JP2006328325A - Detergent composition, and washing agent and cosmetic using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent composition suitable for washing agents and cosmetics for hair and skin that can give an excellent conditioning effect to hair and skin and can keep an excellent effect over a long period of time. <P>SOLUTION: The detergent composition comprises an aqueous solution containing an acid type anionic surfactant and an oil component or is prepared by adding a basic compound to an aqueous solution containing an acid type anionic surfactant and an oil component, wherein the acid type anionic surfactant can be a mixture of an anionic surfactant and an acid, and the oil component preferably contains a sugar-fatty acid ester, and preferably further contains polyvinylpyrroridone. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cleaning composition, and more particularly to a cleaning composition that improves the conditioning effect by finely dispersing oil and can be suitably used for hair and skin cleaning, cosmetics, and the like. .

  In recent years, permanents and hair dyes have become popular, which has contributed to hurting hair such as the loss of the smooth texture of hair. For this reason, it has become common for shampoos to be blended with conditioning ingredients that provide a treatment effect.

  As conditioning ingredients, oils such as quaternary ammonium salts, silicones and waxes have been widely used. However, since quaternary ammonium salts are difficult to biodegrade, they tend to be avoided from the growing awareness of environmental issues. In addition, the wax has a disadvantage that it is inferior in conditioning effect compared to the quaternary ammonium salt and silicone.

  Therefore, various proposals have been made to improve the conditioning effect by finely dispersing oil such as wax in the cleaning composition (for example, Patent Documents 1 and 2).

  However, in order to finely disperse the oil, a long and strong stirring is required, and the obtained finely dispersed composition has a problem that it tends to change with time and has poor storage stability such as cosmetics.

  On the other hand, soap is usually used as a skin cleanser, but after washing, a refreshing feeling can be obtained, but it often causes a hand feeling and a refreshing feeling, maintaining a refreshing feeling as it is and using it milder to the skin There is a desire for a cleaning material that provides a feeling.

In addition, in kitchen detergents, washing dishes with bare hands all the time has caused skin problems such as rough hands, so recently, emphasis has been placed on safety, such as the prevention of rough hands. Tertiary amine oxide, alkyl betaine, imidazoline with the sulfate ester of alcohol as the main agent, polyoxyethylene alkyl ether and fatty acid alkylol amide as auxiliary agents, and combined with thickening and foam increasing effects to prevent rough handing Type amphoteric surfactant, amino acid anionic surfactant blended (Patent Documents 3 to 5) and alkyl ether carboxylate as the main agent, fatty acid alkylolamide as auxiliary agent, tertiary amine oxide Various so-called mild detergent compositions have been proposed for the skin, such as those formulated (Patent Document 6). Not satisfactory.
JP 2002-179536 A Japanese Patent Laid-Open No. 10-324617 JP-A-2-86698 Japanese Patent Laid-Open No. 2-92998 JP-A-2-117996 JP-A-2-245097

  Therefore, in view of the above circumstances, the present invention can easily disperse oil in the composition, gives an excellent conditioning effect to the hair and skin, and maintains the excellent effect over a long period of time. It is an object of the present invention to provide a cleaning composition suitable for hair and skin cleaning agents such as shampoos and rinses, facial cleansers and body shampoos, cosmetics, and kitchen detergents.

  In order to achieve the above object, the present invention is a cleaning composition comprising an aqueous solution containing an acid type anionic surfactant and an oil component, and further comprises an acid type anionic surfactant and an oil component. The present invention provides a cleaning composition characterized by adding a basic compound to an aqueous solution.

  In the present invention, the acid type anionic surfactant may be obtained by mixing an anionic surfactant and an acid.

  In the cleaning composition of the present invention, the oil preferably contains a sucrose fatty acid ester, and further preferably contains polyvinyl pyrrolidone.

The cleaning composition according to any one of claims 1 to 4.

  In the cleaning composition of the present invention, it is preferable that an average particle size of the oil particles dispersed in the composition is 10 to 1000 nm.

  The cleaning agent and cosmetics of the present invention are characterized by comprising the above-described cleaning composition, and can be used as hair and skin cleaning agents and kitchen detergents.

  According to the cleaning composition of the present invention, the acid type anionic surfactant exhibits the effect of refining the oil, and can be finely dispersed in the aqueous solution. It can be easily adsorbed on the skin and the amount of washing using the same and the conditioning effect of cosmetics can be remarkably improved, and the application range can be broadened by making the aqueous solution transparent by reducing the oil content. Furthermore, by neutralizing with a basic compound, the degree of neutralization of the composition is moderated, the fine particles of oil are maintained stably over a long period of time, and deterioration and deterioration due to aging are suppressed, improving the storage stability of cleaning materials and the like. be able to.

  Moreover, by containing sucrose fatty acid ester as an oil component, the fine dispersion of the oil component can be facilitated, and the conditioning effect can be further improved.

  Furthermore, by containing an appropriate amount of polyvinylpyrrolidone, the viscosity of the composition is moderated to improve stability, and stable adsorption and fixing effects on hair and skin can be exhibited for a long period of time.

  The average particle size of the oil finely dispersed in the composition is preferably 10 to 1000 nm. When the average particle size exceeds 1000 nm, the adsorptivity to hair and skin is reduced, the film does not adhere uniformly, and the conditioning effect is insufficient. The particles are likely to aggregate and the temporal stability is also lowered, so that a cleaning material and a cosmetic using the particles are not satisfactory.

  And according to the cleaning agent and cosmetics of the present invention, shampoos, rinses, treatments and other cleaning agents having a high conditioning effect on the hair, and skin cleansing agents such as facial cleansing foams and body shampoos were used. In some cases, it is possible to provide a skin cleanser or cosmetic that does not cause the skin to become washed and have a crisp feel.

  The cleaning composition of the present invention contains a mixture of an acid type anionic surfactant and an oil component, and the surface activity of the surfactant acts by being diluted with water, and the oil component as a conditioning component is contained in the aqueous solution of the composition. The conditioning effect can be improved by finely dispersing the finely dispersed oil particles into the hair and skin after washing.

  The acid type anionic surfactant used in the present invention is not particularly limited, and an unneutralized acid type anionic surfactant can be used. In addition, the acid type anionic surfactant and a hydrophilic anionic surfactant or amphoteric surfactant can be used in combination, whereby the degree of neutralization of the composition can be controlled.

Alternatively, the acid form may be obtained by adding and mixing an acid to the neutralized anionic surfactant. In this case, a desired acid type anionic surfactant can be easily obtained. At this time, it is not necessary to make all the anionic surfactants in acid form, and only part of them may be made acid form. In this case, the amount of the acid type anionic surfactant is preferably 10 mol% or more of the total amount of the anionic surfactant.
The anionic surfactant is not particularly limited, but a carboxylic acid type anionic surfactant having a carboxyl group is preferable. This is because when an anionic surfactant is mixed with an acid and used as an acid-type anionic surfactant, a carboxyl group-containing surfactant is used rather than an anionic surfactant having a sulfone group or a sulfate ester. This is because the acid form can be obtained with a small amount of acid. The amount of acid added is preferably 5 to 20 mol% of the amount of anionic surfactant.

  Examples of the anionic surfactant include alkyl sulfate, polyoxyethylene (hereinafter referred to as POE) alkyl ether sulfate, POE alkyl ether acetate, POE lauryl ether sulfate, POE lauryl ether acetate, and POE alkyl sulfosuccinic acid. Bisalt, α-olefin sulfonate, acylmethyl taurate, acyl taurine, acyl methyl alanine, acyl alanine, acyl sarcosine, acyl glutamate, acyl glycine, acyl isethionate, fatty acid salt, etc. , One of them may be used, or two or more may be used in combination.

  The acid used for converting the anionic surfactant into an acid form may be any acid, but is preferably an organic acid having a carboxyl group, such as citric acid, lactic acid, malic acid, oxalic acid, and glutamic acid. This is because the organic acid has good compatibility with the oil, so that the stability of the cleaning material and cosmetics can be improved. Among these, citric acid is preferable.

  It is preferable that the compounding quantity of the total anionic surfactant containing the said acid type anionic surfactant is 0.1 to 25 weight%. In addition, this compounding quantity is with respect to 100 weight% of total amounts of various raw materials contained in cleaning materials, cosmetics, and the like.

  The oil used in the present invention is added to create the conditioning effect of the cleaning composition, and the type thereof is not particularly limited regardless of whether it is solid, liquid, or semisolid at room temperature, It is an oil-soluble substance containing a lipophilic surfactant with HLB = 8 or less. The blending amount is preferably 0.1 to 5% by weight.

  Examples of the oil include fatty acids such as palmitic acid and stearic acid having 6 or more carbon atoms, higher alcohols such as cetyl alcohol and octanol, silicone oils such as dimethyl silicone, amino-modified silicone and silicone wax, and esters such as cetyl isooctanoate. Examples thereof include hydrocarbon oils such as oil, petroleum jelly and squalane, vegetable oils such as castor oil, olive oil and jojoba oil, and various waxes, and one or a combination of two or more thereof can be used.

  Among the oils, those which are solid at normal temperature are preferable, for example, beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, botalow wax, whale wax, montan wax, nukarou, lanolin, kapok wax, mokuro, lanolin acetate, liquid lanolin, sugar cane Examples include wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, microcrislin oil, paraffin oil, hardened castor oil, petrolatum and the like.

  Further, as lipophilic surfactants, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, fatty acid glyceride, POE hydrogenated lanolin alcohol ether, sucrose fatty acid ester, polyglycerin fatty acid ester, sorbitan Examples include fatty acid esters.

  Among the oils, a sucrose fatty acid ester is particularly preferable in terms of further improving the conditioning effect. The sucrose fatty acid ester is easily formed into fine particles, so that the oil component can be easily solubilized and finely dispersed to obtain a further conditioning effect of the cleaning composition.

  As the sucrose fatty acid ester, those containing 25% by weight or more of an esterified product having an esterification degree of 4 or more and 8 or less are preferable, and can be obtained by esterifying sucrose and a fatty acid, specifically stearic acid. Examples thereof include sucrose, sucrose erucate, sucrose oleate, and sucrose palmitate.

  When adding and diluting water to the mixture of the acid type anionic surfactant and the oil, it is preferable to neutralize the mixture with a basic compound, thereby suppressing the aggregation of fine particles and stabilizing the cleaning composition. The conditioning effect can be maintained over a long period of time. In this neutralization, the mixture may be neutralized before dilution with water, or may be neutralized after dilution, or a basic compound may be dissolved in water and neutralization and dilution may be performed simultaneously.

  The basic compound used for this neutralization is not particularly limited, and sodium hydroxide, ammonia, or the like that is usually used as the basic compound can be used, and the detergent composition has a pH of 5.0 to 7. It is preferable to adjust to the range of 0.

  The detergent composition may be used outside the pH range depending on its application and product properties. For example, the detergent composition can be used as it is without being neutralized.

  Moreover, it is preferable to mix | blend polyvinyl pyridone (PVP) soluble in the said oil component with the cleaning composition of this invention, and the viscosity of a composition is moderated by containing PVP, and a usability | use_condition is improved. At the same time, stability can be improved and deterioration and deterioration due to changes over time can be suppressed. PVP is preferably one having a K value of 15 to 100, and may be used alone or in combination of two or more, and the blending amount is preferably 0.1 to 5% by weight.

  In the cleaning composition according to the present invention, PVP and a basic compound are added to an aqueous solution obtained by diluting a mixture of an acid type anionic surfactant and an oil component with water as necessary, and a predetermined temperature is set at about 80 ° C. It is obtained by stirring for hours and then cooling to room temperature.

  The resulting cleaning composition becomes an aqueous solution in which oil particles having an average particle diameter of 10 to 1000 nm are finely dispersed, and the oil component as a conditioning component is adsorbed to the hair and skin and becomes easy to fix, thereby improving the conditioning effect. The change with time of the composition is suppressed. The average particle diameter of the oil particles is preferably less than 800 nm, more preferably less than 600 nm, and the above effect can be further exerted. Further, the transparency of the aqueous solution can be improved by micronization.

  When the cleaning composition of the present invention is used for cleaning or cosmetics, oils, surfactants, polymer compounds, antioxidants, ultraviolet absorbers, humectants, used as components of ordinary cleaning or cosmetics, Additives such as fragrances, dyes, pigments, pigments, preservatives, vitamins, hormones, deodorants, pH adjusters, fixing agents, and the like can be appropriately mixed and used.

  The hair and skin cleanser and cosmetic according to the present invention are prepared by adding and mixing a basic compound, additive, conditioned water, etc. to the above-mentioned detergent composition, and stirring in a warmed state of about 80 ° C. for a predetermined time. And then cooled to room temperature.

  Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited thereto. In addition, all compounding quantities are weight%.

  The cleaning composition of each Example and Comparative Example shown in Table 1 was blended according to the blending amount described in Table 1, and a shampoo was prepared by the following preparation method.

  The average particle diameter (nm) of the sucrose fatty acid ester particles dispersed in each of the obtained detergent compositions was measured under a particle size distribution measuring apparatus and an optical microscope, and is shown as “Evaluation 1” in Table 1.

  Next, for the shampoos prepared using each of these detergent compositions, the “smoothness” and “easyness of uniting (grouping feeling)” of the hair were evaluated according to the following evaluation criteria. This evaluation is shown in Table 1 as “Evaluation 2” for one week after shampoo preparation and “Evaluation 3” for six months after shampoo preparation.

[Smoothness]
Using each sample, the smoothness of the hair after use (after drying) was sensory-evaluated by a professional panel of 10 women and 10 men, and an average was taken.
◎: Answers that there is a very smooth feeling ○: Answers that there is a smooth feeling △: Answers that the smooth feeling is unsatisfactory ×: Answers that there is no smooth feeling

[A sense of unity]
Using each sample, the sense of unity of hair after use (after drying) was subjected to a sensory evaluation using a professional panel of 10 women and 10 men.
◎: 18 or more people answered that they had a sense of unity ○: 14-17 people answered that they had a sense of unity △: 8-13 people answered that they had a sense of unity ×: 7 or less people felt that they had a unity Answer that there is

[Preparation of shampoo]
1) The anionic surfactant, sucrose fatty acid ester, PVP, acid, and pure water of the cleaning composition are mixed and heated at 80 ° C. for 2 hours. Stir manually with a stir bar once every 10-30 minutes during warming.
2) Allow the resulting mixture to cool to 60 ° C., add the basic compound, and mix uniformly. 3) After that, additives and adjustment water were mixed and cooled to room temperature to obtain a shampoo.

  Each raw material described in Table 1 is as follows. In the table, an anionic surfactant is abbreviated as a surfactant.

[Each raw material]
Anionic surfactant-A: POE (3) sodium lauryl ether acetate 28% aqueous solution (Neohaitenol ECL-30S manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
Anionic surfactant-B: POE (2) sodium lauryl ether sulfate 25% aqueous solution (Hightenol 225L, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
-Acid type anionic surfactant-C: POE (3) lauryl ether acetic acid-Sucrose fatty acid ester-A: Polystearate sucrose (Cosme-like S-10 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
Sucrose fatty acid ester-B: Sucrose pentaerucate (Daiichi Kogyo Seiyaku Co., Ltd. Cosmelike R-20)
-PVP-A: Polyvinylpyrrolidone K value = 30 (Clearance K-30 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
-PVP-B: Polyvinylpyrrolidone K value = 90 (Clearance K-90 manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
Additive-A: Palm oil fatty acid amidopropyl betaine 29% aqueous solution (Amogen CB-H manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
Additive-B: palm oil fatty acid monoethanolamide (Daianol CME, Daiichi Kogyo Seiyaku Co., Ltd.)

  From the results shown in Table 1, the shampoo prepared using the detergent composition of each example in which fine particles of sucrose fatty acid ester (oil) having an average particle diameter in the specified range are finely dispersed is excellent in both smoothness and unity. It turns out that it is. However, in Example 2 in which the blending amount of the wax and PVP is less than that in Example 1 and in Example 4 not including PVP, there is a slight tendency to decrease in stability due to uneven use feeling and aging.

  On the other hand, the shampoo of Comparative Example 1 containing no sucrose fatty acid ester (oil) and Comparative Example 2 using a normal anionic surfactant is significantly more smooth and coherent than the shampoo according to the present invention. Inferior.

The cleaning composition of the present invention can be suitably used for hair and skin cleaning agents and cosmetics such as shampoos, rinses, treatments, facial cleansing foams, kitchen detergents and the like.

Claims (7)

  A cleaning composition comprising an aqueous solution containing an acid type anionic surfactant and an oil.   A cleaning composition comprising a basic compound added to an aqueous solution containing an acid type anionic surfactant and an oil.   The cleaning composition according to claim 1 or 2, wherein the acid type anionic surfactant is obtained by mixing an anionic surfactant and an acid.   The said oil content contains sucrose fatty acid ester, The cleaning composition in any one of Claims 1-3 characterized by the above-mentioned.   Furthermore, polyvinylpyrrolidone is included, The cleaning composition in any one of Claims 1-4 characterized by the above-mentioned.   The cleaning composition according to any one of claims 1 to 5, wherein an average particle size of the oil particles dispersed in the cleaning composition is 10 to 1000 nm. A cleaning composition and a cosmetic comprising the cleaning composition according to any one of claims 1 to 6.