JP4827463B2 - Composition for practicing hair dye treatment - Google Patents

Description

  The present invention relates to a composition used in place of a hair dye during practice of applying the hair dye.

  In recent years, with the spread of hair color, improvement of hair color technology of beauty technicians is regarded as important.

  In addition, highlighting and weaving methods that partially dye the hair using aluminum foil etc. are adopted so that the entire hair can be seen more beautifully, but these methods require skill Therefore, it is required for beauty technicians to implement these skills sufficiently by practicing (training).

  However, since the usual hair dyes used in the above hair colors and the like contain oxidizers and dyes, for example, if the application practice is repeated using a wick, the wick can be used even with a small number of exercises. Since the hair is severely damaged, there is a problem that the service life of the wick becomes very short. In addition, there is a problem in that it is not economical to use a hair dye containing an oxidizing agent or a dye for practice of applying the hair dye.

  Under such circumstances, compositions (practice compositions) that do not contain oxidizing agents or dyes are being sold for practicing hair dye application.

  However, the conventional practice composition as described above has a problem in that it is difficult to determine the application location when applied to hair. After applying the practice composition to the hair, if the application location is difficult to discriminate, it is difficult to grasp the skill level of the technique, and the practice efficiency of applying the hair dye cannot be increased.

  In addition, while there are types of conventional practice compositions that are used as they are for application practice, they are sold in a somewhat concentrated form with an emphasis on economic efficiency, and can be used on the user side. Some types are diluted with water. However, the conventional practice composition of the type used by dilution on the user side has a problem that the operability when mixed with water is poor and it is difficult to easily obtain a uniform dilution.

  The present invention has been made in view of the above circumstances, and its purpose is to easily identify the location of application to the hair, and for hair dyeing practice with excellent operability when mixed with water. It is to provide a composition.

The composition for practicing hair dye treatment of the present invention that has achieved the above object (hereinafter sometimes simply referred to as “practice composition”) includes at least a white pigment, a cationic surfactant, and a nonionic property. It contains a surfactant, a higher alcohol , a vinylpyrrolidone-styrene copolymer, and water.

  As the white pigment, titanium oxide is preferable. The practice composition preferably further contains a hydrophilic polymer.

  According to the present invention, it is possible to easily identify the application site on the hair, and when water is further added and mixed, the operability is good and a uniform dilution can be easily obtained. A composition for practicing treatment can be provided.

  The composition for practicing hair dye treatment according to the present invention is mainly composed of a cream base (cream base) composed of at least an oil component, water and a surfactant. Among these, a higher alcohol is used as the oil component, and a cationic surfactant and a nonionic surfactant are used in combination as the surfactant.

The “higher alcohol” in the present invention means an alcohol having 12 to 22 carbon atoms. Specific examples include lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, cetostearyl alcohol (a mixture of cetanol and stearyl alcohol), oleyl alcohol, behenyl alcohol, octyldodecanol, and the like. Incidentally, lanolin alcohol obtained by hydrolysis of lanolin is included in the higher alcohol as defined above, can be used as a higher alcohol according to the present invention. The lower limit of the carbon number of the higher alcohol according to the present invention is preferably 14, and the upper limit of the carbon number is preferably 18.

  In the practice composition of the present invention, a cationic surfactant and a nonionic surfactant are used in combination as the surfactant. If only a cream base is to be formed, for example, it is possible to use only a nonionic surfactant as a surfactant, but a cream base constituted by using only a nonionic surfactant as a surfactant. Then, it is difficult to further add water and mix to obtain a uniform creamy dilution. In contrast, by using a cationic surfactant together with a nonionic surfactant as a surfactant in a creamy base, it can be easily mixed simply by adding water to the practice composition and mixing it. A uniform dilution can be obtained in a short time. For this reason, the practice composition of the present invention can be easily diluted with water on the user side.

  Moreover, in the cream base comprised using only a cationic surfactant as surfactant, when diluted with water, a viscosity will fall rapidly and the operativity at the time of apply | coating to hair will worsen. On the other hand, in the practice composition of the present invention in which a nonionic surfactant and a cationic surfactant are used in combination, even if diluted with water, an abrupt decrease in viscosity is suppressed and an appropriate viscosity is maintained. Good applicability to hair can be secured. The reason is not clear, but in the cream base according to the practice composition of the present invention, by using a nonionic surfactant and a cationic surfactant in combination, for example, a gel, not a liquid crystal emulsion, etc. It is presumed that an abrupt viscosity decrease when water is further added is suppressed. In addition, the combined use of a nonionic surfactant and a cationic surfactant also has the effect of facilitating washing away when the hair coated with the composition is washed with water, compared to the case of using only the nonionic surfactant. is there.

  The cationic surfactant that can be used in the present invention is not particularly limited as long as it is a conventionally known surfactant used in ordinary cosmetics. For example, alkyltrimethylammonium chloride (lauryltrimethylammonium chloride, cetyltrimethylammonium chloride, Such as stearyltrimethylammonium chloride), alkyltrimethylammonium bromide (such as cetyltrimethylammonium bromide, stearyltrimethylammonium bromide), and the like; dialkyl halides such as distearyldimethylammonium chloride and dicocoyldimethylammonium chloride Trimethylammonium; stearyltrimethylammonium saccharin; and the like. Among them, the above exemplified alkyltrimethylammonium halide is preferable.

  Further, the nonionic surfactant that can be used in the present invention is not particularly limited as long as it is a conventionally known surfactant used in ordinary cosmetics. For example, polyoxyethylene alkyl ether [polyoxyethylene stearyl ether, polyoxyethylene Ethylene cetostearyl ether, polyoxyethylene cetyl ether, polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, etc.], polyoxyethylene alkylphenyl ether, polyoxyethylene polyoxypropylene alkyl ether (polyoxyethylene polyoxypropylene cetyl ether, Polyoxyethylene polyoxypropylene behenyl ether, polyoxyethylene polyoxypropylene 2-decyltetradecyl ether, polyoxyethylene polyoxypropylene Chill ether, polyoxyethylene polyoxypropylene hydrogenated lanolin, polyoxyethylene polyoxypropylene glycerin ether, etc.), polyoxyethylene polyoxypropylene glycol, glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester (such as sorbitan monostearate) Polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan fatty acid ester, polyoxyalkylene benzyl ether, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, sucrose fatty acid ester, alkyl polyglucoside, N-alkyldimethylamine oxide, Polyoxyethylene propylene glycol fatty acid ester, monooleyl glyceryl ether, etc.Among these, the polyoxyethylene alkyl ethers exemplified above are preferable. The polyoxyethylene alkyl ether preferably has a structure in which the average number of moles of ethylene oxide added per mole of alcohol is from 2 moles to 50 moles (hereinafter referred to as having a structure having moles of ethylene added of n moles). Is expressed as “nE.O.” Therefore, for example, when the number of moles of ethylene added is 2 mol, it becomes “2E.O.”).

  The higher alcohol, the cationic surfactant, and the nonionic surfactant may be used by appropriately combining the materials exemplified above. For example, a higher alcohol having 12 to 22 carbon atoms and an alkyl group carbon It is preferable to use a combination of a halogenated alkyltrimethylammonium having 12 to 22 carbon atoms and a polyoxyethylene alkyl ether having an alkyl group having 12 to 22 carbon atoms.

  Among the combinations of the above higher alcohol, halogenated alkyltrimethylammonium and polyoxyethylene alkyl ether, the number of carbons of the higher alcohol, the number of carbons of the alkyl group of the alkyltrimethylammonium halide, and the alkyl of polyoxyethylene alkyl ether A combination in which the number of carbon atoms in the group is the same is more preferable. Specific combinations include, for example, a combination of cetanol, cetyltrimethylammonium bromide, and polyoxyethylene cetyl ether (carbon number: 16); a combination of stearyl alcohol, stearyltrimethylammonium chloride, and polyoxyethylene stearyl ether. (Carbon number: 18);

  As described above, if the number of carbons of the higher alcohol, the number of carbons of the alkyl group of the alkyltrimethylammonium halide, and the number of carbons of the alkyl group of the polyoxyethylene alkyl ether are the same, The emulsion of the cream base according to the composition is further stabilized, and the operability when diluted with water is further improved.

  The white pigment according to the practice composition of the present invention plays a role of facilitating the discrimination of the application site when the composition is applied to the hair. Examples of the white pigment include white metal oxides such as titanium oxide, zinc oxide, zirconium oxide, and aluminum oxide. Titanium oxide is preferable because the application site can be more easily distinguished. There are two types of titanium oxide, anatase type and rutile type, but the anatase type is preferred. The reason is unknown, but the practice composition using anatase-type titanium oxide is easier to mix when further diluted by adding water. In addition, the practice composition using anatase-type titanium oxide also has an advantage that the application location can be more easily distinguished when applied to hair.

  The average particle diameter of the white pigment is, for example, 0.1 μm or more, more preferably 0.3 μm or more, and 0.7 μm or less, more preferably 0.5 μm or less. It is because it is easy to mix | blend with the cream base which concerns on the composition for practice if it is a white pigment which has said average particle diameter. The average particle size of the white pigment was calculated from the particle size distribution of the white pigment obtained by centrifugal sedimentation for 6 ml of white pigment added to 300 ml of 0.05% sodium hexametaphosphate solution. The weight median diameter.

  The practice composition of the present invention can be used as it is for practice in applying a hair dye, but can also be used after further dilution with water.

  In addition, when the composition for practice is applied to hair for practice of applying a hair dye, the viscosity thereof is 10,000 mPa · s or more, more preferably 15,000 mPa · s or more at 25 ° C. In addition, it is desirable that it is 40,000 mPa · s or less, more preferably 30,000 mPa · s or less. The viscosity of the practice composition here is a value after rotating for 60 seconds at a rotation speed of 6 rpm at a temperature of 25 ° C. using a No. 4 rotor using a B-type rotational viscometer.

  Therefore, for example, when it is assumed that the user will further dilute the practice composition by adding water to the practice composition, the viscosity of the practice composition before dilution will be the above preferred value. It is preferable to adjust so that. The viscosity of the practice composition can be controlled by adjusting the content ratio of each component.

  When the practice composition is used after being diluted with water, the dilution factor is, for example, 1.5 times or more, more preferably 2 times or more, and 4 times or less, more preferably 3 times or less. It is desirable to do. If the dilution ratio is too large, it may be difficult to mix the practice composition and water during dilution.

  The practice composition used by diluting at the dilution ratio as described above preferably has the content of each component as follows, for example. In addition, even if it is the composition for practice which satisfies content of each component demonstrated below, for example, when the viscosity exists in said suitable value, it should use as it is, without further diluting with water. Can do.

  The content of the white pigment is, for example, 0.1% by mass or more, more preferably 0.5% by mass or more, and preferably 2% by mass or less, more preferably 1% by mass or less.

  The content of the cationic surfactant is, for example, 1% by mass or more, more preferably 2% by mass or more, and preferably 6% by mass or less, more preferably 4% by mass or less.

  The content of the nonionic surfactant is, for example, 0.1% by mass or more, more preferably 0.5% by mass or more, and 3% by mass or less, more preferably 1.5% by mass or less. preferable.

  The content of the higher alcohol is, for example, 5% by mass or more, more preferably 8% by mass or more, and preferably 20% by mass or less, more preferably 15% by mass or less.

In the practice composition of the present invention, the essential components other than the white pigment, the cationic surfactant, the nonionic surfactant , the higher alcohol, and the vinylpyrrolidone-styrene copolymer include water as described above. . In the practice composition of the present invention, the component contained in addition to the white pigment, the cationic surfactant, the nonionic surfactant , the higher alcohol, and the vinylpyrrolidone-styrene copolymer may be water alone or necessary. Depending on the, other components may be further contained. Therefore, the water content in the practice composition of the present invention is preferably, for example, 70 to 90% by mass.

In the practice composition of the present invention , a vinylpyrrolidone-styrene copolymer which is a kind of hydrophilic polymer is used . The above-mentioned white pigment is very effective in facilitating the discrimination of the place where the practice composition is applied on the hair, but if the content in the practice composition is too high, it is diluted with water, for example. In some cases, a part of the white pigment is easily separated from the cream base, the operability thereof is slightly lowered, and the mixing may be prolonged.

On the other hand, the vinyl pyrrolidone-styrene copolymer has good water dispersibility, and has the above-described function in the white pigment (function for easily discriminating the location where the practice composition is applied to the hair). It also has a supplementary function. Therefore, by using the hydrophilic polymer in combination with the white pigment, the amount of the white pigment used in the practice composition is reduced, and the operability at the time of dilution with water is increased, and the applied portion is easily discriminated. The function can be maintained. Moreover, even when the content of the white pigment is increased in order to make it easier to discriminate the place where the practice composition is applied to the hair, the vinyl pyrrolidone-styrene copolymer can be used in combination to improve the practice composition. Uniformity can be ensured, and operability during water dilution can be improved.

The vinyl pyrrolidone-styrene copolymer is commercially available in the form of an emulsion, and can be used as it is in preparing the practice composition .

The content of the vinylpyrrolidone-styrene copolymer in the practice composition is preferably 0.5 to 2% by mass, for example.

  In the practice composition of the present invention, in addition to the above-described components, each component used in ordinary hair cosmetics can be used. Examples of such components include hydrocarbons, esters, silicone oils, vegetable oils, fatty acids, humectants, antioxidants, preservatives, fragrances, chelating agents, and the like.

  Examples of the hydrocarbon include liquid paraffin, light liquid isoparaffin, squalane, petrolatum, and microcrystalline wax. Examples of the ester include isopropyl myristate, cetyl myristate, isostearyl laurate, cetyl isostearate, ethylene glycol dioctanoate, cetyl lactate and the like. Examples of vegetable oils include avocado oil, almond nut oil, olive oil, soybean oil, rapeseed oil, hydrogenated oil, jojoba oil, and the like. Examples of the fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, and isostearic acid.

  Examples of the humectant include glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, dipropylene glycol, sodium pyrrolidonecarboxylate, hyaluronic acid, sorbitol, and highly polymerized polyethylene glycol. Examples of the antioxidant include vitamin E (such as d-δ-tocophenol), acetic acid d-δ-tocophenol, and dibutylhydroxytoluene. Examples of the preservative include sodium benzoate, benzalkonium chloride, sorbic acid, potassium sorbate, methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, butyl paraoxybenzoate, and phenoxyethanol. Examples of the chelating agent include edetate, Na polyphosphate, Na citrate, gluconic acid, hydroxyethane diphosphonic acid and the like.

  The practice composition of the present invention is mixed and diluted by adding water as necessary, and used for practice of applying a hair dye to hair. The hair to which the practice composition is applied (Wick's hair) can be washed away simply by washing with water. For this reason, in the composition for practice of this invention, the efficiency of application practice of a hair dye can be improved.

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples are not intended to limit the present invention, and all modifications made without departing from the spirit of the preceding and following descriptions are included in the technical scope of the present invention. In the following examples, “%” means “mass%”. In addition, as the blending amount of the practice composition, the blending amount of each component is shown in% so that it becomes 100% as a whole, and the numerical value indicating the blending amount is omitted in each table below. Is displayed.

Reference Example 1, Examples 2 to 3 and Comparative Examples 1 to 4
Each raw material was mix | blended with the composition shown in Table 1, and the composition for hair dye treatment practice was prepared. The titanium oxide used in Reference Example 1, Examples 2 to 3 and Comparative Examples 1 and 2 is “KRONOS titanium oxide KA-10M (trade name)” (anatase type titanium oxide) manufactured by Titanium Industry Co., Ltd. The “hydrophilic polymer emulsion” used in Examples 2 and 3 and Comparative Examples 1 and 2 is “ANTARA 430 (trade name)” (a vinyl pyrrolidone-styrene copolymer) manufactured by ISP. In the emulsion, the copolymer content is 40% by mass).

  In Table 1, “total 100” in the column of purified water is 100% by adding the amount of purified water to the total amount of components other than purified water constituting the practice composition. Means that

The following evaluation was performed about the composition for practice of the reference example 1, Examples 2-3, and Comparative Examples 1-4. The results are shown in Table 2.

<Ease of mixing with water>
About the ease of mixing at the time of diluting each said composition for practice with water 2 times, each 10 expert panelists evaluated by the following reference | standard, and performed scoring.
Good: Can be mixed evenly within 2 minutes (2 points);
Normal: Can be mixed evenly within 1 minute 30 seconds (1 point);
Bad: It takes more than 1 minute 30 seconds to mix uniformly (0 points).

  And for every practice composition, the score of 10 said panelists was totaled, the thing of 16-20 points was made into (circle), the thing of 11-15 points was made into (triangle | delta), and the thing of 10 points or less was made into x. ○ Things pass.

<Viscosity of practice composition>
About each practice composition before and behind the said dilution, the viscosity after rotating it for 60 second at the temperature of 25 degreeC and the temperature of 25 degreeC was measured using the No. 4 rotor using B type rotational viscometer.

<Evaluation of applicability of practice composition to hair>
Each of the practice compositions after dilution was applied to the hair, and the elongation at the time of application, the ease of discriminating the application site, and the L value of the application site were measured.

  First, evaluation of the ease of distinguishing the elongation at the time of application and the application location in the practice composition after dilution was performed as follows. “Wick FC121 (trade name)” manufactured by Fontaine Co., Ltd. was used as a wick (doll with human hair implanted in the head). Regarding the elongation at the time of application, when the 10 panelists applied 4 g of the diluted practice composition to each of the wick hairs using a hair dye brush, Judgment was made based on whether or not an appropriate amount could be applied, and a score of 1 was given when both of these were good, and a score of 0 was given when either or both were bad (that is, both were good) Means an applicability close to that of an actual hair dye). Then, for each practice composition, the scores of the 10 panelists were totaled, and 7 to 10 points were rated as ◯, and 0 to 6 points were rated as ×. ○ Things pass.

Moreover, in the wick which apply | coated the composition for practice, the ease of discrimination | determination of an application part was evaluated by the said 10 panelists, and it scored according to the following references | standards.
2 points: The application part and the non-application part can be clearly distinguished;
1 point: The application part and the non-application part can be distinguished;
0 point: It is difficult to distinguish between the coated part and the non-coated part.

  And for every practice composition, the score of 10 said panelists was totaled, the thing of 16-20 points was made into (circle), the thing of 11-15 points was made into (triangle | delta), and the thing of 10 points or less was made into x. ○ Things pass.

  Moreover, L value after apply | coating to the hair the composition for a practice after the said dilution was measured as follows. Prepare 7 sets of hair bundles with a length of 10 cm and a mass of 1 g, and apply the diluted practice composition to each of the hair bundles with 2 g each using a brush, and then wrap these hair bundles. And the L value was measured using a color difference meter (a color difference meter “CR-200” manufactured by Minolta Co., Ltd.). Here, the L value represents lightness, white has the highest lightness and the L value has a maximum value of 100, and conversely black has the lowest lightness and the L value has a minimum value of 0.

As shown in Table 2, the practice of Examples 2 to 3 containing titanium oxide, which is a white pigment, and a cationic surfactant, a nonionic surfactant, a higher alcohol , a vinylpyrrolidone-styrene copolymer, and water. In the composition for use, it can be easily diluted with water, the location where the hair is applied can be easily discriminated, and the applicability to the hair (elongation during application) is also excellent. In addition, since these practice compositions do not contain hydrogen peroxide, an alkaline agent, a dye, or the like unlike ordinary hair dyes, there is no damage to the hair after application.

  On the other hand, the composition of Comparative Example 1 in which cetyltrimethylammonium bromide which is a cationic surfactant is not blended is inferior in mixing with water. In addition, the composition of Comparative Example 2 which does not contain the nonionic surfactant polyoxyethylene cetyl ether (2E.O.) has a sharp viscosity drop after dilution with water, and is applied to the hair. The extensibility of is reduced. Furthermore, in the composition of Comparative Example 3 in which titanium oxide, which is a white pigment, is not blended, and in the composition of Comparative Example 4, in which a yellow pigment (Yellow No. 203) is blended in place of the white pigment, The L value is low and it is difficult to determine the application location.

Claims (4)

A hair dye treatment practice composition comprising at least a white pigment, a cationic surfactant, a nonionic surfactant, a higher alcohol , a vinylpyrrolidone-styrene copolymer, and water.   The composition for practicing hair dye treatment according to claim 1, wherein the white pigment is titanium oxide. The cationic surfactant is halogenated alkyltrimethylammonium, the nonionic surfactant is polyoxyethylene alkyl ether, the carbon number of the higher alcohol is 12 to 22, and the carbon number of the alkyl group of the halogenated alkyltrimethylammonium. The composition for practicing hair dye treatment according to claim 1, wherein the number of carbon atoms of the alkyl group of the polyoxyethylene alkyl ether is 12-22. The composition for practicing hair dye treatment according to claim 3, wherein the carbon number of the higher alcohol, the carbon number of the alkyl group of the alkyltrimethylammonium halide, and the carbon number of the alkyl group of the polyoxyethylene alkyl ether are the same. object.