Natural botanical sunscreen cream and preparation method therefor
A technology of natural plants and sunscreens, applied in the field of daily chemicals, can solve the problems of decreased product storage stability, phase separation of sunscreen products, etc., and achieve the effect of improving storage stability.
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[0035] A preparation method of natural plant-based sunscreen, the specific preparation steps include:
[0036] Preparation of seaweed extract:
[0037] After soaking the seaweed in water for 10-24 hours, cleaning and removing impurities, then freezing and pressing, and drying, the seaweed powder is obtained; after mixing the seaweed powder and water in a mass ratio of 1:10-1:20, the temperature is 35-50 Under the condition of ℃, heat preservation and water extraction, and then filter, collect the filtrate, remove the pigment in the filtrate, and freeze-dry to obtain the seaweed extract;
[0038] Formulation of oil phase components:
[0039] In parts by weight, take 10-15 parts of stearic acid, 10-15 parts of glycerin, 2-5 parts of lanolin, 2-5 parts of stearyl alcohol, 2-5 parts of cetyl alcohol, mix them, heat and stir Melt, and keep it in a molten state to obtain an oil phase;
[0040] The preparation of the water phase components:
[0041] In parts by weight, sequential...
Embodiment 1
[0049] Preparation of seaweed extract:
[0050]Soak seaweed in water for 10 hours, wash and remove impurities, then freeze and press at -30°C and press pressure 5MPa to obtain seaweed powder; mix seaweed powder and water at a mass ratio of 1:10 Finally, at a temperature of 35°C, heat-preserve water for 3 hours, then filter, collect the filtrate, remove the pigment in the filtrate, and freeze-dry to obtain the seaweed extract;
[0051] Preparation of oil phase components:
[0052] In parts by weight, 10 parts of stearic acid, 10 parts of glycerin, 2 parts of lanolin, 2 parts of stearyl alcohol, and 2 parts of cetyl alcohol are successively mixed, heated and stirred to melt, and kept in a molten state with heat preservation. get oily phase;
[0053] Preparation of water phase components:
[0054] In parts by weight, successively take 1 part of triethanolamine, 0.1 part of alkali metal hydroxide, 1 part of carbomer, and 80 parts of water. After mixing, heat and stir to dissolv...
Embodiment 2
[0059] Preparation of seaweed extract:
[0060] Soak seaweed in water for 24 hours, wash and remove impurities, then freeze and press at -45°C and press pressure 10MPa to obtain seaweed powder; mix seaweed powder and water at a mass ratio of 1:20 Finally, at a temperature of 50°C, heat-preserve water for 5 hours, then filter, collect the filtrate, remove the pigment in the filtrate, and freeze-dry to obtain the seaweed extract;
[0061] Preparation of oil phase components:
[0062] In parts by weight, 15 parts of stearic acid, 15 parts of glycerin, 5 parts of lanolin, 5 parts of stearyl alcohol, and 5 parts of cetyl alcohol are successively mixed, heated and stirred to melt, and kept in a molten state with heat preservation. get oily phase;
[0063] Preparation of water phase components:
[0064] In parts by weight, successively take 3 parts of triethanolamine, 0.3 part of alkali metal hydroxide, 3 parts of carbomer, and 100 parts of water. After mixing, heat and stir to di...
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