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Chemical T
Chemical texture services
| Question | Answer |
|---|---|
| Porous, Damaged, or Chemically treated hair requires a perm solution that is? | Less alkaline |
| Changing the natureal wave pattern of the hair is made possible by the breaking of the? | Side bonds |
| Of the three types of side bonds which is the strongest? | Dislufide Bonds |
| An example of a physical change is a? | Wet Set |
| Hydrogen bonds are very weak but they account for about _____ of the hairs total strength | 1/3 |
| When treated with chemical texture services, coarse hair is usally | harder to penetrate |
| The single most important factor in determining the ability of hair to hold a curl is its? | elasticity |
| Wet hair with normal elasticity can stretch up to ____ percent of its original length and then return to that length without breaking. | 50 |
| The major difference between a wet set and a perm is the ________________ | type of side bonds broken |
| Rods with a smaller circumference in the chenter than at the ends are called? | Concave rods |
| The end paper technique that provides the most control over the ends and keeps them evenly distributed is the? | Double flat wrap |
| In permanent waving solutions, thiol compunds act as? | reducing agents |
| Ammonium thioglycolate is produced by adding ___________ to thioglycolic acid. | Ammonia |
| Alkaline waves are also called | cold waves |
| In permanent waving, most of the processing takes place as soon as the solution penetrates the hair, within the first ___ to ___ min | 5-10 |
| Neutralizer performs two functions, deactivating any remaining waving solution in the hair and _________________ | rebuilding broken disulfide bonds |
| The chemical reation involved in neutralizing is? | oxidation |
| An optional step after blotting the hair and before applying neutralizer is to? | Apply a pre-neutralizing conditioner |
| All relaxers and permanents change the shape of the hair by: | breaking disulfide bonds |
| Thio relaxers have a pH ___________ | above 10 |
| The disulfide bonds that are broken by hydroxide relaxers | can never be re-formed |
| Sodium hydroxide relaxers are commonly called | lye relaxers |
| Mild strength relaxers are recommended for fine, damaged, or | color-treated hair |
| The application for a virgin relaxer begins | 1/4 to 1/2" away from the scalp |
Created by:
Cosmo Nelly