JP2001247447A - Detergent composition for skin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detergent composition for skin which shows excellent bubbling and gives dry feeling on the skin without any skin slimy touch when rinsed and also skin tensive touch after being washed. SOLUTION: This detergent for skin is obtained by including one or more kinds of higher fatty acids and/or its salts, one or more kinds of extracts extracted from a specific plant, e.g. melissa, or the like, and one or more kinds selected from menthol and its derivatives.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin cleansing composition which is excellent in lathering, does not lose skin lubricity during rinsing, has no feeling of tightness of the skin after washing, and imparts a feeling of dryness to the skin. is there.

[0002]

2. Description of the Related Art Conventionally, a soap which is a higher fatty acid salt has been
It is widely used as a skin cleansing agent because it has good lathering and gives a refreshing feel after washing. However, the moisturizing components of the skin are excessively removed by the strong degreasing power of the soap, which may cause a problem such as a feeling of firmness of the skin after washing. To solve this problem, it is known to add a polyhydric alcohol such as propylene glycol or glycerin to the soap as a humectant, or to add other surfactants. As a result, foaming is reduced and the skin becomes slimy at the time of rinsing, so that the feeling of use at the time of washing and after washing is reduced, which is a problem.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide excellent lathering and no slimy skin when rinsing.
An object of the present invention is to provide a skin cleansing composition that gives a feeling of smoothness to the skin without feeling tight after washing.

[0004]

Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies and have found that one or more of higher fatty acids and / or salts thereof and an extract obtained from a specific plant are obtained. A skin cleansing agent containing one or more kinds, and one or more kinds selected from menthol and its derivatives, is excellent in foaming, has no slimy skin upon rinsing, and has a feeling of tightness of the skin after washing. The present invention was found to have excellent effects without any problem, and led to the present invention.

That is, the present invention provides the following component (A):
(B) and (C): (A) one or more of higher fatty acids and / or salts thereof (B) melissa, grape, lavender, tea, quintet,
One or more plant extracts selected from birch, chamomile, hamamelis, and horsetail, (C) a skin cleansing composition comprising one or more selected from menthol and its derivatives. To provide.

One or more of the higher fatty acids and / or salts thereof of the component (A) used in the present invention may be either saturated or unsaturated, and may have 8 carbon atoms.
~ 22 higher fatty acids and / or salts thereof are preferred.
Specific examples include lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, coconut oil fatty acids and palm kernel fatty acids. The counter ions constituting the salt include alkali metal salts such as sodium and potassium, ammonium salts,
Monoethanolamine salt, triethanolamine salt, 2
Alkanolamine salts such as -amino-2-methylpropanol; and basic amino acid salts such as lysine and arginine. When a higher fatty acid salt is blended, it is not always necessary to blend the higher fatty acid salt, and it is preferable to react an alkali metal hydroxide such as sodium hydroxide and potassium hydroxide. May be included.

[0007] These higher fatty acids and / or salts thereof can be used alone or in combination of two or more, and preferably 5 to 40%, particularly preferably 10 to 40% of the total composition. Below this range, sufficient foaming and detergency cannot be obtained, and blending beyond this range may undesirably degrade the stability of the system.

As the plant extract of the component (B) used in the present invention, melissa, grape, lavender, tea, quintet, birch, chamomile, hamamelis, and horsetail are preferable. The extraction site of the plant when obtaining the plant extract is not particularly limited, but it is particularly preferable to extract the plant extract from flowers, leaves, stems, roots and seeds. At the time of extraction, flowers, leaves, stems, roots, seeds, etc. may be used alone or in combination of two or more,
Whole grass can also be used. Plants can be extracted raw or dried.

Although there is no particular limitation on the extraction solvent,
Alcohols such as water, ethanol, methanol, 1,3-butylene glycol, glycerin, diglycerin, polyglycerin, squalane, and isopropyl alcohol;
Known solvents such as octyldodecyl myristate, ethyl ether, acetone and the like can be used.

[0010] Further, as an extraction method, a method of extracting by impregnation at room temperature, cooled or heated, a method of extraction using a distillation method such as steam distillation, and a method of squeezing a raw plant to obtain an extract Examples include the squeezing method and the like, and these methods are used alone or in combination of two or more.

The plant extract can be used singly or in combination of two or more.
%, Particularly preferably 0.01 to 5%. Below this range, sufficient sensory characteristics may not be exhibited. Further, even if it is blended beyond this range, there is not only a problem in terms of cost because sufficient sensory properties are not exhibited in proportion to the blended amount, but also the cleaning effect as a detergent, the feeling of use, and the stability are reduced. It is not preferable because of fear.

As the menthol (C) and its derivatives used in the present invention, menthol, menthyl acetate, menthol, isomenthone, derivatives and isomers thereof, and the like can be used. Microencapsulated) or encapsulated with cyclodextrin or the like.

[0013] Essential oils or blended fragrances containing these may be used, and for example, essential oils such as peppermint oil (light oil) may be used. in this case,
The blending amounts of essential oils, compounded fragrances, and the like are blended so that the content of menthol or a derivative thereof contained therein falls within the range of the blending amount of component (C).

Menthol and its derivatives can be used singly or in combination of two or more. 0.0001 to 3%, preferably 0.001 to 2%, of the total composition. If it is below this range, sufficient sensory characteristics will not be exhibited
There are cases. Also, even if it exceeds this range,
Not enough sensory properties to match the amount
Not only has problems in terms of cleaning, but also has the same level of cleaning effect as a cleaning agent
It is not preferable because the use feeling, safety and stability may be deteriorated .

[0015] In addition to the higher fatty acids and / or their salts, other anionic, amphoteric or nonionic surfactants usually used in detergents are used in the skin cleansing composition of the present invention. May be blended in a range that does not impair. For example, polyoxyethylene lauryl ether sulfate, polyoxyethylene fatty acid amide ether sulfate,
Coconut oil fatty acid sodium methyltaurine, sodium polyoxyethylene lauryl ether acetate, sodium polyoxyethylene laurate monoethanolamide acetate, coconut oil fatty acid ethyl ester sulfonate, monoalkyl phosphate, lauryl sulfosuccinate, lauryl iminodiacetic acid Salt, lauroylmethyl-β-alanine salt,
Anionic surfactants such as lauroyl-L-glutamate and lauroyl-L-aspartate. As the amphoteric activator, sodium lauryl dimethylaminoacetate,
Amidopropyl betaine laurate, 2-alkyl-N
-Hydroxyethyl-N-carboxymethylimidazolinium betaine, laurylhydroxysulfobetaine and the like. The nonionic activator is fatty acid diethanolamide, fatty acid monoethanolamide, fatty acid isopropanolamide, lauryl dimethylamine oxide,
Examples include polyoxyethylene alkyl ethers and alkyl glucosides.

Further, the skin cleansing composition of the present invention contains other components which are usually blended in the skin cleanser, such as humectants, oils, water-soluble polymers, pigments, chelating agents, bactericides, and ultraviolet absorbers. , Fragrance and the like can be blended.

The skin cleansing composition of the present invention can be produced according to a usual method.
It can be widely applied to skin cleansing agents such as facial cleansers and hand soaps.

[0018]

According to the present invention, there is provided an excellent skin cleansing composition which is excellent in lathering, does not lose skin lubricity during rinsing, has no skin tightness even after washing, and imparts a feeling of dryness to the skin. Can be.

[0019]

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

Examples 1 to 4 and Comparative Examples 1 to 4 Body Soaps Body soaps were prepared according to the compositions shown in Tables 1 and 3 and by the following production method, and were used at the time of use, foamed and washed using the following test methods. The strength and the feeling of smoothness after rinsing were determined. The results are shown in Tables 2 and 4.

[0021]

[Table 1]

[0022]

[Table 2]

[0023]

[Table 3]

[0024]

[Table 4]

(Preparation method) A body soap was obtained by a conventional method.

(Evaluation Method) <Bubbling> For the body soaps of Examples 1 to 4 and Comparative Examples 1 to 4, 0.5% diluted solutions of the respective materials were prepared, and the bubbling was measured according to the Ross-Miles test method. (A) The determination was made in four steps according to the foaming determination criteria. However, the sample was a 2% aqueous solution (using CaCO ₃ , 50 ppm artificial hard water), and the temperature was 40 ° C.

(A) Foaming criterion ◎: Bubble amount 220 mm or more…: Bubble amount 200 mm or more, less than 220 mm…: Bubble amount 150 mm, less than 200 mm ×: Bubble amount less than 150 mm

<Detergency> A certain amount (1.0 g) of olive oil is adhered to a cotton cloth of 5 cm × 5 cm and dried to obtain a contaminated cloth. A contaminated cloth was placed in a 1% diluted solution of each of the materials of Examples 1 to 4 and Comparative Examples 1 to 4, and immersed at 30 ° C. for 30 minutes, and then the amount of triglyceride derived from olive oil in the detergent solution was measured. The removal rate was determined from the measured value and the formula (1), and the detergency was determined in four stages according to the detergency criteria (b).

[0029]

(Equation 1)

(B) Detergency evaluation criteria Removal rate 60% or more: 以上 Removal rate 50% or more, less than 60%: ○ Removal rate 40% or more, less than 50%: Δ Removal rate less than 40%: ×

<Usability at the time of use><Smoothness after rinsing> Ten samples of the samples of Examples 1 to 4 and Comparative Examples 1 to 4 were distributed and used by 10 expert evaluation panelists. The ease of use during use and the feeling of smoothness after rinsing were evaluated using the following (c) five-level evaluation criteria. Thereafter, the average value of the scores of each sample was determined using (d) criteria.

(C) Five-level evaluation criteria (Score) (Evaluation) 5: Very good 4: Good 3: Normal 2: Somewhat bad 1: Bad

(D) Judgment criteria (Score): (Judgment) 4.0 or more: 3.0 or more, but less than 4.0: ２．０ 2.0 or more, less than 3.0: Δ, less than 2.0: ×

As is clear from the results in Tables 1 and 2,
It was demonstrated that the cleaning agent of the present invention foamed and showed good results in detergency, and also had a good dry feeling after washing. On the other hand, in Comparative Examples 1 to 4, a product satisfying all items was not obtained.

Example 5 The following facial cleanser was prepared and evaluated by the above method. All items were excellent evaluations.

Example 6 The following body soap was prepared and evaluated by the above method. The foaming was good, there was no slimy feeling, there was no feeling of tightness, and a smooth feeling was shown.

Example 7 The following hand soap was prepared and evaluated by the above method. The foaming was good and the feeling of use was excellent.

Example 8 The following solid soap was prepared and evaluated by the above method. The foaming was good and the feeling of use was excellent.

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Claims (1)

[Claims] 1. The following components (A), (B) and (C): (A) one or more of higher fatty acids and / or salts thereof (B) melissa, grape, lavender, tea, quintuplets,
A skin cleansing composition comprising one or more plant extracts selected from birch, chamomile, hamamelis and horsetail, and (C) one or more selected from menthol and its derivatives.