Liquid foundation with anti-blue light and color change effects and preparation method of liquid foundation
A liquid foundation and anti-blue light technology, which is applied to medical preparations containing active ingredients, skin care preparations, pharmaceutical formulas, etc., to achieve the effects of soft touch, free radical scavenging, and anti-blue light effects
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Embodiment 1-4
[0035]Table 1 lists the mass percentages of the raw materials used in Examples 1-4 and Comparative Example 1 of the liquid foundation of the present invention.
Embodiment 1
[0036] The preparation method of embodiment 1
[0037] (1) Preparation of liquid foundation base material: Mix and heat the oily raw material to 60°C; heat and mix the water-based raw material to 50°C, add the oily raw material mixture to the water-based raw material mixture, and homogenize; cool the obtained mixture to 30°C, Add the anti-blue light composition into the cooled mixture, and stir evenly;
[0038] (2) Preparation of powder particles: dissolving polylactic acid in dichloromethane, dispersing the colored powder in the dichloromethane solution of polylactic acid, then adding it to an aqueous solution of polyvinyl alcohol, stirring to form an emulsion, The dichloromethane is removed by distillation, and the powder particles are obtained by filtration; the quality of polylactic acid is 1 times that of colored powder, the quality of dichloromethane is 10 times that of polylactic acid, the amount of polyvinyl alcohol is 0.1 times that of polylactic acid, polyethylene T...
Embodiment 2
[0040] The preparation method of embodiment 2
[0041] (1) Preparation of liquid foundation base material: Mix and heat the oily raw materials to 70°C; heat and mix the water-based raw materials to 60°C, add the oily raw material mixture to the aqueous raw material mixture, and homogenize; cool the obtained mixture to 40°C, Add the anti-blue light composition into the cooled mixture, and stir evenly;
[0042] (2) Preparation of powder particles: dissolving polylactic acid in dichloromethane, dispersing the colored powder in the dichloromethane solution of polylactic acid, then adding it to an aqueous solution of polyvinyl alcohol, stirring to form an emulsion, The dichloromethane is removed by distillation, and the powder particles are obtained by filtration; the quality of polylactic acid is 1.2 times that of colored powder, the quality of dichloromethane is 20 times that of polylactic acid, the quality of polyvinyl alcohol is 0.5 times that of polylactic acid, and the qualit...
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