Figure 2
Shiseido cleansing cotton features illustrated by water maintained time and contact angle on cotton hydrophobic layer.
We dropped different volumes of blue dye (10, 25, 50, 75 and 100 μL) onto the hydrophobic layer to determine water maintained time (samples number N = 4). We examined contact angle effects using 10 μL of blue dye onto the cotton hydrophobic layer (1 cm × 1 cm).
