Solid particles comprising liquid component, cluster and solid cosmetic comprising same, and method for manufacturing same

Abstract

The present invention relates to solid particles comprising a liquid component, cluster particles and a solid cosmetic comprising same, and a method for manufacturing same. A solid cosmetic according to an embodiment of the present invention comprises: channeling pores for quickly and evenly supplying the interior with water, an aqueous solution, or a hydrophilic liquid from the outside; a plurality of clusters formed of solid particles containing a liquid active ingredient having solubility in the water; and an adhesive active ingredient for adhering or bonding the plurality of clusters to each other, wherein the channeling pores are formed by the adhesion or bonding between the plurality of clusters.

Description

Solid particles containing liquid components, clusters containing the same, and solid cosmetics and methods for producing the same

[0001] The present invention relates to solid cosmetics, and more particularly, to solid particles containing liquid ingredients, clusters containing the same, solid cosmetics, and a method for producing the same.

[0002] Hair care products like shampoo and conditioner, skin care products like toners, whitening creams, and anti-wrinkle products, color cosmetics like lipsticks and BB creams, and cosmetics like sunscreens are supplied to consumers in liquid form, packaged in plastic containers. This is because the main ingredient in these products is purified water, and the liquid form of their active ingredients provides superior efficacy and user satisfaction, with higher skin absorption rates and unchanged composition compared to solid raw ingredients.

[0003] However, plastic pollution has recently emerged as a major environmental issue, and efforts are underway to ensure the sustainability of everyday products, including the development of recyclable and degradable plastic materials. However, these efforts have so far had minimal impact. In particular, plastic recycling accounts for less than 20% of total plastic production, and high recycling costs limit its effectiveness. Furthermore, degradable plastics are still in the development stage.

[0004] In contrast, solid cosmetics basically do not require plastic containers and can also greatly limit the use of water within the product, which has the great advantage of allowing them to more actively respond to sustainability for protecting the global environment.

[0005] However, solid cosmetics currently in use struggle to replace liquid products due to their low efficacy and user satisfaction. This is primarily due to the extremely limited availability of liquid raw ingredients, which offer diverse benefits and high absorption rates, and the fact that most products use solid raw ingredients with low efficacy.

[0006] For example, the most popular shampoo bars (solid shampoos) that ensure sustainability use solid powdered ingredients, making them unable to guarantee the efficacy of liquid shampoos. Furthermore, optimal formulations for each ingredient are extremely limited. Furthermore, shampoo bars face numerous limitations, including the risk of cracking and softening with use, as well as hygiene concerns.

[0007] Therefore, in order to manufacture cosmetics that can provide excellent efficacy, user satisfaction, and convenience of use while ensuring sustainability, it is urgently necessary to use liquid raw materials without modification, and to produce products in solid form that are easily soluble and do not require plastic containers.

[0008] The technical problem to be achieved by the present invention is to provide a solid cosmetic product that provides high efficacy and excellent satisfaction in terms of product by including a liquid ingredient with excellent efficacy while maintaining a high solid form without deformation.

[0009] In addition, another technical problem to be achieved by the present invention is to provide a solid cosmetic comprising solid particles and clusters that provide improved solubility in water, aqueous solutions or hydrophilic solutions and thus provide instant convenience of use, and the solid cosmetic provides particles comprising solid and liquid active ingredients and clusters and pore structures comprising the same.

[0010] According to an embodiment of the present invention, solid particles may be provided, which include a hydrophilic solid active ingredient; a hydrophilic liquid active ingredient; a lipophilic liquid active substance and a hydrophilic binder, and a liquid component having a maximum particle size (d100) of 850 μm or less. In addition, a liquid component further including a lipophilic active ingredient may be provided. The lipophilic active ingredient includes one of a lipophilic liquid active ingredient, a lipophilic solid active ingredient, or a combination of a lipophilic liquid active ingredient and a lipophilic solid active ingredient, and the lipophilic liquid active ingredient may be a cosmetic liquid raw material of oil type, and is a liquid raw material for manufacturing cosmetics that volatilizes at a boiling point of 100°C or higher, such as isopropyl myristate, caprylic / capric triglyceride, and natural oils (olive oil, jojoba oil, broccoli seed oil, etc.), and the lipophilic solid active ingredient may include a cosmetic raw material for manufacturing polyethylene, polypropylene, dextrin palmitate / ethylhexanoate, microcrystalline wax, butters (shea butter, etc.), natural waxes (candella, soy, palm, beeswax), phytosphingosine, and ceramide.

[0011] The hydrophilic solid active ingredient may include at least one solid raw material ingredient such as solid surfactants such as sodium lauryl sulfate, sodium laureth sulfate, sodium cocoyl isethionate, disodium lyreth sulfosuccinate, cetearyl olivate, sorbitan olivate, glyceryl stearate, glyceryl oleate, etc., trehalose, betaine, niacinamide, allantoin, sorbitol, adenosine, etc.

[0012] The hydrophilic liquid active ingredient may include a liquid component comprising at least one of lauryl glucoside, cocamidopropyl betaine, lauramidopropyl betaine, dexpanthenol, butylene glycol, 1,2-hexanediol, glycerols, and glycols. The hydrophilic binder may include at least one of a material composed of a basic repeating unit of glucose or a combination of glucose derivatives, such as sodium hyaluronate, cellulose, methylcellulose, carboxymethylcellulose, ethylcellulose, and carboxyethylcellulose, a material composed of a basic repeating unit of amino acids or a combination of amino acid derivatives, such as hydrolyzed collagen, hydrolyzed keratin, and hydrolyzed wheat protein, a natural gum (g㎛) such as xanthan gum, and a carbomer.

[0013] The solid particles containing a liquid component may have a structure including a solid matrix containing the hydrophilic solid active component; and the hydrophilic liquid active component being dispersed within the solid matrix.

[0014] According to another embodiment of the present invention, a cluster may be provided, comprising: solid particles comprising a hydrophilic solid active ingredient, a hydrophilic liquid active ingredient, and a hydrophilic binder, wherein at least two liquid components have a maximum particle size (d100) of 850 ㎛ or less; an adhesive active ingredient that adheres or bonds the solid particles to each other; and a plurality of pores formed by the adhered or bonded solid particles. The cluster may have a size of 150 ㎛ to 3000 ㎛, and a specific surface area of ​​the cluster may be 50 ㎠ / g or less. The adhesive active ingredient may include one of a volatile hydrophilic liquid, a combination of a volatile hydrophilic liquid and a hydrophilic liquid active ingredient, a combination of a volatile hydrophilic liquid and a hydrophilic solid active ingredient, a combination of a volatile hydrophilic liquid and a hydrophilic liquid and a solid active ingredient, a lipophilic liquid active ingredient, or a combination of a lipophilic liquid active ingredient and a lipophilic solid active ingredient. The pores may be partially or completely filled with a lipophilic liquid active ingredient or a mixture of a lipophilic liquid active ingredient and a lipophilic solid active ingredient.

[0015] According to another embodiment of the present invention, a solid cosmetic may be provided, comprising: a plurality of clusters formed of solid particles including a liquid component; an adhesive active ingredient that adheres or bonds the plurality of clusters to each other; and channeling pores formed by adhesion between the clusters and supplying water or moisture from the outside into the clusters. A porosity ratio (Ss / Sb) of the solid cosmetic may be less than 2. Here, Ss is the sum of Log Differential Intrusion (mL / g) of 200 μm or less, and Sb is the sum of Log Differential Intrusion (mL / g) of more than 200 μm. The channeling pores may include at least one pore in an edge region that is formed by adhesion or bonding between adjacent clusters and induces a capillary phenomenon so that water or moisture from the outside is absorbed; and a pore in a center region that is connected to the pore in the edge region and maintains the capillary phenomenon. The spacing of the pores in the edge region is 200 μm or less, and the spacing of the pores in the center region is more than 200 μm. The cross-sectional area of ​​the channeling pores is 0.2 cm3 or less.

[0016] According to another embodiment of the present invention, a method for manufacturing a solid cosmetic may be provided, comprising the steps of: preparing solid particles comprising a liquid component; forming clusters using the solid particles; and compression-molding the clusters. The step of preparing a plurality of solid particles may include the steps of dissolving a hydrophilic solid active ingredient, a hydrophilic binder, and a hydrophilic liquid active ingredient; and spray-drying the dissolved mixture. The method may further include the step of heat-treating the compression-molded clusters for a predetermined period of time. In addition, the heating and cooling processes may be repeated a predetermined number of times for the compression-molded clusters.

[0017] The solid particles and clusters containing the same according to an embodiment of the present invention can stably support an effective ingredient of a liquid and, when necessary, can be quickly dissolved to provide the effective ingredient to the skin, etc.

[0018] A solid cosmetic according to another embodiment of the present invention can provide a user with a satisfaction similar to that of using a liquid cosmetic by rapidly dissolving the solid component by rapidly absorbing water, an aqueous solution, or a hydrophilic liquid component through the formed channel throughout the solid cosmetic.

[0019] FIG. 1 is a drawing for explaining solid particles according to an embodiment of the present invention.

[0020] FIG. 2 is a drawing for explaining a cluster according to an embodiment of the present invention.

[0021] Figure 3 is a drawing for explaining a solid cosmetic according to an embodiment of the present invention.

[0022] FIG. 4 is a drawing for explaining a method for manufacturing a solid cosmetic according to an embodiment of the present invention.

[0023] FIG. 5 is a micrograph showing a solid cosmetic surface according to an embodiment of the present invention.

[0024] Fig. 6 is a graph showing the pore distribution of a solid cosmetic according to an embodiment of the present invention.

[0025] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0026] The sizes and thicknesses of areas or parts depicted in the attached drawings may be exaggerated for clarity and convenience of explanation. Throughout this detailed description, the same reference numbers designate the same components. In the following description, the term "active ingredient" may be interpreted as active ingredient, effective ingredient, or main ingredient.

[0027] FIG. 1 is a drawing for explaining solid particles including a liquid component according to one embodiment of the present invention.

[0028] Referring to FIG. 1, the solid particles (10) may include a hydrophilic solid active ingredient (1), a hydrophilic binder (2), a hydrophilic liquid active ingredient (3), and a lipophilic active ingredient (4). The lipophilic active ingredient (4) may be selectively included in the solid particles (10) depending on the efficacy and use. Preferably, the hydrophilic liquid active ingredient (3) may be uniformly distributed within a solid matrix including the hydrophilic solid active ingredient. The hydrophilic binder (2) acts as an adhesive to allow the hydrophilic liquid active ingredient (3) to adhere well within the solid matrix while allowing more hydrophilic liquid active ingredient (3) to be accommodated.

[0029] The hydrophilic solid active ingredient (1) may be a solid cosmetic raw material that is soluble in water at room temperature. For example, it may be one of solid surfactants such as sodium lauryl sulfate, sodium laureth sulfate, sodium cocoyl isethionate, disodium lyreth sulfosuccinate, cetearyl olivate, sorbitan olivate, glyceryl stearate, glyceryl oleate, etc., or a solid cosmetic raw material such as trehalose, betaine, niacinamide, allantoin, sorbitol, adenosine, or a combination thereof, but is not limited thereto.

[0030] The hydrophilic binder (2) may be a cosmetic polymer raw material that dissolves or swells in water at room temperature. For example, it may be a material composed of a basic repeating unit of a combination of glucose or glucose derivatives, such as sodium hyaluronate, cellulose, methylcellulose, carboxymethylcellulose, ethylcellulose, and carboxyethylcellulose; a material composed of a basic repeating unit of a combination of amino acids or amino acid derivatives, such as hydrolyzed collagen, hydrolyzed keratin, and hydrolyzed wheat protein; a natural gum (g㎛) such as xanthan gum; a solid cosmetic raw material such as carbomer; or a raw material of a combination thereof, but is not limited thereto.

[0031] The hydrophilic liquid active ingredient (3) may be a cosmetic liquid raw material that is soluble in water at room temperature. For example, it may be a liquid raw material that volatilizes at a boiling point of 100°C or higher, such as lauryl glucoside, cocamidopropyl betaine, lauramidopropyl betaine, dexpanthenol, butylene glycol, 1,2-hexanediol, glycerol, and glycol. However, the present invention is not limited thereto.

[0032] The lipophilic active ingredient (4) may be a lipophilic liquid active ingredient, a lipophilic solid active ingredient, or a mixture thereof. The lipophilic liquid active ingredient may be a cosmetic liquid raw material of oil type, and may be a liquid raw material having a boiling point of 100°C or higher, such as isopropyl myristate, caprylic / capric triglyceride, natural oils (olive oil, jojoba oil, broccoli seed oil, etc.). The lipophilic solid active ingredient may be a cosmetic raw material, such as polyethylene, polypropylene, dextrin palmitate / ethylhexanoate, microcrystalline wax, butter (shea butter, etc.), natural waxes (candella, soy, palm, beeswax), phytosphingosine, ceramide, etc., but is not limited thereto.

[0033] The maximum particle size (d100) of the solid particles (10) may be 850 μm or less. If the size of the solid particles (10) exceeds 850 μm, water may not penetrate to the center of the solid particles (10) or may take too long to penetrate, so that even though the solid cosmetic is completely hydrated, it takes more time in the process of dissolving in water. Preferably, the maximum particle size (d100) of the solid particles (10) is 50 μm to 850 μm.

[0034] FIG. 2 is a drawing for explaining a cluster (100) including a liquid component according to one embodiment of the present invention.

[0035] Referring to FIG. 2, a cluster (100) may include at least two solid particles (10), an adhesive active ingredient (20) that enables the solid particles (10) to adhere, and pores (30) formed due to the adhesion of the solid particles (10).

[0036] The cluster (100) according to an embodiment of the present invention has an average diameter of 150 to 3000 μm. If the maximum particle size (d100) of the cluster (100) is less than 150 μm, the pores between the clusters (100) through which air escapes during the process of water being hydrated are easily blocked, and as a result, the water does not completely hydrate the solid cosmetic (1000) or it takes more time to hydrate. If the maximum particle size (d100) of the cluster (100) exceeds 3000 μm, the fluidity of the cluster (100) is very poor during the process of making the solid cosmetic (1000) described later, and as a result, it is difficult to have a uniform solid particle (10) and cluster (100) density when manufacturing the solid cosmetic (1000).

[0037] In addition, if the density of solid particles (10) and clusters (100) is not uniform, different physical properties are partially exhibited within the solid cosmetic (1000). In areas where the density of solid particles and clusters is high, a phenomenon of slow function occurs, and in areas where the density is low, it is difficult to maintain the shape of the solid cosmetic (1000) due to a lack of adhesive or bonding points.

[0038] A cluster (100) can form a complex (agglomeration) by at least two or more solid particles (10) being adhered or bonded.

[0039] The adhesive active ingredient (20) is an active ingredient that enables at least two or more solid particles (10) to adhere or bond, and may be formed of a volatile hydrophilic liquid such as water or alcohol, a combination of a volatile hydrophilic liquid and a hydrophilic liquid active ingredient, a combination of an active ingredient in which a volatile hydrophilic liquid and a hydrophilic solid active ingredient are mixed, or a combination of an active ingredient in which a volatile hydrophilic liquid and a hydrophilic liquid active ingredient and a hydrophilic solid active ingredient are mixed, but is not limited thereto.

[0040] The pore (30) may be formed by at least two or more adhered solid particles (10). The pore (30) may have a specific surface area of ​​50 ㎠ / g or less in the cluster (100), and if the specific surface area exceeds 50 ㎠ / g, the stability of the cluster (100) may deteriorate. In addition, the pore (30) may optionally include a lipophilic liquid active ingredient or an active ingredient combination in which a lipophilic liquid active ingredient and a lipophilic solid active ingredient are mixed.

[0041] FIG. 3 is a drawing for explaining a solid cosmetic (1000) according to one embodiment of the present invention. Without limitation, the solid cosmetic (1000) may be any one of shampoo, soap, foam cleanser, body cleanser, rinse, bubble bath, bath oil, scrub, massage cream, essence, serum, oil, pack, lotion, cream, or cleansing water.

[0042] Referring to FIG. 3, a solid cosmetic (1000) includes at least two clusters (100) and channeling pores (200) formed by adhesion or bonding of the clusters. The channeling pores (200) are formed on the surface and inside of the solid cosmetic (1000), and can serve to allow water, an aqueous solution, or a hydrophilic liquid to be rapidly absorbed into the interior of the solid cosmetic when the solid cosmetic is used. Preferably, the channeling pores (200) can be organically connected to each other in a network form to allow rapid penetration of water, an aqueous solution, or a hydrophilic liquid.

[0043] Channeling pores (200) may be a collection of pores having edges and sizes smaller than mm. Specifically, the channeling pores may be divided into pores (a) in the edge region that can move external water, aqueous solutions, or hydrophilic liquids into the solid cosmetic through capillary action, and pores in areas other than the edge region (hereinafter referred to as pores in the center region).

[0044] Pores (a) in the edge region can induce capillary action, allowing moisture to move into the solid cosmetic. For example, pores (a) in the edge region can be formed between two adjacent clusters. As shown in Fig. 3, when four clusters are adhered together, four pores in the edge region can be formed. If three clusters are adhered together, three pores in the edge region can be formed.

[0045] Additionally, the pores (b) in the central region can serve as passages for discharging air that is not discharged during the process of absorbing water into the solid cosmetic by capillary action. In this way, by discharging air, the factor that interrupts the functioning process due to the generation of air that is not discharged inside the solid cosmetic can be eliminated. The pores (b) in the central region can have a spacing exceeding 200 μm. The pores (b) in the areas other than the edges can be diamond-shaped pores formed by the four pores (a) in the edge regions.

[0046] Channeling pores (200) are formed by adhesion or bonding between adjacent clusters, and may include at least one pore (a) in an edge region that causes a capillary phenomenon to absorb water, an aqueous solution, or a hydrophilic liquid from the outside; and a pore (b) in a central region that is connected to the pore in the edge region and maintains the capillary phenomenon.

[0047] For example, and not limited to, in FIG. 2, a pore in a first edge region may be formed between a first cluster (100_1) and a second cluster (100_2), a pore in a second edge region may be formed between a second cluster (100_2) and a third cluster (100_3), a pore in a third edge region may be formed between a third cluster (100_3) and a fourth cluster (100_4), and a pore in a fourth edge region may be formed between a fourth cluster (100_4) and the first cluster (100_1), and the pores (a1) in the first edge region to the pores (a4) in the fourth edge region may each be connected to the pores (b) in the central region.

[0048] Water, an aqueous solution or a hydrophilic liquid from outside can be absorbed into the first cluster (100_1) and the second cluster (100_2) through a capillary phenomenon induced through the pores (a1) of the first edge region, and water, an aqueous solution or a hydrophilic liquid from outside can be absorbed into the second cluster (100_2) and the third cluster (100_3) through a capillary phenomenon induced through the pores (a2) of the second edge region. In addition, water, an aqueous solution or a hydrophilic liquid from outside can be absorbed into the third cluster (100_3) and the fourth cluster (100_4) through a capillary phenomenon induced through the pores (a3) ​​of the third edge region, and water, an aqueous solution or a hydrophilic liquid from outside can be absorbed into the fourth cluster (100_4) and the first cluster (100_1) through a capillary phenomenon induced through the pores (a4) of the fourth edge region.

[0049] FIG. 4 is a drawing for explaining a method for manufacturing a solid cosmetic according to an embodiment of the present invention.

[0050] First, a hydrophilic solid active ingredient (1), a hydrophilic binder (2), and a hydrophilic liquid active ingredient (3) are dissolved in water using a homomixer or stirring mixing, and solid particles containing the liquid are prepared using spray drying. Optionally, when a lipophilic active ingredient is added, the active ingredient is dissolved in an aqueous dispersion state, i.e., a state evenly dispersed in water, and then added, and solid particles (10) containing the liquid are prepared using spray drying.

[0051] A cluster (100) is prepared by adding an adhesive or adhesive active ingredient (20) while stirring solid particles (10). When a volatile hydrophilic liquid is used for adhesive or bonding, the volatile hydrophilic liquid can be prepared by a method in which the cluster (100) is prepared through adhesive or bonding by dissolving or swelling the hydrophilic binder (2), which is the adhesive or adhesive active ingredient, and then removing the cluster (100) through heating, if necessary.

[0052] Thereafter, in the manufacturing process of a solid cosmetic (Fig. 4), at least two or more clusters (100) are placed in a container (step a), and after compression molding (step b), energy is applied to the surface to induce surface melting and cooling of the clusters (100), thereby causing the clusters (100) to adhere (step c), thereby manufacturing a solidified solid cosmetic (1000). Energy may also be applied to the surface through compression molding without limitation, and in the process of adhering the clusters (step c), the heating and cooling process or the microwave process and the cooling process may be repeated several times.

[0053] The solid cosmetic (1000) produced through the above method can increase the area of ​​the solid cosmetic (1000) exposed to moisture through a capillary phenomenon by the pores (30) between the solid particles (10) inside the cluster (100) and the channeling pores (200) formed between the clusters (100), and can enable moisture to be quickly absorbed throughout the inside of the solid cosmetic (1000). Therefore, the solid cosmetic (1000) according to one embodiment of the present invention can stably contain an effective ingredient and be distributed and stored, and can quickly expose the effective or contained ingredient contained therein when the solid cosmetic (1000) is used.

[0054] In this specification, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, they have been used in a general sense only to easily explain the technical contents of the present invention and to help understand the invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of ​​the present invention are possible in addition to the embodiments disclosed herein. Those skilled in the art will appreciate that the solid cosmetics and the method for manufacturing the same according to the embodiments described with reference to FIGS. 1 to 4 can be variously substituted, changed, and modified within the scope of the technical idea of ​​the present invention. Therefore, the scope of the invention should not be defined by the described embodiments, but by the technical idea described in the claims.

[0055]

[0056] Experimental example:

[0057] 1. Solid particle manufacturing step

[0058] : 160g of sodium cocoyl isethionate, 20g of lauryl glucoside, 20g of lauryl betaine, 4g of polyquaternium 10, 10g of D-panthenol, 2g of hydrolyzed keratin, 2g of sodium chloride, and 2g of broccoli seed oil were dissolved in 600g of purified water at 50℃, and a powder was manufactured using a spray dryer. After manufacturing, drying was performed in an oven at approximately 50℃ to remove residual water, and the maximum size of the solid particles was confirmed using a sieve classifier.

[0059]

[0060] 2. Cluster manufacturing stage

[0061] : 10g of solid particles were mixed with 1g of trehalose, 0.02g of allantoin, and 0.1g of hydroxyethyl cellulose using a Henschel mixer for powder mixing, and 1.1g of glycerin, 0.6g of 1,2-hexanediol, and 0.2g of 1,3-butylene glycol were mixed using a Henschel mixer while dropping the powder. At this time, the powder and liquid were mixed twice at 1000 rpm for 30 seconds. After manufacturing, the maximum size of the clusters was confirmed using a sieve classifier.

[0062]

[0063] 3. Solid Cosmetics Manufacturing Stage

[0064] : A 0.7 g cluster was placed in a cylindrical cell with a diameter of 13 mm, compressed to make a tablet with a thickness of 5 mm, the tablet was separated from the cell to make a primary tablet, and this was heat-treated in an oven at about 80°C for 2 hours to make a solid cosmetic.

[0065]

[0066] 4. Evaluation of physical properties of solid cosmetics

[0067] 4-1. Porosity analysis: The porosity and pore distribution of solid cosmetics [Fig. 6] were measured using Autopore 9620.

[0068] In the pore distribution, the porosity below 200 ㎛ (Ss / St) and the porosity above 200 ㎛ (Sb / St) were calculated based on 200 ㎛, and the porosity ratio (Ss / Sb) was calculated.

[0069] - St: Total sum of Log Differential Intrusion (mL / g)

[0070] - Ss: Sum of Log Differential Intrusion (mL / g) of 200㎛ or less

[0071] - Sb: Sum of Log Differential Intrusion (mL / g) exceeding 200㎛

[0072]

[0073] 4-2. Measurement of water penetration time (Ta): Place a tablet in the center of a cylindrical container with an inner diameter of 28 mm and a height of 13 mm, and then place a 100 g weight on top of the tablet. Add 2 ml of water to the cylindrical container, ensuring that the weight and tablet do not come into direct contact with the water, and measure the time it takes for the weight to move.

[0074]

[0075] 4-3. Tablet dissolution evaluation (Tb): The tablet was placed in contact with 5 ml of water for 30 seconds and rubbed with both hands to check whether the tablet was completely dissolved within 30 seconds.

[0076] Solid particle size (d100) Cluster size (d100) Solid cosmetics Ss / St (%) Sb / St (% Ss / SbTaTb Comparative example 1 ≤ 50um (300mesh) -89.12% 10.88% 8.19 1215 min over Not dissolved Comparative example 2 ≤ 74um (200mesh) -84.52% 15.48% 5.45 995 min 22 sec Not dissolved Example 1 ≤ 50um (300mesh) ≤ 150um (90mesh) 0.12% 99.88% 0.001 228 sec Average Example 2 ≤ 74um (200mesh) ≤ 300um (50mesh) 0.25% 99.75% 0.002 522 sec Excellent Example 3 ≤ 74um(200mesh)≤ 1000um(18mesh)32.54%67.46%0.482422secExcellent Example 4≤ 300um(50mesh)≤ 2000um(10mesh)65.81%34.19%1.924825secNormal Example 5≤ 500um(35mesh)≤ 2000um(10mesh)48.91%51.09%1.044817secExcellent Example 6≤ 850um(20mesh)≤ 3000um(7mesh)70.57%29.43%0.417015secNormal Comparative Example 3≤ 1000um(18mesh)≤ 4000um(5mesh)78.13%21.87%0.279912secBadComparisonExample4≤ 500um(35mesh)≤ 4000um(5mesh)34.86%65.14%0.53524min37secNot resolved

[0077]

[0078] Comparative Example 1 is a case where the size of the solid particles is 50 ㎛ or less and the solid particles do not form clusters, Comparative Example 2 is a case where the size of the solid particles is 74 ㎛ or less and the solid particles do not form clusters, and Comparative Example 3 is a case where the size of the solid particles is 1000 ㎛ or less and the solid particles form clusters of 4000 ㎛ or less.

[0079] Example 1 is when the size of the solid particles is 50 ㎛ or less and the solid particles form clusters of 150 ㎛ or less, Example 2 is when the size of the solid particles is 74 ㎛ or less and the solid particles form clusters of 300 ㎛ or less, Example 3 is when the size of the solid particles is 74 ㎛ or less and the solid particles form clusters of 1000 ㎛ or less, Example 4 is when the size of the solid particles is 300 ㎛ or less and the solid particles form clusters of 2000 ㎛ or less, Example 5 is when the size of the solid particles is 500 ㎛ or less and the solid particles form clusters of 2000 ㎛ or less, and Example 6 is when the size of the solid particles is 850 ㎛ or less and the solid particles form clusters of 3000 ㎛ or less. As the size of the solid particles or the size of the clusters increases, the number of solid particles and the number of clusters included in the solid cosmetic decrease.

[0080] In Comparative Examples 1 and 2, water did not penetrate into the solid cosmetics within 30 seconds, and when rubbed with the palm to dissolve them in this state, they stuck to the palm and did not dissolve within 30 seconds. In addition, in Comparative Example 3, although the solid cosmetics dissolved in the form of solid particles, the particle size was large and did not completely dissolve within 30 seconds.

[0081] In the case of Comparative Example 4, since the size of the clusters became too large, uniformity was not formed in the production of the solid cosmetic, so water could not penetrate into the solid cosmetic within 30 seconds, and when rubbed with the palm to dissolve it in this state, it stuck to the palm and did not dissolve within 30 seconds.

[0082] In Examples 1 to 6, water penetrated inside within 30 seconds, and when the tablet was rubbed with both hands in this state, it was completely dissolved within 30 seconds.

[0083] Looking at the porosity (Ss / St) below 200 ㎛, the porosity (Sb / St) above 200 ㎛, and the porosity ratio (Ss / Sb) of Examples 1 to 6, it can be seen that as the size of the solid particles or clusters increases, the porosity (Ss / St) below 200 ㎛ and the porosity ratio (Ss / Sb) increase, and the porosity (Sb / St) above 200 ㎛ decreases. However, in the case of Example 6, when the size of the solid particles is large for the same cluster size (e.g., 2000 ㎛), the porosity (Ss / St) below 200 ㎛ may decrease, and the porosity (Sb / St) above 200 ㎛ and the porosity ratio (Ss / Sb) may decrease compared to Example 5. In the present invention, the porosity ratio (Ss / Sb) is preferably ≤ 2. If (Ss / Sb) > 2, it is believed that the Ta exceeds 30 seconds because the air that is not discharged is generated in the process of absorbing water into the solid cosmetic by capillary phenomenon, and this causes the function process to be partially interrupted or the bubbles to slowly escape and be absorbed.

[0084] In conclusion, when solid particles (10) of 850 ㎛ or less were manufactured, clusters of 200 to 3000 ㎛ were manufactured using these solid particles (10), and a solid cosmetic was manufactured based on the cluster, water penetrated into the solid cosmetic within 30 seconds and could be completely dissolved when rubbed between both palms for 30 seconds, thereby providing satisfaction and convenience in use.

[0085] FIG. 5 is a micrograph showing a solid cosmetic surface according to an embodiment of the present invention.

[0086] Referring to Fig. 5, it can be seen that channeling pores formed by the adhesion of clusters are distributed on the surface of the solid cosmetic.

[0087] FIG. 6 is a graph showing the pore distribution of a solid cosmetic according to an embodiment of the present invention, and was measured using Autopore 9620. Based on 200 μm in the pore distribution, the porosity below 200 μm (Ss / St) and the porosity above 200 μm (Sb / St) were calculated, and the porosity ratio (Ss / Sb) was calculated.

[0088] In this specification, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, they have been used in a general sense only to easily explain the technical contents of the present invention and to help understand the invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of ​​the present invention are possible in addition to the embodiments disclosed herein. Those skilled in the art will appreciate that the solid cosmetics and the method for manufacturing the same according to the embodiments described with reference to FIGS. 1 to 4 can be variously substituted, changed, and modified within the scope of the technical idea of ​​the present invention. Therefore, the scope of the invention should not be defined by the described embodiments, but by the technical idea described in the claims.

[0089] The present invention relates to a solid cosmetic and has industrial applicability.

Claims

1. Solid particles containing liquid components; Adhesive active ingredient; A solid cosmetic comprising channeling pores capable of supplying water, an aqueous solution or a hydrophilic liquid.

2. In paragraph 1, Solid particles containing the above liquid component Hydrophilic solid active ingredient; Hydrophilic liquid active ingredient; and Contains a hydrophilic binder, A solid cosmetic having a maximum particle size (d100) of 850 ㎛ or less.

3. Solid particles comprising a hydrophilic solid active ingredient, a hydrophilic liquid active ingredient and a hydrophilic binder, and at least two liquid components having a maximum particle size (d100) of 850 ㎛ or less; An adhesive active ingredient that causes the above solid particles to adhere or bond to each other; Clusters comprising a plurality of pores formed by the above-described adhesive or bonded solid particles; and A solid cosmetic comprising channeling pores capable of supplying water, an aqueous solution or a hydrophilic liquid.

4. In paragraph 3, A solid cosmetic having a maximum particle size (D100) of the above cluster of 150 ㎛ or more and 3000 ㎛ or less.

5. In paragraph 3, A solid cosmetic having a specific surface area of ​​the above cluster of 50 ㎠ / g or less.

6. In paragraph 1 or paragraph 3, A solid cosmetic comprising the above adhesive active ingredient, wherein the solid cosmetic comprises any one of a volatile hydrophilic liquid, a combination of a volatile hydrophilic liquid and a hydrophilic liquid active ingredient, a combination of a volatile hydrophilic liquid and a hydrophilic solid active ingredient, and a combination of a volatile hydrophilic liquid and a hydrophilic liquid and solid active ingredient.

7. In paragraph 1 or paragraph 3, The above solid cosmetic is a solid cosmetic having a channeling pore ratio (Ss / Sb) of 2 or less. Here, Ss is the sum of Log Differential Intrusion (mL / g) below 200㎛, and Sb is the sum of Log Differential Intrusion (mL / g) above 200㎛.

8. In paragraph 1 or paragraph 3, The above channeling pores are At least one edge region pore that causes capillary action to allow absorption of water, aqueous solution or hydrophilic liquid component; and A solid cosmetic comprising pores in a central region that are connected to pores in the edge region and that maintain the capillary phenomenon.

9. In paragraph 8, The spacing of pores in the above edge region is 200 ㎛ or less, A solid cosmetic having a pore spacing of more than 200 ㎛ in the central region.

10. In paragraphs 2 and 3, The above hydrophilic solid active ingredient is a solid cosmetic comprising at least one of solid surfactants such as sodium lauryl sulfate, sodium laureth sulfate, sodium cocoyl isethionate, disodium laureth sulfosuccinate, cetearyl olivate, sorbitan olivate, glyceryl stearate, glyceryl oleate, and the like, trehalose, betaine, niacinamide, allantoin, sorbitol, and adenosine.

11. In paragraph 2 or 3, A solid cosmetic comprising the hydrophilic liquid active ingredient at least one selected from the group consisting of lauryl glucoside, cocamidopropyl betaine, lauramidopropyl betaine, dexpanthenol, butylene glycol, 1,2-hexanediol, glycerol, and glycols.

12. In paragraph 2 or 3, The above hydrophilic binder is a solid cosmetic comprising at least one of a material composed of a basic repeating unit of a combination of glucose or glucose derivatives, such as sodium hyaluronate, cellulose, methylcellulose, carboxymethylcellulose, ethylcellulose, and carboxyethylcellulose; a material composed of a basic repeating unit of a combination of amino acids or amino acid derivatives, such as hydrolyzed collagen, hydrolyzed keratin, and hydrolyzed wheat protein; a natural gum (g㎛) such as xanthan gum; and a carbomer.

13. In paragraph 2 or 3, A solid cosmetic product further comprising a lipophilic active ingredient.

14. In paragraph 13, The above lipophilic active ingredient comprises one of a lipophilic liquid active ingredient, a lipophilic solid active ingredient, or a combination of a lipophilic liquid active ingredient and a lipophilic solid active ingredient; The lipophilic liquid active ingredient can be a cosmetic liquid raw material of the oil type, and a cosmetic liquid raw material having a boiling point of 100℃ or higher that evaporates, such as isopropyl myristate, caprylic / capric triglyceride, natural oils (olive oil, jojoba oil, broccoli seed oil, etc.), and the lipophilic solid active ingredient can be a solid cosmetic containing cosmetic raw material ingredients such as polyethylene, polypropylene, dextrin palmitate / ethylhexanoate, microcrystalline wax, butter (shea butter, etc.), natural waxes (candella, soy, palm, beeswax), phytosphingosine, and ceramide.

15. A step of preparing solid particles containing the liquid component of claims 1 and 3; A step of forming a cluster of claim 3 using the above solid particles; and A method for manufacturing a solid cosmetic comprising the step of compression molding the above clusters.

16. In paragraph 15, The step of preparing the above plurality of solid particles is A step of dissolving a hydrophilic solid active ingredient, a hydrophilic binder and a hydrophilic liquid active ingredient; and A method for producing a solid cosmetic, comprising the step of spray drying the above-mentioned dissolved mixture.

17. In paragraph 15, A method for manufacturing a solid cosmetic, further comprising the step of heat-treating the compression-molded clusters for a predetermined period of time.

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