JP7437739B2 - hair dye composition - Google Patents

Description

The present invention relates to hair dye compositions. More specifically, the present invention relates to a hair dye composition that does not cause precipitation of basic dye over time at low temperatures, has excellent dyeing properties, and provides volume and smoothness to hair after cumulative hair dyeing.

With the rise in fashion consciousness in recent years, hair coloring agents that allow you to easily change your hair color have become popular among both men and women. There are various types of hair coloring agents, such as permanent hair dyes, semi-permanent hair dyes, bleaching agents, and temporary coloring agents, and each type is used depending on the needs.

Semi-permanent hair dyes are hair coloring agents that are currently used by many people because of this property, although they are inferior to permanent hair dyes in terms of the durability of their hair dyeing effects, they cause less damage to the hair.

Semi-permanent hair dyes are classified into hair manicures that use acid dyes and color treatments that use basic dyes. Although hair nail polish has excellent dyeing properties, it uses benzyl alcohol to penetrate the acidic dye into the hair, and it emits a solvent odor peculiar to benzyl alcohol, which makes the user feel uncomfortable when using it. There are problems like this.

On the other hand, color treatments do not use penetrating agents such as benzyl alcohol, so although the dyeability is slightly lower than that of hair manicures, they do not emit unpleasant solvent odors. In addition, since basic dyes are cationic, they are stable over time even if they contain cationic polymers that have high treatment properties.Containing such ingredients gives hair a smooth and moist feel. It is possible to impart high treatment properties such as

Color treatments are required to have a variety of effects depending on consumer needs. In particular, in the case of color treatments aimed at dyeing gray hair, it is important to have good dyeability in order to blend gray hair into black hair, and to compensate for the loss of hair volume due to aging. Several color treatments have been proposed.

For example, Patent Document 1 describes a method containing glycerin, 1,3-butylene glycol, and a basic dye that has good dyeability, suppresses skin staining, and has good stability over time of basic dyes. A hair dye composition is disclosed.

Patent Document 2 discloses that an amine compound, an α-hydroxy acid, a basic Color treatments containing dyes or HC dyes, silicones or silicone derivatives are disclosed.

JP2019-64947A Japanese Patent Application Publication No. 2014-234371

It is disclosed that the hair dye composition of Patent Document 1 exhibits good dyeability and stability over time as a basic dye. However, when containing glycerin, while giving the hair a moist feel, there is a risk that the volume feeling may be reduced.

It is disclosed that the hair dye composition of Patent Document 2 imparts good fingerability and a suitable volume to hair. However, it contains highly polymerized silicone or silicone derivative, and such highly polymerized silicone or silicone derivative has a very high residual property in the hair. Therefore, it may be accumulated in the hair due to cumulative dyeing, resulting in a loss of volume and stiffness.

Similarly, since the pH of general color treatments is higher than the isoelectric point of hair, cationic polymers that have high treatment properties also have a very high persistence in hair, and the cumulative dyeing creates a sense of volume. There is a risk of deterioration and stiffness.

Furthermore, basic dyes have the property that they tend to precipitate at low temperatures (meaning 5° C. in the present invention). Precipitation of basic dyes may cause changes in the appearance color of the base and the color of dyed hair. Therefore, preventing the precipitation of basic dyes during long-term storage at low temperatures is also an important issue in the formulation design of color treatments.

Therefore, the present invention was made in view of the above problems, and has no precipitation of basic dye over time at low temperatures, has excellent dyeing properties, and gives hair volume and smoothness after cumulative hair dyeing. An object of the present invention is to provide a hair dye composition that imparts the following properties.

The present inventor has discovered that by incorporating methylpolysiloxane having a viscosity of 5 to 100 cSt at 25°C, a hydrocarbon, a cationic surfactant, and a dihydric alcohol having 2 to 6 carbon atoms into a hair dye composition, The inventors have found that the above problems can be solved, and have completed the present invention.

That is, the present invention is a hair dye composition containing a basic dye and used for hair dyeing,
(A) Methylpolysiloxane with a viscosity of 5 to 100 cSt at 25°C (B) Hydrocarbon (C) One or more selected from stearyltrimethylammonium chloride and behenyltrimethylammonium chloride (D) Divalent having 2 to 6 carbon atoms Contains alcohol, the content of the component (A) is 3 to 7% by mass, the content of the component (B) is 1 to 5% by mass, and the content of the component (C) is 0. 5 to 3% by mass, the content of the component (D) is 5 to 10% by mass, and the content of the cationic polymer is 0.1% by mass or less. It is something that provides something.

The hair dye composition of the present invention does not cause precipitation of basic dye over time at low temperatures, has excellent dyeing properties, and imparts volume and smoothness to hair after cumulative hair dyeing.

The present invention will be explained in detail below. Note that all units indicating the content are mass % unless otherwise specified.

The hair dye composition according to the present invention contains (A) methylpolysiloxane having a viscosity of 5 to 100 cSt at 25° C. from the viewpoint of volume and smoothness of hair after cumulative hair dyeing.

The component (A) used in the present invention preferably has a viscosity of 5 to 100 cSt at 25°C, and 10 to 50 cSt, from the viewpoint of volume and smoothness of the hair after cumulative hair dyeing. is more preferable.

The content of the component (A) used in the present invention is preferably 3 to 7% from the viewpoint of volume and smoothness of the hair after cumulative hair dyeing. If the content of the component (A) is less than 3% or more than 7%, there is a risk that the hair will not have a sufficient volume after cumulative hair dyeing.

The hair dye composition according to the present invention contains (B) a hydrocarbon from the viewpoint of volume and smoothness of hair after cumulative hair dyeing.

The component (B) used in the present invention is not particularly limited, but includes, for example, liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, heavy liquid isoparaffin, squalane, etc. It can contain more than one species. Among these, liquid paraffin is preferred from the viewpoint of volume and smoothness of the hair after cumulative hair dyeing, and liquid paraffin having a viscosity of 70 cSt at 40° C. is more preferred.

The content of the component (B) used in the present invention is preferably 1 to 5% from the viewpoint of volume and smoothness of the hair after cumulative hair dyeing. If the content of the component (B) is less than 1% or more than 5%, there is a risk that the hair will not have sufficient volume and smoothness after cumulative hair dyeing.

The hair dye composition according to the present invention contains (C) stearyltrimethylammonium chloride and behenyl chloride, from the viewpoint of the emulsion stability of the hair dye composition and the volume and smoothness of the hair after cumulative hair dyeing. It contains one or more types selected from trimethylammonium, and among them, stearyltrimethylammonium chloride is preferred from the viewpoint of smoothness of hair after cumulative hair dyeing.

The content of the component (C) used in the present invention is 0.5 to 3% from the viewpoint of the emulsion stability of the hair dye composition and the volume and smoothness of the hair after cumulative hair dyeing. is preferable, and 1 to 2.5% is more preferable. If the content of the component (C) is less than 0.5%, there is a risk that the emulsion stability of the hair dye composition may decrease, and the volume and smoothness of the hair after cumulative hair dyeing may be impaired. . If the content of the component (C) exceeds 3%, there is a risk that the hair will not have a sufficient volume after cumulative hair dyeing.

The hair dye composition according to the present invention contains (D) a dihydric alcohol having 2 to 6 carbon atoms in order to prevent precipitation of basic dye over time at low temperatures and from the viewpoint of dyeability.

The component (D) used in the present invention is not particularly limited, but includes, for example, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, pentylene glycol, etc. It can contain one or more species. Among these, ethylene glycol and 1,3-butylene glycol are preferred from the viewpoint of preventing precipitation of basic dye over time at low temperatures.

The content of the component (D) used in the present invention is preferably 5 to 10% from the viewpoint of preventing the basic dye from precipitating over time at low temperatures and from the viewpoint of dyeability. If the content of the component (D) is less than 5%, there is a risk that the basic dye will precipitate over time at low temperatures, and that the dyeability will deteriorate. Even if the component (D) is contained in an amount exceeding 10%, no further improvement in dyeing properties can be expected, or a decrease in dyeing properties and a sufficient volume feeling of the hair after cumulative hair dyeing cannot be expected. There is a possibility that it will not be possible.

The hair dye composition according to the invention contains a basic dye.

The basic dye used in the present invention is not particularly limited, but includes, for example, basic brown 16, basic brown 17, basic red 51, basic red 76, basic blue 75, basic blue 99, basic dye Yellow 57 and the like can be mentioned, and these can contain one or more kinds. Among them, from the viewpoint of blending gray hair with black hair, Basic Brown 16, Basic Brown 17, and Basic Red 51 are preferable, and it is more preferable to use these three types in combination.

The content of the basic dye used in the present invention is not particularly limited, but is preferably 0.001 to 0.5% from the viewpoint of dyeability and skin coloring during hair dyeing. If the content of the basic dye is less than 0.001%, there is a possibility that sufficient dyeability may not be obtained. If the content of the basic dye exceeds 0.5%, there is a risk that the skin will be colored during hair dyeing.

The hair dye composition according to the present invention has a cationic polymer content of 0.1% or less, preferably no content, from the viewpoint of volume and smoothness of the hair after cumulative hair dyeing. . If the content of the cationic polymer exceeds 0.1%, there is a risk that the hair will not have sufficient volume and smoothness after cumulative hair dyeing.

The cationic polymer used in the present invention is not particularly limited, but includes, for example, polyquaternium-6, polyquaternium-7, polyquaternium-10, cationized guar gum, cationized locust bean gum, etc. Can contain two or more types

In addition to the above-mentioned ingredients, the hair dye composition according to the present invention may optionally include various ingredients used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc. other than the above-mentioned ingredients to the extent that the effects of the present invention are not impaired. For example, direct dyes, acid dyes, HC dyes, surfactants, amphoteric polymers, oily ingredients, humectants, thickeners, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, sequestering agents, antioxidants, It can contain one or more selected from plant extracts, crude drug extracts, vitamins, preservatives, dyes, pigments, powders, pH adjusters, ultraviolet absorbers, fragrances, and the like. However, the present invention is not limited to these examples.

The hair dye composition according to the present invention is preferably in the form of a cream or a milky lotion.

The viscosity of the hair dye composition according to the present invention is 3,000 to 50,000 mPa·s or less at 20°C from the viewpoint of ease of taking it out of the container and ease of applying it to hair. It is preferable. If the viscosity is less than 3,000 mPa·s or exceeds 50,000 mPa·s, it may be difficult to take it out of the container and apply it to the hair.

The viscosity of the hair dye composition of the present invention at 20°C is determined by using a helical stand B with a helical stand. It was measured using a type viscometer (model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) under the condition of a No. 4 rotor for 1 minute at a rotation speed of 12 rpm.

The pH of the hair dye composition according to the present invention is preferably 4 to 6 at 20° C. from the viewpoint of dyeability and stability of the basic dye. If the pH is less than 4, there is a risk that the dyeability will be reduced. If the pH exceeds 6, the stability of the basic dye may decrease.

The pH of the hair dye composition in the present invention at 20°C is determined by adjusting the pH of the hair dye composition prepared by a conventional method by leaving it at 20°C for one day, then adjusting the temperature using glass electrode hydrogen. It was measured using an ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

The hair dye composition used in the present invention is filled into various containers such as polyethylene containers, aluminum tube containers, aerosol containers, pouch containers, and jar containers, and stored until use.

EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited only to these Examples. In addition, in the evaluation test shown in this specification, it was conducted while variously changing the components and content contained in the hair dye composition. All units indicating the content of each component are mass %, and were prepared by a conventional method.

<Precipitation of basic dye over time at low temperature>
In the evaluation test related to "precipitation of basic dye over time at low temperature" shown in this specification, a 140 g sample bottle (Food 140: After filling 120g into a glass container (manufactured by Glass Co., Ltd.), it was stored at 5°C, and the presence or absence of precipitation of basic dye was examined using an optical microscope (model: Digital Microscope VHX-6000, manufactured by Keyence Corporation) at a magnification of 1000. It was visually confirmed under magnification, and the precipitation of the basic dye over time at low temperature was evaluated as shown below.

<Evaluation criteria for basic dye precipitation over time at low temperatures>
No precipitation of basic dye was observed even after more than 3 months had passed under 5:5°C conditions.
Precipitation of the basic dye was confirmed in less than 3 months under 4:5°C conditions.
Precipitation of the basic dye was confirmed in less than 2 months under 3:5°C conditions.
Precipitation of the basic dye was confirmed in less than one month under the conditions of 2:5°C.
Precipitation of the basic dye was confirmed in less than 14 days under 1:5°C conditions.

<Dyeability>
In the evaluation test related to "dyeability" shown in this specification, a hair dye prepared by a conventional method was applied to 1 g of 100% yak hair (manufactured by Beurax Co., Ltd.) wetted with 1 g of 35°C warm water. 0.3 g of the composition was applied and left to stand at 25° C. for 5 minutes, then rinsed with 35° C. warm water for 1 minute and dried using a hair dryer. This hair dyeing operation was repeated 7 times, and the dyeability was evaluated by 10 panelists according to the evaluation criteria below, and the total score was evaluated as the evaluation result.

<Evaluation criteria for stainability>
Stained dark brown: 3 points Stained slightly dark brown: 2 points Stained slightly light brown: 1 point Stained light brown: 0 points

<Stainability evaluation results>
5: 25 points to 30 points 4: 20 points to 24 points 3: 15 points to 19 points 2: 10 points to 14 points 1: 0 points to 9 points

<Volume feeling of hair after cumulative hair dyeing>
In the evaluation test related to the "voluminous feel of hair after cumulative hair dyeing" shown in this specification, 25 g of a hair dye composition prepared by a conventional method was applied to a wig with warm water at 35°C. (100% black human hair, manufactured by Beaulux, model number: Queen Cut No. 775N), leave it for 5 minutes at 25℃, rinse with warm water at 35℃ for 1 minute, and dry with a hair dryer. I let it happen. This hair dyeing operation was repeated 7 times, and the volume of the hair after cumulative dyeing was evaluated by 10 panelists according to the following evaluation criteria, and the total score was evaluated as the evaluation result.

<Evaluation criteria for hair volume after cumulative hair dyeing>
There is a sense of volume: 3 points Some sense of volume: 2 points Not much sense of volume: 1 point No sense of volume: 0 points

<Evaluation results of hair volume after cumulative hair dyeing>
5: 25 points to 30 points 4: 20 points to 24 points 3: 15 points to 19 points 2: 10 points to 14 points 1: 0 points to 9 points

<Smoothness of hair after cumulative hair dyeing>
In the evaluation test related to "smoothness of hair after cumulative hair dyeing" shown in this specification, wigs were coated with 25 g of a hair dye composition prepared in a conventional manner with warm water at 35°C. (100% black human hair, manufactured by Beaulux, model number: Queen Cut No. 775N), leave it for 5 minutes at 25℃, rinse with warm water at 35℃ for 1 minute, and dry with a hair dryer. I let it happen. This hair dyeing operation was repeated 7 times, and the smoothness of the hair after cumulative dyeing was evaluated by 10 panelists according to the evaluation criteria below, and the total score was evaluated as the evaluation result.

<Evaluation criteria for hair smoothness after cumulative hair dyeing>
Smooth: 3 points Somewhat smooth: 2 points Not very smooth: 1 point Not smooth: 0 points

<Evaluation results of hair smoothness after cumulative hair dyeing>
5: 25 points to 30 points 4: 20 points to 24 points 3: 15 points to 19 points 2: 10 points to 14 points 1: 0 points to 9 points

In Examples 1 to 6 in Table 1, even if the type and content of the component (A) were changed, compared to Comparative Examples 1 to 5, the results showed that the hair after cumulative dyeing was better. Results showing a sense of volume and smoothness were obtained.

In Examples 7 to 13 in Table 2, even if the type and content of the component (B) were changed, compared to Comparative Examples 6 to 10, the results showed that the hair after cumulative dyeing was better. Results showing a sense of volume and smoothness were obtained.

In Examples 14 to 18 in Table 3, even if the type and content of the component (C) were changed, compared to Comparative Examples 11 to 15, the results showed that the hair after cumulative dyeing was better. Results showing a sense of volume and smoothness were obtained.

In Examples 19 to 23 in Table 4, even if the type and content of the component (D) were changed, the basic dye changes over time at low temperatures compared to Comparative Examples 16 to 19. Results were obtained that showed good dyeability without precipitation, as well as volume and smoothness of the hair after cumulative hair dyeing.

In Example 24 and Example 25 of Table 5, when the content of the cationized polymer was 0.1% or less, compared to Comparative Example 20 and Comparative Example 21, the hair volume after cumulative hair dyeing was better. The results showed the texture and smoothness.

Examples of formulations of hair dye compositions are shown below. The following hair dye compositions showed no precipitation of basic dye over time at low temperatures, good dyeability, and voluminous and smooth hair after cumulative hair dyeing.

<Prescription example>
Content (mass%)
Methylpolysiloxane (10cSt/25℃) 5.00%
Liquid paraffin (70cSt/40℃) 2.50%
Stearyltrimethylammonium chloride 1.80%
Ethylene glycol 5.00%
1,3-butylene glycol 3.00%
Basic blue 75 0.01%
Basic red 51 0.01%
Basic tea 16 0.10%
Cetyl alcohol 5.00%
Citric acid 0.02%
Sodium citrate 0.15%
Methylparaben 0.20%
Guar hydroxypropyltrimonium chloride 0.10%
Ethanol 0.60%
Royal jelly extract 0.10%
Camellia flower extract 0.10%
Fucus extract 0.10%
Jojoba seed oil 0.10%
Fragrance 0.30%
Water 75.81%
Total 100.00%

The present invention provides a hair dye composition that does not cause precipitation of basic dye over time at low temperatures, has excellent dyeing properties, and provides volume and smoothness to hair after cumulative hair dyeing. can.

Claims (1)

A hair dye composition used for dyeing hair, containing a basic dye,
(A) Methylpolysiloxane with a viscosity of 5 to 100 cSt at 25°C (B) Liquid paraffin
(C) contains one or more types selected from stearyltrimethylammonium chloride and behenyltrimethylammonium chloride (D) contains a dihydric alcohol having 2 to 6 carbon atoms, and the content of the component (A) is 3 to 7% by mass; , the content of the component (B) is 1 to 5% by mass, the content of the component (C) is 1 to 3% by mass, and the content of the component (D) is 5 to 10% by mass. A hair dye composition characterized in that the content of the cationic polymer is 0.1% by mass or less.