KR102415460B1 - Solid powder cosmetic composition having transparency and preparation method thereof - Google Patents

Abstract

The present invention relates to a transparent solid powder cosmetic composition comprising inelastic silicone spherical powder, silicone oil and silicone gel, and a method for manufacturing the same, and compression molding by mixing inelastic spherical silicone powder, silicone oil, and silicone gel in a certain ratio When used, the transparent appearance allows the user to feel the visual effect, and at the same time, when used on the skin, it is not sticky and freshly finished, so that the marketability of the cosmetic composition can be increased, and the moldability and impact resistance are remarkable, so that the cosmetic composition is deteriorated over time. The effect of maintaining the shape without change is very good.

Description

Solid powder cosmetic composition having transparency and preparation method thereof

The present invention relates to a solid powder cosmetic composition comprising inelastic spherical silicone powder, silicone oil and silicone gel, and a method for preparing the same.

Until recently, in the art, not only the function of cosmetics to enhance the user's beauty, but also technologies for providing the visual beauty of the cosmetics themselves have been developed. Cosmetics with a transparent appearance have also been developed as one of the trends in this industry, and many developments have been made for formulations composed mainly of aqueous components such as lotions and emulsions, or formulations composed of oily components containing a curing agent such as wax.

In the case of a formulation composed of an aqueous component, it is very difficult in that the amount of oil as a binder is small in applying the clearing technology.

On the other hand, since powder cosmetics contain little moisture or oil as a component, it is difficult to apply the conventional transparent technology. Accordingly, the invention of a transparent solid powder cosmetic has been disclosed, but there is a demand for the development of a cosmetic that has an excellent feeling of use and excellent stability at the same time.

Existing cosmetic compositions contain dextrin fatty acid ester, volatile oil, and spherical powder, but still do not sufficiently satisfy the fresh feeling of use, and since it contains volatile oil, there is a problem that changes over time occur as the oil volatilizes.

In addition, in the case of a transparent cosmetic containing an existing elastic powder mixture, inelastic spherical silicone powder, and emulsion, when the elastic powder mixture is blended in a certain amount, restoring force is generated during compression molding, which reduces the moldability and significantly improves the impact resistance of the molded product. There is a problem that lowers it, and there is no evaluation or solution for it.

Accordingly, the present inventors have endeavored to create a cosmetic that is transparent in appearance, is not sticky, has a fresh feeling of use and a powdery finish, and has little change and excellent stability without change over time.

Accordingly, it is an object of the present invention to provide a transparent solid powder cosmetic composition comprising inelastic spherical silicone powder, silicone oil and silicone gel.

Another object of the present invention is to provide a method for preparing a transparent solid powder cosmetic composition comprising inelastic spherical silicone powder, silicone oil and silicone gel.

The present invention relates to a transparent solid powder cosmetic composition comprising inelastic spherical silicone powder, silicone oil and silicone gel, and a method for producing the same, by compression molding by mixing inelastic spherical silicone powder, silicone oil and silicone gel in a certain weight ratio It is possible to obtain a transparent solid powder cosmetic having transparency in appearance, excellent feeling in use, and high stability.

Hereinafter, the present invention will be described in more detail.

An example of the present invention relates to a solid powder cosmetic composition comprising inelastic spherical silicone powder, silicone oil and silicone gel as active ingredients.

In the present invention, as the inelastic spherical silicone powder, polymethylsilsesquioxane beads may be used, for example, Tospiel 145A (TOSPEARL 145A), Tospiel 2000B (TOSPEARL 2000B), Grant (GRANT) ) company's GRANSIL PSQ and/or KOBO's DIASPHERE KS-500, etc. can be used, and specifically Tospiel 145A (TOSPEARL 145A) and/or Tospiel 2000B (TOSPEARL 2000B) can be used.

In the present invention, the inelastic spherical silicone powder may be included in 55 to 65% by weight, 55 to 60% by weight based on the total solid powder cosmetic composition, for example, may be included in 55 to 60% by weight. When the content of the inelastic spherical silicone powder is less than 55% by weight based on the total solid powder cosmetic composition, the stickiness is increased and it is not refreshing and it may be difficult to maintain the shape as a solid cosmetic composition. In addition, when it exceeds 65% by weight, the transparency of the cosmetic may be deteriorated.

In the present invention, the refractive index of the inelastic spherical silicone powder may be 1.35 to 1.50, 1.38 to 1.50, 1.40 to 1.50, 1.35 to 1.48, 1.35 to 1.45, 1.38 to 1.48, 1.38 to 1.45, 1.40 to 1.48, 1.40 to 1.45. , for example, may have a refractive index of 1.41.

In the present invention, the inelastic spherical silicone powder may have an average particle size of 3 to 6 um, 3 to 5 um, 4 to 6 um, for example, 4 to 5 um. The average particle size of the inelastic spherical silicone powder affects the transparency, usability, and stability of the finally obtained cosmetic. If the average particle size is less than 3 um, transparency decreases and spreadability decreases.

In the present invention, the oil absorption of the inelastic spherical silicone powder is 50 to 90 cc/100g, 50 to 85 cc/100g, 50 to 80 cc/100g, 50 to 75 cc/100g, 50 to 70 cc/100g, 50 to 65 cc /100g, 55 to 90 cc/100g, 55 to 85 cc/100g, 55 to 80 cc/100g, 55 to 75 cc/100g, 55 to 70 cc/100g, 55 to 65 cc/100g, for example For example, it may be 60 cc/100g. The amount of oil absorption of the inelastic spherical silicone powder affects the oil content required to show the transparency of the cosmetic and the feeling of use during application. If the amount of oil absorption of the powder is less than 50, a sweating phenomenon occurs in which the blended oil rises to the surface, and if it is greater than 90, a change in transparency may occur with time passing.

In the present invention, the inelasticity of the inelastic spherical silicone powder may have a hardness of 90 to 100 using a Zwick Hardness Tester, for example, 95. This is because the more elastic, the lower the moldability and impact resistance of the cosmetic due to the restoring force during compression molding.

In the present invention, the silicone oil may be dimethicone, cetyl dimethicone, or the like.

In the present invention, dimethicone includes Shin-Etsu's KF-96A-6cs, KF-96A-10cs, KF-96A-20cs, Dow Corning's Dow Corning® 200 Fluid 6cSt, Dow Corning® 200 Fluid 10cSt, Dow Corning® 200 Fluid 20cSt, Dow Corning® 2502 Cosmetic Fluid, KCC's SeraSense SF 6, SeraSense SF 10, SeraSense SF 20, etc. can be used.

In the present invention, as cetyl dimethicone, Evonik's ABIL® Wax 9801, KCC's SeraSoft SW71, etc. can be used.

In the present invention, the content of the silicone oil is 5 to 15% by weight, 7 to 15% by weight, 9 to 15% by weight, 5 to 13% by weight, 7 to 13% by weight, 9 to 13 based on the total solid powder cosmetic composition Weight%, 5 to 11% by weight, 7 to 11% by weight, 9 to 11% by weight may be included, for example, may be included in 10% by weight. When the content of silicone oil is less than 5% by weight based on the total solid powder cosmetic composition, transparency of the cosmetic does not appear.

In the present invention, the viscosity of the silicone oil is 6 to 40 cSt, 10 to 40 cSt, 15 to 40 cSt, 6 to 35 cSt, 10 to 35 cSt, 15 to 35 cSt, 6 to 30 cSt, 10 to 30 cSt, 15 to 30 cSt, 6 to 25 cSt, 10 to 25 cSt, and 15 to 25 cSt, for example, may be 20 cSt. If the viscosity of the silicone oil is lower than 6 cSt, it is volatile at room temperature, and the cosmetic composition changes over time.

In the present invention, the refractive index of the silicone oil may be 1.35 to 1.5, 1.35 to 1.45, 1.35 to 1.42, for example, 1.41. The transparency of the cosmetic is maintained when the refractive index of the inelastic spherical silicone powder and the refractive index of the oil to be blended are similar. Therefore, when the refractive index of the silicone oil is less than 1.35, transparency does not appear, and when the refractive index of the silicone oil is greater than 1.5, the clarity of transparency is deteriorated due to the scattering effect.

In the present invention, as the silicone gel, an addition reaction curing type silicone gel containing organopolysiloxane as a main component may be used.

As the silicone gel in the present invention, dimethicone and dimethicone/vinyldimethicone crosspolymer mixture, etc. can be used. Specifically, Shin-Etsu's KSG-16, Dow Corning's Dow Corning® 9041 Silicone Elastomer Blend, and Grant's DM can be used. -5, Basel's BSG-200S, BSG-260, BSG-5041, etc. can be selected and used.

In the present invention, the silicone gel prevents sweating from which the blended silicone oil is separated from the inelastic spherical silicone powder and oozes out to the cosmetic surface. In addition, it gives a soft feeling of use of cosmetics.

In the present invention, the content of the silicone gel is 20 to 35% by weight, 20 to 33% by weight, 20 to 30% by weight, 23 to 35% by weight, 23 to 33% by weight, 23 to 30 based on the total solid powder cosmetic composition Weight%, 26 to 35% by weight, 26 to 33% by weight, 26 to 30% by weight may be included, for example, it may be included by 28% by weight. When the content of the silicone gel is less than 20% by weight based on the total solid powder cosmetic composition, the effect is insignificant, and when it exceeds 35% by weight, it is difficult to maintain the cosmetic solid state.

In the present invention, the solid powder cosmetic composition may further include one or more selected from the group consisting of preservatives, fragrances and pearls.

In one embodiment of the present invention, the present invention specifically relates to a method for preparing a solid powder cosmetic composition comprising the following steps:

powder preparation step;

Oil part preparation stage;

A manufacturing step of preparing a mixture by mixing the powder part and the oil part; and

A molding step of compression molding by tableting the mixture.

The method will be described in detail.

The powder portion may contain 55 to 65% by weight, 55 to 60% by weight of the inelastic spherical silicone powder based on the total solid powder cosmetic composition, for example, 55 to 60% by weight.

In the oil part, the silicone oil is 5 to 15% by weight, 7 to 15% by weight, 9 to 15% by weight, 5 to 13% by weight, 7 to 13% by weight, 9 to 13% by weight, based on the total solid powder cosmetic composition, 5 to 11% by weight, 7 to 11% by weight, 9 to 11% by weight may be included, for example, may be included in 10% by weight.

The oil portion is 20 to 35% by weight, 20 to 33% by weight, 20 to 30% by weight, 23 to 35% by weight, 23 to 33% by weight, 23 to 30% by weight of the silicone gel based on the total solid powder cosmetic composition, 26 to 35% by weight, 26 to 33% by weight, 26 to 30% by weight may be included, for example, it may be included by 28% by weight.

The oil part may further include at least one selected from the group consisting of preservatives, fragrances and pearls.

In the present invention, compression molding may be performed by wet tableting, dry tableting, or extrusion tableting.

The wet tableting is tableting using a wet molding facility, and is a tableting method in which the powdery contents are made into a slurry using a solvent and then solidified (molded) through a process of removing the solvent by molding/drying.

When compression molding is performed by wet tableting, the cosmetic powder and solvent are separated from the upper and lower layers at a slow speed in the vessel, which is the supply part of the wet molding machine. Therefore, if the molding conditions are not frequently corrected during compression molding in continuous operation, differences in physical properties such as hardness and feeling of use may occur for each molding according to the passage of time.

The dry tableting is tableting using a dry molding facility, and is the most common method, and is a tableting method generally used for molding pressed powder. It is a tableting method that solidifies (molding) powdery contents by compressing them with mechanical force.

During compression molding with such dry tableting, granulation (agglomeration between particles) of the cosmetic occurs irregularly in the hopper, which is the supply part of the dry molding machine. Therefore, the cosmetic formed in this way has a problem in that it is easily damaged by an impact such as a drop. In addition, air bubbles are formed while the air does not escape in the cosmetic, and the cosmetic is more visible due to the transparency of the cosmetic itself, thereby deteriorating the aesthetics of the cosmetic appearance finally obtained.

In the present invention, extrusion tableting is tableting using an extrusion equipment, and is a tableting method in which the dough contents are extruded with an extruder and then cut/compressed to a desired shape to be solidified.

In this extrusion tableting method, the cosmetic dough prepared during compression molding is extruded into a certain shape through an extruder, and in this process, each composition constituting the cosmetic is more uniformly dispersed and compression molded by a punch applying a vacuum at the tableting portion, so that the cosmetic Air bubbles inside can also be removed.

In the manufacturing method of the solid powder cosmetic composition, content overlapping with the solid powder cosmetic composition is omitted in consideration of the complexity of the present specification.

The present invention relates to a transparent solid powder cosmetic composition comprising inelastic spherical silicone powder, silicone oil and silicone gel, and a method for manufacturing the same. , it can increase the marketability as a cosmetic composition that is not sticky and has a refreshing finish when used on the skin and has a transparent appearance that allows the user to feel the visual effect, and the formability and impact resistance of the cosmetic composition are remarkable, without changing the form The effect of maintaining is very good.

1 is a photograph showing before and after filling molding of the cosmetic composition of Example 1 according to Preparation Example of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, these examples are only for illustrating the present invention, and the scope of the present invention is not limited by these examples.

Preparation Example 1. Preparation of Examples

In one preparation of the present invention, the composition is divided into a powder part and an oil part. As shown in Table 1, Examples 1 and 2 were prepared by varying the types and content ratios of the components of the powder part and the oil part.

division content (wt%) Example 1 Example 2 powder part Inelastic Spherical Silicone Powder
(Momentive's Tospearl 2000B) 62 - Inelastic Spherical Silicone Powder
(Momentive's Tospearl 145A) - 62 Elastic Spherical Silicone Powder
(Shin-Etsu KSP-101) - - Inelastic spherical polymer resin powder
(SUNJIN SUN PMMA-M) - - Inelastic spherical inorganic polymerized powder
(KSPEARL Silica L-51) - - oil part silicone oil
(Shin-Etsu KF 96A 6CS) 10 - silicone oil
(ABIL WAX 9801 from Evonik) - 10 silicone gel
(Dow Corning DC 9041) - 28 silicone gel
(Shin-Etsu KSG-16) 28 - total 100 100 compression molding Filling / tableting method extrusion extrusion

Each of the powder parts was added to the Henschel mixer in weight % of Table 1, and then pre-stirred at low speed (400 to 700 rpm) and high speed (700 to 1500 rpm). The oil part was prepared by adding silicone oil and silicone gel constituting the oil part in the weight % of Table 1 to the azi mixer and then pre-stirring at low speed (400 to 700 rpm) and high speed (700 to 1500 rpm). An appropriate amount of additives such as preservatives and fragrance were added to the prepared oil part, and then mixed in an aji mixer at high speed (700 to 1500 rpm) to prepare a mixture.

Then, the mixture was mixed at a low speed (400 to 700 rpm) while slowly and evenly spraying the pre-stirred powder unit. Then, the prepared mixture was compression-molded in an aluminum pan with a thickness of 3 mm by extrusion tableting.

Specific preparation examples are as follows.

In Example 1, 62 wt% of inelastic spherical silicone powder (Tospearl 2000B, Momentive) was used for the powder part. For the oil part, 10 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 28 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrances were added as other additives, and compression molding was performed by extrusion tableting, and the results after filling molding are shown in FIG. 1 .

In Example 2, 62 wt% of inelastic spherical silicone powder (Tospearl 145A, Momentive) was used for the powder part. For the oil part, 10% by weight of silicone oil (ABIL WAX 9801 from Evonik) and 28% by weight of silicone gel (DC 9041 from Dow Corning) were mixed and used. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by extrusion tableting.

Preparation Example 2. Preparation of Comparative Example

In one preparation of the present invention, the composition is divided into a powder part and an oil part. As shown in Table 2, Comparative Examples 1 to 9 were prepared by varying the types and content ratios of the components of the powder part and the oil part.

division content (wt%) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 compare
Example 5 compare
Example 6 compare
Example 7 compare
Example 8 compare
Example 9 powder part Inelastic Spherical Silicone Powder
(Momentive
Tospearl 2000B) - - - 51 73 62 62 62 62 Inelastic Spherical Silicone Powder
(Momentive
Tospearl 145A) - - - - - - - - - Elastic Spherical Silicone Powder
(Shin-Etsu KSP-101) 62 - - - - - - - - Inelastic spherical polymer resin powder
(SUNJIN SUN PMMA-M) - 62 - - - - - - - Inelastic spherical inorganic polymerized powder
(KSPEARL Silica L-51) - - 62 - - - - - - oil part Silicone oil (KF 96A 6CS from Shin-Etsu) 10 10 10 13 7 - 38 10 10 Silicone oil (ABIL WAX 9801 from Evonik) - - - - - - - - - Silicone gel (DC 9041 from Dow Corning) - - - - - - - - - Silicone gel (KSG-16 from Shin-Etsu) 28 28 28 36 20 38 - 28 28 total 100 100 100 100 100 100 100 100 100 compression molding Filling / tableting method extrusion extrusion extrusion extrusion extrusion extrusion extrusion deflation wet

Each of the powder parts was added to the Henschel mixer in weight % of Table 1, and then pre-stirred at low speed (400 to 700 rpm) and high speed (700 to 1500 rpm). The oil part was prepared by adding silicone oil and silicone gel constituting the oil part in the weight % of Table 1 to the azi mixer and then pre-stirring at low speed (400 to 700 rpm) and high speed (700 to 1500 rpm). An appropriate amount of additives such as preservatives and fragrance were added to the prepared oil part, and then mixed in an aji mixer at high speed (700 to 1500 rpm) to prepare a mixture.

Then, the mixture was mixed at a low speed (400 to 700 rpm) while slowly and evenly spraying the pre-stirred powder unit. Then, the prepared mixture was compression-molded in an aluminum pan with a thickness of 3 mm by extrusion tableting, dry tableting, or wet tableting.

Specific preparation examples are as follows.

In Comparative Examples 1 to 3, the powder part was performed differently from Example 1, and the oil part, other additives, and compression molding were performed in the same manner.

For the powder portion of Comparative Example 1, 62 wt% of elastic spherical silicone powder (KSP-101 manufactured by Shin-Etsu) was used. For the oil part, 10 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 28 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by extrusion tableting.

In the powder portion of Comparative Example 2, 62% by weight of inelastic spherical polymer resin powder (SUN PMMA-M manufactured by SUNJIN) was used. For the oil part, 10 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 28 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by extrusion tableting.

In the powder portion of Comparative Example 3, 62 wt% of inelastic spherical inorganic polymerized powder (K.S.PEARL Silica L-51) was used. For the oil part, 10 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 28 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by extrusion tableting.

Comparative Examples 4 and 5 were carried out in the same manner as in Example 1 with the powder part, oil part, other additives, and compression molding method, but the content ratio of the powder part and the oil part was adjusted differently.

In the powder part of Comparative Example 4, 51 wt% of inelastic spherical silicone powder (Tospearl 2000B, Momentive) was used. For the oil part, 13 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 36 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by extrusion tableting.

In the powder portion of Comparative Example 5, 73 wt% of inelastic spherical silicone powder (Tospearl 2000B manufactured by Momentive) was used. For the oil part, a mixture of 7 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 20 wt% of silicone gel (KSG-16, Shin-Etsu) was used for the oil part. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by extrusion tableting.

Comparative Examples 6 and 7 were prepared in the same manner as in Example 1, but the silicone oil or silicone gel was not added to the oil part.

In the powder part of Comparative Example 6, 62 wt% of inelastic spherical silicone powder (Tospearl 2000B, Momentive) was used. In the oil part, no silicone oil was added, and only 38 wt% of silicone gel (KSG-16 manufactured by Shin-Etsu Corporation) was added.

In the powder part of Comparative Example 7, 62 wt% of inelastic spherical silicone powder (Tospearl 2000B, Momentive) was used for the powder part. For the oil part, 38 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) was added, and no silicone gel was added.

Comparative Examples 8 and 9 used the same powder part, oil part, and other additives as in Example 1, but compression molding was performed in dry and wet methods.

In the powder portion of Comparative Example 8, 62 wt% of inelastic spherical silicone powder (Tospearl 2000B, Momentive) was used. For the oil part, 10 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 28 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrances were added as other additives, and compression molding was performed in a dry tableting method.

In the powder portion of Comparative Example 9, 62 wt% of inelastic spherical silicone powder (Tospearl 2000B, Momentive) was used. For the oil part, 10 wt% of silicone oil (KF 96A 6CS, Shin-Etsu) and 28 wt% of silicone gel (KSG-16, Shin-Etsu) were mixed and used. In addition, preservatives and fragrance were added as other additives, and compression molding was performed by wet tableting.

Experimental Example 1. Sensory evaluation

Sensory evaluation was performed on the cosmetic compositions of Examples and Comparative Examples prepared by Preparation Examples of the present invention. The sensory evaluation evaluated the items of freshness during application, clumping during application, softness during use, oil peeling off during use, and presence of bubbles, and the following comparative evaluation method was used. First, 30 panelists are selected to provide examples and comparative examples, respectively, and scores are calculated on a scale of 1 to 10 according to the evaluation items, and then based on the average of the values, very bad, bad, normal, good, very They were classified as good, and the results are shown in Table 3 below.

evaluation item practice
Example 1 practice
Example 2 compare
Example 1 compare
Example 2 compare
Example 3 compare
Example 4 compare
Example 5 compare
Example 6 compare
Example 7 compare
Example 8 compare
Example 9 Freshness when applied good good good usually usually very
bad very
bad good good good good Clumping during application good good usually usually usually bad usually usually usually bad usually fades when used very
good very
good good usually usually very
bad usually usually usually usually usually Oil leaks out when used
(Sweating phenomenon) good good good good good very
bad usually usually very bad usually very bad the presence or absence of air bubbles good good good good good usually usually bad good very bad usually

As shown in Table 3, Example 1 showed good freshness when applied, good clumping when applied, very good softness when used, good oil leaking (sweating phenomenon) when used, and good bubble presence. .

In addition, Example 2 showed good freshness when applied, good clumping when applied, very good brittleness when used, good oil leaking (sweating phenomenon) when used, and good bubble presence. Through this, it was confirmed that the cosmetic compositions of Examples 1 and 2 showed an overall excellent sensory evaluation.

Comparative Example 1 showed good freshness when applied, normal clumping during application, good brittleness when used, good oil leaking (sweating phenomenon) when used, and good bubble presence.

Comparative Example 2 showed good freshness during application, normal clumping during application, normal brittleness during use, good oil leaking (sweating phenomenon) during use, and good bubble presence.

Comparative Example 3 showed good freshness during application, normal clumping during application, normal brittleness during use, good oil leaking (sweating phenomenon) during use, and good bubble presence.

Comparative Example 4 showed very bad freshness when applied, poor clumping during application, very poor brittleness when used, very bad oil leaking (sweating phenomenon) during use, and normal presence of bubbles. Comparative Example 4 was different from Example 1 in the content ratio of inelastic spherical silicone powder, silicone oil, and silicone gel. Through this, it was confirmed that the content ratio of inelastic spherical silicone powder, silicone oil and silicone gel is a factor affecting freshness when applied, clumping during application, softness during use, and oil peeling (sweating phenomenon) during use.

Comparative Example 5 showed very poor freshness when applied, normal clumping during application, normal brittleness during use, normal oil leaking (sweating phenomenon) during use, and normal presence of bubbles. Comparative Example 5 was different from Example 1 in the content ratio of inelastic spherical silicone powder, silicone oil, and silicone gel. Through this, it was confirmed that the content ratio of inelastic spherical silicone powder, silicone oil, and silicone gel was a factor affecting the freshness during application.

In particular, through Comparative Examples 4 and 5, it was confirmed that the appropriate range of the content ratio of the inelastic spherical silicone powder was 55 to 65 wt%.

Comparative Example 6 showed good freshness upon application, normal clumping during application, normal brittleness during use, normal oil bleed out (sweating phenomenon) during use, and poor bubble presence. Through this, it was confirmed that the presence or absence of air bubbles was poor because air bubbles did not escape well due to the resilient properties of the silicone gel.

Comparative Example 7 showed good freshness during application, normal clumping during application, normal brittleness during use, very poor oil leaking (sweating phenomenon) during use, and good bubble presence. Comparative Example 7 compared to Example 1 had a different silicone oil content and did not use a silicone gel. Through this, it was confirmed that the silicone gel prevented the oil from being separated from the inelastic spherical silicone powder and leaking out to the cosmetic surface (sweating phenomenon).

Comparative Example 8 showed good freshness when applied, poor clumping during application, normal brittleness during use, normal oil bleed out (sweating phenomenon) during use, and very poor bubble presence. Comparative Example 8 was prepared with the same powder, oil and other additives as in Example 1, but compression molding was performed in a dry tableting method. Through this, it was confirmed that, during compression molding in the dry tableting method, the granulation of the cosmetic occurred irregularly in the hopper, which is the supply part of the dry molding machine.

Comparative Example 9 showed good freshness when applied, normal clumping during application, normal brittleness during use, very poor oil leaking (sweating phenomenon) during use, and normal presence of bubbles. Comparative Example 9 was prepared using the same powder, oil, and other additives as in Example 1, but a compression molding method was performed using a wet method. Through this, it was confirmed that oil peeling (sweating phenomenon) may be affected depending on the tableting method.

Experimental Example 2. Transparency evaluation

Transparency evaluation was performed on the cosmetic compositions of Examples and Comparative Examples prepared by Preparation Examples of the present invention. Transparency evaluation was confirmed through comparison whether the characters on the floor (12 points, 16 points, 20 points) could be recognized with the naked eye, and the following comparative evaluation method was performed. First, 30 panelists are selected to provide examples and comparative examples, respectively, and scores are calculated from 1 to 10 according to the evaluation items, and then based on the average of the values, very bad, bad, normal, good, very They were classified as good, and the results are shown in Table 4 below.

evaluation item practice
Example 1 practice
Example 2 compare
Example 1 compare
Example 2 compare
Example 3 compare
Example 4 compare
Example 5 compare
Example 6 compare
Example 7 compare
Example 8 compare
Example 9 Transparency very
good very
good good very
bad bad very
good very
bad good good good good

As shown in Table 4, Examples 1 and 2 showed very good transparency. Through this, the transparency of Examples 1 and 2 is affected by the average particle size, oil absorption and refractive index of the inelastic spherical silicone powder, which is the powder part, and the content of the silicone oil, which is the oil part, and the content ratio of Examples 1 and 2 is optimal for improving transparency. It was confirmed that the combination of

Comparative Example 1 showed good transparency. The elastic spherical silicone powder of Comparative Example 1 had a particle size of 12 μm, which was larger than the inelastic spherical silicone powder of Example 1, and thus had somewhat lower transparency than Example 1, but as a silicone powder, it showed compatibility with silicone oil and silicone gel to improve transparency. It was shown to be good.

On the other hand, Comparative Example 2 showed very poor transparency. Comparative Example 2 did not contain lipophilic powder or silicon (Si) in its chemical structure, so it was confirmed that compatibility with silicone oil and silicone gel was inferior to that of Example 1.

In addition, Comparative Example 3 also showed poor transparency. The inelastic spherical inorganic polymer powder used in Comparative Example 3 is silica and has a bead shape. Although silica in the form of beads used in the art contains silicon in its chemical structure, it generally exhibits hydrophilicity because a hydroxyl group (-OH) is present on the surface of the powder. Through this, it was confirmed that the compatibility with silicone oil and silicone gel was poor, indicating poor transparency.

Comparative Example 4 showed very good transparency. On the other hand, Comparative Example 5 showed very poor transparency, and Comparative Example 5 had different content ratios of inelastic spherical silicone powder, silicone oil, and silicone gel compared to Example 1. Through this, it was confirmed that the content ratio of inelastic spherical silicone powder, silicone oil, and silicone gel is a factor affecting transparency. In particular, as in Comparative Example 5, when the content ratio was more than 65% by weight, it was confirmed that the transparency of the cosmetic was reduced.

Comparative Example 6 showed good transparency. Comparative Example 6 did not add silicone oil compared to Example 1, and the content ratio of the silicone gel was different. Through this, it was found that when only the silicone gel was used, the transparency was somewhat lower than that of Example 1, but good results were obtained for the overall items.

Comparative Examples 7 to 9 showed good transparency. Through this, it was confirmed that the inclusion of the inelastic spherical silicone powder in an appropriate content ratio is important for maintaining the transparency of the solid powder cosmetic composition.

Experimental Example 3. Impact resistance evaluation

Impact resistance evaluation was performed on the cosmetic compositions of Examples and Comparative Examples prepared by Preparation Examples of the present invention. Impact resistance was evaluated through the drop stability. The drop stability was measured by horizontally free-falling the molded product three times from a height of 70 cm onto a 3 mm-thick rubber plate to evaluate the degree of play, cracking, or falling of the cosmetic, and the following comparative evaluation method was used. First, 30 panelists are selected to provide examples and comparative examples, respectively, and scores are calculated on a scale of 1 to 10 according to evaluation items, and then based on the average of the values, very bad, bad, average, good, very Table 5 shows the results by classifying them as good.

evaluation item practice
Example 1 practice
Example 2 compare
Example 1 compare
Example 2 compare
Example 3 compare
Example 4 compare
Example 5 compare
Example 6 compare
Example 7 compare
Example 8 compare
Example 9 Impact resistance (fall stability) very good very good very bad usually usually usually usually usually bad very bad bad

As shown in Table 5, Examples 1 and 2 showed very good impact resistance. On the other hand, Comparative Example 1 showed a very poor condition, and Comparative Example 1 had the same conditions as Example 1 except that elastic spherical silicone powder was used in the powder part. Through this, it was confirmed that the more the powder has elasticity, the lower the moldability and impact resistance of the cosmetic due to the restoring force during compression molding.

Comparative Examples 2 to 6 exhibited moderate impact resistance. On the other hand, Comparative Example 7 showed poor impact resistance. Comparative Example 7 compared to Example 1 had a silicone oil content of 38% by weight and did not include a silicone gel. Through this, it was confirmed that when the silicone oil was more than 15% by mass, it was difficult to maintain the form as a solid cosmetic.

Comparative Example 8 exhibited very poor impact resistance. Comparative Example 8 was prepared using the same powder and oil parts as in Example 1, but compression molding was performed by dry tableting. Through this, the tableting method affects the impact resistance, and during compression molding with dry tableting, granulation of the cosmetic occurs irregularly in the hopper, which is the supply part of the dry molding machine. It was confirmed that the impact resistance of cosmetics was affected.

Comparative Example 9 showed poor impact resistance. Comparative Example 9 was prepared using the same powder and oil parts as in Example 1, but a compression molding method was used as a wet method. Through this, it was confirmed that the tableting method affects the impact resistance.

Claims (16)

55 to 65 wt% of inelastic spherical silicone powder,
9 to 11% by weight of silicone oil and
23 to 35% by weight of silicone gel;
A solid powder cosmetic composition for extrusion tableting comprising as an active ingredient. delete The cosmetic composition of claim 1, wherein the inelastic spherical silicone powder has a refractive index of 1.35 to 1.50. The cosmetic composition of claim 1, wherein the inelastic spherical silicone powder has an average particle size of 3 to 6 um. The cosmetic composition of claim 1, wherein the inelastic spherical silicone powder has an oil absorption in the range of 50 to 90 cc/100g. delete The cosmetic composition of claim 1, wherein the silicone oil has a viscosity of 6 to 40 cSt. The cosmetic composition of claim 1, wherein the silicone oil has a refractive index of 1.35 to 1.5. delete According to claim 1, wherein the solid powder cosmetic composition will further include at least one selected from the group consisting of preservatives, fragrances and pearls. A method for producing a solid powder cosmetic composition comprising the steps of:
A powder part preparation step in which the inelastic spherical silicone powder is contained in an amount of 55 to 65% by weight based on the total solid powder cosmetic composition;
An oil part preparation step in which the silicone oil is included in an amount of 9 to 11 wt% based on the total solid powder cosmetic composition, and the silicone gel is included in an amount of 23 to 35 wt% based on the total solid powder cosmetic composition;
A manufacturing step of preparing a mixture by mixing the powder part and the oil part; and
A molding step of compression molding by tableting the mixture. delete delete delete The method of claim 11 , wherein the oil part further includes at least one selected from the group consisting of preservatives, fragrances and pearls. The method of claim 11, wherein the tableting is compression-molded by extrusion tableting.

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