Makeup-fixing powder composition and preparation method thereof

Abstract

The invention relates to the technical field of make-up cosmetics, in particular to a make-up powder composition and a preparation method thereof. The powder composition comprises the following raw materials: polydimethylsiloxane, isododecane, octyl polymethylsiloxane, diisostearyl malate, tocopheryl acetate, vinyl polydimethylsiloxane, modified rice starch and the like, and the raw materials are prepared into a make-up cosmetic, so that a brightening effect can be achieved; the long-acting anti-darkness effect can be achieved, the makeup keeping performance is good, and the influence of sebum on the makeup is small.

Description

Technical Field

[0001] The invention relates to the technical field of makeup setting cosmetics, and in particular to a makeup setting powder composition and a preparation method thereof. Background Art

[0002] Setting powder is a kind of cosmetics commonly used by people. Nowadays, setting powder generally contains fine talcum powder, which can absorb excess oil on the face and reduce the oily shine on the face, making the makeup more durable, smooth and delicate. However, the setting powder currently used is not very satisfactory in terms of maintaining the durability of the makeup and the uniformity of application. Summary of the invention

[0003] In view of this, the present invention provides a makeup-setting powder composition and a preparation method to improve makeup-setting, anti-dullness and makeup-lasting effects.

[0004] One of the purposes of the present invention is to provide a makeup setting powder composition, comprising: 8.00-12.00 wt% of polydimethylsiloxane, 4.00-6.00 wt% of isododecane, 0.85-1.15 wt% of octyl polymethylsiloxane, 1.25-1.75 wt% of diisostearyl malate, 0.40-0.6 wt% of tocopheryl acetate, 0.85-1.15 wt% of vinyl polydimethylsiloxane, 2.00- 5.00wt% modified rice starch, 2.50~4.00wt% lauryl PEG-10 tri(trimethylsiloxy)silylethyl polydimethylsiloxane, 0.40~0.60wt% sorbitan isostearate, 4.00~5.00wt% disteardimonium hectorite, 2.50~3.50wt% cyclopentasiloxane, 5.50~6.50wt% propylene glycol, 4.00~6.00wt% 1,3-butylene glycol, 0.40~0.60wt% ethylhexylglycerin, 0.60~0.80wt% 1,2-hexanediol and water.

[0005] Specifically, the modified rice starch is a modified product obtained by modifying rice starch with lactic acid and lactic anhydride, and the degree of substitution of the modified rice starch is 1.67-2.12%.

[0006] Specifically, the modification step of the modified rice starch includes: mixing rice starch and lactic acid in a reaction container, adding lactic anhydride and concentrated sulfuric acid dropwise, controlling the reaction temperature to 85° C. with an oil bath, reacting for 145 minutes, filtering the product after the reaction at room temperature, washing with distilled water, drying, crushing, sieving, and storing for later use.

[0007] Specifically, the mass volume ratio of the rice starch to lactic acid is 7-10 g:25 mL.

[0008] Specifically, the mass volume ratio of the rice starch to the lactic anhydride is 7-10 g:25 mL.

[0009] Specifically, the mass volume ratio of the rice starch to concentrated sulfuric acid is 7-10 g:5 mL.

[0010] Specifically, the powder composition also includes 8.00wt% titanium dioxide, 0.75wt% iron yellow, 0.5wt% iron red, and 0.25wt% iron black.

[0011] A second object of the present invention is to provide a method for preparing a makeup setting powder composition, comprising: The color paste components are mixed with 8.00-12.00wt% polydimethylsiloxane, 4.00-6.00wt% isododecane, 0.85-1.15wt% octyl polymethylsiloxane, 1.25-1.75wt% diisostearyl malate, 0.40-0.6wt% tocopheryl acetate, and 0.85-1.15wt% vinyl polydimethylsiloxane in a beaker and ground into a uniform color paste; Then, 2.00-5.00wt% modified rice starch, 3.50wt% lauryl PEG-10 tris(trimethylsiloxy)silylethyl polydimethylsiloxane, 0.50wt% sorbitan isostearate, 4.50wt% disteardimethylammonium hectorite, and 3.00wt% cyclopentasiloxane were added, and homogenized at 5 000 r / min for 5 min to form a uniform mixture; Then, 6.00 wt % of propylene glycol, 5.00 wt % of 1,3-butylene glycol, 0.50 wt % of ethylhexylglycerin, 0.70 wt % of 1,2-hexanediol and the remainder of water were added and emulsified to obtain a setting powder composition.

[0012] The third object of the present invention also provides the use of modified rice starch in preparing a makeup-fixing cosmetic raw material, wherein the modified rice starch is a modified product obtained by modifying rice starch with lactic acid and lactic anhydride, and the degree of substitution of the modified rice starch is 1.67-2.12%.

[0013] Beneficial effects of the present invention: The present invention obtains modified rice starch with a substitution degree of 1.67-2.12% by modifying rice starch. The modified rice starch is applied to the raw material of makeup setting powder, which can achieve a brightening effect, can resist dullness for a long time, has good makeup holding performance and is less affected by sebum. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 These are infrared images of rice starch (A), Example 1 (B), Example 2 (C), and Example 3 (D).

[0015] Figure 2 The ΔE bar graphs provided for Examples 1-3 and Comparative Examples 1-2.

[0016] Figure 3 The adhesion rate bar graphs provided for Examples 1-3 and Comparative Examples 1-2.

[0017] Figure 4 The UV protection rate bar graph provided for Examples 1 to 3 and Comparative Examples 1 to 4. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The reagents not described separately in detail in the present invention are all conventional reagents and can be obtained from commercial channels; the methods not described in detail are all conventional experimental methods and can be obtained from the prior art.

[0019] Example 1: Preparation of modified rice starch 1. Modification of rice starch Example 1: 10 g of rice starch and 25 mL of lactic acid were mixed in a reaction vessel, and then 25 mL of lactic anhydride and 5 mL of concentrated sulfuric acid (18.4 mol / L) were added dropwise. The reaction temperature was controlled to 85° C. with an oil bath and the reaction was carried out for 145 min. The product after the reaction was filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

[0020] Example 2: 8 g of rice starch and 25 mL of lactic acid were mixed in a reaction vessel, and 25 mL of lactic anhydride and 5 mL of concentrated sulfuric acid were added dropwise. The reaction temperature was controlled to 85° C. with an oil bath and the reaction was carried out for 145 min. The product after the reaction was filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

[0021] Example 3: After 7 g of rice starch and 25 mL of lactic acid were mixed in a reaction vessel, 25 mL of lactic anhydride and 5 mL of concentrated sulfuric acid were added dropwise, the reaction temperature was controlled to 85° C. with an oil bath, and the reaction was carried out for 145 min. The product after the reaction was filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

[0022] 2. Detection of degree of substitution Weigh 2.0g of modified rice starch sample and mix it with 40mL acetone, then add 3 drops of 1% phenolphthalein indicator, mix well, add 0.05mol / L sodium hydroxide solution until it turns slightly red, then add 10mL 0.5mol / L sodium hydroxide standard solution, and shake on a magnetic stirrer for 60min. Rinse the stopper and bottle wall of the conical flask with distilled water, and then titrate the saponified solution containing excess alkali with 0.5mol / L HCl standard solution until the red color disappears and does not change for 30s, which is the end point. The volume is recorded as V2 (mL). For a blank test, accurately weigh 2.0g of rice starch sample, and the determination steps are the same as above. Record the volume of 0.5mol / L HCl standard solution consumed as V2 (mL). Perform three parallel tests and calculate the degree of substitution of the product according to the following formula = 162×A / (43×100-(43-1)×A).

[0023] Where A=100%×(V1-V2)×10 -3 ×M×43 / W; A is the acetyl content, M is the molar concentration of HCL, mol / L; 43 is the molar mass of the ester group, g / mol; 162 is the molar mass of the glucose unit, g / mol, and W is the mass of the modified rice starch.

[0024] As a result, the acetyl substitution degrees of Examples 1 to 3 are 1.67%, 1.89% and 2.12%, respectively.

[0025] 3. Infrared characterization of modified rice starch In the infrared spectrum of rice starch, 3400 cm -1 The stretching vibration peak of -OH is 2920 cm -1 Asymmetric stretching vibration peak belonging to -CH2-, 3400cm -1 The hydroxyl shear absorption peak of starch absorbing water molecules is 1160cm -1 The asymmetric stretching vibration absorption peak of COC, 1000 cm -1 Symmetrical vibration absorption peak of CO(H), 930cm -1 、860cm -1 、760cm -1 、580cm -1 They all belong to the stretching vibration absorption peaks of the entire sugar ring.

[0026] In the infrared spectrum of modified rice starch, 1730 cm -1 The stretching vibration absorption peak of C=O is 1370cm -1 -CH 3 The denaturation vibration absorption peak and 1250cm -1The stretching vibration absorption peak of the CO single bond is due to the presence of -COCH 3 The formation of groups proves the occurrence of esterification reaction.

[0027] Example 4: Application of modified rice starch The present invention applies modified rice starch to the raw material of makeup setting powder, which can achieve a brightening effect, has a long-lasting anti-dullness and good makeup-holding performance and is less affected by sebum.

[0028] The formula of setting powder is as follows: Phase A is 8.00wt% titanium dioxide, 0.75wt% iron yellow, 0.5wt% iron red, and 0.25wt% iron black. Phase B: 10.00wt% polydimethylsiloxane, 5.00wt% isododecane, 1.00wt% octyl polymethylsiloxane, 1.50wt% diisostearyl malate, 0.50wt% tocopheryl acetate, 1.00wt% vinyl polydimethylsiloxane, 3.50wt% modified rice starch Phase C is: 3.50wt% lauryl PEG-10 tri(trimethylsiloxy)silylethyl polydimethylsiloxane, 0.50wt% sorbitan isostearate, 4.50wt% disteardimonium hectorite, 3.00wt% cyclopentasiloxane Phase D comprises: 6.00 wt% propylene glycol, 5.00 wt% 1,3-butylene glycol, 0.50 wt% ethylhexylglycerol, 0.70 wt% 1,2-hexanediol and the balance water.

[0029] Setting powder composition: Weigh the components of phase A and phase B except the modified rice starch in a beaker, grind into a uniform color paste, add the modified rice starch and phase C, and homogenize at 5,000 r / min for 5 min to form a uniform color paste. Then, add the uniformly mixed phase D for emulsification to obtain a makeup setting powder composition. Based on the above formula, the modified rice starch provided in Examples 1 to 3 was used as a raw material to prepare a powder composition with the same formula amount. In addition, a powder composition with the same formula amount was prepared using rice starch as a control (Comparative Example 1), and a powder composition with the same formula amount of various other components without adding rice starch or modified rice starch (Comparative Example 2).

[0030] Test Example 1: Darkening Effect Test According to the commonly used L×a×b× color representation method, the L value from negative to positive represents the color from black to white; the a value is the change from red to green, with positive values ​​in the red direction and negative values ​​in the green direction; the b value is the change from yellow to blue, with positive values ​​in the yellow direction and negative values ​​in the blue direction. The dullness of the makeup foundation composition can be obtained by comparing the L×difference (△L), and the larger the △L, the more serious the dullness.

[0031] A 90 μm thick film of the makeup foundation composition was drawn on a glass plate using a four-sided preparation device, the prepared makeup foundation composition film was placed in a 60° C. oven for 60 min, and the film was measured using a spectrophotometer.

[0032] The makeup foundation compositions provided in each of the above-mentioned Examples 1 to 3 and Comparative Examples 1 to 2 are prone to dulling when left on the face for a long time, and consumers generally prefer makeup foundation products that can resist dulling for a long time. The samples were placed at 60°C to accelerate the dulling of the makeup foundation compositions, and the anti-dulling effects of the makeup foundation compositions containing different powders were evaluated, and the results are shown in Table 1.

[0033] Table 1

[0034] As shown in Table 1, the L* values ​​of the makeup fixing compositions provided in Examples 1 to 3 after being placed at high temperature for 60 minutes all decreased, and the values ​​were all lower than those of Comparative Examples 1 to 2, and the L* values ​​of Example 2 all decreased the lowest. This shows that the makeup fixing compositions provided in Examples 1 to 3 have better anti-dullness effects than Comparative Examples 1 to 2, and the makeup fixing composition provided in Example 2 has the best anti-dullness effect.

[0035] Test Example 2: Makeup lasting effect test A 90 μm thick film of the makeup foundation composition was drawn on a glass plate using a four-sided preparation device, and the prepared makeup foundation composition film was placed in a 60 ℃ oven for 60 min, and the film was measured using a spectrophotometer. The makeup lasting ability is an important indicator of the makeup foundation composition, which is characterized by the color difference value (△E), △E=△L2+△a2+△b2. The larger the △E, the more obvious the color difference, and the worse the makeup lasting ability.

[0036] like Figure 2 As shown, after the liquid foundation is placed at high temperature for 60 minutes, the ΔE values ​​of the makeup-fixing compositions provided in Examples 1 to 3 after being placed at high temperature for 60 minutes are all smaller than those of Comparative Examples 1 to 2, and the ΔE value of Example 2 is the lowest. This shows that the makeup-fixing compositions provided in Examples 1 to 3 have a better lasting effect than Comparative Examples 1 to 2, and the makeup-fixing composition provided in Example 2 has the best lasting effect.

[0037] Test Example 3: Skin Adhesion Powder skin adhesion refers to the ability of powder to attract skin. There are many factors that affect it, including the moisture content of the skin of different groups of people, the strength of applying powder, and powder formulation technology.

[0038] Weigh 0.1 g of the makeup setting composition samples provided in Examples 1 to 3 and Comparative Examples 1 to 2, respectively, and spread them evenly on the back of the hand, ensuring that the area spread each time is the same, then slowly rotate the back of the hand until it is perpendicular to the horizontal plane and stay for 3 s to allow the talcum powder to fall naturally, weigh the mass of the talcum powder that falls, and calculate the adhesion rate A=(m1-m0) / m1×100%; wherein, A: adhesion rate (%); m0: mass of starch that falls (g); m1: mass of starch weighed (g).

[0039] like Figure 3 As shown, the average adhesion rate of the makeup fixing compositions provided in Examples 1 to 3 is maintained between 28.39% and 29.25%, while the average adhesion rate of Comparative Example 1 reaches 32.15%, and the average adhesion rate of Comparative Example 2 is 24.36%. This shows that the makeup fixing compositions provided in Examples 1 to 3 have good skin adhesion, which can prolong the residence time on the skin and improve its utilization rate, but the excessive adhesion of Comparative Example 1 makes it difficult to disperse the powder, and the too low adhesion of Comparative Example 2 shortens the residence time, does not have a good skin feel, causes waste, and easily generates dust.

[0040] Test Example 4: UV protection rate Comparative Example 3: After 20 g of rice starch and 25 mL of lactic acid were mixed in a reaction container, 25 mL of lactic anhydride and 5 mL of concentrated sulfuric acid were added dropwise, the reaction temperature was controlled to 85 ° C with an oil bath, and the reaction was carried out for 145 min. The product after the reaction was filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

[0041] Comparative Example 4: After 2 g of rice starch and 25 mL of lactic acid were mixed in a reaction vessel, 25 mL of lactic anhydride and 5 mL of concentrated sulfuric acid were added dropwise, the reaction temperature was controlled to 85 ° C with an oil bath, and the reaction was carried out for 145 min. The product after the reaction was filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

[0042] The acetyl substitution degrees in the modified rice starch obtained in Comparative Examples 3 and 4 were measured by the same method as above, and the results were 0.35% and 6.8% respectively.

[0043] The same formula as in the above embodiment was used to prepare a makeup setting composition using the modified rice starch provided in Examples 1 to 3 and Comparative Examples 1 to 4 as a raw material. The makeup setting composition samples provided in Examples 1 to 3 and Comparative Examples 1 to 4 were heated to 2 mg / cm 2The amount of was dropped onto the measuring plate (S plate) (5×5 cm V-groove, and applied with a finger for 60 seconds. After drying for 15 minutes, the absorbance of the formed coating was measured with a spectrophotometer. The uncoated plate was used as a control, and the absorbance (Abs) was calculated using the following formula, and the measured values ​​at 290~320nm (UVB region) and 320~400nm (UVA region) were accumulated. The total of the accumulated values ​​in the UVB region and the UVA region was taken as the accumulated absorbance of the sample as -log(T / To); T is the transmittance of the sample, and To is the transmittance of the uncoated plate.

[0044] The percentage of the difference between the cumulative absorbance value of each group and the cumulative absorbance value of the control group to further improve the UV protection rate was calculated.

[0045] like Figure 4 As shown, the average UV protection rate of the makeup setting compositions provided in Examples 1 to 3 is maintained between 59.36% and 63.56%, while the average UV protection rate of Comparative Example 1 is 13.63%, the average UV protection rate of Comparative Example 2 is 6.6%, the average UV protection rate of Comparative Example 3 is 15.26%, and the average UV protection rate of Comparative Example 4 is 22.09%, which are significantly lower than Examples 1 to 3. This shows that the makeup setting compositions provided in Examples 1 to 3 have obvious UV protection capabilities, while Comparative Examples 1 to 4 do not have obvious protection capabilities, and it is shown that the present invention significantly improves its UV protection capabilities by adding modified rice starch to the makeup setting composition.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A makeup setting powder composition, characterized in that: include: 8.00~12.00wt% polydimethylsiloxane, 4.00~6.00wt% isododecane, 0.85~1.15wt% octyl polymethylsiloxane, 1.25~1.75wt% diisostearyl malate, 0.40~0.6wt% tocopherol acetate, 0.85~1.15wt% vinyl polydimethylsiloxane, 2.00~5.00wt% modified rice starch The invention discloses a method for preparing the modified rice starch of claim 1, wherein the modified rice starch comprises: preparing rice starch with lactic acid and lactic anhydride as the raw material, the modified rice starch comprises: a first starch containing 2.50-4.00wt% lauryl PEG-10 tris(trimethylsiloxy)silylethyl polydimethylsiloxane, a second starch containing 0.40-0.60wt% sorbitan isostearate, a second starch containing 4.00-5.00wt% disteardimethylammonium hectorite, a second starch containing 2.50-3.50wt% cyclopentasiloxane, a third starch containing 5.50-6.50wt% propylene glycol, a third starch containing 4.00-6.00wt% 1,3-butylene glycol, a third starch containing 0.40-0.60wt% ethylhexylglycerol, a third starch containing 0.60-0.80wt% 1,2-hexanediol and water; the modified rice starch is a modified product obtained by modifying rice starch with lactic acid and lactic anhydride, and the acetyl substitution degree of the modified rice starch is 1.67-2.12%.

2. The powder composition according to claim 1, characterized in that: The modification step of the modified rice starch comprises: After rice starch and lactic acid are mixed in a reaction vessel, lactic anhydride and concentrated sulfuric acid are added dropwise successively, the reaction temperature is controlled at 85°C with an oil bath, and the reaction is carried out for 145 minutes. The product after the reaction is filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

3. The powder composition according to claim 2, characterized in that: The mass volume ratio of the rice starch to the lactic acid is 7-10 g:25 mL.

4. The powder composition according to claim 2, characterized in that: The mass volume ratio of the rice starch to the lactic anhydride is 7-10 g:25 mL.

5. The powder composition according to claim 2, characterized in that: The mass volume ratio of the rice starch to concentrated sulfuric acid is 7-10 g:5 mL.

6. The powder composition according to claim 1, characterized in that: It also includes 8.00wt% titanium dioxide, 0.75wt% iron yellow, 0.5wt% iron red, and 0.25wt% iron black.

7. A method for preparing a makeup setting powder composition, characterized in that: include: The color paste components are mixed with 8.00-12.00wt% polydimethylsiloxane, 4.00-6.00wt% isododecane, 0.85-1.15wt% octyl polymethylsiloxane, 1.25-1.75wt% diisostearyl malate, 0.40-0.6wt% tocopheryl acetate, and 0.85-1.15wt% vinyl polydimethylsiloxane in a beaker and ground into a uniform color paste; Then, 2.00-5.00wt% modified rice starch, 3.50wt% lauryl PEG-10 tris(trimethylsiloxy)silylethyl polydimethylsiloxane, 0.50wt% sorbitan isostearate, 4.50wt% disteardimethylammonium hectorite, and 3.00wt% cyclopentasiloxane were added, and homogenized at 5 000 r / min for 5 min to form a uniform mixture; Then, 6.00 wt % of propylene glycol, 5.00 wt % of 1,3-butylene glycol, 0.50 wt % of ethylhexylglycerin, 0.70 wt % of 1,2-hexanediol and the remainder of water were added and emulsified to obtain a setting powder composition.

8. Use of modified rice starch in preparing a raw material for fixed makeup cosmetics, wherein the modified rice starch is a modified product obtained by modifying rice starch with lactic acid and lactic anhydride, and the acetyl substitution degree of the modified rice starch is 1.67-2.12%.

9. The use according to claim 8, wherein the modification step of the modified rice starch comprises: After rice starch and lactic acid are mixed in a reaction vessel, lactic anhydride and concentrated sulfuric acid are added dropwise successively, the reaction temperature is controlled at 85°C with an oil bath, and the reaction is carried out for 145 minutes. The product after the reaction is filtered at room temperature, washed with distilled water, dried, crushed, sieved, and stored for later use.

Images