Hair SpraysA hairspray which allows your hair to move and return to place, giving great hold despite disruptions throughout the day. Hair sprays are generally used on dry hair, to hold and fix a style. A hair spray is a solution of a polymer (plastic) in a liquid. The newer sprays are lightweight and flexible, allowing the user to get hold without stiffness. They can be found in a variety of holds from light to maximum and are usually used to maintain and control styles. Almost all hair sprays are under government guidelines so as not to harm the environment. The hair spray solution in the canister reaches the hair in the form of a fog of tiny droplets. When these strike the hair they join up, coating the hair thinly with the polymer. The spray dries very quickly, since the liquid evaporates almost at the instant it touches the hair. As it dries the polymer forms light welds or bonds between the strands of hair. It is these bonds that hold the newly created style in place. Different types of hair spray are sold, for use on different types of hair. They differ in the formulation of the holding polymer used, and also in the way the spray is produced. Polymer sprayed on the hair in the form of large droplets gives more hold; it takes longer to dry, however, which leaves the hair feeling sticky for a while. It may also seem stiffer and rougher when it is dry. Smaller droplets give better feel, but a less firm hold. It is important to choose the right balance between hold and feel. The more heavily the spray is applied, the stronger is the hold. But there is a definite trade-off: the build-up of polymer on the hair both looks and feels unpleasant. Some sprays feel sticky after even a fairly light application. A good spray will give both good 'hold' and good 'feel' without heavy or repeated application, and will be completely removed by shampooing. Most hair sprays bond the hair strands into long, linear bundles - that is, they 'seam weld' the hair. But this structure is broken down as soon as a comb or fingers are run through it, or even in damp or windy conditions. A new innovation produces 'spot welds' rather than seam welds see . This reduces the volume of product on the hair. It also gives a softer hold and less damage to the cuticles when the hair is groomed. Pages: 1 2 3 4 5 6 7 8 9 10 Next >>
|
