KR102518580B1 - Water in oil comsmetic composition and dispersing method for the same - Google Patents

Abstract

Dispersing a first emulsion stabilizer containing disteadimonium hectorite and cyclopentasiloxane; and the dispersed first emulsion stabilizer, and selected from the group consisting of lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PG/PPG-10/1 dimethicone, and PEG-10 dimethicone It relates to a method for dispersing a water-in-oil cosmetic composition comprising the step of dispersing at least one second emulsion stabilizer to obtain a disteadimonium hectorite gel, and to a water-in-oil cosmetic composition dispersed accordingly.

Description

Water-in-oil cosmetic composition and its dispersion method {WATER IN OIL COMSMETIC COMPOSITION AND DISPERSING METHOD FOR THE SAME}

The present invention relates to a water-in-oil cosmetic composition and a method for dispersing the same.

Water in oil (W/O) cosmetics show better effects than oil in water (O/W) cosmetics in terms of moisturizing power, shielding power, and stabilization of water-soluble active substances on the skin. However, since raw materials for stabilizing oil, which is a continuous phase of water-in-oil cosmetics, are limited, difficulties exist in their manufacture and development.

Disteardimonium hectorite, which is used to stabilize the emulsion system by increasing the viscosity of the continuous phase of water-in-oil cosmetics, is produced by reacting hectorite, a type of smectite, with a quaternary ammonium salt. It has been widely used in the cosmetic industry as an oil thickening additive.

Typically, disteadymonium hectorite exists in the form of clay platelets with long-chain organic compounds bound on both sides. When the hydroxyl groups present at the edge of the clay plate combine through hydrogen bonds, a gel structure is formed, and viscosity is formed in the emulsification system to stabilize the emulsification system.

However, disteadymonium hectorite is affected by numerous factors in the formulation, such as pH, type of surfactant, electrolyte, degree of physical agitation, etc. in the manufacture of general cosmetics, and there is variation in viscosity of the formulation, so that a composition of homogeneous quality can be obtained. It was difficult to manufacture, and it was difficult to maintain the stability of the formulation.

In addition, when using a homo mixer or an aji mixer used in the manufacturing process of general water-in-oil cosmetics, the clay plates of disteadymonium hectorite are not sufficiently swollen in the form of agglomerated powder or swell too early, so that the surfactants are properly dispersed. As a result, there were problems in that the internal aqueous phase became unstable or other components were not sufficiently dispersed.

The present invention uses disteadymonium hectorite to increase the viscosity of oil, which is a continuous phase of a water-in-oil cosmetic, to stabilize the emulsion system, while disteadymonium hectorite in the form of a clay plate is uniformly dispersed with other ingredients, It is an object of the present invention to provide a water-in-oil cosmetic composition and a method for dispersing a water-in-oil cosmetic composition in which the stability of the formulation is maintained over time.

Dispersing a first emulsion stabilizer containing disteadimonium hectorite and cyclopentasiloxane; and

Selected from the group consisting of the dispersed first emulsion stabilizer and lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PG/PPG-10/1 dimethicone and PEG-10 dimethicone It provides a method for dispersing a water-in-oil cosmetic composition comprising the steps of dispersing at least one second emulsion stabilizer to obtain a disteadymonium hectorite gel.

In addition, the present invention is a first emulsion stabilizer containing disteadimonium hectorite and cyclopentasiloxane; and a second emulsion stabilizer that is at least one selected from the group consisting of lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PG/PPG-10/1 dimethicone, and PEG-10 dimethicone; As a water-in-oil cosmetic composition comprising a, after the first emulsifier is dispersed, it provides a water-in-oil cosmetic composition in which the second emulsifier is dispersed together with the first emulsifier.

In the method for dispersing the water-in-oil cosmetic composition according to the present invention, disteadimonium hectorite is sequentially dispersed together with cyclopentasiloxane and PEG-10 dimethicone, so that disteadymonium hectorite in the form of a clay plate is partially dispersed. to form a swollen disteadymonium hectorite gel. This disteadymonium hectorite gel is added to the oil phase component, and the hydroxyl groups present at the edges of the clay plate in the partially swollen disteadimonium hectorite form crosslinks through hydrogen bonds, thereby forming clay platelets. The gap between them forms a completely widened gel structure. Therefore, the dispersion method of the water-in-oil cosmetic composition according to the present invention is a water-in-oil cosmetic composition of a formulation in which disteadymonium hectorite is not aggregated but uniformly dispersed even though the emulsion system is stabilized by forming a viscosity in the emulsification system. It provides a water-in-oil cosmetic composition in which the stability of the formulation is maintained for a long time even over time.

1 is a photograph of the disteadimonium hectorite gel obtained in Preparation 1 immediately after preparation, the one shown on the right is the disteadimonium hectorite gel of Comparative Example 1, and the one shown on the left is Example 1 of disteadimonium hectorite gel.
Figure 2 is a graph showing the change in hardness of the disteadymonium hectorite gel of Example 1 and Comparative Example 1 obtained in Preparation 1 from immediately after preparation to 2 weeks after preparation.
Figure 3 is a photograph taken one week after the preparation of the water-in-oil cosmetic composition obtained in Production 2, the one shown on the left is the water-in-oil cosmetic composition of Comparative Example 2, and the one shown on the right is the water-in-oil cosmetic of Example 2 is a composition
Figure 4 is a water-in-oil cosmetic composition obtained in Preparation 2 after undergoing a cold-thawing process and photographed 3 days after preparation, the one shown on the left is the water-in-oil cosmetic composition of Comparative Example 2, and the one shown on the right This is the water-in-oil cosmetic composition of Example 2.

Hereinafter, the water-in-oil cosmetic composition and the dispersion method of the water-in-oil cosmetic composition of the present invention will be described in detail.

In the present specification, the water in oil (W/O) type means an emulsion formulation in which the continuous phase is an oil phase and the dispersed phase is an aqueous phase.

In the present specification, the emulsion formulation refers to a formulation in which a dispersed phase including one or more liquid phases is dispersed in a droplet form in a continuous phase including one or more liquid phases.

Dispersion step of the first emulsion stabilizer (S10)

The method for dispersing the water-in-oil cosmetic composition of the present invention includes dispersing a first emulsion stabilizer (S10). Through the dispersing step (S10) of the first emulsion stabilizer, in disteadimonium hectorite, physical energy partially widens the gaps between the clay plates.

The first emulsion stabilizer according to the present invention includes disteadimonium hectorite and cyclopentasiloxane. The cyclopentasilonic acid is dispersed together with disteadymonium hectorite in a water-in-oil cosmetic composition, thereby suppressing an excessive increase in viscosity to give the cosmetic composition a light feeling of use.

In one embodiment of the present invention, the content of the disteadimonium hectorite is 8% to 13% by weight based on the weight of the disteadimonium hectorite gel. If the content of the disteadymonium hectorite is less than 8% by weight, the clay plates of the disteadymonium hectorite may be excessively spaced apart from each other due to cross-linking and may not form a gel, and if it is more than 13% by weight, distea The partial swelling of Disteadymonium hectorite is reduced due to excessive agglomeration of the clay plates of Dimonium hectorite.

In one embodiment of the present invention, the content of the cyclopentasiloxane is 55% to 75% by weight based on the weight of the disteadymonium hectorite gel. If the content of the cyclopentasiloxane is less than 55% by weight, the clay plates of Disteadimonium hectorite are excessively aggregated and the partial swelling of Disteadimonium hectorite is reduced, and if it is more than 75% by weight, the disteadimonium hectorite The concentration of the clay platelets of hectorite is excessively lowered, so that the cross-link formation of the clay platelets is lowered.

In one embodiment of the present invention, the step of dispersing the first emulsion stabilizer includes a step (S11) of immersing a stirring mechanism having a fixed rotating shaft in the first emulsion stabilizer to rotate about the rotating shaft.

In the present specification, that the axis of rotation is fixed means that only rotational motion is performed without changing the position of the axis of rotation in space.

In the present specification, the stirring mechanism is not limited as long as it is connected to the rotational shaft and can transmit the rotational force of the rotational shaft to the material to be stirred, and specifically, may be one or more blades, and two or more blades may be connected to each other, It may also be an impeller.

In one embodiment of the present invention, the step (S11) of rotating the stirring mechanism to which the rotating shaft is fixed is performed using a homogenizer.

In one embodiment of the present invention, in the step (S11) of rotating the stirring mechanism to which the rotating shaft is fixed, the rotational speed of the stirring mechanism is 3000 rpm to 7000 rpm. If the rotational speed of the stirring mechanism is less than 3000 rpm, sufficient space for the dispersion solvent to penetrate is not secured between the clay plates of the disteadymonium hectorite, so that the clay plates do not swell uniformly. , when it exceeds 7000 rpm, the promotion of swelling of the clay platelets is insufficient.

In one embodiment of the present invention, the step (S11) of rotating the stirring mechanism to which the rotating shaft is fixed is performed for 3 to 5 minutes. If the time for rotating the stirring mechanism to which the rotating shaft is fixed (S11) is less than 3 minutes, sufficient space is secured between the clay plates of the Disteadymonium hectorite for the dispersion solvent to penetrate Otherwise, the swelling of the clay plates does not occur uniformly, and if it is less than 5 minutes, the promotion of swelling of the clay plates is insufficient.

In one embodiment of the present invention, the step (S11) of rotating the stirring mechanism to which the rotating shaft is fixed is performed at a temperature of the stirring mechanism from 25 °C to 60 °C. If the temperature of the stirring mechanism is higher than 60° C., the dispersing solvent may evaporate.

Dispersion step of adding a dispersion solvent of the first emulsion stabilizer (S20)

In one embodiment of the present invention, the dispersing of the first emulsion stabilizer (S10) further includes adding a dispersing solvent to the first emulsion stabilizer and dispersing (S20). Through the dispersion solvent addition and dispersion step (S20) of the first emulsion stabilizer, disteadymonium hectorite invades the dispersion solvent in the formulation, and physical energy partially widens the gaps between the clay plates. make it easy

In one embodiment of the present invention, the dispersion solvent is water, ethanol or a mixture thereof. When the dispersing solvent is water, ethanol, or a mixture thereof, the viscosity does not increase excessively during dispersing, and the dispersing mechanism facilitates dispersing.

In one embodiment of the present invention, the content of the dispersion solvent is 40% to 60% by weight based on the total weight of the composition. If the content of the dispersion solvent is less than 40% by weight, only a part of the gap between the clay plates of disteadimonium hectorite is spaced apart, and swelling does not occur sufficiently, and if it exceeds 60% by weight, disteadimonium due to the dispersion solvent Since the formation of hydrogen bond bridges at the hydroxyl groups at the edges of the clay plates of hectorite is inhibited, the disteadymonium hectorite gel does not form a card house structure and the viscosity is lowered.

In one embodiment of the present invention, the step of adding and dispersing a dispersion solvent to the first emulsion stabilizer (S20) is to immerse a stirring mechanism having a fixed rotating shaft in the first emulsion stabilizer to rotate around the rotating shaft Step S21 is included.

In one embodiment of the present invention, in the step (S21) of rotating the stirring mechanism to which the rotating shaft is fixed, the rotational speed of the stirring mechanism is 3000 rpm to 4000 rpm. If the rotational speed of the stirring mechanism is less than 3000 rpm, the first emulsion stabilizer is not sufficiently dispersed, and if it exceeds 4000 rpm, the viscosity is excessively increased and the stirring efficiency is lowered.

In one embodiment of the present invention, the step (S21) of rotating the stirring mechanism to which the rotating shaft is fixed is performed for 3 to 5 minutes. If the performing time of rotating the stirring mechanism (S21) to which the rotating shaft is fixed is less than 3 minutes, the dispersion solvent is eluted from the formulation in a short time, and if it is more than 5 minutes, the stability of the dispersion solvent is insufficiently improved.

In one embodiment of the present invention, the step (S21) of rotating the stirring mechanism to which the rotating shaft is fixed is performed at a temperature of the stirring mechanism from 25 °C to 40 °C. When the temperature of the stirring mechanism is higher than 40°C, the dispersing solvent evaporates.

disteadymonium hectorite gel Obtaining step (S30)

The dispersing method of the water-in-oil cosmetic composition of the present invention includes the step of dispersing the first emulsion stabilizer and the second emulsion stabilizer dispersed by performing one or more of the above steps to obtain a disteadymonium hectorite gel (S30) include Through the step of obtaining the disteadimonium hectorite gel (S30), the disteadimonium hectorite gel is infiltrated into the dispersion solvent in the formulation, and then the physical energy is transferred between each clay plate. partly widens the gaps.

The second emulsion stabilizer according to the present invention is selected from the group consisting of lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PG/PPG-10/1 dimethicone and PEG-10 dimethicone. more than one

In one embodiment of the present invention, the second emulsion stabilizer is PEG-10 dimethicone. When the second emulsion stabilizer is PEG-10 dimethicone, the hardness of the dispersed disteadymonium hectorite gel becomes 100 N or more, and the formulation stability of the gel is improved.

In one embodiment of the present invention, the content of the second emulsion stabilizer is 18% to 22% by weight based on the weight of the disteadymonium hectorialate gel. If the content of the second emulsion stabilizer is less than 18% by weight, stability of the formulation may deteriorate, and if the content of the second emulsion stabilizer is greater than 22% by weight, stability improvement of the formulation may deteriorate.

In one embodiment of the present invention, in the step of obtaining the disteadymonium hectorite gel (S30), a stirring mechanism capable of revolving rotational axis is immersed in the first emulsion stabilizer and the second emulsion stabilizer so that the rotational axis is and an orbital rotation step (S31) of rotating the stirring mechanism around the rotation axis while revolutionizing.

In the present specification, the fact that the rotational axis can revolve means that the rotational axis is capable of rotational movement around the rotational axis while moving along a set trajectory in space.

The step of obtaining the disteadymonium hectorite gel (S30) is performed during the revolution rotation step (S31) in which the stirring mechanism rotates about the rotation axis, so unlike the case where the stirring mechanism rotates without revolution, A water-in-oil cosmetic composition having a hardness of 40 N or more can also be dispersed.

In one embodiment of the present invention, the step of obtaining the disteadymonium hectorite gel (S30) is performed using a planetary mixer.

In one embodiment of the present invention, in the orbiting rotation step (S31), the orbital speed of the stirring mechanism is 50 rpm to 100 rpm. When the revolution speed of the agitation mechanism is 50 rpm or less, the dispersion fluid rotates along with the revolution of the agitation mechanism, and the agitation efficiency is reduced.

In one embodiment of the present invention, the idle rotation step (S32) is performed for 5 to 10 minutes. If the time for performing the orbiting step (S32) is less than 5 minutes, the disteadymonium hectorite may not be completely dispersed and may exist in an agglomerated state in the form of a powder, and if it exceeds 10 minutes, the degree of dispersion is improved incomplete

In one embodiment of the present invention, the idle rotation step (S32) is performed at a temperature of the stirring mechanism of 25 ℃ to 60 ℃. If the temperature of the stirring mechanism is less than 60°C, the dispersing solvent will evaporate.

Dispersion of oil phase components (S40)

In one embodiment of the present invention, the dispersing method of the water-in-oil cosmetic composition further includes adding and dispersing the obtained disteadymonium hectorite gel to the oily component (S40).

When the disteadimonium hectorite gel obtained through the dispersion step of the oil phase component (S40) is added to the oil phase component, the partially swollen disteadymonium hectorite is attached to both sides of the clay plates Gaps of organic compounds disteadymonium The hectorite gel forms a viscosity in the emulsification system to stabilize the emulsification system, while disteadimonium hectorite forms a uniformly dispersed formulation rather than an aggregated form.

In one embodiment of the present invention, the content of the oil component is 15% to 25% by weight based on the total weight of the composition. If the content of the oil component is less than 15% by weight, the stability of the composition is not good or the viscosity is too high, so when applied to the skin, the feeling of use is heavy, and the usability is reduced due to stickiness, and if it exceeds 25% by weight, formulation stability is inhibited.

In one embodiment of the present invention, the oily component is vegetable oil such as rosehip oil, safflower oil, peach seed oil, meadowfoam seed oil, sunflower seed oil, dicaprylyl carbonate, squalane, neopentyl glycol diheptide Thanoate, Tocopheryl Acetate, Trioctanoin, C12-15 Alkylbenzoate, C12-15 Alkylethylhexanoate, Octyldodecyl Myristate, Tricaprylin, Octyldodecylstearoylstearate, Bis-Hyde Roxyethoxypropyl Dimethicone, Caprylic.Capric Triglyceride, Isotridecyl Isononanoate, Polyglyceryl-2 Triisostearate, Diisostearyl Malate, Dipentaerythrite Paty Acid Ester, Cetyl Synthetic esters or hydrocarbons such as octanoate and ozokerite, silicone oils such as phenyltrimethicone, cyclomethicone, dimethicone, and decamethylcyclopentasiloxane, fatty alcohols, fatty acids and higher It is at least one selected from the group consisting of alcohol.

In one embodiment of the present invention, the step of dispersing the oil phase component (S40) is to immerse a stirring mechanism having a fixed rotating shaft in the disteadymonium hectorite gel and the oil phase component and rotate about the rotating shaft (S41) is included.

In one embodiment of the present invention, in the step (S41) of rotating the stirring mechanism to which the rotating shaft is fixed, the rotational speed of the stirring mechanism is 3000 rpm to 4000 rpm. If the rotational speed of the stirring mechanism is less than 3000 rpm, the first emulsion stabilizer is not sufficiently dispersed, and if it exceeds 4000 rpm, the viscosity is excessively increased and the stirring efficiency is lowered.

In one embodiment of the present invention, the step (S41) of rotating the stirring mechanism to which the rotating shaft is fixed is performed for 3 to 5 minutes.

In one embodiment of the present invention, the step (S41) of rotating the stirring mechanism to which the rotating shaft is fixed is performed at a temperature of the stirring mechanism of 50 °C to 60 °C.

Mixing step of aqueous phase components (S50)

In one embodiment of the present invention, the method for dispersing the water-in-oil cosmetic composition further includes mixing water-phase components (S50).

In one embodiment of the present invention, the aqueous phase component is purified water, propylene glycol, 1,3-butylene glycol and glycerin, 1,3-PG (propylene glycol), sorbitol, xylitol, hexylene It is at least one selected from the group consisting of glycol (hexylene glycol), pentylene glycol, caprylyl glycol, other various polyethylene glycols (PEGs), and various polysaccharides.

In one embodiment of the present invention, the content of the aqueous phase component is 45% to 65% by weight based on the total weight of the composition. If the content of the aqueous phase component is less than 45% by weight, the viscosity is excessively lowered and the stability of the formulation is lowered, and if it is greater than 65% by weight, the internal aqueous phase is excessively increased and the viscosity is excessively increased during transport of the aqueous phase component, so that the emulsion Particle formation is lowered, and the stability of the formulation is lowered due to the non-emulsified aqueous phase components.

In one embodiment of the present invention, the mixing of the aqueous phase component (S50) includes a step (S51) of immersing a stirring mechanism having a fixed rotating shaft in the aqueous phase component to rotate about the rotating shaft.

In one embodiment of the present invention, in the step (S51) of rotating the stirring mechanism to which the rotating shaft is fixed, the rotational speed of the stirring mechanism is 3000 rpm to 4000 rpm. If the rotational speed of the agitating mechanism is less than 3000 rpm, the dispersion fluid does not pass through the rotating agitating mechanism and dispersion is reduced, and if it exceeds 4000 rpm, improvement in the degree of dispersion is insufficient.

In one embodiment of the present invention, the step (S51) of rotating the stirring mechanism to which the rotating shaft is fixed is performed for 3 to 5 minutes.

In one embodiment of the present invention, the step (S41) of rotating the stirring mechanism to which the rotating shaft is fixed is performed at a temperature of the stirring mechanism from 50 °C to 80 °C.

Mixing step of water phase components and oil phase components (S60)

In one embodiment of the present invention, the method of dispersing the water-in-oil cosmetic composition further includes mixing the aqueous phase component and the oil phase component (S60).

In one embodiment of the present invention, the step of mixing the aqueous phase component and the oil phase component (S60) is the step of immersing a stirring mechanism having a fixed rotating shaft in the aqueous phase component and the oil phase component to rotate about the rotating shaft. (S61) is included.

In one embodiment of the present invention, in the step (S61) of rotating the stirring mechanism to which the rotating shaft is fixed, the rotational speed of the stirring mechanism is 3000 rpm to 4000 rpm. If the rotational speed of the agitating mechanism is less than 3000 rpm, the dispersion fluid does not pass through the rotating agitating mechanism and dispersion is deteriorated, and if it exceeds 4000 rpm, the viscosity becomes excessively high during transport of the water phase part, so the formation of emulsified particles is reduced. , the stability of the formulation is lowered due to the non-emulsified aqueous phase components.

In one embodiment of the present invention, the step (S61) of rotating the stirring mechanism to which the rotating shaft is fixed is performed for 3 to 5 minutes.

In one embodiment of the present invention, the step (S61) of rotating the stirring mechanism to which the rotating shaft is fixed is performed at a temperature of the stirring mechanism from 60 °C to 80 °C.

water-in-oil type cosmetics Supporting the composition (S70)

In one embodiment of the present invention, the method of dispersing the water-in-oil cosmetic composition further includes the step of supporting the water-in-oil cosmetic composition on a sponge (S70).

The “sponge” may be a natural sponge or a synthetic sponge, and the “natural” sponge may be, for example, a sponge sponge or a natural rubber sponge. In addition, the synthetic sponge is, for example, expanded urethane foam, butadiene rubber (BR), styrene-butadiene rubber (SBR), NR (Natural Rubber), chloroprene rubber (CR), butyl rubber (isoprene-isobutylene rubber: IIR) , isoprene rubber (IR), vulcanized ethylene-propylene rubber (EPR), polysulfide rubber, silicone rubber, fluororubber, urethane rubber, acrylic rubber ), EPDM (Ethylene propylene diene monomer) rubber, polyvinyl alcohol (PVA), nitrile rubber (Nitrile Rubber), and ethylene vinyl acetate (EVA) may include one or more selected from the group consisting of. When the composition is supported on a sponge, dispersion stability in which aqueous phase components and oil phase components are not separated is increased.

Hereinafter, the present invention will be described in more detail by way of examples. However, these embodiments are only intended to specifically describe the present invention, and the scope of the present invention is not limited by these embodiments.

< manufacturing example 1> disteadymonium hectorite gel manufacturing

Disteadimonium hectorite gel capable of dispersing a water-in-oil cosmetic composition was obtained according to the composition of Table 1 and the following description.

ingredient Content (% by weight) 1st Emulsion Stabilizer Disteadymonium hectorite 11 cyclopentasiloxane 62.5 dispersing solvent Ethanol/water solvent (volume ratio: 95/5) 5.5 2nd emulsion stabilizer PEG-10 Dimethicone 21

* Unit of content: % by weight relative to the total weight of disteadymonium hectorite gel

After adding disteadymonium hectorite to cyclopentasiloxane, using a homomixer manufactured by PRIMIX Corporation under the trade name T.K HOMOMIXER MARK Ⅱ, the stirring mechanism was rotated at 8000 rpm for 3 minutes at a temperature of 25 ° C. First emulsion stabilizer was distributed.

While continuously dispersing the dispersed first emulsion stabilizer using the homomixer at a rotational speed of a stirring mechanism of 4000 rpm or less, an ethanol/water mixture (volume - ethanol:water = 95:5) as a dispersing solvent is being dispersed. 1 After adding the emulsion stabilizer, the first emulsion stabilizer was dispersed together with the dispersion solvent at a temperature of 25° C. for 5 minutes at a rotational speed of a stirring mechanism of 4000 rpm using the homo mixer.

After the first emulsifier dispersed with the dispersion solvent is transferred to an orbital mixer under the trade name HIVIS DISPER MIXER (2P-1) manufactured by PRIMIX Corporation, the orbital speed of the stirring mechanism of the orbital mixer at a temperature of 25 ° C. Disteadymonium hectorite gel of Example 1 was obtained by continuously dispersing at 100 rpm and rotational speed of 100 rpm, adding PEG-10 dimethicone as a second emulsion stabilizer and dispersing for 5 minutes or more.

In addition, in order to compare with Example 1, the first emulsifier and the second emulsifier dispersed together with the dispersing solvent were stirred for 3 minutes at a rotational speed of the stirring mechanism at 8000 rpm using a homomixer instead of a rotating mixer. Disteadimonium hectorite gel of Comparative Example 1 was obtained by dispersing in the same manner as in Example 1 except for the above.

< test example 1> disteadymonium hectorite gel observe

The disteadimonium hectorite gels of Example 1 and Comparative Example 1 were photographed immediately after preparation and are shown in FIG. 1 .

Referring to FIG. 1, it can be seen that the disteadimonium hectorite gel of Comparative Example 1 shown on the right side is present in a powder form because the disteadimonium hectorite is not completely dispersed, and the surface of the gel is heterogeneous. can confirm that

On the other hand, in the disteadimonium hectorite gel of Example 1 shown on the left side of FIG. 1 , disteadimonium hectorite coagulated in powder form could not be confirmed, and it could be confirmed that the surface of the gel was homogeneous.

In addition, after the observation, the hardness of the disteadymonium hectorite gel of Example 1 and Comparative Example 1 was measured at room temperature for 2 weeks at 25 ° C. and 1 atm under the condition of a trade name Sun Rheo Meter manufactured by Sun Scientific Co., LTD. The hardness change was observed by measuring using a phosphorus hardness machine, and the results are shown in FIG. 2 .

The disteadimonium hectorite gel of Example 1 not only has a higher hardness immediately after preparation than the disteadimonium hectorite gel of Comparative Example 1, but also the disteadymonium hectorite gel of Example 1 has a high hardness even after 2 weeks of preparation. While there is almost no change in hardness, the disteadimonium hectorite gel of Comparative Example 1 immediately after preparation has a lower hardness than the disteadimonium hectorite gel of Example 1, and the hardness continues to decrease from 1 day after preparation can confirm that

< manufacturing example 2> water-in-oil type cosmetics Dispersion and Preparation of Compositions

A disteadymonium hectorite gel was obtained in the same manner as in Example 1 of Preparation Example 1, except for the composition shown in Table 2 below.

Rotational speed of the stirring mechanism at a temperature of 70 ° C. using a homomixer under the trade name T.K HOMOMIXER MARK Ⅱ manufactured by PRIMIX Corporation after adding an oil phase component to the obtained disteadymonium hectorite gel according to the composition of Table 2 below was dispersed at 3500 rpm for 3 minutes. In addition, according to the composition of Table 2 below, the aqueous phase components were mixed for 3 minutes at a rotational speed of the stirring mechanism at 3500 rpm at a temperature of 70 ° C. using a separate homomixer identical to the homomixer. The water-in-oil cosmetic of Example 2 was mixed with the dispersed oil phase component and the mixed aqueous phase component using the homomixer for 3 minutes while continuously changing the rotational speed of the stirring mechanism from 3500 rpm to 500 rpm at a temperature of 70 ° C. A composition was obtained.

ingredient Content (% by weight)
Disteadymonium Hectorite Gel
1st Emulsion Stabilizer
Disteadymonium hectorite 2.1 cyclopentasiloxane 6.25 dispersing solvent Ethanol/water solvent (volume ratio: 95/5) 1.1 2nd emulsion stabilizer PEG-10 Dimethicone 2.1 water ingredient





Purified water 54.79 Disodium EDT 0.05 glycerin 15 magnesium sulfate 0.8 cacao extract 0.1 phenoxyethanol 0.07 Ethylhexylglycerin 0.04 oily ingredients






Pentaerythrityl tetraethylhexanoate 2 Medufoam Seed Oil 3.5 Diisostearyl Maleate 1.5 ozokerite 0.4 PEG-30 Dipolyhydroxystearate One Pentaerythrityl tetraisostearate 3 Octamethyltrisiloxane/dimethicone 6 Cetyl Dimethicone Copolyol 0.2

* Unit of content: % by weight relative to the total weight of the water-in-oil cosmetic composition

In addition, in order to compare with Example 2, instead of obtaining and adding disteadymonium hectorite gel, the first emulsion stabilizer, the dispersion solvent and the second emulsion stabilizer according to the composition of Table 2 were directly added to the oil phase component A disteadymonium hectorite gel was obtained in the same manner as in Example 1 of Preparation Example 1, except for the addition.

< test example 2> water-in-oil type cosmetics observation of the composition

One day after preparing the water-in-oil cosmetic compositions of Example 2 and Comparative Example 2, the hardness was measured at 25 ° C. and 1 atm using a hardness tester manufactured by Sun Scientific Co., LTD under the trade name Sun Rheo Meter, The results are shown in Table 3 below.

Water-in-oil cosmetic composition Hardness Example 2 21N Comparative Example 2 14N

In addition, the water-in-oil cosmetic compositions of Example 2 and Comparative Example 2 were photographed one week after preparation and are shown in FIG. 3.

Looking at Figure 3, it can be confirmed that the water-in-oil cosmetic composition of Comparative Example 2 shown on the left has an unstable formulation and moisture is generated, but the water-in-oil cosmetic composition of Comparative Example 2 on the right has a stable formulation without generation of moisture. can confirm that

In addition, apart from the above observations, after preparing the water-in-oil cosmetic compositions of Example 2 and Comparative Example 2, storage at -15 ° C for 72 hours, then storage at 25 ° C for 8 hours, and photographing 3 days after preparation. and shown in Figure 4.

Referring to Figure 4, it can be seen that the water-in-oil cosmetic composition of Comparative Example 2 shown on the left has an unstable formulation and cracks and moisture occur on the surface of the formulation, but the water-in-oil cosmetic composition of Comparative Example 2 on the right has an unstable formulation on the surface of the formulation. It can be confirmed that the formulation is still stable without cracks or moisture.

Claims (11)

Dispersing a first emulsion stabilizer containing disteadimonium hectorite and cyclopentasiloxane; and
Selected from the group consisting of the dispersed first emulsion stabilizer and lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PG/PPG-10/1 dimethicone and PEG-10 dimethicone Obtaining a disteadimonium hectorite gel by dispersing a second emulsion stabilizer containing at least one;
Dispersion method of a water-in-oil cosmetic composition comprising a. According to claim 1,
The step of dispersing the first emulsion stabilizer is a method of dispersing a water-in-oil cosmetic composition comprising the step of immersing a rotating shaft fixed stirring mechanism in the first emulsion stabilizer and rotating about the rotation shaft. According to claim 2,
In the step of rotating the stirring mechanism to which the rotating shaft is fixed, the rotational speed of the stirring mechanism is 3000 rpm to 7000 rpm. According to claim 1 or 2,
The step of dispersing the first emulsion stabilizer is a method of dispersing a water-in-oil cosmetic composition further comprising the step of dispersing by adding a dispersing solvent to the first emulsion stabilizer. According to claim 4,
The step of rotating the stirring mechanism to which the rotating shaft is fixed is a method of dispersing a water-in-oil cosmetic composition in which the rotational speed of the stirring mechanism is 3000 rpm to 4000 rpm. According to claim 1,
The dispersing of the second emulsion stabilizer may include immersing a stirring mechanism having a rotational axis into the first emulsion stabilizer and the second emulsion stabilizer so that the rotational shaft revolves while the stirring mechanism rotates around the rotational axis. A method for dispersing a water-in-oil cosmetic composition comprising a rotation step. According to claim 6,
The idle rotation step is a dispersion method of a water-in-oil cosmetic composition in which the rotational speed of the stirring mechanism is 3000 rpm to 4000 rpm. According to claim 6,
In the revolution rotation step, the dispersion method of the water-in-oil cosmetic composition in which the revolution speed of the stirring mechanism is 50 rpm to 100 rpm. a first emulsion stabilizer including disteadimonium hectorite and cyclopentasiloxane; and a second emulsion stabilizer that is at least one selected from the group consisting of lauryl PEG-9 polydimethylsiloxyethyl dimethicone, cetyl PG/PPG-10/1 dimethicone, and PEG-10 dimethicone; As a water-in-oil cosmetic composition comprising a,
After the first emulsion stabilizer is dispersed, the water-in-oil cosmetic composition in which the second emulsion stabilizer is dispersed together with the first emulsion stabilizer. According to claim 9,
The dispersion of the first emulsion stabilizer is a water-in-oil cosmetic composition in which a stirring mechanism having a fixed rotating shaft is immersed in the first emulsion stabilizer to rotate about the rotating shaft. According to claim 9,
Dispersion of the first emulsion stabilizer and the second emulsion stabilizer is performed by immersing a stirring mechanism in which a rotating shaft is capable of revolving in the first emulsion stabilizer and the second emulsion stabilizer so that the rotating shaft rotates while the stirring mechanism rotates around the rotating shaft. A water-in-oil cosmetic composition that rotates.

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