Colloid materials used for cosmetics

Colloid material is water-soluble polymer, it can expand into colloid in water, used in cosmetics can produce a variety of functions, can make the solid glue powder raw material and forming, as the cement, the emulsion or suspension agent milk slip effect, as emulsifier, moreover also has the thickening or gelation. Of water-soluble polymers used in cosmetics is mainly divided into two categories: natural and synthetic. Water soluble polymer compounds are: natural starch, vegetable gum, animal gelatin, etc. , but the quality is not stable, easily affected by climate, geographical environment, production is limited, and vulnerable to the effect of bacteria, mould and metamorphism. Synthesis of water-soluble polymer compounds are: polyvinyl alcohol, polyvinylpyrrolidone, nature is stable, low stimulus to the skin, the price is low, so instead of natural water soluble polymer compounds to become the main source of colloid materials. It is divided into half a synthesis of water-soluble polymers and synthetic. Semi-synthetic water-soluble polymer compounds are often used: methyl cellulose, ethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, and the melon ear glue and its derivatives. Synthesis of water-soluble polymer compounds are commonly used: poly (vinyl alcohol), polyvinylpyrrolidone, acrylic polymer, etc. Such as adhesive, thickener, film former, emulsifying stabilizers used in cosmetics.