KR20200029839A - Cosmetic composition comprising water-dispersible solid beads having bilayer structure and Method for producing thereof - Google Patents

Abstract

Provided is a method for manufacturing a two-layer of solid water-dispersion bead. More specifically, the present invention relates to a method for manufacturing a two-layer of solid water-dispersion bead, including a step of adding a solidifying agent into an outer portion, and adding oil to the inside while molding the same in a specific form. According to the present invention, the bead with the structure above has excellent spreadability in terms of usability compared to common beads, and has improved moisturizing effects and oiliness by being emulsified when applied to the skin, thereby securing outstanding moisturizing feeling and long-lasting effects.

Description

{Cosmetic composition comprising water-dispersible solid beads having bilayer structure and Method for producing thereof}

The present invention relates to a method for producing a solid water dispersion bead having a two-layer structure and a cosmetic composition comprising the same.

There are two general solid and bead double structures, and the method of encapsulating the capsule on the outer surface of the liquid and the method of multilayering the powder have been generally used. The former is manufactured by the purpose of injecting a specific carrier material into a thin film such as gelatin to write an inner material, and the latter is produced by a pellet method in which a nucleus is made and a layer is formed using a granulator or granulator.

For this reason, in the former case, the outer film had no effect other than the role of trapping the carrier, and the outer surface was thick, or the foreign body showed a high limit. In the latter case, the outer shape was often hard and powdery, making it difficult to increase the size of the beads. In addition, in the case of solid beads that are solidified by incorporating a solidifying agent in a general water dispersion or emulsion form, the water dispersion or oil-in-water emulsion beads are dry, stiff, and durable due to the nature of containing a large amount of oil. It showed a lot of shortcomings and needed improvement.

In this regard, Korean Patent Registration No. 10-1445902 provides a composition having a formulation in which a water-in-oil emulsion first formulation and a second formulation composed of an emulsion and a gel are physically contacted and partially mixed by shear stress. The composition exhibits limitations in terms of use or container by utilizing the method in which the first formulation is put in the second formulation.

Also, Korean Patent Publication No. 10-2011-0059396 relates to a multi-layered structure, and provides a cosmetic composition in the form of a pellet coated with a layer containing ceramide and phospholipids on the outermost side of the oil. The composition is prepared by making the oil a nucleating agent with other excipients and then surrounding the solid moisturizer.

Korean Registered Patent No. 10-1445902 Korean Patent Publication No. 10-2011-0059396

The present invention is to provide a solid water dispersion beads having a two-layer structure and a cosmetic composition comprising the beads.

However, the technical problem to be achieved by the present invention is not limited to the above-mentioned problems, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above problems, the present inventors have included a large amount of oil-soluble components therein, and as a result of earnestly researching to prepare solid water-dispersion beads having spreadability and persistence while maintaining the morphological or usable properties of emulsion beads, oil-soluble emulsifiers The present invention was completed by discovering that a solid water-dispersion bead having a two-layer structure can be produced through a process of dropping and curing the inner phase including the inner phase and the solidifying agent through the double nozzle.

Accordingly, the present invention provides a method for preparing a solid water-dispersion bead having a two-layer structure, comprising the following steps:

Preparing an inner phase comprising an oil component and a surfactant (S1);

Preparing a trauma after mixing polyhydric alcohol, a viscosity modifier, a solidifying agent, an emulsifying stabilizer or emulsifying agent, and purified water and heating to 50 to 95 ° C. to prepare a trauma; And

Simultaneously dropping the inner phase of step S1 and the re-dispersed trauma of step S2 by reheating to 70 to 95 ° C in a low-temperature solvent at -5 to 25 ° C.

In one embodiment of the present invention, the inner and outer trauma are characterized by being used in a weight ratio of 1 to 50:50 to 99.

In another embodiment of the present invention, the oil component includes triethylhexanoin, diisosteryl malmitate, and triglyceride, which are ester oils; Silicone-based trimethicone, dimethicone, phenyltrimethicone, cyclohexasiloxane, and cyclopentasiloxane; Hydrocarbon oils such as liquid paraffin, squalane, mineral oil, and triglycerin; And natural oils such as olive oil, macadamia nut oil, sunflower oil, palm oil, palm oil, and horse oil; or more.

In another embodiment of the present invention, the surfactant is characterized in that at least one selected from the group consisting of water-soluble emulsifiers such as polysorbate-based, alcohol-based, glyceryl-based, stearate-based, and oleate-based.

In another embodiment of the present invention, the viscosity modifier is one or more selected from the group consisting of gellan gum, xanthan gum, cellulose gum, starch, montmorillonite, hectoria, bentonite, silicate, kaolin, and zeolite. do.

In another embodiment of the present invention, the solidifying agent is characterized in that at least one member selected from the group consisting of carrageenan, agar, gelatin, and acacia senegal gum.

In another embodiment of the invention, the trauma is characterized in that it further comprises a powder phase.

In addition, the present invention provides a cosmetic composition comprising a solid water-dispersion beads prepared by the above manufacturing method.

The solid water-dispersion beads produced by the production method of the present invention are solid dispersion beads of water-dispersion or oil-in-water containing randomly gel- or paste-like oil-soluble components inside the beads, and the gel- or paste-like water-soluble components relatively high in weight. Containing, while maintaining the morphology or use properties of the emulsion beads, it has the effect of increasing the moisturizing power by reducing dryness while significantly improving the spreadability and persistence.

In addition, since the general water-dispersion solidifying beads do not contain an oil phase, they have poor and dry properties, and have a relatively weak lasting strength, and also have aesthetically excellent advantages because they are mixed with each other as the inner wound bursts when applied to the skin.

In addition, by enclosing the inner wound as a trauma, it is possible to sufficiently contain a water-soluble active ingredient in the trauma and a useful active ingredient in the trauma. There is an advantage of easy application.

1 is a view showing the shape of a solid water-dispersion bead prepared in the present invention, and a cross-sectional photograph of the bead.
2 is a diagram showing a solid water-dispersion beads of the present invention.
3 is a view showing a bead picture of a comparative example prepared for comparison with the solid dispersion beads prepared in the present invention.
4 is a view showing the result of confirming the problem of the use of the beads after preparing a bead containing no surfactant in the inner phase.

Hereinafter, examples and comparative examples will be described in detail to specifically describe the present invention. However, the examples and comparative examples according to the present invention may be modified in various other forms, and the scope of the present invention should not be interpreted as being limited to the examples and comparative examples described below. Examples and comparative examples of the present invention are provided to more fully describe the present invention to those skilled in the art.

The present invention is two types of trauma as shown in Table 1 below; And to provide beads of a two-layer structure formed by mixing the inner phase to form one shape. The trauma refers to an outer portion forming a solidified bead shape, and the inner trauma refers to a portion included in the solidified bead.

ingredient Content (% by weight) credit Water-dispersible cosmetic 50-99 Inner box Soluble phase with surfactant 1-50

That is, the present invention can provide a method for preparing a solid water-dispersion bead having a two-layer structure, comprising the following steps:

Preparing an inner phase comprising an oil component and a surfactant (S1);

Preparing a trauma after mixing polyhydric alcohol, a viscosity modifier, a solidifying agent, an emulsifying stabilizer or emulsifying agent, and purified water and heating to 50 to 95 ° C. to prepare a trauma; And

Simultaneously dropping the inner phase of step S1 and the re-dispersed trauma phase of step S2 by reheating to 70 to 95 ° C in a low-temperature solvent at -5 to 25 ° C (S3).

The inner and outer trauma may be included in a weight ratio of 50 to 99% by weight of the trauma (more preferably 70 to 90% by weight) and 1 to 50% by weight of the internal trauma (more preferably 10 to 30% by weight), and Likewise, it is possible to provide a cosmetic composition having an excellent feeling of use by including a large amount of an inner box.

The manufacturing method according to the embodiments of the present invention makes the cosmetic product through a step of mixing / dispersing / dissolving the trauma containing the solidifying agent (thermoreversible hardness forming agent) again at a high temperature, and traumatizing the trauma by dropping the contents at the same time as the trauma to the low temperature prime. It is to make a double solid cargo in the form of a bead that wraps around.

The trauma is a water-dispersible cosmetic, containing an appropriate amount of water (purified water), and a water phase containing a polyhydric alcohol, a thickening agent, a solidifying agent (a temperature reversible hardness forming agent), an emulsifying stabilizer or emulsifying agent, and other additives. To include. The trauma may further include a powder phase in addition to the aqueous phase. The trauma includes those containing 2 to 30% by weight of polyhydric alcohol, 0.05 to 20% by weight of a viscosity modifier, 0.5 to 3% by weight of a solidifying agent, 3% by weight of an emulsifying stabilizer or emulsifying agent, and the balance of purified water.

The polyalcohol is used for the purpose of moisturizing and solvent, it may be included in 2 to 30% by weight relative to 100% by weight of the total trauma. The polyhydric alcohol is selected from glycerin, sorbitol, mannitol, xyltol, glycolic alcohol (butylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, polyethylene glycol, etc.), propanediol, etc. It is not limited to this, as long as it is an alcohol having a plurality of hydroxy groups (Hydroxyl Group) in one molecule.

The viscosity modifier is used for the purpose of making the viscosity of water (purified water) or facilitating dispersion, and is preferably included in 0.05 to 5% by weight relative to 100% by weight of the total trauma. When the viscosity control agent is used in an amount of less than 0.05% by weight, the viscosity control effect is insignificant, so that grain formation may not be performed or separation may be seen inside, and when it exceeds 5% by weight, viscosity formation becomes too strong to form round when discharged. Without this, a burr that stretches like a water droplet may occur.

The viscosity modifier is a water-soluble polysaccharide such as gellan gum, xanthan gum, cellulose gum, starch, or a composite material containing the same; Montmorillonite, Hectorite, Bentonite, Silicate, Kaolin, Kaolin, Zeolite, and the like can be used.

The solidifying agent is a temperature-reversible hardness-forming agent, which is dissolved or dispersed in water to show flowability at high temperatures, but is used to form a bead by curing under low-temperature conditions. Carrageenan, Agar, Gelatin (Gelatin), Acacia Senegal Gum (Acacia Senegal Gum), etc. may be used. The solidifying agent is preferably included in 0.5 to 2.5% by weight relative to 100% by weight of the total trauma. When the solidifying agent is used in an amount of less than 0.5% by weight, the grains are repelled, so that a shape cannot be properly formed, and when it exceeds 3% by weight, there is no problem in taking shape, but when it is used, there is a problem in cracking or the feeling of use becomes extremely bad or In severe cases, foreign body sensation may occur.

The emulsifying stabilizer and emulsifying agent include one or more of acrylate-based polymers, metal salts and the like, or surfactants or solubilizers are mixed or mixed, such as polysorbates, sodium acrylate, and sodium acrylate / sodium acryl. Ildi methyl taurate copolymer or stearic acid, but is not limited thereto.

The emulsifying stabilizer or emulsifying agent is preferably included in 3% by weight or less based on 100% by weight of the total trauma. When the emulsifier or the emulsifier exceeds 3% by weight, encapsulated oil and swelling may occur, and when used, oil may burst and may be prevented from mixing with each other, and grain formation may be difficult.

The composition may further include a powder phase. The powder phase is talc, mica, synthetic mica, sericite, silica, titanium dioxide, silicon-based powder, boron powder, zinc oxide, nylon powder, polymethacrylate powder, urethane powder, acrylate (co) polymer, polyethylene (co) Polymers, organic pigments, inorganic pigments, pearlescent pigments, etc., contain one or more types of powders, and the powders may include those with or without hydrophilic surface treatments such as amino acids and silica, and preferably hydrophilic surface treatments. Can be used. The powder phase is preferably included in less than 25% by weight relative to 100% by weight of the total trauma. When the powder phase exceeds 25% by weight, the viscosity is too high and the dispersion is not easy, so bead formation cannot be achieved.

The internal phase is an oil-dispersible or oil-soluble phase, and may include oil components and surfactants.

The oil components include ester systems such as triethylhexanoin, diisosteryl malmitate, and triglyceride; Silicone systems such as trimethicone, dimethicone, phenyltrimethicone, cyclohexasiloxane, and cyclopentasiloxane; Hydrocarbons such as liquid paraffin, squalane, mineral oil, and triglycerin; Natural oils such as olive oil, macadamia nut oil, and sunflower oil; Oils such as palm oil, palm oil, horse oil, animal and vegetable liquids and oils can be used.

The surfactant may be a water-soluble emulsifier such as polysorbate-based, alcohol-based, glyceryl-based, stearate-based or oleate-based, but is not limited thereto.

In the embodiment of the present invention, it was confirmed that the solid water-dispersion beads containing a large amount of useful components therein, such as the present invention, have excellent repellency, resin properties, and low dryness, and are suitable for use as cosmetic compositions. Accordingly, the present invention can provide a cosmetic composition comprising a solid water-dispersion beads prepared by the above manufacturing method, and the cosmetic composition may include, in addition to the solid water-dispersion beads, components that can be generally included in the cosmetic composition without limitation. have.

Hereinafter, the present invention will be described in detail through examples. These examples are only for illustrating the present invention, it will be apparent to those skilled in the art that the scope of the present invention is not to be construed as limited by these examples.

[Example]

Hereinafter, the present invention will be described in more detail through examples. Since these examples are only for illustrating the present invention, it should not be construed that the scope of the present invention is limited by these examples.

[Examples 1 to 2 and Comparative Examples 1 to 4]

Examples 1 to 2 and Comparative Examples 1 to 4 in the preparation of the cosmetic composition for trauma, the process of dispersing or dissolving a solidifying agent in the water and mixing or dissolving water-soluble ingredients such as a viscosity modifier in purified water and polyalcohol in the components and contents shown in Table 2 below. Prepared through. In the case of including the powder phase in the above manufacturing method, it was completed by dispersing the powder phase before dispersing the solidifying agent.

division ingredient Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Awards Purified water to 100 to 100 to 100 to 100 to 100 to 100 Polyhydric alcohol 10.00 15.00 10.00 10.00 10.00 10.00 Viscosity modifier 0.45 0.50 0.45 0.45 0.45 0.45 Solidifying agent (temperature reversible hardness forming agent) 1.00 1.10 1.00 1.00 - 3.00 Emulsification stabilizer and emulsifier 0.05 0.05 0.05 0.05 0.05 0.05 Other additives Proper Proper Proper Proper Proper Proper In powder form Hydrophobic and aqueous surface treatment - - 13.00 - - - Hydrophilic and hydrophilic surface treatment 13.00 - - 25.00 13.00 13.00

In this example, R.T. Vanderbilt's Magnesium Aluminum Silicate and KELCO's Xanthan Gum were used. As solidifying agent, INA FOOD INDUSTRY or APT supplied by KPT was used. As other additives, preservatives, metal ion blockers, and water-soluble functional raw materials may be used.

In addition, the hydrophobic or hydrophobic surface-treated powder phases in Examples and Comparative Examples used triethoxycaprylylsilane, dimethicone, fatty acid-treated powder and methyl methacrylate cross polymer, and hydrophilic or hydrophilic surface treatment. As the powder phase, a surface treated with a composite of silica and silica and polymethylsilsesquioxane, including titanium dioxide, iron oxide, and silica, which were not surface-treated, was used .

Evaluation of Examples 1 to 2 and Comparative Examples 1 to 4 was performed through visual evaluation and usability evaluation. The dispersibility and beadability were evaluated visually during the manufacturing and molding process, and the beadability was only limited to the possibility of emulsification. Bead breakage was evaluated in three stages of excellent-normal-bad based on the degree of cracking, debris generation, and spread when the beads were spread over 10 panels between 25 and 40 years old. . Table 3 shows the results.

division ingredient Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 evaluation Scatterability possible possible Impossible possible possible possible Bead Formability possible possible - Impossible Impossible possible Bead break Great Great - - - Bad

As shown in Table 3, it is possible to manufacture without any problem in dispersion during manufacturing in Example 2, which uses a hydrophilic or hydrophilic surface-treated powder phase or without a powder phase, including Example 1, which is a trauma composition prepared by the method of the present invention. However, as in Comparative Example 2, in the case of containing a large amount of the hydrophilic or hydrophilic surface-treated powder phase in 25% by weight, and in Comparative Example 3 without using a solidifying agent, it was confirmed that beads were not formed, and comparison using a large amount of the solidifying agent In Example 4, it was confirmed that dispersion is possible and the beads are well formed, but when the formed beads are spread, the cracking phenomenon is insufficient, the feeling of foreign body is severe, and it is difficult to spread, resulting in poor usability.

[Examples 3 to 4 and Comparative Examples 5 to 8]

In the preparation of the cosmetic composition, Examples 3 to 2 and Comparative Examples 5 to 8 were prepared through the process of solidifying beads with the components and contents of Table 4 below. The above manufacturing method after heating the trauma to 70 to 95 ° C (more specifically, 70 to 80 ° C), by free-falling through the trauma nozzle surrounding the trauma nozzle, at the same time, the trauma surrounds the trauma, -5 to 25 ° C (more Specifically, it was prepared by dropping in a low temperature solvent having a temperature of 0 to 5 ° C) and curing (solidifying). The surfactant-free oil-soluble phase was a mixture of silicone oil, ester oil, and vegetable oil 8: 1: 1, and the oil-soluble phase containing surfactant was silicone oil, ester oil, vegetable oil, and surfactant 7: Mixing 1: 1: 1 was used. The silicone oil was used in combination with phenyltrimethicone, cyclopentasiloxane, and dimethicone, and the ester oil used in combination with butylene glycol dicaprylate dicaprate and dicaprylyl carbonate, and the vegetable oil was Jojoba seed oil, sunflower seed oil, and surfactants were mixed with PEG-10 dimethicone and Cetyl PEG / PPG-10 / 1 Dimethicone.

division Configuration Example 3 Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 credit Example 1 75.00 - 100.00 - 49.00 - - Example 2 - 75.00 - 100.00 - 49.00 75.00 Inner box Soluble phase without surfactant - - - - - - 25.00 Soluble phase with surfactant 25.00 25.00 0.00 0.00 51.00 51.00 -

The shape of the beads prepared according to Example 3 is shown in FIG. 1, and it can be confirmed that an oil layer was formed inside the aqueous dispersion layer as shown in FIG. 2. In addition, FIG. 3 shows the shape of the beads prepared in the comparative example (left: comparative example 7, right: comparative example 3), when the number of pigments was too large, the shape did not come out well, and when there were many oils, the shape was Even though it was made, the stability was unstable due to the large number of internal injuries compared to the trauma. Fig. 4 shows the results confirming the usability of Comparative Example 9, but shows that there is a problem in usability when a surfactant is not included in the inner phase.

Evaluation of Examples 3 to 4 and Comparative Examples 5 to 8 was performed through visual evaluation and usability evaluation. The possibility of bead forming was evaluated based on the circular molding without any bursting or shape change with the naked eye during the molding process, and the bead cracking and usability evaluation were conducted for 12 panelists between 25 and 40 years of age with very good-excellent-normal-bad ( Low) It evaluated in 4 steps, and evaluated only for bead molding.

division Configuration Example 3 Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 evaluation Bead Formability O O O 0.00 Impossible Impossible possible Bead breaking degree Very good Very good Very good Very good - - Very good Internal and external trauma level Very good Very good - - - - Bad Spreading property (moist, spreading, etc.) Very good Very good lack lack - - - Resin properties Very good Great usually Very short - - - Dryness lowness lowness Very high Very high - - -

As can be seen in Table 5, in Comparative Examples 7 and 8 having a composition exceeding the inner phase content suggested in the present invention, beads were not properly formed, and in Comparative Examples 5 and 6 without inner phase, the spreadability was poor and the dry feeling was very high. It was confirmed that it cannot be used as a cosmetic. In addition, in the case of Comparative Example 9, which does not contain a surfactant on the inner side, it showed a problem that the beads do not mix with each other after being broken.

Although the preferred embodiments of the present invention have been described in detail above, the rights of the present invention are not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (8)

Method for producing a solid water dispersion beads of a two-layer structure, comprising the following steps:
Preparing an inner phase comprising an oil component and a surfactant (S1);
Preparing a trauma by mixing polyhydric alcohol, a viscosity modifier, a solidifying agent, an emulsifying stabilizer or emulsifying agent, and purified water, heating to 50 to 95 ° C., and dispersing it (S2); And
Simultaneously dropping the inner phase of step S1 and the re-dispersed trauma of step S2 by reheating to 70 to 95 ° C in a low-temperature solvent at -5 to 25 ° C (S3).
According to claim 1,
The inner and outer trauma is characterized in that it is used in a weight ratio of 1 to 50: 50 to 99, a method for producing a solid water dispersion beads of a two-layer structure.
According to claim 1,
The oil components include ester-based triethylhexanoin, diisosteryl malmitate, and triglyceride; Silicone-based trimethicone, dimethicone, phenyltrimethicone, cyclohexasiloxane, and cyclopentasiloxane; Hydrocarbon oils such as liquid paraffin, squalane, mineral oil, and triglycerin; And natural oils of olive oil, macadamia nut oil, sunflower oil, palm oil, palm oil, and horse oil; characterized in that at least one member selected from the group consisting of, the method for producing a solid dispersion beads of a two-layer structure.
According to claim 1,
The surfactant is at least one selected from the group consisting of polysorbate-based, alcohol-based, glyceryl-based, stearate-based, and oleate-based water-soluble emulsifiers. Way.
According to claim 1,
The viscosity modifier is one or more selected from the group consisting of gellan gum, xanthan gum, cellulose gum, starch, montmorillonite, hectoria, bentonite, silicate, kaolin, and zeolite, solid dispersion of a bi-layer structure Method of manufacturing beads.
According to claim 1,
The solidifying agent is characterized in that at least one member selected from the group consisting of carrageenan, agar, gelatin, and acacia senegal gum, a method for producing a solid water-dispersion beads having a two-layer structure.
According to claim 1,
The trauma is characterized in that it further comprises a powder phase, a method for producing a solid dispersion beads of a two-layer structure.
A cosmetic composition comprising solid dispersion beads prepared by the method of claim 1.

Images