KR102584625B1 - Powder for Hair Dye Including Mugwort - Google Patents

Abstract

The present invention is a powder hair dye, which includes microbeads for powder hair dye containing microbeads containing a desiccant and a metal peroxide encapsulated in the microbeads; expression dye; A powder hair dye comprising a thickening agent is provided. In addition, a powder hair dye containing mugwort powder as a thickener and having the function of suppressing scalp inflammation and relieving scalp irritation is provided.

Description

Powder for Hair Dye Including Mugwort}

The present invention relates to a powder hair dye containing mugwort.

Unlike typical liquid hair dyes, powder hair dyes are packaged in powder form for convenient transportation and storage. Since the user dissolves them in water right before use, they contain peroxide, which can generate hydrogen peroxide when dissolved in water, as an essential ingredient. do.

The hydrogen peroxide generated at this time penetrates into the hair, and the oxygen generated from hydrogen peroxide oxidizes the melanin pigment in the hair, bleaching the hair, and the pigment expressed by condensation polymerization of the dye intermediate and coupler component penetrated by hydrogen peroxide or oxygen in the air. This is what causes color development, and this is commonly referred to as dyeing.

However, conventional powder hair dyes had the problem that the color of the powder itself deteriorated over time and that the dyeing power was lower than that of the second liquid hair dye.

Additionally, during the dyeing process, problems such as allergies caused by oxidizing dyes such as p-phenylenediamine (PPD), scalp irritation or hair damage caused by dyes and hydrogen peroxide may occur.

Republic of Korea Patent Publication No. 1020160064132 (2016.06.07)

The purpose of the present invention is to provide a powder hair dye that can be used on sensitive scalps as it protects the scalp from inflammation of the scalp that may occur due to hair dye during dyeing and is effective in relieving scalp irritation.

In addition, the purpose is to provide a powder hair dye that effectively controls the reactivity of peroxide, which is essential in powder hair dye, effectively blocks moisture, prevents discoloration of the powder even after long-term storage, and has high dyeing power.

The powder hair dye according to the present invention is a powder hair dye that is mixed with water when used.

peracid metal salt;

Expression dye containing an intermediate and a coupler; and

A thickener comprising a first thickener derived from natural ingredients and a second thickener different from the first thickener,

The first thickener includes mugwort powder, and the mugwort powder is preferably included in an amount of 30 to 330 parts by weight based on 100 parts by weight of the metal peracid salt.

At this time, the powdered hair dye includes a desiccant that blocks or dries moisture while surrounding the metal peracid salt, and the metal peracid salt and the desiccant are composed of a core and a shell.

In addition, the second thickener is at least one selected from the group consisting of a cellulose-based thickener, a guar-based thickener, and a dextrin-based thickener, and is contained in an amount of 5 to 200 parts by weight based on 100 parts by weight of the first thickener. It is desirable.

It is preferable that the first thickener further includes kelp powder, and the weight ratio of the mugwort powder and the kelp powder contained in the first thickener (wormwood powder: kelp powder) is 4:1 to 10:1. desirable.

The core is preferably sodium percarbonate, and the desiccant is included in the outermost shell of the shells, and is preferably sodium sulfate, and the desiccant is contained in the range of 0.5 to 3 parts by weight based on 100 parts by weight of the metal peroxide salt. desirable.

The expressed dye is expressed as a structure according to the following formula (1).

[Formula 1]

[PPD]a-[PPDS]b-[TDS]c-[PAPS]d-[PAP]e-[RS]f-[MAPS]g-[MAP]h-[24DAPE]i

(At this time, a, b, c, d, e, f, g, h, i are the molar ratio of each compound and are a value greater than 0, a+b+c+d+e+f+g+h+i= 1, a+b+c+d and e+f+g+h+i are each greater than 0, and the value of (a+b+c+d)/(e+f+g+h+i) is It is within the range of 0.1 to 20.)

At this time, the expression dye is preferably included in an amount of 70 to 150 parts by weight based on 100 parts by weight of the metal peracid salt, and the powder hair dye further includes a dispersant and a desiccant of the same ingredients as the shell.

Meanwhile, the powder hair dye is dissolved in water at a weight ratio of 1:5 to 1:20 (powder hair dye:water ratio), and then the viscosity measured with a Brookfield viscometer is 10,000 cPs to 70,000 cPs.

The powdered hair dye containing kelp according to the present invention can be used on sensitive scalp by using natural active ingredients that are effective in suppressing inflammation of the scalp and relieving scalp irritation that may occur during dyeing as a thickener, and contains active ingredients to relieve irritation of the scalp. Even if it is included, excellent dyeing power can be achieved without reducing the hair dye's original dyeing power and formulation stability.

In addition, the metal peroxide salt is sealed before use and moisture from the outside can be blocked, so the color of the powder does not discolor even when stored for a long period of time, and when dissolved in water when used, hydrogen peroxide is uniformly eluted, providing uniform pigment expression. It has the effect of being useful as an essential ingredient for powder hair dye.

Figure 1 is a schematic diagram showing the cross-sectional structure of a microbead according to an embodiment of the present invention.
Figure 2 summarizes photos showing the hair dye colors of examples of the present invention.

Before describing the present invention in detail below, it should be understood that the terms used in this specification are only for describing specific embodiments and are not limited only by the scope of the appended claims. All technical and scientific terms used in this specification have the same meaning as generally understood by those skilled in the art unless otherwise specified.

In addition, in interpreting the terms and words used in the specification and claims hereinafter, conventional interpretation must be used based on the principle that the inventor can appropriately define the concept of the term in order to explain his or her invention in the best way. It should not be interpreted limited to the dictionary meaning, but should be interpreted as meaning and concept consistent with the technical idea of the present invention as described in this specification.

Throughout this specification and claims, unless otherwise specified, the terms "comprise", "comprises", "comprising" mean to include the mentioned article, step or group of articles and steps, and any other article. , it is not used in the sense of excluding a step, a group of objects, or a group of steps.

Meanwhile, various embodiments of the present invention may be combined with any other embodiments unless clearly indicated to the contrary. Any feature indicated as being particularly preferred or advantageous may be combined with any other feature or feature indicated as being preferred or advantageous. Hereinafter, embodiments of the present invention and effects thereof will be described with reference to the attached drawings.

The powder hair dye according to an embodiment of the present invention includes a metal peroxide salt, a thickener, an expression dye, and a dispersant.

The metal peroxide salt may be a chemically hydrolyzable metal peroxide salt or an enzymatically decomposable metal peroxide salt, and is preferably a chemically hydrolyzable metal peroxide salt. At this time, at least two types of metal peroxide salts may be used in combination.

A specific example of a metal peroxide salt may be sodium percarbonate, as it not only has very high reactivity and excellent water solubility, such as sodium percarbonate and sodium perborate, but also easily decomposes in water to produce hydrogen peroxide.

At this time, it is preferable to further include a desiccant to prevent moisture from penetrating into the metal peroxide salt.

The desiccant can be a known ingredient as a moisture blocker or/and drying agent in the field of hair dyes, including powdered hair dyes. However, it does not interfere with the chemical hydrolysis of the metal peroxide salt and prevents moisture from penetrating into the metal peroxide salt until it comes into contact with water. Ingredients that do not interfere with the chemical hydrolysis of metal peroxide salts when in contact with water are preferred. For example, sodium sulfate can be used.

At this time, the metal peroxide salt and the desiccant can be mixed and used, but for efficient dehumidification, it is preferable to encapsulate the metal peroxide salt inside the film formed by the desiccant.

That is, the desiccant is preferably included in the core shell or the outermost shell made of metal peroxide salt. As a result, microbeads include a desiccant in the outer shell, allowing them to have excellent mechanical properties, block moisture when not in use, and have excellent water solubility when in use.

In one embodiment, the desiccant is included in an amount of 0.5 to 3 parts by weight, more preferably 1.5 to 2.5 parts by weight, based on 100 parts by weight of the metal peracid salt, since it can provide both a dehumidifying effect and the chemical hydrolysis ability of the metal peracid salt. do.

In other words, the dissolution behavior of metal peroxide and desiccant is stabilized within the above range, but when the desiccant concentration is relatively low below 100:0.5, the moisture blocking effect decreases, and when it exceeds the above range, the dissolution behavior of hydrogen peroxide is unstable and inconsistent. It becomes.

Figure 1 is a schematic diagram showing the cross-sectional structure of a microbead according to an embodiment of the present invention.

According to this, microbeads have a core-shell structure, the core contains a metal peroxide salt, and the shell contains a desiccant.

Additionally, the average diameter of the microbeads is preferably 0.2 mm to 1.0 mm. If it is less than the above range, uniform coating is difficult, and if it exceeds the above range, there is a problem of the thickener clumping.

The method for producing microbeads for hair dye is not limited and can be produced as follows.

First, to prepare microbeads for hair dye, a metal peroxide salt is prepared by fluidized bed growth granulation from an aqueous hydrogen peroxide solution and an aqueous sodium carbonate solution, and the aqueous solution of the desiccant coating material is sprayed on the fluidized bed at a fluidized bed temperature of 55 to 60°C and water is evaporated at the same time. and then dried at a temperature of 90°C or lower for 30 minutes to form a coating layer.

The thickener is used by mixing a first thickener derived from natural ingredients and a second thickener that is different from the first thickener.

The first thickener is a natural ingredient included in powdered hair dye that not only has a thickening effect but also relieves scalp irritation and contains mugwort powder, preferably mugwort powder and kelp powder.

At this time, the first thickener is preferably contained in an amount of 30 to 330 parts by weight based on 100 parts by weight of the metal peroxide salt of the core of the microbead. At this time, if it is less than the above range, the viscosity decreases, and the effective scalp irritation relief and inflammation inhibition effect by natural ingredients cannot be obtained, and if it exceeds the above range, mixing becomes difficult.

When using a mixture of mugwort powder and kelp powder as the first thickener, the weight ratio of mugwort powder and kelp powder (mugwort powder:kelp powder) is preferably 4:1 to 10:1.

Mugwort powder or kelp powder can be used by grinding mugwort or kelp with a grinder such as a grinder mill and filtering it through a fine sieve.

At this time, when mugwort is divided into leaves and leaves, it is preferable that the components of mugwort powder include leaves at least 90% by weight of the total powder.

Mugwort belongs to the perennial herb of the dicotyledonous plant Campanula order Asteraceae. There are 38 species distributed in Korea, and it is known to be effective in antibacterial, anti-inflammatory, soothing, nutritional supply, and irritation relief when included in foods and cosmetics.

In particular, mugwort contains 1,8-cineol, which has excellent antiseptic and antibacterial properties, as well as polyphenols and flavonoids, which have excellent antioxidant and anti-inflammatory effects, preventing skin irritation and irritating odor due to the use of hair dye. It is effective in alleviating.

Mugwort typically includes mugwort, mugwort, mugwort, yellow sea mugwort, mugwort, mugwort, etc., and it is preferable to use mugwort powder as an active ingredient included in the powdered hair dye of the present invention.

At this time, Injin mugwort is a type of mugwort. In particular, the one with the strongest vitality is called Injin mugwort, and it is one of the medicinal plants used to treat various inflammatory diseases.

Mugwort contains a variety of beneficial ingredients such as vitamins A, B, and C, and minerals such as iron, calcium, potassium, and phosphorus, and has anti-skin drying and anti-allergy properties. In particular, it has excellent efficacy in removing mold and toxins, increasing the long-term stability of powdered hair dye, and when applied to the scalp, it disinfects dandruff, bacteria, and waste products, keeping the scalp clean and helping prevent skin diseases.

In addition to the above ingredients, mugwort contains fiber, protein, fat, sugar, and niacin, and has the function of providing nutrition to the scalp and hair, providing health to the hair condition after dyeing.

In addition, the amount of mugwort powder included in the powder hair dye of the present invention is preferably 3 to 55% by weight, preferably 5 to 50% by weight, and more preferably 15 to 45% by weight.

At this time, if it is less than the above range, the effect of supplying hair nutrition and minimizing skin irritation by the active ingredient of mugwort is insignificant, and if it exceeds the above range, mixing and color development of powdered hair dye becomes difficult.

Kelp contains various minerals, proteins, vitamins, alginic acid, fucoidin, oxo, etc., which provides nutrition to the scalp and hair and has the effect of making hair soft and clean.

In particular, alginic acid and fucoidin are mucilage components that are abundant in seaweed such as kelp. When applied to powdered hair dye, they not only increase the adhesion and viscosity of the product, but also have anti-allergenic and anti-inflammatory effects, reducing itchiness and It can minimize irritation to sensitive scalp, which causes stinging, and supply nutrition to hair. Additionally, oxo is a hair growth promoter and can suppress hair loss and give shine to hair.

The second thickener may be a thickener commonly used in hair dyes, and for example, at least one type of thickener selected from the group consisting of a cellulose-based thickener, a guar-based thickener, and a dextrin-based thickener can be used. .

At this time, the second thickener is preferably included in an amount of 5 to 200 parts by weight, preferably 10 to 190 parts by weight, and more preferably 15 to 180 parts by weight, based on 100 parts by weight of the first thickener. At this time, if it is less than the above range, the viscosity decreases, and if it exceeds the above range, mixing becomes difficult.

The cellulose-based thickener may use various ingredients known as thickeners or thickeners in the field, including sodium carboxymethyl cellulose and carboxymethyl cellulose starch. However, when using the above-mentioned sodium carboxymethyl cellulose, using a 1% aqueous solution with a viscosity of 1000 to 3000 and an etherification degree of 0.7 to 0.9 provides compatibility with other ingredients and a thickening effect including the viscosity range described later. It is preferable to use a mixture of sodium carboxymethyl cellulose and carboxymethyl cellulose starch. When mixed with carboxymethylcellulose starch, the feeling of use does not decrease even during long-term storage.

Any guar-based thickener may be used. For example, guar hydroxypropyltriammonium chloride can be used.

The dextrin-based thickening agent may be any dextrin-based thickener, for example, maltodextrin can be used.

Mugwort powder or kelp powder included as the first thickener of the present invention not only improves the viscosity of the hair dye composition by replacing part of the second thickener, which is a thickener commonly used in conventional hair dyes, but also contains the active ingredients of mugwort or kelp. It is effective as it prevents damage to the scalp and hair and provides nutrition.

In one embodiment, the thickener of the powder hair dye may be composed of 30 to 40% by weight of mugwort powder, 10 to 20% by weight of a cellulose-based thickener as a second thickener, and 40 to 50% by weight of a dextrin-based thickener.

In another embodiment, the thickener of the powdered hair dye may consist of 70 to 80% by weight of mugwort powder, 5 to 15% by weight of kelp powder, and 10 to 20% by weight of a cellulose-based thickener.

Expression dyes typically include intermediates and couplers, and depending on the color to be expressed, the intermediates and couplers may be included in different types and amounts.

Each component of the intermediate and coupler is PPD (p-Phenylenediamine), PPDS (p-Phenylenediamine sulfate), TDS (Toluene-2,5-diamine sulfate), MAPS (m-Aminophenol sulfate), PAPS (p-Aminophenol sulfate), It is selected from components consisting of MAP (m-Aminophenol), PAP (p-Aminophenol), RS (Resorcinol), and 24DAPE (2,4-Diaminophenoxyethanol Dihydrochloride).

At this time, the average diameter of the intermediate and coupler is 0.1 mm to 0.7 mm. If it is less than the above range, the particles are light and fly away, and if it exceeds the above range, they become entangled with the thickener and the color development power is reduced.

The intermediate and the coupler penetrate into the hair and polymerize to act as an expression dye, which forms a pigment represented by the following formula (1) to dye the hair.

[Formula 1]

[PPD]a-[PPDS]b-[TDS]c-[PAPS]d-[PAP]e-[RS]f-[MAPS]g-[MAP]h-[24DAPE]i

(At this time, a, b, c, d, e, f, g, h, i are the molar ratio of each compound and are a value greater than 0, a+b+c+d+e+f+g+h+i= 1, a+b+c+d and e+f+g+h+i are each greater than 0, and the value of (a+b+c+d)/(e+f+g+h+i) is It is within the range of 0.1 to 20.)

The expression dye is preferably contained in an amount of 70 to 150 parts by weight based on 100 parts by weight of the metal peroxide salt of the core of the microbead. If it is less than the above range, sufficient hair dyeing power cannot be obtained due to insufficient dye composition ratio, which causes a problem of lowered color development power. If it exceeds the above range, the desired dyeing effect of the optimal color cannot be expected and problems of skin discoloration arise. The expressed dye having a composition according to Formula 1 may be expressed by oxygen (O ₂ ) derived from a metal peroxide salt obtained from the core component of the microbead.

In particular, when [MAPS] and [PAPS] are included, it is possible to provide vivid color development of the expressed pigment and fastness to washing.

The dispersant is preferably contained in the range of 2 to 20 parts by weight based on 100 parts by weight of the metal peroxide salt of the core of the microbead. At this time, if it is less than the above range, a problem arises in which the powder clumps, and if it exceeds the above range, a problem occurs in which white powder precipitates.

At this time, various types of dispersants known as dispersants in the hair dye field can be used, including magnesium stearate and the like.

The powder hair dye according to an embodiment of the present invention is dissolved in water at a weight ratio of 1:5 to 1:20 (ratio of powder hair dye: water) and then the viscosity is measured with a Brookfield viscometer at 25°C for 1 minute and a rotation speed of 6 rpm. It is preferably 10,000 to 70,000 cPs, and more preferably 15,000 to 50,000 cPs. At this time, considering that cosmetic compositions provided in cream type are usually around 70,000 cPs, the viscosity value corresponds to an appropriate viscosity range that does not drip when dissolved in water and then applied to hair as a liquid type.

In addition, the pH is preferably 6 to 9 to provide color stability and washing fastness, but if it is less than the above range, the dyeing power is lowered, and if it exceeds the above range, a red color appears. It happens.

At this time, in order to adjust the pH of the powdered hair dye and effectively block moisture, a desiccant with the same ingredients as the shell of the microbeads described above can be further used.

Meanwhile, the thickener and dispersant can be coated using one or more substances selected from silica, oil, and phosphorus pentoxide as a coating agent. In this case, the dyeing effect is increased by providing a barrier to moisture penetrating into the dispersant and thickener, and when stored, It can also reduce the moisture content and provide stability over time.

In particular, when the metal peracid salt is coated with a desiccant, a dispersant, and a thickener, moisture penetration during the manufacturing process can be prevented, and the moisture content does not increase over time.

At this time, the coating agent is preferably used in an amount of 0.5 to 3 parts by weight based on 100 parts by weight of each thickener or dispersant.

Meanwhile, in the embodiments of the present invention, the powdered hair dye has a moisture content of 4% or less when the metal peracid is coated with a desiccant after 60 days of manufacture, and 3% or less when the metal peracid is coated with a desiccant, a dispersant, and a thickener. has At this time, the moisture content of the hair dye can be obtained by measuring the dehumidification amount, which is the weight of the sample remaining after evaporating the moisture.

In other words, even 60 days after manufacture, the powder hair dye having the above moisture content continues to have a moisture content below the above moisture content immediately after manufacture. Powdered hair dye containing this amount of moisture increases the dyeing effect and is especially effective in increasing the value of L in the Lab color coordinate system.

Below, we will look at embodiments of the present invention.

Example

<Example 1: Preparation of microbeads>

First, to prepare microbeads for hair dye, 100 g of sodium percarbonate was prepared from an aqueous hydrogen peroxide solution and an aqueous sodium carbonate solution by fluidized bed growth granulation, and the aqueous sodium sulfate solution was sprayed on the fluidized bed at a fluidized bed temperature of 55 to 60°C and water was evaporated at the same time. Then, it is dried at a temperature of 90°C or lower for 30 minutes to form a coating layer containing 2g of sodium sulfate. At this time, the average size of the formed microbeads was 0.7mm.

<Example 2: Preparation of microbeads>

First, to prepare microbeads for hair dye, 100 g of sodium percarbonate was prepared from an aqueous hydrogen peroxide solution and an aqueous sodium carbonate solution by fluidized bed growth granulation, and the aqueous sodium sulfate solution was sprayed on the fluidized bed at a fluidized bed temperature of 55 to 60°C and water was evaporated at the same time. Then, it is dried at a temperature of 90°C or lower for 30 minutes to form a coating layer containing 1.5g of sodium sulfate. At this time, the average size of the formed microbeads was 0.6mm.

<Example 3: Preparation of microbeads>

First, to prepare microbeads for hair dye, 100 g of sodium percarbonate was prepared from an aqueous hydrogen peroxide solution and an aqueous sodium carbonate solution by fluidized bed growth granulation, and the aqueous sodium sulfate solution was sprayed on the fluidized bed at a fluidized bed temperature of 55 to 60°C and water was evaporated at the same time. Then, it is dried at a temperature of 90°C or lower for 30 minutes to form a coating layer containing 2.5g of sodium sulfate. At this time, the average size of the formed microbeads was 0.8 mm.

<Example 4: Powder hair dye>

A natural brown powder hair dye was prepared by mixing 13.5 g of microbeads (0.265 g of coating layer) of Example 1, 13.79 g of expression dye, 20 g of the first thickener, 33.8 g of the second thickener, 1 g of the dispersant, and 11.41 g of the desiccant.

At this time, the expression dye used was 5.45g of p-phenylenediamine sulfate, 1.47g of m-aminophenol sulfate, 4.25g of p-aminophenol sulfate, and 2.62g of resorcinol, 20g of mugwort powder as the first thickener, and 20g of mugwort powder as the second thickener. 8.8g of zero cellulose gum and 25g of dextrin were used, and 1g of magnesium stearate was used as a dispersant. Additionally, 11.4 g of sodium sulfate was used as a desiccant, 5 g of sodium ascorbate was used as an antioxidant, and 1.5 g of disodium lauryl sulphosuccinate was used as a surfactant.

<Example 5: Powder hair dye>

A natural brown powder hair dye was prepared by mixing 13.5 g of microbeads (coating layer 0.265 g) of Example 1, 13.79 g of expression dye, 45 g of first thickener, 8.8 g of second thickener, 1 g of dispersant, and 11.41 g of desiccant.

At this time, the expression dye used was 5.45g of p-phenylenediamine sulfate, 1.47g of m-aminophenol sulfate, 4.25g of p-aminophenol sulfate, and 2.62g of resorcinol, and the first thickener was 40g of mugwort powder and 5g of kelp powder. , 8.8 g of cellulose gum was used as a second thickener, and 1 g of magnesium stearate was used as a dispersant. Additionally, 11.4 g of sodium sulfate was used as a desiccant, 5 g of sodium ascorbate was used as an antioxidant, and 1.5 g of disodium lauryl sulphosuccinate was used as a surfactant.

<Example 6: Powder hair dye>

A dark brown powder hair dye was prepared by mixing 13.5 g of microbeads (0.20 g of coating layer) of Example 2, 13.26 g of expression dye, 45 g of the first thickener, 8.8 g of the second thickener, 1 g of the dispersant, and 11.94 g of the desiccant.

At this time, the expression dyes used were 7.64g of p-phenylenediamine sulfate, 1.52g of m-aminophenol sulfate, 1.78g of toluene 2,5-diamine sulfate, 1.1g of p-aminophenol sulfate, and 1.22g of resorcinol. 40g of mugwort powder, 5g of kelp powder were used as the first thickener, 8.8g of cellulose gum was used as the second thickener, and 1g of magnesium stearate was used as the dispersant. Additionally, 11.94 g of sodium sulfate was used as a desiccant, 5 g of sodium ascorbate was used as an antioxidant, and 1.5 g of disodium lauryl sulphosuccinate was used as a surfactant.

<Example 7: Powder hair dye>

A black powder hair dye was prepared by mixing 13.5 g of microbeads (0.329 g of coating layer) of Example 3, 16.97 g of expression dye, 45 g of the first thickener, 8.8 g of the second thickener, 1 g of the dispersant, and 8.23 g of the desiccant.

At this time, the expression dye used was 12.6g of p-phenylenediamine sulfate, 0.77g of m-aminophenol sulfate, and 3.6g of toluene 2,5-diamine sulfate, and the first thickener was 40g of mugwort powder, 5g of kelp powder, and the second thickener. 8.8 g of zero cellulose gum was used, and 1 g of magnesium stearate was used as a dispersant. Additionally, 8.23 g of sodium sulfate was used as a desiccant, 5 g of sodium ascorbate was used as an antioxidant, and 1.5 g of disodium lauryl sulphosuccinate was used as a surfactant.

<Example 8: Powder hair dye>

A natural brown powder hair dye was prepared in the same manner as the powder hair dye manufacturing method in Example 4, except that 13.5 g of sodium percarbonate prepared by fluidized bed growth powder from aqueous hydrogen peroxide and sodium carbonate solution was used instead of microbeads.

<Example 9: Powder hair dye>

A natural brown powder hair dye was prepared in the same manner as the powder hair dye manufacturing method in Example 5, except that 13.5 g of sodium percarbonate prepared by fluidized bed growth powder from aqueous hydrogen peroxide and sodium carbonate solution was used instead of microbeads.

<Example 10: Powder hair dye>

A dark brown powder hair dye was prepared in the same manner as the powder hair dye manufacturing method in Example 6, except that 13.5 g of sodium percarbonate prepared by fluidized bed growth powder from aqueous hydrogen peroxide and sodium carbonate solution was used instead of microbeads.

<Example 11: Powder hair dye>

A black powder hair dye was prepared in the same manner as the powder hair dye manufacturing method in Example 7, except that 13.5 g of sodium percarbonate prepared by fluidized bed growth powder from an aqueous hydrogen peroxide solution and an aqueous sodium carbonate solution was used instead of microbeads.

Comparative example

<Comparative Example 1: Powder hair dye>

A light brown powder hair dye was prepared by mixing 24.88 g of sodium percarbonate, 23.99 g of expression dye, 21.54 g of secondary thickener, 1.99 g of dispersant, and 24.88 g of desiccant, prepared by fluidized bed growth powder from aqueous hydrogen peroxide and sodium carbonate solution.

At this time, the expression dye used was 8.56g of p-phenylenediamine sulfate, 3.98g of m-aminophenol, 8.95g of p-aminophenol, and 2.49g of resorcinol, and the second thickener was 11.59g of cellulose gum and guarhydroxypropyl. 4.97g of trimonium chlorite, 4.97g of dextrin were used, and 1.99g of magnesium stearate was used as a dispersant. Additionally, 24.88 g of sodium sulfate was used as a desiccant, and 2.73 g of disodium lauryl sulfosuccinate as a surfactant was used.

<Comparative Example 2: Powder hair dye>

As a thickener, 8.8 g of cellulose gum and 45 g of dextrin, which are second thickeners, were used, and a natural brown powder hair dye was prepared in the same manner as the powder hair dye manufacturing method in Example 4, except that mugwort powder was not used.

<Comparative Example 3: Powder hair dye>

As a second thickener, 8.8 g of cellulose gum, 20 g of guahydroxypropyltrimonium chlorite, and 25 g of dextrin were used, and a natural brown powder was produced in the same manner as the powder hair dye manufacturing method in Example 4, except that mugwort powder was not used. A hair dye was prepared.

Accordingly, the powder hair dye compositions of Examples 4 to 11 and Comparative Examples 1 to 3 were summarized as in Table 1 below.

microbead Expression dye 1st thickener 2nd thickener dispersant desiccant color Example 4 13.5g 13.79g 20g 33.8g 1g 11.41g natural brown Example 5 13.5g 13.79g 45g 8.8g 1g 11.41g natural brown Example 6 13.5g 13.26g 45g 8.8g 1g 11.94g dark brown Example 7 13.5g 16.97g 45g 8.8g 1g 8.23g black Example 8 13.5g sodium percarbonate 13.79g 20g 33.8g 1g 11.41g natural brown Example 9 13.5g sodium percarbonate 13.79g 45g 8.8g 1g 11.41g natural brown Example 10 13.5g sodium percarbonate 13.26g 45g 8.8g 1g 11.94g dark brown Example 11 13.5g sodium percarbonate 16.97g 45g 8.8g 1g 8.23g black Comparative Example 1 Sodium percarbonate 24.75g 23.99g 0g 21.54g 1.99g 24.88g bright brown Comparative Example 2 13.5g 13.79g 0g 53.8g 1g 11.41g natural brown Comparative Example 3 13.5g 13.79g 0g 53.8g 1g 11.41g natural brown

<Experimental Example 1: Hair dye evaluation>

The hair dyes of the examples were mixed with water at a ratio of 1:10, applied to a person's hair with a brush, and left at 30°C or lower for 30 minutes. Afterwards, the hair dye application liquid was washed off, washed with shampoo and treated with rinse once each, then the hair was dried with a dryer and the hair dyeing power was visually evaluated.

The powdered hair dyes of Examples 4 to 11 showed uniform natural brown, dark brown, and black colors, respectively. Figure 2 is a photo taken of this.

<Experimental Example 2: Evaluation of initial operability and stability over time>

The powder hair dyes of Examples 4, 5, 8, and 9 and Comparative Examples 1 to 3 were evaluated for initial operability and stability over time.

Initial operability was evaluated for ease of operation when the powdered hair dyes of Examples and Comparative Examples were mixed with water at a ratio of 1:10 and applied to human hair with a brush.

Ease of operation was evaluated as follows: whether it mixes well with water and whether it can be stored well in the hand without flowing. In addition, the Examples were evaluated for stability over time by measuring ease of operation after 5 minutes at 25°C, and were evaluated by applying the evaluation criteria listed in Table 2 below. The evaluation results are shown in Table 3.

Evaluation standard Evaluation score Mixes very evenly with water, does not flow and holds well in hand. 5 Mixes evenly with water, does not flow and holds well in hand. 4 Mixes evenly with water, but has some flowability. 3 It does not mix uniformly with water and has some flowability. 2 It does not mix uniformly with water and has strong flow properties so it holds well in the hand. One

Example Initial Viscosity cPs Initial operability evaluation score Viscosity cPs after 30 minutes Aging stability evaluation score Example 4 21,000 5 20,000 5 Example 5 45,000 5 44,000 5 Example 8 20,000 5 19,000 5 Example 9 45,000 5 43,000 5 Comparative Example 1 32,000 4 27,000 2 Comparative Example 2 8,000 4 8,000 4 Comparative Example 3 100,000 or more 4 100,000 or more 4

According to this, the powder hair dye according to the embodiment of the present invention had a viscosity of 20,000 cPs to 45,000 cPs as measured with a Brookfield viscometer at 25°C, 1 minute, and a rotation speed of 6 rpm, and was applied to hair as a liquid type so that it did not flow down. It was confirmed that it falls within the appropriate viscosity range.

Compared to the powdered hair dye of Comparative Example 2, Examples 4, 5, 8, and 9 contain mugwort or mugwort and kelp powder as the first thickener, and are effective when replacing a portion of the second thickener with the first thickener. It was confirmed that the viscosity increased.

Additionally, in the examples, the change in viscosity after 30 minutes compared to the initial viscosity was within the range of 1000 to 2000 cPs. However, by comparing the initial viscosity of the powder hair dye of Comparative Example 1 containing a metal peroxide salt that was not coated with sodium sulfate and the viscosity after 30 minutes, it can be seen that the viscosity change over time was about 5,000 cPs. Accordingly, it can be seen that the powder hair dye containing a metal peroxide salt that was not coated with a desiccant had a large change in viscosity over time when used and that its operability deteriorated.

<Experimental Example 3: Evaluation of feeling of use>

Thirty adult women aged 20 to 35 years with long straight hair were divided into groups A, B, and C, with 10 people each. Group A was given the powdered hair dye of Example 4, Group B was Example 5, and Group C was given the powdered hair dye of Comparative Example 2 in water. It was dissolved at a ratio of 1:10 (powder hair dye:water), applied to the hair, rinsed with water 20 minutes later, and the results were observed.

The feeling of use was assessed by evaluating satisfaction with the feel of the skin during use and the gloss, smoothness, odor, and scalp itchiness after use. It was evaluated in 5 stages according to the evaluation criteria in Table 4 below, and the average results are shown in Table 5 below.

Evaluation standard Evaluation score Very good 5 A little good 4 commonly 3 a bit not good 2 not very good One

division Group A (Example 4) Group B (Example 5) Group C (Comparative Example 2) Feeling when using 4.0 4.1 3.2 shine 4.1 4.3 3.2 lubricity 4.1 4.4 3.3 smell 4.2 4.2 2.8 scalp itching 4.2 4.3 3.4

<Experimental Example 4: Evaluation of dehumidification amount>

60 days after production according to Examples 4 to 5 and Comparative Example 1, the powdered hair dye was evaporated at 105 degrees using a heated moisture analyzer (MX-50, AND, Korea) to determine the weight of the remaining sample. As a result of measuring the dehumidification amount, the powder hair dye of the example had a moisture content of 4% or less. Table 6 is a table summarizing this.

Dehumidification amount Example 4 3.4% Example 5 4% Comparative Example 1 6%

The features, structures, effects, etc. illustrated in each of the above-described embodiments can be combined or modified and implemented in other embodiments by a person with ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

Claims (14)

It is a powder hair dye that is mixed with water when used,
Microbeads comprising a core containing a metal peroxide salt and a shell containing a desiccant that surrounds the core to block moisture or dry it;
Expression dye containing an intermediate and a coupler; and
A thickener comprising a first thickener derived from natural ingredients and a second thickener different from the first thickener,
A powder hair dye wherein the first thickener includes mugwort powder, and the mugwort powder is included in an amount of 30 to 330 parts by weight based on 100 parts by weight of the metal peracid salt. delete According to clause 1,
The second thickener is a powder hair dye that is at least one selected from the group consisting of a cellulose-based thickener, a guar-based thickener, and a dextrin-based thickener. According to clause 3,
The second thickener is a powder hair dye included in an amount of 5 to 200 parts by weight based on 100 parts by weight of the first thickener. According to paragraph 4,
The first thickener is a powder hair dye further comprising kelp powder. According to clause 5,
The weight ratio of the mugwort powder and the kelp powder contained in the first thickener (mugwort powder:kelp powder) is a powder hair dye of 4:1 to 10:1. According to clause 6,
A powder hair dye in which the core is sodium percarbonate. According to clause 7,
The desiccant is included in the outermost shell of the shells, and is a powdered hair dye that is sodium sulfate. According to clause 8,
A powder hair dye comprising the desiccant in the range of 0.5 to 3 parts by weight based on 100 parts by weight of the metal peracid salt. According to clause 9,
The expressed dye is a powder hair dye expressed as a structure according to the following formula (1).
[Formula 1]
[PPD(p-Phenylenediamine)]a-[PPDS(p-Phenylenediamine sulfate)]b-[TDS(Toluene-2,5-diamine sulfate)]c-[PAPS(p-Aminophenol sulfate)]d-[PAP( p-Aminophenol)]e-[RSRS(Resorcinol)]f-[MAPS(m-Aminophenol sulfate)]g-[MAP(m-Aminophenol)]h-[24DAPE(2,4-Diaminophenoxyethanol Dihydrochloride)]i
(At this time, a, b, c, d, e, f, g, h, i are the molar ratio of each compound and are a value greater than 0, a+b+c+d+e+f+g+h+i= 1, a+b+c+d and e+f+g+h+i are each greater than 0, and the value of (a+b+c+d)/(e+f+g+h+i) is It is within the range of 0.1 to 20.) According to clause 10,
The expression dye is a powder hair dye containing 70 to 150 parts by weight based on 100 parts by weight of the metal peracid salt. According to clause 11,
The powder hair dye further includes a dispersing agent. According to clause 12,
The powder hair dye further includes a desiccant of the same ingredient as the shell. According to clause 13,
The powder hair dye is dissolved in water at a weight ratio of 1:5 to 1:20 (powder hair dye:water ratio) and then has a viscosity of 10,000 cPs to 70,000 cPs as measured with a Brookfield viscometer.