Final answer:
In cosmetology, to achieve a strong curl pattern with looseness, one should use medium to large-sized rollers, wrap the hair with moderate tension, and ensure the hair cools completely before removing the rollers.
Step-by-step explanation:
The question concerns the styling of hair to create curl patterns which is related to cosmetology, a component of health and beauty studies. To achieve a strong curl pattern with looseness in the finished set, the hair should be wrapped around the curling rod or roller with moderate tension. The size of the rod or roller will affect the tightness of the curl: smaller rods create tighter curls, while larger ones result in looser waves.
If you aim for a strong but loose curl, use a medium to large-sized roller and make sure not to wrap the hair too tightly. The wrapping technique is also key; evenly spaced and consistent wrapping without pulling too hard will give a strong pattern but still preserve the desired looseness.
Additionally, the length of time the hair is set and the cooling period after curling can have an impact on the final result. For a loose finish, you may not leave the rollers in for an extended period, and allowing the hair to cool completely before removing the rollers can help set the pattern without causing the curls to be too tight.