The hair should be wrapped around the perm rod smoothly for an even curl pattern without causing damage or resulting in limp, undefined curls. This smooth wrapping ensures even distribution of chemicals or heat during the perming process.
When applying a perm, whether thermally or chemically, it is important to wrap the hair around the perm rod smoothly. This means that the hair should be neatly and consistently wound around the rod without any bumps or irregularities that could lead to an uneven curl pattern. The objective is to ensure the chemicals or the heat can be distributed evenly throughout each section of the hair to achieve a uniform result.
While wrapping the hair tightly may seem like a good idea to produce defined curls, doing so can cause damage to the hair by putting too much tension on it. Conversely, wrapping the hair too loosely could lead to limp, undefined curls. Therefore, the focus should be on keeping the hair smooth as it wraps around the perm rods.