What technique consists of wrapping hair at an angle to create a coiling effect?

The technique that consists of wrapping hair at an angle to create a coiling effect is known as a spiral wrap. In this method, the hair is wrapped around the curling rod in a vertical direction, which allows for the hair to coil and form curls that have a spiral shape. This technique is particularly effective for achieving bouncy and defined curls, as it allows the hair to maintain its natural fall while also creating volume.

In contrast, the other wrapping techniques serve different purposes and produce different results. The bookend wrap, for example, involves using a single end paper to secure the hair, which does not create the same coiling effect. The flat wrap technique involves holding the hair flat against the rod, resulting in a smoother look rather than a defined spiral. The rod wrap is a more general term that does not specify the angle at which the hair is wrapped, meaning it can refer to various styles of wrapping but does not necessarily create the distinct coiling effect seen in a spiral wrap. Thus, spiral wrap is specifically designed to achieve that coiling effect through its angled wrapping technique.