JP2001039857A - Skin cleaning agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a skin cleaning agent having a moderate hardness even when a large amount of a fatty acid salt having a small number of carbon atoms is contained and excellent in stability in a high-temperature part and a change with the lapse of days by including a maltitol monofatty acid ester and diglycerol in a creamy cleaning agent. SOLUTION: This skin cleaning agent is obtained by including a maltitol monofatty acid ester and diglycerol. A fatty acid in the maltitol monofatty acid ester is preferably 12C lauric acid to 18C stearic acid, especially preferably lauric acid. The maltitol monofatty acid ester is preferably included in an amount of 0.1-20% and the diglycerol is preferably included in an amount of 0.1-30%. The skin cleaning agent has good usability and high stability by formulating the maltitol monofatty acid ester and has a high humectant power by formulating the diglycerol and has the resultant good usability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin cleanser containing maltitol monofatty acid ester and diglycerin, and more particularly to a skin cleanser having high stability and usability.

[0002]

2. Description of the Related Art In order to keep skin beautiful, it is necessary to remove excess sebum, waste products, dirt, etc., and to clean the skin. In particular, sebum produces lipid peroxide by exposure to light, and may cause inflammation and the like on the skin,
Cleaning the skin is very important.

[0003] The most widely used skin cleansing agent is a solid soap, but a creamy cleansing agent is generally used for cleaning the face. The main component of this creamy detergent is generally fatty acid soap. This fatty acid soap can provide a highly usable creamy dosage form by combining those having 12 to 22 carbon atoms. In addition, for the purpose of improving cleansing properties and reducing skin irritation, these fatty acid soaps include taurine-based activators such as coconut oil fatty acid methyltaurine salts, alkyl sarcosinate-based activators such as lauroyl sarcosine salts, Anionic surfactants such as acylamino acid surfactants such as N-coconut fatty acid-L-glutamate and amphoteric surfactants such as betaine surfactants such as betaine lauryl dimethylaminoacetate are often blended. .
It is also common to blend a polyhydric alcohol such as glycerin to reduce moisturizing properties and skin irritation.

[0004]

From the viewpoint of detergency, it is desirable to select a fatty acid soap containing a large amount of laurate or myristate having a small number of carbon atoms.
It is not easy to obtain those having moderate hardness in dosage form. In addition, there is a problem in stability in a high-temperature part and aging due to a low melting point of the fatty acid salt. In addition, laurate is problematic in that it has skin irritation compared to other fatty acid salts. It is desirable to contain a certain amount of stearates and behenates with a large number of carbon atoms in order to obtain good stability in high-temperature parts and aging, but if these substances are included in a large amount, poor foaming and water penetration will occur. There is a problem in usability such as poor quality.

[0005]

Means for Solving the Problems The present inventors have found that by blending maltitol monofatty acid ester and diglycerin with a creamy detergent, even if it contains a large amount of a fatty acid salt having a small number of carbon atoms, it has an appropriate hardness. And found that they have excellent stability in high-temperature parts and aging, and have completed the present invention.

Hereinafter, the present invention will be described in detail. The fatty acid in the maltitol monofatty acid ester used as an essential component in the present invention is lauric acid having 12 carbon atoms to stearic acid having 18 carbon atoms, and any of saturated, unsaturated or linear or branched fatty acids is included in this. included. And
Preferably, it is lauric acid.

The maltitol monofatty acid ester may contain other fatty acid esters such as maltitol difatty acid ester and maltitol trifatty acid ester, or other impurities.

[0008] The amount of maltitol monofatty acid ester in the present invention is not particularly limited, but is preferably 0.1%.
It is 1 to 20%, more preferably 0.5 to 5%.
If it is 0.1% or less, the effect of improving the stability is poor.
When stored at 0 ° C. for one month, the base state becomes hard and there is a problem in usability. If it is 20% or more, the amount of other cleaning components decreases, and the effect as a cleaning agent is impaired.
The base state also tends to be soft.

[0009] Diglycerol used as one of the essential components is also glycerin, triglycerin,
Polyglycerin, such as tetraglycerin, or other impurities may be included.

The amount of diglycerin in the present invention is not particularly limited, but is preferably 0.1 to 30%, and more preferably 1 to 20%. At 0.1% or less, the effect of improving stability is poor, and the base state tends to be hard. At 30% or more, the amount of other cleaning ingredients decreases,
The effect as a detergent is impaired, and the stickiness of diglycerin is increased, which is not preferable in terms of usability.

The present invention is not limited to those containing a fatty acid salt as a main component, and for example, those containing an acyl amino acid salt such as N-acyl-L-glutamate as a main component and other suitable non-fatty acid salts. It is also useful for a generally known face wash such as a cream-like or gel-like face wash composed of an ionic surfactant, an amphoteric surfactant, or an amide-based surfactant such as coconut oil fatty acid diethanolamide.

Further, the skin cleanser of the present invention may contain a pigment, a fragrance, a surfactant, a polyhydric alcohol other than diglycerin, depending on the purpose of use, as long as the effects of the invention are not impaired.
A humectant such as jojoba oil, an anti-inflammatory agent such as dipotassium glycyrrhizinate, and various other water-soluble and oil-soluble components depending on the purpose can be appropriately compounded.

The skin cleansing composition of the present invention contains maltitol monofatty acid ester.
As shown in No. 11, it has good usability and high safety. By blending diglycerin, it has a high moisturizing power, which also has good usability.

[0014]

【The invention's effect】

[Experimental Example 1] The results of evaluation of the prescription containing fatty acid soap as the main component as in Example 1 are shown in the table. As comparative examples, those in which maltitol laurate (maltitol monofatty acid ester) was replaced by purified water (Comparative Example A), those in which diglycerin was replaced by glycerin (Comparative Example B), and maltitol laurate were used Purified water was obtained by replacing diglycerin with glycerin (Comparative Example C). The results are shown in Table 1.

[0015]

[Table 1]

From Table 1, it can be seen that blending maltitol monofatty acid ester and diglycerin shows high stability and usability.

[0017]

[Experimental Example 2] The results obtained when the amount of maltitol monofatty acid ester was changed in the formulation of Example 2 are shown in Table-2.
Shown in The excess or deficiency of the formulation was corrected with purified water.

[0018]

[Table 2]

[0019]

EXPERIMENTAL EXAMPLE 3 Table 3 shows the results when the amount of diglycerin was changed in the formulation of Example 2. The excess or deficiency of the formulation was corrected with purified water.

[0020]

[Table 3]

Examples of the present invention will be described below to specifically describe the present invention. Note that the present invention is not limited to these examples. The ingredients of each component in the formulation are weight%.

Example 1 Facial Wash Cream (A) Myristic Acid 30.0 Palmitic Acid 10.0 Ethylene Glycol Monostearate 2.0 Coconut Fatty Acid Sodium Methyl Taurine 5.0 Lauric Acid Maltitol Ester 2.0 Diglycerin 10. 0 Sodium polyphosphate 0.1 Fragrance trace (B) Purified water 27.9 Potassium hydroxide 8.0 Manufacturing method: (A) is heated to 70 to 75 ° C, and (B) is added to (A) with stirring. Then, saponify and cool to 30 ° C.

Comparative Example A In Comparative Example A, maltitol laurate in part (A) was replaced with purified water. (Purified water was prepared in part (B).)

Comparative Example B In Comparative Example B, diglycerin in part (A) was replaced with glycerin.

Comparative Example C In Comparative Example C, the lauric acid maltitol ester in part (A) was replaced with purified water, and diglycerin was replaced with glycerin. (Purified water was prepared in part (B).)

Example 2 Face Wash Cream (A) Lauric Acid 5.0 Myristic Acid 20.0 Palmitic Acid 10.0 Ethylene Glycol Monostearate 2.0 Lauroylmethyl-β-alanine Sodium 10.0 10.0 Lauric Maltitol Ester 2 0.0 Diglycerin 5.0 Sodium polyphosphate 0.1 Fragrance trace amount (B) Purified water 37.9 Potassium hydroxide 8.0 Production method: (A) is heated to 70 to 75 ° C, and stirred (B) Is added little by little to (A) and saponified, and cooled to 30 ° C.

Example 3 Facial Wash Cream (A) Lauric Acid 5.0 Myristic Acid 20.0 Palmitic Acid 10.0 Ethylene Glycol Monostearate 2.0 Sodium Lauroylmethyl-β-alanine 10.0 10.0 Lauric Maltitol Ester 0 5.5 Diglycerin 1.0 Glycerin 10.0 Sodium polyphosphate 0.1 Fragrance trace (B) Purified water 33.4 Potassium hydroxide 8.0 Production method: (A) is heated to 70 to 75 ° C and stirred. While adding (B) to (A) little by little, saponify and cool to 30 ° C.

Example 4 Face Wash Cream (A) Lauric Acid 5.0 Myristic Acid 20.0 Palmitic Acid 10.0 Ethylene Glycol Monostearate 2.0 Lauroylmethyl-β-alanine Sodium 10.0 10.0 Lauric Maltitol Ester 5 0.0 Diglycerin 20.0 Sodium polyphosphate 0.1 Fragrance trace (B) Purified water 19.9 Potassium hydroxide 8.0 Manufacturing method: (A) is heated to 70 to 75 ° C, and stirred (B) Is added little by little to (A) and saponified, and cooled to 30 ° C.

Example 5 Facial Wash Cream (A) Myristic acid 30.0 Palmitic acid 10.0 Ethylene glycol monostearate 2.0 Coconut oil fatty acid sodium methyltaurine 10.0 Myristic acid maltitol ester 2.0 Diglycerin 5. 0 Sodium polyphosphate 0.1 Fragrance trace (B) Purified water 27.9 Potassium hydroxide 8.0 Manufacturing method: (A) is heated to 70 to 75 ° C, and (B) is added to (A) with stirring. Then, saponify and cool to 30 ° C.

Example 6 Face Wash Cream (A) Potassium N-Lauroyl-L-Glutamate 40.0 Potassium Myristate 2.0 Coconut Oil Fatty Acid Diethanolamide 2.0 Ethylene Glycol Distearate 2.0 Lauric Maltitol Ester 2 0.0 Perfume trace amount (B) Purified water 34.0 1,3-butylene glycol 15.0 Diglycerin 5.0 Production method: (A) is gradually added to (B), and heated to 80 ° C. to dissolve. After dissolution, cool to 35 ° C.

As in Example 1, the cosmetics according to the present invention obtained in Examples 2 to 6 were evaluated for products, and as a result, all of them had high stability and usability.

As described above, the detergent containing maltitol monofatty acid ester and diglycerin can obtain high stability and usability.

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Claims (3)

[Claims] 1. A skin cleanser comprising maltitol monofatty acid ester and diglycerin. 2. The compounding amount of maltitol monofatty acid ester is 0.1-20%, and the compounding amount of diglycerin is 0.1%.
Skin cleanser characterized by being 1 to 30%. 3. The method according to claim 1, wherein the maltitol monofatty acid ester is maltitol laurate.
Skin cleanser