JPH11322539A - Transparent cosmetic material for body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a transparent cosmetic material for body having fresh feeling in use, capable of satisfactorily realizing invigorating and refrigerant feelings, having a highly transparent appearance and capable of maintaining transparency at a cold temperature for a long time. SOLUTION: This transparent cosmetic material for body comprises (A) 0.001-2 wt.% of (A) a carboxyvinyl polymer, 30-55 wt.% of a lower alcohol, 0.05-1 wt.% of (C) 1-mental, 0.1-1 wt.% of (D) a polyoxyethylene hardened castor oil, an alkali agent and (F) water. When (b) is a wt.% value of the ingredient B, (c) is a wt.% value of the ingredient C and (d) is a wt.% of the polyoxyethylene part in the ingredient D, the value of the formula: (50 d/c)+4b is in the range of 220-240.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent cosmetic for a body, and more particularly to a transparent cosmetic for a body, which has a refreshing use sensation, can fully realize a refreshing sensation and a refreshing sensation when used, and is transparent. The present invention relates to a transparent cosmetic for a body having a high appearance and maintaining this transparency for a long time even under low temperature conditions.

[0002]

2. Description of the Related Art Conventionally, various cosmetics such as body cosmetics contain a volatile solvent such as ethanol, l-menthol, camphor and the like in order to impart a refreshing and refreshing feeling when used. Have been.

[0003]

Generally, in cosmetics for a body for obtaining a refreshing sensation and a refreshing sensation, high transparency is often required in order to obtain a beautiful appearance. However, when a volatile solvent such as ethanol, l-menthol, camphor or the like is added in order to obtain a comfortable refreshing or refreshing feeling, the system becomes turbid, which may disturb the appearance as a transparent cosmetic for a body. . Therefore, the formulation of surfactants has been studied, but in many cases, transparency stability cannot be sufficiently obtained under low-temperature conditions. In some cases, it was difficult to maintain high transparency for a long period of time, especially under low temperature conditions. Therefore, while blending volatile solvents such as ethanol and l-menthol, etc., the system does not become turbid, high transparency is maintained for a long time even under low-temperature conditions, and a refreshing feeling of use and sufficient exhilaration during use. There has been a demand for the development of a transparent cosmetic for a body that can provide a feeling of refreshing and refreshing.

[0004]

[Means for Solving the Problems] In view of such circumstances,
The present inventor has conducted intensive studies to overcome the above drawbacks, and as a result, a specific amount of each of a specific water-soluble polymer, a lower alcohol, l-menthol, a specific polyoxyethylene addition type nonionic surfactant, an alkali agent and By using water and combining the amount of the lower alcohol, the amount of the l-menthol, and the weight of the polyoxyethylene portion of the nonionic surfactant under specific conditions, the system can be maintained at low temperature without turbidity. We have found that high transparency can be maintained over a long period of time, and that a clear cosmetic for body can be obtained that can enjoy a refreshing feeling of use and a refreshing and refreshing feeling when used, and complete the present invention based on this finding. I let it.

That is, the present invention provides the following components (A) to
(F), (A) carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer 0.001-2% by weight (B) Lower alcohol 30-55% by weight (C) l-menthol 0.05-1% by weight (D ) Polyoxyethylene hydrogenated castor oil 0.1 to 1% by weight (E) Alkaline agent (F) Water is contained, and the weight% value of the component (B) is b and the weight% value of the (C) component is c , (D), when the weight% value of the polyoxyethylene portion is d, the formula (50d / c) +
A transparent cosmetic for a body, wherein the value of 4b is in the range of 220 to 240.

Hereinafter, the present invention will be described in detail. The carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer of the component (A) used in the present invention is a general-purpose thickener, but in the present invention, it is neutralized with the alkali agent of the component (E). In addition to imparting transparency to the system, it also gives a refreshing feeling of use as a body cosmetic.

In the present invention, the compounding amount of the carboxyvinyl polymer and / or the alkyl-modified carboxyvinyl polymer as the component (A) is 0.001 to 2% by weight in the whole composition (hereinafter, the weight% is simply indicated by%). . If the content is more than 2%, it is difficult to obtain a refreshing feeling as a body cosmetic. In the present invention, the component (A) includes Carbopol 940, Carbopol 941, Carbopol 1342, Pemulen TR-1, and Pemulen TR-2.
Commercial products such as the above (manufactured by Goodrich Co.) can be used.

The lower alcohol of component (B) used in the present invention is an essential component as a component for imparting a refreshing feeling to the transparent cosmetic for body of the present invention, and has a solubility in l-menthol system. And the amount of the component (C),
With respect to the specific relationship with the structure of the component (D), it contributes to imparting high transparency and stability with time under low-temperature conditions. The lower alcohol of the component (B) is not particularly limited as long as it is a general-purpose alcohol commonly used in cosmetics.
Examples include ethanol and isopropanol, and ethanol is particularly preferred.

In the present invention, the blending amount of the lower alcohol as the component (B) is from 30 to 55%, more preferably from 35 to 50%, based on the whole composition. If it is less than 30%, the refreshing sensation as a body cosmetic for enjoying a refreshing feeling and a refreshing feeling cannot be obtained satisfactorily, and even if it is more than 55%, the refreshing sensation does not greatly improve. Depending on the case, the quality of cosmetics may be impaired, for example, irritation to the skin may increase.

[0010] The l-menthol of the component (C) is an essential component in the transparent cosmetic for a body of the present invention to impart a refreshing sensation and a refreshing sensation when used due to its scent or feel. l-Menthol is not particularly limited as long as it is usually blended in cosmetics, and any of purified products derived from natural products or synthetic products can be used. It is preferable to use a high one.

In the present invention, the blending amount of l-menthol as the component (C) is from 0.05 to 1%, more preferably from 0.3 to 0.7%, based on the whole composition. If it is less than 0.05%, a refreshing feeling and a refreshing feeling cannot be obtained satisfactorily, and if it exceeds 1%, the irritating feeling on the skin may increase depending on the user, and the quality as a cosmetic may be impaired. is there.

The polyoxyethylene hydrogenated castor oil (D) used in the present invention is a nonionic surfactant used in emulsification, solubilization, dispersion systems and the like. The specific relationship between the weight percentage of the part and the blending amounts of the components (B) and (C) has the effect of imparting high transparency to the system and maintaining high transparency for a long time even under low temperature conditions. .

In the present invention, the polyoxyethylene hydrogenated castor oil (D) can be used alone or in combination of two or more.
%, More preferably 0.7 to 0.9%. 0.
If it is less than 1%, the solubilization is insufficient and high transparency cannot be obtained. If it exceeds 1%, stickiness is felt on the skin, and it is difficult to obtain a refreshing feeling. When two or more kinds are used in combination, the weighted average value of the number of moles of polyoxyethylene can be used.

In the present invention, the value of the weight% of the component (B) is b, the value of the weight% of the component (C) is c, and the value of the weight% of the polyoxyethylene portion of the component (D) is d. Then, the value of the equation (50d / c) + 4b is in the range of 220 to 240. Solubilization itself is possible regardless of this range, but within this range, the effect of the present invention,
High transparency of the system and its long-term maintenance, especially under low temperature conditions, are possible. In addition,
The weight% of the polyoxyethylene portion of the component (D) is obtained by dividing polyoxyethylene hydrogenated castor oil into a hydrogenated ricinoleic acid triglyceride portion and a polyoxyethylene portion,
It can be determined by calculating each molecular weight ratio.

The alkali agent of the component (E) used in the present invention is used as a neutralizing agent for the component (A), and is not particularly limited as long as it is an alkali agent that can be generally used in cosmetics. Specifically, organic alkaline agents such as monoethanolamine, diethanolamine, triethanolamine, aminomethylpropanol and aminomethylpropanediol, basic amino acids such as L-arginine and L-lysine, sodium hydroxide and potassium hydroxide Inorganic alkali agents and the like can be exemplified, but in the present invention, triethanolamine and aminomethylpropanol are particularly preferred in order to obtain high transparency.

In the present invention, the alkali agent of the component (E) can be used alone or in combination of two or more.
An amount which can be adjusted to a desired pH between pH 4 and 9 of a system generally used in cosmetics can be appropriately blended.

The water of component (F) used in the present invention is a medium in the transparent cosmetic for a body of the present invention, and purified water is usually used in cosmetics. In the present invention, it is preferable to use purified water.

The transparent cosmetic for a body of the present invention comprises, in addition to the above essential components, a surfactant other than the component (D) in a quantitative and qualitative range that does not impair the effects of the present invention depending on the purpose; Oils such as hydrocarbons, natural fats and oils, esters, silicone and derivatives thereof; polyhydric alcohols such as glycerin and propylene glycol; water-soluble polymers other than the component (A); water-soluble polysaccharides; humectants; Perfume; disinfectant; preservative; antioxidant; other ingredients commonly used in cosmetics, such as cosmetic ingredients for the body, can be blended.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION The transparent cosmetic for a body of the present invention comprises:
It can be embodied in the form of a liquid, gel, or the like, or can be embodied as an aerosol product by being filled with a propellant by a mechanism of a container or the like.

[0020]

The present invention will be further described with reference to the following examples. These do not limit the present invention at all.

Examples 1 to 9 and Comparative Examples 1 to 13 Body lotion (viscous liquid) A viscous liquid body lotion was prepared according to the compositions shown in Tables 1 and 2 and by the following method, and was subjected to a use test to give a fresh feeling during use. The freshness and refreshing sensation during and after use were evaluated and judged, and the transparency immediately after preparation, the transparency after one month at room temperature, and the transparency after one month at low temperature were visually evaluated and judged. The results are shown in Tables 1 and 2.

[0022]

[Table 1]

[0023]

[Table 2]

(Production method) A. Components (1) to (4) and (17) are uniformly dissolved. B. Components (5) to (16) are uniformly dissolved. C. Add B while stirring A and solubilize. D. Fill the container with C to obtain a body lotion.

(Evaluation) Example 1
-9 and Comparative Examples 1-13 were distributed and used, and each of them was evaluated for a refreshing feeling (non-stickiness) at the time of use, a refreshing sensation after use and a refreshing sensation after use. Was evaluated in five steps using the following evaluation criteria (a). Thereafter, the average value of the scores of each sample was determined using the (b) four-step criterion. Regarding the transparency and the transparency stability, the transparency immediately after the preparation, the transparency after standing at room temperature for one month, and the transparency after standing at low temperature (5 ° C.) for one month were visually observed. The judgment was made using the standard. Evaluation items <1> Refreshing feeling during use (non-stickiness) <2> Refreshing feeling and refreshing feeling after use <3> Transparency immediately after preparation <4> Transparency after standing at room temperature for one month <5> Transparency after standing at 5 ° C for 1 month (a) Evaluation criteria (Score): (Evaluation) 4: Very good 3: Somewhat 2: Normal 1: Not so much 0: No (B) Four-step criteria (<1>) , <2>) (Score): (Judgment) 3.0 or more: ２．０ 2.0 or more and less than 3.0: ○ 1.0 or more, less than 2.0: Δ less than 1.0: × (c) 4 Grading criteria (<3> to <5>) (Score): (Judgment) Transparency: ◎ Almost transparent: ○ Slightly cloudy: △ Cloudy: ×

As is evident from the results in Tables 1 and 2, the body lotion of the present invention has a refreshing sensation during use, a refreshing sensation during use and after use, and a refreshing feeling as compared with those of Comparative Examples 1 to 13. It shows excellent effects in all aspects of sensation, transparency immediately after preparation, transparency after 1 month at room temperature, and transparency qualification after 1 month at low temperature (5 ° C.), and has good transparency stability even under low temperature conditions. It has been proven.

[0027]

As described in detail above, the transparent cosmetic for a body of the present invention has a refreshing feeling in use, can fully realize a refreshing sensation and a refreshing sensation when used, and has a highly transparent appearance. It has an excellent effect that the transparency is maintained for a long period of time even under low temperature conditions, and has excellent quality as a transparent cosmetic for a body.

Claims (1)

[Claims] 1. The following components (A) to (F): (A) 0.001-2% by weight of carboxyvinyl polymer and / or alkyl-modified carboxyvinyl polymer (B) 30-55% by weight of lower alcohol (C) l-menthol 0.05 to 1% by weight (D) Polyoxyethylene hydrogenated castor oil 0.1 to 1% by weight (E) Alkaline agent (F) Water is contained, and the weight% value of the component (B) is b, when the weight% value of the component (C) is c and the weight% value of the polyoxyethylene portion in the component (D) is d, the formula (50d / c) +
A transparent cosmetic for a body, wherein the value of 4b is in the range of 220 to 240.