Final answer:
Weaving and slicing is the hair coloring technique that uses a piece of foil or thermal strip to hold lightener or color. It allows for precise and selective colouring of hair strands, differing from other techniques such as freeform painting, retouch application, and base-to-ends application.
Step-by-step explanation:
The technique that utilizes a piece of foil or thermal strip that holds lightener or color is known as weaving and slicing. This technique is a part of the hair coloring process where strands of hair are selected, and color or lightener is applied using a foil or strip to isolate them from the rest of the hair. This method allows for precise application and can create various effects in highlighting or applying color.
Unlike freeform painting, which involves a more spontaneous application of paint without the use of foils, or base-to-ends application, which typically involves applying a treatment or color uniformly from the scalp to the ends of the hair, weaving and slicing is a meticulous process. It's also different from retouch application, which is specifically for addressing hair growth at the scalp.
Comparing with other art forms such as spray painting, which creates wide expanses of color across surfaces like canvas, weaving and slicing in hairdressing focuses on small sections of hair for a more controlled and localized effect. Similarly, in the realm of hairstyling treatments such as perms and relaxers, these techniques often involve wrapping hair around forms or applying chemicals uniformly, standing in contrast to the targeted approach of weaving and slicing.