JP6941895B1 - Cosmetics that visualize hair damage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and clearly and quickly visually determine a damaged part of the whole or a part by the shade of dyeing without cutting or damaging the hair, which is excellent in operability, and the dyed part is treated with oxidative hair dyeing. To provide cosmetics that visualize hair damage areas that do not affect color tone. SOLUTION: (A) basic purple 2 is 0.02 to 0.30% by weight, (B) N-acylamino acid salts are 4.0 to 18.0% by weight, and (C) amphoteric surfactant is 1. Contains 0.1% by weight or more and 0.1 to 2.5% by weight of (D) cationic polymer. [Selection diagram] None

Description

The present invention relates to, for example, a cosmetic used as a hair wash to visualize a damaged portion of hair.

In recent years, due to the diversification of hairstyles, hair is damaged not only by daily damage such as UV irradiation, heat of a dryer, and friction due to combing, but also by chemical treatment such as permanent wave, straightening, oxidative hair dyeing, and decolorization. The degree of hair is different between the root and the tip of the hair. In the field of hairdressing and cosmetology, in order to gain the trust of customers, it is important to accurately determine the damaged part of the hair and prevent further damage. However, most of the judgments of the damaged part of the hair by the beauty technician are made by the sensory judgment based on the visual sense and the tactile sensation, and the judgment is largely different depending on the beauty technician.

Japanese Unexamined Patent Publication No. 8-101193 Special table 2013-526711 Patent No. 6129382

In this regard, Patent Document 1 describes that the degree of hair damage can be easily and quickly measured by immersing the hair in an aqueous solution having a pH of 1 to 5 containing at least one anionic dye and then measuring the change in the color concentration of the solution. A method for measuring hair condition to be visually measured is described. However, this method has a problem that the hair damage site cannot be clearly determined.

Further, Patent Document 2 describes a method for detecting and showing hair damage by eluting a protein fragment from hair using an aqueous solution without changing the keratin protein structure of hair. However, this method has a problem that it is necessary to cut the hair in order to identify the damaged part of the hair.

Further, Patent Document 3 describes a method of measuring the degree of hair damage by optically supplementing the amount of cuticle peeled off by a fine particle visualization system. However, this method is not suitable for a beautician or his / her customer to measure easily and quickly because it requires expensive equipment and a clean room.

The present invention solves the above-mentioned conventional problems, and can easily and clearly and quickly visually determine the damaged part of the whole or part by the shade of dyeing without cutting or damaging the hair, and is excellent in operability. It is an object of the present invention to provide a cosmetic that visualizes a damaged part of hair in which the dyed part does not affect the color tone of the oxidative hair dyeing treatment.

In order to achieve the above object, the cosmetic for visualizing the damaged part of the hair according to the present invention contains (A) basic purple 2 in an amount of 0.02 to 0.30% by weight and (B) N-acylamino acid salts. 4.0 to 18.0 wt%, (C) an amphoteric surfactant 1.0% by weight or more, see 0.1 to 2.5 wt% including the (D) a cationic polymer, (B) and ( The total compounding ratio of C) is 5.0 to 30.0% by weight (claim 1).

In the present invention, it is possible to easily and clearly and quickly visually determine the damaged part of the whole or part by the shade of dyeing without cutting or damaging the hair, and it is excellent in operability, and the dyed part is treated with oxidative hair dyeing. A cosmetic that visualizes the damaged part of the hair that does not affect the color tone of the hair can be obtained.

The cosmetic for visualizing the damaged part of the hair of the present invention (hereinafter, simply referred to as “cosmetic”) contains basic purple 2 as the component (A) for the purpose of visualizing the damaged part of the hair. This component (A) is dyed on the damaged part of the hair, whereby visualization of the damaged part of the hair can be realized, and moreover, it does not affect the color tone of the subsequent oxidative hair dyeing treatment. Better than other dyes. Further, in order to surely obtain such an effect, the blending ratio of the component (A) is preferably 0.02 to 0.30% by weight, particularly preferably 0.05 to 0.10% by weight. ..

If the blending ratio of the component (A) is less than 0.02% by weight, it is not possible to clearly judge the damaged part visually, and if it exceeds 0.30% by weight, the dyed part is the color tone of the oxidative hair dyeing treatment. Affects. Further, it is preferable that the cosmetic of the present invention does not contain a dye other than basic purple 2 as the component (A), but the effect of not affecting the visualization of the damaged part of the hair and the color tone of the oxidative hair dyeing treatment. It may be included in a range in which the above can be obtained (a range in which no hindrance occurs), and it is preferable that the amount is at least less than that of the component (A).

Specific examples of the N-acylamino acid salts used in the present invention as the component (B) include cocoyl glycine K, cocoyl glutamic acid K, cocoyl glutamic acid Na, cocoyl glutamic acid TEA, cocoyl sarcosin Na, cocoyl methyl taurine Na, and stearoyl. Na glutamate, stearoyl methyl taurine Na, palm amino acid glutamate Na, palmitoyl sarcosin Na, myristol glutamate K, myristol glutamate Na, lauroyl aspartate Na, lauroyl glutamate TEA, lauroyl methyl alanine Na, lauroyl methyl taurine Na and the like can be mentioned. At least one or a combination of two or more can be used, and TEA lauroyl glutamate is particularly preferable.

The blending ratio of the component (B) is preferably 4.0 to 18.0% by weight, particularly preferably 6.0 to 12.0% by weight. If the blending ratio of the component (B) is less than 4.0% by weight, dyeing starts immediately after application and uneven coating occurs, and if it exceeds 18.0% by weight, the dyeing becomes thin and the damaged part is visually observed. I can't judge clearly.

The amphoteric surfactant as the component (C) used in the present invention is not particularly limited as long as it is usually used in cosmetics. Nium betaine type amphoteric surfactant, carboxybetaine type amphoteric surfactant, sulfobetaine type amphoteric surfactant, hydroxysulfobetaine type amphoteric surfactant, amide sulfobetaine type amphoteric surfactant, phosphobetaine type amphoteric surfactant, Aminocarboxylate-type amphoteric surfactants, amidoamine-type amphoteric surfactants and the like can be mentioned, and at least one or a combination of two or more can be used, and lauramidopropyl betaine is particularly preferable.

The blending ratio of the component (C) is preferably 1.0% by weight or more, particularly preferably 10.0 to 15.0% by weight. If the compounding ratio of the component (C) is less than 1.0% by weight, the operability at the time of application and washing with water deteriorates.

Specific examples of the cationic polymer as the component (D) used in the present invention include cationized cellulose, cationized guagam, cationized locust bean gum, caesalpinia spinosahydroxytrimonium chloride, and colohahydroxypropyltrimonium. Chloride, cationized starch and the like can be mentioned, and at least one kind or a combination of two or more kinds can be used, and cationized cellulose is particularly preferable.

The blending ratio of the component (D) is preferably 0.1 to 2.5% by weight, particularly preferably 0.5 to 2.0% by weight. If the blending ratio of the component (D) is less than 0.1% by weight, the operability during coating and washing with water deteriorates, and if it exceeds 2.5% by weight, the operability during washing with water deteriorates.

The operability of the cosmetic of the present invention at the time of application and washing with water has an effect of being improved by the interaction of the component (B), the component (C) and the component (D).

The total compounding ratio of the component (B) and the component (C) used in the present invention is preferably 5.0 to 30.0% by weight, particularly preferably 16.0 to 22.0% by weight. If the total blending ratio of the component (B) and the component (C) is less than 5.0% by weight, the feeling of use is poor and the dyeing becomes uneven, and if it exceeds 30.0% by weight, bubbles generated during dyeing cause the dyeing to be uneven. Dyeing is hindered.

The cosmetic of this example is used as a liquid hair wash (shampoo composition) and contains water as a solvent, but as other components, the cosmetic of the present invention has the effect and operability of the present invention. Animal and vegetable oils, amino acids, high molecular weight compounds, UV absorbers, plant extracts, polypeptides, proteins, moisturizers, organic solvents, silicones, cationic surfactants, anionic surfactants, nonionic surfactants to the extent that they are not impaired. Agents, amphoteric surfactants, chelating agents, antioxidants, pH adjusters, preservatives, masking agents, coloring amounts and the like, which are generally used in cosmetics, may be appropriately blended.

(how to use)
The cosmetic of the present invention is used in the steps of applying, whipping, and then rinsing, and the damaged portion can be clearly determined by the shade of dyeing. When used on hair or white hair with a brightness of 14 levels or higher on the JHCA level scale manufactured by the NPO Japan Hair Color Association, it is particularly useful because the damaged portion of the hair can be visualized very clearly.

Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto. Unless otherwise specified, the blending amount is expressed in% by weight.

<Examples 1 to 6>
As cosmetics corresponding to the examples of the present invention, cosmetics having the compositions shown in Table 1 below were prepared.

<Comparative Examples 1 to 12>
Further, as a cosmetic corresponding to the comparative example, a cosmetic having the composition shown in Table 2 below was prepared.

<Creation of hair bundle for evaluation>
(I-1) Damaged hair bundle Tamaris powder bleach (manufactured by Tamari Kagaku Co., Ltd.) and Tamaris Creative Ferrie Neocolor Oxide 6% (manufactured by Tamari Kagaku Co., Ltd.) mixed with a bleaching agent at a ratio of 1: 2 (mass ratio). It was applied to a bundle (“1 g, 10 cm” manufactured by Staffs Co., Ltd.), left at 30 ° C. for 30 minutes, washed with water, and dried. This step was performed twice to obtain (i-1) damaged hair bundles.
(I-2) High-damaged hair bundle Siscure Decorua C-3.0 (manufactured by Tamari Kagaku Co., Ltd.) is applied to (i-1) damaged hair bundle, left at 30 ° C. for 10 minutes, and washed with water. Then, Syscure Decorua 2C-BR 6% (manufactured by Tamari Kagaku Kagaku Co., Ltd.) was applied, left at 30 ° C. for 10 minutes, washed with water, and dried. This hair bundle was designated as (i-2) high-damage hair bundle.

<Creation of evaluation wig>
A bleaching agent that is a mixture of Tamaris powder bleach (manufactured by Tamari Kagaku Co., Ltd.) and Tamaris Creative Ferrie Neocolor Oxide 6% (manufactured by Tamari Kagaku Co., Ltd.) at a ratio of 1: 2 (mass ratio) is added to a wig (manufactured by Bulux Co., Ltd .: No. It was applied to .775N), left at 30 ° C. for 30 minutes, washed with water, and dried. This process was performed twice to obtain an evaluation wig.

<Visual evaluation of damaged parts>
For visual evaluation of hair damage, 0.2 g of the prepared cosmetic was applied to the hair bundles of (i-1) and (i-2) sufficiently moistened with water, left for 1 minute, washed with water, dried, and then dried. By visually confirming the difference in the dyeing of the hair bundles of (i-1) and (i-2), the evaluation was made in the following three stages.
◯: There is a difference in shade of color.
Δ: There is a slight difference in shade of color.
X: No difference in color shade is seen.

<Evaluation of operability>
The operability of the cosmetics was evaluated in the following three stages by a sensory evaluation when the evaluation wig was sufficiently wetted with water and 6 g of the prepared cosmetics were blended and whipped.
◯: Good spread during application, and the entire surface can be applied evenly.
Δ: I feel that the stretch during application is stuck, but the entire surface can be applied evenly.
X: The spread during application is poor, and the entire surface cannot be applied evenly.

<Evaluation of uneven dyeing during dyeing>
To evaluate uneven dyeing during dyeing, apply 0.2 g of the prepared cosmetic to the hair bundle of (i-2) sufficiently moistened with water, leave it for 30 seconds, apply it evenly with a brush for 1 minute, and wash it with water. Then, it was dried, and the uneven dyeing was visually confirmed, and the evaluation was made in the following three stages.
◯: Evenly dyed.
Δ: Slight uneven dyeing is seen.
×: Non-uniform dyeing.

<Effect on oxidative hair dyeing treatment>
The effect on the oxidative hair dyeing treatment is that 1 g of the prepared cosmetic is applied to the hair bundle of (i-2), left for 1 minute, washed with water, dried, and then Tamaris Creative Ferrie Neo CL12 (Tama Rikagaku Co., Ltd.) A colorant obtained by mixing (manufactured by the company) and Tamaris Creative Ferrie Neo Color Oxide 6% (manufactured by Tamari Kagaku Co., Ltd.) at a ratio of 1: 1 (mass ratio) is applied with a brush, left at 30 ° C for 30 minutes, washed with water, and dried. Tamaris Creative Ferrie Neo CL12 (manufactured by Tamari Kagaku Co., Ltd.) and Tamaris Creative Ferrie Neo Color Oxide 6% (Tamari Kagaku Co., Ltd.) (Manufactured) is a hair bundle mixed with 1: 1 (mass ratio), applied with a brush, left at 30 ° C. for 30 minutes, washed with water, and dried. By visual comparison, evaluation was made in the following three stages.
◯: The hair bundles of (i-3) and (i-4) have the same color tone.
Δ: The hair bundles of (i-3) and (i-4) have slightly different color tones.
X: The hair bundles of (i-3) and (i-4) have different color tones.

As is clear from the evaluation results in Table 1 above, the cosmetics prepared in Examples 1 to 6 according to the present invention are
(A) Ingredient: Basic purple 2 0.02 to 0.30% by weight
(B) Ingredient: TEA lauroyl glutamate 4.0 to 18.0% by weight
Component (C): Lauramide propyl betaine 1.0% by weight or more (D) Component: Cationic polymer 0.1 to 2.5% by weight
Because it is adjusted to the range of, it is possible to easily and clearly and quickly visually judge the damaged part of the whole or part by the shade of dyeing without cutting or damaging the hair, and it is excellent in operability and the dyed part. It can be seen that does not affect the color tone of the oxidative hair dyeing treatment.

Further, in the cosmetics of Examples 1 to 6, since the total blending ratio of the component (B) and the component (C) is adjusted in the range of 5.0 to 30.0% by weight, uneven dyeing occurs. It turns out that there is no such thing.

On the other hand, from the results in Table 2 above, the following is clear for Comparative Examples 1 to 12.

The cosmetic prepared in Comparative Example 1 contains a pigment of basic red 51 and a pigment other than the basic purple 2 which is the component (A). Therefore, after visualizing the damaged part, after visualizing the damaged part, It can be seen that it affects the color tone of the oxidative hair dyeing treatment.

The cosmetic prepared in Comparative Example 2 contains 0.01% by weight of basic purple 2 which is the component (A) and less than 0.02% by weight, so that the dyeing becomes lighter and it is visually observed. It can be seen that the damaged part cannot be clearly determined.

The cosmetic prepared in Comparative Example 3 contains 0.5% by weight of basic purple 2 which is the component (A) and exceeds 0.30% by weight. Therefore, after visualizing the damaged part, oxidative dyeing is performed. It can be seen that it affects the color tone of hair treatment.

In the cosmetic prepared in Comparative Example 4, the anionic surfactant is sodium lauryl sulfate, and an anionic surfactant other than the N-acylamino acid salts which is the component (B) is blended, so that the dyeing becomes lighter. It can be seen that it is not possible to clearly judge the damaged part visually.

The cosmetic prepared in Comparative Example 5 contains the component (B) lauroyl glutamic acid TEA (N-acylamino acid salts) in an amount of 3% by weight and less than 4.0% by weight, so that uneven dyeing occurs. Not only is it difficult to determine the damaged part, but it is also found that the elongation during application is poor.

The cosmetic prepared in Comparative Example 6 contains 19% by weight of lauroyl glutamic acid TEA (N-acylamino acid salts), which is a component (B), and exceeds 18.0% by weight, so that the dyeing becomes lighter. , It can be seen that it is not possible to clearly judge the damaged part visually.

Since the cosmetics prepared in Comparative Examples 7 and 8 contain 1.0% by weight or less of lauramidopropyl betaine (amphoteric tenside) as the component (C), the operability at the time of application and washing with water may be poor. I understand.

The cosmetic prepared in Comparative Example 9 has a content of the cationic polymer (D) of 0.04% by weight and less than 0.1% by weight, so that it feels stuck during the application and washing operations. It turns out that the operability is bad.

The cosmetic prepared in Comparative Example 10 contains a cationic polymer as a component (D) in an amount of 2.8% by weight, which exceeds 2.5% by weight. Turns out to be bad.

The cosmetic prepared in Comparative Example 11 had a total blending ratio of lauroyl glutamic acid TEA (N-acylamino acid salts) as a component (B) and lauramide propyl betaine (amphoteric tenside) as a component (C). Since it is 4% by weight and less than 5.0% by weight, it can be seen that the operability at the time of washing with water is poor.

The cosmetic prepared in Comparative Example 12 had a total compounding ratio of 31 weight by weight of the component (B) lauroyl glutamic acid TEA (N-acylamino acid salts) and the component (C) lauramide propyl betaine (amphoteric tenside). %, Which is more than 30.0% by weight, so that it can be seen that the foam generated during dyeing hinders dyeing and makes it impossible to visually determine the damaged part.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be variously modified and implemented without departing from the gist of the present invention.

Claims (1)

(A) 0.02 to 0.30% by weight of basic purple 2
(B) N-acylamino acid salts in an amount of 4.0 to 18.0% by weight,
(C) 1.0% by weight or more of amphoteric surfactant,
(D) 0.1 to 2.5% by weight of cationic polymer
Seen including,
A cosmetic that visualizes a damaged part of hair in which the total compounding ratio of (B) and (C) is 5.0 to 30.0% by weight.