KR102023889B1

KR102023889B1 - Cosmetic Composition Comprising Tea Tree Oil, Stick-form Cosmetics For Improving Acne Symptom Using Thereof, And Method For Preparing Thereof

Info

Publication number: KR102023889B1
Application number: KR1020170051890A
Authority: KR
Inventors: 박성민; 김기선; 유권종
Original assignee: 코스맥스 주식회사
Priority date: 2017-04-21
Filing date: 2017-04-21
Publication date: 2019-09-23
Also published as: KR20180118487A

Abstract

The present invention provides a cosmetic composition comprising a natural wax and tea tree oil comprising at least one of vegetable natural oil, bead wax, candelella wax, rice bran wax.

Description

Cosmetic composition comprising tea tree oil, stick-type cosmetics for improving acne symptoms using the same, and a method for preparing the same {Cosmetic Composition Comprising Tea Tree Oil, Stick-form Cosmetics For Improving Acne Symptom Using Thereof, And Method For Preparing Thereof}

The present invention relates to a cosmetic composition comprising a natural wax and tea tree oil comprising at least one of vegetable natural oils, bead wax, candelella wax, rice bran wax, including tea tree oil to help relieve acne symptoms It is easy to carry as a solid at room temperature and is characterized in that the sustained release care is possible.

Acne is a chronic inflammatory disease of the sebaceous glands attached to the hair follicles that make up the hair. It usually begins in puberty and gradually decreases after 30s. However, some acne persists in adulthood, and in some cases the acne begins late and continues to adulthood. Adult acne, which is divided into two clinical forms, has recently increased.

The exact cause of acne is not known, but more than one cause is a combination of causes. Recently, as the fine dust from China is rapidly increasing, fine dust can block pores, cause acne or rashes, irritate the skin and worsen dermatitis. Accordingly, the demand for cosmetics for improving acne symptoms is increasing.

Conventional acne symptom amelioration cosmetics contain a very small proportion of tea tree oil or lavender oil and most of the cosmetics are applied to the entire face as an oil painting type. However, tea tree oil may cause irritation in areas other than acne symptoms because of the irritability and volatility of the tea tree oil, and when used in a local area, there is a drawback that the dryness is strong and the duration of the effect is not long.

In addition, conventional commercially available tea tree oil-containing oil-dispersed products are characterized by a high tea tree oil content, but are not suitable for acne symptom characteristics that should be frequently managed because they use a dropper type container. In addition, the conventional oil-dispersed product is a liquid type mainly volatilized so quickly there was a problem that the sustained release care is difficult.

Therefore, the present inventors have made a thorough research effort to overcome the problems of the prior art as described above, and completed the cosmetic composition containing the tea tree oil of the present invention.

KR 10-1995-0016705 A (released July 20, 1995)

The main object of the present invention is to solve the problems of irritation, volatility, and the like, which are disadvantages of conventional high tea tree products, and cosmetic composition comprising tea tree oil, which also alleviates specific odors, and stick-type cosmetics for improving acne symptoms using the same. It is to provide a manufacturing method.

According to one aspect of the invention, the present invention is a vegetable natural oil; Natural wax including at least one of bead wax, candelella wax, rice bran wax; And it provides a cosmetic composition comprising a tea tree oil.

The cosmetic composition is based on the total weight of the composition, 50 to 89% by weight of vegetable natural oil; Natural wax 10 to 40% by weight; Tea tree oil may comprise 0.1 to 15.0% by weight.

In addition, the cosmetic composition is based on the total weight of the composition, 50 to 95% by weight of vegetable natural oil; Bead wax 1-30% by weight; 1 to 10% by weight of canderella wax; Rice bran wax 1-5 wt%; And tea tree oil may comprise 0.1 to 15.0% by weight.

The vegetable natural oil is selected from the group consisting of Immortelle oil, clove oil, paturi oil, carrot seed oil, sunflower seed oil, castor oil, grape seed oil, soybean oil, rosehip oil, macadamia nut oil, rice bran oil, olive oil It may be more than one.

In addition, the cosmetic composition may further include a preservative, a moisturizing agent, a film forming agent, a pigment and a perfume.

In addition, the cosmetic composition may be solid at room temperature.

In addition, the cosmetic composition may have a function for improving acne symptoms.

According to another aspect of the present invention provides a stick-type cosmetics for improving acne symptoms using a cosmetic composition.

The stick-type cosmetics for improving acne symptoms may have a hardness of 70 to 250 when measured using a rheometer (Rheometer CR-500DX).

According to still another aspect of the present invention, there is provided a method of manufacturing a stick cosmetic for improving acne symptoms.

The cosmetic composition of the present invention is a solid having a moderate hardness at room temperature using a natural wax, such as vegetable natural oil and beeswax, candelella wax, including tea tree oil to improve acne symptoms at a high content level. .

By using these characteristics, it has easy usability and portability, overcomes the shortcomings of the short duration of efficacy of the conventional oil-disperse type liquid formulations, and is capable of sustained-release treatment of acne symptoms and also alleviates problems such as irritation and specific odor. It can provide a stick cosmetic for improving acne symptoms.

1 is a graph comparing the microbial propagation test results of the examples of the present invention and the comparative example.

Hereinafter, the present invention will be described in more detail with reference to Examples. Since these examples are only for illustrating the present invention, the scope of the present invention is not to be construed as being limited by these examples.

The cosmetic composition of the present invention is a vegetable natural oil; Natural wax including at least one of bead wax, candelella wax, rice bran wax; And tea tree oil.

In the present invention, preferably, the cosmetic composition, based on the total weight of the composition, from 50 to 89% by weight of vegetable natural oil; Natural wax 10 to 40% by weight; Tea tree oil contains 0.1 to 15.0% by weight.

When the proper amount of the natural wax is used, tea tree oil as an active ingredient remains in the skin for a long time and has a good spreadability and a sense of thickness, and because it acts as a sustained release, there is less rejection due to a specific odor and less drying feeling due to volatilization. Preferably, the natural wax is in the range of 10 to 40% by weight of the total content, less than 10% by weight does not increase the difficulty of having a stick-shaped formulation, when the content of the wax is more than 40% by weight, the hardness is high, the applicability is reduced There is a concern. More preferably, it is about 10 to 35% by weight based on the total weight of the composition, most preferably 15 to 35% by weight.

In the case of vegetable natural oil, if the content is less than 50% by weight, the wax content may be increased, and in the case of more than 89% by weight, the content of the wax may be too small to maintain a stick shape.

Preferably, 50 to 80% by weight of the natural oil and 15 to 25% by weight of the natural wax, when used with tea tree oil, along with the antibacterial effect against acne bacteria, will have a suitable application and solid form (Jar ) Can be easily filled into a container of type or stick type.

In addition, the tea tree oil may have little efficacy when included in less than 0.1% by weight, and may contain formulation stability because it is a volatile essential oil when included in excess of 15% by weight.

In another embodiment, the cosmetic composition is 50 to 95% by weight of the vegetable natural oil based on the total weight of the composition; Bead wax 1-30% by weight; 1 to 10% by weight of canderella wax; Rice bran wax 1-5 wt%; And tea tree oil may comprise 0.1 to 15.0% by weight.

In the case of beeswax 1 to 30% by weight, including moderate hardness and application properties of about 150, especially when using beeswax 20 to 25% by weight and 5 to 10% by weight candelella wax can realize a high hardness stable formulation. In the case of rice bran wax, when 1 to 5% by weight of the finished stick formulation has a high melting point, the formulation stability can be improved. On the other hand, if the beeswax, canderella wax and rice bran wax is prescribed within 1% by weight, respectively, the shape of the stick does not appear well.

In addition, when the total wax content is more than 40% by weight, the applicability is very poor than when 25 to 30% by weight. Specifically, after applying 5 times the weight of the stick formulation of 28% by weight wax formulation and the stick formulation of 45% wax content filled with a similar amount in the area of 2cm horizontally and vertically, the reduced mass was measured. It was confirmed that the amount of formulation decreased 0.5% to some extent, but the wax content of 40% by weight was confirmed to decrease by 0.02% and hardly applied.

In the present invention, the plant natural oil refers to a plant-derived raw material extracted using an extraction method such as a supercritical extraction method, a steam extraction method, a physical extraction method, and the like, and is not limited thereto. For example, argan oil, jojoba oil, sunflower seed oil, sweet almond oil, immortelle oil, clove oil, paturi oil, carrot seed oil, sunflower seed oil, castor oil, grape seed oil, soybean oil, rosehip oil, macadamia oil Nut oil, rice bran oil, olive oil It may be one or more selected from the group consisting of.

On the other hand, in the present invention can be used both conventional tea tree oil, for example, may be extracted by the steam distillation method.

In addition, the cosmetic composition of the present invention, in addition to the bead wax, candelella wax, rice bran wax, cotton wax, carnauba wax, esparto wax, Japan wax, Montan wax, sugar cane Wax, beeswax, wool wax, shellac, microwax, ceresin, ozokerite, uricuric wax, cork fiber wax, lignite wax, berry wax, shea butter or synthetic wax, such as paraffin wax, polyethylene wax, fisher- Further comprising one or more waxes selected from the group consisting of waxes, hydrogenated oils, silicone waxes and derivatives thereof (alkyl derivatives, alkoxy derivatives, and / or esters of polymethylsiloxanes) produced by Fischer-Tropsch synthesis It may include. Preferably, natural waxes having a Comedogenic Rate of 3 or less are used.

In addition, the cosmetic composition may further comprise lavender oil, lemongrass oil in addition to tea tree oil as an active ingredient acne symptom relief. If lavender oil and lemongrass oil are used, the application rate may be applied at 0.1 to 15% by weight, similar to tea tree oil.

Lavender and lemongrass oils have anti-inflammatory effects similar to tea tree oils. Like tea tree oils, lavender oil and lemongrass oil may be ineffective when used at less than 0.1% by weight. Can be.

The cosmetic composition of the present invention may further include preservatives, humectants, film-forming agents, pigments, and fragrances used in cosmetics in the art within the range not impairing the effects of the present invention in addition to the above components.

Preservatives refer to all raw materials that dissolve in the oil phase and exhibit antiseptic activity, and natural raw materials may include essential oils extracted by steam distillation with an antibacterial and anti-inflammatory effect. Preferably it comprises at least 5% by weight of tea tree oil, lavender oil, lemongrass oil into the active material, the synthetic raw material may include 0.05% by weight of dehydroacetic acid,

Film-forming agent refers to all synthetic polymers that can be released to the oil phase to form a film, and the pigment refers to both the organic pigment and the animal and vegetable natural pigments (LAKE) treated. Also fragrance refers to both natural and synthetic fragrances.

The cosmetic composition of the present invention is characterized in that it is substantially solid at room temperature. The cosmetic composition of the present invention preferably has physical properties that are all dissolved at a temperature of 80 ° C. or higher in the manufacturing step. After filling it in the product container and undergoing a cooling process, it is possible to obtain a cosmetic composition of a solid dosage form at room temperature.

Specific examples in which such a solid cosmetic composition is put into a container are a solid foundation, a concealer, a base, a lip balm, and the like, and most preferably, may be applied as a stick formulation. By implementing in such a stick formulation, as well as easy to apply to the face, it may be easy to apply to acne symptom site other than the face.

As another embodiment of the present invention, the stick-type cosmetic for improving acne symptoms using the cosmetic composition may have a hardness of 70 to 250, preferably 70 to 230, measured at room temperature using a rheometer CR-500DX. . For example, when the total wax content is 30% by weight or more, it is 200 or more, and when the total wax content is 20% by weight or less, it is 100 or less.

According to still another aspect of the present invention, there is provided a method of manufacturing a stick cosmetic for improving acne symptoms. Specific processes such as heating, mixing, and stirring may be performed according to conventional manufacturing methods. This manufacturing process is obvious in view of the skill level of those skilled in the art.

Example

To combine the components of Table 1 to prepare a cosmetic composition. The content in Table 1 is based on weight percent.

Raw material name Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 One Argan oil to 100 to 100 to 100 to 100 Natural Oil and Ethyl Alcohol to 100 2 Jojoba oil 15.0 15.0 15.0 15.0 - 3 Sunflower seed oil 15.0 15.0 15.0 15.0 - 4 Sweet Almond Oil 15.0 15.0 15.0 15.0 - 5 Beads wax 30.0 30.0 30.0 30.0 - 6 Canderella wax 10.0 10.0 10.0 10.0 - 7 Tea tree oil 2.5 5.0 10.0 - 15.0

Examples 1, 2, and 3 are prescription of oil-dispersed stick type containing tea tree oil, and include 2.5%, 5.0%, and 10.0%, respectively, by adjusting the tea tree oil content. For Comparative Example 1, it is the same oil dispersion formulation except for tea tree oil. Comparative Example 2 is a commercially available tea tree oil high content liquid formulation.

In each manufacturing process, the components shown in the table are first added, dispersed, and dissolved. Next, the composition of Examples 1-3 and Comparative Example 1 is filled into a container and then cooled to obtain a solid cosmetic composition of a stick formulation.

However, in the case of Comparative Example 2, the components shown in the table are added one by one, and are left without mixing at room temperature without melting.

Test Example

1.1. Hardness measurement

The comparative evaluation of hardness was performed about the cosmetic composition of Example 1-3 and Comparative Example 1. After storing the samples in a 25 ℃ thermostat for 24 hours, the hardness was measured using a rheometer (Rheometer CR-500DX). The measurement results are shown in Table 2.

Example 1 Example 2 Example 3 Comparative Example 1 Hardness 195 187 175 203

Referring to Table 2, it can be seen that the difference in hardness is not large when comparing the contents of Examples 1-3 and Comparative Example 1 according to the present invention.

1.2. Feeling And Outlier evaluation

In the test, the degree of moisturizing and stimulating feelings were evaluated by the scorers from 0 to 10 points in units of 1 point. There were 10 points for 0 points sufficient for no moisturizing feeling, and 10 points for zero points for stimulation.

As a result, the difference in usability was small with respect to Example 1-3 and Comparative Example 1. Therefore, it can be seen that the irritation characteristic of tea tree oil is alleviated while maintaining the benefit of moisturizing feeling when applying tea tree oil to the oil dispersion formulation.

In the specific odor evaluation, first, the tea tree peculiar odor was recognized by the tester, and then the sensory evaluation was performed for each formulation with 0 points for the specific odor and 10 points for no odor. For tea tree oil containing formulations, slight specific odors were observed starting from 5.0%.

1.3. Antimicrobial evaluation

Paper disc method was performed to evaluate the antimicrobial activity of the cosmetic composition in Examples 1-3 and Comparative Examples 1 and 2.

The p-acne bacteria were cultured in a solid medium, the formulations of Examples and Comparative Examples were dissolved in DMSO, placed in the center, and the antibacterial activity was measured by measuring the size of the circles where the bacteria were killed.

As a result of the antimicrobial test, all of Examples 1-3 showed the improved antimicrobial activity compared to Comparative Example 1, and among them, the antimicrobial activity of Example 3 showed the highest result. That is, it was confirmed that the antibacterial activity test result in the order of Example 3> Example 2> Example 1, in the case of Example 3 P-acne of the same level as Comparative Example 2 that is effective in reducing the existing acne symptoms improvement It shows fungal resistance.

1.4. High temperature stability evaluation

The stability evaluation of the cosmetic composition of Example 1-3 and Comparative Example 1 was performed.

According to the temperature of Table 3 and stored in a thermostat for 14 days, the appearance change was visually observed, and the results are shown in Table 3.

Example 1 Example 2 Example 3 Comparative Example 1 25 ℃ ○ ○ ○ ○ 37 ℃ ○ ○ ○ ○ 45 ℃ ○ ○ ○ ○ Cycle * ○ ○ ○ △ (a slight oil seepage occurs)

* Cycle temperature range is -15 ℃ ~ 45 ℃ and one cycle is 12 hours.

As a result, as confirmed in Table 3, the embodiment of the present invention was confirmed that the high temperature stability is better than Comparative Example 1. This is because, in the embodiment, when a large amount of oil is replaced with volatile tea tree oil, the oil bleeding phenomenon may be the same, but the phenomenon is not seen, and the surface stability is considered to be increased.

1.5. User Survey Results

In order to compare and analyze the cosmetic composition of the present invention with a conventional oil-dispersed liquid formulation, a questionnaire was conducted after using the products to which the respective compositions of Example 3 and Comparative Example 2 were applied for 7 days.

Specifically, 20 men and women in their 20s and 40s were classified into two groups, and commercially available tea tree oil-rich liquid formulations (Comparative Example 2) and in-house developed tea tree oil sticks (Example 3) were used for 7 days each. The survey was conducted after the use. It was recommended to use more than three times a day, and the content of the questionnaire consisted of questions for measuring specific odor, irritability, and sustained release.

The content of the question Tea tree liquid formulation group Tea tree stick type use group Odor in use X (with special smell) ○ (less odor) Irritation (dry) X (dry feeling normal) ○ (no dry feeling) Persistence (Sensory Evaluation) X (persistent medium) ○ (excellent durability) Continuous use after ○ (high availability) ○ (high availability)

All evaluations were evaluated from 0 to 10 points, and 10 points for positive parts (low odor, no dryness, excellent sustainability, high usability) and negative parts (with odor, dry feeling, sustainability) in sensory evaluation Low, no usability) was evaluated as 0, and the average was 0 to 5 and ○ and 6 to 10 were expressed as X.

From the test example it was confirmed that there is less specific odor and irritation than the existing liquid formulations, moisturizing feeling, sustained-release care is possible. Since the continuous usability is a very large item, both products were found to be excellent.

The embodiments described above are merely exemplary of the present invention, and are used only for the purpose of illustrating the present invention, and are not used to limit the scope of the present invention described in the meaning or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this.

Claims

50-79 wt% vegetable natural oil;
20 to 40% by weight of natural wax including at least one of bead wax, candelella wax, and rice bran wax; And
Tea tree oil contains 0.1 to 15.0% by weight,
Cosmetic composition, characterized in that the solid at room temperature.

delete

The method of claim 1,
Based on the total weight of the composition,
50 to 70% by weight of vegetable natural oil;
Bead wax 20-30% by weight;
1 to 10% by weight of canderella wax;
Rice bran wax 1-5 wt%; And
Cosmetic composition comprising 0.1-15.0 wt% tea tree oil.

The method of claim 1,
Vegetable natural oils include Immortelle oil, Clove oil, Paturi oil, Carrot seed oil, Sunflower seed oil, Castor oil, Grape seed oil, Soybean oil, Rosehip oil, Macadamia nut oil, Rice bran oil, Olive oil Cosmetic composition, at least one selected from the group consisting of.

The method of claim 1,
A cosmetic composition further comprising a preservative, a humectant, a film-forming agent, a pigment, and a perfume.

delete

The method of claim 1,
Cosmetic composition with the function of improving acne symptoms.

Claim 1, 3, 4, 5 and 7 of the stick-type cosmetics for improving acne symptoms using the cosmetic composition of any one of claims.

The method of claim 8,
Stick-type cosmetics for improving acne symptoms having a hardness of 70 to 250 when measured using a rheometer (Rheometer CR-500DX).

Claim 1, claim 3, claim 4, claim 5 and claim 7, using the cosmetic composition of any one of claims for improving the acne symptom-producing stick-type cosmetics, the manufacturing method comprises the following steps , Manufacturing method:
a) adding natural wax and tea tree oil to the vegetable natural oils in order, dispersing and dissolving them to prepare a cosmetic composition; And
b) cooling the prepared composition after filling it in a container.