JP4918327B2 - Cleansing composition - Google Patents

Description

The present invention relates to a cleansing composition having high detergency for makeup and excellent foam performance.

Conventionally, in detergents, depending on the purpose and application, various surfactants are selected in consideration of foam performance and detergency, or combinations thereof are used to satisfy the required functions. I came. Among these, anionic surfactants such as higher fatty acid salts, alkyl sulfates, and alkyl sulfonates are excellent as a main component of the skin cleanser, and particularly excellent foam performance such as foam amount, foam quality, and foaming. It has been used as a detergent component that forms the skeleton of the formulation because of its excellent strength and solubility in aqueous systems.

However, these detergents have excellent properties in terms of foam performance, detergency, solubility in water, etc., but sunscreens containing oily foundations, eye makeup products and lipsticks, and oily UV absorbers. When used for oily makeup products such as the above, there is a drawback that foaming is very bad and the detergency cannot be exhibited. For this reason, in general, a cleansing material containing a large amount of oil is often subjected to double cleaning such as once the oil stain is removed and then the face is further cleaned with a cleaning agent. As a method for solving the problems of such detergents having an anionic surfactant as a skeleton, acylalkyl taurine salt, acyl isethionate salt, phosphate ester salt, acyl amino acid salt, alkylaminoacetic acid betaine (For example, refer to Patent Documents 1 and 2), combined use with an amphoteric polymer or a cationic polymer (for example, refer to Patent Document 3), oil content or polyamide modification Addition of silicone and the like has been studied (see, for example, Patent Documents 4 and 5).
JP-A-6-248298 JP-A-6-88100 JP 2003-73257 A JP 59-117598 A JP 2005-281190 A

However, a detergent mainly composed of an anionic surfactant to which an amphoteric surfactant or an amino acid surfactant is added is excellent in foam performance but has a weak detergency for oily makeup. In addition, in the case of adding oil or polyamide-modified silicone, the surfactant component in the cleaning agent was used for emulsification of the oil, the cleaning power was not sufficient, the foam performance was very poor, and it was not satisfactory. Accordingly, it has been desired to develop an improved skin cleanser in these respects.

The present invention has been made by paying attention to such conventional problems, and has an object to provide a cleaning composition having a high detergency for oily makeup and excellent foam performance.

As a result of intensive studies to solve the above problems, the present inventor blended anionic surfactant, polyglyceryl-10 laurate and / or tetraglycerin monolauryl ether at a specific ratio, and further has 8 carbon atoms. By blending ˜16 alkyl glucosides in a specific ratio, it was possible to dramatically increase the cleaning power to make-up and provide a cleaning composition excellent in foam performance.

That is, this invention contains the following component (A)-(C), the compounding quantity of (A) is 15 to 40 weight% with respect to the whole composition, and the compounding quantity of (B) is with respect to the whole composition. 3 to 25% by weight, the blending amount of (C) is 5% by weight or more based on the entire composition, and the blending weight ratio (B) / (A) of the components (B) and (A) is 0.15. The present invention provides a cleaning composition characterized by being -0.65.
(A) Anionic surfactant (B) Polyglyceryl-10 laurate represented by the following formula (1) and / or tetraglycerin monolauryl ether represented by the following formula (2)

(C) C8-C16 alkyl glucoside shown by the following general formula (3).

The cleansing composition of the present invention has a high detergency of an oily makeup and has an excellent effect on foam performance.

Hereinafter, embodiments of the present invention will be described in detail. The anionic surfactant which can be used in the present invention is not particularly limited as long as it has the effects of the present invention. For example, higher fatty acid salts, acylated amino acid salts, alkyl phosphates, polyoxyalkylene alkyl ether phosphates, alkyl sulfates, polyoxyalkylene alkyl ether sulfates, alkyl sulfonates, alkyl benzene sulfonates, alpha olefin sulfones Examples include acid salts, N-acyl-N-methyl taurate salts, higher fatty acid ester sulfonate salts, alkyl ether acetates, polyoxyalkylene alkyl ether acetates, and the like. Examples of the salt used in the anionic surfactant include metal salts such as sodium and potassium, ammonium salts, and lower alkanolamine (for example, mono, di, and triethanolamine) salts. And in the said anionic surfactant, 6-24 are preferable, as for carbon number of hydrophobic parts, such as an alkyl group or an acyl group, the thing of 10-22 carbon atoms is still more preferable, and the thing of 12-18 is especially preferable. The alkyl group or acyl group may be linear or branched. In the anionic surfactant having a polyoxyethylene part, the average added mole number of the polyoxyethylene part is preferably from 0.5 to 5, more preferably from 1 to 5, and particularly preferably from 2 to 3.

Among the above-mentioned anionic surfactants, higher fatty acid salts are preferable. Specifically, animal fats such as beef tallow and lard, vegetable oils such as coconut oil, palm kernel oil, soybean oil, olive oil, and cottonseed oil. Fatty acid mixture obtained by hydrolysis of lauric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, palmitooleic acid, oleic acid, linoleic acid, linolenic acid, isomyristin obtained by separating and purifying them Examples include sodium salts, potassium salts, monoethanolamine salts, diethanolamine salts, triethanolamine salts, 2-amino-2-methylpropanol salts, lysine salts, arginine salts of fatty acids such as acids, isopalmitic acid and isostearic acid. .

The higher fatty acid salt is not only blended as a higher fatty acid salt in the formulation, but also a higher fatty acid and an alkali agent such as sodium hydroxide or potassium hydroxide are separately blended, and in the production process of the cleaning composition of the present invention. It can also be produced by reaction. In this invention, the higher fatty acid salt produced | generated by this method is also contained in a component (A). These higher fatty acid salts can be used alone or in combination of two or more.

Although the compounding quantity of the component (A) of this invention is not specifically limited in the range which has the effect of this invention, 15-40 weight% is preferable with respect to the whole composition. In addition, if it is less than 15 weight%, foam performance may worsen, and even if it exceeds 40 weight%, the effect does not change.

The component (B) polyglyceryl-10 laurate that can be used in the present invention is represented by the following formula (1).

The polyglyceryl-10 laurate represented by the above formula (1) is preferably produced so as to contain a large amount of a monoester from the viewpoint of foam performance. If a large amount of diester or triester is blended, the foam performance may be impaired.

Moreover, the tetraglycerin monolauryl ether of a component (B) is shown by following formula (2).

In addition, these components (B) can be used individually or in combination of 2 types.

Although the compounding quantity of the component (B) of this invention is not specifically limited in the range which has the effect of this invention, 3 to 25 weight% is preferable with respect to the whole composition. If the blending amount is less than 3% by weight, the detergency may be weakened, and even if it exceeds 25% by weight, the effect does not change.

The mass ratio (B) / (A) between the components (A) and (B) is preferably 0.15 to 0.65. If it is less than 0.15, the detergency may be weak, and if it exceeds 0.65, the detergency may be impaired, but the foam performance may be impaired.

The C8-16 alkyl glucoside of the component (C) that can be used in the present invention is represented by the following general formula (3).

The alkyl glucoside represented by the general formula (3) is preferably decyl glucoside and lauryl glucoside. Said alkyl glucoside can be used individually or in combination of 2 or more types.

The compounding quantity of the component (C) in the composition of this invention is 5 weight% or more with respect to the whole composition. If it is less than 5% by weight, sufficient foam performance cannot be obtained.

As long as the skin cleanser composition of the present invention is within the range that does not impair the effects of the present invention, in addition to the essential components of the present invention, components that can be usually added to the cleanser, such as glycerin, diglycerin, sorbitol, etc. Moisturizers, amphoteric surfactants, cationic surfactants, nonionic surfactants and other surfactants, oils and fats, ester oils, hydrocarbon oils, silicone oils and other oils, alkyl cellulose thickeners, high Touch improvers such as molecular compounds, solvents such as ethanol, organic acids such as citric acid and malic acid, pH adjusters such as potassium hydroxide, powders such as talc, cellulose, metal soap, pigments, fragrances, UV absorbers , Fungicides, preservatives, antioxidants, stabilizers, pearlizing agents, chelating agents, dyes, colorants, extracts, scrubbing agents, acne agents, and the like can be appropriately blended.

The pH of the skin cleansing composition of the present invention is preferably about 4 to 11 in consideration of the effect on the skin and the like.

The skin cleansing composition of the present invention can be produced by appropriately mixing each component, and depending on the properties of the components used, etc., if necessary, change the order of injection, heating, cooling, stirring and mixing, etc. To obtain. Moreover, the shape can be prepared according to liking, such as liquid form, cream form, and solid form.

EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited by this Example.

Examples 1 to 4 and Comparative Examples 1 to 3 are shown in Table 1. The formulations of Examples and Comparative Examples were prepared by dissolving oily components such as fatty acids and moisturizers, polyhydric alcohols and preservatives, and surfactants by heating and maintaining at 80 ° C. and preliminarily dissolved in purified water. Add to the potassium oil phase and neutralize. Thereafter, a chelating agent dissolved in purified water was added, mixed with stirring, cooled and produced.

Evaluation items, evaluation results, calculated amount of higher fatty acid soap produced by neutralizing higher fatty acid as component (A) with potassium hydroxide, and weight ratio (B) between component (A) and component (B) Table 1 shows / (A). Moreover, the evaluation method of an evaluation item is demonstrated below.

(1) Evaluation of foam performance A sensory evaluation was conducted by 10 expert panelists, and three items of foam amount, foam quality, and foaming speed were evaluated based on the following criteria. Calculate the average of 10 evaluation points, x less than 3.0, Δ from 3.0 to 4.0, △, 4.0 to 4.5, ○, 4.5 The above was marked as ◎.

(Evaluation criteria for foam volume)
5 points: very many 4 points: slightly more 3 points: normal 2 points: slightly less 1 point: less

(Evaluation criteria for foam quality)
5 points: foam is fine and creamy 4 points: foam is fine but slightly creamy

(Evaluation criteria for foaming speed)
5 points: very fast 4 points: somewhat fast 3 points: normal 2 points: somewhat slow 1 point: slow

(2) Evaluation of detergency Detergency was evaluated by 10 professional panelists. With the use of a commercially available oily foundation on the skin, the detergent composition adjusted to a 20% aqueous solution with tap water was foamed and washed, and the drop of the foundation after rinsing was evaluated based on the following criteria. The average value of the evaluation points of 10 people is calculated, X is less than 2.0 points, Δ is 2.0 points or more and less than 3.0 points, ◯ is 3.0 points or more and less than 4.0 points, 4.0 points The above was marked as ◎.

(Evaluation criteria for cleaning power)
5 points: makeup almost dropped 4 points: makeup fell 3 points: makeup dropped a little 2 points: makeup did not fall much 1 point: makeup did not fall at all

As is clear from the results in Table 1, all of the cleaning compositions of Examples 1 to 4 of the present invention had a high detergency for makeup and excellent foam performance. On the other hand, Comparative Example 1 containing no component (B) was excellent in foam performance but weak in detergency. Moreover, in Comparative Example 2, although the detergency was excellent, there was no alkyl glucoside of the component (C), so that the foam performance remained unsatisfactory. In Comparative Example 3, since the weight ratio (B) / (A) of the component (A) to the component (B) exceeded 0.65, the detergency was high, but there was a problem in the foam performance.

Since the cleansing composition of the present invention has high detergency and excellent foam performance, it can be widely applied to skin cleansing agents such as whole body cleansing agents, facial cleansers and hand soaps.

Claims (1)

The following components (A) to (C) are contained, the blending amount of (A) is 15 to 40% by weight with respect to the whole composition, the blending amount of (B) is 3 to 25% by weight with respect to the whole composition, The blending amount of (C) is 5% by weight or more based on the entire composition, and the blending weight ratio (B) / (A) of the components (B) and (A) is 0.15 to 0.65. A cleansing composition characterized by the above.
(A) Anionic surfactant (B) Polyglyceryl-10 laurate represented by general formula (1) and / or tetraglycerin monolauryl ether represented by general formula (2)
(C) C8-C16 alkyl glucoside represented by the general formula (3)