KR102529025B1 - Hair conditioning composition - Google Patents

Abstract

The present invention relates to a leave-on type non-aqueous hair conditioning composition having an effect of protecting hair damaged by dyeing while having a hair conditioning effect.

Description

Hair conditioning composition {Hair conditioning composition}

The present invention relates to hair conditioning compositions.

In general, hair dyes for dyeing keratin fibers are classified into temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes according to the durability of the hair dyeing effect, and the dyeing principle of each hair dye is very different.

Temporary hair dye uses tar colorant, dyes hair by adsorbing nonionic, cationic and/or anionic dye to the surface of the hair, and shows temporary dyeing effect because the dye is completely washed by 1-2 times of shampoo washing. . Permanent hair dye is also named oxidative condensation type hair dye, and generally consists of a first agent containing a dye precursor represented by an aromatic amino compound such as paraphenylenediamine and an alkalizing agent, and a second agent containing hydrogen peroxide as an oxidizing agent. . In the case of such an oxidative condensation type hair dye, when a mixed solution of the first agent and the second agent is applied to the actual hair, the dye precursor is oxidized and condensed inside the hair by the oxidizing agent after the dye precursor penetrates into the hair to synthesize the dye. The principle of color development is used. When dye molecules are condensed inside the hair, a high molecular weight dye is formed, and due to its molecular size, it is trapped inside the hair, so it has high hair dyeing power and good color durability. The semi-permanent hair dye uses the same color development principle as the permanent hair dye, but adjusts the type and content of the alkali agent and the oxidizing agent, so it has a lower dyeing durability than the permanent hair dye, but has a feature of reducing hair damage.

However, dyes or dye precursors used in currently commercially available temporary hair dyes, semi-permanent hair dyes, and permanent hair dyes have water-soluble properties. Therefore, a phenomenon in which the color is discolored or faded occurs because the dye is dissolved in water and eluted out of the hair by washing such as shampoo.

However, hair dyes that express color by oxidative condensation have a characteristic in that the molecular size of the dye generated inside the hair increases and is trapped inside the hair so that the dye does not elute to the outside. However, in reality, physical damage such as detachment of the cuticle layer on the surface of the hair may weaken the hair's resistance to the outside and reduce the ability to form a barrier against the outflow of internal substances. In addition, chemical damage accompanied by chemical treatments such as perm, bleaching, and dyeing breaks down the dense protein structure inside the hair, destroys the filament structure constituting the hair, and causes pores inside the hair to be damaged by moisture introduced from the outside. It causes a phenomenon in which the migration of the dye is possible. Therefore, discoloration and discoloration of permanent hair dye due to physical and chemical damage often occur in practice.

As a conventional post-processing technique for sustaining hair dyeing, there is a technique for increasing the durability of dyeing by using the physiological properties of hair or by applying a temporary hydrophobic material externally.

Patent Document 1 discloses a shampoo composition having an acidic pH that improves the elution of dye inside the hair to the outside by using a phenomenon in which the outer cuticle layer of the hair converges when the pH of the hair is lowered. However, the shampoo composition cannot fundamentally solve the phenomenon that the dye inside the hair is eluted to the outside due to the aqueous base and a large amount of anionic surfactant, and the effect can only be expected during the act of washing the hair, so the effect is can only be limited

On the other hand, as a method for hydrophobizing the hair surface, silicone derivatives are generally used, but only temporary effects can only be expected due to lack of resistance by detergents.

1. Patent Publication No. 10-0507612

The present invention relates to a leave-on type non-aqueous hair conditioning composition having an effect of protecting hair damaged by dyeing while having a hair conditioning effect.

In the present invention, a water-insoluble acrylic polymer,

silicone elastomer,

cationic polysiloxanes and

A leave-on type non-aqueous hair conditioner composition containing a lower alcohol having 6 or less carbon atoms is provided.

The hair conditioning composition according to the present invention has an effect of protecting hair damaged by dyeing while having a hair conditioning effect.

The conditioning composition adsorbs a hydrophobic material having a lasting power that is not easily washed by hair washing to the surface of the hair, and has a quality of use that minimizes hair stickiness caused by the adsorbed ingredient. In addition, it is possible to reduce a phenomenon in which dyes inside or outside the hair are eluted or separated from the outside of the hair by moisture during shampooing, so that the color of dyed hair can ultimately be maintained.

The present invention is a water-insoluble acrylic polymer,

silicone elastomer,

cationic polysiloxanes and

It relates to a leave-on type non-aqueous hair conditioner composition containing a lower alcohol having 6 or less carbon atoms.

Hereinafter, the leave-on type non-aqueous hair conditioner composition according to the present invention will be described in detail.

In the present invention, the conditioning composition makes the hair more manageable, such as making wet hair easy to comb and drying, reducing static electricity and preventing fluttering. In the present invention, in addition to the above effects, the dyeing durability of dyed hair can be improved.

These conditioning compositions are divided into a rinse type, which is a rinse type, and a leave-on type, which is not washed off after application, depending on the formulation. The conditioning composition of the present invention may be a leave-on type composition that is not washed off after application.

In addition, the conditioning composition is divided into an aqueous composition and a non-aqueous composition, and a non-aqueous hair conditioning composition may be used in the present invention.

Dyeing durability can be further improved by using the leave-on type non-aqueous hair conditioning composition.

The leave-on type non-aqueous hair conditioner composition of the present invention may include a water-insoluble acrylic polymer, a silicone elastomer, a cationic polysiloxane, and a lower alcohol having 6 or less carbon atoms.

In the present invention, the water-insoluble acrylic polymer can be strongly adsorbed to the hair, imparts hydrophobicity to the hair, and prevents detachment of dye components by washing such as shampoo, thereby improving the durability of dyeing.

The type of the water-insoluble acrylic polymer is not particularly limited, and may be a compound having a group capable of imparting hydrophobicity to the acrylic copolymer. For example, the water-insoluble acrylic polymer may be at least one selected from the group consisting of acrylate/stearyl methacrylate copolymer and polyquaternium-99 (INCI name). Preferably, it may be polyquaternium-99 having both hydrophobic and cationic properties.

Acrylate/stearyl methacrylate copolymer, a hydrophobic acrylic polymer, has a monomer structure having an alkyl side chain in the main chain of acrylate, and thereby is insoluble in water and has solubility in alcohol. The hydrophobic properties expressed by the repeated alkyl side chains can be temporarily adsorbed on the hair to hydrophobize the hair. In addition, Polyquaternium-99 has a repeating unit having a cationic amine group as shown in Chemical Formula 1 below. The surface of hair damaged by dyeing has higher chargeability compared to healthy hair due to exposure of some of the amino acids, and stronger bonding than simple adsorption is possible because ionic bonding is possible. In particular, since polyquaternium-99 has an alkyl group and a cationic repeating unit at the same time, more durable hydrophobicity can be imparted to hair.

Therefore, when the conditioning composition according to the present invention is applied to the hair, a certain amount remains to impart hydrophobicity to the hair because it is not easily desorbed by shampoo due to strong adsorption to the hair and hydrophobic properties.

In the following [Formula 1], N of R ₂ may be an integer of 4 to 22.

[Formula 1]

The content of the cationic acrylic polymer may be 0.1 to 20.0% by weight, preferably 0.5 to 10.0% by weight, based on the total weight (100% by weight) of the composition. If the content is less than 0.1% by weight, it is not possible to impart durable hydrophobicity to the hair surface, and if it exceeds 20.0% by weight, there is a concern that the performance as a hair conditioning composition cannot be expressed by causing stickiness of the hair.

In the present invention, the silicone elastomer may be used to alleviate the stickiness of the composition.

The above-described water-insoluble acrylic polymer can form a hydrophobic film on hair, but there is a concern that stickiness may occur on the surface of the hair due to the inherent characteristics of the polymer having an oil-soluble side chain. Since a phenomenon such as hair sticking together occurs due to the stickiness, this adversely affects the emotional quality of the composition for the purpose of conditioning hair.

In the present invention, in order to solve the above problems, a silicone elastomer may be used. The silicone elastomer provides a feeling of use that is not sticky to hair due to its unique three-dimensional structure, and can reduce stickiness, which is a disadvantage of water-insoluble acrylic polymers. In addition, it is possible to improve the hydrophobicity of the hair together with the hydrophobic film by the water-insoluble acrylic polymer, and further improve the durability of the hydrophobic film that is durable on the hair.

The type of the silicone elastomer is not particularly limited, and may be a compound having a molecular structure in which a high branch having a silicone polymer as a main chain of a vinyl group is crosslinked, for example, dimethicone/vinyldimethicone crosspolymer, dimethicone / It may be at least one selected from the group consisting of phenylvinyldimethicone crosspolymer, vinyldimethicone/lauryldimethicone crosspolymer, and laurylpolydimethylsiloxyethyldimethicone/bis-vinyldimethicone crosspolymer, preferably Preferably, it may be dimethicone/vinyldimethicone crosspolymer.

The content of the silicone elastomer may be 0.1 to 10.0% by weight, preferably 0.2 to 5.0% by weight, based on the total weight (100% by weight) of the composition. If the content of the silicone elastomer is less than 0.1% by weight, it is impossible to alleviate the phenomenon that the hair is sticky and stick to each other due to the water-insoluble acrylic polymer, and if it exceeds 10.0% by weight, the water-insoluble acrylic polymer and the cationic polysiloxane to be described later cannot be alleviated. There is a concern that it may interfere with the formation of a hydrophobic film on the hair by inhibiting the miraculous hair adsorption.

In the present invention, the cationic polysiloxane is a phenomenon in which a water-insoluble acrylic polymer applied to impart hydrophobicity to hair and increase the durability of the hydrophobicity and a silicone elastomer applied to relieve stickiness and improve hydrophobicity are independently separated from the hair surface and coated. can be used to reduce

The cationic group in the structure of the cationic polysiloxane is adsorbed to the anionically charged part of the hair through an ionic bond, and the siloxane group of the cationic polysiloxane can form a hydrophobic bond with the alkyl group of the silicone elastomer and the water-insoluble acrylic polymer. there is. Therefore, the cationic polysiloxane can significantly improve the durability of hydrophobization of the hair surface of the conditioning composition of the present invention.

In particular, cationic polysiloxanes having cationic properties tend to be more adsorbed on the surface of damaged hair than polysiloxanes without polar groups because they can form ionic bonds to the anionically charged parts of damaged hair surfaces.

The type of the cationic polysiloxane is not particularly limited, and may have a structure in which a polymer main chain is composed of repeating units of SiO ₂ and a side chain has a cationic amine group. For example, amodimethicone, trimethylsiloxyamodimethicone, amodimethicone hydroxystearate, amodimethicone/silsesquioxane copolymer, bis(C13-15 alkoxy)hydroxybutamido It may be at least one selected from the group consisting of amidomethicone, bis(C13-15alkoxy)sebum-amodimethicone, diphenyl amodimethicone and sebum-amodimethicone, preferably bis(C13- 15 alkoxy) sebum-amodimethicone.

The content of the cationic polysiloxane may be 0.1 to 20% by weight, preferably 0.5 to 10.0% by weight, based on the total weight (100% by weight) of the composition. If the content of cationic polysiloxane is less than 0.1% by weight, there is a concern that the durability of hair hydrophobicity may be reduced, and if it exceeds 20.0% by weight, the formation of a hydrophobic film on the hair due to a competitive reaction of ionic bonds between the water-insoluble acrylic polymer and the hair surface. There is a risk of obstruction.

Also, in the present invention, a lower alcohol having 6 or less carbon atoms can be used as a solvent. Water-insoluble acrylic polymers have low direct solubility with silicone oil. Therefore, a lower alcohol having 6 or less carbon atoms may be used as a solvent to prepare the conditioning composition.

The type of lower alcohol having 6 or less carbon atoms is not particularly limited, and may be, for example, at least one selected from the group consisting of ethanol, isopropyl alcohol, n-butyl alcohol and hexyl alcohol, preferably ethanol.

The content of the lower alcohol having 6 or less carbon atoms may be 0.1 to 40% by weight, preferably 1 to 10.0% by weight, based on the total weight (100% by weight) of the composition. The solubility of the water-insoluble acrylic polymer is excellent within the above content range.

In the present invention, in addition to the above components, components such as silicone derivatives, ester oils, or natural oils may be used as necessary. In addition to the above components, the composition of the present invention may include various cosmetic additives other than water-soluble components for hair conditioning effect and texture control of the composition.

According to an embodiment of the present invention, the conditioning composition of the present invention has a very excellent dyeing durability and color change prevention effect compared to the comparative example, and an excellent dyeing durability effect compared to a composition composed of conventional silicone oil or a mixture of oils. indicates

Hereinafter, examples will be described in detail to aid understanding of the present invention. However, the embodiments according to the present invention can be modified in many different forms, and the scope of the present invention should not be construed as being limited to the following examples.

Example

Example 1 to 2 and comparative example 1 to 4

Hair conditioning compositions were prepared by varying the composition ratio (wt%) according to the compositions in Tables 1 and 2 below.

The hair conditioning composition was prepared by sufficiently stirring the oil components at room temperature.

Comparative Example 1 is a general non-aqueous hair coating essence composition for hair protection consisting only of silicone oil, hydrocarbon oil, ester-based synthetic oil, and natural oil components. Further, Comparative Examples 2 to 4 are non-aqueous compositions each containing a water-insoluble acrylic polymer, a silicone elastomer, and a cationic polysiloxane.

Ingredient name (% by weight) comparative example Example One 2 3 4 One 2 cyclomethicone 62.5 57.5 62.0 60.5 56.0 52.5 dimethicone 25.0 25.0 25.0 25.0 25.0 25.0 Dimethicone 10.0 10.0 10.0 10.0 10.0 10.0 macadamia oil 1.0 1.0 1.0 1.0 1.0 1.0 alkyl benzoate 1.5 1.5 1.5 1.5 1.5 1.5 Water-insoluble acrylate copolymer (Polyquaternium-99) - 2.0 - - 2.0 3.0 ethanol - 3.0 - - 3.0 4.0 Dimethicone/Vinyl Dimethicone Crosspolymer - - 0.5 - 0.5 2.0 Cationic polysiloxane (bis(C13-15 alkoxy)sebum-amidimethicone) - - - 2.0 1.0 1.0 total amount 100.0 100.0 100.0 100.0 100.0 100.0

Experimental example 1. hair color change measurement

After the normal hair tress was made into a bundle by tying the hair root with a weight of 1 g, the hair tress was initialized and washed to make the surface condition of the hair constant. For cleaning, wet with running water at about 30°C for 10 seconds, and then SLES 1% aq. The solution was applied with 1/10 weight of the tress weight, washed by hand for 30 seconds, washed with running water at 30 ° C for 30 seconds, dried with a hair dryer for 1 minute, and the above treatment sequence was repeated 3 times.

The hair tress initialized by the above treatment method was dyed using a commercially available two-component oxidative condensation permanent hair dye to match the usage and capacity of the hair dye.

After that, after applying the composition of Example and Comparative Example in the weight of 1/10 of the weight of the dyed hair tresses, leaving it for 10 hours, SLES 15% aq. Solution was washed for 3 minutes and completely dried, and this process was repeated a total of 5 times.

Based on the color before treatment, the color change of the hair was measured using a spectrophotometer for each treatment process to quantify the color difference, and the Delta E value, which is a color deviation, was calculated and evaluated for comparison.

The color of the hair tress immediately after the first dyeing was used as a control, and the color difference between the sample treated by the above experimental method and the control was calculated using Equation 1 below, and the results are shown in Table 2 below.

[Equation 1]

△E: color difference

L: light and dark, the higher the value, the brighter (0 - 100)

a: Green to Red, with a positive value, red appears, and with a negative value, green appears. The higher the absolute value, the stronger the color.

b: Blue to Yellow, with a positive value, yellow is expressed, and with a negative value, blue is expressed. The higher the absolute value, the stronger the life.

control group 1 time treatment 2 times treatment 3 times treatment 4 times treatment 5 times treatment Comparative Example 1 Control 7.2 9.2 11.6 13.3 15.8 Comparative Example 1 Control 2.1 4.2 6.1 6.9 8.4 Comparative Example 3 Control 7.4 9.1 12.0 13.7 15.3 Comparative Example 4 Control 6.9 8.9 11.6 13.6 15.1 Example 1 Control 1.7 4.0 5.5 6.8 7.7 Example 2 Control 1.5 2.9 3.5 4.8 5.7

As shown in the table above, the composition of Comparative Example 1, which does not contain water-insoluble acrylic polymer, silicone elastomer, cationic polysiloxane, and ethanol, has a relatively large change in ΔE by repeated washing with an ionic surfactant, As a result, the color of the hair showed a lot of difference compared to the control group.

In Comparative Example 2, the durability of color was improved by the water-insoluble acrylic polymer. In Comparative Example 3, silicone elastomer was used, but the change in ΔE was similar to that of Comparative Example 1, and it could be confirmed that the durability of dyeing could not be improved with only the silicone elastomer. Comparative Example 4 used cationic polysiloxane, but, like Comparative Example 3, the durability of dyeing could not be improved with cationic polysiloxane.

In the case of using the compositions of Examples 1 and 2, it can be confirmed that the dyed color of the hair is significantly improved compared to the comparative example even by repeated washing. Examples 1 and 2 are compositions containing a water-insoluble acrylic polymer, silicone elastomer, amodimethicone, and ethanol at the same time, and compared to Comparative Examples 1 to 4, dyeing durability according to shampoo washing with an anionic surfactant can be improved. can confirm that it can. In addition, in the comparison between Example 1 and Example 2, it can be confirmed that the effect of improving the dyeing durability according to the hydrophobization of the hair surface of the water-insoluble acrylic polymer is further improved by the addition of cationic polysiloxane.

Experimental example 2. Measurement of hair stickiness

In order to evaluate the stickiness of the compositions prepared in Examples and Comparative Examples, the following experimental process was performed to determine the stickiness of hair through a sensory test.

In the evaluation method, 3 g of the composition prepared in the above Examples and Comparative Examples was applied to the evaluator's hair in the hands of evaluators, the degree of stickiness of the hair was recorded on a 5-point scale, and the scores of 20 evaluators were summed up. and the average value was calculated. A lower score means more stickiness, and a higher score means less stickiness.

The results are shown in Table 3 below.

<Criteria for each item>

1 point: very bad

2 points: bad

3 points: average

4 points: good

5 points: very good

Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Example 1 Example 2 stickiness 4.1 2.4 4.3 4.0 4.4 4.2

As shown in the table above, in Comparative Example 2, in which only the water-insoluble acrylic polymer was applied, many evaluators felt sticky on the hair surface, and in Comparative Example 1, Comparative Example 3, and Comparative Example 4, in which no water-insoluble acrylic polymer was added, relatively Non-sticky evaluation results can be confirmed.

In addition, it can be seen that the stickiness of Examples 1 and 2 to which the water-insoluble acrylic polymer and the silicone elastomer were simultaneously applied was reduced compared to Comparative Example 2. The composition of Example showed equal or better results without stickiness even when compared to Comparative Example 1, which is a general water-insoluble hair conditioning composition.

Claims (7)

water-insoluble acrylic polymer,
silicone elastomer,
cationic polysiloxanes and
Containing a lower alcohol having 6 or less carbon atoms,
A leave-on type non-aqueous hair conditioner composition for protecting hair damaged by dyeing or improving the elution and detachment of dye to the outside of hair by moisture during shampooing.
According to claim 1,
A leave-on type non-aqueous hair conditioner composition that improves the durability of dyed hair.
According to claim 1,
0.1 to 20% by weight of a water-insoluble acrylic polymer based on 100% by weight of the composition;
0.1 to 10.0% by weight of a silicone elastomer;
0.1 to 20% by weight of a cationic polysiloxane and
A leave-on type non-aqueous hair conditioner composition comprising 0.1 to 40% by weight of a lower alcohol having 6 or less carbon atoms.
According to claim 1,
A leave-on type non-aqueous hair conditioner composition wherein the water-insoluble acrylic polymer is at least one selected from the group consisting of acrylate/stearyl methacrylate copolymer and polyquaternium-99.
According to claim 1,
Silicone elastomers include dimethicone/vinyldimethicone crosspolymer, dimethicone/phenylvinyldimethicone crosspolymer, vinyldimethicone/lauryldimethicone crosspolymer and laurylpolydimethylsiloxyethyldimethicone/bis-vinyldimethicone. A leave-on type non-aqueous hair conditioner composition comprising at least one selected from the group consisting of cross-polymers.
According to claim 1,
Cationic polysiloxanes include amodimethicone, trimethylsiloxyamodimethicone, amodimethicone hydroxystearate, amodimethicone/silsesquioxane copolymer, bis(C13-15 alkoxy)hydroxybutamido A leave-on type non-aqueous hair conditioner composition comprising at least one selected from the group consisting of amidomethicone, bis(C13-15alkoxy)sebum-amodimethicone, diphenyl amodimethicone and sebum-amodimethicone .
According to claim 1,
A leave-on type non-aqueous hair conditioner composition wherein the lower alcohol having 6 or less carbon atoms is at least one selected from the group consisting of ethanol, isopropyl alcohol, n-butyl alcohol and hexyl alcohol.