KR20120056947A - Hair cosmetic composition using Phase inversion temperature emulsion method - Google Patents

Abstract

PURPOSE: A hair cosmetic composition by a phase inversion temperature emulsion method is provided to continuously maintain hair styling. CONSTITUTION: A hair cosmetic composition contains 0.01-20 wt% of polyethylene, 0.01-30 wt% of ethylene oxide addition non-ionic surfactant, and 0.01-20 wt% of maltitol as an active ingredient. The composition is a nanoemulsion of oil-in-water type. The surfactant is laureth-4, ceteareth-12, or ceteareth-30.

Description

Hair cosmetic composition using Phase inversion temperature emulsion method

The present invention relates to a hair cosmetic composition using a full-phase temperature emulsification method, and more specifically, a hair-drying oil-in-water nanoemulsion form with improved ease of use, containing polyethylene, ethylene oxide addition nonionic surfactant, and maltitol It relates to a hair cosmetic composition improved.

An emulsion is a liquid-liquid dispersion system in which one or more liquid phases are dispersed, which are not mixed in one liquid phase, and generally have a size distribution of 0.1 mm to several tens of mm. Such macroemulsions are thermodynamically unstable and tend to eventually separate by various pathways such as floculation, sedimentation, creaming, ostwald ripening, and coalescence. . In this case, when the size of the emulsion particles in the dispersed phase is reduced to nano size, the stability of the emulsion in the kinetic aspect can be greatly improved by the Brownian motion between the particles, and a low viscosity emulsion having a high content of the inner phase can be prepared. You can make a variety of cosmetics. In general, liquid-liquid dispersion systems with an average diameter of 20 to 500 nm of dispersed phase particles are called nanoemulsions (Flockhart, IR etc, Nanoemulsions derived from lanolin show promising drug delivery properties, J. Pharm. pharmacol., 50 (Supplement) 1998, 141), which are usually manufactured using high pressure emulsification or phase inversion technology.

Among these, the phase-phase emulsification method of the surfactant consisting of water, oil and non-ionic surfactants of the three-component composition of the surfactant decreases the hydrophilic properties of the hydrophilic group ethylene oxide and water is reduced as the temperature increases It is an emulsification method using the principle. At this time, the composition composed of the three-component system forms an O / W emulsion at a certain temperature or less and a W / O emulsion at a certain temperature or more. This temperature is called the "Phase Inversion Temperature". That is, the phase temperature may be referred to as the temperature at which the hydrophilic-lipophilic equilibrium is achieved in the emulsion system. At this temperature, since the interfacial tension with the oil-surfactant-water is extremely low, the oil and water can be easily mixed with little force and separation can easily occur due to the specific gravity difference. In addition, O / W is finely and evenly distributed by the change in volume of the dispersed phase (Catastrophic Inversion) or the change in the affinity of the surfactant to oil and water phase through the phase conversion from W / O to O / W type. You can make a type emulsion.

However, this method has a problem in that the stability of the low phase temperature is lower than room temperature to about 60 ° C. only with the combination of POE-based or W / O-type surfactants. In the case of cosmetics, the temperature rises under the conditions of storage or movement, or it may be stored and distributed in a high temperature place. Therefore, when the phase temperature is low, the O / W-type nanoemulsion becomes unstable and is easily separated. In order to solve this problem, a stable O / W type emulsion can be produced only when the phase temperature is increased by 20 to 30 ° C. or higher than the temperature of the distribution and storage stages. As such, the method of increasing the phase temperature in the preparation of the emulsion may be used by mixing several other surfactants, but this method is difficult to expect the rise in the phase temperature having a certain regularity, and also changes in the phase temperature There is a hassle to adjust the overall volume of the surfactant system.

Conventionally, nano-emulsions have been tried in hair dressing compositions (USP 5,3206,488 JP 2006-096670) and the like, but compositions thereof have disadvantages such as unsatisfactory hairdressing power and long stickiness. In addition, in the emulsified cosmetics for hairdressing (JP 2004-67622), polyethylene is used, but a high viscosity emulsifier is made. It can be seen that it is heavy in terms of feeling and weak in hairdressing persistence.

Accordingly, the present inventors have studied to prepare a sprayable and highly stable hair cosmetic composition, in the production of nanoemulsion using the phase-temperature emulsification method, using a polyethylene as an emulsifier to improve hairstyling power and ethylene oxide is The present invention was completed by confirming that emulsification was formed using the added nonionic surfactant and maltitol was added to prepare a hair cosmetic composition having a high stability in oil-in-water (O / W) nanoemulsion.

It is an object of the present invention to provide a hair cosmetic composition which is sprayable and has high stability by using a full-phase temperature emulsification method.

In order to achieve the above object, the present invention provides a hair cosmetic composition comprising polyethylene, ethylene oxide addition nonionic surfactant and maltitol as an active ingredient.

The present invention can be sprayed by producing a stable hair cosmetic composition using the phase-temperature emulsification method and can provide strong hairstyling power and persistence of the hair by ethylene oxide, excellent ability to continuously maintain the styling after applying to the hair Got out.

The present invention provides a hair cosmetic composition comprising polyethylene, ethylene oxide addition nonionic surfactant and maltitol as an active ingredient.

Hereinafter, the present invention will be described in more detail.

The hair cosmetic composition of the present invention is a composition of an oil-in-water (O / W type) nanoemulsion prepared by using a phase-temperature emulsification method.

Polyethylene, which is used as an active ingredient in the present invention, may be applied to hair to impart an effect of forming strong hairstyling power, and is mainly used for creamy hair dressing agents using general emulsification. When polyethylene is used in the nanoemulsion, the particle size of the emulsion may be increased, the viscosity of the emulsion may be increased, and the stability may be deteriorated, such as phase separation. Thus, maltitol may be used together to complete a stable hair cosmetic composition.

The polyethylene of the present invention can be obtained according to a method conventional in the art, and more specifically, for example, the crude oil of petroleum is separated to separate the naphtha portion (100-200 ° C. effluent) and decompose it. After fractionation of about 25% ethylene, and polymerization of the fractionated ethylene can be obtained a chain-like high molecular compound of the formula (1).

The polyethylene of the present invention may be contained in 0.01 to 20% by weight relative to the total weight of the composition. If the content is less than 0.01% by weight, the sustainability of the composition may be weakened. If the content is more than 20% by weight, the feeling of use is poor and the viscosity of the formulation is increased to form a nanoemulsion.

 Various kinds of ethylene oxide-added nonionic surfactants may be used to form the O / W type nanoemulsion of the present invention and may be contained in an amount of 0.01 to 30% by weight based on the total weight of the composition. Below 0.01% by weight of nanoemulsion is difficult to form, and above 30% by weight, no spray formulation can be made due to an increase in viscosity.

Examples of the ethylene oxide-added nonionic surfactants usable in the present invention include, but are not limited to, laureth-4, ceteareth-12, cetearese-30, and the like.

Maltitol, which is used as an adjuvant for forming a stable nanoemulsion in the present invention, is a reducing sugar of sugar alcohols obtained by reducing maltose, which improves moisture retention of food and is stable to heat, acid, and alkali, and its structure is represented by the following formula It is represented by 2.

Maltitol of the present invention is preferably 0.01 to 20% by weight based on the total weight of the composition. When the content of maltitol is less than 0.01% by weight, the stability of the composition may be weakened, and when it exceeds 20% by weight, the stickiness rises, which is not preferable because it causes inconvenience in using the product.

Hair cosmetic composition of the present invention may contain 2 to 30% by weight of silicone oil, ester oil, hydrocarbon oil and mixtures thereof commonly used in the preparation of oil-in-water (O / W) emulsion, wherein "Oil content" refers to the total amount of oil phase constituents that do not include emulsion stabilizers.

In addition, in the present invention, a pigment, a fragrance, a preservative, a thickener, and the like may be contained in an amount of 0 to 20% by weight based on the total weight of the composition as an auxiliary component commonly used in preparing an O / W-type nanoemulsion.

The O / W-type nanoemulsion prepared by the present invention has an average diameter of 20 to 500 nm, and is characterized by being prepared at a phase temperature that is increased by about 0.01 to 40 ° C. compared with the conventional method when preparing the phase temperature emulsification method.

The hair cosmetic composition according to the present invention may use water or ethanol as a solvent, and may further include one or more other additives selected from the group consisting of thickeners, conditioning agents, moisturizers, flavors, preservatives and pigments in addition to the above components. The above components can be easily selected and used by those skilled in the art as materials included in a conventional hair cosmetic composition.

Since the hair cosmetic composition of the present invention can be used for hairdressing, it may be formulated into a hair dressing composition. The term "hair dressing agent" used in the present invention refers to a finishing cosmetic for hair used when finishing the hair in an attractive and beautiful style, and is used in the same meaning as "hair styling agent".

The hair dressing composition according to the present invention may be formulated as a mousse, gel, spray, or the like, and in the case of gel, it may be a pump, aerosol, cream or tube with a viscosity using a thickener. Mousses and sprays can be prepared in conventional manner using a container suitable for spraying using LPG gas.

Hereinafter, the content of the present invention will be described in more detail by examples. However, these examples are only presented to understand the contents of the present invention, the scope of the present invention is not limited to these examples.

[Examples 1-3 and Comparative Examples 1-6]

Examples 1 to 3 according to the following production method with the composition shown in Table 1 to prepare an O / W-type nanoemulsion containing the active ingredient of the present invention by the phase-phase emulsification method, General O of Comparative Examples 1 to 4 It was prepared as a / W emulsion, and Comparative Examples 5 to 6 were prepared so as not to contain maltitol, which is an active ingredient of the present invention, but using a phase-phase emulsification method (unit: wt%). Comparative Examples 1-4 are viscous creamy compositions, and Examples 1-3 and Comparative Examples 5-6 are low viscosity sprayable nanoemulsion compositions.

Compounding ingredient Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Example 1 Example 2 Example 3 U
Prize
castle
minute Laures-4 2 2 2 2 3 4 2 3 4 Ceteares-12 2 2 2 2 3 4 2 3 4 Ceteares-30 2 2 2 2 3 4 2 3 4 Polyethylene - - 2 2 3 4 2 3 4 Cetyl ethylhexanoate 5 5 5 5 5 5 5 5 5 Carnauba wax 3 3 3 3 3 3 3 3 3 Number
Prize
castle
minute incense 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Maltitol - 0.5 - 0.5 - - 0.5 2 3 Purified water Balance Balance Balance Balance Balance Balance Balance Balance Balance

<Methods for preparing nanoemulsions of Examples 1-3 and Comparative Examples 5-6>

1) The oily ingredients were mixed and warmed up to 20 ℃ higher than expected phase temperature and completely dissolved.

2) The aqueous phase component was mixed and dissolved, and then heated to the same temperature as the oil phase component.

3) The aqueous phase component of 2) was slowly added to the oil phase component of 1) while stirring at 2000 rpm using a homogenizer to emulsify the W / O emulsion.

4) After cooling, the mixture was gradually cooled to O / W type.

5) After confirming phase, aroma and other additives were added and stirred.

6) After complete stirring, degassing and cooling were completed after cooling to 30 ℃.

<Method for Producing Creamy Composition of Comparative Examples 1 to 4>

1) The oily component was completely dissolved after warming to 75 ° C.

2) The aqueous phase component was completely dissolved after warming to 75 ℃.

3) It was added to 2) and slowly added to the oil phase component of 1) while stirring at 3000rpm using a homogenizer to prepare an O / W emulsion.

4) The fragrance and other additives were then stirred while slowly cooling with stirring.

6) After complete stirring, degassing and cooling were completed after cooling to 30 ℃.

Experimental Example 1 Hairstyling Test

The setting force for the hair dressing composition of each of Examples 1 to 3 and Comparative Examples 1 to 6 prepared above was measured using a rheometer (Rheometer; CR-500DX, SUN SCIENTIFIC CO. LTD., Japan). 0.5 g of each composition was evenly applied to 2 g of hair tresses and dried. The dry hair tress was mounted on the rheometer and then pressed by a depth of 10 mm at a rate of 20 ml / min. The setting force was calculated by measuring the strength of the applied force, and the average value measured by repeating the test three times was given in the following table. 2 is shown. The greater the intensity of force applied, the better the hairstyling power.

Example Comparative example One 2 3 One 2 3 4 5 6 Setting force (kgf) 168 205 247 105 110 140 152 174 218

As can be seen from the results of Table 2, the result of observing the change in hairstyling power according to the content of polyethylene, the hairdressing power was increased as the content of polyethylene increased.

In addition, it was confirmed that the hairdressing power tends to be improved compared to the creamy composition when the nanoemulsion composition is prepared. And when the comparative examples 5-6 and Examples 2-3 which are nanoemulsion composition were compared, it was confirmed that the hairstyling power of the composition containing maltitol improves.

 Test Example 2 Investigation of Stability of Nanoemulsion

Creaming or oil separation while storing the composition prepared in Examples 1 to 3 and Comparative Examples 1 to 6 as a test material for 5 days, 10 days, 15 days and a month in a room temperature, 45 ° C. and a cycling chamber. Emulsion stability was observed according to the occurrence or the like, and the results are shown in Table 3 below.

Investigate composition stability over temperature and time Room temperature 45 ° C cycle 5 days 10 days 15th one month 5 days 10 days 15th one month 5 days 10 days 15th one month Comparative Example 1 Good Good Good Good Good Good Good Good Good Good Good Good Comparative Example 2 Good Good Good Good Good Good Good Good Good Good Good Good Comparative Example 3 Good Good Good Good Good Good Good Good Good Good Good Good Comparative Example 4 Good Good Good Good Good Good Good Good Good Good Good Good Comparative Example 5 Good Good Good Oil separation Good Creaming Oil separation Oil separation Good Creaming Oil separation Oil separation Comparative Example 6 Good Good Good Oil separation Good Good Creaming Oil separation Good Creaming Oil separation Oil separation Example 1 Good Good Good Creaming Good Good Good Creaming Good Good Good Creaming Example 2 Good Good Good Good Good Good Good Good Good Good Good Good Example 3 Good Good Good Good Good Good Good Good Good Good Good Good

In the results of Table 3, in the general high viscosity creamy emulsion (Comparative Examples 1 to 4) can be used to form a stable formulation using polyethylene, but when forming a low viscosity nano emulsion deteriorates the stability of the formulation separation, etc. Could see. It was confirmed that the nanoemulsion prepared in Examples 1 to 3 can ensure higher stability than Comparative Examples 5 to 6 at room temperature, high temperature, and circulating state. Therefore, it can be seen that the stability of the nanoemulsion is deteriorated when polyethylene is used alone when O / W type nanoemulsion is prepared, and the stability of the nanoemulsion is improved when maltitol is used together.

Claims (7)

Hair cosmetic composition comprising polyethylene, ethylene oxide addition nonionic surfactant and maltitol as an active ingredient. The hair cosmetic composition according to claim 1, wherein the composition is an oil-in-water nanoemulsion prepared by using a phase-temperature emulsification method. The hair cosmetic composition according to claim 1, wherein the polyethylene is contained in an amount of 0.01 to 20% by weight based on the total weight of the composition. The hair cosmetic composition of claim 1, wherein the ethylene oxide addition nonionic surfactant is contained in an amount of 0.01 to 30% by weight based on the total weight of the composition. The hair cosmetic composition of claim 1, wherein the ethylene oxide-added nonionic surfactant is at least one selected from the group consisting of laureth-4, ceteareth-12 and cetearese-30. The hair cosmetic composition of claim 1, wherein the maltitol is contained in an amount of 0.01 to 20% by weight based on the total weight of the composition. The hair cosmetic composition according to any one of claims 1 to 6, wherein the composition is for hairdressing.