Method for manufacturing solid cosmetic composition using hot-melt extrusion method
The hot-melt extrusion method enhances the resolubility and usability of solid cosmetics by transforming them into liquid formulations, addressing the limitations of existing solid products.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BE NATURE BIO LAB CO LTD
- Filing Date
- 2025-10-28
- Publication Date
- 2026-05-07
AI Technical Summary
Current solid cosmetics lack diversity in raw materials and cannot replace liquid products due to their inability to easily dissolve and reformulate, limiting their usability and sustainability benefits.
A method involving hot-melt extrusion is used to manufacture a solid cosmetic composition by mixing ingredients like antioxidants, thickeners, moisturizers, surfactants, and preservatives, followed by drying, to enhance resolubility and restore the composition to liquid form.
The resulting solid cosmetic composition can easily dissolve in water to reformulate into lotions, creams, or gels, maintaining performance characteristics similar to traditional liquid formulations.
Smart Images

Figure KR2025017235_07052026_PF_FP_ABST
Abstract
Description
Method for manufacturing a solid cosmetic composition using a hot-melt extrusion method
[0001] The present invention relates to a method for manufacturing a solid cosmetic composition using a hot melt extrusion method.
[0002] Cosmetics used daily, such as hair care products like shampoos and conditioners, skin care products, and sunscreens in cream or liquid form, are manufactured and supplied to consumers in plastic containers or vinyl packs. However, as the number of consumers who place great value on eco-friendliness and sustainability increases, there is a growing demand for products that emphasize sustainability, ranging from ingredients and testing methods to containers and packaging.
[0003] With the spread of the "Conscious Beauty" trend, a concept of ethical consumption enhanced by environmental awareness, an increasing number of customers are choosing to consume products produced using eco-friendly methods, extending beyond just the contents to the containers, packaging, and production processes.
[0004] Furthermore, as the number of companies participating in zero-waste practices increases, efforts to reduce carbon emissions are continuing through processes such as using packaging materials that facilitate separate disposal to decrease wastewater during the recycling washing process, and saving energy by simplifying production processes.
[0005] Solid cosmetics, which are being presented as an alternative amidst these trends and industry changes, fundamentally have the significant advantage of producing and consuming less plastic waste and severely limiting water usage within the product, thereby enabling a more active response to sustainability for protecting the global environment, such as reducing carbon emissions.
[0006] However, currently used solid cosmetics are unable to replace liquid products. The primary reason for this is that, since products are made by simply mixing ingredients that maintain their solid or powder forms, they lack the diversity of raw materials compared to liquid cosmetics.
[0007] For example, in the case of shampoo bars (solid shampoos), since the main ingredients are solid ingredients in powder form, conditioners cannot be used, and there are many limitations such as a stiff feeling compared to liquid shampoos.
[0008] Therefore, in order to manufacture cosmetics that can replace existing liquid products while ensuring sustainability, it is urgently necessary to develop solid products that use liquid ingredients without modification, dissolve easily, and minimize volume.
[0009] Meanwhile, hot-melt extrusion (HME) is widely used in various industries, including food, pharmaceuticals, and cosmetics. During the manufacturing process utilizing hot-melt extrusion, a mixture of active ingredients, thermoplastic polymers, and other additives is heated and softened within the extruder and discharged through a die in the form of granules or films. Additionally, it has the advantage of significantly reducing carbon emissions during production and delivery because the production process is simple, uses less water, and results in a small manufacturing volume.
[0010] Therefore, the present invention provides a solid cosmetic composition that is easy to carry and has excellent usability, manufactured using an eco-friendly hot melt extrusion method.
[0011] Regarding prior art related to solid cosmetic compositions, Korean Registered Patent No. 2639189 discloses a solid cleansing cosmetic composition with excellent skin application power, cleansing power, and skin improvement effects, and Korean Registered Patent No. 2114277 discloses a solid cosmetic composition and a method for manufacturing the same. However, there has not yet been any disclosure regarding the 'method for manufacturing a solid cosmetic composition using a hot-melt extrusion method' of the present invention.
[0012] The present invention was derived from the above requirements, and the present invention provides a method for manufacturing a solid cosmetic composition using a hot melt extrusion method. More specifically, a solid cosmetic composition can be manufactured by hot melt extruding a mixture of two or more ingredients selected from the group consisting of antioxidants, thickeners, moisturizers, surfactants, pH adjusters, and preservatives, and then drying the obtained hot melt extruded product. The present invention was completed by confirming that the solid cosmetic composition manufactured according to the present invention has enhanced resolubleness and can be restored to the same form as a lotion, cream, gel, or liquid formulation cosmetic when water is added.
[0013] To solve the above problem, the present invention provides a method for manufacturing a solid cosmetic composition comprising: 1) mixing two or more ingredients selected from the group consisting of antioxidants, thickeners, moisturizers, surfactants, pH adjusters, and preservatives; 2) hot-melt extruding the mixture mixed in step 1); and 3) drying the hot-melt extruded product obtained in step 2).
[0014] In addition, the present invention provides a solid cosmetic composition prepared by the above-described manufacturing method.
[0015] In addition, the present invention provides a cosmetic kit comprising a solid cosmetic composition prepared by the above-described manufacturing method.
[0016] The present invention relates to a method for manufacturing a solid cosmetic composition using a hot melt extrusion method. More specifically, a solid cosmetic composition can be manufactured by hot melt extruding a mixture of two or more ingredients selected from the group consisting of antioxidants, thickeners, moisturizers, surfactants, pH adjusters, and preservatives, and then drying the obtained hot melt extruded product. The solid cosmetic composition of the present invention manufactured has enhanced resolubleness and can be restored to the same form as a lotion, cream, gel, or liquid formulation cosmetic when water is added.
[0017] Figure 1 shows the results of confirming the solubility of a solid shampoo to which the hot melt extrusion method of the present invention was applied. No. 1 is a commercially available finished product as a comparative example, and No. 2 is a solid shampoo to which the hot melt extrusion method of the present invention was applied.
[0018] Figure 2 is the result of confirming the solubility of powder shampoo to which the hot melt extrusion method of the present invention was applied.
[0019] Figure 3 is the result of confirming the foaming power and retention power of a solid cosmetic composition to which the hot melt extrusion method of the present invention was applied.
[0020] In order to achieve the purpose of the present invention,
[0021] The present invention comprises: 1) a step of mixing two or more ingredients selected from the group consisting of antioxidants, thickeners, humectants, surfactants, pH adjusters, and preservatives;
[0022] 2) a step of hot-melt extruding the mixture mixed in step 1) above; and
[0023] 3) A step of drying the hot-melted extruded product obtained in step 2) above; a method for manufacturing a solid cosmetic composition is provided.
[0024] In the method for preparing a solid cosmetic composition of the present invention, in step 1), the antioxidant may be one or more selected from the group consisting of disodium EDTA (Disodium Disodium Ethylenediaminetetraacetic acid), tocopherol, BHT (Butylated Hydroxy Toluene), and BHA (Butylated Hydroxy Anisole), and preferably may be disodium EDTA, but is not limited thereto.
[0025] Additionally, in step 1) above, the thickening agent may be an organic or inorganic thickening agent, and the organic thickening agent may be a natural polymer (xanthan gum, pectin, starch, carrageenan, alginic acid, etc.), a semi-synthetic polymer (carmoximethylcellulose, etc.), or a synthetic polymer (carboxyvinyl polymer, polyvinylpyrrolidone, etc.), and the inorganic thickening agent may be magnesium silicate, etc., and preferably, the thickening agent may be polyquaternium-10, sodium chloride, xanthan gum, hydroxyethylcellulose, hydroxymethylcellulose, acrylates / C10-30 alkyl acrylate crosspolymer, carbomer, or guar hydroxypropyltrimonium It may be one or more selected from the group consisting of Guar Hydroxypropyltrimonium Chloride, Cellulose Gum, Sclerotium Gum, Magnesium Aluminum Silicate, Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, and Polyacrylate Crosspolymer-6, and more preferably one or more selected from the group consisting of Polyquaternium-10, Sodium Chloride, Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, and Polyacrylate Crosspolymer-6, but is not limited thereto.
[0026] In addition, in step 1) above, the moisturizer may be a polyol-based (glycerin, sorbitol, etc.), a high molecular weight polysaccharide (hyaluronic acid, chondroitin sulfate), a natural moisturizing factor (amino acid, mineral, organic acid, etc.), and preferably, the moisturizer may be dipropylene glycol, saccharide isomerate, glycerin, butylene glycol, sodium hyaluronate, panthenol, trehalose, sorbitol, squalane, propylene glycol, betaine, hydrolyzed collagen, ceramide NP, shea butter, and It may be one or more selected from the group consisting of caprylic / capric triglycerides, and more preferably one or more selected from the group consisting of dipropylene glycol, saccharide isomerate, glycerin, and caprylic / capric triglycerides, but is not limited thereto.
[0027] In addition, in step 1) above, the surfactant may be one or more selected from the group consisting of cationic surfactants (alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, benzalkonium chloride, etc.), anionic surfactants (alkyl sulfate ester salts, polyoxyethylene alkyl ether salts, acyl N-methyltaurine salts, alkyl ether phosphate ester salts, etc.), nonionic surfactants, and amphoteric surfactants (amino acid type, betaine type, synthetic raw materials for imidazoline derivatives, etc.); preferably, the surfactant may be Coco-Betain, Disodium Laureth sulfosuccinate, Sodium Cocoyl Isethionate, Sodium Cocoyl Apple amino acid, Cocamide DEA, Sodium Sodium Cocoamphoacetate, Cocamidopropyl Betaine, Lauryl Glucoside, Decyl Glucoside, Polysorbate 20, Sodium Lauryl Sulfate, Sodium Laureth Sulfate, Sodium C 14-16 Olefin sulfonate (Sodium C 14-16It may be one or more selected from the group consisting of Olefin Sulfonate), Arachidyl Alcohol & Behenyl Alcohol & Arachidyl Glucoside, Glyceryl Stearate & PEG-100 Stearate, Polysorbate 60, and Cetearyl Alcohol, and more preferably Cocobetaine, Disodium Lauses Sulfosuccinate, Sodium Cocoyl Isethionate, Sodium Cocoyl Apple Amino Acid, Cocamide DEA, Sodium Cocoamphoacetate, Arachidyl Alcohol & Behenyl Alcohol & Arachidyl Glucoside, Glyceryl Stearate & PEG-100 Stearate, Polysorbate 60, and It may be one or more selected from the group consisting of cetearyl alcohols, but is not limited thereto.
[0028] In addition, the pH adjuster in step 1) above may be one or more selected from the group consisting of citric acid, sodium hydroxide, triethanolamine, lactic acid, and potassium hydroxide, and preferably may be citric acid, but is not limited thereto.
[0029] In addition, the preservative in step 1) above may be one or more selected from the group consisting of phenoxyethanol, ethylhexylglycerin, 1,2-hexanediol, sodium benzoate, potassium sorbate, and dehydroacetic acid, and preferably one or more selected from the group consisting of phenoxyethanol, ethylhexylglycerin, and 2-hexanediol, but is not limited thereto.
[0030] In addition, in step 3) above, drying may be performed at 55 to 85°C for 12 to 48 hours, preferably at 70°C for 24 hours, but is not limited thereto.
[0031] In addition, in step 1) above, one or more selected from the group consisting of aqueous components, oily components, pigments, sunscreens, fragrances, alkali agents, and functional substances may be additionally mixed, but are not limited thereto.
[0032] The above aqueous component may be one or more selected from the group consisting of purified water, ethanol, and polyol, but is not limited thereto.
[0033] The above oily component may be one or more selected from the group consisting of oil, wax, higher alcohol, and higher fatty acid, and the higher alcohol may be one or more selected from the group consisting of lauryl alcohol, stearyl alcohol, cetyl alcohol, cetearyl alcohol, and behenyl alcohol, and the higher fatty acid may be one or more selected from the group consisting of lauric acid, stearic acid, myristic acid, palmitic acid, arachidic acid, behenic acid, oliric acid, linoleic acid, and linolenic acid, but is not limited thereto.
[0034] The above-mentioned pigment may be a dye or a pigment, and the dye may be a lake or a tar dye, and the pigment may be one or more inorganic pigments selected from talc, mica, synthetic mica, sericite, silica, titanium dioxide, silicon-based powder, boron powder, inorganic pigment, and pearlescent pigment; or an organic pigment; but is not limited thereto.
[0035] The above-mentioned sunscreen may be a sunscreen absorber or a sunscreen scatterer, and the sunscreen absorber may be one or more selected from the group consisting of benzophenone derivatives, para-methoxycinnamic acid derivatives and para-aminobenzoic acid derivatives, and the sunscreen scatterer may be zinc oxide or titanium dioxide, but is not limited thereto.
[0036] The above fragrance may be a plant- or animal-based natural fragrance or a synthetic fragrance, but is not limited thereto.
[0037] The above alkali agent may be one or more selected from the group consisting of sodium hydroxide, potassium hydroxide, and triethanolamine, but is not limited thereto.
[0038] The above functional substance may be one or more from the group consisting of culture medium; cell extract; cytokine; chemokine; growth factor; natural extract; compound; deoxyribonucleic acid; ribonucleic acid; collagen; propolis; hyaluronic acid; and vitamin A, vitamin D, vitamin E, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin C and derivatives thereof, but is not limited thereto.
[0039] In addition, depending on the purpose of the ingredient formulation in step 1) above, plasticizers, exfoliants, sweeteners, binders, metal ion chelators, anti-foaming agents, slip modifiers / lubricants, whitening agents, fillers, anti-discoloration agents, denaturants, corrosion inhibitors, dispersants, opacifiers, cell lysators, oxidizing agents, reducing agents, eyelash conditioning agents, astringents, anti-caking agents, acne allergens, abrasives, hair dyes, buffering agents, solvents, emulsifying stabilizers, antistatic agents, adhesives, viscosity modifiers, coloring agents, fragrances, deodorants, surface modifiers, film-forming agents, skin protectants, skin conditioning agents, hair conditioning agents, suspending agents, absorbents, etc. may be additionally mixed.
[0040] In addition, the present invention provides a solid cosmetic composition prepared by the above-described manufacturing method.
[0041] The above composition is characterized by being dissolved in water to be restored into a lotion, cream, gel, or liquid formulation.
[0042] In addition, the present invention provides a cosmetic kit comprising a solid cosmetic composition prepared by the above-described manufacturing method.
[0043] The cosmetic kit of the present invention may further include water or a water-containing solution, such as purified water or cosmetic water, to enable dissolving and mixing of the solid cosmetic composition included therein, but is not limited thereto.
[0044]
[0045] The present invention will be described in detail below by way of embodiments. However, the following embodiments are merely illustrative of the present invention, and the content of the present invention is not limited to the following embodiments.
[0046]
[0047] Preparation Example 1. Solid cosmetic composition using the hot-melt extrusion method
[0048] As disclosed in Tables 1 to 3 below, a mixture of the respective ingredients used in the manufacture of shampoo, essence, and cream cosmetic compositions was applied to copper metal and fully loaded into a twin-screw extruder (STS-25HS, co-rotating intermeshing type twin-screw extruder, Pyeongtaek, Korea), and a circular die (2.5 mm, 4 holes) was fitted to the extruder. The mixture was fed into the extruder at a feed rate of 150 rpm and 15 bar, and the temperature profile from the feed area to the injected die of the extrusion mold was 70℃.
[0049] The extruded product obtained after the completion of hot melt extrusion was dried in an oven (SCOV-150, Sungchan Science, Pocheon, Korea) at 70°C for 24 hours, stored in the form of solid shampoo, powder shampoo, solid essence, and solid cream, and then used in the following examples.
[0050] Weight % of Shampoo Ingredients Ingredient Name | Use | Weight % Disodium EDTA (Disodium Ethylenediaminetetraacetic acid) | Antioxidant 0.07 Polyquaternium-10 | Thickener 0.70 Dipropylene Glycol | Moisturizer 1.00 Coco-Betain | Surfactant 14.50 Disodium Laureth Sulfosuccinate 14.50 Sodium Cocoyl Isethionate 30.00 Sodium Cocoyl Apple Amino Acids 14.50 Cocamide DEA 7.00 Sodium Cocoamphoacetate 14.50 Sodium Chloride Chloride) Thickener 0.70 Citric Acid pH Adjuster 0.22 Phenoxyethanol Preservative 0.73 Ethylhexylglycerin 0.08 Saccharide Isomerate Moisturizer 1.50 Total 100.00
[0051] Weight % of Essence Ingredients Ingredient Name | Use | Content Disodium EDTA (Disodium Ethylenediaminetetraacetic acid) | Antioxidant 0.2 Dipropylene Glycol | Moisturizer 20.5 Glycerin | Moisturizer 50.5 Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer | Thickener 3.2 1,2-Hexanediol | Preservative 20.4 Saccharide Isomerate | Moisturizer 5.2 Total 100
[0052] Weight % of Cream Ingredients Ingredient Name | Use | Content Disodium EDTA (Disodium Ethylenediaminetetraacetic acid) | Antioxidant 0.2 Glycerin | Moisturizer 25.7 Polyacrylate crosspolymer-6 | Thickener 2.1 Caprylic / Capric Triglyceride | Moisturizer 4 1.2 1,2-Hexanediol | Preservative 10.3 Arachidyl Alcohol & Behenyl Alcohol & Arachidyl Glucoside | Surfactant 7.7 Glyceryl Stearate 2.6 Polysorbate 60 5.1 Cetearyl Alcohol) 5.1 Total 100
[0053]
[0054] Example 1. Confirmation of redissolvability of solid shampoo applied using the hot-melt extrusion method of the present invention
[0055] The redissolvability of the solid shampoo prepared using the hot melt extrusion method in Preparation Example 1 above was confirmed. A commercially available finished product was used as a comparative example. Approximately 50g of each solid shampoo was added to 150ml of distilled water (90~100℃), mixed, and observed over time.
[0056] As a result, as disclosed in FIG. 1, in the case of the solid shampoo manufactured using the hot melt extrusion method of the present invention, it was visually confirmed that the raw material was completely dissolved after 12 hours when added to boiling water, whereas in the case of the commercially available finished product used as a comparative example, it was confirmed that the raw material remained even after 24 hours.
[0057]
[0058] Example 2. Confirmation of redissolvability of powder shampoo using the hot-melt extrusion method of the present invention
[0059] In Preparation Example 1 above, the solid shampoo prepared using the hot-melt extrusion method was crushed to obtain a shampoo in powder form. 3 ml of purified water was added to 0.5 g of the obtained powder shampoo, and the mixture was left at room temperature for 24 hours without stirring. As a comparative example, a commercially available powder shampoo was used.
[0060] As a result, as disclosed in FIG. 2, the solid (powder) shampoo to which the hot melt extrusion method of the present invention was applied was completely dissolved in purified water, whereas the commercially available product used as a comparative example remained in its original form.
[0061]
[0062] Example 3. Confirmation of pH and viscosity of a solid cosmetic composition prepared using the hot-melt extrusion method of the present invention
[0063] 5g of solid shampoo, 3g of solid essence, and 10g of solid cream prepared using the hot melt extrusion method in Preparation Example 1 above were each dissolved in 30ml of purified water to restore them to their original formulations, and then compared to the finished products (commercially sold shampoo, essence, and cream in general formulations) to see if there was a difference in pH and viscosity.
[0064] As a result, as disclosed in Table 4 below, it was confirmed that the solid shampoo, solid essence, and solid cream produced using the hot melt extrusion method of the present invention did not show significant differences in pH and viscosity from the respective finished products, and thus could be restored to be identical to the finished products.
[0065] pH and Viscosity Formulation Solid Shampoo Finished Product Shampoo Solid Essence Finished Product Essence Solid Cream Finished Product Cream pH 6.4 4 6.4 5 4.5 2 4.5 0 5.5 9 5.6 6 Viscosity (cP) (Measurement Conditions) 6 43.2 (HA02, 50rpm) 6 42.1 (HA02, 50rpm) 4 4.4 (HA02, 200rpm) 4 5.1 (HA02, 200rpm) 4 0 3 2 (HA05, 50rpm) 4 0 1 6 (HA05, 50rpm)
[0066]
[0067] Example 4. Confirmation of the preservative power of a solid cosmetic composition using the hot-melt extrusion method of the present invention
[0068] Preservative activity was confirmed when 1 g of the solid shampoo prepared using the hot melt extrusion method in Preparation Example 1 above was dissolved in 6 ml of purified water to restore it to its original formulation. To confirm preservative activity, three types of bacteria (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa) and two types of fungi (Candida albicans, Aspergillus niger) were used as test strains.
[0069] As a result, as disclosed in Tables 5 and 6 below, it was confirmed that all bacteria and fungi were killed on the 3rd day in both the solid shampoo and the finished product manufactured using the hot melt extrusion method of the present invention, and that no microbial growth was observed until the 28th day.
[0070] Preservative power of the solid shampoo of the present invention Microorganisms 0 day 3 day 7 day 14 day 21 day 28 day Bacteria E. coli 1.16.E+06 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 S. aureus 1.29.E+06 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 P. aeruginosa 1.06.E+06 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 Fungi C. albicans1.25.E+05less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01A. niger1.22.E+05less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01
[0071] Finished Product Preservative Power Microorganisms 0 Day 3 Day 7 Day 14 Day 21 Day 28 Day Bacteria E. coli 1.16.E+06 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 S. aureus 1.29.E+06 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 P. aeruginosa 1.06.E+06 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 less than 1.00.E+01 Fungi C. albicans1.25.E+05less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01A. niger1.22.E+05less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01less than1.00.E+01
[0072]
[0073] Example 5. Confirmation of foaming power and retention power of a solid cosmetic composition using the hot-melt extrusion method of the present invention
[0074] Foaming power and retention power were confirmed for the solid shampoo prepared using the hot melt extrusion method in Preparation Example 1 above. A finished product (a shampoo of a general formulation) was used as a comparative example. The solid shampoo of the present invention was prepared as a 1% solution, and 20 ml was carefully tilted and filled into a graduated cylinder. After closing the opening, the mixture was shaken up and down 10 times (1 time = 180-degree rotation up and down) to mix it. The initial reading was checked, and the bubble reading was recorded after 2 hours of curing to observe the stability of the bubbles.
[0075] As a result, as disclosed in FIG. 3, the solid shampoo produced using the hot melt extrusion method of the present invention exhibited foaming power and foam retention power without significant difference from the finished product, which is a shampoo of a general formulation.
Claims
1. 1) A step of mixing two or more ingredients selected from the group consisting of antioxidants, thickeners, humectants, surfactants, pH adjusters, and preservatives; 2) a step of hot-melt extruding the mixture mixed in step 1) above; and 3) A step of drying the hot-melted extruded product obtained in step 2) above; a method for manufacturing a solid cosmetic composition.
2. A method for preparing a solid cosmetic composition according to claim 1, wherein in step 1), the antioxidant is one or more selected from the group consisting of disodium EDTA (Disodium Ethylenediaminetetraacetic acid), tocopherol, BHT (Butylated Hydroxy Toluene), and BHA (Butylated Hydroxy Anisole).
3. In claim 1, the thickening agent in step 1) is Polyquaternium-10, Sodium Chloride, Xanthan Gum, Hydroxyethylcellulose, Hydroxymethylcellulose, Acrylates / C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Guar Hydroxypropyltrimonium Chloride, Cellulose Gum, Sclerotium Gum, Magnesium Aluminum Silicate, Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer A method for preparing a solid cosmetic composition characterized by comprising one or more selected from the group consisting of polyacrylate crosspolymer-6.
4. A method for preparing a solid cosmetic composition according to claim 1, wherein in step 1), the moisturizer is one or more selected from the group consisting of dipropylene glycol, saccharide isomerate, glycerin, butylene glycol, sodium hyaluronate, panthenol, trehalose, sorbitol, squalane, propylene glycol, betaine, hydrolyzed collagen, ceramide NP, shea butter, and caprylic / capric triglyceride.
5. In claim 1, the surfactant in step 1) is Coco-Betain, Disodium Laureth sulfosuccinate, Sodium Cocoyl Isethionate, Sodium Cocoyl Apple amino acid, Cocamide DEA, Sodium Cocoamphoacetate, Cocamidopropyl Betaine, Lauryl Glucoside, Decyl Glucoside, Polysorbate 20, Sodium Lauryl Sulfate, Sodium Laureth Sulfate, Sodium C 14-16 Olefin sulfonate (Sodium C 14-16 A method for preparing a solid cosmetic composition characterized by comprising one or more selected from the group consisting of Olefin Sulfonate, Arachidyl Alcohol & Behenyl Alcohol & Arachidyl Glucoside, Glyceryl Stearate & PEG-100 Stearate, Polysorbate 60, and Cetearyl Alcohol.
6. A method for preparing a solid cosmetic composition according to claim 1, wherein in step 1), the pH adjuster is one or more selected from the group consisting of citric acid, sodium hydroxide, triethanolamine, lactic acid, and potassium hydroxide.
7. A method for preparing a solid cosmetic composition according to claim 1, wherein in step 1), the preservative is one or more selected from the group consisting of phenoxyethanol, ethylhexylglycerin, 1,2-hexanediol, sodium benzoate, potassium sorbate, and dehydroacetic acid.
8. A method for preparing a solid cosmetic composition according to claim 1, characterized in that, in step 3), drying is performed at 55 to 85°C for 12 to 48 hours.
9. A method for preparing a solid cosmetic composition according to claim 1, characterized by additionally mixing one or more selected from the group consisting of aqueous components, oily components, pigments, sunscreens, fragrances, alkali agents, and functional substances in step 1).
10. A method for preparing a solid cosmetic composition according to claim 9, wherein the functional substance is one or more selected from the group consisting of culture medium; cell extract; cytokine; chemokine; growth factor; natural extract; compound; deoxyribonucleic acid; ribonucleic acid; collagen; propolis; hyaluronic acid; and vitamin A, vitamin D, vitamin E, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin C and derivatives thereof.
11. A solid cosmetic composition manufactured by a manufacturing method selected from any one of claims 1 to 10.
12. A solid cosmetic composition according to claim 11, characterized in that the composition dissolves in water to be restored to a lotion, cream, gel, or liquid formulation.
13. A cosmetic kit comprising a solid cosmetic composition manufactured by a manufacturing method selected from any one of claims 1 to 10.
14. A cosmetic kit according to claim 13, characterized in that the cosmetic kit further comprises water or a solution containing water.
Citation Information
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