A kind of BB cream and preparation method thereof

Abstract

The invention discloses a BB cream and a preparation method thereof, comprising the following components: an elastic colorant, hydrophobic porous silica, an emulsifier, grease, a film former, a thickener, a moisturizer, an antioxidant, a fragrance, a preservative, disodium EDTA, and water; the preparation method comprises: dissolving amino silicone oil, a dialdehyde compound, and p-aminobenzoic acid in a solvent, then adding a colorant for ultrasonic dispersion to obtain a suspension, and further spray drying, washing, and ordinary drying to obtain an elastic colorant. The BB cream has the advantages of light makeup, high concealing power, and long-lasting fit.

Description

Technical Field

[0001] The invention belongs to the technical field of cosmetics, and particularly relates to a BB cream and a preparation method thereof. Background Art

[0002] BB cream, short for BlemishBalm, is mainly used to conceal blemishes, adjust skin tone, protect against the sun, and refine pores, creating a basic nude makeup effect. It originated in Germany and was originally used in medical cosmetology, named "scar moisturizer". It is mainly used to conceal blemishes, adjust skin tone, protect against the sun, and refine pores. After undergoing changes again and again, it has been combined with skin care. From the initial use of BB cream on the face that was not breathable, dried the skin, and even caused acne on the skin after long-term use, it has become more breathable, moisturizing, and easier to remove makeup.

[0003] Since BB cream focuses on a light and nude makeup effect, the BB cream currently on the market does not have a strong concealing effect; in addition, the evaporation of solvents brings a light and refreshing feeling, but at the same time destroys the emulsification system, so the powder is prone to agglomeration, causing the color to darken and lose gloss.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is how to provide a BB cream which has a light makeup feel, good blemish-covering effect, and long-lasting, fit and glossiness.

[0006] The first object of the present invention is to provide a BB cream, which comprises the following components calculated by mass percentage:

[0007] Elastic colorant 6wt%~20wt%, hydrophobic porous silica 2wt%~5wt%, emulsifier 2wt%~7wt%, oil 10wt%~20wt%, film former 1wt%~3wt%, thickener 0.2wt%~3wt%, humectant 10wt%~20wt%, pH adjuster 0wt%~0.2wt%, antioxidant 0~1%, fragrance 0.05wt%~0.2wt%, preservative 0.5wt%~2wt%, disodium EDTA 0.05wt%~0.1wt%, balance water.

[0008] As a preferred technical solution of the present invention, the elastic colorant D (50) is 50 to 80 μm; for example: 50 μm, 60 μm, 70 μm, 80 μm, etc., but is not limited to the listed values, and other values ​​not listed within the above numerical range are also applicable.

[0009] As a preferred technical solution of the present invention, the colorant has a particle size of 200 to 800 nm and includes at least one of titanium dioxide, zinc oxide, and iron oxide pigments, and the iron oxide includes iron oxide yellow, iron oxide red, and iron oxide black.

[0010] The preparation method of the elastic colorant is as follows: amino silicone oil, dialdehyde compound and p-aminobenzoic acid are dissolved in a solvent, and then the colorant is added for ultrasonic dispersion to obtain a suspension, and then the suspension is spray-dried, washed and dried normally to obtain the elastic colorant.

[0011] As a preferred technical solution of the present invention, the number average molecular weight of the aminosilicone oil is 1 to 10 kDa, for example: 1 kDa, 2 kDa, 3 kDa, 4 kDa, 5 kDa, 6 kDa, 7 kDa, 8 kDa, 9 kDa, 10 kDa, etc.; the amine value of the aminosilicone oil is 1 to 2 mmol / g, for example: 1 mmol / g, 1.2 mmol / g, 1.4 mmol / g, 1.6 mmol / g, 1.8 mmol / g, 2 mmol / g; but it is not limited to the listed values, and other values ​​not listed within the above numerical range are also applicable.

[0012] As a preferred technical solution of the present invention, the dialdehyde compound is selected from at least one of glutaraldehyde, adipaldehyde, heptanedialdehyde, suberaldehyde, and nonanedialdehyde.

[0013] As a preferred technical solution of the present invention, the solvent is selected from one of toluene, chloroform and N-methylpyrrolidone (NMP).

[0014] As a preferred technical solution of the present invention, the mass ratio of the colorant, amino silicone oil, dialdehyde compound and para-aminobenzoic acid is 1-1.2:1:0.1:0.1-0.2; for example: 1:1:0.1:0.1, 1.1:1:0.1:0.1, 1.2:1:0.1:0.1, 1:1:0.1:0.2, 1.1:1:0.1:0.2, 1.2:1:0.1:0.2, etc.; but it is not limited to the listed values, and other values ​​not listed within the above numerical range are also applicable.

[0015] As a preferred technical solution of the present invention, the solid content of the colorant powder in the suspension is 55wt% to 65wt%; for example: 55wt%, 57wt%, 59wt%, 61wt%, 63wt%, 65wt%, etc.; but it is not limited to the listed values, and other unlisted values ​​within the above numerical range are also applicable.

[0016] Titanium dioxide with a particle size of 0.2-0.3 μm has the best ability to reflect and scatter light, achieving the best covering power; however, studies have shown that particles below 10 μm can enter the hair follicles and accumulate in the hair follicles. If makeup removal and cleaning are not in place, these particles will clog the hair follicles and cause a series of skin problems. The solution of the present invention loads the colorant on the elastomer to form a powder with a particle size greater than 10 μm, which can maintain good light reflection of the colorant and avoid accumulation in the hair follicles.

[0017] Amino silicone oil, dialdehyde compounds and para-aminobenzoic acid are cross-linked during the spray drying process to obtain a polysiloxane elastomer with a three-dimensional cross-linked network. Since polysiloxane has high transparency, the elastic colorant retains the good light reflectivity, glossiness and concealing power of the colorant, and the elastic powder can fill the fine lines and pores of the skin better than the rigid powder, thereby achieving a higher concealing power. Compared with the simple mixing of silicone elastomer and ordinary colorant, the particles after the two are compounded in this scheme greatly improve the smoothness of the skin, thereby improving the glossiness; in addition, after the elastomer is loaded with the colorant, the colorant is targeted to fill the fine lines and pores instead of floating on the surface, and the elastomer wraps the colorant to avoid oxidation agglomeration, so the BB cream obtained has a longer-lasting conformability; further, the modified elastic colorant has enhanced hydrophobicity, making it more compatible with other components and improving the stability of the emulsion.

[0018] The reaction of amino silicone oil, dialdehyde compound and para-aminobenzoic acid is explained. The amino group can undergo Schiff base reaction with the aldehyde group under heating conditions to generate C=N bond, and the carboxylic acid and the amino group can undergo acylation reaction under heating conditions to generate CO-NH bond, thereby forming a multi-crosslinked network. On the one hand, the C=N bond and the CO-NH bond can fix the colorant on the elastomer by coordination with the colorant (metal oxide); on the other hand, the C=N bond and the CO-NH bond are both very strong hydrogen bonding groups, which serve as auxiliary crosslinking points for hydrogen bonding crosslinking, greatly improving the elasticity of the material.

[0019] As a preferred technical solution of the present invention, the particle size of the hydrophobic porous silica is 10-20 μm, and D(50) is 13.2 μm. The hydrophobic porous silica was purchased from Wuhu Xinda New Material Technology Co., Ltd., with a specific surface area of ​​200 m 2 / g, its hydrophobicity and porosity enable it to absorb oil secreted from the skin surface, making the skin feel soft and elastic and keeping it dry.

[0020] The elastic colorant and the hydrophobic porous silica can play a good grading effect. On the one hand, the particle sizes of the two conform to the principle of close packing of spheres, that is, R 小 ≤0.225R 大 (R 小 Refers to the radius of small-sized silica particles, R大 Refers to the radius of the large-particle elastic colorant), so that the small-particle powder can well fill the gaps between the large powders, making the concealer film finer and denser, thereby exerting a higher concealing power; on the other hand, since polysiloxane is hydrophobic, the elastically modified colorant has better compatibility with the hydrophobic porous silica, so that the two powders can be evenly dispersed to avoid repulsion and agglomeration.

[0021] As a preferred technical solution of the present invention, the emulsifier is selected from at least one of: PEG-10 polydimethylsiloxane, PEG-15 polydimethylsiloxane, lauryl PEG-9 polydimethylsiloxyethyl polydimethylsiloxane, and cetyl PEG / PPG-10 / 1 polydimethylsiloxane.

[0022] As a preferred technical solution of the present invention, the oil is selected from: at least one of isododecane, isohexadecane, isononyl isononanoate, dicaprylyl carbonate, propylheptyl octanoate, caprylic / capric triglyceride, dibutyl adipate, cyclopentasiloxane, polydimethylsiloxane, C20-24 olefin, isopropyl myristate, isopropyl palmitate, sodium cetearyl alcohol, behenyl alcohol, propylheptyl octanoate, coconut oil alcohol-caprylic / capric ester, and silicone oil.

[0023] As a preferred technical solution of the present invention, the film-forming agent is selected from at least one of trimethylsiloxysilicate and polyvinylpyrrolidone (PVP).

[0024] As a preferred technical solution of the present invention, the thickener is selected from at least one of carrageenan, cellulose, sodium hyaluronate, carbomer, xanthan gum, and magnesium aluminum silicate.

[0025] As a preferred technical solution of the present invention, the moisturizing agent is selected from at least one of sodium hyaluronate, betaine, trehalose, glycerin, propylene glycol, and butylene glycol.

[0026] As a preferred technical solution of the present invention, the pH regulator is selected from at least one of citric acid and sodium hydroxide.

[0027] As a preferred technical solution of the present invention, the antioxidant is selected from at least one of tocopherol acetate and bisabolol.

[0028] As a preferred technical solution of the present invention, the preservative is selected from at least one of phenoxyethanol, paraben, benzoate, and acetyl paraben.

[0029] The second object of the present invention is to provide a method for preparing the above-mentioned BB cream, comprising the following steps:

[0030] Mix the moisturizer, disodium EDTA and deionized water in a pot, heat and stir until completely dissolved, keep warm for 10 minutes and remove from the pot to obtain the water phase;

[0031] Mix the emulsifier, film former, antioxidant and preservative in a pot, heat and stir until completely dissolved, keep warm for 10 minutes and remove from the pot to obtain the oil phase;

[0032] After mixing the elastic colorant, the hydrophobic porous silica and the grease, grinding them with a three-roll mill until there are no particles, and then setting aside to obtain a powder;

[0033] Add the powder to the oil phase, homogenize and transfer to an emulsifier, heat to 60-80°C and keep warm for 10 minutes, then add the water phase, keep warm and homogenize, then add the thickener, flavor, and pH adjuster, continue stirring until completely dissolved, cool and defoam to obtain BB cream.

[0034] Beneficial effects:

[0035] The present invention first prepares an elastic modified colorant, and uses a polysiloxane elastomer to load the colorant, so that the colorant maintains good light reflectivity, glossiness and concealing properties, while avoiding the colorant from agglomerating and being oxidized to darken the color and lose gloss during use; in addition, the elastic and hydrophobic colorant powder can fill the fine lines and pores of the skin, making the skin smoother and more glossy; furthermore, the hydrophobic polysiloxane segment improves the compatibility of the colorant with the skin and other components, and improves the dispersibility and film-forming property of each component.

[0036] The present invention performs particle size grading on the elastic modified colorant and the hydrophobic porous silica, and the fine-grained hydrophobic porous silica fills the gaps in the elastic modified colorant. In addition, the two have the same hydrophobicity, so a dense concealing layer can be formed on the skin surface, thereby achieving the effect of improving the concealing degree.

[0037] Since the dispersibility of the colorant is less dependent on the emulsifier, and the components are synergistic, the BB cream provided by the present invention has a light makeup feel, good concealing effect, long-lasting fit, and glossiness. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is the SEM of the elasticity-modified colorant prepared in Example 1. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with specific examples, but the examples do not limit the present invention in any form. Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the art.

[0040] Example 1

[0041] Weigh amino silicone oil, glutaraldehyde and p-aminobenzoic acid respectively and dissolve them in NMP. After stirring evenly, add colorant powder and ultrasonically disperse for 30 minutes to obtain a suspension, and then use a peristaltic pump to pump the suspension into a centrifugal spray dryer at a speed of 500mL / h. The diameter of the dryer spray plate is 15cm, the spray plate speed is set to 12000r / min, the feed liquid nozzle temperature is set to 200°C, and the drying protective atmosphere is nitrogen. After the powder in the material collection tank of the spray dryer is cooled to below 60°C, it is taken out, redispersed in NMP, shaken and washed for 1h, and dried at 80°C to constant weight to obtain an elastic colorant.

[0042] The amino silicone oil has a number average molecular weight of 5 kDa and an amine value of 1.58 mmol / g;

[0043] The mass ratio of the colorant powder, amino silicone oil, glutaraldehyde and p-aminobenzoic acid is 1:1:0.1:0.1.

[0044] The solid content of the colorant powder in the suspension is 60%.

[0045] The colorant powder has the following proportion: the mass ratio of titanium dioxide, yellow iron oxide, red iron oxide and black iron oxide is 9:1.2:0.25:0.02, and the particle size of the colorant powder is 200-800 nm.

[0046] The D(50) of the elastic colorant measured by a laser particle size analyzer is 62 μm.

[0047] Example 2

[0048] Weigh amino silicone oil, nonanedialdehyde and p-aminobenzoic acid respectively and dissolve them in NMP. After stirring evenly, add colorant powder and ultrasonically disperse for 30 minutes to obtain a suspension, and then use a peristaltic pump to pump the suspension into a centrifugal spray dryer at a speed of 500mL / h. The diameter of the dryer spray plate is 15cm, the spray plate speed is set to 10000r / min, the feed liquid nozzle temperature is set to 200℃, and the drying protective atmosphere is nitrogen. After the powder in the material collection tank of the spray dryer is cooled to below 60℃, it is taken out, redispersed in NMP, shaken and washed for 1h, and dried at 80℃ to constant weight to obtain an elastic colorant.

[0049] The amino silicone oil has a number average molecular weight of 1 kDa and an amine value of 1.12 mmol / g;

[0050] The mass ratio of the colorant powder, amino silicone oil, nonanedialdehyde and p-aminobenzoic acid is 1:1:0.1:0.15.

[0051] The solid content of the colorant powder in the suspension is 60%.

[0052] The colorant powder has the following proportion: the mass ratio of titanium dioxide, yellow iron oxide, red iron oxide and black iron oxide is 9:1.2:0.25:0.02, and the particle size of the colorant powder is 200-800 nm.

[0053] The D(50) of the elastic colorant measured by a laser particle size analyzer is 78 μm.

[0054] Example 2

[0055] Weigh amino silicone oil, adipaldehyde and p-aminobenzoic acid respectively and dissolve them in NMP. After stirring evenly, add colorant powder and ultrasonically disperse for 30 minutes to obtain a suspension, and then use a peristaltic pump to pump the suspension into a centrifugal spray dryer at a speed of 500mL / h. The diameter of the dryer spray plate is 15cm, the spray plate speed is set to 15000r / min, the feed liquid nozzle temperature is set to 200℃, and the drying protective atmosphere is nitrogen. After the powder in the material collection tank of the spray dryer is cooled to below 60℃, it is taken out, redispersed in NMP, shaken and washed for 1h, and dried at 80℃ to constant weight to obtain an elastic colorant.

[0056] The amino silicone oil has a number average molecular weight of 10 kDa and an amine value of 1.87 mmol / g;

[0057] The mass ratio of the colorant powder, amino silicone oil, glutaraldehyde and p-aminobenzoic acid is 1.2:1:0.1:0.1.

[0058] The solid content of the colorant powder in the suspension is 65%.

[0059] The colorant powder has the following proportion: the mass ratio of titanium dioxide, yellow iron oxide, red iron oxide and black iron oxide is 9:1.2:0.25:0.02, and the particle size of the colorant powder is 200-800 nm.

[0060] The D(50) of the elastic colorant measured by a laser particle size analyzer is 57 μm.

[0061] The following tests were performed on the powder combination and the results are listed in Table 1:

[0062] Test 1: Concealer coverage

[0063] Weigh 3 g of the test powder and mix it with 1.4 g of ethanol and 5.6 g of a 10wt% collodion solution to obtain a slurry, and use a smearing method to form a coating film with a thickness of 100 μm on white and black hiding test paper. Use a spectrophotometer to receive light incident on the obtained test sample at an angle of 45° just above the smear (0°), so as to measure color with a white background and a black background, and calculate the hiding power according to the formula: (L1, a1, b1) are the colorimetric values ​​of the chromaticity system in the black background, and (L2, a2, b2) are the colorimetric values ​​of the chromaticity system in the white background.

[0064]

[0065] Test 2: Smoothness

[0066] The friction coefficient is used to evaluate the smoothness of the powder composition. The smaller the friction coefficient, the higher the dispersion of the material, the reduced roughness and the better the comfort. The KES-SE friction coefficient tester of Japan KATO Company is used, with a fingerprint simulator with a spacing of 0.5mm, a traction force of 0.5N and a simulator speed of 1mm / s.

[0067] Table 1

[0068]

[0069] a The colorant powder ratio is as follows: the mass ratio of titanium dioxide, yellow iron oxide, red iron oxide and black iron oxide is 9:1.2:0.25:0.02, and the particle size of the colorant powder is 200-800 nm.

[0070] b The silicone elastomer was Siwell Rebon brand, D(50) was 48 μm, purchased from Guangzhou Rebon Chemical Co., Ltd.

[0071] It can be seen from the data in the table that powder 1 has the largest hiding power and the smallest friction coefficient, indicating that the elastic colorant of Example 1 and the hydrophobic porous silica in powder 1 have the best grading effect; powder 4 is a simple mixture of various components, and its hiding power is slightly worse than that of powders 1 to 3, and its friction coefficient is larger. This is because the surface of the colorant powder is hydrophilic, while the elastomer and silica are hydrophobic, resulting in incompatibility between the components. When the solvent evaporates, the colorant powder tends to aggregate, resulting in poor dispersion of the components and increased roughness. When used as a BB cream powder phase, it will be difficult to spread and the powder will get stuck.

[0072] BB creams with different formulas were prepared, and the components are shown in Table 2.

[0073] Table 2

[0074]

[0075] Mix the moisturizer, disodium EDTA and deionized water in a pot, heat to 60°C and stir until completely dissolved, keep warm for 10 minutes and remove from the pot to obtain the water phase;

[0076] Mix the emulsifier, film former, antioxidant and preservative in a pot, heat to 80°C and stir until completely dissolved, keep warm for 10 minutes and remove from the pot to obtain the oil phase;

[0077] After mixing the elastic colorant, the hydrophobic porous silica and the grease, grinding them with a three-roll mill until there are no particles, and then setting aside to obtain a powder;

[0078] Add the powder to the oil phase, homogenize and transfer to an emulsifier, heat to 70°C and keep warm for 10 minutes, then add the water phase, keep warm and homogenize, then add the thickener, flavor and pH adjuster, continue stirring until completely dissolved, cool and defoam to obtain BB cream.

[0079] The BB cream prepared in Table 2 was subjected to the following tests:

[0080] Test 3: Color difference

[0081] The color difference value of liquid foundation is tested by MetaVue VS3200 non-contact imaging high-precision colorimeter. It is affected by the volatilization of the emulsification system, sebum, oxidation and other conditions. The color difference value is automatically calculated by the colorimeter software using the DEcmc color difference system. It is generally believed that when DEcmc>0.8, the color difference is observable to the human eye.

[0082] Take 0.5g of sample and apply it on two PMMA plates. One sample is placed in a 30℃ glove box (oxygen content is less than 50ppm) in the dark, and the other sample is placed in a 30℃ glove box in the dark and covered with a sealed cover. After standing for 8 hours, measure and record the color difference of the sample to evaluate the color difference caused by the volatilization of the emulsification system.

[0083] Take 6g of sample and put it into the sample cell of the colorimeter. After letting it stand for 3h, spray 30mg of artificial sebum on the surface quantitatively to make a layer of obvious oil film on the surface. Let it stand for another 0.5h and use a non-contact colorimeter to monitor the change of color difference value to evaluate the color difference caused by sebum.

[0084] Take 0.5g of sample and apply it on a PMMA plate. Expose the plate to an air environment at 30℃ and irradiate it with UV light for 0.5h. Then measure and record the color difference of the sample to evaluate the color difference caused by the volatilization of the emulsification system.

[0085] Table 3

[0086]

[0087]

[0088] It can be seen from the data in the table that the color difference caused by the embodiments under different environments is smaller than that of the comparative examples. Specifically, the lower volatile color difference indicates that after the volatile substances evaporate, the collapse of the emulsification system will not cause the aggregation of the powder material, thanks to the hydrophobic elastomer that wraps the colored powder, so that it can be well dispersed between the film-forming agent and the hydrophobic silica; the lower sebum color difference indicates that the sebum has a lower effect on the light reflectivity of the powder, which further illustrates that the concealer film formed by the powder on the skin surface before spraying sebum is more dense, because the principle that sebum produces color difference is that after spraying, the oil fills the gaps between the powders and forms a smooth oil film on the surface of the foundation. The oil film not only reduces the scattering of light, but also absorbs part of the light, so that the light reaching the foundation and the light diffusely reflected from the surface are relatively reduced; the lower oxidation color difference indicates that after the elastomer wraps the colorant, the anti-ultraviolet oxidation aging performance of the colorant is improved.

[0089] Test 4: System stability

[0090] A stability test was conducted by taking 30 mL of sample and placing it in a transparent sealed sample bottle. The stability was observed after being placed at -15, 25 and 48°C for 30 days. The results are shown in Table 4.

[0091] Table 4

[0092]

[0093]

[0094] BB cream is in the state of suspension, so its temperature stability has an important influence on its transportation, use and storage. The above data show that the embodiments of the present invention have higher high temperature stability than the comparative examples, thanks to the encapsulation of the hydrophobic elastomer, which improves the compatibility stability of the colorant in other components.

[0095] Test 5: Skin irritation

[0096] The test was conducted in accordance with the method of human skin patch test in the "Technical Specification for Safety of Cosmetics" (2015 Edition). 20 volunteers aged 18-60 who met the test requirements were selected as subjects (10 men and 10 women). The sample was added to the patch tester at a dosage of 0.020±0.005g, and the blank control was a patch tester without any substance. The patch tester with the test substance was applied to the flexion side of the subject's forearm with a non-irritating tape, and gently pressed with the palm of the hand to apply it evenly on the skin. Apply once every 24 hours, remove the patch 30 minutes after the indentation disappears, and observe the skin reaction. If it is a suspicious reaction or a positive reaction, the subject will stop the patch test; if it is a negative reaction, continue the patch test as above at the same test site of the subject, and repeat the patch test 6 times in total. Record the results of the test group reaction according to Table 5, and the test results are shown in Table 6.

[0097] Table 5

[0098]

[0099]

[0100] Table 6

[0101]

[0102] It can be seen from the table that the BB cream prepared by the present invention has no allergic and irritating effects on the skin, indicating that the BB cream of the present invention has good mildness.

[0103] Test 6: Sunscreen effect

[0104] The sun protection effect of the product was tested in accordance with the "Technical Specification for Safety of Cosmetics" (2015 Edition) Sunscreen Cosmetics Sun Protection Index Test Method (Human Body Method), and the sun protection index (SPF) and long-wave ultraviolet protection index (PFA value) were tested respectively. The test results are shown in Table 7.

[0105] Table 7

[0106] sample SPF PFA Example 4 42.5 15.1 Example 5 43.8 15.8 Example 6 45.6 16.7 Comparative Example 1 46.5 14.5

[0107] It can be seen from the data in the table that, compared with the comparative example, although the SPF of the embodiment of the present invention is lower, the PFA is higher. The possible reason is that although the silica gel reduces the reflection of ultraviolet light, the coordination effect inside it changes the absorption band of the colorant, thereby enhancing the reflection of long-wave ultraviolet light.

[0108] Test 7: Glossiness

[0109] The skin glossiness was tested using the Glossymeter GL200 skin gloss tester. The subjects' arms were divided into groups for the test. Several areas with similar original glossiness (V0) were selected on the arms, and then different samples were applied to perform glossiness (V1) tests. After standing for 3 hours, artificial oil was sprayed, and the glossiness (V3) was measured again after standing for another 3 minutes. The test results are shown in Table 8.

[0110] Table 8

[0111] sample V1 / V0 V3 / V1 Example 4 3.22 0.82 Example 5 3.11 0.75 Example 6 3.02 0.71 Comparative Example 1 3.01 0.65

[0112] From the data in the table, it can be seen that the BB cream provided by the embodiment of the present invention can effectively improve the glossiness of the skin, indicating that the elastic colorant can retain the good light reflectivity, glossiness and concealing power of the colorant. Compared with the simple mixing of the silicone elastomer and the colorant, the colorant is targeted to fill fine lines and pores after the elastomer is loaded with the colorant, which greatly improves the smoothness of the skin, thereby improving the glossiness. In addition, after spraying grease, V3 / V1 can illustrate the effect of grease on the colorant, and the test results are consistent with test 3.

[0113] In order to verify the effect of component content on the performance of BB cream, a BB cream with the following formula was prepared and a human perception score test was conducted.

[0114] Table 9

[0115]

[0116] Test 8: Human body experience

[0117] The volunteers were aged 20-40 years old, with 10 people in a group. They used BB cream once a day for one month and evaluated the product based on the effect: good (5 points), good (4 points), average (3 points), bad (2 points), and very bad (1 point).

[0118] Table 10

[0119]

[0120] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A BB cream, characterized in that: Calculated by mass percentage, the composition comprises the following components: 6wt% to 20wt% of elastic colorant, 2wt% to 5wt% of hydrophobic porous silica, 2wt% to 7wt% of emulsifier, 10wt% to 20wt% of oil, 1wt% to 3wt% of film former, 0.2wt% to 3wt% of thickener, 10wt% to 20wt% of moisturizer, 0wt% to 0.2wt% of pH adjuster, 0 to 1% of antioxidant, 0.05wt% to 0.2wt% of fragrance, 0.5wt% to 2wt% of preservative, 0.05wt% to 0.1wt% of disodium EDTA, and the balance of water; The elastic colorant D(50) is 50-80 μm; the preparation method is: dissolving amino silicone oil, dialdehyde compound and p-aminobenzoic acid in a solvent, then adding the colorant for ultrasonic dispersion to obtain a suspension, further spray drying, washing, and drying at 80°C to constant weight to obtain the elastic colorant; the number average molecular weight of the amino silicone oil is 1-10 kDa, and the amine value is 1-2 mmol / g; the mass ratio of the colorant, amino silicone oil, dialdehyde compound and p-aminobenzoic acid is 1-1.2:1:0.1:0.1-0.

2.

2. A BB cream according to claim 1, characterized in that: The particle size of the hydrophobic porous silica is 10 to 20 μm.

3. A BB cream according to claim 1, characterized in that: The dialdehyde compound is selected from one of glutaraldehyde, adipaldehyde, heptanedialdehyde, octanedial, and nonanedialdehyde.

4. A BB cream according to claim 1, characterized in that: The solid content of the colorant powder in the suspension is 55 wt % to 65 wt %.

5. The BB cream according to claim 1, characterized in that: The colorant has a particle size of 200 to 800 nm and is selected from at least one of titanium dioxide, zinc oxide, and iron oxide pigments. The iron oxide is selected from yellow iron oxide, red iron oxide, and black iron oxide.

6. The BB cream according to claim 1, characterized in that: The emulsifier is selected from at least one of PEG-10 polydimethylsiloxane, PEG-15 polydimethylsiloxane, lauryl PEG-9 polydimethylsiloxyethyl polydimethylsiloxane, and cetyl PEG / PPG-10 / 1 polydimethylsiloxane.

7. The BB cream according to claim 1, characterized in that: The oil is selected from at least one of isododecane, isohexadecane, isononyl isononanoate, dicaprylyl carbonate, propylheptyl octanoate, caprylic / capric triglyceride, dibutyl adipate, cyclopentasiloxane, polydimethylsiloxane, C20-24 olefin, isopropyl myristate, isopropyl palmitate, behenyl alcohol, propylheptyl octanoate, coconut oil alcohol-caprylic / capric ester, and silicone oil.

8. The BB cream according to claim 1, characterized in that: The film-forming agent is selected from at least one of trimethylsiloxysilicate and polyvinylpyrrolidone (PVP).

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