The application of PVP in cosmetics industry
Polyvinylpyrrolidone (PVP), referred to as polyvidone (povidone), is a polymer compound produced by the polymerization of N-vinyl-2-pyrrolidone. PVP is a former
“artificial plasma” solubilizer with good physiological safety characteristics. PVP has good physiological inertia, does not participate in human metabolism, and has
good biocompatibility, and does not form any obvious stimulation to skin, mucosa, eyes and other parts and organs
PVP and its copolymers are used as film agents and hair styling agents in various hair care products, as emollients and moisturizers in skin creams, as base
materials in eye and facial cosmetics and lipgloss, as emulsifying stabilizers in cream lotions, as pigment dispersants in hair dyes, eyeliner and lipgloss, as stain
removers and gels in toothpastes, etc. Used as a conditioner in hair curlers, shaving products and deodorants. PVP is also used as an antidote in various cosmetics,
which can effectively relieve the stimulation of cosmetics on human skin.
Cosmetics industry application
Due to its excellent surface activity, film forming properties, no irritation to skin and no allergic reaction, PVP has broad prospects for application in the daily chemical industry, especially in cosmetics, skin care products, hair care products and washing products.
The application of PVP in cosmetics:
The research on the application of PVP in cosmetics began in the 1960s, and now it has been widely used in hair care products, skin care products, ornaments and other aspects, among which the most prominent is the application in hair care products. As an excellent surfactant, adding PVP to shampoo can make the foam stable. Because of its physiological compatibility, it will not cause irritation and allergic reactions to the skin, long-term use will not damage the hair, and the hair after washing is smooth and shiny and easy to comb. Hair spray and mousse with PVP have a long lasting shape, a good shine, and because PVP has a certain water absorption, the hair is smooth and smooth
PVP used for hair care products can adjust its water absorption capacity through the selection and proportion of copolymer monomers. PVP suitable for dry, neutral
and oily hair as a conditioner component has unique advantages. The main component of hair is protein, and the molecular structure of PVP is also similar to
protein. Therefore, it can be used as a supplement to the nutritional components of hair. Long-term use of hair shampooing and conditioning products containing
PVP can make hair black and shiny and reduce the phenomenon of split ends. The role of PVP used in other cosmetics is mainly to stabilize the dispersion system
such as lotion and suspension. More importantly, it protects the skin by forming a membrane that isolates the skin from the sun. In addition, PVP in other aspects,
such as pigment stabilizer, deodorant, deodorant, dental, shaving cream and so on.
PVP acrylic copolymer used in bath not only has the role of dispersion stabilizer, detergent, and sterilization and disinfection function, especially as a medicated soap, soap ingredients used in the summer has a good effect, PVP both oil and water wet properties make it in the cleaning of clothing, especially in the cleaning of hotels, restaurants with tablecloth cleaning agent has a special effect. For example, Guangzhou Jinyuan Detergent products factory with BASF production of “table cloth net” for washing tablecloth, not only washing time is short, washed tablecloth white and soft, there is a light fragrance smell, and both sterilization and disinfection effect.
In summary, the function of PVP in daily chemical products is mainly manifested in the following aspects:
Dispersion stability function: common skin care products, creams and other cosmetics are mostly lotions and suspensions, to make it can be placed for a long time without precipitation deterioration, so that it is dispersed into a uniform system and has a certain stability time is very important, PVP in cosmetics an important function is dispersion stability function.
Decontamination and washing function :PVP and its copolymer due to its specific molecular structure, on the one hand has a lipophilic, can remove clothing, hair and skin oil, sweat stains, etc., on the other hand has a good hydrophilicity, so it is easy to wash clothes and skin stains.
Film forming, moisturizing function: This is the most common function of PVP in cosmetics, widely used in hair care products, skin care products and so on.
Sterilization, disinfection function: mainly used in washing products.
