 mm 2 / s and 200 mm 2 / s respectively instead of component (b) had poor storage stability, very poor spreadability and stickiness at the time of use. . The comparative product 10 which contained little component (b) and whose component (b) / component (c) ratio is less than 0.006 became solid form, and storage stability was favorable, but stickiness was felt at the time of use. Comparative product 11 having a content of component (a) of more than 25% was excellent in gel formation and storage stability, but was poor in spreadability at the time of use and felt sticky.

Example  2

The inventions 9 to 10 and Comparative product  12 to 15: solid cream

A solid cream was prepared by the composition shown in Table 3 and the following method. With respect to the obtained solid cream, the moisture permeation rate and the shear stress were measured, and the sensory evaluation ((a) spreadability, (b) supple feel after application) was found to be flexible and was pulled from the inside. In this felt state) and (c) a moisturizing effect).

Invention 9 Invention 10 Comparative product 12 Comparative product 13 Comparative product 14 Comparative 15 Hydrogenated Phospholipids
(PC: 32%, PE: 32%) 10 10 - - - - Hydrogenated Phospholipids
(PC: 80%, PE: 5%) - - 10 - - Palmitic Dextrin - - - 10 - - Candelilla wax - - - - 10 6 Triisostearic acid glyceryl 89 84 89 89 89 93 Dimethylpolysiloxane
(10㎡ / s) One One One One One One Nε-laurolysin (Note 2) - 5 - - - -

A: The components shown in Table 3 are heated to 80 ° C.

B: The A is mixed and stirred in a disper mixer.

C: The above-mentioned B (80 degreeC) was filled into the container, and it cooled to room temperature, and obtained the solid cream.

(Moisture growth rate test)

The closure property was examined about the solid cream of invention 9 and the comparative products 12-14. These solid creams were uniformly coated with a coating amount of 0.2 g, coating area of 8.03 cm 2, and thickness of 400 μm on a polyvinylidene chloride film of a Franz diffusion cell containing 0.9% NaCl aqueous solution using a doctor blade.

 The weight change of the cell 8 hours after the start of measurement was measured, and this was calculated as the cumulative moisture permeation rate, and the water evaporation rate per m 2 per hour was calculated from the following equation. In addition, the presence or absence of solidification was evaluated in the same manner as in Example 1. The results are shown in Table 4.

Moisture evaporation rate (g / hr · mm2) = (accumulated water permeation rate (g) / hour (hr)) (100 × 100 / 8.03)

Invention 9 Comparative product 12 Comparative product 13 Comparative product 14 Hydrogenated Phospholipids (PC: 32%, PE: 32%) 10 - - - Hydrogenated Phospholipids (PC: 80%, PE: 5%) - 10 - - Palmitic Dextrin - - 10 - Candelilla wax - - - 10 Triisostearic acid glyceryl 89 89 89 89 Dimethyl Polysiloxane (10mm2 / s) One One One One Nε-laurolysin (Note 2) - - - - Presence of solidification ◎ × ◎ ◎ Moisture evaporation rate (g / hr 2.32 63.70 11.25 43.26

Invention 9 was shown to have a high closure property and excellent moisturizing effect because the rate of moisture evaporation is very low. On the other hand, Comparative Product 12 using phospholipids with different compositions did not form a gel. In addition, Comparative Products 13 and 14, which used other oil gelling agents instead of phospholipids, had high closure rate due to high water evaporation rate.

Shear Stress Measurement

Shear stress was measured in order to evaluate the spreadability at the time of application of the solid creams of the invention 9 and the comparative product 15 of which the penetration load values were almost equal. The shear stress at the point where the straight line deviated from the origin of the shear velocity and shear stress curve was measured by a CSL type stress control rheometer (cone 4 cm 2 °, measurement temperature 15 ° C.). The result is shown in FIG. In addition, the penetration load value was measured by the rheometer (FUDOH RHEOMETER NRM-2002D: product made by Fudoko KK) (φ10 mm, d = 2 mm, 6 cm / min, 35 degreeC, 1 h).

Invention 9 Comparative 15 Hydrogenated Phospholipids (PC: 32%, PE: 32%) 10 - Hydrogenated Phospholipids (PC: 80%, PE: 5%) - Palmitic Dextrin - - Candelilla wax - 6 Triisostearic acid glyceryl 89 93 Dimethyl Polysiloxane (10mm2 / s) One One N ε-laurolysin (Note 2) - - Intrusion Load Value (35 ℃) 54 55

It can be seen from FIG. 1 that even in the same intrusion load, the comparative product 15 has a hard crystal structure and requires a very strong force to destroy the crystal structure. On the other hand, since the gel of the present invention 9 breaks due to weak shearing stress, it became clear that it exhibits smooth spreadability.

Moreover, the scanning electron micrograph of the gel of this invention 9 is shown in FIG. From this photograph, it became clear that the gel of the present invention 9 formed a layered lamellar liquid crystal. Since the layered lamellar liquid crystal is formed, as described above, the evaporation of water is suppressed, and the gel is destroyed by the weak shear stress, and the spreadability is considered to be good.

(Sensory evaluation)

The gels of the inventions 9 to 10 and the comparative products 11 to 12 were each applied as a panel to the face and applied to the face, (a) spreadability at the time of application, (b) supple feeling after application, and (c) moisture retention effect. (A) the 5-step evaluation standard, and the average score of the grade of each sample was determined using (B) the 4-step evaluation standard. The results are shown in Table 6.

(A) Level 5 Evaluation Criteria

(Rating): (rating)

 5 points: very good

 4 points: good

 3 points: normal

 2 points: defective

 1 point: very bad

(B) Level 4 Criteria

(Judgement): (Average score of the rating)

 ◎: average score 4.5 or more

 ○: average score 3.5 or more and less than 4.5

 △: average score 2.5 or more and less than 3.5

 ×: average score less than 2.5

Invention 9 Invention 10 Comparative product 13 Comparative product 14 Hydrogenated Phospholipids (PC: 32%, PE: 32%) 10 10 - - Hydrogenated Phospholipids (PC: 80%, PE: 5%) - - - - Palmitic Dextrin - - 10 - Candelilla wax - - - 10 Triisostearic acid glyceryl 89 84 89 89 Dimethyl Polysiloxane (10mm2 / s) One One One One N ε-laurolysin (Note 2) - 5 - - Good spreading ◎ (4.5) (4.8) × (2) △ (3) Flexibility after use ◎ (4.5) (4.8) × (2) × (3.5) Moisturizing effect ◎ (4.5) (4.8) × (2) △ (3)

Invention 9 and 10 showed the outstanding effect also in any of "good spreadability", "flexibility after use", and "moisturizing effect." In particular, the invention 10 exhibited an even better effect in all by containing the powder laurolycin which is an amino acid derivative. On the other hand, about comparative products 13 and 14 gelled with palmitic acid dextrin and candelilla wax, the sticky feeling of the oil agent to contain is felt, and since it is hard to be affinity with skin, "good spreadability", "after use It was not satisfactory either in "flexibility" or "moisturizing effect."

Example  3: solid shape massage material

The solid massage material of the following prescription was prepared by the following manufacturing method.

(Production method)

A: The said components 1-11 are heated to 80 degreeC.

B: Mix and stir in a dispermixer.

C: The said B (80 degreeC) was filled into the container, it cooled to room temperature, and obtained the solid massage charge.

 The invasive load value at 35 degreeC of the solid massage material of Example 3 showed 120 g, and was excellent in the brittleness to a finger, good spreadability, no stickiness, skin affinity, storage stability, and a moisturizing effect.

Example  4: solid shape hand  cream

 The solid hand cream of the following prescription was prepared by the following manufacturing method.

(Production method)

A: The components 1 to 10 are heated to 80 ° C.

B: The A is mixed and stirred in a disper mixer.

C: The said B (80 degreeC) was filled into the container, and it cooled to room temperature, and obtained the solid hand cream.

The solid hand cream of Example 4 showed 60 g of the penetration load at 35 degreeC, and was excellent in the brittleness to a finger | glove, spreadability, no stickiness, skin affinity, storage stability, and a moisturizing effect.

Example  5: Eye Cream (Solid)

The eye cream of the following prescription was prepared by the following manufacturing method.

A: The components 1 to 13 are heated to 80 ° C.

B: The A is mixed and stirred in a disper mixer.

C: The above-mentioned B (80 degreeC) was filled into the container, it cooled to room temperature, and the eye cream was obtained.

In the eye cream of Example 5, the penetration load value at 35 degreeC showed 80 g, and it was excellent in the brittleness to a finger, good spreadability, no stickiness, skin affinity, storage stability, and a moisturizing effect.

Example  6: body  Cream (Solid)

The body cream of the following prescription was prepared by the following manufacturing method.

(quite)

A: The components 1 to 12 are heated to 80 ° C.

B: The A is mixed and stirred in a disper mixer.

C: The above-mentioned B (80 degreeC) was filled into the container, and it cooled to room temperature, and obtained the solid body cream.

The body cream of Example 6 showed the penetration load value at 35 degreeC of 65 g, and was excellent in the brittleness to a finger, good spreadability, no stickiness, skin affinity, storage stability, and a moisturizing effect.

Claims (6)

Component (a) to (c) below:
(a) 5-25 mass% of phospholipids whose phospholipid composition is 25-42% of phosphatidylcholine and 25-42% of phosphatidylethanolamine;
(b) silicone oils having a kinematic viscosity of 1 to 100 mm 2 / s at 25 ° C .; And
(c) liquid ester oil at 25 ° C
Containing,
An oil-based solid cosmetic according to the present invention, wherein the content ratio (b) / (c) of the component (b) and the component (c) is 0.006 to 0.4. The oil-based solid cosmetic according to claim 1, wherein the component (c) is a triester oil of a C 6 to C 30 branched fatty acid and glycerin. The oily solid cosmetic composition according to claim 1 or 2, wherein the component (c) is either or both of 2-ethylhexanoic acid glyceryl and triisostearic acid glyceryl. The oily solid cosmetic composition according to any one of claims 1 to 3, further comprising 5 to 20% by mass of N-acylcin as component (d). The oily solid cosmetic composition according to any one of claims 1 to 3, which is obtained by filling a container with the components (a) to (c) melted at 70 to 80 ° C and cooling it. The oily solid cosmetic composition according to claim 4, which is obtained by mixing the components (a) to (c) and the component (d) melted at 70 to 80 ° C, filling the container, and cooling them.

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