A sunscreen liquid foundation
A technology of liquid foundation and functional additives, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve problems such as hidden safety hazards, unavoidable direct contact with chemical sunscreen agents, etc., to avoid safety problems, overcome quality risks, and broaden applications. range effect
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Embodiment 1~3
[0027] The preparation method of novel high-efficiency sunscreen liquid foundation of the present invention, its steps are as follows:
[0028] 1) Moisten magnesium aluminum silicate, xanthan gum, and tremella extract in component B with glycerin, then add it to the water phase pot, start stirring, add other components of component B in sequence, and heat up to 80°C. Incubate for 10 minutes until completely dissolved.
[0029] 2) The stirring speed of the emulsification pot is kept at 30 rpm, and the B component is sucked in by vacuum, and homogenized at a low speed for 5 minutes.
[0030] 3) Add the raw materials of component A into the oil phase pot one by one, then heat to 80°C, then suck component A into the emulsification pot through vacuum, start stirring, homogenize at low speed for 10 minutes, and cool down to 45°C.
[0031] 4) Add component C into the emulsification pot and stir evenly.
[0032] 5) Discharge when stirring down to 38°C.
[0033] 6), the inspection i...
Embodiment 3
[0055] Test sample: embodiment 3, comparative example 1
[0056] Evaluation method: Use a glass rod to take 0.02 grams of sample and dip it on the center of the glass slide, then cover it with a cover glass, and press lightly to disperse it by about 1 cm 2 , put it under a microscope for observation, choose a 100x lens, adjust the objective lens until it is displayed most clearly, then take pictures for analysis and observation, the results are as follows Figure 1A and Figure 1B shown. Embodiment 3 (as Figure 1B Shown) the particle size of the emulsified body is less, the particle size distribution is relatively uniform), while the comparative example 1 (such as Figure 1A As shown, the particle size of the emulsion without adding film-forming agent triaconyl PVP) is very large, and the dispersion is not very uniform.
[0057] Experimental results: It can be seen from the microstructure of the product that the emulsified structure of Example 3 containing 2% Triaconyl PVP ...
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