JP2002047120A - Cosmetic for aged skin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means for optically compensating loss of unevennesses such as sulci cuts and cristae cutis. SOLUTION: This cosmetic is obtained by including powders having 200-500 μm average maximum particle length and spherical powders (except powders having 200-500 μm average maximum particle length).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic which is useful for optically correcting the smoothness of the skin surface due to aging and the like.

[0002]

2. Description of the Related Art It is already known that the skin changes variously with aging. For example, unevenness such as skin crevices and skin grooves is reduced, and the collagen fiber bundle structure of the dermis is disturbed. It is known to do. Of these, it is known that triterpenic acids such as ursolic acids act effectively in reconstructing the collagen fiber bundle structure of the dermis. However, with regard to the reduction of unevenness such as skin ridges and skin grooves, neither means for recovering the unevenness nor means for recovering the unevenness are known, and there is no choice but to accept the morphological change accompanying aging as it is. It has been desired to develop a countermeasure as a cosmetic for such morphological change due to aging.

[0003] In the field of cosmetics, to respond to morphological changes due to aging, 1) transdermal administration of highly moisturizing ingredients such as sodium hyaluronate and heparin-like substances to improve the water content in the skin. 2) treating with a cosmetic containing a film-forming substance, forming a film and extending slack such as wrinkles, 3) filling translucent powder into wrinkles and pores,
Although it is known to make the appearance smooth, etc., any treatment for loss of unevenness such as skin sulcus and skin hills is impossible.

On the other hand, as a raw material of cosmetics, powder having a maximum length of 200 to 500 μm on average has not been known at all, and such powder has an optical characteristic of loss of unevenness of skin grooves and hills. It is not known at all that it is useful for correction. Therefore, such a powder and a spherical powder (the maximum length is 200 to 50 on average)
The spherical powder excluding the powder having a maximum length of 200 to 500 μm on average is simply referred to as a spherical powder. ) Is not known. Furthermore, by combining such a powder with a spherical powder, it is possible to suppress the loss of the optical effect due to the warpage during application of the powder having a maximum length of 200 to 500 μm on average, and to improve the correction effect. Was also not known at all.

[0005]

SUMMARY OF THE INVENTION The present invention has been made under such circumstances, and it is an object of the present invention to provide a means for optically correcting the loss of irregularities such as skin grooves and hills. .

[0006]

In view of such circumstances, the present inventors have sought a means for optically compensating for the loss of unevenness such as skin crevices and crevices, and as a result of intensive research efforts, the inventors have found that By using a cosmetic, characterized by containing a powder having an average length of 200 to 500 μm and a spherical powder (excluding a powder having a maximum length of 200 to 500 μm on average), The inventors have found that various corrections are possible, and have completed the invention. That is, the present invention relates to the following technology. (1) A cosmetic comprising a powder having a maximum length of 200 to 500 μm on average and a spherical powder (excluding a powder having a maximum length of 200 to 500 μm on average). (2) A powder having a maximum length of 200 to 500 μm on average,
The cosmetic according to (1), wherein the cosmetic is fibrous. (3) A powder having a maximum length of 200 to 500 μm on average,
The cosmetic according to (1) or (2), which is a synthetic fiber. (4) The cosmetic according to any one of (1) to (3), which is used for optical correction of smoothing of the skin surface due to aging. (5) being a makeup cosmetic,
(1) The cosmetic according to any one of (4) to (4). Hereinafter, the present invention will be described in detail focusing on embodiments.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION (1) Powder having a maximum length of 200 to 500 μm as an essential component of the cosmetic of the present invention The cosmetic of the present invention has a maximum length of 200 to 500 μm on average.
m, more preferably 250 to 400 μm, as an essential component. The shape of such a powder is not particularly limited as long as it is known in cosmetics, and examples thereof include spherical, plate-like, and fibrous shapes. Among these, a particularly preferable shape is a fibrous shape. The components constituting these powders are not particularly limited as long as they are used in cosmetics, and include, for example, foldable talc,
Examples include foldable mica, nylon fiber, silk fiber, polyester fiber, silica, sericite, etc. Among them, particularly preferred are translucent ones, such as nylon fiber, silk fiber or polyester fiber. . Among these three, nylon fibers are particularly preferable in terms of availability and optical effects. These can be obtained by crushing or cutting the existing powder raw material, loosening the degree, and sphering the powder material. Some of such materials are commercially available as raw materials in fields other than cosmetics, and can be used. In the crushing, a method of impregnating the ore with water or the like and peeling it in the direction in which the crystals are attached, such as talc and flakes, is used. ) Can be adjusted advantageously. In the present invention, such a maximum length is 200 to 500 μm on average, more preferably 250 to 500 μm.
The 400μm powder compensates for the age-related loss of the three-dimensional irregularities created by the skin crevices and hills, and provides optical characteristics close to the optical effect of large irregularities when young. Give.
Even if the maximum length is less than 200 μm or more than 500 μm, such an effect becomes extremely small. In the cosmetic of the present invention, such a powder may contain only one kind, or may contain two or more kinds in combination. In the cosmetic of the present invention, such a maximum length is 200 to 500 μm on average, and more preferably 250 to 4 μm.
The preferable content of the powder of 00 μm is 0.1 to
It is 30% by weight, more preferably 1 to 10% by weight. This is because if the amount is too small, the effect may not be exhibited, and if the amount is too large, the function as a cosmetic may be impaired.

(2) Spherical powder which is an essential component of the cosmetic of the present invention The cosmetic of the present invention is characterized by containing a spherical powder. The spherical powder as referred to in the present invention means a powder having a shape with a distortion or deviation from a true sphere of about 20% or less on average, and specifically, spherical silica beads, spherical acrylic resin powder,
Examples thereof include nylon powder, silk powder, spherical calcium silicate, spherical magnesium silicate, methylsiloxane network polymer, cross-linked methylpolysiloxane, and surface-treated products thereof. Examples of the surface treatment include a treatment for baking silicone such as hydrogen methyl polysiloxane and dimethyl polysiloxane, a treatment with a silane coupling agent having an alkyl group or a fluoroalkyl group, a treatment with diethanolamine fluoroalkyl phosphate, aluminum stearate and stearin. Preferable examples include a coating treatment with a metal soap such as magnesium acid. Among such spherical powders, the maximum length, which is another essential component, which overlaps with the powder having an average of 200 to 500 μm, is 200 to 50 on average.
The spherical powder of 0 μm is not included in the spherical powder of the present invention. Since these are all commercially available as raw materials for cosmetics, they are extremely easy to obtain. In the cosmetic of the present invention, these spherical powders can be contained solely or in combination of two or more.
In the cosmetic of the present invention, these spherical powders have an effect of spreading powder having an average length of 200 to 500 μm on the skin without being distorted. In the cosmetic of the present invention, the content of these spherical powders is preferably 1 to 1 in total.
It is 40% by weight, more preferably 2 to 20% by weight. This means that for this content, the maximum length is on average 2
Without impairing the optical effect of the powder of 00 to 500 μm,
This is because this deviation can be prevented. That is, if the spherical powder is less than 1% by weight, it may not be possible to prevent the warpage, and if it is more than 40% by weight, the optical effect of the powder having a maximum length of 200 to 500 μm on average may be impaired. Because.

(3) Cosmetic of the present invention The cosmetic of the present invention is characterized by containing the above-mentioned essential components. However, for example, basic cosmetics such as creams, emulsions, and lotions, and makeup cosmetics such as foundations, under makeup, white powder, cheek color, eye color, and the like can be preferably exemplified. Among these, particularly preferred are makeup cosmetics which can be contained in a natural form without a sense of incongruity, and particularly preferred are base makeup cosmetics such as under makeup, foundation and white powder. Of these, under makeup cosmetics that can correct the optical effect derived from the surface shape of the skin at the position closest to the skin are particularly preferable. As described above, the cosmetic of the present invention imparts an optical correction of unevenness to the surface of the skin in which the unevenness of the skin ridges and condyles has become poor due to aging change, by an optical effect, It is preferably applied for optical correction of the accompanying smoothing of the skin surface. In the cosmetic of the present invention, the essential component, the maximum length of which is 200 to 500 μm on average, more preferably 250 to 40 μm.
In addition to the 0 μm powder and the spherical powder, it can contain optional components usually used in cosmetics. Such optional components include, for example, hydrocarbons such as petrolatum and microcrystalline wax, esters such as jojoba oil and gay wax, tallow, triglycerides such as olive oil,
Silicones such as dimethylpolysiloxane and methylphenylpolysiloxane; higher alcohols such as cetanol and oleyl alcohol; fatty acids such as stearic acid and oleic acid; polyhydric alcohols such as glycerin and 1,3, -butylene glycol; Nonionic surfactants such as ethylene fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene hardened castor oil, glyceryl monofatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, alkyl sulfate, polyoxyethylene alkyl sulfate, Anionic surfactants such as alkyl phosphates, cationic surfactants such as quaternary ammonium salts, thickeners such as ethanol and carbopol, parabens, benzalkonium chloride, and hibitene gluconate Preservatives, ultraviolet absorbers, antioxidants, pigments, powders, and the like other than the above essential components may be exemplified.
The cosmetic of the present invention can be produced by treating these optional components and the above essential components according to a conventional method.

[0010]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but it goes without saying that the present invention is not limited to only these Examples.

Example 1 An under-makeup cosmetic, which is a cosmetic of the present invention, was prepared according to the following formulation. That is, b) and b) are each heated to 80 ° C., and c is added to b to disperse well, and b) is gradually added thereto while stirring, and then cooled by stirring to obtain an under makeup cosmetic (under makeup 1). Was. At the same time, Comparative Example 1 in which the powder composition was replaced with nylon fiber only, Comparative Example 2 in which only spherical acrylic resin was replaced, Comparative Example 3 in which only talc was replaced, and Control Example 1 in which only water was replaced were prepared. . The surface shape of the skin was measured in advance using a replica, and 40 panelists with reduced unevenness were selected and divided into four groups without bias. The right half face of these panelists was treated with the under makeup 1, Comparative Example 1, Comparative Example 2, and Comparative Example 3 among the above-described under makeup cosmetics, and the left half face was treated with the under makeup of Control Example 1. After that, make-up was made with a foundation having the following prescription, and it was compared with Control Example 1 by how much each make-up looked younger, and it was ++ (score 2):
Very rejuvenated, + (score 1): clearly rejuvenated, ±
(Score: 0.5): Slightly rejuvenated,-(Score: 0): Judgment was made based on the criteria of not being young and invisible. Table 1 shows the results of this determination. From this, it can be seen that the undermakeup of the present invention has the highest effect of making it look youngest, and then this effect is seen in Comparative Example 1. It can also be seen that the other two products have no such effect. Also, it can be seen that there is a large difference in effect between Undermake 1 and Comparative Example 1. From this, it can be seen that such an optical effect is derived from the nylon fiber, and the effect is effectively expressed by the spherical powder in the cosmetic of the present invention. (Prescription of under make 1) a) Squalane 2 parts by weight Microcrystalline wax 1 part by weight Glyceryl triisooctate 4 parts by weight Cetyl isooctanoate 12 parts by weight Sorbitan monooleate 0.4 parts by weight Stearic acid 1.5 parts by weight Stearin Acid monoglyceride 3 parts by weight POE (6) sorbitan monostearate 0.5 part by weight POE (45) stearic acid ester 1 part by weight butylparaben 0.1 part by weight b) 1,3-butanediol 5 parts by weight methylparaben 0.3 Parts by weight Arginine 0.6 parts by weight Water 64.6 parts by weight C) Nylon fiber (300 μm) 2 parts by weight Spherical acrylic resin 2 parts by weight Talc 2 parts by weight

(Formulation of foundation) Silicone treated * 30 parts by weight titanium dioxide Silicone treated * 10 parts by weight Silicone treated * 20 parts by weight Silicone treated * 20 parts by weight Silicone treated * 30 parts by weight Dimethicone 5 parts by weight Octyldodecyl oleate 5 parts by weight Silicon treatment *: Hydrogenmethylsiloxane treated by baking 5% based on the amount of powder (baking temperature 200 ° C)

[0013]

[Table 1]

<Example 2> The undercoat 1 of Example 1 and Comparative Example 1 were applied on the skin and stripped with a cellophane tape.
Dispersion of the distribution of nylon fiber on the top
It was determined as the average and standard deviation of the number of nylon fibers of mx 1 mm. Table 2 shows the results. From this, Under Make 1
It can be seen that the distribution of nylon fibers is significantly improved as compared with Comparative Example 1. That is, it is understood that the uneven distribution of the nylon fibers is improved by the spherical acrylic resin as the spherical powder, and this is a difference in the effect of the first embodiment.

[0015]

[Table 2]

Example 3 Under-makeup cosmetics were prepared according to the following formulation. That is, b) and b) are each heated to 80 ° C., b) is added to b) and dispersed well
B was slowly added to the mixture while stirring, and the mixture was stirred and cooled to obtain under makeup cosmetics (under makeups 2 to 4). For this, the same evaluation as in Example 2 was performed. Table 3 shows the results. This indicates that any spherical powder can be used. B) Squalane 2 parts by weight Microcrystalline wax 1 part by weight Glyceryl triisooctanoate 4 parts by weight Cetyl isooctanoate 12 parts by weight Sorbitan monooleate 0.4 parts by weight Stearic acid 1.5 parts by weight Stearic acid monoglyceride 3 parts by weight POE ( 6) Sorbitan monostearate 0.5 part by weight POE (45) stearic acid ester 1 part by weight butyl paraben 0.1 part by weight b) 1,3-butanediol 5 parts by weight methyl paraben 0.3 parts by weight Arginine 0.6 part by weight Part Water 64.6 parts by weight C) Nylon fiber (300 μm) 2 parts by weight Spherical powder * 2 parts by weight Talc 2 parts by weight * Details are shown in Table 3.

[0017]

[Table 3]

Example 4 An under-makeup cosmetic was prepared by reducing the amount of spherical powder according to the following formulation. That is, b) and b) are each heated to 80 ° C., c is added to b, and the mixture is dispersed well. B is gradually added thereto with stirring, and cooled by stirring to obtain an under makeup cosmetic (under makeup 5). Was. This was evaluated in the same manner as in Example 2, and as a result, the average was 23.9, and the standard deviation was 12.3. Thus, in the cosmetic of the present invention, the content of the spherical powder was 1 % By weight or more;
It turns out that the weight% or more is more preferable. B) Squalane 2 parts by weight Microcrystalline wax 1 part by weight Glyceryl triisooctanoate 4 parts by weight Cetyl isooctanoate 12 parts by weight Sorbitan monooleate 0.4 parts by weight Stearic acid 1.5 parts by weight Stearic acid monoglyceride 3 parts by weight POE ( 6) Sorbitan monostearate 0.5 part by weight POE (45) stearic acid ester 1 part by weight butyl paraben 0.1 part by weight b) 1,3-butanediol 5 parts by weight methyl paraben 0.3 parts by weight Arginine 0.6 part by weight Part Water 65.6 parts by weight C) Nylon fiber (300 μm) 2 parts by weight Spherical acrylic resin 1 part by weight Talc 2 parts by weight

Example 5 A finished white powder (Foundation 1) was prepared according to the following formulation. That is, the component (a) was mixed with a variable shell mixer, pulverized with a pulverizer equipped with a 0.9 mm round-hole screen, and sprayed with the component (b) while mixing with a Henschel mixer to perform coating. This was finished and pulverized by a pulverizer equipped with a 1 mm herringbone screen, packed in a metal plate and pressed to obtain a finished white powder. Separately, a control example 2 was prepared in which the nylon fiber (300 μm) was replaced with talc, and 10 panelists were evaluated in the same manner as in Example 1. The average score was determined to be 1.4.
Thus, it was confirmed that the same effect was obtained even when the cosmetic of the present invention was applied to a foundation. A) Silicone treated * titanium dioxide 3 parts by weight Silicone treated * iron oxide 1 part by weight Silicone treated * sericite 20 parts by weight Silicone treated * mica 34 parts by weight Methylsiloxane network polymer 10 parts by weight Nylon fiber (300 μm) 20 parts by weight b Dimethicone 5 parts by weight Octyldodecyl oleate 5 parts by weight Silicon treatment *: Hydrogenmethylsiloxane treated by baking 5% based on the amount of powder (baking temperature 200 ° C)

<Example 6> In the same manner as in Example 5, foundations 2 to 4 were prepared by changing the amount of nylon fiber.
When this was similarly evaluated, the results shown in Table 4 were obtained. Thus, in the cosmetic of the present invention, the preferable content of the powder having a maximum length of 200 to 500 μm is 0.1 to 30% by weight in total, and more preferably 1 to 30% by weight.
It turns out that it is 10 weight%. A) Silicone treated * titanium dioxide 30 parts by weight Silicone treated * iron oxide 10 parts by weight Silicone treated * sericite 20 parts by weight Silicone treated * mica 34 parts by weight Methylsiloxane network polymer 10 parts by weight Nylon fiber (300 μm) ** talc * * B) Dimethicone 5 parts by weight Octyldodecyl oleate 5 parts by weight Silicon treatment *: Hydrogenmethylsiloxane treated by baking 5% based on the powder amount (baking temperature 200 ° C) ** Details are shown in Table 4.

[0021]

[Table 4]

<Example 7> A similar finished white powder (foundation 5 to 5) was prepared by changing the length of nylon made in Example 5.
7) was prepared and similarly evaluated. Table 5 shows the results. From the above, in the cosmetic of the present invention, a preferable average maximum length is 200 to 500 μm on average, and more preferably 25 to 500 μm on average.
It turns out that it is 0-400 micrometers. B) Silicone-treated * titanium dioxide 3 parts by weight Silicone-treated * iron oxide 1 part by weight Silicone-treated * sericite 20 parts by weight Silicone-treated * mica 34 parts by weight Methylsiloxane network polymer 10 parts by weight Nylon fiber (** m) 20 Parts by weight b) Dimethicone 5 parts by weight Octyldodecyl oleate 5 parts by weight Silicon treatment *: Hydrogenmethylsiloxane treated by baking 5% based on the amount of powder (baking temperature 200 ° C) ***: See Table 5 Is written.

[0023]

[Table 5]

Example 8 A cosmetic cream according to the present invention was prepared according to the following formulation. That is, b, b, and b were each heated to 70 ° C, kneaded well with b, diluted by adding b, and gradually added with c dispersed in d and emulsified,
The mixture was stirred and cooled to obtain a cream (basic cosmetic). This product not only optically corrects the flatness of the skin, but also has the effect of correcting the disturbance of the dermal collagen fiber bundle. B) Maltitol (70% aqueous solution) 3 parts by weight Glycerin 3 parts by weight 1,3-butanediol 4.6 parts by weight Ethyl ursoleate 0.1 part by weight 0.1 parts by weight butylparaben 0.2 parts by weight methylparaben triglycerin Diisostearate 5 parts by weight b) Liquid paraffin 10 parts by weight Microcrystalline wax 5 parts by weight Light isoparaffin 15 parts by weight c) Water 48 parts by weight d) Polyester fiber (250 μm) 2 parts by weight Methylsiloxane network polymer 4 parts by weight

Example 9 A cosmetic cream according to the present invention was prepared according to the following formulation. That is, b, b, and b were each heated to 70 ° C, kneaded well with b, diluted by adding b, and gradually added with c dispersed in d and emulsified,
The mixture was stirred and cooled to obtain a cream (basic cosmetic). This product not only optically corrects the flatness of the skin, but also has the effect of correcting the disturbance of the dermal collagen fiber bundle. B) Maltitol (70% aqueous solution) 3 parts by weight Glycerin 3 parts by weight 1,3-butanediol 4.6 parts by weight Ethyl ursoleate 0.1 part by weight 0.1 parts by weight butylparaben 0.2 parts by weight methylparaben triglycerin Diisostearate 5 parts by weight b) Liquid paraffin 10 parts by weight Microcrystalline wax 5 parts by weight Light isoparaffin 15 parts by weight c) Water 48 parts by weight d) Silk fiber (350 μm) 2 parts by weight Methylsiloxane network polymer 4 parts by weight

Example 10 A cosmetic cream according to the present invention was prepared according to the following formulation. That is, a, b, and c were each heated to 70 ° C, kneaded well with a, diluted by adding b, and gradually added with a dispersion of d, emulsified, stirred and cooled to obtain a cream ( Basic cosmetics). This not only optically corrects the flatness of the skin,
It also has the effect of correcting the disorder of the dermal collagen fiber bundle. B) Maltitol (70% aqueous solution) 3 parts by weight Glycerin 3 parts by weight 1,3-butanediol 4.6 parts by weight Ethyl ursoleate 0.1 part by weight 0.1 parts by weight butylparaben 0.2 parts by weight methylparaben triglycerin Diisostearate 5 parts by weight b) liquid paraffin 10 parts by weight microcrystalline wax 5 parts by weight light isoparaffin 15 parts by weight c) water 48 parts by weight d) cleavage talc (200 μm) 2 parts by weight methylsiloxane network polymer 4 parts by weight

[0027]

According to the present invention, it is possible to provide a means for optically correcting the loss of unevenness such as a skin groove and a skin hill.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Nakamura 27-1, Takashimadai, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture Inside the Yokohama Laboratory, Polar Chemical Industry Co., Ltd. (72) Inventor Yuka Suzuki 27, Takashimadai, Kanagawa-ku, Yokohama-shi, Kanagawa Address 1 Inside the Yokohama Research Laboratory of Polar Chemical Industry Co., Ltd. (72) Inventor Ayako Kuroda 27-1 Takashimadai, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture F-term inside the Yokohama Research Laboratory of Polar Chemical Industry Co., Ltd. AC352 AC402 AC422 AC442 AC482 AC582 AD072 AD092 AD152 AD162 AD532 BB21 CC03 CC05 CC12 EE06

Claims (5)

[Claims] 1. A powder having a maximum length of 200 to 500 μm on average and a spherical powder (a maximum length of 200 to 500 μm on average)
(Excluding powders of the above). 2. The cosmetic according to claim 1, wherein the powder having a maximum length of 200 to 500 μm on average is fibrous. 3. The cosmetic according to claim 1, wherein the powder having a maximum length of 200 to 500 μm on average is a synthetic fiber. 4. The cosmetic according to claim 1, wherein the cosmetic is used for optical correction of smoothing of the skin surface accompanying aging. 5. The cosmetic according to claim 1, which is a make-up cosmetic.