KR102160146B1 - Method of preparing oil dispersed double capsule and oil dispersed double capsule prepared thereby - Google Patents

Abstract

The present invention comprises the steps of (a) preparing an aqueous phase comprising a thickening agent and a hardener, and an oil phase comprising a base oil and an encapsulating pigment; (b) preparing an oil-dispersed double capsule base by mixing the oil phase with the aqueous phase obtained in step (a); And (c) dropping the oil-dispersible double capsule base obtained in step (b) onto a dropping medium to prepare an oil-dispersible double capsule, and the oil produced therefrom. It provides a distributed double capsule.
The manufacturing method of the oil-dispersible double capsule of the present invention stabilizes poorly soluble active ingredients in the field of cosmetic manufacturing and improves aesthetics through various color adjustments in the capsule, so that it can be commercialized as a skin care product or a base makeup product. It can be usefully used as a technology that can be manufactured simply and efficiently in a production process.

Description

[Method of preparing oil dispersed double capsule and oil dispersed double capsule prepared thereby}

The present invention relates to a method for producing an oil-dispersible double capsule, and to a method for producing an oil-dispersible double capsule in which at least one oil is encapsulated in a water-soluble tint, and to an oil-dispersed double capsule manufactured thereby.

Recently, in the cosmetic industry, various emulsification technologies such as nano emulsification, multiple emulsification, liquid crystal emulsification, and pickering emulsification are applied to cosmetics as a means to differentiate the appearance of products and increase the delivery efficiency of active ingredients.

Currently, the most representatively used capsules in the cosmetic industry are those using carrageenan and agar, such as the cosmetic capsule composition disclosed in Korean Patent Publication No. 10-0342357, or sodium alginate and alkali disclosed in No. 10-0814034. These are metal salts. However, these capsules have a disadvantage that the pressure disintegration property is not good, and the substances constituting the capsule are made of water-soluble polymers after the capsule collapses, so that it is not easy to absorb into the skin. As an alternative to this, studies on the application of nanostructure particles that are human-friendly and can increase the transfer efficiency of substances by encapsulating and formulating an effective substance in nanoparticles such as liposomes and cubosomes are actively being conducted.

In this regard, as a capsule-containing composition dispersed in an aqueous solvent, the film of the oily capsule is composed of a component selected from the group consisting of higher alcohols with 16 or more carbon atoms and glycerin, fatty acid esters, and diacid diacids, and a water-soluble polymer is added to the aqueous solvent Although a capsule-containing composition for external use has been reported, there is a limit to commercialization as a functional cosmetic because the content of the active ingredient is relatively small due to the high content of the constituent components.

On the other hand, the active ingredient selected from the group consisting of 7-dihydrocholesterol, retinol and oil-soluble licorice extract is trapped therein, and candelilla wax, behenyl alcohol, batyl alcohol, glyceryl stearate and cerasin wax The contents of a cosmetic composition containing as an active ingredient are microcapsules produced by stirring at least one solid wax selected from the group consisting of aqueous and oily mixtures. However, since the above technology can generate only one microcapsule for one active ingredient, there is a disadvantage in that the manufacturing process becomes complicated to encapsulate various active ingredients. Therefore, there is a need to develop a novel technology capable of carrying one or more oils to effectively improve this problem.

Korean Patent Application Publication No. 10-2004-0029764 (2004.04.08) Korean Patent Application Publication No. 10-2014-0011550 (2014.01.29) Korean Patent Registration No. 10-1681073 (2016. 11.24) Korean Patent Application Publication No. 10-2016-0144785 (2016.12.19) Korean Patent Application Publication No. 10-2018-0101233 (2018.09.12)

The inventors of the present invention were researching a novel capsule formulation capable of supporting one or more oils by mixing an oil phase and an aqueous phase without emulsification using a surfactant, and by appropriately increasing the viscosity of the aqueous phase, the aqueous phase and the oil phase It was found to form non-emulsifying oil-dispersible double capsules. In addition, it was further confirmed that two or more kinds of specific oils can be supported in one double capsule.

Accordingly, an object of the present invention is to provide a method of manufacturing an oil-dispersed double capsule.

According to an aspect of the present invention, (a) preparing an aqueous phase comprising a thickener and a hardener, and an oil phase comprising a base oil and an encapsulating pigment; (b) preparing an oil-dispersed double capsule base by mixing the oil phase with the aqueous phase obtained in step (a); And (c) dripping the oil-dispersible double capsule base obtained in step (b) onto a dropping medium to prepare an oil-dispersible double capsule.

In one embodiment, the oil-dispersed double capsule may be one or more oils dispersed therein.

In the manufacturing method of the present invention, the thickener in step (a) is an acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar, carrageenan, guar gum, xanthan gum, alginic acid, pectin, starch, magnesum It may be selected one or more from the group consisting of silicate, sodium polyacrylate starch. In addition, the base oil is sunflower seed oil, macadamia seed oil, jojoba oil, drumstick seed oil, olive oil, grape seed oil, coconut oil, almond oil, camellia oil, avocado oil, caprylic/capric triglyceride, carbohydrate. It may be one or more selected from the group consisting of prylic/capric glyceride, dimethicone, amodimethicone, phenyltrimethicone, and dimethicone/vinyldimethicone crosspolymer, and the base oil is 0.1 to 50 wt. May contain %.

In the manufacturing method of the present invention, the oil-dispersed double capsule base of step (c) may be maintained at a temperature of 40°C to 80°C.

In one embodiment, (a) an aqueous phase containing acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine and purified water, and dimethicone, amodimethicone, Preparing an oil phase comprising a dimethicone/vinyl dimethicone crosspolymer and an encapsulating pigment; (b) mixing the oil phase with the aqueous phase obtained in step (a) and heating at 80° C. to 100° C. to prepare a first oil dispersion type double capsule base; And (c) maintaining the first oil-dispersible double capsule base obtained in step (b) at a temperature of 40° C. to 80° C. and dropping it on a dropping medium at 1° C. to 40° C. to prepare an oil-dispersible double capsule. It may be to prepare an oil-dispersed double capsule in which one type of oil is dispersed.

In one embodiment, (a) an aqueous phase containing acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine, and purified water, dimethicone, amodimethicone, A first oil phase comprising a dimethicone/vinyl dimethicone crosspolymer and a first encapsulating pigment, and a first comprising a dimethicone, amodimethicone, dimethicone/vinyl dimethicone crosspolymer, and a second encapsulating pigment 2 preparing an oil phase; (b) sequentially mixing the first oil phase and the second oil phase with the aqueous phase obtained in step (a) and heating at 80° C. to 100° C. to prepare a second oil dispersion type double capsule base; And (c) maintaining the second oil-dispersible double capsule base obtained in step (b) at a temperature of 40° C. to 80° C. and dropping it on a dropping medium of 1° C. to 40° C. to prepare an oil-dispersible double capsule. It may be to prepare an oil-dispersed double capsule in which two types of oils are dispersed.

In one embodiment, (a) an aqueous phase containing acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine and purified water, dimethicone, amodimethicone, di A second oil phase comprising a methicone/vinyldimethicone crosspolymer and a first encapsulating pigment, a dimethicone, amodimethicone, a dimethicone/vinyldimethicone crosspolymer, and a second encapsulating pigment Preparing an oil phase and a third oil phase comprising dimethicone, amodimethicone, dimethicone/vinyldimethicone crosspolymer, and a third encapsulating pigment; (b) sequentially mixing the first oil phase, the second oil phase, and the third oil phase with the aqueous phase obtained in step (a) and heating to 80° C. to 100° C. to prepare a third oil-dispersed double capsule base; And (c) dropping the third oil-dispersible double capsule base obtained in step (b) on a dropping medium of 1°C to 40°C while maintaining a temperature of 40°C to 80°C to prepare an oil-dispersible double capsule. It may be to prepare an oil-dispersed double capsule in which three types of oils are dispersed.

According to another aspect of the present invention, there is provided an oil-dispersed double capsule manufactured by the above manufacturing method.

In one embodiment, the oil-dispersed double capsule may have a size of 0.5 ㎜ to 50 ㎜.

According to the manufacturing method of the oil-dispersible double capsule of the present invention, the oil raw material is stably supported in the aqueous phase through the use of an appropriate thickener during the capsule manufacturing process, and in the bead formation process, at 10 ℃ ~ 20 ℃ rather than the cryogenic cooling method. It was found that it was hardened slowly to simplify the complexity of the manufacturing facility according to the cryogenic manufacturing process, and it was possible to manufacture two or more types of oil-dispersed double capsules using specific oils and pigments. In addition, it was confirmed that these oil-dispersible double capsules did not have a peculiar stickiness or off-flavor such as surfactants when applied to the skin, and were gently crushed even with low pressure.

Therefore, the manufacturing method of the oil-dispersed double capsule of the present invention stabilizes poorly soluble active ingredients in the field of cosmetic manufacturing and can improve aesthetics through various color adjustments in the capsule, so that it can be commercialized as a skin care product or a base makeup product. , It can be usefully used as a technology that can be manufactured simply and efficiently in a mass production process.

1 is a schematic diagram showing a manufacturing process of one type of oil-dispersed double capsule. (A) shows the process of manufacturing one kind of oil-dispersible double capsule base, and (B) shows the process of making one kind of beaded oil-dispersion double capsule.
2 is a schematic diagram showing a manufacturing process of two or more types of oil-dispersed double capsules. (A) shows the process of producing two types of oil-dispersible double capsule base, and (B) shows the process of producing three kinds of beaded oil-dispersed double capsules.
3 is a photograph of one type of oil-dispersed double capsule. (A) shows a number of 1 type oil-dispersible double capsules, and (B) is an enlarged (7 times) of 1 type 1 oil-dispersible double capsule.
4 is a photograph of two types of oil-dispersed double capsules. (A) shows one double oil-dispersion capsule, (B) shows the cross-section of two oil-dispersion double capsules, and (C) shows a number of two oil-dispersion double capsules. .
5 is a photograph of three types of oil-dispersed double capsules. (A) shows one three types of oil-dispersed double capsule, (B) shows a cross section of three types of oil-dispersible double capsules, and (C) shows a number of three types of oil-dispersed double capsules. .

The present invention comprises the steps of: (a) preparing an aqueous phase comprising a thickener and a hardener, and an oil phase comprising a base oil and an encapsulating pigment; (b) preparing an oil-dispersed double capsule base by mixing the oil phase with the aqueous phase obtained in step (a); And (c) dropping the oil-dispersion type double capsule base obtained in step (b) onto a dropping medium to prepare an oil-dispersion type double capsule.

In one embodiment, the oil-dispersed double capsule may be one or more oils dispersed therein.

The manufacturing method of the present invention includes a step (ie, step (a)) of preparing an aqueous phase including a thickener and a hardener, and an oil phase including a base oil and an encapsulating pigment. Step (a) is a step of preparing an aqueous phase and an oil phase for manufacturing an oil-dispersed double capsule. Each of the components corresponding to the aqueous phase and the components corresponding to the oil phase may be added and stirred for a predetermined time to prepare a homogeneous mixture, respectively.

In step (a), the thickener used is a material used for increasing the viscosity of the aqueous phase, and the oil phase is not easily emulsified in the aqueous phase and can be used to clearly separate the oil phase, preferably acrylate/C10-30 Alkyl acrylate crosspolymer, carbomer, agar, carrageenan, guar gum, xanthan gum, alginic acid, pectin, starch, magnesum silicate, sodium polyacrylate starch, and at least one selected from the group consisting of mixtures thereof can be used. And, most preferably, acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar, carrageenan, and mixtures thereof may be used. Among these, agar, carrageenan, guar gum, and xanthan gum can also be used as a curing agent. In particular, the aqueous phase may be used by appropriately adjusting a thickener and a curing agent so that the viscosity is 10000 cps or more at room temperature.

In addition, the base oil used does not contain a surfactant and is an oil having a polarity used to form an oil phase in the upper layer of the aqueous phase, and various ingredients commonly used in the cosmetic industry can be used, preferably sunflower seed oil. , Macadamia seed oil, jojoba oil, drumstick seed oil, olive oil, grape seed oil, coconut oil, almond oil, camellia oil, avocado oil, caprylic/capric triglyceride, caprylic/capric glyceride, die One or more selected from the group consisting of methicone, amodimethicone, phenyltrimethicone, and dimethicone/vinyldimethicone crosspolymer may be used, and the base oil content is 0.1 to 50% by weight, preferably 1 It may be included in ~ 30% by weight, most preferably 3 ~ 15% by weight.

The term "encapsulated pigment" means a dye contained in a double capsule. In particular, the dyes are inorganic pigments, such as ultramarine, red iron oxide, yellow iron oxide, black iron oxide, and oil-soluble pigments, such as guaiazulene, Indian mulberry tree leaf extract, and India mulberry tree flower. At least one selected from the group consisting of extract, Indian mulberry gum extract, nasturtium extract, ivy gond fruit extract, eggplant extract, aloe vera extract, holly basil leaf extract, turmeric extract, and true coral extract can be used. The double capsule of the present invention may contain only one type of dye, or several types of dyes corresponding to only one color.

The encapsulating pigment is not significantly noticeable on the outer surface of the capsule due to encapsulation, but has the advantage of being easily released out of the microcapsules during application. Encapsulating pigments are different from coating pigments commonly used in makeup products. In practice, coating pigments include chemical coatings for the purpose of improving dispersion in the composition, whereas encapsulating pigments comprise one or more physical layers that form an envelope, the layers being relatively uniform and isolated so as not to leak the encapsulating pigment, each The encapsulating pigment is suitably individualized in the composition, which is different from the case of coating pigments. In the present invention, not only can the encapsulation pigment have an aesthetic effect on the appearance, but it can also be visually confirmed that at least one oil component (active component) is stably supported in the capsule.

The manufacturing method of the present invention includes the step of preparing an oil-dispersed double capsule base by mixing the oil phase with the aqueous phase obtained in step (a) [ie, step (b)]. Step (b) is a step of lowering the viscosity by heating the mixture (o/w) of the water phase and the oil phase to 80 ℃ ~ 100 ℃.

The mixture in which the oil phase was added to the aqueous phase in step (b) may be stirred slowly at a speed of 100 rpm to 150 rpm to be homogeneously dispersed. In addition, when there are two or more oil phases, the first mixture (o/w) obtained by mixing the aqueous phase and one oil phase may be sufficiently homogeneously stirred, and then the remaining oil phase may be added and mixed. A process of heating the sufficiently homogeneously dispersed mixture to 80°C to 100°C, preferably 85°C to 95°C may be performed. By performing the heating process, the viscosity can be lowered to form an oil-dispersed double capsule base having flowability. The oil-dispersed double capsule base may perform a process of passing through a nozzle after checking the appropriate viscosity by measuring the viscosity.

After the heating process of the oil-dispersed double capsule base, the viscosity may be 300 cps to 1500 cps. If the viscosity of the oil-dispersed double capsule base is 150 ~ 200 cps or less, the double capsules with evenly dispersed oil may not be formed properly, and if the viscosity is more than 2000 cps, it will not be completely separated individually in the process of passing through the nozzle. Oil-dispersed double capsules may be formed.

The manufacturing method of the present invention includes the step of instilling the oil-dispersed double capsule base obtained in step (b) onto a dropping medium to prepare an oil-dispersed double capsule (ie, step (c)). Step (c) is a step of obtaining an oil-dispersed double capsule from the oil-dispersed double capsule base. In step (c), a process of dropping the double capsule beads passing through the nozzle from the oil-dispersible double capsule base maintained at a temperature of 40 ℃ ~ 80 ℃ on the cooling device with dropping media in the range of 1 ℃ ~ 40 ℃ is performed. I can.

The oil-dispersed double capsule base may be maintained at a temperature in the range of 40°C to 80°C, preferably in the range of 50°C to 75°C, and most preferably in the range of 60°C to 70°C.

The dropping media may be set to a temperature in the range of 1 °C to 40 °C, preferably in the range of 10 °C to 20 °C. Dropping media may be liquid and fluid oils, such as silicone oil and mineral oil. Silicone oil and mineral oil can be preferably used because there is little change in viscosity due to temperature change. Examples of silicone oils include dimethyl silicone oil, methylphenyl silicone oil, methylhydrogen silicone oil, methylhydroxy silicone oil, fluoro silicone oil, polyoxyether copolymer, alkyl-modified silicone oil, higher fatty acid-modified silicone oil, amino-modified silicone. Oils and epoxy-modified silicone oils. Mineral oil, also called liquid petroleum or mineral oil, refers to a by-product produced in the process of refining crude oil into petroleum, and its main components are alkanes and paraffins.

In one embodiment, (a) an aqueous phase containing acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine, and purified water, dimethicone, amodimethicone, A first oil phase comprising a dimethicone/vinyl dimethicone crosspolymer and a first encapsulating pigment, and a first comprising a dimethicone, amodimethicone, dimethicone/vinyl dimethicone crosspolymer, and a second encapsulating pigment 2 preparing an oil phase; (b) sequentially mixing the first oil phase and the second oil phase with the aqueous phase obtained in step (a) and heating at 80° C. to 100° C. to prepare a second oil dispersion type double capsule base; And (c) maintaining the second oil-dispersible double capsule base obtained in step (b) at a temperature of 40° C. to 80° C. and dropping it on a dropping medium of 1° C. to 40° C. to prepare an oil-dispersible double capsule. It may be to prepare an oil-dispersed double capsule in which one type of oil is dispersed.

In one embodiment, (a) an aqueous phase containing acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine and purified water, dimethicone, amodimethicone, di A second oil phase comprising a methicone/vinyldimethicone crosspolymer and a first encapsulating pigment, a dimethicone, amodimethicone, a dimethicone/vinyldimethicone crosspolymer, and a second encapsulating pigment Preparing an oil phase and a third oil phase comprising dimethicone, amodimethicone, dimethicone/vinyldimethicone crosspolymer, and a third encapsulating pigment; (b) sequentially mixing the first oil phase, the second oil phase, and the third oil phase with the aqueous phase obtained in step (a) and heating to 80° C. to 100° C. to prepare a third oil-dispersed double capsule base; And (c) dropping the third oil-dispersible double capsule base obtained in step (b) on a dropping medium of 1°C to 40°C while maintaining a temperature of 40°C to 80°C to prepare an oil-dispersible double capsule. It may be to prepare an oil-dispersed double capsule in which two types of oils are dispersed.

In one embodiment, (a) an aqueous phase containing acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine and purified water, dimethicone, amodimethicone, di A second oil phase comprising a methicone/vinyldimethicone crosspolymer and a first encapsulating pigment, a dimethicone, amodimethicone, a dimethicone/vinyldimethicone crosspolymer, and a second encapsulating pigment Preparing an oil phase and a third oil phase comprising dimethicone, amodimethicone, dimethicone/vinyldimethicone crosspolymer, and a third encapsulating pigment; (b) sequentially mixing the first oil phase, the second oil phase, and the third oil phase with the aqueous phase obtained in step (a) and heating to 80° C. to 100° C. to prepare a third oil-dispersed double capsule base; And (c) dropping the third oil-dispersible double capsule base obtained in step (b) on a dropping medium of 1°C to 40°C while maintaining a temperature of 40°C to 80°C to prepare an oil-dispersible double capsule. It may be to prepare an oil-dispersed double capsule in which three types of oils are dispersed.

In addition, the present invention provides an oil-dispersed double capsule manufactured by the above manufacturing method. The oil-dispersed double capsule may have a size (diameter or longest distance) of 0.5 mm to 50 mm, preferably 1 mm to 10 mm, and most preferably 5 mm to 8 mm. Droplets of the oil-dispersed double capsule base can be appropriately selected in a desired size and/or shape by appropriately adjusting the nozzle diameter and spray pressure.

The double capsules exhibited a semitransparent milky color as a whole, but it was confirmed that one or more colors according to the ratio of each encapsulating pigment can be applied through diversification of the oil color inside the capsule, thereby improving the aesthetics (Figs. 3 to 5). In addition, in the sensory evaluation related to the feeling of use of the oil-dispersed double capsules each having an oil content of 3% by weight to 15% by weight, it was confirmed that the preference of the texture increased as the oil content increased and the feeling of use increased.

Since the double capsule is encapsulated with a water-soluble tint that does not affect the general cosmetic base component, the oil component containing a plurality of active ingredients can be stably supported in the capsule during cosmetic manufacturing. In addition, in the cosmetic composition including the oil-dispersed double capsule, the color, size, and content of the active ingredient inside the capsule can be conveniently adjusted from the oil phase in the manufacturing process. In addition, it shows the advantage of improving the visual effect in the cosmetic formulation prepared therefrom.

Hereinafter, the present invention will be described in more detail through examples. However, the following examples are for illustrating the present invention, and the scope of the present invention is not limited thereto.

<Example 1> Preparation of type 1 oil-dispersed double capsule

The components of the oil-dispersible double capsule using one pigment are shown in Table 1 below.

The components in Table 1 were classified as follows to perform a manufacturing process (see FIGS. 1A and 1B).

(1) Water dissolving tank: purified water, 1,2-hexanediol, ethylhexyl glycerin, acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, tromethamine, agar (agar), carrageenan

(2) Oil phase dissolving tank: dimethicone, amodimethicone, dimethicone/vinyl dimethicone crosspolymer, ultramarine pigment

First, the raw materials were weighed in the amount shown in Table 1 with a fine balance, and the components corresponding to the aqueous phase were added thereto, followed by stirring at 500 rpm for 10 minutes to homogeneously disperse. Next, the raw material corresponding to the oil phase was stirred at 300 rpm for 5 minutes to homogeneously dispersed.

The oil phase was added to the homogeneously dispersed aqueous phase, stirred slowly at 100 rpm to 150 rpm for 5 to 7 minutes to disperse homogeneously, then heated to 90 °C and stirred at 100 rpm for 10 minutes to 67 °C to 70 °C. By lowering the temperature, a flowable oil-dispersed double capsule base was prepared.

The prepared oil-dispersed double capsule base was passed through a nozzle to obtain a capsule in which the cross section between the oil dispersions was in contact. The obtained double capsules were dropped into dropping media (silicon compounds) maintained at 10°C to 20°C, and then cooled while circulating and discharged in a solid state, and the double capsules in which marine oil liquid was evenly dispersed. Obtained. The obtained round-shaped oil-dispersible double capsule has a size of approximately 4.5 ㎜ to 7 ㎜ and the weight composition shown in Table 1 above. A photograph of the obtained product is shown in FIG. 3.

In addition, in the sensory evaluation related to the feeling of use of the oil-dispersed double capsule having each oil content of 3% by weight to 15% by weight, it was confirmed that the feeling of use increased as the oil content increased.

<Example 2> Preparation of two types of oil-dispersed double capsules

The components of the oil-dispersed double capsule using two kinds of pigments are shown in Table 2 below.

The same manufacturing process as in Example 1 was performed using the components of Table 2 (see FIG. 2A).

In the same manner as in Example 1, a water melting tank, an oil phase melting tank 1, and an oil phase melting tank 2 were prepared.

In addition, oil-dispersed double capsule base having flowability was prepared in the same manner as in Example 1 by sequentially adding oil phase 1 and oil phase 2 to a homogeneously dispersed aqueous phase.

Fig. 4 shows a photograph of the oil-dispersion-type double capsules of two colors in a round shape obtained from the prepared oil-dispersion-type double capsule base.

<Example 3> Preparation of three kinds of oil-dispersed double capsules

The components of the oil-dispersed double capsule using three kinds of pigments are shown in Table 3 below.

The same manufacturing process as in Example 1 was performed using the components of Table 3 (see Fig. 2B).

In the same manner as in Example 1, a water melting tank, an oil phase melting tank 1, an oil phase melting tank 2, and an oil phase melting tank 3 were prepared.

In addition, oil phase 1, oil phase 2, and oil phase 3 were sequentially added to the homogeneously dispersed aqueous phase to prepare an oil-dispersed double capsule base having flowability in the same manner as in Example 1.

Fig. 5 shows a photograph of an oil-dispersible double capsule having three colors in a round shape obtained from the prepared oil-dispersed double capsule base.

<Comparative Examples 1 to 2> Preparation of one type of oil-dispersed double capsule with different thickener conditions

The contents of each thickener component for one type of oil-dispersed double capsule using a single pigment having different conditions of Example 1 and the thickener are shown in Table 4 below. Comparative Examples 1 to 2 were oil-dispersed double capsules containing no acrylate/C10-30 alkyl acrylate crosspolymer or carbomer among the thickener components. Unlike Example 1, Comparative Examples 1 to 2 showed that the oil was not uniformly dispersed, and the stability of the oil film in the moisture carrier was reduced, and the aesthetics was significantly degraded. Therefore, it was confirmed that a viscosity of 10000 cps or more in the aqueous phase at room temperature before heating is an important condition in the manufacture of oil-dispersible double capsules.

Classification ingredient Example 1 Comparative Example 1 Comparative Example 2 Thickener Acrylate/C10-30 alkyl acrylate crosspolymer 0.10 - 0.10 Carbomer 0.12 0.12 - Thickener and hardener Baby (agar) 0.70 0.70 0.70 Carrageenan 0.35 0.35 0.35

Claims (10)

delete delete delete delete delete (a) acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, water containing tromethamine and purified water, and dimethicone, amodimethicone, dimethicone/vinyl Preparing an oil phase comprising a dimethicone crosspolymer and an encapsulating pigment;
(b) mixing the oil phase with the aqueous phase obtained in step (a) and heating at 80 to 100° C. to prepare a first oil dispersion type double capsule base; And
(c) preparing an oil-dispersible double capsule by dropping the first oil-dispersible double capsule base obtained in step (b) on a dropping medium of 1 to 40°C while maintaining the temperature at 40°C to 80°C.
Method for producing an oil-dispersed double capsule in which one type of oil is dispersed, including. (a) acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, tromethamine, and aqueous phase containing purified water, dimethicone, amodimethicone, dimethicone/vinyl To prepare a first oil phase comprising a dimethicone crosspolymer and a first encapsulating pigment and a second oil phase comprising dimethicone, amodimethicone, dimethicone/vinyldimethicone crosspolymer and a second encapsulating pigment step;
(b) sequentially mixing the first oil phase and the second oil phase with the aqueous phase obtained in step (a) and heating at 80° C. to 100° C. to prepare a second oil dispersion type double capsule base; And
(c) preparing an oil-dispersed double capsule by dropping the second oil-dispersible double capsule base obtained in step (b) on a dropping medium of 1 to 40 °C while maintaining the temperature at 40 to 80 °C.
Method of producing an oil-dispersed double capsule in which two types of oils are dispersed, including. (a) Acrylate/C10-30 alkyl acrylate crosspolymer, carbomer, agar (agar), carrageenan, aqueous phase containing tromethamine and purified water, dimethicone, amodimethicone, dimethicone/vinyl die A first oil phase comprising a methicone crosspolymer and a first encapsulating pigment, dimethicone, amodimethicone, a second oil phase comprising a dimethicone/vinyldimethicone crosspolymer and a second encapsulating pigment, and a dimer Preparing a third oil phase comprising ticon, amodimethicone, dimethicone/vinyldimethicone crosspolymer, and a third encapsulating pigment;
(b) sequentially mixing the first oil phase, the second oil phase, and the third oil phase with the aqueous phase obtained in step (a) and heating to 80° C. to 100° C. to prepare a third oil-dispersed double capsule base; And
(c) preparing an oil-dispersed double capsule by dropping the third oil-dispersible double capsule base obtained in step (b) on a dropping medium of 1°C to 40°C while maintaining the temperature at 40°C to 80°C.
A method of manufacturing an oil-dispersed double capsule in which three types of oil are dispersed, including. delete delete

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