Soothing, makeup-keeping and sunscreen makeup base cream and preparation method thereof

Abstract

The invention relates to the field of cosmetics for skin, in particular to soothing, makeup-holding and sun-screening makeup base cream and a preparation method of the soothing, makeup-holding and sun-screening makeup base cream. The sun screen is prepared from the following raw materials: butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenyl benzimidazole sulfonic acid, butyl octanol salicylate, diisopropyl sebacate, diisopropyl adipate, a vinyl polydimethylsiloxane / polymethylsilane silsesquioxane cross-linked polymer, ethylhexyl triazinone and p-hydroxyacetophenone, and the sun screen is prepared from the following raw materials: ethylene glycol, isododecane, butyl octanol salicylate, phenyl benzimidazole sulfonic acid, butyl octanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane and polymethylsilane silsesquioxane. The traditional Chinese medicine composition is prepared from the following raw materials: disteardimonium hectorite, aluminum hydroxide, kava pepper leaf / root / stem extract, radix gentianae extract and water. The make-up base prepared by the invention has good soothing, makeup-holding and sunscreen effects, has excellent free radical resisting and moisturizing effects, is easy to smear, and improves the skin glossiness to a certain extent.

Description

Technical Field

[0001] The present invention relates to the field of skin cosmetics, and in particular to a soothing, long-lasting, sun-proof isolation cream and a preparation method thereof. Background Art

[0002] ‌‌Sealant‌ is a cosmetic product that is mainly used to create a protective barrier between makeup and skin to protect the skin from harmful external substances. Its main ingredients include sunscreen, antioxidant and nutritional moisturizing active ingredients, which can isolate ultraviolet rays, pollutants and radiation, while providing moisturizing and retouching effects.

[0003] Invention patent CN114617799B discloses a water-soluble primer for skin care, brightening and improving makeup sticking and its preparation method. The primer uses raw materials including, by weight, 50-70 parts of water, 1-5 parts of inorganic salts, 22-50 parts of moisturizers, 3.5-65 parts of emollients, and 0.6-30 parts of skin conditioners; the moisturizer is a combination of gluconolactone, polyols, and sodium hyaluronate. In this patent, a large amount of synthetic moisturizers are needed to maintain the effective moisturizing effect of the primer; and using a small amount of such moisturizers will result in poor moisturizing effect.

[0004] Invention patent CN113520935B discloses a colorful multifunctional isolation cream and its preparation method, which mainly includes: 5-10 parts of chamomile extract, 5-10 parts of licorice extract, 5-10 parts of grape seed oil, 5-10 parts of arbutin, 1-5 parts of hyaluronic acid, 1-5 parts of vitamin E, 1-5 parts of ginsenoside, 10-15 parts of shea butter, 5-10 parts of surface-modified zinc oxide / attapulgite-based Maya blue composite pigment, and 20-30 parts of distilled water. Although it uses a large amount of plant extracts, the process of the extracts is not optimized, and no long-lasting makeup stabilizing ingredients are added, so the obtained isolation cream has limited anti-inflammatory, soothing and long-lasting makeup effects.

[0005] In view of the wide variety of isolation creams on the market, but the mixed functions are uneven; therefore, providing an isolation cream with excellent soothing, long-lasting, sun protection, and good moisturizing and anti-oxidation effects under the premise of using low-content moisturizing ingredients is a technical problem that needs to be solved. Summary of the invention

[0006] In view of the above technical problems, the present invention provides a soothing, long-lasting, sun-protective isolation cream and a preparation method thereof.

[0007] The invention provides a soothing, long-lasting and sun-proof isolation cream, which is characterized by comprising polyol, emollient, sunscreen, suspending agent, stabilizer, oil-controlling agent, preservative and water.

[0008] Further, the polyol includes butanediol.

[0009] Further, the emollient includes isododecane, dimethicone, diisopropyl sebacate and diisopropyl adipate.

[0010] Further, the sunscreen includes ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate and ethylhexyl triazone.

[0011] Further, the suspending agent includes disteardimethylammonium hectorite.

[0012] Further, the stabilizer includes vinyl dimethicone / polymethylsilane silsesquioxane crosspolymer.

[0013] Further, the preservative includes p-hydroxyacetophenone.

[0014] Further, the oil control agent includes aluminum hydroxide.

[0015] The soothing, long-lasting and sunscreen isolation cream provided by the present invention comprises, by mass percentage, 12-15% butylene glycol, 0.5-5% isododecane, 1-4% polydimethylsiloxane, 0.5-2.5% ethylhexyl salicylate, 0.5-1% phenylbenzimidazole sulfonic acid, 0.5-1% butyloctanol salicylate, 1-4% diisopropyl sebacate, 1-4% diisopropyl adipate, 4-8% vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosslinked polymer, 0.5-1% ethylhexyl triazone, 0.001-0.2% p-hydroxyacetophenone, 2-6% disteardimonium hectorite, 0.5-2% aluminum hydroxide and the balance water.

[0016] Furthermore, the amount of butanediol may be 12.5%, 13%, 13.5%, 14%, 14.5% or 15%.

[0017] Furthermore, the amount of isododecane can be 0.5%, 1%, 2%, 3%, 3.5%, 4%, 4.5%, or 5%.

[0018] Furthermore, the amount of polydimethylsiloxane can be 1%, 2%, 2.5%, 3%, 3.5%, or 4%.

[0019] Furthermore, the amount of ethylhexyl salicylate can be 1%, 1.5%, 1.8%, 2%, 2.2%, or 2.5%.

[0020] Furthermore, the dosage of phenylbenzimidazole sulfonic acid can also be 0.6%, 0.8%, or 0.9%.

[0021] Furthermore, the dosage of butyl octanol salicylate can also be 0.6%, 0.8%, or 0.9%.

[0022] Furthermore, the amount of diisopropyl sebacate can be 1%, 2%, 2.5%, 3%, 3.5%, or 4%.

[0023] Furthermore, the amount of diisopropyl adipate can also be 1%, 2%, 2.5%, 3%, 3.5%, or 4%.

[0024] Furthermore, the amount of vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosslinked polymer can also be 5%, 6%, 6.5%, 7%, 7.5%, or 8%.

[0025] Furthermore, the dosage of ethylhexyl triazone can also be 0.6%, 0.8%, or 0.9%.

[0026] Furthermore, the amount of p-hydroxyacetophenone can be 0.002%, 0.005%, 0.008%, 0.01%, 0.05%, 0.08%, 0.1%, or 0.2%.

[0027] Furthermore, the amount of disteardimethylammonium hectorite can also be 2%, 3%, 4%, 4.5%, 5%, 5.5%, and 6%.

[0028] Furthermore, the amount of aluminum hydroxide can be 0.6%, 0.8%, 1%, 1.2%, 1.5%, or 2%.

[0029] Furthermore, the soothing, long-lasting, sunscreen isolation cream further comprises, by mass percentage, 1-3% of Kava Piper methysticum leaf / root / stem extract and 0.8-2.8% of Gentiana gentiana extract.

[0030] Furthermore, the amount of the Piper melongena leaf / root / stem extract can be 1%, 1.5%, 1.8%, 2%, 2.2%, 2.5%, or 3%.

[0031] Furthermore, the dosage of gentian extract can be 0.8%, 1%, 1.5%, 1.8%, 2%, 2.2%, 2.5%, and 2.8%.

[0032] The present invention provides a method for preparing a Piper methysticum leaf / root / stem extract, comprising the following steps: S1: Mix the leaves, roots and stems of Piper methysticum in a mass ratio of 1:0.5-1:0.2-0.5, grind to obtain a grinded material, add water 8-40 times the mass of the grinded material to boil, then stir at 60-80° C. for 1-3 hours, and cool to obtain a cooled material; S2: adding ginger protease and serrapeptase to the cooled material, performing enzymolysis at 40-60° C. for 2-6 hours, inactivating the enzymes, and obtaining an enzymolysis product; wherein the total amount of ginger protease and serrapeptase added to each gram of the cooled material is 1500-2000 U, and the ratio of ginger protease to serrapeptase is 2-4:1; S3: adding anhydrous ethanol to the enzymatic hydrolysate to adjust the ethanol mass concentration to 40-60%, heating to 50-60° C. and stirring to perform extraction for 2-5 hours, filtering, concentrating, and drying to obtain the Piper mesona leaf / root / stem extract.

[0033] The present invention also provides a method for preparing a gentian extract, comprising the following steps: (1) Crush the plant gentian to obtain plant powder, add 50-70% ethanol aqueous solution with a mass concentration of 10-40 times the mass of the powder, heat and stir at 50-65° C. for 4-8 hours to obtain material A; (2) Material A is concentrated under reduced pressure to a mass of 0.25-0.45 times the mass of the plant powder to obtain a concentrate, a composite extractant is added in an amount of 20-40 times the mass of the concentrate, extraction is performed at 40-50° C. for 2-6 hours, stratification is allowed to stand, the organic phase is taken, and the extractant component is concentrated under reduced pressure until no component is detected to obtain the gentian extract; The composite extractant is composed of an organic phase and an aqueous phase in a mass ratio of 3-5:1; the organic phase is composed of ethyl acetate and cyclohexane in a mass ratio of 1:0.5-0.8, and the aqueous phase is water.

[0034] The present invention also provides a method for preparing the soothing, long-lasting, sunscreen isolation cream, comprising the following steps: Step 1: Add disteardimethylammonium hectorite and water into a container, heat to 50-70° C., and stir at 300-3000 rpm for 0.1-3 hours to obtain a mixture 1; Step 2: adding butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, and p-hydroxyacetophenone into a container, heating to 70-85° C., stirring at 50-600 rpm for 0.1-2 hours, to obtain a mixture 2; Step 3: Add mixture 1 to mixture 2, and stir at 60-400 rpm for 0.1-1 hour; cool, add the remaining raw materials, continue stirring for 0.1-1 hour, stand for aging, and sterilize to obtain the soothing, long-lasting, sunscreen isolation cream.

[0035] The present invention has the following beneficial effects compared with the prior art: The invention adopts ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate and ethylhexyl triazone as sunscreen active ingredients to give the isolation cream excellent sunscreen effect; adopts isododecane, polydimethylsiloxane, diisopropyl sebacate and diisopropyl adipate to give the isolation cream a skin moisturizing effect; adopts a suspending agent and a stabilizer to make the isolation cream stable, easy to apply and long-lasting; adopts an oil-controlling agent, aluminum hydroxide, to give the isolation cream a refreshing and oil-absorbing effect, and at the same time increase the makeup application and makeup-lasting effect of the isolation cream to a certain extent; adopts kava pepper leaf / root / stem extract and gentian extract to give the isolation cream an anti-inflammatory and skin-soothing effect, and at the same time further enhances the skin moisturizing and glossiness improving effects of the isolation cream.

[0036] The invention adopts hot water dissolution, combined enzymolysis of ginger protease and serrapeptase, and ethanol aqueous solution extraction, and the prepared Kava Piper methysticum leaf / root / stem extract has a good free radical resistance effect and excellent skin moisturizing effect. The synergistic combination of ginger protease and serrapeptase and the selection of a ratio of 2-4:1 and the ethanol solution extraction concentration have a great influence on the free radical scavenging and moisturizing effect of the Kava Piper methysticum leaf / root / stem extract.

[0037] The gentian extract prepared by ethanol aqueous solution extraction and composite extractant extraction has good free radical resistance and moisturizing effects. The selection of ethanol aqueous solution concentration and the selection and proportion of the composite extractant organic phase have a great influence on the efficacy of the gentian extract.

[0038] The isolation cream prepared by the invention has good sun protection, moisturizing, smearing and skin gloss improvement effects.

[0039] The preparation method of the invention is simple, the isolation cream has excellent effect, and has good application prospect. DETAILED DESCRIPTION

[0040] The present invention will be described below in conjunction with specific embodiments, and various effects of the present invention will be more clearly presented. It should be understood by those skilled in the art that these specific embodiments are used to illustrate the present invention, rather than to limit the present invention. Unless otherwise specified, the raw materials used in the specific embodiments of the present invention can be obtained through common commercial channels.

[0041] 1. Preparation of plant extract raw materials 1. Preparation of Kava Leaf / Root / Stem Extract Kava Leaf / Root / Stem Extract I: The preparation method is as follows: S1: Mix the leaves, roots and stems of Piper methysticum in a mass ratio of 1:0.8:0.3, grind to obtain a grinded material, add water 30 times the mass of the grinded material to boil, then keep warm at 65° C. and stir at 60 rpm for 2 hours, cool to room temperature, and obtain a cooled material; S2: adding ginger protease and serrapeptase to the cooled material, performing enzymolysis at 50°C for 4.5 hours (stirring at 60 rpm), inactivating the enzymes, and obtaining an enzymolysis product; wherein the total amount of ginger protease and serrapeptase added to each gram of the cooled material is 1800U, and the ratio of ginger protease to serrapeptase is 3:1 (i.e., the amounts of ginger protease and serrapeptase added to each gram of the cooled material are 1350U and 450U, respectively); S3: adding anhydrous ethanol to the hydrolysate to adjust the ethanol concentration to 52%, heating at 57°C and stirring at 70 rpm for extraction for 4.2 hours, filtering with a 0.2 μm filter membrane, concentrating under reduced pressure at 55°C to a water content of 27.6%, and freeze-drying at -42°C to a water content of 3.16%, to obtain the Piper mesenteriae leaf / root / stem extract.

[0042] Kava Leaf / Root / Stem Extract II: The preparation method is as follows: S1: Mix the leaves, roots and stems of Piper methysticum in a mass ratio of 1:1:0.2, grind to obtain a grinded material, add water 32 times the mass of the grinded material to boil, then keep warm at 62° C. and stir at 60 rpm for 2.2 hours, cool to room temperature, and obtain a cooled material; S2: adding ginger protease and serrapeptase to the cooled material, performing enzymolysis at 52°C for 4.8 hours (stirring at 60 rpm), inactivating the enzymes, and obtaining an enzymolysis product; wherein the total amount of ginger protease and serrapeptase added to each gram of the cooled material is 1820U, and the ratio of ginger protease to serrapeptase is 2.5:1 (i.e., the amounts of ginger protease and serrapeptase added to each gram of the cooled material are 1300U and 520U, respectively); S3: adding anhydrous ethanol to the hydrolysate to adjust the ethanol concentration to 45%, heating to 55°C and stirring at 70rpm for extraction for 3.9 hours, filtering with a 0.2 μm filter membrane, concentrating under reduced pressure at 55°C to a water content of 25.4%, and freeze-drying at -40°C to a water content of 3.09%, to obtain a Piper mesenteriae leaf / root / stem extract.

[0043] Kava Leaf / Root / Stem Extract III: The difference from Kava Piper methysticum leaf / root / stem extract I is that: step S2: adding ginger protease to the cooled material, performing enzymolysis at 50°C for 4.5 hours (stirring at 60 rpm), inactivating the enzyme, and obtaining an enzymolysis product; wherein the amount of ginger protease added to each gram of the cooled material is 1800 U. The rest is the same as Kava Piper methysticum leaf / root / stem extract I.

[0044] Kava Leaf / Root / Stem Extract IV: The difference from Kava Piper methysticum leaf / root / stem extract I is that: step S2: adding serrapeptase to the cooled material, performing enzymolysis at 50°C for 4.5 hours (stirring at 60 rpm), inactivating the enzyme, and obtaining an enzymolysis product; wherein the amount of serrapeptase added to each gram of the cooled material is 1800 U. The rest is the same as Kava Piper methysticum leaf / root / stem extract I.

[0045] Kava Leaf / Root / Stem Extract V: The difference from Kava Piper melongena leaf / root / stem extract I is that in step S2, the total amount of ginger protease and serrapeptase added to each gram of the cooled material is 1800U, and the ratio of ginger protease to serrapeptase is 0.8:1 (i.e., the amounts of ginger protease and serrapeptase added to each gram of the cooled material are 800U and 1000U, respectively). The rest is the same as Kava Piper melongena leaf / root / stem extract I.

[0046] Kava Leaf / Root / Stem Extract VI: The difference from Kava Piper methysticum leaf / root / stem extract I is that in step S2, the total amount of ginger protease and serrapeptase added to each gram of the cooling material is 1800U, and the ratio of ginger protease to serrapeptase is 8:1 (i.e., the amounts of ginger protease and serrapeptase added to each gram of the cooling material are 1600U and 200U, respectively). The rest is the same as Kava Piper methysticum leaf / root / stem extract I.

[0047] Kava Leaf / Root / Stem Extract VII: The difference from the Kava Piper methysticum leaf / root / stem extract I is that: step S2: adding anhydrous ethanol to the enzymatic hydrolysate to adjust the ethanol mass concentration to 20%. The rest is the same as the Kava Piper methysticum leaf / root / stem extract I.

[0048] Kava Leaf / Root / Stem Extract VIII: The difference from the Kava Piper methysticum leaf / root / stem extract I is that: step S2: adding anhydrous ethanol to the enzymatic hydrolysate to adjust the ethanol mass concentration to 85%. The rest is the same as the Kava Piper methysticum leaf / root / stem extract I.

[0049] 2. Preparation of Gentiana extract Gentiana Extract I: The preparation method is as follows: (1) Crush the gentian root to obtain plant powder, add 58% ethanol aqueous solution with a mass concentration of 27 times the mass of the powder, heat at 60°C and stir at 70 rpm for 6.2 hours to obtain material A; (2) Material A was concentrated under reduced pressure at 57° C. to a mass of 0.32 times that of the plant powder to obtain a concentrate, and a composite extractant of 32 times the mass of the concentrate was added, extracted at 48° C. and stirred at 50 rpm for 4.7 hours, allowed to stand for 1 hour, and the organic phase was taken and concentrated under reduced pressure at 48° C. until the extractant component could not be detected, thereby obtaining the gentian extract; The composite extractant is composed of an organic phase and an aqueous phase in a mass ratio of 4.5:1; the organic phase is composed of ethyl acetate and cyclohexane in a mass ratio of 1:0.75, and the aqueous phase is water.

[0050] Gentiana Extract II: The preparation method is as follows: (1) Crush the gentian root to obtain plant powder, add 65% ethanol aqueous solution with a mass concentration of 30 times the mass of the powder, heat at 60°C and stir at 70 rpm for 6.5 hours to obtain material A; (2) Material A was concentrated under reduced pressure at 57° C. to a mass of 0.34 times that of the plant powder to obtain a concentrate, and a composite extractant of 35 times the mass of the concentrate was added, extracted at 48° C. and stirred at 50 rpm for 5 hours, allowed to stand for 1 hour, and the organic phase was taken and concentrated under reduced pressure at 48° C. until the extractant component could not be detected, thereby obtaining the gentian extract; The composite extractant is composed of an organic phase and an aqueous phase in a mass ratio of 3:1; the organic phase is composed of ethyl acetate and cyclohexane in a mass ratio of 1:0.5, and the aqueous phase is water.

[0051] Gentiana Extract III: The difference from the gentian extract I is that in step (1), anhydrous ethanol is added to the enzymatic hydrolysate to adjust the ethanol mass concentration to 30%. The rest is the same as the gentian extract I.

[0052] Gentiana Extract IV: The difference from the gentian extract I is that in step (1), anhydrous ethanol is added to the enzymatic hydrolysate to adjust the ethanol mass concentration to 87%. The rest is the same as the gentian extract I.

[0053] Gentiana Extract V: The difference from the gentian extract I is that in step (2), the organic phase is ethyl acetate. The rest is the same as the gentian extract I.

[0054] Gentiana Extract VI: The difference from the gentian extract I is that in step (2), the organic phase is cyclohexane. The rest is the same as the gentian extract I.

[0055] Gentiana Extract VII: The difference from the gentian extract I is that in step (2), the organic phase is chloroform. The rest is the same as the gentian extract I.

[0056] Gentiana Extract VIII: The difference from the gentian extract I is that in step (2), the organic phase is composed of ethyl acetate and cyclohexane in a mass ratio of 1:0.1. The rest is the same as the gentian extract I.

[0057] Gentiana Extract IX: The difference from the gentian extract I is that in step (2), the organic phase is composed of ethyl acetate and cyclohexane in a mass ratio of 1:1.5. The rest is the same as the gentian extract I.

[0058] 2. Extract Effect Verification DPPH resistance test: Mix DPPH with 65% ethanol to prepare a DPPH solution with a DPPH concentration of 0.12 mg / mL. Take the above-mentioned Kava Piper methysticum leaf / root / stem extract or gentian extract, dilute it with 65% ethanol to a mass concentration of 0.5% to obtain an extract dilution, take 0.5 mL of the dilution and mix it with 2.5 mL of DPPH solution, keep it away from light for 30 minutes, and obtain the experimental group sample. Take 0.5 mL of 65% ethanol and mix it with 2.5 mL of DPPH solution, keep it away from light for 30 minutes, and obtain the blank group sample. Use a UV-visible spectrophotometer to measure the absorbance A of each group. 517 , and the average value was obtained by three parallel measurements. Calculate the DPPH resistance rate % = (blank group A 517 Value-Experimental Group A 517 ) / Blank Group A 517 ×100%.

[0059] Moisturizing ability test: Volunteers aged 30-50 years old with no history of allergy to alcohol were selected and randomly divided into 17 groups, with 3 males and 3 females in each group. The 3cm*3cm skin of the volunteer's wrist was selected as the test area, and the diluent of the above extract (70% alcohol was used to dilute the extract to a mass concentration of 5%) was evenly applied to the test area, and the amount used was 0.32g. The skin moisture content data of the test area was collected before the use of the sample, 3 hours after the use of the sample, and 10 hours after the use of the sample; the specific collection operation was: using a skin moisture tester to collect moisture content data, and taking the average value of the data at 5 points in the collection area, the test environment was 24℃ and the humidity was 57%. Then calculate the increase rate Q of the skin moisture content of the sample for 3 hours and 10 hours compared with the moisture content before the test. The calculation formula of the increase rate Q is 100%×(skin moisture content after use-skin moisture content before use) / skin moisture content before use.

[0060] The results of the above tests are shown in Table 1.

[0061] Table 1: DPPH resistance and moisturizing ability

[0062] According to the test content in Table 1, the present invention adopts hot water dissolution, ginger protease and serrapeptase combined enzymolysis, and ethanol aqueous solution extraction, and the prepared Piper mesenteriae leaf / root / stem extract has a good free radical resistance effect and excellent skin moisturizing effect. And according to the test data of its extract, it can be seen that the synergistic combination of ginger protease and serrapeptase and the selection of a ratio of 2-4:1 and the ethanol solution extraction concentration have a great influence on the free radical scavenging and moisturizing effect of the Piper mesenteriae leaf / root / stem extract.

[0063] According to the test contents in Table 1, the gentian extract prepared by ethanol aqueous solution extraction and composite extractant extraction in the present invention has good free radical resistance and moisturizing effects. And according to the test data of the extract, it can be seen that the selection of ethanol aqueous solution concentration and the selection and proportion of the organic phase of the composite extractant have a great influence on the efficacy of the gentian extract.

[0064] 3. Preparation and application test of isolation cream 1. Preparation of isolation cream Cream 1 is prepared as follows: The raw material information is as follows: by mass percentage: 14% 1,3-butylene glycol, 3% isododecane, 2% dimethicone, 1% ethylhexyl salicylate, 0.8% phenylbenzimidazole sulfonic acid, 0.8% butyloctanol salicylate, 2% diisopropyl sebacate, 2% diisopropyl adipate, 6% vinyl dimethicone / polymethylsilane silsesquioxane crosspolymer, 0.8% ethylhexyl triazone, 0.05% parahydroxyacetophenone, 4.8% disteardimonium hectorite, 0.6% aluminum hydroxide, 2% kava leaf / root / stem extract 1 and 1.8% gentian extract 1 and the rest water.

[0065] Disteardimethylammonium hectorite and water were added into a container, heated to 60° C., and stirred at 1000 rpm for 0.5 hours to obtain a mixture 1; 1,3-Butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, and p-hydroxyacetophenone were added into a container, heated to 82° C., and stirred at 90 rpm for 0.6 hours to obtain a mixture 2; The mixture 1 was added to the mixture 2, and stirred at 200 rpm for 0.5 hour; the temperature was lowered to 50° C., the remaining raw materials were added, and the stirring was continued for 0.4 hour, and the mixture was allowed to stand for 2 hours and sterilized to obtain the isolation cream.

[0066] Base cream 2, which is prepared as follows: The raw material information is as follows: by mass percentage: 13.5% 1,3-butylene glycol, 3.2% isododecane, 1.8% dimethicone, 1.2% ethylhexyl salicylate, 0.6% phenylbenzimidazole sulfonic acid, 0.7% butyloctanol salicylate, 2.2% diisopropyl sebacate, 2.2% diisopropyl adipate, 6.8% vinyl dimethicone / polymethylsilane silsesquioxane crosspolymer, 0.9% ethylhexyl triazone, 0.05% p-hydroxyacetophenone, 5% disteardimonium hectorite, 0.4% aluminum hydroxide, 1.5% kava leaf / root / stem extract 2 and 2.4% gentian extract 2 and the rest water.

[0067] Disteardimethylammonium hectorite and water were added into a container, heated to 62° C., and stirred at 1000 rpm for 0.6 hours to obtain a mixture 1; 1,3-Butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, and p-hydroxyacetophenone were added into a container, heated to 84° C., and stirred at 100 rpm for 0.5 hour to obtain a mixture 2; The mixture 1 was added to the mixture 2, and stirred at 150 rpm for 0.7 hours; the temperature was lowered to 52° C., the remaining raw materials were added, and stirring was continued for 0.5 hours. The mixture was allowed to stand for 2.2 hours and sterilized to obtain the isolation cream.

[0068] Cream 3, which is prepared as follows: The raw material information is as follows: by mass percentage: 2% 1,3-butylene glycol, 3% isododecane, 2% polydimethicone, 1% ethylhexyl salicylate, 0.8% phenylbenzimidazole sulfonic acid, 0.8% butyloctanol salicylate, 2% diisopropyl sebacate, 2% diisopropyl adipate, 0.5% vinyl dimethicone / polymethylsilane silsesquioxane crosspolymer, 0.8% ethylhexyl triazone, 0.05% p-hydroxyacetophenone, 0.2% disteardimonium hectorite, 0.6% aluminum hydroxide, 0.2% kava pepper leaf / root / stem extract 1 and 0.2% gentian extract 1 and the balance water. The rest are the same as the isolation cream 1.

[0069] 2. Application test of isolation cream Thirty volunteers aged 25-40 with healthy skin were selected and randomly divided into groups, with 10 people in each group, 5 men and 5 women. The volunteers in each group used the above-mentioned isolation cream for application test, taking 1 gram of isolation cream and applying it evenly on the face once a day for 7 consecutive days, and then scoring the sun protection, moisturizing, spreadability and improvement of skin gloss. The highest score for each test is 5 points and the lowest score is 0 points. The average score of each group test is calculated. See Table 2 for details.

[0070] Table 2: Base Cream Test Results

[0071] According to the test in Table 2, the isolation cream prepared by the present invention has good sun protection, moisturizing, spreadability and skin gloss improvement effects. The reduction in the amount of raw materials such as butylene glycol, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosslinked polymer, and disteardimethylammonium hectorite has a certain impact on sun protection, moisturizing, spreadability and skin gloss improvement, especially the spreadability.

[0072] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A soothing, long-lasting, sunscreen isolation cream, characterized in that: Includes polyols, emollients, sunscreens, suspending agents, stabilizers, oil control agents, preservatives and water.

2. The soothing, long-lasting, sunscreen isolation cream according to claim 1, characterized in that: Polyols include butanediol; And / or, the emollient includes isododecane, dimethicone, diisopropyl sebacate and diisopropyl adipate.

3. The soothing, long-lasting, sunscreen isolation cream according to claim 1, characterized in that: Sunscreens include ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, and ethylhexyl triazone.

4. The soothing, long-lasting, sunscreen isolation cream according to claim 1, characterized in that: Suspending agents include disteardimethylammonium hectorite; And / or, the stabilizer comprises vinyl dimethicone / polymethylsilane silsesquioxane crosspolymer.

5. The soothing, long-lasting, sunscreen isolation cream according to claim 1, characterized in that: Preservatives include parahydroxyacetophenone; And / or, the oil control agent includes aluminum hydroxide.

6. The soothing, long-lasting, sun-protective isolation cream according to any one of claims 1 to 5, characterized in that: According to mass percentage, it includes: 12-15% butylene glycol, 0.5-5% isododecane, 1-4% polydimethylsiloxane, 0.5-2.5% ethylhexyl salicylate, 0.5-1% phenylbenzimidazole sulfonic acid, 0.5-1% butyloctanol salicylate, 1-4% diisopropyl sebacate, 1-4% diisopropyl adipate, 4-8% vinyl polydimethylsiloxane / polymethylsilane silsesquioxane cross-linked polymer, 0.5-1% ethylhexyl triazone, 0.001-0.2% p-hydroxyacetophenone, 2-6% disteardimonium hectorite, 0.5-2% aluminum hydroxide and the balance water.

7. The soothing, long-lasting, sunscreen isolation cream according to claim 7, characterized in that: According to the mass percentage, it also includes 1-3% of Kava leaf / root / stem extract and 0.8-2.8% of gentian extract.

8. The soothing, long-lasting, sun-protective isolation cream according to claim 7, characterized in that: The method for preparing the Kava leaf / root / stem extract comprises: S1: Mix the leaves, roots and stems of Piper methysticum in a mass ratio of 1:0.5-1:0.2-0.5, grind to obtain a grinded material, add water 8-40 times the mass of the grinded material to boil, then stir at 60-80° C. for 1-3 hours, and cool to obtain a cooled material; S2: adding ginger protease and serrapeptase to the cooled material, performing enzymolysis at 40-60° C. for 2-6 hours, inactivating the enzymes, and obtaining an enzymolysis product; wherein the total amount of ginger protease and serrapeptase added to each gram of the cooled material is 1500-2000 U, and the ratio of ginger protease to serrapeptase is 2-4:1; S3: adding anhydrous ethanol to the enzymatic hydrolysate to adjust the ethanol mass concentration to 40-60%, heating to 50-60° C. and stirring to perform extraction for 2-5 hours, filtering, concentrating, and drying to obtain the Piper mesona leaf / root / stem extract.

9. The soothing, long-lasting, sun-protective isolation cream according to claim 7, characterized in that: The preparation method of gentian extract comprises: (1) Crush the plant gentian to obtain plant powder, add 50-70% ethanol aqueous solution with a mass concentration of 10-40 times the mass of the powder, heat and stir at 50-65° C. for 4-8 hours to obtain material A; (2) Material A is concentrated under reduced pressure to a mass of 0.25-0.45 times the mass of the plant powder to obtain a concentrate, a composite extractant is added in an amount of 20-40 times the mass of the concentrate, extraction is performed at 40-50° C. for 2-6 hours, stratification is allowed to stand, the organic phase is taken, and the extractant component is concentrated under reduced pressure until no component is detected to obtain the gentian extract; The composite extractant is composed of an organic phase and an aqueous phase in a mass ratio of 3-5:1; the organic phase is composed of ethyl acetate and cyclohexane in a mass ratio of 1:0.5-0.8, and the aqueous phase is water.

10. A method for preparing the soothing, long-lasting, sun-proof isolation cream according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Add disteardimethylammonium hectorite and water into a container, heat to 50-70° C., and stir at 300-3000 rpm for 0.1-3 hours to obtain a mixture 1; Step 2: adding butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, and p-hydroxyacetophenone into a container, heating to 70-85° C., stirring at 50-600 rpm for 0.1-2 hours, to obtain a mixture 2; Step 3: Add mixture 1 to mixture 2, and stir at 60-400 rpm for 0.1-1 hour; cool, add the remaining raw materials, continue stirring for 0.1-1 hour, stand for aging, and sterilize to obtain the soothing, long-lasting, sunscreen isolation cream.

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