KR102379036B1 - Hair dye composition - Google Patents

Abstract

The present invention relates to a hair dye composition that is easy to apply the composition to the hair by implementing a formulation having stretching properties, can be dyed closely because the hair dye composition does not flow down, and has excellent color uniformity and hair permeability of the pigment. The hair dye composition of the present invention includes a pigment part, a thickener, an alkali agent, a solubilizer, and an aqueous phase, wherein the thickener includes hydroxypropyl methylcellulose steaoxy ether.

Description

Hair dye composition {Hair dye composition}

The present invention relates to a hair dye composition that is easy to apply to the hair by implementing a formulation having a stretching property, can be dyed closely because it does not flow down, and has excellent color uniformity and hair permeability of the pigment.

According to the tendency to emphasize individuality, the demand for hair dye that gives various colors to hair is increasing, and various hair dye products are being developed to satisfy this demand. Hair dyes are divided into temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes according to the mechanism of dyeing. In the case of temporary and semi-permanent hair dyes, acid hair dyes, permanent hair dyes using oxidative polymerization are mainly used because of their short duration and severe water loss.

Permanent hair dye consists of a hair dye and an oxidizing agent, and the hair dye includes a dye for color and an alkali agent such as ammonia and monoethanolamine that swells the hair and promotes the decomposition of hydrogen peroxide to cause an oxidation reaction. Also included are reducing agents for controlling the oxidation reaction of dyes, antioxidants and chelating agents for sequestering metal ions. In addition, fatty alcohols, surfactants, hair conditioning agents such as cationic polymers, fragrances, and the like are included. As the oxidizing agent, hydrogen peroxide and the like are used, which decomposes melanin in the hair to brighten the background color of the hair, and promotes the oxidation reaction of the dye.

These oxidized permanent hair dyes have the advantage of excellent color persistence because the dye penetrates into the hair by oxidative polymerization to show color. However, the protein of the hair may be damaged by the alkali agent and hydrogen peroxide used in the permanent hair dye, and in particular, if the content of the alkali agent is increased to express the color more brightly, the hair damage is further increased. In addition, when the content of ammonia is increased, there is a problem that a lot of odor is generated. In addition, hair dyeing is not rapid, so hair damage and scalp irritation may occur when applied for a long time (eg, 10 to 40 minutes).

Meanwhile, the hair dye may be prepared in various formulations such as cream, powder, liquid, bubble, aerosol, and the like. Although bubble or liquid hair dye is easy to apply, it flows down from the hair and is inconvenient to use, so cream-type products are widely used. Cream-type products have the advantage of being convenient to use, but have the disadvantage that it is not easy to apply to the inside of the hair because they are generally applied to the hair using a brush. For this reason, there is a problem that the dyeing may not be made uniformly and may appear uneven.

Accordingly, there is a need to develop a hair dye that can be dyed closely because it does not flow down from the hair, can be easily applied to the inside of the hair, can ensure color uniformity, and minimize hair damage and scalp irritation.

The present invention provides a hair dye composition that is easy to apply to hair by implementing a formulation having an elongating property, can be dyed closely because it does not flow down, and has excellent color uniformity and hair permeability of the pigment.

The hair dye composition of the present invention includes a pigment part, a thickener, an alkali agent, a solubilizer and an aqueous phase, the thickener includes hydroxypropyl methylcellulose stearic ether, and the solubilizer includes polyethylene glycol ether of octyldodecanol includes

The present invention provides a hair dye composition that is easy to apply to hair by implementing a formulation having an elongating property, can be dyed closely because it does not flow down, and has excellent color uniformity and hair permeability of the pigment. In addition, the hair dye composition of the present invention can minimize hair damage by lowering the content of the alkali agent.

1 is a photograph observing the formulation of the hair dye composition of Example 1.
2 is a photograph observing the formulation of the hair dye composition of Comparative Example 1.
3 is a photograph showing a method of measuring the length of the hair dye composition.
4 is a photograph of hair dyed using the hair dye compositions of Example 2 and Comparative Examples 6 and 7, respectively.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated. However, it is not limited only by the following content, and each component may be variously modified or selectively mixed as needed. Accordingly, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The hair dye composition of the present invention includes a pigment part, a thickener, an alkali agent, a solubilizer and an aqueous phase, the thickener includes hydroxypropyl methylcellulose stearic ether, and the solubilizer includes polyethylene glycol ether of octyldodecanol includes In addition, the hair dye composition of the present invention may further include additives such as a fading inhibitor, a chelating agent, a pH adjuster, a moisturizing agent, a preservative, and a fragrance.

pigment department

The dye unit includes a dye precursor and a coupler, and as the dye precursor and the coupler, those commonly used in the art may be used without particular limitation. In addition, the coloring part may further include purified water.

Non-limiting examples of the dye precursor include o-aminophenol, p-aminophenol, toluene-2,5-diamine hydrochloride, p-phenylenediamine hydrochloride, toluene-2,5-diamine, p-phenylenediamine, sulfuric acid p-methylaminophenol, sulfuric acid o-aminophenol, sulfuric acid p-aminophenol, toluene-2,5-diamine sulfate, p-phenylenediamine sulfate, and the like, and these may be used alone or in combination of two or more. Non-limiting examples of the coupler include 2-methyl-5-hydroxyethyl aminophenol, p-amino-o-cresol, m-aminophenol, hydrochloric acid 2,4-diaminophenoxyethanol, hydrochloric acid m-phenylenediamine , m-phenylenediamine, N-methyl-p-phenylenediamine, sulfuric acid p-amino-o-cresol, sulfuric acid 4-ethoxy-m-phenylenediamine, sulfuric acid m-phenylenediamine, α-naphthol, rezo There are cinol, 2-methyl resorcinol, and the like, and these may be used alone or in combination of two or more.

Based on the total weight of the hair dye composition, 5 to 15% by weight of the pigment part may be included. For example, based on the total weight of the hair dye composition, 0.1 to 2.0 wt% of a dye precursor, 0.1 to 2.0 wt% of a coupler, and 1.0 to 14.8 wt% of purified water may be included.

thickener

The thickener serves to form and maintain a formulation with stretching properties of the hair dye composition of the present invention.

The thickener comprises hydroxypropyl methylcellulose steaoxy ether. Hydroxypropyl methylcellulose stearoxy ether serves to increase the viscosity of the composition, maintain the viscosity from being lowered by the alkali agent when mixed with an alkali agent, and form a film on the hair.

The thickener may further include a conventional thickener used in the art. Non-limiting examples of the thickener include an acrylate-based thickener such as acrylate/C10-30 alkyl acrylate crosspolymer, acryloyldimethyltaurate/VP copolymer, and glyceryl poly(meth)acrylate, These may be used alone or in mixture of two or more. When the acrylate-based thickener is mixed, the high temperature stability of the hair dye composition may be improved.

For example, hydroxypropyl methylcellulose stearic ether and glyceryl poly(meth)acrylate may be mixed in a weight ratio of 1:4.

Based on the total weight of the hair dye composition, the thickener may be included in an amount of 0.16 to 8.5% by weight, for example, 1.1 to 4% by weight. For example, based on the total weight of the hair dye composition, 0.15 to 3.5% by weight of hydroxypropyl methylcellulose stearoxy ether, such as 0.1 to 1% by weight, and 0.01 to 5% by weight of an acrylate-based thickener, such as 1 to 3% by weight.

alkali agent

The alkali agent swells the hair and acts to cause an oxidation reaction. As the alkali agent, those commonly used in the art may be used without particular limitation. Non-limiting examples of the alkali agent include aqueous ammonia, monoethanolamine, triethanolamine, potassium hydroxide, sodium hydroxide, and the like, and these may be used alone or in combination of two or more.

Based on the total weight of the hair dye composition, 1 to 10% by weight of the alkali agent may be included.

solubilizer

The solubilizer serves to stabilize water-insoluble components such as oils and fragrances in the hair dye composition.

The solubilizer includes polyethylene glycol ether of octyldodecanol. Non-limiting examples of polyethylene glycol ethers of octyldodecanol include octyldodeces-5, octyldodeces-10, octyldodeces-16, octyldodeces-20, octyldodeces-25, and the like, and these are or a mixture of two or more.

The solubilizing agent may further include C12-14 pareth-9, C12-14 pareth-12, C12-14 pareth-17, or a mixture thereof. When the solubilizer is further included, it is more effective to form a formulation in which the composition is continuously stretched.

For example, polyethylene glycol ether of octyldodecanol and C12-14 pareth-12 may be mixed in a weight ratio of 1:1. As another example, octyldodeces-16 and C12-14 pareth-12 may be mixed in a weight ratio of 1:1. When the two types of solubilizers are mixed in the above-mentioned range, the effect of increasing the formulation of the composition can be more excellently exhibited.

Based on the total weight of the hair dye composition, the solubilizer may be included in an amount of 0.2 to 5% by weight, for example, 0.2 to 2% by weight. For example, based on the total weight of the hair dye composition, 0.1 to 2.5 wt% of polyethylene glycol ether of octyldodecanol, for example, 0.1 to 1 wt% may be included. As another example, based on the total weight of the hair dye composition, 0.1 to 2.5 wt% of polyethylene glycol ether of octyldodecanol, for example 0.1 to 1 wt%, and C12-14 Pareth-12 0.1 to 2.5 wt%, for example 0.1 to 1% by weight. As another example, based on the total weight of the hair dye composition, octyldodeces-16 0.1 to 2.5 wt%, for example 0.1 to 1 wt%, and C12-14 pareth-12 0.1 to 2.5 wt%, for example 0.1 to 1 wt% % by weight.

Awards

The aqueous phase comprises polyol and water. In addition, the aqueous phase may further include an antioxidant.

Non-limiting examples of the polyol include dipropylene glycol, glycerin, propylene glycol, hexylene glycol, butylene glycol, methylpropanediol, etc., which may be used alone or in combination of two or more. can

Non-limiting examples of the antioxidant include sodium sulfite, erythobic acid, and the like, and these may be used alone or in combination of two or more.

The content of the aqueous phase is not particularly limited, and may be adjusted so that the total weight of the hair dye composition is 100% by weight. For example, based on the total weight of the hair dye composition, 0.1 to 10 wt% of a polyol, 0.1 to 2 wt% of an antioxidant, and the remainder of water may be included.

other ingredients

The hair dye composition may further include additives commonly used in the art, such as a discoloration inhibitor, a chelating agent, a pH adjuster, a humectant, a preservative, and a fragrance.

As the fading inhibitor, polycutternium-39, polycutternium-10, polycutternium-22, polycutternium-48, etc. may be used. As the chelating agent, disodium EDTA may be used, and as the pH adjusting agent, citric acid or the like may be used. As a preservative, sodium benzoate, 1,2-hexanediol, ethylhexylglycerin, etc. can be used.

The hair dye composition of the present invention has a formulation having stretch properties. Therefore, the hair dye composition of the present invention is easy to apply to the hair, does not flow down and can be dyed closely, and exhibits excellent color uniformity and hair permeability of the dye. In addition, since the hair dye composition of the present invention has excellent adhesion, excellent dyeing efficiency can be obtained even without a large amount of alkali agent.

In the present invention, the degree of stretching of the hair dye composition is determined by dropping the hair dye composition on a glass substrate, then pouring 2-3 g of the composition on the lower surface of a metal spatula, lifting the composition, and continuously shooting from the moment of stretching until it breaks, The length of the breaking moment was measured and evaluated. The stretched length of the hair dye composition according to the present invention may be 2 to 10 cm, for example 3 to 9 cm, in another example 4 to 8 cm. If the length of the hair dye composition exceeds the above-mentioned range, the dye may be attached to parts of the body other than the hair during the user's dyeing process. there is.

The hair dye composition of the present invention may be prepared according to various methods known in the art. For example, heating the aqueous phase to 60 ℃, heating the pigment phase to 80 ℃, and then mixing; adding a thickener while maintaining the mixture at 65° C. and stirring the thickener to mix well for 10-15 minutes; After cooling the mixture to 40 ℃, adding an alkali agent; And it can be prepared by a method comprising the step of adding and mixing the solubilized image while maintaining the mixture at 35 ℃.

Hereinafter, the present invention will be described in more detail through examples. However, the following examples are provided to help the understanding of the present invention, and the scope of the present invention is not limited to the examples in any sense.

[Example 1]

According to the composition of Table 1 below, the cosmetic composition of Examples was prepared.

[Comparative Example 1-4]

According to the composition of Table 1 below, the cosmetic composition of each comparative example was prepared.

The formulations of the hair dye compositions of Examples and Comparative Examples were visually confirmed. As shown in FIG. 1 , the composition of Examples including hydroxypropylmethylcellulose steaoxy ether as a thickening agent exhibited an elongated property. On the other hand, as shown in FIG. 2, the composition of Comparative Example 1, which did not include hydroxypropylmethylcellulose steaoxy ether as a thickener, did not exhibit stretching properties. In addition, although not shown, the composition of Comparative Example 2-4 also exhibited the same properties as the composition of Comparative Example 1.

[Example 1-8]

According to the composition of Table 2 below, the cosmetic composition of each Example was prepared.

[Comparative Example 5]

According to the composition of Table 2 below, a cosmetic composition of Comparative Example was prepared.

As shown in Figure 3, after dropping the hair dye composition of each Example and Comparative Example on a glass substrate, 2-3 g of the composition is buried on the lower surface of a metal spatula, and the composition is continuously lifted from the moment it is stretched until it breaks. By taking a picture, the length of the moment of breakage was measured. Each composition was measured 5 times, and the average thereof is shown in Table 2 above.

As shown in Table 2, the composition of Examples containing octyldodeces-16 as a solubilizer formed a formulation extending by 2 cm or more. On the other hand, the composition of Comparative Example 5, which did not include octyldodeces-16 as a solubilizer, formed a formulation elongated to a length of less than 2 cm. In particular, in the case of Example 2, in which octyldodeces-16 and C12-14 pareth-12 were mixed as solubilizers, an even better stretchable formulation was formed.

[Comparative Example 6-7]

The gel hair dye of Comparative Example 6 was prepared according to the composition of Table 3 below, and the cream hair dye of Comparative Example 7 was prepared according to the composition of Table 4 below.

Using white hair, the hair dyeing effect of the hair dye composition (brown color) of Example 2 and Comparative Examples 6 and 7 was evaluated. Mix the hair dye composition (first agent) of each Example and Comparative Example and the second agent containing hydrogen peroxide in a 1:1 ratio, apply each mixture evenly to dry hair, leave it for 25-30 minutes, and rinse with lukewarm water After taking out and drying, the degree of color development was confirmed. After confirming the color development, shampoo and dry with lukewarm water, and then the degree of discoloration was checked. The left side of each figure is the hair after the color development, and the right side is the hair after bleaching.

As shown in FIG. 4 , in Example 2 using the hair dye composition of the present invention, the hair dyeing effect was excellent compared to Comparative Examples 6 and 7 using the conventional gel-type or cream-type hair dye composition. In addition, even after bleaching, the hair dye composition of Example 2 showed less color loss than Comparative Examples 6 and 7. From the above results, it can be confirmed that the hair dye composition according to the present invention exhibits excellent dyeing efficiency and pigment permeability.

In addition, after each hair was dyed in the same manner as in the color development experiment using the hair dye compositions of Example 2 and Comparative Examples 6 and 7, the hair dyeing effect was evaluated using a color difference meter. Using a spectrophotometer CM-600d (Konica Minolta), the density of hair was measured 5 times, and the average was obtained. The lightness L value is measured for dyed hair after correction with a black plate standard. The lightness L value is measured on a scale of 1 to 100, and the higher the value, the darker it is.

As a result of the measurement by the above method, the lightness (L) of the hair dyed with the hair dye compositions of Example 2 and Comparative Examples 6 and 7 was 61.3, 51.5, and 48.7, respectively. From the above results, it can be confirmed that the hair dye composition according to the present invention exhibits excellent dyeing efficiency.

Claims (7)

Contains a pigment part, a thickener, an alkali agent, a solubilizer and an aqueous phase,
wherein the thickening agent comprises hydroxypropyl methylcellulose stearoxy ether;
The solubilizing agent is polyethylene glycol ether of octyldodecanol; And C12-14 Pareth-9, C12-14 Pareth-12, C12-14 Pareth-17, or a hair dye composition comprising a mixture thereof. The hair dye composition according to claim 1, wherein the thickener further comprises an acrylate-based thickener. The hair dye composition according to claim 2, wherein the acrylate-based thickener is glyceryl poly(meth)acrylate. The hair dye composition according to claim 1, wherein the polyethylene glycol ether of octyldodecanol is octyldodeces-16. delete According to claim 1, based on the total weight of the hair dye composition, 5 to 15% by weight of the pigment part, 0.16 to 8.5% by weight of the thickener, 1 to 10% by weight of the alkali agent, 0.2 to 5% by weight of the solubilizer, and the remaining amount A hair dye composition comprising the aqueous phase of The hair dye composition according to claim 1, which is a formulation having stretching properties.

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