【Detail】
PVP has a promising prospect in daily chemical industry, especially in the area of cosmetics, skincare, haircare products and cleaning products, thanks to the excellent PVP’s surface activity, property of film forming and characters of non-stimulation and non-allergic reaction.
Application of PVP in cosmetics
Study on the application of PVP in cosmetics began in 1960s. Now PVP has been widely used in the field of shampoo and conditioner products, skin care products and accessories, especially in the application of shampoo and conditioner products. as an excellent surface activity, PVP added in shampoo can make the foam stability. Due to its physiological compatibility, PVP has no stimulus and allergic reactions to skin, as well as no damage to hair after used for a long time. Instead, it will make hair which has washed soft, glossy and easy to comb.Hair spray and mousse with PVP can last hair style for longer time with luster. Besides, because PVP has a certain ability of water absorption, it will make hair lustrous, smooth and does not appear to dry.
PVP can adjust the ability of water absorption to different types of hair,such as dry hair, neutral hair and oily hair through the choices of various kinds of comonomers and accommodation of ratio. PVP has an unique advantage when worked as haircare.The main component of hair is protein, and molecular structure of PVP is similar to protein, so it can be used as supplementary nutritional components of hair. If shampoo and conditioner products with PVP are utilized for a long time, hair will be dark, shiny and reduce the phenomena of bifurcation . An example formulation of shampoo and conditioner products with PVP showed below:
Hair spray:
|
Composition |
Ratio(mass percentage%) |
|
PVP |
4.0 |
PVP has a steady effect on disperse system, such as emulsions and suspensions in the area of other cosmetics. In addition, PVP has the ability to keep moist, form film in skincare product. For example, sunscreen containing PVP can keep moist, more importantly, it plays a role in protecting the skin when PVP isolates skin from the sun through the film formation. The last but not the least, PVP plays a special role in other area of cosmetic, such as pigment stabilizer, deodorant, toothpaste, shaving cream, and fragrant agent. Ingredients and functions of PVP in the application of cosmetics are shown in the following table:
Application of Block Copolymer and PVPin cosmetics
|
Application |
Application of PVP type |
Quality ingredient(% ) |
Main functions |
|
Hair spray |
PVP/PVP hyamine |
1～8 |
Stereotype |
|
Mousse |
PVP ,PVP/VA polymer |
0.5～5 |
Stereotype, moisturizing, film
|
|
Hair conditioner |
PVP, PVP hyamine, |
0.5～3 |
Hair care nutritional supplement
|
|
Shampoo |
PVP ， PVP hyamine， |
0.1～2.0 |
Hair, foam stability |
|
Hair dye |
PVP ， PVP hyamine， |
--- |
Dispersants, soft and pigment stability agents
|
|
Perm |
PVP PVPQ |
0.1～2.0 |
Dispersing and stereotypes |
|
Vanishing cream |
PVP polymer hyamine |
0.5～1.0 |
Moist, lubrication |
|
Suncreen |
PVP |
0.1～1.0 |
Humid, lubrication, isolating the sun |
|
Facial mask |
PVP |
0.1～1.0 |
Film forming agent |
|
Umguentum Acid |
PVP/VA |
0.2～2.0 |
Moist, freezing |
|
Shaving cream |
PVP polymer hyamine |
0.1～1.0 |
Foam stabilizer, softener and lubricant |
|
Depilatory |
PVP polymer hyamine |
0.1～1.0 |
Wetting agents, lubricants |
|
Toothpaste |
PVP |
0.1～1.0 |
Clean tartar, prevention |
|
Deodorant |
PVP |
0.1～1.0 |
Perfume fixative and analgesic |
|
Tooth bonding agents |
PVP 、 PVP/VA |
1～4 |
Adhesive |
|
Mascara |
PVP |
0.1～1.0 |
Adhesive |
|
Mail polish |
PVP |
0.1～1.0 |
Adhesive, Anti - crack and film
|
|
Lipstick |
PVP |
0.1～1.0 |
moist |
|
Night cream |
PVPP |
1～5 |
Lubrication,preventing pain |
Application of PVP in detergents
PVP has a good effect on cleaning products, thanks to its excellent surface activity.
Toothpaste containing PVPP can be utilized to absterge and be antifouling with diminish inflammation and analgesic effects. An example formulation of toothpaste with PVPP showed below:
|
Composition |
Ratio ( mass percentage %) |
|
super-fine calcium carbonate |
28 |
Bath preparation containing acrylate copolymer of PVP has an effect of dispersion, stabilization, decontamination, sterilization and antisepsis, especially medicinal soap and soap whose components are acrylate copolymer of PVP in summer. PVP has a special effect on cleaning clothes, especially on cleaning hotels and tableclothe in restaurants, because of its good Hydrophilicity and lipophilicity. For example, Guangzhou Jin Yuan Cleaning Products Factory " tablecloth net " produced by BASF to wash cloth. In addition to wash time which is shorter, tablecloth become white and soft with faint fragrance and the effect of sterilization and antisepsis after washed.
In summary, the functions of PVP in daily chemical products mainly in the following areas :
Firstly, dispersed stability functions: common skincare products, cream and other cosmetics are mainly emulsions and suspensions. It’s important to enable them not to precipitate and deteriorate for a long time. And it’s more significant to make cosmetics have enough time to be stable. Therefore, the main function PVP has in cosmetics is dispersed stability.
Secondly, decontaminating and washing functions: PVP and its copolymers have special molecule stucture. On one hand, it can wash away oil and perspiration in clothes, hair and skin with good lipophilicity. On the other hand, it’s easy to wash away te stains in clothes and skinwith good hydrophilic.
Thirdly, film-forming, moisturizing functions : It is the most common feature of PVP in cosmetics. Hence, PVP are widely used in haircare products, skincare products and so on.
Fourthly, sterilized, disinfected functions : It’s mainly used in cleaning products.
