2014年8月16日星期六

wholesale cosmetic jars Emulsion technology articles

The solid components of cream emulsion component with similar, but solid oil, the former is less than the latter, in fact, the request must have the characteristics of products, from the performance, stability, safety, and viscosity and other factors to be taken into account Select wholesale cosmetic jars the recipe. The main component of the oily component in a hydrocarbon or esters, higher alcohols, fatty acids. Surfactants are fatty acid soaps, nonionic surfactant. The aqueous composition with purified water, lower alcohols, polyhydric alcohols, water-soluble polymer and the like. 
Preparation of the emulsion is generally difficult than solid creams, emulsions should also have as good fluidity and stability during storage in order to avoid delamination. Take the following measures to get a good emulsion stability. 
(1) select a similar density lotion pump bottles  oil and water phase material. 
(2) Select the appropriate emulsifiers, such as the selection has a synergistic effect of two or more emulsifiers alone better than an emulsifier effect. 
(3) continuously adding gum to increase viscosity. 
(4) using a homogenizer. 
(5) addition of polyethylene glycol (600) stearate, polyoxyethylene wool ethers, polyoxyethylene cholesteryl ether, increase the stability of the emulsion. 
To prevent and reduce dropper bottle the phenomenon of thickening and emulsion, stearyl or cetyl alcohol, and derivatives thereof in an amount not large, in addition, increasing the low viscosity state is not white oil, a fatty acid ester of oleyl alcohol isomers or low melting point, can be reducing emulsion thickening phenomenon. 
Water and dissolved by heating the polyethylene glycol, and maintained at 70 ° (water phase) so that the remaining components were mixed and dissolved by heating, and maintained at 70 ° (oil phase). The oil phase was added to the aqueous phase and emulsified, and emulsified in a acrylic bottle homogenizer and finally cooled to 30 ° with stirring. 
Formulation Example 1% (by weight): Stearic acid 2.5 Cetyl alcohol 1.5 Vaseline 5 Liquid paraffin 10 Polyoxyethylene (10) monooleate.                                                                                                                         

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