KR102244464B1 - External compositions for hair comprising persimmon leaf extract - Google Patents

Abstract

The present invention relates to a composition for external application to hair for improving the condition of hair, which provides gloss and softness, and ensures absorbency and durability while allowing strong hair.

Description

Hair external preparation composition for improving hair condition containing persimmon leaf extract {EXTERNAL COMPOSITIONS FOR HAIR COMPRISING PERSIMMON LEAF EXTRACT}

The present invention relates to an external preparation applied to hair, and more specifically, to a composition for external application for hair containing a persimmon leaf extract that provides gloss and softness, and allows strong hair to be obtained, while ensuring water absorption.

Hair is made up of a protein called keratin, and hair protein is made up of 18 kinds of amino acids. In its composition, it is classified as a simple protein, a light protein. The epidermis of the skin is also a keratin protein, but it is distinguished by soft keratin because it is not as hard as hair or nails.

Looking at the hair in a cross section, it is composed of cuticle, cortex, and medulla. The epidermis functions to protect the cortex from external stimuli because flakes of nucleated cells overlap each other in a scale shape and wrap inside the hair. In addition, the chemical resistance is very strong, so it is not easily damaged.

The cortex is composed of keratinized cortical cells and cell-to-cell binding substances, and it is hydrophilic, so when exposed to external stimuli, cortical cells are easily eluted and the hair becomes porous and the physical strength is weakened. have.

Recently, the hair is damaged by various physical, chemical, and environmental factors such as frequent perm or dyeing, resulting in roughness and loss of shine, resulting in loss of softness and suppleness.In addition, the physical strength of the hair is weakened, such as easily breaking or splitting the ends. There was a problem.

In order to solve cosmetic problems such as gloss and softness of hair, continuous research has been conducted on detergents or cosmetics for improving the softness of hair during or after washing and recovering damaged hair. In particular, in order to protect hair, prevent damage, and impart conditioning effects to shampoos that have previously emphasized only cleaning functions, so-called conditioning shampoos have been developed and put into practical use, in which a conditioning agent is added in addition to the cleaning surfactant, which is the main ingredient. There is a trend of increasing use.

Korean Patent Laid-Open Publication No. 10-0316976 uses silicone compounds such as water-insoluble, nonvolatile dimethicone, cyclomethicone, amino silicone, trimethylsilyl amodimethicone, and derivatives thereof as a hair conditioning component.

On the other hand, in order to improve the physical strength, there have been attempts to infiltrate the protein into the hair (Korean Patent No. 0007392) or adsorption (Korea Patent No. 376538), but have only given a temporary effect.

The present invention was devised to overcome the problems of the prior art described above, while improving hair gloss, elasticity, thickness, and softness, while improving absorption and increasing the persistence of active ingredients contained in the hair, the effect and reliability of hair improvement It is an object of the present invention to provide a composition for external use of hair that can improve.

The present invention for solving the above problems, the persimmon leaf extract, TEA-N-acyl-L-glutamate, which crosslinks the cystine bonds lost by binding to the tannin of the persimmon leaf extract, and the tannin by determining the hardening and acidity of the hair. And TEA-N-acyl-L-glutamate and glucono deltalactone controlling the absorption of a wet elasticity agent.

Preferably, 50 to 70% by weight of purified water, 5 to 10% by weight of persimmon leaf extract, 3 to 5% by weight of TEA-N-acyl-L-glutamate, and 0.7 to 0.9% by weight of glucono deltalactone. It provides a composition for external use of hair for improving hair condition.
The wet elasticity agent is 0.1% by weight of amodimethicone, 0.15% by weight of cetrimonium chloride, 0.1% by weight of steatrimonium chloride, 0.3% by weight of hydrolyzed keratin, 0.2% by weight of silicon quaternium-18 %, glycerin 5.0% by weight, arginine 0.5% by weight, propylene glycol 0.1% by weight, PPG-12-PEG-50 lanolin 3.0% by weight, chitosan 2.5% by weight, and PEG-50 hydrogenated castor oil 3.0% by weight Contains.

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According to the present invention, it is possible to harden the hair and adjust the acidity, and in particular, it is possible to improve the absorption rate and durability in hair treatment. In addition, by containing and absorbing persimmon leaf extract and TEA-N-acyl-L-glutamate, there is an effect of increasing gloss, softness, elasticity, thickness, and strength of hair and improving retention.

1 is a graph schematically showing the indicators for hair strength and sensory evaluation according to an embodiment of the present invention.

All technical terms used in the present invention, unless otherwise defined, have the following definitions and correspond to the meaning as commonly understood by those of ordinary skill in the relevant fields of the present invention. In addition, although preferred methods or samples are described in the present specification, those similar or equivalent are included in the scope of the present invention.

The term'about' means 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or for a reference amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length. It means an amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length varying by 4, 3, 2 or 1%.

Throughout this specification, unless otherwise required by the context, the terms "comprise" and "comprising" include the steps or components presented, or groups of steps or components, but any other step or component, or It is to be understood that it implies that a step or group of components is not excluded.

The present invention basically provides a composition for external application for hair containing persimmon leaf extract, including persimmon leaf extract, TEA-N-acyl-L-glutamate monosubstituted salt, and glucono-δ-lactone.

The persimmon leaf extract as the natural extract contains tannin (Persimmon Tannin), and the tannin is an aromatic compound having a plurality of phenolic hydroxyl groups, and is understood as a mixture of several types of substances rather than being separated into a single substance as a crystal phase. have. In the case of tannins used in hair, its utility as a hair dyeing agent has been verified, but as a result of the experiment, it was found that it has the effect of giving strength to the hair and improving its thickness.

As an example for the preparation of the persimmon leaf extract for extracting the persimmon leaf tannin, a hot water extraction method may be applied. For example, it may be obtained by adding a small amount of distilled water to the dried pulverized persimmon leaves, heating it at a temperature of about 120 to 130°C for about 1 hour, and then concentrating under reduced pressure. However, the method of manufacturing the persimmon leaf extract is not limited to the above example. As another example, an extraction method in which glycerin and ethane are eluted using a solvent such as 1,3-butylene glycol may be applied.

This persimmon leaf extract is preferably 5 to 10% by weight based on the weight ratio of the total composition.

The N-acyl-L-glutamate monosubstituted salt is preferably TEA-N-acyl-L-glutamate, and can function as a type of surfactant synthesized from glutamic acid, and the cystine bond lost in the hair by mixing with the tannin component It performs the function of cross-linking (Disulfied Bond). By breaking the bond in the keratin existing in the hair, it penetrates the hair cortex layer through a reducing agent to form a new crosslink. In this process, a known function of the reducing agent in hair shaping may be applied, so the description will be omitted. do.

The TEA-N-acyl-L-glutamate is preferably 3 to 5% by weight of the total component.

In the composition of the present invention, glucono deltalactone (GDL) is basically understood as an expanding agent, but it was confirmed that when applied to hair, it functions as a medium adjusting agent. In particular, glucono deltalactone itself is not an acid, but when dissolved in water (purified water), it hydrolyzes and shows acidity, showing an advantageous effect in the penetration of active ingredients.

On the other hand, in the case of acid components such as malic acid or citric acid, they were used for hardening, but the hardening time was excessively rapid and the active ingredients hardened before penetrating into the hair, so that they did not properly exhibit their performance as external preparations. When glucono deltalactone is applied as in the present invention, the reactivity is relatively slow. This slow reactivity acts as an advantage of securing the penetration time of the active ingredient and can increase the margin of work in various processes such as hair treatment. However, when the content of glucono deltalactone is 2% or more, the curability may be increased, so that the effect is reduced by half, so it is preferably applied in the range of 0.7 to 0.9% by weight.

For the inclusion of the overall water-soluble component, the above compositions may be contained in purified water for the inclusion of the composition, and the ratio of purified water may be applied at 50 to 80% by weight, but this may be adjusted according to the weight ratio of other compositions.

In addition, it may further include amodimethicone, which means an amino group-containing silicone compound whose display name (INCI name) is amodimethicone. This amodimethicone can act in weak acidity and effectively removes the calcium ions accumulated in the hair. The amodimethicone may contain 1 to 30% by weight. However, it is preferably contained in an amount of 0.1 to 2% by weight, and if it is blended in excess of 5% by weight, a heavy texture or stickiness may be generated on the hair.

In addition, it is preferable to substitute a preservative such as phenoxyethanol or isothiazolinone-based compound to apply cetrimonium chloride, and the cetrimonium chloride may be applied in an amount of 0.01 to 3.0% by weight based on the total weight.

On the other hand, as a wetting elastic agent for increasing wetting and elasticity, polyquaternium-33, steatrimonium chloride (STAC), cetrimonium chloride, hydrolyzed keratin ), PEG-12 Dimethicone, hydroxypropyltrimonium Hydrolyzed silk, Silicon Quaternium-18, Propylene Glycol ), glycerin (Glycerin), arginine (Arginine), lactic acid (Lactic avcid), proline (Proline), betaine (Betaine), it is preferable to include any one or more selected from among PPG-12-PEG-50 lanolin. The wet elasticity agent may contain 4.95 to 9.65% by weight of one or more of the components.

The polyquaternium-33 is a chemical hair conditioning agent and may perform functions of static electricity prevention, film formation, and hair fixation.

The steatrimonium chloride and cetrimonium chloride have antibacterial properties and at the same time soften the hair texture and prevent static electricity, and the hydrolyzed keratin can prevent the hair from cracking and tangling.

The PEG-12-dimethicone is known as a hair conditioning agent.

The hydroxypropyltrimonium hydrolyzed silk refers to quaternary ammonium obtained by the reaction of hydroxypropyltrimonium hydrolyzed silk with hydroxypropyltrimethylamine, and functions as a chloride as a hair conditioning and antistatic agent.

The silicon quaternium-18 functions as an antistatic agent, increases the flexibility of the hair, and provides an effect of moisturizing.

The propylene glycol (Propylene Glycol), together with glycerin, is utilized as a solvent and can function as a wetting agent or a moisturizing agent, and arginine is one of the amino acids constituting a protein and performs a conditioning function.

The lactic acid (Lactic avcid) performs antibacterial and moisturizing functions, and proline is obtained through the hydrolysis of protein, and it is known that the solubility in water is the highest among amino acids. Betaine also has three methyl groups as an amino acid and gives softness to the hair.

The PPG-12-PEG-50 lanolin may function as an anti-adhesion compound and may function as an ethoxylated natural alcohol.

It may also contain chitosan. The chitosan is a component present in the shells of insects such as crustaceans such as crabs and shrimps, and grasshoppers. The molecular structure chemically bound by a polysaccharide substance called glucosamine is very similar to our human tissues, so it has good affinity and has good immune response. It does not occur, so it is a highly useful ingredient. Chitosan is known to be absorbed into the hair to regulate the balance of moisture and fat in the cell membrane, protect the hair by creating a moisturizing film, and calm the sensitive scalp to prevent hair loss and reduce dandruff.

In addition, it is preferable to further include PEG-50 Hydrogenated Castor Oil and/or POE-12 Nonylphenyl Ether, to be understood as a nonionic surfactant. I can. It is also used as a conditioning agent.

In addition, it is preferable to contain Disodium EDTA as a metal ion sequestering material to prevent rancidity.

In order to achieve the above object of the present invention, it consists of a mixture of an aqueous phase component and an oil phase component, and in order to allow those of ordinary skill in the art to easily implement the present invention, preferred of the present invention Embodiments will be described.

However, these Examples and Experimental Examples are for illustrative purposes only to aid understanding of the present invention, and the scope of the present invention is not limited to the following examples.

Example One: Persimmon leaf extract Preparation of hair external composition and comparative composition containing

As shown in the following table, the compositions of Examples 1 to 3 and Comparative Examples 1 to 2 were prepared, and the materials were added to purified water, stirred until uniform, and then tested as in Test Example.

In the case of Comparative Example 2, malic acid was applied in the same ratio, replacing chlorocono deltalactone.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Purified water to 100 to 100 to 100 to 100 to 100 Persimmon Leaf Extract 5 7 3 - 5 TEA-N-acyl-L-glutamate 3 3 5 - 3 Gluconodeltalactone 0.7 0.9 0.9 0.7 - Amodimethicone 0.1 0.1 0.1 0.1 0.1 Cetrimonium chloride 0.15 0.15 0.15 0.15 0.15 Steatrimonium chloride 0.1 0.1 0.1 0.1 0.1 Hydrolyzed Keratin 0.3 0.3 0.3 0.3 0.3 Silicon Quaternium-18 0.2 0.2 0.2 0.2 0.2 glycerin 5.0 5.0 5.0 5.0 5.0 Arginine 0.5 0.5 0.5 0.5 0.5 Propylene glycol 0.1 0.1 0.1 0.1 0.1 PPG-12-PEG-50 Lanolin 3.0 3.0 3.0 3.0 3.0 Chitosan 2.5 2.5 2.5 2.5 2.5 PEG-50 Hydrogenated Castor Oil 3.0 3.0 2.0 2.0 2.0

Test Example 1 : Hair strength and cracking prevention rate

The composition and content of Table 1 for external application for hair containing the persimmon leaf extracts of Comparative Examples 1 to 2 and Examples 1 to 4 were applied to a hair tress having a length of 15 cm and a weight of 5 g, and each of them was absorbed for 30 minutes.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Tensile strength improvement rate (%) 35.0 33.5 36.0 5.0 11.0 Crack prevention rate (%) 18.5 17.0 17.0 11.0 8.0

As shown in Table 2, when persimmon leaf extract and TEA-N-acyl-L-glutamate were applied, the tensile strength improvement ratio was remarkable compared to Comparative Example 1, which means that the hair became thicker and the hair was thickened. In contrast to Comparative Example 2, when glucono deltalactone was applied in the Examples, the absorption of active ingredients, which is a combination of the composition for external use of hair containing persimmon leaf extract, and TEA-N-acyl-L-glutamate, as well as the wet elasticity agent increased. There is a remarkable difference in preventing cracking.

Test Example 2 : Sensory evaluation

For the hairs applied in Examples 1 to 3 and Comparative Examples 1 to 2, sensory evaluation was conducted for the conditioning effect of the hair. Thirty women with an average back hair of 20 cm or more were selected to examine the conditioning effect for each composition, and the evaluation items were evaluated in the order of hair shine, softness, and thickening.

The evaluation criteria were evaluated in five levels ranging from 5 points to 1 point in order of good to bad.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 burnish 4.60 4.17 4.27 4.00 3.07 Soft 3.70 3.60 3.83 3.30 2.67 Thickening 4.67 4.07 4.30 3.00 3.47

As shown in Table 3, there was a remarkable increase in gloss and softness compared to Comparative Example 2 to which glucono deltalactone was not applied in the Examples, and when persimmon leaf extract and TEA-N-acyl-L-glutamate were applied, the hair was thicker. The improvement of the luggage could be confirmed with the naked eye and touch.

Test Example 3 : Sustainability evaluation

For the same tester, 10 days after the test, a test for persistence was performed by reevaluating the items of gloss, softness, and thickness. Proximity to the initial figure can be seen as an indicator of sustainability.

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 burnish 4.47 4.00 3.37 2.83 2.33 Difference -0.13 -0.17 -0.90 -1.17 -0.74 Soft 3.30 2.67 2.60 2.47 1.50 Difference -0.40 -0.93 -1.23 -0.83 -1.17 Thickening 4.60 4.03 3.37 2.33 2.00 Difference -0.07 -0.04 -0.93 -0.67 -1.47

In particular, Example 1 showed a reduction rate of less than 0.5 in all of the indicators, and the average decrease in Comparative Example 1 was 0.89 and the average decrease in Comparative Example 2 was 1.13. It should be noted that it has risen significantly.

Claims (3)

Persimmon leaf extract,
TEA-N-acyl-L-glutamate that crosslinks the lost cystine bond by binding to tannin of the persimmon leaf extract,
Amodimethicone, Cetrimonium Chloride, Stearimonium Chloride, Hydrolyzed Keratin, Silicon Quaternium-18, Glycerin, Arginine, Propylene Glycol, PPG-12-PEG-50 Lanolin, Chitosan and Blood Wet elasticity agent containing Easy-50 hydrogenated caster oil,
Hair external preparation composition for improving hair condition containing glucono deltalactone that controls the absorption of tannins, TEA-N-acyl-L-glutamate and wet elasticity agents by determining the hardening and acidity of the hair.
The method of claim 1,
A composition for external application for hair comprising 50 to 70% by weight of purified water, 5% by weight of persimmon leaf extract, 3% by weight of TEA-N-acyl-L-glutamate, and 0.7% by weight of glucono deltalactone.
The method of claim 2,
The wet elasticity agent,
0.1% by weight of amodimethicone, 0.15% by weight of cetrimonium chloride, 0.1% by weight of stearimonium chloride, 0.3% by weight of hydrolyzed keratin, 0.2% by weight of silicon quaternium-18, 5.0% by weight of glycerin , Arginine 0.5% by weight, propylene glycol 0.1% by weight, PPG-12-PEG-50 lanolin 3.0% by weight, chitosan 2.5% by weight, and sebum-50 hydrogenated castor oil 3.0% by weight for improving hair condition containing Composition for external use of hair.

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