KR102011109B1 - Cosmetic composition with sodium polyitaconate and method for producing the same - Google Patents

Abstract

In the present invention, the cosmetic composition containing sodium polyitaconate exhibits skin elasticity improving effect or skin pore reduction effect. In addition, the cosmetic composition of the present invention has the advantage that the feeling of sticking when using or after use is improved. In addition, the present invention can maintain stability without changing the formulation, such as phase separation, discoloration, odor.

Description

Cosmetic composition containing sodium polyitaconate and its preparation method {Cosmetic composition with sodium polyitaconate and method for producing the same}

The present invention relates to a cosmetic composition, and more particularly, to a cosmetic composition containing sodium polyitaconate as an active ingredient.

As the skin ages, collagen in the dermis decreases, and elasticity decreases rapidly. Skin aging can be accelerated by lifestyles such as skin damage caused by sunlight, dry environment, smoking, and fine dust.

Due to the reduced elasticity of the skin, the skin sags or wrinkles are formed, and various skin care products have been released to improve this. In general, the elasticity improvement and wrinkle improvement products form a film on the skin surface when applied to the skin to impart a tightening effect to the skin, and the physical tightening effect improves the skin elasticity.

Commonly used raw materials to give skin elasticity are synthetic raw materials such as polyvinyl alcohol, polyacrylamide, and polyquaternium-10. Since the synthetic raw materials use harmful components such as methanol, acrylamide, and epoxide in the process, there is a high possibility that harmful components remain in the finished product, and if used continuously, they may be exposed to chemical stimuli.

Meanwhile, natural film forming agents include xanthan gum, a natural gum component, cellulose composed of polysaccharides, and albumin, a water-soluble protein component. There was a problem that the feeling of use appeared, and thus can be applied only to the wash off type of product was limited. In addition, consumers prefer natural-derived cosmetics more than synthetic materials with high irritation, and thus, research and development on natural-derived cosmetics for improving skin elasticity is needed.

Republic of Korea Patent Registration No. 10-1666348 (October 10, 2016.) discloses a method for producing a cosmetic composition for improving skin wrinkles or skin elasticity using natural derived materials including Baek Ha Sewao and cosmetic compositions prepared accordingly . Republic of Korea Patent No. 10-0955389 (registered April 21, 2010) discloses a cosmetic composition for reducing pores and sebum inhibition containing natural products.

The present invention is to provide a cosmetic composition exhibiting an effect of improving skin elasticity or reducing skin pores. In addition, the cosmetic composition of the present invention is to provide a cosmetic composition in which the sticky feeling is reduced during or after use while exhibiting sufficient skin elasticity improvement or skin pore reduction effect. In addition, the present invention can maintain stability without changing the formulation, such as phase separation, discoloration, malodor.

The present invention provides a cosmetic composition for improving skin elasticity, comprising sodium polyitaconate.

In addition, the present invention provides a cosmetic composition for reducing skin pores, characterized in that it comprises sodium polyitaconate (sodium polyitaconate).

In the cosmetic composition of the present invention, the sodium polyitaconate is preferably contained in an amount of 0.1 to 20% by weight based on the entire cosmetic composition.

In addition, the present invention is prepared by adding sodium polyitaconate to a hydrophilic solvent and dissolving it for 10 to 30 minutes while stirring at 2,000 to 3,000 rpm at 70 to 80 ℃, and then cooled to 40 to 50 ℃ It provides a method for producing a cosmetic composition for improving skin elasticity or shrinking skin pores, characterized in that it is added to the cosmetic composition.

In the method for producing a cosmetic composition of the present invention, the sodium polyitaconate is preferably contained in an amount of 0.1 to 20% by weight based on the entire cosmetic composition.

The present invention can provide a cosmetic composition exhibiting an effect of improving skin elasticity or reducing skin pores. In addition, the cosmetic composition of the present invention has the advantage that the feeling of sticking when using or after use is improved. In addition, the present invention can maintain stability without changing the formulation, such as phase separation, discoloration, odor.

1 is a photograph comparing the size and number of pores before and after use of the cosmetic composition comprising sodium polyitaconate of the present invention.

The present invention provides a cosmetic composition for improving skin elasticity or cosmetic composition for improving skin pores, comprising sodium polyitaconate.

Generally, materials included in the cosmetic composition for improving skin elasticity include polyvinylpyrrolidone, albumin, xanthan gum, cellulose gum, and the like. The cosmetic composition of the present invention containing sodium polyitaconate has superior elasticity than the above components. It was confirmed to exhibit the maintenance ability. Sodium polyitaconate of the present invention was confirmed to maintain excellent skin elasticity with the passage of time immediately after skin application. In addition, it was confirmed that the pores shrink and improve the effect as well as maintaining skin elasticity.

On the other hand, the present invention by adding sodium polyitaconate to a hydrophilic solvent (warm-dissolved 10 ~ 30 minutes while stirring at 70 ~ 80 ℃ at 2,000 ~ 3,000 rpm at 70 ~ 80 ℃ that was prepared by cooling to 40 ~ 50 ℃ It provides a method for producing a cosmetic composition for improving skin elasticity or reducing skin pores, characterized in that it is added to the cosmetic composition.

At this time, when the temperature is less than 70 ℃ stirring when dissolving the sodium polyitaconate is not completely dissolved may not exhibit the improvement or reinforcement of skin elasticity, precipitates at low temperatures or may be agglomerated when stirred. Moreover, it is not necessary to stir more than 80 degreeC from an economical viewpoint. On the other hand, it is preferable to sufficiently agitate for 10 to 30 minutes so as not to cause agglomeration phenomenon, more preferably 20 minutes. If it is stirred for less than 10 minutes, it does not dissolve sufficiently, and if it exceeds 30 minutes, it is not preferable in terms of economics.

In general, the cosmetic composition of the present invention may be a cosmetic composition including an aqueous phase and an oil phase, and it is possible to significantly homogenize sodium polyitaconate to the cosmetic composition through the above method.

On the other hand, the cosmetic composition of the present invention may further contain a preservative, preservative, fragrance and the like as necessary.

Meanwhile, bubbles may be generated by mixing or heat during cosmetic production, and in the present invention, a defoaming process may be performed to remove bubbles.

On the other hand, the sodium polyitaconate of the present invention is preferably contained in 0.1 to 20% by weight based on the entire cosmetic composition. If added in less than 0.1% by weight, there is a fear that the effect of improving the skin elasticity is not sufficiently due to the content is small, when added to more than 20% by weight may cause agglomeration phenomenon or stickiness when using the skin .

Cosmetic compositions of the present invention may contain auxiliaries commonly used in the cosmetic field such as hydrophilic or lipophilic active agents, preservatives, antioxidants, solvents, fragrances, fillers, blockers, pigments, odorants, dyes and the like. The amounts of these various adjuvants are amounts commonly used in the art, such as from 0.001 to 30% by weight relative to the total weight of the composition. In any case, the adjuvant and its proportions will be selected so as not to adversely affect the desirable properties of the cosmetic composition according to the invention.

Moreover, the cosmetic composition of this invention can be used overlapping with other cosmetic compositions other than this invention. In addition, the cosmetic composition according to the present invention may be used according to a conventional method of use, and the number of times of use may vary depending on the skin condition or taste of the user.

The cosmetic composition of the present invention may be used for improving skin elasticity, maintaining or strengthening, shrinking or improving pores.

Hereinafter, the content of the present invention will be described in detail through the following examples and experimental examples. However, the scope of the present invention is not limited to the following Examples and Experimental Examples, but includes modifications of equivalent technical ideas.

Example 1 Preparation of Sodium Polyitaconate-Containing Cosmetics of the Present Invention

In this example, a cosmetic composition containing sodium polyitaconate was prepared by the formulation of Table 1 below. However, sodium polyitaconate was used in purified water by stirring at 20, 2,500 rpm for 20 minutes at 75 ° C, heating and dissolving the mixture.

Meanwhile, sodium polyitaconate was replaced with polyvinylpyrrolidone, albumin, xanthan gum, and cellulose gum, respectively, to prepare in the same manner as described above to prepare Comparative Examples 1 to 4 (Table 1).

Example 1
(weight%) Comparative Example 1
(weight%) Comparative Example 2
(weight%) Comparative Example 3
(weight%) Comparative Example 4
(weight%) Control
(weight%) Purified water to 100 to 100 to 100 to 100 to 100 to 100 Sodium Polyitanate 3 - - - - - Polyvinylpyrrolidone - 3 - - - - albumin - - 3 - - - Xanthan Gum - - - 3 - - Cellulose gum - - - - 3 - glycerin 5 5 5 5 5 5 Butylene Glycol 3 3 3 3 3 3 Dipropylene Glycol 2 2 2 2 2 2 antiseptic Quantity Quantity Quantity Quantity Quantity Quantity Spices Quantity Appropriate Quantity Quantity Quantity Quantity Sum 100 100 100 100 100 100

Experimental Example 1: Confirmation of skin elasticity effect of the cosmetic composition containing sodium polyitaconate]

In the present experimental example, the skin elasticity of the cosmetic composition comprising sodium polyitaconate prepared in Example 1 was to be confirmed. Twenty subjects were randomly selected and 2 g of the cosmetic compositions of Example 1, Comparative Examples 1 to 4 and the control group were applied to the skin, respectively. Skin elasticity from 1 hour to 4 hours immediately after application and after application was measured and shown as an average value in Table 2 below. Skin elasticity measurement device used A-One Smart facial recognition (BOMTECH) P-Sensor.

Elasticity Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Control Immediately after application 32 30 31 30 30 32 1 hour later 32 28 29 29 29 28 2 hours later 31 25 25 24 27 25 4 hours later 29 24 23 23 24 22

As shown in Table 2, the cosmetic composition of Example 1 containing the sodium polyitaconate of the present invention, according to the passage of time immediately after application, is Comparative Example 1 (polyvinylpyrrolidone), Comparative Example 2 (albumin), It was confirmed that the skin elasticity was maintained relatively high as compared with the cosmetic composition of Comparative Example 3 (xanthan gum) and Comparative Example 4 (cellulose gum). Accordingly, it was confirmed that the cosmetic composition containing sodium polyitaconate of the present invention has an excellent effect of maintaining skin elasticity.

On the other hand, in order to confirm the pore size reduction effect according to the skin elasticity effect of the cosmetic composition comprising sodium polyitaconate of the present invention, any experimenter was allowed to apply 2g of the cosmetic composition. Photographs were taken after 30 minutes and shown in FIG. 1. The photographing device used the A-One Smart facial recognizer (BOMTECH) P-Sensor, and as a result of the experiment, it was confirmed that the number of pores was greatly reduced (Fig. 1).

By such a result, the pore reduction and the improvement effect of the cosmetic composition containing the sodium polyitaconate of this invention were confirmed.

Experimental Example 2: Confirmation of Skin Elasticity Effect According to the Content of Sodium Polyitaconate]

In the present experimental example, in the cosmetic composition containing sodium polyitaconate, it was intended to confirm the appropriate content of sodium polyitaconate. Sodium polyitaconate was prepared in the same manner as in Example 1 by varying the content according to Table 3 below.

Raw material Example 1
(weight%) Example 2
(weight%) Example 3
(weight%) Example 4
(weight%) Example 5
(weight%) Example 6
(weight%) Purified water to 100 to 100 to 100 to 100 to 100 to 100 Sodium Polyitanate 3 0.1 One 5 10 20 glycerin 5 5 5 5 5 5 Butylene Glycol 3 3 3 3 3 3 Dipropylene Glycol 2 2 2 2 2 2 antiseptic Appropriate Appropriate Appropriate Appropriate Appropriate Appropriate Spices Appropriate Appropriate Appropriate Appropriate Appropriate Appropriate Sum 100 100 100 100 100 100

The results of measuring skin elasticity in the same manner as in Experimental Example 1 are shown in Table 4 below.

Elasticity Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Immediately after application 32 25 27 33 35 38 1 hour later 32 24 26 32 33 36 2 hours later 31 24 25 31 32 35 4 hours later 29 23 24 30 30 34

As shown in Table 4, Example 2 (0.1 wt% sodium polyitaconate), Example 3 (1 wt% sodium polyitaconate), Example 1 (3 wt% sodium polyitaconate), Example 4 ( The skin elasticity was measured in order of 5% by weight sodium polyitaconate), Example 5 (10% by weight sodium polyitaconate), and Example 6 (20% by weight sodium polyitaconate).

As the content of sodium polyitaconate increased in the cosmetic composition of the present invention, the skin elasticity was measured to be high, and it was determined that at least 0.1 wt% or more is required to generate the effect of improving skin elasticity and shrinking pores.

Experimental Example 3: Evaluation of feeling according to the content of sodium polyitaconate

In this experimental example was to evaluate the feeling of use of the cosmetic composition of Examples 1 to 6 according to Table 3.

Ten men and women in their 20s and 40s were randomly selected and a questionnaire was conducted immediately after applying the cosmetic composition. Each of the cosmetic compositions of Examples 1 to 6 were used in the same amount, and a questionnaire was conducted for feeling of use. The survey results are shown in Table 5 below.

Cosmetics
Composition Choice Feeling (persons) (%)

Example 1

Very good 6 60 good 3 30 usually One 10 Bad 0 - Very bad 0 -

Example 2

Very good 8 80 good 2 20 usually 0 - Bad 0 - Very bad 0 -

Example 3

Very good 7 70 good 2 20 usually One 10 Bad 0 - Very bad 0 -

Example 4

Very good 5 50 good 2 20 usually 2 20 Bad One 10 Very bad 0 -

Example 5

Very good One 10 good 3 30 usually 4 40 Bad 2 20 Very bad 0 -

Example 6

Very good 0 - good One 10 usually 5 50 Bad 3 30 Very bad One 10

As shown in Table 5, it can be seen that as the content of sodium polyitaconate increases, satisfaction for the feeling of use decreases.

Therefore, it is expected that sodium polyitaconate should preferably be added in an amount of 20% by weight or less, so that stickiness in use may occur to the extent that consumers do not feel rejection.

Experimental Example 4 Evaluation of Formulation Stability of Cosmetic Composition Containing Sodium Polyitaconate

In the present experimental example was to compare the formulation stability of Example 1, Comparative Examples 1 to 4 prepared above. Formulation changes (separation, discoloration, odor) were observed from day 1 to week 4 in an incubator set at 0, 5, 25, 45 ° C. According to the change in formulation, the symbol (◎: good, ○: normal, △: poor) is shown in Table 6 below.

time 0 ℃ 5 ℃ 25 ℃ 45 ℃

Example 1

1D ◎ ◎ ◎ ◎ 3D ◎ ◎ ◎ ◎ 1 W ◎ ◎ ◎ ◎ 2 W ◎ ◎ ◎ ◎ 1M ◎ ◎ ◎ ◎

Comparative Example 1

1D ◎ ◎ ◎ ◎ 3D ◎ ◎ ◎ ◎ 1 W ◎ ◎ ◎ ◎ 2 W ◎ ◎ ◎ ◎ 1M ◎ ◎ ◎ ◎

Comparative Example 2

1D ◎ ◎ ◎ ◎ 3D ◎ ◎ ◎ ◎ 1 W ◎ ◎ ◎ ◎ 2 W ◎ ◎ ◎ ◎ 1M ◎ ◎ ◎ ◎

Comparative Example 3

1D ◎ ◎ ◎ ◎ 3D ◎ ◎ ◎ ◎ 1 W ◎ ◎ ◎ ◎ 2 W ◎ ◎ ◎ ◎ 1M ◎ ◎ ◎ ◎

Comparative Example 4

1D ◎ ◎ ◎ ◎ 3D ◎ ◎ ◎ ◎ 1 W ◎ ◎ ◎ ◎ 2 W ◎ ◎ ◎ ◎ 1M ◎ ◎ ○ ○

Control

1D ◎ ◎ ◎ ◎ 3D ◎ ◎ ◎ ◎ 1 W ◎ ◎ ◎ ◎ 2 W ◎ ◎ ◎ ◎ 1M ◎ ◎ ◎ ◎

As shown in Table 6, it was confirmed that the cosmetic composition of Example 1 of the present invention was excellent in formulation stability at different temperatures without separation, discoloration, and odor as compared to the cosmetic compositions of Comparative Examples 1 to 4.

Claims (5)

Sodium polyitaconate (sodium polyitaconate) comprising 3 to 5% by weight, the cosmetic composition for improving skin elasticity and pore reduction, characterized in that the stickiness is improved.
delete delete Sodium polyitaconate was added to the hydrophilic solvent and dissolved by heating for 10 to 30 minutes with stirring at 2,000 to 3,000 rpm at 70 to 80 ° C., followed by cooling to 40 to 50 ° C. ~ 5% by weight, the method of producing a cosmetic composition for improving skin elasticity and skin pores, characterized in that the stickiness is improved.

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