METHOD FOR DEMONSTRATING THE NON-DRIP PROPERTIES OF A HAIR DYE

摘要

A method for demonstrating the non-drip properties of a hair dye composition comprising the following steps in this order: i. application of a hair dye to a stencil, the stencil being placed over a smooth horizontal substrate; ii. tilting the smooth substrate to an angle elevation from 20 to 60 degrees in relation to a horizontal plane; iii. removal of the stencil from the smooth substrate; iv. visualization of movement of the hair dye composition on the substrate.