KR20200141256A - Clay pack composition - Google Patents

Abstract

The present invention relates to a pack composition, and more specifically, to a leave-on type clay pack composition which does not require cleansing after application. The present invention includes inorganic thickeners, polar oil, and natural pH adjusters.

Description

Clay pack composition {Clay pack composition}

The present invention relates to a pack composition, and more particularly, to a leave-on type clay pack composition that does not require cleansing after application.

Pack is a product that effectively absorbs the pack composition into the skin to maximize the effects of the pack composition, such as skin moisturizing, blood circulation, anti-wrinkle, whitening, and antioxidant. The formulation of the pack composition is varied in powder, liquid, emulsion, cream, and the like, and the composition may be applied to the skin as such, or may be applied in a state impregnated with a sheet such as a nonwoven fabric. It is common to remove the pack after a certain period of time after it is applied to the skin.Peel-off type to remove the formed film, wash-off type to wash off with water, and tissue to remove with a tissue Various types of pack products such as Tissue-off type are on the market. In particular, since the pack containing the clay component hardens after a certain period of time at room temperature, the conventional clay pack was manufactured in a wash-off type.

These conventional products require cleansing and are troublesome in use, and there is a shortcoming in that the time for the mineral components contained in the clay pack to be absorbed into the skin is short, and the moisturizing property is insufficient due to cleansing. Accordingly, consumers' demand for a pack that has the efficacy of an existing pack and does not require a removal process after skin application is increasing.

The present invention provides a rib-on type clay pack composition that does not require cleansing after application.

The pack composition according to the invention comprises an inorganic thickener, a polar oil and a natural pH adjuster.

The pack composition according to the present invention is a rib-on type, and it is convenient to use since there is no need to remove the pack composition such as cleansing after skin application. In addition, since the pack composition according to the present invention does not need to be removed by washing your face, the absorption of the mineral components present in the clay is promoted, and the moisturizing persistence is improved.

1 is a photograph of a particle of a pack composition according to Example 2 observed under an electron microscope after 3 months under CYC conditions (severe conditions, temperature cycling).
2 is a photograph of a particle of the pack composition according to Example 2 observed with an electron microscope after 3 months at 5°C.
3 is an electron microscope photograph of the particles of the pack composition according to Example 3 after 3 months under CYC conditions.
4 is an electron microscope photograph of the particles of the pack composition according to Example 3 after 3 months at 5°C.
5 is an electron microscope photograph of particles of the pack composition according to Example 4 after 3 months under CYC conditions.
6 is an electron microscope photograph of particles of the pack composition according to Example 4 after 3 months at 5°C.
7 is an electron microscope photograph of the particles of the pack composition according to Example 5 after 3 months under CYC conditions.
8 is a photograph of a particle of the pack composition according to Example 5 observed with an electron microscope after 3 months at 5°C.
9 is an electron microscope photograph of particles of the pack composition according to Example 14 after 3 months under CYC conditions.
10 is an electron microscope photograph of the particles of the pack composition according to Example 14 after 3 months at 5°C.
11 is an electron microscope photograph of particles of the pack composition according to Example 15 after 3 months under CYC conditions.
12 is a photograph of the particles of the pack composition according to Example 15 observed with an electron microscope after 3 months at 5°C.
13 is an electron microscope photograph of particles of a pack composition according to Comparative Example 7 after 3 months under CYC conditions.
14 is a photograph of a particle of the pack composition according to Comparative Example 7 observed with an electron microscope after 3 months at 5°C.
15 is a graph showing a change in sebum secretion after application of the pack composition according to Example 3 and Comparative Examples 1-3.
16 is a graph showing the improvement rate of sebum secretion after application of the pack composition according to Example 3 and Comparative Examples 1-3.

Hereinafter, the present invention will be described. However, it is not limited only by the following contents, and each component may be variously modified or selectively used as necessary. Therefore, it is to be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The pack composition according to the invention comprises an inorganic thickener, a polar oil and a natural pH adjuster. In addition, the pack composition according to the present invention may further include polyols, preservatives, and other additives commonly used in pack compositions, if necessary. Hereinafter, the composition of the pack composition of the present invention is as follows.

Inorganic thickener

The pack composition according to the invention comprises an inorganic thickener. The inorganic thickener improves stability by controlling the viscosity of the pack composition, forms a formulation, and functions as a dispersion stabilizer constituting a lattice structure at the interface between the oil phase and the aqueous phase, thereby reducing stickiness when applied to the skin.

The kind of the inorganic thickener is not particularly limited, and may include, for example, one or more clay minerals selected from the group consisting of montmorillonite, bentonite, nontronite, and hectorite. When the above-described clay mineral is used as an inorganic thickener, an excellent sebum adsorption effect can be obtained. For example, the inorganic thickener may be one containing montmorillonite.

The content of the inorganic thickener may be 0.01 to 30% by weight, for example 0.1 to 20% by weight, another example 1 to 12% by weight, another example 4 to 8% by weight, based on the total weight of the pack composition. have. When the content of the inorganic thickener is less than 0.01% by weight, it may be difficult to remove sebum and form a formulation, and when it exceeds 30% by weight, it may be difficult to form an emulsified formulation suitable for the ribon type.

Polar oil

The pack composition according to the present invention comprises a polar oil. Polar oils provide oil to the skin and provide a moisturizing feeling by forming a moisturizing film.

The kind of the polar oil is not particularly limited, and fatty oil and/or butter may be used. The fatty acid oil may include one or more selected from the group consisting of sunflower seed oil, sweet almond oil, and meadowfoam seed oil, and the butter is 1 selected from the group consisting of shea butter, mango seed butter, and cupuacu seed butter. It may contain more than one species. For example, the polar oil may include fatty acid oil and butter, and as another example, the polar oil may include sunflower seed oil and shea butter.

The content of the polar oil may be 0.01 to 40% by weight, for example 0.1 to 30% by weight, another example 1 to 20% by weight, and another example 5 to 15% by weight, based on the total weight of the pack composition. . When the content of the polar oil is less than 0.01% by weight, the moisturizing effect may be weak, and when it exceeds 40% by weight, it may be difficult to form an emulsified formulation suitable for the ribon type.

Natural pH adjuster

The pack composition according to the present invention comprises a natural pH adjuster. The natural pH adjuster serves to reduce skin irritation and allow it to be used as a leave-on type by adjusting the pH of the pack composition to a level applicable to the skin.

The kind of the natural pH adjusting agent is not particularly limited, and as an example, in the group consisting of honey extract, glycolic acid, lactic acid, malic acid, and tartaric acid. It may include at least one selected. For example, the natural pH adjuster may include a honey extract.

The honey extract contains carbohydrates, minerals, vegetable pigments, enzymes, pollen, and the like, and contains a large amount of gluconic acid, and thus acts as a natural pH adjuster. In addition, it can improve skin texture by softening keratin and promoting the skin regeneration cycle along with the role of pH control.

The honey extract can be prepared by a conventional extraction method known in the art. As an example, the honey extract may be prepared by adding 1 kg of a rapeseed honey stock solution to 10 to 15 times the weight of water, extracting at 0 to 10°C for 24 hours, and then filtering.

The content of the natural pH adjuster may be 0.01 to 20% by weight, for example 0.1 to 15% by weight, another example 1 to 10% by weight, another example 3 to 6% by weight, based on the total weight of the pack composition. have. When the content of the natural pH adjuster is less than 0.01% by weight, the moisturizing and skin gloss effect may be weak, and when it exceeds 20% by weight, it may be difficult to form an emulsified formulation suitable for the leave-on type.

additive

The pack composition according to the present invention may further contain a polyol as needed. Polyol plays a role of imparting a moisturizing effect and an antiseptic effect.

The polyol may be used without particular limitation as long as it is commonly used in the art, and the group consisting of glycerin, propanediol, methylpropanediol, butylene glycol, polyglycerin-3, diglycerin, isopentyldiol, xylitol and sorbitol It may include one or more selected from. For example, the polyol may include one or more of propanediol and glycerin.

The content of the polyol may be 1 to 30% by weight, for example 5 to 20% by weight, and in another example 10 to 15% by weight, based on the total weight of the pack composition. When the content of the polyol satisfies the above-described range, the pack composition may have an appropriate viscosity and exhibit excellent moisturizing and antiseptic effects.

The pack composition according to the present invention may further include a preservative if necessary. The preservative serves to improve storage stability by preventing microbial growth and decay in the pack composition.

The preservative may be used without particular limitation as long as it is commonly used in the art, and 1,2-hexanediol, phenoxy ethanol, methyl paraben, ethyl paraben, ethylhexyl glycerin, pentylene glycol, hydroxyacetophenone, It may include at least one selected from the group consisting of glyceryl caprylate and caprylyl glycol. For example, the preservative may include 1,2-hexanediol.

The content of the preservative may be 0.1 to 5% by weight, for example, 0.1 to 3% by weight, or 1 to 2% by weight, based on the total weight of the pack composition. When the content of the preservative satisfies the above range, the storage stability of the pack composition can be effectively improved.

The pack composition according to the present invention may further include additives commonly used in the pack composition, if necessary. For example, skin active ingredients, flavoring agents, preservatives, and the like may be included.

The skin active ingredient is an ingredient capable of imparting useful effects to the skin, and includes, for example, a moisturizing ingredient, a whitening ingredient, an anti-wrinkle ingredient, and a UV-blocking ingredient. For example, the skin active ingredients are retinol, retinyl palmitate, retinyl acetate, retinoic acid, coenzyme Q10, collagen, hyaluronic acid, ceramide, collagen, caffeine, chitosan, ascorbic acid, ascorbyl glucoside, alpha bisabolol , Tocopherol, tocopherol acetate, arbutin, niacinamide, adenosine, retinol acetate, idebenone, oleanolic acid, hydrolyzed collagen, vitamins A, D, E, and the like.

Hereinafter, the present invention will be described in more detail through examples. However, the following examples are only intended to aid understanding of the present invention, and the scope of the present invention is not limited to the examples in any sense.

[Example 1-22]

According to the composition of Table 1-3 below, each component was mixed to prepare a pack composition of Example 1-22. The unit of use of each component shown in Table 1-3 is by weight.

Specifically, polyol was added to purified water, heated to 80°C, and an inorganic thickener was added to hydrate at 8,000 RPM and 80°C for 10 minutes using a HOMO Mixer. The oil phase was heated to 80 °C, added to the aqueous phase, and emulsified for 5 minutes at 7,000 RPM and 80 °C using a homomixer. After cooling the mixture to 45° C., a natural pH adjuster was added and emulsified at 8,000 RPM and 45° C. for 3 minutes using a homomixer, and then cooled to 35° C. to prepare a pack composition of Example 1-22. I did.

[Comparative Example 1-8]

A pack composition of Comparative Examples 1-8 was prepared in the same manner as in Examples, except for the composition of Table 4 below. The unit of use of each component shown in Table 4 is by weight.

[Experimental Example-Evaluation of Physical Properties]

1. Stimulation test

20 μL of the pack composition prepared according to each Example and Comparative Example was added dropwise to the IQ Chamber, followed by wiping and drying the backs of 30 test subjects with 70% ethanol. The pack composition of each Example and Comparative Example was applied with a closed patch for 24 hours, the patch was removed and the test site was marked with a marking pen, and then 30 minutes and 12 hours after removal of the patch, magnifying glass (SK101-3X, SeKi potical, Korea) The skin reaction was observed using.

The criteria for the evaluation score and average skin reactivity are shown in Tables 5 and 6 below, and the skin reaction results evaluated based on these criteria are shown in Tables 7 and 8. The reactivity in Tables 7 and 8 is the average value of the reactivity shown by each of the test subjects, and the average reactivity shown in Table 8 is the average value of the reactivity after 30 minutes and 12 hours of removing the patch.

As can be seen from Tables 7 and 8, it was confirmed that the pack compositions according to Examples 3, 8 and 14 had lower irritation than the pack compositions according to Comparative Examples 7 and 8, and in particular, according to Example 3 In the case of the pack composition, it was confirmed that irritation did not occur at all.

2. Formulation stability

As a result of preparing the pack composition according to each of the Examples and Comparative Examples, in the case of Examples 1-22 and Comparative Examples 7, 8, a formulation was formed. In the case of Comparative Examples 1-6, the formulation was not formed.

For the compositions of Examples and Comparative Examples in which the formulation was formed, hardness, appearance, and pH changes were observed to evaluate long-term stability of the formulation, and the results are shown in Table 9 below. The hardness was measured with a Rheo meter (model name: NRM-2002), and was measured under conditions of descending from the surface of the formulation to 15 mm (speed: 30 cm/min) with a 2 cm radius pin. The hardness of the pack composition prepared according to each Example and Comparative Example was measured after 3 months (CYC: severe conditions (temperature cycle)).

In addition, for the pack composition prepared according to Examples 2-5, 14, 15 and Comparative Example 7, the hardness (kg/mm ² ) after 1 month, 2 months, 3 months and 6 months was measured, The results are shown in Tables 10 to 16 below (CYC: severe conditions (temperature cycle), -: not measured). The hardness was measured with a Rheo meter (model name: NRM-2002), and was measured under conditions of descending from the surface of the formulation to 15 mm (speed: 30 cm/min) with a 2 cm radius pin.

Example 2

The hardness of the pack composition of Example 2 is as shown in Table 10 below. The pack composition of Example 2 had a low content of the inorganic thickener, and the overall hardness was low and the hardness slightly decreased over time, but was maintained at a certain level. In addition, it can be seen that the temperature-specific variation is not large, indicating good formulation stability.

The pack composition of Example 2 was left at CYC for 3 months and then the particle size was measured with an electron microscope, and the results are shown in FIG. 1. In addition, after standing for 3 months at 5° C., the particle size was measured with an electron microscope, and the results are shown in FIG. 2. As shown in Figs. 1 and 2, it was observed that most of the particles were formed within 8 μm in diameter under CYC conditions, and most of the particles were formed within 10 μm in diameter at 5°C.

Example 3

The hardness of the pack composition of Example 3 is as shown in Table 11 below. It can be seen that the temperature-specific variation is not large, and the hardness is maintained at a certain level even after 6 months, indicating good formulation stability.

The pack composition of Example 3 was left at CYC for 3 months and then the particle size was measured with an electron microscope, and the results are shown in FIG. 3. In addition, the particle size was measured with an electron microscope after standing at 5° C. for 3 months, and the results are shown in FIG. 4. As shown in Figs. 3 and 4, it was observed that most of the particles were formed within 2.5 μm in diameter under the CYC condition, and most of the particles were formed within 3 μm in diameter at 5°C.

Example 4

The hardness of the pack composition of Example 4 is as shown in Table 12 below. Although the hardness slightly increased, the temperature-specific variation was not large, and the hardness was maintained at a certain level even after 6 months, indicating good formulation stability.

After leaving the pack composition of Example 4 in CYC for 3 months, the particle size was measured with an electron microscope, and the results are shown in FIG. 5. In addition, the particle size was measured with an electron microscope after standing at 5° C. for 3 months, and the results are shown in FIG. 6. As shown in FIGS. 5 and 6, it was observed that most of the particles were formed within 5 μm in diameter under the CYC condition, and most of the particles were formed within 8 μm in diameter at 5°C.

Example 5

The hardness of the pack composition of Example 5 is as shown in Table 13 below. It was observed that the hardness slightly decreased at 5°C, but overall, the hardness was maintained at a certain level even after 6 months. However, after 3 months under CYC conditions, the floatability deteriorated.

The pack composition of Example 5 was left at CYC for 3 months and then the particle size was measured with an electron microscope, and the results are shown in FIG. 7. In addition, the particle size was measured with an electron microscope after standing at 5° C. for 3 months, and the results are shown in FIG. 8. As shown in Figs. 7 and 8, it was observed that most of the particles were formed within 10 μm in diameter under CYC conditions, and most of the particles were formed within 20 μm in diameter at 5°C.

Example 14

The hardness of the pack composition of Example 14 is as shown in Table 14 below. Although the hardness slightly decreased over time, the temperature-specific variation was not large, and the hardness was maintained at a certain level even after 6 months, indicating good formulation stability.

The pack composition of Example 14 was left at CYC for 3 months and then the particle size was measured with an electron microscope, and the results are shown in FIG. 9. In addition, the particle size was measured with an electron microscope after standing at 5° C. for 3 months, and the results are shown in FIG. 10. As shown in FIGS. 9 and 10, it was observed that most of the particles were formed within 3 μm in diameter under the CYC condition, and most of the particles were formed within 5 μm in diameter at 5°C.

Example 15

The hardness of the pack composition of Example 15 is as shown in Table 15 below. Overall, the hardness showed a tendency to decrease over time, and it was confirmed that the long-term stability of the formulation was somewhat inferior.

The pack composition of Example 15 was left at CYC for 3 months and then the particle size was measured with an electron microscope, and the results are shown in FIG. 11. In addition, the particle size was measured with an electron microscope after standing at 5° C. for 3 months, and the results are shown in FIG. 12. As shown in FIG. 11, it was confirmed that particles having a diameter of 10 μm or more were irregularly formed under the CYC condition. In addition, as shown in FIG. 12, the particle radius increased after 3 months at 5°C, and at the same time, the particle coalescence phenomenon was observed, and it was confirmed that the long-term stability of the emulsion was somewhat inferior.

Comparative Example 7

The hardness of the pack composition of Comparative Example 7 is as shown in Table 16 below. Overall, the hardness showed a tendency to decrease over time, and it was confirmed that the formulation stability was poor.

After leaving the pack composition of Comparative Example 7 in CYC for 3 months, the particle size was measured with an electron microscope, and the results are shown in FIG. 13. In addition, after standing for 3 months at 5° C., the particle size was measured with an electron microscope, and the results are shown in FIG. 14. As shown in FIG. 13, under the CYC condition, most of the particles were formed within 5 μm in diameter, but showed a non-dense shape. In addition, as shown in FIG. 14, the particle radius increased after 3 months at 5°C, and at the same time, a particle coalescence phenomenon was observed, and it was confirmed that the emulsion stability was poor.

3. Moisturizing effect

The pack compositions prepared according to Examples 3, 8 and 14, and Comparative Examples 7 and 8 were applied to the forearm of each experimenter for 40 adult female subjects. 1 hour, 3 hours, 6 hours, 24 hours, and 48 hours after application, the skin moisture content was measured using a Corneometer, and the average value and the rate of improvement of moisturization are shown in Table 17 below.

As can be seen from Table 17, it was confirmed that the moisturizing improvement rate when the pack composition according to the example was applied was significantly superior to that when the pack composition according to the comparative example was applied. In particular, it was confirmed that the moisturizing improvement rate of the pack composition according to Example 3 was the most excellent.

4. Improve sebum secretion

After applying the pack composition of Example 2-4 and Comparative Example 1-3 to 10 people (average age 40.8 years), Sebumeter SM815 (Courage and Khazaka, Germany) was used to evaluate the amount of change and improvement in sebum secretion. The results are shown in Table 18, Figs. 15 and 16.

As can be seen from Tables 18, 15, and 16, it was confirmed that the improvement rate of sebum secretion when the pack composition according to the embodiment was applied was significantly superior to the case where the pack composition according to the comparative example was applied.

5. Gloss improvement

After applying the pack compositions of Examples 3, 8, 14 and Comparative Examples 7, 8 to 10 people, the gloss improvement rate was evaluated using Glossymeter GL200, and the results are shown in Table 19 below.

As can be seen from Table 19, it was confirmed that the gloss improvement rate when the pack composition according to the example was applied was significantly superior to that when the pack composition according to the comparative example was applied. In particular, it was confirmed that the gloss improvement rate of the pack composition according to Example 3 was the most excellent.

Claims (9)

Pack composition comprising an inorganic thickener, a polar oil and a natural pH adjuster. The pack composition of claim 1, wherein the inorganic thickener comprises at least one selected from the group consisting of montmorillonite, bentonite, nontronite, and hectorite. The pack composition of claim 1, wherein the polar oil comprises at least one of fatty acid oil and butter. The pack composition of claim 1, wherein the polar oil comprises at least one selected from the group consisting of sunflower seed oil, shea butter, mango seed butter, cupuacu seed butter, sweet almond oil, and meadow foam seed oil. The pack composition according to claim 1, wherein the natural pH adjuster comprises at least one selected from the group consisting of honey extract, glycolic acid, lactic acid, malic acid, and tartaric acid. The pack composition of claim 1, comprising 0.01 to 30% by weight of an inorganic thickener, 0.01 to 40% by weight of a polar oil, and 0.01 to 20% by weight of a natural pH adjuster, based on the total weight of the pack composition. The pack composition of claim 1, further comprising at least one of a polyol and a preservative. The pack composition of claim 1, wherein the pack composition is for sebum adsorption, moisturizing, and gloss improvement. 9. The pack composition according to any one of claims 1 to 8, wherein the pack composition is of a leave-on type.

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