JP3487390B2 - Emulsion powder cosmetic - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milky liquid powder cosmetic, and more particularly to a milky liquid powder cosmetic having a refreshing feeling when applied to the skin and having a smooth and smooth powdery feeling. The milky powder cosmetics can be applied to a basic cosmetics by blending a moisturizing agent, or can be used as a coating type aroma cosmetic by blending an appropriate fragrance, and can be widely applied.

[0002]

2. Description of the Related Art Conventionally, the technology of incorporating powder into cosmetics has been known to clean the skin by allowing the powder to absorb components such as dirt on skin, excess lipid, and sweat. In addition, it has been widely used for the purpose of enhancing sebum resistance and perspiration resistance due to its absorption effect, improving makeup retention, or enhancing the feeling of use by utilizing its dry feel. For example, as a lotion, there is a lotion containing calamine (zinc oxide containing about 0.5% ferric oxide), which is more commonly used as a summer lotion having a drying, cooling and protecting effect. ing.
However, since it is basically intended for moisturizing or astringent, the feeling of use has not been considered so much. In addition, in reality, a large amount of powder cannot be blended in view of the balance of emulsification, so that it has not been possible to impart a dry feeling, and the refreshing feeling was not satisfactory. On the other hand, baby powder and talcum powder are known as powder cosmetics for the body, which is used for the whole body after bathing in the summer or after shaving, to give a dry feel to the skin and absorb sweat and moisture. ing. Further, a dusting powder for the purpose of perfuming the skin by adding a fragrance to the powder is also known. However, these powdery cosmetics for body used for dusting have a problem that they are inconvenient in terms of usability such as scattering of the powder and soiling clothes and the surrounding area. Furthermore, after dusting, the powder becomes white. There was a drawback that it remained. Further, the refreshing feeling on the skin was not yet satisfactory.

The present invention has been made in view of the above conventional circumstances, and is a powder cosmetic for the whole body,
It is an object of the present invention to provide a milky liquid powder cosmetic which has a refreshing feeling, has a smooth feeling to use, is non-greasy, and has no whitening.

[0004]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that a considerable amount of a lower alcohol and a porous and / or water-absorbing powder such as corn starch are applied to the skin. When it is applied, a refreshing sensation due to lower alcohol is imparted, and a large amount of powder can be blended to obtain a powder lotion for the body which is rich in powdery feeling. It has been found that a stable emulsion liquid powder cosmetic can be obtained by suppressing whitening and mixing a higher alcohol and an alkyl-modified carboxyvinyl polymer.

That is, the present invention is represented by a lower alcohol, a porous and / or water-absorbing powder, a liquid oil, a higher alcohol having 12 to 24 carbon atoms, and a molecular weight represented by the following general formula (1). Is a blend of 500,000 to 3,000,000 alkyl-modified carboxyvinyl polymers, and is a milky liquid powder cosmetic.

[0006]

[Chemical 2]

(In the formula, R ¹ is a hydrogen atom or has 10 carbon atoms.
~ 30 alkyl groups, n, n ', m and m'are n +
n '+ m + m' = an arbitrary number such that 40 to 100 is obtained, and 1 is an arbitrary number such that the molecular weight falls within a predetermined range. )

Next, the structure of the present invention will be described. Examples of the lower alcohol used in the present invention include methanol, ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like, and among them, ethanol is particularly preferable. The blending amount is 50.0 to 92.0% by weight in the total amount of the lotion,
It is preferably 60.0% by weight or more. When the amount of lower alcohol is less than 50.0% by weight, it is difficult to obtain a satisfactory refreshing feeling. Thus, by adding a large amount of lower alcohol, when applied to the skin, the heat of vaporization during evaporation of the lower alcohol imparts a refreshing feeling to the skin, and after application, the lower alcohol component evaporates soon. By leaving a considerable amount of powder components on the skin, a dry feel is imparted to the skin.

The porous and / or water-absorbing powder used in the present invention includes starches obtained from corn and potato, silicic acid anhydride, talc, kaolin, magnesium silicate silicate, magnesium metasilicate magnesium silicate. , Calcium alginate, synthetic and natural hectorite, bentonite and other powders. Among these, the most preferable powders from the viewpoint of usability are corn starch, potato starch and silicic acid anhydride, and corn starch is particularly preferable. The blending amount is 5.0 to 30.0% by weight, and preferably,
It is 10.0 to 20.0% by weight. If the content of the porous and / or water-absorbing powder is less than 5.0% by weight, the powdery feeling after application to the skin will be poor, and if it exceeds 30.0% by weight, the powder will be distorted during application to the skin.

The liquid oil used in the present invention includes hydrocarbon-based oils such as liquid paraffins, squalane and squalene, and silicone oils such as dimethylpolysiloxane, methylpolysiloxane, methylphenylpolysiloxane and methylhydrogenpolysiloxane. , Synthetic ester oils such as isopropyl adipate, hexyldecyl isostearate, cetyl octanoate, octyl palmitate, isopropyl myristate, glyceryl isooctanoate, avocado oil, olive oil, sesame oil, soybean oil, camellia oil, corn oil, sunflower oil , Liquid natural oils such as jojoba oil, coconut oil, castor oil, mink oil and fish oil. Of these, from the viewpoint of usability and whitening suppression,
Cetyl octanoate, octyl palmitate and jojoba oil are preferred, especially cetyl octanoate. The blending amount is 2.0 to 20.0% by weight, and preferably,
It is 4.0 to 10.0% by weight. By adding a liquid oil component, it is possible to prevent whitening after application to the skin. If the amount of the liquid oil component is less than 2.0% by weight, whitening occurs after application to the skin, and if it is more than 20.0% by weight, a sticky feeling is obtained.

The mixing ratio of the porous and / or water-absorbing powder and the liquid oil is such that (porous and / or water-absorbing powder) / (liquid oil) is in the range of 0.5 to 3.0. It is particularly preferably 1.5 to 2.5. (Porous and / or water-absorbing powder) / (Liquid oil) is 0.5
If it is less than, a sticky feeling will appear. Further, when it exceeds 3.0, it becomes white.

Examples of the higher alcohol having 12 to 24 carbon atoms used in the present invention include lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol and other straight chain alcohols, and monostearyl glycerin. Branched chain alcohols such as ether (batyl alcohol), 2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldecanol, isostearyl alcohol, and octyldodecanol can be mentioned. The blending amount is from 0.01 to
It is 5.0% by weight, preferably 0.5 to 5.0% by weight. Emulsion stability can be imparted by blending a higher alcohol. If the blending amount of the higher alcohol is less than 0.01% by weight or more than 5.0% by weight, the stability becomes poor.

The alkyl-modified carboxyvinyl polymer used in the present invention acts as an emulsifier,
Alkyl methacrylic acid acrylate copolymer, such as CA
RBOPOL 1342, PEMULEN TR-1, PEMULEN TR-2 (BFGoodric
h company) is known. The compounding amount of the alkyl-modified carboxyvinyl polymer is 0.01 to 2.0% by weight in the emulsion composition. 0.01% by weight
If it is less than 2.0%, the stability tends to be poor, and if it exceeds 2.0% by weight, a squeaky feeling will appear.

The milky liquid powder cosmetic of the present invention can be added to a lower alcohol, a porous and / or water-absorbing powder, a liquid oil, a higher alcohol, an alkyl-modified carboxyvinyl polymer, and a fragrance to further improve the skin. It is possible to apply to a fragrance composition for the purpose of perfume. As the flavor in this case, any of animal-based, plant-based, mineral-based natural flavors and synthetic flavors can be used. The blending amount of the fragrance is such that a sufficient fragrance can be obtained as a fragrance product, but it is generally 0.5 to 30.0% by weight,
It is preferably 1.0 to 10.0% by weight.

The milky powder cosmetics referred to in the present invention are:
It means a cosmetic used for the purpose of skin conditioning, protection, activation, etc. of the skin of the face, hands, neck, feet, scalp and other whole body.

In the cosmetic of the present invention, in addition to the above components,
Other oil components, surfactants, polymer compounds, water, preservatives, and other components that are usually blended in emulsified cosmetics can be blended as appropriate according to the application, purpose, and the like.

[0017]

EXAMPLES The present invention will now be described with reference to examples. In the examples, the compounding amount is% by weight.

Examples 1 to 34 and Comparative Examples 1 to 15 Emulsion powder cosmetics having the compositions shown in Tables 1 to 6 were produced, and (1) powdery feeling, (2) refreshing feeling, (3) when applied to skin The powder was evaluated for its smoothness, (4) no whitening after skin application, (5) no sticky feeling, and (6) stability. Each evaluation method is as follows. The results are also shown in Tables 1 to 6.

[Evaluation Method] (1) Evaluation of Powder Feeling 10 monitors applied body powder lotions of the examples and comparative examples to the skin, and evaluated the powdery feel after drying. The evaluation results are represented by the following display. ⊚: Of 10 people, 8 or more answered that they had a powdery feeling. ○: 5 to 7 people out of 10 answered that they had a powdery feeling. Δ: 3 to 4 out of 10 answered that they had a powdery feeling. ×: Less than 3 out of 10 answered that they had a powdery feeling.

(2) Evaluation of Refreshing Feeling Usability evaluation Ten monitors applied the body powder lotions of Examples and Comparative Examples to the skin in appropriate amounts, and evaluated the refreshing feel at the time of application. The evaluation results are represented by the following display. ◎; 8 out of 10 respondents answered that they have a refreshing feeling. ○: 5 to 7 out of 10 people answered that they had a refreshing feeling. Δ: 3 to 4 people among 10 people answered that they had a refreshing feeling. ×: Less than 3 out of 10 answered that they had a refreshing feeling.

(3) Evaluation of powder non-uniformity during skin application Usability evaluation 10 monitors applied an appropriate amount of the body powder lotion of Examples and Comparative Examples to the skin, and the powder non-uniformity during application to skin was evaluated. The lack was evaluated. The evaluation result is a four-level evaluation of very good (score 4), good (score 3), slightly good (score 2), and poor (score 1). The average value of 10 persons is taken and displayed in the following display. did. A: Average value is 3.5 or more. ◯: Average value is 2.5 or more and less than 3.5. Δ: Average value is 1.5 or more and less than 2.5. X: Average value is less than 1.5.

(4) Evaluation of non-whitening after application to skin Usability evaluation 10 monitors applied an appropriate amount of body powder lotion of Examples and Comparative Examples to skin, and evaluated non-whitening after drying. did. The evaluation result is a four-level evaluation of very good (score 4), good (score 3), slightly good (score 2), and poor (score 1). The average value of 10 persons is taken and displayed in the following display. did. A: Average value is 3.5 or more. ◯: Average value is 2.5 or more and less than 3.5. Δ: Average value is 1.5 or more and less than 2.5. X: Average value is less than 1.5.

(5) Evaluation of Non-Stickiness Usability Evaluation Ten monitors applied the body powder lotions of the Examples and Comparative Examples to the skin in an appropriate amount, and evaluated the non-stickiness during application. The evaluation results are represented by the following display. ⊚: 8 out of 10 people answered that there was no sticky feeling. ○: 5 to 7 out of 10 answered that there was no sticky feeling. Δ: 3 to 4 out of 10 people answered that there was no sticky feeling. ×: Less than 3 out of 10 responded that there was no sticky feeling.

(6) The stability sample was filled in a 50 ml sample tube (glass bottle), allowed to stand at room temperature for 1 week, and then evaluated visually. ○: Not separated at all. Δ: Slightly separated. X: Very separated.

[0025]

[Table 1] ─────────────────────────────────── Example 1 2 3 4 5 6 7 8 9 10 ─────────────────────────────────── Ethanol 50 50 58 60 60 60 68 70 70 80 Corn starch 5 20 30 5 10 20 10 10 15 10 Cetyl octoate 2 10 10 2 5 10 20 5 10 5 Stearyl alcohol 0.5 2 0.5 1 3 5 0.5 3 1 1 PEMULEN TR-1 ^{* 1} 0.01 0.5 1.0 0.2 0.5 0.5 0.5 0.8 0.8 0.8 Chelating agent Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Purified water Residual residue Residual residue Residual residue Residual residue Residual residue ───────────────────────── ───────── Powder feeling ○ ◎ ◎ ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Cool feeling ○ ○ ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No powder twist ◎ ◎ ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ White float No ◎ ◎ ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No stickiness ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Stability ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ────────────── ─────────────────────

* 1: In the general formula (1), R ¹ is hydrogen or a mixture of alkyl groups having 10 to 30 carbon atoms, n + n '+ m + m'.
= 55, molecular weight = 1,500,000

[0027]

[Table 2] ─────────────────────────────────── Example 11 12 13 14 15 16 17 18 19 ─────────────────────────────────── Ethanol 60 60 60 60 60 60 60 60 60 Potato starch 20 − − − − − − − − Silicic anhydride − 20 − − − − − − − Talc − − 20 − − − − − − Kaolin − − − 20 − − − − − Magnesium silicoaluminate − − − − 20 − − --- McAluminate metasilicate -------- 20 ---- Calcium alginate --------- 20--Hectorite ----------- 20-Bentonite ------------- 20 Octanoic acid Cetyl 10 10 10 10 10 10 10 10 10 Octyl palmitate − − − − − − − − − Stearyl alcohol 2 2 2 2 2 2 2 2 2 PEMULEN TR-1 * 1 1 1 1 1 1 1 1 1 1 Chelating agent qs qs qs qs qs qs qs qs qs Purified water Balance balance balance balance balance balance balance balance balance ──── ─────────────────────────────── Powder feeling ◎ ◎ ○ ○ ○ ○ ○ ○ ○ Cool feeling ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No powder sway ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No white float ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No stickiness ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Stability ○ ○ ○ ○ ○ ○ ○ ○ ○ ────────────────────────────────────

[0028]

[Table 3] ─────────────────────────── Example 20 21 22 23 24 ───────────── ─────────────── Ethanol 60 60 60 60 60 Potato starch 20 − − − − Silicic anhydride − 20 − − − Talc − − − − − Kaolin − − 20 − − Silicic acid Magnesium aluminate --- --- Metasilicate magnesium aluminate ---- 20-Calcium alginate --- --- Hectorite --- --- 20 Bentonite --- --- Cetyl octanoate --- --- Octyl palmitate 10 10 10 10 10 Stearyl alcohol 2 2 2 2 2 PEMULEN TR-1 ^{* 1} 1 1 1 1 1 1 Chelating agent Suitable amount Suitable amount Suitable amount Suitable amount Purified water Residual residue Residual residue Residual residue ────────────── ───────────── Powder feeling ◎ ◎ ○ ○ Refreshing feeling ◎ ◎ ◎ ◎ ◎ ◎ No powder twist ◎ ◎ ◎ ◎ ◎ No whitening ◎ ◎ ◎ ◎ ◎ ◎ No stickiness ◎ ◎ ◎ ◎ ◎ Stability ○ ○ ○ ○ ○ ────── ─────────────────────

[0029]

[Table 4] ─────────────────────────────────── Example 25 26 27 28 29 30 31 32 33 34 ─────────────────────────────────── Ethanol 92 − − 60 60 60 60 60 60 60 Propanol − 60 − − − − − − − − Isopropanol − − 60 − − − − − − − Corn starch 5 20 20 15 10 10 10 10 10 10 Cetyl octanoate 2 10 10 10 4 5 5 5 5 5 Stearyl alcohol 0.01 0.5 0.5 0.5 1 0.01 − − 3 3 Cetyl alcohol − − − − − − 3 − − − Behenyl alcohol − − − − − − − − 3 − − PEMULEN TR-1 ^{* 1} 0.9 0.8 0.8 0.8 0.8 0.8 1 1 1 2 Chelating agent Suitable amount Suitable amount Suitable amount Right quantity Right quantity Right quantity Right quantity Right quantity Right quantity Right quantity Purified water Residual Residual Residual Residual Residual Residual Residual Residual Residual ───────────────── ────────────────── Powder feeling ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Refreshing feeling ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No powder swaying ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No white float ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ No stickiness ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Stability ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ─── ────────────────────────────────

[0030]

[Table 5] ─────────────────────────────────── Comparative Examples 1 2 3 4 5 6 7 8 9 10 11 ─────────────────────────────────── Ethanol 10 30 30 30 40 40 40 60 60 50 − Corn Danfone 15 2 40 15 2 40 20 2 8-10 Cetyl Octanoate 3 0.5 20 3-10 5 1 22 10 10 Stearyl Alcohol -1 1 0.5-1 -1 1 0.5 1 1 PEMULEN TR-1 ^{* 1} 1-1 0.5 1 1 0.5 − 0.5 1 1 Chelating agent Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Suitable amount Purified water Residual Residual Residual Residual Residual Residual Residual Residual ──────────── ───────────────── Powder feeling ◎ × ◎ ◎ × ◎ ◎ × ○ × ◎ Cooling feeling × △ △ △ △ △ △ ◎ ◎ ◎ ○ × No powder wrinkle ◎ ◎ × ◎ ◎ × ◎ ◎ ◎ × No whitening × × ◎ × × × × ◎ ◎ ◎ ◎ No stickiness ◎ ◎ ◎ ○ ◎ ◎ ◎ ◎ ◎ ◎ × × × Stability × × ○ ○ × ○ × × ○ ○ ○ ─── ────────────────────────────────

[0031]

[Table 6] ────────────────────────── Comparative Example 12 13 14 15 ────────────── ──────────── Ethanol 60 60 60 60 Silicone resin powder 10 15 − − Polyethylene beads − − 10 15 Cetyl octanoate 5 10 5 10 Stearyl alcohol 2 2 2 2 PEMULEN TR-1 ^{* 1} 0.8 0.8 0.8 0.8 Chelating agent Suitable amount Suitable amount Suitable amount Purified water Residual residue Residual residue ────────────────────────── Powdery feeling × × × × Cool feeling ◎ ◎ ◎ ◎ No powder sway ◎ ◎ ◎ ◎ ◎ No whitening ◎ ◎ ◎ ◎ ◎ No stickiness ◎ ◎ ◎ ◎ Stability ○ ○ ○ ○ ───────────────── ──────────

Example 35 Milky Liquid Powder Cosmetics with Fragrance Ethanol 60.0% by Weight Propylene Glycol 2.0 Glycerin 4.0 Corn Starch 10.0 Cetyl Octanoate 4.0 Behenyl Alcohol 3.0 PEMULEN TR-2 1.0 (In the general formula (1), R ¹ is hydrogen or a mixture of alkyl groups having 10 to 30 carbon atoms, n + n '+ m + m' = 55, molecular weight = 1,000,000) Chelating agent Appropriate amount Dyes Appropriate amount Perfume Appropriate amount Purified water residue

[0032]

As described above, the milky liquid powder cosmetic of the present invention has a dry powdery feeling when applied to the skin and is full of a refreshing feeling.
It is non-greasy, stable, and free from whitening.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masami Kodama 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Shiseido Daiichi Research Center (72) Inventor Kiyomiyazawa 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Company Shiseido Daiichi Research Center (56) Reference JP-A-8-301719 (JP, A) JP-A-8-34719 (JP, A) JP-A-5-201826 (JP, A) JP-A-2- 19310 (JP, A) JP-A 1-268615 (JP, A) JP-A 63-130525 (JP, A) JP-A 3-5412 (JP, A) JP-A 7-89834 (JP, A) JP-A-56-16559 (JP, A) JP-A-8-245357 (JP, A) JP-A-7-149621 (JP, A) JP-A-8-59436 (JP, A) JP-A-7-187950 (JP, A) Special Table Flat 8-506583 (J P, A) Special table Hira 9-501431 (JP, A) Special table Hira 9-501176 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (4)

(57) [Claims] 1. A lower alcohol, a porous and / or water-absorbing powder, a liquid oil, a higher alcohol having 12 to 24 carbon atoms, a general formula (1) shown below, and a molecular weight of 500,000 to 3,000,000 and alkyl-modified carboxyvinyl polymer, the lower alcohol from 50.0 to 92.0 wt%, the porous
And / or water-absorbent powder 5.0 to 30.0% by weight,
Liquid oil content 2.0-20.0% by weight, carbon number 12-24
0.01 to 5.0% by weight of higher alcohol, alkyl
0.01 to 2.0% by weight of carboxyvinyl polymer
A milky liquid powder cosmetic characterized by being blended in a blending amount . [Chemical 1] (In the formula, R ¹ is a hydrogen atom or an alkyl group having 10 to 30 carbon atoms, n, n ′, m and m ′ are n + n ′ + m + m ′.
= 40 to 100, and l represents an arbitrary number such that the molecular weight falls within a predetermined range. ) 2. A porous and / or absorbent powder corn starch, claim 1 Symbol placement of milky powder cosmetic is a potato starch or silicic anhydride. 3. A liquid oil is cetyl octanoate, milky powder cosmetic of claim 1 Symbol placement is octyl palmitate or jojoba oil. 4. A milky powder cosmetic according to any one of claims 1 to 3, was further compounded perfume.