Ch. 20 Chemical texture services

Front

A _______________ is an example of a physical change that results from breaking and reforming the hydrogen bonds within the hair.

Back

wet set

Front

In the croquignole method of wrapping, the hair is wound from

Back

ends to scalp

Front

Once in the cortex, the waving solution breaks the disulfide bonds through a chemical reaction called

Back

reduction

Front

The most common reducing agents used are: ammonia water, hydrogen peroxide, thioglycolic acids, hydrogen acids

Back

thioglycolic acids

Front

If too many _______________ bonds are broken in the perming process, the hair will be too weak to hold a firm curl.

Back

disulfide

Front

End wraps are absorbent papers used to _______________ of the hair when wrapping and winding hair on the perm tools.

Back

control ends

Front

In neutralization, the bonds in the hair are re-formed _______________.

Back

immediately

Front

Sodium hydroxide relaxers are commonly called _______________.

Back

lye relaxer

Front

One safety precaution for hair relaxing is to avoid _______________ the scalp with the comb or fingernails.

Back

scratching

Front

The action of a sodium hydroxide relaxer causes the hair to _______________.

Back

swell