Preparation method and application of oil beads for cosmetics

Abstract

The invention discloses a preparation method and application of oil beads for cosmetics. The oil beads for the cosmetics are prepared from squalane, jojoba oil, caprylic / capric triglyceride, transparent vaseline, cetostearyl alcohol, beewax, polyglycerol ester and functional active ingredients. The preparation method comprises the following steps: adding beeswax, cetostearyl alcohol and transparent vaseline into a container, heating and melting, adding squalane, jojoba oil and caprylic / capric triglyceride, stirring while keeping the temperature, adding polyglycerol ester, and continuously stirring while keeping the temperature until the mixture is uniformly dispersed to obtain an emulsified mixture A; after the emulsified mixture A is cooled, adding the functional active component, and continuously stirring until the functional active component is uniformly dispersed to obtain an emulsified mixture B; and dripping the emulsified mixture B into the cooling liquid through dripping pill equipment, standing, and filtering to obtain the oil beads for cosmetics. The oil droplets are stable in structure, long in ingredient effective time and good in skin feeling experience, the preparation process is simple, industrial production is facilitated, and the cooled oil droplets are solid particles and are easy to transport and sell.

Description

Technical Field

[0001] The present application relates to the technical field of daily chemical products, and in particular to a preparation method and application of oil beads for cosmetics. Background Art

[0002] In the modern cosmetics industry, product safety, effectiveness and user experience are the main factors that consumers are concerned about. However, traditional cosmetic formulas often have the following problems: the liquid oil phase is easy to stratify, resulting in poor product stability during storage and uneven use effects; many active ingredients are greatly affected by heat and oxidation, resulting in reduced effectiveness; oily cosmetics often give consumers a sticky feeling, affecting the user experience. Therefore, how to improve the stability, effectiveness and comfort of the oil phase components in cosmetics has become a research focus. Summary of the invention

[0003] The present application provides a preparation method and application of oil beads for cosmetics, so as to solve the technical problems of poor stability, reduced effectiveness and poor comfort of traditional cosmetics containing oily ingredients.

[0004] In order to solve the above technical problems, in the first aspect, the present application provides a method for preparing oil beads for cosmetics, wherein the oil beads for cosmetics include the following raw material components in parts by mass:

[0005] 5 to 20 parts of squalane, 5 to 20 parts of jojoba oil, 5 to 20 parts of caprylic / capric triglyceride, 10 to 20 parts of transparent petrolatum, 1 to 5 parts of cetostearyl alcohol, 1 to 5 parts of beeswax, 2 to 10 parts of polyglycerol esters, and 20 to 50 parts of functional active ingredients;

[0006] The preparation method comprises the following steps:

[0007] Step 1: Add beeswax, cetostearyl alcohol and transparent vaseline into a container and heat to 60°C to 80°C to completely melt the components, add squalane, jojoba oil and caprylic / capric triglyceride, stir while keeping warm, then add polyglycerol ester, continue to stir while keeping warm until evenly dispersed, to obtain an emulsified mixture A;

[0008] Step 2: After the emulsified mixture A of step 1 is cooled to 55° C. to 60° C., the functional active ingredients are added and stirred continuously until the functional active ingredients are evenly dispersed to obtain an emulsified mixture B;

[0009] Step 3: drip the emulsified mixture B of step 2 into the cooling liquid through a pill dropping device, let it stand for 3 to 5 minutes, and filter to obtain oil droplets for cosmetics.

[0010] Base oils (squalane, jojoba oil, caprylic / capric triglyceride) provide moisturizing, soft, and light skin touch, have good stability and encapsulation ability, and promote the oil droplets' ability to encapsulate active ingredients; molding agents (transparent petrolatum, cetearyl alcohol, beeswax) have excellent sealing and protective properties, ensuring the structural stability and hardness of the oil droplets; emulsifiers (polyglycerol esters) have excellent emulsification stability, ensuring uniform dispersion and stability of the ingredients; functional active ingredients provide core functionality for the oil droplets.

[0011] In some embodiments, the cosmetic oil droplets include the following raw material components in parts by mass:

[0012] 10 parts of squalane, 13 parts of jojoba oil, 20 parts of caprylic / capric triglyceride, 15 parts of transparent vaseline, 2 parts of cetostearyl alcohol, 3 parts of beeswax, 5 parts of polyglycerol esters, and 32 parts of functional active ingredients.

[0013] In some embodiments, the heating temperature of step 1 is 70°C, and the cooling temperature of step 2 is 58°C.

[0014] In some embodiments, the cooling liquid is water or an ethanol aqueous solution.

[0015] In some embodiments, the temperature of the cooling liquid is 4°C to 10°C.

[0016] In some embodiments, the diameter of the cosmetic oil droplets is 0.5 mm to 5 mm.

[0017] In some embodiments, the functional active ingredient is a lipophilic active ingredient, and the lipophilic active ingredient includes one or more of an antibacterial active ingredient, a whitening active ingredient, an anti-aging active ingredient, an antipruritic active ingredient, and a deodorizing active ingredient.

[0018] Antibacterial active ingredients, such as tea tree oil, clove oil, rosemary oil, peppermint oil, lemon oil and chive oil. Whitening active ingredients, such as vitamin C derivatives, arbutin, niacinamide, tyrosinase inhibitors (such as birch extract) and plant oils (such as rose oil). Anti-aging active ingredients, such as vitamin A derivatives, fat-soluble vitamin E, peptides, plant oils (such as argan oil) and rosemary oil. Antipruritic active ingredients, such as peppermint oil and oat extract. Deodorant active ingredients, such as tea tree oil, rosemary oil, lavender oil and peppermint oil.

[0019] In some embodiments, the cosmetic oil droplets further include one or more of a flavor, a colorant, an antioxidant, and a preservative.

[0020] In a second aspect, the present application provides an application of cosmetic oil beads prepared by the preparation method described in the first aspect in daily cosmetics, wherein the daily cosmetics include facial cleansers, shower gels, shampoos, essences and conditioners.

[0021] Compared with the prior art, this application has at least the following beneficial effects:

[0022] The stable oil droplet structure is formed by beeswax, cetostearyl alcohol and transparent vaseline, providing a good physical barrier for the oil droplets, which can effectively prevent the stratification and rupture of the oil droplets during storage, and ensure the long-term stability of the product; squalane, jojoba oil and caprylic / capric triglyceride are used to promote the encapsulation of functional active ingredients, which can gradually release functional active ingredients during use, and polyglycerol esters ensure that the oil phase and the water phase are evenly dispersed to form a stable emulsified system; and the oil droplet formula of the present invention adopts natural oils and non-irritating ingredients to improve the mildness of the product. At the same time, the preparation process of the present invention is simple, which is conducive to industrial production, and the oil droplets obtained by cooling are solid particles, which are easy to transport and sell.

[0023] In addition, the present invention can selectively add antibacterial active ingredients, whitening active ingredients, anti-aging active ingredients, antipruritic active ingredients or deodorant active ingredients to meet the oil droplet structure with different functional requirements; and selectively add colorants to prepare a colorful appearance, enhance the visual beauty of the cosmetic product, and attract consumers. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] As used herein, the term "prepared from" is synonymous with "comprising." As used herein, the terms "comprising," "including," "having," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

[0026] When amount, concentration or other value or parameter is expressed as range, preferred range or a series of upper preferred value and lower preferred value limit range, this should be understood as specifically disclosing all ranges formed by any pairing of any range upper limit or preferred value and any range lower limit or preferred value, regardless of whether the range is disclosed separately. For example, when disclosing range "1 to 5", described range should be interpreted as including range "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5" etc. When numerical range is described in this article, unless otherwise stated, the range is intended to include its end value and all integers and fractions within the range.

[0027] In addition, the indefinite articles "a" and "an" before the elements or components of the present invention have no restrictions on the quantity requirements (i.e. the number of occurrences) of the elements or components. Therefore, "a" or "an" should be interpreted as including one or at least one, and the elements or components in the singular form also include the plural form, unless the number is obviously intended to be in the singular form.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] Example 1

[0030] A method for preparing oil beads for cosmetics, the oil beads for cosmetics comprising the following raw material components in parts by mass:

[0031] 5 parts of squalane, 5 parts of jojoba oil, 5 parts of caprylic / capric triglyceride, 10 parts of transparent vaseline, 1 part of cetostearyl alcohol, 1 part of beeswax, 2 parts of polyglycerol esters, and 20 parts of lipophilic active ingredients; the lipophilic active ingredients include tea tree oil, lemon oil, aminoamide and peppermint oil in equal mass ratios;

[0032] Step 1: Add beeswax, cetostearyl alcohol and transparent vaseline into a container and heat to 60° C. to completely melt the components, add squalane, jojoba oil and caprylic / capric triglyceride, stir while keeping warm, then add polyglycerol ester, continue to stir while keeping warm until evenly dispersed, to obtain an emulsified mixture A;

[0033] Step 2: After the emulsified mixture A of step 1 is cooled to 55° C., the lipophilic active ingredient is added, and stirring is continued until the lipophilic active ingredient is evenly dispersed to obtain an emulsified mixture B;

[0034] Step 3: drip the emulsified mixture B of step 2 into a cooling liquid at a temperature of 4° C. through a pill dropping device, let it stand for 3 minutes, and filter to obtain oil droplets for cosmetics.

[0035] Example 2

[0036] A method for preparing oil beads for cosmetics, the oil beads for cosmetics comprising the following raw material components in parts by mass:

[0037] 20 parts of squalane, 20 parts of jojoba oil, 20 parts of caprylic / capric triglyceride, 20 parts of transparent vaseline, 5 parts of cetostearyl alcohol, 5 parts of beeswax, 10 parts of polyglycerol ester, and 50 parts of lipophilic active ingredients; the lipophilic active ingredients include tea tree oil, lemon oil, amino amide and peppermint oil in equal mass ratios;

[0038] Step 1: Add beeswax, cetostearyl alcohol and transparent vaseline into a container and heat to 80° C. to completely melt the components, add squalane, jojoba oil and caprylic / capric triglyceride, stir while keeping warm, then add polyglycerol ester, continue to stir while keeping warm until evenly dispersed, to obtain an emulsified mixture A;

[0039] Step 2: After the emulsified mixture A of step 1 is cooled to 60° C., the lipophilic active ingredient is added and stirred continuously until the lipophilic active ingredient is evenly dispersed to obtain an emulsified mixture B;

[0040] Step 3: drip the emulsified mixture B of step 2 into a cooling liquid at a temperature of 10° C. through a pill dropping device, let it stand for 5 minutes, and filter to obtain oil droplets for cosmetics.

[0041] Example 3

[0042] A method for preparing oil beads for cosmetics, the oil beads for cosmetics comprising the following raw material components in parts by mass:

[0043] 10 parts of squalane, 13 parts of jojoba oil, 5-20 parts of caprylic / capric triglyceride, 15 parts of transparent vaseline, 2 parts of cetostearyl alcohol, 3 parts of beeswax, 5 parts of polyglycerol ester, and 32 parts of lipophilic active ingredients; the lipophilic active ingredients include tea tree oil, lemon oil, amino amide and peppermint oil in equal mass ratios;

[0044] Step 1: Add beeswax, cetostearyl alcohol and transparent vaseline into a container and heat to 70° C. to completely melt the components, add squalane, jojoba oil and caprylic / capric triglyceride, stir while keeping warm, then add polyglycerol ester, continue to stir while keeping warm until evenly dispersed, to obtain an emulsified mixture A;

[0045] Step 2: After the emulsified mixture A of step 1 is cooled to 58° C., the lipophilic active ingredient is added, and the mixture is continuously stirred until the lipophilic active ingredient is evenly dispersed to obtain an emulsified mixture B;

[0046] Step 3: drip the emulsified mixture B of step 2 into a cooling liquid at a temperature of 4° C. through a pill dropping device, let it stand for 4 minutes, and filter to obtain oil droplets for cosmetics.

[0047] Comparative Example 1

[0048] The difference from Example 3 is that Comparative Example 1 does not contain squalane, jojoba oil and caprylic / capric triglyceride.

[0049] Comparative Example 2

[0050] The difference from Example 3 is that Comparative Example 2 does not contain transparent vaseline.

[0051] Comparative Example 3

[0052] The difference from Example 3 is that Comparative Example 3 does not contain cetostearyl alcohol and beeswax.

[0053] Comparative Example 4

[0054] The difference from Example 3 is that Comparative Example 4 does not contain polyglycerol ester.

[0055] A transparent shower gel was prepared according to the formula in Table 1 below, and the oil beads of Examples 1 to 3 and Comparative Examples 1 to 4 were added to the transparent shower gel and stirred evenly to obtain a transparent shower gel containing oil beads.

[0056] Table 1

[0057] raw material Mass percentage / % Sodium Laureth Sulfate 3 Sodium α-olefin sulfonate 10 Disodium EDTA 0.1 Coconut oil fatty acid diethanolamide 3 Coconut fatty acid monoethanolamide 0.6 Citric acid 0.1 essence 0.2 Sodium chloride 3.5 Deionized water To 100

[0058] Three portions of each of the transparent shower gels of Examples 1 to 3 and Comparative Examples 1 to 4 were taken and placed in a constant temperature box at room temperature, 4500Lx light and 48°C for 30 days, and then the high performance liquid chromatography (HPLC) method was used to determine the proportion of the functional active ingredients relative to the amount of component addition. The measurement results are shown in Table 2.

[0059] Three portions of each of the transparent shower gels of Examples 1 to 3 and Comparative Examples 1 to 4 were taken and placed in a 25°C constant temperature box, a -15°C refrigerator and a 50°C constant temperature box for 30 days respectively. The transparent shower gels were then subjected to sensory evaluation at room temperature. The results are shown in Table 2.

[0060] Table 2

[0061]

[0062] As can be seen from Table 2, the cosmetic oil beads prepared in Examples 1 to 3 of the present invention can maintain the effectiveness of the functional active ingredients at room temperature, light environment (4500Lx) and high temperature environment (48°C), wherein the oil beads of Example 3 have a retention rate of 98.1% of the functional active ingredients at room temperature, 87.2% of the functional active ingredients in the light environment, and 93.6% of the functional active ingredients in the high temperature environment; the appearance stability and skin feel experience can be maintained at room temperature (25°C), low temperature (-15°C) and high temperature (50°C).

[0063] The oil droplets prepared in Comparative Examples 1 to 4 can maintain a good retention rate of functional active ingredients at room temperature, but the functional active ingredients volatilize and decompose more seriously in a light environment and high temperature. Among them, Comparative Example 1 lacks base oil. It can be seen that using squalane, jojoba oil and caprylic / capric triglyceride as base oil can promote the oil droplet structure to encapsulate functional active ingredients, improve the product skin feel experience, and the structural stability and antioxidant capacity in a light environment and a high temperature environment; Comparative Examples 2 and 3 lack transparent vaseline or cetostearyl alcohol and beeswax. It can be seen that using transparent vaseline, cetostearyl alcohol and beeswax as a forming agent can effectively lock the functional active ingredients of the oil droplets and improve the oil droplet encapsulation performance; Compared with Comparative Example 4, Example 3 adds polyglycerol ester as an emulsifier, which can form a stable oil-water interface and promote the encapsulation performance of the oil droplets.

[0064] The present invention forms a stable oil droplet structure through beeswax, cetostearyl alcohol and transparent vaseline, provides a good physical barrier for the oil droplets, can effectively prevent the oil droplets from stratification and rupture during storage, and ensures the long-term stability of the product; uses squalane, jojoba oil and caprylic / capric triglyceride to promote the encapsulation of functional active ingredients, can gradually release functional active ingredients during use, polyglycerol ester ensures that the oil phase and the water phase are evenly dispersed to form a stable emulsified system; and the oil droplet formula of the present invention uses natural oils and non-irritating ingredients to improve the mildness of the product. At the same time, the preparation process of the present invention is simple, conducive to industrial production, and the oil droplets obtained by cooling are solid particles, which are easy to transport and sell.

[0065] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A method for preparing oil droplets for cosmetics, characterized in that: Cosmetic oil beads include the following raw material components by mass: 5 to 20 parts of squalane, 5 to 20 parts of jojoba oil, 5 to 20 parts of caprylic / capric triglyceride, 10 to 20 parts of transparent petrolatum, 1 to 5 parts of cetostearyl alcohol, 1 to 5 parts of beeswax, 2 to 10 parts of polyglycerol esters, and 20 to 50 parts of functional active ingredients; The preparation method comprises the following steps: Step 1: Add beeswax, cetostearyl alcohol and transparent vaseline into a container and heat to 60°C to 80°C to completely melt the components, add squalane, jojoba oil and caprylic / capric triglyceride, stir while keeping warm, then add polyglycerol ester, continue to stir while keeping warm until evenly dispersed, to obtain an emulsified mixture A; Step 2: After the emulsified mixture A of step 1 is cooled to 55° C. to 60° C., the functional active ingredients are added and stirred continuously until the functional active ingredients are evenly dispersed to obtain an emulsified mixture B; Step 3: drip the emulsified mixture B of step 2 into the cooling liquid through a pill dropping device, let it stand for 3 to 5 minutes, and filter to obtain oil droplets for cosmetics.

2. The method for preparing cosmetic oil droplets according to claim 1, characterized in that: The cosmetic oil droplets include the following raw material components in parts by mass: 10 parts of squalane, 13 parts of jojoba oil, 20 parts of caprylic / capric triglyceride, 15 parts of transparent vaseline, 2 parts of cetostearyl alcohol, 3 parts of beeswax, 5 parts of polyglycerol esters, and 32 parts of functional active ingredients.

3. The method for preparing cosmetic oil beads according to claim 1, characterized in that: The heating temperature of step 1 is 70°C, and the cooling temperature of step 2 is 58°C.

4. The method for preparing cosmetic oil beads according to claim 1, characterized in that: The cooling liquid is water or ethanol aqueous solution.

5. The method for preparing cosmetic oil beads according to claim 1, characterized in that: The temperature of the cooling liquid is 4°C to 10°C.

6. The method for preparing cosmetic oil beads according to claim 1, characterized in that: The diameter of the cosmetic oil droplets is 0.5 mm to 5 mm.

7. The method for preparing cosmetic oil beads according to claim 1, characterized in that: The functional active ingredient is a lipophilic active ingredient, and the lipophilic active ingredient includes one or more of an antibacterial active ingredient, a whitening active ingredient, an anti-aging active ingredient, an antipruritic active ingredient, and a deodorizing active ingredient.

8. The method for preparing cosmetic oil beads according to claim 1, characterized in that: The cosmetic oil droplets further include one or more of essences, colorants, antioxidants and preservatives.

9. Use of cosmetic oil droplets prepared by the preparation method according to any one of claims 1 to 8 in daily cosmetics, characterized in that: The daily cosmetics include facial cleansing milk, shower gel, shampoo, essence and conditioner.

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